EP3762180A1 - Handwerkzeugmaschine - Google Patents

Handwerkzeugmaschine

Info

Publication number
EP3762180A1
EP3762180A1 EP19703079.4A EP19703079A EP3762180A1 EP 3762180 A1 EP3762180 A1 EP 3762180A1 EP 19703079 A EP19703079 A EP 19703079A EP 3762180 A1 EP3762180 A1 EP 3762180A1
Authority
EP
European Patent Office
Prior art keywords
locking
tool
unit
insert
receptacle
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.)
Pending
Application number
EP19703079.4A
Other languages
German (de)
English (en)
French (fr)
Inventor
Jens Blum
Dietmar Saur
Tobias Herr
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP3762180A1 publication Critical patent/EP3762180A1/de
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25BTOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B23/00Details of, or accessories for, spanners, wrenches, screwdrivers
    • B25B23/0007Connections or joints between tool parts
    • B25B23/0035Connection means between socket or screwdriver bit and tool
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25BTOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B19/00Impact wrenches or screwdrivers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25BTOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B21/00Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose
    • B25B21/02Portable 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25FCOMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
    • B25F5/00Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
    • B25F5/02Construction of casings, bodies or handles

Definitions

  • the present invention relates to a hand tool according to the preamble of claim 1.
  • EP 2 771 151 B1 already discloses a hand-held power tool with a drive motor, with a gear, with a percussion mechanism and with an output shaft, wherein a tool receptacle is formed on the output shaft.
  • the tool holder has a polygonal inner receptacle and a polygonal outer receptacle, wherein the polygonal female receptacle is designed for connection to an insertion tool.
  • the tool holder is associated with a locking device, wherein the insert tool can be locked by means of the locking device.
  • the present invention is based on a handheld power tool with a drive unit and with an output shaft on which a tool receptacle is formed, which has a polygonal inner receptacle for connection to a first insert tool and a polygonal external receptacle for connection to a second insert receptacle.
  • tool has.
  • the tool holder is associated with a locking unit for locking the first insert tool.
  • the locking unit comprises at least one locking element, wherein the locking element has at least one contact surface which axially supports the second insertion tool.
  • the drive unit comprises at least one drive motor and, in one embodiment, may have at least one transmission.
  • the drive motor can be designed in particular as at least one electric motor.
  • the transmission may be formed as at least one planetary gear, it may be switchable, for example.
  • the invention can also be applied to other types of engines or types of transmissions.
  • the power tool comprises a power supply, wherein the power supply for a battery operation by means of batteries, in particular Hand Wegmaschinenakkupacks, and / or is provided for a network operation.
  • the power supply is designed for battery operation.
  • a "hand tool machine battery pack" is to be understood as an association of at least one battery cell and one battery pack housing.
  • the handheld power tool battery pack is advantageously designed for the power supply of commercially available battery operated handheld power tools.
  • the at least one battery cell may be formed, for example, as a Li-ion battery cell with a nominal voltage of 3.6 V.
  • the handheld power tool battery pack can comprise up to ten battery cells, wherein a different number of battery cells is also conceivable.
  • An embodiment as a battery-powered portable power tool as well as the operation as a mains-operated power tool are known to those skilled enough, so it is not discussed here on the details of the power supply.
  • the drive unit is designed such that it can be actuated via the manual switch. If the manual switch is operated by a user, the drive unit is switched on and the hand tool machine is put into operation. If the user does not continue to operate according to the manual switch, the drive unit is switched off.
  • the drive unit is so electronically controlled and / or regulated that a reversing and a default for a desired rotational speed can be realized.
  • the manual switch is a latchable manual switch which can be latched in at least one position in at least one actuation state.
  • the hand tool is designed in particular as a rotary impact driver.
  • the rotary impact driver has at least one hammer mechanism, in particular a rotary impact mechanism.
  • the impact mechanism generates high torque during operation. ment tips to release so tight connection means or fasten fasteners.
  • the striking mechanism is connected to the drive motor by means of the gearbox. In addition, the impact mechanism is connected to the output shaft.
  • the tool holder has the polygonal inner receptacle for connection to the first insert tool.
  • the polygonal inner receptacle can be designed, for example, as a hexagon socket, so that the first insert tool can be received, for example, in the form of a screwdriver bit.
