| 摘要 |
A fluid drive arrangement of a vehicle is shiftable to forward and reverse drive conditions when actuating fluid from an auxiliary source of pressurized fluid is directed to a hydraulic actuator device of the fluid drive arrangement and is shifted to a neutral position automatically when the flow of actuating fluid to the hydraulic actuator device is blocked. A solenoid operated valve device is disposed between the auxiliary source of fluid and the hydraulic actuator device and has an energized fluid supplying position for directing actuating fluid to the hydraulic actuator device and a de-energized fluid blocking position for blocking pressurized fluid from the hydraulic actuator device. An electrical switch is disposed within a conductor line connecting a source of electrical energy to the solenoid operated valve device and has a closed position for completing an electrical circuit to energize the solenoid operated valve device and an open position for de-energizing the solenoid operated valve device. The electrical switch is disposed beneath an operator's seat of the vehicle in a position to be engaged by the seat and actuated to its closed position when the seat is moved to its lowered occupied position and is actuated to its open position when the seat is moved to its raised unoccupied position.
|
