JPS5949744U

JPS5949744U - Vehicle power steering device

Info

Publication number: JPS5949744U
Application number: JP14601882U
Authority: JP
Inventors: 修司鳥居; 尾崎　清孝
Original assignee: 日産自動車株式会社
Priority date: 1982-09-27
Filing date: 1982-09-27
Publication date: 1984-04-02

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図は従来の車両用パワーステアリング装置の液圧回
路図、第２図はこの考案の一実施例を示すパワーステア
リング装置の液圧回路図、第３図は第２図における実施
例の構成要素である切換制御回路の具体的な論理回路図
、第４図はこの考案に係るパワーステアリング装置の液
圧回路の第２の実施例を示す図、第５図は同じく液圧回
路の第３の実施例を示す図、第６図は同じ（液圧回路の
第４の実施例を示す図、第７図は第６図における実施例
の構成要素である切換制御回路の具体的な論理回路図、
第８図はこの考案の他の実施例を示すパワーステアリン
グ装置の液圧回路図、第９図は第８図におけるアクチュ
エータの取付状態を示す説明図である。１・・・液圧発生装置、２・・・液圧ポンプ、３・・・
ＩＪ　ＩＪ−フバルブ、４・・・フローコントロールバ
ルブ、７・・・ステアリングコントロールバルブ、８・
・・パワーシリンダ、１０・・・供給回路、１１・・・
電磁切換弁（切換弁）、１１ａ・・・スプリング、１１
ｂ・・・ソレノイド、１２・・・切換制御回路、２０・
・・ＩＪ　ＩＪ−フバルブ、２１・・・冷却器、２２・
・・分流回路、２３・・・絞り、２５・・・アクチュエ
ータ、２６．２７・・・抵抗板み１１＋、、、１１ｔ１１２０＝＝ｄ１７手１８＋第８図　　２４＋ −第６図几１ａ第７図Figure 1 is a hydraulic circuit diagram of a conventional vehicle power steering system, Figure 2 is a hydraulic circuit diagram of a power steering system showing an embodiment of this invention, and Figure 3 is the configuration of the embodiment shown in Figure 2. A concrete logic circuit diagram of the switching control circuit which is an element, FIG. 4 is a diagram showing a second embodiment of the hydraulic pressure circuit of the power steering device according to this invention, and FIG. 5 is a diagram showing the third embodiment of the hydraulic pressure circuit as well. FIG. 6 is the same (a diagram showing the fourth embodiment of the hydraulic circuit), and FIG. 7 is a diagram showing the specific logic circuit of the switching control circuit which is a component of the embodiment in FIG. figure,
FIG. 8 is a hydraulic circuit diagram of a power steering device showing another embodiment of the present invention, and FIG. 9 is an explanatory diagram showing the mounting state of the actuator in FIG. 8. 1... Hydraulic pressure generator, 2... Hydraulic pressure pump, 3...
IJ IJ-F valve, 4... Flow control valve, 7... Steering control valve, 8...
...Power cylinder, 10... Supply circuit, 11...
Electromagnetic switching valve (switching valve), 11a... Spring, 11
b...Solenoid, 12...Switching control circuit, 20.
...IJ IJ-Fvalve, 21...Cooler, 22.
...Shunt circuit, 23...Aperture, 25...Actuator, 26.27...Resistor plate 11+,,,1 1t1120==d 17 hand 18+ Fig. 8 24+ - Fig. 6 1a 7th figure

Claims

[Scope of utility model registration request]

In a vehicle power steering device comprising a hydraulic pump driven by an engine and a power cylinder to which output hydraulic pressure of the hydraulic pump is supplied via a steering control valve, the i-pressure pump and the steering control valve A power steering device for a vehicle, characterized in that a switching valve is provided in a supply circuit that communicates with the supply circuit, the switching valve opening and closing the supply circuit in accordance with the operation of a brake pedal.