| 摘要 |
PROBLEM TO BE SOLVED: To provide a tire for improving durability in bead parts, while reducing weight. SOLUTION: This tire includes a tread part 1, a pair of sidewall parts 2, a pair of bead parts 3, a carcass 5 composed of at least one carcass ply having a body part extending in a toroidal shape between bead cores 4 embedded in the respective bead parts 3 and a folding-back part folded back around the respective bead cores 4 and side rubber 8 arranged outside in the tire width direction of the carcass 5. A recessed part 10 composed of one or more of circular arcs having the center outside in the tire width direction more than the carcass 5, is formed in the side rubber 8 on at least one outside surface of the sidewall parts 2 and the bead parts 3 in a cross-section in the tire width direction. The recessed part 10 also has a straight line part 12 of partially becoming a straight line shape in the cross section in the tire width direction. COPYRIGHT: (C)2011,JPO&INPIT
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