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WO2009074387A2 - Système de poignée supplémentaire - Google Patents

Système de poignée supplémentaire Download PDF

Info

Publication number
WO2009074387A2
WO2009074387A2 PCT/EP2008/064248 EP2008064248W WO2009074387A2 WO 2009074387 A2 WO2009074387 A2 WO 2009074387A2 EP 2008064248 W EP2008064248 W EP 2008064248W WO 2009074387 A2 WO2009074387 A2 WO 2009074387A2
Authority
WO
WIPO (PCT)
Prior art keywords
auxiliary handle
handle device
damping
support
support structure
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.)
Ceased
Application number
PCT/EP2008/064248
Other languages
German (de)
English (en)
Other versions
WO2009074387A3 (fr
Inventor
Roswitha Eicher
Stefan Heess
Joerg Maute
Florian Esenwein
Bernhard Eicher
Marcus Schuller
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Priority to EP08858972A priority Critical patent/EP2222440B1/fr
Publication of WO2009074387A2 publication Critical patent/WO2009074387A2/fr
Publication of WO2009074387A3 publication Critical patent/WO2009074387A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
    • B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
    • B25F5/02—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
    • 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

Definitions

  • the invention is based on an additional handle device according to the preamble of claim 1.
  • the damping unit has damping means for damping vibration.
  • the invention is based on an auxiliary handle device, in particular for a hand-held power tool, with an auxiliary handle and a damping unit, which comprises at least one damping means.
  • the damping means is at least partially formed by a damping pad.
  • an "additional handle” is an area and / or a component and / or an element to be understood, the or to a donning, in particular a grasping, by a hand or several hands of an operator, for the purpose of guiding a hand tool is provided by means of the auxiliary handle device, and in particular next to another handle, in particular the main handle, additionally attachable to the hand tool, the auxiliary handle device is arranged laterally on the hand tool and / or tool without tools by an operator at the hand Machine tool can be mounted or dismounted and / or arranged in a front, near the tool area of the power tool and / or the auxiliary handle is rod-shaped.
  • a "cushioning pad” should be understood to mean, in particular, a structure of the damping means which has an outer shell which surrounds a volume which is preferably filled by a filler which has a combination with the shell and / or vibration damping properties.
  • the filler is particularly advantageously formed from a fluid, such as, for example, from a gas, a liquid and / or particularly advantageously from a gel, etc., and / or from further fillers that appear meaningful to a person skilled in the art.
  • a filler with preferably low flow properties that the damping pad is formed only by the filler Reef range, and thus a high ease of use for an operator can be achieved.
  • the additional handgrip device according to the invention can basically be used in conjunction with all hand-held power tools that appear appropriate to the person skilled in the art, in which, in particular, guidance of hand-held power tools by means of the auxiliary handle is made easier for an operator. Due to its damping characteristic, the auxiliary handle device is particularly advantageous in connection with an angle grinder.
  • the damping means is formed by a gel pad, whereby a flexible, in particular spatial, adaptation of the damping means can be achieved.
  • an advantageous vibration damping can be achieved by means of the gel pad.
  • the auxiliary handle has a grip area with at least one support structure which at least partially surrounds a receiving area for the damping means, whereby an advantageous for the additional handle shaping of the damping cushion can be achieved.
  • an advantageous stiffness of the grip area is achieved by means of the support structure, wherein the grip area is preferably provided for applying a hand of the operator.
  • a "support structure” should be understood to mean, in particular, a structure which has at least one support function and / or which in particular is a framework-like element and / or component, preferably a shaping of the element and / or component, in particular of the damping cushion , is arranged.
  • the support structure has at least one support structure element, which is preferably at least partially formed by a support ring, an advantageous shaping of the damping cushion in a circumferential direction of the auxiliary handle can be achieved.
  • This can be achieved particularly advantageously if the support structure has at least two support rings arranged at a distance from one another.
  • the circumferential direction advantageously extends transversely to a longitudinal extent, in particular a length, of the auxiliary handle.
