EP2069109A1 - Machine-outil électrique avec élément de préhension découplé des vibrations - Google Patents

Machine-outil électrique avec élément de préhension découplé des vibrations

Info

Publication number
EP2069109A1
EP2069109A1 EP07788117A EP07788117A EP2069109A1 EP 2069109 A1 EP2069109 A1 EP 2069109A1 EP 07788117 A EP07788117 A EP 07788117A EP 07788117 A EP07788117 A EP 07788117A EP 2069109 A1 EP2069109 A1 EP 2069109A1
Authority
EP
European Patent Office
Prior art keywords
decoupling
electric machine
machine tool
tool according
linear guide
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Withdrawn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
EP07788117A
Other languages
German (de)
English (en)
Inventor
Holger Frank
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
Publication of EP2069109A1 publication Critical patent/EP2069109A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • B25F5/006—Vibration damping means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D2222/00—Materials of the tool or the workpiece
    • B25D2222/54—Plastics
    • B25D2222/57—Elastomers, e.g. rubber
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D2222/00—Materials of the tool or the workpiece
    • B25D2222/54—Plastics
    • B25D2222/69—Foamed polymers, e.g. polyurethane foam

Definitions

  • the invention relates to a power tool, in particular a hand-held rotary hammer, with a base body and a handle element, wherein the base body and the handle member via a pivot bearing and at least one, spaced from a pivot axis of the pivot bearing, vibration decoupling acting decoupling unit are interconnected and the decoupling at least one Linear guide is assigned.
  • a handle member is pivotally mounted on the main body of the hammer drill. The required for this
  • Swivel bearing is located at one end of the approximately U-shaped grip element.
  • a decoupling unit for reducing vibrations that occur during operation of the hammer drill arranged.
  • the decoupling unit has a helical compression spring, which at one end on the base body and with the other end on
  • the bias caused by the helical compression spring is intercepted by means of a linear guide, on the one hand firmly engages the handle member and slidably on the body, wherein at rest, so if a user of the hammer transfers no manual forces on the handle body, the linear guide in a guide direction rigidly on Body abuts.
  • This embodiment has basically proven in practice, but should be further improved in terms of a reduction or isolation of vibrations.
  • the electric machine tool according to the invention is characterized in that the linear guide has at least one linear guide element displaceably guided in an elastic vibration decoupling element.
  • the linear guide no longer forms a relatively rigid bridge between the base body and the grip element, since a vibration-related decoupling is provided due to the elastic vibration decoupling element.
  • the user can precisely transfer executive forces to the power tool, at the same time reducing unwanted vibrations to a very considerable extent.
  • the linear guide element is fixed to the handle element or the base body.
  • the elastic decoupling element is located on the base body or on the grip element.
  • the linear guide element engages displaceably in a receptacle of the vibration decoupling element.
  • This receptacle is preferably formed as a passageway. Accordingly, the linear guide element passes through the passage, wherein it is preferably provided that it has a head which can be supported on the vibration decoupling / support. If the electric machine tool is pressed in the direction of a processing point, the head of the linear guide element lifts off from the vibration decoupling element; laterally, however, the linear guide element is guided in the passage of the elastic vibration decoupling element.
  • the linear guide element is preferably designed as a screw whose screw head forms the aforementioned head.
  • the base body and grip element are acted upon in the region of the decoupling unit by at least one spring element.
  • the spring element acts in such a way that the grip element has the tendency to move around the Swivel pivot axis of the pivot bearing away from the body.
  • the head of the linear guide element is supported on the vibration decoupling element, so that the pivoting movement is limited.
  • the grip element pivots while compressing the spring element a little way in the direction of the base body, wherein the head of the linear guide element can lift or lift off the base body. Laterally, however, the linear guide element is guided vibration damping in the passage of the vibration decoupling element.
  • the spring element is formed here by way of example as a helical compression spring.
  • two linear guide elements may be provided between which the spring element is located.
  • pivot bearing is designed to decouple oscillation, so that no excessive vibrations are transmitted via the connection of the grip element to the base body performing pivot bearing.
  • the pivot bearing has a first bearing part with a bearing channel in which a holding part is mounted with the interposition of at least one elastic vibration decoupling component.
  • the storage channel preferably belongs to the main body.
  • Vibration decoupling component is in particular designed as a decoupling ring, which is located in the bearing channel and supports the holding part vibration-damped.
  • a fastening means is preferably releasably attached in particular, which passes through a bearing opening of a second bearing part of the pivot bearing.
  • the second bearing part preferably belongs to the grip element, while the first bearing part preferably belongs to the base body.
  • the vibration-decoupled held in the bearing channel holding part is therefore used to hold a fastener on which the second bearing part, in particular, therefore, the Ghffelement is attached.
