EP2632642B1 - Hand machine tool comprising a mechanical striking mechanism - Google Patents
Hand machine tool comprising a mechanical striking mechanism Download PDFInfo
- Publication number
- EP2632642B1 EP2632642B1 EP11771084.8A EP11771084A EP2632642B1 EP 2632642 B1 EP2632642 B1 EP 2632642B1 EP 11771084 A EP11771084 A EP 11771084A EP 2632642 B1 EP2632642 B1 EP 2632642B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- drive
- hand
- drive member
- power tool
- percussion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Not-in-force
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B21/00—Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose
- B25B21/02—Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose with means for imparting impact to screwdriver blade or nut socket
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B21/00—Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose
- B25B21/02—Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose with means for imparting impact to screwdriver blade or nut socket
- B25B21/026—Impact clutches
Definitions
- the present invention relates to a hand tool with a mechanical percussion having a provided with at least one drive cam striker and provided with at least one output cam output shaft which is connected to a tool holder for receiving a tool, wherein the drive cam for the striking drive of the output cam in impact mode the mechanical percussion is formed.
- Such a trained as a rotary impact wrench hand tool which has a mechanical percussion with a striker and an output shaft.
- drive cams formed on the impactor engage in output cams provided on the output shaft such that rotational movement of the impactor is transmitted to the output shaft.
- the drive cams drive the output cam in an associated direction of rotation, wherein in a corresponding impact generation in each case a drive cam hammer-like beats against an associated output cam.
- Out DE 23 13 402 A1 is an impact wrench with a cup-shaped hammer guide housing known, which is provided on its inner wall with an axially parallel extending internal teeth. In the internal toothing is axially provided with an associated external toothing hammer with impact cam arranged. The impact cam beat in striking position on corresponding cam of the anvil.
- a disadvantage of the prior art is that the impact generation in impact operation of the impact mechanism leads to a disturbing noise and thus to loss of comfort in the use of such a power tool.
- Out EP 335 032 A1 is also known a rotary impact wrench with a rotatably mounted hammer housing.
- rotary impact means are stored, which cooperate in the rotary impact operation with rotary impact means of the output spindle.
- An object of the invention is therefore to provide a new hand tool that has a mechanical percussion that allows at least a reduction of noise in the impact mode.
- a hand tool with a mechanical striking mechanism which has a provided with at least one drive cam impact body and provided with at least one output cam output shaft which is connected to a tool holder for receiving a tool.
- the drive cam is designed for the impact drive of the output cam in the impact mode of the mechanical impact mechanism.
- the output shaft is drivable by a pot-like drive body, which at least partially surrounds the output shaft and the impactor and is connected via a threaded connection with a drivable by an associated gear drive member.
- the invention thus makes it possible to provide a hand tool with a mechanical percussion, in which a schlag production takes place within a pot-like drive body, which thus serves as a damping member for noise reduction in the impact generation and is also connected via a reliable and stable threaded connection with an associated drive member.
- the threaded connection for the rotationally fixed anchoring of the drive member in the drive body is associated with an anti-rotation device, which is designed to prevent a rotation of the drive member relative to the drive body.
- a fastening device with concentric rings is preferably formed on the drive body and on the drive member a counter-fastening device with concentric rings.
- At least two fixing bolts are provided, via which the concentric rings of the drive body are in rotationally fixed engagement with the concentric rings of the drive member.
- the invention thus enables the provision of a simple and cost-effective rotation.
- the at least two fixing bolts are preferably designed to prevent unscrewing of the drive member from the drive body.
- the drive member is supported on an axially immovably mounted in the drive body annular disc.
- the annular disc is preferably downstream of the drive member and adapted to prevent unscrewing of the drive member from the drive body.
- the threaded connection between the drive member and drive body can be done by inexpensive and quickly produced radial thread.
- the transmission is designed as a planetary gear, wherein the drive member forms a planetary gear associated planet carrier.
- the drive member preferably has recesses for receiving planetary gears of the planetary gear.
- the drive member is mounted via an associated bearing element in a transmission housing associated with the transmission.
- the invention thus enables a secure and reliable mounting of the drive member in the transmission housing.
- the pot-like drive body preferably forms a cavity in which the impactor is arranged axially displaceably on the output shaft.
- the striker can be arranged in a simple manner in the drive body.
- the impactor is acted upon by a spring element arranged in the cavity in the direction of the output cam.
- the direction of the output cam corresponds to an axial direction of the output shaft facing away from the tool holder.
- the impactor is preferably supported on at least one steel ball on the drive body.
- a mechanical hammer mechanism for a hand tool with a shock body provided with at least one drive cam and with an output shaft provided with at least one output cam and with a tool holder for Recording a tool is connected.
- the drive cam is designed for the impact drive of the output cam in the impact mode of the mechanical impact mechanism.
- the output shaft is drivable by a pot-like drive body which surrounds the output shaft and the impactor at least in sections and is connected via a threaded connection with a drive member drivable by a transmission associated with the power tool.
- Fig. 1 1 shows a hand tool 100 provided with a tool holder 450 and a mechanical impact mechanism 200, which housing 110 having a handle 126.
- the handheld power tool 100 for mains-independent power supply can be mechanically and electrically connected to a battery pack 130.
- the hand tool 100 is exemplified as a cordless rotary impact wrench. It should be noted, however, that the present invention is not limited to cordless impact drivers, but rather may be applied to various power tools in which a tool is rotated, e.g. B. in a percussion drill, etc., regardless of whether the power tool is independent of the mains with a battery pack or network-dependent operable. In addition, it should be noted that the present invention is not limited to motor-powered hand tool machines, but is generally applicable to tools in which at Fig. 2 to 7 described Schlagmaschine 200 or 600 can be used.
- the drive motor 114 is z. B. via a manual switch 128 actuated, d. H. can be switched on and off, and can be any type of engine, eg. As an electronically commutated motor or a DC motor.
- the drive motor 114 is so electronically controlled or controlled that both a reversing operation, as well as specifications with respect to a desired rotational speed can be realized.
- the operation and structure of a suitable drive motor are well known from the prior art and are therefore not further described here for the sake of brevity of the description.
- the drive motor 114 is connected via an associated motor shaft 116 to the transmission 118, which converts rotation of the motor shaft 116 into rotation of a drive member 125. This conversion is preferably such that the drive member 125 rotates relative to the motor shaft 116 with increased torque but reduced rotational speed.
- the drive motor 114 is illustratively arranged in a motor housing 115 and the gear 118 in a gear housing 119, wherein the gear housing 119 and the motor housing 115 are arranged in the housing 110 by way of example.
