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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 6806. Отображено 100.
26-01-2012 дата публикации

Sealing arrangement in rotating control valve of pressure fluid-operated percussion device

Номер: US20120018657A1
Автор: Juha Piispanen, MARKKU Keskiniva, Mauri Esko
Принадлежит: SANDVIK MINING AND CONSTRUCTION OY

The invention relates to a sealing arrangement in a rotating control valve of a pressure fluid-operated percussion device, to which percussion device a tool is mountable movable in its longitudinal direction, the percussion device containing a work chamber and a transmission piston mounted movable to compress the tool suddenly to generate a stress pulse to the tool, inlet and outlet channels for conducting pressure fluid to the percussion device and away from it, and a control valve having a rotating switch member with channels to connect inlet and outlet channels through the channels of the switch member to alternately conduct the pressure fluid through the channels to the work chamber and, correspondingly, away from the work chamber, and in the inlet channel of the pressure fluid at the switch member side end thereof at least one sealing sleeve for the purpose of sealing the inlet channel to the switch member. In the arrangement, the sealing sleeve is mounted obliquely to the surface of the switch member and the switch member side surface of the sealing sleeve is essentially in the shape of the switch member surface.

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Номер записи: 1
02-02-2012 дата публикации

Impact tool

Номер: US20120024555A1
Автор: Hikaru Kamegai, Masanori Furusawa, Yoshio Sugiyama
Принадлежит: Makita Corp

Representative impact tool according to the invention includes a reaction force transmitting member 161 that receives a striking reaction force caused when a tool bit 119 strikes a workpiece, a first elastic member 163 that biases the reaction force transmitting member 161 forward, and a second elastic member 171 that is pushed by the reaction force transmitting member 161 and compressively deforms, thereby cushioning the striking reaction force, when the reaction force transmitting member 161 moves rearward by receiving the striking reaction force. When a user presses the tool bit 119 against the workpiece, the reaction force transmitting member 161 is pushed by the tool bit 119 and compresses the first elastic member 163, and also comes in contact with the second elastic member 171 in an incompressible state, so that the reaction force transmitting member 161 is placed in a predetermined working position in the longitudinal direction, and when the reaction force transmitting member receives the striking reaction force in the working position, the reaction force transmitting member moves rearward in the axial direction of the tool bit and compressively deforms the second elastic member 171, thereby cushioning the striking reaction force.

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Номер записи: 2
16-02-2012 дата публикации

Tool holder

Номер: US20120038119A1
Автор: Alexander Buchenau, Matthias Keith, Olaf Koch, Stefan Hammerstingl, Uto Plank
Принадлежит: Hilti AG

The tool holder according to the invention for a chipping hammer has a tool receptacle for receiving a tool and a tool securing device for securing the tool in the tool receptacle. The tool securing device provides a shaft having an eccentrically arranged mandrel and at least one end piece and a bar having at least one eye in which the end piece engages in a form-fitting manner. The tool securing device is pivotable into at least one first position for inserting and removing the tool and into at least one second position for securing the tool. The eye has a non-circular cross-section.

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Номер записи: 3
08-03-2012 дата публикации

Hand-held demolition tool

Номер: US20120055688A1
Автор: Daniel Gustafsson, Olof Ostensson, Per Gustafsson
Принадлежит: Individual

The invention relates to a hand-held demolition tool ( 1 ) comprising a cylinder ( 2 ), a rear handle ( 6 ) and a flexible coupling ( 4 ) for the flexible connection of the cylinder ( 2 ) and the rear handle ( 6 ). According to the invention, the flexibility of the coupling ( 4 ) is arranged such that it allows flexibility only in the property pivot action between the cylinder ( 2 ) and the rear handle ( 6 ) around a rigid theoretical axis ( 9 ).

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Номер записи: 4
21-06-2012 дата публикации

Hand tool impacting apparatus and method

Номер: US20120152577A1
Автор: Christopher Mattson, David Christensen, Jacob Morrise, Jake Allred, Jeremy Alsup, Jon Ward, Travis Anderson
Принадлежит: BRIGHAM YOUNG UNIVERSITY

A hand tool impacting device may include, a drive shaft with an aperture, an impaler disk, and a floating pin positioned within the aperture of the drive shaft. A set of circular ramps on the outer edge of the impaler disk may interact with a stationary pin insert to translate the drive shaft and create an impacting motion. A pair of springs placed against either side of the floating pin may allow a specialized tool bit to engage or disengage the impaler disk, thereby allowing selective use of translational impacting motion, or rotational torque. An impact bit for engaging the impaler disk may include, a tool head configured to engage a work piece and a tool shaft configured to be inserted into a hollow drive shaft to engage a floating pin. According to one embodiment, the impact bit includes a number of sleeves to guide the tool head during operation.

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Номер записи: 5
05-07-2012 дата публикации

Hand-held power tool

Номер: US20120168191A1
Автор: Heiko Roehm, Joachim Hecht, Tobias Herr
Принадлежит: ROBERT BOSCH GMBH

A hand-held power tool, in particular an impact drill driver, has a gearbox assemblage, a hammer impact mechanism, and a tool spindle. The hammer impact mechanism includes a striker that at least partly surrounds the tool spindle in at least one plane.

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Номер записи: 6
02-08-2012 дата публикации

Transmission device

Номер: US20120193116A1
Автор: Andre Ullrich, Tobias Herr
Принадлежит: ROBERT BOSCH GMBH

The invention relates to a gearbox device, in particular, for a hammer drill or chisel, with a torque transmission mechanism, which has a first torque transmitting region for transmission of a torque to a first component and at least one second torque transmitting region for transmitting a torque to a second component. According to the invention, the first torque transmitting region and the second torque transmitting region at least partly have a corresponding partial contour for transmitting the torques.

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Номер записи: 7
06-09-2012 дата публикации

Proportional pilot-controlled pneumatic control system for pneumatically powered hand-held tools

Номер: US20120222762A1
Автор: Donald J. Glaser, Kevin M. James, Lon C. Tidwell
Принадлежит: Glendo Corp

A control system for use in conjunction with a primary power system and operable to control a pneumatically powered hand-held tool broadly comprises an air delivery assembly operable to communicate with a pressurized air source; a control assembly including an exhaust line from the primary power system and to the control assembly, a spool valve in fluid communication with the supply line and the exhaust line, and a control line in fluid communication with the spool valve and the hand-held tool; a tool assembly comprising the hand-held tool for performing delicate hand working operations; and a housing for at least partial storage of the air delivery assembly and the control assembly. The primary power system and the control system operate in conjunction with each other to both power and precisely control a pneumatically powered hand-held tool.

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Номер записи: 8
11-10-2012 дата публикации

Striking tool

Номер: US20120255752A1
Автор: Yonosuke Aoki
Принадлежит: Makita Corp

A striking tool comprises a tool body; a motor housed in the tool body; striking action drive mechanisms which are driven by the motor and strike a tool bit; a rotational drive mechanism which is driven by the motor and causes the tool bit to rotate; an operating mode switching member which switches between a first operating mode wherein the tool bit performs the striking operation and a second operating mode wherein the tool bit performs rotational operation at a minimum; and a clutch which transmits and cuts off torque between the motor and the rotational drive mechanism. The striking tool is capable of switching between operation modes while preventing excessive reaction torque from acting on the tool body.

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Номер записи: 9
11-10-2012 дата публикации

Power tool

Номер: US20120255756A1
Автор: Yonosuke Aoki
Принадлежит: Makita Corp

Provided is a power tool which is capable of more reliably detecting excessive reaction torque acting on a tool body. More specifically, provided is a handheld power tool which causes a tip tool to rotate so as to carry out a predetermined machining operation, the handheld power tool comprising a tool body, a motor which is housed in the tool body and causes the tip tool to rotate, a first sensor which detects the torque state of the tip tool, a second sensor which detects the motion state of the tool body, and a torque cut-off mechanism which cuts off the transmission of torque between the motor and the tip tool. The torque cut-off mechanism is configured to cut off the transmission of torque on the condition that the first sensor and the second sensor respectively detect a preset threshold value for the first sensor and the second sensor.

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Номер записи: 10
03-01-2013 дата публикации

Impact tool

Номер: US20130000937A1
Автор: Hitoshi Iida, Kiyonobu Yoshikane, Shinji Onoda
Принадлежит: Makita Corp

An impact tool in which a tool body can be effectively reduced in size is provided. The impact tool has a motor 111 , a swinging member 129 that is driven by the motor 111 and swings in the axial direction of the tool bit, a striking mechanism 115 that is driven by components of linear motion in the axial direction of the tool bit in the swinging motion of the swinging member 129 , a connecting part 124 that connects the swinging member 129 and the striking mechanism 115 , a housing member 151 that houses at least the connecting part 124 in an internal space 156 , and a counter weight 155 that is disposed within the internal space 156 of the housing member 151 and reduces vibration caused when the tool bit is driven.

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Номер записи: 11
10-01-2013 дата публикации

Sliding hammer pull bar

Номер: US20130008290A1
Автор: Fernando Bugallo, Roberto Cid
Принадлежит: Individual

A tool for the installation of wood flooring, or any other flooring that has a tongue and grove design, and where space is limited for the use of larger tools. A Slide Hammer Pull Bar has a lower and upper section designed in such a manner that will not damage flooring boards when it is used to tap the boards into place. The invention includes a base lower section that has a sliding track, and a weighted hammer upper section, movable along the slide base track of the lower section. With a lower vertical extension in contact with a board, the hammer is moved into contact with the solid end of the lower section in a vigorous manner to drive the board into place. The invention is designed and configured so as to allow the unit to be positioned in tight spaces between the boards and any surrounding walls.

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Номер записи: 12
17-01-2013 дата публикации

Motor mount for a power tool

Номер: US20130014968A1
Автор: Benjamin Ludy, Michael Naughton, Sean T. KEHOE, Troy C. Thorson
Принадлежит: Milwaukee Electric Tool Corp

A power tool includes a motor having a can and a shaft extending axially from the can, a gear case having an inner surface that defines an opening, a bearing positioned around a portion of the shaft that extends from the can and at least partially within the opening in the gear case, and a motor mount coupled to the motor. The motor mount includes a flange extending away from the motor. The flange of the motor mount and the inner surface of the gear case axially and laterally locate the motor and the gear case on the bearing.

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Номер записи: 13
31-01-2013 дата публикации

Drilling Device

Номер: US20130028674A1
Автор: Kazutaka Iwata, Satoshi Abe, Takahiro Okubo
Принадлежит: HITACHI KOKI CO LTD

A drilling device drilling to a desired depth without a gauge. The drilling device includes a distance sensor positioned on an imaginary line spanning between a front end of the housing and a hand gripped portion. The distance sensor is away form a front end of a gear housing by a distance Ls. The distance sensor provides an effective measurement range. The relationship of L 1 ≦Ls and Ls+Lb≦L 2 is satisfied where L 1 represents a distance between the distance sensor and a point closest to the distance sensor and defining a lower limit of the effective measurement range, L 2 represents a distance between the distance sensor and a point farthest from the distance sensor and defining an upper limit of the effective measurement range, and Lb represents a distance between the front end of the housing and a tip end of the end bit.

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Номер записи: 14
14-02-2013 дата публикации

Hammer with leverage no. ii

Номер: US20130037767A1
Автор: Charles M. Phillips, Sr., Glenn R. Snyder, Mark P. Noah
Принадлежит: Penn United Technologies Inc

A hand tool includes an elongated plunger assembly and a locking assembly. The locking assembly has a catch assembly with a release actuator. The release actuator is movable in a direction generally not aligned with the tool head plane of motion. The locking assembly catch member is structured to engage the plunger assembly body and maintain the plunger assembly body in a selected position. When the plunger assembly body is disposed within the tool head and a user desires to extend the plunger assembly, the user actuates the release actuator thereby removing the engagement of the catch member and allowing a socket spring to move the plunger assembly body to the extended position.

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Номер записи: 15
27-06-2013 дата публикации

Hand-held tool device

Номер: US20130161042A1
Автор: Heiko Roehm, Jens Blum, Tobias Herr
Принадлежит: ROBERT BOSCH GMBH

A hand-held tool device having at least one operating device via which the at least one first transmission ratio and one second transmission ratio and a percussion drilling mode are able to be set. The hand-held tool device has a protective device which prevents an operation in the first transmission ratio in the percussion drilling mode.

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Номер записи: 16
04-07-2013 дата публикации

Key with spring-loaded window breaker

Номер: US20130167601A1
Автор: Laurent Colasse
Принадлежит: Individual

A multipurpose key for use by vehicle operators in the case of emergency. In addition to conventional key electronics, the key including a glass-breaking spike, an open slot cutter for cutting seat belts and the like, and may also include a light, an alarm, and other functions. The multipurpose key is formed as a single key unit so as to be always available in the ignition slot of the vehicle in case of emergency. A key portion may be separable from the glass-breaking spike portion.

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Номер записи: 17
25-07-2013 дата публикации

Trigger profile for a power tool

Номер: US20130186659A1
Автор: Joseph P. Kelleher, Scott Eshleman
Принадлежит: Black and Decker Inc

An improved method is provided for operating a power tool. The method includes receiving an input control variable from an input unit; receiving at least one tool parameter relating to the power tool; determining a derivative of the input control variable; selecting one of a plurality of control profiles based on the control input variable, the derivative of the input control variable, and the tool parameter, each control profile correlating the control input variable of the input unit to a rotational speed at which to drive the output shaft; and driving the output shaft at a rotational speed in accordance with the selected control profile.

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Номер записи: 18
25-07-2013 дата публикации

Hydraulic impact mechanism for use in equipment for treating rock and concrete

Номер: US20130186667A1
Автор: Anders Johansson, Maria Pettersson
Принадлежит: ATLAS COPCO ROCK DRILLS AB

A hydraulic impact mechanism, of the valveless impact mechanism type, comprising a pre-charged gas accumulator connected to a working chamber in order to make possible impact mechanisms for equipment for rock drilling and hydraulic breakers that is lighter, cheaper and more sustainable from the point of view of material fatigue. Furthermore, a gas accumulator of piston type with an integral brake chamber ( 240, 250, 360 ) and a piston ( 220, 320 ) designed to fit into the said brake chamber ( 240, 250, 360 ).

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Номер записи: 19
15-08-2013 дата публикации

Rescue punch for diver knife

Номер: US20130205511A1
Автор: Scott E. Dixon
Принадлежит: Individual

A diver's rescue knife including a handle with a threaded stud at the butt end, a hammer screwed onto the stud and mounting a hard pin with a sharp point.

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Номер записи: 20
22-08-2013 дата публикации

Slide hammer for a tire spoon and method of construction of the same

Номер: US20130213583A1
Автор: Larry Betcher, Michael White, Robert Jensen, Robert Kochie
Принадлежит: Individual

A slide hammer may be provided. The slide hammer may include: a body defining a through hole and a first attaching surface; an auxiliary weight having a second attaching surface configured to attach to the body at the first attaching surface, the auxiliary weight having a through hole located to align with the through hole in the body when the auxiliary weight is attached to the body; and a shaft located in the through holes in the body and auxiliary weight. A method of constructing a slide hammer is provided.

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Номер записи: 21
22-08-2013 дата публикации

Swash Drive of a Hand-Held Power Tool

Номер: US20130213682A1
Автор: Gerd Schlesak, Juergen Lennartz, Klaus Kuespert, Stefan Holst
Принадлежит: ROBERT BOSCH GMBH

The invention relates to a swash drive ( 10 ) of a hand-held machine tool, particularly a drilling or chipping hammer, having a drive shaft ( 12 ), comprising a swash bearing ( 14 ) disposed on the drive shaft ( 12 ), and having a swash disk ( 16 ) supported on the swash bearing ( 14 ), at least two swash fingers ( 18, 20 ) having swash finger axes ( 22, 24 ) being provided on the swash disk. The invention provides that the axes ( 22, 24 ) of the swash fingers ( 18, 20 ) form an angle (a) different from 180°.

