EP1340596A1 - Mécanisme de percussion à ressort pneumatique - Google Patents
Mécanisme de percussion à ressort pneumatique Download PDFInfo
- Publication number
- EP1340596A1 EP1340596A1 EP03405098A EP03405098A EP1340596A1 EP 1340596 A1 EP1340596 A1 EP 1340596A1 EP 03405098 A EP03405098 A EP 03405098A EP 03405098 A EP03405098 A EP 03405098A EP 1340596 A1 EP1340596 A1 EP 1340596A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- flying piston
- striker
- pneumatic
- radial
- radial gap
- 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
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
- B25D11/00—Portable percussive tools with electromotor or other motor drive
- B25D11/005—Arrangements for adjusting the stroke of the impulse member or for stopping the impact action when the tool is lifted from the working surface
-
- 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
- B25D17/06—Hammer pistons; Anvils ; Guide-sleeves for pistons
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D2217/00—Details of, or accessories for, portable power-driven percussive tools
- B25D2217/0011—Details of anvils, guide-sleeves or pistons
- B25D2217/0015—Anvils
-
- 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
- B25D2250/131—Idling mode of tools
Definitions
- the invention relates to a pneumatic hammer mechanism for an at least partially hitting hand machine tool such as a chisel hammer or hammer drill.
- a pneumatic percussion mechanism has a guided and in a guide tube an air spring powered flying piston, which is usually limited to one axially movable striker strikes itself on the front end of a limited axially movable Tool meets.
- Pneumatic striking mechanisms occur under certain working conditions such as missing Back pressure from the workpiece a look up of the die on the tool, which according to DE3804026 about air passages in the flying piston and a rotatable Guide tube is prevented.
- the object of the invention is the technologically simple implementation of a Pneumatic striking mechanism of short design without reference.
- a pneumatic striking mechanism for at least partially the hand-held machine tool strikes a pot-shaped flying piston in its pot space radially inside an anvil penetrates movably within an axial penetration length and with this a damping, pneumatically effective radial gap essentially forms a gastight closed pot space, which is axially by the flying piston driven striker forces within the penetration length to reverse movement.
- the radial annular gap between the anvil and the flying piston is advantageous formed gap area 3% to 6% of the inside of the flying piston by the anvil formed cross-section of the crosspiece, which results in the usual beat frequencies from 50Hz to 100Hz within 10mm there is a reversal of movement.
- Hand tool 1 shows one shown in the empty stroke case at the reversal point of movement
- Hand tool 1 has a cup-shaped flying piston 2, in which a radially inside Döpper 3 penetrates movably within an axial penetration length L on the tool side over part of its outer surface with part of the inner surface of the Flying piston 2 a damping, pneumatically effective radial gap X to an im forms essentially gas-tight closed pot space 4.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Percussive Tools And Related Accessories (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10209293A DE10209293A1 (de) | 2002-03-01 | 2002-03-01 | Pneumatisches Schlagwerk |
DE10209293 | 2002-03-01 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1340596A1 true EP1340596A1 (fr) | 2003-09-03 |
EP1340596B1 EP1340596B1 (fr) | 2010-02-03 |
Family
ID=27675174
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03405098A Expired - Lifetime EP1340596B1 (fr) | 2002-03-01 | 2003-02-19 | Mécanisme de percussion à ressort pneumatique |
Country Status (5)
Country | Link |
---|---|
US (1) | US20030221847A1 (fr) |
EP (1) | EP1340596B1 (fr) |
JP (1) | JP4340081B2 (fr) |
CN (1) | CN1442276A (fr) |
DE (2) | DE10209293A1 (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008074549A1 (fr) * | 2006-12-20 | 2008-06-26 | Robert Bosch Gmbh | Dispositif de percussion pour une machine-outil à main |
