EP0999922B1 - Aufbruch- und / oder bohrhammer mit schwingungsdämpfung - Google Patents
Aufbruch- und / oder bohrhammer mit schwingungsdämpfung Download PDFInfo
- Publication number
- EP0999922B1 EP0999922B1 EP98939528A EP98939528A EP0999922B1 EP 0999922 B1 EP0999922 B1 EP 0999922B1 EP 98939528 A EP98939528 A EP 98939528A EP 98939528 A EP98939528 A EP 98939528A EP 0999922 B1 EP0999922 B1 EP 0999922B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- hammer
- housing
- hammer housing
- rubber
- outer casing
- 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.)
- Expired - Lifetime
Links
Images
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
- B25D17/24—Damping the reaction force
-
- 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
- B25D2250/00—General details of portable percussive tools; Components used in portable percussive tools
- B25D2250/245—Spatial arrangement of components of the tool relative to each other
Definitions
- the invention relates to a breaker and / or hammer drill with a striking mechanism including drive and holder for a striking tool and a hammer housing surrounding a drive motor, which is enclosed at a distance by an outer shell that is selected on Articulation points is elastically connected to the hammer housing and at their in Direction of impact of the tool from this end facing away from a handle is.
- a device of this type is known from DE-C-40 00 861.
- the reduction of Hand and arm vibrations in the person operating the device are inadequate solved.
- an adjustment of the spring or damping effect to different working conditions in the state of the art not yet sufficient realized.
- the outer shell encloses not the complete hammer housing, but only that through the motor housing formed section.
- a second handle is not shown. Did you want to put it on? it would have to be connected to the gearbox and this would open this second handle transmit all those vibrations undamped by the decoupling of the hammer housing from that enclosing only the motor housing Only reach the outer shell in a dampened manner. This is in the handling of the device not only uncomfortable, but also affects the safe Management of the device.
- a hand tool in which one Handle housing hammer housing a tool drive, a hammer mechanism and surrounds a bracket for a striking tool.
- the striking mechanism is over damping elements fixed in the hammer housing while by an electric motor formed drive is rigidly connected to the hammer housing. The operation of the Vibrations occurring in the electric motor are therefore undamped onto the handle transfer.
- the invention is therefore based on the object of a breaker and / or hammer drill of the type mentioned in such a way that he with both hands is also manageable, and that the vibrations emanating from the hammer housing the two hands used to hold and guide the hammer Handles only dampened so that they reach hands and arms vibrations are reduced as much as possible, and the leadership of the hammer is improved.
- connection between the Hammer housing and the outer shell arranged spring or damping elements should be designed in such a way that they can be adjusted to any desired spring characteristic in six degrees of freedom have, furthermore, the forces acting on these connection areas should be kept as low as possible.
- the solution is for a breaker and / or hammer drill of the type mentioned in that the outer shell up to or at least close to that from the hammer housing protruding impact tool holder reaches and there with a second Handle provided or can be provided, preferably the articulation points on the both sides of the hammer housing symmetrical to the longitudinal median plane of the hammer are arranged.
- the arrangement according to the invention does not only provide vibration damping also achieved the second handle, rather it is done by arranging both Handles on a single component elastically connected to the hammer housing the damping of both handles synchronously, i.e. there is no relative movement between both handles instead, which makes handling and handling the device pleasant and makes sure.
- the outer shell on both sides of the hammer housing at two articulation points is connected to the hammer housing, preferably cuts the line of action of the tool a plane containing the four articulation points.
- the outer shell is on both Sides of the hammer housing on three not on a common straight line located articulation points connected to the hammer housing.
- connections the individual articulation points are realized by means of rubber-elastic elements, whereby preferably at each articulation point on the hammer housing a body made of rubber-elastic Material is attached, one to the longitudinal median plane of the hammer housing has at least substantially vertical bore into which one of the outer shell engages inwardly projecting bolt.
- the bodies are made of rubber-elastic Material held in a sleeve on the hammer housing.
