EP2163358B1 - Poignée supplémentaire pour une machine-outil manuelle - Google Patents

Poignée supplémentaire pour une machine-outil manuelle Download PDF

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Publication number
EP2163358B1
EP2163358B1 EP09168070A EP09168070A EP2163358B1 EP 2163358 B1 EP2163358 B1 EP 2163358B1 EP 09168070 A EP09168070 A EP 09168070A EP 09168070 A EP09168070 A EP 09168070A EP 2163358 B1 EP2163358 B1 EP 2163358B1
Authority
EP
European Patent Office
Prior art keywords
pivot
arrangement
supplementary handle
mounting shaft
axis
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
EP09168070A
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German (de)
English (en)
Other versions
EP2163358A1 (fr
Inventor
Paul Martin
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.)
Hilti AG
Original Assignee
Hilti AG
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Filing date
Publication date
Application filed by Hilti AG filed Critical Hilti AG
Publication of EP2163358A1 publication Critical patent/EP2163358A1/fr
Application granted granted Critical
Publication of EP2163358B1 publication Critical patent/EP2163358B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B25F5/02—Construction of casings, bodies or handles
    • B25F5/025—Construction of casings, bodies or handles with torque reaction bars for rotary tools
    • B25F5/026—Construction of casings, bodies or handles with torque reaction bars for rotary tools in the form of an auxiliary handle

