EP3034245A1 - Poignée supplémentaire - Google Patents

Poignée supplémentaire Download PDF

Info

Publication number
EP3034245A1
EP3034245A1 EP14199153.9A EP14199153A EP3034245A1 EP 3034245 A1 EP3034245 A1 EP 3034245A1 EP 14199153 A EP14199153 A EP 14199153A EP 3034245 A1 EP3034245 A1 EP 3034245A1
Authority
EP
European Patent Office
Prior art keywords
handle
solid
bar
plastic
joints
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.)
Withdrawn
Application number
EP14199153.9A
Other languages
German (de)
English (en)
Inventor
Steffen Geiger
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
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 Hilti AG filed Critical Hilti AG
Priority to EP14199153.9A priority Critical patent/EP3034245A1/fr
Priority to US15/537,244 priority patent/US10093014B2/en
Priority to PCT/EP2015/079741 priority patent/WO2016096819A1/fr
Priority to CN201580069551.6A priority patent/CN107107328A/zh
Priority to EP15808659.5A priority patent/EP3233384B1/fr
Publication of EP3034245A1 publication Critical patent/EP3034245A1/fr
Withdrawn legal-status Critical Current

Links

Images

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
    • B25F5/006—Vibration damping means
    • 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 present invention relates to a frame or bow-shaped auxiliary handle for a hand tool, in particular a chiseling hand tool.
  • the auxiliary handle should dampen the vibrations in addition to good leadership properties.
  • the auxiliary handle according to the invention has a frame-shaped handle having a handle bar for gripping by a user, a cross bar and two flanks connecting the handle bar with the cross bar.
  • a loop-shaped clamping element is attached for application to a neck of the power tool.
  • a tensioning mechanism serves to tension the tensioning element around the neck of the power tool.
  • the frame-shaped handle has a molded from a first plastic frame-shaped base body, each having a solid-state joint in the flanks.
  • a casing made of a second plastic surrounds the frame-shaped main body in the region of the handle bar and the flanks.
  • the two solid joints support the handle bar against unwanted tilting movements and still allow damping along the most heavily loaded direction, namely the working axis of the power tool.
  • the solid joints may be formed by a constriction of the body along a direction perpendicular to a plane defined by the handle bar and the crossbar plane.
  • the constriction is preferably perpendicular to a plane spanned by the frame-shaped handle.
  • a dimension of the body perpendicular to a plane defined by the handle bar and the crossbar in the area of the solid joints may be between 10% and 25% of the dimension of the body perpendicular to the plane in the region of the handle bar.
  • the rigidity of the handlebar is accordingly many times higher along the direction.
  • the solid-state joints may be formed wavy in order to obtain a damping in a movement of the handle bar in the direction of the handlebar.
  • the auxiliary handle may be characterized in that the solid-state joints in a plane perpendicular to the pivot axis are completely filled with the first plastic and the second plastic, wherein a proportion of the first plastic is between 10% below 20%. In the pivoting direction, the solid-state joint preferably consists predominantly of a softer plastic.
  • the handle may have a circular or elliptical cross-section in the area of the solid-state joints with a maximum difference of the major half-axis to the smaller half-axis of 10%, the cross-section of the main body and the second plastic is completely filled.
  • Fig. 1 shows schematically a hammer drill 1 as an example of a hand tool, to which an auxiliary handle 2 is attached.
  • the hammer drill 1 has a tool holder 3 in which, for example, a drill 4 or another tool can be received on a working axis 5.
  • a primary handle 6 is at least partially disposed on the working axis 5.
  • the primary handle 6 is permanently attached to a side facing away from the tool holder 3 side of a machine housing 7.
  • the user can guide the hammer drill 1 by pressing the handle 6 in the working direction 8 .
  • the auxiliary handle 2 can be attached to the machine housing 7 if necessary.
  • the machine housing 7 preferably has adjacent to the tool holder 3, a cylindrical portion, hereinafter referred to as neck 9 .
  • the exemplary additional handle 2 can be attached to the neck 9 of the hammer drill 1 without tools and released again.
  • the exemplary additional handle 2 has a loop or annular clamping element 10, for example, an elastic strap 11 or a rigid clamp.
