EP2601018B1 - Machine-outil electrique avec poignée antivibration - Google Patents

Machine-outil electrique avec poignée antivibration Download PDF

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Publication number
EP2601018B1
EP2601018B1 EP11724668.6A EP11724668A EP2601018B1 EP 2601018 B1 EP2601018 B1 EP 2601018B1 EP 11724668 A EP11724668 A EP 11724668A EP 2601018 B1 EP2601018 B1 EP 2601018B1
Authority
EP
European Patent Office
Prior art keywords
actuating device
electric machine
machine tool
previous
tool
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
EP11724668.6A
Other languages
German (de)
English (en)
Other versions
EP2601018A1 (fr
Inventor
Willy Braun
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 EP2601018A1 publication Critical patent/EP2601018A1/fr
Application granted granted Critical
Publication of EP2601018B1 publication Critical patent/EP2601018B1/fr
Active legal-status Critical Current
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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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D17/00—Details of, or accessories for, portable power-driven percussive tools
    • B25D17/04—Handles; Handle mountings
    • B25D17/043—Handles resiliently mounted relative to the hammer housing
    • 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
    • B25F5/02—Construction of casings, bodies or handles
    • 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
    • B25D2250/255—Switches
    • 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
    • B25D2250/255—Switches
    • B25D2250/261—Means for locking an operative switch on
    • 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
    • B25D2250/371—Use of springs
    • B25D2250/381—Leaf springs
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
    • H01H3/38—Driving mechanisms, i.e. for transmitting driving force to the contacts using spring or other flexible shaft coupling
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/02—Bases, casings, or covers
    • H01H9/06—Casing of switch constituted by a handle serving a purpose other than the actuation of the switch, e.g. by the handle of a vacuum cleaner

