JPS5897333U

JPS5897333U - Hydraulic shock absorber damping force adjustment mechanism

Info

Publication number: JPS5897333U
Application number: JP19584081U
Authority: JP
Inventors: 伊藤　日出国
Original assignee: 株式会社昭和製作所
Priority date: 1981-12-24
Filing date: 1981-12-24
Publication date: 1983-07-02
Also published as: JPS6221165Y2

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

図面は本考案の一実施例を示し、第１図は本考案に係る
調整機構を装呻して成る油圧緩衝器の縦断側面図、第２
図はチェックバルブの平面図、第３図は第１図３−３線
断面図、第４図及び第５図は減衰力特性図である。尚図面中１はシリンダ、２は中空ロッド、３はピストン
、？、　　９．　１０は油路、８．　１１．　１５はチ
ェックバルブ、１３はバルブケース、１４はバルブシー
ト、１６はバルブスプリング、１７はブツシュロッド、
１８はアジャストスプリング、２１は取付部材、２４は
カム軸、２４ａはカム、２５はアジャスタ、Ｓ□は上部
作動室、Ｓ２は下部作動室である。The drawings show one embodiment of the present invention, and FIG. 1 is a longitudinal cross-sectional side view of a hydraulic shock absorber equipped with an adjustment mechanism according to the present invention, and FIG.
The figure is a plan view of the check valve, FIG. 3 is a sectional view taken along line 3-3 in FIG. 1, and FIGS. 4 and 5 are damping force characteristic diagrams. In the drawing, 1 is a cylinder, 2 is a hollow rod, and 3 is a piston. , 9. 10 is an oil passage; 8. 11. 15 is a check valve, 13 is a valve case, 14 is a valve seat, 16 is a valve spring, 17 is a bushing rod,
18 is an adjustment spring, 21 is a mounting member, 24 is a camshaft, 24a is a cam, 25 is an adjuster, S□ is an upper working chamber, and S2 is a lower working chamber.

Claims

[Scope of utility model registration request]

'A piston is slidably fitted into the cylinder, and the other end of the hollow rod with the piston fixed to one end extends out of the cylinder, and a mounting member is tied to the end. In a hydraulic shock absorber, an oil hole communicating with an oil passage in the piston is formed in the peripheral wall of the rod, and the inside of the rod is configured as an oil passage, and a check valve pressed by a spring is disposed in the oil passage in the rod, A bushing rod is slidably fitted into the hollow rod, an adjustment spring is stretched between the upper end of the rod and the check valve, and the mounting member has a vertical recess in the extending direction of the hollow rod. A lateral recess is provided perpendicularly to the vertical recess, and a cam shaft having a threaded base and a cam in the center is rotatably screwed into the lateral recess. A damping force adjustment mechanism for a hydraulic shock absorber, characterized in that the end of the hollow rod is abutted and engaged with the cam of the camshaft.