НОСИМЫЙ ДИСПЛЕЙ ДЛЯ ИСПОЛЬЗОВАНИЯ ВМЕСТЕ СО СТАНКОМ

Electric cutting tool

An electric cutting tool is provided which includes a motor, a cutting member driven by the motor, an illuminating device, and a controller for controlling the illuminating device. The cutting member is adapted to move in a repetitive way during operation. The controller is adapted to control the illuminating device according to a rate of a movement of the cutting member to generate an illumination varied in a particular frequency, the particular frequency making the cutting member representing a still visual effect when the cutting member is moving at the rate. As the invention using a stroboscopic effect, the electric cutting tool does not need to stop the motor or reduce the speed of the cutting to carry out the alignment, so that a high working efficiency is ensured. 9864998_1 (GHMatters) P107961.AU .3f Fig. 1 ...

ALIGNMENT TOOL

An alignment tool for connection to a work component and for use in aligning the work component with a work piece, wherein the work component has at least a first reference surface that extends in a first direction. The alignment tool includes a body having at least a first reference surface that extends in the first direction and having at least one work piece guide surface that extends in a second direction that is perpendicular to the at least first reference surface, and a clamp assembly connected to the body and extending in the second direction past the at least first reference surface of the body, wherein when the alignment tool is to be connected to the work component, the clamp assembly is movable to engage the work component and to draw together and hold in abutting engagement the respective first reference surfaces of the alignment tool and work component.

ARRANGEMENT FOR THE LUBRICATION OF SAW CHAINS

The purpose of the invention is an arrangement for the lubrication of saw chains, which comprises a grease tank (3) and apparatus for feeding grease via piping (4) to a saw chain. The apparatus for feeding grease to the saw chain (2) comprise a hydraulic device (3, 5, 6, 7), which is adapted to be powered by a hydraulic system (8, 9).

PANEL CARRIER

The present invention is panel carrier for transporting and supporting a panel. The panel carrier includes a frame and a support leg pivotally mounted to the frame. The leg is pivotal between a transport position and a working position. A support surface is provided and is pivotally mounted to the frame. The support surface is pivotal between a transport position and a working position. A panel can be positioned upon the support surface when the support surface and the support leg are in the transport position and thereafter, the support surface and the support leg can be pivoted to the working position to support the panel generally perpendicular to the frame.

Electric circular saw

DEVICE AND REMOVABLE CLOSURE ADAPTABLE TO A BOLT FOR CLOSING SUCTION OF A MACHINE AND MACHINE EQUIPPED WITH SAME

PROTECTIVE HOUSING FOR POWER TOOL

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PORTABLE CUTTING TOOL

A portable cutting tool comprises a plate shaped base having a lower surface configured to abut against a workpiece and an upper surface which carries a driving mechanism thereon, the base further having an opening formed therethrough; a cutting blade driven by the driving mechanism, the cutting blade being mounted in a manner of passing through the opening of the base; and illuminating means which comprises a light emitting element mounted to the base in a distance from a plane defined by the cutting blade, the light emitting element being adapted for generating an illumination area surrounding a cutting point of the cutting blade on the workpiece. The illuminating means can provide desired illumination area and illumination strength, and is not likely to be attached by cutting chips.

Article and corresponding kit including an article for receiving and supporting an inserting portion of a circular saw blade and a router bit in immersing fashion within a volume of a cleaning fluid

A three dimensional article and corresponding kit containing such an article exhibiting an upper accessible slot communicating with a three dimensional interior recess for receiving a likewise configured arcuate inserting portion of a circular saw blade. A volume of a cleaning solution is deposited upon interior surfaces of the article exposed to the interior recess and, upon insertion of the blade, the cleaning solution acts to remove sap and other build up contaminants typically associated with certain varieties of natural wood. The lengthwise extending surface configuration of the recess is further such that it exerts an inwardly opposing/biasing force to the inserted circular blade, this serving to retain the blade in place and further as it is slowly rotated throughout a 360° cycle to evenly clean all the perimeter extending teeth. Cleaning brushes and brush keys are also provided in the kit for assisting in cleaning the individual teeth.

MULTIFUNCTION CUTTING TOOL GUIDE

A multifunction cutting tool guide which includes a base plate having a top surface and a bottom surface, with the base plate top surface including connection points for connecting a power tool to the base plate top surface. A track extends longitudinally along the bottom surface of the base plate for use in guided cuts. The track is defined by first and second spaced walls with at least one of the walls being movable with respect to the other wall to accommodate various sized straight edges. The base also includes a laterally extending channel adapted to mount on a straight edge for rip cuts. 1. A cutting tool guide system comprising:a base plate having a top surface and a bottom surface, said base plate top surface including connection points for connecting a power tool to said base plate top surface;a track extending longitudinally along said bottom surface of said base plate, said track being defined by first and second spaced walls, at least one of said walls being movable with respect to said other wall;whereby a power tool can be attached to said base plate and said base plate can be positioned upon a straight edge, said at least one wall being movable adjacent said straight edge with said straight edge being adjacent said opposite wall, said base being movable along said straight edge to make a straight cut in a piece of material.2. The cutting tool guide system of claim 1 , wherein said base further includes a channel extending laterally along said bottom surface of said base plate.3. The cutting tool guide system of claim 2 , further including a locking member adapted to lock said base to a rip straight edge.4. The cutting tool guide system of claim 2 , further including a rip straight edge claim 2 , said rip straight edge having a track with a groove extending along said track and a laterally extending rip guide claim 2 , said channel being positioned over said track.5. The cutting tool guide system of claim 4 , further including a locking member adapted ...

Sabre saw guide assembly

A guide assembly is provided with a pair of spaced and parallel guides and includes a carriage mounted on rollers between the guides for longitudinal movement therealong. The carriage can be clamped in position or limited in movement along the guides by means of a pair of slide guides which can be detachably clamped to the guide assembly. A sabre saw is detachably secured to the carriage and the guide assembly is clamped to the work-piece to be cut whereupon the sabre saw and the carriage is pushed along the guide assembly making a straight cut or a bevelled cut in the work-piece, depending upon the setting of the sabre saw assembly. A center pivot bearing assembly is also mounted upon the guide assembly and includes an adjustable work-piece engaging screw engaging the work-piece and acting as a center pivot so that the saw can be used for circle cutting by rotating the blade assembly 90 DEG from the straight ahead position. This circle cutting can also be at a bevelled angle if desired ...

Method and apparatus for packaging saw blades

A protective cover for use on one or more saw blades. The cover is formed from a heat shrinking material that is shrunk on the saw blade(s) to provide a thin close fitting cover that protects teeth on the saw blade(s). A tag can be attached to the cover and/or saw blade(s). The tag has a security device that is spaced from the saw blade(s) to prevent interference. The tag can be used to hang the saw blade(s) from a display device. An insert card having indicia thereon can be positioned on the saw blade(s) to convey information.

Cutting tools having lighting devices

Cutting tools (1) may include a lighting device (5). The lighting device may be mounted on a tool unit (3) adjacent to a grip portion (26). Preferably, the grip portion serves to protect the lighting device from being damaged by an external force. The tool unit may include a motor case (21) for accommodating a motor. The grip portion may extend from the motor case and the lighting device may be mounted on or within the motor case. The tool unit may further include a blade case (20) that at least partly covers a cutting blade (22). The blade case may be joined to the motor case via a joining portion J defined on the motor case. In this case, the lighting device is preferably disposed proximal to the joining portion. The lighting device may include at least a first light (5a) and a second light (5b) that are arranged and constructed to illuminate different areas.

BLADE SHEATH DEVICE

In some embodiments, a blade sheath device may include an elongated body having a mouth and a terminus. A central depression may be disposed on a first side of the body and may extend between the mouth and terminus. A perimeter lip may extend around portions of the central depression. An optional handle guard may be positioned proximate to the mouth, and may extend away from the mouth. A retaining cover, which may be coupled to the perimeter lip, may extend over portions of the central depression. One or more magnet elements may be coupled to the body proximate to the central depression. A securement fastener may be coupled to the device on a second side of the body. Optionally, the device may comprise one or more apertures which extend through and between the opposing sides of the device, such as through the body and/or through a handle guard.

Cutting tool having lighting devices

ЛЕНТОЧНОПИЛЬНЫЙ СТАНОК И СПОСОБ РАСПИЛА МЕТАЛЛИЧЕСКОЙ ТРУБЫ

Способ включает использование ленточнопильного станка, который содержит стационарную нижнюю часть 1 ленточной пилы со столом 2 ленточной пилы для укладки и фиксации подлежащей распилу металлической трубы 3, подвижную относительно нижней части 1 ленточной пилы верхнюю часть 4 ленточной пилы с вращающейся пильной лентой 5, причем вращающуюся пильную ленту 5 посредством движения 13 подачи верхней части 4 ленточной пилы, которое осуществляют относительно нижней части 1 ленточной пилы, врезают в металлическую трубу 3 и проводят через нее с целью распила. Движение подачи осуществляют в основном в направлении против действия силы тяжести. Достигается повышение качества реза и увеличение стойкости пилы. 2 н. и 5 з.п. ф-лы, 3 ил.

УСТРОЙСТВО ДЛЯ СМАЗЫВАНИЯ ПИЛЬНЫХ ЦЕПЕЙ

... 1. Устройство для смазывания пильных цепей, которое содержит емкость (3) для смазки и средство для подачи смазки через систему трубок (4) в пильную цепь (2), отличающееся тем, что средство для подачи смазки в цепь (2), которое содержит гидравлическое средство (3, 5, 6, 7), выполнено с возможностью приведения в действие гидравлической системой (8, 9) пилы.2. Устройство по п. 1, отличающееся тем, что гидравлическое средство содержит корпус (5) поршня, который соединен с емкостью (3) для смазки, корпус (6) клапана, который соединен с емкостью (3) для смазки, и дозатор (7), который соединен с корпусом (6) клапана, при этом, когда гидравлическое давление пилы повышается, корпус (5) поршня приспособлен перемещать смазку из емкости (3) для смазки, сдвигая в то же время корпус (6) клапана из первого положения во второе положение, для того чтобы смазка проходила в дозатор (7), и при этом, когда гидравлическое давление падает, корпус (6) клапана приспособлен возвращаться в еще одно положение, в котором ...

УСТРОЙСТВО ДЛЯ РЕЗАНИЯ И ДЛЯ СБОРА ПЫЛИ И РАБОЧАЯ МАШИНА С ТАКИМ УСТРОЙСТВОМ

... 1. Устройство для резания и для сбора пыли, отличающееся тем, что оно содержит вращающееся полотно (4) дисковой пилы, имеющее первую сторону (20), вторую сторону (21), периферийную часть, ограничивающую рабочую часть полотна пилы, и центр (23) вращения, покрывающее устройство (6) с расположенным в его задней части оконечным элементом (52), имеющее передний конец, задний конец, верхнюю поверхность, нижнюю поверхность (36), проходящую в плоскости, и продольный проход (45, 46) для полотна пилы, проходящий через покрывающее устройство от его верхней поверхности до его нижней поверхности в области между его передним и задним концами, при этом полотно пилы выполнено с возможностью перемещения вверх и вниз в указанном проходе, так что сегмент (4а) полотна пилы проходит через нижнюю поверхность покрывающего устройства, и во время этого перемещения указанный центр вращения, который расположен над покрывающим устройством, смещается относительно покрывающего устройства, причем оконечный элемент содержит ...

УСТРОЙСТВО ДЛЯ РАЗДЕЛЕНИЯ ЗАГОТОВКИ ВДОЛЬ ЛИНИИ РАЗДЕЛЕНИЯ

Öltank für eine Handwerkzeugmaschine und Handwerkzeugmaschine damit

Die Erfindung geht aus von einem Öltank (10) für eine Handwerkzeugmaschine, insbesondere für eine Kettensäge (36), mit zumindest einem Öltankgehäuse (12) aufweisend eine Befüllungsöffnung (16) und eine separat von der Befüllungsöffnung (16) ausgebildete Auslassöffnung (27).Es wird vorgeschlagen, dass Mittel vorgesehen sind um einen Filter (22) derart am und innerhalb des Öltankgehäuse (12) zu fixieren, dass dieser die Auslassöffnung (27) überdeckt.

Trennvorrichtung mit Lichtgeräten

Power saw for felling trees has an acoustic signal unit with dead man switches at the handle and/or housing to sound a warning at the final cutting stage

The power saw (1), with a motor (3) in a housing (2) to drive the saw (5), is fitted with an acoustic signal unit (6) with one or more dead man switches (7) at the handle (4) or the housing (2), located within a trough or recess.

Saw, such as a miter saw

Improvements relating to jigs

A band saw table (1) has grooves (6,7) in its upper surface to receive flat bars (9) which can slide along them and be clamped in desired positions. One bar (9) carries a member (13) which can be angularly adjusted about an axis normal to the table (1) and to which a fence can be fitted. This is adjustable in its longitudinal direction, and it has means for holding a workpiece to it. The workpiece can thus be presented to the saw blade at any angle and at selected points. Use of the jig for moulding curved cuts is described.

A detachable rain cover for an electric mitre saw

The invention entails a wet weather cover for an electric mitre saw, the cover protecting the electric mitre saw such that it can be used in the rain. The cover is a one piece cover, and can be attached and detached from the mitre saw. It serves primarily to enclose the motor 1, and also blankets the main body 5 up to the handle 4. The rain cover is preferably manufactured from durable breathable brightly coloured nylon and secured to the mitre saw by way of Velcro (RTM) straps 2, 5. The cover is ideally shaped such that the part of the object being cut by the blade 6 is not obscured. The cover preferably comprises a tail 7 which allows any sliding action of the mitre saw to be utilized without snagging.

Power tool with debris collection chute

A power tool (10, fig 1A) comprises a housing assembly including a housing portion and an arm B14 extending upwardly from the housing portion, the arm having an outer surface. A drive unit is supported by the arm, the drive unit being operable to drive a tool element to work on a work piece. A collection assembly is provided, which is operable to collect debris generated by the tool element working on the work piece. The collection assembly includes a collection chute assembly having an inlet C78 and an outlet C82, the collection chute assembly being positionable on the arm to define, between the inlet and outlet, a first path for debris around one side of the outer surface of the arm and a second path for debris around the other side of the outer surface of the arm. Preferably, the chute assembly comprises a first chute member C70 on one side of the arm, and a second chute member C74 on the other side of the arm, the first and second chute members being connectable around the arm. The ...

Saw, such as a miter saw

Improvements in fences for band saw machines and the like

... 507,326. Saw fences. WOOSTER, A. S. A. Dec. 10, 1937, No. 34212. [Class 145 (ii)] A fence of the radius bar type for circular cutting by band saws and like machines is provided with stops adapted to position the work on the radius bar in two perpendicular directions. The radius bar d is adjustably pivoted at e to a member b carried by a track a rigidly secured to the table of the machine. The work w is positioned on the end of the bar by radially adjustable stops l, k, and an adjustable end stop n. In a modification, the pivoted fence is adapted for cutting work having a curved portion merging into a rectangular one.

Multifunction cutting tool guide

A multifunction cutting tool guide which includes a base plate having a top surface and a bottom surface, with the base plate top surface including connection points for connecting a power tool to the base plate top surface. A track extends longitudinally along the bottom surface of the base plate for use in guided cuts. The track is defined by first and second spaced walls with at least one of the walls being movable with respect to the other wall to accommodate various sized straight edges. The base also includes a laterally extending channel adapted to mount on a straight edge for rip cuts.

RESAW

A resaw has twin arbers with one to six blades mounted on each arber. In addition, the resaw has a rotatable fence with a continuous belt along its periphery. Two side pressure rollers are mounted adjacent to the rotatable fence between an entrance to the resaw and the blades. A workbed of the resaw is made up of a series of spiked rollers. Just prior to an exit from the resaw, there is located a top roller which is mounted normal to the side pressure rollers and can move further away from or closer to the workbed. The arbers are each powered by an electric motor. The rotatable fence, the side pressure rollers and the spiked rollers are all powered by hydraulic motors connected to a single power source and all rotate at the same speed at any given time. The side pressure rollers are automatically adjustable so that they exert pressure towards the rotatable fence on any wood that is located between said rollers and said fence. The side pressure-rollers, the rotatable fence and the spiked ...

ARRANGEMENT FOR THE LUBRICATION OF SAW CHAINS

The purpose of the invention is an arrangement for the lubrication of saw chains, which comprises a grease tank (3) and apparatus for feeding grease via piping (4) to a saw chain. The apparatus for feeding grease to the saw chain (2) comprise a hydraulic device (3, 5, 6, 7), which is adapted to be powered by a hydraulic system (8, 9).

Slitting machine for machining transmission antenna steel belt protective sleeve

Universal joint for automatic plane sawing machine

DEVICE ADAPTABLE FOR REMOVABLE CLOSURE AND A BOLT CLOSURE SUCTION OF AN INDUSTRIAL PROCESSING PLANT AND MACHINE EQUIPPED WITH SAME

La présente invention concerne un dispositif (1) de mise en obturation destiné à une targette (2) présentant une ouverture (2a) pour la réception d'un tuyau d'aspiration de poussières et résidus dans une machine de travail industriel, la targette (2) présentant un obturateur (2b) de son ouverture (2a) mobile. Le dispositif (1) présente un chariot (3) et des moyens d'entraînement (5, 7) du chariot engageant directement ou indirectement une portion (2c) de l'obturateur (2b) de la targette (2) pour le déplacement sélectif de l'obturateur (2b) et comporte des moyens amovibles de positionnement (4) par rapport à la targette (2) ou un élément fixe de la machine relié à la targette (2). L'invention concerne aussi une targette, une machine de travail industriel, un ensemble d'au moins une machine avec un système d'aspiration et son procédé de fonctionnement. Applications dans le domaine du travail industriel, notamment du travail du bois.

Band saw for stone - uses oscillating platform to mount work under height adjustable band traversing pulleys mounted on telescopic columns

Apparatus for cutting out the elements of arches, in a rounded fashion

CUTTING GROOVE SPACING DEVICE OF METAL PLATE AND METAL PLATE CUTTING SYSTEM

The present invention relates to a metal plate cutting system, and a cutting groove spacing device of a metal plate enabling a cutting groove to be spaced when the metal plate is cut to reduce friction between a circular blade and the metal plate. The present invention comprises: first and second contact head units coming in contact with one surface and the other surface of the cutting groove of each metal plate and accessing while facing each other; and a driving unit applying a force in the direction where the first and second contact head units get away from each other. COPYRIGHT KIPO 2017 ...

POWER TOOL, ESPECIALLY HAND-HELD POWER TOOL

The invention relates to a power tool (1), especially a hand-held power tool such as a jigsaw (2), which comprises a lighting system (2) for the field of vision (10) on the work area side. Said lighting system serves as an optical transmitter which projects user-relevant information into the field of vision.

Circular work attachment

Protective housing for transporting circular saw blades

A protective housing is provide for transporting circular saw blades, comprising an integral structure formed of a face plate, a lateral flange at each of two opposite edges disposed perpendicularly to the face plate, and a foot flange extending perpendicularly from each lateral flange adapted to engage a supporting surface. A carriage bolt extends through and aperture in the center of the face plate. A plurality of circular saw blades may be placed in the structure inside the foot flanges, and the carriage bolt inserted through the aperture in the face plate and through the apertures in the centers of the saw blades. A nut, such as a wing nut, is then screwed onto the carriage bolt and tightened down against the saw blades. The housing provides a convenient means for transporting the blades to and from a job, providing protection for the blades themselves, the workman, and the environment.

Container for storing multiple saw blades

A modular container for stackably storing and transporting multiple circular saw blades. The container includes multiple storage trays wherein each storage tray is able to hold one or more circular saw blades of varying diameters. The storage trays have graduating annular raised surfaces to hold saw blades securely in place during transport thereby preventing injury to the transporter and protecting the cutting teeth of the circular saw blades from being damaged due to movement within the storage container. Each storage tray horizontally pivots open to allow the user easy access to the circular saw blades stored therein.

ARCH CUTTING JIG

An jig for a hand-held saw having a powered blade includes a slotted trammel arm, one end of the arm being formed for fixably engaging a guide holder of the saw. A clamp assembly fixably locatable on the workpiece includes a frame having a planar face member for contacting a face of the workpiece, an edge member perpendicular to the face member for contacting an edge of the workpiece, the clamp assembly defining a pivot axis that is oriented perpendicular to the face member; a pivot member rotatably connected to the clamp assembly on the pivot axis and projecting from the face member opposite the edge member, the pivot member having a head portion and a shank portion that protrudes the slot of the arm. A fastener threadingly engages the shank portion of the pivot member for rigidly clamping the trammel arm, the arm being pivotally connected to the clamp assembly on the pivot axis, a spacer element for spacing the trammel arm above the face member, whereby the saw is guided in an arc concentric ...

УСТРОЙСТВО ДЛЯ СМАЗЫВАНИЯ ПИЛЬНЫХ ЦЕПЕЙ

Изобретение относится к деревообрабатывающей промышленности, в частности к устройствам для смазывания пильных цепей. Устройство содержит емкость для консистентной смазки и средство для подачи консистентной смазки через систему трубок в пильную цепь. Средство для подачи консистентной смазки в цепь содержит гидравлическое средство и выполнено с возможностью приведения в действие гидравлической системой пилы. Гидравлическое средство содержит корпус поршня, корпус клапана и дозатор, который соединен с корпусом клапана. Корпус поршня и корпус клапана соединены с емкостью для консистентной смазки. Когда гидравлическое давление пилы повышается, корпус поршня приспособлен перемещать смазку из емкости для консистентной смазки, сдвигая в то же время корпус клапана из первого положения во второе положение, для того, чтобы смазка проходила в дозатор. Когда гидравлическое давление падает, корпус клапана приспособлен возвращаться в еще одно положение, в котором дозатор приспособлен открываться, позволяя ...

