EP0156387A2 - Schwingungsdämpfende Griffvorrichtung - Google Patents

Schwingungsdämpfende Griffvorrichtung Download PDF

Info

Publication number
EP0156387A2
EP0156387A2 EP85103706A EP85103706A EP0156387A2 EP 0156387 A2 EP0156387 A2 EP 0156387A2 EP 85103706 A EP85103706 A EP 85103706A EP 85103706 A EP85103706 A EP 85103706A EP 0156387 A2 EP0156387 A2 EP 0156387A2
Authority
EP
European Patent Office
Prior art keywords
mass body
grip
vibration
grip member
vibrations
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.)
Granted
Application number
EP85103706A
Other languages
English (en)
French (fr)
Other versions
EP0156387B1 (de
EP0156387A3 (en
Inventor
Makoto Minamidate
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.)
Yamaguchi Yasuharu
Original Assignee
Yamaguchi Yasuharu
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 JP6102684A external-priority patent/JPS60207778A/ja
Priority claimed from JP59064136A external-priority patent/JPS60207777A/ja
Application filed by Yamaguchi Yasuharu filed Critical Yamaguchi Yasuharu
Publication of EP0156387A2 publication Critical patent/EP0156387A2/de
Publication of EP0156387A3 publication Critical patent/EP0156387A3/en
Application granted granted Critical
Publication of EP0156387B1 publication Critical patent/EP0156387B1/de
Expired legal-status Critical Current

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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

