| 摘要 |
PROBLEM TO BE SOLVED: To provide a belt structure having excellent durability, particularly against a local impact such as running over projections, in a tire including a belt composed of at least two layers. SOLUTION: In the tire, a carcass 2 extended in a toroidal shape between a pair of bead cores 1 is used as a skeleton, and the belt 3 composed of at least the two layers of belt layers having a plurality of cords coated with rubber is disposed outside in the radial direction of the carcass 2. The radially innermost belt layer 3a of the belt is harder than the belt layer 3b lying radially outside the radially innermost belt layer. COPYRIGHT: (C)2011,JPO&INPIT
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