JPH0367732U

JPH0367732U -

Info

Publication number: JPH0367732U
Application number: JP12474889U
Authority: JP
Priority date: 1989-10-25
Filing date: 1989-10-25
Publication date: 1991-07-02

Description

[Brief explanation of drawings]

第１図は本考案に係るバルブ機構を備えた緩衝
器のピストン周りの断面図、第２図および第３図
は同バルブ機構のチエツクバルブの動作を示す要
部拡大断面図、第４図は同バルブ機構のチエツク
バルブの他の異なる例を示す断面図、第５図は本
考案の別実施例を示す緩衝器のピストン周りの断
面図、第６図は本考案の更に別実施例を示す緩衝
器のピストン周りの断面図、第７図は従来のバル
ブ機構の断面図である。尚、図面中、１はシリンダ、２はピストンロツ
ド、３はピストン、４は圧縮側油路、５は伸び側
油路、８は圧縮側バルブ機構、９は伸び側バルブ
機構、１３，２１，２２はバイパス油路、１４，
２３，２６はオリフイス、１６，１７，１８，２
５，２８……弾性リングである。 Fig. 1 is a cross-sectional view around the piston of a shock absorber equipped with a valve mechanism according to the present invention, Figs. 2 and 3 are enlarged cross-sectional views of essential parts showing the operation of the check valve of the same valve mechanism, and Fig. 4 is a A sectional view showing another different example of the check valve of the same valve mechanism, FIG. 5 is a sectional view around the piston of a shock absorber showing another embodiment of the invention, and FIG. 6 shows still another embodiment of the invention. A sectional view of the area around the piston of the shock absorber, and FIG. 7 is a sectional view of a conventional valve mechanism. In addition, in the drawing, 1 is a cylinder, 2 is a piston rod, 3 is a piston, 4 is a compression side oil passage, 5 is an extension side oil passage, 8 is a compression side valve mechanism, 9 is an extension side valve mechanism, 13, 21, 22 is a bypass oil passage, 14,
23, 26 are orifices, 16, 17, 18, 2
5, 28... Elastic ring.

Claims

[Scope of utility model registration request]

A piston is slidably fitted into a cylinder to define two oil chambers, an oil passage is formed in the piston to communicate the two oil chambers, and a valve mechanism is provided to open and close this oil passage. In the provided buffer, the above 2
A valve mechanism for a shock absorber, characterized in that a bypass oil passage communicating two oil chambers is provided, and a check valve made of an elastic ring is provided to open and close the bypass oil passage.