JPH0250536U

JPH0250536U -

Info

Publication number: JPH0250536U
Application number: JP12984788U
Authority: JP
Priority date: 1988-10-03
Filing date: 1988-10-03
Publication date: 1990-04-09

Description

[Brief explanation of drawings]

第１図は本考案の油圧緩衝器の要部を示す側断
面図、第２図は第１図の油圧緩衝器の―線矢
視断面図、第３図は第１図の油圧緩衝器に内蔵さ
れたピストンボデーの要部を示す部分断面図、第
４図は第３図のピストンボデーのオリフイスプレ
ートが開いた状態を示す部分断面図、第５図は本
考案の他の実施例を示す要部断面図、第６図は第
５図の―線矢視断面図、第７図は従来の油圧
緩衝器を示す側断面図である。２２……ピストンボデー、２３……シリンダ、
２４……第１ポート、２８……第２ポート、３０
……オリフイスプレート、３２……カラー、３４
……スプリング、３５……スプリングガイド、３
７……凹溝、４０……空間。 Figure 1 is a side cross-sectional view showing the main parts of the hydraulic shock absorber of the present invention, Figure 2 is a cross-sectional view of the hydraulic shock absorber of Figure 1 taken along the line -, and Figure 3 is a cross-sectional view of the hydraulic shock absorber of Figure 1. FIG. 4 is a partial sectional view showing the main parts of the built-in piston body, FIG. 4 is a partial sectional view showing the orifice plate of the piston body in FIG. 3 in an open state, and FIG. 5 is a partial sectional view showing another embodiment of the present invention. 6 is a sectional view taken along the line -- in FIG. 5, and FIG. 7 is a side sectional view showing a conventional hydraulic shock absorber. 22... Piston body, 23... Cylinder,
24...First port, 28...Second port, 30
...Orifice plate, 32...Color, 34
... Spring, 35 ... Spring guide, 3
7...concave groove, 40...space.

Claims

[Scope of utility model registration request]

A piston body is inserted into the cylinder, and the piston body is provided with an orifice plate that opens and closes one side of a port formed in this body, a collar that presses and fixes this orifice plate to the piston body, and an outer periphery of this collar. a spring attached to press the orifice plate toward the port; and a spring guide interposed between the orifice plate and the spring and between the collar and the spring and guided by the collar to guide the spring. The hydraulic shock absorber includes an outer circumferential surface of the collar or a sliding surface of the spring guide with the collar,
A hydraulic shock absorber characterized in that a concave groove is provided for reducing the contact area between the collar and the spring guide and for opening the space formed by the orifice plate, the collar and the spring guide into the cylinder.