СПОСОБ УПРАВЛЕНИЯ СИСТЕМОЙ УСТРОЙСТВ С РАБОЧИМ ИНСТРУМЕНТОМ И МОТОРИЗОВАННЫМ УСТРОЙСТВОМ ПОДАЧИ

Изобретение относится к способам управления устройствами с рабочим органом и моторизованным устройством подачи и может быть использовано при обработке заготовок резанием. Способ включает движение подвода стойки пилы с полотном пилы на врезание в заготовку, во время которого посредством контрольного устройства рассчитывают длину дуги полотна пилы, находящейся в зацеплении с заготовкой, сравнивают ее с заданной критической длиной, при их соответствии прерывают движение подвода стойки пилы и осуществляют движение подачи полотна пилы в прямом направлении вдоль направления подачи. Рассчитывают продвижение полотна пилы в прямом направлении, сравнивают его с заданным первым продвижением, при их соответствии упомянутое движение прерывают и осуществляют дополнительное движение подвода стойки пилы в заготовку, во время которого рассчитывают длину дуги полотна пилы, находящейся в зацеплении с заготовкой, и сравнивают ее с критическим значением длины дуги. Изобретение направлено на увеличение скорости ...

НОСИМЫЙ ДИСПЛЕЙ ДЛЯ ИСПОЛЬЗОВАНИЯ ВМЕСТЕ СО СТАНКОМ

Изобретение относится к области отображения изображений. Технический результат заключается в обеспечении отображения графической информации на прозрачном просмотровом экране. Технический результат достигается за счет носимого устройства отображения, выполненного с возможностью ношения пользователем, при этом носимое устройство отображения имеет прозрачный просмотровый экран, выполненный с возможностью отображения графической информации на прозрачном просмотровом экране для просмотра графической информации пользователем в то время, когда пользователь смотрит через прозрачный просмотровый экран, при этом носимое устройство отображения выполнено с возможностью отображения информации от источника на прозрачном просмотровом экране для просмотра пользователем, включает в себя по меньшей мере одно из камер и датчиков, выполненных с возможностью обнаружения объекта в поле зрения носящего устройство, выполнено с возможностью и пригодно для отображения подсветки, соответствующей объекту в поле зрения ...

СПОСОБ УПРАВЛЕНИЯ СИСТЕМОЙ УСТРОЙСТВ С РАБОЧИМ ИНСТРУМЕНТОМ И МОТОРИЗОВАННЫМ УСТРОЙСТВОМ ПОДАЧИ

СПОСОБ УПРАВЛЕНИЯ СИСТЕМОЙ УСТРОЙСТВ ПРИ РАЗДЕЛЕНИИ ЗАГОТОВКИ ВДОЛЬ ЛИНИИ РАЗДЕЛЕНИЯ

Producing circular or part-circular cuts in building material - involves diamond rope saw and involves boring central hole and two further holes indicating periphery of circle

The bearing shaft (1) is used in conjunction with bearer arms (11), the shaft having projections and the arms recesses for angularly accurate, coodinated positioning on the bearing shaft. The bearer arms are fitted in a clamp jaw arrangement, and are adjustable as to length by releasing or tightening the clamp jaws. They are formed by two parallel bearer bars (13, 14). In the end areas of the bearer arms are rollers (17) which are so arranged that they permit a rolling movement around the central bearing shaft (1). The rope saw runs over changeover rollers, each of which is contained in a housing (25) which has an elastic sealing means in the area of its edge facing the material to be sawn. USE - For producing circular or part-circular cuts in building material.

Vorrichtung zum Lösen eines im Mauerwerk oder Betondecken klemmenden Sägeblattes

Dargestellt und beschrieben ist eine Vorrichtung zum Lösen eines im Mauerwerk oder Betondecken klemmenden Sägeblattes. Die Aufgabe der Erfindung besteht deshalb darin, eine neue Vorrichtung zu schaffen, mit welcher es möglich wird, auf sehr einfache Weise und ohne manuelle Arbeit das Sägeblatt zu lösen. Die Lösung der Aufgabe ergibt sich aus dem Anspruch 1 und insbesondere aus den Merkmalen des Kennzeichenteils, wonach eine am Sägeblatt (12) lösbar angeordnete Vorrichtung (10) zur Erzeugung eines von einem Klemmbereich (K) weg gerichteten Schlagimpulses, die aus einem an und/oder in einem Führungsbauteil (23) beschleunigbaren und auf eine Anschlagfläche (24) auftreffenden Gewicht (25) gebildet wird.

Führungsschiene für eine Werkzeugmaschine

Eine Führungsschiene für eine Werkzeugmaschine weist eine Seite auf, die mit einer selbsthaftenden Oberfläche versehen ist.

MASCHINE ZUM BEARBEITEN DER KANTEN VON STEINPLATTEN IN BOGENFOERMIGEN KONTUREN.

Device for fixing guide rail of rail guide tool appliance, especially saw, to base has based body with at least one protruding guide bridge and fixing devices between guide bridge(s) and pivoting part for fixing pivoting part in position

The device (1) has a base part (11) and a pivoting part (21). The base part has a base plate (12) for fixing to the base (3) and a protruding bearer bridge (13). The pivoting part has a holding section for fixing the guide rail to the device and is pivotably fixed to the end of the bearer bridge by a bearing (17). The base body also has at least one protruding guide bridge (14,19) and two fixing devices (31) are provided between the guide bridge(s) and the pivoting part for fixing the pivoting part in position.

An attachment for a hand-held jigsaw

An attachment 13 for a hand-held jigsaw 1 of a type comprising a motor housing 3 provided with a handle 5, and a blade 9 extending from the motor housing, the attachment comprising support means 19 to support the jigsaw and an elongate guide surface 38, which extends along the base of the attachment. In use, the attachment is moved along a piece of material being cut with the guide surface abutting a piece of guide material (51, fig 6), the abutment between the guide surface of the attachment and the piece of guide material guiding the direction of cutting of the blade of the jigsaw.

Apparatus for use in disc manufacture and a method thereof

APPARATUS FOR USE IN DISC MANUFACTURE AND A METHOD THEREOF

Panel saw

Die Erfindung betrifft eine Plattensäge (1) zum Trennen von plattenförmigen Werkstücken (2) in mehrere Abschnitte, umfassend: - ein Maschinengrundgestell (3); - eine Werkstückauflage (4) mit einem Sägeschlitz (5); - ein Sägeaggregat (7) welches unterhalb der Werkstückauflage (4) angeordnet ist, wobei am Sägeaggregat (7) ein Kreissägeblatt (6) angeordnet ist, welches in einer Sägestellung (34) durch den Sägeschlitz (5) hindurchragt und in Sägerichtung (8) verschiebbar ist; - eine Niederhaltevorrichtung (9) zum Klemmen des Werkstückes (2) an der Werkstückauflage (4); - eine Positioniervorrichtung (12) zum Positionieren des Werkstückes (2).

HANDLING CRADLE FOR A POWER STATION WITNESS

Cutting and dust collecting assembly and working machine with such assembly

A cutting and dust collecting assembly comprises a rotatable, circular saw blade (4) having a first side (20), a second side (21), and a cover device (6) with a terminal member (52). The bottom surface (36) of the cover device extends in a plane. A longitudinal passage (45, 46) for the saw blade extends through the cover device from its top surface to its bottom surface. The terminal member comprises a terminal chamber (60) having an inlet (45a), the mouth of which coincides with the plane of said bottom surface. An outlet (58) can be connected to a vacuum source. The direction of rotation of the operating blade is such that the rear part (4a) of the saw blade which has passed beyond the bottom surface of the cover device will move in a direction upwards-rearwards towards the bottom surface. The invention also concerns the cover device, a sealing body belonging to the cover device and a working machine which is provided with the cutting and dust collecting assembly.

ALIGNMENT TOOL

An alignment tool for connection to a work component and for use in aligning the work component with a work piece, wherein the work component has at least a first reference surface that extends in a first direction. The alignment tool includes a body having at least a first reference surface that extends in the first direction and having at least one work piece guide surface that extends in a second direction that is perpendicular to the at least first reference surface, and a clamp assembly connected to the body and extending in the second direction past the at least first reference surface of the body, wherein when the alignment tool is to be connected to the work component, the clamp assembly is movable to engage the work component and to draw together and hold in abutting engagement the respective first reference surfaces of the alignment tool and work component.

Automatic detection mechanism for power-off time of chain saw

Small multifunctional handheld cutting machine

TESTING GROUND OF DEVELOPMENT, FIXING OF THE SLICERS, TREEDOZERS AUBANC, SECURITY SYSTEM PROTECTION OF THE CUTTING TOOLS MOVING

DISPOSITIF DE GUIDAGE POUR UNE MACHINE A SCIER PORTATIVE

A.DISPOSITIF DE GUIDAGE POUR MACHINE-OUTIL PORTATIVE. B.DISPOSITIF CARACTERISE EN CE QUE LA BARRE DE GUIDAGE 10, 22 PORTE AU MOINS UNE PATTE 13, 14, 23 DISPOSEE PERPENDICULAIREMENT A SA SURFACE DANS UN PLAN PARALLELE AU PLAN CONTENANT LA REGLE DE POINTAGE 6, 20 ET PRESENTANT AU MOINS UN PERCAGE DE RECEPTION 15, 16, 24, 25 POUR LA POINTE DE CENTRAGE 19, ET EN CE QUE LA LONGUEUR DE LA POINTE DE CENTRAGE 19 EST DETERMINEE POUR QUE CELLE-CI PENETRE, EN TRAVERSANT LE PLAN CONTENANT LA REGLE DE POINTAGE 6, 20, DANS UNE PIECE DISPOSEE AU-DESSOUS DE LA PLAQUE D'APPUI 3 DE LA MACHINE-OUTIL PORTATIVE 1. C.DISPOSITIF APPLICABLE A UNE MACHINE.

COOLING WATER FILTER FOR MACHINING TOOL

The purpose of the present invention is to provide a cooling water filter for a machining tool including a cylindrical filter composed of a filter body formed into a shape that multiple creases are formed in a radial direction and upper and lower caps made of a synthetic resin and integrated with upper and lower parts of the filter body, respectively, and a case wherein a steel perforated plate with multiple through-holes is bent into a cylindrical shape to be overlapped on a part of the case in order to cover the circumference of the filter and adhering to the filter by locking the overlapped part with a locking means. The cooling water filter for a machining tool is capable of filtering various kinds of foreign materials contained in cooling water, reducing initial investment costs by simply forming a structure thereof, providing the convenience of replacing the filter, improving filtering efficiency by enabling upper and lower parts of the filter to be in a free state, and obtaining ...

금속 판재의 절단홈 이격 장치 및 금속 판재 절단 시스템

... 본 발명은 금속 판재 절단 시 절단홈을 이격하여 원형톱날과 금속 판재간의 마찰을 줄여줄 수 있는 금속 판재의 절단홈 이격 장치 및 금속 판재 절단 시스템에 관한 것으로서, 각각 금속 판재의 절단홈의 일면과 타면에 접촉할 수 있고, 상호 대향하는 상태로 진입하는 제 1, 2 접촉 머리부; 및 상기 제 1, 2 접촉 머리부가 상호 멀어지는 방향으로 힘을 인가하여 상기 절단홈의 일면과 타면이 상기 제 1, 2 접촉 머리부에 의해 가압되어 이격 상태가 유지되도록 하는 구동부; 및 상기 제 1 접촉 머리부 및 상기 제 2 접촉 머리부가 상기 금속 판재의 상기 절단홈의 정위치에 정렬될 수 있도록 상기 제 1 접촉 머리부 및 상기 제 2 접촉 머리부를 이동하는 머리부 이동 장치;를 포함할 수 있다.

arranjo para lubrificação de correntes dentadas

Circular cutting device

A circular sawblade useful in cutting circular figures from a planar material utilizing a power source to rotate the sawblade where the blade has a selected degree of concativity to accommodate the radius of the circular figure to be cut from the planar material. The present invention further comprehends a saw device to mount the blade for rotation where the cutting plane of the material can be selectively adjusted with respect to the degree of concativity of the sawblade to selectively adjust the angle between the surface cut by the blade and the planar surface of the material.

Apparatus for packaging saw blades

A protective cover for use on one or more saw blades. An insert can be positioned on the saw blade(s). The cover is formed from a heat shrinking material that is shrunk around the saw blade(s) to provide a thin close fitting cover that protects teeth on the saw blade(s). A tag can be attached to the cover and/or saw blade(s) and/or an insert. The tag has a security device disposed thereon. The tag can be used to hang the saw blade(s) from a display device.

Cutting tools having lighting devices

Cutting tools (1) may include a lighting device (5). The lighting device may be mounted on a tool unit (3) adjacent to a grip portion (26). Preferably, the grip portion serves to protect the lighting device from being damaged by an external force. The tool unit may include a motor case (21) for accommodating a motor. The grip portion may extend from the motor case and the lighting device may be mounted on or within the motor case. The tool unit may further include a blade case (20) that at least partly covers a cutting blade (22). The blade case may be joined to the motor case via a joining portion J defined on the motor case. In this case, the lighting device is preferably disposed proximal to the joining portion. The lighting device may include at least a first light (5a) and a second light (5b) that are arranged and constructed to illuminate different areas.

HANDHELD WORK APPARATUS

A handheld work apparatus has a drive motor which drives a work tool rotationally via a belt drive. The belt drive has a first, driving pulley and a second, driven pulley. The second pulley is connected fixedly to the work tool so as to rotate therewith. The rotational speed of the second pulley is lower during operation than that of the first pulley. A brake unit acts on the belt drive. A first drive belt of a first stage and a second drive belt of a second stage act between the pulleys to transfer the drive torque. The belts each bring about a rotational speed reduction. The belt drive includes a redirection roll which bears against the belt, via which the highest drive torque is transmitted during operation. As a result, a braking operation of the work tool is enabled independently of the rotational speed of the tool.

CIRCULAR SAW APPARATUS WITH INTEGRATED MULTISTAGE FILTRATION SYSTEM

Various dust collection apparatuses are disclosed, which include a vacuum source, a circular saw blade, and a worktable comprising a center slot axially aligned to the circular saw blade. In a first aspect, the center slot includes an air flow channel proximate to an anticipated point of contact between the circular saw blade and a workpiece, and the vacuum source is configured to provide a focused negative pressure beneath the worktable via the air flow channel. In another aspect, the vacuum source provides a negative pressure beneath the worktable at the center slot, and a multistage filter is included to collect airborne dust drawn by the negative pressure from an area proximate to the center slot. In yet another aspect, the vacuum source is configured to provide a first negative pressure beneath the worktable at the center slot, and a second negative pressure via an auxiliary port.

Conductive Boot for Power Tool Protection

Apparatus configured for high voltage power line maintenance and repair. In some embodiments, a power tool has a housing that encloses an electrical load and a control electronics module, the housing having a first shield layer of conductive material and being open at one end to receive a removable battery pack. A conductive boot removably attaches to the housing to surround the battery pack, the boot having a second shield layer of conductive material which, when installed onto the boot, combines with the first shield layer to form a combined shield that nominally encloses the power tool and the boot. A locking feature interlocks the boot to the housing. In further embodiments, the power tool is supported at a distal end of an insulated hot stick. A user interface is supplied at a proximal end of the hot stick to selectively activate the power tool.

Geeignete Schutzhaubebaugruppe für Kraftwerkzeuge

Schutzhaubebaugruppe für Kraftwerkzeuge, aufweisend: eine Schleifschutzhaube mit einer Montageachse; eine Schneidschutzhaube, die demontierbar mit der Schleifschutzhaube verbunden ist; wobei, die Schleifschutzhaube aufweist: einen Montageabschnitt, der entlang der Montageachse mit dem Kraftwerkzeug verkoppelt ist; eine Schleifanschlagplatte, aufweisend eine sektorförmige Plattenfläche, deren Mitte die Montageachse ist; eine Schleifseitenplatte, aufweisend eine am Rand der Schleifanschlagplatte angeordnete bogenförmige Plattenfläche; mehrere Positionierungssäulen, die entlang der radialen Richtung der Montageachse an der äußeren Seitenfläche der Schleifseitenplatte vorsteht; und wobei mindestens eine von den Positionierungssäulen einen Klemmschlitz ausbildet; und wobei die Schneidschutzhaube aufweist: Schneidanschlagplatte, die mit einer der sektorförmigen Plattenfläche der Schleifanschlagplatte entsprechend angeordneten sektorförmigen Plattenfläche versehen ist; eine Schneidseitenplatte ...

Vorrichtung und Verfahren zum Bearbeiten eines Werkstücks

The invention relates to a device for machining workpieces (11), especially for sawing a workpiece with a saw blade (12). The device contains a brushing device (19) which is arranged displaceably, in such a way that the brushing device can be moved to the workpiece (11), which is introduced into a fixing device, after said workpiece has been machined by a machining tool (12). In particular, the machining tool (12) and the brushing device (19) can be positioned on swivel arms on different sides of a table (10) in such a way that they can swivel, this swivelling movement being effected by means of (pneumatic) cylinders (14, 15). In order to achieve short cycle times, the brushing device (19) is moved to the workpiece (11) while the machining tool (12) is moved away from the workpiece when the machining process is complete. In the event that a workpiece (11) is divided into two parts, these parts are preferably moved apart with a sliding part of the fixing device before the brushing process ...

Improvements in wood working machinery

... 342,792. Band-sawing; cutting curvilinear outlines. WILSON, W. E., Forest Products Research Laboratory, Princes Risborough, Buckinghamshire. Nov. 12, 1929, No. 34481. [Classes 145 (i) and 145 (ii).] A work supporting base 1, which is bolted to the table of a band - sawing machine or to a tilting block attached thereto, has a slot 5 to accommodate the saw, and at rightangles thereto a second slot 7 through which projects an adjustable centring point 10. The latter is fixed to a sliding block 8 which is guided in a housing 6 and connected to a rod 9 provided with adjustable stop collars 11, 13. Alternatively the centring point may be carried by a plate movable over a base having a saw slot. Curves of any desired shape may be cut by revolving the work about the centring point, which is advanced and retracted as required either by hand or automatically. A circular disc may be mounted on the centring point for use as a guide when cutting parallel curves, as in chair-backs, and bevelled edges ...

Power tool with detent assembly to select angular position

A power tool comprises a housing, and a drive unit supported by the housing for pivoting movement about an axis D28, the drive unit being operable to drive a tool element to work on a work piece. A detent assembly B82 is provided, which is operable to position the drive unit relative to the housing in a selected angular position. A locking assembly B30 is operable to lock the drive unit in the selected angular position, and includes a brake surface B38 defined by one of the housing and drive unit, and a brake member B42 supported by the other of the housing and drive unit. The brake member is movable relative to the brake surface between a braking position, in which the brake member applies a friction force to the brake surface to lock the drive unit in the selected angular position relative to the housing, and a release position, in which the drive unit is movable relative to the housing. A biasing member (B66, fig 67C) is operable to bias the brake member to the braking position, and ...

Arrangement for the lubrication of saw chains

The purpose of the invention is an arrangement for the lubrication of saw chains, which comprises a grease tank (3) and apparatus for feeding grease via piping (4) to a saw chain. The apparatus for feeding grease to the saw chain (2) comprise a hydraulic device (3, 5, 6, 7), which is adapted to be powered by a hydraulic system (8, 9).

Transmission belt adjustment for a power cutter

The present invention relates to a portable power tool (1 ) arranged for driving a rotatable cutting tool (2). The power tool (1 ) comprises a motor (5) and a transmission part (4) that is arranged to transfer power from the motor (5) to a tool holder (10), and comprises a first arm part (11; 11 ') and a second arm part (12; 12'). The first arm part (11; 11 ') comprises a first belt pulley (13) and the second arm part comprises a second belt pulley (14), the arm parts (11, 12; 11 ', 12') being slidably connected to each other. The belt pulleys (13, 14) are spaced apart by a certain distance (d-i, d2). The transmission part (4) further comprises a tensioning device (20) with a rod (21 ), a pre-tensioned resilient device (22), a linkage arrangement (25) and a rotatable part (26). The rotatable part (26) is rotatable between a first, released, state where the belt pulleys (13, 14) are spaced apart by a first distance (d-i ), and a second, tightened, state where the belt pulleys (13,14) are ...

CHANNEL SAMPLE SAW AND SPACER

A spacer for attaching a first rotary blade and a second rotary blade to a rotary blade saw comprises a main block having a first side and a second side, the first side and the second side being parallel and the main block having with a bore through the center of the block in a direction perpendicular to the first side and the second side, the bore being a center point of the first side and the second side. There is a first protrusion extending from around the bore on the first side, perpendicular to the first side, the protrusion sized to fit into a center hole on a the first rotary blade. A second protrusion extends from around the bore on the second side, perpendicular to the second side, the second protrusion sized to fit into a center hole on the second rotary blade.

MULTIFUNCTION CUTTING TOOL GUIDE

A multifunction cutting tool guide which includes a base plate having a top surface and a bottom surface, with the base plate top surface including connection points for connecting a power tool to the base plate top surface. A track extends longitudinally along the bottom surface of the base plate for use in guided cuts. The track is defined by first and second spaced walls with at least one of the walls being movable with respect to the other wall to accommodate various sized straight edges. The base also includes a laterally extending channel adapted to mount on a straight edge for rip cuts.

