JPS5974162U

JPS5974162U - Brake hydraulic pressure control device for vehicles with hydraulic vehicle height adjustment device

Info

Publication number: JPS5974162U
Application number: JP17076182U
Authority: JP
Inventors: 裕川口; 西名　秀芳
Original assignee: トヨタ自動車株式会社
Priority date: 1982-11-11
Filing date: 1982-11-11
Publication date: 1984-05-19
Also published as: JPH0143339Y2

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 the drawing]

図は本考案の一実施例である液圧制御装置の正面断面図
であり、また、それを取り付けた状態を示す系統図でも
ある。１θ：マスクシリンダ、１９，２１：液通路、２０：フ
ロポーショニングバルブ伊バルブ）、２２：リヤホイー
ルシリンダ、２６：ハウジング本体、２！３ニスリーブ
、３０：バルブピストン、３２：弁子、３４：弁座部材
、５４：第１アクチユエータ、５６：第２アクチユエー
タ、５８：第１ハウジング部材、６２：第２ハウジング
部材、６４：第３ハウジング部材、７０：第１．ピスト
ン、７６：第２ピストン、７８：空気圧室、８２ニスプ
リング、８４：作用部材。The figure is a front sectional view of a hydraulic pressure control device that is an embodiment of the present invention, and is also a system diagram showing the state in which it is installed. 1θ: Mask cylinder, 19, 21: Liquid passage, 20: Flow portioning valve), 22: Rear wheel cylinder, 26: Housing body, 2!3 sleeve, 30: Valve piston, 32: Valve element, 34: Valve seat member, 54: first actuator, 56: second actuator, 58: first housing member, 62: second housing member, 64: third housing member, 70: first. Piston, 76: second piston, 78: pneumatic chamber, 82 spring, 84: action member.

Claims

[Scope of Claim for Utility Model Registration] In a vehicle equipped with a hydraulic vehicle height adjustment device, a brake fluid disposed in a fluid passage connecting a brake mask cylinder and a wheel cylinder of a rear brake and transmitted to the wheel cylinder. The pressure control device is provided in a valve housing with one end exposed to the outside, and when the mask cylinder is in a non-operating position pushed into the housing, the expansion pressure of the mask cylinder is applied to the wheel cylinder. The valve piston is provided with a valve piston that allows the hydraulic pressure to be transmitted to the wheel cylinder as it is, and that suppresses the hydraulic pressure transmitted to the wheel cylinder in an operating position where the hydraulic pressure within the housing pushes the hydraulic pressure out of the housing by a certain distance. a hydraulic control valve; a first piston that receives vehicle height adjustment pressure from the vehicle height adjustment device and acts on the valve piston directly or indirectly through another member to urge the valve piston to the non-operating position; a first actuator comprising: a first actuator that is biased to an operative position by the elastic force of a spring, but is maintained in a non-operative position against the elastic force of the spring when receiving the vehicle height adjustment pressure; When the vehicle height adjustment pressure is reduced or disappears, it moves to the operating position and acts on the valve piston directly or indirectly through another member, and the valve piston is moved to the non-operating position by the elastic force of the spring. A brake fluid pressure control device for a vehicle equipped with a hydraulic vehicle height adjustment device, characterized in that the brake fluid pressure control device includes a second actuator having a second piston that exerts pressure on the vehicle.