  • vibration-proof grips have been proposed to solve the problems noted above.
  • Prior art vibration-proof grips mostly utilize vibration-proof rubber or springs which are provided between the tool as the source of vibrations and grip.
  • the aim of such vibration-proof grips is to provide a vibration-proof effect of the grip by making the proper vibration frequency of the grip system to be lower than the vibration frequency of the tool body.
  • the invention is predicated on a fact that one or more nodes of vibrations occur in a vibration system, having a multiple freedom, in which a plurality of mass bodies are coupled tc one another via elastic members such as rubber members, when the system is vibrated.
  • the center of a grip member is located at a position, at which a node of vibrations occurs.
  • an impact mass body is provided in the grip member such that it can strike the grip member that would arise due to variations of the vibration frequency of the vibration source.
  • a vibration-proof grip device which comprises a first mass body mounted on a source of vibrations via a first elastic member made of rubber or the like, a grip member mounted on the first mass body via a second elastic member made of rubber or the like, 2 second mass body mounted on the grip member, and an impact mass body provided in the grip member such that it can strike the inner-walls of the grip member.
  • a vibration-proof grip device which comprises a pair of mass bodies mounted on a source of vibrations via respective first elastic members made of rubber or the like, a pair of rods extending from the respective mass bodies toward each other, second elastic members. made of rubber or the like and each mounted on the outer periphery of each rod, a cylindrical grip member connecting the two second elastic members, and an impact pass body provided in the grip member between the two rods.
  • Reference numeral 1 designates a tubular body which is mounted on a source of vibrations such as a machine drill.
  • a first elastic member 2 as shown in Fig. 2, which is a cylindrical member made of rubber and is secured by baking to the tubular body 1.
  • Pair nuts 3 are coaxially inserted in and secured to opposite end portions of the first elastic member 2.
  • Each nut 3 has a bottom, and its inner periphery is formed with a female thread. Screwed in each of the nuts 3 is a stem portion 4a of a first mass body 4 having a rod-like shape, as shown in Fig. 3.
  • a portion 4a of the first mass body 4 other than its stem portion 4a is buried in a second elastic member 6 made of rubber, which fills a stem portion of a cylindrical grip member 5.
  • the portion 4b of the first mass body 4 has flanges 4c which serve to prevent detachment of the portion 4b from the second elastic member 6.
  • the grip member 5 has a central partition wall 5a and has an open end opposite the second elastic member 6.
  • a second mass body 7 is mounted in the open end of the grip member 5 to close the opening.
  • the grip member 5 has an inner space 8 which is defined between the partition wall 5a and second mass body 7, and a substantially cylindrical impact mass body 9 is provided in the space 8.
  • the radial dimension of the impact mass body 9 is slightly smaller than the inner diameter dimension of the grip member 5, and also its axial dimension is slightly smaller than the axial dimension of the space 8 between the second mass body 7 and the partition wall 5a.
  • the impact mass body 9 is capable of being vibrated in the space 8 and striking the inner wall of the grip member 5 and second mass body 7.
  • Undesired vibrations are transmitted from the source of vibrations such as machine drill to the tubular body 1.
  • the vibrations transmitted to the tubular body 1 is attenuated by the first elastic member 2 to a certain extent before being transmitted to the opposite side first mass bodies 4.
  • the first mass bodies 4 are vibrated substantially at the same phase as the original vibrations.
  • the vibrations of each first mass body 4 are transmitted through the second elastic member 6 to the grip member 5.
  • the second elastic member 6 intervenes between the first mass body 4 and stem portion of the grip member 5 and the second mass body 7 and impact mass body 9 are provided on the other side of the grip member 5 than the stem side and serve to suppress vibrations or displacement by their inertia.
  • the elasticity of the second elastic member 6, the mass of the second mass body 7 and impact mass body 9 and/or the length of the grip member 5 may be suitably selected such that the other side of the grip member 5 than the stem side, the vibrations of which lags behind the vibrations of the first mass body 4, will vibrate at the opposite phase to and at the same frequency as the first mass body 4.
  • the first mass body 4 which is vibrated with the original vibrations constitutes a loop of vibrations, while the end portion of the grip member 5 other than the stem thereof constitutes a node of vibrations.
  • the original vibrations from the source of vibrations thus can be extremely attenuated.
  • the end portion of the grip member 5 is not substantially vibrated.
  • the vibration mode noted above fails to be realized so that the end portion of the grip member 5 is vibrated.
  • the impact mass body 9 provided in the grip member 5 can provide a vibration-proof effect for a considerably wide vibration frequency range.
  • the impact mass body 9 in the space 8 is vibrated at a different phase from the vibration phase of the grip member 5, so that it strikes the walls of the grip member 5 including the partion wall 5a and also the second mass body 7.
  • Such collision of the impact mass body 9 have an effect of suppressing or attenuating the vibrations of the end portion of the grip member 5.
  • the vibrations of the end portion of the grip member 5 can be effectively prevented over a comparatively wide vibration frequency range of the vibration source.
  • Fig. 4 shows results of measurement of vibratory acceleration transmitted to a prior art grip of a machine drill
  • Fig. 5 shows results of measurement of vibratory acceleration transmitted to the end portion of the grip 5 of this embodiment of the vibration-proof grip device when the device is mounted on the same machine drill.
  • the ordinate is taken for gravitational acceleration
  • the abscissa is taken for time.
  • Fig. 6 shows a second embodiment of the vibration-proof device according to the invention.
  • reference numeral 10 designates a plate-like member which is mounted by bolts on a vibration source such as a leg drill.
  • Pair tubular bodies 11 are mounted on the opposite bent ends of the plate-like member 10.
  • a cylindr-. ical grip member 13 central portion of which is somewhat expanded is provided between the pair tubular bodies 11 in a coaxial relation thereto.