Definitions

  • the invention relates to an auxiliary handle for a hand tool according to the preamble of claim 1 and as from EP 1 974 867 A1 or from the DE 10 2006 0550 14 A1 known.
  • auxiliary handles are provided as side handles, for example, on a housing section device side adjacent to the tool holder for guiding the machine tool, if necessary.
  • the handle element of the auxiliary handle In order to guide the machine tool optimally and to allow different grip positions on the machine tool, which ensures a fatigue-poor working, it is known to design the handle element of the auxiliary handle about a pivot axis pivotable.
  • the pivot joint allows pivoting of the handle member relative to the clamping portion, whereby the center of gravity of the power tool is displaced relative to the user.
  • the handle element of the auxiliary handle is often adjusted during use of the machine tool.
  • the handle element of the auxiliary handle in the blocking position of the pivot joint is not unintentionally adjustable, usually intermeshing teeth are provided, for example, between the clamping portion and the handle member. For a pivoting of the grip element, this toothing must be repealed and then restored, which is a considerable amount of time.
  • an auxiliary handle for a hand tool is known, the clamp as a clamping section for fixing the auxiliary handle on having a portion of the power tool. Furthermore, the auxiliary handle has a grip element for gripping and holding the auxiliary handle. Between the clamping portion and the handle member a blockable pivot joint is arranged, which has a bearing pin with a longitudinal axis forming the pivot axis. Further, an operating knob is provided as a clamping element for clamping and releasing the clamping portion, wherein the actuating knob is disposed at one end of the bearing pin and engages an externally threaded portion of the bearing pin.
  • a cone-shaped, elastically deformable engagement element is provided, wherein the outer surface of the engagement element can be brought into frictional engagement with a conically widened recess in the section of the grip element.
  • Mutually facing teeth between the clamping portion and the handle member form the locking means for blocking or releasing the pivot joint.
  • a disadvantage of the known solution is that to release the pivot joint as to release the tension of the clamping portion continues to require a large number of revolutions of the Verspannelements.
  • the object of the invention is to provide an auxiliary handle for a hand tool that does not have the aforementioned disadvantages and allows a simple and quick repositioning or removal of the auxiliary handle and pivotability of the handle member.
  • an independent of the bracing quick release device for the locking device and the clamping portion for transferring the locking device is provided in the position releasing the pivot joint and for releasing the tension of the clamping portion.
  • the quick-release device is actuated, the pivot joint is released at the same time and the tension of the clamping section is released.
  • the handle element relative to the clamping portion and on the other hand, the additional handle to the Working axis of the power tool around swivel. Since the quick-release device is independent of the Verspannelement, no tedious revolutions of, for example, designed as an operating knob Verspannements are more necessary.
  • the quick release device is advantageously designed such that the bearing pin is easily axially fixable in the quick release device for a renewed distortion of the clamping portion and for a new blocking of the pivot joint.
  • the quick-release device has a fixing device for axially fixing the bearing pin and an actuating member acting on the fixing device for releasing the bearing pin by the fixing device.
  • the actuating member which is advantageous executable only with one finger of a hand, the axial fixation of the bearing pin is released, so that the bearing pin is axially displaceable.
  • the pivot joint is released and the tension of the clamping portion, such as the tension of a tension band, solved.
  • the actuating member is provided at the end opposite the end with the clamping element of the bearing pin, which allows an advantageous embodiment and thus an advantageous production of the auxiliary handle, wherein a simple operation of the quick release device is ensured.
  • the actuator comprises a pushbutton axially displaceable along the pivot axis of the pivot joint, whereby the quick release device is easy to operate and executable.
  • the fixing device preferably has at least one pivotable element which can be deflected radially with respect to the pivot axis of the pivot joint, with a locking section which can be brought into contact with the bearing pin and with a control section which can be brought into contact with the actuating element.
  • this acts on the control section on the pivot member, wherein the locking portion is brought out of engagement with the bearing pin, so that the bearing pin is axially displaceable and thus the auxiliary handle is released.
  • the bearing pin is also easily re-axially fixed, since this can be introduced only with its end facing away from the bracing in the fixing device.
  • the at least one pivoting element is mounted at a pivot point, such as on a pivot bearing, which is advantageously provided between the control section and the locking section.
  • a pivot point such as on a pivot bearing, which is advantageously provided between the control section and the locking section.
  • the actuator Upon actuation of the actuator is the Arretismesabêt of at least one pivoting element pivoted in an advantageous manner radially outward. After the pivoting of the at least one pivoting element in the previous position of the bearing pin is again axially fixed.
  • the fixing device has a plurality of radially deflectable pivot elements, which are advantageous circumferentially evenly distributed, are arranged radially outward to the pivot axis, which is in a simple manner a sufficiently large contact surface for the axial fixation of the bearing pin available.
  • a spring element which spring-loaded the locking portion of the at least one pivoting element in the direction of the pivot axis.
  • the spring element for example, a ring made of a resilient material, such as a rubber or steel spring ring, or a separate radially inwardly or radially outwardly acting resilient element acts as a return element for the at least one pivot element, so that the at least one pivoting element automatically in his Fixing position for axial fixation of the bearing pin is forced.
  • the spring element ensures concentric holding together thereof.
  • the bearing bolts are at least partially provided with an outer profile and the at least one pivoting element at its locking portion with a profiling engageable with the outer profiling, whereby the engagement of the parts with each other and the holding force of the fixation is increased.