  • the support structure element is at least partially formed by a support spring, whereby both an advantageous shaping of the damping cushion in the circumferential direction and a preferably elastic, in particular resilient alignment in an axial and / or radial direction can be achieved.
  • a "support spring” is to be understood in particular a thread-like helical spring, which is arranged in the circumferential direction supporting the damping cushion.
  • the damping unit has at least one limiting element which limits the receiving area for the damping means in at least one direction.
  • a further shaping of the damping pad in at least one direction, preferably in an axial direction, can advantageously be achieved.
  • the auxiliary handle device has at least one support element which extends along an axial direction through the receiving area, whereby a rigidity of the auxiliary handle can be achieved structurally simple.
  • An "axial direction” is to be understood here in particular as meaning a direction along a longitudinal extent of the auxiliary handle device.
  • the damping cushion is arranged in a radial direction about the support element, whereby a direct vibration transmission during operation of the power tool from the support member to a handle portion of the auxiliary handle at least can be reduced and / or prevented.
  • the receiving area is adjustable by the limiting element and the support element, it is thus advantageously possible to set a damping parameter of the damping unit, in particular a pretension of the damping means, in particular of the damping cushion.
  • the auxiliary handle has at least one grip end region on which the support element is arranged to be adjustable, as a result of which a damping parameter, in particular a pretension, of the damping cushion can be set.
  • a marking area is to be understood in particular as an area of the supporting element which has at least one preferably optic mark which is provided for transmitting information to an operator.
  • the support structure and / or the damping means on a viewing window whereby in particular in the region of a mark, an advantageous optical information transmission to the operator of the auxiliary handle device can be achieved.
  • FIG. 1 shows a hand tool with an auxiliary handle device according to the invention in a schematic representation, Fig. 2, the auxiliary handle device with a damping unit and a
  • Support structure with several support rings in a perspective sectional view
  • Fig. 3 shows the auxiliary handle device with a damping unit and an alternative support structure with a support spring in a perspective sectional view
  • Fig. 4 the auxiliary handle device with an alternative damping unit in a perspective sectional view.
  • FIG. 1 shows a hand-held power tool 12a formed by an angle grinder in a view from above.
  • the angle grinder comprises a housing 56a and a main handle 54a integrated in the housing 56a.
  • the main handle 54a extends on a side facing away from a tool 58a formed by a cutting tool 58a in the direction of a
  • An auxiliary handle device 10a which extends transversely to the longitudinal direction 62a of the angle grinder, is arranged on a front, tool-near region 64a of the angle grinder.
  • FIG. 2 shows the auxiliary handle device 10a with an additional handle 14a and a damping unit 16a.
  • the damping unit 16a has a damping means 18a which is formed by a damping pad formed by a gel pad 20a.
  • the gel pad 20a comprises an elastic sheath 100a and a filler 102a formed by a gel.
  • the auxiliary handle device 10a or the additional handle 14a has a grip region 22a with a support structure 24a.
  • the support structure 24a surrounds a receiving area 26a for the
  • the support structure 24a has a plurality of support structure elements 28a.
  • the support structure elements 28a are each formed by a support ring 30a, 32a, directly adjacent to each other support rings 30a, 32a are arranged with a distance 68a to each other, which is greater than a ring thickness 70a of the support rings 30a, 32a and particularly advantageously greater than a double ring thickness 70a of the support rings 30a, 32a.
  • the grip portion 22a of the auxiliary handle 14a is formed by the support rings 30a, 32a and the intervening portions 72a of the gel pad 20a, so that an operator's hand can rest directly on the portions 72a of the gel pad 20a and on the elastic sleeve 100a, respectively.
  • the receiving region 26a for the gel pad 20a is in the axial directions 40a, 42a by a respective delimiting element 36a, 38a of the auxiliary handle 14a or the damping unit 18a. borders, wherein the axial directions 40a, 42a are aligned parallel to a main extension direction 74a.
  • the limiting elements 36a, 38a are each formed by a Griffend Siemens 48a, 76a.
  • the auxiliary handle device 10a has a support element 44a, which is formed integrally with a fastening unit 78a.
  • the support element 44a extends along the axial direction 42a from the fastening unit 78a through the grip end region 76a facing the fastening unit 78a, through the receiving region 26a and through the grip end region 48a facing away from the fastening unit 78a.
