JPH042780U

JPH042780U -

Info

Publication number: JPH042780U
Application number: JP4338090U
Authority: JP
Priority date: 1990-04-23
Filing date: 1990-04-23
Publication date: 1992-01-10

Description

[Brief explanation of the drawing]

第１図は第１の実施例を装備する作業車の要部
を示す縦断背面図、第２図は同作業車の一部縦断
概略側面図、第３図は第１の実施例の概略平面図
、第４図は上記作業車の一部分の一部省略、一部
縦断平面図、第５図は同作業車の一部分の一部縦
断側面図、第６図は第１の実施例の要部を示す概
略斜視図、第７図は第２の実施例を装備する作業
車の要部を示す縦断背面図、第８図は第２の実施
例の概略平面図、第９図は第２の実施例の要部を
示す概略斜視図である。１……ミツシヨンケース、２……リヤアクスル
ハウジング、２ａ……フランジ、３……後輪アク
スル、４……後輪、５……ドラグロツド、６……
前輪、７……センタアーム、８……他のドラグロ
ツド、９……操舵アーム、１０……支持板、１０
ａ……取付け板部、１１……鉛直支軸、１２……
ナツクルアーム、１３……タイロツド、１５……
車体フレーム、２０……操舵ハンドル、２１……
操舵ギヤボツクス、２３……ナツクルアーム、２
４……タイロツド、２５……ナツクルアーム、３
０……ピン、３１……ユニバーサル・ジヨイント
、３３……ボルト、３４……支筒体。 Fig. 1 is a longitudinal cross-sectional rear view showing the main parts of a working vehicle equipped with the first embodiment, Fig. 2 is a partially vertical schematic side view of the same working vehicle, and Fig. 3 is a schematic plan view of the first embodiment. 4 is a partially omitted, partially longitudinal plan view of the working vehicle, FIG. 5 is a partially longitudinal side view of a portion of the working vehicle, and FIG. 6 is a main part of the first embodiment. 7 is a longitudinal cross-sectional rear view showing the main parts of a working vehicle equipped with the second embodiment, FIG. 8 is a schematic plan view of the second embodiment, and FIG. 9 is a schematic perspective view of the second embodiment. FIG. 2 is a schematic perspective view showing main parts of the embodiment. 1...Mission case, 2...Rear axle housing, 2a...Flange, 3...Rear axle, 4...Rear wheel, 5...Drag rod, 6...
Front wheel, 7... Center arm, 8... Other drag rod, 9... Steering arm, 10... Support plate, 10
a...Mounting plate part, 11...Vertical support shaft, 12...
Natsukuru arm, 13... Tie rod, 15...
Vehicle body frame, 20... Steering handle, 21...
Steering gear box, 23...Natsukuru arm, 2
4...Tie rod, 25...Natsukuru arm, 3
0... Pin, 31... Universal joint, 33... Bolt, 34... Support cylinder.

Claims

[Scope of Claim for Utility Model Registration] The left and right rear wheels 4, which are rotatably driven by the left and right rear wheel axles 3 in the left and right rear axle housings 2 attached to both sides of the transmission case 1, are connected to the left and right rear axle housings 2. A steering arm 9 connected via another drag rod 8 to a center arm 7 which steers and turns left and right front wheels 6 via a drag rod 5 is supported rotatably around a vertical axis. In a four-wheel steering system for a working vehicle, which is installed near the transmission case 1 and is configured to steer and turn the left and right rear wheels 4 at the same time as the left and right front wheels 6 via the steering arm 9, the left and right rear axle housings 2 are also provided. The steering arm 9 is supported by the vertical support shaft 11 embedded in the support plate 10, and the steering arm 9 and the knuckle arms 12 of the left and right rear wheels 4 are connected to each other. A four-wheel steering device characterized in that it is connected by tie rods 13.