WO2013004459A1 (fr) * | 2011-07-05 | 2013-01-10 | Robert Bosch Gmbh | Dispositif à percussion |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005030340B3 (de) * | 2005-06-29 | 2007-01-04 | Wacker Construction Equipment Ag | Schlagwerk mit elektrodynamischem Linearantrieb |
AU2007202963A1 (en) | 2006-07-01 | 2008-01-17 | Black & Decker, Inc. | A beat piece wear indicator for a hammer drill |
US7413026B2 (en) | 2006-07-01 | 2008-08-19 | Black & Decker Inc. | Lubricant system for powered hammer |
JP2008012665A (ja) | 2006-07-01 | 2008-01-24 | Black & Decker Inc | 舗装破砕機用工具ホルダー |
DE102006000395A1 (de) * | 2006-08-07 | 2008-02-14 | Hilti Ag | Handwerkzeugmaschine mit pneumatischem Schlagwerk |
SE531658C2 (sv) * | 2006-10-02 | 2009-06-23 | Atlas Copco Rock Drills Ab | Slagverk jämte bergborrmaskin och bergborrigg |
US9216502B2 (en) | 2008-04-03 | 2015-12-22 | Black & Decker Inc. | Multi-stranded return spring for fastening tool |
US8534527B2 (en) * | 2008-04-03 | 2013-09-17 | Black & Decker Inc. | Cordless framing nailer |
KR101412092B1 (ko) * | 2013-11-28 | 2014-07-02 | 주식회사 엔와이테크 | 저소음형 유압 타격 장치 |
WO2017199823A1 (fr) * | 2016-05-18 | 2017-11-23 | 株式会社マキタ | Outil à impact |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB173093A (en) * | 1920-10-07 | 1921-12-29 | Chicago Pneumatic Tool Co | Improvements in power hammers |
DE2702128A1 (de) * | 1977-01-20 | 1978-07-27 | Metabowerke Kg | Motorisch angetriebener hammer, bei dem in einem zylinder ein kolben verschiebbar gefuehrt ist |
DE2929191A1 (de) * | 1979-07-19 | 1981-01-29 | Metabowerke Kg | Elektropneumatischer hammer |
DE3804026A1 (de) * | 1987-12-21 | 1989-08-24 | Bosch Gmbh Robert | Motorisch angetriebener meissel- oder bohrhammer |
JPH07328955A (ja) * | 1994-06-09 | 1995-12-19 | Hitachi Koki Co Ltd | ハンマドリル |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2844086A1 (de) * | 1978-10-10 | 1980-04-30 | Bosch Gmbh Robert | Handwerkzeugmaschine, insbesondere schlaghammer |
DE2844109A1 (de) * | 1978-10-10 | 1980-04-24 | Bosch Gmbh Robert | Handwerkzeugmaschine, insbesondere bohr- und/oder schlaghammer |
US4462467A (en) * | 1981-11-09 | 1984-07-31 | Hilti Aktiengesellschaft | Percussion drill machine |
US4582144A (en) * | 1984-04-25 | 1986-04-15 | Makita Electric Works, Ltd. | Percussive tools |
DE10032949A1 (de) * | 2000-07-06 | 2002-01-17 | Hilti Ag | Schraubgerät |
-
2002
- 2002-03-01 DE DE10209293A patent/DE10209293A1/de not_active Withdrawn
-
2003
- 2003-02-19 DE DE50312392T patent/DE50312392D1/de not_active Expired - Lifetime
- 2003-02-19 EP EP03405098A patent/EP1340596B1/fr not_active Expired - Lifetime
- 2003-02-27 CN CN03106726.3A patent/CN1442276A/zh active Pending
- 2003-02-27 US US10/376,007 patent/US20030221847A1/en not_active Abandoned
- 2003-02-28 JP JP2003052660A patent/JP4340081B2/ja not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB173093A (en) * | 1920-10-07 | 1921-12-29 | Chicago Pneumatic Tool Co | Improvements in power hammers |
DE2702128A1 (de) * | 1977-01-20 | 1978-07-27 | Metabowerke Kg | Motorisch angetriebener hammer, bei dem in einem zylinder ein kolben verschiebbar gefuehrt ist |
DE2929191A1 (de) * | 1979-07-19 | 1981-01-29 | Metabowerke Kg | Elektropneumatischer hammer |
DE3804026A1 (de) * | 1987-12-21 | 1989-08-24 | Bosch Gmbh Robert | Motorisch angetriebener meissel- oder bohrhammer |
JPH07328955A (ja) * | 1994-06-09 | 1995-12-19 | Hitachi Koki Co Ltd | ハンマドリル |
Non-Patent Citations (1)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 1996, no. 04 30 April 1996 (1996-04-30) * |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008074549A1 (fr) * | 2006-12-20 | 2008-06-26 | Robert Bosch Gmbh | Dispositif de percussion pour une machine-outil à main |
US8011443B2 (en) | 2006-12-20 | 2011-09-06 | Robert Bosch Gmbh | Striking mechanism for a handheld power tool |
WO2013004459A1 (fr) * | 2011-07-05 | 2013-01-10 | Robert Bosch Gmbh | Dispositif à percussion |
US20140144658A1 (en) * | 2011-07-05 | 2014-05-29 | Robert Bosch Gmbh | Percussion mechanism apparatus |
Also Published As
Publication number | Publication date |
---|---|
DE10209293A1 (de) | 2003-09-18 |
DE50312392D1 (de) | 2010-03-25 |
EP1340596B1 (fr) | 2010-02-03 |
JP4340081B2 (ja) | 2009-10-07 |
US20030221847A1 (en) | 2003-12-04 |
CN1442276A (zh) | 2003-09-17 |
JP2003266332A (ja) | 2003-09-24 |
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