Title:
油圧破砕ハンマー
Document Type and Number:
Japanese Patent JP2007528798
Kind Code:
A
Abstract:
Hydraulic breaker hammer comprising a housing ( 10 ) with a longitudinal bore ( 12 ), a cylinder sleeve ( 14 ) mounted in the bore ( 12 ), a hammer piston ( 15 ) sealing guided in the cylinder sleeve ( 14 ), a guide sleeve ( 21 ) located in the front end portion of the bore ( 12 ) for receiving a working implement, and a rear end cover ( 16 ) forming a closure for the rear end of the bore ( 12 ). The rear end cover ( 16 ) comprises a tubular neck portion ( 17 ) which is formed integral as a one piece member with the end cover and which extends into the bore ( 12 ). The neck portion ( 17 ) forms a guide means for the hammer piston ( 15 ), and the bore ( 12 ) having an axially facing annular shoulder ( 18 ), wherein the cylinder sleeve ( 14 ) is supported in a correct operating position between the shoulder ( 18 ) and the end cover neck portion ( 17 ).
Inventors:
Henrixon, Shuteig, Roland
Application Number:
JP2007502761A
Publication Date:
October 18, 2007
Filing Date:
March 07, 2005
Export Citation:
Assignee:
Atlas Copco Construction Tools Activolag
International Classes:
B25D9/04; B25D9/12; B25D9/14; B25D17/00; B25D17/26; B25D
Domestic Patent References:
| JP2003071744A | 2003-03-12 | |||
| JPS58143180U | 1983-09-27 | |||
| JPH07506058A | 1995-07-06 |
Foreign References:
| WO1997002386A1 | 1997-01-23 | |||
| US5445232A | 1995-08-29 |
Attorney, Agent or Firm:
Takao Hamano
Morita Tetsuji
Teruichi Hirai
Morita Tetsuji
Teruichi Hirai