EP2655019B1 - Machine-outil à main - Google Patents

Machine-outil à main Download PDF

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Publication number
EP2655019B1
EP2655019B1 EP11796651.5A EP11796651A EP2655019B1 EP 2655019 B1 EP2655019 B1 EP 2655019B1 EP 11796651 A EP11796651 A EP 11796651A EP 2655019 B1 EP2655019 B1 EP 2655019B1
Authority
EP
European Patent Office
Prior art keywords
clutch housing
power tool
drilling
portable power
mode
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.)
Active
Application number
EP11796651.5A
Other languages
German (de)
English (en)
Other versions
EP2655019A1 (fr
Inventor
Joachim Hecht
Heiko Roehm
Martin Kraus
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
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Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP2655019A1 publication Critical patent/EP2655019A1/fr
Application granted granted Critical
Publication of EP2655019B1 publication Critical patent/EP2655019B1/fr
Active legal-status Critical Current
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D16/00—Portable percussive machines with superimposed rotation, the rotational movement of the output shaft of a motor being modified to generate axial impacts on the tool bit
    • B25D16/006—Mode changers; Mechanisms connected thereto
    • 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
    • B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
    • B25B23/14—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers
    • B25B23/141—Mechanical overload release couplings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D2211/00—Details of portable percussive tools with electromotor or other motor drive
    • B25D2211/06—Means for driving the impulse member
    • B25D2211/062—Cam-actuated impulse-driving mechanisms
    • B25D2211/064—Axial cams, e.g. two camming surfaces coaxial with drill spindle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D2216/00—Details of portable percussive machines with superimposed rotation, the rotational movement of the output shaft of a motor being modified to generate axial impacts on the tool bit
    • B25D2216/0007—Details of percussion or rotation modes
    • B25D2216/0023—Tools having a percussion-and-rotation mode
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D2216/00—Details of portable percussive machines with superimposed rotation, the rotational movement of the output shaft of a motor being modified to generate axial impacts on the tool bit
    • B25D2216/0007—Details of percussion or rotation modes
    • B25D2216/0038—Tools having a rotation-only mode
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D2216/00—Details of portable percussive machines with superimposed rotation, the rotational movement of the output shaft of a motor being modified to generate axial impacts on the tool bit
    • B25D2216/0084—Mode-changing mechanisms
    • B25D2216/0092—Tool comprising two or more collaborating mode-changing mechanisms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D2250/00—General details of portable percussive tools; Components used in portable percussive tools
    • B25D2250/165—Overload clutches, torque limiters

