| 摘要 |
PROBLEM TO BE SOLVED: To provide a pneumatic tire capable of reducing the conicity generated in a single run-flat tire with a reinforcing rubber layer arranged on side wall parts. SOLUTION: The pneumatic tire comprises a tread part 1, side wall parts 2A, 2B, and reinforcing rubber layers 10A, 10B having the crescent section which are arranged on the side wall parts 2A, 2B. The negative rate on the right side of a tire equatorial plane E of a tread of the tread part 1 is set to be larger than the negative rate on the left side. A tread gage G1 at the right hump position of the tire equatorial plane E is set to be larger than the tread gage G2 at the left hump position. By setting the tread gage at the right hump position of the tire equatorial plane E to be relatively large, the tread rigidity at the left hump position of the tire equatorial plane E is set to be relatively high, the force in the direction opposite to the conicity caused by asymmetry of the negative rate is generated to reduce the conicity. COPYRIGHT: (C)2006,JPO&NCIPI
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