| 摘要 |
<P>PROBLEM TO BE SOLVED: To solve the following problem: even in a structure in which a circumferential directional belt layer is widened, partial wearing is not avoided at a tread shoulder end where the circumferential directional belt layer is not arranged, and the circumferential directional belt layer has high rigidity, so that wearing balance between a shoulder and a center in a tread becomes wrong, causing the occurrence of uneven wearing in the tread. <P>SOLUTION: The pneumatic tire includes: at least one layer of the circumferential directional belt layer 15 which has two layers or more at a tire width direction-end section outside in a tire radial direction of a carcass 11; two or more inclined belt layers 17 outside in the tire radial direction of the circumferential directional belt layer 15, of which the inclined angle to a tire equator direction of the belt cord is 40 degrees or less: a between-layer cushion rubber 19 which is provided between adjoining layers at an end section of the inclined belt layer 17 in the tire width direction, and which has smaller modulus at 100% extension than a coating rubber of the inclined belt layer 17; and the tread 13 outside the inclined belt layer 17 in the tire radial direction. <P>COPYRIGHT: (C)2013,JPO&INPIT |
