EP1800807B1 - Poignée amortissant les vibrations - Google Patents

Poignée amortissant les vibrations Download PDF

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Publication number
EP1800807B1
EP1800807B1 EP06126074A EP06126074A EP1800807B1 EP 1800807 B1 EP1800807 B1 EP 1800807B1 EP 06126074 A EP06126074 A EP 06126074A EP 06126074 A EP06126074 A EP 06126074A EP 1800807 B1 EP1800807 B1 EP 1800807B1
Authority
EP
European Patent Office
Prior art keywords
vibration
handle according
reducing
profile
handle
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
EP06126074A
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German (de)
English (en)
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EP1800807A1 (fr
EP1800807B2 (fr
Inventor
Axel Fischer
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
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Application filed by Hilti AG filed Critical Hilti AG
Publication of EP1800807A1 publication Critical patent/EP1800807A1/fr
Application granted granted 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
    • 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 relates to a handle for use on a vibration generating hand tool, such as an angle grinder, hammer drill or chisel.
  • a vibration generating hand tool such as an angle grinder, hammer drill or chisel.
  • This has a tangible by a user outer sleeve and a support member which extends at least partially within the outer sleeve along a longitudinal axis.
  • the support member is rotatably connected with rotary fasteners, which include, for example, a thread or parts of a tensioning band device.
  • the handle by applying a torque against the power tool connected to this, the hand tool, for example, has a corresponding mating thread or a corresponding receiving surface for the tensioning band device.
  • the handle has a carrier element enclosing elastic vibration reduction device, via which the outer sleeve is held radially spaced from the support element.
  • a handle is in DE 40 11 124-A1 described.
  • the vibration-reducing device has an insulating or damping effect, which ensures that vibrations occurring during operation on the tool device are transmitted only to a greatly reduced part of the outer sleeve. As a result, a more comfortable holding and guiding the tool device during operation is possible.
  • US 2004/0016082 A1 is a side handle known, which has a pin-shaped connecting element which can be fixed via a screw on the housing of an angle grinder.
  • a sleeve-shaped gripping element is held with the interposition of two substantially annular, elastic elements.
  • a cylindrical inner surface of the gripping element is held spaced from the connecting element, whereby a direct vibration transmission from the connecting element is prevented on the gripping element.
  • a disadvantage of the known side handle is that when tightening or loosening the screw relatively easily a maximum torque is achieved, when exceeded, the gripping member rotates relative to the connecting element, without still transmitting a rotary motion. Rather, the elastic elements act from exceeding the maximum torque only as a sliding bearing between the gripping element and connecting element.
  • the present invention has for its object to avoid the disadvantages mentioned in a generic handle with vibration reducing device and to allow the transmission of greater torque.
  • the carrier element has an outer profile with radialconsprofilerhöhungen. These are arranged at least at the axial height of the vibration reduction device to gap to radial mecanicprofilerhöhungen an inner profile of the outer sleeve.
  • the profile elevations can be formed, for example, by individual elements protruding radially from an annular base profile or by a polygonal cross section. When using a polygonal cross section as an outer profile whose corners act against a virtually enclosed circular base profile as a profile increase. When using the same as an inner profile whose corners act accordingly to a polygon cross-section virtually enclosing circular base profile as a profile increase.
  • a rotational outer diameter of the outer profiling which is related to the longitudinal axis, is at least as large as an inner rotational diameter of the inner profiling.
  • the outer profiling is formed by a cylindrical outer wall, on which a plurality of axially aligned outer ribs are arranged.
  • the outer profile is particularly simple and inexpensive to produce.
  • the inner profiling is formed by a cylindrical inner wall, on which a plurality of axially aligned inner ribs are arranged, whereby the inner profiling is particularly simple and inexpensive to produce.
  • the vibration-reducing device has a vibration-reducing body with a closed cross-section, for example star-shaped or wave-shaped, which correlates with the gap-positioning of the outer profiling and the inner profiling.
