Title:
【発明の名称】衝打装置
Document Type and Number:
Japanese Patent JPH0617502
Kind Code:
B2
Abstract:
Percussion apparatus having a compressed air inlet (3) and serving to impart percussive movement to a tool (10), the said tool (10) sliding inside an envelope (1) fixed to the apparatus and being terminated by a spherical portion (22), includes the improvement wherein the said tool (10) includes a hollow tube (13) with one end (21) holding a ball (22) captive, which ball is urged against the end (21) by a spring (24) lodged in the tube (13). When the ball (22) is worn, it is easily changed.
Inventors:
ANDORE KUURON
Application Number:
JP2078385A
Publication Date:
March 09, 1994
Filing Date:
February 05, 1985
Export Citation:
Assignee:
ALSTHOM ATLANTIQUE
International Classes:
B21D31/06; B23P9/04; B25D17/02; B25D9/04; C21D7/06; (IPC1-7): C21D7/06; B25D9/04; B25D17/02
Attorney, Agent or Firm:
Yoshio Kawaguchi
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