WO2008064953A1 - Machine-outil manuelle - Google Patents

Machine-outil manuelle Download PDF

Info

Publication number
WO2008064953A1
WO2008064953A1 PCT/EP2007/061013 EP2007061013W WO2008064953A1 WO 2008064953 A1 WO2008064953 A1 WO 2008064953A1 EP 2007061013 W EP2007061013 W EP 2007061013W WO 2008064953 A1 WO2008064953 A1 WO 2008064953A1
Authority
WO
WIPO (PCT)
Prior art keywords
sleeve
torque
coupling element
switching
gear unit
Prior art date
Application number
PCT/EP2007/061013
Other languages
German (de)
English (en)
Inventor
Andre Ullrich
Helmut Heinzelmann
Juergen Lennartz
Michael Weiss
Tobias Herr
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 EP07821379.0A priority Critical patent/EP2097224B1/fr
Priority to CN2007800444161A priority patent/CN101541481B/zh
Publication of WO2008064953A1 publication Critical patent/WO2008064953A1/fr

Links

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
    • B25D—PERCUSSIVE TOOLS
    • B25D2211/00—Details of portable percussive tools with electromotor or other motor drive
    • B25D2211/06—Means for driving the impulse member
    • B25D2211/061—Swash-plate actuated impulse-driving mechanisms
    • 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
    • B25D2216/0015—Tools having a percussion-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
    • B25D2216/0007—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
    • B25D2217/00—Details of, or accessories for, portable power-driven percussive tools
    • B25D2217/0003—Details of shafts of percussive tool bits
    • 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
    • B25D2250/231—Sleeve details

