| 摘要 |
<P>PROBLEM TO BE SOLVED: To achieve both of wet performance and partial wear resistance performance. <P>SOLUTION: A lateral main groove 16 formed on a tread 12 extends in a direction crossing a circumferential main groove 14, and opens to the circumferential main groove 14. The top face of a bottom raised part 118 provided to an end part opening to the circumferential main groove 14 in the lateral main groove 16 is formed by a first inclined face 21A and a second inclined face 22A (inclined faces) which extend from one land part 21 and the other land part 22 respectively and are inclined in a tread depth direction respectively. Accordingly, water between the tread 12 and a road surface is discharged to the circumferential main groove 14 through the lateral main groove 16 in wet running. The bottom raised part 118 is continuously integrally provided between the one land part 21 and the other land part 22 adjacent to the lateral main groove 16 in a tire circumferential direction, and the top face of the bottom raised part 118 is formed by the inclined faces. Consequently, when the tread is grounded, the end part of the land part is hardly locally expanded, and local friction to the road surface is hardly caused. <P>COPYRIGHT: (C)2013,JPO&INPIT |
