| 摘要 |
PURPOSE:To improve the horizontal holding performance of a vehicle by normally connecting the upper and lower oil pressure chambers to an oil tank through a throttle valve and inserting an oil pressure cylinder whose rod protruded position can be fixed between the body and axle shaft of a work car in which a suspension is interposed. CONSTITUTION:At normal running, oil can freely flow into the upper and lower chambers of an oil pressure cylinder 9 and a suspension 4 mainly supports an axle 6. Thus, when a car runs on a right-lowering inclined surface and the car body 2 is lowered right, the inlet 14a of a changeover valve 14 and the first port 14b or the second port 14c and an outlet 14d are connected together respectively, pressurized oil is guided to the upper chamber of the right oil pressure cylinder 9, a rod 9d is protruded downward, and the interval between the car body 2 and axle 6 is extended. The pressurized oil in the lower chamber is returned to a tank 10. In this case, the left side is fixed by actuating a pilot pipe 20 and a sequence valve 17' and preventing pressurized oil from flowing into the left cylinder 9. As a result, the lateral inclination can be corrected. |
