EP1215016B1 - 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
- EP1215016B1 EP1215016B1 EP01811144A EP01811144A EP1215016B1 EP 1215016 B1 EP1215016 B1 EP 1215016B1 EP 01811144 A EP01811144 A EP 01811144A EP 01811144 A EP01811144 A EP 01811144A EP 1215016 B1 EP1215016 B1 EP 1215016B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- housing
- axial
- guide tube
- accordance
- held 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.)
- Expired - Lifetime
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 refers to an at least partially rotating and beating hand tool with an axially movable striker and serving as a rotating tool spindle guide tube for an axially movable air piston.
- the axial impact is transmitted from the flying piston via the striker slightly axially movable striker on a tool. Due to the oscillating movement of the bonnet in the percussion mechanism, either some dust is always conveyed to the percussion mechanism or some oil from the percussion mechanism, which can be largely prevented by means of sealing elements. If there is no counterforce via the tool, the high-speed striker reaches into an empty-striking area axially adjacent to the tool, which can be used to switch off the space.
- the sealing elements By taking place in the case of idle axial displacement and the high speed of the striker toward tool, the sealing elements have a significantly reduced Abstreifget and contribute to the slower movement of the striker back to the working point dust in the percussion, which creeps into a transmission.
- the Staubverschleppung in the transmission is responsible for a significant service life shortening of the gear parts.
- DE19724531A1 extends, serving as a rotating tool spindle and for Leerschlagabsciens axially movable, rotating guide tube telescopically from the tool holder via an anvil into the area of the flying piston inside.
- an axially abutting, axially displaceable, guide tube the relative misalignment of the striker occurring in the case of no-spalling and thus the dust entry is reduced.
- Due to the axial displacement of the rotating guide tube sealing problems occur on the radial outer side of the guide tube to the housing, whereby it comes at this point to a dust entry, which is further entrained in the transmission.
- EP0759341 has the serving as a rotating tool spindle, telescopically extending from the tool holder via an anvil into the area of the flying piston into it, axially fixed guide tube a radial shaft seal between the outer surface of the guide tube and the housing.
- the Leertschabscnies via a separate, coaxial in the guide tube inside, axially displaceable by the striker switching sleeve.
- GB2053769 is a, separable into an axial and a rotating movement, rotary impact movement with rotating impactors, each sealed with a separate axial seal and radial shaft seal.
- EP0735230 a rinsing head for a partially rotating and beating hand tool device with a sealing element, via an intermediate sleeve-shaped housing part, each having an axial and a circumferential degree of freedom, separate axial seals and radial seals.
- the object is the realization of a partially rotating and beating hand tool with a rotating and axially movable guide tube, which is sufficiently tight against dust entry even in the case of no-load.
- a partially rotating and beating hand tool serving as a tool spindle, rotating in a housing and axially movable, a flying piston axially movable leading and telescoping from a tool holder on a striker into the area of the flying piston extending into guide tube, which the Leertschabscen effected by an axial displacement, wherein arranged between the outer surface of the guide tube and the housing sealing element as seals at least one axial seal for the purely axial movement and at least one radial shaft seal for the purely rotating movement.
- a housing rotatably, axially movable housing part coaxially outside the guide tube, wherein the radial shaft seal between the guide tube and the housing part and the axial seal between the housing part and the housing is arranged, whereby a simple separation of the rotary impact movement possible is.
- the housing part is designed as a sleeve, whereby standardized annular seals can be used.
- the axial seal as a static seal, such as. A bellows, formed, whereby a space-saving and relative to the limited number of limited axial displacements of the guide tube, a reliable seal is achieved.
- the housing part is at least partially radially offset, whereby an axial stop to the housing or the guide tube is formed.
- a partially illustrated, partially rotating and beating hand tool 1 serving as a tool spindle, rotating in a housing 2 and axially movable, a flying piston 3 axially movable leader and telescopically from a tool holder 4 via an anvil 5 into the Area of the flying piston 3 into extending guide tube 6, which causes the Leerschlagabscnies by an axial displacement 7.