  • the clamping element 11 has an axis 12 which extends substantially perpendicular to the clamping element 11 and through the center thereof.
  • a clamping mechanism 10 shortens the circumference of the clamping element 11, whereby the auxiliary handle 2 is fixed to the neck 9 .
  • the exemplary tensioning mechanism 10 pulls together with an anchor rod 13 open ends 14 of the tensioning band 11 .
  • the user can operate the anchor rod with a clamping lever 15 .
  • a coil spring 16 can compensate for tolerances in the circumference of the neck and thereby different clamping forces.
  • the auxiliary handle 2 has a frame-shaped handle 17.
  • a longitudinal side of the handle 17 forms a gripping handle bar 18.
  • the handle bar 18 is substantially cylindrical. Diameter and length of the handle bar 18 are designed in view of ergonomic requirements of a gripping hand.
  • a one-piece or two-part crossbar 19 forms a handle bar 18 opposite longitudinal side of the handle 17. Das Clamping element 11 is fixed to the crossbar 19 , preferably in the middle of the crossbar 19.
  • the handlebar 18 and the cross bar 19 can be parallel to each other or as shown, the longitudinal axes 20, 21 inclined at an angle up to 20 degrees, for example of at least 5 degrees be.
  • the handle bar 18 and the cross bar 19 lie in a plane E (sectional plane II-II), which is spanned by the longitudinal axes 21 thereof.
  • the plane E is perpendicular to the axis 12 or if the clamping element 11 relative to the handle 6 about the cross bar 19 is tilted, inclined by at least 45 degrees.
  • the plane E is correspondingly perpendicular to the working axis 5 or inclined by at least 45 degrees to the working axis 5 of the hammer drill 1 .
  • the handle bar 18 and the crossbar 19 are connected by two substantially cylindrical flanks 22 to the frame.
  • the flanks 22 are preferably parallel to each other.
  • the flanks 22 of the frame-shaped handle 17 containing two solid-body joints 23.
  • the solid-state joints 23 connecting the handle bar 18 with the cross bar 19 along the axes 24 of compound solid-body joints 23 are preferably parallel to each other.
  • the solid joints 23 allow the handle bar 18 to spring about a pivot axis 25 passing through the two solid hinges 23.
  • the pivot axis 25 is preferably parallel to the crossbar 19 and lies in the plane E.
  • the handle bar 18 can be resilient under load perpendicular to the plane E. be deflected about the pivot axis 25 .
  • the frame-shaped handle 17 has a monolithic, contiguous body 26, which forms the handle bar 18, the cross bar 19 and the two solid joints 23 .
  • the main body 26 is preferably molded from a rigid plastic.
  • the plastic is for example polyamide.
  • the main body 26 is hollow in the region of the crossbar 19 ( Fig. 4 ).
  • the tensioning mechanism 10 may be disposed in the cavity 27 of the crossbar 19 .
  • a wall thickness 28 of the main body 26 is preferably in the range of 2 mm to 5 mm.
  • the diameter 29 of the cavity 27 may be greater than the wall thickness 28 .
  • the diameter 29 is at least five times, advantageously up to ten times, larger than the wall thickness 28.
  • the cavity 27 preferably also extends into the angled ends of the transverse rod 19, to which the solid-state joints 23 act .
  • the handle bar 18 is also hollow ( Fig. 5 ).
  • the cavity 27 extends over the entire length of the handle bar 18 and preferably over the curved ends of the handle bar 18 to the solid state joints 23.
  • the wall thickness 28 may be selected for the handle bar 18 equal to the crossbar 19 .
  • the diameter 30 of the cavity 27 and the handle bar 18 may be over the length in terms of ergonomic Views of a gripping hand vary.
  • the outer diameter 31 is preferably in the range between 25 mm to 40 mm.
  • the solid joints 23 are formed by the main body 26 .
  • the main body 26 is solid in the region of the solid-state joint 23 and has a significantly lower thickness 32 compared to the outer diameters 31 of the crossbar 19 and the handle bar 18.
  • the solid-state joint 23 may be referred to as flat.
  • the thickness 32 is determined in the direction 33 perpendicular to the frame-shaped handle 17, ie the plane E.
  • the thickness 32 is approximately equal to the wall thickness 28 in the region of the cross bar 19 or the handlebar 18.
  • the thickness 32 is thus in the range of 10% to 25% of the outer diameter 31 of the handle bar 18th
  • the solid joints 23 may be formed wavy.
  • the wave trains are parallel to the pivot axis 25.
  • the solid-state joint 23 rises and falls along the connection axis 24 perpendicular to the plane E.
