| 摘要 |
PROBLEM TO BE SOLVED: To secure a body attitude adapted to the number of occupants and loading of cargo by a composition easily and inexpensively applicable to a small vehicle. SOLUTION: The body attitude adjusting device is provided with a hydraulic jack J installed in a suspension A and supporting a body via a suspension spring 8, a spring 15 energizing a free piston 12 in a cylinder of a hydraulic screw pump 9 toward a first oil chamber 13 direction, an oil passage connecting a second oil chamber 14 and an oil chamber 7 of the hydraulic jack J, a piston 11 of the hydraulic screw pump 9 partitioning off a first oil chamber 11 in a space relative to the free piston 12, and a driving means D driving a rod 17 integrated with the piston 11. A controller 23 calculates a vehicle height on the basis of each output of a first pressure sensor 21 and a second pressure sensor 22 and it controls a driving amount of the driving means D so that the vehicle height is a preset proper vehicle height. |
