| 摘要 |
<p>A tread rubber (10) includes a cap portion (12) formed by a nonconductive rubber, a base portion (11) formed by a non-conductive rubber, and a conductive portion (13) formed by a conductive rubber. The rubber hardness of the cap portion (12) is higher than the rubber hardness of the base portion (11). The base portion (11) is segmented in a tire width direction. A rubber forming the cap portion (12) is filled in a recess (14)at a segmented position. The conductive portion (13) has a first portion (13a) which is provided in an outer side of the segmented position and extends to an inner side in the tire diametrical direction from the ground surface, and a second portion (13b) which is provided continuously in the first portion (13a) and extends in the tire width direction so as to run into the side surface or the bottom surface of the tread rubber (10).</p> |
