Coreless rubber crawler

Abstract

To improve the lifespan of a rubber crawler by reducing as much as possible cracks due to bending at the time of wraparound. Bending deformation no longer becomes concentrated at a specific place because bending rigidities at the time of wraparound are not so different from each other overall. For that reason, the occurrence of cracks can be reduced. As a result, the lifespan of the rubber crawler is improved. A coreless rubber crawler having steel cords embedded in an endless rubber elastic body and in which rubber projectionsused for driving are formed on an inner peripheral side thereof and rubber lugsare formed on an outer peripheral side thereof, wherein the rubber lugsare divided into right and left rubber lugs from the width-direction center of the rubber crawler, each of the right and left rubber lugs is configured by an inside end area, an outside end area, and a center areathat joins these end areas to each other, the inside end areasand the outside end areasextend in the width direction of the crawler, the center areasare diagonally disposed, the inside end areasof the rubber lugs correspond to interspaces between the rubber projections, and the outside end areasof the rubber lugs are disposed in interspaces between the rubber projections.