  • a vibration-reducing body with a closed cross-section, for example star-shaped or wave-shaped, which correlates with the gap-positioning of the outer profiling and the inner profiling.
  • the vibration-reducing body is more easily positioned between the two profilings.
  • achievable during assembly bias by different dimensions more precisely be predetermined.
  • the vibration-reducing body at least partially on a profile thickness that is greater in the unloaded state as a distance between the outer profile and the inner profile in the area concerned.
  • the vibration reducing device is at least partially made of a foamed plastic, which also expensive molds can be produced inexpensively.
  • the vibration reducing device is at least partially made on the basis of cellular polyisocyanate polyaddition products. As a result, a suitable elasticity can be ensured with little wear.
  • the vibration-reducing device preferably has a vibration-reducing collar which extends in the axial direction between a support collar held on the carrier element and the outer sleeve. In this way, a vibration reduction can be achieved in the direction of the longitudinal axis.
  • the support collar is formed on an end portion of the support element, which is connected via a screw connection with the rest of the carrier element. As a result, the vibration reducing device can be mounted particularly easily.
  • the vibration-reducing collar is formed separately from the vibration-reducing body, whereby both elements are easier and less expensive to produce.
  • a material adapted to the respective needs can be used in this way for both elements.
  • a radial step is formed on at least one of the profiling, which forms an axial stop, against which the vibration-reducing body.
  • the vibration-reducing device has a vibration-reducing body at each of two ends of the handle.
  • a secure radial vibration reduction can be ensured over a great length, since a parallel compression is achieved by the two mutually spaced vibration reduction body. In this way, a bending of the outer sleeve relative to the carrier element can be avoided. It is sufficient if the two vibration-reducing body each extend over a small length.
  • rotary fastening means are provided at the two ends, which are connectable to the hand tool.
  • the intended handle for a D-shaped handle for example, used as the main handle of a power tool.
  • Fig. 1 shows a handle 2 in the form of a side handle, which can be attached as needed to a hand tool 4, such as an angle grinder, hammer drill or chisel device.
  • the handle 2 has rotary fastening means 6, which comprise a thread 8 in the form of an external thread and which are connected to an outer sleeve 10.
  • the outer sleeve 10 and the thread 8 extend along a common longitudinal axis A.
  • the rotary fastening means 6 can be connected to counter-fastening means 12 which comprise a counter-thread 14 in the form of an internal thread embedded in the hand-held power tool 4.
  • the rotary fastening means 6 may also have a standard clamping band device which can be clamped to a corresponding receiving region of the hand tool device (not shown).
  • the rotary fastening means 6 are formed on an end piece 16 which is connected to a hand-tool 4 facing the first end 18 of the handle 2 via a screw 20 with a rod-shaped support member 22.
  • the outer sleeve 10 is held with the interposition of a total of 24 designated elastic vibration reduction device.
  • the vibration-reducing device 24 has, at the first end 18 and at a second end 26 of the handle 2 facing away from it, in each case a vibration-reducing body 28 made of foamed plastic, in particular based on cellular polyisocyanate polyaddition products.
  • a vibration-reducing body 28 made of foamed plastic, in particular based on cellular polyisocyanate polyaddition products. This one is like from the Fig. 3 and 4 can be seen, formed substantially annularly with a wave-shaped encircling closed profile, which radially surrounds the support member 22 with respect to the longitudinal axis A in the installed state.
  • a vibration-reducing collar 30 is slid onto the carrier element 22 extending radially beyond the cross-section of the vibration-reducing body 28 and in this area axially between an annular axial stop 32 of the outer sleeve 10 and a support collar 34 is arranged.
  • the two support collar 34 are formed by washers, which are supported at the first end by the end piece 16 and at the second end by a screw 35.
  • the support collar 34 can also be formed integrally with the end piece 16 or with the screw 35, or in the case described above, the use of a tensioning band device may be formed by parts thereof.
  • the vibration-reducing body 28 and the vibration-reducing collar 30 may also be formed integrally at the two ends 18, 26, respectively.