  • the tool holder includes the polygonal outer mount for connection to the second insert tool.
  • the polygonal outer receptacle can be formed, for example, as an outer quadrant receptacle. This makes it possible for example that the second insert tool can be received as a socket wrench.
  • a screwdriver bit or socket wrench is sufficiently known from the prior art, so that a detailed description is omitted here.
  • the tool holder is assigned the locking unit for locking the first insertion tool.
  • the locking unit has the locking element.
  • the locking element forms at least the contact surface, which axially supports the second insert tool.
  • the contact surface is formed on the locking element in the direction pointing away from the drive unit as at least one end face transverse to a tool axis. Acting, in particular axial, forces on the second insertion tool, during operation of the hand-held power tool, can be reliably introduced to the locking element via the contact surface in the housing. This allows a safe and reliable use of the second insert tool with the power tool.
  • the second insert tool rests reliably and reliably against the contact surface, independently of a manufacturer of the second insert tool.
  • the hand tool has the tool axis, wherein a further tool axis can be provided.
  • the tool axis can, for example, as be formed a rotation axis of the output shaft.
  • axial forces may occur, for example, when the second insert tool is connected to the polygonal outer receptacle or when a fastener axially, by means of the connected to the hand tool machine second insert tool is acted upon.
  • this occurs when the fastener is screwed or fastened in or on a mounting bracket or when the fastener is unscrewed or loosened.
  • the attachment means may be a screw, a nut or other similar threaded fasteners.
  • the mounting bracket may be a plastic mounting bracket, such as a wall, a metal workpiece, or other comparable mounting bracket.
  • the Befest Trentssträ- ger also elastic mounting support, such as a molded rubber.
  • a length of a rotary lug unit of not more than 140 mm, in particular a maximum of 130 mm, very particularly a maximum of 120 mm is proposed.
  • the turntable unit comprises the drive unit, at least the striking mechanism and the locking unit.
  • the length of the rotary lug unit is from a front end of the locking unit, in particular from the contact surface of the locking element, to a rear end of a motor shaft of the drive unit a maximum of 140 mm, in particular 130 mm, most preferably 120 mm.
  • the locking element locks the first insert tool radially and the second insert tool abuts axially against the locking element.
  • the radial locking of the first insert tool for example the screwdriver bit, achieves a secure and reliable fixation during the operation of the manual machine tool.
  • the locking element engages in an at least partially circumferential groove of the first insert tool and thereby locks the first insert tool in the polygonal inner receptacle of the craft generating machine.
  • the second insertion tool for example the socket wrench
  • the second insert tool has at least one connecting element for connection to the polygonal outer receptacle.
  • the connecting element may be formed at a rear end of the second insert tool.
  • the second insert tool In a connected state of the second insert tool with the polygonal outer receptacle, the second insert tool abuts against the abutment surface. The second insert tool is then in direct and direct contact with the locking element. As a result, the second insertion tool can absorb the axial forces and forward them to the locking element by means of the contact surface. The forwarding of the axial forces takes place here safely and reliably, in particular independently of a configuration of the connecting element of the second insertion tool.
  • the locking unit has at least one fixing element on which the locking element rests and guides the axial forces in the output shaft.
  • the fixing element is arranged in one embodiment on the output shaft and connected to this form-fitting and / or non-positively.
  • the fixing element may in this case be, for example, a C-ring, a pin, a bolt or other comparable fixing elements.
  • the output shaft has at least one receptacle for receiving the fixing element.
  • the receptacle can be designed, for example, as at least one recess, an at least partially encircling groove, as a passage opening or as a further comparable receptacle.
  • the locking element lies directly and directly axially against the fixing element. In this case, the axial forces that were absorbed by the second insertion tool can then be forwarded directly and directly to the fixing element.
  • the locking unit comprises at least one restoring element, in particular a spring element.
  • the restoring element bears, in particular axially, against the fixing element.
  • the restoring element returns at least the locking element from an unlocking position in which the first insertion tool can be unlocked to a locking position in which the first insertion tool can be locked.
  • the restoring element is connected to the output shaft, in particular axially, orderly.
  • the output shaft can receive the restoring element and store it in such a way that the restoring element can be moved axially.
