Trigger actuated control device

POWER TOOLS HAVING PLASTICS MATERIAL CASINGS

... 1414300 Moulding power tool casings ROBERT BOSCH GmbH 20 Oct 1972 [22 Oct 1971] 48347/72 Heading B5A [Also in Divisions B3 and F2] The casing of a power tool, as shown an electric drill, has an inner skin 100 of plastics material-which determines the relative positions of the working parts of the toolssurrounded by a foamed plastics material housing 101 which is thicker than the inner skin and may be denser at its outer surface than its cellular core. The inner skin may be formed as two shell halves, locked, welded or otherwise connected together after assembling the working parts in one half. The assembly may then be positioned in an outsize mould wherein it is encased in foamed plastics material. Slots 129, 130 for cooling and may be formed by punching or milling or by providing removable members in the mould.

Vibratory and impact connector for a power tool

A vibratory and impact connector for a power tool, such as an electric drill, comprises a spring 20, a first drive rod 40, a drive ring 50 and a second drive rod 60, which are received in an outer cylinder. The first drive rod is inserted through the spring and extended out of the outer cylinder, the second drive rod is inserted through the drive ring and into the first drive rod, and the drive ring is fixed to the outer cylinder. When a sleeve 90 is axially moved on the outer cylinder, meshing of respective teeth 12, 91 on the sleeve and outer cylinder causes a restriction in the rotation of the outer cylinder, and the drive ring. This causes rolling balls 4214 provided on the first drive rod to engage or disengage with teeth 53 provided on of the drive ring, and consequently, a working head (C, fig 3) connected to the first drive rod is caused to perform an impact operation.

An electric hand tool with mode changing device operated by axial movement of a layshaft

An electric hand tool has a mode changing device comprising a clutch device which is engaged and disengaged by an axial movement of a layshaft 10. The clutch device comprises a toothed sleeve 13 having coupling bodies, e.g. balls 18, which, depending on the axial position of the layshaft 10, engage drive bearing 11 that drives a wobble finger 26 which converts rotational movement of the drive bearing 11 into an axial, percussive movement. The toothed sleeve 13 via plug-in gearing 31 comprising external/internal gearing 15, 14 also drives the layshaft 10 when the electric hand tool is in drilling and impact drilling mode. When impact mode only is selected the external/internal gearing 15, 14 is disengaged (see fig 2) and when in impact mode only the balls 18 are accommodated in a constriction, e.g. recess 29, in the layshaft 10. A gear 24 mounted on the layshaft engages a gear 25 fixed to a spindle 23 which drives a tool. Gear 24 may also engage locking means 21 when the percussion only ...

Motor location in a power handtool

Processing device

Drill bit

Self-collecting drill

A self-colleting drill that includes a pair of parallel output shafts arranged to drive a pair of drill bits and means for retaining the work piece against a foot member of the drill so that the holes will be spaced therein in accordance with the spacing between the drill bits or shafts. A plurality of drill guide members having varying hole spacings therein, provide a variety of center distances between the shafts that extend therethrough. A plurality of foot members are also provided that have mating hole spacings to the drill bushings providing for the variable drill bit spacing.

SELF-COLLETING DRILL

A POWER TOOL

A POWER TOOL

The power tool has a magnetic base with superposed permanent magnet assemblies. The upper assembly can be moved relative to the lower assembly to subtract from or reinforce the magnetic field. When the sensing probe is pushed into the base the electric motor can be switched on to rotate a spindle on which a rotary cutting tool is axially mounted. The tool feed is controlled by a handle which can be mounted on either side of the tool housing. A coolant reservoir on the base has a hose connected to a pump which is connected to a manifold supplying coolant to the center of the cutting tool. The cutting tool is biased upwardly and pinches off the coolant when the tool is raised from the work. The tubular tool shank is retained on the drive spindle by balls carried by a cage and moved into engagement with a groove in the tool shank by a cam surface on a release collar spring biased to move the balls to engage the tool.

3D printed shield for power tools

A label 10 for a power tool (20, Fig 2) includes a body having a contour like a contour of a portion of a power tool housing (22, Fig 2). Indicia 16 are formed on a portion of the body. The label includes means for coupling the body to the portion of the power tool housing.

CHUCKING SYSTEM

Improvements in and relating to pneumatic drilling machines

... 157,894. Krupp Akt.-Ges., F. Jan. 21, 1920, [Convention date]. Drilling-machines.-In a two-speed pneumatic drill, the spindle B is secured against axial move. ment by a collar b<1> and a ball bearing C located in the hollow end of a tube D, which is engaged by a ratchet-operated spindle E to feed the drill. A pinion h<2>, fast on the spindle h<1> of the distributing-valve H of the motor, is driven from the crank-shaft G through a loose wheel F, which has clutch teeth f<2>adapted to engage clutch teeth k<2> on a sliding wheel K splined on the drill spindle. The drill spindle may thus be driven either direct from the loose wheel F or at a reduced speed through a pinion h<3> on the distributing-valve spindle.

Improvements in or relating to rotary portable power-driven tools

... 503,884. Portable grinding-machines. BLACK & DECKER MANUFACTURING CO. March 17, 1938, No. 8261. Convention date, March 23, 1937. [Class 60] [Also in Group XXII] A portable power-driven rotary tool for drilling, tapping, sanding, grinding, polishing, &c. has the tool arranged transversely or at an angle to the axis of the motor which operates through gearing in a casing shaped to be held in the palin of the operator's hand with the fingers extending downwards towards a nose on the casing adjacent the tool chuck. In one form the machine comprises a cylindrical casing 2 containing a motor 1 and having attached at one end a brush and switch housing 3 and at the other end, by a screw-thread 11, a ring 12 carrying a bearing 10 for the motor shaft 5. A gear casing 4 is screwed at 14 to an internal boss on the ring 12 and carries bearings 18, 19 for the tool spindle 23 which is arranged at right-angles to the motor and is driven therefrom through gearing 22. A fan 6 on the motor shaft draws cooling ...

Control mechanism and shaft lock

... 857,985. Hand-drills. STANLEY WORKS. April 24, 1959 [Aug. 7, 1958], No. 14011/59. Class 83 (3). [Also in Group XXIV] A rotary lever 27 having a forked end 28 for operating a switch 18 controlling the drive means of a rotatable shaft 14 of a power tool is also movable radially when the switch is in the " off " position so that a slot 33 in the lever extending from an aperture 32, giving a running clearance to the shaft, engages flats 35 on the shaft to lock the latter against rotation. The lever 27 is pivotable between two posts 20, 21, joined by a cross-piece 23 on which a leafspring 36, also bearing on a fixed abutment 38 and the lever 27, bears to urge a depending portion 42 of the lever into contact with a guide-pin 43 fixed in the casing so that the rotary lever may be moved in a slot 25 in the casing by a handle 11, between the " on " and " off " positions, and in the " off " position a raised portion 26 in the slot 25 enables the lever to be lifted against the action of the leafspring ...

Improvements in hand applied drilling and like rotary tool devices incorporating an electric motor

... 848,636. Portable drilling machines. SCINTILLA A. G. May 28, 1959 [July 19, 1958], No. 18146/59. Class 83 (3). An electric pistol drill comprises a nylon casing 11 having an integral portion 12 forming part of the handle, the remaining portion 13 being secured to lugs 35, 38, on the portion 12 by a screw 36. A switch 20 has an insulated split casing 24, 25,.riveted together, in which slides a trigger 21, the casing being secured to the lugs 35, 38, by screws 33, 37. A button 27 on the switch locks the trigger in the switched-on position, and the switch is connected to a mains cable 48, an electric motor 10 and a suppressor condenser 52.

POWER-DRIVEN COMBINATION DRILL AND SCREW-DRIVER

Improvements in or relating to gear box units

... 892,621. Variable-speed gears; toothed gearing. CLARK, A. N. April 14, 1958 [April 12, 1957], No. 12037/57. Classes 80 (1) and 80 (2). [Also in Group XXII] Countershaft gearing for use with a portable high-speed tool such as an electric or air-operated drill comprises an output shaft 15 having a squared end 16 on which a double dog clutch member 17 is mounted and slidable to the right to clutch the output shaft directly to an input shaft 12, or to the left to clutch a loose wheel 20 to the shaft 15 so that shaft 15 is driven at the reduced ratio from a gear 13 on the input shaft, gears 25, 26 on a lay shaft and the wheel 20. Shaft 12 is internally screw-threaded for connection to the chuck driving spindle of a power drill, and the casing of the unit has a split aperture 40 which fits over the nose of the drill and is fixed in position by a clamping screw. A handle 51 is provided on the casing to enable the unit to be steadied when in position on the drill and to prevent rotation of the ...

Improvements in or relating to gearboxes and electric drills embodying the same

... 866,774. Variable-speed gearing. ELLIOTT & CO. Ltd., B. Oct. 9, 1957 [Oct. 18, 1956; May 15, 1957], Nos. 31722/56 and 15424/57. Class 80 (2). [Also in Group XXII] A two-speed gear, particularly suitable for a portable electric hand drill, comprises a helical driving pinion 12 engaging the larger of a pair of sliding gears 15, 16 fast together, which are alternatively engaged with gears 10, 11 fixed on the driven shaft. The change of mesh is effected by a sliding glut 17 co-operating with the larger gear 15 and fast with a pin 19 passing through a slot 20 in the casing 3 and a radial slot 24 in a sealing disc 23 secured to an actuating- knob 21. The disc 23 seals the slot 20 and a head 25 on the pin 19 seals the slot 24 in disc 23.

COMBINED DRILLING AND FASTENER INSERTING TOOLS

TOOL KIT COMPRISING A HAND-HELD POWER DRILL AND AN AUXILIARY TOOL WITH A CASING TO BE RELEASABLY SECURED TO A HOUSING OF THE POWER DRILL

... 1478089 Clamps METABOWERKE KG GLOSS RAUCH & SCHNIZLER 22 May 1975 [14 June 1974] 22281/75 Heading E2B An accessory is secured to the neck of a hand-held power tool by a band clamp 8 which is closed by an adjustment worm 19 and a quick-release toggle lever 10. The socket of the accessory has radial splits 5 to ensure resilience and is secured to the band by screw 9. Exact centering is provided by an additional, inner ring 22.

DRILLS

... 1348379 Portable drill VICTOR PRODUCTS (WALLSEND) Ltd 22 Oct 1971 [22 Oct 1970] 50239/70 Heading B3C A hand held drill comprises a casing 1 on which the drilling pressure is applied, and a motor 4, the supply of power to the motor being controlled by the yielding of motor 4 relative to casing 1. Motor 4 may be pneumatic or hydraulic. When an hydraulic motor is used a valve block 7 is attached thereto and the motor and block are supported in the casing by a trunnion 5, and a recess 6, against the action of springs 8, 9. A spool valve spindle 11 is urged against a stop 12 by a spring 13 and is connected to triggers 16 by levers 18, 17. When pressure is applied to a bit held in a chuck 10 motor 4 and block 7 are pushed back relative to casing 1 but spindle 11 is prevented from moving by stop 12. The spindle therefore moves forward relative to valve block 7 and opens the valve so that fluid flows to motor 4 and rotates the drill. The drill can be rotated before being brought up to the work ...

VERRIEGELUNGSEINRICHTUNG FUR DIE SPINDEL EINER HANDWERKZEUGMASCHINE

HAND DRILL WITH ELECTRICAL DRIVING MOTOR

TOOL FOR TIGHTENING A HEAD SCREW

SELECTOR ROTARY SWITCH

ANGLE RESOLUTION FOR A DRILL PRESS

STRENGTH-PROPELLED TOOLS

OF A DRILL PRESS OF PROPELLING CABLE CUTTERS

ANORDNUNG ZUM BOHREN VON LOECHERN UND EINDREHEN VON SCHRAUBEN IN DIE GEBOHRTEN LOECHER

DIAGONAL DRILLING FIXTURE

ARRANGEMENT FOR BORING LOECHERN AND PIVOTING SCREWS INTO THE BORED ONES SOLVE AGO

DRILLING HAMMER WITH MORE FUEHRUNGSZYLINDER FOR THE RAMMER

HAND-GUIDED, MOTOR OPERATION HANDICRAFT THINGS FOR BORING AND/OR IMPACT BORING

ARRANGEMENT FOR A DRILL PRESS TO THE STORAGE AND SUPPORT OF A PIECE OF PUTTING IN

COMBINATION TOOL

DRILL PRESS FOR RAILS OF A RAILROAD TRACK

PROCEDURE FOR THE PRODUCTION OF A ANGLE NUT RUNNER

POWER TOOL

A power tool with an epicyclically or so called planet gear system with two annulus gears, at least one solar gear with external toothing, and planet wheels having two toothed rings which each mesh with one of the annulus gears. A planet carrier holding the planet wheels. The gear is interchangeable between an at least first configuration and second configuration, wherein the planet carrier is interchangeable between being locked or partly locked rotationally to the frame or being unlocked rotationally from the frame. 115-. (canceled)16. A power tool comprising:a frame;a motor;a rotor rotatable relative to the frame by the motor and capable of manipulating a tool; at least two internally driven annulus gears, including a primary annulus gear and a secondary annulus gear,', 'an externally driven sun gear,', 'a planet carrier, and', 'at least one planet wheel carried by the planet carrier and arranged to transfer torque between the sun gear and one of the annulus gears; wherein each annulus gear, the sun gear and the planet carrier are rotatable concentrically around a central axis, each planet wheel rotatable epicyclically around the central axis, and each planet wheel comprising at least two concentrically joined gear wheels; and, 'a transmission for transmitting power between the motor and the rotor, the transmission comprisinga gear change structure allowing shifting between at least a first and a second configuration, the planet carrier being locked rotationally or partly locked rotationally to the frame in the first configuration and the planet carrier being released from rotational limitations of the frame in the second configuration.17. The tool as recited in wherein the planet carrier is connected to the rotor in the second configuration.18. The tool as recited in wherein the planet carrier is connected to the motor in the second configuration.19. The tool as recited in wherein the sun gear is connected to the motor in the first or second configuration.20. ...

POWER DRILL WITH ADJUSTABLE TORQUE

A typical power drill has a housing, a drive spindle that can be driven by a motor, and a chuck including a chuck body in which jaws are guided that are adjustable by a threaded connection provided between a driver and a threaded sleeve. A drill spindle and an axially displaceable drive stem can be driven by a motor from its end facing the drive spindle by planetary gearing gearing composed of a sun gear, a planet carrier supporting planet gears, and a ring gear, and comprising a control element. A locking element and a gripping element are provided parallel to the force transmission chain of the drive stem, which elements are rotationally fixed to the housing and can be moved axially by adjusting the control element between the operating modes of the power drill so as to vary the torque acting on the drive stem. 1. A power drill comprising:a housing;a drive spindle rotatable in the housing about an axis;a motor connectable to the drive spindle for rotating the spindle about the axis;a chuck including a body and jaws guided in the body connection provided between a driver and a threaded sleeve;a drill spindle and an axially displaceable drive stem connected axially rearward to the motor by planetary gearing including a sun gear, a planet carrier supporting planet gears and a ring gear;a control element on the housing; anda locking element and a gripping element are provided parallel to a force transmission chain of the drive stem, the elements being rotationally fixed to the housing and movable axially by moving the control element between operating modes so as to vary torque acting on the drive stem.2. The power drill defined in claim 1 , wherein the ring gear has at least one latch seat for the at least one locking projection of the locking element.3. The power drill defined in claim 2 , wherein in a drill mode the at least one locking projection is engaged in the at least one latch seat of the ring gear by axial movement of the locking element to rotationally fix ...

POWER TOOL

A power tool having a housing assembly and a drive component that is housed in the housing assembly. The housing assembly has a first housing component, a second housing component, at least one set of mating conically-shaped features, and at least one fastener. Each set of mating conically-shaped features includes a first cone portion and a second cone portion. The first cone portion of each set of mating conically-shaped features is coupled to the first housing component and has a frusto-conically-shaped exterior surface. The second cone portion of each set of mating conically-shaped features is coupled to the second housing component and has a frusto-conically-shaped interior surface that is engaged with the frusto-conically-shaped exterior surface of an associated first cone portion. Each fastener is received through an associated pair of the first and second cone portions and is threadably engaged to one of the first and second housing components. 1. A power tool comprising:a housing assembly having a first housing component, a second housing component, at least one set of mating conically-shaped features, and at least one fastener, each set of mating conically-shaped features including a first cone portion and a second cone portion, the first cone portion of each set of mating conically-shaped features being coupled to the first housing component and having a frusto-conically-shaped exterior surface, the second cone portion of each set of mating conically-shaped features being coupled to the second housing component and having a frusto-conically-shaped interior surface that is engaged with the frusto-conically-shaped exterior surface of an associated first cone portion, each fastener being received through an associated pair of the first and second cone portions and being threadably engaged to one of the first and second housing components; anda drive component that comprises at least one of a motor, a transmission and a clutch, the drive component being housed ...

RECIPROCATING POWER TOOL HAVING A COUNTERBALANCE DEVICE

A reciprocating power tool that includes a drive system having a first driven gear that includes a spindle counterbalance weight and a second driven gear that includes a spindle counterbalance weight. The first driven gear and the second driven gear rotate in opposite directions about an axis of rotation in response to rotation of a driving gear by a motor. The power tool further includes a spindle having a longitudinal axis and a first end that is configured to support a tool element. The spindle is coupled to one of the first driven gear and the second driven gear by a scotch yoke mechanism to reciprocate the spindle with respect to a housing of the power tool along the longitudinal axis of the spindle in response to operation of the motor. 1. A reciprocating saw comprising:a housing;a handle configured for a user, the handle having a longitudinal axis defining a first axis of the saw;a switch adjacent the handle and operable by the user when the user grips the handle;a motor supported by the housing and having an output shaft, the motor operable to rotate the output shaft about a longitudinal axis of the output shaft that defines a second axis of the saw, the output shaft configured to rotate in response to operation of the switch by the user; a driving gear coupled to the output shaft for rotation with the output shaft,', 'a driven gear having a spindle counterbalance weight, the driven gear coupled to the driving gear such that the driven gear is configured to rotate about an axis of rotation in a first direction in response to rotation of the driving gear by the motor;, 'a drive system coupled to the output shaft of the motor, the drive system including,'}a spindle having a first end, a second end, and a longitudinal axis that extends through the first end and the second end, the longitudinal axis of the spindle defining a third axis of the saw; anda blade clamp coupled to the first end of the spindle, the blade clamp configured to couple a saw blade to the ...