- the outer shell is made of plastic, which together with the formation of the rubber-elastic elements also a particularly effective electrical insulation can be achieved.
- the rubber-elastic body have different spring properties in different directions, whereby preferably the body made of rubber-elastic material in two itself in the axis of the bore diametrical directions crossing the bore different dimensions have different spring or damping effects, for example in the direction of vibration of the tool and across it to let.
- the spring characteristics can be set to any of six degrees of freedom, whereby very long spring travel is also possible.
- the rubber-elastic bodies are preferably parallel to the direction of impact of the Hammer thicker than perpendicular to it. This can be advantageous according to another Embodiment can be achieved in such a way that the rubber-elastic body have an elliptical outer outline.
- a breaker and / or hammer drill 10 essentially consists of two parts, namely a hammer housing 12, in which a striking tool 11, Not specifically shown bracket and an associated vibration exciter are housed, and an outer shell 14 made of plastic, which Hammer housing 12 encloses at a distance and with a molded handle 16 is provided.
- the outer shell 14 extends at least close to the Area 15 of the hammer housing 12 from which the striking tool 11 protrudes.
- a second handle 17 is at this end facing the striking tool Outer shell 14 attached or molded.
- the suspension is in this direction of vibration softer than in the normal, parallel to the longitudinal median plane mentioned trending direction. It is apparent to those skilled in the art that Choice of a suitable outline of the projection 20 and the body 22 any Coordination of the suspension can be achieved.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Percussive Tools And Related Accessories (AREA)
- Drilling And Boring (AREA)
Abstract
Description
- Fig. 1
- eine schematische Seitenansicht eines erfindungsgemäß ausgebildeten Aufbruch- und/oder Bohrhammers und
- Fig. 2
- einen Schnitt durch eine Anlenkstelle nach der Linie II-II in Fig. 1.
Claims (12)
- Aufbruch-und/oder Bohrhammer (10) mit einem ein Schlagwerk samt Antrieb und Halterung für ein Schlagwerkzeug (11) sowie einen Antriebsmotor umgebenden Hammergehäuse (12), das mit Abstand von einer Außenschale (14) umschlossen ist, die ar ausgewählten Anlenkstellen (18a, 18b, 18c) elastisch mit dem Hammergehäuse (12) verbunden ist und an deren in Schlagrichtung des Schlagwerkzeugs (11) von diesem abgewandten Ende ein Handgriff (16) angeordnet ist, dadurch gekennzeichnet, daß die Außenschale (14) bis oder zumindest bis nahe an die aus dem Hammergehäuse (12) vorragende Schlagwerkzeughalterung heranreicht und dort mit einem zweiten Handgriff (17) versehen oder versehbar ist.
- Hammer nach Anspruch 1, dadurch gekennzeichnet, daß die Anlenkstellen (18a, 18b, 18c) auf den beiden Seiten des Hammergehäuses (12) zur Längsmittelebene des Hammers (10) symmetrisch angeordnet sind.
- Hammer nach Anspruch 2, dadurch gekennzeichnet, daß die Außenschale (14) auf beiden Seiten des Hammergehäuses (12) an jeweils zwei Anlenkstellen (18a, 18c) mit dem Hammergehäuse (12) verbunden ist und daß die Wirkungslinie des Schlagwerkzeugs (11) eine die insgesamt vier Anlenkstellen enthaltende Ebene schneidet.
- Hammer nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, daß die Außenschale (14) auf beiden Seiten des Hammergehäuses (12) an jeweils drei nicht auf einer gemeinsamen Geraden gelegenen Anlenkstellen (18a, 18b, 18c) mit dem Hammergehäuse (12) verbunden ist.
- Hammer nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Verbindungen an den einzelnen Anlenkstellen (18a, 18b, 18c) mittels gummielastischer Elemente (22) realisiert sind.
