JPS6227879U

JPS6227879U -

Info

Publication number: JPS6227879U
Application number: JP11991685U
Authority: JP
Priority date: 1985-08-06
Filing date: 1985-08-06
Publication date: 1987-02-20

Description

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

第１図は本考案の第１実施例を示す全体系統図
。第２図は転舵比変更装置の具体的構成例を示す
図。第３図〜第５図は第２図の一部拡大図。第６
図、第７図は第２図に示す転舵比変更装置の原理
を説明するための簡略説明図であり、第７図は第
６図の側面図として示してある。第８図は転舵比
を変更する場合の一例を示す特性線図。第９図は
第２実施例を示す全体系統図。第１０図は第３実
施例の要部拡大断面図である。Ａ：前輪転舵機構、Ｂ：後輪転舵機構、Ｃ：ス
テアリング機構、Ｅ：転舵比変更装置、１Ｒ，１
Ｌ：前輪、２Ｒ，２Ｌ：後輪、１３：パワーシリ
ンダ、Ｘ：第１の中央復帰スプリング、Ｙ：第２
の中央復帰スプリング。 FIG. 1 is an overall system diagram showing a first embodiment of the present invention. FIG. 2 is a diagram showing a specific configuration example of the steering ratio changing device. 3 to 5 are partially enlarged views of FIG. 2. 6th
7 are simplified explanatory diagrams for explaining the principle of the steering ratio changing device shown in FIG. 2, and FIG. 7 is shown as a side view of FIG. 6. FIG. 8 is a characteristic diagram showing an example of changing the steering ratio. FIG. 9 is an overall system diagram showing the second embodiment. FIG. 10 is an enlarged sectional view of the main part of the third embodiment. A: Front wheel steering mechanism, B: Rear wheel steering mechanism, C: Steering mechanism, E: Steering ratio changing device, 1R, 1
L: Front wheel, 2R, 2L: Rear wheel, 13: Power cylinder, X: First center return spring, Y: Second
central return spring.

Claims

【実用新案登録請求の範囲】ハンドル操作に応じて前輪と共に後輪を転舵さ
せるようにした車両の四輪操舵装置において、後輪の転舵機構に連結され、前記ハンドル操作
の操作力を倍力するパワーシリンダと、該パワーシリンダ内に連設され、後輪が中立位
置へ復帰する方向に付勢する第１の中央復帰スプ
リングと、前記パワーシリンダ外に配設され、前記後輪転
舵機構に連係されて、後輪が中立位置へ復帰する
方向に付勢する第２の中央復帰スプリングと、を備えていることを特徴とする車両の４輪操舵装
置。[Scope of Claim for Utility Model Registration] A four-wheel steering system for a vehicle that steers both the front wheels and the rear wheels in response to a steering wheel operation, which is connected to a steering mechanism for the rear wheels and doubles the operating force of the steering wheel operation. a power cylinder that applies force to the center; a first center return spring that is arranged in series within the power cylinder and urges the rear wheels in a direction to return the rear wheels to the neutral position; and a first center return spring that is arranged outside the power cylinder and that controls the rear wheel steering mechanism. A four-wheel steering system for a vehicle, comprising: a second center return spring that is coupled to the spring and biases the rear wheels in a direction to return the rear wheels to a neutral position.