POWER TOOL WITH TORQUE CLUTCH

A power tool that includes a housing, a motor, a trigger, a multi-speed transmission and a torque clutch. The housing define a handle. The motor is coupled to the housing. The trigger is coupled to the housing and configured to control operation of the motor. The multi-speed transmission is configured to transmit rotary power between the motor and the output spindle and includes a plurality of planetary stages with a first stage and a second stage that receives rotary power from the first stage. The first stage has a first internally toothed gear element and the second stage having a second internally toothed gear element. The torque clutch limits torque output from the multi-speed transmission to the output spindle. The torque clutch is configured to alternatively ground the second and third internally toothed gear elements to the housing based on a speed ratio setting of the multi-speed transmission. 1. A power tool comprising:a housing that defines a handle;a motor coupled to the housing;a trigger coupled to the housing and configured to control operation of the motor;a multi-speed transmission configured to transmit rotary power between the motor and the output spindle, the multi-speed transmission comprising a plurality of planetary stages including a first stage and a second stage that receives rotary power from the first stage, the first stage having a first internally toothed gear element, the second stage having a second internally toothed gear element; anda torque clutch that limits torque output from the multi-speed transmission to the output spindle, the torque clutch being configured to alternatively ground the second and third internally toothed gear elements to the housing through the torque clutch based on a speed ratio setting of the multi-speed transmission.2. The power tool of claim 1 , wherein the torque clutch comprises a clutch member having a first set of clutch teeth and a second set of clutch teeth claim 1 , the first set of clutch teeth ...

MECHANICAL ASSEMBLY FOR A POWER TOOL

A mechanical assembly for a power tool, and a power tool incorporating the mechanical assembly are provided. The mechanical assembly includes (i) a first member having a first axis and a first engagement portion inclined relative to the first axis, (ii) a second member having a second axis and a second engagement portion inclined relative to the second axis, wherein the first and second engagement portions engage each other by movement of the first and second members relative to each other in the direction of at least one of the axes; and wherein the first member is a ring gear and the second member is a central gear and the first and second engagement portions engage and disengage each other by movement of the second member within a space defined within the first member. 1. A mechanical assembly for a power tool , the mechanical assembly including:a first member having a first axis and a first engagement portion inclined relative to the first axis;a second member having a second axis and a second engagement portion inclined relative to the second axis;wherein the first, and second engagement portions engage each other by movement of the first and second members relative to each other in the direction of at least one of the axes2. The mechanical assembly of claim 1 , wherein the first and second axes extend in the same direction and the first and second engagement portions engage each other by movement of the first and second members relative to each other in the direction of at least one of the axes.3. The mechanical assembly of claim 1 , wherein the first engagement portion is conical and the second engagement portion is conical.4. The mechanical assembly of claim 1 , wherein the first engagement portion includes elongated splines for mating with elongated recesses of the second engagement portion and the second engagement portion includes elongated splines for mating with elongated recesses of the first engagement portion claim 1 , wherein each spline and recess ...

MULTI-TOOL FOR FASTENERS

The multi-tool for fasteners includes a housing, a power device, a transmission device coupled to the power device, an output device coupled to the transmission device, and a switching device that can be switched between at least two operating modes. In a first operating mode, the output device moves in a reciprocating manner without rotation along an axial direction. In a second operating mode, the output device rotates with an intermittently increasing torque about a circumferential direction. The switching device may include a limiting member and the limiting member can be moved between a first position and a second position. Further, in the first position the output device is in the first operating mode, and in the second position the output device is in the second operating mode. 1. A multi-tool for fasteners comprising:a housing;a power device;a transmission device coupled to the power device;an output device coupled to the transmission device having at least two operating modes, wherein in a first operating mode the output device moves in a reciprocating manner without rotating along an axial direction, wherein in a second operating mode the output device rotates with an intermittently increasing torque about a circumferential direction; anda switching device having a limiting member, the limiting member being moveable between a first position and a second position, wherein the output device is in the first operating mode in the first position, wherein the output device is in the second operating mode in the second position.2. A multi-tool for fasteners of claim 1 , wherein the transmission device comprises a hammer having a striking portion at one end thereof claim 1 , wherein the output device comprises a hammer anvil having an anvil portion to engage the striking portion of the hammer claim 1 , wherein an engaging surface between the striking portion and the anvil portion has an inclined surface and a curved surface.3. A multi-tool for fasteners of claim 2 ...

Multi-Functional Electric Power Tool with Safety Shift Device

It is one kind of hand-held electric power tool with safety shift device, including housing assembly, motor, end cap of gear box, gear box, output shaft, final-stage rack wheel, final-stage pinion, gear pin roll, safety shift pin roll, gear knockout plate, gear synchronous spring, safety shift spring, safety push rod, stop pin, variable-speed pinion axis, variable-speed rack wheel, big bevel pinion, bevel pinion and grinding wheel shield. Among which, the gear pin roll and safety shift pin roll are installed within the gear box in parallel, the gear knockout plate is connected with final-stage rack wheel and final-stage pinion, the gear synchronous spring is installed on the gear pin roll while the safety shift spring is installed on the safety shift pin roll. This new practical hand-held electric power tool with safety shift device is characterized by low-speed gear automatic recovery function and the dangers of disoperation will be avoided, being safe and convenient. 1. A hand-held electric power tool with safety shift device comprising: housing assembly , motor , end cap of gear box , gear box , output shaft , final-stage rack wheel , final-stage pinion , gear pin roll , safety shift pin roll , gear knockout plate , gear synchronous spring , safety shift spring , safety push rod , stop pin , variable-speed pinion axis , variable-speed rack wheel , big bevel pinion , bevel pinion and grinding wheel shield; among which , the motor is installed within the housing assembly , which is connected with the gear box; the end cap of the gear box is connected with the other end of the gear box; the output shaft is installed within the gear box but comes out from the end cap of the gear box; the final-stage rack wheel is installed on the final-stage pinion in form of front and back axial direction. The final-stage rack wheel and final-stage pinion are installed on the output shaft in form of spline with the following features: both ends of the gear pin roll are installed in ...

CORE DRILLING MACHINE AND A HANDLE ASSEMBLY FOR A CORE DRILLING MACHINE

The present invention relates to a core drilling machine (). The core drilling machine () includes a front housing part () including a protruding nose. The drilling machine () includes a front handle assembly () and an output drive shaft () projecting outward from the protruding nose. A fluid attachment ring () is rotably arranged around the protruding nose. Further, the front handle assembly () is arranged around the protruding nose. 115-. (canceled)16. A core drilling machine , the core drilling machine comprising:a front housing part comprising a protruding nose;a front handle assembly;an output drive shaft projecting outward from the protruding nose;a detachable drill bit tool fastened to the output drive shaft;a fluid attachment ring rotatably arranged around the protruding nose; andthe front handle assembly is arranged around the protruding nose.171. The core drilling machine according to claim , wherein the front handle assembly comprises:a front handle; anda front handle support.18. The core drilling machine according to claim 17 , wherein the front handle comprises a hand grip and a handle screw rotatably fixed to the hand grip and protruding from an inner end of the hand grip claim 17 , so that the front handle can be screwed into a thread in the front handle support for attachment and be unscrewed for detachment.19. The core drilling machine according to claim 18 , wherein the front handle assembly is rotatably arranged around the protruding nose claim 18 , and an inner end of the handle screw when screwed by the hand grip is arranged to come into contact claim 18 , directly or preferably indirectly via protective bodies claim 18 , with the fluid attachment ring for locking of the front handle and of the fluid attachment ring for rotation around the protruding nose.20. The core drilling machine according to claim 17 , wherein the front handle support comprises a front ring section claim 17 , the front ring section is located in front of the fluid ...

Electric Power Tool, In Particular Drill/Screwdriver

An electric power tool, in particular a drill/screwdriver, has a drive motor which is coupled via a gearbox to an output drive element. The gearbox has a plurality of gears. In particular, the drive motor is coupled to a drive spindle in which the torque generated by the drive motor is adjustable. The torque can be adjusted by a first, manually operated, adjusting device, and by a second, manually operated, adjusting device. The second adjusting device is configured to adjust the torque by selecting the gear of the gearbox. Both adjusting devices are operated by a common actuating element. 1. An electric power tool comprising:a drive motor coupled to an output element via a transmission having a plurality of gear steps, the drive motor configured to generate a torque;a first adjusting device configured to set the torque and configured to be actuated manually;a second adjusting device configured to set the gear step of the transmission to set the torque and configured to be adjusted manually; anda common actuating element configured to actuate the first adjusting device and the second adjusting device.2. The electric power tool as claimed in claim 1 , wherein the actuating element is one of a sliding switch and a rotary switch.3. The electric power tool as claimed in claim 1 , wherein:the actuating element is configured to act exclusively in combination with the first adjusting device in a first adjusting range;the actuating element is configured to act exclusively in combination with the second adjusting device in a second adjusting range; andthe first adjusting range adjoins the second adjusting range.4. The electric power tool as claimed in claim 1 , wherein:the first adjusting device comprises a potentiometer configured to identify a position of the actuating element to set the torque; anda contact element arranged on the actuating element and configured to act as a jumper between printed conductors is further configured to vary a resistance value of the ...

POWER TOOL

An electric oscillating tool () which actuates a tool () around a spindle () is provided. The electric oscillating tool () comprises a motor (), the spindle () which is driven by the motor (), and a driving transmission member which transmits a rotational output of the motor () to the spindle (). The driving transmission member includes an eccentric moving member, a driven arm (), a spindle connecting arm (), and a pin () which connects the driven arm () and the spindle connecting arm () in a relatively rotatable manner. The eccentric moving member comprises an eccentric shaft () which moves eccentrically around a rotational shaft of the motor (), a first bearing (), and a second bearing (). 1. A power tool which actuates a tool around a predetermined axis , comprising:a motor;a driving shaft which is driven by the motor; anda driving transmission member which transmits a rotation output of the motor to the driving shaft,wherein the driving transmission member includes an eccentric moving member which moves eccentrically around a rotational shaft of the motor, a first member to which a movement of the eccentric moving member is transmitted, a second member which is connected to the driving shaft, and a pivot portion which connects the first member and the second member in a relatively rotatable manner.2. The power tool according to claim 1 , wherein the eccentric moving member includes an eccentric portion which is arranged to be offset to the center of the rotational shaft claim 1 , and two bearings which are arranged on a periphery of the eccentric portion claim 1 ,wherein the first member includes two arms which face to each other and contact with respective peripheries of the two bearings,and wherein the two bearings are arranged in line in an axial direction of the rotational shaft.3. The power tool according to claim 1 , wherein the pivot portion and the eccentric moving member are arranged to be equally distant from the driving shaft in the axial direction of ...

HAND-HELD POWER TOOL

A hand-held power tool has a tool housing in which a gear unit which is drivable by a drive motor for driving a drive shaft is situated and to which a torque clutch is assigned. On the hand-held power tool, the drive shaft is provided with a tool holder for holding an assigned insertion tool, and an acceleration sensor is provided which is designed for enabling detection of an activation of the torque clutch. 1. A hand-held power tool , comprising:a tool housing;a drive shaft provided with a tool holder for holding an assigned insertion tool;a gear unit provided in the tool housing, wherein the gear unit is drivable by a drive motor for driving the drive shaft;a torque clutch assigned to the drive shaft; andan acceleration sensor configured to enable detection of an activation of the torque clutch.2. The hand-held power tool as recited in claim 1 , wherein the acceleration sensor is situated on the tool housing.3. The hand-held power tool as recited in claim 2 , further comprising:a control unit configured to detect the activation of the torque clutch, based on an evaluation of an acceleration signal generated by the acceleration sensor.4. The hand-held power tool as recited in claim 3 , wherein the acceleration signal represents vibrations which are transmitted to the tool housing during operation of the hand-held power tool and have an assigned average amplitude claim 3 , and wherein an amplitude change of the average amplitude detectable by the control unit occurs upon activation of the torque clutch.51. The hand-held power tool as recited in claim 4 , wherein the control unit is configured to detect the occurring amplitude change within a period of time which is shorter than second.6. The hand-held power tool as recited in claim 4 , wherein the control unit is configured to detect the occurring amplitude change upon a deviation of at least 0.01 g m/sfrom the average amplitude.7. The hand-held power tool as recited in claim 4 , wherein the control unit is ...

POWER TOOL

In addition to improvement of operability, a small size with a light weight and a long life are achieved. A switch housing unit and a control-part housing unit are provided in a housing, a switch unit provided with a pressure switch which generates an electric signal by performing a pressing operation by a worker is housed in the switch housing unit, a switch cover which covers the pressure switch and which is elastically deformed by the pressing operation by the worker is provided, and the control-part houses a control circuit board which controls a rotation state of a motor in accordance with a magnitude of the electric signal outputted from the pressure switch. 1. A power tool comprising:an electric motor which has a rotary shaft;a housing which houses the electric motor;a switch housing unit and a control-part housing unit which are provided in the housing;a pressure switch which is housed in the switch housing unit and which generates an electric signal by performing a pressing operation by a worker;an operation cover which is provided in the housing and which is elastically deformed by the pressing operation by the worker; anda control part which is housed in the control-part housing unit and which controls a rotation state of the electric motor in accordance with a magnitude of the electric signal from the pressure switch.2. The power tool according to claim 1 ,wherein a switch unit including the pressure switch is protruded from the switch housing unit.3. The power tool according to claim 1 ,wherein the operation cover is formed of a bottomed main body part and a flange part provided on an opening side of the main body part.4. The power tool according to claim 1 ,wherein the operation cover covers the pressure switch.5. The power tool according to claim 1 ,wherein the operation cover is provided in the housing so as to seal the switch housing unit.6. The power tool according to claim 1 ,wherein a display unit which displays the rotation state of the electric ...

POWER TOOL

A power tool, in which a case that is connected to a housing and the case houses a reducer mechanism that decelerates an output of an electric motor and an impact mechanism that transmits an output of the reducer mechanism to a tip tool, is provided. The power tool further includes an inner cover that covers an opening of the case, a ring gear included in the reducer mechanism, a spindle that is rotatably supported by a bearing, and a space portion that is placed between the inner cover and the ring gear and in a periphery of the bearing, and capable of stocking grease. A through hole, which communicates with the inside and outside of the case through the space portion, is formed in the inner cover. 1. A power tool in which a case connected to a housing houses a reducer mechanism of a planetary gear type that decelerates an output of a driving source and a transmission mechanism that transmits an output of the reducer mechanism to a tip tool ,the power tool comprising:a cover member that covers an opening of the case;a ring gear included the reducer mechanism and supported by the cover member;a bearing that rotatably supports a spindle included in the transmission mechanism, the bearing being disposed inside the case; anda space portion that is placed between the cover member and the ring gear and on the periphery of the bearing, and capable of stocking grease,wherein a first through hole, which makes the inside and outside of the case to communicate with each other through the space portion, is formed in the cover member.2. The power tool according to claim 1 , further comprising:a concave portion that is formed on a surface facing the ring gear of the cover member; anda protrusion that is formed on a surface facing the cover member of the ring gear, and inserted into the concave portion of the cover member,wherein the first through hole is formed at a bottom of the concave portion of the cover member so that at least one portion of the space portion is formed by a ...

ELECTRONIC CLUTCH FOR POWER TOOL

A method is presented for controlling operation of a power tool having an electric motor drivably coupled to an output spindle. The method includes: receiving an input indicative of a clutch setting for an electronic clutch, where the clutch setting is selectable from a plurality of driver modes; setting the value of a maximum current threshold in accordance with the selected one of the plurality of driver modes; determining rotational speed of the electric motor; determining an amount of current being delivered to the electric motor; comparing the amount of current being delivered to the electric motor to the maximum current threshold; and interrupting transmission of torque to the output spindle when the amount of current being delivered to the electric motor exceeds the maximum current threshold and the rotational speed of the electric motor is decreasing. 1. A method of controlling operation of a power tool having an electric motor drivably coupled to an output spindle , comprising:receiving, by a controller residing in the power tool, an input indicative of a clutch setting for an electronic clutch, the clutch setting being selectable from a plurality of driver modes and each of the plurality of driver modes specifies a different value of torque at which to interrupt transmission of torque to the output spindle;setting, by the controller, the value of a maximum current threshold in accordance with the selected one of the plurality of driver modes;determining, by the controller, rotational speed of the electric motor;determining, by the controller, an amount of current being delivered to the electric motor;comparing, by the controller, the amount of current being delivered to the electric motor to the maximum current threshold; andinterrupting transmission of torque to the output spindle when the amount of current being delivered to the electric motor exceeds the maximum current threshold and the rotational speed of the electric motor is decreasing.2. The method ...

HAND-HELD ELECTRIC TOOL HAVING A SPINDLE-LOCKING DEVICE

In a handheld electric tool having a tool housing in which is disposed a gearbox for transferring a torque, generated by a drive motor, to a drive spindle with which a spindle locking apparatus is associated, the drive spindle being rotatably mounted in the tool housing at at least two bearing points, the at least two bearing points are provided in the tool housing in a region downstream from the gearbox, and the spindle locking apparatus is disposed between the two bearing points in an axial direction of the drive spindle. 126-. (canceled)27. A handheld electric tool , comprising:a tool housing in which is disposed a gearbox for transferring a torque, generated by a drive motor, to a drive spindle with which a spindle locking apparatus is associated, the drive spindle being rotatably mounted in the tool housing at at least two bearing points, wherein the at least two bearing points are provided in the tool housing in a region downstream from the gearbox, and the spindle locking apparatus is disposed between the two bearing points in an axial direction of the drive spindle.28. The electric tool as recited in claim 27 , wherein the spindle locking apparatus has a carrier element claim 27 , mounted on the drive spindle with a predefined radial clearance claim 27 , on which at least one spindle roller is disposed.29. The electric tool as recited in claim 28 , wherein the at least one spindle roller abuts against the drive spindle directly between the two bearing points in an axial direction of the drive spindle.30. The electric tool as recited in claim 28 , wherein the carrier element is mounted at a first of the at least two bearing points claim 28 , by way of a bearing ring embodied on an outer periphery of the carrier element claim 28 , in a plain bearing.31. The electric tool as recited in claim 30 , wherein the plain bearing is mounted in a blocking member which is embodied to prevent the at least one spindle roller from sliding out of the carrier element in a ...