  • the restoring element can be designed, for example, as a spring element, in particular a spiral spring, wherein other comparable return elements are also conceivable.
  • the restoring element is supported directly and directly on the fixing element.
  • the restoring element is indirectly supported on the locking element via a support element. At least the restoring element causes the locking element to be displaced from the unlocking position into the locking position.
  • the return element ensures that the locking element is biased in the locking position.
  • the locking element is moved, in particular by the user.
  • the locking element is moved in the direction away from the drive unit. It is also conceivable that, for unlocking, the locking element is moved in a direction pointing toward the drive unit.
  • the locking unit has at least one support element, in particular a support plate, against which rest the restoring element and the locking element.
  • the support element is designed to support at least the return element and the locking element.
  • the support element is arranged on the output shaft and can be moved axially relative to the output shaft.
  • the support element may have at least one receptacle for receiving the output shaft, the restoring element and / or the locking element.
  • the support element may have a passage opening as a receptacle for the output shaft.
  • the support element comprises at least one first support surface for supporting the return element. The restoring element abuts axially on the support element and is acted upon by the return element.
  • the support element also has at least one second support surface for supporting the locking element.
  • the second support surface receives the locking element, so that the locking element rests axially on the support element.
  • the support element acts on the locking element axially. If the locking element is displaced from the locking position into the unlocking position, the support element is moved substantially into the same directional position. postponed.
  • the locking element and the support element perform a coupled movement.
  • the support element may be, for example, annular or star-shaped, but also comparable embodiments are conceivable.
  • the support element in particular the support plate, cup-shaped.
  • the first support surface is arranged offset axially and radially relative to the second support surface.
  • first support surface is arranged offset relative to the second support surface radially or axially offset.
  • the locking unit has at least one actuating element, which receives the locking element, in particular a form-fitting manner.
  • the actuating element is formed as an actuating sleeve.
  • the actuator is adapted to be operated by the user.
  • the user can move the locking element from the locking position to the unlocking position by actuating the actuating element.
  • the actuating element has an outer grip area which the user can grasp.
  • the actuating element may be formed heat-insulating, so that a small, in particular substantially no, heat exchange between the locking element and the actuating element is made possible. This then allows the user to touch the actuator, regardless of a period of use of the power tool.
  • the Actuate transmission element at least one bearing element, in particular a bearing rib, at least for the storage of the locking element.
  • the actuating element frictionally receives the support element.
  • the actuator snap hooks or a bayonet receiving have to produce the non-positive connection.
  • the actuating element has an at least partially circumferential collar and the locking element has an at least partially circumferential collar. se circulating paragraph on.
  • the heel lies axially against the collar.
  • the collar is arranged in one embodiment in a direction away from the drive unit direction.
  • the collar and the actuating element can be formed in one piece.
  • the shoulder is formed in one embodiment on the locking element.
  • the collar and the heel are fitting, in particular complementary, to one another, so that they can be positively connected to one another.
  • the collar is shaped such that the shoulder abuts the collar axially and the locking member is substantially axially movable when the actuator is moved axially.
  • it is conceivable that the collar and the heel are non-positively connected.
  • the locking element projects beyond the actuating element at least partially in an axial direction pointing away from the drive unit.
  • the locking element then forms at least one partially circumferential shoulder to the actuating element. This ensures that the contact surface of the locking element is at least partially offset relative to the actuating element. This allows the second insert tool to be securely and reliably applied to the contact surface.
  • the section of the locking element avoids direct contact with the second insertion tool, in particular the connecting element of the second insertion tool, and the actuating element.
  • the support element and the actuating element preferably form a clamping connection by means of a fastening element of the locking unit.
  • a fastening element of the locking unit preferably a bolt, a screw, or other comparable fasteners.
  • the actuating element at least partially receives the fastening element for forming the clamping connection, the fastening element resting against the supporting element.
