WO2008110546A1 - Poignée présentant un élément d'amortissement avec une unité d'articulation. - Google Patents

Poignée présentant un élément d'amortissement avec une unité d'articulation. Download PDF

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Publication number
WO2008110546A1
WO2008110546A1 PCT/EP2008/052850 EP2008052850W WO2008110546A1 WO 2008110546 A1 WO2008110546 A1 WO 2008110546A1 EP 2008052850 W EP2008052850 W EP 2008052850W WO 2008110546 A1 WO2008110546 A1 WO 2008110546A1
Authority
WO
WIPO (PCT)
Prior art keywords
handle
handle according
damping
elastic
joint
Prior art date
Application number
PCT/EP2008/052850
Other languages
German (de)
English (en)
Inventor
Roswitha Eicher
Stefan Heess
Joerg Maute
Florian Esenwein
Bernhard Eicher
Marcus Schuller
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
Priority claimed from DE202007017264U external-priority patent/DE202007017264U1/de
Application filed by Robert Bosch Gmbh filed Critical Robert Bosch Gmbh
Priority to EP08717597A priority Critical patent/EP2139648B1/fr
Publication of WO2008110546A1 publication Critical patent/WO2008110546A1/fr

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
    • B25F5/006—Vibration damping means
    • 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
    • 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 a handle, in particular additional handle, for a hand tool according to the preamble of claim 1.
  • auxiliary handle for a hand tool with a handle element is described, which is connectable via an insulating device for vibration isolation with a housing of the power tool.
  • the insulating device has a bearing unit via which the
  • .5 handle element is guided in at least one direction.
  • the invention is based on a handle for a portable power tool with a handle element and a fastening element for fastening the
  • the handle is particularly suitable as an additional handle.
  • the hinge unit is a multi-axis hinge unit. This has the advantage that the joint unit has more degrees of freedom than the joint unit known from the prior art of a handle. Particularly preferably, the joint unit is a three-axis joint unit. Thus, the hinge unit has three degrees of freedom and allows movement of the handle member in all directions relative to the fastener.
  • the multi-axis hinge unit is a ball joint.
  • the ball joint advantageously allows a L O relative movement of the handle member to the fastener equally in all directions.
  • the multi-axis hinge unit is elastic. This has the advantage that the joint unit except the
  • the elastic joint unit has the advantage that, after a deflection of the grip element relative to the fastening element, the grip element experiences a restoring force due to the elasticity, so that it returns to its starting position.
  • the multi-axis articulation unit comprising at least a first and a second joint element, is in particular formed elastically in that at least the first joint element or the second joint element is elastic, in particular made of an elastomer.
  • both the first and the second hinge element elastic in particular made of an elastomer.
  • the ball element forms the first joint element, which is mounted in the second joint element, the receptacle in the grip element and fastening element.
  • the elastic multi-axis joint unit is formed by supporting a rigid ball element in an elastic material, in particular an elastomer.
  • the rigid ball element forms the first joint element. It can be formed either on the fastening element or on the handle element 5. Alternatively it can be a separate one
  • Ball element which is connected to either the fastener or the handle member.
  • the elastic receptacle for the rigid ball element forms the second joint element. It can e.g. be molded onto the handle element and / or the fastening element made of a thermoplastic elastomer.
  • the damping element comprises a securing element, which e.g. prevents the separation of the handle member from the fastener in the event of failure of the damping element.
  • the fuse element is e.g. centered
  • the securing element may be designed as a movably mounted, rigid rod, e.g. in the form of a screw, a bolt, etc.
  • the securing element may be formed by a flexible component, such as a flexible band, rope, braid made of metal or plastic.
  • the second damping element preferably comprises at least one spring element.
  • a spring element in particular a package of disc springs can be used.
  • Other spring elements such as leaf springs, coil springs, etc. can also be used
  • damping elements such as elastic material, e.g. Elastomer, foam, or with a fluid, e.g. Air, oil, filled damping cushions can also be used in combination with the multi-axis joint unit.