POWER TOOL HAVING A SPEED SELECTOR SWITCH

A power tool includes a tool housing defining a cavity and a pocket formed in a wall of the tool housing. A motor is positioned within the cavity, and a trigger mechanism is moveably coupled to the tool housing. A speed selector switch is positioned within the pocket, the speed selector switch including a push-button operable to receive a speed selection and a plurality of speed indicators. The speed selector switch is operable to output a speed signal based on the speed selection, and the speed indicators indicate the speed selection. The power tool further includes a controller operable to receive the speed signal from the speed selector switch, the speed signal indicative of a selected speed, receive an activation signal from the trigger switch, and operate the motor at the selected speed upon receiving the activation signal. 114-. (canceled)15. A power tool comprising:a tool housing defining a cavity, and including a pocket formed in a wall of the tool housing and positioned proximate to the cavity;a motor positioned within the cavity;a trigger mechanism moveably coupled to the tool housing; wherein the push-button is operable to receive a speed selection,', 'wherein the speed selector switch is operable to output a speed signal based on the speed selection,', 'wherein the speed indicators indicate the speed selection; and, 'a speed selector switch positioned within the pocket, the speed selector switch including a push-button and a plurality of speed indicators,'} receive the speed signal from the speed selector switch, the speed signal indicative of a selected speed,', 'receive an activation signal from the trigger switch, and', 'operate the motor at the selected speed upon receiving the activation signal., 'a controller operable to'}16. The tool housing of claim 15 , wherein the pocket is positioned between an exterior surface and an interior surface of the tool housing wall.17. The power tool of claim 15 , wherein the speed selector switch is positioned ...

POWER DRILL

The invention relates to a power drill, having a tool-clamping device that is fastened to a spindle shaft, having a torque clutch that includes an axially movable clutch plate on which an axial force is exerted by a plurality of compression springs that cooperate at least indirectly with an adjusting nut situated on a housing component. The compression springs are accommodated in first recesses embodied in the longitudinal direction of the housing component. A device for axially moving an axial bearing situated on the spindle shaft, is provided at the end of the spindle shaft oriented toward the tool-clamping device. According to the invention, on its side oriented toward the clutch plate, the device for axially moving the axial bearing has at least one actuating section that is situated in a second recess of the housing component and on the side oriented toward the clutch plate, cooperates with an adjusting element for the device. 128.-. (canceled)29. A power drill , comprising:a spindle shaft;a tool holder;a torque clutch including an axially movable clutch member and at least one spring member which exerts an axial force on the clutch member;a first adjusting element configured to adjust the axial force exerted by the at least one spring element on the clutch member;wherein the first adjusting element has a root circle diameter which is greater than an envelope curve of the at least one spring member.30. A power drill as defined in claim 29 , wherein the first adjusting element is arranged on a housing component.31. A power drill as defined in claim 30 , wherein the housing component has at least one first recess in a longitudinal direction of the housing component claim 30 , the first recess being configured to accommodate the at least one spring member.32. A power drill as defined in claim 29 , comprising an axial bearing situated on and providing guidance for the spindle shaft.33. A power drill as defined in claim 32 , comprising a device for axially moving ...

Slide Switch for a Power Tool

A power tool includes a variable speed motor coupled to a drive member. A power circuit electrically connects the variable speed motor to a power source. A variable speed signal generator generates a variable speed control signal indicating an operating speed for the motor. The operating speed is dependent upon a value of a variable speed selection signal generated by a slide switch. The slide switch includes a linear slide potentiometer for generating the variable speed selection signal. An actuator slides along the potentiometer to control the value of the selection signal. The slide switch includes an ON/OFF contact and a lever arm that is movable into and out of contact with the ON/OFF contact. The actuator is configured to prevent the lever arm from contacting the ON/OFF contact when the actuator is in an OFF position in relation to the slide potentiometer thereby opening the power circuit. 1. A power tool comprising:a housing defining a longitudinal axis;a variable speed motor supported by the housing;a drive member coupled to the motor and defining an axis of rotation that is aligned with the longitudinal axis, the drive member including a tool holder located exterior to the housing;a variable speed signal generator that generates a variable speed control signal indicating an operating speed for the motor, the operating speed being dependent upon a value of a variable speed selection signal;a power circuit that electrically connects the variable speed motor to a power source;a slide switch attached to the housing, the slide switch including i) a slide potentiometer that outputs the variable speed selection signal, and ii) an actuator configured to slide between a first position and a second position in relation to the slide potentiometer, the variable speed selection signal having a value that varies corresponding to a position of the actuator in relation to the slide potentiometer;wherein the slide switch includes an ON/OFF contact and an ON/OFF lever arm ...

MULTI-STAGE TRANSMISSION FOR A POWER TOOL

A multi-stage planetary transmission includes a transmission housing and a first planetary stage at least partially positioned in a transmission housing. The first planetary stage includes a first stage ring gear, a first stage carrier, and a plurality of first stage planet gears supported by the first stage carrier. A motor output pinion is engaged with each of the first stage plant gears. The transmission further includes a second planetary stage positioned downstream of the first planetary stage to receive torque from the first planetary stage and a shift mechanism operable to move the first stage ring gear between a first position, in which the first stage ring gear is rotatably fixed relative to the transmission housing for enabling the first planetary stage, and a second position, in which the first stage ring gear is coupled for co-rotation with the first stage carrier for disabling the first planetary stage. 1. A multi-stage planetary transmission powered by an electric motor having an output pinion , the transmission comprising:a transmission housing; a first stage ring gear,', 'a first stage carrier, and', 'a plurality of first stage planet gears supported by the first stage carrier and rotatable relative thereto, the motor output pinion being engaged with each of the first stage plant gears;, 'a first planetary stage at least partially positioned in the transmission housing and including'}a second planetary stage positioned downstream of the first planetary stage to receive torque from the first planetary stage; anda shift mechanism operable to move the first stage ring gear between a first position, in which the first stage ring gear is rotatably fixed relative to the transmission housing for enabling the first planetary stage, and a second position, in which the first stage ring gear is coupled for co-rotation with the first stage carrier for disabling the first planetary stage.2. The multi-stage planetary transmission of claim 1 , further comprising a ...

Device for Screwing Without Reaction Force in the Handle

A device is provided for screwing. The device includes a handle housing and a gear reduction housing. The handle housing includes a handle and lodges a motor. The gear reduction housing lodges a gear reduction unit, the input of which cooperates with the output of the motor. The gear reduction unit includes a single output cooperating with a rotating end element for cooperating with an element to be screwed. The gear reduction housing is linked to the handle housing by a rotating link. The rotating link is configured in a way such that a negligible reaction force is transmitted to the handle housing during an operation of screwing. 1. A device for screwing comprising:a handle housing comprising a handle and lodging a motor; anda gear reduction housing, said gear reduction housing lodging a gear reduction unit, an input of which cooperating with an output of said motor, said gear reduction unit comprising a single output cooperating with a rotating end element that is configured for cooperating with an element to be screwed, said gear reduction housing being linked to said handle housing by a rotating link, which is configured in a way such that a negligible reaction force is transmitted to said handle housing during an operation of screwing.2. The device according to claim 1 , wherein said rotating link comprises means of transmission claim 1 , to said handle housing claim 1 , of a reaction torque having an intensity that is substantially identical claim 1 , and a direction that is opposite claim 1 , to that of the reaction torque transmitted by said gear reduction unit to said motor.3. The device according to claim 2 , wherein said gear reduction unit comprises a first epicyclic gear train having a first sun gear interdependent with said motor claim 2 , first planet gears mounted on a first planet carrier claim 2 , and a ring gear mounted freely in rotation in said gear reduction housing claim 2 , said means of transmission comprising a second epicyclic train ...

HANDHELD MACHINE TOOL HAVING A SPINDLE-LOCKING DEVICE

In a handheld machine tool having a tool housing, in which a drive motor is situated for driving a drive element equipped with at least one clamping surface, to which a spindle-locking device equipped with a blocking element and at least one spindle cylinder is assigned, the at least one spindle cylinder being able to be clamped in a spindle-lock operation of the spindle-locking device between the at least one clamping surface and the blocking element n order to prevent the drive element from rotating relative to the tool housing, the spindle-locking device has an impingement element, which is developed to impinge on the at least one spindle cylinder with a specified force in the direction of the at least one clamping surface. 1. A handheld machine tool , comprising:a drive motor;a spindle-locking device having a blocking element and at least one spindle cylinder; and the at least one spindle cylinder is able to be clamped in a spindle-lock operation of the spindle-locking device between the at least one clamping surface and the blocking element in order to prevent the drive element from rotating relative to the tool housing, and', 'the spindle-locking device includes an impingement element that impinges on the at least one spindle cylinder with a specified force in a direction of the at least one clamping surface., 'a tool housing, in which the drive motor is situated for driving a drive element equipped with at least one clamping surface, to which the spindle-locking device is assigned, wherein2. The handheld machine tool as recited in claim 1 , wherein the impingement element includes a viscoelastic ring for impinging on the at least one spindle cylinder.3. The handheld machine tool as recited in claim 2 , wherein the viscoelastic ring is situated at least in sections in a groove developed on an inner circumference of the blocking element.4. The handheld machine as recited in claim 3 , wherein the groove is an annular groove.5. The handheld machine tool as ...

ELECTRONIC DRILL WITH REVOLVING REPLACEABLE DRILLING HEADS

An electronic drill with revolving replaceable drilling heads includes a housing, a driving unit, a rotary cover, and a plurality of drill heads. The housing has an opening, a through hole, a containing room connected therebetween. A motor container is disposed within the containing room to contain a motor of the driving unit. The rotary cover is assembled to the housing and is rotatable so that the plurality of drill heads coupled to the rotary cover is moveable freely in a rotary track between the motor container and the housing. One of the drill heads may be rotated to be aligned with a rotary hole of a gear set driven by the motor and pushed forward for use. The drill head can also be retracted backward and replaced in the electronic drill by rotating the rotary cover, so that another drill head can be pushed outward for use. 1. An electronic drill with revolving replaceable drilling heads , comprising: an opening located at the rear end;', 'a through hole located at the front end;', 'a containing room connected between the opening and the through hole, the containing room having a groove disposed at an inner wall and extending to correspond to the through hole;', 'a motor container disposed within the containing room with a rotary track defined between the motor container and the inner wall of the containing room, the rotary track surrounding the motor container;, 'a housing having a front end and a rear end, the housing comprising a motor disposed in the motor container: and', 'a gear set disposed outside the motor container and driven by the motor and having a rotary hole in connection with the through hole;, 'a driving unit, comprisinga rotary cover detachably assembled to the rear end of the housing and covering the opening, the rotary cover comprising a wheel rotatable with respect to the housing and comprising at least two hollow recesses; anda plurality of drill heads, each drill head detachably coupled to one of the recesses and directed toward the ...

PROTECTION TOOL FOR AN ELECTRONIC DRILL

A protection tool for an electronic drill provides various functions when drilling is carried out. The electronic drill has a front end with a through hole located at the front end and a drill head extending through out the through hole. The protection tool is moveably mounted at the front end of the electronic drill along an operation direction. A guard plate includes a pore aligning with the through hole and provides pass way for the drill head. A supporting frame is assembled with the guard plate and is moveably mounted at the front end of the electronic drill along the operation direction, so that the guard plate is positioned at a variable distance from the front end according to the movement of the supporting frame with respect to the front end. 1. A protection tool for an electronic drill , the electronic drill having a front end with a through hole located at the front end and a drill head extending through out the through hole , the protection tool moveably mounted at the front end of the electronic drill along an operation direction and comprising:a guard plate, comprising a pore aligning with the through hole; anda supporting frame assembled with the guard plate and moveably mounted at the front end of the electronic drill along the operation direction, so that the guard plate is positioned at a variable distance from the front end according to the movement of the supporting frame with respect to the front end.2. The protection tool of claim 1 , wherein the supporting frame comprises a plurality of rods and the electronic drill comprises a plurality of grooves claim 1 , each rods extending into a corresponding groove and moveable in the groove along the operation direction.3. the protection tool of claim 2 , wherein at least one of the rods comprises a scale along the operation direction for showing the distance of the guard plate from the front end.4. The protection tool of claim 1 , wherein the guard plate is in parallel with the front end of the ...

ROTARY IMPACT TOOL

A rotary impact tool includes a motor housing, an electric motor supported in the motor housing, and a drive assembly for converting a continuous torque input from the motor to consecutive rotational impacts upon a workpiece. The drive assembly includes an anvil including an anvil lug and a hammer that is both rotationally and axially movable relative to the anvil. The hammer includes a hammer lug for imparting the consecutive rotational impacts upon the anvil lug. The rotary impact tool further comprises a printed circuit board assembly including a sensor that is configured to detect rotation of the anvil. The printed circuit board assembly is spaced from the anvil to define an axial gap therebetween. 1. A rotary impact tool comprising:a motor housing;an electric motor supported in the motor housing; an anvil including an anvil lug, and', 'a hammer that is both rotationally and axially movable relative to the anvil, the hammer including a hammer lug for imparting the consecutive rotational impacts upon the anvil lug; and, 'a drive assembly for converting a continuous torque input from the motor to consecutive rotational impacts upon a workpiece, the drive assembly including'}a printed circuit board assembly including an anvil sensor that is configured to detect rotation of the anvil, wherein the printed circuit board assembly is spaced from the anvil to define an axial gap therebetween.2. The rotary impact tool of claim 1 , further comprising an impact housing extending from a front end of the motor housing claim 1 , wherein the drive assembly is at least partially supported within the impact housing claim 1 , and wherein the anvil includes a drive end extending from the impact housing.3. The rotary impact tool of claim 2 , wherein the printed circuit board assembly is located inside the impact housing.4. The rotary impact tool of claim 3 , further comprising a carrier supporting the printed circuit board assembly claim 3 , wherein the carrier is coupled to a front ...

MULTISPEED POWER TOOL

A tool with a transmission having a reduction gearset and a speed selector. The speed selector has a member, an actuator and a shifter assembly. The member is movable between a first position, in which the member is non-rotatable, and a second position in which the member is coupled to a planet carrier of the reduction gearset for common rotation. The actuator includes a pivoting yoke and a follower that is coupled to the yoke. The follower engages the member so as to be axially movable with the follower. The shifter assembly has a selector switch, a switch fork, and a pair of springs. The selector switch is slidable between a first switch position and a second switch position. The shift fork is slidably coupled to the selector switch and receives the yoke. The springs cooperate to bias the shift fork relative to the selector switch into a neutral position. 1. A tool comprising:a housing;a motor housed in the housing;a transmission assembly received in the housing, the transmission assembly having a reduction gearset;the transmission assembly further including a locking member including a plurality of locking projections, the locking member including a circular hole;wherein the reduction gearset has a first ring gear and is selectively operable in a first overall gear ratio and a second overall gear ratio;wherein the transmission assembly further includes a movable member, the movable member including locking teeth; andwherein the movable member in the transmission assembly selectively non-rotatably engages the locking member through engagement of the movable member locking teeth with the locking projections; andwherein the locking member is held in a gear case in a circumferentially extending groove in a manner that restricts relative rotation and axial movement of the locking member with respect to the gear case.2. The tool according to claim 1 , wherein the groove is non-circular.3. The tool according to claim 2 , wherein the locking member includes a locking ...

ELECTRONIC CLUTCH FOR POWER TOOL

A method is presented for controlling operation of a power tool having an electric motor drivably coupled to an output spindle. The method includes: receiving an input indicative of a clutch setting for an electronic clutch, where the clutch setting is selectable from a plurality of driver modes; setting the value of a maximum current threshold in accordance with the selected one of the plurality of driver modes; determining rotational speed of the electric motor; determining an amount of current being delivered to the electric motor; comparing the amount of current being delivered to the electric motor to the maximum current threshold; and interrupting transmission of torque to the output spindle when the amount of current being delivered to the electric motor exceeds the maximum current threshold and the rotational speed of the electric motor is decreasing. 1. A power tool comprising:a housing;an output spindle;an electric motor disposed in the housing and configured to provide torque to the output spindle;an input switch for actuating the motor; a current sensing circuit that generates a sensed current signal that corresponds to an amount of current being delivered to the motor;', 'a rotation sensing circuit that generates a sensed rotation signal that corresponds to at least one of an angular position, a speed, and an acceleration of the motor output shaft; and', 'a controller coupled to the current sensing circuit and the rotation sensing circuit, wherein the controller, in a first mode of operation, initiates a first protective operation to interrupt transmission of torque to the output spindle when the sensed rotation signal indicates that the rotational speed of the motor is decreasing and the sensed current signal exceeds a first current threshold value., 'an electronic clutch configured to interrupt transmission of torque to the output spindle when a threshold torque value is exceeded, the electronic clutch including'}2. The power tool of wherein the ...

POWERED DRILL APPARATUS

A portable power drill () is disclosed having a chuck or drill collar () at one end and a substantially cylindrical (or frusto-conical) twist throttle handle () at the other end. Rotation of the handle in the direction of forward rotation of the chuck decreases the drill speed and, conversely, rotation of the handle in the direction of reverse rotation of the chuck increases the drill speed. Consequently, in the event of an auger locked in the chuck becoming jammed, the reaction forces experienced by the drill unit rotate the drill unit in a direction such that throttle decreases the drill speed. In addition, the drill unit is provided with forward () and reverse gears () and a forward/reverse selection mechanism () which is actuated by a forward force, or a withdrawing force respectively being applied to the drill unit via an operator who holds the handles () of the drill unit. 1. A portable power drill unit comprising an operational axis having a chuck means at one end and a substantially cylindrical or frusto-conical twist throttle handle at the other end , and wherein rotation of the handle in the direction of forward rotation of the chuck means decreases the drill speed , and rotation of the handle in the direction of reverse rotation of the chuck means increases the drill speed , whereby reaction forces created by a jammed auger rotated by said chuck means decrease the drill speed.2. The drill unit as claimed in wherein said chuck means is powered by an internal combustion engine.3. The drill unit as claimed in wherein said twist throttle handle is similar to that of a conventional motorbike accelerator.4. The drill unit as claimed in wherein said handle is able to be twisted about its longitudinal axis through an arc of approximately 10°-40°.5. The drill unit as claimed in and having a second handle located in a dorsal position and transverse to said operational axis.6. A portable power drill unit having an operational axis defined by a chuck means at one end ...

ELECTRIC POWER TOOL

An electric power tool includes a motor, an output shaft, a drive force transmission configured to reduce drive speed of the motor and transmit drive force of the motor to the output shaft; a triqger that can be pulled by a user; a rotation speed changing circuitry configured to change a rotation speed of the output shaft that corresponds to a maximum pulled amount of the trigger to a limited rotation speed that is lower than a maximum rotation speed of the output shaft in a non-limited rotation speed mode; and a rotation speed control circuitry configured to control a rotation speed of the motor in correspondence with a pulled, amount of the trigger to obtain the rotation speed of the output shaft that is changed by the rotation speed changing circuitry. 1. An electric power tool comprising:a motor;an output shaft;a drive force transmission configured to reduce drive speed of the motor and transmit drive force of the motor to the output shaft;a trigger that can be pulled by a user;a rotation speed changing circuitry configured to change a rotation speed of the output shaft that corresponds to a maximum pulled amount of the trigger to a limited rotation speed that is lower than a maximum rotation speed of the output shaft in a non-limited rotation speed mode; anda rotation speed control circuitry configured to control a rotation speed of the motor in correspondence with a pulled amount of the trigger to obtain the rotation speed of the output shaft that is changed by the rotation speed changing circuitry.2. The electric power tool according to claim 1 , further comprising an upper limit rotation speed selector that provides the rotation speed changing circuitry with a selector signal for switching claim 1 , in steps claim 1 , the rotation speed of the output shaft corresponding to the maximum pulled amount of the trigger.3. The electric power tool according to claim 2 , further comprising a hand grip and an extended portion that forwardly extends from a lower end of ...