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Номер записи: 22
17-10-2013 дата публикации

Power drill

Номер: US20130269461A1
Автор: Joachim Hecht, Martin Kraus
Принадлежит: ROBERT BOSCH GMBH

A power drill having percussion drilling function, drilling function and screwing function has a gearing for transmitting the drive motion of a drive unit to a tool spindle. Furthermore, two latching elements are provided which, in the percussion drilling function, are in latching engagement and in the drilling or screwing position are in the disengaged state. A mode setting device has a rotatable supporting ring and a thrust ring, coupled to the supporting ring in a torsionally fixed manner which, in the screwing position is held on the gear housing in an axially displaceable manner.

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Номер записи: 23
19-12-2013 дата публикации

Machine Tool and Control Method

Номер: US20130333904A1
Автор: Chafic Abu Antoun, Klaus Raggl, Michael Wierer
Принадлежит: Hilti AG

A machine tool with a tool holder which is equipped to mount a tool, such as a chiseling tool, moveably along a movement axis. A striking mechanism contains a primary drive, arranged around the movement axis, containing at least one magnetic coil. The striking mechanism has a striker and an anvil arranged within the magnetic coil on the movement axis in sequence in the impact direction. The anvil protrudes at least partially into the magnetic coil. In addition, the striking mechanism can have an air spring affecting the striker in the impact direction. A controlled power source forms an electrical circuit in which a current flows, controlled at a target value, from the power source and into at the at least one magnetic coil during an acceleration phase. A controller ends the acceleration phase when a change, typical for an impact, is detected in the current flowing in the magnetic coil or a change, typical for an impact, is detected in a control variable of a control circuit of the power source.

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Номер записи: 24
02-01-2014 дата публикации

Portable Power Tool

Номер: US20140000923A1
Автор: Andreas Schlegel, Juergen Dietel
Принадлежит: ROBERT BOSCH GMBH

A portable power tool, in particular a rotary and/or demolition hammer, has a pressure lever which is provided to execute a switching operation. A tolerance compensating unit is provided to effect tolerance compensation via a change in position of at least one contact surface.

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Номер записи: 25
27-02-2014 дата публикации

Vibration and Pressure Damping Device for Gripping Handles and Steering Mechanisms

Номер: US20140053371A1
Автор: Peter A. Feinstein
Принадлежит: Feinstein Patents LLC

A damping device for a handgrip of an object includes a bladder disposed in said handgrip, an inflation device in fluid communication with the bladder, and a controller adapted to detect at least one of vibrations and impact pressure, and automatically adjust a cushion pressure of said bladder by causing the inflation device to inflate or deflate the bladder with a fluid as appropriate in order to attenuate the at least one of vibrations and impact pressure transmitted through said handgrip.

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Номер записи: 26
01-01-2015 дата публикации

Hand-Held Power Tool Drive Device

Номер: US20150000945A1
Автор: Hardy Schmid
Принадлежит: ROBERT BOSCH GMBH

A hand-held power tool drive device includes at least one wobble drive unit that has at least one rotatably mounted drive element, with at least one wobble unit positioned on the at least one drive element. The drive device also includes at least one counterweight unit that has at least one movably mounted compensating element configured to be driven by the at least one wobble unit. The at least one wobble unit includes at least one force application point that is configured to drive the at least one compensating element. An axis extending through a rotational axis of the at least one drive element and the at least one force application point encloses an angle of between 0° and 135° with a wobble element longitudinal axis of a wobble element of the at least one wobble unit.

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Номер записи: 27
01-01-2015 дата публикации

SURGE ACCUMULATOR FOR HYDRAULIC HAMMER

Номер: US20150000949A1
Автор: MOORE Cody
Принадлежит: CATERPILLAR INC.

A hydraulic hammer is disclosed that includes at least one accumulator that is connectable to a hydraulic circuit disposed in the housing of the hammer. The accumulator includes an annular base coupled to a cover with a diaphragm sandwiched therebetween. The annular base includes a proximal end and a distal end. The proximal end of the annular base defines a first central opening. The proximal end of the base in the housing define an annular inlet that encircles the first central opening and that is in communication with the first central opening. The cover also includes a proximal end and a distal end. The proximal end of the cover is coupled to the distal end of the base with the outer periphery of the diaphragm sandwiched therebetween. 1. An accumulator that is connectable to a hydraulic circuit disposed in a housing , the accumulator comprising:an annular base including a proximal end and a distal end, the proximal end of the base defining a first central opening, the proximal end of the base and the housing defining an annular inlet that encircles the first central opening and that is in communication with the first central opening;a diaphragm having an outer periphery;a cover including a proximal end and a distal end, the proximal end of the cover coupled to the distal end of the base with the outer periphery of the diaphragm sandwiched therebetween.2. The accumulator of wherein the distal end of the base includes a first annular projection claim 1 , the proximal end of the cover includes a second annular projection claim 1 , the first and second annular projections being directed at one another and sandwiching the outer periphery of the diaphragm therebetween.3. The accumulator of wherein the cover is connected to the housing with by at least one fastener and the base is sandwiched between the cover and the housing.4. The accumulator of wherein the distal end of the cover includes a gas inlet port for receiving pressurized liquid.5. The accumulator of wherein ...

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Номер записи: 28
07-01-2021 дата публикации

ROTARY-PERCUSSIVE HYDRAULIC PERFORATOR PROVIDED WITH A CONTROL CHAMBER PERMANENTLY CONNECTED TO A LOW-PRESSURE ACCUMULATOR

Номер: US20210001462A1
Автор: Comarmond Jean-Sylvain
Принадлежит:

The rotary percussive hydraulic perforator comprises a body; a fitting; a striking piston configured to strike the fitting; a stop piston including a front face facing the fitting and a rear face situated opposite to a rear wall of a cavity receiving the piston stop; and a main hydraulic supply circuit including a high pressure fluid supply conduit and a low pressure fluid return conduit. The body and the stop piston delimit a first control chamber permanently connected to the high pressure fluid supply conduit and configured to bias the stop piston forwards, and a second control chamber configured to bias the stop piston forwards and permanently connected to a low pressure accumulator connected to the low pressure fluid return conduit. 1. A rotary percussive hydraulic perforator comprising:a body,a fitting intended to be coupled to at least one drilling bar equipped with a tool,a striking piston slidably mounted inside the body along a striking axis and configured to strike the fitting,a stop piston which is slidably mounted in a cavity of the body along an axis of displacement substantially parallel to the striking axis, the stop piston including a front face facing the fitting and intended to position the fitting in a predetermined equilibrium position with respect to the striking piston, and a rear face opposite to the face front and situated opposite to a rear wall of the cavity, anda main hydraulic supply circuit configured to control an alternating sliding of the striking piston along the striking axis and to control a sliding of the stop piston along the displacement axis, the main hydraulic supply circuit including a high pressure fluid supply conduit and a low pressure fluid return conduit,the body and the stop piston delimiting at least partially a first control chamber permanently connected to the high pressure fluid supply conduit and configured to bias the stop piston forwards, the rotary percussive hydraulic perforator further comprising a connecting ...

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Номер записи: 29
07-01-2021 дата публикации

HANDHELD POWER TOOL

Номер: US20210001463A1
Автор: HARTMANN Markus, KOHLSCHMIED Frank
Принадлежит:

A handheld power tool has a tool socket to hold a tool along a working axis A motor-driven, pneumatic striking mechanism has an exciter which is driven by a motor a striker that is coupled to the exciter via a pneumatic chamber and an intermediate striker arranged on the working axis in the striking direction behind the striker A ventilation opening connects a cavity situated between the striker and the intermediate striker to the environment. A valve that closes the ventilation opening is opened when actuated by the intermediate striker when the intermediate striker is moved into its working position counter to the striking direction 1. A handheld power tool comprising:a tool socket for holding a tool along a working axis;a motor-driven, pneumatic striking mechanism having an exciter driven by a motor, a striker coupled to the exciter via a pneumatic chamber, and an intermediate striker arranged on the working axis in the striking direction behind the striker;a ventilation opening connecting a cavity situated between the striker and the intermediate striker to the environment; anda valve allowing closing and opening of the ventilation opening and being opened when the intermediate striker is moved into a working position counter to the striking direction;the intermediate striker having a profiled circumferential surface, so that the intermediate striker in the working position does not cover up the ventilation opening and, when moved out of the working position in the striking direction, does cover the ventilation opening.2. The handheld power tool as recited in wherein the valve has a channel leading in a radial direction all the way to the intermediate striker claim 1 , and a closure element defined by a circumferential surface of the intermediate striker.3. The handheld power tool as recited in wherein proceeding in the striking direction claim 2 , the circumferential surface of the intermediate striker consecutively has an annular first section with a first ...

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Номер записи: 30
05-01-2017 дата публикации

HYDRAULIC HAMMERING DEVICE

Номер: US20170001293A1
Автор: Kaneko Tsutomu, Matsuda Toshio
Принадлежит:

Provided is a hydraulic hammering device having improved hammering efficiency and of low cost. A piston has a valve switching groove between large-diameter sections thereof. A cylinder has three control ports at positions corresponding to the valve switching groove. A switching valve mechanism has a valve presser for always pressing a valve in one direction and also has a valve controller for moving, when supplying pressurized oil, the valve in the opposite direction against the pressing force of the valve presser. A valve control port communicates with the valve controller so as to supply the pressurized oil to the valve controller and is separated from a piston front chamber and a piston rear chamber. Only either a piston retraction control port or a piston advance control port communicates with the valve control port depending on advance or retraction of the valve switching groove. 1. A hydraulic hammering device comprising:a cylinder;a piston that is slidably fitted into the inside of the cylinder;a piston front chamber and a piston rear chamber that are defined between an outer peripheral surface of the piston and an inner peripheral surface of the cylinder and are arranged separated from each other in axially front and rear direction; anda switching valve mechanism configured to switch each of the piston front chamber and the piston rear chamber into communication with either a high pressure circuit or a low pressure circuit in an interchanging manner; and which is configured to hammer a rod to be hammered, by making the piston advance and retract in the cylinder,wherein the piston has a large-diameter section, small-diameter sections that are individually disposed in front and the rear of the large-diameter section, and a valve switching groove that is formed substantially at an axially middle portion of the large-diameter section,the switching valve mechanism has a valve chamber that is formed in the cylinder in a non-concentric manner with the piston, a ...

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Номер записи: 31
05-01-2017 дата публикации

HYDRAULIC HAMMERING DEVICE

Номер: US20170001294A1
Автор: ECHIGOYA Shunsuke, GOTO Tomohiro, KOIZMUI Masahiro, Matsuda Toshio, MURAKAMI Susumu
Принадлежит:

A hydraulic hammering device that uses a scheme in which a front chamber is switched into communication with a low-pressure circuit when a piston advances, wherein occurrences of “galling” to the piston at a sliding contact portion with a front-chamber liner is reduced. The front chamber has the front-chamber liner fitted to an inner surface of a cylinder. A hydraulic chamber space communicating with the front chamber and filled with hydraulic oil is formed as a cushion chamber on the inner peripheral surface of a rear portion of the front-chamber liner. The cushion chamber has a second drain circuit (from first end face grooves to slits to second end face grooves, which is provided separately from a drain circuit that guides the hydraulic fluid passing through a liner bearing of the front-chamber liner to the low-pressure circuit. 1. A hydraulic hammering device comprising:a piston slidably fitted into a cylinder, the piston being configured to advance and retract to hammer a rod for hammering;a front chamber and a rear chamber that are defined between an outer peripheral surface of the piston and an inner peripheral surface of the cylinder and arranged separated from each other in the front and rear direction; anda switching valve mechanism configured to switch the front chamber into communication with a low pressure circuit when the piston advances and to supply and discharge hydraulic oil so that an advance and a retraction of the piston can be repeated,wherein the front chamber has a front-chamber liner that is fitted to an inner surface of the cylinder,a hydraulic chamber space is formed to the front-chamber liner as a cushion chamber, the hydraulic chamber space communicating with the front chamber to be filled with hydraulic oil, andthe cushion chamber has a second drain circuit that is formed separately from a drain circuit configured to guide hydraulic oil passing a liner bearing section of the front-chamber liner to the low pressure circuit and that ...

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Номер записи: 32
05-01-2017 дата публикации

Drill Bit

Номер: US20170001335A1
Автор: Miyanaga Masaaki
Принадлежит: KABUSHIKI KAISHA MIYANAGA

A drill bit includes a pointed head and a bit shaft. A dust suction passage is formed in the bit shaft. A hole with an opening is formed in the pointed head or in a portion of the bit shaft, the portion being near a distal end of the bit shaft. The bit shaft includes a first portion, the first portion including a core and a rib. The core extends in an axial direction, and is thinner than the pointed head. The rib protrudes radially outward from a side surface of the core, and extends over an entire length of the first portion. The dust suction passage extends through the core in the axial direction. 1. A drill bit comprising:a pointed head including a plurality of cutting edges, which are arranged in a radial manner with respect to a central axis;a bit shaft provided with the pointed head at its distal end;a dust suction passage formed in the bit shaft and extending in an axial direction; anda hole with an opening, the hole being formed in the pointed head or in a portion of the bit shaft, the portion being near the distal end of the bit shaft, wherein:the hole is in communication with the dust suction passage;the bit shaft includes a first portion, the first portion including a core and a rib;the core extends in the axial direction, and is thinner than the pointed head;the rib protrudes radially outward from a side surface of the core, and extends over an entire length of the first portion; andthe dust suction passage extends through the core in the axial direction.2. The drill bit according to claim 1 , whereina radial position of a radially outer end surface of the rib is substantially equal to a radial position of an outer peripheral surface of the pointed head.3. The drill bit according to claim 1 , whereinthe first portion includes a plurality of the ribs, andthe plurality of the ribs are arranged in a circumferential direction such that the ribs are spaced apart from each other.4. The drill bit according to claim 3 , whereinthe plurality of the ribs are ...

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Номер записи: 33
04-01-2018 дата публикации

PERCUSSION MECHANISM DEVICE, IN PARTICULAR FOR AN IMPACT WRENCH

Номер: US20180001447A1
Автор: LAM Chian Wah, Yeoh Sim Teik
Принадлежит:

A percussion mechanism device, in particular for an impact wrench, includes a drivable drive shaft that has at least one guide groove, an output shaft, and a percussion unit that includes an anvil coupled with the output shaft in a rotationally fixed manner, a hammer, and at least one ball. The hammer is supported via the at least one ball along the at least one guide groove on the drive shaft and includes an at least regionally concavely curved ball guidance area that has an axial clearance from the at least one ball at a radially innermost point that is greater than a radial clearance between the at least one ball and a radially innermost point of a concave ball guidance area of the at least one guide groove. 110-. (canceled)11. A percussion mechanism device comprising:a drivable drive shaft that includes at least one guide groove;an output shaft; and an anvil coupled in a rotationally fixed manner with the output shaft;', 'a hammer; and', is supported via the at least one ball along the at least one guide groove on the drive shaft; and', 'includes an at least regionally concavely curved ball guidance area that has an axial clearance from the at least one ball at a radially innermost point that is greater than a radial clearance between the at least one ball and a radially innermost point of a concave ball guidance area of the at least one guide groove., 'at least one ball, wherein the hammer], 'a percussion unit that includes12. The percussion mechanism device of claim 11 , wherein the at least one ball is arranged for a contact-pressure surface to radially press the at least one ball in a direction of the at least one guide groove.13. The percussion mechanism device of claim 12 , wherein the contact-pressure surface includes a cylindrical inner wall against which the at least one ball can be pressed claim 12 , and a diameter of the inner wall corresponds at least essentially to twice a diameter the at least one ball plus a smallest possible thickness of the ...