  • the support member 22 is formed as a spline, resulting in an outer profile 36, in which a plurality of rib-shaped radialcetprofilerhöhungen 38 protrude from a cylindrical outer wall 40 of a base body 42 of the support member 22 at equal intervals radially outward.
  • radial steps 51 can be provided both on the outer profiling 36 and on the inner profiling 50 in the region of the vibration-reducing body 28, which, as indicated, each generate an axial stop 53.
  • the vibration bodies 28 can be axially fixed independently of the vibration-reducing collar 30 in order to prevent axial slippage on the carrier element 22 during operation.
  • Fig. 3 internal profiling 50 and outer profiling 36 at least partially a distance a, which is smaller than a arranged in the area radial thickness b of the vibration reduction device 24 in the unloaded state, which is indicated here in phantom.
  • the vibration-reducing properties of the vibration-reducing device 24 acting in the axial direction can be adjusted by appropriate thickness of the vibration-reducing collar 30, or by different spacing of the support collar 34 relative to the respective axial stop 32 of the outer sleeve 10.
  • it is also possible to dimension the profile thickness b corresponding to the distance a in order to be able to install the vibration-reducing elements 28 even without appreciable prestressing.
  • the free ends of the outer profile risers 38 and the inner profile risers 44 define a rotational outside diameter ra and an inside rotation diameter ri, respectively.
  • the rotational outer diameter ra is at least as large as the rotational inner diameter ri, but preferably larger, in order, as shown, to achieve an overlap. In this way, in the case of the interposition of the vibration-reducing body 28, a positive connection between the outer sleeve 10 and the carrier element 22 acting in the circumferential direction U about the longitudinal axis A is obtained in each case.
  • a torque M1 in the circumferential direction U is applied to the outer sleeve 10 about the longitudinal axis A around.
  • This torque M1 is transmitted via the réelleprofilerhöhungen 44 with the interposition of the vibration reducing body 28 on the foundedprofilerhöhungen 38 of the support member 22 and from there to the rotary attachment means 6 on the end piece 16.
  • the above-described form fit between the inner profiling 50 and the outer profiling 36 allows the application of a particularly high mounting torque M1 on the outer sleeve 10 without these slipping in the circumferential direction U on the vibration reduction device 24 relative to the support member 22.
  • the handle 2 can be attached particularly firmly to the hand tool 4.
  • the outer sleeve 10 is held by the vibration reduction device 24 both in the radial and in the axial direction spaced from the carrier element 22.
  • the vibrations which are produced on the handheld power tool 4 and which are transmitted to the carrier element 22 via the rotary fastening means 6 are applied to the outer sleeve 10 only with greatly reduced intensity transferred, whereby a particularly comfortable holding the handle 2 in operation is possible.
  • a particularly high disassembly torque M2 can again be applied thanks to the positive connection between the outer profile 36 and the inner profiling 50, which is directed in the circumferential direction U the mounting torque M1, without the outer sleeve 10 slipping relative to the support member 22.
  • the outer profiling 36 extends over the entire length of the carrier element 22 and the inner profiling 50 over almost the entire length of the outer sleeve 10.
  • the two profiles 36, 50 with respect to the longitudinal axis A only at the axial height the vibration reduction device 24 provide.
  • Fig. 5 shows a second embodiment of the inventive handle 2, wherein the same parts with the same reference numerals and parts having the same function with respect to the first embodiment are designated by 100 increased reference numeral.
  • the handle 2 is here held in a D-shape on the hand tool 4.
  • first rotary fastening means 106 are provided at the first end 18 and second rotary fastening means 107 are provided at the second end, which are inserted into the carrier element 22 as threaded bores.
  • Helical first countermounting means 112 are screwed into the first pivotal fastening means 106, and helical second countermounting means 113 are screwed into the second pivotal fastening means 107.
  • the handle 4 has an identical structure to the embodiment according to Fig. 1 to 4 on.
  • outer sleeve 10 and support member 22 allow in this embodiment the application of a large holding torque MH on the handle, which in turn allows a particularly large tightening torque MA or a particularly large release torque ML on the counter-fastening means 112, 113.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Harvester Elements (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Portable Power Tools In General (AREA)

