| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To stably reduce noise despite the change in the state of use, while preventing blocks from easily chipping off. <P>SOLUTION: A pneumatic tire 1 includes a tread portion 10 formed with circumferential grooves 11 extending in the tire circumferential direction S, and lug grooves 12 extending in the tire width direction H. The outer surface of the tread portion 10 is partitioned into the plurality of blocks 13 by these circumferential grooves 11 and lug grooves 12. At least one of both end portions of the block 13 in the tire circumferential direction S is formed with a raised portion 14 projecting outward in the tire radial direction from a virtual contour line L that is drawn by extending an upper surface of a center portion of the block 13 in the tire circumferential direction S outward in the tire circumferential direction S. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
