EP2629937A1 - Perceuse - Google Patents

Perceuse

Info

Publication number
EP2629937A1
EP2629937A1 EP11761622.7A EP11761622A EP2629937A1 EP 2629937 A1 EP2629937 A1 EP 2629937A1 EP 11761622 A EP11761622 A EP 11761622A EP 2629937 A1 EP2629937 A1 EP 2629937A1
Authority
EP
European Patent Office
Prior art keywords
drilling
ring
pressure ring
support ring
axially
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.)
Granted
Application number
EP11761622.7A
Other languages
German (de)
English (en)
Other versions
EP2629937B1 (fr
Inventor
Joachim Hecht
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
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
Priority to EP19163046.6A priority Critical patent/EP3533561B1/fr
Publication of EP2629937A1 publication Critical patent/EP2629937A1/fr
Application granted granted Critical
Publication of EP2629937B1 publication Critical patent/EP2629937B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25F—COMBINATION 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
    • B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
    • B25F5/001—Gearings, speed selectors, clutches or the like specially adapted for rotary tools
    • 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
    • B25D11/00—Portable percussive tools with electromotor or other motor drive
    • B25D11/06—Means for driving the impulse member
    • B25D11/10—Means for driving the impulse member comprising a cam mechanism
    • B25D11/102—Means for driving the impulse member comprising a cam mechanism the rotating axis of the cam member being coaxial with the axis of the tool
    • B25D11/106—Means for driving the impulse member comprising a cam mechanism the rotating axis of the cam member being coaxial with the axis of the tool cam member and cam follower having the same shape
    • 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
    • B25D16/003—Clutches specially adapted therefor
    • 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
    • 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
    • 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
    • B25D2216/0084—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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/19—Gearing
    • Y10T74/19219—Interchangeably locked
    • Y10T74/19251—Control mechanism