Definitions

  • the present invention relates to a power tool, in particular drill and / or chisel, according to the preamble of claim 1, with a tool housing and arranged on the tool housing handle housing, wherein a first adjusting device is arranged in the tool housing, wherein in the handle housing, a second adjusting device is arranged.
  • Such a power tool goes from the WO 2006/117263 A1 out.
  • a switch arranged in the handle is often lockable in drills and / or chisels in "chisel operation", so that the operator does not have to keep pressed the switch in this mode of operation constantly.
  • the switch must not be able to be locked in “drilling” or “hammer drill operation”, so that the hand tool machine can be switched off as quickly as possible by the operator when tilting the drill and does not twist uncontrollably, so that the operator is not injured.
  • a switch arranged in the handle requires a switching connection in the tool housing.
  • a switch arranged in the handle requires a switching connection in the tool housing.
  • electric power tools with anti-vibration handle caused by the relative movement displacement between the tool housing and the handle housing be on the order of a few millimeters, so that such a connection between the arranged in the handle housing machine components and arranged in the tool housing machine components are conventionally complex and therefore expensive.
  • the object of the invention is to provide a power tool that allows a little expensive and very cost-effective mechanical interconnection between machine components, which are arranged for example in a handle housing, and machine components, which are arranged for example in the tool housing.
  • the object is achieved with a power tool, in particular drill and / or chisel, according to claim 1, with a first adjusting device and a second adjusting device spaced from the first adjusting device, wherein the first adjusting device with the second adjusting device by means of a train to be loaded only on switching connector mechanically connected.
  • Such a connector which only has to be loaded on train, required in comparison to a Bowden no counter-forces receiving sleeve and no correspondingly expensive, for example, arranged on the housing of the power tool, recordings for the Bowden cable and the shell, since the switch connector is not for receiving Pressure forces must be designed.
  • the mechanical switching connector is therefore considerably less expensive to implement.
  • the switch connector preferably has a first end and a second end, wherein it is also preferably fixed with its first end to the first adjusting device, and wherein it is further preferably fixed with its second end to the second adjusting device.
  • the first adjusting device is adjustable by adjusting the second adjusting device and / or the second adjusting device by adjusting the first adjusting device by the switching connector is only charged to train.
  • the switch connector is preferably length-resistant, so that it is at least designed so that it does not change its length by the usually occurring strain on train or not essential.
  • the switching connector is a band or a wire.
  • the switch connector is formed as a stamped and bent part. In the embodiment as a band, for example, it is made of a plastic. Alternatively, however, a production of a natural fiber or a tissue is possible.
  • a wire or as a stamped and bent part it is preferably made of a semi-finished sheet metal or a composite material.
  • the electric machine tool has a tool housing and a handle housing arranged on the tool housing, wherein the first adjusting device in the tool housing and the second adjusting device is arranged in the handle housing.
  • the handle housing is an anti-vibration handle housing.
  • the anti-vibration handle housing is supported by means of an elastic connecting means on the tool housing, wherein the switch connector rests on the elastic connecting means.
  • the stretched length of the elastic connecting means is furthermore preferably constant.
  • the elastic connecting means is a leaf spring.
  • This embodiment has the advantage that the switching connector rests on the leaf spring due to the spring bias. Since the length of the leaf spring does not change despite the deformation of the leaf spring occurring relative to the tool housing when the handle housing is moved, the length of the part of the band resting against the leaf spring also does not change almost.
  • the leaf spring is preferably made thin, so that the switch connector near the neutral fiber of the leaf spring abuts against this, and therefore also the length of the voltage applied to the leaf spring portion of the switching connector almost does not change.
  • the distance between the first end of the switching connector and the second end of the switching connector almost does not change even with a relative movement of the handle housing to the tool housing, so that a switching position of the first and / or second actuator is not affected by the relative movement. Therefore, despite the relative movement of the handle housing to the tool housing, the operating state of the electric machine tool set by means of the first and / or second actuator does not change and operational safety is ensured.
  • the elastic connecting means are also preferred in which the distance between the first end of the switching connector and the second end of the switching connector does not change, or at least almost does not change.
  • the elastic connecting means is formed by a hinged lever which is articulated on the handle housing. The lever is preferably provided so that a change in the length of the lever and / or the band prevented during compression of the handle housing or at least reduced to a reasonable minimum.
  • the first adjusting device comprises an operating mode switch, with which the power tool can be switched between at least two operating modes.
  • the second adjusting device of this embodiment is preferably a locking device with which a switching device can be fixed in a switch-on position.
  • the switching connector is therefore fixed at least indirectly with its first end on the operating mode switch, wherein it is fixed with its second end to the locking device.
  • the power tool of this embodiment is, for example, a hammer drill, wherein as operating modes, preferably a "drilling operation”, a “chisel operation” and a combined “hammer drill operation" are provided.
  • the locking device By adjusting the operating mode switch, for example, from the “drilling” or “hammer drill operation” in the “chisel operation", the locking device is adjustable by means of the switching connector that it locks the switching device in the power-on mode. Conversely, the locking device is reset by adjusting the switching device in the off position, so that the operating mode switch, for example, from the "chisel” in the “drilling” or "hammer drill operation", is reset.