  • the fastening element is accommodated by the actuating element in a positive and / or non-positive manner.
  • the support element can then be clamped by means of the fastening element to the actuating element and the locking element.
  • the fastening element can hold the supporting element on the actuating element and at the same time fix the supporting element to the locking element.
  • the locking unit in particular the actuating element, has at least one fixing element which fixes the fastening element, in particular axially.
  • the fixing element may be formed as at least one projection, a hook or the like. By way of example, one, three, six or more than six fixing elements may be formed on the actuating element.
  • the actuating element has at least one first inner receptacle for receiving the locking element, a second inner receptacle for receiving the support element and a third inner receptacle for receiving the fastening element.
  • the locking element is suitable, in particular complementary, formed to the first inner receptacle.
  • the first inner receptacle receives the locking element in a form-fitting and / or force-locking manner.
  • the second interior photograph additionally comprises an at least partially surrounding paragraph.
  • the support element is suitable, in particular complementary, formed to the second inner receptacle.
  • the second inner receptacle can receive the support element in positive and / or non-positive locking, with the support element additionally being able to rest against the heel.
  • the support element bears radially as well as axially by means of the second inner receptacle on the actuating element.
  • the fastening element is suitable, in particular complementary, to the third inner receptacle.
  • the third interior receives the fastener positively and / or non-positively.
  • the locking element has at least one locking body, wherein the locking element locks the locking body.
  • the locking element is at least axially and the locking body at least radially movable.
  • the locking element locks the locking body in one embodiment in the locking position.
  • the locking body locks the first insertion tool in the locking position.
  • the locking member is moved axially to the unlocking position, the locking body is unlocked.
  • the locking body can be moved radially in one embodiment, and the first insertion tool can be removed from the polygonal inner receptacle.
  • the locking element is designed as a locking ring and the locking body as at least one locking pin. It is also conceivable that the locking body is formed as at least one locking bolt or a locking ball.
  • FIG. 1 shows a schematic view of a hand tool machine according to the invention with a tool holder
  • FIG. 2 is a sectional view of the tool holder of the craft machine
  • FIG. 3 shows an exploded view of the tool holder of the hand-held power tool
  • Fig. 4a is a perspective view of a locking element
  • 4b is a perspective view of a support element
  • 4c is a perspective view of an actuating element
  • FIG. 5 shows a sectional view of the tool holder with a second insert tool
  • Fig. 1 shows a hand tool 100 according to the invention, wherein it is designed here as an exemplary cordless impact wrench.
  • the hand tool 100 comprises an output shaft 124, a tool holder 150 and an exemplary percussion mechanism 122, e.g. a rotary or rotary impact mechanism.
  • the machine tool 100 has a housing 1 10 with a handle 126.
  • the hand-held power tool 100 can be mechanically and electrically connected to a power supply independent of the power supply for a battery operation so that the power tool 100 is designed as a battery-powered hand tool 100.
  • the present invention is not limited to battery-operated hand-held power tools, but can also be used in network-dependent, ie mains operated, handheld power tools or pneumatically operated hand tooling machines.
  • the hand tool 100 comprises a tool axis 134.
  • the tool axis 134 is here designed as a rotation axis 136 of the output shaft 124.
  • the housing 1 10 illustratively comprises a drive unit 11 and the percussion mechanism 122.
  • the drive unit 11 1 further comprises an electric drive motor 1 14, which is supplied with power by the handheld power tool battery pack 130, and a transmission 1 18.
  • the transmission 1 18 can be formed as at least one planetary gear.
  • the drive motor 1 14 is designed such that it can be actuated, for example via a manual switch 128, so that the drive motor 1 14 is switched on and off.
  • the drive motor 14 can be any type of motor, such as an electronically commutated motor or a DC motor.
  • the drive motor 1 14 is electronically controlled and / or regulated, so that a reversing operation, and a desired rotational speed, can be realized.
  • the construction and the The operation of a suitable drive motor is well known to the person skilled in the art, which is why it will not be discussed in more detail here.
  • the transmission 1 18 is connected to the drive motor 1 14 via a motor shaft 1 16.
  • the transmission 1 18 is provided to convert a rotation of the motor shaft 1 16 in a rotation between the transmission 1 18 and the striking mechanism 122 via a drive member 120, for example a drive shaft. Preferably, this conversion is made such that the drive member 120 rotates relative to the motor shaft 116 with increased torque but at a reduced rotational speed.
