JPS6435181U

JPS6435181U -

Info

Publication number: JPS6435181U
Application number: JP13003287U
Authority: JP
Priority date: 1987-08-28
Filing date: 1987-08-28
Publication date: 1989-03-03
Anticipated expiration: 2002-08-28
Also published as: JPH061507Y2

Description

[Brief explanation of the drawing]

第１図および第２図は本考案の一実施例を示す
同相モード時および逆相モード時の全体構成図、
第３図は第２図のＸ―Ｘ線矢視断面図、第４図は
リアステアリングアクチユエータを示す側断面図
、第５図はリアステアリングアクチユエータの入
出力特性図、第６図はモード切換ギヤボツクスの
側断面図、第７図は第６図のＹ矢視図、第８図は
第７図のＡ―Ａ線矢視断面図、第９図は第７図の
Ｂ―Ｂ線矢視断面図、第１０図は効果を説明する
舵角特性図である。３……フロントピツトマンアーム、８……第１
アイドラリンク、１３……リヤピツトマンアーム
、２０……リヤステアリングアーム、３０……モ
ード切換ギヤボツクス、３３……第１ギヤ、３４
……第２ギヤ、３６……第２ギヤアーム、３９…
…第３ギヤ、４０……クラツチ、４４……クラツ
チ作動用アクチユエータ、４９……ギヤアーム固
定用アクチユエータ。 FIG. 1 and FIG. 2 are overall configuration diagrams in in-phase mode and anti-phase mode showing one embodiment of the present invention,
Figure 3 is a sectional view taken along the line X--X in Figure 2, Figure 4 is a side sectional view showing the rear steering actuator, Figure 5 is an input/output characteristic diagram of the rear steering actuator, and Figure 6. 7 is a side sectional view of the mode switching gearbox, FIG. 7 is a sectional view taken along the Y arrow in FIG. 6, FIG. 8 is a sectional view taken along the line AA in FIG. FIG. 10, which is a sectional view taken along the line, is a steering angle characteristic diagram illustrating the effect. 3...Front pittman arm, 8...1st
Idler link, 13... Rear pitman arm, 20... Rear steering arm, 30... Mode switching gear box, 33... First gear, 34
...Second gear, 36...Second gear arm, 39...
... Third gear, 40... Clutch, 44... Actuator for actuating the clutch, 49... Actuator for fixing the gear arm.

Claims

[Scope of utility model registration request]

A pitman arm for the front wheels is connected to the input side of a mode switching gearbox via a link, an output side of the gearbox is connected to a steering arm for the rear wheels via a link and an actuator, and a bevel gear on the input side and a bevel gear on the output side are connected to the gearbox. and a bevel gear on the same axis, and a planetary gear meshing with both bevel gears is rotatably supported on the shaft portion of the bevel gear on the input side via a gear arm.
A four-wheel steered vehicle comprising: a clutch that connects and disconnects the shaft portions of both bevel gears; and an actuator that operates the clutch; and an actuator that locks rotation of the gear arm.