EP1422029A1 - Vibrationsentkoppelte Schlagwerksbaugruppe - Google Patents
Vibrationsentkoppelte Schlagwerksbaugruppe Download PDFInfo
- Publication number
- EP1422029A1 EP1422029A1 EP03104220A EP03104220A EP1422029A1 EP 1422029 A1 EP1422029 A1 EP 1422029A1 EP 03104220 A EP03104220 A EP 03104220A EP 03104220 A EP03104220 A EP 03104220A EP 1422029 A1 EP1422029 A1 EP 1422029A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- mechanism assembly
- striking mechanism
- axially
- housing
- assembly according
- 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
Links
- 230000007246 mechanism Effects 0.000 title claims description 26
- 238000009527 percussion Methods 0.000 title 1
- 230000006835 compression Effects 0.000 claims description 5
- 238000007906 compression Methods 0.000 claims description 5
- 239000003351 stiffener Substances 0.000 claims description 3
- 238000005452 bending Methods 0.000 abstract description 3
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000003071 parasitic effect Effects 0.000 description 1
- 230000036316 preload Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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
- B25D—PERCUSSIVE TOOLS
- B25D2250/00—General details of portable percussive tools; Components used in portable percussive tools
- B25D2250/371—Use of springs
Definitions
- the invention relates to an axially striking hand tool with one opposite a housing axially vibration-decoupled impact mechanism assembly, in particular a hand-held chisel hammer.
- EP837756 there is a striking mechanism assembly for an axially striking hand machine tool against the housing exclusively via a spring-loaded parallelogram joint biased out of leaf springs.
- the striking mechanism assembly with different spatial work orientations in the room necessary strong leaf springs transmit strong vibrations to various Points of the housing, which induces disturbing additional transverse vibration moments become.
- a striking mechanism is arranged axially against the housing Supported coil spring.
- a rubber ring is negligible axially moveable striking mechanism assembly against the housing with an axial arranged helical compression spring supported. Such solutions are too small axial bearing area.
- an axially striking hand tool has an axial vibration-decoupled housing a parallelogram joint from two axially spaced, in Slide bearings axially limited pivotable articulated arms and one obliquely against one Vibration center in the housing preloaded helical compression spring, whereby Cross-vibration moments are avoided. Because of the impact machine tools The usual high levels of dust have a high wear on plain bearings.
- the object of the invention is to implement a vibration-decoupled device with low wear Striking mechanism assembly of an axially striking hand machine tool.
- Two axially spaced articulated arms are advantageously oriented parallel to one another, whereby a tension-free parallelogram guide is formed.
- At least one articulated arm advantageously has one rigid central section and two End-side, elastically deformable film joints, which causes a slack Training in the direction of vibration simultaneously a rigid training in the transverse directions is achieved, which lead the hammer mechanism assembly firmly in this regard.
- the central section advantageously has additional stiffeners, which in particular acoustically disturbing parasitic bending modes and torsional vibrations along the articulated arm be prevented.
- At least two articulated arms are advantageously opposed in terms of their radial extension oriented, which means that the machine tool has different spatial orientations at least one articulated arm due to the weight of the striking mechanism assembly along it radial extension is stressed and relieves the other articulated arm, which safely prevents stability problems caused by kinks along the articulated arm.
- the spring is advantageously designed as a spiral compression spring, whereby a low-damping and space-saving spring with a suitable spring constant can be realized.
- an axially striking handheld power tool 1 has the shape of a Chisel hammer with a striking mechanism assembly 2 one against exactly one point of attack P in the housing 3 biased spring 4 in the form of a helical compression spring and a, from exactly two axially spaced and axially limited articulated arms 5a, 5b existing, axial guide means for mounting the striking mechanism assembly 2.
- the parallel to each other and oriented in opposite directions with respect to their radial extension Articulated arms 5a, 5b made of steel are axially limp deformable.
- the handle side Articulated arm 5a has a rigid central section with additional stiffeners 6 and two end-side, flat, elastically deformable film joints 7.
