Title:
HYDRAULIC CIRCUIT OF PUSH CYLINDER
Document Type and Number:
Japanese Patent JP2001088733
Kind Code:
A
Abstract:
To prevent locking in mechanism caused by simultaneous operation of right and left running brakes generating at the time of valve function trouble of a check valve to flow pressure oil to a power steering relief valve in steering truning control of a combined harvester and thresher or the like.
A push cylinder 7, in which a piston 1 is operated with input pressure oil to put off an operation clutch, then simultaneously therewith a power steering relief valve 4 is operated with the pressure oil through a check valve 3 to thereby operate a running brake 5 or turning clutch 6, is provided with a T port for escaping pressure oil flowing to the non-operation side running brake 5 caused by malfunction of the valve 3.
Inventors:
KOBAYASHI ISAO
SHIGEMATSU FUMIO
OTSUKA KOJI
SHIGEMATSU FUMIO
OTSUKA KOJI
Application Number:
JP26569399A
Publication Date:
April 03, 2001
Filing Date:
September 20, 1999
Export Citation:
Assignee:
ISEKI AGRICULT MACH
International Classes:
A01B69/00; B62D11/08; (IPC1-7): B62D11/08; A01B69/00
Previous Patent: RICE PLANTING MACHINE OF RIDING TYPE
Next Patent: STEERING CONTROL DEVICE FOR WORKING VEHICLE
Next Patent: STEERING CONTROL DEVICE FOR WORKING VEHICLE