JPH0474753U

JPH0474753U -

Info

Publication number: JPH0474753U
Application number: JP11420390U
Authority: JP
Priority date: 1990-10-31
Filing date: 1990-10-31
Publication date: 1992-06-30
Anticipated expiration: 2005-10-31
Also published as: JP2562422Y2

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例に係る油圧緩衝器の
部分断面図、第２図はガイドの側面図、第３図は
オリフイス付きリーフバルブの側面図、第４図は
他の実施例に係る油圧緩衝器の部分断面図、第５
図はガイド部の横断側面図、第６図及び第７図は
他の実施例に係る油圧緩衝器の部分断面図、第８
図は第７図のオリフイス付きリーフバルブの側面
図、第９図は第７図のスペーサの側面図、第１０
図は他の実施例に係る油圧緩衝器の部分断面図、
第１１図は従来の油圧緩衝器の部分断面図である
。符号の説明、１……シリンダ、２……ピストン
ロツド、７……微低速用リーフバルブ、８……オ
リフイス付きリーフバルブ、９，９ａ，９Ｂ……
ガイド、９Ａ……隙間、１０……スプリングシー
ト、１１……ピストン、１１Ａ，１１Ｂ……ポー
ト、１１Ｅ……シート面、１２……スプリング、
Ａ，Ｂ……油室、Ｖ……リーフバルブ。 Fig. 1 is a partial sectional view of a hydraulic shock absorber according to an embodiment of the present invention, Fig. 2 is a side view of a guide, Fig. 3 is a side view of a leaf valve with an orifice, and Fig. 4 is a partial sectional view of a hydraulic shock absorber according to an embodiment of the present invention. Partial sectional view of the hydraulic shock absorber, No. 5
The figure is a cross-sectional side view of the guide part, FIGS. 6 and 7 are partial sectional views of a hydraulic shock absorber according to another embodiment, and FIG.
The figure is a side view of the leaf valve with orifice shown in Fig. 7, Fig. 9 is a side view of the spacer shown in Fig. 7, and Fig. 10 is a side view of the leaf valve with orifice shown in Fig. 7.
The figure is a partial sectional view of a hydraulic shock absorber according to another embodiment,
FIG. 11 is a partial sectional view of a conventional hydraulic shock absorber. Explanation of symbols, 1...Cylinder, 2...Piston rod, 7...Leaf valve for very low speed, 8...Leaf valve with orifice, 9, 9a, 9B...
Guide, 9A...Gap, 10...Spring seat, 11...Piston, 11A, 11B...Port, 11E...Seat surface, 12...Spring,
A, B...Oil chamber, V...Leaf valve.

Claims

[Claims for Utility Model Registration] (1) A piston rod is movably inserted into the cylinder via a piston, the piston partitions two oil chambers within the cylinder, and the piston has a port that communicates the two oil chambers. In a hydraulic shock absorber, the leaf valve has a leaf valve arranged at the outlet end of the port so as to be openable and closable, and the leaf valve is a very low speed leaf valve and a leaf valve with an orifice superimposed on the bottom surface of the very low speed leaf valve. The outer periphery of the leaf valve is held between the lower end seat surface of the piston and the spring seat biased by a spring, and the inner periphery of the leaf valve forms an arbitrary gap with the outer periphery of the guide provided inside the piston. A damping valve for a hydraulic shock absorber, characterized in that the damping valve is supported so as to be flexible. (2) A piston rod is movably inserted into the cylinder via a piston, the piston partitions two oil chambers in the cylinder, a port is formed in the piston to communicate the two oil chambers, and the outlet end of the port is In a hydraulic shock absorber in which a leaf valve is arranged to freely open and close, the leaf valve is composed of a very low speed leaf valve and a leaf valve with an orifice stacked on the top surface of the very low speed leaf valve, and the outer periphery of the leaf valve is The inner periphery of the leaf valve with an orifice is fixed, and the inner periphery of the leaf valve for very low speeds is attached to the outer periphery of a guide provided inside the piston. A damping valve for a hydraulic shock absorber, characterized in that it is supported flexibly while forming an arbitrary gap.