- the mechanical percussion mechanism 200 connected to the drive member 125 is exemplarily a rotary percussion mechanism arranged in an illustrative impact mechanism housing 220, which has a striking body 500 which executes sudden high-intensity rotational pulses via associated drive cams 512, 514 and an output shaft 400.
- impactor housing 220 is merely exemplary in nature and is not intended to limit the invention. This can also be found in striking mechanisms without separate impact mechanism housing application, the z. B. are arranged directly in the housing 110 of the power tool 100.
- An exemplary construction of the percussion mechanism 200 is used in conjunction with a Fig. 2 and Fig. 6 shown section 150 of the power tool 100 described.
- the tool holder 450 is provided, which is preferably designed for receiving insert tools and with an insert tool 140 with outer polygonal coupling 142 is connectable.
- the tool holder 450 according to an embodiment also or alternatively thereto with an insert tool with polygon socket coupling, z. B. a socket, connectable.
- the insert tool 140 is exemplified as a screwdriver bit with the external polygon coupling 142, illustratively an octagonal coupling, formed in a suitable inner receptacle (455 in Fig. 2 and 6 ) of the tool holder 450 is arranged.
- Such a screwdriver bit and a suitable socket wrench are sufficiently known from the prior art, so that is omitted here for the purpose of scarcity of the description to a detailed description.
- Fig. 2 shows the section 150 of Fig. 1 with the arranged in the gear housing 119 gear 118 and standing in operative connection with the output shaft 400, provided with the striking mechanism housing 220 mechanical striking 200 of Fig. 1 according to a first embodiment.
- the mechanical Schlagtechnik 200 has as in Fig. 1 describe the drive body 300 connected to the drive member 125 of the transmission 118, which is arranged together with the impactor 500 in the striking mechanism housing 220. This is illustratively attached to the transmission housing 119.
- the transmission 118 is a reduction gear
- the z. B. is designed in the manner of a planetary gear and has one or more planetary stages.
- the planetary gear 118 has a single planetary stage 201 with a sun gear 203, planetary gears 204, 205, a ring gear 208 and a planet carrier 207.
- the sun gear 203 is drivable by a drive element 202 which is rotatably connected to the motor shaft 116 or formed on this or can be integrally formed with this.
- the sun gear 203 and the drive element 202 are preferably also integrally formed. Since the structure and operation of a planetary gear are well known to those skilled in the art, a further description of the planetary gear 118 is omitted here for brevity of the description.
- the planet carrier 207 is illustratively connected to the drive member 125 and preferably formed on this or formed integrally therewith. According to one embodiment, the planet carrier 207 forms a front region 270 of the drive member 125.
- This front region 270 is designed as an example plate-shaped and flange-like and provided with a fastening device 240 for rotationally fixed attachment of the planet carrier 207 and the drive member 125 to the drive body 300.
- a bearing journal 470 is formed, and on the opposite axial side, the front, flange-like region 270 merges into a central, cylindrical region 271.
- the bearing pins 278, 279 are z. B. in cylindrical openings (462, 464 in Fig. 4 and 5 ) rotatably mounted.
- the central region 271 merges into a rear, annular region 272 of the drive member 125, which illustratively in a arranged in the gear housing 119 bearings 214, z. B. a ball bearing, is rotatably mounted and a cavity 289 for receiving the sun gear 203 and the drive element 202 is formed.
- An exemplary embodiment of the drive member 125 is shown in FIG Fig. 4 and 5 illustrated.
- the drive member 125 and its planet carrier 207 is rotatably connected to the rotary drive of the drive body 300 with this.
- the drive body 300 has, for example, a cooperating with the fastening device 240 Counter fastening device 340.
- the fastening device 240 and the counter fastening device 340 illustratively form a threaded connection 199, wherein the fastening device 240, for. B. by an external thread and the mating fastening device 340 z. B. is formed by an associated internal thread.
- the external thread 240 and the internal thread 340 have helical threads, so that the drive member 125 can be screwed into the drive body 300.
- the drive member 125 is illustratively supported on an annular disk 247 arranged axially immovably in the drive body 300. This is the drive member 125 and the planet carrier 207 downstream and z. B. in a formed on an inner wall 320 of the drive body 300 annular groove 245 fixed.
- the output shaft 400 is rotatably mounted in the impact mechanism housing 220 via a sliding bearing 280 and has, by way of example, a shaft body 250 provided with an annular shoulder 255. At least one and illustratively two output cams 412, 414 are formed thereon and the tool holder 450 of FIG Fig. 1 that z. B. is provided with an octagonal interior shot 455. An axial end of the shaft body 250, on which the output cams 412, 414 are provided, is illustratively rotatably mounted on the bearing journal 470 of the drive member 125, preferably slidably.
- the output shaft 400 is at least partially enclosed by the drive body 300 according to an embodiment.
- This is exemplified pot-shaped and has at a first axial end 351 a cup bottom-like wall 350 which is provided with an opening 360.
- This illustratively forms an annular collar 254.
- the cup-shaped drive body 300 has an opening 305, on which the counter-fastening device 340 is formed.
- Illustrative has the pot-like Drive body 300, the inner wall 320 and forms a cavity 310, in which the shaft body 250 is arranged with the two output cams 412, 414 of the output shaft 400 to the ring shoulder provided at this 255, so that the output shaft 400 rotatably, but axially immovable in the drive body 300th is arranged.
- the annular shoulder 255 bears against the ring collar 254 formed on the drive body 300 by way of example.
- the impactor 500 is rotatably arranged and axially displaceable.
- the impactor 500 is exemplified pot-shaped and has an outer wall 510 and a bottom wall 550, which form an interior 560. In the bottom wall 550, an opening 599 is formed, through which the shaft body 250 of the output shaft 400 passes.
- the impactor 500 is acted upon by a likewise arranged in the cavity 310 spring element 242 in the direction of the output cam 412, 414.
- This direction of the output cams 412, 414 corresponds to an axial direction of the output shaft 400 facing away from the tool holder 450, which is indicated by 244 by way of example.
- the z. B the z.
- the impactor body 500 is acted upon by the spring element 242 in the direction 244, ie in a direction corresponding to a corresponding direction of advance of the power tool 100 of Fig. 1 is axially opposite in operation.
- This propulsion direction is in Fig. 2 exemplified with 299.
- the impactor body 500 is supported on the drive body 300 via at least one driver ball.
- the impactor 500 is supported on the drive body 300 via two steel balls 290, 295.
