JPS60152573U

JPS60152573U - Hydraulic reaction force type power steering rotation control valve device

Info

Publication number: JPS60152573U
Application number: JP4056184U
Authority: JP
Inventors: 修佐野; 英雄松原
Original assignee: 光洋精工株式会社
Priority date: 1984-03-23
Filing date: 1984-03-23
Publication date: 1985-10-11
Also published as: JPH0216938Y2

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図は従来装置の一部切断正面図、第２図は第１図の
要部拡大正断面図、第３図は第２図のシール部に圧力が
作用しない時の正断面図、第４図は同圧力が作用した時
の正断面図、第５図は本考案の第１実施例の一部切断正
面図、第６図は第５図のＡ−Ａ平断面図、第７図は本考
案の第２実施例の第６図相当図、第８図は操舵力の油圧
のグラフである。１・・・入力軸、２・・・ハウジング、３・・・トーシ
ョンバー、６・・・ピニオン、７・・・出力軸、８・・
・バルブボディー、２０・・・シール筒、２１・・・シ
ール部材、２２．３２・・・反力部、２２ａ、３２ａ・
・・シリンダー室、２３．３３・・・反力ビストン。Fig. 1 is a partially cutaway front view of the conventional device, Fig. 2 is an enlarged front sectional view of the main part of Fig. 1, Fig. 3 is a front sectional view of Fig. 2 when no pressure is applied to the sealing part, Fig. 4 is a front sectional view when the same pressure is applied, Fig. 5 is a partially cutaway front view of the first embodiment of the present invention, Fig. 6 is a plane sectional view taken along line AA in Fig. 5, and Fig. 7. 6 is a diagram corresponding to FIG. 6 of the second embodiment of the present invention, and FIG. 8 is a graph of the hydraulic pressure of the steering force. 1... Input shaft, 2... Housing, 3... Torsion bar, 6... Pinion, 7... Output shaft, 8...
・Valve body, 20...Seal tube, 21...Seal member, 22.32...Reaction force part, 22a, 32a・
...Cylinder chamber, 23.33...Reaction force piston.

Claims

[Scope of utility model registration request]

The rotation of the steering wheel input shaft is transmitted to the oil passage switching valve integrated with the output shaft via the torsion bar, and the pressure oil from the oil pump is applied in the steering direction, and the pressure in the reaction force chamber is applied to the torsion bar to twist it. In a hydraulic reaction force type power steering rotation control valve device designed to regulate
The outer surface of the reaction force part of the output shaft is loosely fitted into the inner surface of the seal cylinder so that rotational and sliding resistance is extremely small, and the reaction force piston is fitted into the cylinder formed in the radial direction of the reaction force part, so that the tip of the reaction force piston is A rotation control valve device for hydraulic reaction force type power steering capable of pressing the outer periphery of an input shaft.