JPS60206786A - Power steering device - Google Patents

Power steering device

Info

Publication number
JPS60206786A
JPS60206786A JP6305984A JP6305984A JPS60206786A JP S60206786 A JPS60206786 A JP S60206786A JP 6305984 A JP6305984 A JP 6305984A JP 6305984 A JP6305984 A JP 6305984A JP S60206786 A JPS60206786 A JP S60206786A
Authority
JP
Japan
Prior art keywords
steering
cylinder
pair
brake
control cylinder
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP6305984A
Other languages
Japanese (ja)
Inventor
Kyosuke Haga
芳賀　恭輔
Tsuneo Tanaka
常雄 田中
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toyoda Koki KK
Original Assignee
Toyoda Koki KK
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toyoda Koki KK filed Critical Toyoda Koki KK
Priority to JP6305984A priority Critical patent/JPS60206786A/en
Publication of JPS60206786A publication Critical patent/JPS60206786A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D11/00—Steering non-deflectable wheels; Steering endless tracks or the like
    • B62D11/02—Steering non-deflectable wheels; Steering endless tracks or the like by differentially driving ground-engaging elements on opposite vehicle sides
    • B62D11/06—Steering non-deflectable wheels; Steering endless tracks or the like by differentially driving ground-engaging elements on opposite vehicle sides by means of a single main power source
    • B62D11/08—Steering non-deflectable wheels; Steering endless tracks or the like by differentially driving ground-engaging elements on opposite vehicle sides by means of a single main power source using brakes or clutches as main steering-effecting means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D5/00—Power-assisted or power-driven steering
    • B62D5/06—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
    • B62D5/20—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle specially adapted for particular type of steering gear or particular application
    • B62D5/22—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle specially adapted for particular type of steering gear or particular application for rack-and-pinion type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D9/00—Steering deflectable wheels not otherwise provided for

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Power Steering Mechanism (AREA)
  • Non-Deflectable Wheels, Steering Of Trailers, Or Other Steering (AREA)

Abstract

PURPOSE:To reduce energy consumption and to simplify the structure by feeding the fluid delivered through a control cylinder coupled to a steering mechanism to a cylinder system for steering assist coupled to a brake system. CONSTITUTION:Upon right turn of steering wheel 11, a rod 13 will move to the left thus to rotate a pair of wheels 15a, 15b to the right. Here, the piston 17 of control cylinder 16 will also move to the left thus to discharge the pressure oil from the left cylinder chamber 16a. Said pressure oil is fed to steering assist cylinder system 27a for the right wheel. Consequently, a pair of brake shoes 22a, 23a are enlarged to function the brake. As a result, the rotary speed of the right wheel will drop to produce such force as turning the body to the right. Consequently, desired turning is achieved through small steering force.

Description

【発明の詳細な説明】 〈産業上の利用分野〉 本発明は、動力舵取装置、特に車輪の制動によって操舵
補助を行うようにした動力舵取装置に関するものである
。DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a power steering device, and particularly to a power steering device that assists steering by braking wheels.

〈従来技術〉 一般の動力舵取装置においては、前車輪の向きを変える
操舵機構に、パワーシリンダを連結して動力補助を行う
ようにしているが、このものにおいては、ポンプから吐
出される流体圧で車輪の向きを直接変えるため、大きな
操舵エネルギーか必要となり、大容量の流体ポンプと大
形のパワーシリンダが必要となるだけでな（、エネルギ
ー消費も太き（なる問題がある。<Prior art> In a general power steering system, a power cylinder is connected to a steering mechanism that changes the direction of the front wheels to provide power assistance. Since the direction of the wheels is directly changed using pressure, a large amount of steering energy is required, which not only requires a large-capacity fluid pump and a large power cylinder, but also increases energy consumption.

このような問題を解決するものとしては、４！Ｉ公昭４
６−１１２８５号公報に示されるよつに、左右側車輪の
制動機構を作動させる一対のシリンダを設りるとともに
、この一対のシリンダを作動せせる倍力装置および電磁
開閉弁をそれぞれのシリンダに対応して設け、操向ハン
ドルの操舵方向に応じて電磁開閉弁をオンオフ作動させ
て操舵力の補助を行うようにしたものがある。As a solution to this kind of problem, 4! I Kosho 4
As shown in Publication No. 6-11285, a pair of cylinders are provided to operate the braking mechanisms for the left and right wheels, and a booster and an electromagnetic on-off valve for operating the pair of cylinders are provided for each cylinder. Some systems are equipped with a steering wheel, and assist the steering force by turning on and off an electromagnetic on-off valve depending on the steering direction of the steering wheel.