MULTISPEED POWER TOOL

A tool with a transmission assembly having a reduction gearset and a speed selector. The speed selector has a member, an actuator and a shifter assembly. The member is movable between a first position, in which the member is non-rotatable, and a second position in which the member is coupled to a planet carrier of the reduction gearset for common rotation. The actuator includes a pivoting yoke and a follower that is coupled to the yoke. The follower engages the member so as to be axially movable with the follower. The shifter assembly has a selector switch, a switch fork, and a pair of springs. The selector switch is slidable between a first switch position and a second switch position. The shift fork is slidably coupled to the selector switch and receives the yoke. The springs cooperate to bias the shift fork relative to the selector switch into a neutral position. 1. A tool comprising:a housing assembly defining a handle;a motor housed in the housing;a transmission assembly received in the housing assembly, the transmission assembly having a reduction gearset;the transmission assembly further including a locking member including a plurality of locking projections, the locking member including a circular hole;wherein the reduction gearset has a first ring gear and is selectively operable in a first overall gear ratio and a second overall gear ratio;wherein the transmission assembly further includes a movable member, the movable member including locking teeth; andwherein the movable member in the transmission assembly non-rotatably engages the locking member when the transmission assembly is operated in the first overall gear ratio through engagement of the movable member locking teeth with the locking projections and wherein the movable member locking teeth and the locking projections are disengaged when the transmission assembly is operated in the second overall gear ratio so as to allow rotation of the movable member relative to the locking member; andwherein the ...

POWER TOOL

It is an object to provide a novel technique for releasing an intervening member of a driving member. A representative screwdriver is provided with a motor and a driving mechanism. The driving mechanism has a spindle, a lock sleeve, rollers, a driving gear, a retainer and a spring receiver. When driven with the rollers held between the lock sleeve and the driving gear, the spindle is rotated in a normal direction. The lock sleeve has an inclined part and the retainer has an inclined part. The lock sleeve and the retainer move with respect to each other in the axial direction and the circumferential direction by sliding contact between the inclined parts. This relative movement in the circumferential direction is utilized to release the holding of the rollers. 1. A power tool , which performs a prescribed operation by rotationally driving a tool accessory detachably coupled to a front end region , comprising:a motor, anda driving mechanism that is driven by the motor and rotationally drives the tool accessory, the driving mechanism including:a tool accessory driving shaft to which the tool accessory is coupled,a driving member that is coaxially disposed with the tool accessory driving shaft and rotationally driven by the motor, andan intervening member that is disposed between the tool accessory driving shaft and the driving member and transmits rotation of the driving member to the tool accessory driving shaft when held between the tool accessory driving shaft and the driving member, while interrupting the transmission of rotation of the driving member to the tool accessory driving shaft when released from the holding, anda releasing mechanism that is driven by the motor and releases the holding.2. The power tool as defined in claim 1 , wherein:the tool accessory driving shaft is configured to be movable between a first position close to the front end region and a second position away from the front end region in an axial direction of the tool accessory driving ...

HAND-HELD POWER TOOL

A manual machine tool having a drive motor, a gearbox and a tool holder, wherein a motor output of the drive motor having a gearbox drive of the gearbox and a gearbox output of the gearbox are coupled to the tool holder in a manner which permits rotation, wherein the manual machine tool has an actuating device to adjust the gearbox between its switch positions, wherein the actuating device has an actuating part which is movably mounted between actuating positions relative to a machine housing of the manual machine tool and which can be manually actuated, which actuating part is coupled to the at least one switching gear element to set the switch positions. The actuating device has a locking arrangement with locking indentations arranged on a locking structure to lock the actuating part in the actuating positions, which locking indentations are assigned to actuating positions of the actuating part, and with a locking part to engage in the locking indentations. 1. A manual machine tool having a drive motor , a gearbox and a tool holder , wherein a motor drive of the drive motor with a gearbox drive of the gearbox and a gearbox output of the gearbox which can be rotated about a rotational axis is coupled to the tool holder in a manner which permits rotation , wherein the manual machine tool has an actuating device to adjust the gearbox between its switch positions in which the speed ratios between the gearbox drive and the gearbox output are different , wherein the actuating device has an actuating part which is movably mounted relative to a machine housing of the manual machine tool between actuating positions assigned to the switch positions of the gearbox and which can be manually actuated by an operator of the manual machine tool , which is coupled to the at least one switching gear element by means of a coupling element to set the switch positions , and wherein , the actuating device used to lock the actuating part in the actuating positions has a locking ...

Long Hole Drill Assembly With Power Cut-Off

A safety barrier assembly for use with pneumatically and/or hydraulically powered tool, includes an elongated strap barrier connected to an actuator block. The actuator block is adapted for releasable connection to a valve housing through which the tool driving fluid flow passes. Decoupling of the actuator block from the valve housing effects the repositioning of fluid control valves to prevent continued driving fluid flow to the tool. 1. A pneumatic power cut-off assembly for use with a pneumatically operable tool , the cut-off assembly including a valve housing for fluidic connection to a pneumatic air supply of the tool to selectively interrupt a driving flow of air thereto , a releasable actuator provided for selective attachment to and detachment from the valve housing , and barrier element coupled to the releasable actuator ,{'claim-text': ['a coupling surface for mated engagement with a mating surface of the releasable actuator, an axially extending bore being formed in said coupling surface,', 'a pneumatic fluid flow path extending at least partially through the housing from an inlet end to an outlet end, and', 'a valve chamber formed in said housing and having a chamber inlet fluidically communicating with the inlet end, a chamber outlet fluidically communicating with the outlet end, and a valve seat,'], '#text': 'the valve housing comprising,'}{'claim-text': ['the sealing member disposed in said valve chamber and selectively positionable between a sealing position, where said sealing member engages said valve seat to substantially restrict a flow of air between said chamber inlet to said chamber outlet, and a flow position, where said sealing member is moved away from said valve seat to permit the flow of air from said chamber inlet to said chamber outlet,', 'the piston including a ferromagnetic stem portion, axially movable relative to said bore between a retracted position, where said end portion is moved outwardly relative to said coupling face and the ...

POWER TOOL WITH COMPLIANT SHIFTING MECHANISM

A compliant shifting mechanism for a power tool includes a selector, a first shift plate rotatable in response to rotation of the selector, a second shift plate rotatable in response to rotation of the first shift plate, a shift member moveable in response to rotation of the second shift plate to shift between a first mode of operation and a second mode of operation, a first torsion spring coupled to the first shift plate, and a second torsion spring coupled to the second shift plate. In response to rotation of the selector in a first direction, the first torsion spring may bias the first shift plate in the first direction for shifting compliance in the first direction. In response to rotation of the selector in an opposite second direction, the second torsion spring may bias the second shift plate in the second direction for shifting compliance in the second direction.

HAND-HELD POWER TOOL WITH TORQUE LIMITING UNIT

A hand-held power tool has a torque-limiting unit with which a maximum torque transferred from a motor output shaft to a tool driver is adjustable by an operator. The torque-limiting unit has a spring system with spring elements having substantially similar characteristics (such as length, compression forces, etc.) and yet generating different spring forces. 1. A hand-held power tool , comprising:a motor output shaft;a tool driver;a first and a second locking disc;a thrust member; anda torque-limiting unit with which a maximum torque transferred from said motor output shaft to said tool driver is adjustable by an operator, said torque-limiting unit including a spring system, said spring system including substantially similar spring elements generating different spring forces,wherein said spring system is held by said second locking disc and each spring element of the spring system is held between a pin of the second locking disc and a pin of said thrust member, wherein the first locking disc is connected with the second locking disc via cams, wherein said cams are built on each of said locking discs, wherein if a torque applied to the tool driver reaches a selected maximum torque level, the second locking disc is deflected against the spring system by beveled flanks of said cams, and the first locking disc can rotate against the second locking disc.2. A hand-held power tool as defined in claim 1 , wherein said spring elements of said spring system have substantially similar elasticities.3. A hand-held power tool as defined in claim 1 , wherein said spring elements of said spring system are compression springs.4. A hand-held power tool as defined in claim 1 , wherein said spring elements of said spring system have substantially similar lengths.5. A hand-held power tool as defined in claim 1 , wherein said spring system includes six spring elements.6. A hand-held power tool as defined in claim 1 , wherein one of said spring elements of said spring system is configured ...

HAND-HELD POWER TOOL

A hand-held power tool is provided which includes a clutch housing of a torque clutch, and a planetary gear, situated in a gear housing, for transmitting a torque which is generated by a drive motor to a drive shaft. The clutch housing cooperates with the planetary gear via a pressure plate. The pressure plate is displaced in the axial direction in order to disengage the torque clutch. The axial relative motion of the pressure plate causes an axial relative motion between a switching element and an associated optical sensor, via which the drive motor may be switched off. 1. A hand-held power tool , comprising:a clutch housing of a torque clutch;a gear housing;a drive motor;a drive shaft;a switching element;an optical sensor associated with the switching element;a pressure plate displaced in an axial direction in order to disengage the torque clutch; and the clutch housing cooperates with the planetary gear via the pressure plate, and', 'an axial relative motion of the pressure plate causes an axial relative motion between the switching element and the associated optical sensor., 'a planetary gear situated in the gear housing and for transmitting a torque which is generated by the drive motor to the drive shaft, wherein2. The hand-held power tool as recited in claim 1 , wherein:the switching element is a separate component, andthe switching element is suspended on the pressure plate with little axial play in such a way that the switching element undergoes the same axial relative motion as the pressure plate.3. The hand-held power tool as recited in claim 1 , wherein:the pressure plate has a connecting section that is inwardly situated in a radial direction, anda connection between the pressure plate and the switching element is established via the connecting section.4. The hand-held power tool as recited in claim 3 , wherein:the connecting section includes a tappet that protrudes inwardly in the radial direction, andthe switching element accommodates the tappet in a ...

ENHANCED MATERIAL PROCESSING DEVICE AND METHOD

An enhanced material-processing device and method are disclosed, having a processing tool of substantially circular circumference, which is operative with a power tool having a rotating spindle and jaws, which clamp the processing tool. The enhanced material-processing device has a central opening that is entered concentrically in the processing tool for receiving a clutch mechanism, and a hub structure. The hub structure is associated with the clutch mechanism to form a slip clutch that is integrally mounted in the enhanced material-processing device and is operative by application of an axial compression friction fit on the processing tool, which slips relative to the rotating spindle when a threshold torque limit is reached. The clutch mechanism is preloaded in axial compression through a predetermined elastic strain distance to provide a friction fit having a torque limit threshold, which torque limit of the slip clutch is controllably pre-adjustable. 1. An enhanced material-processing device including a processing tool of substantially circular circumference operative with a power tool having a rotating spindle , and clamps for clamping the material processing device therebetween , the enhanced material-processing device comprising:a central opening entered concentrically in the processing tool for receiving a hub structure, andthe hub structure being coupled to the processing tool to form a slip clutch integrally embedded in the enhanced material-processing device and configured to slip relative to the rotating spindle when a threshold torque limit is reached.2. The enhanced material-processing device of claim 1 , wherein:the slip clutch is preloaded in predetermined axial compression elastic strain deformation and is configured to apply a selected axial interference pressure fit on the processing tool.3. The enhanced material-processing device of claim 1 , wherein the hub structure is configured as at least one piece of material.4. The enhanced material- ...

POWER TOOL

It is an object of the invention to provide a technique for enhancing the operability of a power tool. 1. A power tool , which rotationally drives a tool accessory around a prescribed axial direction , comprising:a tool body,a rotary shaft that holds the tool accessory in a front end region of the tool body such that a tip of the tool accessory protrudes from the tool body,a brushless motor having an output shaft,an operating member that is manually operated by a user to drive the brushless motor, anda rotation transmitting mechanism that transmits rotation of the output shaft to the rotary shaft, wherein:the rotary shaft is movable between a first position on a front end region side of the tool body and a second position apart from the front end region side in the axial direction,a detecting mechanism that detects the position of the rotary shaft in the axial direction, anda controller that controls the rotation speed of the brushless motor according to the position of the rotary shaft detected by the detecting mechanism, wherein:the rotation transmitting mechanism interrupts transmission of rotation of the output shaft to the rotary shaft when the rotary shaft is located at the first position, and transmits rotation of the output shaft to the rotary shaft when the rotary shaft is located at the second position,the detecting mechanism is arranged such that the detecting mechanism and the front end on hold the rotation transmitting mechanism therebetween in the axial direction,the controller has a first drive mode of driving the brushless motor at a first rotation speed when the rotary shaft is located at the first position, and a second drive mode of driving the brushless motor at a second rotation speed exceeding the first rotation speed when the rotary shaft is located at the second position, andafter the operating member is operated, the controller switches between the first drive mode and the second drive mode based on the position of the rotary shaft in the ...

ROTARY POWER TOOL

A power tool includes a housing, a motor, a spindle, a handle holder and an auxiliary handle. The housing includes a motor housing portion, a drive housing, and a mounting portion between the motor housing portion and the drive housing. The motor is located within the motor housing portion. The spindle is configured to rotate about a rotational axis in response to torque received from the motor. The handle holder is coupled to the drive housing and defines a first mounting point, and the mounting portion defines a second mounting point. The auxiliary handle is selectively attachable to each of the first and second mounting points, and the first mounting point is located at a first position along the rotational axis, and the second mounting point is located at a second position offset from the first position in a direction along the rotational axis. 1. A power tool , comprising:a housing including a motor housing portion, a drive housing, and a mounting portion between the motor housing portion and the drive housing;a motor located within the motor housing portion;a spindle configured to rotate about a rotational axis in response to torque received from the motor;a handle holder coupled to the drive housing, the handle holder defining a first mounting point, and the mounting portion defining a second mounting point; andan auxiliary handle selectively attachable to each of the first and second mounting points,wherein the first mounting point is located at a first position along the rotational axis, and the second mounting point is located at a second position offset from the first position in a direction along the rotational axis.2. The power tool of claim 1 , wherein the auxiliary handle includes a threaded shank claim 1 , and wherein each of the first and second mounting points includes a threaded bore configured to receive the threaded shank.3. The power tool of claim 1 , wherein the handle holder is selectively rotatable relative to the drive housing about the ...

ROTARY POWER TOOL

A power tool includes a housing, a motor supported within the housing, a handle extending from the housing, a trigger, a spindle, and a fluid delivery system. The handle defines a gap between the handle and the housing, and the trigger, coupled to the housing, is manipulable to energize the motor. The spindle is configured to rotate about a rotation axis in response to torque received from the motor, and the fluid delivery system is configured to supply fluid to the spindle. The fluid delivery system includes a valve operable to regulate a flow of fluid to the spindle, and the valve includes an actuator disposed within the gap. 1. A power tool , comprising:a housing;a motor supported within the housing;a handle extending from the housing and defining a gap between the handle and the housing;a trigger coupled to the handle, the trigger being manipulable to energize the motor;a spindle configured to rotate about a rotational axis in response to torque received from the motor; anda fluid delivery system configured to supply fluid to the spindle, the fluid delivery system including a valve operable to regulate a flow of fluid to the spindle,wherein the valve includes an actuator disposed within the gap.2. The power tool of claim 1 , wherein actuator is rotatable about a valve axis claim 1 , and wherein the valve axis is coplanar with the rotational axis of the spindle.3. The power tool of claim 1 , wherein the housing defines an annular volume surrounding the spindle claim 1 , wherein the spindle includes a radial aperture in communication with the annular volume claim 1 , and wherein the fluid delivery system is configured to supply fluid into the annular volume.4. The power tool of claim 1 , wherein the fluid delivery system includes a first connector coupled to the handle claim 1 , the first connector configured for attachment to a fluid supply line.5. The power tool of claim 4 , wherein the fluid delivery system includes a delivery line extending from a second ...

PNEUMATIC GRINDING TOOL

A pneumatic grinding tool includes a rotatable shaft, a rotor, a sleeve, a bearing assembly, a fixing member, and an air feed assembly. The rotatable shaft includes a rotatable main body, a first connecting portion, a second connecting portion, and a clamping portion for clamping a grinding head. The bearing assembly is positioned between the sleeve and the rotatable shaft. The fixing member is connected to the second connecting portion. The air feed assembly includes a main body, an air inlet, and an air outlet. One end of the main body is sleeved on the sleeve, and the rotor is received in the main body. The main body, the sleeve, the bearing assembly and the rotatable shaft cooperatively form an air chamber configured such that when air flows into the air chamber, and the vanes of the rotor rotate, the rotatable shaft rotates with the rotor. 1. A pneumatic grinding tool comprising:a rotatable shaft comprising a rotatable main body, a first connecting portion and a second connecting portion arranged at two opposing sides of the rotatable main body, and a clamping portion arranged at one side of the second connecting portion away from the rotatable main body, the clamping portion configured to clamp a grinding head;a rotor connected to the first connecting portion and comprising a plurality of vanes;a sleeve sleeved on the rotatableshaft;a bearing assembly positioned between the sleeve and the rotatable shaft;a fixing member connected to the second connecting portion to mount the grinding head; andan air feed assembly comprising a main body, an air inlet and an air outlet protruding from the main body, the air inlet being configured to couple to an external air source;wherein one end of the main body is sleeved at one end of the sleeve adjacent to the first connecting portion, and the rotor is received in the main body; andwherein the main body, the sleeve, the bearing assembly and the rotatable shaft cooperatively form an air chamber configured such that when air ...

Handheld Machine-Tool Device

A handheld machine-tool device has at least one gear unit, which has a drive element configured for pure rotational movement, and an output element configured for pure rotational movement, and which is configured to convert rotational speed and/or torque between the drive element and the output element. The gear unit has an eccentric element, which is configured to operate in at least one operating state to translate pure rotational movement of the drive element into eccentric movement in order to drive the output element. 1. A handheld machine-tool device , comprising:at least one gear unit having (i) a drive element configured for pure rotational movement, and (ii) an output element configured for pure rotational movement,wherein the at least one gear unit is configured for a conversion of rotational speed and/or torque between the drive element and the output element, andwherein the gear unit has an eccentric element, which is configured to operate in at least one operating state to translate pure rotational movement of the drive element into eccentric movement in order to drive the output element.2. The handheld machine-tool device according to claim 1 , wherein the gear unit comprises a transfer element claim 1 , which in the at least one operating state translates eccentric movement into pure rotational movement of the output element.3. The handheld machine-tool device according to claim 2 , wherein the gear unit comprises at least one rolling bearing configured and arranged to support the transfer element rotatably relative to the eccentric element.4. The handheld machine-tool device according to claim 2 , wherein the gear unit further comprises a supporting element claim 2 , which in the at least one operating state cooperates with the transfer element in order to translate the eccentric movement into the pure rotational movement.5. The handheld machine-tool device according to claim 1 , wherein the gear unit is formed as a cycloidal gear.6. The handheld ...

