Patent ID: 6170547
Filing Date: 2001-01-09
Classification: B60C,Y10T

Abstract:
A pneumatic radial tire comprising, a radial carcass (22) of at least one ply, and a reinforcing belt (23) arranged on an outer peripheral side of said radial carcass (22), said reinforcing belt having a helical belt layer (24) in which a ribbon (40) comprised of a rubber (41) and a plurality of reinforcing cords (42) embedded in said rubber (41), each reinforcing cord (42) being substantially straight along its length, is successively wound in helical manner, at an angle with respect to a circumferential direction of a tread portion, wherein:said ribbon (40) forming said helical belt layer (24) has a cross-section in which said reinforcing cords (42) are dispersed in a thickness direction and a width direction of the ribbon (40).