JPS6067214U

JPS6067214U - Vehicle height adjustment device

Info

Publication number: JPS6067214U
Application number: JP16035683U
Authority: JP
Inventors: 将石川
Original assignee: トヨタ自動車株式会社
Priority date: 1983-10-17
Filing date: 1983-10-17
Publication date: 1985-05-13

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図は本考案による車輛用車高調整装置の一つの実施
例を示す概略構成図、第２図は第１図に示された電磁開
閉弁等の作動を制御する制御装置を示す解図、第′３図
は第１図に示された圧力センサの一つの具体的実施例を
示す断面図である。１・・・リザーブタンク、２〜５・・・アクチュエータ
、６・・・シリンダ、７・・・ピストン、８・・・ダイ
ヤフラム、９・・・シリンダ室、１０・・・液体室、１
１・・・気体室、１２・・・流体加圧タンク、１３・・
・導管、１４・・・フローデイバイダ、１４ａｔ　　１
４ｂ・・・絞り、１５．１６＝−導管、１７・・・フロ
ーデイバイダ、１７ａ、１７ｂ・・・絞り、１８〜２２
・・！導管、２３・・・フローデイバイダ、２３ａ、２
３ｂ・・・絞り、２４゜２５・・・導管、２６・・・ポ
ンプ、２７・・・復帰導管、２８・・・流量制御弁、２
９・・・ＩＪ　ＩＪ−フ弁、３０・・・フロープライオ
リティ弁、３１・・・導管、３２・・・他の流体圧装置
、３３・・・圧力制御弁、３４・・・逆止弁、３５・・
・復帰導管、３６・・・接続部、３７・・・導管、３８
・・・アキュムレータ、３９・・・ダイヤフラム、４０
・・・液体室、４１・・・気体室、４２・・・圧力セン
サ、４３〜４５・・・電磁切換弁、４３ａ〜４５ａ・・
・ソレノイド、４３ｂ〜４５ｂ・・・スイッチ、４６〜
４８・・・復帰導管、４９〜５２・・・絞り付き逆止弁
装置、５３〜５６・・・絞り、５７〜６０・・・バイパ
ス通路、６１〜６４・・・逆止弁、６５・・・電磁開閉
弁、６５ａ・・・ソレノイド、６６・・・制御装置、６
７・・・電子制御装置、６８・・・前輪車高センサ、６
９・・・後輪車高センサ、７０・・・インジケータ、７
２・・・車高調整スイッチ、７３・・・ハウジング、７
４．７５・・・通路、７６・・・弁室、７７・・・弁要
素、？７ａ・・・ロッド、７８゜７９・・・室、８０・
・・圧縮コイルばね、８１・・・孔、８２・・・スイッ
チ、８３，８４・・・板ばね、８５，８６　　　　　゛
・−・接点、８７・・・導線、８８・・・電源、８９・
・・導線。Fig. 1 is a schematic configuration diagram showing one embodiment of the vehicle height adjustment device according to the present invention, and Fig. 2 is an illustration showing a control device that controls the operation of the electromagnetic on-off valve etc. shown in Fig. 1. , FIG. 3 is a sectional view showing one specific embodiment of the pressure sensor shown in FIG. 1. DESCRIPTION OF SYMBOLS 1... Reserve tank, 2-5... Actuator, 6... Cylinder, 7... Piston, 8... Diaphragm, 9... Cylinder chamber, 10... Liquid chamber, 1
1... Gas chamber, 12... Fluid pressurized tank, 13...
・Conduit, 14...Flow divider, 14at 1
4b...Aperture, 15.16=-conduit, 17...Flow divider, 17a, 17b...Aperture, 18-22
...! Conduit, 23...Flow divider, 23a, 2
3b... Throttle, 24° 25... Conduit, 26... Pump, 27... Return conduit, 28... Flow rate control valve, 2
9... IJ IJ-fu valve, 30... Flow priority valve, 31... Conduit, 32... Other fluid pressure device, 33... Pressure control valve, 34... Check valve, 35...
・Return conduit, 36... Connection part, 37... Conduit, 38
...Accumulator, 39...Diaphragm, 40
...liquid chamber, 41...gas chamber, 42...pressure sensor, 43-45...electromagnetic switching valve, 43a-45a...
・Solenoid, 43b~45b...Switch, 46~
48... Return conduit, 49-52... Check valve device with throttle, 53-56... Throttle, 57-60... Bypass passage, 61-64... Check valve, 65...・Solenoid on-off valve, 65a... Solenoid, 66... Control device, 6
7... Electronic control device, 68... Front wheel height sensor, 6
9... Rear wheel height sensor, 70... Indicator, 7
2...Vehicle height adjustment switch, 73...Housing, 7
4.75...passage, 76...valve chamber, 77...valve element, ? 7a...Rod, 78°79...Chamber, 80.
... Compression coil spring, 81 ... Hole, 82 ... Switch, 83, 84 ... Leaf spring, 85, 86 ゛ ... Contact, 87 ... Conductor, 88 ... Power supply, 89 ...
・Conducting wire.

Claims

[Scope of utility model registration request]

A working fluid supply source, a hydraulic actuator that increases vehicle height by being supplied with working fluid, a passage means for communicating and connecting the working fluid supply source and the actuator, and a passage means provided in the middle of the passage means. a pump means for supplying working fluid to the actuator from the working fluid supply source; an accumulator connected in communication with the passage means; and a passage means between the connecting portion of the passage means with the accumulator and the actuator. a check valve provided in the middle of the passage means between the pump means and the connecting portion to prevent the flow of working fluid from the connecting portion toward the pump means; ,
a pressure control valve provided in the middle of the passage means between the pump means and the connection part, the pressure control valve controlling the internal pressure of the passage means on the downstream side within a predetermined range;
A pressure sensor for detecting the pressure of the working fluid is provided in the passage means between the check valve and the opening/closing valve, and the pressure sensor detects that the pressure of the working fluid in the accumulator is below a predetermined value. and means for preventing the on-off valve from opening when the on-off valve is detected.