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Номер записи: 34
04-01-2018 дата публикации

STRIKING TOOL WITH ATTACHED STRIKING SURFACE

Номер: US20180001458A1
Автор: Flosi Steven M., JR. John W., Ryan, West Joshua D.
Принадлежит:

An example hammer disclosed herein includes a handle. The hammer also includes a head comprising a neck. The neck has a tapered receiving surface and an end face. The hammer further includes a cap comprising a tapered mounting surface. The mounting surface is surrounding and engaging the receiving surface to permanently affix the cap to the neck. A first circumference of engagement at a first end of a length of engagement between the mounting surface and the receiving surface is greater than a second circumference of engagement at a second end of the length of engagement. The first end is farther from the end face of the neck than the second end. 1. A hammer , comprising:a handle;a head comprising a neck, the neck having a tapered receiving surface and an end face; anda cap comprising a tapered mounting surface, the mounting surface surrounding and engaging the receiving surface to permanently affix the cap to the neck, wherein a first circumference of engagement at a first end of a length of engagement between the mounting surface and the receiving surface is greater than a second circumference of engagement at a second end of the length of engagement, the first end being farther from the end face of the neck than the second end.2. The hammer of claim 1 , wherein the receiving surface is tapered relative to a longitudinal axis of the neck at an angle greater than zero degrees and less than or equal to seven degrees measured along a side of the receiving surface.3. The hammer of claim 2 , wherein the mounting surface is tapered relative to a longitudinal axis of the neck at an angle greater than zero degrees and less than or equal to seven degrees measured along a side of the mounting surface.4. The hammer of claim 3 , wherein the head and the handle are a single piece of aluminum.5. The hammer of claim 4 , wherein the cap is steel.6. The hammer of claim 5 , wherein a void space exists between the cap and the end face of the neck.7. The hammer of claim 6 , wherein ...

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Номер записи: 35
04-01-2018 дата публикации

Impacting apparatus

Номер: US20180001461A1
Автор: Christopher Pedicini, John Witzigreuter
Принадлежит: Tricord Solutions Inc

An impacting apparatus includes a spring anvil assembly and a drive mechanism that alternatively engages a the spring anvil assembly to actuate the spring anvil assembly to store potential energy in the spring anvil assembly, and which drive mechanism alternatively disengages the spring anvil assembly to allow the spring anvil assembly to launch and accelerate toward an impact target to deliver impact energy from the spring anvil assembly to the impact target. In an embodiment, the spring anvil assembly is biased to a start position by one of the impact target and the weight of the apparatus. The spring anvil assembly may comprise a gas spring or a spring, for example. The apparatus is capable of delivering multiple impacts to an impact target.

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Номер записи: 36
04-01-2018 дата публикации

HAND-HELD POWER TOOL AND CONTROL METHOD THEREFOR

Номер: US20180001462A1
Автор: DIEING Christoph, KOHLSCHMIED Frank, ONTL Rainer
Принадлежит:

A hand-held power tool has a tool holder for holding a tool along a working axis. A hammer mechanism has a striker that is moved periodically at an impact rate along the working axis between a turning point in the proximity of the tool and a turning point remote from the tool. A drive control of the hammer mechanism sets the impact rate to a set point value. A vibration absorber has an oscillator that moves along the working axis about a resting position and one or multiple springs that drive the oscillator back into the resting position. A first sensor is used to determine a phase of the motion of the striker. A sensor is used to determine a first phase of a compression point of the hammer mechanism. Another sensor is used to determine a second phase of a turning point in the proximity of the tool, of the hammer mechanism. A damping controller adapts the set point value in such a way that a phase difference between the first phase and the second phase is less than a threshold value. 14-. (canceled)5. A hand-held power tool comprising:a tool holder for holding a tool on a working axis;a hammer mechanism including a striker moved periodically at an impact rate on the working axis between a turning point close to the tool and a turning point remote from the tool;a drive control of the hammer mechanism setting the impact rate to a setpoint value;a vibration absorber including an oscillator movable along the working axis about a resting position and at least one spring driving the oscillator back into the resting position;at least one sensor for ascertaining a first phase of a compression point of the hammer mechanism;the at least one sensor for ascertaining a second phase of a turning point of the vibration absorber close to the tool; anda damping controller adapting the setpoint value in such a way that a phase difference between the first phase and the second phase is less than a threshold value.6. The hand-held power tool as recited in further comprising an RPM- ...

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Номер записи: 37
04-01-2018 дата публикации

WORK TOOL

Номер: US20180001463A1
Автор: FURUSAWA Masanori
Принадлежит: MAKITA CORPORATION

A work tool includes a driving motor, a rotary shaft member configured to be rotationally driven by the driving motor, a swinging member configured to be caused to swing by rotation of the rotary shaft member, a tool accessory driving mechanism configured to drive a tool accessory by swinging of the swinging member, a body housing the driving motor, the rotary shaft member, the swinging member and the tool accessory driving mechanism, and a vibration reducing mechanism configured to reduce vibration caused in the body. The vibration reducing mechanism includes a dynamic vibration reducer having an elastic member and a weight, and a connecting member connecting the weight and the swinging member. The vibration reducing mechanism is configured to reciprocate the weight via the connecting member by the swinging of the swinging member. 1. A work tool configured to perform a specified operation on a workpiece by linearly driving a tool accessory , the work tool comprising:a driving motor,a rotary shaft member configured to be rotationally driven by the driving motor,a swinging member configured to be caused to swing by rotation of the rotary shaft member,a tool accessory driving mechanism configured to drive the tool accessory by swinging of the swinging member,a body housing the driving motor, the rotary shaft member, the swinging member and the tool accessory driving mechanism, anda vibration reducing mechanism configured to reduce vibration caused in the body, wherein: a dynamic vibration reducer having an elastic member and a weight, the weight being biased by the elastic member and being reciprocatable; and', 'a connecting member connecting the weight and the swinging member, and, 'the vibration reducing mechanism includesthe vibration reducing mechanism is configured to reciprocate the weight via the connecting member by the swinging of the swinging member.2. The work tool as defined in claim 1 , wherein the weight and the connecting member are connected to be ...

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Номер записи: 38
08-01-2015 дата публикации

Powered tile breaker

Номер: US20150007805A1
Автор: Richard Tailly
Принадлежит: Individual

A powered tile breaker having a main adjustable frame with handlebars located at a top end section thereof, at least one wheel located at a lower end section thereof, and an adjustable shaft connected between the top end section and the lower end section. A main motor located inside a main motor frame pivotally connected to the lower end section; a chiseling device mechanically connected to the main motor and adapted to deliver repeating chiseling strokes to a chosen tile; and an adjustment mechanism connected between the lower end section of the main adjustable frame and the motor frame, the adjustment mechanism capable of changing and securely holding the motor frame, main motor and the chiseling device at a chosen angle with respect to the lower end section to thereby provide repeating chiseling strokes to a chosen tile at a chosen angle.

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Номер записи: 39
20-01-2022 дата публикации

Dead blow hammer head

Номер: US20220016752A1
Автор: Jonathan I. Andersen, Scott A. Bendorf
Принадлежит: Snap On Inc

A hammer head with an internal cavity including weights that are sized to restrict the weights from escaping from a crack in the hammer or are easily collected and accounted for should the hammer separate to ensure foreign objects and debris do not contaminate sensitive work spaces. The weights are shaped to allow the weights to longitudinally move in the internal cavity. The weights may take the form of a number of different shapes.

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Номер записи: 40
03-01-2019 дата публикации

Power tool

Номер: US20190006909A1
Автор: Tatsuya Nagahama
Принадлежит: Makita Corp

Provided is a power tool whereby reduction is made for time-consuming effort and cost required in trouble, inspection and so forth related to a motor. A hammer drill, which is an example of a power tool, includes a plurality of coils, an insulator holding the plurality of coils, a terminal unit that is electrically connected to the plurality of coils and is attached to the insulator, a rotor that is rotatable with respect to the insulator, and a sensor board that detects rotation of the rotor and is attached to the terminal unit. The sensor board is detachable from the terminal unit, while the terminal unit is attached to the insulator.

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Номер записи: 41
14-01-2021 дата публикации

Setting Method for Threading Connection by Means of Impact Wrench

Номер: US20210008698A1
Автор: Antonio ORVIETO, Dario BRALLA, Matthaeus ALBERDING
Принадлежит: Hilti AG

A control method for tightening a threaded connection executes, in response to actuation of a pushbutton key, a sequence with consecutive phases. In a first phase, an impact mechanism of an impact wrench exerts a predefined number of rotary impacts on the threaded connection. During the first phase, a profile of a rotational angle over time is estimated. A pattern is adapted to the profile and on the basis of the pattern a setpoint torque is determined for a second phase and a final rotational angle or a final number of impacts is determined for a third phase. During the second phase, rotary impacts are exerted until an estimated torque reaches the setpoint torque. During the third phase, rotary impacts are exerted on the threaded connection until a number of rotary impacts corresponds to the final number or a rotational angle corresponds to the final rotational angle.

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Номер записи: 42
14-01-2021 дата публикации

HAMMER DRILL

Номер: US20210008704A1
Автор: Elger William A.
Принадлежит:

A hammer drill includes a housing, a first ratchet fixed to the housing, a spindle rotatably supported by the housing about an axis, and a second ratchet coupled for co-rotation with the spindle. The second ratchet is engageable with the first ratchet in response to rearward displacement of the spindle to impart a hammering action on the spindle. The hammer drill further includes a thrust bearing having an arm extending away from the axis, and a selector ring having a post extending toward the arm. The selector ring is rotatable between a first position in which the post is engageable with the arm to limit the rearward displacement of the spindle and prevent engagement of the first and second ratchets, and a second position in which the post is misaligned with the arm to permit the rearward displacement of the spindle and engagement of the first and second ratchets. 1. A hammer drill comprising:a housing;a first ratchet fixed to the housing;a spindle rotatably supported by the housing about an axis;a second ratchet coupled for co-rotation with the spindle, the second ratchet being engageable with the first ratchet in response to rearward displacement of the spindle to impart a hammering action on the spindle while the spindle rotates;a thrust bearing for absorbing an axial load on the spindle in response to the rearward displacement of the spindle, the thrust bearing including an arm extending away from the axis; anda selector ring including a post extending toward the arm, the selector ring being rotatable between a first position in which the post is engageable with the arm of the thrust bearing to thereby limit the rearward displacement of the spindle and prevent engagement of the first and second ratchets, and a second position in which the post is misaligned with the arm of the thrust bearing to permit the rearward displacement of the spindle and engagement of the first and second ratchets,wherein the selector ring is rotatable to a third position, wherein the ...

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Номер записи: 43
03-02-2022 дата публикации

Locking Ring Impactor Apparatus

Номер: US20220032436A1
Автор: Goble, Holcombe Benjamin Todd, III Albert Leroy
Принадлежит:

A locking ring impactor apparatus is a modular tool housing used to rotate the locking rings of centrifuges, pressure vessels, or other industrial equipment using conventional power tools. The locking ring impactor apparatus utilizes an impacting tool mounted to an armature with a recoil damper assembly. The armature receives and supports the impacting tool while the recoil damper assembly absorbs and mitigates the recoil forces generated by the impacting tool. A tool adapter is mounted between the impacting tool and a locking ring with at least one tensile member being engaged between the tool adapter and the recoil damper assembly. The at least one tensile member is configured to apply tension between the tool adapter and the recoil damper assembly to ensure that the force of the impacting tool is directed towards rotating the locking ring instead of vibrating the armature in-place. 1. A locking ring impactor apparatus comprising:an armature;an impacting tool;a recoil damper assembly;at least one tensile member;a tool adapter;the armature extending between a forward end and a rear end;the impacting tool being mounted to the armature between the forward end and the rear end;the recoil damper assembly being engaged to the tool armature;the tool adapter being mounted to the impacting tool, adjacent to the forward end of the armature; andat least one tensile member being engaged between the tool adapter and the recoil damper assembly, wherein the at least one tensile member is configured to apply tension between the tool adapter and the recoil damper assembly.2. The locking ring impactor apparatus as claimed in comprising:the recoil damper assembly further comprising a housing, a channel, and a damper;the housing being mounted to the armature between the forward end and the rear end;the channel traversing the housing between the forward end and the rear end; andthe damper being mounted into the channel.3. The locking ring impactor apparatus as claimed in comprising: ...

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Номер записи: 44
03-02-2022 дата публикации

IMPACT MECHANISM WITH MULTI-MATERIAL STRIKER

Номер: US20220032437A1
Автор: Didier Will, McLachlan Kevin A., Young Tyler
Принадлежит:

An impact mechanism for use in a power tool having a motor and adapted to impart axial impacts to a tool bit. The impact mechanism includes a piston configured to reciprocate in response to receiving torque from the motor, a striker that is selectively reciprocable within the spindle in response to reciprocation of the piston, and an anvil that is impacted by the striker when the striker reciprocates towards the tool bit. The anvil imparts axial impacts to the tool bit. The striker includes a body portion formed of a first material and an insert portion within the body portion. The insert portion is formed of a second material that is more dense than the first material. 1. An impact mechanism for use in a power tool having a motor and adapted to impart axial impacts to a tool bit , the impact mechanism comprising:a piston configured to reciprocate in response to receiving torque from the motor;a striker that is selectively reciprocable within the spindle in response to reciprocation of the piston; andan anvil that is impacted by the striker when the striker reciprocates towards the tool bit, the anvil imparting axial impacts to the tool bit,wherein the striker includes a body portion formed of a first material and an insert portion within the body portion, the insert portion being formed of a second material that is more dense than the first material.2. The impact mechanism of claim 1 , wherein the insert portion is a cylindrical slug.3. The impact mechanism of claim 1 , wherein the body portion includes a cavity into which the insert portion is received.4. The impact mechanism of claim 3 , wherein the insert portion is a cylindrical slug claim 3 , and wherein the cavity has a cylindrical shape to receive the cylindrical slug.5. The impact mechanism of claim 1 , wherein the first material is steel claim 1 , and wherein the second material is tungsten carbide.6. The impact mechanism of claim 1 , wherein the striker includes a nose that impacts the anvil.7. The impact ...

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Номер записи: 45
19-01-2017 дата публикации

Seal placement device

Номер: US20170014960A1
Автор: Gregory Menissez, Remi Durieu
Принадлежит: NORETUD INDUSTRIES

A device ( 100 ) for placing a seal (J) on a mounting (S) including a vibration generator ( 10 ), that includes: a main body ( 11 ); a distal portion ( 12 ), movable relative to the main body, onto which a cap ( 13 ) having a contact surface ( 13 a ) for engaging with the seal is attached; and drive elements ( 14 ), configured to drive the distal portion in reciprocal translation relative to the main body, such as to place the seal on the mounting when the contact surface ( 13 a ) of the cap ( 13 ) engages with the seal (J) that is placed on the mounting (S). The device includes: a grasping handle ( 20 ), connected to the main body; and resilient connection elements ( 30 a, 30 b ) that are located between the main body and the grasping handle and are configured such as to limit the propagation, in the grasping handle, of the vibrations generated by the reciprocal translation movement.

