| 摘要 |
<P>PROBLEM TO BE SOLVED: To improve turning performance while ensuring straightness on an ice road surface. <P>SOLUTION: In a pneumatic tire 1, a center land 5a has a center block row 6R comprised of center blocks 6 arranged in the tire circumferential direction, and a middle land 5b has a middle block row 7R comprised of middle blocks 7 arranged in the tire circumferential direction. The center land 5a is 1.1-2.0. times as many as a width of the middle land 5b in the tire axial direction, and each of the center blocks 6 is 1.5-2.5 times as many as a length of each of the middle blocks 7 in the tire circumferential direction. The center block row 6R has first center blocks 6a in which only first center sipes S1a each inclined in the same direction at an angle of 1-45° are spaced, and second center blocks 6b in which only second center sipes S1b each inclined in the opposite direction to the first center sipes are spaced. Under a normal load state, a ground-contact surface Se includes at least a part of each of the first and second center blocks 6a, 6b. <P>COPYRIGHT: (C)2012,JPO&INPIT |