- at least one groove-like recess for guiding the at least one driver ball is formed on the inner wall 320 of the drive body 300.
- On the outer wall 510 of the impactor 500 is at least formed a recess or recess for supporting the at least one driver ball.
- a recess or recess 530 for mounting the steel ball 290 and a recess or recess 535 for mounting the steel ball 295 is formed.
- the steel balls 290, 295 are movable in the percussion mode of the mechanical percussion mechanism 200 in the V-grooves 330, 335 and the recesses or recesses 530, 535 to allow rotation of the impactor 500 relative to the output shaft 400 and relative to the drive body 300.
- the mode of operation of a V-groove rotary impact mechanism is known in principle from the prior art, so that a detailed description of the mode of operation of the percussion mechanism 200 is dispensed with here.
- Fig. 3 shows the cup-shaped drive body 300 of Fig. 2 with the opening 305 formed at the axial end 352 and the pot bottom-like wall 350 formed at the opposite axial end 351, which is provided with the opening 360.
- Fig. 3 3 illustrates the V-groove 330 formed on the inner wall 320 and the counter-fastening device 340 provided in the region of the opening 305.
- this counter-fastening device 340 has concentric rings 345 which are adapted for rotationally fixed anchoring to associated concentric rings (445 in FIG Fig. 4 and 5 ) of the drive member 125 are formed.
- Fig. 4 shows the drive member 125 of Fig. 1 and 2 with the front, middle and rear regions 270, 271 and 272, respectively, and the planet carrier 207 provided in the front region 270, on which the bearing journal 470 and the fastening device 240 are formed by way of example.
- the fastening device 240 has concentric rings 445 for rotationally fixed anchoring to the concentric rings (345 in FIG Fig. 3 ) of the drive body 300 of Fig. 3 on and in the central region 271 of the drive member 125 are radial recesses 452, 454 for receiving the planet gears 204 and 205 of Fig. 2 intended.
- At the radial recesses 452, 454 are cylindrical openings 462, 464 for supporting the planetary gears 204, 205 of Fig. 2 associated bearing pin 278 and 279 formed.
- Fig. 5 shows a sectional view of the drive member 125 of Fig. 4 to illustrate the concentric rings 445, the radial recesses 452, 454 and the cylindrical openings 462, 464, and the cavity 289.
- the flange formed planet carrier 207 of the front portion 270 on an annular shoulder 599 in the cylindrical central portion 271 over.
- the rear portion 272 forms an outer ring 572 for mounting in the rolling bearing 214 of FIG Fig. 2 out.
- Fig. 6 shows the section 150 of Fig. 1 with the arranged in the gear housing 119 gear 118 and a standing in operative connection with the output shaft 400, mechanical percussion 600 according to a second embodiment.
- the Schlagtechnik 600 can be used to realize the impact mechanism 200 of Fig. 1 and 2 serve and in contrast to this, a drive member 625, which is substantially the drive member 125 of Fig. 2 corresponds, but has a planet carrier 607, compared to the planet carrier 207 of Fig. 2 has a reduced diameter.
- the planet carrier 607 for forming the threaded connection 199 has the in Fig. 4 and 5 shown concentric rings 445 and the drive body 300 has the in Fig. 3 shown concentric rings 345.
- the threaded connection 199 for the rotationally fixed anchoring of the drive member 625 in the drive body 300 is associated with an anti-rotation device 640, which is designed to prevent a rotation of the drive member 625 relative to the drive body 300.
- the anti-rotation device 640 illustratively has at least two fixing bolts 643, 645, via which the concentric rings 345 of the drive body 300 are in rotationally fixed engagement with the concentric rings 445 of the drive member 625.
- the fixing bolts 643, 645 are designed, for example, to prevent unscrewing of the drive member 625 from the drive body 300.
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Description
Die vorliegende Erfindung betrifft eine Handwerkzeugmaschine mit einem mechanischen Schlagwerk, das einen mit mindestens einem Antriebsnocken versehenen Schlagkörper und eine mit mindestens einem Abtriebsnocken versehene Abtriebswelle aufweist, die mit einer Werkzeugaufnahme zur Aufnahme eines Werkzeugs verbunden ist, wobei der Antriebsnocken zum schlagenden Antrieb des Abtriebsnockens im Schlagbetrieb des mechanischen Schlagwerks ausgebildet ist.The present invention relates to a hand tool with a mechanical percussion having a provided with at least one drive cam striker and provided with at least one output cam output shaft which is connected to a tool holder for receiving a tool, wherein the drive cam for the striking drive of the output cam in impact mode the mechanical percussion is formed.
Aus der
Aus
Nachteilig am Stand der Technik ist, dass die Schlagerzeugung im Schlagbetrieb des Schlagwerks zu einer störenden Geräuschentwicklung und somit zu Komforteinbußen bei der Verwendung einer derartigen Handwerkzeugmaschine führt.A disadvantage of the prior art is that the impact generation in impact operation of the impact mechanism leads to a disturbing noise and thus to loss of comfort in the use of such a power tool.
In der
Aus
Eine Aufgabe der Erfindung ist es daher, eine neue Handwerkzeugmaschine bereitzustellen, die ein mechanisches Schlagwerk aufweist, das zumindest eine Reduzierung der Geräuschentwicklung im Schlagbetrieb ermöglicht.An object of the invention is therefore to provide a new hand tool that has a mechanical percussion that allows at least a reduction of noise in the impact mode.
Dieses Problem wird gelöst durch eine Handwerkzeugmaschine mit einem mechanischen Schlagwerk, das einen mit mindestens einem Antriebsnocken versehenen Schlagkörper und eine mit mindestens einem Abtriebsnocken versehene Abtriebswelle aufweist, die mit einer Werkzeugaufnahme zur Aufnahme eines Werkzeugs verbunden ist. Der Antriebsnocken ist zum schlagenden Antrieb des Abtriebsnockens im Schlagbetrieb des mechanischen Schlagwerks ausgebildet. Die Abtriebswelle ist von einem topfartigen Antriebskörper antreibbar, der die Abtriebswelle und den Schlagkörper zumindest abschnittsweise umschließt und über eine Gewindeverbindung mit einem von einem zugeordneten Getriebe antreibbaren Antriebsglied verbunden ist.This problem is solved by a hand tool with a mechanical striking mechanism, which has a provided with at least one drive cam impact body and provided with at least one output cam output shaft which is connected to a tool holder for receiving a tool. The drive cam is designed for the impact drive of the output cam in the impact mode of the mechanical impact mechanism. The output shaft is drivable by a pot-like drive body, which at least partially surrounds the output shaft and the impactor and is connected via a threaded connection with a drivable by an associated gear drive member.