- a arranged between the outer surface of the guide tube 6 and the housing 2 sealing element 8 has as seals designed as an annular scraper axial seal 9 for purely axial movement and, designed as an annular radial shaft seal, radial shaft seal 10 for the purely rotating movement.
- the, a radial shaft seal 10 between the housing part 11 and the guide tube 6-containing, sealing element 8 is formed with an axial seal 9 between the housing part 11 and the housing 2, wherein the axial seal 9 associated with a bellows 12 with one of the axial displacement 7 axial length forms.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Percussive Tools And Related Accessories (AREA)
- Containers And Plastic Fillers For Packaging (AREA)
Claims (7)
- Appareil portatif pour générer un mouvement au moins partiellement tournant et percutant, comprenant un tube de guidage (6) qui est monté tournant et déplaçable axialement dans un carter (2), qui guide en translation axiale un piston volant (3), qui s'étend télescopiquement d'un raccord d'outil (4) jusqu'à la zone du piston volant (3) en passant par une bouterolle (5) et qui, moyennant un déplacement axial (7), provoque une neutralisation de la percussion à vide, caractérisé en ce qu'un élément d'étanchéité (8) disposé entre le tube de guidage (6) et le carter (2) comporte comme joints au moins un joint axial (9) pour le déplacement purement axial et au moins un joint radial d'arbre (10) pour le mouvement purement rotatif.
- Appareil portatif selon la revendication 1, caractérisé en ce qu'entre le tube de guidage (6) et le carter (2) est disposée, coaxialement au tube de guidage (6), une partie de carter mobile axialement (11) solidaire en rotation du carter (2).
- Appareil portatif selon la revendication 2, caractérisé en ce que le joint radial d'arbre (10) est disposé entre le tube de guidage (6) et la partie de carter (11), et le joint axial (9) est disposé entre la partie de carter (11) et le carter (2).
- Appareil portatif selon la revendication 2 ou la revendication 3, caractérisé en ce que la partie de carter (11) est conformée en manchon.
- Appareil portatif selon une des revendications précédentes, caractérisé en ce que le joint axial (9) est conformé en joint statique à soufflet plissé (12).
- Appareil portatif selon la revendication 5, caractérisé en ce que le soufflet plissé (12) présente une longueur axiale correspondant au déplacement axial (7).
- Appareil portatif selon une des revendications précédentes, caractérisé en ce que la partie de carter (11) présente au moins partiellement un décrochement radial.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10061810A DE10061810A1 (de) | 2000-12-12 | 2000-12-12 | Schlagendes Handwerkzeuggerät mit drehendem Führungsrohr |
DE10061810 | 2000-12-12 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1215016A1 EP1215016A1 (fr) | 2002-06-19 |
EP1215016B1 true 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 |
Family Cites Families (11)
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 |
DE3121616A1 (de) * | 1981-05-30 | 1982-12-23 | Robert Bosch Gmbh, 7000 Stuttgart | Bohrhammer |
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 |
DE3610680A1 (de) * | 1986-03-29 | 1987-10-01 | Bosch Gmbh Robert | Dichtung |
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 |
DE19724531B4 (de) * | 1997-06-11 | 2005-07-14 | Robert Bosch Gmbh | Bohrhammer |
DE19805187B4 (de) * | 1998-02-10 | 2006-03-16 | Robert Bosch Gmbh | Handwerkzeugmaschine, insbesondere Bohr- bzw. Schlaghammer |
-
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
Also Published As
Publication number | Publication date |
---|---|
US20020070036A1 (en) | 2002-06-13 |
JP4040295B2 (ja) | 2008-01-30 |
DE50113192D1 (de) | 2007-12-13 |
JP2002219670A (ja) | 2002-08-06 |
US6578644B2 (en) | 2003-06-17 |
EP1215016A1 (fr) | 2002-06-19 |
CN1236897C (zh) | 2006-01-18 |
CN1358612A (zh) | 2002-07-17 |
DE10061810A1 (de) | 2002-06-13 |
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