Patent ID: 6401778
Filing Date: 2002-06-11
Classification: B60C,Y10T

Abstract:
A tire with radial carcass reinforcement having a maximum axial width S0, comprising a crown reinforcement composed of at least two working plies of inextensible reinforcing elements, crossing from one ply to the next at angles of between 10Â° and 45Â° to the circumferential direction, the said working plies having axial widths equal to at least 80% of the width S0, and, arranged radially between the said working plies, an additional ply of reinforcing elements essentially parallel to the circumferential direction, characterized in that the working plies, having widths greater than the width of the additional ply by at least 16% of the width S0, on both sides of the equatorial plane and in the immediate axial extension of the additional ply, are coupled over an axial distance equal to at least 3.5% of the width S0, being then separated by a section of rubber mix at least over the remainder of the width common to the two working plies.