Die Erfindung ermöglicht somit die Bereitstellung einer Handwerkzeugmaschine mit einem mechanischen Schlagwerk, bei dem eine Schlagerzeugung innerhalb eines topfartigen Antriebskörpers erfolgt, der somit als Dämpfglied zur Geräuschreduzierung bei der Schlagerzeugung dient und darüber hinaus über eine zuverlässige und stabile Gewindeverbindung mit einem zugeordneten Antriebsglied verbunden ist.The invention thus makes it possible to provide a hand tool with a mechanical percussion, in which a schlag production takes place within a pot-like drive body, which thus serves as a damping member for noise reduction in the impact generation and is also connected via a reliable and stable threaded connection with an associated drive member.
Gemäß einer Ausführungsform ist der Gewindeverbindung zur drehfesten Verankerung des Antriebsglieds im Antriebskörper eine Verdrehsicherung zugeordnet, die dazu ausgebildet ist, ein Verdrehen des Antriebsglieds relativ zum Antriebskörper zu verhindern.According to one embodiment, the threaded connection for the rotationally fixed anchoring of the drive member in the drive body is associated with an anti-rotation device, which is designed to prevent a rotation of the drive member relative to the drive body.
Somit kann auf einfache Art und Weise sowohl im Normalbetrieb, als auch in einem entsprechenden Reversierbetrieb der Handwerkzeugmaschine ein Verdrehen des Antriebsglieds relativ zum Antriebskörper verhindert werden.Thus, a twisting of the drive member relative to the drive body can be prevented in a simple manner both in normal operation, as well as in a corresponding reversing operation of the power tool.
Zur Ausbildung der drehfest verankerten Gewindeverbindung ist bevorzugt an dem Antriebskörper eine Befestigungsvorrichtung mit konzentrischen Ringen und an dem Antriebsglied eine Gegenbefestigungsvorrichtung mit konzentrischen Ringen ausgebildet.To form the rotatably anchored threaded connection, a fastening device with concentric rings is preferably formed on the drive body and on the drive member a counter-fastening device with concentric rings.
Somit kann eine sichere und robuste Gewindeverbindung zwischen dem Antriebskörper und dem Antriebsglied ermöglicht werden.Thus, a secure and robust threaded connection between the drive body and the drive member can be made possible.
Gemäß einer Ausführungsform sind mindestens zwei Fixierbolzen vorgesehen, über die die konzentrischen Ringe des Antriebskörpers im drehfesten Eingriff mit den konzentrischen Ringen des Antriebsglieds stehen.According to one embodiment, at least two fixing bolts are provided, via which the concentric rings of the drive body are in rotationally fixed engagement with the concentric rings of the drive member.
Die Erfindung ermöglicht somit die Bereitstellung einer einfachen und kostengünstigen Verdrehsicherung.The invention thus enables the provision of a simple and cost-effective rotation.
Die mindestens zwei Fixierbolzen sind bevorzugt dazu ausgebildet, ein Ausschrauben des Antriebsglieds aus dem Antriebskörper zu verhindern.The at least two fixing bolts are preferably designed to prevent unscrewing of the drive member from the drive body.
Somit kann eine stabile und zuverlässige Verbindung des Antriebsglieds mit dem Antriebskörper ermöglicht werden.Thus, a stable and reliable connection of the drive member with the drive body can be made possible.
Gemäß einer Ausführungsform stützt sich das Antriebsglied an einer im Antriebskörper axial unbeweglich gelagerten Ringscheibe ab.According to one embodiment, the drive member is supported on an axially immovably mounted in the drive body annular disc.
Somit kann auf einfache Art und Weise ein Ausschrauben des Antriebsglieds aus dem Antriebskörper verhindert werden.Thus, in a simple manner, a unscrewing of the drive member can be prevented from the drive body.
Die Ringscheibe ist dem Antriebsglied bevorzugt nachgelagert und dazu ausgebildet, ein Ausschrauben des Antriebsglieds aus dem Antriebskörper zu verhindern.The annular disc is preferably downstream of the drive member and adapted to prevent unscrewing of the drive member from the drive body.
Somit kann die Gewindeverbindung zwischen Antriebsglied und Antriebskörper durch kostengünstig und schnell herstellbare Radialgewinde erfolgen.Thus, the threaded connection between the drive member and drive body can be done by inexpensive and quickly produced radial thread.
Gemäß einer Ausführungsform ist das Getriebe als Planetengetriebe ausgebildet, wobei das Antriebsglied einen dem Planetengetriebe zugeordneten Planetenträger ausbildet.According to one embodiment, the transmission is designed as a planetary gear, wherein the drive member forms a planetary gear associated planet carrier.
Somit kann ein unkompliziertes und robustes Getriebe bereitgestellt werden.Thus, an uncomplicated and robust transmission can be provided.
Das Antriebsglied weist bevorzugt Ausnehmungen zur Aufnahme von Planetenrädern des Planetengetriebes auf.The drive member preferably has recesses for receiving planetary gears of the planetary gear.
Somit kann ein kompaktes Antriebsglied bereitgestellt werden.Thus, a compact drive member can be provided.
Gemäß einer Ausführungsform ist das Antriebsglied über ein zugeordnetes Lagerelement in einem dem Getriebe zugeordneten Getriebegehäuse gelagert.According to one embodiment, the drive member is mounted via an associated bearing element in a transmission housing associated with the transmission.
Die Erfindung ermöglicht somit eine sichere und zuverlässige Lagerung des Antriebsglieds im Getriebegehäuse.The invention thus enables a secure and reliable mounting of the drive member in the transmission housing.
Der topfartige Antriebskörper bildet bevorzugt einen Hohlraum aus, in dem der Schlagkörper axial verschiebbar auf der Abtriebswelle angeordnet ist.The pot-like drive body preferably forms a cavity in which the impactor is arranged axially displaceably on the output shaft.
Somit kann der Schlagkörper auf einfache Art und Weise in dem Antriebskörper angeordnet werden.Thus, the striker can be arranged in a simple manner in the drive body.
Gemäß einer Ausführungsform ist der Schlagkörper von einem in dem Hohlraum angeordneten Federelement in Richtung der Abtriebsnocken beaufschlagt. Die Richtung der Abtriebsnocken entspricht einer von der Werkzeugaufnahme weg weisenden axialen Richtung der Abtriebswelle.According to one embodiment, the impactor is acted upon by a spring element arranged in the cavity in the direction of the output cam. The direction of the output cam corresponds to an axial direction of the output shaft facing away from the tool holder.