Definitions

  • the invention relates to a drilling machine with impact drilling, drilling and
  • PRIOR ART DE 198 09 133 A1 describes a hand-held drill driver which can be used as a drilling machine, percussion drill or electric screwdriver.
  • the various operating modes of the drill are adjusted by means of an adjusting sleeve, wherein for use as a screwdriver a torque input is possible, whereas in the impact drilling and Bohr- tion a rigid torque coupling is given.
  • the rigid coupling is made by means of coupling parts, which are to spend in a rotationally locked connection.
  • the invention has for its object to be able to set the various operating modes of a drill safely over a long period of operation. This object is achieved with the features of claim 1.
  • the dependent claims indicate expedient developments.
  • the drilling machine is in particular a hand drill having a drive device for driving a tool received in a tool spindle.
  • the drive device comprises a drive unit, usually an electric drive motor, and a coupled to the drive unit gearbox, such as a planetary gear.
  • the drill can be operated in a variety of operating modes, including a percussion drilling function, a drilling function and a screw function. In the impact drilling and drilling function there is a fixed torque coupling between the tool spindle and the drive device, whereas in the screwing function an adjustable torque is transferable.
  • the locking elements form a detent mechanism in which a sinusoidal or sawtooth-like wave profile is scanned and the resulting axial movement is transmitted to the tool spindle.
  • the tool spindle is advantageously held axially adjustable relative to the transmission housing.
  • a Moduseinstell shark which includes a rotatable by manual operation support ring and a rotatably coupled to the support ring pressure ring which is supported on the transmission housing.
  • the support ring is advantageously rotated by means of a manually operable mode setting sleeve.
  • the support ring and the pressure ring are also rotatably mounted about the longitudinal axis or spindle axis and perform the rotational adjustment movement of the mode setting with.
  • the modes Schlagbohr-, drilling and screwing each one rotational position of the mode setting is assigned.
  • the supported on the gear housing pressure ring Moduseinstell insightful is held axially displaceable in the screwed position on the gear housing and fixed in the Schlagbohr- and in the drilling position axially on the gear housing.
  • the support ring, with which the pressure ring is firmly connected in the direction of rotation, however, is suitably mounted fixed in the axial direction and without adjustment relative to the transmission housing.
  • the pressure ring can, in the event that the torque exceeds an adjustable threshold, axially lift off the gear housing, whereby the torque limit is reached.
  • the pressure ring is axially fixed to the gear housing, so that in these modes no torque limiting takes place.
  • the axial fixation is advantageously achieved via a form fit in the axial direction, wherein for transferring between axially positively secured position and axial adjustment of the pressure ring including support ring is rotated, in particular by means of Moduseinstell- sleeve.
  • the axial positive engagement is preferably achieved via an engagement of a radially inwardly projecting projection on the pressure ring in a corresponding recess, for example, a circumferential groove on the transmission housing. In the screwing position with axial adjustment possibility projection and recess or circumferential groove, however, in disengagement.
  • the projection on the pressure ring and the recess or the circumferential groove on a portion of the transmission housing can each intermesh with small tolerances, so that in particular the overall tolerance in the axial transmission chain is low. In this way, a high setting accuracy over a long period of operation is guaranteed.
  • one of the locking elements is held axially adjustable and this locking element or a component connected to the locking element is supported on a Verstellkontur, which is located on the support ring.
  • the adjustment contour allows a transfer of the locking element between different axial positions and thus a transfer between the latching engagement with the further housing-side fixed latching element and a disengagement with this latching element.
  • the detent drilling function is activated in the detent engagement, but disabled in disengagement.
  • the Verstellkontur which expediently extends in the circumferential direction of the support ring, the contour can be scanned by a relative movement between the locking element or the component held thereon and the support ring, resulting in the desired axial displacement of the locking element.
  • the rotational movement of the support ring is here, as stated above, preferably generated by means of Moduseingstellhülse.
  • it is in the coupled with the locking element component which scans the Verstellkontur on the support ring to a locking member, which is fixed in the direction of rotation, but held axially adjustable in the housing of the drill together with the locking element.
  • the locking element and the locking member are advantageously fixedly connected in the axial direction with the tool spindle, but they do not perform the rotational movement of the tool spindle.
  • the support ring and the pressure ring are advantageously designed as separate components.
