JPH01178248U

JPH01178248U -

Info

Publication number: JPH01178248U
Application number: JP9677588U
Authority: JP
Priority date: 1988-07-21
Filing date: 1988-07-21
Publication date: 1989-12-20

Description

[Brief explanation of drawings]

第１図は本考案の液圧緩衝器の一実施例を示す
断面図、第２図は第１図のＡ―Ａ線断面図、第３
図は本考案の他の実施例を示す断面図である。１……シリンダ、２……ピストンロツド、３…
…ロツド中空部、３ａ……内周面、４，４Ａ……
モータ、９……アジヤスタ、９ａ……外周面、１
０……筒状部材、１０ｂ……外周面、１０ｄ……
内周面、１１，１２……環状シール部材、１９…
…ピストンボデイ、２４……上部液室、２５……
下部液室、１００……減衰力発生手段、１０１…
…ピストン組立体、１０２……バイパス通路。 Fig. 1 is a sectional view showing an embodiment of the hydraulic shock absorber of the present invention, Fig. 2 is a sectional view taken along the line A--A in Fig. 1, and Fig.
The figure is a sectional view showing another embodiment of the present invention. 1...Cylinder, 2...Piston rod, 3...
... Rod hollow part, 3a ... Inner peripheral surface, 4, 4A ...
Motor, 9...Adjuster, 9a...Outer peripheral surface, 1
0...Cylindrical member, 10b...Outer peripheral surface, 10d...
Inner peripheral surface, 11, 12... annular seal member, 19...
...Piston body, 24... Upper liquid chamber, 25...
Lower liquid chamber, 100... Damping force generating means, 101...
...Piston assembly, 102...Bypass passage.

Claims

[Scope of utility model registration request]

A cylinder filled with hydraulic fluid, a piston rod that is inserted from one end of the cylinder so as to be able to move forward and backward into the cylinder in a fluid-tight manner and has a hollow portion in the internal axial direction of the one end, and a cylindrical rod at one end of the piston rod. A piston body is disposed via a member and is slidably housed in the cylinder to define the inside of the cylinder into an upper liquid chamber and a lower liquid chamber; and a damping force generating means for generating a damping force by restricting the flow of working fluid between the piston assembly and the lower fluid chamber; and an adjuster rotatably housed in the cylindrical member located in the hollow portion of the rod, and adjusting the generated damping force by changing the cross-sectional area of the bypass passage according to the rotational position. and a motor that is housed in the hollow portion of the rod and rotates the adjuster;
Furthermore, a hydraulic shock absorber characterized in that annular seal members are arranged between the inner circumferential surface of the cylindrical member and the outer circumferential surface of the adjuster.