| 摘要 |
PROBLEM TO BE SOLVED: To provide a pneumatic tire which can effectively lower an air column resonance sound without deteriorating its uniformity. SOLUTION: In the pneumatic tire forming a cavity space 5 between an inner surface 4 of the tire and a rim 11, the cavity space 5 has at least two types of meridian cross sectional shapes, and a rotational mass is uniformly distributed over the whole periphery of the tire. In other words, a cross section adjusting member 21 including an expandable rubber is arranged circumferentially on the inside surface 4 of the tire, and the expansion rate of the cross section adjusting member 21 is varied in the peripheral direction of the tire while keeping the mass distribution of the cross section adjusting member 21 uniform over the whole periphery of the tire. COPYRIGHT: (C)2005,JPO&NCIPI
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