| 摘要 |
PURPOSE:To prevent oil from leakage and enable a wide range of car height adjustment with a small change of hydraulic pressure by providing a piston cylinder for the car height adjustment which is suspended on a car body by an elastic body at the upper end of the piston rod in a hydraulic buffer and which adjoins to the car height adjusting oil room. CONSTITUTION:When oil is sent to an oil room 14 and hydraulic pressure increases slightly, a piston 6 for car height adjustment 6 decreases in a cylindrical body 7, an elastic body 11 is deformed, and the oil room 14 is expanded. Therefore, the car height can be increased. On the contrary, when the oil in the oil room 14 is removed and hydraulic pressure decreases slightly, the elastic body 11 is restored, the oil room 14 is reduced, and the car height is decreased. As described above, by fitting the piston 6 for the car height adjustment in the cylindrical body 7, a wide range of car height is enabled with a slight hydraulic change and hydraulic pressure can be reduced. As a result, oil leakage can be prevented. |
