Title:
STEERING CONTROL SYSTEM BY PILOT PRESSURE
Document Type and Number:
WIPO Patent Application WO/1992/013746
Kind Code:
A1
Abstract:
The present invention relates to a steering control system by pilot pressure, in which responsiveness is good, controlling force is light and a control input of a control lever is always constant independent of the wear of a brake and a clutch. For this purpose, the control lever (1) during right and left steering is directly coupled to a pilot pressure control valve (2), and the pilot pressure valve (2) is connected to a clutch piston (4) for on-off operating a clutch (3) and a brake cylinder (6) for on-off operating a brake (5) through pipings (10, 17), respectively. When the control lever (1) is operated to the right or left, the pilot pressure control valve (2) is actuated on the side of being operated, whereby the clutch (3) is disconnected, and subsequently, the brake (5) is applied.
Inventors:
YAMAMOTO HARUHISA (JP)
OIKAWA MASAZUMI (JP)
OIKAWA MASAZUMI (JP)
Application Number:
PCT/JP1992/000033
Publication Date:
August 20, 1992
Filing Date:
January 17, 1992
Export Citation:
Assignee:
KOMATSU MFG CO LTD (JP)
International Classes:
B62D11/08; (IPC1-7): B62D11/08
Foreign References:
| JPS534289B2 | 1978-02-16 | |||
| US3677362A | 1972-07-18 | |||
| DE2109140A1 | 1972-08-31 |
Other References:
See also references of EP 0570585A4
None
None
Attorney, Agent or Firm:
Hashizume, Yoshihiko (3-6 Akasaka 2-chom, Minato-ku Tokyo 107, JP)
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