| 摘要 |
PROBLEM TO BE SOLVED: To provide a pneumatic tire reducing air column resonance of a wide frequency band. SOLUTION: The pneumatic tire includes at least one circumferential groove 2a-2d extended in a tread circumferential direction on a tire tread 1, and a plurality of branch grooves 3 in which one end opens at the circumferential groove 2a-2d and the other end finalizes within a land part. In the pneumatic tire, the branch groove 3 is provided with a branch groove part 3a whose one end opens at the circumferential groove 2a to 2d, and an air chamber part 3b connected to the other end of the branch groove part 3a and having a cross section larger than that of the branch groove part 3a, and a sound absorbing layer 10 is provided to the air chamber part 3b. COPYRIGHT: (C)2011,JPO&INPIT |