  • at least one axially projecting shoulder is preferably formed on the support ring, which engages in a corresponding recess on the pressure ring.
  • the support ring surrounds the pressure ring at least partially radially, so that the support ring has at least partially a larger diameter than the pressure ring.
  • Spring device provided with two spring retaining rings and at least one intermediate spring element, wherein the spring means exerts an axial force on the pressure ring.
  • the two spring retaining rings are axially spaced from each other and force-coupled with each other via the at least one intermediate spring element.
  • a plurality of spring elements distributed over the circumference, in particular compression springs between the spring retaining rings are arranged.
  • the spring retaining ring of the spring device is to be adjusted axially by a torque adjustment sleeve, which is expediently rotatable but axially fixed to the housing.
  • the spring holding ring can engage with a thread in an associated thread on the torque setting sleeve, so that, upon a rotational movement of the torque setting sleeve, the spring retaining ring carries out an axial adjusting movement due to the axial fixing of the torque setting sleeve.
  • the axial distance between the first, directly resting on the pressure ring spring retaining ring and the second, acted upon by the moment setting sleeve spring ring decreases. This leads to a changed preload in the min. at least one spring element and thus to a changed axial force which is exerted on the pressure ring.
  • the torque which can be transmitted in the screwing function increases.
  • the pressure ring contacting the spring retaining ring expediently has a smaller diameter than the support ring and is encompassed in the mounted position of the support ring. In this way, a compact, small-sized design is achieved.
  • a detent spring element which acts on the torque setting sleeve with a detent torque.
  • a plurality of locking positions of the torque adjusting sleeve can be specified, in which the torque setting sleeve is acted upon in each case with a latching torque.
  • the cogging torque must be overcome.
  • FIG. 1 is a perspective view of a detail of a drill, with a gear housing and a mode setting for setting the operating mode and a torque setting,
  • FIG. 3 shows a section through the drilling machine
  • FIG. 4 shows the drilling machine in percussion drilling position
  • FIG. 5 shows the drilling machine in the drilling position
  • Fig. 7 is another view of the drill in screwing, but without spring holder, which is part of a spring device for applying force to a pressure ring on the transmission housing.
  • the same components are provided with the same reference numerals.
  • a drill 1 is shown in fragmentary form, which is a hand-held drill with the functions impact drilling, drilling and screws.
  • the drilling machine 1 has a drive device which comprises an electric drive motor and a gearbox 2 in a gearbox housing 3.
  • the gearbox 2 transmits the rotary motion of the drive motor to a tool spindle 4 for receiving a tool.
  • a Moduseinstellhülse 5 which is rotatably mounted relative to the gear housing 3 about the longitudinal axis of the drilling machine or the longitudinal axis of the tool spindle 4.
  • a torque adjustment sleeve 6 is provided, which adjoins directly to the mode setting sleeve 5 and is also rotatable about the spindle longitudinal axis.
  • the sleeves 5 and 6 are independently operable.
  • the maximum transmittable torque can be adjusted in the screw function of the drill.
  • the drilling machine comprises a Moduseinstell Road 7, on the one hand the Moduseinstellhülse 5 (Fig. 1) and on the other hand a support ring 8 and a pressure ring 9, which are rotatably mounted respectively on the transmission housing 3.
  • the pressure ring 9 is located at a greater axial distance from the free end face of the tool spindle 4 than the support ring 8 and rests on the transmission housing 3 directly or on balls on an annular shoulder.
  • Support ring 8 is fixedly connected in the direction of rotation with the pressure ring 9.
  • the support ring 8 is fixed in the axial direction substantially unopposed relative to the housing, wherein for tolerance reasons, an axial movement play for engagement with the torque adjustment can be advantageous.
  • the pressure ring 9 can basically an axial adjusting movement relative to the housing 3 and the
  • the drill 1 is provided with a spring device 10, which has the function to determine a maximum transferable torque in the screwing operation of the drill.
  • the spring device 10 includes a plurality of distributed over the circumference arranged spring elements 1 1, which are each designed as helical compression springs, and a first, annular spring holder 12 on the transmission housing 3 and a second, offset parallel arranged spring retaining ring 13.
  • the spring elements 1 1 extend between the two spring retaining rings 12 and 13.
  • the spring retaining ring 13 can be adjusted axially, whereby the bias of the spring elements 1 1 changes.
  • the first spring retaining ring 12 is located directly on the pressure ring 9 of the Moduseinstell Road 7 and acts on this with an axial force against the transmission housing 3. With increasing bias of the spring elements 1 1 thus also increases the axial force exerted by the spring means 10 on the pressure ring 9 becomes.
  • the mode setting sleeve 5 is rotatably coupled to the support ring 8, which in turn is rotatably connected to the pressure ring 9. During a rotational movement of the mode setting sleeve 5, therefore, both the support ring 8 and the pressure ring 9 are rotated about the longitudinal axis.