Definitions

  • the present invention relates to a hand machine tool according to the preamble of claim 1 for operation in percussion drilling, drilling and screwing mode, which has a mode setting device with an actuating element and an adjusting element and a gear for driving an output shaft, the actuating element and the adjusting element being rotationally fixed to one another are connected and the adjusting element is coupled at least in one operating mode to a transmission element which is mounted on a clutch housing assigned to the transmission and is axially displaceable in a screwing position assigned to the screwing mode on the clutch housing and in the percussion drilling and drilling mode assigned percussion drilling and drilling positions on the clutch housing is axially fixed.
  • Such a handheld power tool is, for example, from the EP 2 216 114 A2 out.
  • Such a hand-held power tool is known with a drive device provided for driving an output shaft, which has a drive unit and a gearbox coupled to the drive unit.
  • This handheld machine tool can be operated in various operating modes, which are an impact drilling, drilling and screwing mode. In the percussion drilling and drilling mode there is a fixed torque coupling between the output shaft and the drive device, whereas in the screwing mode a maximum of an adjustable torque can be transmitted.
  • a mode setting device is used to set the operating modes, which comprises a mode setting sleeve which can be rotated by manual actuation and a transmission element which is non-rotatably coupled to the mode setting sleeve and which is supported on a clutch housing assigned to the transmission.
  • the mode setting sleeve and the transmission element are rotatably mounted about the longitudinal axis of the output shaft, so that the transmission element also carries out corresponding rotary adjustment movements of the mode setting sleeve.
  • each of the different operating modes is assigned a predetermined rotational position of the mode setting sleeve and the transmission element.
  • a disadvantage of the prior art is that there is usually a predetermined axial play between the transmission element and the mode setting sleeve, which can increase due to wear over the life of the hand tool. It is therefore difficult to achieve a safe and precise mode setting over a comparatively long operating period of the hand tool.
  • a hand tool for operation in percussion drilling, drilling and screwing mode, which has a mode setting device with an actuating element and an adjusting element and a gear for driving an output shaft.
  • the actuating element and the adjusting element are connected to one another in a rotationally fixed manner, and the adjusting element is coupled, at least in one operating mode, to a transmission element which is mounted on a clutch housing assigned to the transmission and is axially displaceable in a screwing position assigned to the screwing mode on the clutch housing and in the percussion drilling and drilling mode assigned percussion drilling and drilling positions on the clutch housing is axially fixed.
  • the transmission element is non-rotatably connected to the clutch housing and a predetermined operating mode can be set by rotating the setting element. Adjustment element and transmission element can be rotated relative to one another and the adjustment element engages around the transmission element at least in sections.
  • the invention thus makes it possible to provide a hand-held power tool that can be realized with a reduced size and a reduced number of components and has a robust and reliable mode setting device in which different operating modes can be set reliably over a long operating period.
  • the transmission element is disc-shaped.
  • the transmission element preferably has fixing members, by means of which the transmission element is fixed in a rotationally fixed manner on the clutch housing.
  • the transmission element can thus be securely and reliably fixed in a rotationally fixed manner on the clutch housing.
  • the fixing members preferably have radially outward extensions by means of which the transmission element is axially fixed to the clutch housing in percussion drilling and drilling mode.
  • the transmission element can thus be axially fixed to the clutch housing in a simple manner in the percussion drilling and drilling mode.
  • the adjusting element is fixed substantially immovably on the clutch housing in the axial direction.
  • a simple and inexpensive adjusting element can thus be provided.
  • the fixing elements have holding elements which are designed to axially fix the adjusting element on the clutch housing.
  • the adjusting element can thus be fixed axially on the clutch housing in a simple manner.
