| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a tire capable of extending its life-span by restraining the occurrence of uneven wear, while restraining the chances of catching gravels. <P>SOLUTION: With regard to the tire having grooves, on the surface of its tread, in a direction crossing the equator of the tire extending via at least one bent part, the grooves being oriented in the width direction of the tire, the groove oriented in the width direction of the tire has at least one protrusion provided on the bottom of the groove at the bent portion. In the pneumatic tire, it is preferable that: the protrusion comes in stepwise contact with either of the two walls of the groove at the bent portion; the protrusions are provided in plurality in number toward the bent portion in the groove; the protrusions are placed in alignment in a direction in which the groove in the width direction of the tire extends while these protrusions alternately come in stepwise contact with the walls of the groove. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