  • Fig. 3 is a section through the drill 1 is shown.
  • the tool spindle 4 is rotatably mounted relative to the transmission housing 3 via two axially spaced ball bearings 14 and 15. In addition to the rotational movement, the tool spindle 4 can also be an axial adjusting movement relative to the gear housing
  • the second ball bearing 15 is axially fixedly connected to the tool spindle 4 and slidably mounted within a housing-fixed locking pot 16.
  • the first ball bearing 14, however, is arranged fixed to the housing. Due to the axial displacement, the tool spindle 4 is adjusted between the impact drilling position and the drilling or screwing position. In the Schlagbohrposition the tool spindle 4 is moved to the left, ie into the gear housing. In this case, the locking pot 16 comes into latching engagement with a locking disk 17 which rotatably rests on the lateral surface of the tool spindle 4.
  • the locking disk 17 also has the task of the ball bearing 15, which is also seated on the lateral surface of the tool spindle 4, axially on the
  • a spring element 18 is arranged, which forces the tool spindle 4 in the locking position, in which the locking pot 16 and the locking plate 17 are in detent position.
  • the spring retaining ring 13 which forms the spring device together with the first spring retaining ring 12 and the intermediate spring elements, is screwed to the torque setting sleeve 6, wherein the torque setting sleeve 6 is fixed in positionally fixed, whereas the spring retaining ring 13 is axially adjustable. During a rotational movement of the torque adjusting sleeve 6, the spring retaining ring 13 moves axially due to the screwing, whereby the bias of the spring device is changed.
  • the torque adjustment sleeve 6 In order for the torque adjustment sleeve 6 to latch in discrete detent positions, the torque adjustment sleeve 6 is subjected to a force of a detent spring element 20 which is held on a detent spring holder 19, wherein the detent spring holder 19 and the detent spring element 20 are arranged in the inner space encompassed by the torque setting sleeve 6.
  • the detent spring element 20 engages in discrete angular positions by applying a detent contour on the inner side of the torque setting sleeve 6 by the detent spring element 20.
  • the torque adjustment sleeve 6 is fixed in position axially on the transmission housing 3. This is done by means of a screw 21, which connects a plate 22 with the gear housing 3, wherein the sheet 22 the force acting axially against the detent spring holder 19 against a shoulder on the moment setting 6 and in this way the Momenteneinstellhülse 6.
  • a locking member 23 is connected, which rests on the support ring 8.
  • the support ring 8 has on an end face on a Verstellkontur, which is scanned by the locking member 23 and transferred to the locking plate 17 Ü.
  • Axial changes in height in the adjustment contour on the support ring 18 are transmitted by the contact with the locking member 23 on the locking plate 17, so that the locking plate 17 undergoes a corresponding axial change in position. In this way, the latching engagement between the locking disk 17 and the locking pot 16 can be controlled.
  • a bump 8a protruding axially in the direction of the free end face of the tool spindle 4 is arranged on the support ring 8, which is part of the adjustment contour on the support ring.
  • Fig. 2 shows as well as Fig. 4, the Schlagbohrposition in which the locking member 23 is located outside of the axially raised hump 8a itself.
  • the locking plate 17, which is connected to the locking part 23, by the force of the spring element 18 are in latching engagement with the locking pot 16, whereby the Schlagbohrfunktion is realized.
  • the pressure ring 9 is axially positively fixed to the transmission housing 3 both in the percussion drilling function (FIG. 4) and in the drilling function (FIG. 5) and can only be adjusted in the direction of rotation so that an axial relative movement of the pressure ring 9 relative to the transmission housing 3 is excluded.
  • For locking in the axial direction engages a radially inwardly facing projection 24 on the pressure ring 9 in a circumferential groove 25 on the gear housing 3, so that the pressure ring 9 is received by its radially inwardly facing projection 24 positively in the circumferential groove 25.
  • a plurality of axial grooves 26 are also introduced at regular intervals, which extend up to the circumferential groove 25.
  • Fig. 6 the drill 1 is shown with attached first spring retaining ring 12, which is part of the spring means for the axial pressurization of the pressure ring 9.
  • Fig. 7 the drill 1 for better illustration without the spring retaining ring 12 is shown.
  • the pressure ring 9 is shown in the same circumferential position in which the drill is in the screwed position.
  • the radially inward-pointing projection 24 on the pressure ring 9 is in a rotational position in which the projection 24 protrudes into the axial groove 26 on the transmission housing 3.
  • the pressure ring 9 can be moved with the projections 24 axially along the axial groove 26 against the force of the spring means.
  • a plurality of radially inwardly directed projections 24 are arranged on the pressure ring 9, which protrude in the screw function in associated axial grooves 26 on the gear housing 3.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Drilling And Boring (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Gears, Cams (AREA)
  • Earth Drilling (AREA)

