Title:
伸縮型フィーダー用の上方ビーム、伸縮型フィーダー及び削岩用穿孔装置
Document Type and Number:
Japanese Patent JP5152996
Kind Code:
B2
Abstract:
The object of the invention is to provide a drilling device which is compact and has good sliding properties. The object is achieved by an upper beam for use with a lower beam in a telescopic feeder for a drilling device for rock drilling. The upper beam extends along a longitudinal axis and has a generally U-shaped cross section comprising a bottom wall and a first and a second side wall. Each side wall has an inward surface and an outward surface. The upper beam comprises a cooperating member intended for sliding cooperation with the lower beam. The cooperating member comprises an attachment structure extending outwardly from each outward surface of each side wall. Each attachment structure is intended for fixed mounting of a crank block bracket, which crank block bracket faces the outward surface of each side wall.
Inventors:
Suff, Huedrick
Application Number:
JP2008554182A
Publication Date:
February 27, 2013
Filing Date:
January 19, 2007
Export Citation:
Assignee:
Atlas Copco Rock Drills Activolag
International Classes:
E21B15/00; E21B7/02
Domestic Patent References:
| JP2003214081A | ||||
| JP9502232A | ||||
| JP9296677A | ||||
| JP11303563A |
Attorney, Agent or Firm:
Takao Hamano
Teruichi Hirai
Teruichi Hirai