HOLE CHAMFERING DEVICE

The present disclosure belongs to the field of machining of chamfers of holes. The hole chamfering device includes blades in bilateral symmetry and a blade distance adjusting, through the blade distance adjusting, the distance between the blades on the left side and the right side can be adjusted, thus, after the blades on the left side and the right side of the hole chamfering device process chamfers on the front face of a hole, the distance between the blades is reduced to enable the blades to pass through the hole to process chamfers on the back face of the hole, after processing of the chamfers on the back face of the hole is completed, the distance between the blades is reduced, the hole chamfering device not only can chamfer the front face of the hole, but also can chamfer the back face of the hole. 1. A hole chamfering device , comprising blades in bilateral symmetry and a blade distance adjusting assembly , wherein the blades are double-cutting-edge blades , each blade comprises a first cutting edge inclined from outside to inside from top to bottom and a second cutting edge inclined from inside to outside from top to bottom; andthe blade distance adjusting assembly comprises a first guide rail, a second guide rail, a first sliding block, a second sliding block, a spring and a V-shaped block, the first guide rail and the second guide rail are in bilateral symmetry, the first sliding block is mounted on the first guide rail, the second sliding block is mounted on the second guide rail, and the first sliding block and the second sliding block are connected through the spring; the two blades are respectively mounted on the first sliding block and the second sliding block; and the V-shaped block is positioned between the first sliding block and the second sliding block, and two sides of the V-shaped block are respectively matched with the first sliding block and the second sliding block in a wedge-shaped mode.2. The hole chamfering device according to claim 1 , ...

AUTOMATIC TRANSMISSION FOR POWER TOOLS

An automatic gearshift device for a power tool includes a speed reduction mechanism that decelerates and transmits a rotary power of a motor, a ring gear that slides and moves to switch a speed reduction ratio, a cam member that moves the ring gear, a rotation body rotated in cooperation with the cam member, a position detector that detects the position of the ring gear, and a controller that controls the driving of the gearshift motor based on the value generated by the position detector. An adjustment gear forming the rotation body includes a slot used as a positioning mark at a predetermined location in the rotating direction. When the slot of the adjustment gear is aligned with a predetermined device side positioning reference, the rotation body is positioned in an initial position in a relative positional relationship with the ring gear. 1. An automatic gearshift device for a power tool comprising:a speed reduction mechanism including a gear member, wherein the speed reduction mechanism decelerates and transmits a rotary power of a driving source;a switching member that slides and moves to an engagement position where the switching member engages with the gear member of the speed reduction mechanism to switch a speed reduction ratio of the speed reduction mechanism;a gearshift motor;a cam member driven and rotated by the gearshift motor to move the switching member to the engagement position;a rotation body rotated in cooperation with the cam member when driven by the gearshift motor, wherein the rotation body includes a positioning mark set at a predetermined position in a rotating direction of the rotation body, and the rotation body is positioned in an initial position in a predetermined relative positional relationship with the switching member;a position detector that detects movement of the switching member to the engagement position and generates a value indicating that the switching member has moved to the engagement position when the rotation body is ...

Power Tool

A power tool includes: a motor; a fan driven by the motor and defining an axis and a radial direction; and a housing for accommodating the motor and the fan therein, the housing including: a peripheral wall formed with a ventilation hole; and a grid partly covering the ventilation hole, the ventilation hole being positioned adjacent to the fan and having a shape defined by a circumferential surface, the grid including at least one elongated portion extending in a longitudinal direction perpendicular to the radial direction, and a distance from the axis of the fan to the circumferential surface is different from a distance from the axis of the fan to one elongated portion in the radial direction of the fan. 1. A power tool comprising:a motor configured to drive an end bit;a fan configured to be driven by the motor and defining an axis and a radial direction; anda housing accommodating the motor and the fan therein, the housing including:a peripheral wall having a ventilation hole formed therein, the ventilation hole being positioned adjacent to the fan and having a shape defined by a circumferential surface whose length in the radial direction is coincident with a thickness of the peripheral wall; anda grid configured to partly cover the ventilation hole and including at least one elongated portion extending in an longitudinal direction perpendicular to the radial direction, characterized in that:a distance from the axis of the fan to the circumferential surface is different from a distance from the axis of the fan to one elongated portion in the radial direction of the fan, if a plurality of elongated portions are provided, the one elongated portion being an elongated portion closest to the circumferential surface among the plurality of elongated portions, or if a single elongated portion is provided, the one elongated portion being the single elongated portion.2. The power tool according to claim 1 , wherein the grid includes a plurality of elongated portions claim ...

POWER TOOL AND TORQUE-RESPONSIVE GEAR UNIT FOR A POWER TOOL

The present specification relates to a two-speed power transmission for a power tool comprising a planetary gear and a torque responsive gear shift mechanism for directing torque through the planetary gear in a high torque/low speed mode or past the planetary gear in a low torque/high speed mode, and comprising a driving member, a driven member, and a number of coupling elements arranged to intercouple in a first position the driving member and the driven member and in a second position the planetary gear and the driven member, the driving member comprising a number of recesses and axially acting first cam means for cooperation with the coupling elements in the first position forming part thereof. The present specification also relates to power tool comprising such a gear unit and a method for controlling such a power tool. 1. A two-speed power transmission configured for use in a power tool , said power tool comprising a housing; an input shaft and an output shaft , wherein said two-speed power transmission comprising:a planetary gear comprising a sun wheel connected to said input shaft, a ring gear secured in the housing, and a planet wheel carrier;a torque responsive gear shift mechanism for directing torque through said planetary gear in a high torque/low speed drive mode or past said planetary gear in a low torque/high speed drive mode, said gear shift mechanism comprising a driving member connected to the sun wheel of said planetary gear, a driven member connected to said output shaft, and a number of coupling elements arranged to intercouple in a first position said driving member and said driven member and to intercouple in a second position said planet wheel carrier and said driven member,wherein said driven member comprises a number of axially extending grooves arranged to support said coupling elements for axial displacement of said coupling elements between said first and said second position, an axially acting first cam means for cooperation with said ...

HAND-HELD POWER TOOL INCLUDING A MODE-SETTING UNIT

In a hand-held power tool including a gear for driving an output shaft, which is situated in an assigned gear housing, and including a mode-setting unit for setting the operating mode for an impact drilling mode, a drilling mode, or a screwing mode, the mode-setting unit including a rotatable actuating element and a rotatable setting element coupled to the rotatable actuating element. The setting element is coupled, at least in one operating mode, to a transmission element which is mounted on the gear housing and is axially displaceable on the gear housing in a screwing position assigned to the screwing mode and is axially fixed on the gear housing in impact drilling and drilling positions assigned to the impact drilling and drilling modes. The actuating element and the setting element are formed as one piece from plastic. 1. A hand-held power tool , comprising:a gear for driving an output shaft, which is situated in an assigned gear housing;a mode-setting unit for setting an operating mode for an impact drilling mode, a drilling mode, and a screwing mode, the mode-setting unit including a rotatable actuating element and a rotatable setting element coupled to the rotatable actuating element, one of the operating modes being settable by way of a rotation of the setting element, which is effectuatable via a rotation of the actuating element, and the setting element being coupled, at least in one operating mode, to a transmission element which is mounted on the gear housing and is axially displaceable on the gear housing in a screwing position assigned to the screwing mode and is axially fixed on the gear housing in impact drilling position and drilling position assigned to the impact drilling mode and the drilling mode;wherein the actuating element and the setting element are formed as one piece from plastic and are supported in the axial direction of the output shaft on a side of the gear housing facing a free end of the output shaft.2. The hand-held power tool as ...

BORING MACHINE, BORING MACHINE SYSTEM, AND USE OF A BORING MACHINE

The invention relates to a boring machine comprising a spindle () which is designed for rotationally driving a boring tool that is placed or can be placed on the spindle and which is paired together with rotational drive means that interact with a first drive motor () for rotational driving purposes and with adjustment drive means that interact with a second drive motor () for axially adjusting the spindle such that when the spindle is being rotated by the first drive motor, the spindle can be axially adjusted under the effect of the second drive motor. The rotational drive means have a rotational drive gear () which is connected to the spindle, and the adjustment drive means have an adjustment nut () which interacts with a threaded section () of the spindle () in the manner of a slide. Transmission means are integrated in the form of a transmission module for interacting with the rotational drive gear and the adjustment nut and are designed to connect to the first and the second drive motor. The transmission means have an adjustment gear () for meshing into a toothing of the adjustment nut (), said adjustment gear being driven by a toothed gear assembly () which engages onto an outer toothing () of the adjustment gear such that at least one first toothed gear (-) of the toothed gear assembly receives a drive torque of the second drive motor, in particular the at least one first toothed gear interacts directly with a drive shaft () of the second drive motor (A), and at least one second toothed gear (--) of the toothed gear assembly transmits a drive torque of the first toothed gear () to the outer toothing (), in particular the at least one second toothed gear meshes directly with the first toothed gear and the outer toothing. The toothed gear assembly is held in a cage-like toothed gear support () such that at least the second toothed gear, preferably the first and the second toothed gear, can be released from the transmission module and replaced when disassembling ...

A DRILL FOR DRILLING RAILWAY SLEEPERS

A drill () for drilling railway sleepers comprises a support structure (), a motor unit () supported by the support structure (), a handle () connected to the support structure (), at least one control member () arranged at the handle () for actuating the motor (), a spindle () supported by the support structure () and operable by the motor (), to rotate about a spindle axis (), wherein a drilling tip () can be coupled to said spindle, a protective casing () connected to the support structure () and sliding in the direction of the spindle axis () between an axially protracted position, in which it envelops the tip () and an axially retracted position, in which the tip () protrudes from the protective casing (), wherein the handle () comprises two gripping portions (), for the user's two hands, situated on two diametrically opposite sides of the drill () with respect to the spindle axis (), and the motor unit () comprises an electric motor which can be powered by means of a rechargeable and replaceable battery (). 1. A drill for drilling railway sleepers , comprising:a support structure,a motor assembly supported by the support structure,a handle connected to the support structure,at least one control member arranged on the handle for operating the motor,a spindle supported by the support structure and operable by the motor to rotate about a spindle axis, wherein a drilling tip can be coupled to said spindle,a protective casing connected to the support structure and surrounding both the spindle and said drilling tip, said protective casing comprising a movable casing portion sliding in the direction of the spindle axis between an axially protracted position, in which it envelops the tip, and an axially retracted position, in which the tip protrudes out from the protective casing,wherein:the handle comprises two gripping portions for the two hands of the user, located on two diametrically opposite sides of the drill with respect to the spindle axis, andthe motor ...

TOOL

A tool includes a switch and a handle. The switch is configured to cause an electric component to operate. The handle is held by a hand to manipulate the switch. The switch includes a switch manipulation part to be manipulated, and a load sensor. The load sensor is configured to receive a pressing force through the switch manipulation part. The load sensor includes a pressure-sensitive conductive elastic member in which conductive particles are dispersed in a non-conductive elastic material. 1. A tool comprising:a switch that is configured to cause an electric component to operate; anda handle that is held by a hand to manipulate the switch, a switch manipulation part to be manipulated; and', 'a load sensor that is configured to receive a pressing force through the switch manipulation part, and, 'wherein the switch includeswherein the load sensor includes a pressure-sensitive conductive elastic member in which conductive particles are dispersed in a non-conductive elastic material.2. The tool according to claim 1 , further comprising:a control unit that is configured to control the electric component; anda control circuit that is configured to supply power to the control unit,wherein the load sensor is configured to cause the control circuit to operate, when a load is applied to the load sensor by the manipulation of the switch manipulation part, andwherein the control unit is configured to control the electric component according to change of the load applied to the load sensor.3. The tool according to claim 1 ,wherein the load sensor is in a non-conduction state in a state where no load is applied to the switch manipulation part.4. The tool according to claim 1 ,wherein a resistance value of the load sensor is infinite in a state where no load is applied to the switch manipulation part.5. The tool according to claim 1 ,wherein a resistance value of the load sensor is reduced as the load increases.6. The tool according to claim 1 ,wherein the switch manipulation ...

TOOL

A tool includes a switch and a controller. The switch is configured to cause an electric component to operate. The switch includes a switch manipulation part and a load sensor. The switch manipulation part is configured to manipulate the switch. The load sensor is configured to detect a load corresponding to a pressing force according to a manipulation of the switch manipulation part. The controller is configured to correct an output corresponding to the load detected by the load sensor. The switch is configured to cause the electric component to operate based on the output corrected by the controller. 1. A tool comprising:a switch that is configured to cause an electric component to operate; anda controller, a switch manipulation part that is configured to manipulate the switch; and', 'a load sensor that is configured to detect a load corresponding to a pressing force according to a manipulation of the switch manipulation part, and, 'wherein the switch includeswherein the controller is configured to correct an output corresponding to the load detected by the load sensor, andwherein the switch is configured to cause the electric component to operate based on the output corrected by the controller.2. The tool according to claim 1 , whereinthe controller is configured to correct the output of the load sensor based on comparison between the output of the load sensor in a predetermined load and a reference value.3. The tool according to claim 2 , whereinthe controller is configured to correct the output of the load sensor based on a load in a case where an output waveform amplitude of the load sensor in the predetermined load is a threshold value or less than the threshold value.4. The tool according to claim 2 , further comprising:a load adjusting mechanism that is configured to apply the predetermined load to the load sensor.5. The tool according to claim 4 , whereinthe load adjusting mechanism includes an elastic member which is elastically deformed when a prescribed ...

Positive Feed Tool with a Modular Architecture

Positive feed tools that include gear heads configured to be driven by a motor. The gear heads further include a pneumatic manifold that provides for access to input/output signals to add on additional components that include additional air logic functionality. The gear head includes first and second interface positions. Each interface is configured to receive either the motor for powering the gear head or an add-on component to provide additional functionality to the tool. 1. A gear head for a positive feed tool that is configured for engagement with a motor and an add-on component , the gear head including:a spindle having an elongated shape and configured to move in advance and retract directions along a feed path;a plurality of gears configured to be driven to rotate the spindle and move the spindle along the feed path;an air manifold;first and second manifold interfaces each in communication with the air manifold and including a common number and arrangement of ports to receive either the motor or the add-on component.2. The gear head of claim 1 , wherein the first manifold interface is aligned perpendicular to the second manifold interface.3. The gear head of claim 1 , further comprising a separate input spaced away from each of the first and second manifold interfaces to receive air from an outside source claim 1 , the input being in communication with the air manifold.4. The gear head of claim 1 , wherein the plurality of gears are operated based on signals received through one of the first and second manifold interfaces.5. The gear head of claim 1 , wherein the gear head includes logic to control motor start claim 1 , spindle advance claim 1 , spindle retract claim 1 , and motor stop.6. The gear head of claim 5 , wherein the first and second manifold interfaces are configured to receive signals to operate a pneumatic clamp.7. The gear head of claim 5 , wherein the first and second manifold interfaces are configured to receive signals to activate a counter.8 ...

ELECTRIC POWER TOOL WITH VIBRATION MECHANISM

An electric power tool includes a housing, a motor, a deceleration mechanism, a final output shaft, a vibration mechanism, a vibration switching member, a stop member, and an expansion prevention portion. The vibration mechanism provides a vibration in an axial direction to the final output shaft. The vibration switching member is accommodated in a slit axially disposed on a front end of a tubular portion and moved back and forth in the slit by an operation from outside to switch on and off actuation of the vibration mechanism. The stop member is installed on the front end of the tubular portion to cover the slit. The expansion prevention portion is disposed on the stop member and is brought in contact with an outer periphery of the front end of the tubular portion to prevent the front end of the tubular portion from expanding, 1. An electric power tool with vibration mechanism comprising:a housing;a motor housed in the housing;a deceleration mechanism to which a rotation of the motor is transmitted, the deceleration mechanism being housed in a gear case;a final output shaft to which the rotation is transmitted from the deceleration mechanism, the final output shaft being held in a tubular portion via a bearing, the tubular portion being disposed on a front end of the gear case, and the final output shaft projecting forward;a vibration mechanism disposed in the tubular portion, the vibration mechanism being configured to provide a vibration in an axial direction to the final output shaft;a vibration switching member housed in a slit, the slit being axially disposed on a front end of the tubular portion, the vibration switching member being moved back and forth in the slit by an operation from outside to switch on and off actuation of the vibration mechanism;a stop member installed on the front end of the tubular portion to cover the slit; andan expansion prevention portion disposed on the stop member, the expansion prevention portion being brought in contact with an ...

POWER TOOL

A power tool, including an output member, a motor, a housing, a transmission device, and a shifting device. The shifting device includes a first shifting element, a second shifting element, an operation member, and a connecting member. The first shifting element is capable of switching between a first position and a second position, and the second shifting element is capable of switching between a third position and a fourth position. When sliding relative to the housing, the operation member drives the first shifting element to switch between the first position and the second position, and a position of the second shifting element remains unchanged. When the operation member rotates relative to the housing, the connecting member drives the second shifting element to switch between the third position and the fourth position, and a position of the first shifting element remains unchanged. 1. A power tool , comprising:an output member configured to output power;a motor configured to drive the output member;a housing configured to accommodate the motor;a transmission device configured to transmit power between the motor and the output member and having at least four transmission states in which the output member is capable of outputting different power; anda shifting device configured to drive the transmission device to switch between different ones of the at least four transmission states; a first shifting element capable of switching between at least a first position and a second position in which the transmission device is in respective first and second ones of the at least four transmission states;', 'a second shifting element capable of switching between at least a third position and a fourth position in which the transmission device is in respective third and fourth ones of the at least four transmission states;', 'an operation member operated by a user, wherein the operation member can slide relative to the housing in a first straight line and rotate relative to ...

