| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a pneumatic tire capable of synthetically improving shoulder abrasion, vehicle exterior noise, and high-speed durability. <P>SOLUTION: The pneumatic tire includes a belt layer 7, a band layer 9, and an acoustic damper 10 made of a sponge material and attached to the radially internal surface TS of a tread 2. The width WA of the acoustic damper 10 in the axial direction of the tire is 40-70% of the tread ground-contact width TW. The band layer 9 has an overlapping part 12 in which two band plies 9A, 9B are overlapped on one another inside and outside in the radial direction, and the overlapping part 12 covers an external, as viewed in the axial direction of the tire, end of the belt layer 7 over the cover width WB that is 10-25% of the tread ground-contact width TW. An internal, as viewed in the axial direction of the tire, end 12i of the overlapped part 12 is spaced apart from the external, as viewed in the axial direction of the tire, end E of the acoustic damper 10 to the outside of the tire in the axial direction by the distance LC, and the distance LC is equal to 5-20% of the tread ground-contact width TW. <P>COPYRIGHT: (C)2012,JPO&INPIT |