- Hammer nach Anspruch 5, dadurch gekennzeichnet, daß an jeder Anlenkstelle (18a, 18b, 18c) an dem Hammergehäuse (12) ein Körper (22) aus gummi-elastischem Material befestigt ist, der eine zur Längsmittelebene des Hammergehäuses (12) zumindest im wesentlichen senkrechte Bohrung (24) aufweist. in die ein von der Außenschale (14) einwärts ragender Bolzen (26) eingreift.
- Hammer nach Anspruch 6, dadurch gekennzeichnet, daß die Körper (22) aus gummielastischem Material jeweils in einer Hülse (20) am Hammergehäuse (12) gehalten sind.
- Hammer nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Außenschale (14) aus Kunststoff besteht.
- Hammer nach einem der Ansprüche 6 bis 8, dadurch gekennzeichnet, daß die gummielastischen Körper (22) in unterschiedlichen Richtungen unterschiedliche Federeigenschaft haben.
- Hammer nach Anspruch 9, dadurch gekennzeichnet, daß die Körper (22) aus gummielastischem Material in zwei sich in der Bohrungsachse der Bohrung (24) kreuzenden, zueinander senkrecht stehenden Richtungen unterschiedliche Abmessungen aufweisen.
- Hammer nach Anspruch 10, dadurch gekennzeichnet, daß die gummielastischen Körper (22) parallel zur Schlagrichtung des Hammers dicker sind als senkrecht dazu.
- Hammer nach einem der Ansprüche 10 oder 11, dadurch gekennzeichnet, daß die gummielastischen Körper (22) einen elliptischen äußeren Umriß haben.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19730356A DE19730356C2 (de) | 1997-07-15 | 1997-07-15 | Schwingungsgedämpfter Aufbruch- und/oder Bohrhammer |
DE19730356 | 1997-07-15 | ||
PCT/EP1998/003870 WO1999003647A1 (de) | 1997-07-15 | 1998-06-24 | Aufbruch- und/oder bohrhammer mit schwingungsdämpfung |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0999922A1 EP0999922A1 (de) | 2000-05-17 |
EP0999922B1 true EP0999922B1 (de) | 2001-10-24 |
Family
ID=7835802
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98939528A Expired - Lifetime EP0999922B1 (de) | 1997-07-15 | 1998-06-24 | Aufbruch- und / oder bohrhammer mit schwingungsdämpfung |
Country Status (6)
Country | Link |
---|---|
US (1) | US6286610B1 (de) |
EP (1) | EP0999922B1 (de) |
JP (1) | JP2001510099A (de) |
DE (2) | DE19730356C2 (de) |
ES (1) | ES2163290T3 (de) |
WO (1) | WO1999003647A1 (de) |
Families Citing this family (49)
Publication number | Priority date | Publication date | Assignee | Title |
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US8047302B2 (en) * | 2001-12-21 | 2011-11-01 | Wacker Neuson Produktion GmbH & Co. KG | Drilling and/or striking hammer with a lubricating device |
US7066691B2 (en) | 2002-01-25 | 2006-06-27 | Black & Decker Inc. | Power drill/driver |
US6796389B2 (en) | 2002-03-28 | 2004-09-28 | Snap-On Incorporated | Power hand tool and removable grip therefor |
