| 摘要 |
Disclosed is a pneumatic tire provided with multiple blocks 6 on a tread 1 . A sipe 7 provided on the block 6 is formed by shifting pitches of a zigzag shape 7 a on a tread face 1 a side of the sipe and a zigzag shape 7 b on a bottom side thereof in the width direction of the tire, and by connecting concave and convex flexion points a, a', b and b' on the both of the zigzag shapes with edge lines x 1, x 2 and x 3. The block 6 is sectioned by the sipe 7 into a concavo-convex face A in which convex triangular pyramids Aa and convex reverse triangular pyramids Ab are alternately arranged, and a concavo-convex face B in which concave triangular pyramids Ba and concave reverse triangular pyramids Bb are alternately arranged. The concavo-convex faces A sectioned by the sipes are at least disposed in both outermost positions in the circumferential direction of the block in a manner that the concavo-convex faces A are oriented outward from the block.
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