| 摘要 |
PROBLEM TO BE SOLVED: To provide a runflat tire suppressing heat generation of inner liner layers in runflat traveling and improving durability. SOLUTION: Intermediate regions Q, Q adjacent to reinforcement rubber layers 7, 7 that are from positions A, A departing by 10 mm from upper ends 7a, 7a in the tire radial direction at least of the reinforcement rubber layers 7, 7 out of the inner liner layers 5 toward bead side along the inner liner layers 5 to positions B, B equivalent to 1/2 of a tire cross-sectional height SH are constructed of a low heat generating material with 0.03-0.10 tanδat 60°C. COPYRIGHT: (C)2011,JPO&INPIT |