Claims (14)

  1. Poignée (2) d'un appareil portatif (4), comprenant un manchon extérieur (10) préhensible par un utilisateur, un élément porteur (22) s'étendant au moins en partie à l'intérieur du manchon extérieur (10) suivant un axe longitudinal (A), des moyens de fixation tournants (6) qui sont au moins en partie couplés en rotation à l'élément porteur (22) et permettent d'assujettir la poignée (2) à l'appareil portatif (4), et un dispositif élastique de réduction de vibrations (24) par l'intermédiaire duquel le manchon extérieur (10) est maintenu à distance radiale de l'élément porteur (22), caractérisée en ce que l'élément porteur (22) comporte un profilage extérieur (36) avec des reliefs radiaux de profilage extérieur (38) qui, au moins sur la hauteur axiale du dispositif de réduction de vibrations (24), sont disposés en alternance avec des reliefs radiaux de profilage intérieur (44) d'un profilage intérieur (50) du manchon extérieur (10).
  2. Poignée selon la revendication 1, caractérisée en ce qu'un diamètre extérieur de rotation (ra), passant par l'axe longitudinal (A), du profilage extérieur (36) est au moins égal à un diamètre intérieur ce rotation (ri) du profilage intérieur (50).
  3. Poignée selon la revendication 1 ou 2, caractérisée en ce que le profilage extérieur (36) est formé par une paroi extérieure cylindrique (40) sur laquelle sont disposées plusieurs nervures extérieures orientées axialement.
  4. Poignée selon une des revendications 1 à 3, caractérisée en ce que le profilage intérieur (50) est formé par une paroi intérieure cylindrique (46) sur laquelle sont disposées plusieurs nervures intérieures orientées axialement.
  5. Poignée selon une des revendications 1 à 4, caractérisée en ce que le dispositif de réduction de vibrations (24) comporte un corps de réduction de vibrations (28) avec une section fermée qui correspond au profilage extérieur (36) et au profilage intérieur (50).
  6. Poignée selon une des revendications 1 à 5, caractérisée en ce que le corps de réduction de vibrations (28) possède au moins par endroits une épaisseur de profil (b) qui, à l'état non chargé, est supérieure à une distance (a) entre le profilage extérieur (36) et le profilage intérieur (50) dans la zone concernée.
  7. Poignée selon une des revendications 1 à 6, caractérisée en ce que le dispositif de réduction de vibrations (24) est réalisé au moins en partie en matière plastique moussée.
  8. Poignée selon une des revendications 1 à 7, caractérisée en ce que le dispositif de réduction de vibrations (24) est réalisé au moins en partie à base de produits de polyaddition de polyisocyanates cellulaires.
  9. Poignée selon une des revendications 1 à 8,
    caractérisée en ce que le dispositif de réduction de vibrations (24) comporte un collet de réduction de vibrations (30) qui s'étend dans la direction axiale entre un collet d'appui (34) maintenu contre l'élément porteur (22) et le manchon extérieur (10).
  10. Poignée selon la revendication 9, caractérisée en ce que le collet d'appui (30) se trouve au niveau d'une pièce d'extrémité (16) de l'élément porteur (22), laquelle est reliée au reste de l'élément porteur (22) par l'intermédiaire d'une liaison vissée (20).
  11. Poignée selon la revendication 9 ou 10, caractérisée en ce que le collet de réduction de vibrations (30) est conçu séparément du corps de réduction de vibrations (28).
  12. Poignée selon la revendication 11, caractérisée en ce que sur au moins un des profilages (36, 50) est ménagé un étage radial (51) qui forme une butée axiale (53) contre laquelle prend appui le corps de réduction de vibrations (28).
  13. Poignée selon une des revendications 1 à 12, caractérisée en ce que le dispositif de réduction de vibrations (24) comporte un corps de réduction de vibrations (28) à chacune des deux extrémités (18, 26) de la poignée (2).
  14. Poignée selon la revendication 13, caractérisé en ce qu'aux deux extrémités (18, 26) sont prévus des moyens de fixation tournants (106, 107) qui peuvent être reliés l'appareil portatif (4).
EP06126074.1A 2005-12-23 2006-12-14 Poignée amortissant les vibrations Active EP1800807B2 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102005000202A DE102005000202A1 (de) 2005-12-23 2005-12-23 Handgriff mit Vibrationsminderungseinrichtung

Publications (3)

Publication Number Publication Date
EP1800807A1 EP1800807A1 (fr) 2007-06-27
EP1800807B1 true EP1800807B1 (fr) 2009-07-22
EP1800807B2 EP1800807B2 (fr) 2014-12-31

Family

ID=37876967

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06126074.1A Active EP1800807B2 (fr) 2005-12-23 2006-12-14 Poignée amortissant les vibrations

Country Status (4)

Country Link
US (1) US20070143966A1 (fr)
EP (1) EP1800807B2 (fr)
JP (1) JP2007168069A (fr)
DE (2) DE102005000202A1 (fr)

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EP2532484B1 (fr) * 2011-06-07 2017-01-11 Black & Decker Inc. Assemblage de poignée pour outil électrique
EP2532485B1 (fr) * 2011-06-07 2017-11-01 Black & Decker Inc. Dispositif de montage pour monter une poignée à un outil motorisé
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US8776321B2 (en) * 2011-10-19 2014-07-15 Sidestix Ventures Inc. Ergonomic, shock-absorbing hand grip
US9050062B1 (en) * 2011-12-08 2015-06-09 Gauthier Biomedical, Inc. Modular handle construction
US8966773B2 (en) 2012-07-06 2015-03-03 Techtronic Power Tools Technology Limited Power tool including an anti-vibration handle
JP6095460B2 (ja) * 2013-04-17 2017-03-15 株式会社マキタ ハンドルおよび動力工具
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DE102017128485A1 (de) * 2017-11-30 2019-06-06 Frank Richter Handgriff und Verfahren zu dessen Herstellung
DE102019120765B4 (de) 2018-09-27 2024-02-22 Taiwan Semiconductor Manufacturing Co., Ltd. Verfahren zum bilden eines halbleiterbauelements
CN216442260U (zh) 2019-06-12 2022-05-06 米沃奇电动工具公司 电动工具
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JP2023160447A (ja) * 2022-04-22 2023-11-02 株式会社マキタ 動力工具用のハンドル

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Also Published As

Publication number Publication date
JP2007168069A (ja) 2007-07-05
EP1800807A1 (fr) 2007-06-27
EP1800807B2 (fr) 2014-12-31
DE102005000202A1 (de) 2007-06-28
US20070143966A1 (en) 2007-06-28
DE502006004294D1 (de) 2009-09-03

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