  • the switching device is preferably designed as a pawl which has a first pawl member and a second pawl member, wherein by actuating a first pawl member, the pawl in the on position, and by operating the second pawl member, the pawl is adjustable to an off position.
  • the locking device locks the switching device by adjusting the operating mode switch in the off position. Furthermore is also preferred an embodiment in which the locked switching device is achieved by adjusting the operating mode switch.
  • the first actuator is an electric motor switch, the second actuator being a mechanical switch.
  • the power tool can be switched on and off by pressing the mechanical switch.
  • a second adjusting device is adjustable by a only loaded on train switching connector, and / or vice versa.
  • the first adjusting device preferably comprises a slide, which is adjustable when adjusting the operating modes in a sliding direction.
  • the first end of the switching connector is preferably fixed to the slide.
  • moving the slider further motor functions can be switched.
  • a Hall sensor of a speed control unit can be switched, so that a "turbo mode" in the "chisel mode” can be activated by the slider as an additional operating mode.
  • connection of the first with the second actuator by means of a loaded only train train switching connector is inexpensive and very inexpensive to implement and it allows a reliable and the reliability assurance circuit of the first and / or second actuator.
  • Fig. 1 shows a power tool 1 according to the invention with a handle housing 3, which is designed as an anti-vibration handle housing.
  • the handle housing 3 is supported by means of an elastic connecting means 7, here a leaf spring, on a tool housing 2.
  • an elastic connecting means 7 and leaf spring are used synonymously.
  • the leaf spring 7 here has a first end (not visible) and a second end 72, wherein it is firmly connected with its first end to the tool housing 2.
  • the handle housing 3 is supported on the second end 72 of the leaf spring 7 on its upper side 73, so that it can deflect in the horizontal and in the vertical direction. As a result, a relative movement of several millimeters between the tool housing 2 and the handle housing 3 is possible.
  • a Faltbalgelement 21 is provided between the tool housing 2 and the handle housing 3 so that the relative movement between the tool housing 2 and the handle housing 3 is possible without damaging the tool housing 2 or the handle housing 3.
  • a handle shell 31 is releasably inserted, so that arranged in the handle housing 3 machine components are accessible from the outside.
  • the electric machine tool 1 of this embodiment is a hammer drill, which is adjustable by means of an operation mode switch 41 in the operating modes “drilling", “hammer drilling” and “chiselling".
  • the operating mode switch 41 is part of a first adjusting device 4, which further comprises a slider 42.
  • the slider 42 is displaceable by moving the operating mode switch 41 in or against a sliding direction 43 from one of the operating modes to another of the operating modes.
  • the operating mode switch 41 comprises cams (not visible), which displace the slide 42 against the force of a compression spring 44, which is supported on the tool housing 2, when moving in the direction of displacement 43 from one operating mode to the other operating mode.
  • a first end 61 of a switching connector 6 is fixed on the slider 42.
  • the first end 61 is suspended under bias of a spring 63.
  • the switching connector 6, for example by screwing or clipping, is firmly connected to the slider 42.
  • a second end 62 of the switching connector 6 is fixed to a rocking lever part 51 of a second adjusting device 5, of which only the rocking lever part 51 is visible here.
  • the second adjusting device 5 of this embodiment is a locking device.
  • the terms second adjusting device 5 and locking device are used interchangeably.
  • the second end 62 is hooked here in Kipphebelteil 51, which is hook-shaped.
  • Kipphebelteil 51 it is also preferable to firmly connect the second end 62 to the second actuator 5.
  • the second adjusting device 5 instead of a Kipphebelteils 51 a sliding part (not shown), to which the second end 62 of the switching connector 6 is fixed.
  • a switching device 9 which is designed here as a pawl, can be locked in an on position.
  • the terms switching device 9 and pawl are used interchangeably.
  • the pawl 9 has an upper switching pawl portion 91 for adjusting in the on position and a lower switching pawl portion 92 for returning to the off position.
  • an electrical switch 8 is switchable, wherein the electrical switch 9 a circuit (not shown) switches, which is closed in the ON position of the pawl 9, so that the power tool 1 is driven, and opened in the OFF position of the pawl 9 is, so that the power tool 1 is turned off.
  • the slider 42 When resetting the operation mode switch 41 from the “chisel operation” in the “drilling operation” or in the “hammer drill operation", the slider 42 is moved by means of the compression spring 44 against the sliding direction 43. Since the switching connector 6 is stable in length, it follows the sliding movement of the slider 42, so that the locking device 5 is returned from the locking position to the home position. In this case, the locking device 5 is pulled back by means of the adjusting force 52 in the basic position, wherein the switching connector 6 is loaded to train.
  • the switching connector 6 is therefore charged only when pulling the locking device from the basic position to the locked position and when returning from the locking position to the home position.
  • the switching connector 6 in the embodiment as a band only on train loadable.
  • the electric switch 8, the pawl 9 and the locking device 5 are here accessible by loosening and removing the handle shell 31 from the outside.
  • the switching connector 6 is supported on the leaf spring 7. Due to the spring bias of the leaf spring 7 of the switching connector 6 is also in relative movements of the handle housing 3 relative to the tool housing 2 on the leaf spring 7 at. Since the length of the leaf spring 7 does not change, and the voltage applied to the leaf spring 7 part of the switching connector 6 does not change or not essential. Therefore, the distance between the first end 61 of the switching connector 6 and the second end 62 of the switching connector 6 changes despite the relative movement of the Handle housing 3 to the tool housing 2 is not or almost not, so that both the slider 42 and the locking device 5 remain in their position and the operating mode of the power tool 1 does not change.