  • the tubular bodies 11 are each filled with a first elastic member 12 made of rubber.
  • Opposite end portions of the grip member 13 are filled with second elastic members 14 made of rubber.
  • the grip member 13 is supported by first mass bodies 15, each of which bridges the associated first and second elastic members 12 and 14. An inner end portion of each first mass body 15 is buried in and secured to the associated second elastic member 14.
  • each first mass body 15 penetrates the first elastic member 12, and a lock nut 16 is fitted on its outer end projecting from the associated first elastic member 12.
  • a sleeve 19 is provided in the see-through hole of the first elastic member 12 which is penetrated by the first mass body 15.
  • the grip member 13 has a pair of partition walls 13a defining a central inner space.
  • An impact mass body 18 is provided in the central inner space. The radial dimension of the impact mass body 18 is slightly smaller than the inner periphery diameter of the wall of the grip member 13 defining the central inner space so that the impact mass body 18 can strike the inner wall of the grip member 13.
  • Vibrations of a vibration source are transmitted through the plate-like member 10 and each tubular body 11 to each first elastic member 12 to be attenuated therein before being transmitted to each first mass body 15.
  • the first mass body 15 undergoes vibrations substantialy at the same phase and at the same frequency as the original vibrations although with a smaller amplitude than the original vibrations.
  • the first mass bodies 15 are vibrated comparatively strongly, but by virtue of the presence of the second elastic member 14 and impact mass body.' 18, a central portion of the grip member 13 is vibrated at the opposite phase to the vibrations of the first mass bodies 15, that is, it constitues a node of vibrations. In other words, the central portion of the grip member 13 is not substantially vibrated, and a sufficient vibration-proof effect can be obtained.
  • Fig. 7 shows results of measurement of vibratory acceleration transmitted to a prior art grip mounted on a leg drill
  • Fig. 8 shows results of measurement of vibratory acceleration transmitted to the central portion of the grip member 13 of this embodiment of the vibration-proof grip device which is mounted on the same leg drill. Again with this embodiment very satisfactory vibration-proof effects are recognized.
  • the grip member 23 is provided at the end with a connector 25, to which an air supply hose can be connected.
  • An on-off valve 26 is provided on a portion of the tube 21 extending between the cylindrical member 20 and grip member 23, and it can open and close a compressed aiar passage.
  • the on-off valve 26 includes a valve member 27 having a see-through hole, a spring 29 urging the valve member 27 against a valve casing 28 and a lever 30 for operating the valve member 27.
  • the impact mass body 24 has a see-through hole serving as a compressed air passage.
  • the curved tube 21 has flexibility so that it can serve the roles of both the first mass body and the first elastic member. Vibrations of the source of vibrations are transmitted through the cylindrical member 20 to the tube 21. Owing to the presence of the elastic member 22 and impact mass body 24, however, a node of vibrations is formed at the end portion of the grip member 23 to provide for the vibration-proof effect. The collision of the impact mass body 24 also provides a vibration suppression effect.
  • Fig. 10 shows results of measurement of vibratory acceleration transmitted to a prior art grip mounted on a pitching hammer
  • Fig. 11 shows results of measurement of vibratory acceleration transmitted to the end of the grip member 23 of this embodiment of the vibration-proof grip device which is mounted on the same pitching hammer. Again with this embodiment, excellent vibration-proof effects could be recognized.
  • the impact mass bodies 9, 18 and 24 have each been a one-piece body, but it is possible to replace the one-piece body with a plurality of washers or steel balls.
  • Fig. 12 shows a modification of the first embodiment, which employs a plurality of washers 31 in lieu of the impact mass body 9.
  • the individual washers 31 will randamly collide with one another, so that it is possible to improve the vibration-proof effect.
  • a plate-like support 42 on which the embodiment of the vibration-proof grip device is mounted, is secured by bolts to the vibration source 41.
  • the plate-like support 42 has a pair of cylindrical casings 43 which are provided symmetrically at its opposite ends. Shafts 44 coaxially penetrate the respective casing 43. A portion of each shaft 44 that extends in the associated casing 43 has a flange 44a.
  • Two first elastic members 45 made of rubber fill the space between the outer periphery of the shaft 44 and inner periphery of the casing 43 such that the ; flange 44a is found between and supported by these elastic members 45.
  • the first elastic members 45 permit vibrations of the shaft 44 in the axial direction of the casing 43. Rings 46 are provided to prevent wear of the shaft 44 and shaft holes of the casing 43 due to contact of the two when the shaft 44 is vibrated.
  • the mass and dimensionsof the mass bodies 54 and impact mass body 52 and/or modullus of elasticity of the first and second elastic members 45 and 50 may be appropriately selected such that the mass bodies 54 will vibrate at the same frequency and the same phase as the vibration source 41 but the impact mass body 52 and grip member 51 will vibrate at the opposite phase to but at the same frequency as the vibrations of the mass bodies 54.
  • the mass bodies 54 constitute a loop of vibrations, while the grip member 51 constitutes a node of vibrations.
  • vibrations transmitted from the vibration source 41 are extremely attenuated and are substantially not transmitted to the grip member 51.
  • the clearance between the impact mass body 52 and grip member 51 is set to a predetermined value, e.g., about 0.5 mm.
  • the clearance is too small, the impact mass body 52 and grip member 51 would be vibrated in unison with each other, so that the vibration attenuation effect due to the collision of the impact mass body 52 can not be expected.
  • the clearance is too large, on the other hand, the frequency of collision of the impact mass body 52 would be too low to be able to suppress vibrations of the grip member 51.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Percussive Tools And Related Accessories (AREA)
EP19850103706 1984-03-30 1985-03-27 Schwingungsdämpfende Griffvorrichtung Expired EP0156387B1 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP6102684A JPS60207778A (ja) 1984-03-30 1984-03-30 防振ハンドル装置
JP61026/84 1984-03-30
JP64136/84 1984-03-31
JP59064136A JPS60207777A (ja) 1984-03-31 1984-03-31 防振ハンドル装置