  • a motor housing 1 15 is associated with the drive motor 14, and a transmission housing 1 19 is associated with the transmission 18.
  • the motor housing 15 and the transmission housing 19 are arranged in the housing 110, for example. However, it is also conceivable that the drive motor 1 14 and the transmission 1 18 can be arranged directly in the housing 1 10, when the power tool 100 is formed in an "open frame" design.
  • the percussion gear 122 is connected to the drive member 120 and includes, for example, a striking body 125 which generates high-speed abrupt turning pulses. About the impactor 125, these sudden angular momentum on the output shaft 124, such as a work spindle, transmitted.
  • the percussion mechanism 122 comprises a percussion mechanism housing 123, see FIG. 3, wherein the percussion mechanism 122 can also be arranged in another suitable housing, such as, for example, the transmission housing 1 19.
  • the exemplary striking mechanism 122 is designed to drive the output shaft 124.
  • a tool holder 150 is provided on the output shaft 124.
  • the tool holder 150 is formed on the output shaft 124 and / or formed.
  • the tool holder 150 is arranged in a direction away from the drive unit 1 1 1, axial direction 132.
  • the tool holder 150 is assigned a locking unit 160 for locking a first insertion tool 140.
  • the output shaft 124 is formed integrally with the tool holder 150.
  • the tool holder 150 comprises a polygonal inner receptacle 152 for connection to the first insert tool 140, see also FIGS. 2 and 3.
  • the tool holder comprises 150 is a polygonal outer receptacle 156 for connection to a second insert tool 144, see also Figs. 2, 3 and 5.
  • the polygonal inner receptacle 152 is formed in the embodiment of this type of bit holder with a hexagon socket 154 and adapted to to receive first insert tool 140 in the manner of a screwdriver bit.
  • the first insert tool 140 has for this purpose a mating outer hexagon coupling 142.
  • the type of screwdriver bit for example, HEX type, the skilled person is well known. However, the present invention is not limited to the use of HEX screwdriver bits, but also other, appear to be reasonable expert first use tools can be used, such as HEX drill or SDS Quick insert tools.
  • the polygonal outer receptacle 156 is formed in this embodiment as a whovierkantness 158.
  • the external square receptacle 158 is designed to receive second insertion tools 144 with an internal square receptacle 146, such as a socket wrench. Such a socket with square socket is sufficiently known from the prior art.
  • the hand tool 100 has a length of a rotary lobe unit of a maximum of 140 mm, in particular a maximum of 130 mm, in particular a maximum of 120 mm.
  • the rotary lobe unit comprises the drive unit 1 1 1, the percussion mechanism 122 and the locking unit 160.
  • the length of the rotary lobe unit is from a front end of the locking unit 160 to a rear end 1 17 of the motor shaft 1 16 of the drive unit 1 1 1 maximum 140 mm, in particular 130 mm, very particularly 120 mm.
  • the front end of the locking unit 160 is a contact surface 168 of a locking element 162.
  • FIG. 2 shows a sectional view of the tool holder 150 of the handheld power tool 100 according to the invention.
  • the output shaft 124 according to this embodiment has an axial extension 220.
  • This is preferably formed on the tool holder 150 and formed integrally with this in this embodiment.
  • the axial extension 220 has a preferably elastically deformable retaining element 222.
  • This illustratively comprises a fixing member 224, which is preferably designed as an elastically deformable metal C-ring.
  • the locking unit 160 has the locking element 162, see also Fig. 4a.
  • the locking element 162 comprises at least one locking body 166, see also FIG. 3.
  • the locking element 162 is formed in this embodiment as a locking ring 164.
  • the locking body 166 is formed as a locking pin, wherein the locking unit 160 comprises two locking pins, see also FIG. 3.
  • the locking member 162 cooperates with the locking body 166, wherein the locking body 166 is stored radially displaceable.
  • the locking element 162 locks the locking body 166 so that the first insertion tool 140 is locked via the locking body 166 in the polygonal inner receptacle 152.
  • the locking element 162 unlocks the locking body 166, so that it is radially movable.
  • the first insert tool 140 can be removed from the polygonal inner receptacle 152.
  • the locking element 162 comprises the abutment surface 168 against which the second insertion tool rests.
  • the abutment surface 168 is formed on the locking element 162 in the axial direction 132 pointing away from the drive unit 11, and is formed by an end face of the locking element 162.
  • the second insertion tool 144 bears against the abutment surface 168 of the locking element 162.
  • the locking element 162 has a section 165 which projects beyond the actuating element 190 partially in the axial direction 132 pointing away from the drive unit 11.
  • the locking unit 160 comprises a fixing element 170 against which the locking element 162 rests. As a result, axial forces that has received the locking element 162, passed into the output shaft 124. The locking element 162 abuts the fixing element 170 directly and directly axially.
  • the fixing member 170 is formed as a metal C-ring.