Component cutter with automatic slag removal function

Appareil pour decouper en arrondi les elements des arches

Appareil a decouper les elements constitutifs des arches, sans tracages prealables des pieces. Cette invention s'applique au domaine du bois. Il peut aussi concerner les elements en plastique, ou en metaux tendres, si la scie a ruban peut les decouper. Cet appareil se compose de trois parties solidaires les unes des autres. La premiere partie se fixe sur le plateau de n'importe quelle scie a ruban, a droite ou a gauche de la lame. La deuxieme partie, encastree et bloquee dans la premiere, est la piece maitresse de l'appareil. C'est elle, qui grace a sa saignee longitudinale, courbe, representant un arc de cercle, permet la decoupe des elements arrondis, a un rayon donne. Cette piece amovible s'enleve et se replace tres facilement quand on veut modifier le rayon de coupe d'un element. La troisieme piece, mobile, sert de guide et de support a l'element a usiner. Ses goujons de la face du dessous, suivent la saignee de la piece 2, tandis que les goujons du dessus maintiennent l'element a decouper ...

PIPE CUTTING APPARATUS AND METHOD THEREOF

The present invention relates to a pipe cutting apparatus. According to the present invention, the apparatus comprises: a pipe loading unit (20) to clamp both outer circumferential surface of a loaded pipe (P) in an upper part of a base plate (10); a chucking unit (30) installed at one end of the base plate (10) in the longitudinal direction of the base plate (10) to be able to move and to rotate the fixated pipe (P) while fixating an inner diameter of one end part of the pipe (P) fixated by the pipe loading unit (20); a shaft support unit (40) pressurizing the outer circumferential surface of the pipe (P) on the other side of the base plate (10) corresponding to the chucking unit (30) to clamp the pipe (P) to be able to rotate; and a cutter unit (50) to rotate the pipe (P) while cutting the pipe (P) axially supported by the chucking unit (30) and the shaft support unit (40) in the other end part of the base plate (10) by more than a predetermined thickness. Thereby, the pipe is continuously ...

CIRCULAR SAW CUTTING DEVICE INCLUDING WEIGHT-CONTROLLABLE WEIGHT APPLICATION STRUCTURE

According to the present invention, a circular saw cutting device including a weight-controllable weight application structure, capable of cutting a cutting object, moved to a cutting part by a transfer module, by moving a cutting assembly with a circular saw horizontally along an LM rail. The present invention comprises: a weight application structure installed in the cutting assembly, and providing a three-dimensional structure by connecting multiple connection bars with each other; and a weight providing module installed between the connection bars of the weight application structure, and comprising a first body surrounded by a first cover and including a space in the first cover, a second body separated from the first cover by a partition and surrounded by a second cover to include a space in the second cover, an opening and closing part formed on a side of the first and second covers to be openable, and a filler filling the first and second bodies through the opening and closing part ...

Portable container for saw blade and other table saw accessories

A portable container to hold saw blades and accessories for a table saw has a cover and a base and an integrally formed handle at one end. The handle includes a snap latch and a push-to-release button assembly to hold the container in a closed position and that can be depressed to open the container. The assembly is positioned on the outer edge of the handle. The container also includes a raised position on the cover in which a flat wrench can be stored. Other tools are stored within the container by retaining tabs forms on the inner side of the cover. A post is extends for the inner side of the base to hold the blades and the flat wrench. The post is tubular so that the container can be removably attached to a table saw.

Control method and system for a sawing machine

The present invention relates to a control method in a system comprising —a server unit having computer means, communication means and a first data base, said first data base including positioning data and a plurality of work orders, wherein said work orders are related to said positioning data; and —a sawing machine having computer means and communication means, and being arranged for sawing trenches in an area; said method comprising the steps of: —transmitting, by said server unit, a first data flow A comprising a first work order to said sawing machine; and —controlling said sawing machine by means of said first work order. Furthermore, the invention also relates to a system thereof.

ELECTRIC WORKING TOOL

A chainsaw (electric working tool) includes a body case, a cutting part (working implement), and a motor, wherein the motor is mounted in a motor case disposed in a cooling route; an intake communicating with the cooling route is opened on the body case and communicates through the retention chamber with the cooling route; an air filter is inserted into the body case and arranged adjacent to the intake; the body case has a filter insertion/extraction hole opened thereon and the hole communicates with the retention chamber, through which hole the air filter is attachable to and removable from the retention chamber and be a cover for it.

TOOL FOR FACILITATING THE CUTTING OF SHINGLES

A tool for facilitating the cutting of shingles having a base plate and a tubular member. The tubular member comprises a slot on the horizontal surface of the tubular member that extends the entire length of the tubular member and that is offset from the center of the tubular member. The base plate comprises a semicircular cutout with a terminal point that coincides with the center point on the first side edge of the tubular member. The first side of the tubular member is aligned with the longitudinal axis of the base plate so that the tubular member is off-center on the base plate. 1. A tool for facilitating the cutting of shingles comprising:(a) base plate that is rectangular in shape, the base plate having a semicircular cutout that extends inward from a first edge of the base plate and terminates at a center of the base plate, wherein the semicircular cutout is situated an equal distance from a top edge of the base plate and a bottom edge of the base plate, wherein the semicircular cutout comprises a terminal point, and wherein the terminal point of the semicircular cutout coincides with a center point on a first side edge of the tubular member; and(b) a tubular member that is square in shape and that extends longitudinally from the top edge of the base plate to the bottom edge of the base plate, wherein the tubular member has a top surface and a length, wherein the top surface of the tubular member comprises a slot that extends the entire length of the tubular member, wherein the tubular member has is top end and a bottom end, wherein the tubular member is open at the top end and at the bottom end, wherein the slot is offset from a center of the tubular member so that it is closer to the first side edge of the tubular member than to a second side edge of the tubular member, wherein the tubular member comprises a first side, wherein the base plate comprises a longitudinal axis, and wherein the first side of the tubular member is aligned with the longitudinal ...

Device for cutting a workpiece along a cutting line

A device for cutting a workpiece along a cutting line between a first end point and a second end point including a saw head, comprising an advancing mechanism with a guide carriage and with an advancing motor. The saw head is arranged on the guide carriage movable along an advancing direction, including a sensor system with a sensor element for monitoring the saw head, the advancing mechanism or the work process, including a control unit with a control element to control the saw head, the advancing mechanism and the sensor system as well as an evaluation element to evaluate a measured quantity detected by the sensor system, including an operating device to operate the saw head and the advancing mechanism, and including a display. On the basis of the measured quantity, the control unit calculates the momentary work result which is shown on the display.

CUT-OFF SAW WITH A SPLASH GUARD

A power tool includes a housing (15), a trigger (50), a motor (1850, 62) supported within the housing (15), a saw blade (25) interconnected to the housing (15) by a support arm (20) and drivably coupled to the motor (1850, 62), a main handle (45) integrally formed with the housing (15), an auxiliary handle (55) coupled to the housing (15) and disposed between the saw blade (25) and the main handle (45), and a battery receptacle (80) defined by the housing (15) and positioned beneath the main handle (45). The battery receptacle (80) is configured to receive a battery pack (78) to supply electrical current to the motor (1850, 62). The power tool further includes a splash guard (84) integrally formed with the housing (15) and positioned between the battery receptacle (80) and the saw blade (25).

УСТРОЙСТВО ДЛЯ РАЗДЕЛЕНИЯ ЗАГОТОВКИ ВДОЛЬ ЛИНИИ РАЗДЕЛЕНИЯ

Изобретение относится к устройствам для разделения заготовок вдоль линии разделения. Устройство содержит пильную головку с приводным двигателем и полотном пилы, закрепленным на выполненной с возможностью поворота вокруг оси качания стойке пилы и выполненным с возможностью вращения вокруг оси вращения, устройство подачи с направляющими салазками и мотором подачи, при этом пильная головка размещена на направляющих салазках и выполнена с возможностью перемещения вдоль направляющей рейки, сенсорное устройство с датчиками угла наклона стойки пилы и перемещения пильной головки, контрольное устройство, пульт управления и индикаторное устройство. Изобретение направлено на создание устройства для разделения, которое упрощает оператору контроль процесса обработки. 6 з.п. ф-лы, 3 ил.

СПОСОБ УПРАВЛЕНИЯ СИСТЕМОЙ УСТРОЙСТВ ПРИ РАЗДЕЛЕНИИ ЗАГОТОВКИ ВДОЛЬ ЛИНИИ РАЗДЕЛЕНИЯ

Изобретение относится к области получения разреза в заготовке. Технический результат – повышение точности реза. Способ управления системой устройств (10) при разделении заготовки (18) вдоль линии разделения (43) осуществляют до первой конечной точки (Е). Разделение заготовки (18) осуществляют пильной головкой (12), которую передвигают по направляющей рейке (11) вдоль направления подачи (26). Причем пильную головку (12) размещают на направляющей рейке (11) в стартовом положении (Х) и задают первую часть длины (L) от стартового положения (Х) до первой конечной точки (Е) линии разделения (43). 2 н. и 4 з.п. ф-лы, 3 ил.

Method and device for sawing out substantially circular discs from substantially plate-shaped material

A method and device are used to saw out substantially circular discs (21) from substantially plate-shaped material (20). For this purpose, use is made of a saw blade (51) which performs a reciprocating movement. The saw blade (51) is guided from a point (26) at the circumference of the substantially circular circumferential line (22) of the disc (21) along the circumferential line (22). In this process, the saw blade (51) is operated with stationary reciprocating axis (54). The material (20) is first displaced linearly (46) at right angles to the reciprocating axis (54) in such a way that a saw cut (24) is guided from one edge (23) of the material (20) substantially along a tangent (25) to the circumferential line (22) as far as a point (26) of contact of the tangent (25) on the circumferential line (22). The material (20) is then rotated (28) only about one axis (29) lying parallel to the reciprocating axis (54) and running through the centre of the circumferential line (22). For this ...

Guiding System for Power Tools

A power tool, particularly in the form of a keyhole saw as a hand-held power tool includes a work tool. A working line to be followed by the work tool with respect to the workpiece is optically provided by the power tool without contact being involved.

Dust management system in a table saw

A table saw is disclosed. The table saw includes a table top which includes an opening configured to receive a saw blade, and a motor positioned under the table top and configured to rotate the saw blade about an axis of rotation, wherein a midline that defines a front portion and a rear portion of the saw blade extends through the saw blade at the axis of rotation and is perpendicular with respect to the table top when the saw blade is perpendicular with respect to the table, a blade case positioned under the table top, the blade case including a blade chamber defined by a first wall on one side of the blade, a second wall on an opposite side of the blade, and a third wall along an outer perimeter of the blade chamber, and at least one dust deflector positioned within the blade chamber between the axis of rotation and the third wall of the blade chamber, the at least one dust deflector extending through the midline.

Health and safety system for a table saw

An improved health and safety system for a table saw includes one or more of: a blade guard that protects the operator from the saw blade, and contains and collects sawdust; a proximity detector and emergency saw motor braking means for use in connection with such blade guard; an anti-kickback device for use in connection with such blade guard, a rip fence adapter for use in connection with such a blade guard, and hoses and fittings to connect the dust containment and collection system of said blade guard to a shop dust collection blower or vacuum system. The system protects the saw operator from potential traumatic injury to a hand, and from ingesting potentially carcinogenic sawdust.

Detection systems for power equipment

Methods to detect when a human body contacts a predetermined portion of a machine are disclosed. The methods distinguish contact with a person from contact with other materials. The methods are particularly applicable in woodworking equipment such as power saws to detect contact between a person and the blade of the saw. Woodworking machines and memory devices for use in woodworking machines having safety systems designed to detect a dangerous condition between a human and a dangerous portion of the woodworking machine and to trigger some action to mitigate the dangerous condition are also disclosed.

System and method for capturing resultant dust from power tool operation

A system and method for capturing resultant dust from power tool operation are disclosed. The system comprises a device that includes a housing with a substantially cylindrical shape. The housing has a first end that tapers to an opening for a tool bit and at least one suction port that opens into an interior volume of the housing. The housing has a second end configured to couple to a power tool. An air intake passage attaches to the exterior surface of the housing body such that an interior volume of the air intake passage connects to an interior volume of the housing. An exit passage is coupled to the air intake passage and is configured to couple to a vacuum.

Saw Assembly with Pivot Hinge Dust Port

A saw assembly includes a drive member, a motor, a housing, and a foot. The drive member is configured to be moved in a repeating pattern. The motor is configured to move the drive member in the repeating pattern. The housing defines an interior space in which the motor is positioned. The foot includes (i) a base having an upper surface and a lower work piece contact surface, and (ii) a conduit structure secured to the upper surface of the base. The housing is pivotably mounted to the conduit structure.

Table saw dust extraction assembly

A power tool includes a table structure defining a blade slot, a blade positioned within the blade slot, a motor assembly to rotate the blade, and a dust chute assembly. The dust chute assembly surrounds at least a portion of the blade and includes a plenum for receiving airflow scavenged from operation of the motor assembly and redirects the airflow to convey dust and debris from operation of the blade to a discharge outlet.

CUTTER WITH LASER GENERATOR THAT IRRADIATES CUTTING POSITION ON WORKPIECE TO FACILITATE ALIGNMENT OF BLADE WITH CUTTING POSITION

A cutter including a base, a holder, a cutter blade portion, and a laser generator. The holder is supported on the base portion in an upright posture. The cutter blade portion supports a moving blade. The cutter blade portion is supported on the holder movable between an upper position and a lower position. The cutter blade portion is moved into the lower position to cut a workpiece supported on the base using the moving blade. The laser generator is attached to the holder or the cutter blade portion in an orientation to direct at least a portion of the laser light onto a position on the workpiece that is directly beneath the cutter blade portion when the cutter blade portion is in the upper position. 12-. (canceled)3. A cutter comprising:a base portion supporting a workpiece;a holder portion supported on the base portion;a cutter blade portion adapted for supporting a cutting blade that cuts the workpiece, the cutter blade portion being supported on the holder portion so as to be pivotally movable between an upper position and a lower position, the cutter blade portion being closer to the base portion in the lower position than in the upper position, the cutter blade portion including a saw cover which covers approximately an upper half of the cutting blade; anda laser generator, said laser generator including a light emitting portion emitting a laser light,wherein the laser generator is provided on one of the holder portion and the cutter blade portion at a position higher than a surface of the base portion and lower than a predetermined position so that the laser light is capable of being formed between a lower edge of the cutting blade and the base portion when the cutter blade portion is at the upper position, andwherein a part of the saw cover is positioned between the cutting blade and the laser generator.4. The cutter as claimed in claim 3 , wherein the laser generator is attached to the holder portion.5. The cutter as claimed in claim 3 , wherein the laser ...

Arrangement for the lubrication of saw chains

The purpose of the invention is an arrangement for the lubrication of saw chains, which comprises a grease tank ( 3 ) and apparatus for feeding grease via piping ( 4 ) to a saw chain. The apparatus for feeding grease to the saw chain ( 2 ) comprise a hydraulic device ( 3, 5, 6, 7 ), which is adapted to be powered by a hydraulic system ( 8, 9 ).

Dust Collection Assembly and a Tensioning System for a Saw

A saw ( 100 ) includes a sawdust collection assembly ( 2 ) having a chute ( 10 ) made of a material having a stretchability to be shaped responsive to movement of a blade housing ( 102 ) into a moveable sawdust path. An upper end ( 40 ) of a top portion ( 6 ) of the chute ( 10 ) is removably and reattachably engaged with a top attachment member ( 36 ) mounted to the blade housing ( 102 ). A bottom portion ( 8 ) of the chute ( 10 ) is removably and reattachably engaged with a bottom attachment member ( 26 ) mounted to a rear side ( 106 C) of a fence ( 106 ) of the saw ( 100 ). Two side edges ( 44, 46 ) of the top portion ( 6 ) are respectively attached by two side tension cords ( 18 ) to left and right sides ( 106 B, 106 A) of the fence ( 106 ). One of the side tension cords ( 18 ) can be used with a tension block ( 20, 28 ) to form a tensioning system.

CUTTING INDICATOR FOR CIRCULAR SAW

A cutting indicator includes an adjusting base pivotally mounted to a saw arm of a circular saw, a lens mounted in the saw arm, and a laser generator mounted on the adjusting base. When a laser beam generated by the laser generator passes through the lens, the laser beam is converted to a laser plane that forms a laser indicating line on the workpiece to be cut by the circular saw. Adjusting the adjusting base causes the plane beam to be quickly switched between a predetermined first plane position and a predetermined second plane position that are aligned substantially parallel to two opposing lateral planes of the circular saw blade. Thus, quick adjustment of the laser indicating line can be easily achieved. 1. A cutting indicator used in a circular saw comprising a worktable , a saw arm pivotally mounted at said worktable and a circular saw blade pivotally mounted to said saw arm and defining two opposing lateral planes , the cutting indicator comprising:an adjusting base pivotally connected to said saw arm;a lens mounted in said saw arm corresponding to said adjusting base; anda laser generator arranged in said adjusting base corresponding to said lens and adapted to generate a laser beam through said lens to form a plane beam on said worktable, said plane beam switchable between a predetermined first plane position and a predetermined second plane position subject to pivoting of said adjusting base relative to said saw arm, said predetermined first and second plane positions aligned substantially parallel to said two lateral planes of said circular saw blade.2. The cutting indicator as claimed in claim 1 , wherein said saw arm comprises two stop walls claim 1 , and said adjusting base is equipped with two locating members bilaterally inserted through said adjusting base such that one of said locating members is configured to stop against one of said stop walls to hold said adjusting base in a predetermined angular position.3. The cutting indicator as claimed in ...

SAWING MACHINE AND CUTTING METHOD OF A SAWING MACHINE

Traditionally, in order to avoid interfering with a work-piece such as a round material and an hexagonal material etc., an insert plate used as a saw blade side support of a band saw machine or a circular saw machine is provided at a position apart from the cutting site after passing the maximum cutting width, which results in the bending, vibration and noise of the saw blade, thereby decreasing the life of the saw blade. This problem is solved with two insert plates located at two positions on left and right of a work-piece to support the saw blade in a manner of moving them closing to the work-piece along the external shape of the work-piece from the cutting start and after passing the maximum cutting width by enabling them to move along the external side of the work-piece, therefore, one side of the insert plates takes a tapered shape so as to get into under the work-piece. 1. Sawing machine for cutting a work-piece with a saw blade , comprising:a saw blade supporting device;a pair of saw blade side supports for supporting the saw blade from both sides;a moving unit for moving the saw blade side supports along the external side of the work-piece and in the direction orthogonal to cutting direction of the work-piece,wherein each of the saw blade side supports is supported on the end portion of a guide arm in a manner of projecting toward the work-piece;a sensor for detecting the external shape of the work-piece and/or a storage device for storing the external shape of the work-piece; andthe moving unit is controlled based on the detected result from the sensor or the external shape data in the storage device.2. Sawing machine according to claim 1 , wherein the saw blade side supports take a shape of tapered inclined surface so that an end portion toward the work-piece can be located within the maximum cutting width of the work-piece between the position of the saw blade passing the maximum cutting width of the work-piece and a position of a cutting end.3. Sawing ...

SAW BLADE, A SAWING MACHINE AND A SYSTEM THEREOF

The present invention relates to a saw blade for a sawing machine, said sawing machine () being arranged for cutting micro trenches by means of said saw blade (), wherein said micro trenches are adapted for receiving at least one duct/cable; wherein said saw blade comprises mechanical coding means () selected from the group consisting of holes, depressions and protrusions arranged on said saw blade (); and said holes, depressions and protrusions being coding elements for forming at least one code symbol () representing a unique identity (ID) for said saw blade. 1101. A saw blade for a sawing machine , said sawing machine () being arranged for cutting trenches by means of said saw blade () , wherein said trenches are adapted for receiving at least one duct/cable; characterised in that{'b': 2', '1, 'said saw blade comprises mechanical coding means () selected from the group consisting of holes, depressions and protrusions arranged on said saw blade (); and'}{'b': '4', 'said holes, depressions and protrusions being coding elements for forming at least one code symbol () representing a unique identity (ID) for said saw blade.'}23. Saw blade according to claim 1 , further comprising coding elements in the form of electro magnetic coding means ().33. Saw blade according to claim 2 , wherein said electro magnetic coding means () are comprised in a RFID device.4. Saw blade according to claim 1 , wherein a depth or a height or a spatial location or a size of said holes claim 1 , depressions and protaisions distinguishes different coding elements from each other.5410. Saw blade according to claim 1 , wherein said at least one code symbol () further function as an immobilizer for said sawing machine ().61110. Saw blade according to claim 1 , further comprising first attachment means (A) for attaching said saw blade () to said sawing machine ().7231. Saw blade according to claim 6 , wherein said mechanical coding means () and said electro magnetic coding means () are arranged ...

JIGSAW

A jigsaw includes a housing, a motor, a blade, a roller holder and a dust collection passage. The housing accommodates the motor. The blade driven by a motor protrudes downward from a front part of the housing and moves in a reciprocating manner to cut a workpiece. The roller holder is pivotally arranged under the housing and holds a roller that is arranged between a pair of side walls facing each other. The roller abuts on a rear part of the blade. The dust collection passage formed through the housing has a dust collection port that opens behind the roller holder. The jigsaw further includes a dust collection nozzle that has a vertically long opening formed on a front face and a rear face thereof respectively, the opening on the front face being connected to the dust collection port. 1. A jigsaw comprising:a housing;a motor that is accommodated in the housing;a cutting blade that is driven by the motor, protrudes downward from a front part of the housing, and moves in a reciprocating manner so as to cut a workpiece;a roller holder that is pivotally arranged, under the housing, and holds a roller which abuts on a rear part of the cutting blade and is arranged between a pair of side walls facing each other; and.a dust collection passage that is formed on the housing, and has a dust collection port that opens behind the roller holder, whereinthe roller holder supports a dust collection nozzle that has a vertically long opening formed on a front face and a rear face thereof respectively, the opening on the rear face being connected to the dust collection port.2. The jigsaw according to claim 1 , wherein the dust collection nozzle is arranged between the pair of the side walls.3. The jigsaw according to claim 1 , wherein the dust collection nozzle is provided continuously with the pair of the side walls.4. The jigsaw according to claim 2 , wherein the pair of the side walls are pivotally arranged under the housing by a pin claim 2 , andthe dust collection nozzle is ...

