| 摘要 |
<p>A coreless rubber crawler enabling an increase in the life of a rubber crawler by minimizing cracking due to bending in wrapping around and enabling a reduction in cracking by eliminating the concentration of a bending deformation at a specific portion since bending rigidities in wrapping around are not so different from each other as a whole. In the coreless rubber crawler, steel cords are embedded in a rubber elastic body, rubber projections (3) used for driving are formed on the inner peripheral side thereof and rubber lugs (4) are formed on the outer peripheral side thereof. The rubber lug (4) is divided from the lateral center of the rubber crawler to the right and left sides, and each of the right and left rubber lugs is formed of an inside end area (4a), an outside end area (4b) and a center area (4c) joining these end areas to each other. The inner end area (4a) and the outer end area (4b) extend in the lateral direction of the crawler, the center area (4c) is diagonally disposed, the inner end area (4a) of the rubber lug corresponds to a portion between the rubber projections, and the outer end area (4b) of the rubber lug is disposed between the rubber projections.</p> |