  • the fixing element 170 is arranged on the output shaft 124 and connected to this form-fitting manner.
  • the output shaft 124 includes a receptacle 172 for receiving the fixing element 170.
  • the receptacle 172 is formed as a circumferential groove.
  • the locking unit 160 also has a return element 174, which is designed here as a spiral spring.
  • the restoring element 174 lies axially against the fixing element 170. In this case, the restoring element 174 acts on the fixing element 170 axially.
  • the return element 174 is movably arranged on the output shaft 124, wherein the output shaft 124 receives the return element 174.
  • the locking unit 160 comprises a support element 180 against which the reset element 174 and the locking element 162 abut.
  • the support element 180 supports the return element 174 and the locking element 162.
  • the support element 180 is designed as a support plate. Further, the support member 180 is disposed on the output shaft 124 and axially movable relative to the output shaft 124.
  • the support element 180 comprises receptacles 182, 184, 186 for receiving the output shaft 124, the restoring element 174 and the locking element 162, see also FIG. 4b.
  • the receptacle 182 of the support member 180 for the output shaft 124 is formed as a passage opening 183, see also Fig. 4b.
  • the receptacle 184 of the support element 180 for the return element 174 is formed as a first support surface 185, see also FIG. 4b.
  • the receptacle 186 of the support element 180 for the locking element 162 is designed as a second support surface 187, see also FIG. 4b.
  • the support element 180 is cup-shaped, see also FIG. 4b.
  • the first support surface 185 is axially and radially offset relative to the second support surface 187, see also FIG. 4b.
  • the locking unit 160 comprises an actuating element 190, which receives the locking element 162 in a form-fitting manner.
  • the actuator 190 is formed as an actuating sleeve, see also Fig. 4c.
  • the actuator 190 includes an outer handle portion 192 that a user can grasp.
  • the actuating element 190 comprises bearing elements 194 which support the locking element 162 on the actuating element 190, see FIG. 4c.
  • the storage elements 194 are formed as storage ribs 196.
  • the actuating element 190 comprises a circumferential collar 198, see also Fig. 4c.
  • the locking element comprises 162 a circumferential shoulder 163, see also Fig. 4a.
  • the shoulder 163 abuts axially on the collar 198.
  • the collar 198 is formed integrally with the actuating element 190.
  • the shoulder 163 is formed on the locking element 162.
  • the collar 198 and the shoulder 163 are fitting, in particular complementary, formed to each other, so that they are positively connected to each other.
  • the locking unit 160 has a fastening element 200.
  • the supporting element 180 and the actuating element 190 form a clamping connection by means of the fastening element 200.
  • the fastener 200 is formed as a metal C-ring.
  • the support member 180 is clamped between the fastener 200 and the actuator 190.
  • the fastening element 200 fixes the support element 180 to the actuation element 190 so that the support element 180 bears against the actuation element 190.
  • the actuator 190 positively receives the fastener 200 to form the clamp connection.
  • the actuator 190 Fixie rimplantation 202 to fix the fastener 200 axially, see also Fig. 4c.
  • the fixing elements 202 are formed as 3 projections 204.
  • the actuating element 190 comprises a first inner receptacle 206 for receiving the locking element 162, a second inner receptacle 208 for receiving the support element 180 and a third inner receptacle 210 for receiving the fastening element 200, see also FIG. 4c.
  • the first inner receptacle 206 is formed as an inner receiving surface 207, wherein the first inner receptacle 206 additionally forms the storage elements 194.
  • the second inner receptacle 208 is formed as a circumferential groove. In addition, the second inner receptacle 208 forms a circumferential shoulder.
  • the support element 180 is received by the groove of the second inner receptacle 208 and bears against the shoulder of the second inner receptacle 208.
  • FIG. 3 shows an exploded view of the tool holder 150 with the locking unit 160 of the handheld power tool 100.
  • the output shaft 124 additionally includes a shaft seal 212, a sliding bearing 214 and an axial distance element 216.
  • FIG. 4a is a perspective view of the locking element 162, FIG. 4b showing a perspective view of the support element 180.
  • Fig. 4c is a perspective view of the actuator 190 is shown.
  • FIG. 5 shows a sectional view of the tool holder 150 in a connected state with the second insert 144.
  • the second insert tool 144 comprises a connection element 148.
  • the connection element 148 is formed at a rear end 149 of the second insertion tool 144. In the connected state, the second insertion tool 144 abuts directly against the abutment surface 168 of the locking element 162.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Portable Power Tools In General (AREA)
EP19703079.4A 2018-03-08 2019-02-04 Handwerkzeugmaschine Pending EP3762180A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102018203522.9A DE102018203522A1 (de) 2018-03-08 2018-03-08 Handwerkzeugmaschine
PCT/EP2019/052593 WO2019170332A1 (de) 2018-03-08 2019-02-04 Handwerkzeugmaschine

