| 摘要 |
PROBLEM TO BE SOLVED: To provide a pneumatic tire capable of effectively reducing the pitch noise attributable to a resonator while reducing the air column resonance by installing the resonator. SOLUTION: In the tire, at least one circumferential groove 2 extending along the tire circumferential direction and a rib 3 adjacent thereto are provided on a tread part 1, and resonators 4 consisting of a narrow neck 4b opened in the circumferential groove 2, and an air chamber part 4a communicated with the circumferential groove 2 via the narrow neck 4b and having the sectional area larger than that of the narrow neck 4b are arranged in the tire circumferential direction. In at least one of the air chamber part 4a and the narrow neck 4b of the resonator 4, the resonator center line Ct as a normal line passing through a center of a bottom part in the section of the tire circumferential direction and a center of an opening in the tread face is inclined to the normal line NL extending outwardly in the tire radial direction through the center of the bottom part. COPYRIGHT: (C)2009,JPO&INPIT |