  • the length of the solid-body joint 23 is greater than the distance 34 between the handle bar 18 and the cross bar 19 is formed.
  • the solid-state joint 23 can deflect along the connection axis 24 .
  • the solid joints 23 are rigid along the pivot axis 25 .
  • the width 35, ie the dimension along the pivot axis 25, the solid joints 23 is approximately equal to the outer diameter 31 of the handle bar 18.
  • the solid joints 23 are thus substantially plane to the plane E.
  • the width 35 and the distance between the two solid joints 23 to each other the pivot axis 25 provide a high torsional rigidity. The distance is largely equal to the length of the handle bar 18th
  • the handle bar 18 is coated with a thin layer 36 of a soft plastic.
  • the soft plastic is for example rubber or synthetic rubber.
  • the soft plastic has no supporting function, but improves the haptic feel.
  • a coefficient of friction of the soft plastic with skin and textiles is preferably higher than the coefficient of friction of the hard plastic with skin and textiles in order to avoid slippage of a hand on the handle bar 18 .
  • the plastic can have a vibration-damping effect.
  • the soft layer 36 has a low thickness, for example in the range between 0.5 mm and 2 mm.
  • the handle 17 has on the flanks 22, ie in the region of the solid-state joint 23, a similar cross section as in the region of the handle bar 18.
  • the outer dimensions 37 of the flanks 22, also in the vertical direction 33, are approximately equal to the associated outer dimensions of the handle bar 18 and the crossbar 19.
  • the outer dimension 37 of the edge 22 is in terms of magnitude between the two outer diameters 31 (see. Fig. 3 ).
  • the main body 26 is encapsulated in the region of the solid-state joint 23 with the soft plastic.
  • the soft plastic is applied with a thickness 38 , which compensates the difference of the flat body 26 to the dimensions in the region of the handle bar 18 .
  • the thickness 38, the dimension perpendicular to the plane E, of the sheath 36 is substantially greater than the thickness 32 of the main body 26th
  • the cross section through the handle 17 in the region of the solid-state joint 23 ( FIG. Fig. 6 ) preferably has approximately the same dimensions as the handle bar 18.
  • the cross section is, for example, circular or elliptical, with the larger half axis differing by less than 20% from the smaller half axis.
  • the cross-section of the solid-body joint 23 is completely filled with the plastics, in contrast to the hollow handle bar 18th
  • Fig. 7 schematically shows the structure of the exemplary hammer drill 1.
  • the hammer drill 1 has a tool holder 3, in which a shank end 39 of a tool, for example one of the drill 4, can be used.
  • a primary drive of the hammer drill 1 is a motor 40, which drives a hammer mechanism 41 and an output shaft 42 .
  • a battery pack 43 or a power line provides the motor 40 with power.
  • the pneumatic striking mechanism 41 and preferably the further drive components are arranged within a machine housing 7 .
  • a user can guide the hammer drill 1 by means of a handle 6 , which is fixed to the machine housing 7 .
  • the motor 40 and thus the hammer drill 1 can be taken by means of a system switch 44 in operation.
  • the hammer drill 1 rotates the drill 4 continuously about a working axis 5 and can beat the drill 4 in the direction of impact 8 along the working axis 5 in a substrate.
  • the pneumatic impact mechanism 41 has a pathogen 45 and a racket 46, which are guided in a guide tube 47 along the working axis 5 movable.
  • the exciter 45 and the racket 46 close a pneumatic chamber 48 between them.
  • the exciter 45 is periodically moved back and forth by the motor 40 on the working axis 5 .
  • An eccentric 49 for example, convert the rotational movement of the motor 40 in the linear movement of the exciter 45 .
  • the pneumatic chamber 48 forms an air spring, which binds the racket 46 to the movement of the exciter 45 .
  • the racket 46 strikes in the direction of impact 8 on an anvil 50 or directly on the drill 4 .
EP14199153.9A 2014-12-19 2014-12-19 Poignée supplémentaire Withdrawn EP3034245A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP14199153.9A EP3034245A1 (fr) 2014-12-19 2014-12-19 Poignée supplémentaire
US15/537,244 US10093014B2 (en) 2014-12-19 2015-12-15 Auxiliary handle
PCT/EP2015/079741 WO2016096819A1 (fr) 2014-12-19 2015-12-15 Poignée supplémentaire
CN201580069551.6A CN107107328A (zh) 2014-12-19 2015-12-15 附加手柄
EP15808659.5A EP3233384B1 (fr) 2014-12-19 2015-12-15 Poignée supplémentaire