  • the support element 44a is arranged in the radial direction 46a in a middle region of the auxiliary handle 14a and formed in a bolt-shaped manner. In the radial direction 46a about the support member 44a, the gel pad 20a between the support member 44a and the support structure 24a and the support rings 30a, 32a arranged.
  • the support element 44a has a thread in an end region 80a facing away from the fastening unit 78a, which can be screwed to a mating thread of the grip end region 48a facing away from the fastening unit 78a.
  • the fastening unit 78a has, in addition to a bolt-shaped fastening element 82a, which is provided for fastening the auxiliary handle device 10a to the handheld power tool 12a, a disk-shaped base element 84a.
  • the disc-shaped base element 84a is arranged for this purpose in the axial direction 40a, which extends from one of the grip end regions 48a, 76a in a direction of the fastening unit 78a, to the grip end region 76a facing the fastening unit 78a.
  • the support element 44a has a marking region 50a which is arranged in a middle subregion 86a of the support element 44a along the axial direction 40a, 42a.
  • the marking area 50a comprises a plurality of groove-like markings 88a in the circumferential direction
  • the gel pad 20a has, in a region of the marking area 50a of the support element 44a, a viewing window 52a which is formed by a recess.
  • the recess extends inward in the radial direction 46a from the grip portion 22a to the support member 44a.
  • the Individual markings 88a visible in the viewing window 52a are assigned a defined damping characteristic or a damping parameter of the gel pad 20a, so that the set damping characteristic or the set damping parameter of the gel pad 20a can be displayed for an operator.
  • vibrations and / or vibrations are generated, which are transmitted via the fixing unit 78a on the auxiliary handle device 10a. From the fixing unit 78a, the vibrations and / or vibrations are transmitted to the support member 44a and forwarded by the latter to the damping unit 16a or to the gel pad 20a. Within the gel pad 20a, a vibrational energy of the transmitted
  • auxiliary handle device 1 Ob has an auxiliary handle 14b, a damping unit 16b comprising a cushion pad formed by a gel pad 20b, and a grip portion 22b having a support structure 24b.
  • the support structure 24b comprises a support structure element 28b, which is of a thread-like type
  • Support spring 34b is formed. A distance from individual, in an axial direction 40b, 42b directly adjacent to each other thread revolutions 92b is smaller than a material thickness 90b of a thread turn 92b.
  • the auxiliary handle device 10b has a support element 44b, which is formed integrally with the fastening unit 78b, wherein a disk-shaped base element 84b of the fastening unit 78b is arranged within a grip end region 76b facing the fastening unit 78b.
  • a damping principle or an adjustment of a vibration damping is analogous to the comments on Figure 2.
  • FIG. 4 shows an alternative auxiliary handle device 1 Oc.
  • the auxiliary handle device 10c has an auxiliary handle 14c, a damping unit 16c, which comprises a cushion pad formed by a gel pad 20c, and a grip portion 22c with a support structure 24c.
  • the support structure 24c is formed by a grip sleeve 94c which is formed integrally with grip end regions 48c, 76c of the auxiliary handle 14c.
  • the gel cushion 20c is arranged, wherein an axial limit 40c, 42c of the receiving region 26c for the gel cushion 20c is effected by two limiting elements 36c, 38c formed by a respective rubber cone.
  • the limiting elements 36c, 38c are arranged in the circumferential direction 66c around a support element 44c.
  • the support element 44c or a fastening unit 78c are arranged spaced apart in the radial direction 46c from the grip end region 76c facing the fastening unit 78c, so that a direct vibration transmission from the fastening unit 78c via the support element 44c and the grip end region 76c to the grip region 22c or on the grip sleeve 94c is prevented.
  • the receiving area 26c or a damping parameter and / or a damping property of the gel pad 20c can be set. For this, the has the
  • Fastening unit 78c facing away from limiting elements 38c on a thread which can be screwed with a mating thread of the support member 44c.
  • the support member 44c is formed telescopically abstract.
  • a telescopic extension element 96c facing away from the fastening unit 78c is arranged rotatable relative to further sectional elements 98c arranged closer to the fastening unit 78c, wherein the limiting element 36c facing the fastening unit 78c is arranged on one of the further telescopic extension elements 98c.
  • the delimiting element 38c is displaced by means of the thread in the axial direction 40c, 42c, thereby enlarging or reducing, depending on the direction of rotation, the receiving region 26c of the gel pad 20c or changing a damping parameter of the gel pad 20c ,

