JPS59137888U

JPS59137888U - Hydraulic shock absorber damping force adjustment device

Info

Publication number: JPS59137888U
Application number: JP3245383U
Authority: JP
Inventors: 敏文山本
Original assignee: 株式会社昭和製作所
Priority date: 1983-03-07
Filing date: 1983-03-07
Publication date: 1984-09-14
Also published as: JPH0137350Y2

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]

第１図は従来の自動二輪車に使用される油圧緩衝器′の
減衰力調整装置を示す要部縦断面図、第２図はこの考案
の減衰力調整装置を備えた油圧緩衝器を示す縦ｉ面図、
第３歯はその減衰力調整装置を示す要部縦断面図、第４
図はその筒体バルブの作動状態を示す要部拡大縦断面図
である。１１・・・油圧緩衝器、１４・・・シートパイプ、１６
・・・減衰力発生機構、１９・・・油孔、２０・・・筒
体バルブ、２１・・・コイルバネ、２２・・・調整ロッ
ド、２６・・・内週段付面、２７・・・バルブ面。Fig. 1 is a vertical cross-sectional view of a main part showing a damping force adjustment device for a conventional hydraulic shock absorber used in a motorcycle, and Fig. 2 is a vertical cross-sectional view showing a hydraulic shock absorber equipped with the damping force adjustment device of this invention. side view,
The third tooth is a vertical sectional view of the main part showing the damping force adjustment device, and the fourth tooth is
The figure is an enlarged longitudinal sectional view of the main part showing the operating state of the cylindrical valve. 11... Hydraulic shock absorber, 14... Sheet pipe, 16
... Damping force generation mechanism, 19 ... Oil hole, 20 ... Cylindrical valve, 21 ... Coil spring, 22 ... Adjustment rod, 26 ... Inner stepped surface, 27 ... valve surface.

Claims

[Scope of utility model registration request]

Hydraulic pressure is sealed inside the bottom case based on the extension process of the fork pipe inserted into the bottom case, and the oil flows through the oil hole of the seat pipe and the flow path of the damping force adjustment rod to generate damping force. In the damping force adjustment device for a shock absorber, a cylindrical valve that freely opens and closes and corresponds to the oil hole of the pipe is fitted into the sheet pipe so as to be slidable in the axial direction of the pipe, and the inner part of the cylindrical valve is The end surface is brought into contact with the inner stepped surface of the seat pipe, and the outer end surface is biased toward the inner end surface of the damping force adjusting rod to create a gap between the inner end surface and the inner stepped surface of the cylindrical valve. A damping force adjustment device for a hydraulic shock absorber, characterized in that a damping force adjustment device is formed on a valve surface for adjusting damping force.