JPS59163245U

JPS59163245U - hydraulic shock absorber

Info

Publication number: JPS59163245U
Application number: JP5828883U
Authority: JP
Inventors: 健中村
Original assignee: トキコ株式会社
Priority date: 1983-04-19
Filing date: 1983-04-19
Publication date: 1984-11-01

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図は本考案に係る油圧緩衝器を鉄道車両の左右動緩
衝器として取付けた状態を示す説明図、第２図は油圧緩
衝器の縦断面図、第３図は第２図の要部拡大図、第４図
は減衰力特性線図をそれぞれ示す。１・・・車体、２・・・車台、５・・・空気ばねミ８・
・・油圧Ｗｉ器、１７−・・ピストン、１８・・・ピス
トンロッド、１９・・・通路、２４・・・減衰力発生機
構、２５・・・絞り通路、２６・・・開閉弁、３０・・
・弁体、３１Ａ・・・弁座、３２・・・ばね受、３３・
・・ばね、３９・・・開弁圧設定部材、４１・・・可動
隔壁、４３・・・圧力室、４４川押動杆、４７・・・配
管、Ａ、　Ｂ・・・油室、Ｃ・・・油溜室。Fig. 1 is an explanatory diagram showing the hydraulic shock absorber according to the present invention installed as a lateral movement shock absorber on a railway vehicle, Fig. 2 is a longitudinal cross-sectional view of the hydraulic shock absorber, and Fig. 3 is the main part of Fig. 2. The enlarged view and FIG. 4 respectively show damping force characteristic diagrams. 1... Vehicle body, 2... Chassis, 5... Air spring 8.
... Hydraulic Wi device, 17-... Piston, 18... Piston rod, 19... Passage, 24... Damping force generation mechanism, 25... Throttle passage, 26... Opening/closing valve, 30...・
・Valve body, 31A... Valve seat, 32... Spring holder, 33.
...Spring, 39...Valve opening pressure setting member, 41...Movable bulkhead, 43...Pressure chamber, 44 River push rod, 47...Piping, A, B...Oil chamber, C ...Oil storage room.

Claims

[Scope of utility model registration request]

An inner cylinder and an outer cylinder form a cylindrical body, and a piston is inserted into the inner cylinder of the cylindrical body so as to be able to reciprocate. connect with the end,
An oil reservoir chamber is formed between the inner cylinder and the outer cylinder, and two oil chambers defined by the piston are formed in the inner cylinder, and one of the oil chambers is formed in the piston. A passage is formed that allows oil to flow from the oil chamber to the other oil chamber, and between the other oil chamber and the oil reservoir chamber, there is a normally open throttle passage and a flow passage that is opened and closed by an on-off valve. A damping force generating mechanism having a damping force generating mechanism is installed, and the opening/closing valve is provided with a valve opening pressure setting member consisting of a spring that sets the opening pressure of the valve, and a movable partition that makes the spring force of the spring variable. A hydraulic shock absorber, characterized in that the movable partition wall is configured to be changed by external fluid pressure.