| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a pneumatic tire which is improved in noise reduction performance exhibited by a resonator.SOLUTION: In a pneumatic tire, there are arranged: an air chamber in which at least two circumferential grooves extending to a tread circumferential direction while continuing there to are formed at a tread steeping surface, and which is opened at a land part surface in a position apart from the circumferential grooves in a land part which is defined between the two circumferential grooves out of the circumferential grooves; and a resonator having one or more one-side narrowed necks which make the air chamber communicate with one circumferential groove out of the two circumferential grooves, and one or more other-side narrowed necks which make the air chamber communicate with the other circumferential groove. The one-side narrowed neck and the other side narrowed neck are substantially the same with each other in cross sections, and an extension length of the one-side narrowed neck and an extension length of the other side narrowed neck differ from each other.</p> |