AUXILIARY HANDLE AND POWER TOOL HAVING THE SAME

An auxiliary handle () comprises a first clamp member (), a second clamp member (), an operation rod () and a grip (). By rotation of the operation rod (), the first clamp member () is moved toward a distal end of the operation rod (), and at the same time, the second clamp member () is moved toward a base end of the operation rod (). Accordingly, the first clamp member () and the second clamp member () are moved to be close to each other. As a result, an auxiliary handle attachable part () of a screw driver () is clamped by the first clamp member () and the second clamp member (), and thereby the auxiliary handle () is attached to the screw driver (). 1. An auxiliary handle which is detachably attached to a main body of a power tool having a main handle , comprising:a grip portion which is held by a user,a first clamp member having a first clamp part,a second clamp member having a second clamp part, anda singular operation member which is operated by a user and moves the first clamp member and the second clamp member,wherein the first clamp member and the second clamp member are respectively moved at the same time to be close to each other by an attaching operation of the operation member operated by a user, and the first clamp part and the second clamp part clamp the main body of the power tool, and the auxiliary handle is attached to the main body by the first clamp member and the second clamp member.2. The auxiliary handle according to claim 1 , wherein the operation member is formed as an elongate member claim 1 , and a clamp member holding part which holds the first clamp member and the second clamp member is provided on one end of the operation member claim 1 , and the grip portion is provided on another end of the operation member claim 1 ,and wherein the clamp member holding part includes a first screw part on which a left screw thread is formed and a second screw part on which a right screw thread is formed, the first clamp member having a third screw part ...

ELECTRIC POWER TOOL

An electric power tool includes a motor having a drive shaft, a tool output shaft rotated by rotational force of the drive shaft, a clutch unit that connects or disconnects a torque transmission line between the drive shaft and the tool output shaft according to load torque of the tool output shaft, a load detector that outputs a load torque signal in accordance with the load torque of the tool output shaft, and a control unit that performs a rising detection mode, which detects rising of the load torque signal to stop rotation of the motor, and a falling detection mode, which detects falling of the load torque signal to stop rotation of the motor. The control unit selects the rising detection mode or the falling detection mode according to a usage condition signal indicating a usage condition of the electric power tool. 1. An electric power tool comprising:a motor including a drive shaft;a tool output shaft arranged to be rotated by rotational force of the drive shaft;a clutch unit configured to connect or disconnect a torque transmission line between the drive shaft and the tool output shaft in accordance with a load torque of the tool output shaft;a load detector configured to output a load torque signal in accordance with the load torque of the tool output shaft; anda control unit capable of performing a rising detection mode, which stops rotation of the motor when detecting a rising in the load torque signal, and a falling detection mode, which stops rotation of the motor when detecting a falling in the load torque signal,wherein the control unit is configured to select the rising detection mode or the falling detection mode based on a usage condition signal indicating a usage condition of the electric power tool.2. The electric power tool according to claim 1 , further comprising:a condition setting operation unit serving as a human-machine interface; anda condition setting detector configured to output a signal corresponding to the operation of the condition ...

PORTABLE POWER TOOL

A portable power tool is disclosed. The tool has a tool holder, a motor, a switchable gear stage, and a slider. The gear stage has a gear element movable in a switching direction with a toothing, which in a first gear position is engaged with a corresponding toothing and in a second gear position is disengaged. The slider is displaceable between first and second switch positions where the first switch position is allocated to the first gear position and the second switch position is allocated to the second gear position. A coupling device has a carriage movable in the switching direction and a catch. The carriage is connected to the gear element and the catch is latched in the first and second gear positions. A spring element has springy first and second sections. The slider has a finger that is arranged along the switching axis between the sections. 19.-. (canceled)10. A portable power tool , comprising:a tool holder;a motor;a switchable gear stage which couples the motor to the tool holder, wherein the switchable gear stage includes a gear element that is movable in a switching direction with a first toothing, which in a first gear position is engaged with a corresponding second toothing and which in a second gear position is disengaged from the corresponding second toothing;a finger attached to a slider, wherein the slider is displaceable by a user between a first switch position and a second switch position in the switching direction, wherein the first switch position is assigned to the first gear position and the second switch position is assigned to the second gear position;a coupling device which has a carriage that is movable in the switching direction and a catch, wherein the carriage is connected to the gear element and wherein the catch latches in the first gear position and the second gear position and does not latch in positions between the first gear position and the second gear position; anda spring element which includes a springy first section and a ...

Power Tool Device

A machine tool device includes at least one drive train unit including at least one gear shift element and which has at least two different rotational direction modes and at least two different speed modes, and with at least one switching unit arranged at least partially on the drive train unit. The switching unit comprises at least one actuating element, which is configured to select the rotational direction modes and the speed modes, and at least one switching element, which is configured to switch between the modes of rotation depending on a switching position of the actuating element. 1. A power tool device , comprising:at least one drive train unit comprising at least one gear shift element, the at least one drive train unit having at least two different direction-of-rotation modes and at least two different speed modes; andat least one switching unit arranged at least partially on the at least one drive train unit, the at least one switching unit comprising (i) at least one actuation element configured for selection of the at least two different direction-of-rotation modes and the at least two different speed modes, and (ii) at least one switching element configured to switch between the at least two different direction-of-rotation modes in dependence on a switching position of the at least one actuation element.2. The power tool device as claimed in claim 1 , wherein the at least one switching unit comprises at least one activation element assigned to the at least one actuation element and configured to actuate the at least one switching element to sense the switching position of the at least one actuation element.3. The power tool device as claimed in claim 2 , wherein the at least one activation element is configured for mechanical actuation of the at least one switching element.4. The power tool device as claimed in claim 1 , wherein the at least one activation element is configured for contactless actuation of the at least one switching element.5. The ...

COUNTERBALANCE SYSTEM FOR UPPER HORIZONTAL SURFACE DRILLING OPERATIONS

A counterbalance system employs one or more springs to support a large motor drill on an upper horizontal work surface, for example on the tops of drill jigs or bushings. The counterbalance system supports the drill above the work surface where the counterbalance system can slide across the work surface to selectively position the drill over a drill bushing through which a drilling operation is to be performed. A user of the drill supported on the counterbalance system can then push downwardly on the drill to compress the spring and perform a drilling operation. On removal of the downward directed force exerted by the user of the drill, the spring pushes the drill upwardly to disengage the drill from the work surface. The user of the counterbalance system can then slide the counterbalance system and the drill across the top of the work surface. 1. A counterbalance apparatus for cutting operations on a horizontally oriented surface , the apparatus comprising:a base plate, the base plate having a bottom surface that is flat, the bottom surface being configured to be oriented horizontally when the bottom surface is positioned on a separate work surface that is oriented horizontally;a central hole through the base plate, the central hole being configured to accommodate a locking nose of a locking power feed drill motor and a cutting bit of the locking power feed drill motor through the central hole;a top surface on the base plate, the top surface extending around the central hole;a spring on the top surface of the base plate, the spring extending upwardly from the top surface to a top end of the spring, the spring being moveable between a not compressed position of the spring relative to the top surface where the spring extends a first distance from the top surface and a compressed position of the spring where the spring extends a second distance from the top surface, the second distance being smaller than the first distance; and,a body on the top end of the spring, the ...

IMPACT TOOL

An impact tool includes a housing having a motor housing portion and an impact housing portion. The impact housing portion has a front end defining a front end plane. An electric motor is supported in the motor housing, a battery pack is supported by the housing for providing power to the motor, and a drive assembly is supported by the impact housing portion. The drive assembly includes an anvil extending from the front end of the front housing portion with an end defining an anvil end plane. The drive assembly also includes a hammer rotationally and axially movable relative to the anvil for imparting the consecutive rotational impacts upon the anvil, and a spring for biasing the hammer in an axial direction toward the anvil. A distance between the front end plane and the anvil end plane is greater than or equal to 6 inches. 1. An impact tool comprising:a housing including a motor housing portion and an impact housing portion, the impact housing portion having a front end defining a front-end plane;an electric motor supported in the motor housing and defining a motor axis;a battery pack supported by the housing for providing power to the motor; and an anvil extending from the front end of the impact housing portion, the anvil having an end defining an anvil end plane,', 'a hammer that is both rotationally and axially movable relative to the anvil for imparting the consecutive rotational impacts upon the anvil, and', 'a spring for biasing the hammer in an axial direction toward the anvil,, 'a drive assembly supported by the impact housing portion, the drive assembly configured to convert a continuous rotational input from the motor to consecutive rotational impacts upon a workpiece, the drive assembly including'}wherein a distance between the front-end plane and the anvil end plane is greater than or equal to 6 inches.2. The impact tool of claim 1 , wherein the impact housing portion includes a front portion extending rearward from the front end and a rear portion ...

MULTISPEED POWER TOOL

A tool with a transmission assembly having a reduction gearset and a speed selector. The speed selector has a member, an actuator and a shifter assembly. The member is movable between a first position, in which the member is non-rotatable, and a second position in which the member is coupled to a planet carrier of the reduction gearset for common rotation. The actuator includes a pivoting yoke and a follower that is coupled to the yoke. The follower engages the member so as to be axially movable with the follower. The shifter assembly has a selector switch, a switch fork, and a pair of springs. The selector switch is slidable between a first switch position and a second switch position. The shift fork is slidably coupled to the selector switch and receives the yoke. The springs cooperate to bias the shift fork relative to the selector switch into a neutral position. 1. A tool comprising:a housing assembly defining a handle;a motor housed in the housing;a transmission assembly received in the housing assembly, the transmission assembly having a reduction gearset;the transmission assembly further including a locking member including a plurality of locking projections, the locking member including a circular hole;wherein the reduction gearset has a first ring gear and is selectively operable in a first overall gear ratio and a second overall gear ratio;wherein the transmission assembly further includes a movable member, the movable member including locking teeth; andwherein the movable member in the transmission assembly non-rotatably engages the locking member when the transmission assembly is operated in the first overall gear ratio through engagement of the movable member locking teeth with the locking projections and wherein the movable member locking teeth and the locking projections are disengaged when the transmission assembly is operated in the second overall gear ratio so as to allow rotation of the movable member relative to the locking member; andwherein the ...

SPEED-CHANGING TOOL

The present invention discloses a speed changing tool, comprising: a housing; a motor, disposed in the housing and outputting rotary power; a trigger switch, used for starting and stopping the motor; an output shaft; a gear transmission, which is disposed between the motor and the output shaft to transmit rotation of the motor to the output shaft, and comprises at least one group of gear system, a gear ring meshed with the gear system and a moving member, wherein the moving member can be moved between a first position and a second position and when in the first position and the second position, the moving member has different states relative to the housing, such that the gear transmission outputs a rotary speed of the motor with different speed reduction ratios; the variable speed tool further comprises a drive mechanism for driving the moving member to move between two positions, when a load of the output shaft reaches or exceeds a preset value, the drive mechanism can drive the moving member to move to the second position from the first position, the trigger switch can push the drive mechanism to drive the moving member to move to the first position from the second position when the trigger switch comes back from a work position to an original position. 1. A speed changing tool , comprising:{'b': '10', 'a housing ();'}{'b': 20', '10, 'a motor () being disposed in the housing () for outputting a rotary force;'}{'b': 31', '31', '20', '20, 'a trigger switch (, ′) being movable between a work position to start the motor () and an original position to stop the motor ();'}{'b': '60', 'an output shaft ();'}{'b': 40', '20', '60', '40', '20', '60, 'a gear transmission () being disposed between the motor () and the output shaft (), the gear transmission () is configured to transmit the rotary force of the motor () to the output shaft (), and'}{'b': 40', '42', '44', '46, 'the gear transmission () comprises at least one group of gear system (, , );'}{'b': 43', '45', '47', '47 ...

DEPTH CONTROLLABLE AND MEASURABLE MEDICAL DRIVER DEVICES AND METHODS OF USE

Disclosed are devices and methods for creating a bore in bone. The devices and methods described involve controlling the drive and measuring the drilling energy of a working tool such that a user can avoid injuries to surrounding structures. 1. A driving device comprising:a housing having a proximal end and a distal end;a motor contained within the housing;a gearbox connecting the motor to a working tool interchangeably connected via a coupler, wherein the motor turns the gearbox, the coupler and the working tool;a torque sensor configured to measure drilling torque at an output of the gearbox and convert the measured drilling torque into a torque measurement signal, wherein the drilling torque is in a direction opposite rotation of the working tool, wherein the gearbox has a gearbox torque in a direction opposite rotation of the working tool, and wherein the gearbox is held as a reference point such that the gearbox torque is excluded from the torque measurement signal;a programmable electronics package programmed to keep constant rotations per minute (RPM) of the motor preventing working tool rotational acceleration or deceleration, and programmed to integrate over time the torque measurement signal from the torque sensor to obtain a measurement of drilling energy of the working tool; anda tool guide assembly coupled to the housing,wherein upon actuation, axial motion of the tool guide assembly towards the proximal end of the housing to a retracted state allows a length of the working tool to be driven into a target region of work.2. The device of claim 1 , wherein the tool guide assembly comprises:a tool guide configured to surround at least a portion of the working tool; anda surface guide having a proximal region and a distal region, the distal region configured to couple to the tool guide and the proximal region configured to couple to the housing.3. The device of claim 1 , wherein a change in the drilling energy corresponds to a change in material strength ...

PORTABLE HANDHELD DRILL PRESS

A handheld drill press device includes a spine with a longitudinal section having a geared rack located thereon and a transverse section configured to receive and be coupled to a handheld drill. A carriage frame is slidably coupled to the spine and includes a workpiece connection interface located about the carriage. A gear and a lever handle are both rotatably coupled to the carriage frame wherein the gear is operable to mesh with the geared rack and the lever is configured to provide a torque to the gear and thereby move the carriage frame with respect to the spine. 1. A handheld drill press device , comprising:a spine having a longitudinal section having a geared rack located thereon and a transverse section configured to receive a handheld drill;a carriage frame slidably coupled to the spine having a workpiece connection interface located about the carriage;a gear rotatably coupled to the carriage frame and operable to mesh with the geared rack; anda lever handle configured to provide a torque to the gear and thereby move the carriage frame with respect to the spine.2. The handheld drill press of claim 1 , further comprising a ratcheting mechanism coupled to the lever handle claim 1 , wherein application of a force about the end of the lever handle causes the ratcheting mechanism to engage the gear thus causing the gear to rotate and therefore displace the carriage frame with respect to the spine.3. The handheld drill press of claim 2 , further comprising a ratchet lever for releasing the ratcheting mechanism.4. The handheld drill press of claim 1 , wherein the geared rack is removably coupled to the spine.5. The handheld drill press of claim 1 , wherein the geared rack is formed from claim 1 , and part of claim 1 , the spine.6. The handheld drill press of claim 1 , wherein the workpiece interface is configured to receive a drill bit therethrough.7. The handheld drill press of claim 1 , further comprising one or more roller wheels disposed on the spine.8. The ...

MULTISPEED POWER TOOL

A tool with a transmission assembly having a reduction gearset and a speed selector. The speed selector has a member, an actuator and a shifter assembly. The member is movable between a first position, in which the member is non-rotatable, and a second position in which the member is coupled to a planet carrier of the reduction gearset for common rotation. The actuator includes a pivoting yoke and a follower that is coupled to the yoke. The follower engages the member so as to be axially movable with the follower. The shifter assembly has a selector switch, a switch fork, and a pair of springs. The selector switch is slid able between a first switch position and a second switch position. The switch fork is slidably coupled to the selector switch and receives the yoke. The springs cooperate to bias the switch fork relative to the selector switch into a neutral position.

Electric Tool

An electric tool includes a housing unit which has a grip unit that is angled with respect to a longitudinal direction of the housing unit. The electric tool also includes a drive unit which has a tool receptacle that is drivable about a tool axis by the drive unit, and a pivoting unit which is configured to mount the tool receptacle in a pivotable manner about at least one pivot axis relative to the drive unit. A drive axis of the drive unit is located so as to be at least substantially parallel to a main extent of the grip unit. 1. An electric tool , comprising:a housing unit that includes a grip unit that is angled with respect to a longitudinal direction of the housing unit; wherein the drive unit is configured to drive the tool receptacle about a tool axis; and', 'wherein a drive axis of the drive unit is located so as to be at least substantially parallel to a main extent of the grip unit; and, 'a drive unit that includes a tool receptaclea pivoting unit, wherein the tool receptacle is mounted in the pivoting unit in a pivotable manner about at least one pivot axis relative to the drive unit.2. The electric tool according to claim 1 , further comprising a further grip unit which is spaced apart from the grip unit at least substantially in a direction perpendicular to the drive axis.3. The electric tool according to claim 2 , wherein the drive unit is positioned at least partially in the further grip unit.4. The electric tool according to claim 1 , wherein the grip unit has a receptacle region configured to receive a portable power tool rechargeable battery.5. The electric tool according to claim 1 , wherein the pivoting unit has at least one angular transmission.6. The electric tool according to claim 1 , wherein the at least one pivot axis is located at least substantially parallel to the drive axis.7. The electric tool according to claim 1 , wherein the at least one pivot axis is located in an at least substantially axial manner with respect to the drive ...

SPINDLE LOCK ASSEMBLY FOR POWER TOOL

A spindle lock assembly () for a power tool () includes a first rotatable part () fixedly connected to an output member () of a power tool transmission (), and a second rotatable part () fixedly connected to the power tool output spindle () and operatively engaging the first rotatable part. A lock ring () surrounds the first and second rotatable parts. The lock ring being is retained in the housing in a substantially stationary manner with a dampener () disposed between the lock ring and the power tool housing () and to dampen movements of the lock ring relative to the housing in a rotational direction. The spindle lock assembly transmits rotary motion from the transmission output member to the output spindle when the rotary output member is being driven by the motor and inhibits transmittal of rotary motion from the output spindle to the transmission output member when the output spindle is driven by an external force. 1. A power tool comprising:a housing assembly;a motor received in the housing assembly;an output spindle;a transmission configured to transmit rotary power between the motor and the output spindle, the transmission including a rotatable output member;a spindle lock assembly configured to transmit rotary motion from the rotatable output member to the output spindle when the rotary output member is being driven by the motor and configured to inhibit transmittal of rotary motion from the output spindle to the rotary output member when the output spindle is being driven by an external force, the spindle lock assembly including a first rotatable part fixedly connected to the output member, a second rotatable part fixedly connected to the output member and operatively engaging with the first rotatable part, and a lock ring surrounding the first rotatable part and the second rotatable part,wherein the lock ring is retained to the housing in a substantially stationary manner with at least one dampener disposed between the lock ring and the housing and ...