  • An elastic damping element of an elastic material or of a spring element has the advantage that it so
  • the 35 may be configured so that its bias is adjustable. This can be the Users of the power tool adapt the handle according to the invention to the particular application by increasing or decreasing the bias voltage to achieve a lower or stronger vibration damping.
  • the second damping element may be formed of an elastic material and arranged between the handle and a housing of a power tool.
  • the damping element is formed substantially in the form of a disc which is clamped between the handle member and an outer surface of the housing.
  • the damping element is arranged with hinge unit in the handle.
  • the joint unit is arranged in a housing of the power tool. Both embodiments may possibly
  • L 5 can also be combined, so that both in the case of a
  • Hand tool as well as in the handle a multi-axis joint unit can be found.
  • the fastening element can be designed in different ways. It can be e.g. a threaded bolt, the protruding from the handle
  • a tensioning device may be provided for connecting the handle to the housing of a hand tool machine.
  • the fastening element may be designed in the form of a receiving sleeve with a nut.
  • the receiving sleeve serves to receive a screw which is connectable to the nut.
  • a screw may be attached to the housing of the 30 power tool.
  • the screw is inserted into the receiving sleeve and bolted to the nut.
  • the screw may for example be attached to the housing via a tensioning device.
  • the fastening element may additionally be provided with a carrier element.
  • the fastening element can be accommodated, for example, in a carrier element.
  • the handle according to the invention preferably has the shape of a style, rod or the like.
  • the handle element of the handle has a substantially cylindrical shape. This may be a cylinder in a simple embodiment. In a further embodiment, however, the cylindrical grip element can also be adapted to the ergonomics of the human hand
  • the gripping element can be rotationally symmetrical, so that the handle can be grasped in any orientation by the operator. Alternatively, the grip element may also be so special to the ergonomics of the human hand
  • L 5 be adapted that a first portion of the handle member specifically as
  • Support surface for the palm and a second area serves as a support surface for the fingers.
  • a _0 handle with a one-piece handle member has, for example, a rod-shaped
  • Handle element e.g. made of a thermoplastic material
  • a fastening element at one end of the grip element.
  • a two-part handle element has a handle core made of a hard material, e.g. a thermoplastic, and a handle of a .5 soft material, e.g. an elastic plastic.
  • the handle cover can the
  • Handle core completely or partially surrounded.
  • the hand tool 30 is in particular an angle grinder, a drilling or impact drill or a
  • Screwdriver or drill
  • Figure 1 shows a first embodiment of the handle according to the invention in a schematic representation
  • FIG. 2 shows a second embodiment of the handle according to the invention in Figure 5 schematic representation
  • FIG 3 shows a third embodiment of the handle according to the invention in a schematic representation.
  • Fig. 1 is a first embodiment of a handle according to the invention
  • the handle 100 is suitable as an additional handle for a hand tool (not shown). It comprises a gripping element 20, a fastening element 10 with carrier element 15 and a gripping element 20 and carrier element 15 or fastening element 10
  • the grip element 20 is executed in a style and cylindrical. In the interior of the grip element 20, a cavity 21 is formed.
  • the cavity 21 may optionally be coated with a damping material, e.g. a foam, an elastomer or with a 0 0 fluid (air, water, oil) filled pillows, honeycomb or the like. filled out.
  • a damping material e.g. a foam, an elastomer or with a 0 0 fluid (air, water, oil) filled pillows, honeycomb or the like. filled out.
  • the handle 100 is connectable via a fastening element 10, which is connected to the carrier element 15, with a housing of a hand tool machine.
  • the fastening element 10 is in the embodiment shown .5 a threaded bolt, the free end is provided with a thread and protrudes from the handle 100 and the support member 15 so that it can be screwed into a housing of a power tool.
  • a damping element 30 with at least one hinge unit 32, 52 is provided.
  • the hinge units 32, 52 shown in FIGS. 1 and 2 are three-axis hinge units, which movement of the handle member 20 relative to the fastener
  • the hinge units 32, 52 are designed to be elastic in that at least one component of the multiaxial hinge unit is formed from an elastomer.