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP14199153.9A EP3034245A1 (fr) 2014-12-19 2014-12-19 Poignée supplémentaire

Publications (1)

Publication Number Publication Date
EP3034245A1 true EP3034245A1 (fr) 2016-06-22

Family

ID=52133992

Family Applications (2)

Application Number Title Priority Date Filing Date
EP14199153.9A Withdrawn EP3034245A1 (fr) 2014-12-19 2014-12-19 Poignée supplémentaire
EP15808659.5A Active EP3233384B1 (fr) 2014-12-19 2015-12-15 Poignée supplémentaire

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP15808659.5A Active EP3233384B1 (fr) 2014-12-19 2015-12-15 Poignée supplémentaire

Country Status (4)

Country Link
US (1) US10093014B2 (fr)
EP (2) EP3034245A1 (fr)
CN (1) CN107107328A (fr)
WO (1) WO2016096819A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4245468A1 (fr) * 2022-03-15 2023-09-20 Hilti Aktiengesellschaft Poignée latérale pour une machine-outil portative électrique

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10442073B2 (en) * 2015-10-16 2019-10-15 Kenneth J. Brauer Rotating handle and related methods
EP3756833A1 (fr) * 2019-06-26 2020-12-30 Hilti Aktiengesellschaft Poignée latérale pour une machine portative électrique
US11607795B2 (en) * 2019-12-13 2023-03-21 Kenneth J. Brauer Rotating handle and related methods
US11453111B2 (en) * 2021-01-15 2022-09-27 Ingersoll-Rand Industrial U.S., Inc. Auxiliary handle for a power tool
EP4313494A1 (fr) 2021-03-25 2024-02-07 Milwaukee Electric Tool Corporation Poignée latérale pour outil électrique
EP4163060A1 (fr) 2021-10-05 2023-04-12 Hilti Aktiengesellschaft Poignée supplémentaire pour une machine-outil portative

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1400317A1 (fr) * 2002-09-19 2004-03-24 Atlas Copco Electric Tools GmbH Poignée auxiliaire
DE102006055524A1 (de) * 2006-11-24 2008-05-29 Robert Bosch Gmbh Zusatzhandgriff für eine Handwerkzeugmaschine mit Schnellverstellung durch Überrastung
EP2163357A1 (fr) * 2008-09-15 2010-03-17 HILTI Aktiengesellschaft Poignée supplémentaire pour une machine-outil manuelle
US7823256B2 (en) 2006-11-22 2010-11-02 Robert Bosch Gmbh Auxiliary handle with eccentric clamping lever for a hand-held power tool
US20120312572A1 (en) * 2011-06-07 2012-12-13 Black & Decker Inc. Handle assembly for power tool