  • the outer profiling of the bearing pin an external thread and the profiling of the locking portion of the at least one pivot member is formed as a partial thread, which is further advantageous complementary to the external thread of the bearing pin.
  • the at least one pivot element assumes the function of a threaded nut. This function as a thread is taken over in particular in one embodiment of the fixing device, which has a plurality of radially deflectable and radially outside the pivot axis arranged pivot elements.
  • the outer profiling of the bearing pin and / or the profiling on the locking portion of the at least one pivoting element is a sawtooth thread.
  • the free end of the bearing pin with the outer profiling can be easily inserted into the fixing device, for example, in the arrangement of the auxiliary handle on the power tool, each thread engages the threaded portion of the at least one pivot member.
  • each thread engages the threaded portion of the at least one pivot member.
  • the fixing device has a guide element with at least one radially outwardly directed, towards the pivot axis open guide recess for guiding the at least one radially deflectable pivot member, whereby the at least one pivot element is guided during the displacement of the fixing position in the release position of the bearing pin.
  • the number of guide recesses in the guide element corresponds at least to the number of radially deflectable pivot elements which has the fixing device.
  • FIG. 1 is a hand tool 7 with an inventive additional handle 11 shown as a side handle, which is releasably secured to a cylindrical portion 8 of the power tool 7.
  • the auxiliary handle 11 has a handle member 31 for gripping and holding the auxiliary handle 11, which is pivotable about a pivot axis 12 to the working axis 9 of the power tool 7 back to adjust the handle positions on the power tool 7, if necessary.
  • the auxiliary handle 11, as he in the FIGS. 2 to 4 is shown, for fixing to the power tool 7 on a clamping portion 21 which comprises a clamping band 22.
  • the ends of the tension band 22 are held in two clamping parts 23 and 25.
  • the grip element 31 of the auxiliary handle 11 which is substantially U-shaped or D-shaped, has a base 32 and two legs 33 and 38 projecting from the base 32, respectively.
  • On the leg 33 is a first, the other leg 38th facing bearing portion 34 is provided.
  • On the other leg 38 a second, the leg 33 facing bearing portion 39 is provided.
  • a lockable pivot joint 46 is provided, which has a bearing pin 47 with a pivot axis 12 forming the longitudinal axis.
  • the ends of the tension band 22, the clamping parts 23 and 25 and the bearing portions 34 and 39 are penetrated by the bearing pin 47, so that they form each joint sleeves of the pivot joint 46.
  • a knob as a clamping element 51 for clamping and releasing the clamping portion 21 is rotatably fixed at one end 48 of the bearing pin 47 in the region of the leg 38.
  • a locking device 41 for blocking or releasing the pivot joint 46 is provided.
  • the mutually facing contact surfaces of the clamping parts 23 and 25 and the bearing portions 34 and 39 are provided with serrations and counter teeth, which engage in the clamped state of the auxiliary handle 11.
  • a quick release device 56 is provided on a portion of the handle member 31 in the region of the first bearing portion 34, which is arranged at the end 48 of the Verspannelement 51 opposite end 49 of the bearing pin 47.
  • the quick release device 56 has a fixing device 57 for axially fixing the bearing pin 47 and an actuator 62 acting on the fixing device 57 for releasing the bearing pin 47 by the fixing device 57.
  • the actuating member 62 is a pushbutton axially displaceable along the pivot axis 12, upon actuation of which the fixing device 57 can be displaced from a fixing position engaged with the bearing pin 47 for the axial fixing of the bearing pin 47 into a release position for releasing the bearing pin 47.
  • In the release position of the fixing device 57 of the bearing pin 47 is axially displaceable, wherein the tension of the clamping portion as well as the blocking of the pivot joint 46 is solved simultaneously.
  • the fixing device 57 comprises three, with respect to the pivot axis 12 of the pivot joint 46 radially deflectable, radially outward to the pivot axis 12 and circumferentially uniformly distributed evenly distributed pivot members 58, each one engageable with the bearing pin 47 in abutment locking portion 59 and one with the actuator 62nd have engageable control section 60.
  • each Swivel element 58 has between its locking portion 59 and its control portion 60 a pivot bearing 61 about which the corresponding pivot member 58 is pivotable.
  • a groove for a radially encircling rubber ring is provided as a spring element 66 which spring the detent 59 of the pivot members 58 in the direction of the pivot axis 12 and the pivot elements 58 in the fixing position for the axial fixation of the bearing pin 47 forces.
  • the fixing device 57 further has a guide element 63 with three radially outwardly directed, to the pivot axis 12 toward open guide recesses 64 for guiding the radially deflectable pivot elements 58.
  • the bearing pin 47 is provided at its the fixing device 57 facing the end 49 partially with an external profile in the form of a Sge leopardgewindes.
  • the pivoting elements 58 are provided at their locking sections 59 with a profiling which can be brought into engagement with the external profiling and which is likewise designed as a sawtooth threaded section.
  • the clamping band is placed around the corresponding section 8 of the power tool 7 and then the bearing pin 47 is inserted in the direction of the leg 33 of the handle member 31 in the fixing device 56.
  • the pivot elements 58 deviate radially outward. Due to the spring action of the same but they rest continuously with their profiling in the outer profiling on the bearing pin 47 a. With a few, usually with only one revolution of the Verspannements 51 of the auxiliary handle 11 is fixed to the power tool 7.
  • the actuator 62 is offset by pressure in the direction of the arrow 16 and in the direction of the clamping portion 21 axially along the pivot axis 12.
  • the actuating member 62 acts on the control sections 60 of the pivot elements 58, the locking sections 59 due to pivot this radially outward relative movement.
  • the quick release device 56, the pivot joint 46 is released and the tension of the clamping portion 21 is released.
  • the auxiliary handle 11 can be realigned in this position of the quick release device 56 in its orientation with respect to the power tool 7 or removed from this.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Clamps And Clips (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Surgical Instruments (AREA)
  • Earth Drilling (AREA)
  • Massaging Devices (AREA)
  • Table Equipment (AREA)
  • Walking Sticks, Umbrellas, And Fans (AREA)