- the articulated arms 5a, 5b are both with the housing 3 via axially projecting fastening domes 8a, 8b also directly with the striking mechanism assembly 2, which consists of an electric motor 9, a Gear 10 and a pneumatic hammer mechanism 11 is connected without sliding movement.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Percussive Tools And Related Accessories (AREA)
- Portable Nailing Machines And Staplers (AREA)
- Surgical Instruments (AREA)
- Drilling And Boring (AREA)
- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
- Mechanical Operated Clutches (AREA)
Abstract
Description
Claims (6)
- Schlagwerksbaugruppe einer zumindest teilweise axial schlagenden Handwerkzeugmaschine (1), welche über eine Feder (4) gegenüber genau einem Angriffspunkt (P) im Gehäuse (3) schwingungsentkoppelt sowie über ein, aus zumindest zwei axial beabstandeten und axial begrenzt beweglichen Gelenkarmen (5a, 5b) bestehendes, Axialführungsmittel gelagert ist, dadurch gekennzeichnet, dass die Gelenkarme (5a, 5b) biegeschlaff deformierbar ausgebildet und mit dem Gehäuse (3) gleitbewegungsfrei verbunden sind.
- Schlagwerksbaugruppe nach Anspruch 1, dadurch gekennzeichnet, dass jeweils zwei axial beabstandete Gelenkarme (5a, 5b) zueinander parallel orientiert sind.
- Schlagwerksbaugruppe nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass zumindest ein Gelenkarm (5a) einen biegesteifen Mittenabschnitt und zwei endseitige, elastisch deformierbare Foliengelenke (7) aufweist.
- Schlagwerksbaugruppe nach Anspruch 3, dadurch gekennzeichnet, dass der Mittenabschnitt zusätzliche Versteifungen (6) aufweist.
- Schlagwerksbaugruppe nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass zumindest zwei Gelenkarme (5a, 5b) bezüglich ihrer radialen Erstreckung gegensinnig orientiert sind.
- Schlagwerksbaugruppe nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass die Feder (4) als Schraubendruckfeder ausgebildet ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10255162A DE10255162A1 (de) | 2002-11-22 | 2002-11-22 | Vibrationsentkoppelte Schlagwerksbaugruppe |
DE10255162 | 2002-11-22 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1422029A1 true EP1422029A1 (de) | 2004-05-26 |
EP1422029B1 EP1422029B1 (de) | 2010-11-17 |
Family
ID=32185954
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03104220A Expired - Lifetime EP1422029B1 (de) | 2002-11-22 | 2003-11-17 | Vibrationsentkoppelte Schlagwerksbaugruppe |
Country Status (7)
Country | Link |
---|---|
US (1) | US6962211B2 (de) |
EP (1) | EP1422029B1 (de) |
JP (1) | JP4344223B2 (de) |
CN (1) | CN100335239C (de) |
AT (1) | ATE488332T1 (de) |
DE (2) | DE10255162A1 (de) |
PL (1) | PL363594A1 (de) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006004547A1 (en) * | 2004-07-05 | 2006-01-12 | Atlas Copco Construction Tools Ab | Impact tool with a movably supported impact mechanism |
WO2006004546A1 (en) * | 2004-07-05 | 2006-01-12 | Atlas Copco Construction Tools Ab | Vibration damped impact tool with pressure air feed means |
WO2007039356A1 (de) * | 2005-10-04 | 2007-04-12 | Robert Bosch Gmbh | Elektrowerkzeugmaschine |
WO2007102449A1 (en) * | 2006-03-07 | 2007-09-13 | Hitachi Koki Co., Ltd. | Electrical power tool |
EP1862266A2 (de) * | 2006-05-30 | 2007-12-05 | HILTI Aktiengesellschaft | Schlagende Handwerkzeugmaschine mit axial beweglich gelagertem Schlagwerk |