Abstract

L'invention concerne une perceuse ayant une fonction de perçage à percussion, de perçage et de vissage, laquelle présente une transmission pour transmettre le mouvement d'entraînement d'une unité d'entraînement à une broche d'outil (4). Ladite perceuse comporte également deux éléments d'arrêt (16, 17) qui sont en prise dans la position de perçage à percussion et qui ne sont pas en prise dans la position de perçage ou de vissage. Un dispositif de réglage de mode (7) présente une bague d'appui (8) pouvant tourner et une bague de pression (9) qui est accouplée solidaire en rotation à la bague d'appui (8) et est maintenue axialement déplaçable sur le boîtier de transmission (3) dans la position de vissage.
EP11761622.7A 2010-10-20 2011-09-28 Perceuse Active EP2629937B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP19163046.6A EP3533561B1 (fr) 2010-10-20 2011-09-28 Foreuse

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010042682A DE102010042682A1 (de) 2010-10-20 2010-10-20 Bohrmaschine
PCT/EP2011/066891 WO2012052268A1 (fr) 2010-10-20 2011-09-28 Perceuse

Related Child Applications (2)

Application Number Title Priority Date Filing Date
EP19163046.6A Division-Into EP3533561B1 (fr) 2010-10-20 2011-09-28 Foreuse
EP19163046.6A Division EP3533561B1 (fr) 2010-10-20 2011-09-28 Foreuse

Publications (2)

Publication Number Publication Date
EP2629937A1 true EP2629937A1 (fr) 2013-08-28
EP2629937B1 EP2629937B1 (fr) 2019-05-01

Family

ID=44719951

Family Applications (2)

Application Number Title Priority Date Filing Date
EP19163046.6A Active EP3533561B1 (fr) 2010-10-20 2011-09-28 Foreuse
EP11761622.7A Active EP2629937B1 (fr) 2010-10-20 2011-09-28 Perceuse

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP19163046.6A Active EP3533561B1 (fr) 2010-10-20 2011-09-28 Foreuse

Country Status (5)

Country Link
US (1) US9878434B2 (fr)
EP (2) EP3533561B1 (fr)
CN (1) CN103153547B (fr)
DE (1) DE102010042682A1 (fr)
WO (1) WO2012052268A1 (fr)

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CN103381589B (zh) * 2013-07-30 2015-08-05 东莞宝顺力电子塑胶制品厂有限公司 多功能冲击钻
US10328560B2 (en) * 2015-02-23 2019-06-25 Brian Romagnoli Multi-mode drive mechanisms and tools incorporating the same
JP6675188B2 (ja) * 2015-12-03 2020-04-01 株式会社マキタ 震動機構付き電動工具
DE102016222178A1 (de) * 2016-11-11 2018-05-17 Robert Bosch Gmbh Handwerkzeugmaschine mit einer Moduseinstelleinrichtung
US10737373B2 (en) 2017-05-05 2020-08-11 Milwaukee Electric Tool Corporation Power tool
DE102017222006A1 (de) * 2017-12-06 2019-06-06 Robert Bosch Gmbh Handwerkzeugmaschine mit einer Moduseinstelleinrichtung
CN108593202B (zh) * 2018-04-28 2021-05-28 中国石油天然气集团有限公司 一种用于扭矩测量的标定方法***
DE102018214092A1 (de) * 2018-08-21 2020-02-27 Robert Bosch Gmbh Umschaltvorrichtung für einen Bohrhammer und Bohrhammer mit einer Umschaltvorrichtung
US11673243B2 (en) 2018-09-05 2023-06-13 Milwaukee Electric Tool Corporation Blind rivet nut-setting tool
CN110014390B (zh) * 2019-05-08 2023-12-12 南京汤峰机电有限公司 手持装置
CN110170954A (zh) * 2019-05-30 2019-08-27 天津华宁电子有限公司 可调芯双向装旋压装置
EP4217150A1 (fr) 2020-09-24 2023-08-02 Techtronic Cordless GP Outil électrique portatif multifonction
US20230009570A1 (en) * 2021-07-06 2023-01-12 Nanjing Chervon Industry Co., Ltd. Impact drill

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Also Published As

Publication number Publication date
WO2012052268A1 (fr) 2012-04-26
EP2629937B1 (fr) 2019-05-01
EP3533561B1 (fr) 2020-12-16
EP3533561A1 (fr) 2019-09-04
US9878434B2 (en) 2018-01-30
CN103153547A (zh) 2013-06-12
DE102010042682A1 (de) 2012-04-26
CN103153547B (zh) 2016-06-08
US20130269461A1 (en) 2013-10-17

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