TOOL MOUNTING APPARATUS

A tool mounting apparatus for a leverage force to a tool, the apparatus comprising: a frame; a frame support for supporting said frame to a workpiece acted on by said tool; a lever pivotally connected to said frame; an attachment mechanism for securing said tool to said lever; and whereby a force is applied to said lever to cause said to advance towards said workpiece and act on said workpiece. 1. A tool mounting apparatus for a leverage force to a tool , the apparatus comprising:a frame;a frame support for supporting said frame to a workpiece acted on by said tool;a lever pivotally connected to said frame;an attachment mechanism for securing said tool to said lever;whereby a force is applied to said lever to cause said to advance towards said workpiece and act on said workpiece; andwhereby said lever provides a mechanical advantage when said force is applied.2. The tool mounting apparatus of claim 1 , wherein said frame comprises a vertical arm and a horizontal arm substantially perpendicular to each other.3. The tool mounting apparatus of claim 2 , wherein said frame support comprises an upper support member adjacent to one end of said vertical arm and a lower support member adjacent to another end of said vertical arm.4. The tool mounting apparatus of claim 3 , wherein said frame support further comprises a fastener for securing said frame to said workpiece.5. The tool mounting apparatus of claim 4 , wherein said a fastener is one of a clamp claim 4 , strap claim 4 , line claim 4 , cable claim 4 , chain-link claim 4 , and nut and bolt.6. The tool mounting apparatus of claim 4 , wherein said frame comprises a diagonal brace member having an upper end secured to said one end of said vertical member and secured to said horizontal arm about a midpoint of said diagonal brace member claim 4 , with a portion of said diagonal brace member extending beyond said horizontal arm.7. The tool mounting apparatus of claim 6 , wherein said portion of said diagonal brace member ...

HAND-HELD TOOL MACHINE HAVING A SWITCHABLE MECHANISM

A hand-held tool machine has a switchable mechanism having at least two operating positions, which are able to be selected via an adjustable operating element, the operating element being coupled to an adjustable switching element via a coupling element. The coupling element is implemented as bistable coupling spring. 117-. (canceled)18. A hand-held tool machine , comprising:a switchable mechanism having at least a first operating position and a second operating position;a coupling element implemented as a bistable coupling spring; andan operating element coupled to the switchable mechanism via the coupling element, wherein the coupling element is configured to act on at least one mechanical component of the switchable mechanism such that the switchable mechanism is adjusted between the first operating position and the second operating position in response to a positioning movement of the operating element;wherein the bistable coupling spring is configured to assume a stable position in a first switching position and a second switching position of the operating element, and assume an unstable position in an intermediate position between the first and second switching positions of the operating element,wherein the bistable coupling spring is implemented as a spring washer and is positioned in the hand-held tool machine under prestressing,wherein elements, which at least one of tilt and pivot, are formed integrally with the spring washer to define an axis running substantially perpendicular to a longitudinal axis of the hand-held tool machine, andwherein the spring washer assumes a non-planar form under prestressing in the first and second switching position.19. The hand-held tool machine as recited in claim 18 , wherein the spring washer has a semicircular shape.20. The hand-held tool machine as recited in claim 18 , wherein the spring washer is configured as a full circle.21. The hand-held tool machine as recited in claim 20 , wherein the spring washer has an ...

POWER DRILL

A power drill has a rotatable spindle extending from a power-unit housing, a chuck body rotationally fixed to the spindle, a jaw guide carried on the chuck body and rotatable relative thereto about the axis, jaws carried in the chuck body, and a pusher element rotatable about the axis in the chuck body and fixed to and bearing axially on the jaws. Screwthreads between the pusher element and the spindle is effective to move the jaws radially on rotation of the spindle about the axis relative to the guide. A coupling sleeve rotationally fixed to the jaw guide is movable between a tightening position rotationally fixed to the housing for movement of the jaws by the pusher element on rotation of the spindle and a drilling position rotationally fixed to the spindle and rotatable relative to the guide for joint rotation of the guide, jaws, and spindle. 1. A power drill comprising:a power-unit housing;a drill spindle extending from the housing and rotatable about and centered on an axis;a chuck body rotationally fixed to the drill spindle;a jaw guide carried on the chuck body and rotatable relative thereto about the axis;jaws carried in the chuck body;a pusher element rotatable about the axis in the chuck body and fixed to and bearing axially on the jaws;screwthreads between the pusher element and the drill spindle effective to move the jaws radially together on rotation of the spindle about the axis in a tightening direction relative to the guide and radially apart on opposite rotation of the spindle about the axis in a loosening direction;a coupling sleeve rotationally fixed to the jaw guide and movable between a tightening position rotationally fixed to the housing for movement of the jaws by the pusher element on rotation of the spindle and a drilling position rotationally fixed to the spindle and rotatable relative to the guide for joint rotation of the guide, jaws, and spindle.2. The power drill defined in claim 1 , wherein the jaw guide is formed with at least one ...

Hand-Held Tool Gear Mechanism Unit

A hand-held tool gear mechanism unit includes a drive gearwheel, an output gearwheel, and a connecting unit. The output gearwheel has a rotational axis spaced apart radially from a rotational axis of the drive gearwheel. The connecting unit is configured to transmit a rotational movement from the drive gearwheel to the output gearwheel substantially without a step-up transmission ratio. The connecting unit is configured to couple the drive gearwheel and the output gearwheel such that they can be moved relative to one another about a pivot axis. 1. A hand-held tool gear mechanism unit , comprising:a drive gearwheel;an output gearwheel having a rotational axis spaced apart radially from a rotational axis of the drive gearwheel; anda connecting unit configured to transmit a rotational movement from the drive gearwheel to the output gearwheel substantially without a step-up transmission ratio,wherein the connecting unit couples the drive gearwheel and the output gearwheel in such a way that the drive gearwheel and the output gearwheel are pivotable relative to one another about a pivot axis.2. The hand-held tool gear mechanism unit according to claim 1 , further comprising:a pivoting housing in which the output gearwheel is mounted, the pivoting housing being mounted pivotably on the connecting unit.3. The hand-held tool gear mechanism unit according to claim 1 , wherein the pivot axis is oriented perpendicularly with respect to the rotational axis of the drive gearwheel.4. The hand-held tool gear mechanism unit according to claim 1 , wherein the connecting unit has at least one gearwheel configured as a bevel gearwheel.5. The hand-held tool gear mechanism unit according to claim 1 , wherein the connecting unit has two gearwheels arranged separately from one another.6. The hand-held tool gear mechanism unit according to claim 5 , wherein the gearwheels of the connecting unit are arranged between the rotational axis of the drive gearwheel and the rotational axis of the ...

SCREW DRIVING TOOL

A screw driving includes a housing, a motor, a spindle, a locator, a first detecting mechanism and a controller. The locator is mounted on a front end portion of the housing so as to be movable in a front-rear direction relative to the housing and configured to define a depth to which a screw is driven into a workpiece. The first detecting mechanism is configured to detect a position of the locator in the front-rear direction. The controller is configured to control driving of the motor. Rotational driving of the spindle in a forward direction is started in response to the spindle being pressed rearward, and the rotational driving of the spindle in the forward direction is stopped when the first detecting mechanism detects that the locator is disposed in a specified position rearward of a most forward position within a moving range of the locator. 1. A screw driving tool configured to drive a screw into a workpiece with a tool accessory , the screw driving tool comprising:a housing extending in a front-rear direction of the screw driving tool;a motor housed in the housing;a spindle formed as an elongate member extending in the front-rear direction along a drive axis and supported by the housing so as to be rotatable around the drive axis, the spindle having a front end portion configured to detachably hold the tool accessory, the spindle being configured to be rotationally driven at least in a forward direction by power transmitted from the motor, the forward direction corresponding to a direction of tightening the screw with the tool accessory;a locator mounted on a front end portion of the housing so as to be movable in the front-rear direction relative to the housing, the locator being configured to define a depth to which the screw is driven into the workpiece;a first detecting mechanism configured to detect a position of the locator in the front-rear direction; anda controller configured to control driving of the motor,wherein:rotational driving of the spindle ...

POWER TOOL

It is an object to provide a novel technique for releasing an intervening member of a driving member. A representative screwdriver is provided with a motor and a driving mechanism. The driving mechanism has a spindle, a lock sleeve, rollers, a driving gear, a retainer and a spring receiver. When driven with the rollers held between the lock sleeve and the driving gear, the spindle is rotated in a normal direction. The lock sleeve has an inclined part and the retainer has an inclined part. The lock sleeve and the retainer move with respect to each other in the axial direction and the circumferential direction by sliding contact between the inclined parts. This relative movement in the circumferential direction is utilized to release the holding of the rollers. 1. A power tool which performs a prescribed operation by rotationally driving a tool accessory detachably coupled to a front end region of the power tool comprising:a motor, a rotation preventing mechanism that engages the driving shaft to prevent the rotation of the driving shaft,', 'wherein the driving shaft moves between a first position and a second position with respect to the axial direction of the driving shaft in which the first position is a position in the vicinity of the front end region of the driving shaft while the second position is a position remote from the front end region away over the first position,', 'wherein the rotation preventing mechanism includes a movable member that moves between an engaging position and an engaging unable position with respect to the driving shaft,', 'wherein in a state that the driving shaft is at the first position, the movable member at the engaging position engages with the driving shaft to prevent the driving shaft from rotating in the normal direction and the movable member at the engaging unable position allows the driving shaft to rotate in the reverse direction,, 'a driving shaft driven by the motor in a normal direction and a reverse direction, in which ...

CONTROL METHOD FOR A POWER TOOL

A control method for a power tool for rotary tools provides the following: A tool holder is rotated continuously in a forward direction about a working axis by a rotary drive when an operating switch is actuated. The continuous rotation in the forward direction is interrupted by a protective process when a protective device senses blocking of the tool holder. During the protective process, one or more cycles are executed, in which the rotary drive is actuated successively in accordance with an unimpeded rotary movement in a reverse direction and in accordance with an unimpeded rotary movement in the forward direction. The rotary drive is supplied with a first amount of energy for the rotary movement in the reverse direction and with a second amount of energy for the rotary movement in the forward direction. The first amount of energy is smaller than the second amount of energy. 1. A control method for a power tool for rotary tools , comprising:continuously rotating a tool holder in a forward direction about a working axis by a rotary drive in response to an actuation of an operating switch;interrupting the continuous rotation in the forward direction by a protective process when a protective device detects blocking of the tool holder,wherein the protective process comprises executing one or more cycles in which the rotary drive is actuated successively according to a rotary motion in a reverse direction and according to a rotary motion in the forward direction; and,supplying the rotary drive with a first amount of energy for the rotary motion in the reverse direction, and with a second amount of energy for the rotary motion in the forward direction, wherein the first amount of energy is smaller than the second amount of energy.2. The control method according to claim 1 , wherein the first amount of energy is between 75% and 95% of the second amount of energy.3. The control method according to claim 1 , wherein claim 1 , during the protective process claim 1 , a ...

ELECTRIC POWER TOOL

An electric power tool may include a three-phase brushless motor configured to drive a tool, a gear reducer provided between the motor and the tool. The gear reducer is configured to selectively change a reduction ratio from the motor to the tool between a first reduction ratio and a second reduction ratio. The electric power tool may further include a motor controller configured to drive the motor with rectangular waves. The motor controller is configured to selectively change a conduction angle of each rectangular wave between at least a first conduction angle and a second conduction angle. 1. An electric power tool comprising:a three-phase brushless motor configured to drive a tool;a gear reducer provided between the motor and the tool, the gear reducer being configured to selectively change a reduction ratio from the motor to the tool between a first reduction ratio and a second reduction ratio; anda motor controller configured to drive the motor with rectangular waves, the motor controller being configured to selectively change a conduction angle of each rectangular wave between at least a first conduction angle and a second conduction angle.2. The electric power tool according to claim 1 , wherein the motor controller is configured to selectively perform a first drive mode in which the conduction angle is maintained at a fixed conduction angle and a second drive mode in which the conduction angle is selectively changed between at least the first conduction angle and the second conduction angle.3. The electric power tool according to claim 2 , further comprising:at least one manipulation member configured to be manipulated by a user,wherein the motor controller is configured to selectively perform either the first drive mode or the second drive mode in accordance with manipulation applied to the at least one manipulation member.4. The electric power tool according to claim 3 , whereinthe at least one manipulation member comprises a first manipulation member for ...

COMBINATION TOOL

A multipurpose tool is provided. The tool including a housing having a first end and an opposing second end. A hammer portion extending from the first end, the hammer portion having at least one surface configured to strike a fastener in operation. The tool further includes a drill portion slidably disposed within the housing, the drill portion including a chuck configured to receive a drill, the chuck being positioned within the housing when in a first position and at least partially extending from the second end when in a second position. 1. A tool comprising:a housing having a first end and an opposing second end;a hammer portion extending from the first end, the hammer portion having at least one surface configured to strike a fastener in operation; anda drill portion slidably disposed within the housing, the drill portion including a chuck configured to receive a drill, the chuck being positioned within the housing when in a first position and at least partially extending from the second end when in a second position.2. The tool of wherein the drill portion further comprises an actuator extending through a slot in the housing claim 1 , the drill portion moving from the first position to the second position in response to a user sliding the actuator within the slot.3. The tool of wherein the drill portion further comprises:a switch;an energy source electrically coupled to the switch; anda motor electrically coupled to the switch opposite the energy source;wherein the drill portion is configured to actuate the switch when the drill portion is moved from a first position to a second position.4. The tool of wherein the drill portion further comprises a gearbox coupled between the motor and the chuck.5. The tool of wherein the hammer portion consists of a head and a shaft claim 4 , the shaft being at least partially disposed within the housing.6. The tool of wherein the actuator is movable in a direction generally perpendicular to a centerline of the housing claim 2 ...

COMPLIANT SHIFTING MECHANISM AND MULTI-SPEED POWER TOOL HAVING SAME

A multi-directional compliant shifting mechanism for a multi-speed power tool may couple a movable selector to a power transmission system of the tool, for selecting an operational speed of the multi-speed power tool. The complaint shifting mechanism may provide shifting compliance in a first direction in response to movement of the selector in a first direction, and may provide shifting compliance in a second direction in response to movement of the selector in a second direction. In one example, this multi-directional shifting compliance may be provided by interaction of the selector with a camming surface, in combination with a single compression spring. In another example, this multi-directional shifting compliance may be provided by first and second springs, selectively acting to provide compliance in the first and second directions. 1. A multi-directional compliant shifting mechanism for a multi-speed power tool , comprising:a movable selector;a shaft having a first end portion thereof fixedly coupled to the selector;a camming mechanism provided at a second end portion of the shaft;an eccentric pin fixedly coupled to a first end portion of the camming mechanism and configured to cause a transmission of the power tool to shift between at least a first speed and a second speed; anda compression spring positioned between a second end portion of the camming mechanism and the selector, whereinin response to movement of the selector to a first position, interaction of the camming mechanism with the compression spring biases the camming mechanism to provide shifting compliance in a first direction, andin response to movement of the selector to a second position, interaction of the camming mechanism with the compression spring biases the camming mechanism to provide shifting compliance in a second direction opposite the first direction.2. The multi-directional compliant shifting mechanism of claim 1 , wherein the camming mechanism includes:a cam body coupled to the ...

ELECTRIC POWER TOOL AND ELECTRIC VIBRATION DRIVER DRILL

An electric vibration driver drill as one example of an electric power tool includes the gear housing, the vibration mechanism and the clutch mechanism each located inside the gear housing, the mode switching ring (vibration switching ring) configured to operate the vibration mechanism and rotatably held to the gear housing, the clutch ring (clutch switching ring) configured to operate the clutch mechanism and rotatably held to the housing, and the respective balls located between the mode switching ring and the clutch ring. 1. An electric power tool comprising:a housing;a first ring and a second ring each externally mounted to the housing to be rotatable; anda sliding member located between the first ring and the second ring.2. The electric power tool according to claim 1 , whereinthe sliding member includes one or more balls.3. The electric power tool according to claim 2 , whereinat least one of a plate and a washer is interposed between the ball and at least one of the first ring and the second ring.4. The electric power tool according to claim 2 , whereinthe ball is made of steel.5. An electric vibration driver drill comprising:a housing;a vibration mechanism and a clutch mechanism each located inside the housing;a vibration switching ring configured to operate the vibration mechanism, the vibration switching ring being rotatably held to the housing;a clutch switching ring configured to operate the clutch mechanism, the clutch switching ring being rotatably held to the housing; anda sliding member located between the vibration switching ring and the clutch switching ring.6. The electric vibration driver drill according to claim 5 , whereinthe sliding member includes one or more balls.7. The electric vibration driver drill according to claim 6 , whereinat least one of a plate and a washer is interposed between the ball and at least one of the vibration switching ring and the clutch switching ring.8. The electric vibration driver drill according to claim 6 , ...

ERGONOMIC ATTACHMENT FOR AN ANGULAR DRILL ASSEMBLY

A removable attachment assembly for an angular drill assembly, which includes a base member and a securement assembly secured to the base member for releasably securing the base member to a housing of the angular drill assembly. The removable attachment assembly further includes a cushion member associated with the base member. 1. A removable attachment assembly for an angular drill assembly , comprising:a base member;a securement assembly secured to the base member for releasably securing the base member to a housing of the angular drill assembly; anda cushion member associated with the base member.2. The removable attachment assembly of claim 1 , wherein a drill bit of the angular drill assembly extends ninety degrees with respect to the housing.3. The removable attachment assembly of claim 2 , wherein the base member defines a concave surface which faces in a direction away from the cushion member and which extends in a direction along a length of the base member.4. The removable attachment assembly of claim 2 , wherein the base member further defines a first wall portion and a second wall portion which are spaced apart from one another claim 2 , wherein:the first wall portion and the second wall portion each extend in a direction away from the cushion member; andthe first wall portion and the second wall portion each extend in a direction along a length of the base member.5. The removable attachment assembly of claim 4 , further including a third wall portion which connects together the first and second wall portions.6. The removable attachment assembly of claim 5 , wherein the third wall portion extends in a curvilinear direction.7. The removable attachment assembly of claim 2 , wherein the securement assembly comprises a first arm member and a second arm member which extend in a direction away from the cushion member.8. The removable attachment assembly of claim 7 , wherein the first arm member has a first curvilinear configuration and the second arm member ...

Drilling machine, drilling machine system and use of a drilling machine

POWER TOOL AND TWO-SPEED GEAR ASSEMBLY FOR A POWER TOOL

The present specification relates to a power tool comprising an input shaft and an output shaft and a two-speed power transmission comprising a planetary gear and a gear shift assembly for directing torque through or past the planetary gear comprising a driving member, a driven member and an axially movable coupling sleeve arranged to intercouple in a first position the driving member and the driven member and to intercouple in a second position the planetary gear and the driven member. A linear actuator is arranged to displace the coupling sleeve between the first and second position, wherein the linear actuator comprises a linearly movable push bar arranged for displacing the coupling sleeve. The present specification also relates to a method in and a two-speed power transmission for such a power tool. 2. Power tool according to claim 1 , wherein said gear assembly further comprises a coupling assembly arranged between said coupling sleeve and said linear actuator claim 1 , said coupling assembly comprising{'b': '8', 'a first element () rotationally coupled to said sleeve,'}wherein a rotation of said first element is independent of a rotation of said push bar and wherein said push bar is arranged to push said first element in an axial direction.3. Power tool according to claim 2 , wherein said coupling sleeve is concentrically arranged with respect to said planetary gear and wherein said push bar is adapted to engage said first element in a position lying in a center of said sleeve.4. Power tool according to claim 3 , wherein said first element is a ball arranged at least partly in said sleeve.53. Power tool according to any of the preceding claims claim 3 , wherein a first axially acting spring means () is arranged for biasing said coupling sleeve toward said first position of said coupling sleeve.6. Power tool according to any of the preceding claims claim 3 , wherein said first and second position is a first and second end position and wherein said coupling ...

