JPS5911932U

JPS5911932U - Variable damping force hydraulic shock absorber

Info

Publication number: JPS5911932U
Application number: JP10659882U
Authority: JP
Inventors: 下倉　昭博
Original assignee: トキコ株式会社
Priority date: 1982-07-14
Filing date: 1982-07-14
Publication date: 1984-01-25

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 drawings]

図面はこの考案の一実施例を示し、第１図は縦断面図、
第２図は第２の減衰力発生バルブ部分の拡大縦断面図、
第３図は第１図の■−■線に沿うシャッタ部分の断面図
、第４図は減衰力の特性曲線を示す図である。１・・・シリンダ、４・・・ピストンロッド、５・・・
ピストン、１３・・・第１の減衰力発生バルブ、２５・
・・第２の減衰力発生バルブ、２７・・・シャッター、
２９・・・操作ロッド、Ｒ□・・・シリンダ上室、Ｒ２
・・・シリンダ下室、Ｌｌ・・・第１の油路、Ｌ２・・
・第２の油路。The drawings show an embodiment of this invention, and FIG. 1 is a longitudinal sectional view;
Fig. 2 is an enlarged vertical cross-sectional view of the second damping force generating valve part;
FIG. 3 is a sectional view of the shutter portion taken along line 1--2 in FIG. 1, and FIG. 4 is a diagram showing a characteristic curve of damping force. 1...Cylinder, 4...Piston rod, 5...
Piston, 13... first damping force generating valve, 25.
...Second damping force generating valve, 27...Shutter,
29...Operating rod, R□...Cylinder upper chamber, R2
... Cylinder lower chamber, Ll... First oil passage, L2...
・Second oil route.

Claims

[Scope of utility model registration request]

Two oil passages communicating between one cylinder chamber and the other cylinder chamber are provided in parallel on the piston and piston rod side, and one of the two oil passages is provided with a relatively large flow resistance to the oil passing through the oil passage. The other of the two oil passages is provided with a damping force generation valve with low characteristics that imparts a relatively small flow resistance to the oil passing through the oil passage, and the piston A variable damping force hydraulic shock absorber, characterized in that the rod is provided with an operating mechanism that can open and close the other oil passage from the outside.