JPS6089073U

JPS6089073U - Rotary valve type control valve for power steering device

Info

Publication number: JPS6089073U
Application number: JP18253283U
Authority: JP
Inventors: 杉原　功一; 広司川上
Original assignee: トヨタ自動車株式会社
Priority date: 1983-11-25
Filing date: 1983-11-25
Publication date: 1985-06-18
Also published as: JPH0231346Y2

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) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図は本考案の一例に係る制御弁を備えた動力舵取装
置の縦断面図、第２図は第１図の■−■線に沿う拡大横
断面図、第３図は同制御弁の変形例を示す第２図に対応
する拡大横断面図である。符号の説明、１１・・・・・・バルブハウジング、１２
・・・・・・インプットシャフト、１４・・・・・・ピ
ニオンシャフト、２１・・・・・・バルブロータ、２２
・・・・・・バルブスリーブ、２３・・・・・・連結ピ
ン、３０・・・・・・連結機構、３１・・・・・・凹状
カム、３２・・・・・・ボール、３３・・・・・・バネ
部材。Fig. 1 is a longitudinal sectional view of a power steering device equipped with a control valve according to an example of the present invention, Fig. 2 is an enlarged cross-sectional view taken along the line ■-■ in Fig. 1, and Fig. 3 is an enlarged cross-sectional view of the control valve. FIG. 3 is an enlarged cross-sectional view corresponding to FIG. 2 showing a modified example of FIG. Explanation of symbols, 11...Valve housing, 12
...Input shaft, 14...Pinion shaft, 21...Valve rotor, 22
... Valve sleeve, 23 ... Connection pin, 30 ... Connection mechanism, 31 ... Concave cam, 32 ... Ball, 33 ... ...Spring member.

Claims

[Scope of utility model registration request]

a valve rotor that rotates integrally with a first shaft rotatably supported within the valve housing; and an axis of the first shaft that is arranged concentrically around the outer periphery of the valve rotor and constitutes a switching valve mechanism together with the valve rotor. The valve sleeve is provided with a valve sleeve that rotates integrally with a second shaft that is fitted and connected to the end portion so as to be relatively rotatable by a predetermined amount, and the switching valve mechanism is actuated by the relative rotation between the valve sleeve and the valve rotor. In a rotary valve type control valve of a power steering device that controls supply and discharge of hydraulic oil to each oil chamber of a power cylinder, a ball-shaped control valve is provided on the outer shaft end of the shaft ends that fit together with each other. A through hole for supporting the presser is provided, and a concave cam is provided at the inner shaft end to push the presser outward when the coaxial end rotates relative to each other, and the outer periphery of the outer shaft end is provided. A rotary valve for a power steering device, characterized in that an annular spring member for elastically pressing the presser against the concave cam is arranged, and the two shafts are connected by the pressing action of the spring member. type control valve.