Claims (8)

  1. Poignée auxiliaire pour une machine-outil manuelle (7) comportant :
    une partie de serrage (21) pour fixer la poignée auxiliaire (11) sur une partie de la machine-outil manuelle (7),
    un élément de prise (31) pour tenir la poignée auxiliaire (11),
    une articulation pivotante et blocable (46), agencée entre la partie de serrage (21) et l'élément de prise (31), laquelle articulation comporte un boulon de palier (47),
    un élément de mise sous tension (51) pour serrer et desserrer la partie de serrage (21) qui est agencée sur une extrémité (48) du boulon de palier (47), et
    un dispositif de blocage (41) pour bloquer ou libérer l'articulation pivotante (46),
    un dispositif de libération rapide (56), indépendant de l'élément de mise sous tension (51) pour le dispositif de blocage (41) et la partie de serrage (21), étant prévu pour amener le dispositif de blocage (41) dans la position libérant l'articulation pivotante (46) et pour desserrer la partie de serrage (21),
    dans laquelle le dispositif de libération rapide (56) comporte un dispositif de fixation (57) pour fixer axialement le boulon de palier (47) et un organe d'actionnement (62) agissant sur le dispositif de fixation (57) pour libérer le boulon de palier (47) par l'intermédiaire du dispositif de fixation (57),
    caractérisée en ce que l'organe d'actionnement (62) est prévu sur l'extrémité (49) du boulon de palier (47) opposée à l'extrémité (48) de l'élément de mise sous tension (51).
  2. Poignée auxiliaire selon la revendication 1, caractérisée en ce que l'organe d'actionnement (62) comporte un bouton-poussoir pouvant être déplacé axialement le long de l'axe de pivotement (12) de l'articulation pivotante (46).
  3. Poignée auxiliaire selon l'une quelconque des revendications 1 ou 2, caractérisée en ce que le dispositif de fixation (57) comporte au moins un élément pivotant (58) pouvant dévier radialement par rapport à l'axe de pivotement (12) de l'articulation pivotante (46), ayant une partie d'arrêt (59) pouvant venir en contact avec le boulon de palier (47) ainsi qu'une partie de commande (60) pouvant venir en contact avec l'organe d'actionnement (62).
  4. Poignée auxiliaire selon la revendication 3, caractérisée en ce que le dispositif de fixation (57) comporte plusieurs éléments pivotants (58) pouvant dévier radialement, lesquels sont agencés radialement à l'extérieur de l'axe de pivotement (12).
  5. Poignée auxiliaire selon la revendication 3 ou 4, caractérisée en ce qu'un élément de ressort (66) est prévu, lequel rappelle la partie d'arrêt (59) du au moins un élément pivotant (58) en direction de l'axe de pivotement (12).
  6. Poignée auxiliaire selon l'une quelconque des revendications 3 à 5, caractérisée en ce que le boulon de palier (47) présente, au moins dans certaines zones, un profil extérieur et le au moins un élément pivotant (58) présente, au niveau de sa partie d'arrêt (59), un profil pouvant venir en prise avec le profil extérieur.
  7. Poignée auxiliaire selon la revendication 6, caractérisée en ce que le profil extérieur du boulon de palier (47) et/ou le profil sur la partie d'arrêt (59) du au moins un élément pivotant (58) est un filet en dent de scie.
  8. Poignée auxiliaire selon l'une quelconque des revendications 3 à 7, caractérisée en ce que le dispositif de fixation (57) comporte un élément de guidage (63) ayant au moins un évidement de guidage (64) orienté radialement vers l'extérieur, ouvert vers l'axe de pivotement (12), pour guider le au moins un élément pivotant (58) pouvant être dévié radialement.
EP09168070A 2008-09-15 2009-08-18 Poignée supplémentaire pour une machine-outil manuelle Active EP2163358B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102008042113A DE102008042113A1 (de) 2008-09-15 2008-09-15 Zusatzhandgriff für eine Handwerkzeugmaschine