Definitions

  • the invention relates to a hand tool according to the preamble of claim 1.
  • the switching device is provided for switching between different modes and has a torque sleeve.
  • the invention relates to a hand tool, in particular a hammer drill, with a beating and a rotating drive and a switching device for switching between different modes, wherein the switching device comprises a torque sleeve.
  • the power tool has a bearing axis on which the torque sleeve is rotatably mounted, whereby a particularly compact switching device with an efficient transmission of a drive torque, in particular a torque, can be achieved.
  • the torque sleeve is arranged immovably in an axial direction of the bearing axis on this.
  • a "switching between different operating modes” is intended, in particular, to switch between a beating or a beating-rotating drive, between a beating-rotating drive and a rotating drive, between a beating and a rotating drive, or between a beating, a rotating drive or a hitting-rotating drive for a tool located in the hand-held power tool
  • Torque sleeve is expediently provided to transmit in an operation of the power tool torque to other units, such as a striking mechanism and / or on a main driven means, such as a hammer tube.
  • the torque sleeve during operation of the power tool is rotationally connected to a drive unit, such as via a drive shaft.
  • a "bearing axis" is to be understood as meaning an axle which is fixedly and immovably, in particular non-rotatably, connected to a housing of the handheld power tool and which is intended for mounting further components of the handheld power tool formed, which has a pure bit drive, a pure drill drive and a combined drill bit drive for a driven by the power tool tool.
  • the bearing axis is rigidly connected to a portable power tool housing, whereby a mass to be rotated in a torque transmission to a mass of the torque sleeve can be reduced, so that a torque transmission with low energy losses can be achieved.
  • the bearing axis can be directly or particularly advantageous indirectly connected to the power tool housing, such as by means of a Swissflanschs.
  • the switching device has a gear unit which is rotatably mounted on the bearing axis, whereby structurally simple drive torque in the form of a torque can be transmitted by means of the gear unit.
  • the gear unit between the torque sleeve and another unit is interposed and so provided for a transmission of torque from the torque sleeve to the further unit, such as a hammer tube for generating a rotating drive for a tool and / or on a percussion device arrangement, which generates a momentum for a tool.
  • the gear unit has at least one coupling element which is provided for transmitting a torque for a rotary drive of a tool.
  • the coupling element is integrally formed as a toothing to the gear unit.
  • the switching device has a switching sleeve which is provided for a torque transmission from the torque sleeve to the gear unit.
  • the switching sleeve which is preferably shorter than the torque sleeve, transmits a torque within a particularly short transmission range.
  • the shift sleeve is preferably also provided for switching to different types of drive of the portable power tool for a tool, such as a chisel drive, a drill drive, etc.
  • the gear unit has at least one further coupling element, which is provided for a transmission of torque from the shift sleeve to the gear unit, whereby a particularly low-wear torque transmission can be achieved.
  • the coupling element is formed by a toothing corresponding to the switching sleeve or to a coupling element of the switching sleeve.
  • a permanent transmission of a drive torque, in particular of a torque, during operation of the power tool can advantageously be achieved if the shifting device has at least one coupling element which rotatably connects the sliding sleeve to the torque sleeve.
  • the sliding sleeve is thus always rotationally connected to a drive unit, such as an electric motor, via the torque sleeve during operation of the hand-held power tool.
  • the shift sleeve is displaceably arranged on the torque sleeve along an axial direction, so that the shift sleeve is structurally simply brought into different shift positions or operating positions during operation of the handheld power tool or the shifting device by sliding in the axial direction on the torque sleeve can.
  • the shift sleeve has at least one coupling element which transmits torque to a striking mechanism arrangement in at least one operating position, whereby a positive and particularly low-wear transmission to the striking mechanism arrangement can be achieved.
  • the coupling element of the shift sleeve for transmitting a torque to the impact mechanism is formed integrally with a coupling element of the shift sleeve, which rotatably connected during operation of the power tool with the torque sleeve, so that additional components, space, assembly costs and costs can be advantageously saved.
  • the shift sleeve is provided in at least one mode to a simultaneous transmission of torque to the gear unit and on the percussion mechanism and so structurally simple, a compact switching device can be achieved.
  • the shift sleeve preferably has a length along an axial direction, which allows a simultaneous engagement of components of the striking mechanism arrangement and the gear unit coupled to the sliding sleeve in at least one operating position.
  • FIG. 1 shows a detail of a hand tool according to the invention with a switching device in a drilling operation in a schematic side view
  • Fig. 2 shows the hand tool of Figure 1 in a percussion drilling in a schematic side view
  • Fig. 3 shows the hand tool of Figure 1 in a chisel operation in a schematic side view.
  • FIGS. 1 to 3 show a section of a hand tool machine 10 according to the invention, formed by a hammer drill, with a switching device 12.
  • the hand tool 10 comprises a non-illustrated, formed by an electric motor drive unit, which is in operation the power tool 10 generates a drive torque and this transmits via a drive shaft 38 to a torque sleeve 14.
  • the drive torque is transmitted from the torque sleeve 14 to a percussion arrangement 34 or to a main driven means formed by a hammer tube 40, thereby producing a rotating, a striking or a strikingly rotating drive of a tool 24 located in a tool holder
  • a transmission of the drive torque to the hammer tube 40 this rotates about a tool axis 42 and thus generates a rotating drive of the tool holder not shown in detail in Figures 1 to 3, in which the tool 24 is arranged against rotation.
  • a drive torque is transmitted to the striking mechanism arrangement 34, it generates a striking pulse which is transmitted via a racket, not shown, to an anvil and finally to the tool 24 (FIGS. 1 to 3).
  • the switching device 12 comprises the torque sleeve 14, a bearing shaft 16, a gear unit 20 and a shift sleeve 26, which is provided for switching between different types of drive of the power tool 10.
  • the bearing axle 16 has a drive-side end 44 and a drive-side end 46 and is connected thereto rigidly and immovably to an intermediate flange 18 of a hand-held power tool housing.