  • the fixing elements preferably have blocking elements, via which the transmission element in the percussion drilling and drilling mode is axially fixed in the assigned percussion drilling or drilling position on the coupling housing, the blocking elements releasing the transmission element in the screwing mode in the axial direction.
  • the invention thus makes it possible to provide a mode setting device in which a path limitation or force absorption of a force introduced via the output shaft is made possible by the adjusting element in a simple manner.
  • a simple and reliable actuating element can thus be provided.
  • At least one spring element is provided which is designed to axially apply a predetermined spring force to the transmission element in the direction of the percussion drilling and drilling position.
  • the predefined spring force can preferably be set within predefined limits via an assigned torque setting device.
  • the transmission element 170 is disc-shaped in the manner of a pressure plate or a pressure ring and is therefore also referred to below in this way.
  • the pressure ring 170 illustratively has fixing members 177, 172, 173, 174 and 175-176 ( Fig. 4 and 5 ) and 471, 476 and 472-475, by means of which the pressure ring 170 is fixed to the clutch housing 130 in a rotationally fixed manner.
  • These have, for example, projections 177, 172, 173, 174 and 175-176 (directed radially outwards) ( Fig. 4 and 5 ) and radially inward, bead-like extensions 471, 476 and 472-475 ( 4 to 6 ) on.
  • the radially inward extensions 471, 476 and 472-475 ( 4 to 6 ) are in the axially aligned grooves 481, 486 and 482-485 ( 4 to 6 ) of the clutch housing 130 is arranged.
  • the radially outward projections 177, 172, 173, 174 and 175-176 each include an associated force transmission member 183, 185, 187 of the clutch housing 130.
  • the projections 172, 173 comprise the force transmission member 183.
  • the radially outward projections 177, 172, 173, 174 and 175-176 ( Fig.
  • the mode setting device 150 has, for example, an illustrative sleeve-shaped actuating element 155, which is therefore also referred to below as the actuating sleeve or mode-adjusting sleeve, and the adjusting element 110 which is non-rotatably connected to this, which is illustratively also sleeve-shaped and is also referred to below as the switching sleeve.
  • An exemplary attachment of the actuating sleeve 155 to the switching sleeve 110 via radial extensions (491, 493, 495 in.) Provided on the switching sleeve 110 4 to 6 ) is at 4 to 6 described.
  • the actuating sleeve 155 is rotatably mounted on the clutch housing 130 via the switching sleeve 110 about the longitudinal axis of the output shaft 140.
  • the operating modes impact drilling, drilling and screwing can be set by a corresponding rotation of the actuating sleeve 155 and thus of the switching sleeve 110.
  • blocking webs 111, 115 and 113 are designed as radially inward projections formed on the inner circumference of the switching sleeve 110.
  • the switching sleeve 110 When the switching sleeve 110 is mounted on the clutch housing 130, the switching sleeve 110 is pushed onto the clutch housing 130 in such a way that the holding webs 112, 114, 116 initially along the outer circumference of the pressure ring 170 through the interruptions 182, 184 and 186 ( Fig. 4 ) reach through. Then the switching sleeve 110 z. B. rotated clockwise so that the retaining webs 112, 114, 116 engage behind the ring collar 180 and thus in connection with the blocking webs 111, 115 and 113 ( 4 to 6 ) axially fix the switching sleeve 110 to the ring collar 180 in the manner of a bayonet connection.
  • a latching element is arranged between the switching sleeve 110 and the clutch housing 130, which enables the switching sleeve 110 to be locked in the assigned rotational positions on the clutch housing 130, these rotational positions being assigned to the different operating modes of the handheld power tool 100.
  • suitable latching elements are sufficiently known to the person skilled in the art, e.g. B. detent springs, so that for the sake of conciseness of the description, a detailed description of a specific detent element is dispensed with.
  • the torque setting device 160 illustratively has a torque setting sleeve 165 which is arranged downstream of the actuation or mode setting sleeve 155 in the axial direction of the output shaft 140 and can be actuated independently thereof or rotated about the longitudinal axis of the output shaft 140.
  • the maximum torque that can be transmitted by the handheld power tool 100 in the screwing mode can be set via the torque setting sleeve 165.