しかしながら、このものでは、占有スペースの大きな倍
力装置や倍力装置を作動させる圧縮空気源用のエアータ
ンクか必要となり、装置か人形になるだすな（、操舵方
向を電気的に検出して倍力装置へのエアーの供給を制御
し、この倍力装置の作動により制動用のシリンダへ圧油
を供給するといった電気、気圧、油圧変換方式であるた
め装置の機構が極めて複雑になる問題がある。However, this device requires a booster that occupies a large space, and an air tank for the compressed air source that operates the booster, so it becomes a device or a doll (the steering direction is electrically detected and the booster is doubled). The problem is that the mechanism of the device is extremely complicated because it uses electricity, air pressure, and hydraulic pressure conversion method, controlling the supply of air to the power device, and supplying pressure oil to the braking cylinder by operating this booster. .

〈発明の１」的〉 そこで本発明は、舵取機構に結合された制御シリンダか
らの吐出流体を利用して制動装置に連結した操舵補助用
のシリンダ装置を作動させるようにし、エネルギー／ｉ
！ｉ費がなく、かつ構造も極めて節１１１な動力舵取装
置を提供することを目的とするものである。<Objective of Invention 1> Therefore, the present invention operates a steering assist cylinder device connected to a braking device using fluid discharged from a control cylinder connected to a steering mechanism, and reduces energy/i.
! The object of the present invention is to provide a power steering device that is inexpensive and has an extremely simple structure.

〈発明の構成〉 本発明は、１榮向ハンドルに連結されたＩＩＳ取殿構に
結合され１榮向ハンドルの操作方向に応して一対の液圧
室のいずれかより流体を排出する制御シリンダを設ので
、この制御シリンダの一対の液圧室を前記一対のシリン
ダ装置のそれぞれに連通させ、さらに前記制御シリンダ
の吐出室を所定の値に制御する圧力制御手段を設りたこ
とを特徴とするものである。<Structure of the Invention> The present invention provides a control cylinder that is connected to an IIS intake structure connected to a first handle and discharges fluid from either of a pair of hydraulic chambers depending on the operating direction of the first handle. The control cylinder is characterized in that a pair of hydraulic chambers of the control cylinder are communicated with each of the pair of cylinder devices, and a pressure control means is further provided for controlling the discharge chamber of the control cylinder to a predetermined value. It is something to do.

〈実施例〉 以下本発明の実施例を図面に基ついて説明ずろ。<Example> Embodiments of the present invention will be described below with reference to the drawings.

第１図において１０は１榮向ハンドル１１か数例しｊら
れたハンドル軸であり、このハンドル軸１０はラックピ
ニオン機構１２を介してａノド１３に連結されている。In FIG. 1, reference numeral 10 denotes a handle shaft 11, which is connected to a handle shaft 11, and this handle shaft 10 is connected to a throat 13 via a rack and pinion mechanism 12.

そして、このロット１３の両θｊｊａは、舵取リンク機
構１４ａ、１４ｂを介して左右の車）・命１５ａ、１５
ｂに連結されており、燥向ハン１−ル１１の操作により
、車輪１５ａ、１５ｂの向きか変更される。Then, both θjja of this lot 13 are connected to the left and right cars) and lives 15a and 15 via the steering link mechanisms 14a and 14b.
By operating the drying handle 11, the orientation of the wheels 15a, 15b can be changed.

また、１６はロット１３に固設されたピストン１７を内
装する制御シリンダであり、この制御シリンダ１６のシ
リンダ本体１８はロット１３と３１′行な状態で車帖に
取付りられている。Further, 16 is a control cylinder which houses a piston 17 which is fixed to the rod 13, and the cylinder body 18 of this control cylinder 16 is attached to the vehicle manual in a state 31' in line with the rod 13.