DEPTH STOP FOR AN OSCILLATING TOOL

The description shows a depth stop for an oscillating tool wherein a saw blade for machining of a worlcpieee is mountable to the tool wherein the depth stop has a spacer for adjusting a penetration depth of the saw blade into the workpiece, a fixture device on which the spacer () is fixable and a mounting member to which the fixture device is mountable, wherein the mounting member is firmly attachable or firmly attached to the tool wherein in a first state the mounting member is immovable relative to the fixture device and wherein in a second state the mounting member is rotatable or movable relative to the fixture device at least around or along an axis of motion 21692222235. The depth stop () according to claim 1 , wherein the fixture device () has a first annular section () with a first axis of rotation claim 1 , wherein the first annular section () is configured to coact with a second annular section () of the mounting member () with a second axis of rotation.35921. The depth stop according to claim 2 , wherein in the second state the mounting member () is rotatable around the fixture device () claim 2 , wherein the axis of motion () corresponds to the first and the second axis of rotation.4162223. The depth stop () according to claim 2 , wherein in the first state the first annular section () is tensioned with the second annular section ().51632731832831832728. The depth stop () according to claim 1 , wherein the spacer comprises a support surface () claim 1 , wherein the support surface has a first width distance () along the width of the support surface () originating at the longitudinal axis () towards an end of the supporting surface () and a second width distance () along the width of the supporting surface () originating at the longitudinal axis () towards the opposite end of the supporting surface () claim 1 , wherein the first width distance () is different from the second width distance ().6. An oscillating tool comprising a depth stop according to .8. ...

Seal for a Sawing Machine for Separating Electronic Components and Sawing Machine Provided with Such a Seal

The invention relates to a seal for a sawing machine () for separating electronic components (), comprising: an elongate form-retaining holder (), a flexible, elongate expandable body ()and a pressure source () for a medium, wherein the elongate expandable body () is provided with a strengthened elongate edge () which lies clear of the form-retaining holder () The invention also relates to a sawing machine () for separating electronic components () provided with such a seal. 1. A seal for a sawing machine for separating electronic components , comprising:an elongate form-retaining holder, a flexible, elongate expandable body connected to the form-retaining holder and sealing a space medium-tightly,a pressure source for a medium connecting to the space sealed by the flexible expandable body,wherein the elongate expandable body is provided with a strengthened elongate edge which lies clear of the form-retaining holder.2. The seal as claimed in claim 1 , wherein the seal takes a dual form such that it comprises two opposite flexible claim 1 , elongate expandable bodies which are supported by two elongate claim 1 , form-retaining holders which are placed at a mutual distance such that the strengthened elongate edges of the flexible claim 1 , elongate expandable bodies connect to each other in an expanded state.3. The seal as claimed in claim 1 , wherein the elongate claim 1 , form-retaining holder is a profile part.4. The seal as claimed in claim 1 , wherein the strengthened elongate edge protrudes from the elongate expandable body.5. The seal as claimed in claim 4 , wherein a cross-section through the strengthened elongate edge perpendicularly of the longitudinal on the side directed toward the flexible part of the elongate expandable body has a substantially rounded form.6. The seal as claimed in claim 1 , wherein the elongate expandable body is manufactured from an elastomer such as TSE or from a (natural) rubber.7. The seal as claimed in claim 1 , characterized in ...

Saw

A saw includes a base assembly, a circular table rotatably mounted on the base assembly, a bevel mount pivotally mounted on the rear of the circular table, and a saw assembly slideably and pivotally mounted on the bevel mount. The saw assembly includes a motor, a cutting blade driven by the motor, a fixed guard mounted on the saw assembly surrounding at least part of the top half of the periphery of the cutting blade, and a dust tube mounted on the fixed guard. A dust chute is mounted on the bevel mount for directing the flow of dust and debris generated by the cutting action of the blade into the fixed guard when the saw assembly is located in its closest position to the bevel mount.

Saw Base for Providing Straight And Bevel Cuts Having A Common Cut Line

A saw base assembly for use with a saw support apparatus. The saw base assembly allows for any power tool, cutting device, drill, and associated bits of various sizes to be utilized to make straight and bevel saw cuts having a common cut line. The saw base assembly includes a first guide rail and a second guide rail, a fixed plate coupled to the first and second guide rails, a moveable plate coupled to the first and second guide rails, a means for securing the fixed plate and the moveable plate to the guide rails, and a means for securing the saw base assembly to the saw support apparatus. 1. A saw base assembly for use with a saw support apparatus , the saw base assembly comprising:a first guide rail and a second guide rail;a fixed plate coupled to the first and second guide rails;a moveable plate coupled to the first and second guide rails;means for securing the fixed plate and the moveable plate to the guide rails; andmeans for securing the saw base assembly to the saw support apparatus.2. A saw base assembly comprising:a pair of fixed plates; anda moveable plate, the moveable plate is detachably securable to the pair of fixed plates, the moveable plate supports a power tool base, the tool base supporting a power tool.3. The saw base assembly of claim 2 , wherein the pair of fixed plates is spatially oriented claim 2 , the moveable plate being detachably secured between the pair of fixed plates.4. The saw base assembly of claim 2 , wherein the pair of fixed plates being detachably coupled to a UEG via suitable fasteners or retaining mechanisms.5. The saw base assembly of claim 3 , wherein the moveable plate is slidably adjustable.6. The saw base assembly of claim 5 , wherein the moveable plate slidably translates about the pair of fixed plates.7. The saw base assembly of claim 2 , wherein the moveable plate having the power tool base detachably coupled thereto via suitable fasteners or retaining mechanisms.8. The saw base assembly of claim 2 , wherein the ...

CONTROL CIRCUIT FOR RECIPROCATING SAWS

A reciprocating saw with a control system, which includes a rotational rate sensor having a resonating mass and a controller electrically connected to the rotational rate sensor. The rotational rate sensor detects angular or lateral displacement of the resonating mass and generates a signal indicative of the detected angular or lateral displacement, such that angular or lateral displacement is directly proportional to a rotational speed at which the power tool rotates about an axis. Based on the generated signal, the controller initiates a protective operation to avoid undesirable rotation of the power tool. 1. A reciprocating saw comprising:a housing having a front end and a back end;a handle disposed on the back end of the housing;a motor disposed in the housing;a spindle reciprocatably mounted within the front end of the housing;a drive assembly connected to the spindle and the motor, the drive assembly being operable to reciprocate the spindle; anda control system for controlling the motor, the control system having a rotational rate sensor for sensing the rotational speed of the front end of the housing relative to the handle,wherein the control system lowers the speed of the motor if the rotational speed exceeds a first predetermined threshold.2. The reciprocating saw of claim 1 , wherein the rotational rate sensor comprises at least one of the group consisting of an accelerometer and a gyroscope.3. The reciprocating saw of claim 1 , wherein the speed of the motor is lowered by shutting off power to the motor.4. The reciprocating saw of claim 1 , wherein the speed of the motor is lowered by pulsing power to the motor.5. The reciprocating saw of claim 1 , wherein the control system further comprises a current sensor.6. The reciprocating saw of claim 1 , wherein the control system disconnects the motor if the rotational speed exceeds a second predetermined threshold.7. The reciprocating saw of claim 1 , wherein the control system raises the speed of the motor ...

Power Tool With Circuit For Sensing Contact Between An Implement And An Object

A power tool includes a sensing circuit mounted on a printed circuit card is electrically connected to a switching power supply that supplies electrical power to the sensing circuit. The sensing circuit is not connected to earth ground to enable detection of an operator approaching a moving implement without the operator necessarily being electrically connected to earth ground. 1. A power tool that moves an implement comprising:a terminal configured to receive an alternating current (AC) from an AC current source, which is electrically connected to earth ground;an implement configured for movement;an actuator operatively connected to the implement and electrically connected to the terminal to enable the actuator to operate and move the implement; anda printed circuit card to which a sensing circuit and a switching power supply are mounted, the switching power supply being electrically connected to the terminal to receive the AC current and being configured to generate electrical power for distribution to components on the printed circuit card, and the sensing circuit being electrically connected to the switching power supply to receive the electrical power and being configured to generate a sensing current that is electrically coupled to the implement, the printed circuit card being electrically connected to signal ground, but not electrically connected to earth ground to enable the sensing circuit to detect discharge of the sensing current to an object by the implement.2. The power tool of claim 1 , further comprising:a plate that is electrically connected to the sensing circuit and positioned proximate to the implement without touching the implement to enable the sensing current to be capacitively coupled to the implement.3. The power tool of claim 2 , the sensing circuit further comprising:a transformer having a primary winding and a secondary winding, the primary winding being electrically connected between the plate and a sensing current generator, and the ...

Tool for Assisting the Process of Marking or Cutting

A tool for assisting the process of marking or cutting structures in a predefined manner is disclosed. The tool comprises a rod member having a longitudinal axis and a plate member rotatably attached to the rod member. The tool comprises an arm removably attached to the rod member and to the plate member. The plate member is rotatably attached to the rod member by means of a structure comprising a joint and one or more magnetic or magnetizable structures configured to provide a magnetic force between the rod member and the plate member. 1. A tool for assisting the process of marking or cutting structures in a predefined manner , wherein the tool comprises:a rod member having a longitudinal axis;a plate member rotatably attached to the rod member by a pivot joint comprising a cylindrical pin attached to the rod member that is inserted into a bore of the plate member, wherein the cylindrical pin is at least partly surrounded by a plane structure made of a magnetic or magnetizable material and a receiving portion of the plate member is arranged and configured to be brought into contact with the plane structure, the plane structure and the receiving portion being made of materials ensuring that the plane structure and the receiving portion are attracted to each other by magnetic attraction;wherein the bore is arranged along a longitudinal axis of the plate member and additional holes are arranged symmetrically with respect to the longitudinal axis of the plate member;at least one of the additional holes configured to mate with an arm that is removably attached to the rod member and to the plate member; andone or more magnetic or magnetizable structures configured to provide a magnetic force between the arm and the plate member.2. The tool of further comprising a setting device removably attached to the rod member.3. The tool of claim 2 , wherein the setting device comprises a fixation member moveably attached to the setting device.4. The tool of further comprising an ...

SHIELDING DEVICE FOR A SAW, IN PARTICULAR A TABLE SAW, AND SAW EQUIPPED WITH SUCH A SHIELDING DEVICE, IN PARTICULAR A TABLE SAW

The invention is concerned with a shielding device () for shielding a saw blade () or band of a sawing machine against access by an operator and against ejection of workpiece parts, which can be attached to the sawing machine in such a way that, in a working position, it covers the saw blade () or band towards the operator. The shielding device () comprises a temperature monitoring unit () which has a temperature sensor (). 1133124. A shielding device () for shielding a saw blade () or band of a sawing machine against access by an operator and against ejection of workpiece parts , which can be attached to the sawing machine in such a way that , in a working position , it covers the saw blade () or band towards the operator , the shielding device () comprising a temperature monitoring unit () which has a temperature sensor () , wherein{'b': 4', '1', '3', '5', '4', '3, 'the temperature sensor () operates without contact and, with the shielding device () mounted on the sawing machine and located in the working position, is directed towards the toothing of the saw blade () or band, and a display device () displays the surface temperature detected by the temperature sensor () on the surface of the toothing of the saw blade (), wherein'}{'b': 2', '1, 'the temperature monitoring unit () is formed as an autarkic operating unit and is mounted on the shielding device () such that it is detachable by an operator without tools.'}2111. The shielding device () according to claim 1 , wherein the shielding device () is formed as a saw blade guard () mountable above a table of a circular table saw.31286. The shielding device () according to claim 1 , wherein the temperature monitoring unit () is battery or accumulator-operated and comprises a battery compartment claim 1 , which is preferably accessible via a removable cover () claim 1 , for accommodating batteries () or accumulators.412. The shielding device () according to claim 3 , wherein the temperature monitoring unit () has an ...

SAMPLE PREPARATION SAW

A saw has a system for sensing the torque on a cutting blade to signal when the blade begins to cut material. The saw has a drive belt extending between a driven wheel and a drive wheel and a belt tensioner that engages a side of the belt and maintains tension in the belt. The belt tensioner is movable to maintain the tension in the belt. A control system calculates the movement of the belt tensioner. The saw has a system for determining the size of the sacrificial blade. A through beam photoelectric emitter and receiver pair are positioned on opposite sides of the blade such that a largest cutting blade is moved above the beam regardless of a horizontal position of the cutting blade and sensor senses a vertical position of the axis of the blade. The sensor senses the vertical position of the blade axis when the blade is moved above the beam. 116-. (canceled)17. A material removal system , comprising:a material removal tool;a drive assembly configured to move the material removal tool towards or away from a sample; anda control system configured to adjust movement of the material removal machine via the drive assembly based on whether the material removal tool is in contact with the sample.18. The system of claim 17 , wherein the control system is configured to move the material removal tool via the drive assembly in a first mode when the material removal tool is not in contact with the sample and in a second mode when the material removal tool is in contact with the sample.19. The system of claim 18 , wherein the control system is configured to move the material removal tool via the drive assembly at a first speed when the material removal tool is not in contact with the sample and at a second speed when the material removal tool is in contact with the sample.20. The system of claim 19 , wherein the first speed is greater than the second speed.21. The system of claim 17 , wherein the control system is configured to determine whether the material removal tool is in ...

POWER TOOL, SYSTEM, AND METHOD

A power tool with a rotatable tool designed as a saw blade or a milling cutter, including a sensor device for detecting a mechanical quantity, the mechanical quantity having a force, an acceleration, a velocity, a deflection, a deformation and/or a mechanical stress, and the mechanical quantity being dependent on a force emanating from the tool, and a control device communicatively coupled to the sensor device, which control device is adapted to recognize a kickback event based on the detected mechanical quantity, where the control device is adapted to selectively determine a first recognition function or a second recognition function different from the first recognition function based on a function determination information, and to perform the recognition of the kickback event based on the detected mechanical quantity using the determined recognition function. 1. A power tool with a rotatable tool designed as a saw blade or a milling cutter , comprising:a sensor device for detecting a mechanical quantity, the mechanical quantity comprising a force, an acceleration, a velocity, a deflection, a deformation and/or a mechanical stress, and the mechanical quantity being dependent on a force emanating from the tool, anda control device communicatively coupled to the sensor device, which control device is adapted to recognize a kickback event based on the detected mechanical quantity,wherein the control device is adapted to selectively determine, based on a function determination information, a first recognition function or a second recognition function different from the first recognition function, and to perform the recognition of the kickback event based on the detected mechanical quantity using the determined recognition function.2. The power tool according to claim 1 , wherein the power tool has a communication interface for communication with an external device claim 1 , wherein the control device is adapted to receive the function determination information via the ...

POWER TOOL, SYSTEM, AND METHOD

A power tool with a rotatable tool designed as a saw blade or a milling cutter, including a sensor device for detecting a mechanical quantity, the mechanical quantity having a force, an acceleration, a velocity, a deflection, a deformation and/or a mechanical stress, and the mechanical quantity being dependent on a force emanating from the tool, and a control device communicatively coupled to the sensor device, which control device is adapted to recognize a kickback event based on the detected mechanical quantity, where the control device is adapted to selectively determine a first recognition function or a second recognition function different from the first recognition function based on a function determination information, and to perform the recognition of the kickback event based on the detected mechanical quantity using the determined recognition function. 1. A power tool with a rotatable tool designed as a saw blade or a milling cutter , comprising:a sensor device for detecting a mechanical quantity, the mechanical quantity comprising a force, an acceleration, a velocity, a deflection, a deformation and/or a mechanical stress, and the mechanical quantity being dependent on a force emanating from the tool, anda control device communicatively coupled to the sensor device, which control device is adapted to recognize a kickback event based on the detected mechanical quantity,wherein the control device is adapted to selectively determine, based on a function determination information, a first recognition function or a second recognition function different from the first recognition function, and to perform the recognition of the kickback event based on the detected mechanical quantity using the determined recognition function.2. The power tool according to claim 1 , wherein the power tool comprises a positioning device adapted to selectively position the tool in an operating position or a safety position and the control device is adapted to control the positioning ...

MITER SAW SAFETY DEVICE

A safety system with a number of component devices that may be used alone or in combination to substantially reduce the risk of injury to the operator of the power cutting tool. The devices are designed for use with table saws, miter saws, jointers, routers, shapers and similar equipment. The devices secure a work piece against unanticipated movement and kickback while simultaneously protecting the operator's hands. The devices further enhance the capabilities of power equipment to make precise cuts safer, faster and easier. According to aspects of the present disclosure, one such device includes a guide member for engaging a work piece and an adjustable alignment member for orienting the position of the guide member relative to a cutting blade. 1. A safety device for use with a miter saw to hold a work piece during a cutting operation , comprising:a. a body having a first end and a second end, and an upper surface and a lower surface;b. a safety wall extending from the upper surface of the body and disposed proximate the second end;c. a guide member extending from the lower surface of the body, the guide member disposed proximate the second end and having a first surface configured to engage a work piece; andd. an alignment plate positionable relative to the body, the alignment plate having a first edge configured to abut a guide rail associated with the miter saw, wherein repositioning the first edge of the alignment plate relative to the body repositions the first surface of the guide member.2. The safety device of claim 1 , wherein the body comprises a positioning arm at the first end of the body and an aperture is disposed in the positioning arm.3. The safety device of claim 2 , wherein the aperture comprises an elongate slot extending along a length of the positioning arm.4. The safety device of claim 1 , wherein a portion of the lower surface of the body proximate the second end of the body is configured to engage a work piece.5. The safety device of claim 4 ...

Method for Assisting During Execution of a Sequence of Cuttings in a Tree, and System for Assisting During Execution of a Sequence of Cuttings in a Tree

A method assists during execution of a sequence of cuttings in a tree, wherein, during a cutting sequence, a first cut in the tree is followed by a second cut in the tree At least a part of an ideal course of the second cut depends on at least a part of a course of the first cut. The method includes the steps of: identifying at least the part of the course of the first cut in the tree; precalculating at least the part of the ideal course of the second cut in the tree based on the identified part of the course of the first cut; and outputting cutting information for executing the second cut based on the precalculated part of the ideal course of the second cut.

Device and method for cutting a frozen food strand into slices

A device for cutting a frozen food strand into slices including a machine frame; a cutting device with a cutting tool configured as a circular saw blade supported in the machine frame, wherein the cutting tool is rotatable about its center axis and moveable in a cutting plane defined by the circular saw blade; and a feed portion for the food product to be cut from which feed portion the food product is moveable towards the cutting device so that successive slices are cutable from the food product wherein the food product is moveable in the feed portion into a feed direction which extends perpendicular to the cutting plane, wherein the circular saw blade is supported drivable in rotation at an arm that is supported in or at the machine frame, and wherein the circular saw blade continuously rotates with the arm about a rotation axis of the arm.

SUBSTRATE CUTTING DEVICE AND SUBSTRATE CUTTING METHOD

A substrate cutting device includes: a first cutter including a plurality of first rotary blades; a second cutter including a plurality of second rotary blades; a first rotation drive unit for rotationally driving the first cutter; a second rotation drive unit for rotationally driving the second cutter; a cutter support unit; and a phase adjustment unit. The cutter support unit supports the first cutter and the second cutter such that the first and second cutters are radially opposed to each other so that rotation axes thereof are parallel to each other. The phase adjustment unit adjusts a phase of at least one of the first cutter and the second cutter such that each of the second rotary blades is located between two adjacent first rotary blades in an opposing area in which the first cutter and the second cutter are opposed to each other. 1. A substrate cutting device for cutting a substrate from one surface and the other surface of the substrate , the substrate cutting device comprising:a first cutter for cutting the substrate from the one surface, the first cutter including a plurality of first rotary blades;a second cutter for cutting the substrate from the other surface, the second cutter including a plurality of second rotary blades;a first rotation drive unit for rotationally driving the first cutter;a second rotation drive unit for rotationally driving the second cutter;a cutter support unit for supporting the first cutter and the second cutter in such a manner that the first cutter and the second cutter are radially opposed to each other so that rotation axes of the first cutter and the second cutter are parallel to each other; anda phase adjustment unit for adjusting a phase of at least one of the first cutter and the second cutter in such a manner that each of the second rotary blades is located between two adjacent first rotary blades in an opposing area in which the first cutter and the second cutter are opposed to each other.2. The substrate cutting ...

Machine control and data logging station

A machine control and data logging station, intended for use with a saw or other machine tool, features a processor which monitors a number of input lines, a real time clock and time stamp function. Any change of input signals from the machine tool will be recorded in flash memory. Both wired and wireless outputs may read the memory at any given time. Optionally, hardware or software data communication encryption may be employed to provide increased confidentiality and security. The station continually monitors sensor inputs and can react automatically to emergency-stop the machine tool upon sensing a dangerous condition.

Workpiece Material Detector for a Power Tool

An improvement for a power tool having a motor-driven working tool for performing an operation on a workpiece includes a material sensor positioned to sense the workpiece prior to operation by the working tool. The material sensor is configured to determine a material property of the workpiece and to generate a signal in response thereto. A processor coupled between the material sensor and the motor is configured to control the motor in response to the signal generated by the material sensor. 1. In a power tool having a working tool for performing an operation on a workpiece , the working tool driven by a motor , the improvement comprising:a material sensor positioned to sense the workpiece prior to operation by the working tool, the material sensor configured to determine a material property of the workpiece and to generate a signal in response thereto; anda processor coupled between said material sensor and the motor and configured to control the motor in response to said signal generated by said material sensor.2. The improvement of claim 1 , wherein the material sensor includes one or more of a sensor configured to sense a metallic material and a sensor configured to sense a non-metallic material.3. The improvement of claim 2 , wherein the sensor configured to sense a non-metallic material is configured to sense a wood material.4. The improvement of claim 3 , wherein the sensor configured to sense a non-metallic material is configured to sense the density of the wood material.5. The improvement of claim 3 , wherein the sensor configured to sense a wood material is an acoustic sensor.6. The improvement of claim 2 , wherein the sensor configured to sense a metallic material is a capacitive or magnetic sensor.7. The improvement of claim 1 , wherein the processor is configured to control activation of the motor in response to said signal.8. The improvement of claim 1 , wherein the processor is configured to control the rotational speed of the motor in response to ...

