Patent ID: 6155363
Filing Date: 2000-12-05
Classification: B60G,B60K,B60Y,B62D

Abstract:
A crawler belt vehicle comprising: a chassis; a pair of first wheels mounted on the chassis; a pair of second wheels mounted on the chassis; a pair of crawler belts each trained around respective ones of the first pair of wheels and the second pair of wheels, each of the crawler belts having a plurality of low-friction members spaced-apart from each other in a longitudinal direction of the crawler belt; a pair of equalizers each for pressing one of the crawler belts against a ground, each of the equalizers having a leaf spring having a first end connected to the chassis and a second end opposite the first end, and a slider supported on the second end of the leaf spring for undergoing pivotal movement about an axis extending in the longitudinal direction of the crawler belt for pressing the crawler belt against the ground by the resiliency of the leaf spring; wherein each of the low-friction members of the crawler belt projects into sliding contact with the slider and has a lower coefficient of friction than that of the crawler belt; and wherein each of the sliders is positioned at a distance from the respective crawler belt via the low-friction members; a pair of front wheels mounted on a front portion of the chassis, each of the front wheels having a pneumatic tire having a ground pressure set within a range of 0.1-0.15 kgf/cm.sup.2 ; wherein the first wheels are disposed on a first side of the chassis and comprise a first rear wheel having a pneumatic tire and mounted on a rear portion of the chassis and a first intermediate wheel mounted on the chassis between the front wheels and the first rear wheel; wherein the second wheels are disposed on a second side of the chassis opposite the first side thereof and comprise a second rear wheel having a pneumatic tire and mounted on the rear portion of the chassis and a second intermediate wheel mounted on the chassis between the front wheels and the second rear wheel; and wherein a ground pressure of the crawler belts is set within a range of 0.04-0.05 kgf/cm.sup.2.