Patent ID: 6786258
Filing Date: 2004-09-07
Classification: B29C,B29K,B29L,B60C,Y10T

Abstract:
A tire made of vulcanized rubber of at least two rubber mixes of different composition and properties, the said two mixes forming a lap joint in which at least one edge of at least one of the two mixes is superimposed over the other of the two mixes and has an end with an oscillatory trace-line in the plane of the joint, said at least one edge being of a reduced thickness relative to the maximum thickness of said least one of the two mixes, said oscillatory trace-line extending over the full thickness of said at least one edge, and said at least one of the two mixes being free of reinforcement cords, wherein the thickness of said at least one edge is substantially uniform over the amplitude of the oscillatory trace-line.