Driving tool with a device for preventing leak of oiling material (variants)

FIELD: driving tools. SUBSTANCE: driving tool contains body, wherein mechanism chamber is positioned, with oiling material injected into internal space of aforementioned chamber; electric motor, mounted in the body, speed changing mechanism, positioned in the mechanism chamber and connected to electric motor for transferring and switching rotary movement, created by electric engine, connection generation unit, positioned in the body, and connecting passage forming element, positioned in connection forming unit for providing connecting passage which connects internal space of chamber of mechanism to space which surrounds the mechanism chamber. Structural element of connecting passage is used to create at least one obstacle, limiting leak of oiling material into space, surrounding the mechanism chamber. EFFECT: prevented leakage of oiling material, increased durability and lasting quality of tool. 2 cl, 8 dwg

Automatic spindle locking mechanism

Electric hand tool with a Klemmgesperre

Elektrohandwerkzeug, insbesondere Bohrmaschine (10), Schlagbohrmaschine, Bohrhammer oder Schrauber mit einem in einem Maschinengehäuse (12) angeordneten Antriebsmotor zum Antrieb einer Spindel (16), mit einem mit der Spindel (16) verbundenen Werkzeugfutter (14) zur Aufnahme eines Werkzeugs, mit einem Klemmgesperre (32), wobei die Spindel (16) gegenüber dem Maschinengehäuse (12) durch das Klemmgesperre (32) drehfest festlegbar ist, bei einer werkzeugseitigen Drehmomentübertragung und wobei zwischen einer Antriebswelle und der Spindel (16) ein Getriebe umfassend eine antriebsseitige und eine abtriebsseitige Getriebebaugruppe (26) vorgesehen ist, wobei das Klemmgesperre (32) und eine der Getriebebaugruppen (26) eine Baueinheit (30) bilden und das Getriebe mindestens zwei Getriebestufen (26', 26'') umfasst, wobei mindestens eine Getriebebaugruppe (26) zur Umschaltung zwischen den Getriebestufen axial verschieblich auf der Antriebswelle oder der Spindel (16) angeordnet ist, dadurch gekennzeichnet, dass das Klemmgesperre (32) und die zugeordnete Getriebebaugruppe (26) zur Getriebeumschaltung zusammen axial verschieblich sind. Electric hand tool in particular drill (10), percussion drill, hammer drill or Screwdriver with a drive motor arranged in a machine housing (12) for driving a spindle (16) with one connected to the spindle (16) Tool chuck (14) for holding a tool, with a Klemmgesperre (32), wherein the spindle (16) relative to the machine housing (12) by the Klemmgesperre (32) rotatably fixed, at a Tool-side torque transmission and wherein between a drive shaft and the spindle (16) a Transmission comprising a drive-side and a driven-side Transmission assembly (26) is provided, wherein the Klemmgesperre (32) and one of the transmission assemblies (26) form a structural unit (30) and the transmission comprises at least two gear stages (26 ', 26' '), wherein at least one transmission assembly (26) for switching between the gear stages axially ...

Electric hand tool unit, e.g. drill, has driven part with radially outward extending cam narrower in peripheral direction than recess it engages; torque coupling takes place via protrusions and cam

The device has a drive part (12) with protrusions (28) joined together in the peripheral direction and within an opening by a wall section to bound a radially inwardly open recess (32). A driven part (14) has a radially outward extending cam (34) narrower than the recess in the peripheral direction that engages the recess, whereby the torque coupling between the parts takes place via the protrusions and cam.

Plate lock assembly of electric tool and electric tool including the same

스위치몸체와 상기 스위치몸체의 일 측면에 결합되는 돌출부재로 이루어지는 스위치레버부; 상기 스위치몸체를 중립 모드에 고정시키는 제1 영역과, 상기 스위치몸체를 중립 모드, 정회전 모드 및 역회전 모드 사이에서 모드 전환 가능하게 하는 제2 영역 및 상기 스위치몸체를 중립 모드 및 정회전 모드에 사이에서 모드 전환 가능하게 하는 제3 영역이 형성되는 플레이트부; 상기 플레이트부의 일단부에 형성되며, 장착되는 헤드에 의해 가압되어 상기 플레이트부를 이동시키는 헤드접촉리브; 상기 플레이트부의 타단에 형성되어 상기 플레이트부의 이동을 제한하는 스토퍼부;를 포함하는 전동 공구의 플레이트 락 어셈블리를 제공한다. A switch lever portion comprising a switch body and a protruding member coupled to one side of the switch body; A first region for fixing the switch body to a neutral mode, a second region for switching the switch body between a neutral mode, a forward rotation mode and a reverse rotation mode, and a second region for switching the switch body between a neutral mode and a forward rotation mode A plate portion on which a third region for allowing a mode switching is formed; A head contact rib formed at one end of the plate portion, the head contact rib being pressed by the mounted head to move the plate portion; And a stopper portion formed at the other end of the plate portion and restricting movement of the plate portion.

Power tool

Portable drilling machine

FIELD: electricity. SUBSTANCE: portable drilling machine comprises transmission assembly containing first electric motor with rotational axis and distribution unit movement, communicating to tool shaft, supporting means for drilling and welding and having rotation axis. Machine also includes centralized unit comprising support shaft to feed said tool shaft formed by hollow cylindrical pipe containing inside helical pipe with external thread, and second centralized motor configured to control said feed; means for connection and disconnection of said transmission assembly from said centralised unit and system to feed said helical tube to convert rotary motion, communicated by said centralized motor in rectilinear motion of said screw pipe. EFFECT: simplified operation and expanded performances. 5 cl, 7 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 593 045 C2 (51) МПК B23B 45/02 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ 2014144616/02, 09.04.2013 (24) Дата начала отсчета срока действия патента: 09.04.2013 (72) Автор(ы): МАУРО, Раффаэле (IT), КОСТАНЦО, Франческо (IT) 10.04.2012 IT CZ2012A000006 (43) Дата публикации заявки: 10.06.2016 Бюл. № 16 R U (73) Патентообладатель(и): МАУРО, Раффаэле (IT), КОСТАНЦО, Франческо (IT) Приоритет(ы): (30) Конвенционный приоритет: (45) Опубликовано: 27.07.2016 Бюл. № 21 2 5 9 3 0 4 5 (56) Список документов, цитированных в отчете о поиске: US 2003126961 A1, 10.07.2003. SU 500918 A1, 30.01.1976. SU 1792014 A1, 10.08.1996. RU 36087 U1, 27.02.2004. (85) Дата начала рассмотрения заявки PCT на национальной фазе: 10.11.2014 (86) Заявка PCT: 2 5 9 3 0 4 5 R U (87) Публикация заявки PCT: C 2 C 2 IB 2013/000631 (09.04.2013) WO 2013/153430 (17.10.2013) Адрес для переписки: 129090, Москва, ул. Б. Спасская, 25, строение 3, ООО "Юридическая фирма Городисский и Партнеры" (54) ПЕРЕНОСНОЙ СВЕРЛИЛЬНЫЙ СТАНОК (57) Реферат: Переносной сверлильный станок содержит узел трансмиссии, ...

A kind of electric hand drill

一种手电钻，包括电钻本体和用于安装钻头的钻夹头，所述钻夹头内设有一圈环形槽，所述环形槽内设有滑杆，所述滑杆一端的端部伸至钻夹头的钥匙孔内，所述钻夹头外侧设有一圈环形档壁，所述环形档壁上设有一个开口，所述滑杆的另一端延伸至电钻本体内并且与电钻本体的内壁之间设有复位弹簧，所述滑杆的下方设有第一齿板，所述第一齿板的下方啮合设有齿轮组件，所述齿轮组件还啮合第二齿板，所述第二齿板的下端部设有滑轨，所述滑轨上滑动设有垫片，所述垫片的一侧设有电钻开关，所述垫片的另一侧设有电钻按钮，所述垫片上设有两个凸块，所述电钻按钮上设有两个与凸块配合的凹槽，本发明使得操作者在电钻没有断电的情况下更换钻头也不会发生危险。

Rotary-percussive machine

A rotary percussive tool, comprising a casing 1 has a drive with a drive gear 11, a bushing 12 having a non- round hole 13 for insertion of a shank of a boring tool 7 and a protective clutch 22, 23 mounted thereon and meshing with the drive gear to limit torque on the boring tool. The tool has a driven gear 15 which is mounted on the bushing 12 for independent rotation and meshes with the drive gear 11. The driven gear has a hole 20 for insertion of a drilling tool, and provides drilling tool rotation without torque limiting. The boring tool shank 14 is engaged by a reciprocating member 5 actuated by a piston 3. A tool for impelling only has a round shank to avoid rotation with the sleeve 12. <IMAGE>

Multi-speed drill and transmission with low gear only clutch

A multi-speed drill includes a housing with a motor including an output member. A constant mesh parallel axis transmission can be disposed in the housing and can include a high speed and low speed gears. A clutch member can be associated with the low speed gear. A conical spring can bias the low speed gear and the clutch member together for torque transfer up to a predetermined torque level. Above the predetermined level, cam surfaces between the low speed gear and the clutch member move them apart, thereby limiting torque transfer to the output spindle. In the high speed mode the torque transfer between the input pinion and the output spindle bypasses the clutch member. The maximum torque level capable of being generated at the output spindle in the high speed mode can be less than the predetermined torque level.

Multi-mode drill with an electronic switching arrangement

A drill includes a housing with a motor coupled to an output spindle via a transmission. A mode collar can be rotatably mounted on the housing for movement that corresponds to different modes of operation. The mode collar can be coupled to an electronic switch to operate a movable member thereof. The coupling can include a switch housing including a slide member, an actuation spring member and a return spring member. The mode collar can have a cam surface and a cam follower in the form of a shift pin that moves the slide member, causing actuation of the switch. The actuation spring member provides a biasing force that is sufficient to overcome a biasing force of a switch spring member to move the movable member into the actuated position. The mode collar can also enable and disable contact between a fixed hammer member and a movable hammer member mounted around the output spindle.

Control means for portable electric tools

Hand tool

Es wird eine Handwerkzeugmaschine offenbart, umfassend ein Getriebegehäuse mit einem Getriebe zur Übertragung eines von einem Antriebsmotor erzeugten Drehmomentes auf eine um eine Drehachse x rotierende Spindel, die eine axiale Richtung x definiert, wobei das Getriebegehäuse derart mit einem Werkzeugvorsatz über eine Schnittstelle austauschbar verbindbar ist, dass ein Drehmoment von der Spindel auf eine Eingangsspindel des Werkzeugvorsatzes übertragen wird. Die Schnittstelle weist ein gehäuseseitiges Schnittstellenelement mit einem Flanschring auf, wobei der Flanschring drehstarr mit dem Getriebegehäuse verbunden ist, und wobei das gehäuseseitige Schnittstellenelement mit einem werkzeugvorsatzseitigen Schnittstellenelement korrespondiert, das einen Befestigungsring aufweist, der drehbar am Werkzeugvorsatz gelagert ist. Ferner ist der Befestigungsring mit dem Flanschring derart durch eine gekoppelte rotatorische und axiale Relativbewegung des Befestigungsringes gegenüber dem Flanschring in Eingriff zu bringen, dass der Befestigungsring und der Flanschring gemeinsam eine Bajonettverbindungseinrichtung bilden. A handheld power tool is disclosed, comprising a gearbox housing with a gearbox for transmitting a torque generated by a drive motor to a spindle rotating about an axis of rotation x defining an axial direction x, the gearbox housing being exchangeably connectable to a tool attachment via an interface, a torque is transmitted from the spindle to an input spindle of the tool attachment. The interface has a housing-side interface element with a flange, wherein the flange is torsionally rigidly connected to the transmission housing, and wherein the housing-side interface element corresponds to a tool attachment-side interface element having a mounting ring which is rotatably mounted on the tool attachment. Further, the mounting ring with the flange ring is so brought into engagement by a coupled rotational and axial relative movement of the mounting ring relative to ...

Rotary power tool

A core drill includes a housing, a first handle extending from the housing and defining a gap between the handle and the housing, a motor supported within the housing, and a battery removably coupled to the housing and configured to provide power to the motor. The battery has an output voltage greater than 40 volts. The core drill further includes a spindle configured to rotate about a rotational axis in response to torque received from the motor and a fluid delivery system configured to supply fluid to the spindle. The fluid delivery system includes a valve operable to regulate a flow of fluid to the spindle and an auxiliary handle removably coupleable to the housing at each of a first mounting point and a second mounting point.

Power tool

Schlagwerk for a hand tool

Die Erfindung geht aus von einem Schlagwerk für eine Handwerkzeugmaschine (10), insbesondere für einen Bohr- und/oder Meißelhammer, das zum Übertragen von Schlagimpulsen auf eine Schlageinheit (14) vorgesehen ist, die ein Werkzeug (12) umfasst. DOLLAR A Es wird vorgeschlagen, dass die Schlagimpulse einer Arbeitsrichtung (16) des Werkzeugs (12) entgegengesetzt ausgerichtet sind. The invention relates to an impact mechanism for a hand tool (10), in particular for a drill and / or chisel hammer, which is provided for transmitting impact pulses to a beating unit (14) which comprises a tool (12). DOLLAR A It is proposed that the impact pulses of a working direction (16) of the tool (12) are aligned opposite.

Hand-Held Machine Tool Comprising a Planetary Gearbox

The disclosure relates to a hand-held machine tool with a drive unit for driving a tool holder, wherein the drive unit is paired with a planetary gearbox, which is arranged in a gearbox housing and comprises at least one ring gear, and an intermediate shaft, said intermediate shaft being connected to a planet carrier of the planetary gearbox. According to the disclosure, the at least one ring gear is paired with a fixing element which is designed to fix the at least one ring gear in the gearbox housing in the longitudinal direction of the ring gear rotational axis, said fixing element being arranged on the ring gear and/or the intermediate shaft.

Power tool

FIELD: machine building. SUBSTANCE: invention relates to power tools. Power tool (1) includes motor (3) that is connected to spindle (6), gear mechanism (20) reducing the speed of spindle in tubular gear case (9) that is arranged ahead of motor (3), and tubular bracket (8) mounted on motor (3) to connect motor (3) and the tubular gear case (9) to each other. Tool is equipped with at least one pin (28) that is located in bracket (8) of the motor and in tubular gear case (9) to connect bracket (8) of the motor and tubular gear case (9) to each other. Said at least one pin (28) is engaged with a first-stage internal gear (23A) that is located at a first stage of planetary gear speed reduction mechanism (20) to restain first-stage internal gear (23A) from rotation and retain it in place in its axial direction for lowering the speed of spindle rotation. EFFECT: technical result consists in simplification of the design of gear case with simultaneous preservation of its rigidity. 6 cl, 15 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 601 529 C2 (51) МПК B25F 5/00 (2006.01) B25B 23/14 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ 2012113211/02, 04.04.2012 (24) Дата начала отсчета срока действия патента: 04.04.2012 (72) Автор(ы): КОНДО, Томоюки (JP) (73) Патентообладатель(и): МАКИТА КОРПОРЕЙШН (JP) Приоритет(ы): (30) Конвенционный приоритет: R U 05.04.2011 JP 2011-083935 (43) Дата публикации заявки: 10.10.2013 Бюл. № 28 (45) Опубликовано: 10.11.2016 Бюл. № 31 2 6 0 1 5 2 9 (56) Список документов, цитированных в отчете о поиске:US 2003143042 A1, 31.07.2003;SU 965754 A1, 15.10.1982;SU 1009748 A1, 07.04.1983;RU 2252348 C1, 20.05.2005. 2 6 0 1 5 2 9 R U (54) ПРИВОДНОЙ ИНСТРУМЕНТ (57) Реферат: Изобретение относится к приводным инструментам. Приводной инструмент (1) содержит двигатель (3), связанный со шпинделем (6), понижающий скорость шпинделя зубчатый механизм (20) в трубчатом кожухе (9) зубчатых передач, ...

Electrical tool like angle grinding machine

FIELD: process engineering. SUBSTANCE: invention relates to electrically driven tool like angle grinding machine. Proposed tool comprises housing accommodating motor coupled with spindle wherein fitted are machining tools, for example, grinding wheel or drill bit. Manual on-off switch is arranged on housing to control motor operation. Spindle interlock is provided to comprise at least one pin moving between first and second positions, i.e. on- and off-positions. Said switch is connected with said interlock to prevent motor switching on with interlock engaged. Said interlock and pin in second position make protection against motor switch-on by locking motor with the help of on-off switch locking. Spindle interlock is coupled with unlocking means. EFFECT: ruling out tool damage. 14 cl, 11 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2 434 731 (13) C2 (51) МПК B24B 23/02 B23B 45/00 (2006.01) (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ, ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21)(22) Заявка: 2009130377/02, 08.01.2008 (24) Дата начала отсчета срока действия патента: 08.01.2008 (73) Патентообладатель(и): РОБЕРТ БОШ ГМБХ (DE) R U Приоритет(ы): (30) Конвенционный приоритет: 08.01.2007 NL 1033187 (72) Автор(ы): МОЕРБЕЕК Рубен Ян (NL) (43) Дата публикации заявки: 20.02.2011 Бюл. № 5 2 4 3 4 7 3 1 (45) Опубликовано: 27.11.2011 Бюл. № 33 (56) Список документов, цитированных в отчете о поиске: DE 3001907 A1, 23.07.1981. EP 0890420 A, 13.01.1999. US 4434586 A, 06.03.1984. US 2002/0123301 A1, 05.09.2002. RU 2152862 C2, 20.07.2000. RU 2164854 C1, 10.04.2001. 2 4 3 4 7 3 1 R U (86) Заявка PCT: NL 2008/000006 (08.01.2008) C 2 C 2 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 10.08.2009 (87) Публикация заявки РСТ: WO 2008/085029 (17.07.2008) Адрес для переписки: 103735, Москва, ул.Ильинка, 5/2, ООО "Союзпатент", пат.пов. М.Н.Стручкову, рег. № 1102 (54) ЭЛЕКТРИЧЕСКИЙ ИНСТРУМЕНТ, ТАКОЙ КАК УГЛОВАЯ ШЛИФОВАЛЬНАЯ МАШИНА (57) Реферат: ...