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Номер записи: 46
19-01-2017 дата публикации

CHISELING HANDHELD POWER TOOL

Номер: US20170014983A1
Автор: Hauptmann Makus, HAUPTMANN Udo, WIEDNER Aaron
Принадлежит: Hitlti Aktiengesellschaft

The striking pin () is arranged in a bearing (). The striking pin () has a circumferential surface () and a stop surface () facing in the striking direction (). The bearing () has a sleeve () arranged coaxially to the working axis () as well as a catcher (). The circumferential surface () of the striking pin () is installed so as to slide on the inside of the sleeve (). The catcher () is arranged in the striking direction () of the stop surface () of the striking pin () in order to limit the movement of the striking pin () in the striking direction (). A connecting link () is provided for purposes of causing the striking pin () to execute a rotation relative to the bearing () when the striking pin () moves in the striking direction (). The connecting link () has a flank () on the striking pin () and another flank () on the bearing (), whereby the two flanks () that rest against each other during the movement rise in the striking direction () in the same circumferential direction (). 110-. (canceled)11. A chiseling handheld power tool comprising:a tool socket to hold a chiseling tool coaxially to a working axis;a motor;a striking mechanism including an exciter forcibly excited by the motor periodically, a striker installed and movable coaxially to the working axis, a pneumatic chamber configured between the exciter and the striker so as to couple a movement of the striker to the movement of the exciter, and a striking pin behind the striker arranged in the striking direction for purposes of indirectly transmitting an impact from the striker to the chiseling tool held in the tool socket, the striking pin having a circumferential surface and an end face facing in the striking direction;a bearing having a sleeve arranged coaxially to the working axis as well as a catcher, the circumferential surface of the striking pin being slidable on the sleeve, and the catcher being arranged in the striking direction of the end face of the striking pin in order to limit the movement ...

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Номер записи: 47
18-01-2018 дата публикации

IMPACT TOOL

Номер: US20180015602A1
Автор: MACHIDA Yoshitaka
Принадлежит: MAKITA CORPORATION

An impact tool includes a tool body, a tool holder, a cylindrical member, a reciprocating member, a motor, a first rotary body, a second rotary body, a swinging member, and clutch mechanisms. The clutch mechanisms are disposed between the first rotary body and the second rotary body on a power transmission path from the motor to the swinging member. The tool holder and the cylindrical member move together as a movable unit with respect to the tool body between a front end position and a separate position, according to a pressing force applied to the tool holder. The clutch mechanisms are each configured to start transmission of the first rotary body to the second rotary body while the movable unit moves from the front end position to the separate position and to interrupt transmission while the movable unit moves from the separate position to the front end position. 1. An impact tool configured to linearly drive a tool accessory in a direction of a hammering axis , the impact tool comprising:a tool body,a tool holder disposed in a front end region of the tool body and configured to hold the tool accessory in such a manner that the tool accessory is movable in the direction of the hammering axis with respect to the tool holder,a cylindrical member connected to the tool holder,a reciprocating member disposed within the cylindrical member in such a manner that the reciprocating member is reciprocatable in the direction of the hammering axis, the reciprocating member being configured to drive the tool accessory in the direction of the hammering axis,a motor,a first rotary body configured to be rotationally driven by the motor around a rotation axis, the rotation axis being parallel to the hammering axis,a second rotary body rotatably disposed and coaxially arranged with respect to the first rotary body,a swinging member configured to swing according to rotation of the second rotary body and to thereby reciprocate the reciprocating member in the direction of the ...

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Номер записи: 48
18-01-2018 дата публикации

IMPACT TOOL

Номер: US20180015603A1
Автор: Abe Satoshi, KANBE Kuniaki
Принадлежит:

An impact tool in which stop control of a motor as power source of a tool bit is changed in accordance with a predetermined condition is provided. A hammer drill having two or more operating modes including a hammer mode in which an impact force is transmitted to a tool bit whereas a rotational force s not transmitted thereto and a hammer drill mode in which at least the rotational force is transmitted to the tool bit includes a motor as a power source and a control part that performs stop control to stop the motor, and the control part performs any one of two or more of the stop controls in accordance with a predetermined condition. 1. An impact tool having two or more operating modes including a first operating mode in which an impact force is transmitted to a tool bit whereas a rotational force is not transmitted to the tool bit and a second operating mode in which at least the rotational force is transmitted to the tool bit , the impact tool comprising:a motor as a power source; anda control part that performs stop control to stop the motor,wherein the control part performs any one of two or more of the stop controls in accordance with a predetermined condition.2. The impact tool according to claim 1 ,wherein the stop controls include stop control having a large braking force to the motor, and stop control having a small braking force to the motor.3. The impact tool according to claim 2 ,wherein the stop control having the large braking force is an active-stop control including a braking process to actively stop rotation of the motor, and the stop control having the small braking force is a natural-stop control including no braking process.4. The impact tool according to claim 2 ,wherein the control part performs the stop control having the small braking force when the first operating mode is selected, arid performs the stop control having the large braking force when the second operating mode is selected.5. The impact tool according to claim 2 ,wherein the ...

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Номер записи: 49
21-01-2021 дата публикации

DUST COLLECTOR

Номер: US20210016405A1
Автор: MORI Keita, YOSHIKANE Kiyonobu
Принадлежит: MAKITA CORPORATION

A dust collector includes a body configured to be removably attached to a lower side of a tool body of a drilling tool, a dust storing part to be disposed on a lower side of the body, a sliding part having a suction port and held by the body so as to be slidable in a front-rear direction, a dust transfer passage extending within the sliding part and connecting the suction port and an inlet of the dust storing part, and a tool connection passage disposed within an internal space of the body and configured to connect an outlet of the dust storing part and an inlet of the tool body of the drilling tool. The dust storing part includes the inlet, a filter, a dust storing space and the outlet. The filter is disposed forward of the inlet of the dust storing part. 1. A power tool configured to perform a processing operation by driving a tool accessory attached to the power tool such that an axis of the tool accessory coincides with a driving axis , the power tool being connectable with a dust collector for collecting dust generated during the processing operation , the dust collector including a suction port disposed to surround the tool accessory , an outlet and a suction passage extending from the suction port to the outlet , the power tool comprising:a tool body including a mounting part and a first inlet, the mounting part being configured such that the dust collector is attachable to and detachable from the mounting part in parallel to the driving axis, the first inlet communicating with the suction passage via the outlet when the dust collector is attached to the mounting part;a motor including a motor body and a motor shaft, the motor body including a stator and a rotor, the motor shaft extending from the rotor in parallel to the driving axis;a fan mounted on the motor shaft so as to rotate together with the motor shaft, the fan having a first blade configured to generate a dust-collecting air flow flowing through the suction passage and into the tool body through ...

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Номер записи: 50
21-01-2021 дата публикации

POWER TOOL

Номер: US20210016420A1
Автор: Arakawa Kazuya, KUMAGAI Ryunosuke, TOMONAGA Akira
Принадлежит:

A power tool includes a motor disposed in a motor housing, a handle extending downward from the motor housing, a main switch provided on the handle and configured to switch the motor ON and OFF, and a state-changing operation part located on a lower portion of the motor housing or on an upper-end portion of the handle. The state-changing operation part is located upward of the main switch and is configured to effect a change of a rotational state of the motor, other than a direction of rotation of the motor, or an illumination level of a light. 119-. (canceled)20. A power tool comprising:a main housing;a motor disposed in the main housing;a controller configured to control operation of the motor;a handle extending obliquely from the main housing;a trigger that is depressible to energize the motor, the trigger being disposed on the handle between a first portion of the handle that connects to the main housing and a second portion of the handle that is remote from the first portion of the handle;a first button located on the main housing adjacent to the handle or on the first portion of the handle, the first button being configured to depress a first switch that is electrically connected with the controller and being disposed in a plane that intersects the trigger, the first portion of the handle and the second portion of the handle so as to be operable by a finger of a user's hand while the user is gripping the handle, the first button being pressable to cycle through and manually select one impact force setting from among a plurality of stored impact force settings solely by a single push of the first button; anda second button located on the second portion of the handle, the second button being configured to depress a second switch that is electrically connected with the controller and being pressable to cycle through and manually select one impact force setting from among the plurality of stored impact force settings.21. The power tool according to claim 20 , ...

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Номер записи: 51
25-01-2018 дата публикации

IMPACT TOOL

Номер: US20180021931A1
Автор: Abe Satoshi, Hashimoto Hideyuki, Ookubo Takahiro
Принадлежит:

An impact tool that realizes an ON-lock function with a simple mechanism and makes it possible to switch between activation and deactivation of the ON-lock function with few operation processes is provided. A hammer drill having at least two operating modes including a hammer mode in which an impact force is transmitted to a tool bit whereas a rotational force is not transmitted thereto includes: a motor as a power source; a trigger lever and an ON-lock button that are operated by an operator; a sensor that detects whether a selected operating mode is the hammer mode or not; and a controller that controls the motor based on an operation of the trigger lever and the ON-lock button. When the ON-lock button is operated while the hammer mode is selected, the controller performs ON-lock control to maintain the motor in the operating state even when the trigger lever is not operated. 1. An impact tool having at least two operating modes including a first operating mode in which an impact force is transmitted to a tool bit whereas a rotational force is not transmitted to the tool bit , the impact tool comprising:a motor as a power source;a first operation part and a second operation part operated by an operator;a mode detection part detecting whether a selected operating mode is the first operating mode or not; anda control part controlling the motor based on an operation of the first operation part and the second operation part,wherein, when the second operation part is operated while the first operating ode is selected, the control part performs ON-lock control to maintain the motor in an operating state even when the first operation part is not operated.2. The impact tool according to claim 1 ,wherein the control part stops the motor when the first operation part is operated while the ON-lock control is performed.3. The impact tool according to claim 1 ,wherein the control part stops the motor when the first operation part is operated while the ON-lock control is ...

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Номер записи: 52
24-01-2019 дата публикации

LOAD-BASED CONTROL OF BREAKER MACHINE

Номер: US20190022846A1
Автор: Danielsson Torkel, Karlsson Magnus
Принадлежит: Atlas Copco Airpower, Naamloze Vennootschap

A breaker machine includes a power source, a tool holder arranged to receive a tool and a power driven striking mechanism arranged to strike a tip of the tool with a striking frequency on a hard surface. The breaker machine further includes control circuitry arranged to control an output from the power source and load detection means arranged to detect the load of the power source and transmit information relating to the detected load of the power source to the control circuitry. The control circuitry is arranged to receive information relating to a load of the power source, select a striking frequency based on the information relating to the load of the power source and to apply the selected striking frequency by ramping a current striking frequency to the selected striking frequency based on a predetermined ramping scheme by controlling the output from the power source. 110-. (canceled)11. A breaker machine comprising a power source , a tool holder configured to receive a tool , a power driven striking mechanism configured to strike a tip of the tool with a striking frequency on a hard surface , control circuitry configured to control an output from the power source , and a load detector configured to detect the load of the power source and transmit information relating to the detected load of the power source to the control circuitry , wherein the control circuitry is configured to receive the information relating to the load of the power source wherein the control circuitry is further configured to select a striking frequency based on the information relating to the load of the power source and to apply the selected striking frequency by ramping a current striking frequency to the selected striking frequency based on a predetermined ramping scheme by controlling the output from the power source.12. The breaker machine according to claim 11 , wherein the power source comprises an electric motor.13. The breaker machine according to claim 11 , wherein the ...

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Номер записи: 53
24-01-2019 дата публикации

ASSIST GRIP HANDLE

Номер: US20190023166A1
Автор: Saito Akihiko, Takenaka Shinpei
Принадлежит: HONDA ACCESS CORP.

Provided is an assist grip handle storing an escape hammer. The handle is to be attached to an interior space of a vehicle, and includes a bar-shaped grip portion; a curved portion continuous with at least one end of the grip portion; and an attachment portion continuous with the curved portion and attached to an interior member of the vehicle. Since provided inside the grip portion is a storage portion continuous with an opening section formed at the curved portion side, and an escape hammer is stored in the storage portion, the hammer can be stored in the handle in a compact manner. Since there are provided a biasing member biasing the hammer toward the opening section side; a regulation portion for regulating the hammer; and a push button for releasing the restriction by the regulation portion, the hammer can be easily installed in and removed from the handle. 1. An assist grip handle attached to an interior space of a vehicle , comprising:a grip portion extending in the shape of a bar;a bent portion continuous with at least one end of the grip portion; andan attachment portion that is continuous with the bent portion and is attached to an interior member of the vehicle, whereina storage portion is provided inside the grip portion, the storage portion being continuous with an opening section formed at the bent portion side; and an escape hammer is stored in the storage portion.2. The assist grip handle according to further comprising:a regulation portion for restricting a movement of the escape hammer; andan operation portion for releasing the restriction by the regulation portion.3. The assist grip handle according to claim 1 , wherein the escape hammer has a slanted surface portion formed on at least one end side of the escape hammer claim 1 , and the slanted surface portion composes a part of the bent portion.4. The assist grip handle according to claim 1 , wherein the bent portion is formed at both sides of the grip portion claim 1 , the opening section is ...

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Номер записи: 54
23-01-2020 дата публикации

LUBRICANT-IMPREGNATED BUSHING FOR IMPACT TOOL

Номер: US20200023503A1
Автор: Cai Qiao, Dedrickson Ryan Allen, HU Guang, Malak Peter, Sande Michael R., Xu Wei Chao, Zeng Fan Bin
Принадлежит:

A power tool includes a housing having a motor housing portion and a front casing coupled to the motor housing portion. The power tool also includes an electric motor positioned within the motor housing portion, a drive assembly having an output shaft to which a tool element for performing work on a workpiece is attachable, and a powdered metal bushing disposed within the front casing that rotatably supports the output shaft. 1. A power tool comprising:a housing including a motor housing portion and a front casing coupled to the motor housing portion;an electric motor positioned within the motor housing portion;a drive assembly including an output shaft to which a tool element for performing work on a workpiece is attachable; anda powdered metal bushing disposed within the front casing, the bushing rotatably supporting the output shaft.2. The power tool of claim 1 , wherein the bushing is impregnated with lubricant such that the bushing is self-lubricating.3. The power tool of claim 2 , wherein the lubricant is an oil.4. The power tool of claim 2 , wherein the bushing has an impregnation ratio between about 5% and about 25%5. The power tool of claim 5 , wherein the bushing has an impregnation ratio between about 10% and about 20%.6. The power tool of claim 1 , wherein the bushing is insert-molded within the front casing.7. The power tool of claim 1 , wherein the output shaft is an anvil claim 1 , and wherein the drive assembly further includesa camshaft configured to receive torque from the electric motor,a hammer configured to impart consecutive rotational impacts upon the anvil, anda gear assembly coupled between the electric motor and the cam shaft, wherein the gear assembly is at least partially housed within the front casing.8. The power tool of claim 7 , further comprising a bit holder coupled to the anvil claim 7 , wherein the bit holder projects from the front casing.9. The power tool of claim 1 , further comprising a handle housing portion extending from ...

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Номер записи: 55
02-02-2017 дата публикации

Lubrication system for Hydraulic Hammer

Номер: US20170028541A1
Автор: Cody T. Moore
Принадлежит: Caterpillar Inc

A lubrication system for a hydraulic hammer is disclosed. The lubrication system includes a housing having a first chamber, and a control valve, disposed proximal to a first end of the first chamber, moveable from a closed position to an open position. A piston is received within the first chamber and moveable between a first position and a second position. The piston includes a first end having a cavity, and a second end facing towards a second chamber, which receives hydraulic fluid therein. In the second position, when the first chamber is filled with air in the first position of the piston, the cavity defined at the first end of the piston maintains pressure of the air less than a biasing force of a resilient member that keeps the control valve in the closed position.