  • Fig. 1 shows a first embodiment of an elastic ball joint.
  • an elastic ball element 33 forms a first joint element 38.
  • the ball element 33 forms a connecting element between the grip element 20 and the fastening element 10.
  • the ball element 33 is in a complementary receptacle 34 in the grip element 20 and the
  • the receptacle 34 forms a second
  • the receptacle 34 is formed by the fastener 10 and the handle member 20 each having a substantially hemispherical receptacle 35, 36 have.
  • the ball element 33 is made of an elastomer, for example a thermoplastic elastomer, which
  • Injection molding can be injected.
  • On the handle member 20 may also be provided a screw 22 which is encapsulated by the elastomer.
  • the handle 100 is also equipped with a securing element 40 which, in the event of failure of the damping element 30, prevents the separation of the grip element 20 from the fastening element 10 or the carrier element 15.
  • the securing element 40 is substantially centered in the handle
  • a flexible component e.g. a flexible band, rope
  • Braid or the like made of metal or plastic.
  • Fig. 2 shows a second embodiment of a handle 200 according to the invention with a hinge unit 52 in the form of an elastic ball joint.
  • the first hinge element 38 of the ball joint is constituted by a rigid ball element 53 formed.
  • the rigid ball element 53 is formed on the fastening element 10 in the illustrated embodiment.
  • the receptacle 54 for the ball member 53 forms the second hinge member 39.
  • the receptacle 54 is formed in a complementary to the ball member 53 form of an elastic material 5, such as an elastomer.
  • the recording 54 has accordingly in
  • a second damping element 35 is used as the damping element
  • the second damping element 35 comprises in the illustrated
  • Embodiment a package of disc springs.
  • Other spring elements such as leaf springs, coil springs, etc. can also be used.
  • Other forms of damping elements such as elastic material, e.g. Elastomer, foam, or with a fluid, e.g. Air, oil, stuffed cushioning pads are
  • L 5 can also be used in combination with the multi-axis joint unit 52.
  • Damping element 35 is disposed in the handle member 20 below the hinge unit 52. To the damping element 35, a washer 41 is threaded (not shown) arranged adjacent. Due to the thread, the disc 41 is in its axial position along the longitudinal axis of the handle element 20th
  • the disc 41 can be moved upward to increase the bias on the damping element 35.
  • the disc 41 may be moved down within the handle member 20 to reduce the bias on the damping member 35. This advantageously the bias of the damping element 35 is adjustable
  • Another damping element 37 is provided in the form of a bending bar spring.
  • the flexure spring is connected to the fastener 10 via the ball member 53. At the lower end of the handle member 20, the bending bar spring is supported on a plug 23 from.
  • FIG. 35 A third embodiment of a handle 300 according to the invention with a hinge unit 62 in the form of an elastic ball joint is shown in FIG. Analogous to the embodiment according to FIG. 1, an elastic ball element 33 forms a first joint element 38. Unlike the ball element 33 5 according to FIG. 1, which is located in the handle 100, the ball element is
  • the ball element 33 arranged in a housing 60 of a hand tool, as shown in FIG. 3, wherein the housing 60 is indicated in Fig. 3 only partially.
  • the ball element 33 is accommodated in a complementary receptacle 64 in the housing 60 for this purpose.
  • the receptacle 64 forms a second L O joint element 39.
  • the ball element 33 consists of an elastomer, for example a thermoplastic elastomer, which can be injected into the receptacle 64 by means of an injection molding process.
  • the fastener 10 in the form of a threaded bolt is provided with an L 5 thread (not shown).
  • the elastic ball member 33 has a receptacle 63 with a thread corresponding to the fastening element 10 corresponding internal thread (not shown), so that the fastener 10 in the receptacle 63, and thus in the housing 60 of the power tool, can be screwed. 20
  • a second damping element 55 is also provided, which is formed from an elastic material, in particular from an elastomer.
  • the second damping element 55 is arranged between the grip element 20 and the housing 60 of the power tool. In particular, it is clamped between the grip element 20 and the housing 60. That's it
  • Damping element 55 on the one hand to the flange 15 of the handle member 20, on the other hand on the outer surface 61 of the housing 60 at. It has a passage 56 for the fastening element 10.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Percussive Tools And Related Accessories (AREA)