Somit kann auf einfache Art und Weise eine Schlagerzeugung an einer um einen vorgegebenen Abstand von der Werkzeugaufnahme beabstandeten Schlagposition ermöglicht werden.Thus, in a simple manner, a blow generation can be made possible at a stroke position spaced by a predetermined distance from the tool holder.
Der Schlagkörper ist bevorzugt über mindestens eine Stahlkugel am Antriebskörper abgestützt.The impactor is preferably supported on at least one steel ball on the drive body.
Somit kann eine axiale Verschiebung des Schlagkörpers im Antriebskörper auf einfache Art und Weise mittels der Stahlkugel ermöglicht werden.Thus, an axial displacement of the impactor in the drive body can be made possible in a simple manner by means of the steel ball.
Das Eingangs genannte Problem wird auch gelöst durch ein mechanisches Schlagwerk für eine Handwerkzeugmaschine, mit einem mit mindestens einem Antriebsnocken versehenen Schlagkörper und einer mit mindestens einem Abtriebsnocken versehenen Abtriebswelle, die mit einer Werkzeugaufnahme zur Aufnahme eines Werkzeugs verbunden ist. Der Antriebsnocken ist zum schlagenden Antrieb des Abtriebsnockens im Schlagbetrieb des mechanischen Schlagwerks ausgebildet. Die Abtriebswelle ist von einem topfartigen Antriebskörper antreibbar, der die Abtriebswelle und den Schlagkörper zumindest abschnittsweise umschließt und über eine Gewindeverbindung mit einem von einem der Handwerkzeugmaschine zugeordneten Getriebe antreibbaren Antriebsglied verbunden ist.The problem mentioned at the outset is also solved by a mechanical hammer mechanism for a hand tool, with a shock body provided with at least one drive cam and with an output shaft provided with at least one output cam and with a tool holder for Recording a tool is connected. The drive cam is designed for the impact drive of the output cam in the impact mode of the mechanical impact mechanism. The output shaft is drivable by a pot-like drive body which surrounds the output shaft and the impactor at least in sections and is connected via a threaded connection with a drive member drivable by a transmission associated with the power tool.
Die Erfindung ist anhand von in den Zeichnungen dargestellten Ausführungsbeispielen in der nachfolgenden Beschreibung näher erläutert. Es zeigen:
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Fig. 1 eine schematische Ansicht einer Handwerkzeugmaschine mit einem Einsatzwerkzeug gemäß einer Ausführungsform, -
Fig. 2 eine vergrößerte Schnittansicht eines Ausschnitts der Handwerkzeugmaschine vonFig. 1 gemäß einer ersten Ausführungsform, -
Fig. 3 eine perspektivische Ansicht des Antriebskörpers vonFig. 1 und2 , -
Fig. 4 eine perspektivische Ansicht des Antriebsglieds vonFig. 1 und2 , -
Fig. 5 eine Schnittansicht des Antriebsglieds vonFig. 4 , -
Fig. 6 eine vergrößerte Schnittansicht eines Ausschnitts der Handwerkzeugmaschine vonFig. 1 gemäß einer zweiten Ausführungsform, und -
Fig. 7 eine perspektivische Ansicht der Abtriebswelle vonFig. 1 und6 , an der der Schlagkörper, das Federelement, die Stahlkugel und das Antriebsglied vonFig. 6 angeordnet sind.
-
Fig. 1 FIG. 2 is a schematic view of a hand tool with an insertion tool according to an embodiment; FIG. -
Fig. 2 an enlarged sectional view of a section of the power tool ofFig. 1 according to a first embodiment, -
Fig. 3 a perspective view of the drive body ofFig. 1 and2 . -
Fig. 4 a perspective view of the drive member ofFig. 1 and2 . -
Fig. 5 a sectional view of the drive member ofFig. 4 . -
Fig. 6 an enlarged sectional view of a section of the power tool ofFig. 1 according to a second embodiment, and -
Fig. 7 a perspective view of the output shaft ofFig. 1 and6 at which the striker, the spring element, the steel ball and the drive link ofFig. 6 are arranged.
Die Handwerkzeugmaschine 100 ist beispielhaft als Akku-Drehschlagschrauber ausgebildet. Es wird jedoch darauf hingewiesen, dass die vorliegende Erfindung nicht auf Akku-Drehschlagschrauber beschränkt ist, sondern vielmehr bei unterschiedlichen Elektrowerkzeugen Anwendung finden kann, bei denen ein Werkzeug in Drehungen versetzt wird, z. B. bei einer Schlagbohrmaschine etc., unabhängig davon, ob das Elektrowerkzeug netzunabhängig mit einem Akkupack oder netzabhängig betreibbar ist. Darüber hinaus wird darauf hingewiesen, dass die vorliegende Erfindung nicht auf motorbetriebene Handwerkzeugmaschinen beschränkt ist, sondern allgemein bei Werkzeugen verwendbar ist, bei denen das bei
In dem Gehäuse 110 sind ein von dem Akkupack 130 mit Strom versorgter, elektrischer Antriebsmotor 114, ein Getriebe 118 und das Schlagwerk 200 angeordnet. Der Antriebsmotor 114 ist z. B. über einen Handschalter 128 betätigbar, d. h. ein- und ausschaltbar, und kann ein beliebiger Motortyp sein, z. B. ein elektronisch kommutierter Motor oder ein Gleichstrommotor. Vorzugsweise ist der Antriebsmotor 114 derart elektronisch steuer- bzw. regelbar, dass sowohl ein Reversierbetrieb, als auch Vorgaben hinsichtlich einer gewünschten Drehgeschwindigkeit realisierbar sind. Die Funktionsweise und der Aufbau eines geeigneten Antriebsmotors sind aus dem Stand der Technik hinreichend bekannt und werden deshalb hier zwecks Knappheit der Beschreibung nicht weiter beschrieben.In the
Der Antriebsmotor 114 ist über eine zugeordnete Motorwelle 116 mit dem Getriebe 118 verbunden, das eine Drehung der Motorwelle 116 in eine Drehung eines Antriebsglieds 125 umwandelt. Diese Umwandlung erfolgt bevorzugt derart, dass das Antriebsglied 125 sich relativ zur Motorwelle 116 mit vergrößertem Drehmoment, aber verringerter Drehgeschwindigkeit dreht. Der Antriebsmotor 114 ist illustrativ in einem Motorgehäuse 115 und das Getriebe 118 in einem Getriebegehäuse 119 angeordnet, wobei das Getriebegehäuse 119 und das Motorgehäuse 115 beispielhaft in dem Gehäuse 110 angeordnet sind.The
