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Title:
AUTOMATIC REAR WHEEL ALIGNMENT DEVICE FOR FOUR-WHEEL STEERED VEHICLE
Document Type and Number:
Japanese Patent JPH08244640
Kind Code:
A
Abstract:

To perform automatic rear wheel alignment in resetting from another steering mode to a standard steering mode by moving a spool for a flow passage change valve in synchronization with the movement of a piston in a rear wheel steering cylinder to change over the flow passage change valve to neutral, first and second conditions.

A pressure oil passing through a flow passage open/close valve 3 flows through a deviated flow passage change valve 4 into a chamber 115b in a rear wheel steering cylinder 115 where a piston 116 is deviated and moves in the opposite direction where the piston 116 is deviated. When the piston 116 reaches a neutral position, the flow passage change valve 4 reaches a neutral position where the flow passage change valve 4 cuts off a flow passage 2 in accordance with a geometrical relationship among an arm member 5 joined to a tie rod 117a of the piston 116, a crank member 6 and a spool 4a, so that additional pressure oil to be supplied to the chamber 115a is cut off for stopping functioning operation upon completion of rear wheel alignment.


Inventors:
SEON YON PAKU
Application Number:
JP1995000335806
Publication Date:
September 24, 1996
Filing Date:
November 30, 1995
Export Citation:
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Assignee:
SAMSUNG HEAVY IND
International Classes:
B62D5/07; B62D7/14; B62D7/15; B62D17/00; (IPC1-7): B62D5/07; B62D7/14
Attorney, Agent or Firm:
重信 和男 (外1名)