Claims (12)

  1. Machine-outil électrique (1), notamment perceuse et/ou marteau burineur, avec un premier dispositif de réglage (4) et un deuxième dispositif de réglage (5) à distance du premier dispositif de réglage, et avec un boîtier d'outil (2) ainsi qu'un boîtier de poignée (3) disposé sur le boîtier d'outil (2), le premier dispositif de réglage (4) étant disposé dans le boîtier d'outil (2) et le deuxième dispositif de réglage (5) dans le boîtier de poignée (3), le premier dispositif de réglage (4) étant mécaniquement relié au deuxième dispositif de réglage (5) au moyen d'un raccord de couplage (6) à charger uniquement en traction,
    caractérisée en ce que
    le boîtier de poignée (3) est un boîtier de poignée antivibration, lequel s'appuie sur le boîtier d'outil (2) au moyen d'un moyen de liaison élastique (7), le raccord de couplage (6) venant s'appliquer sur le moyen de liaison élastique (7).
  2. Machine-outil électrique (1) selon la revendication 1, caractérisée en ce que le raccord de couplage (6) comporte une première extrémité (61) et une deuxième extrémité (62), celui-ci étant fixé à sa première extrémité (61) au premier dispositif de réglage (4) et à sa deuxième extrémité (62) au deuxième dispositif de réglage (5).
  3. Machine-outil électrique (1) selon l'une quelconque des revendications précédentes, caractérisée en ce que le premier dispositif de réglage (4) peut être ajusté par ajustage du deuxième dispositif de réglage (5) et/ou le deuxième dispositif de réglage (5) par ajustage du premier dispositif de réglage (4), le raccord de couplage (6) n'étant chargé qu'en traction.
  4. Machine-outil électrique (1) selon l'une quelconque des revendications précédentes, caractérisée en ce que le raccord de couplage est de longueur constante.
  5. Machine-outil électrique (1) selon l'une quelconque des revendications précédentes, caractérisée en ce que le raccord de couplage (6) est une bande ou un fil ou une pièce flexible emboutie.
  6. Machine-outil électrique (1) selon l'une quelconque des revendications précédentes, caractérisée en ce que la longueur étendue du moyen de liaison élastique (7) est constante.
  7. Machine-outil électrique (1) selon l'une quelconque des revendications précédentes, caractérisée en ce que le moyen de liaison élastique (7) est un ressort à lame.
  8. Machine-outil électrique (1) selon l'une quelconque des revendications précédentes, caractérisée en ce que le premier dispositif de réglage (4) comprend un interrupteur de mode de fonctionnement (41) avec lequel la machine-outil électrique (1) peut être connectée au moins en deux modes de fonctionnement.
  9. Machine-outil électrique (1) selon l'une quelconque des revendications précédentes, caractérisée en ce que le deuxième dispositif de réglage (5) est un dispositif de blocage avec lequel un dispositif de connexion (9) peut être placé dans une position de connexion ou une position de déconnexion.
  10. Machine-outil électrique (1) selon l'une quelconque des revendications précédentes, caractérisée en ce que le premier dispositif de réglage (4) comprend un coulisseau (42) qui peut être ajusté en ajustant les modes de fonctionnement dans une direction de coulissement (43).
  11. Machine-outil électrique (1) selon l'une quelconque des revendications précédentes, caractérisée en ce que la première extrémité (61) du raccord de couplage (6) est fixée sur le coulisseau (42).
  12. Machine-outil électrique (1) selon l'une quelconque des revendications précédentes, caractérisée en ce qu'en faisant coulisser le coulisseau (42) d'autres fonctions du moteur peuvent être connectées.
EP11724668.6A 2010-08-02 2011-06-15 Machine-outil electrique avec poignée antivibration Active EP2601018B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010038753A DE102010038753A1 (de) 2010-08-02 2010-08-02 Antivibrationshandgriff mit auf Zug belasteter Schaltverbindung
PCT/EP2011/059871 WO2012016745A1 (fr) 2010-08-02 2011-06-15 Poignée antivibration à connexion de commutation sollicitée en traction

Publications (2)

Publication Number Publication Date
EP2601018A1 EP2601018A1 (fr) 2013-06-12
EP2601018B1 true EP2601018B1 (fr) 2018-08-08

Family

ID=44243591

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11724668.6A Active EP2601018B1 (fr) 2010-08-02 2011-06-15 Machine-outil electrique avec poignée antivibration

Country Status (6)

Country Link
US (1) US9694484B2 (fr)
EP (1) EP2601018B1 (fr)
CN (1) CN103052474B (fr)
DE (1) DE102010038753A1 (fr)
RU (1) RU2578293C2 (fr)
WO (1) WO2012016745A1 (fr)

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DE102011082093A1 (de) 2011-09-02 2013-03-07 Robert Bosch Gmbh Handgriffvorrichtung für eine Handwerkzeugmaschine
US9701006B2 (en) * 2014-02-20 2017-07-11 Ingersoll-Rand Company Power tools with reconfigurable secondary switch
US10668614B2 (en) 2015-06-05 2020-06-02 Ingersoll-Rand Industrial U.S., Inc. Impact tools with ring gear alignment features
WO2016196918A1 (fr) 2015-06-05 2016-12-08 Ingersoll-Rand Company Interfaces utilisateur d'outil électrique
US11260517B2 (en) 2015-06-05 2022-03-01 Ingersoll-Rand Industrial U.S., Inc. Power tool housings
US11491616B2 (en) * 2015-06-05 2022-11-08 Ingersoll-Rand Industrial U.S., Inc. Power tools with user-selectable operational modes
EP3117963A1 (fr) * 2015-07-17 2017-01-18 HILTI Aktiengesellschaft Machine-outil portative
EP3581337A1 (fr) * 2018-06-11 2019-12-18 HILTI Aktiengesellschaft Machine-outil portative
EP3593951A1 (fr) * 2018-07-11 2020-01-15 Hilti Aktiengesellschaft Machine-outil portative
CN109994330A (zh) * 2019-03-04 2019-07-09 常州云杰电器有限公司 具有快速分断的电动工具开关

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Also Published As

Publication number Publication date
DE102010038753A1 (de) 2012-02-02
US20130206434A1 (en) 2013-08-15
EP2601018A1 (fr) 2013-06-12
RU2013109130A (ru) 2014-09-10
RU2578293C2 (ru) 2016-03-27
WO2012016745A1 (fr) 2012-02-09
CN103052474B (zh) 2016-08-31
CN103052474A (zh) 2013-04-17
US9694484B2 (en) 2017-07-04

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