JPH0483904U

JPH0483904U -

Info

Publication number: JPH0483904U
Application number: JP12839190U
Authority: JP
Priority date: 1990-11-30
Filing date: 1990-11-30
Publication date: 1992-07-21

Description

[Brief explanation of the drawing]

第１図は本考案の第１の実施例を示すアキユム
レータの縦断面図、第２図は第２の実施例を示す
第１図と同様の縦断面図、第３図は第３の実施例
を示す第１図と同様の縦断面図、第４図は従来技
術を示すサスペンシヨン装置の縦断面図である。２……内筒（チユーブ）、４……ロツドガイド
、６……ピストン、７……ピストンロツド、１６
……減衰力発生機構、２１，３１，４１……アキ
ユムレータ、２２……ケーシング、２２Ａ……口
部（油口）、２３……ピストンストツパ、２４…
…ボトムキヤツプ、２５，２９，４３……Ｏリン
グ、２７，４２……フリーピストン、３０……金
属ベローズ、３２……弁機構、４４……コイルス
プリング、Ａ，Ｂ……油室、Ｅ……蓄油室、Ｆ_１，Ｆ_２，Ｇ……ガス室。 Fig. 1 is a longitudinal sectional view of an accumulator showing a first embodiment of the present invention, Fig. 2 is a longitudinal sectional view similar to Fig. 1 showing a second embodiment, and Fig. 3 is a longitudinal sectional view of an accumulator showing a second embodiment. FIG. 4 is a longitudinal sectional view of a suspension device showing the prior art. 2... Inner cylinder (tube), 4... Rod guide, 6... Piston, 7... Piston rod, 16
... Damping force generation mechanism, 21, 31, 41 ... Accumulator, 22 ... Casing, 22A ... Mouth (oil port), 23 ... Piston stopper, 24 ...
...Bottom cap, 25, 29, 43...O ring, 27, 42...Free piston, 30...Metal bellows, 32...Valve mechanism, 44...Coil spring, A, B...Oil chamber, E... …Oil storage room, F ₁ , F ₂ , G... gas chamber.

Claims

[Scope of utility model registration request]

a tube with one end closed and a rod guide provided on the other end; a piston slidably inserted into the tube and defining the inside of the tube into an oil chamber on one side and an oil chamber on the other side; a piston rod having one end fixed to the piston and the other end protruding outside the tube via the rod guide; an accumulator communicating with one of the oil chambers; and a piston rod provided between the accumulator and the one oil chamber. , a suspension device comprising a damping force generation mechanism that generates a damping force by exerting a throttling action on the circulating oil through expansion and contraction of the piston rod, wherein one axial side of the accumulator communicates with the one oil chamber. a cylindrical sealed container that serves as an oil port and is closed on the other side; a piston stopper formed in the middle of the inner peripheral side of the sealed container in the axial direction; and a piston stopper that contacts the piston stopper on the other side of the sealed container. a free piston provided to be slidable within a range of , a first urging means provided in the gas chamber to urge the metal bellows toward the oil storage chamber with a relatively weak load; and a first urging means provided in the gas chamber to urge the free piston toward the piston stopper with a relatively strong force. A suspension device comprising a second urging means provided in the gas chamber for urging by a load.