| 摘要 |
<p>PURPOSE:To realize downsizing of cable transfer system and to obtain a rubber tire balanced in viewpoint of heating and abrasion by specifying the dimensions, in the advancing direction, at the grounding part and the groove part of tread pattern formed at the tread part of rubber tire having specific hardness, respectively. CONSTITUTION:Grounding parts (a) and groove parts (b) are repeated alternately in the tread pattern of a rubber tire. Dimensions in the advancing direction of the grounding part (a) and the groove part (b) are set, respectively, at 20-25mm and 2-5mm in the upper and lower tread patterns and the hardness of rubber is set at 55-65 degrees. This arrangement enhances holding power and contact face pressure of tire with respect to a cable, realizing downsizing of transfer system and a balanced tire in viewpoint of heating and abrasion.</p> |