−力、２０．３．２０ｂは左右の駆動輪内部に配設され
た一対の制動機構であり、ブレーキ１うＪ、２１ａ、２
１ｂの内周面に摺接して制動力をＮＩノするブレーキシ
ュー２２ａ、２２ｂおよび２３　；Ｊ　１２３ｂ、スプ
リング２４ａ、２４ｂ、ブレーキ用シリンダ装置２６ａ
、２６ｂ、操舵補助用シリンダ装置２１ａ、２７ｂによ
って構成されている。- Force, 20.3.20b is a pair of braking mechanisms arranged inside the left and right drive wheels, brakes 1, 21a, 2
Brake shoes 22a, 22b and 23 that slide on the inner peripheral surface of 1b and apply braking force to NI; J123b, springs 24a and 24b, and brake cylinder device 26a
, 26b, and steering assist cylinder devices 21a and 27b.

ブレーキ用シリンダ装置２６ａ、２６ｂには一対のビス
１７３０ａ、３０ｂおよび３１ａ、３１ｂが設りられ、
一方のピストン３０ａ、３０ｂはブレーキシ、ｉ、−２
２２＋　２２ｂの自由端側に連結され、他方のピストン
３１ａ、３１ｂは操舵補助用シリンダ装置２７ａ、２７
ｂのシリンダ本体３２ａ、３２ｂに連結されている。ま
た、この操舵補助用シリンダ装置Ｗ２７ａ、２７ｂのシ
リンダ本体３２ａ、３２ｂは軸方向に移動可能で、その
ピストン３３ａ、３３ｂが他方のブレーキシュー２３ａ
、２３ｂの自由端に連結されている。そして、ブレーキ
用シリンダ装置２６ａ、２６ｂは、配管３５を介してブ
レーキペダル３６により作動される作動シリンダ３７に
連通され、操舵補助用シリンダ装置２７．．ｌ、２７ｂ
の内、右側車輪のシリンダ装置２７ａは配管３８ａを介
して制御シリンダ１Ｇの左側のシリンダ室１６ａに連通
され、左側車輪のシリンダ装置２７ｂは、配管３８ｂを
介して制御シリンダ１６の右側のシリンダ室１６ｂに連
通されている。A pair of screws 1730a, 30b and 31a, 31b are provided in the brake cylinder devices 26a, 26b,
One of the pistons 30a and 30b is a brakeshi, i, -2
22+ 22b, and the other pistons 31a, 31b are connected to the steering assist cylinder devices 27a, 27.
It is connected to the cylinder bodies 32a and 32b of b. Further, the cylinder bodies 32a, 32b of the steering assist cylinder devices W27a, 27b are movable in the axial direction, and the pistons 33a, 33b are connected to the other brake shoe 23a.
, 23b. The brake cylinder devices 26a, 26b are communicated via piping 35 with an actuating cylinder 37 operated by a brake pedal 36, and the steering assist cylinder devices 27. ．． l, 27b
Of these, the cylinder device 27a for the right wheel is communicated with the left cylinder chamber 16a of the control cylinder 1G via a pipe 38a, and the cylinder device 27b for the left wheel is communicated with the right cylinder chamber 16b of the control cylinder 16 via a pipe 38b. is communicated with.

さらに、配管３８ａと３８ｂの間には、一対の逆止弁４
０ａ、４０ｂが互いに逆向きに接続されている。これら
の逆止弁４０ａ、４０ｂは、１榮舵補助用シリンダ装置
２７．Ｊ、２７ｂ内の圧力が設定圧以上になった場合に
配管３８ａ、３８ｂの旧ｊ圧側から低圧側へ圧油をバイ
パスするように作Ｉυノし、操舵補助用シリンダ装置２
７ａ、２７ｂの作り１時において所望の燥舵禎助が得ら
れるよりに作動圧が設定されている。Furthermore, a pair of check valves 4 are provided between the pipes 38a and 38b.
0a and 40b are connected in opposite directions. These check valves 40a and 40b are connected to the rudder assisting cylinder device 27. When the pressure in J and 27b exceeds the set pressure, pressure oil is bypassed from the old J pressure side of piping 38a and 38b to the low pressure side, and the steering assist cylinder device 2
The operating pressure is set so as to obtain the desired drying effect at the time of making 7a and 27b.