DE10302089B3 (de) * | 2003-01-17 | 2004-10-14 | Hilti Ag | Schlagende Elektrohandwerkzeugmaschine mit einem Piezoaktor |
DE10344164A1 (de) * | 2003-09-22 | 2005-04-28 | Rexroth Indramat Gmbh | Winkelartige Handarbeitsmaschine |
DE10361812A1 (de) * | 2003-12-30 | 2005-07-28 | Robert Bosch Gmbh | Handwerkzeugmaschine |
US7039986B2 (en) | 2004-02-05 | 2006-05-09 | Multiquip, Inc. | Vibration isolation machine handle |
DE202004008462U1 (de) * | 2004-05-27 | 2005-10-06 | Metabowerke Gmbh | Elektrohandwerkzeuggerät |
SE528469C2 (sv) * | 2004-07-05 | 2006-11-21 | Atlas Copco Constr Tools Ab | Slående verktyg med en rörligt upphängd slagmekanism |
JP4647957B2 (ja) | 2004-08-27 | 2011-03-09 | 株式会社マキタ | 作業工具 |
JP4815119B2 (ja) * | 2004-10-15 | 2011-11-16 | 株式会社マキタ | 往復作動式作業工具 |
GB2421000A (en) * | 2004-12-07 | 2006-06-14 | Black & Decker Inc | Vibration attenuated power tool |
ATE396838T1 (de) * | 2004-12-23 | 2008-06-15 | Black & Decker Inc | Kraftwerkzeuggehäuse |
US20060207063A1 (en) * | 2005-03-01 | 2006-09-21 | Multiquip. Inc. | Vibration dampening handle |
US20070246237A1 (en) * | 2006-04-24 | 2007-10-25 | Emile Homsi | Vibration dampening of a power tool |
DE102006000253A1 (de) * | 2006-05-30 | 2007-12-06 | Hilti Ag | Schlagende Handwerkzeugmaschine mit axial beweglich gelagertem Schlagwerk |
DE102006027774A1 (de) * | 2006-06-16 | 2007-12-20 | Robert Bosch Gmbh | Handwerkzeugmaschine |
CA2659305A1 (en) * | 2006-09-08 | 2008-03-13 | Husqvarna Aktiebolag | Arrangement in a portable tool |
DE102006049827A1 (de) * | 2006-10-23 | 2008-04-24 | Robert Bosch Gmbh | Handgriffvorrichtung |
WO2008097555A1 (en) * | 2007-02-07 | 2008-08-14 | Robert Bosch Gmbh | Vibration dampening for a power tool |
DE102007000093A1 (de) | 2007-02-15 | 2008-08-21 | Hilti Ag | Handwerkzeuggerät |
US20090000132A1 (en) * | 2007-06-29 | 2009-01-01 | The Stanley Works | Reduced vibration saw handle |
EP2105261A1 (de) * | 2008-03-27 | 2009-09-30 | AEG Electric Tools GmbH | Elektrowerkzeug, insbesondere Bohr- und/oder Meißelhammer |
JP5361504B2 (ja) * | 2009-04-10 | 2013-12-04 | 株式会社マキタ | 打撃工具 |
DE102009002976A1 (de) * | 2009-05-11 | 2010-11-18 | Robert Bosch Gmbh | Handwerkzeugmaschine, insbesondere Elektrohandwerkzeugmaschine |
JP5382431B2 (ja) * | 2009-05-29 | 2014-01-08 | 日立工機株式会社 | 電動工具 |
JP5395531B2 (ja) * | 2009-06-19 | 2014-01-22 | 株式会社マキタ | 作業工具 |
JP5420342B2 (ja) * | 2009-08-06 | 2014-02-19 | 株式会社マキタ | 電動工具 |
GB201112833D0 (en) * | 2011-07-26 | 2011-09-07 | Black & Decker Inc | A hammer drill |
JP5764034B2 (ja) * | 2011-10-19 | 2015-08-12 | リョービ株式会社 | 電動工具 |
DE102012103603A1 (de) | 2012-04-24 | 2013-10-24 | C. & E. Fein Gmbh | Handführbare Werkzeugmaschine mit Lüftereinrichtung |
DE102012103587A1 (de) * | 2012-04-24 | 2013-10-24 | C. & E. Fein Gmbh | Handführbare Werkzeugmaschine mit Außengehäuse |