Removable Dust Compartment for Power Tool

A removable dust compartment is configured for use with a power tool which includes a base assembly, a table top assembly supported by the base assembly, and an undercarriage frame positioned within the base assembly. The table top assembly includes a top surface with an opening configured to receive a blade. The undercarriage frame includes a support member. The power tool includes a removable compartment received within the base assembly and removably coupled to the support member. The removable compartment has a closed body portion configured to collect material and an open top portion configured to receive a portion of the blade extending below the table top assembly. The closed body portion includes a support member wall configured to be coupled to the support member. The support member wall includes an opening extending to the open top portion of the removable compartment.

A CUTTING APPARATUS

A cutting apparatus comprising a cutting tool and a collection assembly designed for diverting, collecting and disposing dust generated during the cutting process. The apparatus includes a cutting tool, a collection assembly together with an optional dust separator and/or collection container. The air stream generated around the blade of the cutting tool during operation diverts the generated dust particulates into the collection assembly of the cutting tool. The air stream can also transport the dust into the dust separator which transfers the dust into the collection container, when present. Optionally, the collection container further comprises an air filtration assembly for storing and disposing the dust.

SAFETY SYSTEMS FOR POWER EQUIPMENT

Machines with safety systems are disclosed. The machine may take the form of woodworking machines including table saws, band saws, miter saws, hand-held circular saws, pneumatic chop saws, radial-arm saws, jointers, planars, routers and shapers. The machines may include an operative structure configured to perform a task, where the operative structure includes a cutting tool adapted to move in at least one motion, and a safety system adapted to detect the occurrence of an unsafe condition between a person and the cutting tool and for mitigating the unsafe condition. The safety system may include a detection subsystem and a reaction subsystem. The machine may also include a bypass or override mode where in an injury mitigation system is disabled for certain cuts. 1. A machine comprising:a blade; andan injury mitigation system with a normal mode wherein the injury mitigation system is configured to take an action to mitigate injury in the event of contact between the user and the blade, and a bypass mode wherein the injury mitigation system is disabled and takes no action to mitigate injury in the event of contact between the user and the blade.2. The machine of claim 1 , where the action is to stop or retract the blade. This application is a continuation of U.S. patent application Ser. No. 15/670,374, filed Aug. 7, 2017, which is a continuation of U.S. patent application Ser. No. 10/100,211, filed Mar. 13, 2002, issuing as U.S. Pat. No. 9,724,840 on Aug. 8, 2017, which claims the benefit of and priority from U.S. Provisional Patent Application Ser. No. 60/275,583, filed Mar. 13, 2001, all of which are hereby incorporated by reference.This application hereby incorporates by reference the following U.S. patent application: Ser. No. 09/676,190, filed Sep. 29, 2000. This application also hereby incorporates by reference the following PCT patent application: PCT/US00/26812, filed Sep. 29, 2000. This application further incorporates by reference the following U.S. ...

CIRCULAR SAW WITH LIGHT EMITTING SYSTEM

A power tool includes a working element, a motor, a motor actuator, a housing, a light emitting element, a locking element, and a switch element positioned between the housing and the locking element. The housing supports the motor, the motor actuator, and the light emitting element and movably supports the locking element. The light emitting element illuminates a work area around the working element, and the motor drives the working element when actuated by the motor actuator. The locking element enables operation of the motor actuator when in an unlocked position and prevents operation of the motor actuator when in a locked position. When in the unlocked position, the locking element operates the switch element to activate the light emitting element. 117-. (canceled)18. A power tool , comprising:a working element;a motor drivingly coupled to the working element;a motor actuator configured to operate the motor;a housing configured to support the motor and motor actuator;a light emitting element supported by the housing and configured to illuminate a work area around the working element;a switch element operatively coupled to the light emitting element; anda locking element supported by the housing so as to be movable between a locked position and an unlocked position, the locking element configured to enable the motor actuator when positioned in the unlocked position and configured to disable the motor actuator when positioned in the locked position, the locking element further configured to operate the switch element when positioned in the unlocked position.19. The power tool of claim 18 , wherein:the switch element includes at least one switch; andthe switch element includes an actuation element associated with said locking element and movable to activate the at least one switch when the locking element is in the unlocked position.20. The power tool of claim 19 , wherein:the switch element further includes a printed circuit board electrically connected to the ...

Table Saw and Miter Saw Combination Apparatus

A table saw and miter saw combination apparatus for combining the functionalities of table saws and miter saws includes a table housing having a table blade slot extending through to a table inside. A table saw is coupled to the table housing within the table inside and has a table blade extending through the table blade slot. The table saw has a power switch coupled to the table front side. A miter housing is coupled to the table housing. The miter top side has a base cutout. A miter base is coupled to the miter housing being pivotably coupled within the base cutout. The miter base has a miter blade slot extending therethrough. A miter saw is coupled to the miter housing. The miter saw has a miter arm. The miter saw has a miter handle coupled the miter arm. The miter handle has a power trigger. 1. A table saw and miter saw combination apparatus comprising:a table housing, the table housing having a table front side separated from a table back side, a table left side separated from a table right side, and a table top side separated from a bottom side defining a table inside, the table top side having a table blade slot extending through to the table inside;a table saw coupled to the table housing, the table saw being coupled within the table inside and having a table blade extending through the table blade slot, the table saw having a power switch coupled to the table front side;a table fence coupled to the table housing, the table fence being slidably coupled to a table front edge and a table back edge of the table top side;a miter housing coupled to the table housing, the miter housing having an open miter front side, a miter back side, a miter left side, a miter right side, a miter top side, and a miter bottom side, the miter right side being coupled to the table left side, the miter top side having a base cutout;a miter base coupled to the miter housing, the miter base being pivotably coupled within the base cutout, the miter base having a miter blade slot ...

Cutting Device with On-Board Debris Collection Operable in a Plurality of Cut Angle Positions

A portable cutting device having a cutting tool for cutting a material. The cutting device includes a motor driving the cutting tool and a shroud at least partially enclosing the cutting tool. The shroud defines a debris accumulation chamber for gathering debris created by the cutting tool cutting the material. An impeller is operatively coupled to the motor and driven by the motor to create suction pressure to draw the debris out of the debris accumulation chamber and into a collection bag. 1. A cutting device comprising:a motor for driving a cutting blade to cut material;a shroud configured to at least partially enclose the cutting blade, said shroud defining a debris chamber into which material debris generated by the cutting blade during cutting is received;a source of vacuum in fluid communication with said debris chamber;a vacuum conduit defining a vacuum path extending between said debris chamber and said source of vacuum;a platform assembly coupled to said shroud and including an upper member defining an upper opening for receiving the cutting blade and a lower member defining a lower opening for receiving the cutting blade, said lower member pivotable between a plurality of cut angle positions in which a relative angle between said upper member and said lower member is varied; andan expandable portion positioned between said upper member and said lower member, said expandable portion being expandable in height to reduce air leakage into said upper opening as said lower member pivots relative to said upper member between said plurality of cut angle positions.2. The cutting device of wherein said platform assembly defines a gap that varies in height between said upper member and said lower member as said lower member pivots relative to said upper member between said plurality of cut angle positions claim 1 , said expandable portion being positioned in said gap.3. The cutting device of wherein said expandable portion is a bellows extending between said upper ...

BAND-SAW CLEANING MECHANISM FOR BAND SAW MACHINE

A band-saw cleaning mechanism includes a cleaning unit having a steel brush, a first motor having a driving shaft, and a linking rod connected between the steel brush the driving shaft; a torque sensor mounted to the driving shaft for sensing the torque of the driving shaft and for emitting a sensing signal; a regulation unit having a second motor and a regulation screw having two ends connected with the second motor and the linking rod, respectively; and the control unit connected with the torque sensor and the second motor for controllably making the second motor regulate the regulation screw for prolongation according to the sensing signal. While the regulation screw is prolonged, the linking rod can be pushed to change the contact distance between the steel brush and the band saw for proper contact therebetween. 1. A band-saw cleaning mechanism for a band saw machine , comprising:a cleaning unit having a steel brush, a first motor, and a linking rod, the steel brush being adapted for contact with a surface of the band saw, the first motor having a driving shaft, the linking rod having two ends, one of which is connected with the steel brush and the other is pivotably attached to the driving shaft of the first motor;a torque sensor mounted to the driving shaft of the first motor for sensing a torque of the driving shaft and emitting a sensing signal;a regulation unit having a second motor and a regulation screw, the regulation screw having two ends, one of which is connected with the second motor and the other is pivotably attached to the linking rod of the cleaning unit, whereby the regulation screw is driven by the second motor to push the linking rod for changing a contact distance between the steel brush and the band saw; anda control unit electrically connected with the torque sensor and the second motor of the regulation unit for receiving the sensing signal from the torque sensor and controlling the operation of the second motor according to the sensing ...

BAND SAW MACHINE CAPABLE OF AUTOMATICALLY REGULATING CUTTING SPEED

A band saw machine includes a chassis, a motor mounted to chassis, a driving wheel mounted to the chassis and connected with the motor, a driven wheel mounted to the chassis, a band saw running on the driving and driven wheels, a band-saw regulator mounted to the chassis and located between the driving and driven wheels, and a force sensor mounted inside the band-saw regulator for sensing how much a force is applied to the band-saw regulator in the process of cutting and for emitting a sensing signal to a control system. In this way, the control system can control the rotational speed of the motor according to the sensing signal received from the force sensor to automatically regulate the cutting speed. 1. A band saw machine capable of automatically regulating cutting speed , comprising:a chassis;a motor mounted to the chassis and having a driving shaft;a driving wheel rotatably mounted to the chassis and connected with the driving shaft of the motor for making the driving wheel be driven by the motor for rotation;a driven wheel rotatably mounted to the chassis relative to the driving wheel;a band saw running on the driving and driven wheels;at least one band-saw regulator mounted to the chassis, located between the driving and driven wheels, and stopping against the band saw;at least one force sensor mounted inside the at least one band-saw regulator for sensing how much a force is applied to the at least one band-saw regulator in the processing of cutting and emitting a sensing signal each; anda control system electrically connected with the motor and the at least one force sensor for receiving the sensing signal and controlling power output from the motor to the driving wheel according to the at least one sensing signal.2. The band saw machine as defined in claim 1 , wherein said at least one force sensor is two in number and the two force sensors are mounted to the two band-saw regulators claim 1 , respectively.3. The band saw machine as defined in claim 1 , ...

Chop Saw with Dust Collection System

A chop saw, grinding wheel, or like apparatus is disclosed herein also incorporated to an easily portable dust collection system. In a preferred embodiment, a worktable is provided with a center slot for receiving a circular saw blade. A negative pressure and resulting air flow is provided at the center slot to capture particulate matter as a byproduct of cutting the workpiece. Side slots are also disclosed to assist in particulate collection. A unique filter chamber having a cylindrical filter is additionally provided to remove dust from air and discharge the filtered air at a lateral side of the apparatus. A filter cleaning knob is additionally disclosed to assist in cleaning the filter. Of the beneficial aspects of the chop saw with dust collection system is its portability being one integral unit and the dust filter being easily cleaned and maintained. 1. A worktable comprising:a top portion configured to support a work piece, wherein the top portion comprises a blade slot configured to receive a blade;a filter chamber below the top portion and comprising a filter, wherein the filter chamber is configured to receive dust via the blade slot resulting from a cutting of the work piece; anda vacuum device coupled to the filter and configured to provide a negative pressure within the filter chamber, the negative pressure creating a downward air flow through the blade slot into the filter chamber.2. The worktable of claim 1 , further comprising a housing coupled to the top portion claim 1 , wherein the housing is positioned below the top portion and comprises four sides extending downwardly from the top portion claim 1 , and wherein the housing is configured to substantially enclose at least the filter chamber.3. The worktable of claim 2 , further comprising a vacuum chamber configured to house the vacuum device claim 2 , wherein the housing is further configured to substantially enclose the vacuum chamber.4. The worktable of claim 3 , further comprising a transverse ...

BLIND CUTTING DEVICE FOR CUSTOM SIZING OF WINDOW BLINDS

The safe and efficient cutting of window blinds can be accomplished by utilizing a blind cutting system which is configured to support and contain the blinds in a desired position, and to have a cutting saw move along a cutting plane such that a cutting blade will interact with the blinds and cut a predetermined portion from an end thereof. A framework is used to support the cutting saw and allow movement of a cutting blade in a very controlled manner, thus avoiding any possibility that the blade is positioned in a dangerous position during operation. Further, the travel of the cutting blade along a cutting path will create a cutting action in a controlled and defined manner. Further, the cutting blade is shielded on virtually all sides, thus eliminating the possibility of injury or harm to a user. 1. A blind cutting system for customizing window blinds , comprising:A framework;a pair of substantially parallel rails attached to the framework and oriented in a near vertical position during operation of the blind cutting device;a cutting saw slidably coupled to the pair of rails, the cutting saw having a cutting blade which is movable along a cutting path, which is contained within a portion of a cutting plane, when the saw is moved along the pair of rails, wherein the cutting plane is also substantially parallel to the pair of rails;a holding structure coupled to the frame and positioned in predetermined position relative to the pair of rails, the holding structure comprising an adjustable support shelf, a slidable holding clamp, and a slidable registration stop, wherein the adjustable support shelf is capable of being sized to support the blinds to be cut and has supporting surface which is and normal to the cutting plane, wherein the slidable holding clamp has a clamp surface substantially parallel to the supporting surface which is movable in a direction normal to the clamp surface and the supporting surface, and wherein the slidable registration stop has a stop ...

SYSTEM AND METHOD FOR EFFICIENT MATERIAL MEASUREMENT AND CONVERSION

Exemplary embodiments of a “Smart Cut” system and method for efficiently and accurately converting material length using a powered saw, such as a miter saw, are disclosed. Certain embodiments are configured such that a user of a miter saw may position a board or other material beneath the miter saw blade, and cut the material to a desired length, without any need to mark a measurement on the material prior to cutting it. It is an advantage of certain embodiments that a typical retractable tape measurement device, a portable tool that is ubiquitous in the construction industry, may be leveraged to indicate proper positioning of the material prior to cutting. 1. A system for converting material length using a powered saw , the system comprising:a table defining a substantially horizontal plane and a fence mounted to the table and defining a vertical plane;a carriage assembly configured for removably receiving a tape measuring device;a tape measuring device removably mounted on the carriage assembly, wherein the tape measuring device is spring-loaded and comprises a retractable blade with measurement demarcations;a measurement indicator positioned in association with the retractable blade to indicate a measurement; anda rabbit assembly in slidable communication with the fence, wherein a hook end of retractable blade is removably connected to the rabbit assembly and position of the rabbit assembly along the fence is urged by the spring-loaded tape measuring device;wherein when the table is mounted to a powered saw with a saw blade, the measurement indicated by the measurement indicator corresponds to a length between a stop surface of the rabbit assembly and a proximate edge of the saw blade.2. The system of claim 1 , wherein the measurement indicator comprises a needle.3. The system of claim 1 , wherein the measurement indicator comprises a light beam.4. The system of claim 1 , wherein the rabbit assembly comprises one or more sheaves configured to promote transition ...

DUST COLLECTOR

A dust collector in one aspect of the present invention comprises a dust collection portion, a communication portion, and an interlock operation control portion. When the communication portion receives an interlock command transmitted from an electric working machine, the interlock operation control portion makes the dust collection portion operate interlocking with the electric working machine. The interlock operation control portion includes a storage portion, in which identification information specific to the electric working machine with which the dust collection portion is to be made to perform the interlock operation is stored. 1. A dust collector comprising:a dust collector main body configured to operate by receiving a power supply from an external alternating current power source; anda communication unit attached to the dust collector main body, the communication unit being configured to (1) receive an interlock command wirelessly transmitted from an electric working machine and (2) output an operation command to the dust collector main body in response to receipt of the interlock command,wherein the dust collector main body includes an isolation device configured to electrically isolate the alternating current power source from the communication unit.2. The dust collector according to claim 1 ,wherein the isolation device includes an isolation transformer.3. The dust collector according to claim 1 ,wherein the isolation device includes a contactless circuit configured to contactlessly transmit a signal between an operation portion of the dust collector main body and the communication unit, the operation portion being configured to operate by receiving power from the alternating current power source.4. The dust collector according to claim 1 , an antenna for wireless communication;', 'a signal input/output portion configured to input and output a signal including the operation command to and from the dust collector main body; and', 'a communication control ...

Optical Alignment Device for a Table Saw

A table saw includes a workpiece support surface and a laser apparatus. The workpiece support surface defines a blade opening through which a cutting blade is configured to extend. The laser apparatus is configured to emit a laser light away from the workpiece support surface. 1. A table saw comprising:a workpiece support surface defining a blade opening through which a cutting blade is configured to extend; anda laser apparatus configured to emit a laser light away from the workpiece support surface.2. The table saw of claim 1 , further comprising:a reflective surface operably positioned to reflect the laser light toward the workpiece support surface.3. The table saw of wherein the reflective surface reflects the laser light onto the workpiece support surface in a position based on a cutting path of the cutting blade.4. The table saw of claim 2 , further comprising:a riving knife having an upper knife portion positioned above the workpiece support surface and a lower knife portion positioned below the workpiece support surface; anda blade guard connected to the upper knife portion of the riving knife,wherein (i) the laser apparatus is connected to the lower knife portion, and (ii) the reflective surface is connected to one of the upper knife portion and the blade guard.5. The table saw of claim 2 , wherein the laser apparatus emits the laser light through a laser opening in the workpiece support surface.6. The table saw of wherein:the cutting blade is configured to rotate about a rotational axis, andthe laser apparatus is configured to rotate about the rotational axis.7. Table saw of claim 6 , further comprising:a reflective surface operably positioned to reflect the laser light toward the workpiece support surface.8. A table saw comprising:a workpiece support surface defining a blade opening through which a cutting blade is configured to extend;a light apparatus configured to emit a beam of light; anda reflective surface operably positioned to reflect the beam of ...

Magnetically Attachable and Extendable Saw and Methods for Using the Same

An extendable saw can include a blade housing coupled to a main body by at least one extendable member, the blade housing at least partially covers a saw blade and the extendable member can be configured to move the blade housing and the saw blade between a retracted position and an extended position relative to the main body. The extendable saw can also include a motorized unit coupled to the saw blade and configured to rotate or provide other blade movement to the saw blade and a switchable device or unit disposed on the main body and having at least one contact surface that is switchable between a magnetized or vacuum state and a non-magnetized state or non-vacuum state, respectively.

METHOD FOR CONTROLLING A DEVICE SYSTEM DURING THE CUTTING OF A WORKPIECE ALONG A CUTTING LINE

A method for controlling a device system () during the cutting of a workpiece () along a cutting line () up to a first end point (E) using a saw head () that can be moved on a guide rail () along an advancing direction (), whereby the saw head () is arranged on the guide rail () in a starting position (X), and a first partial length (L) extending from the starting position (X) to the first end point (E) of the cutting line () is entered. 16-. (canceled)7. A method for controlling a device during the cutting of a workpiece along a cutting line up to a first end point using a saw head movable on a guide rail along an advancing direction , the method comprising:arranging the saw head on the guide rail in a starting position; andentering a first partial length extending from the starting position to the first end point of the cutting line.8. The method as recited in further comprising entering a total length extending from the first end point to a second end point of the cutting line.9. The method as recited in further comprising entering a second partial length extending from the starting position to a second end point of the cutting line.10. The method as recited in wherein the operator enters the first partial length claim 7 , a second partial length or a total length of the cutting line into a control unit.11. The method as recited in wherein the first partial length claim 7 , a second partial length or a total length of the cutting line are entered via a sensor system for a distance measurement.12. The method as recited in wherein the first partial length claim 11 , the second partial length or the total length of the cutting line are transmitted by the sensor system to the device via a communication connection.13. The method as recited in wherein the operator enters the first partial length and the total length of the cutting line into a control unit.14. The method as recited in wherein the operator enters the first partial length and the second partial length ...

Remotely Powered Cutting Assembly

A remotely powered cutting assembly includes a power unit that may be worn. A cutting unit is provided and the cutting unit may be manipulated thereby facilitating the cutting unit to cut objects. The cutting unit is in mechanical communication with the power unit. Thus, the cutting unit may inhibit hands from being exposed to vibration associated with the power unit thereby inhibiting development of carpal tunnel syndrome.

MITER SAW

A miter saw includes a base assembly and a saw unit pivotably coupled to the base assembly. The saw unit includes a saw blade and a lower blade guard covering a lower portion of the saw blade. The miter saw also includes a linkage for raising the lower blade guard to expose the lower portion of the saw blade as the saw unit is lowered toward the base assembly. The linkage is operable to apply a force to the lower blade guard for holding the lower blade guard in a raised position, without any input from the operator of the miter saw and without changing the length of the linkage, to facilitate changing the saw blade. 1. A miter saw comprising:a base assembly;a saw unit pivotably coupled to the base assembly, the saw unit including a saw blade and a lower blade guard covering a lower portion of the saw blade; anda linkage for raising the lower blade guard to expose the lower portion of the saw blade as the saw unit is lowered toward the base assembly, wherein the linkage is operable to apply a force to the lower blade guard for holding the lower blade guard in a raised position, without any input from the operator of the miter saw and without changing the length of the linkage, to facilitate changing the saw blade.2. The miter saw of claim 1 , wherein the saw unit is pivotably coupled to the base assembly about a first pivot axis claim 1 , and wherein the miter saw further comprises a first biasing member operable to apply a first moment to the saw unit about the first pivot axis in a first rotational direction to raise the saw unit from a lowered position to a fully raised position.3. The miter saw of claim 2 , wherein the lower blade guard is pivotable about a second pivot axis claim 2 , and wherein the saw unit further comprises a second biasing member operable to apply a second moment to the lower blade guard about the second pivot axis in a second rotational direction to cover the lower portion of the saw blade claim 2 , and wherein the first rotational direction ...