Das mit dem Antriebsglied 125 verbundene, mechanische Schlagwerk 200 ist beispielhaft ein in einem illustrativen Schlagwerkgehäuse 220 angeordnetes Dreh- bzw. Rotationsschlagwerk, das einen Schlagkörper 500 aufweist, der über zugeordnete Antriebsnocken 512, 514 schlagartige Drehimpulse mit hoher Intensität ausführt und auf eine Abtriebswelle 400, z. B. eine Abtriebsspindel, überträgt. Es wird jedoch darauf hingewiesen, dass die Verwendung des Schlagwerkgehäuses 220 lediglich beispielhaften Charakter hat und nicht als Einschränkung der Erfindung dient. Diese kann vielmehr auch bei Schlagwerken ohne separate Schlagwerkgehäuse Anwendung finden, die z. B. unmittelbar im Gehäuse 110 der Handwerkzeugmaschine 100 angeordnet sind. Ein beispielhafter Aufbau des Schlagwerks 200 wird in Verbindung mit einem bei
An der Abtriebswelle 400 ist illustrativ die Werkzeugaufnahme 450 vorgesehen, die bevorzugt zur Aufnahme von Einsatzwerkzeugen ausgebildet ist und mit einem Einsatzwerkzeug 140 mit Außenmehrkant-Kupplung 142 verbindbar ist. Darüber hinaus kann die Werkzeugaufnahme 450 gemäß einer Ausführungsform auch oder alternativ hierzu mit einem Einsatzwerkzeug mit Innenmehrkant-Kupplung, z. B. einem Steckschlüssel, verbindbar sein. Das Einsatzwerkzeug 140 ist beispielhaft als Schrauberbit mit der Außenmehrkant-Kupplung 142, illustrativ einer Achtkant-Kupplung, ausgebildet, die in einer geeigneten Innenaufnahme (455 in
Gemäß einer Ausführungsform ist das Getriebe 118 ein Untersetzungsgetriebe, das z. B. nach Art eines Planetengetriebes ausgebildet ist und eine oder mehrere Planetenstufen aufweist. Illustrativ hat das Planetengetriebe 118 eine einzelne Planetenstufe 201 mit einem Sonnenrad 203, Planetenrädern 204, 205, einem Hohlrad 208 und einem Planetenträger 207. Das Sonnenrad 203 ist von einem Antriebselement 202 antreibbar, das drehfest mit der Motorwelle 116 verbunden ist oder an diese angeformt oder einstückig mit dieser ausgebildet sein kann. Das Sonnenrad 203 und das Antriebselement 202 sind bevorzugt ebenfalls einstückig ausgebildet. Da der Aufbau und die Funktionsweise eines Planetengetriebes dem Fachmann hinreichend bekannt sind, wird hier zwecks Knappheit der Beschreibung auf eine weitere Beschreibung des Planetengetriebes 118 verzichtet.According to one embodiment, the
Der Planetenträger 207 ist illustrativ mit dem Antriebsglied 125 verbunden und bevorzugt an dieses angeformt bzw. einstückig mit diesem ausgebildet. Gemäß einer Ausführungsform bildet der Planetenträger 207 einen vorderen Bereich 270 des Antriebsglieds 125 aus. Dieser vordere Bereich 270 ist beispielhaft plattenförmig und flanschartig ausgebildet und mit einer Befestigungsvorrichtung 240 zur drehfesten Befestigung des Planetenträgers 207 bzw. des Antriebsglieds 125 an dem Antriebskörper 300 versehen. An einer - in
Das Antriebsglied 125 bzw. dessen Planetenträger 207 ist zum drehenden Antrieb des Antriebskörpers 300 drehfest mit diesem verbunden. Hierzu hat der Antriebskörper 300 beispielhaft eine mit der Befestigungsvorrichtung 240 zusammenwirkende Gegenbefestigungsvorrichtung 340. Die Befestigungsvorrichtung 240 und die Gegenbefestigungsvorrichtung 340 bilden illustrativ eine Gewindeverbindung 199, wobei die Befestigungsvorrichtung 240 z. B. durch ein Außengewinde und die Gegenbefestigungsvorrichtung 340 z. B. durch ein zugeordnetes Innengewinde ausgebildet wird. Gemäß einer Ausführungsform weisen das Außengewinde 240 und das Innengewinde 340 spiralförmige Gewindegänge auf, sodass das Antriebsglied 125 in den Antriebskörper 300 einschraubbar ist. Es wird jedoch darauf hingewiesen, dass die Beschreibung spiralförmiger Gewindegänge lediglich beispielhaften Charakter hat und nicht zur Einschränkung der Erfindung dient. Diese kann vielmehr bei unterschiedlichen Gewindetypen Anwendung finden, z. B. bei Gewinden mit konzentrischen Ringen, wie z. B. unten bei
Um ein Ausschrauben des Antriebsglieds 125 aus dem Antriebskörper 300 zu verhindern, z. B. im Reversierbetrieb der Handwerkzeugmaschine 100 von
Gemäß einer Ausführungsform ist die Abtriebswelle 400 über ein Gleitlager 280 drehbar im Schlagwerkgehäuse 220 gelagert und hat beispielhaft einen mit einer Ringschulter 255 versehenen Wellenkörper 250. An diesem sind mindestens ein und illustrativ zwei Abtriebsnocken 412, 414 ausgebildet, sowie die Werkzeugaufnahme 450 von
Die Abtriebswelle 400 wird gemäß einer Ausführungsform zumindest abschnittsweise von dem Antriebskörper 300 umschlossen. Dieser ist beispielhaft topfartig ausgebildet und weist an einem ersten axialen Ende 351 eine Topfbodenähnliche Wand 350 auf, die mit einer Öffnung 360 versehen ist. Diese bildet illustrativ einen Ringkragen 254 aus. An seinem gegenüberliegenden axialen Ende 352 weist der topfartige Antriebskörper 300 eine Öffnung 305 auf, an der die Gegenbefestigungsvorrichtung 340 ausgebildet ist. Illustrativ hat der topfartige Antriebskörper 300 die Innenwand 320 und bildet einen Hohlraum 310 aus, in dem der Wellenkörper 250 mit den beiden Abtriebsnocken 412, 414 der Abtriebswelle 400 bis zu der an dieser vorgesehenen Ringschulter 255 angeordnet ist, sodass die Abtriebswelle 400 drehbar, aber axial unbeweglich im Antriebskörper 300 angeordnet ist. Hierbei liegt die Ringschulter 255 beispielhaft gegen den am Antriebskörper 300 ausgebildeten Ringkragen 254 an. Darüber hinaus ist innerhalb des Hohlraums 310 auf der Abtriebswelle 400 beispielhaft der Schlagkörper 500 drehbar und axial verschiebbar angeordnet.The