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10106050B4 (de) * 2001-02-09 2017-02-16 Hilti Aktiengesellschaft Handwerkzeugmaschine mit einem Zusatzhandgriff
GB2407789A (en) * 2003-11-04 2005-05-11 Black & Decker Inc Vibration reduction apparatus for a power tool
DE102006055516A1 (de) * 2006-11-24 2008-05-29 Robert Bosch Gmbh Zusatzhandgriff für eine Handwerkzeugmaschine mit Schnellverstellung durch zwei Gewinde
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
JP5171397B2 (ja) * 2007-09-18 2013-03-27 株式会社マキタ 手持式作業工具
DE102007060057A1 (de) * 2007-12-13 2009-06-18 Robert Bosch Gmbh Handwerkzeugmaschine
JP5184223B2 (ja) * 2008-06-17 2013-04-17 株式会社マキタ 補助ハンドル
DE102008042113A1 (de) * 2008-09-15 2010-03-18 Hilti Aktiengesellschaft Zusatzhandgriff für eine Handwerkzeugmaschine
US8667648B2 (en) * 2011-08-26 2014-03-11 Mtd Products Inc Ball handle assembly for a handheld tool
EP2803450A1 (fr) * 2013-05-16 2014-11-19 HILTI Aktiengesellschaft Poignée supplémentaire
JP6258093B2 (ja) * 2014-03-24 2018-01-10 株式会社マキタ 打撃工具

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1400317A1 (fr) * 2002-09-19 2004-03-24 Atlas Copco Electric Tools GmbH Poignée auxiliaire
US7823256B2 (en) 2006-11-22 2010-11-02 Robert Bosch Gmbh Auxiliary handle with eccentric clamping lever for a hand-held power tool
DE102006055524A1 (de) * 2006-11-24 2008-05-29 Robert Bosch Gmbh Zusatzhandgriff für eine Handwerkzeugmaschine mit Schnellverstellung durch Überrastung
EP2163357A1 (fr) * 2008-09-15 2010-03-17 HILTI Aktiengesellschaft Poignée supplémentaire pour une machine-outil manuelle
US20120312572A1 (en) * 2011-06-07 2012-12-13 Black & Decker Inc. Handle assembly for power tool

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4245468A1 (fr) * 2022-03-15 2023-09-20 Hilti Aktiengesellschaft Poignée latérale pour une machine-outil portative électrique
WO2023174723A1 (fr) * 2022-03-15 2023-09-21 Hilti Aktiengesellschaft Poignée latérale pour un outil électrique portatif

Also Published As

Publication number Publication date
US20180050447A1 (en) 2018-02-22
EP3233384A1 (fr) 2017-10-25
WO2016096819A1 (fr) 2016-06-23
CN107107328A (zh) 2017-08-29
EP3233384B1 (fr) 2018-09-26
US10093014B2 (en) 2018-10-09

Similar Documents

Publication Publication Date Title
EP3233384B1 (fr) Poignée supplémentaire
EP1404493B1 (fr) Machine-outil portative presentant une poignee avec un systeme d'amortissement des vibrations
EP2072191B1 (fr) Machine-outil manuelle
DE3312195C2 (fr)
EP1674216B1 (fr) Poignée latérale
EP1414624B1 (fr) Machine portable a poignee antivibration
DE10130548B4 (de) Zusatzhandgriff
EP2007555B1 (fr) Machine outil a main avec poignee avec amortissement des vibrations
EP1800804B1 (fr) Outil à main ayant une poignée avec une suspension à ressort
EP2119537A1 (fr) Machine-outil électrique manuelle
EP1422029A1 (fr) Assemblage de mécanisme de percussion decouplé de vibration
DE102005059180A1 (de) Handwerkzeugmaschine mit einem Antriebsstrang und einer Entkopplungseinheit
EP1882559A1 (fr) Outil à main doté d'un dispositif de découplage
DE102007000093A1 (de) Handwerkzeuggerät
DE102010040173A1 (de) Handwerkzeugmaschine
DE3505181A1 (de) Schwingungen erzeugendes handwerkzeug
EP2253430A1 (fr) Machine-outil électrique, notamment perceuse manuelle
EP3043967B1 (fr) Machine-outil manuelle
EP1674210B1 (fr) Outil avec poignée principale mécaniquement découplée
DE102007037043A1 (de) Zusatzhandgriffvorrichtung
DE102006034078A1 (de) Schleifhandwerkzeugmaschine sowie Vibrationsentkopplungsvorrichtung einer Schleifhandwerkzeugmaschine
DE10236135B4 (de) Tragbares, handgeführtes Werkzeug
EP2822734B1 (fr) Dispositif de machine-outil portative
DE102010062878B3 (de) Herstellungsverfahren und Tilger
DE10138123A1 (de) Handwerkzeugmaschine mit vibrationsgedämpftem Handgriff

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20161223