SAFETY DEVICE FOR POWER CUTTING TOOLS

A system of safety devices is disclosed for use in connection with powered cutting tools, including but not limited to table saws, miter saws, jointers, shapers and routers. The devices include a right hand push device adapted to slide along the fence of a table saw, shaper, router or jointer, a dual bearing hold down device to secure a work piece in at least three directions and adapted for use with a table saw, shaper, router or jointer, an anti-kickback device to secure a work piece after a cut is made and while cutting continues and adapted for use with a table saw, shaper, router or jointer, a left hand hold down device for securing a work piece on the side of a cutting blade opposite that of a fence and adapted for use with a table saw, shaper, router or jointer, and a hold down device adapted for use with miter saws. Each of the devices, alone and in combination, protect the operator of the power tools from serious injury from the cutting tool and from work piece kickback. 1. An anti-kickback safety device adapted for use with a powered cutting tool , the power cutting tool having a planer work surface , comprising:a. A frame adapted to be secured to the cutting tool;b. A hold down arm pivotally connected to the frame and extending outwardly from the frame, the hold down arm having a proximal end and a distal end;c. Bearing means disposed at the distal end of the hold down arm; andd. Biasing means applying a force to the proximal end of the hold down arm to push the bearing means in a vertical downward direction.2. The anti-kickback device of claim 1 , wherein the biasing means comprises a shaft rotatably interconnected with the frame claim 1 , with one end of the shaft interconnected to the proximal end of the hold down arm claim 1 , and a spring operatively associated with the shaft to apply a rotational biasing force to the shaft.3. The anti-kickback device of claim 2 , further comprising a rotatable collar surrounding a length of the shaft claim 2 , the ...

Suction device

A suction device for a hole saw of a hand-held power tool oscillatingly driven about an oscillation axis. A substantially disk-shaped base body has a first side that faces the hand-held power tool and a second side that faces the hole saw. A fastening section detachably fastens the suction device to an oscillatingly driven hand-held power tool; and a connecting piece connects the suction device to a suction apparatus.

Firefighting Apparatus

A device for ventilating a burning building, comprising a chassis; and a cutting assembly, mounted on the chassis. The cutting assembly is adapted to cut a ventilation hole in a roof or wall member of a building either autonomously or under remote control by an operator to allow smoke and/or hot gases to escape from the roof space. 118-. (canceled)19. A device for ventilating a burning building comprising:a chassis; anda cutting assembly mounted on the chassis wherein the cutting assembly is adapted to cut a ventilation hole in a roof or wall member of the building either autonomously or under remote control by an operator.20. The device of wherein the cutting assembly comprises a chain saw mounted for rotational displacement with respect to the chassis on an axis substantially perpendicular to a roof member to be cut claim 19 , thereby allowing a circular hole to be cut in a roof of a building.21. The device of wherein the cutting assembly comprises two chain saws mounted for rotational displacement with respect to the chassis on an axis substantially perpendicular to a roof member to be cut claim 19 , and wherein the chain saws are mounted opposite each other on the circle of rotation.22. The device of wherein the cutting assembly comprises a cutter that may be moved between a first and second orientation to enable the direction of cut relative to the chassis to be controlled.23. The device of wherein the cutting assembly comprises a circular cutter rotatable on an axis substantially perpendicular to a roof or wall member to be cut.24. The device of wherein the cutting assembly may be moved from a first position substantially within a footprint of the chassis to a second position where the cutter operates outside the footprint of the chassis.25. The device of wherein the movement is a hinged movement about an axis substantially parallel to a roof or wall to be cut.26. The device of wherein the chassis further comprises a drive mechanism adapted for driving ...

System For Adjusting The Cut Thickness Of A Band Saw

A system for positioning the cutting edge of a band saw blade at a desired vertical height with respect to a log. The system includes a frame bed for retaining a log in a fixed position. A powered horizontal trolley moves the band saw along a generally horizontal path to cut a board from a log and a powered vertical trolley moves the cutting edge of the saw blade vertically. A sensing arm pivotally on the vertical trolley has a distal end that rides along the log during the cutting process. The system senses the position of the sensing arm as it rises to control the position of the vertical trolley. An adjustment system allows the user to set the depth of cut of the cutting edge of the saw blade. 1. A system for positioning the cutting edge of a band saw blade at a desired vertical height with respect to a log , the system comprising a frame bed adapted to retain a log in a fixed position , a powered horizontal trolley adapted to move the band saw along a generally horizontal path to cut a board from a log , a powered vertical trolley , a band saw blade rotatably affixed to the vertical trolley , the hand saw blade having a cutting edge facing the log , a sensing arm pivotally mounted at a fixed pivot point with respect to the vertical carriage , the sensing arm having a distal end adapted to rest on an upper , previously sawn surface of a log , the system adapted to sense the position of the distal end of the sensing arm resting on the previously sawn surface of the log to control the vertical trolley to establish the vertical position of the cutting edge of the saw blade.2. The system of further including a vertical control lever to control the powered vertical trolley claim 1 , the vertical control lever having a forward position to move the vertical trolley upwardly claim 1 , a rearward position to move the vertical trolley downwardly and a neutral position claim 1 , the vertical control lever being biased toward the neutral position and a control box lever ...

CUTTING GUIDE

This invention provides a guide for use with cutting power tools such as routers, circular saws, rotary cutters and the like. The invention provides a secure path along which a power tool can be used. The invention provides a device that is securely held against a surface by either user pressure or suction pressure and maintains its position along the surface to be cut. The invention can be configured to provide for varying cutting tools and differing attachments that are on the cutting tool and would be slid along the invention to effectuate a cut. 1. A cutting guide that provides a means to guide a power cutting tool comprising:A control plate;A connecting plate affixed to said control plate and extending in a generally perpendicular relation from said control plate;A guide plate affixed to said connecting plate and extending in a generally perpendicular relation from said connecting plate such that said guide plate is generally parallel to said control plate and said control plate, said connecting plate, and said guide plate are aligned substantially in planar relation to each other;A rail affixed to said guide plate and extending upwardly from said plane formed by said control plate, said connecting plate, and said guide plate, such that said rail is securely held in vertical relation from said plane by said guide plate.2. The cutting guide of claim 1 , further comprising:A pressure pad affixed to the top surface of said control plate;A foot affixed to the underside of said control plate and optionally said connecting plate, and/or said guide plate, said foot providing additional friction between the cutting guide and the surface upon which it is placed;A handle affixed to the top surface of said control plate.3. The cutting guide of further comprising:One or more alignment rods affixed to said guide plate such that said alignment rods can be placed on or into the material to be cut, andWherein said connecting plate is adjustable in length.4. A cutting guide ...

Transferring Rotation Torque through Isolator for Table Saw

An output member is configured to transfer rotation and torque from a motor of a power tool to a working element of the power tool. The working element is configured to contact a workpiece. The output member includes a hub, an outer shell, and an isolator. The hub is configured to be driven rotationally about an axis of rotation by the motor of the power tool. The outer shell is configured to be coupled to the working element of the power tool. The isolator is interposed between the hub and the outer shell and is configured to electrically isolate the hub from the outer shell. 1. An output member configured to transfer rotation and torque from a motor of a power tool to a working element of the power tool , which is configured to contact a workpiece , the output member comprising:a hub configured to be driven rotationally about an axis of rotation by the motor of the power tool;an outer shell configured to be coupled to the working element of the power tool; andan isolator interposed between the hub and the outer shell and configured to electrically isolate the hub from the outer shell.2. The output member of claim 1 , wherein the isolator is made of a dielectric material and is in direct contact with the hub and the outer shell.3. The output member of claim 2 , wherein the isolator is made of a plastic material.4. The output member of claim 1 , wherein the isolator has a uniform thickness between the hub and the outer shell.5. The output member of claim 1 , wherein:the hub includes a main body and a plurality of spokes integrally formed with the main body, andthe isolator is in direct contact with the main body and each spoke of the plurality of spokes.6. The output member of claim 5 , wherein:the isolator includes a plurality of outwardly facing surfaces opposite the spokes and the main body of the hub, andthe outer shell is in direct contact with each of the outwardly facing surfaces of the isolator.7. The output member of claim 6 , wherein:the outer shell ...

UTILITY CHAIN CUTTER

Embodiments provide various saw chain links which may be combined to form a utility saw chain. In various other embodiments, cutting system fixtures are disclosed which may facilitate the cutting of pipes and other materials from an axis point. 1. A cutting fixture , comprising:an attachment element including one or more stabilizing members configured to removably couple to a material to be cut; anda cutting system mount coupled to the attachment element, wherein the cutting system mount is configured to facilitate attachment of a chain saw to the cutting fixture and to provide an axis of rotation for the chain saw.2. The cutting fixture of claim 1 , wherein the one or more stabilizing members includes two opposing stabilizing members claim 1 , wherein the two opposing stabilizing members are configured to selectively engage the material to be cut.3. The cutting fixture of claim 2 , wherein the two opposing stabilizing members are configured to selectively clamp onto the material to be cut.4. The cutting fixture of claim 1 , wherein the stabilizing members comprise one or more materials adapted to reduce vibration.5. The cutting fixture of claim 1 , wherein the stabilizing members are adjustable to secure the fixture to pipes of various diameters.6. The cutting fixture of claim 1 , wherein the cutting system mount is configured to facilitate attachment of the chain saw to the cutting fixture.7. The cutting fixture of claim 1 , wherein the cutting system mount includes a fulcrum point to provide the axis of rotation.8. The cutting fixture of claim 7 , wherein the cutting system mount is configured to permit the chain saw to cross cut the material to be cut in one pass by rotating the chain saw about the fulcrum point.9. The cutting fixture of claim 1 , wherein the cutting system mount is configured to be raised or lowered to compensate for differently sized chain saws.10. The cutting fixture of claim 1 , wherein the material to be cut is a pipe.11. A cutting fixture ...

SAW BLADE SHARPNESS MECHANISM

In accordance with an example embodiment, a saw blade sharpness mechanism for use on a tree sawing device, having a saw blade which rotates to saw trees. The saw blade dulls over time during normal operating conditions, and the speed of the saw blade decreases as the saw blade contacts the tree during sawing operation. The speed of the saw blade during sawing operations decreases more after repeated operations as the saw blade dulls. A sensor senses the speed of the saw blade. A processor receives inputs from the sensor and determines when the speed of the saw blade during tree sawing operation has decreased due to wear to a point that it would be more economical to replace the saw blade with a new sharper blade. When such condition is determined, the processor sends a signal to an indicator which sends a signal to the operator. 1. A saw blade sharpness mechanism for use on a tree sawing device , comprising:a saw blade which rotates to saw trees, the saw blade comprising a plurality of saw blade teeth that dull over time during normal operating conditions, a speed of the saw blade decreases as the saw blade contacts the tree during a sawing operation, and the speed of the saw blade during sawing operations decreases more after repeated sawing operations as the saw blade teeth become dull;an indicator that sends a signal to an operator;a sensor that senses the speed of the saw blade, and senses the decreasing speed of the saw blade during sawing operations; anda processor that receives an input from the sensor, the processor determines when the speed of the saw blade during the sawing operation has decreased due to wear to a point that it would be more economical to replace the saw blade teeth with new sharper saw blade teeth, and the processor sends a signal to the indicator to send the signal to the operator when such condition occurs.2. The mechanism of claim 1 , wherein the processor receives a blade cost input from one or more of a memory claim 1 , a lookup ...

RECIPROCATING SAW

A reciprocating saw includes a casing, a clamping mechanism, a bracket, a first light-emitting piece, and a second light-emitting piece. The casing extends in a front-and-rear direction and forms an accommodation space. The clamping mechanism is disposed at least partially in the accommodation space and configured to clamp an operation accessory. The bracket is disposed at least partially on a front side of the clamping mechanism. The first light-emitting piece and the second light-emitting piece are disposed on a front side of the casing. The first light-emitting piece fits with the bracket and the operation accessory so that a cutting indicator line distributed in an extension direction of the operation accessory is formed. The second light-emitting piece fits with the bracket so that a cutting indicator region perpendicular to the cutting indicator line and extending in an up-and-down direction is formed. 1. A reciprocating saw , comprising:a casing extending in a front-and-rear direction and forming an accommodation space;a clamping mechanism disposed at least partially in the accommodation space and configured to clamp an operation accessory;a bracket disposed at least partially on a front side of the clamping mechanism;a first light-emitting piece disposed on a front side of the casing; anda second light-emitting piece disposed on the front side of the casing;wherein the first light-emitting piece fits with the bracket and the operation accessory so that a cutting indicator line distributed in an extension direction of the operation accessory is formed, and the second light-emitting piece fits with the bracket so that a cutting indicator region perpendicular to the cutting indicator line and extending in an up-and-down direction is formed.2. The reciprocating saw of claim 1 , wherein the bracket is formed with an opening through which at least part of the operation accessory is capable of passing and light emitted by the first light-emitting piece passes ...

System for enhancing operation of power tools

A system for facilitating power tool operation and positioning includes a power tool, remote detectable device attached to the power tool, a computing device communicating with the power tool to detect the location of the power tool relative to the computing device by detecting the location remote detectable device, and a display for displaying or inputting information into the computing device. The computing device is able to receive and store CAD dimensional data representing a layout of a work area and specific locations in that area where work need to be done. The computing device directs a positioning of the tool at a work site by comparing the position of the tool with the CAD layout position of a location where work needs to be done.

Method and Apparatus for Verifying Length of Work Pieces

An apparatus and method for ensuring the accuracy and utility of cut-to-length systems. Multiple channels of measurement are employed, by which a first channel of measurement produces a first measurement of a work piece taken between a cutting mechanism and a limit stopper. A second channel of measurement produces a second measurement, wherein cutting of the work piece by the cutting mechanism cannot be made unless the first measurement agrees with the second measurement. 1. An apparatus for ensuring the accuracy and utility of cut-to-length systems , comprising:a primary channel of measurement producing a first measurement of a work piece taken between a cutting mechanism and a limit stopper; anda second channel of measurement producing a second measurement, wherein cutting of the work piece by the cutting mechanism cannot be made unless the first measurement agrees with the second measurement.2. The apparatus of wherein if the first measurement does not agree with the second measurement claim 1 , then the cutting mechanism will be blocked from cutting the work piece.3. The apparatus of wherein the second channel of measurement comprises a sensor and a counter.4. The apparatus of wherein the sensor monitors both a vertical position and a horizontal position of the work piece and the counter determines if the first measurement and the second measurement agree.5. The apparatus of wherein the counter takes into account a plus/minus tolerance of the first measurement when determining if the first measurement and the second measurement agree.6. The apparatus of wherein the apparatus further comprises a primary mover system comprising a fixed vise to hold onto the work piece claim 1 , and an index vise to move the work piece towards the cutting mechanism.7. A method for ensuring the accuracy and utility of a cut-to-length system claim 1 , comprising:indexing a work piece with respect to a cutting mechanism to create a first measurement;monitoring a position of the work ...

SAFETY METHOD AND HANDHELD POWER TOOL

A hand-held power tool () includes a tool holder () for holding a tool on a working axis () and a motor () for rotationally driving the tool holder () about the working axis (). The motor () is situated in a power-tool housing () and a handle () is fastened on the power-tool housing () for guiding the hand-held power tool () during operation. A rotary motion sensor () detects a rotary motion of the power-tool housing () about the working axis (). A monitor () ascertains a holding force based on an amplitude of the rotary motion in a frequency range between 0.4 Hz and 4 Hz. A safety device () reduces a torque output to the tool holder () when the detected rotary motion exceeds a limiting value, the limiting value being set as a function of the holding force. 15-. (canceled)6. A hand-held power tool comprising:a tool holder for holding a tool on a working axis;a motor for rotationally driving the tool holder about the working axis;a power-tool housing, the motor being situated in the power-tool housing;a handle fastened on the power-tool housing for guiding the hand-held power tool during operation;a rotary motion sensor detecting a rotary motion of the power-tool housing about the working axis;a monitor ascertaining a holding force of the user based on an amplitude of the rotary motion in a frequency range between 0.4 Hz and 4 Hz, and a safety device reducing a torque output to the tool holder when the detected rotary motion exceeds the limiting value, the limiting value being set as a function of the holding force.7. The hand-held power tool as recited in wherein the rotary motion sensor detects the angular velocity of the power-tool housing about the working axis.8. The hand-held power tool as recited in wherein the safety device compares a variable based on the angular velocity or a torsion angle of the power-tool housing with a limiting value claim 6 , and the safety device increases the limiting value as the holding force increases.9. The hand-held power tool as ...

SAW CUTTING GUIDE

The improved saw cutting guide of the present invention overcomes many of the disadvantages of prior art power cutting tools by providing a portable, mechanical guide for safely and accurately guiding a powered cutting tool along a predetermined cut line in the workpiece that is at a desired angular position relative to the cutting blade of the power cutting tool. The saw cutting guide includes a main baseplate having a top side and an under side, and featuring a guide track on the top side, for receiving and guiding a power cutting tool, and a pivotally mounted alignment fence on the underside for selectively aligning the work piece in relation to the guide track. In a preferred embodiment, the power cutting tool comprises an electric circular saw having a metal cutting blade featuring cold saw metal-cutting technology. 1. A portable cutting guide for guiding a powered hand tool , comprising:a main base plate having a top side and an underside;a guide track, configured on the top side of said main base plate, said guide track including two guide elements configured in parallel, each of said guide elements having a planar lateral edge for slidably engaging therebetween a guide plate of said powered hand tool, wherein said guide track includes slot formed in said main base plate between said two guide element that enables a cutting edge of said powered hand tool to extend through the main base plate; andan alignment fence, pivotally mounted to the underside of the main base plate, for selectively aligning a work piece in relation to said guide track.2. The portable cutting guide of claim 1 , further comprising a first cross-member configured between the two guide elements that limits the forward travel of the powered hand tool in the guide track.3. The portable cutting guide of claim 2 , further comprising a second cross- member configured between the two guide elements that limits the rearward travel of the powered hand tool slidably engaged in the guide track.4. ...

CUTTING GRINDER AND METHOD FOR CUTTING THROUGH A RAIL OF A TRACK

A cutting grinder for cutting through a rail of a track includes a detection device for detecting a proposed cutting position. The cutting grinder guarantees simple, user-friendly and efficient through-cutting of the rail.

VERTICAL GRAIN SAWMILL AND METHOD OF SAWING VERTICAL GRAIN LUMBER

What is disclosed is an improved method of sawing wood and an improved sawmill capable of producing vertical grain lumber. Vertical grain lumber is a preferred lumber for use, for example, in trim applications. The improved method and improved sawmill both utilize a track having a carriage, the carriage has a vertical blade and a horizontal blade. The vertical blade and the horizontal blade travel on the carriage down the track. The log is then rotated for another length of lumber to be cut. In a preferred embodiment the sawmill utilizes a skewer for adjusting the log. In a preferred embodiment the log is held by a lathe that can be moved. In a preferred embodiment the log is placed on a skewer before it is engaged by the lathe. 1. A method of cutting vertical grain lumber , where said method comprises the following steps:the step of providing a sawmill, wherein said sawmill is configured to cut a log into a plurality of boards in a lengthwise manner, wherein said sawmill comprises a rotational mechanism for holding and rotating a log, wherein said sawmill comprises a cutting mechanism for cutting a vertical grain board from said log;the step of positioning a log in a first position in said rotational mechanism for holding and rotating a log;the step of cutting at least one vertical grain board from said log in said first position;the step of rotating said log to a second position;the step of cutting at least one vertical grain board from said log in said second position.2. The method of claim 1 , wherein said rotational mechanism for holding and rotating a log comprises a lathe.3. The method of claim 2 , wherein said lathe comprises a ratchet and pawl mechanism for arresting rotation of said lathe.4. The method of claim 1 , wherein said cutting mechanism comprises a track and carriage claim 1 , wherein said track and carriage are oriented such that said track and carriage run generally parallel to the lengthwise vector of a log when a log is held by said rotational ...

Guard Device For A Table Saw

A guard device for a saw system in which the table saw is not operated without a saw blade guard, unless a user intends to make a non-through cut in a workpiece. The guard device, in one embodiment, determines whether an adjusted saw blade height corresponds to a thickness of the work piece to be cut and prevents the tool or motor driving the saw blade from operating if the saw blade is adjusted too high, in order to improve work conditions. 1. A saw including a saw blade for cutting a workpiece and a motor coupled to the saw blade , the motor having an on condition to move the saw blade for cutting the workpiece and an off condition in which the saw blade is not moved , the saw comprising:a table top defining an opening and including a work surface, the work surface configured to support the workpiece for movement along the table top toward the opening;a saw blade carriage configured to support the saw blade with respect to the table top;a workpiece detection system configured to detect the workpiece, the workpiece detection system including an emitter/detector configured to transmit a beam toward the workpiece, to detect one of the presence of a reflected signal from the workpiece indicative of the height of the workpiece and the absence of the reflected signal from the workpiece, and to transmit a workpiece height signal indicative of the detected one of the presence and absence of reflected signal from the workpiece, a processing unit operatively coupled to the emitter/detector, and a relay operatively coupled between the processing unit and the motor, wherein the processing unit is configured to provide a relay signal to the relay in response to the workpiece height signal, wherein the relay signal is configured to control movement of the saw blade.2. The saw of wherein the emitter/detector is fixedly coupled to one of a frame of the saw and the saw blade carriage.3. The saw of wherein the emitter/detector is located on one side of the work surface and the ...

