JPS6144365U

JPS6144365U - Vehicle power steering device

Info

Publication number: JPS6144365U
Application number: JP13010484U
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
Also published as: JPH0437026Y2

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図に示した流量調整弁の断面図、第４（ニ
）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、１ｏ・・・ステ
アリングハンドル、４１・・・供給油路、４１ａ・・・
油路、４５・・・排出油路、４６・・・分岐油路、４７
・・・接続油路、５１・・・反力室、５２，５３・・・
ピストン（押圧子）、６０・・・流量調整弁、６１・・
・流量調整弁の流出口、６２・・・第１流出口、６３・
・・第２流出口、７０・・・可変絞り弁、８０−・・固
定絞り。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 1-2 in Fig. 1,
FIG. 3 is a sectional view of the flow rate regulating valve shown in FIG. 1, and FIG. 4 (d) 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, 1o... Steering handle, 41... Supply oil path, 41a...
Oil path, 45... Discharge oil path, 46... Branch oil path, 47
...Connection oil passage, 51...Reaction force chamber, 52, 53...
Piston (presser), 60...Flow rate adjustment valve, 61...
・Outlet of flow rate adjustment valve, 62...first outlet, 63・
...Second outlet, 70--Variable throttle valve, 80--Fixed throttle.

Claims

[Scope of utility model registration request]

A control valve that operates in response to the handle operating force to supply and discharge pressurized oil discharged from the hydraulic pump to the power cylinder, and a pressure chamber that is pressed by the hydraulic pressure applied to it and transmits a reaction force to the handle side. In the power steering device for a vehicle comprising a hydraulic reaction force mechanism having a hydraulic reaction force mechanism, an inflow port connected to the hydraulic pump and the reaction force are connected in a supply oil path connecting the inflow port of the hydraulic pump and the control valve. The first connected to the force chamber
a flow rate regulating valve having a flow outlet and a second outlet connected to the inlet of the control valve and allowing a small constant flow rate to flow to the first outlet and a remaining amount to the second outlet; A variable throttle valve that throttles the oil passage according to the vehicle speed is provided in a branch oil passage branching from the discharge oil passage connecting the first outlet of the flow rate adjustment valve and the reaction force chamber and connected to the reservoir; A power steering device for a vehicle, characterized in that a fixed throttle is provided in an oil passage connecting a second outlet of a flow rate regulating valve and an inlet of the control valve, and a connecting oil passage connecting the discharge oil passage.