Patent ID: 6571843
Filing Date: 2003-06-03
Classification: B60C,Y10S

Abstract:
A pneumatic tire comprisinga tread portion provided with blocks, each said block provided with circumferentially opening v-shaped corners each defined between two corner walls intersecting each other, in a cross section including an intersecting line K of said two corner walls and a normal line drawn normally to the tread face from a radially outer end of the intersecting line K, the intersecting line K comprising an upper slanting part KU and a lower normal part KL, the upper slanting part KU extending radially inwards from the tread face to a point P1 with an inclination angle &thgr;1 with respect to said normal line, and the lower normal part KL extending radially inwardly from the point P1 in substantially parallel to said normal line, and a depth D1 of said point P1 from the tread face being in a range from 0.30 to 0.50 times a height H0 of the block, wherein each of the said two corner walls of each of the corners comprises an upper slanting part 6U and a lower normal part 6L which intersect each other defining an intersecting line T1, and the intersecting line T1 extends from the point P1 to a point P2 on an opposite edge L obliquely inclining radially inwards.