JPS61109869U

JPS61109869U -

Info

Publication number: JPS61109869U
Application number: JP19947484U
Authority: JP
Priority date: 1984-12-25
Filing date: 1984-12-25
Publication date: 1986-07-11
Also published as: JPH0413262Y2

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例に係る動力舵取装置
の全体構成図、第２図に第１図の矢印―線方
向の断面図である。符号の説明、Ａ……切換弁機構、Ｂ……油圧反
力機構、１３……インプツトシヤフト、１４……
ピニオンシヤフト、２１……バルブロータ、２２
……バルブスリーブ、３３……プランジヤ、３４
……固定絞り、３５……電磁制御弁、Ｐ５……第
１油路、Ｐ６……第２油路、Ｒ４……反力室。 FIG. 1 is an overall configuration diagram of a power steering device according to an embodiment of the present invention, and FIG. 2 is a sectional view taken in the direction of the arrow in FIG. 1. Explanation of symbols, A...Switching valve mechanism, B...Hydraulic reaction force mechanism, 13...Input shaft, 14...
Pinion shaft, 21...Valve rotor, 22
... Valve sleeve, 33 ... Plunger, 34
...Fixed throttle, 35...Solenoid control valve, P5...First oil passage, P6...Second oil passage, R4...Reaction force chamber.

Claims

[Scope of utility model registration request]

a first rotatably supported within the valve housing;
a valve rotor that rotates integrally with the shaft;
a valve sleeve that rotates integrally with a second shaft coaxially and connected to the shaft end of the shaft so as to be relatively rotatable by a predetermined amount, and that is arranged concentrically around the outer circumference of the valve rotor; A switching valve mechanism is provided between the valve rotors and is capable of switching the oil supply/drainage path to each oil chamber of the power cylinder, and a switching valve mechanism is inserted concentrically between the two shafts to connect the two shafts and control the valve according to the steering torque. A power steering system for a vehicle comprising: a torsion bar that generates relative rotation between a rotor and a valve sleeve; and a hydraulic reaction force mechanism that brakes rotation of the first shaft and transmits a reaction force to a handle side. A force mechanism is provided in a liquid-tight manner in a cam groove provided on the outer periphery of the first shaft at the fitting portion of the two shafts, and a through hole provided in the radial direction in the second shaft opposite to the cam groove. A plunger assembled so as to be slidable in the radial direction, a reaction force chamber provided at the back of the plunger in the through hole, and a part of the hydraulic fluid discharged from the hydraulic pump passed through a fixed throttle to the reaction force chamber. and a second oil passage that connects the first oil passage and the reservoir and includes a variable throttle valve that increases the amount of throttle according to an increase in vehicle speed. Power steering device for vehicles.