A GUIDE FOR A CUTTING TOOL

A guide for a cutting tool. The guide comprises a plate and an attachment means for attaching the plate to the cutting tool. 1. A guide for a circular cutter , the guide comprising:a reflector plate for reflecting a laser and an attachment means for attaching the reflector plate to the circular saw, on the reflector plate there is formed at least one linear marking which when aligned with a projected line from the laser, is positioned so as to locate a blade of the circular cutter in a plane defined by the laser; andan adjustable connector enables the reflector plate to be adjusted through a range of angles, in the plane of the blade, so as to enable the reflector plate to be oriented at a desired angle with respect to a line laser.2. The guide according to wherein the reflector plate is flat and substantially planar.3. The guide according to wherein the reflector plate is substantially rectangular.4. The guide according to claim 1 , wherein linear markings are defined on the reflector plate and are positioned at angles one to another on a face of the plate which in use faces away from the blade.5. The guide according to wherein the linear markings comprise a pair of marks at opposite edges of the reflector plate.6. The guide according to wherein the attachment means is adapted to connect the reflector plate to a body or shroud of a circular cutter claim 1 , such as a circular saw.7. (canceled)8. The guide according to wherein the adjuster adjustable connector is supported in an arcuate slot or groove and is movable and lockable with respect to the slot or groove.9. The guide according to wherein the attachment means is supported by a body that is connected to one end of the reflector plate.10. The guide according to wherein bolts are supported by the body claim 9 , the bolts claim 9 , act as attachment means for releasably attaching the reflector plate to the circular cutter.11. The guide according to wherein the body supports at least two claim 10 , and ideally ...

HAND-HELD POWER TOOL INFORMATION DEVICE

A hand-held power tool information device includes at least one detection unit configured to detect at least one processing distance covered by a cutting edge of a processing tool on a workpiece. The detection unit is also configured to detect the at least one processing distance independently of a guide rail. The hand-held power tool information device can further include a distance sensor unit that is configured to detect at least one distance value. 1. A hand-held power tool information device comprising:at least one detection unit configured to detect at least one processing distance covered by a cutting edge of a processing tool on a workpiece independently of a guide rail.2. The hand-held power tool information device of claim 1 , wherein the at least one detection unit comprises a distance sensor unit configured to detect at least one distance value.3. The hand-held power tool information device of claim 2 , wherein the at least one detection unit further comprises a computer unit configured to calculate the at least one processing distance based on at least one processing tool parameter and the at least one distance value.4. The hand-held power tool information device of claim 1 , wherein the at least one detection unit comprises at least one plunge depth sensor unit configured to identify a current plunge depth value of the at least one processing tool.5. The hand-held power tool information device of claim 4 , wherein the computer unit is configured to calculate the at least one processing distance based on the current plunge depth value.6. The hand-held power tool information device of claim 1 , further comprising an input unit configured to receive an input corresponding to at least one operating value.7. The hand-held power tool information device of claim 6 , wherein the input unit comprises at least one touch screen.8. The hand-held power tool information device of claim 2 , wherein the distance sensor unit further comprises at least one distance ...

Sawhorse Attachment Device for Resting a Worm-drive Saw

A sawhorse attachment device which permits a hand-held electric worm-drive circular saw to be suspended from the sawhorse by the saw's handle when the attachment is affixed to the sawhorse. The device includes a base portion configured for mounting the device to a sawhorse, and a hook portion over which the auxiliary C-shaped handle of a hand-held electric worm-drive circular saw is to be placed when the saw is to be suspended from the device, the hook portion being coupled to the base portion, and extending upwardly from the base portion at an angle. 1. A sawhorse attachment device for suspending a hand-held electric worm-drive circular saw by its handle , the device comprising:a base portion configured for mounting the device to the sawhorse; anda hook portion for suspending the saw from the device, the hook portion being coupled to the base portion and extending upwardly from the base portion at an angle.2. The sawhorse attachment device of claim 1 , wherein the length of the base portion is 12 inches claim 1 , the width of the base portion is 3.75 inches claim 1 , the length of the hook portion is 5.5 inches claim 1 , and the width of the hook portion is 3.25 inches.3. The sawhorse attachment device of claim 1 , wherein the angle at which the hook portion extends upwardly from the base portion is 30 degrees. The present invention relates generally to the field of carpentry and construction tools. More specifically, the present invention relates to a sawhorse attachment device that permits a user of a hand-held electric circular saw to rest the saw while not in use in a way that is convenient and safe to the user, and that prolongs the life of the saw.In carpentry or construction applications, hand-held circular saws are widely used by tradesmen, such as carpenters, construction workers, etc. Hand-held electric circular saws are either side-drive or worm-drive. For side-drive electric circular saws, the blade is mounted directly to the motor's driveshaft motor, ...

Circular saw apparatus with integrated multistage filtration system

Various dust collection apparatuses are disclosed, which include a vacuum source, a circular saw blade, and a worktable comprising a center slot axially aligned to the circular saw blade. In a first aspect, the center slot includes an air flow channel proximate to an anticipated point of contact between the circular saw blade and a workpiece, and the vacuum source is configured to provide a focused negative pressure beneath the worktable via the air flow channel In another aspect, the vacuum source provides a negative pressure beneath the worktable at the center slot, and a multistage filter is included to collect airborne dust drawn by the negative pressure from an area proximate to the center slot. In yet another aspect, the vacuum source is configured to provide a first negative pressure beneath the worktable at the center slot, and a second negative pressure via an auxiliary port.

Method and System of Rivering Filtration for Power Saw Machine

A rivering filtration system for a power saw machine includes a filtration tray having a filtration cavity for collecting operation fluid after the operation fluid is delivered onto the cutting blade, and a fluid collecting tray located underneath the filtration tray, wherein the fluid collecting tray has first and second cavities. The filtration tray provides a first filtration stage for filtrating the visible residual particles out from the operation fluid. The fluid collecting tray provides a second filtration stage that the operation fluid is slowly filled in the first cavity from the filtration cavity to ensure slurry residual particles in the operation fluid being deposited at the first cavity, and a third filtration stage that the operation fluid is slowly filled in the second cavity from the first cavity to ensure the slurry residual particles being filtrated out of the operation fluid. 1. A power saw machine , comprising:a cutting head arrangement which comprises a cutting blade being driven to rotate for contacting with a work piece during a cutting operation; anda rivering filtration system located underneath said cutting head arrangement for collecting operation fluid and filtrating residual particles in the operation fluid with multiple filtration stages so as to separate different sizes of the residual particles in the operation fluid after the operation fluid is delivered onto said cutting blade.2. The power saw machine claim 1 , as recited in claim 1 , wherein said rivering filtration system a filtering element made of mesh material located underneath said cutting head arrangement for filtering heavy debris in the operation fluid after the operation fluid is delivered onto said cutting blade.3. The power saw machine claim 2 , as recited in claim 2 , wherein said rivering filtration system further comprises a filtration tray claim 2 , which is supported underneath said cutting blade claim 2 , having a filtrating cavity for collecting larger size of ...

GUIDE RULER FOR PORTABLE MACHINING APPARATUS

A positioner positions a guide ruler relative to a workpiece that is adjacent to the guide ruler while more stably retaining the guide ruler at the locked position without causing interference with a cutting operation. A positioner that positions a ruler body relative to a workpiece includes a contact member to be in contact with an edge of the workpiece and extendable along the edge of the workpiece, a support supporting the contact member in a manner rotatable on a lower surface of the ruler body, and a position retainer that retains the contact member at a rotational position. 1. A guide ruler for guiding a portable machining apparatus in a machining direction relative to a workpiece , the guide ruler comprising:a ruler body; and a contact member to be in contact with an edge of the workpiece, the contact member being extendable along the edge of the workpiece,', 'a support supporting the contact member in a manner rotatable on a lower surface of the ruler body, and', 'a position retainer configured to retain the contact member at a rotational position., 'a positioner configured to position the ruler body relative to the workpiece, the positioner including'}2. The guide ruler according to claim 1 , whereinthe contact member is extendable longer along the edge of the workpiece at a greater angle with a direction orthogonal to a longitudinal direction of the ruler body.3. The guide ruler according to claim 1 , whereinthe contact member includesan elongated first member, andan elongated second member connected to the first member in a manner displaceable in a longitudinal direction of the first member.4. The guide ruler according to claim 3 , whereinthe first member includes a pair of guide walls configured to guide the second member in the longitudinal direction.5. The guide ruler according to claim 3 , whereinthe second member has an elongated slot, andthe guide ruler further comprises a guide protrusion placed through the elongated slot and attached to the first ...

DEVICE FOR CUTTING CONCRETE PILES

The invention relates to a device for cutting concrete piles. The device having a frame, gripping means connected to the frame and including at least two opposing gripping parts, which are movable at least closer to each other to form a closing grip around a pile and further away from each other to release the pile from the closing grip, and sawing means, which are arranged to perform a back and forth sawing movement on the two opposite sides of the pile moving along a horizontal guide rail attached to the frame and which is further arranged to turn towards the pile to be sawed and back around their rotational axis. The invention further relates to computer program means suitable for controlling a device according to the invention to perform a desired sawing profile in the concrete pile. 1. A device for cutting concrete piles , comprising a frame , gripping means connected to the frame and comprising at least two opposing gripping parts , which are movable at least closer to each other to form a closing grip around a pile and further away from each other to release a pile from the closing grip , and sawing means , which , when using the device , are to be taken on the two opposite sides of the pile to perform a back and forth sawing movement moving along a horizontal guide rail attached to the frame and which are further arranged to turn towards the pile to be sawed and back around their rotational axis wherein the device comprises a turning mechanism , an angle sensor arranged in the end of the rotational axis for measuring the angle of rotation of the sawing means and elements for defining the location of the sawing means on the guide rail and control elements for controlling the sawing means on the basis of the signals from the angle sensor and the elements defining the location of the sawing means to perform a de-sired sawing profile in the concrete pile to be cut.2. The device according to claim 1 , wherein the device comprises an inductive sensor for detecting ...

Accessory for a reciprocating saw

An accessory for a reciprocating power tool including a first blade clamp mechanism and a linkage having a first end and a second end. The accessory further includes an attachment member coupled to the first blade clamp mechanism and to the first end of the linkage. The attachment member couples the linkage to the tool. A shaft is secured to the second end of the linkage and includes a second blade clamp mechanism. A distal member is coupled to the power tool and defines a channel through which the shaft extends. The channel defines a first stop surface and a second stop surface. A biasing mechanism is contained within the distal member and supported by one of the first and second stop surfaces. The biasing mechanism biases the shaft in a first position.

COMMUNICATOR, ELECTRIC WORKING MACHINE, AND COMMUNICATION METHOD

A communicator in one aspect of the present disclosure includes a connector, a communication circuit, and a communication controller. The connector is electrically coupled to an electric working machine. The communication circuit performs wireless communication. The communication controller cyclically transmits operational information without specifying a recipient via the communication circuit in response to an operating mode of the communication controller being set to an operation-transmission mode. The operational information indicates an operating state of the electric working machine. 120-. (canceled)21. A battery pack comprising:a battery;a connector configured to be detachably coupled to a tool main body, the tool main body including a motor, the motor being configured to be driven by an electric power supplied from the battery via the connector coupled to the tool main body;a communication circuit configured to wirelessly transmit a notice inputted to the communication circuit; anda communication controller configured to be set to a first mode or a second mode, the communication controller set to the first mode being configured to transmit a first notice via the communication circuit at a first cycle, the first notice including a first type of information, the communication controller set to the second mode being configured to transmit a second notice via the communication circuit at a second cycle, the second notice including a second type of information but excluding the first type of information, and the second cycle being different from the first cycle.22. The battery pack according to claim 21 ,wherein the first type of information indicates whether the electric power is being supplied from the battery to the tool main body.23. The battery pack according to claim 21 ,wherein the second type of information specifies the communication controller or the battery pack.24. The battery pack according to claim 21 ,wherein the first cycle is shorter than the ...

HANDHELD POWER TOOL

A handheld power tool () comprising at least one orientation sensor () is provided. The handheld power tool () is operatively connected to a controller () and said controller () is configured to receive orientation data from the at least one orientation sensor (), wherein the orientation data comprises information associated with an orientation of at least a portion of the handheld power tool () and to determine operational data based on the orientation data, said operational data representing work performed using the handheld power tool (). The operational data is determined by determining the orientation of the power tool based on the received orientation data from the at least one orientation sensor (). 1. A handheld power tool comprising at least one orientation sensor , the handheld power tool being operatively connected to a controller , wherein said controller is configured to:receive orientation data from the at least one orientation sensor, wherein the orientation data comprises information associated with an orientation of at least a portion of the handheld power tool; anddetermine operational data based on the orientation data, said operational data representing work performed using the handheld power tool, wherein operational data is determined by determining the orientation of the handheld power tool based on the received orientation data from the at least one orientation sensor.2. The handheld power tool according to claim 1 , wherein the controller is arranged in a mobile terminal being in wireless communication with the handheld power tool.3. The handheld power tool according to claim 2 , wherein the orientation data is transmitted from the handheld power tool the mobile terminal through a wireless communication interface arranged in the handheld power tool.4. The handheld power tool according to claim 1 , wherein the controller is arranged in the handheld power tool.5. The handheld power tool according to claim 4 , wherein the handheld power tool ...

MACHINE FOR CUTTING NOZZLES OF REACTOR VESSELS

Disclosed herein is a machine for cutting nozzles of reactor vessels. The machine for cutting nozzles of reactor vessels comprises a cutting unit positioned at an upper surface edge of a reactor vessel having a nozzle and having a saw blade part having different contact areas to cut the nozzle, a drive unit providing the saw blade part with rotary power, and a foreign substance suction unit provided at one end of the cutting unit in contiguity with the saw blade part to suck foreign substances generated when the nozzle is cut by the saw blade part, wherein the foreign substance suction unit sucks the foreign substances by approaching an outer peripheral surface of the nozzle when the saw blade part moves in a cutting direction of the nozzle. 1. A machine for cutting nozzles of reactor vessels , comprising:a cutting unit positioned at an upper surface edge of a reactor vessel having a nozzle and having a saw blade part having different contact areas to cut the nozzle;a drive unit providing the saw blade part with rotary power; anda foreign substance suction unit provided at one end of the cutting unit in contiguity with the saw blade part to suck foreign substances generated when the nozzle is cut by the saw blade part,wherein the foreign substance suction unit sucks the foreign substances by approaching an outer peripheral surface of the nozzle when the saw blade part moves in a cutting direction of the nozzle.2. The machine according to claim 1 , wherein the cutting unit comprises:a first frame supported on an upper surface of the reactor vessel;a second frame vertically connected to the first frame while facing outside of the reactor vessel; anda third frame positioned in front of the second frame while comprising pieces facing each other, and the third frame having an opening formed at a lower end thereof in an introduction direction of the nozzle such that the nozzle is inserted into the opening.3. The machine according to claim 2 , wherein the second frame is ...

Dust collector

A dust collector in one aspect of the present invention comprises a dust collection portion, a communication portion, and an interlock operation control portion. When the communication portion receives an interlock command transmitted from an electric working machine, the interlock operation control portion makes the dust collection portion operate interlocking with the electric working machine. The interlock operation control portion includes a storage portion, in which identification information specific to the electric working machine with which the dust collection portion is to be made to perform the interlock operation is stored.

Method for operating a pass-through machine, and pass-through machine

The invention relates to a method for operating a pass-through machine (1), in particular a pass-through machine which is provided for use in the manufacture of furniture and components, and to a pass-through machine. In the method, a supplied workpiece (W) is first detected and/or identified using a workpiece detection device (20); handling information (HI) is then output using an information device (30) on the basis of the detected information of the workpiece detection device (20); whereupon an operator of the pass-through machine (1) carries out a handling process on or with the workpiece (W) according to the output handling information (HI); and the handled workpiece (W) is then supplied to a machining device (50) of the pass-through machine (1) using a supply device (80).

Dust Removal Arrangement for an Engine-Driven Tool

The present disclosure relates to engine-driven tool () comprising a rotatable work tool () and an engine () for propelling a first driving pulley () via a clutch wheel () comprised in a power transferring unit () and having an outer edge. The first driving pulley () and the clutch wheel () arc arranged to rotate around a common driving axis (). The power transferring unit () comprises an endless drive belt () that is arranged propel the rotatable work tool () when the first driving pulley () is propelled. A fan arrangement () is arranged to convey air front a dust channel () formed between a shielding cover () and the rotatable work tool (), and comprises a fan turbine () that is connected to a fan pulley () connected to the drive belt () is arranged to propel the fan pulley (). A first overlap line () extends along the outer edge () of the clutch wheel (), perpendicular to the extension of the common driving axis (), the first overlap line () further extending via the fan turbine (). 1. An engine-driven tool comprising a rotatable work tool , having a center and a circumference , and an engine that is arranged to propel the rotatable work tool , wherein the engine-driven tool further comprises a shielding cover that is arranged to shield a part of the rotatable work tool , and a first swiveling part that is attached by a first swivel attachment and partly extends either inside or outside the shielding cover , allowing the first swiveling part to pivot around a first swivel axis that crosses the rotatable work tool closer to the center of the rotatable work tool than the circumference of the rotatable work tool , wherein the engine-driven tool comprises a second swiveling part that is attached to the first swiveling part and partly extends either inside or outside the first swiveling part , wherein the second swiveling part is attached to the first swiveling part by a second swivel attachment , allowing the second swiveling part to pivot around a second swivel axis ...

ELECTRIC WORKING MACHINE

An electric working machine in one aspect of the present disclosure includes: a motor; a driver to drive the motor; a first control circuit; and a second control circuit. The first control circuit controls the driver such that the motor rotates in a set rotation direction. The second control circuit is provided separately from the first control circuit. The second control circuit detects a rotation direction of the motor and performs an abnormality handling process to stop rotation of the motor in response to a situation where the detected rotation direction is reverse to the set rotation direction. 110-. (canceled)11. An electric working machine comprising:a trigger switch;a saw blade;a motor configured to drive the saw blade;a drive circuit configured to drive the motor by electric power supplied from a battery in response to turning ON of the trigger switch;a first control circuit configured to control the drive circuit such that the motor rotates in a set rotation direction; anda second control circuit provided separately from the first control circuit, the second control circuit being configured to detect a rotation direction of the motor, and the second control circuit being configured to perform an abnormality handling process to stop rotation of the motor in response to a situation where the rotation direction detected by the second control circuit is reverse to the set rotation direction.12. An electric working machine comprising:a motor;a driver configured to drive the motor by electric power supplied from a power source;a first control circuit configured to control the driver such that the motor rotates in a set rotation direction; anda second control circuit provided separately from the first control circuit, the second control circuit being configured to detect a rotation direction of the motor, and the second control circuit being configured to perform an abnormality handling process to stop rotation of the motor in response to a situation where the ...

Power Tool Including an Accessory

A power tool includes a motor, a foot plate, a detent system, and an accessory. The motor is configured to move a saw blade in a repeating pattern of movement. The foot plate defines a saw blade opening and includes a guide surface that defines a storage space. The detent system is supported by the foot plate and has a detent member. The accessory defines (i) a first detent structure configured to receive the detent member therein, and (ii) a second detent structure configured to receive the detent member therein. The accessory is positionable between (i) a use position in which the accessory is spaced apart from the foot plate, and (ii) a storage position in which the accessory is located in the storage space.

Safety Detection and Protection System for Power Tools

A detection system for detecting a dangerous condition for an operator using a power tool of the type which has an exposed blade relative to a work surface and a protection system for minimizing, if not eliminating the possibility of a user being injured by contacting the blade. In one preferred embodiment of the present invention, a proximity detection system is capable of detecting the presence of a user near the blade of a table saw and a protection system that can either retract the blade below the work surface of the table saw or terminate the drive torque to the blade which can result in rapid stopping of the saw blade by a work piece that is being cut. 1. A table saw comprising:a frame structure with a generally flat work surface;a rotatable circular blade mounted on an arbor and being adapted to have at least a portion of said blade extending above the flat work surface in position to cut a work piece;a drive motor with an output shaft mounted to the frame structure for powering the saw blade;a sensing mechanism for generating at least a first actuation signal responsive to predetermined sensed characteristics relating to the existence and/or movement of a person in close proximity thereto;a retracting mechanism located beneath said work surface for rapidly moving the blade downwardly below the work surface responsive to said first actuation signal being received.2. A table saw as defined in wherein said retracting mechanism comprises:an arm structure that has a first pulley operatively coupled to said arbor, a second pulley operatively coupled to said output shaft of said drive motor and a flexible belt coupling said first and second pulleys, said arm structure pivoting about an axis concentric with said output shaft so that the tension in said belt is relatively constant regardless of the position of the blade relative to said work surface; andan actuator connected to said frame structure and said arm structure for rapidly moving said arm structure to ...