  • the grip element is decoupled with respect to the vibration of the main body in the region of the pivot bearing.
  • FIG. 1 shows a side view in section through a power tool, which is designed as a hammer drill,
  • Figure 2 shows a longitudinal section through a decoupling unit, with a handle element of the hammer drill is held on a base body of the hammer drill and
  • Figure 3 decoupled pivot bearing, here by way of example at the lower end of the handle, with the handle member is also held on the main body of the hammer drill.
  • FIG. 1 shows a power tool 1, which has a base 2, to which a handle element 3 is attached.
  • the attachment takes place via a pivot bearing 4, which is located in an end region 5, preferably the U-shaped grip element 3.
  • the latter is via a decoupling unit 7 that decouples vibration connected to the main body 2.
  • the pivot bearing 4 is also designed vibration damping, so that vibrations that occur when working with the power tool designed as a hammer drill on the base body 2 are only slightly or even no longer feel on the handle element 3.
  • the pivot bearing 4 has a pivot axis 8 which extends at right angles to the machining direction of the power tool 1 marked 9.
  • the decoupling unit 7 is associated with a linear guide 10 ( Figure 2), which allows a movement of the end portion 6 of the handle member 3 about the pivot axis 8 in the direction of the resulting from the figure 1 double arrow 11.
  • FIG. 2 illustrates the embodiment of the decoupling unit 7 and the linear guide 10, wherein two linear guides 10 are provided, which have the decoupling unit 7 between them.
  • two linear guides 10 are provided, which have the decoupling unit 7 between them.
  • only one of the linear guides 10 will be described, because the other is formed accordingly.
  • the decoupling unit 7 has two mutually concentric spring elements 12, which are each formed as a helical compression spring 13 with different large diameter, both helical compression springs 13 concentric umdietaryin each other and supported with their one end portions 14 on the handle member 3 and with its other end portions 15 on the base body 2 and consequently act on the handle element 3 in the direction of the arrow 16, so that it is pushed away from the base body 2. If a workpiece machining takes place with the power tool 1, then the user touches the grip element 3 and thereby guides the power tool, wherein he will exert pressure forces against the direction of the arrow 3 in the case of a hammer drill. As a result, the helical compression springs 13 are more strongly biased, since the grip element 3 continues to approach the base body 2. Bridging joints between the base body 2 and handle element 3 are bridged by means of elastic bellows 17. To the
  • the linear guide 10 is provided which allows movement in the direction of the double arrow 11 ( Figure 1) within certain limits.
  • the linear guide 10 has a linear guide element 18 which is fixed rigidly on the grip element 3.
  • the linear guide element 18 is as Screw 19 is formed, which is screwed with its thread 20 in a blind bore 21 of the handle member 3.
  • the shank 22 of the screw 19 extends in the direction of the main body 2 and thereby engages through a passage 23 forming a passage 24 of an elastic vibration decoupling element 25 which is fixed in a receiving channel 26 of the base body 1.
  • the vibration decoupling element 25 is formed in particular bush-shaped.
  • the screw 19 has a screw head 27 which forms a head 28 of the linear guide element 18 and rests with its inner side 29 on a wall 45 of the base body 2 (housing) in front of the vibration decoupling element 25 in the position resulting from FIG.
  • the shaft 22 is guided longitudinally displaceable in the passageway 24.
  • Vibration decoupling element 25 can lift slightly. Laterally, ie transversely to the direction of the arrow 16, there is a guide of the linear guide element 18 within the through-channel 24, so that lateral stabilization is present.
  • the vibration decoupling in the fulcrum of the handle, the pivot bearing 4 will be explained in more detail with reference to FIG 3. It has a first bearing part 30 with a bearing channel 31, wherein the first bearing part is connected to the base body 2 or formed thereon.
  • a vibration decoupling component 32 in the form of a decoupling ring 33 is arranged in the bearing channel 31.
  • two vibration decoupling components 32 are provided at the end regions of the first bearing part 30.
  • the following is only on the formation of a page, ie in the field of
  • Decoupling ring 33 received, since the other side is formed accordingly.
  • a holding part 34 which forms a bearing axis, passes through the interior of the decoupling ring 33 and is therefore kept vibration-decoupled.
  • the handle member 3 (handle) attached to the holding part 34 so that through the Decoupling element 33, a decoupling gap a between the first bearing part 30, which belongs to the base body 2, and a second bearing part 40 results, wherein the second bearing part 40 belongs to the grip element 3.
  • Vibration decoupling element 25 and the vibration decoupling member 32 takes place a vibration decoupling.
  • the power tool can be operated on with emergency with limited vibration decoupling.
  • the above embodiments also show a simple structure and the ability to easily tune the vibration decoupling on the device, ie on the respective power tool.
  • the relevant decoupling components can be easily manufactured, in particular as cylindrical bushings and exchanged for parts with different density and / or altered vibration properties.
  • sprayable material for the vibration decoupling elements it is possible to direct a sprayed on the grip element rubber over preferably cleverly arranged holes in the interior of the handle member and the elastic vibration decoupling guide elements, so the vibration decoupling element 25 and the vibration decoupling member 32, in the course of gumming with.

