EP1215016A1 - Marteau perforateur avec tube rotatif pour le guidage du piston - Google Patents
Marteau perforateur avec tube rotatif pour le guidage du piston Download PDFInfo
- Publication number
- EP1215016A1 EP1215016A1 EP01811144A EP01811144A EP1215016A1 EP 1215016 A1 EP1215016 A1 EP 1215016A1 EP 01811144 A EP01811144 A EP 01811144A EP 01811144 A EP01811144 A EP 01811144A EP 1215016 A1 EP1215016 A1 EP 1215016A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- guide tube
- housing
- axial
- rotating
- hand tool
- 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
- B25D11/00—Portable percussive tools with electromotor or other motor drive
- B25D11/04—Portable percussive tools with electromotor or other motor drive in which the tool bit or anvil is hit by an impulse member
-
- 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
- B25D2250/365—Use of seals
Definitions
- the invention relates to an at least partially rotating and striking hand tool device with an axially movable striker and as a rotating tool spindle serving guide tube for an axially movable flying piston.
- the sealing elements Due to the axial displacement and the high speed of the Döppers in the direction of the tool, the sealing elements have a significantly reduced scraping ability and carry the slower movement of the striker back to the working point Dust into the striking mechanism, which crawls further into a gear.
- the spread of dust in the transmission is responsible for a significant shortening of the lifespan Transmission parts.
- DE19724531A1 extends and serves as a rotating tool spindle to switch off empty stroke, axially movable, rotating guide tube telescopic from the tool holder via a striking die into the area of the flying piston.
- An axially abutting, axially displaceable, guide tube is in the event of an empty stroke Occurring relative misalignment of the striker and thus the dust input is reduced.
- Seal problems occur on the radial Outside of the guide tube to the housing, which makes it one at this point Dust comes in, which is carried further into the transmission.
- the one serving as a rotating tool spindle is telescopic from the tool holder via a striker to the area of the flying piston extending, axially fixed guide tube a radial shaft seal between the outer surface of the guide tube and the housing.
- the blank beat shutdown takes place via a separate switching sleeve located coaxially inside the guide tube and axially displaceable by the striker.
- an axial and a rotating movement that can be dismantled is Rotary impact movement on rotating striking mechanisms, each with a separate axial seal and radial shaft seal sealed.
- EP0735230 has a rinsing head for partially rotating and striking hand tool device with a sealing element, over a Intermediate sleeve-shaped housing part with one axial and one rotating Degree of freedom, separate axial seals and radial seals.
- the task is to realize a partially rotating and striking Hand tool with a rotating and axially movable guide tube, which is sufficiently tight against dust ingress even when empty.
- a partially rotating and striking hand tool device has a Tool spindle, rotating and axially movable in a housing, one
- the flying piston is axially movable and telescopic from a tool holder Guide tube extending through a striker to the area of the flying piston on, which causes the empty beat shutdown by an axial displacement, a sealing element arranged between the outer surface of the guide tube and the housing as seals at least one axial seal for purely axial movement and has at least one radial shaft seal for the purely rotating movement.
- the housing part is advantageously designed as a sleeve, whereby standardized ring-shaped Seals can be used.
- the axial seal is advantageous as a static seal, such as a bellows, formed, whereby a space-saving and limited in terms of the limited number axial displacements of the guide tube achieved a reliable seal becomes.
- the housing part is at least partially offset radially, thereby creating an axial Stop to the housing or the guide tube is formed.
- Hand tool device 1 serving as a tool spindle, rotating in a housing 2 and axially movable, a flying piston 3 axially movable leading and telescopic from a tool holder 4 via a striker 5 to the area of the flying piston 3 extending into the guide tube 6, which the empty stroke shutdown by a axial displacement 7 causes.
- One between the outer surface of the guide tube 6 and the sealing element 8 arranged in the housing 2 has a ring-shaped seal Scraper ring designed axial seal 9 for purely axial movement and one, as an annular Radial shaft sealing ring designed, radial shaft seal 10 for the purely rotating Movement on.
- the housing 2 Between the guide tube 6 and the housing 2 is a to the housing 2, designed as a radially offset sleeve, non-rotatable, axially movable housing part 11 on the outside arranged coaxially to the guide tube 6, the radial shaft seal 10 between the Guide tube 6 and the housing part 11 and the axial seal 9 between the housing part 11 and the housing 2 is arranged.