CIRCULAR SAW DUST COLLECTION SHROUD

A shroud for circular saws is provided. The shroud attaches to the shoe of a circular saw and includes a blade opening to allow the saw blade to pass through the shroud. Dust is collected from the front and back of the blade and directed to a vacuum through an internal plenum. The shroud may include vertical hoods which extend up from the front and back of the blade opening and cooperate with the circular saw blade guard to capture dust and debris. The bottom of the shroud may include wheels to assist in using the shroud and saw. 1. A shroud for a circular saw comprising:an upper plate having an upper surface which is attachable to a lower surface of a circular saw shoe;a lower plate attached to a bottom of the upper plate, the lower plate having a lower surface which is placed adjacent a surface of a material for cutting the material;an air flow plenum located between the upper plate and the lower plate;a blade opening in the shroud, the blade opening extending through the upper plate and the lower plate to allow a circular saw blade to pass through the blade opening and cut a material;an exhaust port attached to the shroud, the exhaust port having a bore which is open to the plenum;a front dust collection opening located at a front end of the blade opening, the front dust collection opening being connected to the plenum such that air is drawn from the front of the blade opening, through the front opening, into the plenum, and out the exhaust port by a vacuum source.2. The shroud of claim 1 , further comprising a rear dust collection opening which is located at a rear end of the blade opening and which is connected to the plenum such that air is drawn through the rear dust collection opening claim 1 , into the plenum claim 1 , and out the exhaust port.3. The shroud of claim 2 , wherein the front dust collection opening is larger than the rear dust collection opening.4. The shroud of claim 2 , wherein the front dust collection opening is between about 4 times and ...

MULTIFUNCTIONAL SAW APPARATUS AND METHOD

A multiple function saw includes a base including an arm selectively movable with respect to the base, the arm being selectively rotatable about a first arm axis at a first end of the arm, towards and away from a substantially planar top surface of the base. A saw having a housing is coupled to the arm at a second end of the arm. The multiple function saw is adjustable to operate in multiple different modes including a first mode with the arm being selectively rotatable about the first arm axis, a second mode with the arm being constrained from rotating about the first arm axis, the arm being substantially stationary with respect to the base, wherein the saw is pivotable about a vertical axis at the second end of the arm such that a face of a saw blade is positionable to operate as a table saw, and a third mode with the saw being moveable horizontally along the base to operate as a radial saw. 1. An apparatus comprising:a base including an arm selectively movable with respect to the base, the arm being selectively rotatable about a first arm axis at a first end of the arm, towards and away from a substantially planar top surface of the base; and a first mode with the arm being selectively rotatable about the first arm axis;', 'a second mode with the arm being constrained from rotating about the first arm axis, the arm being substantially stationary with respect to the base, wherein the saw is pivotable about a vertical axis at the second end of the arm such that a face of a saw blade is positionable to operate as a table saw; and', 'a third mode with the saw being moveable horizontally along the base to operate as a radial saw., 'a saw having a housing coupled to the arm at a second end of the arm, wherein the apparatus includes2. The apparatus of claim 1 , wherein the saw blade is pivotable with respect to the arm between a first position and a second position to perform bevel cuts.3. The apparatus of claim 1 , wherein the first mode includes a miter saw mode.4. ...

A FASTENING DEVICE AND SYSTEM

A functional unit, in particular for a tool, a tool accessory and/or a lighting apparatus, that includes a housing, a suction region, which is arranged on the housing and with which the fastening apparatus can be fastened releasably to a substrate, and an electrically operated negative-pressure unit, which is arranged in the housing and to provide a negative pressure in the suction region. The fastening apparatus also includes at least one fastening interface for fastening the functional unit. Alternatively, or additionally, the fastening apparatus includes the functional unit. The functional unit includes a guide device, in particular a guide rail, a router guide, a routing template, a rolling guide rail, a drilling apparatus, a lamp and/or a grazing light. 1. A fastening device for a function unit , in particular for a tool , a tool accessory and/or an illumination device comprising:a housing,a suction region which is arranged on the housing at the outside and with which the fastening device can be releasably fastened to an underlay, andan electrically operated vacuum unit which is arranged in the housing and which is designed to provide a vacuum in the suction region, whereinthe fastening device further comprises at least one fastening interface for fastening the function unit and/or the comprises the function unit, and the function unit comprises a guide device, in particular a guide rail, a router guide, a milling template, a roll guide rail, a drilling device, a lamp and/or a strip light.2. The fastening device according to claim 1 , wherein the fastening interface is aligned in the same direction as the suction region.3. The fastening device according to claim 1 , wherein the fastening interface is designed to hold claim 1 , in particular to clamp claim 1 , the function unit in a position in which the function unit is laid on the underlay claim 1 , in a state in which the fastening device is fastened to the underlay.4. The fastening device according to claim ...

CONSTRUCTION SITE DEVICE FOR DETERMINING THE PRESENCE OF A DENSITY GRADIENT IN A WORKING MATERIAL

A construction site status monitoring device is provided including processing circuitry configured to receive sensor data from a sensor associated with a construction device including a working element, determine a presence of a density gradient in a working material based on the sensor data, and cause an automatic response relative to operation of he working element based on the determination of the presence of the density gradient. 1. A construction site status monitoring device comprising processing circuitry configured to:receive sensor data from a sensor associated with a construction device comprising a working element;determine a presence of a density gradient in a working material based on the sensor data; andcause an automatic response relative to operation of the working element based on the determination of the presence of the density gradient.2. The construction site status monitoring device of claim 1 , wherein the processing circuitry is further configured to:compare the sensor data to a predetermined material threshold, andwherein determining the presence of the density gradient in the working material is based on the comparison of the sensor data to the predetermined material threshold.3. The construction site status monitoring device of claim 1 , wherein the automatic response comprises causing an indicator associated with the construction device to be actuated.4. The construction site status monitoring device of claim 3 , wherein the indicator comprises a light associated with construction device.5. The construction site status monitoring device of claim 3 , wherein the indicator comprises a plurality of status lights claim 3 , wherein the plurality of status lights are actuated based on the determination of the presence of the density gradient.6. The construction site status monitoring device of claim 3 , wherein the processing circuitry is further configured to:generate a material density map based on the determination of the presence of the ...

Power equipment with detection and reaction systems

Woodworking machines and safety methods for use with those machines are disclosed. The machines include a detection system adapted to detect one or more dangerous conditions and a reaction system associated with the detection system. The reaction system can include an explosive to trigger the system, and also can be configured to retract a cutting tool at least partially away from a cutting region upon detection of a dangerous condition by the detection system.

MOVEMENT CONTROL OF MATERIAL REMOVAL SYSTEMS

Systems, and/or methods for movement control of material removal systems and/or assemblies are disclosed, such as saws, grinders, polishers, and/or more general material preparation and/or testing machines, for example. A material removal system may include a material removal machine that is configured to move at the urging of one or more actuators. The system may further include control circuitry configured to control movement (and/or speed, acceleration, etc.) of the material removal assembly (e.g., via the actuators) based on one or more power, thermal, position, and/or other parameters that indicate whether the material removal tool is in contact with a sample. 1. A material removal system , comprising:a material removal machine comprising a material removal tool;a drive assembly configured to move the material removal tool towards or away from a sample; andcontrol circuitry configured to adjust movement of the material removal machine via the drive assembly based on a parameter of the material removal machine, wherein the parameter comprises one or more of a power parameter, a position parameter, and a thermal parameter.2. The system of claim 1 , wherein the power parameter comprises a power related to actuation of the material removal tool claim 1 , the thermal parameter comprises thermal energy produced through actuation of the material removal tool claim 1 , and the spatial parameter comprises one or more of a position of the material removal tool relative to the sample and a speed of the material removal tool.3. The system of claim 1 , wherein the control circuitry is configured to move the material removal tool in a first mode when the parameter claim 1 , or a change in the parameter claim 1 , is below a threshold claim 1 , and in a second mode when the parameter claim 1 , or a change in the parameter claim 1 , is above the threshold.4. The system of claim 3 , wherein the control circuitry is configured to move the material removal tool at a first speed in ...

Woodworking Table Saw with Vacuuming Function

The present invention disclosed a woodworking table saw with self vacuuming function, comprising: a worktable and a saw blade, the worktable being provided with a saw slot through which the saw blade is extended, a blade guard being disposed on the saw slot, a riving knife being disposed adjacent to a side of the saw blade, and a riving knife holder being provided for holding the riving knife, wherein the woodworking table saw further has a closed box, an eccentric motor, a vacuuming air box and a dust bag, the closed box is hung beneath the worktable by lugs disposed under two sides of the worktable, the eccentric motor is fixed at a side of the closed box, the eccentric motor is provided with an eccentric shaft which has one end coupling to the saw blade and the other end coupling to a central shaft of the vacuuming air box via a belt, a fan blade is fixed on the central shaft, an air inlet of the vacuuming air box is in communication with a dust outlet of the closed box and an air outlet of the vacuuming air box is in communication with the dust bag. The woodworking table saw with self vacuuming function of the present invention, wherein the vacuuming air box and a saw blade are synchronously turned on and turned off, so that it is able to achieve the purpose of collecting the sawdust and dust produced during working, and maintaining the sawdust and dust within a closed environment to keep them from leaking and causing pollution. The woodworking table saw with a self vacuuming function of the present invention is with a compact structure to only require a small space and is with high portability. 1. A woodworking table saw with self vacuuming function , comprising: a worktable and a saw blade , the worktable being provided with a saw slot through which the saw blade is extended , a blade guard being disposed on the saw slot , a riving knife being disposed adjacent to a side of the saw blade , and a riving knife holder being provided for holding the riving knife , ...

MITER SAW

A miter saw includes a base assembly and a saw unit pivotably coupled to the base assembly. The saw unit includes a saw blade and an upper blade guard covering an upper portion of the saw blade. The miter saw also includes a cut line indicator coupled to the upper blade guard. The cut line indicator includes a light source, a cover positioned between the saw blade and the light source, a housing in which the light source is positioned, a rib coupled to one of the cover or the housing, and a first slot defined in the other of the cover or the housing. The cover includes a second slot through which light from the light source passes to illuminate opposite sides of the saw blade and a work piece supported upon the base assembly, thereby casting a shadow of the saw blade onto the work piece. The rib is receivable within the first slot to align the second slot with the saw blade. 120-. (canceled)21. A miter saw comprising:a base assembly;a saw unit pivotably coupled to the base assembly, the saw unit including a saw blade and an upper blade guard covering an upper portion of the saw blade; and a light source,', 'a cover positioned between the saw blade and the light source,', 'a housing in which the light source is positioned,', 'a rib coupled to one of the cover or the housing, and', 'a first slot defined in the other of the cover or the housing;, 'a cut line indicator coupled to the upper blade guard, the cut line indicator including'}wherein the cover includes a second slot through which light from the light source passes to illuminate opposite sides of the saw blade and a work piece supported upon the base assembly, thereby casting a shadow of the saw blade onto the work piece, and wherein the rib is receivable within the first slot to align the second slot with the saw blade.22. The miter saw of claim 21 , wherein the cover is opaque.23. (canceled)24. The miter saw of claim 21 , wherein the housing includes an aperture in which the cover is received.25. The miter ...

MULTI-FUNCTIONAL POWER TOOL SYSTEM

A benchtop tool system having a broad variety of interchangeable heads and types of tools. Each interchangeable head can be a tool having a common attachment interface. The interchangeable tools can be engaged to and driven by a base unit which can be supported by a support arm. The support arm can be movable to configure the orientation of a tool to a desired position. The benchtop tool system can have a detachable stand which allows the benchtop tool system to be used in a variety of operating environments. 1. A benchtop tool system , comprising:a platform configured to support a workpiece;at least one rail having a base unit slidably mounted on the at least one rail, said base unit including a motor and a connection section;a tool head which is a removable tool head and is connected to the base unit at the connection section.2. The benchtop tool system of claim 1 , wherein the tool head comprises an attachment interface receivable in the connection section.3. The benchtop tool system of claim 2 , wherein the connection section includes a first rotatable coupler drivable by the motor and the attachment interface is configured to allow passage of a second rotatable coupler coupleable to the first rotatable coupler.4. The benchtop tool system of claim 2 , wherein one of the attachment interface and the connection section comprises a projection and the other of the attachment interface and the connection section comprises an opening; andwherein the projection and the opening are moveable with respect to one another from a first position in which the projection and the opening are aligned to a second position in which the projection and the opening are offset with respect to one another.5. The benchtop tool system of claim 4 , wherein when in the first position claim 4 , the projection may pass through the opening so that the tool head can be moved towards or away from the base unit.6. The benchtop tool system of claim 4 , wherein when in the first position claim 4 , ...

IMPROVED POWER TOOL

A power tool (), such as a chainsaw, comprising means () for driving said power tool () and a controller (). The power tool comprises a movement sensor () and the controller () is configured to receive a signal from said movement sensor (), determine if said signal is a signal indicating a movement, determine a time wherein no signal indicating a movement is received, determine if said time exceeds a time period, and if so, disable said driving means (). 1. A power tool comprising driving means for driving said power tool and a controller , said power tool being characterized in that said power tool further comprises a movement sensor and the controller being configured to:receive a signal indicating a movement from said movement sensor;determine a time wherein no signal indicating movement is received;determine if said time exceeds a time period, and if so,disable said driving means.2. The power tool according to claim 1 , wherein the controller is further configured to receive a reactivation signal and in response thereto enable said driving means for being activated.3. The power tool according to claim 1 , wherein the controller is further configured to disable said driving means by switching off said power tool.4. The power tool according to claim 1 , wherein the signal indicating a movement indicates a vibration.5. The power tool according to claim 1 , wherein the controller is further configured to determine a time of day and determine if said time of day is within working hours and claim 1 , if so claim 1 , adapt said time period.6. The power tool according to claim 2 , wherein the reactivation signal is received from an on/off switch.7. The power tool according to claim 2 , wherein the reactivation signal is received from a push/release switch.8. The power tool according to claim 2 , wherein the reactivation signal is received from a disabling switch.9. The power tool according to claim 1 , wherein the power tool is a chainsaw.10. The power tool according to ...

NON-CONTACT TEMPERATURE SENSOR FOR SAW GUIDES

A saw guide for a saw arbor guide assembly comprises a head, a body, a pad, and one or more temperatures sensors. The saw guide comprises one or more sensor channels extending between first and second faces thereof. The pad extends across at least one of the first and second faces, and the pad comprises one or more pad channels. The pad faces a corresponding saw blade. Each of the temperature sensors is located within one of the sensor channels. In addition, each of the temperature sensors comprises a sensor body, a tip, and a thermocouple. The tip extends from the sensor body and is adapted to extend, at least partially, through one of the pad channels and be spaced apart from the corresponding saw blade. The thermocouple is enclosed within the tip, with the thermocouple configured to measure changes in temperature of the corresponding saw blade. 1. A saw guide for a saw arbor guide assembly with one or more arbors , one or more guide posts , and a plurality of saw blades arranged on the one or more arbors , the saw guide comprising:a head adapted to attach to one of the one or more guide posts;{'claim-text': ['first and second faces; and', 'one or more sensor channels extending between the first and second faces;'], '#text': 'a body extending from the head, the body comprising:'}a pad extending across at least one of the first and second faces, wherein the pad comprises one or more pad channels and wherein the pad faces a corresponding one of the plurality of saw blades; and{'claim-text': ['a sensor body;', 'a tip extending from the sensor body, the tip adapted to extend, at least partially, through one of the pad channels and be spaced apart from the corresponding one of the plurality of saw blades; and', 'a thermocouple enclosed within the tip, the thermocouple configured to measure changes in temperature of the corresponding one of the plurality of saw blades.'], '#text': 'one or more temperature sensors, wherein each of the one or more temperature sensors is ...

IMPELLER ASSEMBLY AND CUTTING EQUIPMENT PROVIDED WITH IMPELLER ASSEMBLY

The present invention provides an impeller assembly and cutting equipment provided with the impeller assembly. Compared with cutting equipment for an external dust cleaner in the prior art, the present invention has a dust suction function and a dust collection function itself, is more convenient to operate in no need of cooperating with an external vacuum cleaner, and thus is applied more widely and not limited by working conditions. By reasonably setting a curvature of each first vane, a first impeller which is in rotation can suck a radial movement of surrounding air along a motor. The first impeller is disposed in the cutting equipment for forming a negative pressure in the cutting equipment, thereby realizing a dust suction function of the cutting equipment. A heat dissipation area of a rotor can be increased by providing a plurality of second impellers on a second impeller, thereby achieving a heat dissipation function of the rotor. 1. An impeller assembly , which is provided on a rotor , wherein the impeller assembly comprises a first impeller and a second impeller; the rotor sequentially passes through the center of the first impeller and the center of the second impeller and is fixedly connected to the first impeller and the second impeller; a plurality of first vanes is convexly provided on the first impeller , and arranged in a circumferential direction of the rotor; a plurality of second vanes is provided on the second impeller and arranged in a circumferential direction of the rotor;each first vane comprises an inner vane segment and an outer vane segment that are connected, wherein a distance from a protrusion on the first impeller to the first impeller is a height of the vane, and a vane height of the outer vane segment is greater than a vane height of the inner vane segment; andwhen the rotor rotates, the first impeller sucks a radial circulation of ambient air along the rotor, and a contact area between the rotor and air is increased by the ...

SYSTEMS AND METHODS FOR HEAT MANAGEMENT USING SPEED CONTROL FOR A POWER TOOL

A power tool and method for heat management using speed control. The power tool includes a housing, a motor within the housing, and an electronic processor coupled to the motor. The electronic processor is configured to operate the motor at a first speed corresponding and determine whether the power tool has been unloaded for a predetermined amount of time during which the motor has been operated at the first speed. In response to determining that the motor has been unloaded for the predetermined amount of time, the electronic processor operates the motor at a second speed lower than the first speed. The electronic processor further determines whether the power tool is loaded while operating the motor at the second speed and operates the motor at the first speed in response to determining that the motor is loaded. 1. A power tool comprising:a housing;a motor within the housing;a variable speed dial moveable between a plurality of positions to select an operating speed of the motor; and operate the motor at a first speed corresponding to a speed selected by the variable speed dial,', 'determine whether the power tool has been unloaded for a predetermined amount of time during which the motor has been operated at the first speed,', 'in response to determining that the motor has been unloaded for the predetermined amount of time, operate the motor at a second speed lower than the first speed,', 'determine whether the power tool is loaded while operating the motor at the second speed, and', 'in response to determining that the motor is loaded, operate the motor at the first speed., 'an electronic controller coupled to the motor and the variable speed dial and configured to2. The power tool of claim 1 , wherein the predetermined amount of time is at least 1 minute.3. The power tool of claim 1 , wherein the electronic processor is further configured to:determine whether the power tool has been unloaded continuously for the duration of the predetermined amount of time, ...

POWER TOOL ANGLE ASSIST

Power tool methods and systems are provided for aligning a power tool to implement an angled cut in a workpiece. The power tool includes a first distance sensor and a second distance sensor. The power tool measures a first distance to the workpiece with the first distance sensor and a second distance to the workpiece with the second distance sensor. The power tool calculates an angle between the power tool and the workpiece based on the first and second distances, and indicates the angle via an angle output indicator of the power tool. The power tool may measure an angle between the power tool and the workpiece using a proximate edge and a distal edge of the workpiece, and indicate whether the power tool maintains a correct angle as it traverses a cut through the workpiece from the proximate edge to the distal edge. 1. A power tool for implementing an angled cut , the power tool comprising:a housing;a first distance sensor supported by the housing;a second distance sensor supported by the housing;an angle output indicator; and measure a first distance to a workpiece with the first distance sensor of the power tool;', 'measure a second distance to the workpiece with the second distance sensor of the power tool;', 'determine a first angle between the power tool and the workpiece based on the first distance to the workpiece and the second distance to the workpiece; and', 'indicate the first angle between the power tool and the workpiece via the angle output indicator of the power tool., 'a controller supported by the housing and including an electronic processor and a memory storing instructions that when executed by the electronic processor configure the controller to2. The power tool of claim 1 , wherein the first distance sensor and the second distance sensor are disposed substantially parallel to each other and at a known distance apart in the power tool.3. The power tool of claim 1 , wherein the first distance sensor and the second distance sensor are ...

Log and cant optimization

Embodiments provide methods, apparatuses, and systems for cutting wood workpieces, such as logs and cants, into desired products. In various embodiments, after a log is chipped into a cant, the cant may be scanned and re-optimized based on the new scan data and information about the source log, such as simulated orientation parameters, a 3D model, and/or potential cut solutions. In other embodiments, data from multiple sensor types may be used in combination to detect splits in logs, cants, or both. Optionally, re-optimization and split detection techniques may be used in combination to improve wood volume recovery, value, and/or throughput speed.

SAFETY SYSTEM FOR A MACHINE TOOL

A safety system is provided for a machine tool, having a tool, having a clamping device, arranged movably on a frame of the machine tool, for the tool. The clamping device is movable by a movement device from a working position, in which the tool can be used for working and in which the tool poses a risk of injury to a user, into a safety position, in which the tool poses substantially no risk of injury to the user. The movement device has at least two equally or oppositely magnetized and/or magnetizable magnetic means, of which at least a first magnetic means is connected to or arranged on the tool and at least one second magnetic means is connected to or arranged on the frame, such that the movement of the tool by the movement device from the working position into the safety position can be triggered and/or at least partially performed by magnetic force. 1. A safety system for a machine tool having a tool , a clamping device arranged moveably on a frame of the machine tool for the tool , wherein the clamping device is moveable by a motion device from a working position , in which the tool can be used for working and entails a risk of injury to a user by the tool , into a safety position in which there is substantially no risk of injury to the user by the tool , whereinthe motion device has at least two equally or oppositely magnetized and/or magnetizable magnetic means, of which at least a first magnetic means is connected to the tool or is arranged thereon and at least a second magnetic means is connected to the frame or arranged thereon, so that the movement of the tool by the motion device out of the working position into the safety position can be triggered and/or at least partially implemented by means of magnetic force.2. The safety system as set forth in wherein the motion device has a holding device by which the tool is held in the working position by a holding force.3. The safety system as set forth in claim 2 , wherein the holding force is applied at ...

Adjustment and Control Features for a Power Tool

Improvements to a table saw include a system for automatically adjusting the height of the cutting blade in relation to the height of the workpiece, a system for providing fine adjustment of the height or bevel angle of the saw blade or work surface, and a system for automatic speed control and shut-off for the saw blade.