Patent ID: 6422666
Filing Date: 2002-07-23
Classification: B62D

Abstract:
An elastic crawler, comprising a crawler body formed of an elastic material into an endless band; a plurality of core members having right and left wings, respectively, and provided in the crawler body laterally with respect to the crawler body and in parallel to each other with a space therebetween in the longitudinal direction of the crawler; and a pair of right and left lugs raised at positions overlapping projected planes of the right and left wings, respectively, on a ground-contacting surface of the crawler body on the right and left sides of a center in a widthwise direction of the crawler body,wherein one of the pair of right and left lugs has a ground-contacting surface extending to and overlapping projected planes of a plurality of right or left wings on the same side as the lug adjacent each other in a longitudinal direction of the crawler and having a ground-contacting length in a circumference direction of the crawler, while the other lug has a ground-contacting surface overlapping a projected plane of one of the right and left wings on the same side as the lug and having another ground-contacting length in the circumference direction, the ground-contacting length of the latter lug being formed shorter than that of the former lug so that the ground-contacting surfaces of the pair of right and left lugs are different in the ground-contacting length, the pair of right and left lugs having the ground-contacting surfaces different in the ground-contacting lengths being alternately arranged in the longitudinal direction of the crawler so as to be staggered along the crawler.