JPH0473633U

JPH0473633U -

Info

Publication number: JPH0473633U
Application number: JP11727290U
Authority: JP
Priority date: 1990-11-08
Filing date: 1990-11-08
Publication date: 1992-06-29

Description

[Brief explanation of drawings]

図面第１図はこの考案の実施例を示す断面図、
第２図は従来の緩衝器の断面図である。１５……アウターシリンダ、１６……小孔、１
７……インナーシリンダ、１８……油溜室、１９
……ピストン、２２……ロツド側室、２３……ボ
トム側室、２４……スプリング、２５……環状溝
、２７……通路、２９……Ｏリング、δ……すき
間。 Figure 1 is a sectional view showing an embodiment of this invention;
FIG. 2 is a sectional view of a conventional shock absorber. 15...Outer cylinder, 16...Small hole, 1
7...Inner cylinder, 18...Oil sump chamber, 19
... Piston, 22 ... Rod side chamber, 23 ... Bottom side chamber, 24 ... Spring, 25 ... Annular groove, 27 ... Passage, 29 ... O-ring, δ ... Gap.

Claims

[Scope of utility model registration request]

An inner cylinder with a small hole formed inside the outer cylinder is installed to partition an oil reservoir chamber between the inner cylinder and the outer cylinder, while a piston is slidably installed inside the inner cylinder, and one side of the piston is installed. In a shock absorber configured to have a rod side chamber on one side and a bottom side chamber on the other side, and to generate a damping force through the small hole, an annular groove is formed on the outer periphery of the piston, and an O-ring is inserted into the annular groove. In addition to installing this O-ring,
Of both chambers, it is configured to be able to move in the opposite direction to the movement direction of the piston by being pushed by the pressure of the high-pressure side chamber, and when this O-ring moves in either direction, the rod side chamber and the piston side chamber are communicated. A shock absorber configured to cut off communication between both chambers when moved to either the other.