Publications (2)

Publication Number Publication Date
EP2163358A1 EP2163358A1 (fr) 2010-03-17
EP2163358B1 true EP2163358B1 (fr) 2011-05-04

Family

ID=41061315

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09168070A Active EP2163358B1 (fr) 2008-09-15 2009-08-18 Poignée supplémentaire pour une machine-outil manuelle

Country Status (5)

Country Link
US (1) US8186018B2 (fr)
EP (1) EP2163358B1 (fr)
AT (1) ATE507938T1 (fr)
DE (2) DE102008042113A1 (fr)
ES (1) ES2362258T3 (fr)

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JP5000353B2 (ja) * 2007-03-29 2012-08-15 株式会社マキタ 手持ち工具のハンドル
JP5184223B2 (ja) * 2008-06-17 2013-04-17 株式会社マキタ 補助ハンドル
EP2532485B1 (fr) * 2011-06-07 2017-11-01 Black & Decker Inc. Dispositif de montage pour monter une poignée à un outil motorisé
US20120312572A1 (en) * 2011-06-07 2012-12-13 Black & Decker Inc. Handle assembly for power tool
US8667648B2 (en) * 2011-08-26 2014-03-11 Mtd Products Inc Ball handle assembly for a handheld tool
US8567014B1 (en) * 2012-07-06 2013-10-29 San Kong Enterprise Co., Ltd. Foldable handle
EP2803450A1 (fr) * 2013-05-16 2014-11-19 HILTI Aktiengesellschaft Poignée supplémentaire
JP6158698B2 (ja) * 2013-12-25 2017-07-05 株式会社マキタ 付加ハンドルおよび付加ハンドルを備えた作業工具
EP3034245A1 (fr) * 2014-12-19 2016-06-22 HILTI Aktiengesellschaft Poignée supplémentaire
US10442073B2 (en) * 2015-10-16 2019-10-15 Kenneth J. Brauer Rotating handle and related methods
CN215789518U (zh) * 2018-12-10 2022-02-11 米沃奇电动工具公司 冲击工具
JP7320419B2 (ja) 2019-09-27 2023-08-03 株式会社マキタ 回転打撃工具
JP7386027B2 (ja) * 2019-09-27 2023-11-24 株式会社マキタ 回転打撃工具
US11607795B2 (en) * 2019-12-13 2023-03-21 Kenneth J. Brauer Rotating handle and related methods
USD948978S1 (en) 2020-03-17 2022-04-19 Milwaukee Electric Tool Corporation Rotary impact wrench
DE102020115087A1 (de) * 2020-06-05 2021-12-09 Festool Gmbh Handgriffvorrichtung für eine Hand-Werkzeugmaschine
WO2022204118A1 (fr) 2021-03-25 2022-09-29 Milwaukee Electric Tool Corporation Poignée latérale pour outil électrique
US11931879B2 (en) 2021-06-07 2024-03-19 Black & Decker Inc. Power tool dual-trigger operation
JP2023032268A (ja) * 2021-08-26 2023-03-09 株式会社マキタ 動力工具

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DE4422247A1 (de) * 1994-06-24 1996-01-04 Fraunhofer Ges Forschung Führungs- und Haltegriff für handgeführte Geräte
JP3674823B2 (ja) * 1998-12-16 2005-07-27 株式会社マキタ 電動工具用サイドハンドル
US6499172B1 (en) * 1999-09-15 2002-12-31 Wmh Tool Group, Inc. Power tool adjustable handle assembly
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Also Published As

Publication number Publication date
EP2163358A1 (fr) 2010-03-17
DE102008042113A1 (de) 2010-03-18
US20100064482A1 (en) 2010-03-18
US8186018B2 (en) 2012-05-29
DE502009000619D1 (de) 2011-06-16
ES2362258T3 (es) 2011-06-30
ATE507938T1 (de) 2011-05-15

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