发明名称 PNEUMATIC TIRE
摘要 An outer side rib 46 is formed at a side relative to the plural circumference direction main grooves that is at the vehicle outer side when the tire is mounted at a vehicle. A land portion of the outer side rib 46 is continuous in the tire circumference direction. Of the plural circumference direction main grooves, an outermost side circumference direction main groove 24 is formed at the vehicle outermost side when the tire is mounted. Fourth lug grooves 42 extend from the outermost side circumference direction main groove 24 toward the outer side rib 46. The groove width of each fourth lug groove 42 widens from the outermost side circumference direction main groove 24 side toward the outer side rib 46 side. The fourth lug grooves 42 terminate at the outermost side circumference direction main groove 24 side relative to a tire ground contact edge 16E.
申请公布号 US2015020937(A1) 申请公布日期 2015.01.22
申请号 US201214368620 申请日期 2012.12.21
申请人 BRIDGESTONE CORPORATION 发明人 Nakamura Takamitsu;Kawahara Takahiro
分类号 B60C11/03;B60C11/12;B60C11/13 主分类号 B60C11/03
代理机构 代理人
主权项 1. A pneumatic tire, comprising: a plurality of circumference direction main grooves that are formed at a tread portion and extend in the tire circumference direction; an outer side rib that, when the tire is mounted at a vehicle, is formed at a tire mounting outer side relative to the plurality of circumference direction main grooves, a land portion of the outer side rib being continuous in the tire circumference direction; and a lug groove that extends from an outermost side circumference direction main groove toward the outer side rib, the outermost side circumference direction main groove being formed furthest to the tire mounting outer side, when the tire is mounted at the vehicle, among the plurality of circumference direction main grooves, a groove width of the lug groove widening from the outermost side circumference direction main groove side thereof toward the outer side rib side, and the lug groove terminating further toward the outermost side circumference direction main groove side than a tire ground contact edge at the tire mounting outer side.
地址 Chuo-ku, Tokyo JP