CORELESS RUBBER BELT TYPE CRAWLER TRAVELING DEVICE, AND IDLER, TRUCK ROLLER, AND SPROCKET DEVICE STRUCTURE USED FOR THE DEVICE

摘要

PROBLEM TO BE SOLVED: To prevent the deterioration of the traveling performance of a coreless rubber belt type crawler traveling device by applying covers to hollow openings in a pair of right and left side hollow roller type rolling parts of an idler, a truck roller, and a sprocket to prevent, by the covers, sediment from entering inside from both outer surfaces of the pair of rollers so as to eliminate the accumulation of the sediment therein.;SOLUTION: This coreless rubber belt type crawler traveling device comprises the idler, truck roller, and sprocket device structure having a coreless rubber belt with lug projected part at the lateral center part of a belt and a pair of right and left side hollow roller type rolling parts positioned on both sides of the lug projected part of the rubber belt and having a generally same rolling surface width as the width of the belt on both sides of the lug projected part, and a truck frame having the idler, truck roller, and sprocket device structure installed thereon. The covers for covering the hollow openings in the rollers are applied to the pair of right and left side hollow roller type rolling parts of the idler, truck roller, and sprocket device structure.;COPYRIGHT: (C)2003,JPO