| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To improve the tire performance such as handling or stability by improving rigidity better than that of the conventional two-dimensional sipes. <P>SOLUTION: A sipe 20 comprises the depth in the radial direction V, a first sipe face 20', a second sipe face 20" facing to the first sipe, and a center face having a multidimensional size located in an equal distance from the both sipe faces 20', 20". The center face has at least two projection rows adjacent to each other in the radial direction, and the projection rows adjacent to each other in the radial direction are separated by a flat part. The flat part is a zigzag shape with predetermined length and width. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
