JPS6232245U

JPS6232245U -

Info

Publication number: JPS6232245U
Application number: JP12367585U
Authority: JP
Priority date: 1985-08-12
Filing date: 1985-08-12
Publication date: 1987-02-26
Anticipated expiration: 2000-08-12
Also published as: JPH0547882Y2

Description

[Brief explanation of the drawing]

添付の図は本考案による液圧式緩衝装置の一つ
の実施例を示す概略構成図である。１……シヨツクアブソーバ、２……ベースシエ
ル、３……アツパキヤツプ、３ａ……ロアキヤツ
プ、４……軸線、５……プレツシヤチユーブ、６
……リザーバ室、７……隔壁、８……弁室、９…
…連通孔、１０……ピストン、１１……上室、１
２……下室、１３……本体、１４……ロツクナツ
ト、１５……ピストンロツド、１６……オイルシ
ール、１７……通路、１８……絞り通路、１９…
…リード弁、２０……通路、２１……絞り通路、
２２……リード弁、２３……中空孔、２４……チ
ユーブ、２５……インナ通路、２６……アウタ通
路、２７……半径方向通路、２８……キヤツプ、
２９，３０，３１……通路、３２，３３……導管
、３４……電磁切換弁、３４ａ，３４ｂ……ソレ
ノイド、３４ｃ……絞り、３５……電磁流量制御
弁、３６……圧力制御弁、３７……オイルポンプ
、３８……導管、３９……リザーバタンク、４０
……リリーフ弁、４１……導管、４２……連通孔
、４３……導管、４４……電磁開閉弁、４４ａ…
…ソレノイド、４５……電子制御装置、４６……
前後方向加速度センサ、４７……横方向加速度セ
ンサ。 The accompanying drawing is a schematic diagram showing one embodiment of the hydraulic shock absorber according to the present invention. 1...Shock absorber, 2...Base shell, 3...Upper cap, 3a...Lower cap, 4...Axis line, 5...Pressure tube, 6
... Reservoir chamber, 7 ... Partition wall, 8 ... Valve chamber, 9 ...
...Communication hole, 10...Piston, 11...Upper chamber, 1
2... Lower chamber, 13... Main body, 14... Lock nut, 15... Piston rod, 16... Oil seal, 17... Passage, 18... Throttle passage, 19...
... Reed valve, 20 ... Passage, 21 ... Throttle passage,
22...Reed valve, 23...Hollow hole, 24...Tube, 25...Inner passage, 26...Outer passage, 27...Radial direction passage, 28...Cap,
29, 30, 31... passage, 32, 33... conduit, 34... electromagnetic switching valve, 34a, 34b... solenoid, 34c... throttle, 35... electromagnetic flow control valve, 36... pressure control valve, 37... Oil pump, 38... Conduit, 39... Reservoir tank, 40
... Relief valve, 41 ... Conduit, 42 ... Communication hole, 43 ... Conduit, 44 ... Solenoid on-off valve, 44a ...
...Solenoid, 45...Electronic control device, 46...
Front-back acceleration sensor, 47... Lateral acceleration sensor.

Claims

[Scope of utility model registration request]

a cylinder; a piston cooperating with the cylinder to define a first chamber and a second chamber for receiving a piston rod; and a second chamber provided on the piston and communicating with the first and second chambers. a passage means, a first restricting passage means, a first check valve that only allows liquid to flow from the second chamber to the first chamber via the first passage means; and a second passage. a third chamber connected in communication with the second chamber by means and a second restricting passage means, and only a flow of liquid from the third chamber to the second chamber via the second passage means; a second check valve that allows for a high-pressure hydraulic fluid; a hydraulic fluid source that supplies a high-pressure hydraulic fluid; and a hydraulic fluid drain;
a third throttle passage means for communicating and connecting the first chamber and the second chamber; a third passage means for communicating and connecting the working liquid supply source and the first and second chambers; a first return passage means that communicates with the first and second chambers and the working liquid drain; a second return passage means that communicates with the third chamber and the working liquid drain; A first valve device that selectively controls communication between the third passage means and the first return passage means, and a first valve device provided in the middle of the second return passage means to control communication between the second return passage means. a second valve device for selectively controlling said first valve device, said first valve device having a first position blocking communication between said third passage means and said first return passage means; a second position that communicates with the source and the first chamber and communicates with the second chamber and the working liquid drain; and a second position that communicates with the working liquid source and the second chamber. and a third position in which the first chamber and the working liquid drain are connected in communication, and the second valve device is configured to switch when the first valve device is in the second position. The hydraulic shock absorber is configured to be open at certain times, and the third throttle passage means is configured to communicate only when the first valve device is in the first position.