| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a pneumatic tire for improving on-ice breaking performance and partial-wear resistance. <P>SOLUTION: Sipes 11X provided in a rib 5 on the tire equatorial plane TE are formed in a three-dimensional shape where the amount of collapse of the rib 5 by the external force becomes smaller in one rotational direction of the tire than in the other rotational direction of the tire. In the block 10 of a shoulder region 1S, sipes 11Ma on the block tread-in side 10A have a three-dimensional shape where the amount of collapse of the block by the external force when the sipes 11Ma are provided entirely in the block 10 becomes smaller in one rotational direction of the tire than in the other rotational direction of the tire, and sipes 11Mb on the block kick-out side 10B have a three-dimensional shape where the amount of collapse of the block by the external force when the sipes 11Mb are provided entirely in the block 10 becomes smaller in the other rotational direction of the tire than in one rotational direction of the tire. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