  • Fig. 2 shows a sectional view of the detail of the hand machine tool 100 of FIG Fig. 1 with the gear 120, the mode setting device 150, the torque setting device 160 and the output shaft 140, in which the cut is made approximately perpendicular to the sheet plane.
  • the transmission 120 is designed, for example, as a planetary transmission with three planetary stages. Since the basic structure and mode of operation of planetary gears are well known to the person skilled in the art are, for the sake of simplicity of description, a detailed description is omitted here.
  • the output shaft 140 is illustratively rotatably supported relative to the clutch housing 130 and the gear housing 122 via two axially spaced ball bearings 214, 215.
  • the output shaft 140 can also perform an axial actuating movement with respect to the clutch housing 130.
  • the second ball bearing 215 is axially fixedly connected to the output shaft 140 and is slidably mounted within a locking pot 216 fixed to the housing.
  • the first ball bearing 214 is arranged fixed to the housing in the clutch housing 130.
  • the output shaft 140 is adjusted between the percussion drilling position and the drilling or screwing position by the axial adjusting movement. In the percussion drilling position, the output shaft 140 - in Fig.
  • the detent 216 comes into detent engagement with a detent disc 217, which is seated in a rotationally fixed manner on the outer surface of the output shaft 140 and forms a detent mechanism with the detent 216.
  • the locking disk 217 also has the task of axially fixing the ball bearing 215, which is also seated on the outer surface of the output shaft 140.
  • a spring element 218 is arranged within the locking pot 216, which forces the output shaft 140 via a locking part 223 and the ball bearing 215 into an assigned, non-locking position, in which the locking pot 216 and the locking disc 217 are not in engagement.
  • the locking part 223 lies on the deactivation bars 118 and 117, 119 ( Fig. 1 ), so that the locking disc 217 is axially spaced from the bottom of the locking pot 216 and thus the locking mechanism of the hand tool 100 is deactivated. This deactivation is carried out in screw mode ( Fig. 4 ) and in drilling mode ( Fig. 5 ) realized. In percussion drilling mode ( Fig. 6 ) the locking part 223 is not on the deactivation bars 118 and 117, 119 ( Fig. 1 ) on, so that locking disc 217 and locking cup 216 can engage in locking engagement as described above.
  • Fig. 3 shows a sectional view of the detail of the hand machine tool 100 of FIG Fig. 1 with the gear 120, the mode setting device 150, the torque setting device 160 and the output shaft 140, in which the cut approximately in the plane of the sheet Fig. 1 is executed.
  • Fig. 3 illustrates an exemplary design of the as in Fig. 1 Described via a bayonet connection with the switching sleeve 110 connected to the clutch housing 130, the holding web 112 directed radially inwards illustratively engaging in an annular groove 399 which is provided in the region of the annular collar 180 of the clutch housing 130.
  • the radially outward projection 172 and a further radially outward projection 175 of the pressure ring 170 are shown.
  • the handheld power tool 100 has one of the spring retaining ring 213 and a plurality of spring elements 311, 314 and 312, 313, 315, 316 ( 4 to 6 ) trained spring device, which is designed to set a maximum transferable torque in the screwing mode of the hand power tool 100.
  • the spring elements 311, 314 and 312, 313, 315, 316 ( 4 to 6 ) are arranged on the clutch housing 130 distributed over the circumference and are designed, for example, as helical compression springs.
  • the spring elements 311, 314 and 312, 313, 315, 316 ( 4 to 6 ) between the spring retaining ring 213 and the pressure ring 170.
  • the spring retaining ring 213 is, for example, axially displaceable relative to the output shaft 140 and, when the torque setting sleeve 165 rotates, moves axially relative to the output shaft 140 due to the screw connection with the torque setting sleeve 165, as a result of which the prestressing of the spring elements 311, 314 and 312, 313, 315, 316 ( 4 to 6 ) changes which act on the pressure ring 170 with an axial force corresponding to the preload against the clutch housing 130. With increasing preload of the spring elements 311, 314 and 312, 313, 315, 316 ( 4 to 6 ) the axial force which is exerted on the pressure ring 170 thereby also increases.
  • the balls 389 are illustratively mounted in assigned openings 387 on the clutch housing 130 and are arranged in the axial direction of the output shaft 140 between an end face of the locking disk 391, on which a coupling structure 392 is formed, and the pressure ring 170.