EP1736283A3 (de) * | 2005-06-23 | 2008-05-14 | Black & Decker, Inc. | Schwingungsdämpfungsmechanismus für einen Bohrhammer |
EP1958735A1 (de) * | 2007-02-15 | 2008-08-20 | HILTI Aktiengesellschaft | Handwerkzeuggerät |
WO2012084349A1 (de) * | 2010-12-21 | 2012-06-28 | Robert Bosch Gmbh | Handwerkzeugmaschine |
Families Citing this family (33)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10357758A1 (de) * | 2003-12-10 | 2005-07-21 | Wacker Construction Equipment Ag | Aufbruch- und/oder Bohrhammer mit linear geführter Griffeinrichtung |
US7604071B2 (en) * | 2004-04-30 | 2009-10-20 | Makita Corporation | Power tool with vibration reducing means |
EP1669165A1 (de) * | 2004-12-07 | 2006-06-14 | BLACK & DECKER INC. | Kraftwerkzeug mit gedämpften Schwingungen |
EP1674213B1 (de) * | 2004-12-23 | 2008-10-01 | BLACK & DECKER INC. | Kraftwerkzeug mit Kühlvorrichtung |
DE602005007166D1 (de) * | 2004-12-23 | 2008-07-10 | Black & Decker Inc | Kraftwerkzeuggehäuse |
GB0428210D0 (en) * | 2004-12-23 | 2005-01-26 | Black & Decker Inc | Mode change mechanism |
EP1674214B1 (de) * | 2004-12-23 | 2008-05-28 | BLACK & DECKER INC. | Kraftwerkzeuggehäuse |
EP1674211A1 (de) * | 2004-12-23 | 2006-06-28 | BLACK & DECKER INC. | Gehäuse für ein kraftgetriebenes Werkzeug |
JP5041575B2 (ja) * | 2006-03-07 | 2012-10-03 | 日立工機株式会社 | 打撃工具 |
EP1862268B1 (de) * | 2006-05-31 | 2012-05-02 | Ingersoll-Rand Company | Strukturträger für Schaftwerkzeuggehäuse |
DE102006029630A1 (de) * | 2006-06-28 | 2008-01-03 | Robert Bosch Gmbh | Handwerkzeugmaschine |
JP4756474B2 (ja) * | 2006-07-20 | 2011-08-24 | 日立工機株式会社 | 電動工具 |
JP4756473B2 (ja) * | 2006-07-20 | 2011-08-24 | 日立工機株式会社 | 電動工具 |
DE102006059348A1 (de) * | 2006-12-15 | 2008-07-03 | Robert Bosch Gmbh | Handwerkzeugmaschine mit schwingungsentkoppeltem Handgriff |
CN100475455C (zh) * | 2007-06-22 | 2009-04-08 | 浙江大学 | 具有减振的电锤工具手柄 |
DE102007042721A1 (de) * | 2007-09-07 | 2009-03-12 | Robert Bosch Gmbh | Handwerkzeugmaschine mit einem durch ein Ausgleichsmittel schwingungsgedämpften Handgriff |
DE102007055792A1 (de) * | 2007-12-13 | 2009-06-18 | Hilti Aktiengesellschaft | Elektrohandwerkzeugmaschine mit Schwingungsausgleicher |
GB0801304D0 (en) * | 2008-01-24 | 2008-03-05 | Black & Decker Inc | Hammer drill |
DE102009014970A1 (de) * | 2009-03-18 | 2010-09-23 | C. & E. Fein Gmbh | Oszillationswerkzeug mit Vibrationsdämpfung |
JP5361504B2 (ja) * | 2009-04-10 | 2013-12-04 | 株式会社マキタ | 打撃工具 |
JP5382431B2 (ja) * | 2009-05-29 | 2014-01-08 | 日立工機株式会社 | 電動工具 |
DE102011122938B3 (de) * | 2011-12-19 | 2016-01-28 | Festo Ag & Co. Kg | Setzgerät |
US8966773B2 (en) | 2012-07-06 | 2015-03-03 | Techtronic Power Tools Technology Limited | Power tool including an anti-vibration handle |
TWI453098B (zh) * | 2013-05-24 | 2014-09-21 | Rexon Ind Corp Ltd | 具有減震裝置的電動錘 |
EP2848370A1 (de) * | 2013-09-12 | 2015-03-18 | HILTI Aktiengesellschaft | Handwerkzeugmaschine |
JP6258093B2 (ja) | 2014-03-24 | 2018-01-10 | 株式会社マキタ | 打撃工具 |
EP3028821A1 (de) * | 2014-12-03 | 2016-06-08 | HILTI Aktiengesellschaft | Steuerungsverfahren für eine Handwerkzeugmaschine |
US10576594B2 (en) | 2017-03-29 | 2020-03-03 | Michael Paul Hill | Center point drill and center point drill attachment |
