JPH0336538U

JPH0336538U -

Info

Publication number: JPH0336538U
Application number: JP9836389U
Authority: JP
Priority date: 1989-08-23
Filing date: 1989-08-23
Publication date: 1991-04-09
Anticipated expiration: 2004-08-23
Also published as: JP2539261Y2

Description

[Brief explanation of the drawing]

第１図はこの考案の一実施例に係る油圧緩衝器
を半截状態で示す部分縦断面図、第２図Ａ、第２
図Ｂ及び第２図Ｃはそれぞれ減衰バルブを構成す
る各リーフバルブを半截状態で示す縮尺平面図、
第３図Ａ及び第３図Ｂはそれぞれ環座を半截状態
で示す縮尺平面図、第４図は従来例に係る油圧緩
衝器を第１図と同様に示す部分縦断面図である。符号の説明、１……シリンダ、２……ピストン
ロツド、３……ピストン部、４……減衰バルブ、
４０……環状リーフバルブ、４１，４２……切欠
リーフバルブ、Ａ……ロツド側油室、Ｂ……ピス
トン側油室、Ｓ……隙間。 FIG. 1 is a partial vertical cross-sectional view showing a hydraulic shock absorber according to an embodiment of this invention in a half-cut state;
Figures B and 2C are scaled plan views showing each leaf valve constituting the damping valve in a half-cut state;
3A and 3B are scaled plan views showing the ring seat in a half-cut state, and FIG. 4 is a partial vertical sectional view showing a conventional hydraulic shock absorber in the same way as FIG. 1. Explanation of symbols, 1... Cylinder, 2... Piston rod, 3... Piston part, 4... Damping valve,
40... Annular leaf valve, 41, 42... Notched leaf valve, A... Rod side oil chamber, B... Piston side oil chamber, S... Gap.

Claims

[Scope of utility model registration request]

Consisting of a plurality of annular leaf valves and a plurality of notched leaf valves arranged between the annular leaf valves, in the medium to high piston speed range, the inner or outer circumferential end of the valve is deflected to achieve a predetermined elongation. In addition to generating a damping force on the side or pressure side, in the very low piston speed range, the inner or outer end of the annular leaf valve is deflected by the flow of hydraulic oil through the gap formed by the notched leaf valve. A damping valve for a hydraulic shock absorber, characterized in that the damping valve is formed to generate a damping force on the expansion side or the compression side.