JPS6092665U

JPS6092665U - Power steering device

Info

Publication number: JPS6092665U
Application number: JP18585883U
Authority: JP
Inventors: 晃長谷川
Original assignee: トヨタ自動車株式会社
Priority date: 1983-12-01
Filing date: 1983-12-01
Publication date: 1985-06-25

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]

第１図は本考案の一例に係る動力舵取装置の縦断面図、
第２図は第１図の■−■線に沿う押圧機構の拡大横断面
囚、第３図は同押圧機構の変形例を示す部分拡大横断面
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、１２ａ・・−貫通穴
、１２ｂ・・・・・・係合穴、１４・・・・・・ピニオ
ンシャフト、２１……バルブロータ、２２……バルブス
ＩＪ　−−ｊ、３０・・・・・・押圧機構、３１・・・
・・・シリンダ部、３２゜３２Ａ・・・・・・ピストン
、３２ａ・・・・・・カム溝、３２ｂ・・・・・・嵌合
凹所、３３・・・・・・ボール。FIG. 1 is a longitudinal sectional view of a power steering device according to an example of the present invention;
FIG. 2 is an enlarged cross-sectional view of the pressing mechanism taken along the line ■--■ in FIG. 1, and FIG. 3 is a partially enlarged cross-sectional view showing a modification of the pressing mechanism. Explanation of symbols, 11...Valve housing, 12
...Input shaft, 12a...-through hole, 12b...Engagement hole, 14...Pinion shaft, 21...Valve rotor, 22...Valve IJ -- j, 30...pressing mechanism, 31...
... Cylinder part, 32° 32A ... Piston, 32a ... Cam groove, 32b ... Fitting recess, 33 ... Ball.

Claims

[Scope of utility model registration request]

A valve rotor that rotates integrally with a first shaft rotatably supported within a valve housing, and a valve rotor that is fitted onto a shaft end of the first shaft and connected coaxially and rotatably with a predetermined relative rotation via a torsion bar. The valve sleeve is arranged concentrically around the outer periphery of the valve rotor that rotates integrally with the second shaft, and the supply and discharge flow paths for each oil chamber of the power cylinder provided between the valve sleeve and the valve rotor can be switched. A power rudder comprising a rotary valve type control valve that operates the switching valve mechanism through relative rotation between the two shafts to control supply and discharge of hydraulic oil to each oil chamber of the power cylinder. In the mounting device, a piston that is slidable in the radial direction is attached to the outer shaft end of the shaft ends of the two shafts so as to be able to move forward and backward relative to the outer periphery of the inner shaft end, and A ball is interposed between the end portion and the piston, and is supported by one of the balls and slides the piston a predetermined distance outward in the radial direction by rotation of the coaxial end portion. A power steering device characterized in that a hydraulic pressure is applied to press the piston against the ball.