上記構成の動力舵取装置において、Ｉ榮向ハンｌ−ル１
１を右に旋回させるとロッド１３か図において左方へ移
動し、一対の車輪１５ａ、１５ｂをイ１方へ回動させる
とともに、ピストン１７を左進させて制御シリンダ１６
の左側のシリンダ室］　（ｉ　２から圧油をυ１出する
。これにより、右側の操舵補助用シリンダ装置２７ａに
圧油が供給されてピストン３２ａがブレーキシュー２３
ａを開く方向に移動するとともに、操舵補助用シリンダ
装置２７．］の本体３２がブレーキシュー２２’ａ側へ
移動し、ブレーキ用シリンダ装置２６ａのピストン３０
ａ。In the power steering device having the above configuration,
When the rod 13 is turned to the right, the rod 13 moves to the left in the figure, causing the pair of wheels 15a and 15b to rotate in the direction of A1, and moving the piston 17 to the left to move the control cylinder 16.
[The left cylinder chamber] (Pressure oil υ1 is discharged from i 2. As a result, the pressure oil is supplied to the right steering assist cylinder device 27a, and the piston 32a moves toward the brake shoe 23.
a in the direction of opening, and the steering assist cylinder device 27. ] The main body 32 moves toward the brake shoe 22'a, and the piston 30 of the brake cylinder device 26a
a.

３１２を介してブレーキシュー２２２を拡開させる。こ
れにより、ブレーキシュー２２ａ、２３ｂがブレーキト
ラム２１ａの内周面に摺接して制動力が発生し、右側の
車輪の回転速度が低下されて車輪を右側に旋回さ−ｌる
力か作用する。これにより、小さな操舵力で所望の旋回
を行うことができる。The brake shoes 222 are expanded via 312. As a result, the brake shoes 22a, 23b slide against the inner circumferential surface of the brake tram 21a to generate a braking force, and the rotational speed of the right wheel is reduced to exert a force that turns the wheel to the right. Thereby, a desired turn can be made with a small steering force.

なお、１榮舵補助用シリンダ装置２７ａ内の圧力が所望
の操舵補助をｉ！Ｉられる設定圧まで上昇した（多は、
逆止弁４０ｂの作動により管路３８ａの圧油か管路３８
ｂにバイパスされるため、操向パン１ル１１を右方へ旋
回させる動作か♀１１続している間、賑舵補助用シリン
ダ装置２７ａ内の圧力はかかる設定圧に維持され、操向
ハンドル１１の操舵子に関わらず一定の操舵補助か行わ
れる。Note that the pressure inside the steering assist cylinder device 27a provides the desired steering assistance i! The pressure has increased to the set pressure set by
Due to the operation of the check valve 40b, the pressure oil in the pipe 38a is removed from the pipe 38.
Since the operation of turning the steering pan 11 to the right continues, the pressure inside the rudder assisting cylinder device 27a is maintained at the set pressure, and the steering wheel 11 is bypassed. A certain amount of steering assistance is provided regardless of the number of steering elements.

また、操向ハンドル１１を左方に旋回させた場合にはロ
ノｌ”　ｌ　３か右方へ移動して制御シリンダ１６の右
側のシリンダ室１６ａから圧油か排出され、これが左側
の操舵補助用シリンダ装置２７　、、Ｉ。Furthermore, when the steering handle 11 is turned to the left, it moves to the right and pressurized oil is discharged from the right cylinder chamber 16a of the control cylinder 16, and this is used for steering assistance on the left side. Cylinder device 27,,I.

２７ｂに供給される。これにより、上記の場合と同様に
して左側のブレーキシ、ｉ、　２２ｂ、２３ｂが拡開し
て左側車輪に制動が掛けられ、左側の車輪の速度が低下
して車輌を左へ旋回させる力を発生ずる。27b. As a result, in the same way as in the case above, the left brakes, i, 22b, and 23b are expanded to apply braking to the left wheels, reducing the speed of the left wheels and generating a force that turns the vehicle to the left. arise.

一方、３６が操作されて、ブレーキ用シリンダ装置２６
ａ、２６ｂに圧油が供給された場合には、ブレーキ用シ
リンダ装置２６ａ、ＺＧｂ内の一対のピストン３０ａ、
３０ｂと３１ａ、３１ｂか移動し、ブレーキシュー２２
ａ、２２ｂを拡開するとともに、操舵補助用シリンダ装
置２７，１，２７ｂを介しζブレーキシュー２３ａ、２
３ｂを拡開させ、左右車輪に制動力を作用させる。On the other hand, when 36 is operated, the brake cylinder device 26
When pressure oil is supplied to a, 26b, the brake cylinder device 26a, a pair of pistons 30a in ZGb,
30b, 31a, and 31b, move the brake shoe 22.
a, 22b, and the ζ brake shoes 23a, 2 through the steering assist cylinder devices 27, 1, 27b.
3b is expanded to apply braking force to the left and right wheels.