DE102012103604A1 (de) * | 2012-04-24 | 2013-10-24 | C. & E. Fein Gmbh | Handführbare Werkzeugmaschine mit Gehäuse |
US8966773B2 (en) | 2012-07-06 | 2015-03-03 | Techtronic Power Tools Technology Limited | Power tool including an anti-vibration handle |
JP6070945B2 (ja) * | 2013-05-28 | 2017-02-01 | 日立工機株式会社 | 携帯型作業機 |
JP6096593B2 (ja) * | 2013-05-29 | 2017-03-15 | 株式会社マキタ | 往復動式作業工具 |
JP6266304B2 (ja) * | 2013-10-30 | 2018-01-24 | 株式会社マキタ | 往復動切断工具 |
JP6278830B2 (ja) * | 2014-05-16 | 2018-02-14 | 株式会社マキタ | 打撃工具 |
CN205497392U (zh) | 2015-02-15 | 2016-08-24 | 苏州宝时得电动工具有限公司 | 动力工具 |
JP6703417B2 (ja) * | 2016-02-19 | 2020-06-03 | 株式会社マキタ | 作業工具 |
JP6795309B2 (ja) * | 2016-02-19 | 2020-12-02 | 株式会社マキタ | 作業工具 |
JP6697894B2 (ja) * | 2016-02-19 | 2020-05-27 | 株式会社マキタ | 作業工具 |
JP6697895B2 (ja) * | 2016-02-19 | 2020-05-27 | 株式会社マキタ | 作業工具 |
EP3208049B1 (de) | 2016-02-19 | 2018-05-09 | Makita Corporation | Arbeitswerkzeug |
WO2019195508A1 (en) * | 2018-04-04 | 2019-10-10 | Milwaukee Electric Tool Corporation | Rotary hammer |
EP4059665A1 (de) * | 2020-12-21 | 2022-09-21 | Techtronic Cordless GP | Werkzeugmaschine mit getriebeanordnung |
JP2022119301A (ja) * | 2021-02-04 | 2022-08-17 | 株式会社マキタ | 打撃工具 |
JP2022127768A (ja) * | 2021-02-22 | 2022-09-01 | 株式会社マキタ | 打撃工具 |
JP2022128006A (ja) * | 2021-02-22 | 2022-09-01 | 株式会社マキタ | 打撃工具 |
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US5027910A (en) * | 1990-05-02 | 1991-07-02 | Honsa Ergonomic Technologies, Inc. | Vibration-isolated rotary tool |
DE4211316A1 (de) | 1992-04-04 | 1993-10-07 | Atlas Copco Elektrowerkzeuge | Gehäuse einer Elektrowerkzeugmaschine |
DE4306588A1 (de) | 1992-07-14 | 1994-01-20 | Bosch Gmbh Robert | Schwingungsdämpfende Halterung von Elektromotoren |
US5273120A (en) * | 1993-05-26 | 1993-12-28 | Ingersoll-Rand Company | Power tool with a vibration absorbing handle |
JPH0825249A (ja) * | 1994-07-12 | 1996-01-30 | Makita Corp | 振動工具及び防振リング |
-
1997
- 1997-07-15 DE DE19730356A patent/DE19730356C2/de not_active Expired - Fee Related
-
1998
- 1998-06-24 WO PCT/EP1998/003870 patent/WO1999003647A1/de active IP Right Grant
- 1998-06-24 DE DE59801885T patent/DE59801885D1/de not_active Expired - Fee Related
- 1998-06-24 EP EP98939528A patent/EP0999922B1/de not_active Expired - Lifetime
- 1998-06-24 JP JP2000502919A patent/JP2001510099A/ja active Pending
- 1998-06-24 US US09/462,851 patent/US6286610B1/en not_active Expired - Fee Related
- 1998-06-24 ES ES98939528T patent/ES2163290T3/es not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0999922A1 (de) | 2000-05-17 |
JP2001510099A (ja) | 2001-07-31 |
WO1999003647A1 (de) | 1999-01-28 |
DE59801885D1 (de) | 2001-11-29 |
DE19730356A1 (de) | 1999-01-28 |
ES2163290T3 (es) | 2002-01-16 |
US6286610B1 (en) | 2001-09-11 |
DE19730356C2 (de) | 2001-05-17 |
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