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Номер записи: 56
02-02-2017 дата публикации

Method and Device for Monitoring the Ramming of a Ram Post into the Ground

Номер: US20170030042A1
Автор: Habdank Martin
Принадлежит:

The invention relates to a method for monitoring the ramming of a ram post () into the ground. A succession of blows are struck on the ram post () via an impact driving device (), causing the ram post () to be rammed into the ground. Parameters for the load-bearing capacity of the ram post () in the ground are ascertained during the ramming of the ram post () via a monitoring unit (). 111311114. Method for monitoring the ramming of a ram post () into the ground , characterized in that a succession of blows are struck on the ram post () via an impact driving device () , causing the ram post () to be rammed into the ground , and that parameters for the load-bearing capacity of the ram post () in the ground are obtained during the ramming of the ram post () via a monitoring unit ().21. Method according to claim 1 , characterized in that the number of blows that are required to ram the ram post () to a pre-determined target depth in the ground is obtained as a parameter for the load-bearing capacity.31. Method according to claim 1 , characterized in that the distance to which the ram post () is rammed into the ground with a pre-determined number of blows is determined as a parameter for the load-bearing capacity.41. Method according to claim 2 , characterized in that the force exerted during the individual blows on the ram post () is constant.511. Method according to claim 1 , characterized in that the forces exerted on the ram post () during the individual blows are obtained as parameters for the load-bearing capacity and the penetration depth of the ram post () into the ground brought about by the respective blows is determined.6. Method according to claim 1 , characterized in that the parameters that are obtained are compared to reference values.713111411. Device for monitoring the ramming of a ram post () into the ground claim 1 , with an impact driving device () claim 1 , via which a succession of blows is struck on the ram post () claim 1 , causing the ram post () ...

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Номер записи: 57
17-02-2022 дата публикации

ELECTRIC WORKING MACHINE

Номер: US20220048176A1
Автор: Abe Satoshi, Hashimoto Hideyuki, Matsushita Akira, Nishikawa Tomomasa, Yamazaki Shingo
Принадлежит:

The present invention provides an electric working machine in which a control board can be disposed without limitations based on a length of a brushless motor in a direction along an axial line. The electric working machine comprises: a brushless motor provided with a rotor and a stator; a motor case and a motor housing in which the brushless motor is stored; a control board which is provided outside of the motor housing in a radial direction of an axial line defined at the center of the rotor, and supports the switching elements; a connection board which is provided in the motor case, and supports the sensors; a through hole provided on the motor case; a through hole provided on the motor housing; and leads and signal lines extending from inside of the motor housing to the outside of the motor housing through the holes. 1. An electric working machine comprising:a motor including an output shaft;a motor case having a cylindrical shape extending in parallel with a first axis of the output shaft, the motor case accommodating the motor, the motor case comprising a side wall surrounding the motor and a bottom disposed at one end of the side wall;a first control unit comprising first circuit elements to control the motor, the first control unit being disposed outside the side wall of the motor case;a second control unit comprising second circuit elements to control the motor, the second control unit being disposed inside the side wall of the motor case;a fan disposed inside the side wall of the motor case, the fan rotating when the output shaft is driven;a housing at least partially covering the motor case; andan electric path connecting the first circuit elements with the second circuit elements,wherein the motor case has a first opening in the bottom and a second opening in the side wall,wherein the electric path passes through the second opening, andwherein the electric working machine has a first air path connecting outside of the housing and inside of the motor case ...

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Номер записи: 58
17-02-2022 дата публикации

Hand-Held Power Tool

Номер: US20220048177A1
Автор: Bayha Timo, Heinen Patrick, Koalick Jan, Mutlu Nadine, Schmid Lars, Weiss Michael
Принадлежит:

A hand-held power tool includes a housing in which a drive unit and an impact-mechanism unit are arranged. The hand-held power tool further includes a tool-receiver interface configured to releasably connect with a tool receiver, the tool receiver configured as a stirrer-basket receiver. A user interface is configured to set at least one of a rotary-hammer mode and a stirring mode for the hand-held power tool. 1. A hand-held power tool , comprising:a housing in which a drive unit and an impact-mechanism unit are arranged;a tool-receiver interface configured to releasably connect with a tool receiver, the tool receiver configured as a stirrer-basket receiver; anda user interface configured to set at least one of a rotary-hammer mode and a stirring mode.2. The hand-held power tool according to claim 1 , wherein the user interface is further configured to set an idling rotational speed of the hand-held power tool to a first value.3. The hand-held power tool according to claim 2 , wherein the user interface is further configured to set the idling rotational speed of the hand-held power tool to a second value claim 2 , the second value different from the first value.4. The hand-held power tool according to claim 1 , wherein the user interface is further configured to set a working rotational speed of the hand-held power tool to a first value.5. The hand-held power tool according to claim 4 , wherein the user interface is further configured to set the working rotational speed of the hand-held power tool to a second value claim 4 , the second value different from the first value.6. The hand-held power tool according to claim 1 , further comprising:a battery interface configured to connect to a battery pack.7. The hand-held power tool according to claim 1 , further comprising:a communication unit configured to communicate with an external device.8. The hand-held power tool according to claim 7 , wherein the communication unit is configured to communicate wirelessly with the ...

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Номер записи: 59
31-01-2019 дата публикации

HAMMER DRILL AND SET TOOL DEVICE

Номер: US20190030701A1
Автор: Duggan Ryan
Принадлежит:

A power tool that can switch from a hammer drill to a set tool for placing anchors in a surface such as concrete. Changing from a rotating drill to set tool bits is done by a two finger snap lock handle on the top of the drill. A magazine attachable to the power tool contains a plurality of anchors allowing the user of the power tool to set more than one anchor without having to manually place each anchor in the power tool. 1. A power tool , comprising:a first rotating head;a second rotating head;a base shaft;a first connecting shaft;a second connecting shaft;the first rotating head configured to receive a drill bit;the second rotating head configured to receive a set tool;the base shaft configured to be rotated by a motor;the power tool has a first position and a second position;the first position connects the first connecting shaft to the base shaft;wherein the rotation of the base shaft rotates the first connecting member and the first rotating head;the second position connects the second connecting shaft to the base shaft;wherein the rotation of the base shaft rotates the second connecting member and the second rotating head.2. The power tool of claim 1 , further comprising:a loading platform configured to hold an anchor;the loading platform movable from a first position to a second position;wherein the anchor is loadable on to the set tool in the second position of the loading platform.3. The power tool of claim 2 , further comprising:a motor configured to rotate at least a portion of the loading platform to thread the anchor onto a threaded portion of the anchor.4. The power tool of claim 3 , further comprising:a plurality of anchors;the plurality of anchors are held within a magazine;the magazine selectively attachable to a main body of the power tool.5. The power tool of claim 4 , wherein:the motor is a button motor.6. The power tool of claim 5 , further comprising:a spring that assists in the loading of an anchor on to the loading platform.7. The power tool ...

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Номер записи: 60
01-05-2014 дата публикации

Rotary hammer

Номер: US20140116739A1
Автор: Andrew J. Weber, Benjamin Ludy
Принадлежит: Milwaukee Electric Tool Corp

A rotary hammer includes a motor, a spindle coupled to the motor for receiving torque from the motor, a piston at least partially received within the spindle for reciprocation therein, a striker received within the spindle for reciprocation in response to reciprocation of the piston, and an anvil received within the spindle and positioned between the striker and a tool bit. The rotary hammer also includes a retainer received within the spindle for selectively securing the striker in an idle position in which it is inhibited from reciprocating within the spindle, and an O-ring positioned between the retainer and the spindle. The O-ring is disposed around an outer peripheral surface of the anvil. The O-ring is compressible in response to the striker assuming the idle position. The compressed O-ring imparts a frictional force on the outer peripheral surface of the anvil to decelerate the anvil.

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Номер записи: 61
30-01-2020 дата публикации

Heatsink Structure for Pile Driver

Номер: US20200030956A1
Автор: Huang Chuan-Shan
Принадлежит:

A heatsink structure for a pile driver includes a rotation seat, a pivot base, a pile driver gear unit, and at least one radiating pipe. The rotation seat is pivotally connected with the pivot base. The pile driver gear unit is mounted in the pivot base and includes a receiving space and a vibration device. A pump device is mounted in the receiving space of the pile driver gear unit. The at least one radiating pipe is mounted on the pivot base. Thus, the lubricating oil in the receiving space of the pile driver gear unit is pumped by the pump device during operation and is delivered to the at least one radiating pipe so that the at least one radiating pipe cools down and carries away the heat of the lubricating oil. 1. A heatsink structure comprising:a rotation seat, a pivot base, a pile driver gear unit, and at least one radiating pipe;wherein:the rotation seat is pivotally connected with the pivot base;the pivot base is provided with a mounting section;the pile driver gear unit is mounted in the mounting section of the pivot base and includes a receiving space and a vibration device;the vibration device includes two drive shafts;the pile driver gear unit includes an inlet hole and an outlet hole;the inlet hole of the pile driver gear unit is connected to the receiving space;a pump device is mounted in the receiving space of the pile driver gear unit and includes an inlet port, an outlet port, a receiving recess, a rotation shaft, a through hole, a driven member and at least one guiding member;the inlet port of the pump device is connected to the receiving space of the pile driver gear unit and connected to the receiving recess;the outlet port of the pump device is connected to the outlet hole of the pile driver gear unit and connected to the receiving recess;the rotation shaft of the pump device is pivotally mounted in the through hole;the at least one guiding member of the pump device is mounted in the receiving recess and connected with a lower end of the ...

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Номер записи: 62
04-02-2021 дата публикации

NOVEL CARTRIDGE MAINTENANCE SYSTEM FOR A MIXING TAP

Номер: US20210031352A1
Автор: Spirou Chris
Принадлежит:

A cartridge maintenance system for freeing a seized cartridge in a tap features a water tap having a cartridge located therein. The system features a linear, spring-biased slide hammer with a linear shaft. A gripping handle is located on a shaft second end. A slide weight features a channel located there through. A spring is located on the shaft first end between the gripping handle and the slide weight. The slide weight is biased in a static position at a linear shaft first end. A threaded adapter is located on the linear shaft first end. The slide hammer is screwed into a threaded aperture of the cartridge via the mated threaded adapter until snug. The slide weight is pulled away from the linear shaft first end, then released to create an impact The impact is transferred to the cartridge for freeing seized parts in the cartridge. 1100100. A cartridge maintenance system () for freeing a seized cartridge in a tap , wherein the system () comprises:{'b': '112', '(a) a water tap having a valve with a cartridge () disposed therein; and'}{'b': 120', '130', '131', '132', '140', '132', '135', '131', '130', '152', '140', '135', '150', '130', '152', '160', '130', '140', '150', '150', '131', '136', '170', '131', '135, 'claim-text': {'b': 120', '113', '112', '170', '150', '135', '132', '135', '160', '112', '112', '170', '113, 'wherein the slide hammer () is rotatably screwed into a threaded aperture () of the cartridge () via the mated threaded adapter () until snug, wherein the slide weight () is pulled away from the stop () toward the shaft second end (), then released to create an impact upon colliding with the stop () via the loaded spring (), wherein the impact is transferred to the cartridge () for freeing seized parts in the cartridge () via the threaded adapter () interfacably connecting to the threaded aperture ().'}, '(b) a linear spring-biased slide hammer () comprising a linear shaft () having a shaft first end () and a shaft second end (), wherein a gripping ...

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Номер записи: 63
30-01-2020 дата публикации

NAIL PUNCHING MACHINE FOR DRIVING IN OR PULLING OUT RAIL SPIKES OF A RAIL TRACK

Номер: US20200032461A1
Автор: Widlroither Otto
Принадлежит:

A nail punching machine for driving in or pulling out rail spikes comprises a driving mechanism, which is driven by means of an electric drive motor. The electric drive motor is supplied with electric power by means of an accumulator. The nail punching machine is held by an operator by means of at least one handle. 1. A nail punching machine for one of the group of driving in and pulling out rail spikes of a rail track , comprisingat least one handle for holding the nail punching machine,a driving mechanism for driving a rail spike,an electric drive motor for driving the driving mechanism, andan accumulator for supplying the electric drive motor with electric power.2. The nail punching machine according to claim 1 , comprising a vibration decoupling device for decoupling vibrations of the at least one handle and the driving mechanism.3. The nail punching machine according to claim 2 , wherein the vibration decoupling device has at least one vibration damper for configuring a decoupling plane between the driving mechanism and the at least one handle.4. The nail punching machine according to claim 2 , wherein the driving mechanism and the electric drive motor are arranged on a working side of a decoupling plane configured by the vibration decoupling device.5. The nail punching machine according to claim 2 , wherein the at least one handle and the accumulator are arranged on an operating side of a decoupling plane configured by the vibration decoupling device.6. The nail punching machine according to claim 5 , wherein the accumulator is exchangeably mounted to a supporting frame and connected with a handle.7. The nail punching machine according to claim 2 , wherein a control device is arranged on an operating side of a decoupling plane configured by the vibration decoupling device.8. The nail punching machine according to claim 2 , wherein claim 2 , exclusively claim 2 , lines are running through a decoupling plane configured by the vibration decoupling device.9. The ...

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Номер записи: 64
11-02-2016 дата публикации

Multi-functional car power receptacle having lifesaving tool

Номер: US20160038773A1
Автор: Shiyu Sun
Принадлежит: SHANGHAI EASY-USE TOOLS ENTERPRISE Co Ltd

A multi-functional car power receptacle having a lifesaving tool includes a handle for providing a receptacle and a function head connected to a front end of the handle. The function head comprises a glass smasher and a power plug. The function head and the front end of the handle are connected through a rotation shaft, enabling the function head to pivot about the rotation shaft for changing an end of the function head to be used. The power plug is electrically connected with the handle through electric wires of the rotation shaft. The function head of the present invention combines the glass smasher with the power plug. The present invention is provided with a seat belt cutter for the driver to cut the seat belt in an emergency. The handle is provided with a magnet and a warning light.

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Номер записи: 65
09-02-2017 дата публикации

HAMMER ASSEMBLY

Номер: US20170036336A1
Автор: Moore Cody T.
Принадлежит: CATERPILLAR INC.

A hammer assembly used in a machine is described. The hammer assembly comprises a power member, a tool member, and a housing member. The housing member includes a first set of channels and a second set of channels. The first set of channels is disposed along a first axis and the second set of channels is disposed along a second axis in an orthogonal direction with respect to the first axis. The hammer assembly is rotated by an angle to make use of any one of the first set of channels or the second set of channels. The first set of channels is shaped to receive a first set of pins and the second set of channels is shaped to receive a second set of pins for engagement of the housing member and the tool member. 1a power member adapted to operate a tool member; and a first set of channels disposed along a first axis of the housing member; and', 'a second set of channels disposed along a second axis in an orthogonal direction with respect to the first axis of the housing member, such that the second set of channels intersects with at least a portion of the first set of channels,, 'a housing member for enclosing the power member and the tool member, the housing member includingwherein the hammer assembly is adapted to be rotated by an angle to make use of any one of the first set of channels or the second set of channels, and wherein the first set of channels is shaped to receive a first set of pins and the second set of channels is shaped to receive a second set of pins for engagement of the housing member and the tool member, such that the first set of channels has an oval cross-section and the second set of channels has a circular cross-section.. A hammer assembly used in a machine, the hammer assembly comprising: The present disclosure relates to hammer assemblies, and more specifically, to an improved hammer assembly used in a machine.A variety of machines are used for performing various material breaking operations. Such machines employ a hammer assembly for ...

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Номер записи: 66
08-02-2018 дата публикации

Rubber Mallet

Номер: US20180036872A1
Автор: SU CHENG-WEI
Принадлежит:

A rubber mallet includes a handle and a striking head. The striking head includes an outer body and an inner body within the outer body. The outer body defines a receiving space receiving the inner body. The outer and inner bodies are made of different materials. 1. A rubber mallet comprising:a handle;a striking head including an outer body and an inner body disposed within the outer body, wherein the outer body defines a receiving space receiving the inner body, wherein the outer and inner bodies are made of different materials, wherein the outer body defines a hole, and wherein the handle has an end fixed to the inner body and another end protruding outside of the outer body and disposed outside of the hole.2. The rubber mallet as claimed in claim 1 , wherein the inner body includes recycled material as a constituent material.3. The rubber mallet as claimed in ° claim 2 , wherein the inner body includes constituent materials including styrene-ethylene-butylene-styrene claim 2 , paraffin oil claim 2 , polypropylene claim 2 , calcium carbonate claim 2 , and black organic pigment.4. The rubber mallet as claimed in claim 2 , wherein the outer body includes constituent materials including styrene-ethylene-butylene-styrene and paraffin oil.5. The rubber mallet as claimed in claim 3 , wherein the outer body includes constituent materials including styrene-ethylene-butylene-styrene and paraffin oil.6. The rubber mallet as claimed in claim 1 , wherein the inner body defines a first positioning space and a second positioning space in communication with the first positioning space claim 1 , and wherein the handle inserts in the second positioning space.7. The rubber mallet as claimed in claim 1 , wherein the handle and the inner body are made in one piece.8. The rubber mallet as claimed in further comprising an inset balance disposed in the second positioning space.9. The rubber mallet as claimed in claim 8 , wherein the inset balance defines a hole receiving the handle.10. ...