  • a suitable coupling structure can, for example have a plurality of axial elevations and is sufficiently known to the person skilled in the art, so that for the sake of conciseness of the description there is no detailed description of the coupling structure 392.
  • the mode of operation of a suitable torque clutch is sufficiently known to the person skilled in the art, so that an in-depth description is also omitted here for the sake of conciseness of the description.
  • Fig. 4 shows a top perspective view of the clutch housing 130 of FIG 1 to 3 rotatably mounted output shaft 140 from 1 to 3 with the mode setting device 150 of 1 to 3 to illustrate a setting of the mode setting device 150 for an operation of the hand machine tool 100 of 1 to 3 in screw mode.
  • the actuating sleeve 155 and with this the switching sleeve 110 are rotated into a predetermined screwing position.
  • Fig. 4 on an image of the torque setting device 160 from 1 to 3 waived.
  • Fig. 4 a sectional view of clutch housing 130, shift sleeve 110 and pressure ring 170 of 1 to 3 shown, cut in the area of the blocking webs 111, 113, 115 of the switching sleeve 110 in order to illustrate the interaction of these components in the screwing mode.
  • the clutch housing 130 illustratively has an approximately central opening 499 for the passage of the output shaft 140.
  • Fig. 4 illustrates this in screw mode, as with Fig. 2 described, on the deactivation webs 117, 118, 119 of the switching sleeve 110 resting locking part 223 and the screws 221, 422, 423 screwed to the clutch housing 130 as an example.
  • clarified Fig. 4 an exemplary rotationally fixed connection of the switching sleeve 110 to the actuating sleeve 155 via radial extensions 491, 493, 495 provided on the outer circumference of the switching sleeve 110, which illustratively engage in associated cutouts 401, 403, 405 provided on the inner circumference of the actuating sleeve 155.
  • the holding webs 112, 114, 116 of the switching sleeve 110 are in the screw mode in the in Fig. 4 predetermined viewing direction at least in sections behind the annular collar 180 of Fig. 1 arranged and their blocking webs 111, 113, 115 are each arranged between assigned radially outward projections 174, 175 or 176, 177 or 172, 173.
  • the blocking webs 111, 113, 115 therefore bear against the force transmission members 185, 187 and 183 of the clutch housing 130 and release the pressure ring 170 in the axial direction. This can thus of the balls 389 of Fig.
  • Fig. 5 shows the perspective top view and the sectional view of Fig. 4 , in the setting of the mode setting device 150 for an operation of the hand machine tool 100 of 1 to 3 in drilling mode, the actuating sleeve 155 and with this the switching sleeve 110 by a predetermined angle, for. B. in Fig. 5 have been turned clockwise into an assigned drilling position.
  • the locking part 223 is also located as in Fig. 2 described, on the deactivation webs 117, 118, 119 of the switching sleeve 110.
  • the holding webs 112, 114, 116 of the switching sleeve 110 are in the drilling mode in the in Fig. 5 predetermined viewing direction at least in sections behind the annular collar 180 of Fig. 1 arranged and their blocking webs 111, 113, 115 block radially outward projections of the pressure ring, illustratively the projections 175, 177 and 173, respectively.
  • the pressure ring 170 is in the axial direction of the output shaft 140 through the blocking webs 111, 113, 115 of the switching sleeve 110 axially fixed and therefore not axially displaceable. The torque clutch is thus deactivated.
  • Fig. 6 shows the perspective top view and the sectional view of Fig. 4 or 5, in which to set the mode setting device 150 for operating the handheld power tool 100 from 1 to 3 in percussion drilling mode, the actuating sleeve 155 and with this the switching sleeve 110 by a predetermined angle, for. B. in Fig. 6 clockwise, in an assigned percussion drilling position were twisted.
  • the locking part 223 is as in Fig. 2 described, not on the deactivation webs 117, 118, 119 of the switching sleeve 110.
  • the holding webs 112, 114, 116 of the switching sleeve 110 are in the in Fig. 6 predetermined viewing direction at least in sections behind the annular collar 180 of Fig. 1 arranged and their blocking webs 111, 113, 115 block radially outward projections of the pressure ring, illustratively the projections 175, 177 and 173 of Fig. 4 and 5 ,
  • the pressure ring 170 in the percussion drilling mode is axially fixed in position in the axial direction of the output shaft 140 by the blocking webs 111, 113, 115 of the switching sleeve 110 and accordingly cannot be axially displaced.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Drilling And Boring (AREA)

