JPS62128934U

JPS62128934U -

Info

Publication number: JPS62128934U
Application number: JP1728886U
Authority: JP
Priority date: 1986-02-08
Filing date: 1986-02-08
Publication date: 1987-08-15

Description

[Brief explanation of the drawing]

第１図は、本考案による前車輪駆動軸ケースを
具備する農業用トラクターの側面図、第２図は、
同前車輪駆動軸ケースの拡大説明図、第３図及び
第４図は、キングピンサポートと過回転防止用ス
トツパーの操向操作に伴う位置関係の説明図であ
る。図中、Ａ：農業用トラクター、Ｂ：フロントギ
ヤケース、Ｃ：フロントギヤボツクス、ａ：機体
、８：前車輪駆動軸、９：前車輪、１２：前車軸
、１５：縦駆動軸、１８：キングピンサポート、
１８ａ：垂直伸延部、２２：車輪過回転防止用ス
トツパー。 FIG. 1 is a side view of an agricultural tractor equipped with a front wheel drive shaft case according to the present invention, and FIG.
FIGS. 3 and 4, which are enlarged explanatory views of the front wheel drive shaft case, are explanatory views of the positional relationship between the king pin support and the over-rotation prevention stopper as the steering operation is performed. In the figure, A: agricultural tractor, B: front gear case, C: front gear box, a: fuselage, 8: front wheel drive shaft, 9: front wheel, 12: front axle, 15: longitudinal drive shaft, 18: king pin support,
18a: Vertical extension part, 22: Stopper for preventing wheel over-rotation.

Claims

[Scope of claim for utility model registration] The front wheel drive shaft 8 is inserted into the front axle case 7,
The left and right ends of the drive shaft 8 are connected to the upper ends of a vertical drive shaft 15 that is built in the left and right front gear case B and acts as a king pin, and the lower ends of the vertical drive shaft 15 are connected to
A flat plate-shaped king pin support 18, which is built in the left and right front gear boxes C and is connected to the front axle 12 integral with the front wheels 9, and whose base end is fixed to the upper surface of the front gear box C, is attached to the side wall of the front gear case B. The upper end of the vertically extending portion 18a is bent toward the center of the front gear case B, and the bent portion is connected to the vertical drive shaft 15.
In the structure of the front wheel drive unit of an agricultural tractor, which is rotatably supported around the axis of the front gear case B, stoppers 22 of a minute height are protruded from both lateral sides of the front gear case B to prevent over-rotation of the wheels. A structure for preventing over-rotation of a front wheel of an agricultural tractor, characterized in that the side edges of the vertically extending portions 18a of 18 can come into contact with the upper surface of the stopper 22 at the maximum rotation position.