Der Schlagkörper 500 ist beispielhaft topfartig ausgebildet und hat eine Außenwand 510 und eine Bodenwand 550, die einen Innenraum 560 ausbilden. In der Bodenwand 550 ist eine Öffnung 599 ausgebildet, durch die der Wellenkörper 250 der Abtriebswelle 400 durchgreift. Der Schlagkörper 500 wird von einem ebenfalls in dem Hohlraum 310 angeordneten Federelement 242 in Richtung der Abtriebsnocken 412, 414 beaufschlagt. Diese Richtung der Abtriebsnocken 412, 414 entspricht einer von der Werkzeugaufnahme 450 weg weisenden axialen Richtung der Abtriebswelle 400 die beispielhaft mit 244 gekennzeichnet ist. Hierzu ist das z. B. als Druckfeder ausgebildete Federelement 242 bevorzugt zwischen dem Ringkragen 254 bzw. der Topfboden-ähnlichen Wand 350 des Antriebskörpers 300 und der Bodenwand 550 des Schlagkörpers 500 angeordnet, wobei das Federelement 242 den Innenraum 560 des Schlagkörpers 500 durchgreift. Es wird darauf hingewiesen, dass gemäß der vorliegenden Erfindung der Schlagkörper 500 von dem Federelement 242 in die Richtung 244 beaufschlagt ist, d. h. in eine Richtung, die einer entsprechenden Vortriebsrichtung der Handwerkzeugmaschine 100 von
Gemäß einer Ausführungsform ist der Schlagkörper 500 über mindestens eine Mitnehmerkugel am Antriebskörper 300 abgestützt. Illustrativ ist der Schlagkörper 500 über zwei Stahlkugeln 290, 295 am Antriebskörper 300 abgestützt. Hierzu ist an der Innenwand 320 des Antriebskörpers 300 mindestens eine nutartige Aussparung zur Führung der mindestens einen Mitnehmerkugel ausgebildet. Illustrativ ist eine bevorzugt V-förmige nutartige Aussparung 330 zur Führung der Stahlkugel 290 und eine bevorzugt V-förmige nutartige Aussparung 335 zur Führung der Stahlkugel 295 vorgesehen, die nachfolgend auch als "V-Nuten" bezeichnet werden. An der Außenwand 510 des Schlagkörpers 500 ist mindestens eine Vertiefung bzw. Aussparung zur Lagerung der mindestens einen Mitnehmerkugel ausgebildet. Illustrativ ist eine Vertiefung bzw. Aussparung 530 zur Lagerung der Stahlkugel 290 und eine Vertiefung bzw. Aussparung 535 zur Lagerung der Stahlkugel 295 ausgebildet. Die Stahlkugeln 290, 295 sind im Schlagbetrieb des mechanischen Schlagwerks 200 in den V-Nuten 330, 335 und den Vertiefungen bzw. Aussparungen 530, 535 beweglich, um eine Verdrehung des Schlagkörpers 500 relativ zur Abtriebswelle 400 und relativ zum Antriebskörper 300 zu ermöglichen. Die Funktionsweise eines V-Nuten-Drehschlagwerks ist jedoch prinzipiell aus dem Stand der Technik bekannt, sodass hier auf eine eingehende Beschreibung der Funktionsweise des Schlagwerks 200 verzichtet wird.According to one embodiment, the
Gemäß einer Ausführungsform ist der Gewindeverbindung 199 zur drehfesten Verankerung des Antriebsglieds 625 im Antriebskörper 300 eine Verdrehsicherung 640 zugeordnet, die dazu ausgebildet ist, ein Verdrehen des Antriebsglieds 625 relativ zum Antriebskörper 300 zu verhindern. Die Verdrehsicherung 640 hat illustrativ mindestens zwei Fixierbolzen 643, 645, über die die konzentrischen Ringe 345 des Antriebskörpers 300 im drehfesten Eingriff mit den konzentrischen Ringen 445 des Antriebsglieds 625 stehen. Die Fixierbolzen 643, 645 sind beispielhaft dazu ausgebildet, ein Ausschrauben des Antriebsglieds 625 aus dem Antriebskörper 300 zu verhindern. Hierzu können die Fixierbolzen 643, 645 das Antriebsglied 625 bzw. dessen Planetenträger 607 z. B. im Antriebskörper 300 in radialer und axialer Richtung verklemmen.According to one embodiment, the threaded
Claims (14)
- Hand-held power tool (100) having a mechanical percussion unit (200) which has a percussion body (500), which is provided with at least one drive cam (512, 514), and an output shaft (400) which is provided with at least one output cam (412, 414) and is connected to a tool holder (450) for holding a tool (140), the drive cam (512, 514) being configured for the percussion drive of the output cam (412, 414) during percussion operation of the mechanical percussion unit (200), characterized in that the output shaft (400) can be driven by a cup-like drive body (300) which encloses the output shaft (400) and the percussion body (500) at least in sections and is connected via a threaded connection (199) to a drive member (125) which can be driven by an associated gear mechanism (118).
- Hand-held power tool according to Claim 1, characterized in that the threaded connection (199) is assigned an anti-rotation safeguard (640) for the rotationally fixed anchoring of the drive member (625) in the drive body (300), which anti-rotation safeguard (640) is configured to prevent rotation of the drive member (625) relative to the drive body (300).
- Hand-held power tool according to Claim 1 or 2, characterized in that, in order to configure the threaded connection (199) which is anchored in a rotationally fixed manner, a fastening apparatus (240) with concentric rings (445) is configured on the drive body (300) and a mating fastening apparatus (340) with concentric rings (345) is configured on the drive member (625).
- Hand-held power tool according to Claim 3, characterized in that at least two fixing bolts (643, 645) are provided, via which the concentric rings (345) of the drive body (300) are in rotationally fixed engagement with the concentric rings (445) of the drive member (625).
- Hand-held power tool according to Claim 4, characterized in that the at least two fixing bolts (643, 645) are configured for preventing the drive member (625) from being unscrewed out of the drive body (300).