Claims (14)

  1. Machine-outil à main (100) pour un fonctionnement en mode de perçage à percussion, de perçage et de vissage, qui présente un dispositif d'ajustement de mode (150) avec un élément d'actionnement (155) et un élément d'ajustement (110) ainsi qu'une transmission (120) pour l'entraînement d'un arbre de prise de force (140), l'élément d'actionnement (155) et l'élément d'ajustement (110) étant connectés de manière solidaire en rotation l'un à l'autre et l'élément d'ajustement (110), au moins dans un mode de fonctionnement, étant accouplé à un élément de transfert (170) de la machine-outil à main (100), qui est supporté au niveau d'un boîtier d'accouplement (130) associé à la transmission (120) et, dans la position de vissage associée au mode de vissage, pouvant être déplacé axialement au niveau du boîtier d'accouplement (130) et dans des positions de perçage à percussion et de perçage associées au mode de perçage à percussion et de perçage, étant fixé axialement au boîtier d'accouplement (130), l'élément de transfert (170) étant connecté de manière solidaire en rotation au boîtier d'accouplement (130) et un mode de fonctionnement prédéfini pouvant être ajusté par rotation de l'élément d'ajustement (110), l'élément d'ajustement (110) et l'élément de transfert (170) pouvant tourner l'un par rapport à l'autre et l'élément d'ajustement (110) venant en prise au moins en partie autour de l'élément de transfert (170), caractérisée en ce que l'élément d'ajustement (110) est fixé dans la direction axiale essentiellement de manière immobile sur le boîtier d'accouplement (130), par le fait que des éléments de fixation (112, 114, 116) de l'élément d'ajustement (110) viennent en prise par l'arrière avec un collet annulaire (180) du boîtier d'accouplement (130) à la manière d'une connexion à baïonnette (112, 114, 116, 180), le boîtier d'accouplement (130) étant réalisé en forme de douille et présentant au niveau de sa périphérie extérieure le collet annulaire (180).
  2. Machine-outil à main selon la revendication 1, caractérisée en ce que l'élément de transfert (170) est réalisé en forme de disque.
  3. Machine-outil à main selon la revendication 1 ou 2, caractérisée en ce que l'élément de transfert (170) présente des organes de fixation (172, 173, 174, 175, 176, 177, 471, 472, 473, 474, 475, 476) par le biais desquels l'élément de transfert (170) est fixé de manière solidaire en rotation au boîtier d'accouplement (130).
  4. Machine-outil à main selon la revendication 3, caractérisée en ce que les organes de fixation (172, 173, 174, 175, 176, 177, 471, 472, 473, 474, 475, 476) présentent des élargissements (173, 175, 177) orientés radialement vers l'extérieur, par le biais desquels l'élément de transfert (170) est fixé axialement au boîtier d'accouplement (130) dans le mode de perçage à percussion et de perçage.
  5. Machine-outil à main selon l'une quelconque des revendications précédentes, caractérisée en ce que l'élément d'ajustement (110) est réalisé en forme de douille.
  6. Machine-outil à main selon l'une quelconque des revendications précédentes, caractérisée en ce que l'élément d'ajustement (110) présente des éléments de fixation (111, 112, 113, 114, 115, 116) qui sont réalisés pour permettre ou empêcher le déplacement axial de l'élément de transfert (170) sur le boîtier d'accouplement (130).
  7. Machine-outil à main selon la revendication 6, caractérisée en ce que les éléments de fixation (111, 112, 113, 114, 115, 116) présentent des éléments de blocage (111, 113, 115) par le biais desquels l'élément de transfert (170) est fixé axialement au boîtier d'accouplement (130) dans le mode de perçage à percussion et de perçage dans la position de perçage à percussion ou de perçage associée, les éléments de blocage (111, 113, 115) libérant l'élément de transfert (170) dans le mode de vissage dans la direction axiale.
  8. Machine-outil à main selon l'une quelconque des revendications précédentes, caractérisée en ce que des organes de transfert de force (183, 185, 187) pour le transfert de force axial depuis l'élément d'ajustement (110) au boîtier d'accouplement (130) sont prévus au niveau du boîtier d'accouplement (130) dans au moins un mode de fonctionnement.
  9. Machine-outil à main selon la revendication 8, caractérisée en ce que les organes de transfert de force (183, 185, 187) sont réalisés à la manière d'élargissements orientés axialement au niveau du collet annulaire (180).
  10. Machine-outil à main selon l'une quelconque des revendications précédentes, caractérisée en ce qu'un mécanisme d'encliquetage (216, 217) pour la génération de percussion en mode de perçage à percussion est associé à l'arbre de prise de force (140) et l'élément d'ajustement (110) présente des éléments de désactivation (117, 118, 119) pour désactiver le mécanisme d'encliquetage (216, 217).
  11. Machine-outil à main selon l'une quelconque des revendications précédentes, caractérisée en ce que l'élément d'actionnement (155) est réalisé à la manière d'une douille d'actionnement pouvant être tournée par un actionnement manuel.
  12. Machine-outil à main selon la revendication 11, caractérisée en ce que l'élément d'ajustement (110) et l'élément d'actionnement (155) sont réalisés d'une seule pièce.
  13. Machine-outil à main selon l'une quelconque des revendications précédentes, caractérisée en ce qu'au moins un élément de ressort (311, 312, 313, 314, 315, 316) est prévu, lequel est réalisé pour solliciter l'élément de transfert (170) avec une force de ressort prédéfinie axialement dans la direction de la position de perçage à percussion et de perçage.
  14. Machine-outil à main selon la revendication 13, caractérisée en ce que la force de ressort prédéfinie peut être ajustée à l'intérieur de limites prédéfinies par le biais d'un dispositif d'ajustement de couple associé (160).
EP11796651.5A 2010-12-22 2011-11-29 Machine-outil à main Active EP2655019B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010063953A DE102010063953A1 (de) 2010-12-22 2010-12-22 Handwerkzeugmaschine
PCT/EP2011/071270 WO2012084428A1 (fr) 2010-12-22 2011-11-29 Machine-outil à main

