| 摘要 |
PROBLEM TO BE SOLVED: To reduce pitch noise caused by resonators, by improving an arrangement pattern of the resonators while maintaining a reduction effect of air column resonance. SOLUTION: In a pneumatic tire, a tread has at least one circumferential groove 1 extended along a tire circumferential direction and at least a row of rib-like lands 2 adjacent to the groove, and a plurality of resonators 3 are arranged in the rib-like lands 2. The resonator 3 is constituted of a bottleneck 3b opened to the circumferential groove 1, and an air chamber 3a communicating with the circumferential groove 1 through the bottleneck 3b and having a cross section larger than that of the bottle neck 3b. At least a thin groove 4 is disposed so that at least a part of the thin groove exists in sections A, D where compression stiffness becomes relatively large in the rib-like land 2. COPYRIGHT: (C)2008,JPO&INPIT |
