| 摘要 |
PURPOSE: A run flat tire with a cooking fin is provided to remarkably increase the driving distance of a run flat tire in a flat state since the durability of an insert rubber installed in the rear surface of a side wall is enhanced. CONSTITUTION: An insert rubber(3) is mounted in the sidewall(7) of a run flat tire(1) with a cooking fin. The cooling fin is installed in the insert rubber and is protruded from the sidewall. The cooling fin is shape memory alloy. For the shape memory alloy, when air pressure is applied to the run flat tire, the exposed part outside the sidewall is parallel to the surface of the sidewall and otherwise, the exposed part is perpendicular to the surface of the sidewall.
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