Title:
METHOD OF DRIVING IMPACT RIPPER
Document Type and Number:
Japanese Patent JPH04277228
Kind Code:
A
Abstract:
PURPOSE: To prevent a seal, a piston, and a cutting edge, etc., from being broken and extend the service lie of these parts by operating a breaker intermittently so that these parts are cooled while the breaker is not operated.
CONSTITUTION: The operation of a breaker 10 is detected and when the operation time reaches a predetermined value, the operation operate an impact ripper intermittently. While the breaker 10 is not operating heat generating portions of a seal, a piston, and a cutting edge are cooled.
Inventors:
MATSUMOTO NORIHISA
KANDA TOSHIHIKO
KANDA TOSHIHIKO
Application Number:
JP5840791A
Publication Date:
October 02, 1992
Filing Date:
February 28, 1991
Export Citation:
Assignee:
KOMATSU MFG CO LTD
International Classes:
E02F5/32; E02F9/22; (IPC1-7): E02F5/32; E02F9/22
Attorney, Agent or Firm:
Yoshihiko Hashizume