- Hand-held power tool according to one of the preceding claims, characterized in that the drive member (125) is supported on an annular disc (247) which is mounted axially immovably in the drive body (300).
- Hand-held power tool according to Claim 6, characterized in that the annular disc (247) is mounted downstream of the drive member (125) and is configured for preventing the drive member (125) from being unscrewed out of the drive body (300).
- Hand-held power tool according to one of the preceding claims, characterized in that the gear mechanism (118) is configured as a planetary gear mechanism, the drive member (125) forming a planetary carrier (207) which is assigned to the planetary gear mechanism.
- Hand-held power tool according to Claim 8, characterized in that the drive member (125) has recesses (452, 454) for receiving planetary gears (204, 205) of the planetary gear mechanism (118).
- Hand-held power tool according to one of the preceding claims, characterized in that the drive member (125) is mounted via an associated bearing element (214) in a gear mechanism housing (119) which is assigned to the gear mechanism (118).
- Hand-held power tool according to one of the preceding claims, characterized in that the cup-like drive body (300) forms a cavity (310), in which the percussion body (500) is arranged axially displaceably on the output shaft (400).
- Hand-held power tool according to Claim 11, characterized in that the percussion body (500) is loaded in the direction of the output cams (412, 414) by a spring element (242) which is arranged in the cavity (310), the direction of the output cams (412, 414) corresponding to an axial direction (244) of the output shaft (400), which axial direction (244) points away from the tool holder (450).
- Hand-held power tool according to one of the preceding claims, characterized in that the percussion body (500) is supported via at least one steel ball (290, 295) on the drive body (300).
- Mechanical percussion unit (200) for a hand-held power tool (100), having a percussion body (500), which is provided with at least one drive cam (512, 514), and an output shaft (400) which is provided with at least one output cam (412, 414) and is connected to a tool holder (450) for holding a tool (140), the drive cam (512, 514) being configured for the percussion drive of the output cam (412, 414) during percussion operation of the mechanical percussion unit (200), characterized in that the output shaft (400) can be driven by a cup-like drive body (300) which encloses the output shaft (400) and the percussion body (500) at least in sections and is connected via a threaded connection (199) to a drive member (125) which can be driven by a gear mechanism (118) which is assigned to the hand-held power tool (100).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102010043099A DE102010043099A1 (en) | 2010-10-29 | 2010-10-29 | Hand tool with a mechanical percussion |
PCT/EP2011/067780 WO2012055700A1 (en) | 2010-10-29 | 2011-10-12 | Hand machine tool comprising a mechanical striking mechanism |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2632642A1 EP2632642A1 (en) | 2013-09-04 |
EP2632642B1 true EP2632642B1 (en) | 2014-07-23 |
Family
ID=45406955
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11771084.8A Not-in-force EP2632642B1 (en) | 2010-10-29 | 2011-10-12 | Hand machine tool comprising a mechanical striking mechanism |
Country Status (5)
Country | Link |
---|---|
US (1) | US20140027140A1 (en) |
EP (1) | EP2632642B1 (en) |
CN (1) | CN103167935A (en) |
DE (1) | DE102010043099A1 (en) |
WO (1) | WO2012055700A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102017211779A1 (en) * | 2016-07-11 | 2018-01-11 | Robert Bosch Gmbh | Hand machine tool device |
WO2021041829A1 (en) * | 2019-08-29 | 2021-03-04 | Milwaukee Electric Tool Corporation | Gear assembly for a power tool |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE347685B (en) * | 1970-01-14 | 1972-08-14 | Atlas Copco Ab | |
DE2313402A1 (en) * | 1973-03-17 | 1974-09-26 | Bosch Gmbh Robert | ROTARY IMPACT TOOL |
US4489792A (en) * | 1981-05-28 | 1984-12-25 | Fahim Atef E F | Hammer drill adapter |
SE459327B (en) * | 1984-12-21 | 1989-06-26 | Atlas Copco Ab | HYDRAULIC TORQUE PULSE |
JPH0763938B2 (en) * | 1988-03-26 | 1995-07-12 | 信濃空圧工業株式会社 | Impact clutch |
US5199505A (en) * | 1991-04-24 | 1993-04-06 | Shinano Pneumatic Industries, Inc. | Rotary impact tool |
SE509915C2 (en) * | 1997-06-09 | 1999-03-22 | Atlas Copco Tools Ab | Hydraulic torque pulse generator |
DE19821554B4 (en) * | 1998-05-14 | 2006-02-16 | Hilti Ag | Drill with impact mechanism |
JP4008865B2 (en) * | 2003-08-01 | 2007-11-14 | 株式会社東洋空機製作所 | Fastener |
JP4084319B2 (en) * | 2004-02-23 | 2008-04-30 | リョービ株式会社 | Electric tool |
JP4643298B2 (en) * | 2005-02-14 | 2011-03-02 | 株式会社マキタ | Impact tool |
DE202006014850U1 (en) | 2006-09-27 | 2006-11-23 | Robert Bosch Gmbh | Mechanical beater for manual machine tool has impact body mounted axially movable and rotationally secured on drive shaft and an elastomer axial stop as ring-shaped spring element also mounted on drive shaft |
JP5270197B2 (en) * | 2008-03-10 | 2013-08-21 | 株式会社マキタ | Impact tool |
JP2009226568A (en) * | 2008-03-25 | 2009-10-08 | Makita Corp | Impact tool |
JP5583500B2 (en) * | 2010-07-05 | 2014-09-03 | 株式会社マキタ | Impact tool |
JP2016055401A (en) * | 2014-09-12 | 2016-04-21 | パナソニックIpマネジメント株式会社 | Impact rotary tool |
-
2010
- 2010-10-29 DE DE102010043099A patent/DE102010043099A1/en not_active Withdrawn
-
2011
- 2011-10-12 WO PCT/EP2011/067780 patent/WO2012055700A1/en active Application Filing
- 2011-10-12 US US13/882,422 patent/US20140027140A1/en not_active Abandoned
- 2011-10-12 EP EP11771084.8A patent/EP2632642B1/en not_active Not-in-force
- 2011-10-12 CN CN2011800526717A patent/CN103167935A/en active Pending
Also Published As
Publication number | Publication date |
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CN103167935A (en) | 2013-06-19 |
EP2632642A1 (en) | 2013-09-04 |
WO2012055700A1 (en) | 2012-05-03 |
US20140027140A1 (en) | 2014-01-30 |
DE102010043099A1 (en) | 2012-05-03 |
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