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Vibration Prevention Devices (AREA)
  • Sawing (AREA)
  • Steering Devices For Bicycles And Motorcycles (AREA)

Abstract

L'invention concerne un système de poignée supplémentaire, destiné en particulier à une machine-outil portative (12a-c), ledit système comprenant une poignée supplémentaire (14a-c) et une unité d'amortissement (16a-c), qui comprend au moins un moyen d'amortissement (18a-c). Selon l'invention, le moyen d'amortissement (18a-c) est au moins partiellement formé par un coussin amortisseur.
PCT/EP2008/064248 2007-12-13 2008-10-22 Système de poignée supplémentaire Ceased WO2009074387A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP08858972A EP2222440B1 (fr) 2007-12-13 2008-10-22 Système de poignée supplémentaire

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200710060041 DE102007060041A1 (de) 2007-12-13 2007-12-13 Zusatzhandgriffvorrichtung
DE102007060041.2 2007-12-13

Publications (2)

Publication Number Publication Date
WO2009074387A2 true WO2009074387A2 (fr) 2009-06-18
WO2009074387A3 WO2009074387A3 (fr) 2009-07-30

Family

ID=40225422

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2008/064248 Ceased WO2009074387A2 (fr) 2007-12-13 2008-10-22 Système de poignée supplémentaire

Country Status (3)

Country Link
EP (1) EP2222440B1 (fr)
DE (1) DE102007060041A1 (fr)
WO (1) WO2009074387A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US12434369B2 (en) 2021-05-14 2025-10-07 Techtronic Cordless Gp Handle for use with a power tool

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015224006A1 (de) * 2015-12-02 2017-06-08 Robert Bosch Gmbh Handwerkzeugmaschine mit mindestens einem maschinenseitigem Kontaktelement

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19848126A1 (de) * 1998-10-19 2000-04-27 Wilhelm Kaechele Gmbh Elastome Schwingungsgedämpfter Handgriff
DE10055395A1 (de) * 2000-11-09 2002-05-29 Bosch Gmbh Robert Handwerkzeugmaschinenhandgriff
DE10348973A1 (de) * 2003-10-22 2005-05-25 Carl Freudenberg Kg Vibrationsgedämpfter Handgriff
EP1905546A3 (fr) * 2006-09-27 2008-09-03 Robert Bosch Gmbh Poignée
DE102007009169A1 (de) * 2007-02-26 2008-08-28 Robert Bosch Gmbh Handgriff

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US12434369B2 (en) 2021-05-14 2025-10-07 Techtronic Cordless Gp Handle for use with a power tool

Also Published As

Publication number Publication date
EP2222440A2 (fr) 2010-09-01
WO2009074387A3 (fr) 2009-07-30
EP2222440B1 (fr) 2012-10-10
DE102007060041A1 (de) 2009-06-18

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