JPS62179444U

JPS62179444U -

Info

Publication number: JPS62179444U
Application number: JP6759486U
Authority: JP
Priority date: 1986-05-02
Filing date: 1986-05-02
Publication date: 1987-11-14

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例に係る減衰力発生装
置の縦断面図、第２図、第３図は本考案の他の実
施例に係る減衰力発生装置のバルブ部の縦断面図
、第４図は第１図のバルブ部の拡大断面図、第５
図は本考案の他の実施例に係るバルブ部の拡大断
面図、第６図は従来の油圧緩衝器の一部切欠き断
面図、第７図は従来の減衰力発生装置の縦断面図
である。１……シリンダ、３，９……油室、５……タン
ク、１０……通路、１７……バルブケース、１８
……伸・圧共用の通路、１９……圧板バルブ、２
０……伸板バルブ。 FIG. 1 is a longitudinal cross-sectional view of a damping force generating device according to an embodiment of the present invention, FIGS. 2 and 3 are longitudinal cross-sectional views of a valve portion of a damping force generating device according to other embodiments of the present invention, Figure 4 is an enlarged sectional view of the valve part in Figure 1;
The figure is an enlarged sectional view of a valve part according to another embodiment of the present invention, FIG. 6 is a partially cutaway sectional view of a conventional hydraulic shock absorber, and FIG. 7 is a vertical sectional view of a conventional damping force generator. be. 1... Cylinder, 3, 9... Oil chamber, 5... Tank, 10... Passage, 17... Valve case, 18
...Extension/compression common passage, 19...Pressure plate valve, 2
0...Stretching plate valve.

Claims

[Scope of Claim for Utility Model Registration] (1) In a hydraulic shock absorber in which a damping force generating device is provided in the middle of a passage connecting an oil chamber in a cylinder and an oil chamber in a tank, the damping force generating device is connected to a valve case and a valve case. A common passageway for expansion and compression,
A damping force generating device is installed in a hydraulic shock absorber, which consists of an expansion plate valve and a pressure plate valve that are installed in the middle of the passage so that they can be opened and closed, and the expansion plate valve and the pressure plate valve are overlapped at their respective ends. (2) The damping force generating device for a hydraulic shock absorber according to claim 1, wherein the outer end of the pressure plate valve is superimposed on the lower side of the inner end of the telescopic valve. (3) The damping force generating device for a hydraulic shock absorber according to claim 1, wherein the inner end of the pressure plate valve is superimposed on the lower side of the outer end of the telescopic valve. (4) The damping force generating device for a hydraulic shock absorber according to claim 1, wherein a stopper for regulating the amount of movement of the expansion valve is formed at the downstream end of the passage. (5) The damping force generating device for a hydraulic shock absorber according to claim 1, wherein the pressure plate valve is formed of a thin plate material that opens even at low pressure. (6) The damping force generating device for a hydraulic shock absorber according to claim 1, wherein a stopper is provided facing the pressure plate valve at an arbitrary interval to regulate the amount of movement of the pressure plate valve. (7) The damping force generating device for a hydraulic shock absorber according to claim 6, wherein the thickness of the expanding plate valve is greater than the distance between the plate valve and the stopper portion.