Publications (2)

Publication Number Publication Date
EP2655019A1 EP2655019A1 (fr) 2013-10-30
EP2655019B1 true EP2655019B1 (fr) 2020-01-08

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ID=45349168

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11796651.5A Active EP2655019B1 (fr) 2010-12-22 2011-11-29 Machine-outil à main

Country Status (5)

Country Link
US (1) US9849574B2 (fr)
EP (1) EP2655019B1 (fr)
CN (1) CN103260830B (fr)
DE (1) DE102010063953A1 (fr)
WO (1) WO2012084428A1 (fr)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010042682A1 (de) * 2010-10-20 2012-04-26 Robert Bosch Gmbh Bohrmaschine
DE102012221906B4 (de) 2012-11-29 2021-12-30 Robert Bosch Gmbh Handwerkzeugmaschine mit einer Drehmomentkupplung
US9550289B2 (en) 2012-12-20 2017-01-24 Black & Decker Inc. Hand-held power tool with torque limiting unit
CN104416545B (zh) * 2013-08-23 2016-08-10 苏州宝时得电动工具有限公司 电动工具端头连接附件和电动工具
DE102014224931A1 (de) * 2014-12-04 2016-06-09 Robert Bosch Gmbh Handwerkzeugmaschine mit einer Drehmomentkupplung
US10328560B2 (en) * 2015-02-23 2019-06-25 Brian Romagnoli Multi-mode drive mechanisms and tools incorporating the same
TWI607166B (zh) * 2016-08-29 2017-12-01 Push-type transmission
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CN103260830A (zh) 2013-08-21
US20130333907A1 (en) 2013-12-19
EP2655019A1 (fr) 2013-10-30
CN103260830B (zh) 2016-08-10
WO2012084428A1 (fr) 2012-06-28
US9849574B2 (en) 2017-12-26
DE102010063953A1 (de) 2012-06-28

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