JPS6144364U

JPS6144364U - Vehicle power steering device

Info

Publication number: JPS6144364U
Application number: JP13010384U
Authority: JP
Inventors: 広司川上; 功一杉原
Original assignee: トヨタ自動車株式会社
Priority date: 1984-08-27
Filing date: 1984-08-27
Publication date: 1986-03-24

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図は本考案の一実・施例を示す車両用動力舵取装置
の概略構成図、第２図は第１図の■一■線に沿う断面図
、第３図は第１図に示しｔ÷流量調整弁の断面図、第４
図は第１図に示した装置によって得られる特性線図であ
る。符号の説明、Ａ・・・制御弁、ａ・・・制御弁の流入口
、Ｂ・・・油圧反力機構、Ｃ・・・パワーシリンダ、Ｐ
・・・油圧ポンプ、Ｔ・・・リザーバ、１０・・・ステ
アリングハンドル、′４１・・・供給油路、４５・・・
排出油路、６・・・分岐油路、５１・・・反力室、５２
，５３・・・ピストン（押圧子）、′６０・・・流量調
整弁、６１・・・流量調整弁の流入口、６２・・・第１
流出口、６３・・・第２流出口、７０・・・可変絞り弁
。Fig. 1 is a schematic configuration diagram of a power steering device for a vehicle showing an embodiment of the present invention, Fig. 2 is a sectional view taken along line 1 and 2 in Fig. 1, and Fig. t ÷ Cross-sectional view of the flow rate adjustment valve, No. 4
The figure is a characteristic diagram obtained by the apparatus shown in FIG. 1. Explanation of symbols, A...Control valve, a...Inflow port of control valve, B...Hydraulic reaction force mechanism, C...Power cylinder, P
... Hydraulic pump, T... Reservoir, 10... Steering handle, '41... Supply oil path, 45...
Discharge oil path, 6... Branch oil path, 51... Reaction force chamber, 52
, 53...Piston (presser), '60...Flow rate adjustment valve, 61...Inflow port of flow rate adjustment valve, 62...First
Outlet, 63...Second outlet, 70...Variable throttle valve.

Claims

[Scope of utility model registration request]

A control valve that operates in response to the handle operating force to supply and discharge pressure oil from the discharge hole from the hydraulic pump to the power cylinder, and a reaction force chamber that is pressed by the hydraulic pressure applied to it and transmits the reaction force to the handle side. In a vehicle power steering device comprising a hydraulic reaction force mechanism having a pusher, an inlet connected to the hydraulic pump and an inlet connected to the control valve are provided in a supply oil path connecting the inlet of the hydraulic pump and the control valve. The control valve has a first outlet connected to the reaction force chamber and a second outlet connected to the inlet of the control valve, so that a small constant flow rate is passed to the first outlet and the remaining amount is transferred to the second outlet. A flow rate adjustment valve is installed to allow the oil to flow into the reservoir, and the oil is supplied to the reservoir according to the vehicle speed. A vehicle power steering device characterized by being provided with a variable throttle valve that narrows the road.