  • the torque sleeve 14 is rotatably and immovably mounted in an axial direction 32 via a bearing not shown in detail.
  • the axial direction 32 extends parallel to the tool axis 42.
  • the torque sleeve 14 extends in the axial direction 32 of the bearing axis 16 of the drive-side end 44th to a center of the bearing axis 16.
  • a gear 50 via which the drive torque from the drive shaft 38 which has a gear 50 corresponding to the toothing and form fit in the gear 50 engages, is transmitted to the torque sleeve 14 so that during operation of the power tool 10 is always a drive torque of the drive unit is transmitted to the torque sleeve 14 ( Figures 1 to 3).
  • the shift sleeve 26 is arranged against rotation about the torque sleeve 14.
  • the switching device 12 has a coupling element 30, which is formed by a driving toothing and the shift sleeve 26 rotatably connected to the torque sleeve 14.
  • the coupling element 30 is rotatably connected to the torque sleeve 14 in an axial direction 32 of the torque sleeve 14 on the output side end 52.
  • this On a radially outwardly directed side of the coupling element 30, this has a toothing, into which a coupling element 30 corresponding, formed by a coupling element 36 internal toothing of the shift sleeve 26 engages positively, wherein the internal toothing on a radially inwardly facing cylinder jacket surface ( Figures 1 to 2) of the switching sleeve 26 is arranged.
  • the coupling element 36 of the shift sleeve 26 extends in the axial direction 32 over an entire length 54 of the shift sleeve 26, so that the shift sleeve 26 by an operator of the power tool 10 for switching to different types of drive for the tool 24 located in the tool holder in different
  • Shift positions along the axial direction 32 of the torque sleeve 14 can be moved ( Figures 1 to 3).
  • the shift sleeve 26 is always independent of the different switching positions along the torque sleeve 14 against rotation connected thereto.
  • the switching sleeve 26 takes in operation of the power tool 10 along the torque sleeve 14 in the axial direction 32 different switching positions ( Figures 1 to 3).
  • a first switching position in which the switching device 12 or the switching sleeve 26 switches in a pure drill drive for the tool 24, the switching sleeve 26 is brought via a not shown in detail and operable for an operator actuator in a front, output side position ( Figure 1 ).
  • the shift sleeve 26 transmits a drive torque to the gear unit 20, which is rotatable and in
  • Axial direction 32 is immovably mounted on a not-shown bearing on the bearing axis 16.
  • the gear unit 20 is connected to the torque sleeve 14 or to the coupling element 30 of the torque sleeve 14 rotatably relative to the torque sleeve 14 along the axial direction 32 of the bearing axis 16.
  • the latter has a coupling element 28 which is formed by a gear formed onto the gear unit 20 and has a toothing which is arranged on a surface of the coupling element 28 oriented radially outwards.
  • the toothing of the coupling element 28 is adapted to the coupling element 36 of the switching sleeve 26, so that a positive engagement of the coupling element 36 of the switching sleeve 26 and the toothing of the coupling element 28 of the gear unit 20 within the first switching position or in a drilling operation of the power tool 10 is achieved ( Figure 1).
  • the gear unit 20 also has a further coupling element 22, which is arranged on a driven-side end 64 of the gear unit 20.
  • the coupling element 22 is formed by a gear formed integrally with the gear unit 20, which has a toothing on a radially outwardly directed surface 66 of the coupling element 22.
  • the coupling element 22 engages in a drilling operation of the power tool 10 in a coupling element 22 corresponding, formed by a gear coupling element 68 which is arranged against rotation on the hammer tube 40.
  • a drive torque is transmitted from the shift sleeve 26 or the coupling element 36 of the shift sleeve 26 to the coupling element 28 of the gear unit 20 and from the gear unit 20 and the further coupling element 22 of the gear unit 20 to the coupling element 68th of the hammer tube 40 transmitted. If the shift sleeve 26 is in the output end position, the coupling element 36 of the shift sleeve 26 covers only the coupling element 30 of the torque sleeve 14 and the coupling element 28 of the gear unit 20 so that the tool 24 is driven in an exclusive drill drive (FIG. 1). ,
  • the shift sleeve 26 simultaneously transmits a drive torque to the coupling element 28 of the gear unit 20 and to the percussion device arrangement 34 or to a coupling element 70 of FIG
  • Impact mechanism 34 ( Figure 2).
  • the switching sleeve 26 is pushed into a middle switching position along the axial direction 32 of the torque sleeve 14, in which the coupling element 36 of the shift sleeve 26 with the output side end 56 still in engagement with the coupling element 28 of the gear unit 20 and with a drive end 72 in engagement with the coupling element 70 of the percussion arrangement 34 is.
  • the hand tool 10 thus simultaneously performs a drilling and chisel movement for a tool 24.
  • the percussion mechanism 34 comprises a wobble finger 74, which is mounted on a wobble sleeve 78 via a ball bearing 76.
  • the wobble sleeve 78 is freely rotatably mounted on the torque sleeve 14 via a bearing 80 which is formed by a needle bearing.
  • the wobble sleeve 78 is immovably mounted on the torque sleeve 14 in the axial direction 32.
  • On a driven-side end 82 of the wobble sleeve 78 this has the coupling element 70 which is formed by a toothing corresponding to the internal toothing of the coupling element 36 of the switching sleeve 26 and is non-rotatably arranged on the wobble sleeve 78.
  • the coupling element 36 of the shift sleeve 26 Via the coupling element 36 of the shift sleeve 26, the torque is transmitted to the coupling element 70 and thus to the wobble sleeve 78 and thus driven the percussion mechanism 34.
  • this exclusively transmits a drive torque to the striking mechanism arrangement 34 (FIG. 3).
  • the switching sleeve 26 is in a drive-side end position on the torque sleeve 14 and on the torque sleeve 14 together with the coupling element 30, wherein the coupling element 36 of the switching sleeve 26 in the axial direction 32 completely covers the coupling element 70 of the wobble sleeve 78.
  • the coupling element 36 of the shift sleeve 26 and the coupling element 28 of the gear unit 20 are in a decoupled position to each other, so that the tool 24 is in an exclusive chisel operation.
  • a befindliches on the output side end 56 of the shift sleeve 26 locking 58 is moved together with the shift sleeve 26.
  • the locking means 58 is arranged in a semicircle around the gear unit 20.
  • the locking means 58 has a not shown in detail, radially inwardly facing internal toothing, which is in pure Mei- ßel réelle the hand tool in engagement with the coupling element 28 of the gear unit 20 and the gear unit 20 locked against rotation, ie the gear unit 20 is located opposite the shift sleeve 26 in a rest position.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Drilling And Boring (AREA)
  • Structure Of Transmissions (AREA)
  • Arrangement And Mounting Of Devices That Control Transmission Of Motive Force (AREA)

