JPH0230551U

JPH0230551U -

Info

Publication number: JPH0230551U
Application number: JP10851388U
Authority: JP
Priority date: 1988-08-18
Filing date: 1988-08-18
Publication date: 1990-02-27

Description

[Brief explanation of drawings]

第１図は本考案に係る油圧緩衝器の伸び切り状
態を示す縦断面図、第２図は同油圧緩衝器を四輪
自動車に適用した場合の油圧回路図、第３図はコ
ントロールの一例を示す回路図である。尚、図面中１はアウターシリンダ、４はインナ
ーシリンダ、９はフリーピストン、１０は固定ピ
ストン、２１は中空ロツド、３２はアジヤストロ
ツド、３５は油圧源、Ｓ１は気体室、Ｓ２，Ｓ３
，Ｓ４は油室である。 Fig. 1 is a vertical cross-sectional view showing the hydraulic shock absorber according to the present invention in a fully extended state, Fig. 2 is a hydraulic circuit diagram when the same hydraulic shock absorber is applied to a four-wheeled vehicle, and Fig. 3 is an example of the control. FIG. In the drawing, 1 is an outer cylinder, 4 is an inner cylinder, 9 is a free piston, 10 is a fixed piston, 21 is a hollow rod, 32 is an adjustable rod, 35 is a hydraulic power source, S1 is a gas chamber, S2, S3
, S4 is an oil chamber.

Claims

[Claims for Utility Model Registration] (1) An inner cylinder is slidably inserted into the outer cylinder from above, and a free piston is disposed within the inner cylinder to connect the upper gas chamber and the lower oil chamber. A hydraulic shock absorber for adjusting vehicle height, characterized in that the oil chamber is defined by a hydraulic pressure source provided outside the shock absorber, and the oil chamber is communicated with a hydraulic power source provided outside the shock absorber. (2) A fixed piston defining an upper oil chamber and a lower oil chamber is fixed to the lower end of the inner cylinder, and a lower end of a hollow rod is fixed to the bottom of the outer cylinder, and the upper end of the hollow rod is fixed to the bottom of the outer cylinder. The vehicle according to claim (1), characterized in that the fixed piston is penetrated and exposed to the upper oil chamber, thereby communicating the upper oil chamber and a hydraulic pressure source via an oil passage in a hollow rod. Hydraulic shock absorber for high adjustment.