- this is a radial shaft seal 10 between the housing part 11 and the Guide tube 6 containing sealing element 8 with an axial seal 9 between the Housing part 11 and the housing 2 formed, wherein the axial seal 9 is a bellows 12 with an axial length assigned to the axial displacement 7.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Percussive Tools And Related Accessories (AREA)
- Containers And Plastic Fillers For Packaging (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10061810 | 2000-12-12 | ||
DE10061810A DE10061810A1 (de) | 2000-12-12 | 2000-12-12 | Schlagendes Handwerkzeuggerät mit drehendem Führungsrohr |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1215016A1 true EP1215016A1 (fr) | 2002-06-19 |
EP1215016B1 EP1215016B1 (fr) | 2007-10-31 |
Family
ID=7666789
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01811144A Expired - Lifetime EP1215016B1 (fr) | 2000-12-12 | 2001-11-26 | Marteau perforateur avec tube rotatif pour le guidage du piston |
Country Status (5)
Country | Link |
---|---|
US (1) | US6578644B2 (fr) |
EP (1) | EP1215016B1 (fr) |
JP (1) | JP4040295B2 (fr) |
CN (1) | CN1236897C (fr) |
DE (2) | DE10061810A1 (fr) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004028371A1 (de) * | 2004-06-11 | 2005-12-29 | Hilti Ag | Schlagende Werkzeugmaschine mit Spülkopf |
DE102005062777A1 (de) * | 2005-12-28 | 2007-07-05 | Robert Bosch Gmbh | Schlagbolzen für ein Schlagwerk |
JP4794306B2 (ja) * | 2006-01-27 | 2011-10-19 | 株式会社マキタ | 打撃工具 |
DE102007056531A1 (de) * | 2007-11-23 | 2009-05-28 | Hilti Aktiengesellschaft | Handwerkzeugmaschine mit Schlagwerkzeugaufnahme und zugeordnetes Werkzeug |
US8360167B2 (en) | 2010-08-11 | 2013-01-29 | Caterpillar Inc. | Composite seal for a hydraulic hammer |
DE102011082080A1 (de) * | 2011-09-02 | 2013-03-07 | Robert Bosch Gmbh | Werkzeughalter für eine Handwerkzeugmaschine |
EP3231560A1 (fr) | 2016-04-13 | 2017-10-18 | HILTI Aktiengesellschaft | Machine-outil portative |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2099748A (en) * | 1981-05-30 | 1982-12-15 | Bosch Gmbh Robert | A hammer drill |
DE3610680A1 (de) * | 1986-03-29 | 1987-10-01 | Bosch Gmbh Robert | Dichtung |
EP0884138A2 (fr) * | 1997-06-11 | 1998-12-16 | Robert Bosch Gmbh | Marteau piqueur |
DE19805187A1 (de) * | 1998-02-10 | 1999-08-12 | Bosch Gmbh Robert | Handwerkzeugmaschine, insbesondere Bohr- bzw. Schlaghammer |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3712387A (en) * | 1968-11-04 | 1973-01-23 | Amoco Prod Co | Rotary percussion drilling motor |
DE2618596C2 (de) * | 1976-04-28 | 1984-05-17 | Robert Bosch Gmbh, 7000 Stuttgart | Werkzeughalter |
DE2925467A1 (de) * | 1979-06-23 | 1981-01-22 | Salzgitter Maschinen Ag | Dichtvorrichtung zwischen spuelrohr und einsteckende eines schlaggeraets |
DE3125454A1 (de) * | 1981-06-29 | 1983-01-20 | Hilti AG, 9494 Schaan | Bohrhammer fuer bohr- und schlagbohrbetrieb |
JPS6190883A (ja) * | 1984-10-12 | 1986-05-09 | 日東工器株式会社 | 空圧式衝撃工具等の緩衝装置 |
AT406288B (de) | 1995-03-31 | 2000-03-27 | Boehler Pneumatik Int Gmbh | Antriebskopf für die aufnahme und führung eines einsteckwerkzeuges |
DE19628815C2 (de) * | 1996-07-17 | 1999-02-25 | Krupp Berco Bautechnik Gmbh | Schutzvorrichtung zum Verhindern des Eindringens von Verunreinigungen an einem fluidbetriebenen Schlagwerk |
-
2000
- 2000-12-12 DE DE10061810A patent/DE10061810A1/de not_active Withdrawn
-
2001
- 2001-11-26 DE DE50113192T patent/DE50113192D1/de not_active Expired - Lifetime
- 2001-11-26 EP EP01811144A patent/EP1215016B1/fr not_active Expired - Lifetime
- 2001-11-29 CN CNB011424656A patent/CN1236897C/zh not_active Expired - Fee Related
- 2001-12-07 US US10/017,938 patent/US6578644B2/en not_active Expired - Lifetime
- 2001-12-11 JP JP2001377324A patent/JP4040295B2/ja not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2099748A (en) * | 1981-05-30 | 1982-12-15 | Bosch Gmbh Robert | A hammer drill |
DE3610680A1 (de) * | 1986-03-29 | 1987-10-01 | Bosch Gmbh Robert | Dichtung |
EP0884138A2 (fr) * | 1997-06-11 | 1998-12-16 | Robert Bosch Gmbh | Marteau piqueur |
DE19805187A1 (de) * | 1998-02-10 | 1999-08-12 | Bosch Gmbh Robert | Handwerkzeugmaschine, insbesondere Bohr- bzw. Schlaghammer |
Also Published As
Publication number | Publication date |
---|---|
DE10061810A1 (de) | 2002-06-13 |
JP4040295B2 (ja) | 2008-01-30 |
CN1236897C (zh) | 2006-01-18 |
US6578644B2 (en) | 2003-06-17 |
DE50113192D1 (de) | 2007-12-13 |
JP2002219670A (ja) | 2002-08-06 |
CN1358612A (zh) | 2002-07-17 |
US20020070036A1 (en) | 2002-06-13 |
EP1215016B1 (fr) | 2007-10-31 |
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