US10814468B2 (en) | 2017-10-20 | 2020-10-27 | Milwaukee Electric Tool Corporation | Percussion tool |
EP3501750A1 (de) * | 2017-12-19 | 2019-06-26 | Hilti Aktiengesellschaft | Vibrationsgedämpfte handwerkzeugmaschine |
CN214723936U (zh) | 2018-01-26 | 2021-11-16 | 米沃奇电动工具公司 | 冲击工具 |
US11845168B2 (en) * | 2019-11-01 | 2023-12-19 | Makita Corporation | Reciprocating tool |
US20230027574A1 (en) * | 2021-07-26 | 2023-01-26 | Makita Corporation | Striking tool |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2820125A1 (de) | 1978-05-09 | 1979-11-22 | Bosch Gmbh Robert | Handwerkzeugmaschine |
DE3405922A1 (de) | 1984-02-18 | 1985-08-22 | Robert Bosch Gmbh, 7000 Stuttgart | Handwerkzeugmaschine, insbesondere bohr- oder schlaghammer |
US5025870A (en) | 1988-11-19 | 1991-06-25 | Hilti Aktiengesellschaft | Hand-held tool with displaceable spring loaded handle |
EP0837756A1 (de) | 1995-07-13 | 1998-04-29 | Atlas Copco Berema Aktiebolag | Schwingungsgedämpftes mechanisches werkzeug |
EP0849492A2 (de) * | 1996-12-18 | 1998-06-24 | Ingersoll-Rand Company | Schwingungsdämpfer für einachsige Parallelbewegung |
EP0865134A2 (de) * | 1997-03-12 | 1998-09-16 | gabo Systemtechnik GmbH | Aus zwei Halbschalen bestehendes Reparaturstück |
DE20109122U1 (de) | 2001-05-31 | 2001-08-02 | Wacker-Werke GmbH & Co KG, 80809 München | Motorisch angetriebener Hammer mit einer gegen das Hammergehäuse abgefederten Schutzhaube |
WO2002083369A1 (de) | 2001-04-11 | 2002-10-24 | Robert Bosch Gmbh | Handwerkzeugmaschine mit vibrationsgedämpftem handgriff |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1597245A (en) * | 1923-12-28 | 1926-08-24 | Ingersoll Rand Co | Handle for percussive tools |
US3824417A (en) * | 1973-03-19 | 1974-07-16 | Black & Decker Mfg Co | Handle mounting construction for electric paving breaker |
JPS54127080A (en) * | 1978-03-25 | 1979-10-02 | Makoto Nandate | Vibration isolation device in handle of machine in which vibration is formed |
DE3122979A1 (de) * | 1981-06-10 | 1983-01-05 | Hilti AG, 9494 Schaan | Bohr- oder meisselhammer |
DE3410669A1 (de) * | 1984-03-23 | 1985-10-24 | Metabowerke GmbH & Co, 7440 Nürtingen | Daempfungselement und dessen einbau in ein motorisch angetriebenes handwerkzeug |
DE3521808A1 (de) * | 1985-06-19 | 1987-01-02 | Hilti Ag | Schwingungen erzeugendes handwerkzeug |
-
2002
- 2002-11-22 DE DE10255162A patent/DE10255162A1/de not_active Withdrawn
-
2003
- 2003-11-17 EP EP03104220A patent/EP1422029B1/de not_active Expired - Lifetime
- 2003-11-17 DE DE50313264T patent/DE50313264D1/de not_active Expired - Lifetime
- 2003-11-17 AT AT03104220T patent/ATE488332T1/de not_active IP Right Cessation
- 2003-11-19 CN CNB2003101163046A patent/CN100335239C/zh not_active Expired - Lifetime
- 2003-11-20 PL PL03363594A patent/PL363594A1/xx unknown
- 2003-11-20 US US10/718,180 patent/US6962211B2/en not_active Expired - Lifetime
- 2003-11-21 JP JP2003391907A patent/JP4344223B2/ja not_active Expired - Fee Related
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2820125A1 (de) | 1978-05-09 | 1979-11-22 | Bosch Gmbh Robert | Handwerkzeugmaschine |
DE3405922A1 (de) | 1984-02-18 | 1985-08-22 | Robert Bosch Gmbh, 7000 Stuttgart | Handwerkzeugmaschine, insbesondere bohr- oder schlaghammer |
