Crown reinforcement for a radial tire

Abstract

A tire P, comprising a radial carcass reinforcement surmounted radially by a crown reinforcement consisting of at least one working reinforcement formed of at least two plies of calendered inextensible metallic reinforcement elements, of rubber mix, which are parallel to each other within each ply and are crossed from one ply to the next, forming with the circumferential direction angles α1 and α2 of between 10° and 45°, said working plies having axial widths L1 and L2, and of at least one supplementary ply, referred to as a protective ply, of axial width L3 such that L2<L3, L2 being the width of the working ply adjacent to the protective ply, and comprising metallic reinforcement elements. According to the invention, a layer of cohesive rubber mix GB is arranged radially to the inside of the working reinforcement, such that the axially outer end of said layer GB is at a distance from the equatorial plane greater than L1/2.

Dependencies are inferred from the claim text.