Abstract

L'invention concerne une machine-outil électrique (1), notamment un marteau-piqueur à main, avec un corps de base (2) et un élément de préhension (3). Le corps de base (2) et l'élément de préhension (3) sont reliés entre eux par l'intermédiaire d'un palier de pivotement (4) et d'au moins une unité de découplage (7) située à distance d'un axe de pivotement (8) du palier de pivotement (4) et servant à découpler les vibrations. Au moins un guide linéaire (10) est associé à l'unité de découplage (7). Selon l'invention, le guide linéaire (10) présente au moins un élément (18) de guide linéaire qui est guidé en coulissement dans un élément élastique (25) de découplage des vibrations.
EP07788117A 2006-09-21 2007-08-01 Machine-outil électrique avec élément de préhension découplé des vibrations Withdrawn EP2069109A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200610044433 DE102006044433A1 (de) 2006-09-21 2006-09-21 Elektrowerkzeugmaschine mit schwingungsentkoppeltem Griffelement
PCT/EP2007/057947 WO2008034668A1 (fr) 2006-09-21 2007-08-01 Machine-outil électrique avec élément de préhension découplé des vibrations

Publications (1)

Publication Number Publication Date
EP2069109A1 true EP2069109A1 (fr) 2009-06-17

Family

ID=38658593

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07788117A Withdrawn EP2069109A1 (fr) 2006-09-21 2007-08-01 Machine-outil électrique avec élément de préhension découplé des vibrations

Country Status (5)

Country Link
EP (1) EP2069109A1 (fr)
CN (1) CN101516578A (fr)
DE (1) DE102006044433A1 (fr)
RU (1) RU2466855C2 (fr)
WO (1) WO2008034668A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2082845A2 (fr) 2008-01-24 2009-07-29 Black & Decker, Inc. Ensemble de montage pour poignée d'outil électrique

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2456807A (en) * 2008-01-24 2009-07-29 Black & Decker Inc Mounting assembly for handle for power tool
EP2119537A1 (fr) * 2008-05-17 2009-11-18 Metabowerke GmbH Machine-outil électrique manuelle
DE102009022088A1 (de) 2009-05-20 2010-11-25 Friedrich Duss Maschinenfabrik Gmbh & Co.Kg Elektrowerkzeugmaschine, insbesondere handgeführter Bohrhammer
GB2472997A (en) * 2009-08-26 2011-03-02 Black & Decker Inc Hammer drill with vibration damping means in handle
FI20095923A (fi) * 2009-09-08 2011-03-09 Sandvik Mining & Constr Oy Kallionporausyksikkö, syöttöpalkki sekä menetelmä värähtelyn vaimentamiseksi
DE102009054640A1 (de) * 2009-12-15 2011-06-16 Robert Bosch Gmbh Handwerkzeugmaschine
DE202012006747U1 (de) * 2012-07-13 2013-10-16 Illinois Tool Works, Inc. Motorisch angetriebenes Handwerkzeug
EP2898993B1 (fr) 2014-01-23 2019-01-30 Black & Decker Inc. Outil electrique
EP2898991B1 (fr) 2014-01-23 2018-12-26 Black & Decker Inc. Poignée arrière
EP2898994A1 (fr) 2014-01-23 2015-07-29 Black & Decker Inc. Outil électrique avec une poignée arrière
EP2898992B1 (fr) 2014-01-23 2016-05-04 Black & Decker Inc. Outil électrique avec poignée arrière, méthode d'assemblage d'une partie d'une poignée pour un outil électrique et méthode de démontage d'une partie d'une poignée pour un outil électrique
JP6309881B2 (ja) 2014-11-14 2018-04-11 株式会社マキタ 作業工具
JP6863704B2 (ja) 2016-10-07 2021-04-21 株式会社マキタ 打撃工具
US10875168B2 (en) 2016-10-07 2020-12-29 Makita Corporation Power tool
RU2677903C2 (ru) * 2017-05-23 2019-01-22 Борис Самуилович Доброборский Машина ударного действия
RU190818U1 (ru) * 2017-12-28 2019-07-12 Федеральное государственное бюджетное образовательное учреждение высшего образования "Санкт-Петербургский государственный архитектурно-строительный университет" Машина ударного действия
CN110549303A (zh) * 2018-05-31 2019-12-10 苏州宝时得电动工具有限公司 冲击工具
CN108705125A (zh) * 2018-07-20 2018-10-26 高邮市力博机床附件厂 一种防止碎屑飞溅的电锤冲击钻
JP7246202B2 (ja) 2019-02-19 2023-03-27 株式会社マキタ 震動機構付き電動工具
JP7229807B2 (ja) 2019-02-21 2023-02-28 株式会社マキタ 電動工具

