| 摘要 |
PROBLEM TO BE SOLVED: To provide a run flat tire which can realize durability performance at run-flat driving and ride comfort at normal driving. SOLUTION: This run flat tire 1 has a reinforced rubber zone 8 inside in the tire axial direction of a side wall part 3, and in the reinforced rubber zone 8, an outer reinforced rubber zone 80 located outside in the tire axial direction and an inner reinforced rubber zone 81 located inside in the tire axial direction are provided adjacently, and the outer reinforced rubber zone 80 comprises a first reinforced rubber layer 82 having a first hardness and the inner reinforced rubber zone 81 comprises a second reinforced rubber layer 83 having a second hardness and a third reinforced rubber layer 84 having a third harness alternately laminated along the tire radial direction, wherein the first hardness is 65°or more in the Shore A hardness, the third hardness is smaller than the first hardness by 5 to 55°and the second hardness is in the middle of the first hardness and the third hardness. COPYRIGHT: (C)2004,JPO
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