〈発明の効果〉 以上述へたように本発明においては、舵取Ｉ７！！　Ｊ
ｆ？ｆに結合された制御シリンダからの吐出流体を利用
して制動装置に連結した操舵補助用のシリンダ装置を作
動させるようにしたので、動力補助のために全（エネル
ギーを必要としない上、構造を極め一ζ節）Ｑにできる
利点がある。<Effects of the Invention> As mentioned above, in the present invention, the steering I7! ! J
f? Since the fluid discharged from the control cylinder connected to Ultimate 1 ζ clause) There is an advantage that Q can do.

【図面の簡単な説明】[Brief explanation of the drawing]

図面は本発明の実施例を示す動力舵取装置の全体構成図
である。 １０・・・ハンドル軸、１１・・・操向ハンドル、１２
・・・ラックピニオン機構、１３・・・ＩＩ　７ド、１
Ｇ・　・　・制御シリンダ、２０ａ、２０１〕　・・制
動機構、２’ｌａ、２１ｂ・・・ブレーキトラム、２２
ａ、２２ｂ、２３ａ、２３ｂ、・・・プレーギソユー、
２７ａ、２７ｂ・・・操舵補助用シリンダ装置、４０ａ
、４０ｂ・・・逆止弁。 勃許出Ｉ頭人 豊田工機株式会社 後図面なしThe drawing is an overall configuration diagram of a power steering device showing an embodiment of the present invention. 10... Handle shaft, 11... Steering handle, 12
...Rack and pinion mechanism, 13...II 7 de, 1
G... Control cylinder, 20a, 201]... Braking mechanism, 2'la, 21b... Brake tram, 22
a, 22b, 23a, 23b, ... Pregi Soyu,
27a, 27b... Steering assist cylinder device, 40a
, 40b... check valve. Toyoda Machinery Co., Ltd. No drawings available

Claims (1)

【特許請求の範囲】[Claims] （１）車輪の制動によって操舵補助を行うようにした動
力舵取装置であって、左右両輪に設けられた制動機構を
独立して作動させる一対のシリンダ装置を設りるととも
に、操向ハンドルに連結された舵取機構に結合され操向
ハンドルの操作方向に応じて一対の液圧室のいずれかよ
り流体を排出する制御シリンダを設りて、この制御シリ
ンダの一対の液圧室を前記一対のシリンダ装置のそれぞ
れに連通させ、さらに前記制御シリンダの吐出圧を所定
の値に制御する圧力制御手段を設けたことを特徴とする
動力舵取装置。(1) A power steering device that assists steering by braking the wheels, and is equipped with a pair of cylinder devices that independently operate the braking mechanisms installed on both the left and right wheels, and a steering wheel on the steering wheel. A control cylinder is provided that is coupled to the connected steering mechanism and discharges fluid from either of the pair of hydraulic chambers in accordance with the operating direction of the steering handle, and the pair of hydraulic chambers of the control cylinder are connected to the pair of hydraulic chambers. 1. A power steering device comprising a pressure control means communicating with each of the cylinder devices and further controlling the discharge pressure of the control cylinder to a predetermined value.
JP6305984A 1984-03-29 1984-03-29 Power steering device Pending JPS60206786A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6305984A JPS60206786A (en) 1984-03-29 1984-03-29 Power steering device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6305984A JPS60206786A (en) 1984-03-29 1984-03-29 Power steering device

Publications (1)

Publication Number Publication Date
JPS60206786A true JPS60206786A (en) 1985-10-18

Family

ID=13218390

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6305984A Pending JPS60206786A (en) 1984-03-29 1984-03-29 Power steering device

Country Status (1)

Country Link
JP (1) JPS60206786A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7182353B2 (en) * 2002-01-17 2007-02-27 Divers Contracting Services, Inc. Turn brake for multi-track vehicles
WO2019042861A1 (en) * 2017-09-01 2019-03-07 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Foot brake module having an emergency steering function

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7182353B2 (en) * 2002-01-17 2007-02-27 Divers Contracting Services, Inc. Turn brake for multi-track vehicles
WO2019042861A1 (en) * 2017-09-01 2019-03-07 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Foot brake module having an emergency steering function

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