Abstract

L'invention porte sur une poignée, en particulier une poignée auxiliaire pour une machine outil manuelle avec un élément de saisie (20) et un élément de fixation (10) pour fixer la poignée sur une machine outil manuelle ainsi qu'un élément d'amortissement (30) avec une unité d'articulation (32, 52), l'unité d'articulation (32, 52, 62) étant à plusieurs axes.
PCT/EP2008/052850 2007-03-15 2008-03-11 Poignée présentant un élément d'amortissement avec une unité d'articulation. WO2008110546A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP08717597A EP2139648B1 (fr) 2007-03-15 2008-03-11 Poignée présentant un élément d'amortissement avec une unité d'articulation.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE202007017264.8 2007-03-15
DE202007017264U DE202007017264U1 (de) 2007-03-15 2007-03-15 Handgriff
DE102007059534 2007-12-11
DE102007059534.6 2007-12-11

Publications (1)

Publication Number Publication Date
WO2008110546A1 true WO2008110546A1 (fr) 2008-09-18

Family

ID=39493609

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2008/052850 WO2008110546A1 (fr) 2007-03-15 2008-03-11 Poignée présentant un élément d'amortissement avec une unité d'articulation.

Country Status (1)

Country Link
WO (1) WO2008110546A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2451747A (en) * 2007-08-06 2009-02-11 Bosch Gmbh Robert Auxiliary handle device with vibration dampening
WO2009083308A1 (fr) * 2007-12-27 2009-07-09 Robert Bosch Gmbh Système de poignée auxiliaire

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4011124A1 (de) * 1990-04-06 1991-10-10 Metabowerke Kg Vibrationsgedaempfter handgriff
JP2004249430A (ja) * 2003-02-21 2004-09-09 Hitachi Koki Co Ltd 防振ハンドル
EP1514648A2 (fr) * 2003-09-10 2005-03-16 Makita Corporation Manche sans vibration
US20060113098A1 (en) * 2004-10-29 2006-06-01 Hiroto Inagawa Power tool
EP1707323A1 (fr) * 2005-03-31 2006-10-04 Makita Corporation Poignée
EP1714748A2 (fr) * 2005-04-20 2006-10-25 Makita Corporation Outil rotatif motorisé

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4011124A1 (de) * 1990-04-06 1991-10-10 Metabowerke Kg Vibrationsgedaempfter handgriff
JP2004249430A (ja) * 2003-02-21 2004-09-09 Hitachi Koki Co Ltd 防振ハンドル
EP1514648A2 (fr) * 2003-09-10 2005-03-16 Makita Corporation Manche sans vibration
US20060113098A1 (en) * 2004-10-29 2006-06-01 Hiroto Inagawa Power tool
EP1707323A1 (fr) * 2005-03-31 2006-10-04 Makita Corporation Poignée
EP1714748A2 (fr) * 2005-04-20 2006-10-25 Makita Corporation Outil rotatif motorisé

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2451747A (en) * 2007-08-06 2009-02-11 Bosch Gmbh Robert Auxiliary handle device with vibration dampening
GB2451747B (en) * 2007-08-06 2011-01-05 Bosch Gmbh Robert Auxilary handle device
WO2009083308A1 (fr) * 2007-12-27 2009-07-09 Robert Bosch Gmbh Système de poignée auxiliaire

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