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3824417A (en) * 1973-03-19 1974-07-16 Black & Decker Mfg Co Handle mounting construction for electric paving breaker
SU508393A1 (ru) * 1973-12-24 1976-03-30 Всесоюзный Научно-Исследовательскийи Проектно-Конструкторский Институтмеханизированного И Ручного Строительно-Монтажного Инструмента,Вибраторов Истроительно Отделочных Машин Пускова руко тка ручных машин
SU1310194A1 (ru) * 1982-12-07 1987-05-15 Всесоюзный Научно-Исследовательский И Проектно-Конструкторский Институт Механизированного И Ручного Строительно-Монтажного Инструмента,Вибраторов И Строительно-Отделочных Машин Дополнительна руко тка к ручной машине
US5697456A (en) * 1995-04-10 1997-12-16 Milwaukee Electric Tool Corp. Power tool with vibration isolated handle
DE29700003U1 (de) * 1997-01-02 1997-02-27 Wacker Werke Kg Aufbruch- und/oder Bohrhammer
DE10036078B4 (de) * 2000-07-25 2007-04-05 Robert Bosch Gmbh Handwerkzeugmaschine mit einem Handgriff und einer Isoliervorrichtung
DE10355103B4 (de) * 2003-11-24 2010-03-18 Itw-Befestigungssysteme Gmbh Vibrationsgedämpfter Handgriff für ein handgeführtes Elektrowerkzeug
JP4290582B2 (ja) * 2004-02-09 2009-07-08 株式会社マキタ 往復作動式作業工具
JP4461046B2 (ja) * 2005-03-29 2010-05-12 株式会社マキタ 往復作動式作業工具

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
None *
See also references of WO2008034668A1 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2082845A2 (fr) 2008-01-24 2009-07-29 Black & Decker, Inc. Ensemble de montage pour poignée d'outil électrique
EP2082845A3 (fr) * 2008-01-24 2011-09-14 Black & Decker, Inc. Ensemble de montage pour poignée d'outil électrique

Also Published As

Publication number Publication date
DE102006044433A1 (de) 2008-04-03
CN101516578A (zh) 2009-08-26
WO2008034668A1 (fr) 2008-03-27
RU2009114755A (ru) 2010-10-27
RU2466855C2 (ru) 2012-11-20

Similar Documents

Publication Publication Date Title
EP2069109A1 (fr) Machine-outil électrique avec élément de préhension découplé des vibrations
EP1414624B1 (fr) Machine portable a poignee antivibration
EP1958735B1 (fr) Machine-outil
EP1404493B1 (fr) Machine-outil portative presentant une poignee avec un systeme d'amortissement des vibrations
EP1674216B1 (fr) Poignée latérale
DE102005059180A1 (de) Handwerkzeugmaschine mit einem Antriebsstrang und einer Entkopplungseinheit
EP1882559A1 (fr) Outil à main doté d'un dispositif de découplage
DE102006016442A1 (de) Handwerkzeugmaschine mit vibrationsgedämpftem Handgriff
DE102008000516A1 (de) Zusatzhandgriff sowie Handwerkzeugmaschine
DE102006029630A1 (de) Handwerkzeugmaschine
EP1755815A1 (fr) Scie universelle
EP2253430A1 (fr) Machine-outil électrique, notamment perceuse manuelle
DE102009054923A1 (de) Handwerkzeugmaschine
CH692277A5 (de) Stützelement für ein handgeführtes Bohrgerät.
DE10236135B4 (de) Tragbares, handgeführtes Werkzeug
EP0679479B1 (fr) Outil à main pour enlever des surfaces
EP1691954A1 (fr) Marteau perforateur et/ou marteau pneumatique comportant un manche guide lineairement
EP2377729A1 (fr) Dispositif de fixation d'un arceau de sécurité ou pièce rapportée analogue sur un véhicule
EP2159009A1 (fr) Adaptateur pour poignée supplémentaire et poignée supplémentaire
DE102012219821B4 (de) Adapteranordnung zum Gewindebohren
DE102014107173A1 (de) Werkzeug und Verfahren zum Aufbringen kleiner Schlagimpulse
DE10063445B4 (de) Betätigungshandgriff
WO2009047060A1 (fr) Poignée supplémentaire
WO2003052216A2 (fr) Dispositif pour enlever une matiere de jointoiement
DE102010011005B4 (de) Hammer mit gedämpftem Griff

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

17P Request for examination filed

Effective date: 20090421

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA HR MK RS

DAX Request for extension of the european patent (deleted)
17Q First examination report despatched

Effective date: 20170125

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: 20170607