Abstract

L'invention concerne une machine-outil manuelle, en particulier un marteau-perforateur, comprenant une commande de marteau et une commande rotative ainsi qu'un dispositif de commutation (12) destiné à être commuter dans différents modes de fonctionnement, ledit dispositif de commutation (12) présentant un manchon de couple (14). Selon l'invention, la machine-outil à main présente une tige support (16), sur laquelle le manchon de couple (14) est monté de manière à pouvoir tourner.
PCT/EP2007/061013 2006-12-01 2007-10-16 Machine-outil manuelle WO2008064953A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP07821379.0A EP2097224B1 (fr) 2006-12-01 2007-10-16 Machine-outil manuelle
CN2007800444161A CN101541481B (zh) 2006-12-01 2007-10-16 手持式工具机

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200610056853 DE102006056853A1 (de) 2006-12-01 2006-12-01 Handwerkzeugmaschine
DE102006056853.2 2006-12-01

Publications (1)

Publication Number Publication Date
WO2008064953A1 true WO2008064953A1 (fr) 2008-06-05

Family

ID=38983979

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2007/061013 WO2008064953A1 (fr) 2006-12-01 2007-10-16 Machine-outil manuelle

Country Status (5)

Country Link
EP (1) EP2097224B1 (fr)
CN (1) CN101541481B (fr)
DE (1) DE102006056853A1 (fr)
RU (1) RU2453419C2 (fr)
WO (1) WO2008064953A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10737373B2 (en) 2017-05-05 2020-08-11 Milwaukee Electric Tool Corporation Power tool

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008054692A1 (de) * 2008-12-16 2010-06-17 Robert Bosch Gmbh Handwerkzeugmaschine
DE102013216545A1 (de) * 2013-08-21 2015-02-26 Robert Bosch Gmbh Getriebevorrichtung
CN108927545A (zh) * 2018-08-09 2018-12-04 台州来智科技有限公司 一种冷却水循环双模式驱动选择钻孔装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0444030B1 (fr) * 1988-06-04 1993-03-31 Robert Bosch Gmbh Marteau perforateur
JPH09239675A (ja) 1996-03-08 1997-09-16 Hitachi Koki Co Ltd ハンマドリルの動作モード切換装置
EP1393863A1 (fr) * 2002-08-27 2004-03-03 Matsushita Electric Works, Ltd. Marteau perforateur
DE10355812A1 (de) * 2003-11-28 2005-06-09 Robert Bosch Gmbh Elektrowerkzeugmaschine
WO2006029916A1 (fr) * 2004-09-17 2006-03-23 Robert Bosch Gmbh Dispositif de commutation

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2272118C1 (ru) * 2004-09-02 2006-03-20 Открытое Акционерное Общество "Институт Механизированного Инструмента" (ВНИИСМИ) Ударно-вращательная машина
DE102004058686A1 (de) * 2004-09-03 2006-03-09 Robert Bosch Gmbh Elektrowerkzeug mit einem zwischen den Betriebsarten Bohren, Schlagbohren, Meißeln umschaltbaren Antrieb

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0444030B1 (fr) * 1988-06-04 1993-03-31 Robert Bosch Gmbh Marteau perforateur
JPH09239675A (ja) 1996-03-08 1997-09-16 Hitachi Koki Co Ltd ハンマドリルの動作モード切換装置
EP1393863A1 (fr) * 2002-08-27 2004-03-03 Matsushita Electric Works, Ltd. Marteau perforateur
DE10355812A1 (de) * 2003-11-28 2005-06-09 Robert Bosch Gmbh Elektrowerkzeugmaschine
WO2006029916A1 (fr) * 2004-09-17 2006-03-23 Robert Bosch Gmbh Dispositif de commutation

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10737373B2 (en) 2017-05-05 2020-08-11 Milwaukee Electric Tool Corporation Power tool
US11426852B2 (en) 2017-05-05 2022-08-30 Milwaukee Electric Tool Corporation Power tool
US11583988B2 (en) 2017-05-05 2023-02-21 Milwaukee Electric Tool Corporation Power tool

Also Published As

Publication number Publication date
EP2097224A1 (fr) 2009-09-09
RU2009124771A (ru) 2011-01-10
RU2453419C2 (ru) 2012-06-20
DE102006056853A1 (de) 2008-06-05
CN101541481B (zh) 2011-04-06
CN101541481A (zh) 2009-09-23
EP2097224B1 (fr) 2013-12-11

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