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Номер записи: 67
24-02-2022 дата публикации

Hydraulic Hammering Device

Номер: US20220055196A1
Автор: Kaneko Tsutomu, KOBAYASHI Isao, MURAKAMI Susumu, Nagano Shinsuke, Shioda Atsushi
Принадлежит:

A hydraulic hammering device enables an auto-stroke mechanism and an idle strike prevention mechanism to coexist with a simple circuit configuration. The device includes a first control valve to control advancing and retracting movements of a piston, an auto-stroke mechanism and an idle strike prevention mechanism, and a second control valve to select either of the auto-stroke mechanism and the idle strike prevention mechanism. To the second control valve, a shared spool is slidably fitted and a mode selection means is disposed. When the mode selection means allows supply of pressurized oil to an auto-stroke setting portion of the shared spool and prohibits discharge of pressurized oil from an idle strike prevention setting portion, the auto-stroke mechanism is selected. When prohibiting supply of pressurized oil to the auto-stroke setting portion and allowing discharge of pressurized oil from the idle strike prevention setting portion, the idle strike prevention mechanism is selected. 1a cylinder;a piston slidably fitted into the cylinder in such a manner as to be capable of advancing and retracting;a first control valve to control advancing and retracting movements of the piston;an auto-stroke mechanism configured to switch a piston stroke of the piston between a regular stroke and a short stroke shorter than the regular stroke;an idle strike prevention mechanism configured to decompress an inside of a circuit configured to hydraulically drive the piston to lower than a working pressure; anda second control valve to select either mode of the auto-stroke mechanism and the idle strike prevention mechanism, wherein:to the second control valve, a shared spool including an auto-stroke setting portion and an idle strike prevention setting portion at the same time is slidably fitted,a mode selection means for allowing and cutting off both of supply of pressurized oil to the auto-stroke setting portion and discharge of pressurized oil from the idle strike prevention ...

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Номер записи: 68
24-02-2022 дата публикации

DRILLING TOOL

Номер: US20220055197A1
Автор: TADA Yoshiro, YOSHIKANE Kiyonobu
Принадлежит: MAKITA CORPORATION

A drilling tool includes a motor, a tool holder, a main housing, an elongate grip part, a hollow connection part and a detection device. The motor includes a motor shaft rotatable around a first axis. The tool holder is configured to be rotationally driven around a second axis extending parallel to the first axis and defining a front-rear direction. The grip part is behind the main housing and extends in a direction crossing the second axis. The grip part includes a first end portion located on the second axis and a second end portion spaced apart from the second axis. The connection part connects the second end portion and the main housing. The connection part and the grip part together form an annular part. The detection device is disposed in the connection part and configured to detect a rotation state of the main housing around the second axis. 1. A drilling tool configured to perform a drilling action of rotationally driving a tool accessory , the drilling tool comprising:a motor including a stator, a rotor, and a motor shaft, the motor shaft extending from the rotor and being rotatable integrally with the rotor around a first axis;a tool holder configured to removably hold the tool accessory, the tool holder being configured to be rotationally driven around a second axis by torque transmitted from the motor shaft, the second axis extending parallel to the first axis and defining a front-rear direction of the drilling tool;a main housing extending in the front-rear direction and housing the motor and the tool holder;an elongate grip part located behind the main housing and extending in a direction crossing the second axis, the grip part including a first end portion and a second end portion, the first end portion being located on the second axis, the second end portion being opposite to the first end portion and spaced apart from the second axis;a hollow connection part connecting the second end portion of the grip part and the main housing, the connection part ...

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Номер записи: 69
24-02-2022 дата публикации

POWER TOOL HAVING HAMMER MECHANISM

Номер: US20220055198A1
Автор: TADA Yoshiro, YOSHIKANE Kiyonobu
Принадлежит: MAKITA CORPORATION

A power tool includes a motor, a driving mechanism, a main housing, a handle housing, a first guide part and a second guide part. The handle housing is movable relative to the main housing at least in a front-rear direction. The first and second guide parts are configured to guide relative sliding between the main housing and the handle housing in the front-rear direction. Each of the first guide part and the second guide part includes a first engagement part and a second engagement part engaged with each other to be slidable in the front-rear direction. The main housing has the first engagement part. The handle housing has the second engagement part. The second guide part is spaced apart from the first guide part and located rearward of the first guide part in the front-rear direction. 1. A power tool having a hammer mechanism , the power tool comprising:a motor including a stator, a rotor, and a motor shaft, the motor shaft extending from the rotor and being rotatable integrally with the rotor around a first axis;a driving mechanism configured to perform a hammer action of linearly driving a tool accessory along a second axis using power generated by the motor, the second axis extending parallel to the first axis and defining a front-rear direction of the power tool;a main housing that houses the motor and the driving mechanism;an annular handle housing connected to the main housing via a first elastic member to be movable relative to the main housing at least in the front-rear direction, the handle housing including an elongate grip part located behind the main housing and extending in a direction crossing the second axis; anda first guide part and a second guide part configured to guide relative sliding between the main housing and the handle housing in the front-rear direction,wherein:each of the first guide part and the second guide part includes a first engagement part and a second engagement part that are engaged with each other to be slidable in the front- ...

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Номер записи: 70
07-02-2019 дата публикации

POWER TOOL

Номер: US20190039224A1
Автор: Webster Ian Frederick
Принадлежит:

A power tool including an impact tool, a body and an actuator. The actuator is operable to move the body along an operational axis from an impact position, at which the body is operable to transfer impact energy to a head end of the impact tool, to a retracted position spaced apart from the impact position along the operational axis. 1. A power tool , comprising:an impact tool having a head end; a first engagement land, and', 'a first engagement edge;, 'a first flange, comprising, 'a body, comprising an impact position at which the body is operable to transfer impact energy to the head end of the impact tool, and', 'a retracted position spaced apart from the impact position along the operational axis;', a first actuator rotational axis, and', 'a first engagement member offset from, and rotatable around, the first actuator rotational axis,, 'the first actuator, comprising, 'a plane defined by the operational axis and the first actuator rotational axis being coplanar with a surface of the first engagement edge;', [ travels along the first flange engagement land; and', 'simultaneously urges the body in a direction away from the body impact position toward the body retracted position; and, 'at the body impact position, the first engagement member is operable to engage with the first flange engagement edge, and as the first engagement member rotates around the first actuator rotational axis, the first engagement member'}, 'at the body retracted position the first engagement member is operable to move past the first flange engagement edge to disengage the body from the first engagement member, permitting the body to move on an impact stroke to the body impact position., 'the first engagement member and first flange being arranged relative to each such that], 'a first actuator configured to move the body along an operational axis between'}2. The power tool as claimed in claim 1 , wherein: a second engagement land, and', 'a second engagement edge; and, 'a second flange, ...

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Номер записи: 71
07-02-2019 дата публикации

STRIKING HAND-HELD MACHINE TOOL

Номер: US20190039225A1
Автор: BRITZ Rory, HARTMANN Markus
Принадлежит:

The invention relates to a striking hand-held machine tool having a tool holder for holding a striking tool on a working shaft, an electric motor, and a striking mechanism. In the striking direction, the striking mechanism has an exciter piston, a pneumatic chamber, a striker, an intermediate chamber and a rivet snap following one another. A closed channel connects a first channel opening in the pneumatic chamber and a second channel opening in the intermediate chamber. A non-return valve, which shuts off during an air flow from the first channel opening to the second channel opening and opens during an air flow from the second channel opening to the first channel opening, is arranged in the channel. Arranged on the second channel opening is a shut-off valve, which is forced into a position closing the second channel opening when the rivet snap is in the working position. 1. A hand-held percussion power tool , comprisinga tool holder for holding a percussion tool on a working axis;an electric motor;a percussion mechanism, comprising an exciter piston, a pneumatic chamber comprising a first channel opening, a percussion piston, an intermediate chamber comprising a second channel opening, and a rivet header sequentially arranged in a percussion direction;a closed channel, which connects the first channel opening in the pneumatic chamber and the second channel opening in the intermediate chamber;a check valve arranged in the closed channel, which blocks air flowing from the first channel opening to the second channel opening and opens to allow air to flow from the second channel opening to the first channel opening; and, a shut-off valve, which is arranged at the second channel opening and is forced into a position in which the shut-off valve seals the second channel opening the rivet header is in a working position.2. The hand-held power tool according to claim 1 , wherein a spool valve claim 1 , which is formed by a radial opening in the pneumatic chamber and the ...

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Номер записи: 72
07-02-2019 дата публикации

ELECTRICALLY POWERED TOOL

Номер: US20190039227A1
Автор: NAKAYAMA Kyouichi, Takeda Yuuki
Принадлежит: Koki Holdings Co., Ltd.

A rectifier circuit for rectifying an AC voltage supplied from a commercial power supply into a DC voltage, a smoothing capacitor for smoothing the output of the rectifier circuit, and an electrically powered tool for supplying the smoothed pulsating DC voltage to a motor by an inverter circuit, wherein when the motor is driven while no load is being applied to a tip tool, the smoothed DC voltage repeatedly generates a maximal value and a minimum value so as to synchronize with the fluctuation in the AC voltage. During no-load rotation, control is performed so that driving is performed at a value that is less than a threshold value Dfor the duty ratio at which the generation of a gear sound starts in any of the speed dial setting values -. It is thereby possible to suppress a gear sound generated by a power transmission mechanism during no-load rotation. 1. An electrically powered tool comprising:a rectifier circuit configured to rectify an AC voltage supplied from a commercial power supply to a pulsating DC voltage,a smoothing circuit having a smoothing capacitor configured to reduce a pulsation state of the pulsating DC voltage,a circuit configured to supply the smoothed DC voltage to a motor, anda power transmission mechanism configured to transmit a driving force of the motor to a tip tool,wherein a current continuously flows to the motor when the motor is driven in a state in which no load is applied to the tip tool, and in a state in which a load is applied to the tip tool, when the load applied to the tip tool is increased, the current flowing to the motor becomes intermittent.2. The electrically powered tool according to claim 1 , wherein the power transmission mechanism comprises a deceleration mechanism using a plurality of gears.3. The electrically powered tool according to claim 1 , wherein a switching element provided between the smoothing circuit and the motor and configured to control a voltage supplied to the motor claim 1 , and a controller ...

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Номер записи: 73
06-02-2020 дата публикации

HAMMER DRILL

Номер: US20200039048A1
Автор: GOTTSCHLING Rafael
Принадлежит:

A hammer drive mechanism for a hammer strike mechanism of a hammer drill is provided including: a drive shaft capable of being rotationally driven by a motor, a rod capable of reciprocatingly driving a piston, and a conversion mechanism that converts the rotary movement of the drive shaft into a reciprocating movement of the rod. The drive shaft comprises a first part connected to the conversion mechanism and a second part capable of being rotationally driven by a motor. The second part connects to the first part via at least one dampener such that rotary movement of the second part is transferred to the first part via the at least one dampener. 1. A hammer drive mechanism for a hammer strike mechanism of a hammer drill comprising:a drive shaft rotationally driven by a motor;a rod configured to reciprocatingly drive a piston; anda conversion mechanism configured to convert a rotary movement of the drive shaft into a reciprocating movement of the rod,wherein the drive shaft comprises a first part connected to the conversion mechanism and a second part rotationally driven by the motor, the second part connecting to the first part via at least one dampener such that a rotary movement of the second part is transferred to the first part via the at least one dampener.2. The hammer drive mechanism of claim 1 , wherein at least one of the at least one dampener comprises resiliently deformable material.3. The hammer drive mechanism of claim 1 , wherein at least one of the at least one dampener comprises a mechanical spring.4. The hammer drive mechanism of claim 1 , wherein the conversion mechanism is a crank mechanism.5. The hammer drive mechanism of claim 4 , wherein:the crank mechanism comprises a crank pin mounted eccentrically on the first part of the drive shaft,one end of the rod is pivotally attached to the crank pin, andthe rod extends away from the crank pin in a direction that is perpendicular to an axis of rotation of the drive shaft.6. The hammer drive mechanism ...

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Номер записи: 74
07-02-2019 дата публикации

UNIVERSAL DIRECT MEASUREMENT DEPTH GAUGE

Номер: US20190041195A1
Автор: EL ZOGHBI Gaser
Принадлежит:

A depth gauge device including a body extending a central longitudinal axis and including a channel and a light-passing hole, the light passing hole open to the channel, a light source mounted in the body for generating a light beam, the light beam passing through the light-passing hole toward a surface of a drill-bit extending through the channel, the light beam forming an incident light beam when reflected away from the drill-bit surface, an image sensor mounted in the body for sensing the incident light beam and generating a plurality of successive images of the drill-bit surface to detect variations in the position of the drill-bit moving through the channel and an clamp coupled to the body, the clamp including a plurality of adjustable arms configured to clamp the device to a protection sleeve. 1. A depth gauge device , comprising:a body extending a central longitudinal axis and including a channel and a light-passing hole, the light passing hole open to the channel;a light source mounted in the body for generating a first light beam, the first light beam passing through the light-passing hole toward a surface of a drill-bit extending through the channel, the first light beam forming an incident light beam when reflected away from the drill-bit surface;an image sensor mounted in the body for sensing the incident light beam and generating a plurality of successive images of the drill-bit surface to detect variations in the position of the drill-bit moving through the channel; anda clamp coupled to the body, the clamp including a plurality of adjustable arms configured to clamp the device to a protection sleeve.2. The device of claim 1 , wherein the clamp further comprises a rotatable clamp adjustment mechanism claim 1 , wherein rotating the adjustment mechanism in a first direction moves the plurality of arms toward the central longitudinal axis and rotating the adjustment mechanism in a second direction moves the plurality of arms away from the central ...

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Номер записи: 75
18-02-2016 дата публикации

Automatic Lubrication System with Detune

Номер: US20160046009A1
Автор: Cody Moore
Принадлежит: Caterpillar Inc

Lubrication system includes a drive fluid valve member and a detune valve member. The drive fluid valve member is movable from a first to a second position in response to drive fluid pressure to reduce the volume of a variable volume lubricant charge chamber. The detune valve member is movable from a first to a second position in response to lubricant pressure within the lubricant charge chamber, and is adapted to permit fluid communication between inlet and bypass fluid passages in its the first position and to disengage the fluid connection in its second position.

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Номер записи: 76
16-02-2017 дата публикации

WORK TOOL

Номер: US20170043466A1
Автор: FUJIMOTO Goya, KANBE Kuniaki, KOBAYASHI Ryusuke, Satou Shinichirou, TANABE Daijiro
Принадлежит: HITACHI KOKI CO., LTD.

