Patent ID: 6520230
Filing Date: 2003-02-18
Classification: B60C

Abstract:
A tread for a pneumatic tire, said tread having rows of tread blocks formed by at least one groove, the tread blocks comprising chamfers wherein each of the chamfers have a sharply defined cut line at the tread block and extend to a plane defining the non-side depth of the tread, each of the chamfers having an inclined surface, the inclined surface being inclined at an angle of 30Â°-65Â° with respect to the plane, and wherein the cut lines of at least three chamfers in different rows of tread blocks are aligned along a portion of an extent (a) of the tread such that the cut lines of the at least three chamfers are colinear and define an aligned pattern; the aligned pattern is periodically disposed in a length direction (l) of the tread and axially adjacent inclined surfaces of the aligned cut lines are angled in opposing directions relative to the length direction of the tread.