JPS6087766U

JPS6087766U - Power steering device

Info

Publication number: JPS6087766U
Application number: JP18042983U
Authority: JP
Inventors: 晃長谷川
Original assignee: トヨタ自動車株式会社
Priority date: 1983-11-22
Filing date: 1983-11-22
Publication date: 1985-06-17
Also published as: JPH0211250Y2

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図は同装置に用いたカムフォロアの拡大部分斜視図
、第３図は同装置における両シャフトの連結部を示す拡
大部分縦断面図、第４図は同装置に用いたケージの拡大
斜視図である。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・・・係合凹部、１４・・
・ピニオンシャフト、２１・・・バルブロータ、２２・
・、・バルブスリーブ、２４・・・カムフォロア、２６
ｂ・・・ボール、３０・・・押圧機構、３３・・・皿バ
ネ。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 partial perspective view of the cam follower used in the same device, Fig. 3 is an enlarged partial vertical sectional view showing the connecting portion of both shafts in the same device, and Fig. 4 is an enlarged perspective view of the cage used in the same device. It is. Explanation of symbols, 11... Valve housing, 12...
Input shaft, 12a... engaging recess, 14...
・Pinion shaft, 21...Valve rotor, 22・
... Valve sleeve, 24... Cam follower, 26
b...ball, 30...pressing mechanism, 33...disc spring.

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 second shaft that rotates integrally with a second shaft coaxially and rotatably connected to the first shaft by a predetermined amount. A valve sleeve arranged concentrically on the outer periphery of □, and a switching valve mechanism provided between the valve sleeve and the valve rotor and capable of switching the supply/discharge flow path to each oil chamber of the power oil IJ. In a power steering device comprising a rotary valve type control valve that operates the switching valve mechanism by relative rotation between the shafts to control supply and discharge of hydraulic oil to each oil chamber of the power cylinder, one of the two shafts is operated. An engaging recess or an engaging protrusion is formed with a pair of cam surfaces at the inner end, and rotation is regulated by engaging each cam surface of the engaging recess or engaging protrusion via a ball. At the same time, a cam follower, which is pushed a predetermined amount in the axial direction when the one shaft rotates, is attached to the other of the two shafts to restrict its rotation, and the cam follower is attached to the shaft by a spring member and hydraulic pressure that increases according to the vehicle speed. A power steering device characterized in that the two shafts are connected by urging the ball in the direction and pressing the ball against each of the cam surfaces.