JPH0349440U

JPH0349440U -

Info

Publication number: JPH0349440U
Application number: JP10992089U
Authority: JP
Priority date: 1989-09-20
Filing date: 1989-09-20
Publication date: 1991-05-14
Anticipated expiration: 2004-09-20
Also published as: JP2525265Y2

Description

[Brief explanation of drawings]

第１図は本考案第１実施例の液圧緩衝器におけ
るピストンバルブ構造の要部を示す断面図、第２
図は第１実施例構造のシート形成部材を示す平面
図、第３図は第１実施例の第１流路形成板材を示
す平面図、第４図は第１実施例の第２流路形成板
材を示す平面図、第５図は第１実施例の第３流路
形成板材を示す平面図、第６図は第２実施例の液
圧緩衝器におけるピストンバルブ構造の要部を示
す断面図、第７図は同実施例のシート形成部材の
を示す平面図、第８図は同実施例の第１流路形成
板材を示す平面図、第９図は同実施例の第２流路
形成板材を示す平面図である。Ａ……上部室、Ｂ……下部室、Ｃ……圧側流路
、Ｄ……伸縮流路、１……シリンダ、２……ピス
トン、７……圧側減衰バルブ、９……伸側減衰バ
ルブ、２０……圧側シート形成部材、２０ｄ……
内側シート面、２０ｅ……外側シート面、２０ｆ
……連通孔（連通穴）、２１……第１流路形成板
材、２１ａ……小径の流路構成穴、２１ｂ……大
径の流路構成穴、２２……第２流路形成板材、２
２ａ……流路構成穴、２３……第２流路形成板材
、２３ａ……流路構成穴、４０……シート形成部
材、４０ａ……開口窓（連通穴）、４１……第１
流路形成板材、４１ａ……流路構成穴、４２……
第２流路形成板材、４２ａ……流路構成穴。 Fig. 1 is a sectional view showing the main parts of the piston valve structure in the hydraulic shock absorber according to the first embodiment of the present invention;
The figure is a plan view showing the sheet forming member of the structure of the first embodiment, FIG. 3 is a plan view showing the first channel forming plate material of the first embodiment, and FIG. 4 is the plan view showing the second channel forming member of the first embodiment. FIG. 5 is a plan view showing the third flow path forming plate material of the first embodiment; FIG. 6 is a sectional view showing the main parts of the piston valve structure in the hydraulic shock absorber of the second embodiment. , FIG. 7 is a plan view showing the sheet forming member of the same example, FIG. 8 is a plan view showing the first flow path forming plate material of the same example, and FIG. 9 is a plan view showing the second flow path forming member of the same example. It is a top view showing a plate material. A...Upper chamber, B...Lower chamber, C...Compression side flow path, D...Extension flow path, 1...Cylinder, 2...Piston, 7...Compression side damping valve, 9...Rebound side damping valve , 20... Compression side sheet forming member, 20d...
Inner seat surface, 20e...Outer seat surface, 20f
...Communication hole (communication hole), 21...First flow path forming plate material, 21a...Small diameter flow path forming hole, 21b...Large diameter flow path forming hole, 22...Second flow path forming plate material, 2
2a... Channel forming hole, 23... Second channel forming plate material, 23a... Channel forming hole, 40... Sheet forming member, 40a... Opening window (communication hole), 41... First
Channel forming plate material, 41a... Channel forming hole, 42...
Second channel forming plate material, 42a...channel forming holes.

Claims

[Claims for Utility Model Registration] 1. A piston that defines two chambers in a cylinder filled with fluid, a flow path forming member bored in a flow path forming hole, a seat surface and a damping valve that come into contact with each other. A piston valve structure in a hydraulic shock absorber, characterized in that the piston valve structure is formed by overlapping a seat forming member provided with a communication hole that communicates with the flow path inside the seat surface. 2. Claim 1, wherein the flow path forming plate material is formed of a plurality of types of members having different outer diameters, and a piston ring is fitted into the uneven portion formed on the outer periphery of the flow path forming plate material. Piston valve structure in the described hydraulic shock absorber.