Title:
HYDRAULIC APPARATUS OF BULLDOZER
Document Type and Number:
WIPO Patent Application WO/1998/029615
Kind Code:
A1
Abstract:
To prevent a large torsional force from acting on a car body frame due to the operation of a blade lift cylinder, when the occurrence condition of the torsional force acting on the car body frame by the operation of the blade lift cylinder (9) is judged, the supply of a pressure oil to the blade lift cylinder (9) through a lift operation valve (26) is stopped and the operation of the blade lift cylinder (9) is stopped. A construction in which the pressure oil flow rate supplied to the blade lift cylinder (9) is limited to decelerate the operation of the blade lift cylinder (9) may be employed, too.
Inventors:
YAMAMOTO SHIGERU (JP)
NAGASE HIDEKAZU (JP)
NAGASE HIDEKAZU (JP)
Application Number:
PCT/JP1997/003957
Publication Date:
July 09, 1998
Filing Date:
October 29, 1997
Export Citation:
Assignee:
KOMATSU MFG CO LTD (JP)
YAMAMOTO SHIGERU (JP)
NAGASE HIDEKAZU (JP)
YAMAMOTO SHIGERU (JP)
NAGASE HIDEKAZU (JP)
International Classes:
E02F3/84; E02F3/85; E02F9/22; (IPC1-7): E02F3/85
Foreign References:
| JPH08260506A | 1996-10-08 | |||
| JPS6363830A | 1988-03-22 | |||
| JPH0437650U | 1992-03-30 |
Attorney, Agent or Firm:
Inoue, Tsutomu (2-12 Itachibori 1-chome, Nishi-k, Osaka-shi Osaka 550, JP)
Download PDF:
Previous Patent: FORM IN-PLACE DISPENSER CONTAINMENT
Next Patent: CEILING GRID WITH BEVEL CONFIGURATION
Next Patent: CEILING GRID WITH BEVEL CONFIGURATION