| 摘要 |
PROBLEM TO BE SOLVED: To provide a side wall part reinforcement type run flat tire having more improved emergency traveling life than ever before. SOLUTION: The run flat tire having a pair of right and left bead parts 1, a pair of side wall parts 2 continuing respectively from the bead parts 1 to the outside in a tire radial direction, and a tread part 3 continuing to both side wall parts 2 includes: a carcass 4 comprising one or more carcass plies extending to a space between the pair of bead parts 1 in a toroidal shape and reinforcing each of these parts; a side reinforcement rubber layer 5 with a crescent-shaped cross section arranged inside the carcass 4 in the side wall part 2. A short fiber made of metal exists in the rubber constituting the side wall part 2, and a fiber cord forming the carcass 4 is a polyketone fiber cord. COPYRIGHT: (C)2011,JPO&INPIT
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