Publications (3)

Publication Number Publication Date
EP0156387A2 true EP0156387A2 (de) 1985-10-02
EP0156387A3 EP0156387A3 (en) 1987-05-20
EP0156387B1 EP0156387B1 (de) 1990-11-07

Family

ID=26402079

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19850103706 Expired EP0156387B1 (de) 1984-03-30 1985-03-27 Schwingungsdämpfende Griffvorrichtung

Country Status (2)

Country Link
EP (1) EP0156387B1 (de)
DE (1) DE3580380D1 (de)

Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0237842A2 (de) * 1986-03-15 1987-09-23 Robert Bosch Gmbh Handwerkzeugmaschine mit einer Aufnahme für einen Zusatzhandgriff
EP0294351A2 (de) * 1987-06-01 1988-12-07 Breakers A/S Maschinen Handgriff mit Vibrationsdämpfung
EP0455618A1 (de) * 1990-05-04 1991-11-06 Atlas Copco Tools Ab, Stockholm Handgeführte rotierende Schleifmaschine mit Schwingungsdämpfung
GB2243571A (en) * 1990-04-06 1991-11-06 Metabowerke Kg Vibration-cushioned handle
DE9419182U1 (de) * 1994-11-30 1995-01-26 Irmer + Elze Maschinenfabrik GmbH & Co. KG, 32547 Bad Oeynhausen Druckluftwerkzeug
GB2297514A (en) * 1995-02-03 1996-08-07 Bosch Gmbh Robert Detachable vibration-damped handle for a hammer drill
US5732602A (en) * 1996-03-12 1998-03-31 Schwartz; Noah Handle having resilient material incorporated therein
GB2360970A (en) * 2000-02-04 2001-10-10 Bosch Gmbh Robert Vibration-cushioned handle
GB2402098A (en) * 2003-05-21 2004-12-01 Black & Decker Inc Vibration reduction apparatus for power tool
DE202004012400U1 (de) * 2004-08-07 2005-12-22 Metabowerke Gmbh Elektrohandwerkzeuggerät
EP1707323A1 (de) * 2005-03-31 2006-10-04 Makita Corporation Griff
EP1779981A1 (de) * 2005-10-25 2007-05-02 BLACK & DECKER INC. Schwingungsdämpfender Griff für angetriebenes Arbeitsgerät
WO2007080021A1 (de) * 2005-12-29 2007-07-19 Robert Bosch Gmbh Schwingungsreduktion bei elektrowerkzeugen
WO2009019053A1 (de) * 2007-08-06 2009-02-12 Robert Bosch Gmbh Zusatzhandgriffvorrichtung
WO2009043627A1 (de) * 2007-09-28 2009-04-09 Robert Bosch Gmbh Zusatzhandgriffvorrichtung
WO2009043626A1 (de) * 2007-09-26 2009-04-09 Robert Bosch Gmbh Zusatzhandgriffvorrichtung
CN100509303C (zh) * 2005-03-31 2009-07-08 株式会社牧田 握柄
WO2009083338A1 (de) * 2007-12-27 2009-07-09 Robert Bosch Gmbh Zusatzhandgriffvorrichtung
WO2009083303A1 (de) * 2007-12-27 2009-07-09 Robert Bosch Gmbh Zusatzhandgriffvorrichtung
EP2123406A1 (de) * 2008-05-19 2009-11-25 AEG Electric Tools GmbH Vibrationsgedämpfter Halter für Zusatzhandgriff
EP2532484A3 (de) * 2011-06-07 2013-05-08 Black & Decker Inc. Griffanordnung für ein elektrisches Werkzeug
EP1400317B2 (de) † 2002-09-19 2014-03-05 AEG Electric Tools GmbH Zusatzhandgriff
US9061728B2 (en) 2010-03-12 2015-06-23 Trek Bicycle Corporation Bicycle handlebar and grip assembly
US9180586B2 (en) 2011-06-07 2015-11-10 Black & Decker Inc. Handle assembly for power tool
WO2021094069A1 (de) * 2019-11-11 2021-05-20 Simon Jung Griff
US20220117157A1 (en) * 2019-06-04 2022-04-21 Kubota Corporation Work vehicle

