JPH0431678U

JPH0431678U -

Info

Publication number: JPH0431678U
Application number: JP7503390U
Authority: JP
Priority date: 1990-07-13
Filing date: 1990-07-13
Publication date: 1992-03-13

Description

[Brief explanation of the drawing]

第１図は作業車用クローラの側面図、第２図は
要部の拡大側面図、第３図は従来例の作業車用ク
ローラの側面図、第４図は第３図の一部拡大側面
図である。１０２……クローラ、１０３……トラツクフレ
ーム、１０４……起動輪、１０５……遊動輪、１
０６……前部揺動アーム、１０７……後部揺動ア
ーム、１０８……中間揺動アーム、１０９，１０
９′，１０９″……前部下転輪、１１０，１１０
′，１１０″……後部下転輪、１１１……無限軌
道、１１２……軸架支点、Ｌ……接地長さ、ｌ，
ｌ′……軸架支点よりの距離。 Figure 1 is a side view of a crawler for a work vehicle, Figure 2 is an enlarged side view of the main parts, Figure 3 is a side view of a conventional crawler for a work vehicle, and Figure 4 is a partially enlarged side view of Figure 3. It is a diagram. 102...Crawler, 103...Truck frame, 104...Starting wheel, 105...Idler wheel, 1
06...Front swing arm, 107...Rear swing arm, 108...Intermediate swing arm, 109,10
9', 109''...Front lower wheel, 110, 110
', 110''... Rear lower roller, 111... Endless track, 112... Shaft fulcrum, L... Ground contact length, l,
l'...Distance from the shaft fulcrum.

Claims

[Scope of utility model registration request]

A starting wheel and an idler wheel are pivoted on the front and rear of the truck frame, a front and rear swing arm is pivoted on the lower part of the truck frame, and a front lower roller and a rear lower roller are respectively pivoted on the front and rear positions of a plurality of intermediate swing arms. In a system in which an endless track is rotatably suspended between rings,
The front swing arm and the rear swing arm are provided with a front lower roller on the front swing arm side and a rear lower roller on the rear swing arm side at a distance closer to the pivot support of the front and rear swing arm. A crawler for a work vehicle in which the rear lower roller on the front swing arm side and the front lower roller on the rear swing arm side are each pivoted at a long distance to increase the contact length of the endless track.