Pneumatic tire having sipes formed by shifting pitches of zigzag shape,申请号US20020113567-传众专利搜索

Pneumatic tire having sipes formed by shifting pitches of zigzag shape

申请公布号：US7077180(B2)

申请号：US20020113567

申请日期：2002.04.02

申请公布日期：2006.07.18

申请人：

THE YOKOHAMA RUBBER CO., LTD.

发明人：KUZE TETSUYA

分类号：B60C11/11;B60C11/12

主分类号：B60C11/11

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.