Title:
ブルドーザリッパーのオートリターン装置
Document Type and Number:
Japanese Patent JP4023876
Kind Code:
B2
Abstract:
An apparatus controls the movement of a ripper for a machine. Tilt and lift cylinders controllably actuate the ripper. Hydraulic control valves control the flow of hydraulic fluid to the respective cylinder. An auto-return button produces an auto-return signal in response to being depressed by the machine operator. A controller receives the auto-return signal and delivers a ripper control signal to the hydraulic control valves to automatically raise the ripper to a predetermined position.
Inventors:
Richard Jay Skiva
Richard A. Erstein
Richard A. Erstein
Application Number:
JP23993997A
Publication Date:
December 19, 2007
Filing Date:
September 04, 1997
Export Citation:
Assignee:
CATERPILLAR INCORPORATED
International Classes:
E02F5/32; E02F9/22; A01B63/102; E02F3/76; E02F9/20
Domestic Patent References:
| JP3202513A | ||||
| JP1192921A | ||||
| JP7061354A | ||||
| JP5116884A | ||||
| JP7166575A |
Attorney, Agent or Firm:
Minoru Nakamura
Fumiaki Otsuka
Shishido Kaichi
Hideto Takeuchi
Toshio Imajo
Nobuo Ogawa
Village shrine Atsuo
Fumiaki Otsuka
Shishido Kaichi
Hideto Takeuchi
Toshio Imajo
Nobuo Ogawa
Village shrine Atsuo