| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a tire which can reduce the air column tube resonance of a circumferential groove causing a noise problem when traveling and suppresses the generation of cracks accompanied by traveling at a groove fence. <P>SOLUTION: The tire includes: at least one circumferential groove having an inclined part that is inclined in a circumferential direction to extend; and a land sectioned by the circumferential groove. Also, at the inclined part in the circumferential groove, the tire includes a tread having a pair of projections formed to extend from the groove walls of both sides of the circumferential groove. The pair of projections 1A and 1B are arranged by an offset in the groove-length direction of the circumferential groove. The projection 1A disposed at the groove wall 2A on a side on which an angle α with the auxiliary line L in the groove on the side of an upstream X becomes a sharp angle is located at the side of the upstream X from the projection 1B formed at the groove wall 2B on the opposite side when an auxiliary line L is drawn in a tire width direction, one side divided by the auxiliary line L is set as the upstream side X, and an opposite side is set as a downstream side Y. <P>COPYRIGHT: (C)2012,JPO&INPIT |