The disclosure provides a work tool having an electric motor, a power transmission means that receives motive power from the electric motor and transmits the motive power to a tip tool, a gear housing for accommodating at least a portion of the power transmission means, weights swingably supported on the gear housing, and coil springs that function as an urging means for urging the weights such that the weights are located at an initial neutral position, wherein the weights and the coil springs are provided respectively on the two sides of the gear housing so as to put the power transmission means therebetween, and a rotational support axle is provided that functions as a connecting means for connecting the weights provided on both sides of the gear housing so as to connect the weights such that the weights swing integrally. 1. A work tool , comprising:a motor;a power transmission means, receiving motive power of the motor and transmitting the motive power to a tip tool;a housing, accommodating at least a portion of the power transmission means;weights, swingably supported by the housing; andan urging means, urging the weights such that the weights are located at an initial neutral position, wherein for the work tool;the weights are respectively disposed to two sides of the housing to put the power transmission means therebetween,the work tool comprises a connection means, and the connection means connects the weights respectively disposed to the two sides of the housing, such that the weights swing integrally.2. The work tool as claimed in claim 1 , wherein:the connection means is an axle component that swingably supports the weights respectively disposed to two side surfaces of the housing.3. The work tool as claimed in claim 2 , wherein:the axle component is rotatably supported by a through hole formed in the housing, and the axle component and the weights are supported unrotatably in a swing direction.4. The work tool as claimed in claim 2 , wherein:the power ...

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Номер записи: 77
15-02-2018 дата публикации

HAMMER DRILL ADAPTORS AND METHODS OF USE

Номер: US20180043520A1
Автор: Aho Ronald
Принадлежит:

A hammer drill adapter for driving a drive cleat to join opposed ends of a duct comprising: a first portion generally aligned in a plane; a shaft portion having an elongate axis generally parallel to said plane; the first portion fixed to the shaft portion; an entry surface at a distal end of the first portion; a capture cavity extending through the entry surface; the capture cavity defined proximally by a rear surface and by an opposed lower and upper capture surfaces; the capture cavity also laterally defined by an opposed first capture surface and a second capture surface; the capture cavity sized to house a trailing end portion of a drive cleat; and wherein the shaft portion comprises a connection portion at a proximal end of said shaft portion for fixation within a hammer drill chuck. Also disclosed are methods for use to advance a drive cleat. 1) A hammer drill adapter for driving a drive cleat to join opposed ends of a duct comprising:a first portion generally aligned in a plane;a shaft portion having an elongate axis generally parallel to said plane;said first portion fixed to said shaft portion;an entry surface at a distal end of said first portion;a generally rectangular capture cavity extending through said entry surface into said first portion;said capture cavity defined proximally by a rear surface;said capture cavity defined by an opposed lower capture surface and an upper capture surface;said lower capture surface spaced from said upper capture surface;said capture cavity laterally defined by an opposed first capture surface and a second capture surface;said first capture surface spaced from said second capture surface;said capture cavity sized to house an end portion of a drive cleat;said shaft portion comprising a first connection portion at a proximal end of said shaft portion for fixation within a hammer drill chuck;said first connection portion in the form of an elongate groove;wherein said first connection portion elongate groove is closed at ...

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Номер записи: 78
15-02-2018 дата публикации

SAFETY METHOD AND HANDHELD POWER TOOL

Номер: US20180043521A1
Автор: DRAGANIS Antonios, Gillmeier Bernd, Hricko Peter, Manschitz Erwin, MOESSNANG Franz, SCHAER Roland
Принадлежит:

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 ...

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Номер записи: 79
03-03-2022 дата публикации

Portable power tool

Номер: US20220063078A1
Автор: BRITZ Rory, HARTMANN Markus, ONTL Rainer
Принадлежит:

The portable power chiseling tool has a tool holder, an electric motor, a striking mechanism and an idle strike catcher. The tool holder can receive a tool and retain it movably on a working axis. The striking mechanism includes an exciter piston, a striker, an anvil and a guide for the anvil. The exciter piston is coupled to the electric motor. The guide guides the anvil on the working axis. The idle strike catcher for the anvil has a conical inner surface facing the anvil. The anvil has an associated end face facing in the striking direction. The end face rests against the conical inner surface when the anvil is in its forwardmost position in the striking direction. The end face of the anvil has a first segment and a second segment in the circumferential direction. The second segment is offset in the striking direction relative to the first segment.

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Номер записи: 80
14-02-2019 дата публикации

CUTTING INSERT WITH INTERNAL COOLING, MOLD AND METHOD FOR MANUFACTURE THEREOF

Номер: US20190047054A1
Автор: Harif Gershon
Принадлежит:

A cutting insert is provided, comprising a top surface, a bottom surface, a plurality of side surfaces spanning therebetween, and a cutting edge formed at an intersection of the side surface and a forwardly-disposed portion of the top the surface. It further comprises a cooling cavity projecting into the insert, a top end thereof being disposed further forwardly than an open bottom end thereof. The cooling cavity defines at least one molding axis such that a solid element having the shape of the cooling cavity and completely inserted therein may be retracted intact therefrom along a linear path parallel to the molding axis. A circumscribing portion is formed on the side surfaces encircling the cutting insert. The circumscribing portion is formed parallel to the molding axis and has a non-zero height along its entire extent. The cutting insert does not extend beyond the circumscribing portion. 1. A cutting insert , comprising:a top surface, a bottom surface, and a plurality of side surfaces spanning therebetween;a cutting edge formed at an intersection of said side surface and a forwardly-disposed portion of said top said surface;a cooling cavity projecting into the cutting insert and spanning between an open bottom end formed in said bottom surface and a top end, the top end of the cooling cavity being disposed further forwardly than a forward-most portion of the bottom end thereof, said cooling cavity defining one or more molding angles, with respect to said bottom surface, along which a molding axis may lie, wherein a solid element having the shape of the cooling cavity and completely inserted therein may be retracted intact therefrom along a linear path parallel to said molding axis; anda circumscribing portion formed on said plurality of side surfaces and encircling said cutting insert, wherein the circumscribing portion is formed parallel to said molding axis and has a non-zero height, in a direction parallel to said molding axis, along an entire extent thereof ...

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Номер записи: 81
14-02-2019 дата публикации

AUTOMOTIVE SAFEY DEVICE

Номер: US20190047327A1
Автор: Petrucelli Steven
Принадлежит: Measurement Ltd.

An automotive safety device includes a housing and a removable support assembly having a base and support members pivotally attached to the base and moveable between a first, closed position and a second, open position. Each support member is arranged directly adjacent to an outer surface of the housing in the first position. In the second position, the support members allow the device to be freestanding. A first light source is arranged on the housing such that the device may function as an emergency roadside light. The device further includes a tire pressure gauge, including a pressure sensor, a processor, and a display, wherein the processor is configured to output a value on the display indicative of a measured pressure. 1. An automotive safety device comprising:a housing including a first light source; and a unitary support base configured for mounting to to the housing in a first configuration having a first orientation with respect to the housing and in a second configuration having a second orientation with respect to the housing; and', 'a plurality of support members movably attached to the support base and moveable between a first position and a second position, each of the plurality of support members being arranged adjacent to an outer surface of the housing in the first position when the support base is mounted to the housing in the first configuration, and each of the plurality of support members extending outward from the housing in the second position when the support base is mounted to the housing in the second configuration, whereby the support assembly defines a freestanding support structure when the support base is mounted to the housing in the second configuration., 'a support assembly removably mountable to the housing, the support assembly comprising2. The device of claim 1 , wherein the housing further includes:at least one processor;a pressure sensor;a nozzle arranged on the housing and in communication with the pressure sensor, the nozzle ...

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Номер записи: 82
25-02-2021 дата публикации

Impact tool with vibration isolation

Номер: US20210053201A1
Автор: Madan Mandal, Mark T. McClung
Принадлежит: Ingersoll Rand Industrial US Inc

An impact tool is provided with vibration isolators to reduce vibrations felt by the operator gripping the handle of the tool. The impact tool has a hammer and an anvil that impact against each other during use. The impacts create undesirable vibrations in the tool housing and noise in the work area. The isolators are useful in minimizing such vibrations and noise.

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Номер записи: 83
13-02-2020 дата публикации

POWER TOOL

Номер: US20200047321A1
Автор: HEIMRICH Tim
Принадлежит:

A power tool comprises a housing and an electric motor disposed in the housing. A rotary output is driven by the motor. Electronic sensor configured to sense operating parameters of the power tool includes a voltage sensor arranged to detect the voltage across the electric motor, a current sensor arranged to detect the current through the tool, and a speed sensor arranged to detect the angular velocity ω of the output spindle. Electronic control apparatus is configured to determine from the operating parameter output signals the torque M of the rotary output and control the angular velocity of the rotary output in response to the calculation of the torque of said rotary output. 1. A power tool comprising:a housing;an electric motor disposed in the housing;a rotary output driven by said electric motor;electronic sensor configured to sense operating parameters of the power tool including the voltage across the electric motor, the current drawn by the power tool and the angular velocity of the rotary output and provide parameter output signals derived from said sensed operating parameters; andan electronic control apparatus configured to determine from said operating parameter output signals the torque of said rotary output and control the angular velocity of the rotary output in response to the calculation of the torque of said rotary output.2. A power tool according to claim 1 , wherein said electronic control apparatus determines the torque of said rotary output by calculating a function of a tool efficiency claim 1 , the voltage across the electric motor claim 1 , the current through the power tool and the inverse of the angular velocity of the rotary output provided by said operating parameter output signals.3. A power tool according to claim 2 , wherein said tool efficiency is provided to said electronic control apparatus from data in a look up table.4. A power tool according to claim 2 , wherein said electronic control apparatus is configured to continuously or ...

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Номер записи: 84
13-02-2020 дата публикации

Electric tool

Номер: US20200052559A1
Автор: Akira Matsushita, Takahiro Hirai, Tomomasa Nishikawa, Yuta Noguchi
Принадлежит: Koki Holdings Co Ltd

Providing an electric tool with excellent cooling efficiency. An electric tool includes: a housing 2 ; a motor 3 ; a fan 34 ; a sensing portion 41 ; a switching portion 42 ; and a circuit board 40 . The motor 3 is accommodated in the housing 2 . The motor 3 includes a stator 33 , a rotor 32 , and a rotating shaft 31 . The rotor 32 is rotatable relative to the stator 33 . The rotating shaft 31 is rotatable together with the rotor 32 . The fan 34 is configured to generate a cooling air flow inside the housing 2 . The sensing portion 41 is configured to detect a rotated position of the rotor 32 . The switching portion 41 controls a rotation of the rotor 32 . The sensing portion 41 and the switching portion 42 are mounted on the circuit board 40 . The stator 33 , the fan 34 , the sensing portion 41 , the switching portion 42 , and the circuit board 40 are arranged in the housing 2 along an axial direction of the rotor 32 in the order of the fan 34 , the sensing portion 41 , the circuit board 40 , the switching portion 42 , and the stator 33.

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Номер записи: 85
02-03-2017 дата публикации

Dust Extractor

Номер: US20170057037A1
Автор: Arthur Lauer
Принадлежит: Black and Decker Inc

A dust extractor for a drill includes a housing having an engagement region for receiving the drill when connected to the dust extractor; and a latch mechanism. The latch mechanism includes a latch moveably mounted within the housing and moveable between a first position and a second position, a biasing mechanism biasing the latch towards the first position, and a catch attached to the latch. The catch has a chamfer which is arranged so that the chamfer slidingly engages the drill and moves the latch from its first position towards its second position when the drill enters the engagement region.

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Номер записи: 86
02-03-2017 дата публикации

HAND-HELD POWER TOOL

Номер: US20170057072A1
Автор: Holubarsch Markus, Kristen Ferdinand, Lederle Benjamin, SCHMID Stefan
Принадлежит:

A hand-held power tool has a tool socket to hold a tool on a working axis . A pneumatic striking mechanism 6 has an exciter piston that is forced to move periodically along the working axis by a motor and it also has a striker that is coupled to the exciter piston via a pneumatic chamber . The exciter piston has a cylindrical main body made of a polymer. One or more rings containing copper surround the main body . The rings protrude from the main body in the radial direction. 15-. (canceled)6. A hand-held power tool comprising:a tool socket to hold a tool on a working axis;a motor;a pneumatic striking mechanism having an exciter piston forced to move periodically along the working axis by the motor and also having a striker coupled to the exciter piston via a pneumatic chamber, the exciter piston having a cylindrical main body made of a polymer; andat least one ring containing copper surround the main body, the at least one ring protruding from the main body in the radial direction.7. The hand-held power tool as recited in wherein the at least one ring includes a plurality of rings and an outer diameter of the rings containing copper is between 0.2 mm and 1.0 mm claim 6 , and larger than an outer diameter of the main body.8. The hand-held power tool as recited in wherein the at least one ring includes a plurality of rings and the rings cover between 25% and 70% of the jacket of the main body.9. The hand-held power tool as recited in wherein the at least one ring includes a plurality of rings and a gap is provided between the rings along the working axis.10. The hand-held power tool as recited in wherein the exciter piston runs in a guide tube made of a polymer.11. The hand-held power tool as recited in wherein the at least one ring includes a plurality of rings protruding from the main body in the radial direction. The present invention relates to a hand-held power tool with a pneumatic striking mechanism, especially a hammer drill.A hand-held power tool of the ...

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Номер записи: 87
02-03-2017 дата публикации

SOCKET TOOL

Номер: US20170057073A1
Автор: HAUPTMANN Udo, Meixner Ralf
Принадлежит:

A tool socket 2 for a hand-held power tool has a tubular main body 17 and a dust cap 27. The main body 17 has an end face 19 that is adjoined by a cylindrical or prismatic outer surface 36. As seen in the insertion direction 20, the dust cap 27 consecutively has a sealing ring 28, a middle section 29 and a seat 30. As seen in the insertion direction 20, the sealing ring 28 is arranged in front of the end face 19 of the main body 17. The seat 30 has a cylindrical or prismatic inner surface 35 that is in contact with the outer surface 36 of the main body 17. The middle section 29 has a conical inner surface 39 whose inner diameter 40 decreases in the insertion direction 20 down to the inner diameter 37 of the seat 30. 16-. (canceled)7. A tool socket for a hand-held power tool , the tool socket comprising:a tubular main body having, coaxially to a working axis, a cylindrical or prismatic chamber, a tool insertable in an insertion direction into the chamber, the tubular main body having a cylindrical or prismatic outer surface adjoined by an end face, and with respect to the insertion direction, a dust cap, the dust cap having consecutively a sealing ring, a middle section and a seat, and with respect to the insertion direction, the sealing ring being arranged in front of the end face of the main body, the middle section being arranged so as to surround the main body, the seat having a cylindrical or prismatic inner surface and being arranged so as to be in contact with the outer surface of the main body,the middle section having a conical inner surface whose inner diameter decreases in the insertion direction down to an inner diameter of the seat.8. The tool socket as recited in wherein an inclination of the conical inner surface relative to the working axis is between 5° and 20°.9. The tool socket as recited in wherein a dimension of the conical inner surface along the working axis is greater than half of the inner diameter.10. The tool socket as recited in wherein a ...

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Номер записи: 88
04-03-2021 дата публикации

Hydraulic Hammer

Номер: US20210060751A1
Автор: Hatim Bookwala
Принадлежит: Deere and Co

A hydraulic hammer for a working machine configured for digging a surface includes a housing, a chisel, sensors, and a controller. The housing is coupled to the working machine. The chisel is partially enclosed by the housing and extendable from the housing for digging the surface at a contact location. Each of the sensors is configured for generating a signal indicative of a projecting distance between one of the sensors and the surface. The controller is configured for receiving the signals, determining an angle between the chisel and a plane substantially tangent to the contact location, and reorienting the chisel so that the chisel is substantially orthogonal to the contact location with the angle at substantially ninety degrees.

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Номер записи: 89
04-03-2021 дата публикации

POWER TOOL

Номер: US20210060754A1
Автор: INUI Ken, Tadokoro Naoki
Принадлежит: Koki Holdings Co., Ltd.