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1011819B (de) * 1953-02-17 1957-07-04 Goetzewerke Presslufthandhammer
FR2237734A1 (en) * 1973-07-16 1975-02-14 Inst Nal Rech Securite Oscillating mass shock absorbers for pneumatic drill - two sliding masses sprung above and below flank drill casing
GB2080919A (en) * 1980-06-22 1982-02-10 Seto Kazuto Vibration damping handle
EP0064038A1 (de) * 1981-04-15 1982-11-03 Atlas Copco Aktiebolag Verfahren und Vorrichtung zum Dämpfen von Druckwellen
DE3304849A1 (de) * 1982-02-13 1983-11-24 Kondoh, Susumu Vibroisolierender handgriff

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1011819B (de) * 1953-02-17 1957-07-04 Goetzewerke Presslufthandhammer
FR2237734A1 (en) * 1973-07-16 1975-02-14 Inst Nal Rech Securite Oscillating mass shock absorbers for pneumatic drill - two sliding masses sprung above and below flank drill casing
GB2080919A (en) * 1980-06-22 1982-02-10 Seto Kazuto Vibration damping handle
EP0064038A1 (de) * 1981-04-15 1982-11-03 Atlas Copco Aktiebolag Verfahren und Vorrichtung zum Dämpfen von Druckwellen
DE3304849A1 (de) * 1982-02-13 1983-11-24 Kondoh, Susumu Vibroisolierender handgriff