Publications (1)

Publication Number Publication Date
EP3762180A1 true EP3762180A1 (de) 2021-01-13

Family

ID=65278375

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19703079.4A Pending EP3762180A1 (de) 2018-03-08 2019-02-04 Handwerkzeugmaschine

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EP3900882A1 (de) * 2020-04-21 2021-10-27 Hilti Aktiengesellschaft Andrückelement für werkzeugmaschine
USD1014213S1 (en) * 2021-05-21 2024-02-13 Bosch Power Tools (China) Co., Ltd. Power hammer

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TW526107B (en) * 2000-08-14 2003-04-01 Maxtech Mfg Inc Quick-connect mechanism
DE102010030642A1 (de) * 2010-06-09 2011-12-15 Robert Bosch Gmbh Handwerkzeugmaschine mit einer Werkzeugaufnahme
DE202011107082U1 (de) * 2011-10-24 2012-04-03 Robert Bosch Gmbh Handwerkzeugmaschine
DE102013213804A1 (de) * 2012-11-22 2014-05-22 Robert Bosch Gmbh Werkzeugvorsatz für eine Handwerkzeugmaschine
DE102013203121A1 (de) * 2013-02-26 2014-08-28 Robert Bosch Gmbh Handwerkzeugmaschine mit einer Werkzeugaufnahme, die eine Mehrkant-Innenaufnahme und eine Mehrkant-Außenaufnahme aufweist
DE102013204782A1 (de) * 2013-03-19 2014-09-25 Robert Bosch Gmbh Handwerkzeugmaschine mit einer Werkzeugaufnahme, die eine Mehrkant-Innenaufnahme und eine Mehrkant-Außenaufnahme aufweist
KR101636689B1 (ko) * 2015-09-11 2016-07-07 이에스산업 주식회사 전동공구의 록킹 구조체
KR20170048899A (ko) * 2015-10-27 2017-05-10 주식회사 아임삭 비트 또는 소켓이 결합가능한 전동공구
CN207014254U (zh) * 2017-05-16 2018-02-16 庄惟捷 具锁定及释放功能的扭力套筒

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US20210252680A1 (en) 2021-08-19
WO2019170332A1 (de) 2019-09-12
CN111819034B (zh) 2022-10-28
CN111819034A (zh) 2020-10-23
KR102654990B1 (ko) 2024-04-08
KR20200130342A (ko) 2020-11-18
DE102018203522A1 (de) 2019-09-12

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