There is provided a power tool including a housing, a brushless motor, a power supply circuit, and a fan. The housing is formed with an inlet hole and an exhaust hole. The brushless motor is supported by the housing. The power supply circuit includes at least one circuit element for supplying electric power of a power source to the brushless motor. The fan is driven by rotation of the brushless motor to generate a cooling air flow that flows from the inlet hole to the exhaust hole in the housing. The housing includes a first housing including a grip portion and supporting the brushless motor. The inlet hole is formed in the first housing. The at least one circuit element is disposed inside the first housing and is cooled by the cooling air flow. 115-. (canceled)16. A power tool comprising:a housing formed with an inlet hole and an exhaust hole;a brushless motor supported by the housing and including a rotation shaft;a power supply circuit comprising at least one circuit element for supplying electric power of a power source to the brushless motor; anda fan driven by rotation of the brushless motor to generate a cooling air flow flowing from the inlet hole to the exhaust hole in the housing, a motor case accommodating therein the brushless motor and having a hollow cylindrical shape; and', 'a first housing coupled to the motor case and comprising a grip portion,, 'wherein the housing compriseswherein the inlet hole is formed in the first housing,wherein the at least one circuit element is disposed inside the first housing and is cooled by the cooling air flow, andwherein at least part of the at least one circuit element overlaps with the motor case in an extending direction of the motor shaft.17. The power tool according to claim 16 , further comprising:a reciprocal movement portion reciprocally movably supported by the housing; anda motion converting portion configured to convert the rotation of the brushless motor into reciprocal motion of the reciprocal movement ...

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Номер записи: 90
20-02-2020 дата публикации

Clamshell Vacuum Dust Extraction Apparatus for a Percussive Air Tool

Номер: US20200055154A1
Автор: Arthur Robert, Russell Nicholas J., Wenzel Nathaniel P.
Принадлежит: G. A. W. Inc.

A vacuum dust extraction apparatus for a percussive air tool contains and extracts workplace dust created by the impacting action of the air tool's implement. The apparatus includes a clamshell adapter constructed as two halves that are oppositely disposed about the air tool's retainer, and joined to enclose the retainer, and a tubular dust bellows fastened to the outboard end of the joined clamshell halves. The clamshell adaptor includes an integral exhaust port, and an industrial vacuum coupled to the exhaust port via a flexible suction/vacuum hose creates suction in the bellows for extracting airborne dust created by percussive action of the implement on a workpiece. Suction loss through the clamshell adaptor is minimized by a sealing element that bridges a gap between the interior periphery of the clamshell adaptor and the exterior periphery of the air tool's retainer. 1. Vacuum dust extraction apparatus for an air tool that percussively drives an implement , said air tool including a barrel and a retainer locked onto said barrel to retain an inboard end of said implement within said barrel , said apparatus comprising:a tubular bellows surrounding an exposed portion of the implement for containing workplace dust produced when the implement percussively impacts a workpiece; anda clamshell adaptor including first and second halves oppositely disposed about said retainer and joined to enclose said retainer, a tubular sleeve received within one end of said tubular bellows, and an integral exhaust port coupled to a suction hose so that the workplace dust in said tubular bellows is drawn through said clamshell adaptor and into said suction hose.2. The vacuum dust extraction apparatus of claim 1 , further comprising:grooves formed on inner peripheries of said first and second clamshell adaptor halves; andsealing elements seated in said grooves so that with said clamshell adaptor halves so joined, said sealing elements bridge a gap between said interior peripheries and ...

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Номер записи: 91
20-02-2020 дата публикации

Control method and borehole flushing module

Номер: US20200055173A1
Автор: Bastian Pluemacher, Carsten Peters, Helene WESSELER, Klaus-Peter Bohn, Markus Hartmann, Michael Brunner
Принадлежит: Hilti AG

A control method for a borehole flushing module ( 2 ) for a chiseling tool ( 5 ), includes the steps: Providing fine-grain particles in a dispenser ( 31 ); ascertaining a material (M) at a location processed by the tool ( 5 ) with the aid of a material detector ( 37 ); and introducing fine-grain particles at the location of the substrate processed by the tool ( 5 ) when the material detector ( 37 ) ascertains an iron-containing material (M 2 ).

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Номер записи: 92
28-02-2019 дата публикации

PORTABLE POWER TOOL

Номер: US20190061081A1
Автор: SCHAER Roland
Принадлежит:

A control method for a power tool for rotary tools comprises rotating a tool holder continuously about a working axis by a rotary drive. A rotary movement of a handle about the working axis is sensed by a motion sensor. A first angle of rotation of the handle is estimated by a first motion estimator, wherein rotary movements beneath a limit value are discounted. A second angle of rotation of the handle is estimated by a second motion estimator, wherein rotary movements beneath the limit value are taken into account. A measure for reducing the torque output of the rotary drive is activated when the first angle of rotation exceeds a first triggering threshold (A), and when the second angle of rotation exceeds a second triggering threshold (A) and at the same time a power output of the rotary drive exceeds a power threshold (L). 1. A control method for a power tool for rotary tools , whereinthe power tool has a handle, the method comprising:continuously rotating a tool holder about a working axis by a rotary drive in response to an actuation of an operating button;detecting a rotary movement of the handle about the working axis by a motion sensor;estimating a first rotational angle of the handle by a first motion estimator which masks out slow rotary movements below a limit value;estimating a second rotational angle of the handle by a second motion estimator which takes into account slow rotary movements below the limit value;activating a protective measure for reducing torque output of the rotary drive when the first rotational angle exceeds a first trigger threshold;activating the protective measure for reducing the torque output of the rotary drive when the second rotational angle exceeds a second trigger threshold, and at the same time a power output of the rotary drive exceeds a power threshold.2. The control method according to claim 1 , wherein the limit value is in the range between 10 degrees and 50 degrees.3. The control method according to claim 1 , wherein ...

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Номер записи: 93
28-02-2019 дата публикации

Claw hammer

Номер: US20190061130A1
Автор: Yung-Shou Chen
Принадлежит: Individual

A claw hammer includes a circular or oval recessed hole located on one lateral wall of a hammerhead thereof, a circular through hole located in a bottom wall of the recessed hole and cut through the other lateral wall of the hammerhead, a V-shaped opening extended from the border of the through hole and defining two abutment edges. When extracting a nail laterally, move the hammerhead horizontally to receive the head of the nail in the through hole and to abut the two abutment edges of the V-shaped opening against the shank of the nail, and then bias the handle of the claw hammer to extract the nail. Thus, the claw hammer provides an added lateral nail extracting function.

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Номер записи: 94
28-02-2019 дата публикации

ELECTRIC HAMMER

Номер: US20190061131A1
Автор: Bindhammer Markus
Принадлежит:

A hand-held electric hammer includes a handle arrangement on a tool carrier shank in which a striking mechanism actuated by an electric motor is accommodated and at the lower end of which a tool holder is arranged, which is suitable for receiving a tool attachment in the form of a spade blade, a demolition chisel, or a PVC scraper. The handle arrangement is designed as a T-shaped T-handle seated on the tool carrier shank, so that on both sides of the tool carrier shank there are two handles for both a left and a right hand of a user, whereby in the lower half of the tool carrier shank an additional handle stub is attached protruding in parallel with the T-handle from the tool carrier shank, which allows the electric hammer to be gripped with one hand on the T-handle and with the other hand on the additional handle stub. 1. A hand-held electric hammer comprising:a handle arrangement on a tool carrier shank in which a striking mechanism actuated by an electric motor is accommodated and at the lower end of which a tool holder is arranged, which is suitable for receiving a tool attachment designed as a spade blade and for receiving at least one further tool attachment, in particular a demolition chisel or a PVC scraper,wherein the handle arrangement is designed as a T-shaped T-handle seated on the tool carrier shank, so that two handles for both a left and a right hand of a user are provided on both sides of the tool carrier shank,wherein an additional handle stub being attached to the tool carrier shank in the lower half, preferably in the lower third of the tool carrier shank, in particular protruding in parallel with the T-handle from the tool carrier shank, which permits the electric hammer to be gripped with one hand on the T-handle and with the other hand on the additional handle stub, andwherein the additional handle stub houses the electric motor, preferably a brushless DC motor.2. The electric hammer according to claim 1 , wherein the electric hammer comprises ...

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Номер записи: 95
28-02-2019 дата публикации

Power tool

Номер: US20190061132A1
Автор: Keita Mori, Masanori Furusawa
Принадлежит: Makita Corp

A power tool includes a tool body, a motor, a handle part, and an elastic member. The tool body extends along the driving axis in the front-rear direction. The motor has a motor shaft. The motor shaft is rotatably supported by the tool body and extends in the front-rear direction. The handle part includes a grip part. The grip part extends in a direction crossing the driving axis. The elastic member is interposed between a rear end portion of the motor shaft and an inner wall surface of the handle part. The elastic member biases the motor shaft and the handle part away from each other in the front-rear direction.

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Номер записи: 96
17-03-2022 дата публикации

DECORING HAMMER FOR DECORING CASTINGS AND DECORING MACHINE AND METHOD FOR DECORING A CASTING

Номер: US20220080497A1
Автор: Boindecker Alois
Принадлежит: Fill Gesellschaft m.b.H.

A decoring hammer for decoring cast workpieces, includes: —a housing; —a striker which is coupled to the housing and which includes a contact surface serving for contact on the cast workpiece to be decored. Moreover, a downholder is formed which is coupled to the housing and which includes a downholder surface serving for contact on the cast workpiece to be decored, wherein the striker is displaceable relative to the downholder. 2. The decoring hammer according to claim 1 , wherein the downholder is formed hollow-cylindrically at least in some sections and comprises a central cavity claim 1 , wherein the striker is accommodated in the cavity.3. The decoring hammer according to claim 1 , wherein the downholder is rigidly coupled to the housing and wherein the striker is displaceable relative to the housing.4. The decoring hammer according to claim 2 , wherein the striker comprises a striker head and a guide part claim 2 , wherein a diameter of the striker head is larger than a diameter of the guide part and wherein the cavity of the downholder comprises an offset for the striker head adjoining the downholder surface wherein a diameter of the offset is larger than the diameter of the striker head.5. The decoring hammer according to claim 2 , wherein a securing element is formed claim 2 , by means of which the striker is secured against falling out of the downholder in the longitudinal direction.8. A method for decoring a cast workpiece by means of the decoring hammer according to or by means of a decoring machine claim 1 , the method comprising the following method steps:placing a downholder surface of a downholder of the decoring hammer against the cast workpiece;applying a hold-down force to the cast workpiece by means of the downholder surface of the downholder;applying impact pulses to the cast workpiece by means of a striker of the decoring hammer.9. The method according to claim 8 , wherein the striker claim 8 , in addition to the impact pulses claim 8 , is ...

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Номер записи: 97
17-03-2022 дата публикации

Gapless Spindle Locking Device of Improved Structure

Номер: US20220080573A1
Автор: Huang Zongping, JEN Hsi-Jen, Wang Qiang
Принадлежит: Best select Industrial(SuZhou) Co.,Ltd

A gapless spindle locking device of an improved structure includes an output shaft, a power output disk, a stop ring and lock pins. The power output disk is connected to a driving device. A polyhedral shaft is disposed at an end of the output shaft and the polyhedral shaft has a lock section and a power transmission section. Lock planes matched with the lock pins are disposed on the lock section in a circumferential direction. A driving structure for transmitting power is disposed on the power output disk. A driven structure for transmitting power is disposed on the power transmission section, and the driving structure is matched with the driven structure. Spacing pillars protruding upwards are disposed on a surface of the power output disk in the circumferential direction, and a damping block is disposed between every two adjacent spacing pillars. 1. A gapless spindle locking device of an improved structure , comprising an output shaft , a power output disk , a stop ring and lock pins , whereinthe power output disk is connected to a driving device, a polyhedral shaft is disposed at an end of the output shaft, the polyhedral shaft has a lock section and a power transmission section, and lock planes matched with the lock pins are disposed on the lock section in a circumferential direction;a driving structure for transmitting power is disposed on the power output disk, a driven structure for transmitting power is disposed on the power transmission section, and the driving structure is matched with the driven structure;spacing pillars protruding upwards are disposed on a surface of the power output disk in the circumferential direction, a damping block of damping blocks is disposed between every two adjacent spacing pillars, the lock pins are disposed between the spacing pillars and the damping blocks, the stop ring is disposed on the power output disk, and the spacing pillars, the damping blocks and the lock pins are disposed in an inner circle of the stop ring in a ...

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Номер записи: 98
17-03-2022 дата публикации

VIBRATION REDUCING STRUCTURE OF PNEUMATIC HAMMER

Номер: US20220080574A1
Автор: Sun Yung Yung
Принадлежит:

A vibration reducing structure of pneumatic hammer includes a handle having a concave room with a bottom wall and an air inlet channel communicating with the concave room. A control valve is disposed in the air inlet channel. A movable inner tube shell is accommodated in an outer tube shell coupled with the concave room and extends a rear bucket portion into the concave room. A movable hammer member, an air inlet valve for activating the hammer member and a hole communicating the air inlet channel to the air inlet valve are disposed in the inner tube shell. An air room is formed between the bottom wall and an end wall of the inner tube shell. A communicating channel communicates the air inlet channel to the air room for air with high pressure entering the air room. 1. A vibration reducing structure of pneumatic hammer comprising:a handle having a top portion and a bottom portion, the top portion being provided with a concave room having an opening end and a bottom wall, the bottom portion being provided with an air inlet channel extending at an angle to communicate with the concave room, the air inlet channel being provided with a control valve for controlling air to pass through;an outer tube shell coupled with the opening end of the concave room;a movable inner tube shell accommodated in the outer tube shell, the inner tube shell with a front tube portion and a rear bucket portion extending into the concave room, wherein the front tube portion is provided with a movable hammer member, the rear bucket portion is provided with an air inlet valve for activating the hammer member and a hole communicating the air inlet channel to the air inlet valve;an air room formed between the bottom wall and an end wall of the rear bucket portion, wherein a sealing ring is provided on the rear bucket portion to closely connect with the concave room; anda communicating channel formed in a straight direction with no bend on a front side of the handle, a drilled opening formed on the ...

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Номер записи: 99
17-03-2022 дата публикации

SCORING KNIFE

Номер: US20220080606A1
Автор: Costanzo Nicholas A., Dahill Drew A.
Принадлежит:

A knife includes a body including a first end, a second end opposite the first end, and a longitudinal axis that extends centrally through the first end and the second end. The knife further includes a first scoring tip that points in a first direction, a second scoring tip that points in a second direction opposite the first direction, and a scoring tip axis that extends centrally through the first scoring tip and the second scoring tip. The scoring tip axis is perpendicular to the longitudinal axis. A chisel extends from the second end of the body and the longitudinal axis of the body extends centrally through the chisel. 1. A scoring knife comprising:a handgrip;a body having a first end and a second end opposite the first end, the body extends at least partially through the handgrip;a first scoring member attached to the body, the first scoring member having a first scoring tip that points in a first direction;a second scoring member attached to the body, the second scoring member having a second scoring tip that points in a second direction opposite the first direction;a chisel positioned adjacent the first end of the body;a longitudinal axis that extends centrally through the body and the chisel;a scoring tip axis that extends centrally through the first scoring member and the second scoring member, the scoring tip axis perpendicular to the longitudinal axis; anda blade hook formed on the body, the blade hook extending at least partially between the first scoring member and the longitudinal axis of the body, the scoring tip axis forms a tangent line of the blade hook.2. The scoring knife of claim 1 , wherein the tangent line extends through an apex of a curve defined by the blade hook.3. The scoring knife of claim 1 , whereinthe blade hook is a first blade hook,a second blade hook is formed on the body, andthe second blade hook extends at least partially between the second scoring member and the longitudinal axis of the body.4. The scoring knife of claim 3 , ...

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Номер записи: 100