Cited By (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0237842A2 (de) * 1986-03-15 1987-09-23 Robert Bosch Gmbh Handwerkzeugmaschine mit einer Aufnahme für einen Zusatzhandgriff
EP0237842A3 (de) * 1986-03-15 1989-04-12 Robert Bosch Gmbh Handwerkzeugmaschine mit einer Aufnahme für einen Zusatzhandgriff
EP0294351A2 (de) * 1987-06-01 1988-12-07 Breakers A/S Maschinen Handgriff mit Vibrationsdämpfung
EP0294351A3 (en) * 1987-06-01 1990-04-25 A/S Wejra Vibration dampened machine handle
GB2243571A (en) * 1990-04-06 1991-11-06 Metabowerke Kg Vibration-cushioned handle
GB2243571B (en) * 1990-04-06 1994-05-25 Metabowerke Kg Vibration-cushioned handle
EP0455618A1 (de) * 1990-05-04 1991-11-06 Atlas Copco Tools Ab, Stockholm Handgeführte rotierende Schleifmaschine mit Schwingungsdämpfung
DE9419182U1 (de) * 1994-11-30 1995-01-26 Irmer + Elze Maschinenfabrik GmbH & Co. KG, 32547 Bad Oeynhausen Druckluftwerkzeug
GB2297514A (en) * 1995-02-03 1996-08-07 Bosch Gmbh Robert Detachable vibration-damped handle for a hammer drill
US5732602A (en) * 1996-03-12 1998-03-31 Schwartz; Noah Handle having resilient material incorporated therein
US7740087B2 (en) 2000-02-04 2010-06-22 Robert Bosch Gmbh Hand power tool with at least one handle
GB2360970A (en) * 2000-02-04 2001-10-10 Bosch Gmbh Robert Vibration-cushioned handle
GB2360970B (en) * 2000-02-04 2002-06-12 Bosch Gmbh Robert Hand-held power tool having at least one handle
EP1400317B2 (de) † 2002-09-19 2014-03-05 AEG Electric Tools GmbH Zusatzhandgriff
GB2402098B (en) * 2003-05-21 2007-10-17 Black & Decker Inc Vibration reduction apparatus for power tool and power tool incorporating such apparatus
GB2402098A (en) * 2003-05-21 2004-12-01 Black & Decker Inc Vibration reduction apparatus for power tool
DE202004012400U1 (de) * 2004-08-07 2005-12-22 Metabowerke Gmbh Elektrohandwerkzeuggerät
CN100509303C (zh) * 2005-03-31 2009-07-08 株式会社牧田 握柄
EP1997592A1 (de) * 2005-03-31 2008-12-03 Makita Corporation Griff
EP1707323A1 (de) * 2005-03-31 2006-10-04 Makita Corporation Griff
US7252156B2 (en) 2005-03-31 2007-08-07 Makita Corporation Vibration isolation handle
EP1779981A1 (de) * 2005-10-25 2007-05-02 BLACK & DECKER INC. Schwingungsdämpfender Griff für angetriebenes Arbeitsgerät
WO2007080021A1 (de) * 2005-12-29 2007-07-19 Robert Bosch Gmbh Schwingungsreduktion bei elektrowerkzeugen
WO2009019053A1 (de) * 2007-08-06 2009-02-12 Robert Bosch Gmbh Zusatzhandgriffvorrichtung
WO2009043626A1 (de) * 2007-09-26 2009-04-09 Robert Bosch Gmbh Zusatzhandgriffvorrichtung
WO2009043627A1 (de) * 2007-09-28 2009-04-09 Robert Bosch Gmbh Zusatzhandgriffvorrichtung
WO2009083303A1 (de) * 2007-12-27 2009-07-09 Robert Bosch Gmbh Zusatzhandgriffvorrichtung
WO2009083338A1 (de) * 2007-12-27 2009-07-09 Robert Bosch Gmbh Zusatzhandgriffvorrichtung
EP2123406A1 (de) * 2008-05-19 2009-11-25 AEG Electric Tools GmbH Vibrationsgedämpfter Halter für Zusatzhandgriff
US8256528B2 (en) 2008-05-19 2012-09-04 Aeg Electric Tools Gmbh Vibration-damped holder for additional handle
US9061728B2 (en) 2010-03-12 2015-06-23 Trek Bicycle Corporation Bicycle handlebar and grip assembly
EP2532484A3 (de) * 2011-06-07 2013-05-08 Black & Decker Inc. Griffanordnung für ein elektrisches Werkzeug
US9180586B2 (en) 2011-06-07 2015-11-10 Black & Decker Inc. Handle assembly for power tool
US20220117157A1 (en) * 2019-06-04 2022-04-21 Kubota Corporation Work vehicle
US11957074B2 (en) * 2019-06-04 2024-04-16 Kubota Corporation Work vehicle
WO2021094069A1 (de) * 2019-11-11 2021-05-20 Simon Jung Griff

Also Published As

Publication number Publication date
EP0156387B1 (de) 1990-11-07
EP0156387A3 (en) 1987-05-20
DE3580380D1 (de) 1990-12-13

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