US5025870A (en) | 1988-11-19 | 1991-06-25 | Hilti Aktiengesellschaft | Hand-held tool with displaceable spring loaded handle |
EP0837756A1 (de) | 1995-07-13 | 1998-04-29 | Atlas Copco Berema Aktiebolag | Schwingungsgedämpftes mechanisches werkzeug |
EP0849492A2 (de) * | 1996-12-18 | 1998-06-24 | Ingersoll-Rand Company | Schwingungsdämpfer für einachsige Parallelbewegung |
EP0865134A2 (de) * | 1997-03-12 | 1998-09-16 | gabo Systemtechnik GmbH | Aus zwei Halbschalen bestehendes Reparaturstück |
WO2002083369A1 (de) | 2001-04-11 | 2002-10-24 | Robert Bosch Gmbh | Handwerkzeugmaschine mit vibrationsgedämpftem handgriff |
DE20109122U1 (de) | 2001-05-31 | 2001-08-02 | Wacker-Werke GmbH & Co KG, 80809 München | Motorisch angetriebener Hammer mit einer gegen das Hammergehäuse abgefederten Schutzhaube |
Cited By (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006004546A1 (en) * | 2004-07-05 | 2006-01-12 | Atlas Copco Construction Tools Ab | Vibration damped impact tool with pressure air feed means |
EP1809443A1 (de) * | 2004-07-05 | 2007-07-25 | Atlas Copco Construction Tools AB | Schlagwerkzeug mit einem beweglichen gestützten schlagmechanismus |
WO2006004547A1 (en) * | 2004-07-05 | 2006-01-12 | Atlas Copco Construction Tools Ab | Impact tool with a movably supported impact mechanism |
EP1809443A4 (de) * | 2004-07-05 | 2011-04-27 | Atlas Copco Constr Tools Ab | Schlagwerkzeug mit einem beweglichen gestützten schlagmechanismus |
US7614460B2 (en) | 2004-07-05 | 2009-11-10 | Atlas Copco Construction Tools Ab | Impact tool with a movably supported impact mechanism |
EP2017040A1 (de) * | 2005-06-23 | 2009-01-21 | Black & Decker, Inc. | Schwingungsdämpfungsmechanismus für einen Bohrhammer |
EP1736283A3 (de) * | 2005-06-23 | 2008-05-14 | Black & Decker, Inc. | Schwingungsdämpfungsmechanismus für einen Bohrhammer |
US7451833B2 (en) | 2005-06-23 | 2008-11-18 | Black & Decker Inc. | Vibration dampening mechanism |
WO2007039356A1 (de) * | 2005-10-04 | 2007-04-12 | Robert Bosch Gmbh | Elektrowerkzeugmaschine |
CN101282821B (zh) * | 2005-10-04 | 2012-11-14 | 罗伯特·博世有限公司 | 电动工具机 |
WO2007102449A1 (en) * | 2006-03-07 | 2007-09-13 | Hitachi Koki Co., Ltd. | Electrical power tool |
US7766096B2 (en) | 2006-03-07 | 2010-08-03 | Hitachi Koki Co., Ltd. | Electrical power tool |
EP1862266A3 (de) * | 2006-05-30 | 2009-03-11 | HILTI Aktiengesellschaft | Schlagende Handwerkzeugmaschine mit axial beweglich gelagertem Schlagwerk |
EP1862266A2 (de) * | 2006-05-30 | 2007-12-05 | HILTI Aktiengesellschaft | Schlagende Handwerkzeugmaschine mit axial beweglich gelagertem Schlagwerk |
DE102007000093A1 (de) * | 2007-02-15 | 2008-08-21 | Hilti Ag | Handwerkzeuggerät |
EP1958735A1 (de) * | 2007-02-15 | 2008-08-20 | HILTI Aktiengesellschaft | Handwerkzeuggerät |
WO2012084349A1 (de) * | 2010-12-21 | 2012-06-28 | Robert Bosch Gmbh | Handwerkzeugmaschine |
Also Published As
Publication number | Publication date |
---|---|
DE10255162A1 (de) | 2004-06-03 |
JP2004174707A (ja) | 2004-06-24 |
CN100335239C (zh) | 2007-09-05 |
US20040154813A1 (en) | 2004-08-12 |
ATE488332T1 (de) | 2010-12-15 |
PL363594A1 (en) | 2004-05-31 |
EP1422029B1 (de) | 2010-11-17 |
JP4344223B2 (ja) | 2009-10-14 |
DE50313264D1 (de) | 2010-12-30 |
CN1502451A (zh) | 2004-06-09 |
US6962211B2 (en) | 2005-11-08 |
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