| 摘要 |
PURPOSE:To simplify a rolling controller mounted on a working vehicle equipped with moving units vertically movably fitted on the body of the vehicle, by providing the controller with an artifical instruction unit to send information about which should be moved up or down and to instruct the starting of operation. CONSTITUTION:A contact 13a or 13b is turned on by operating a vertical motion instructing lever 11. The contact 10a or 10b of a rolling sensor remains on when a vehicle body is rolling. Electricity is supplied from a battery 14 through the contact 10a or 10b and the contact 13a or 13b to the solenoids 16a-16d of solenoid valves 15a, 15b for controlling the expansion and compression of a right and left hydraulic cylinders 7a, 7b. The desired hydraulic cylinder 7a or 7b is thus driven to move the vehicle body up or down. When the vehicle body is put in horizontal posture, the sensor contacts 10a, 10b are turned off to stop the upward or downward motion of the vehicle body. According to this constitution, a controller is simplified. |
