CROWN REINFORCEMENT FOR A RADIAL TYRE

摘要

A tire includes a radial carcass reinforcement surmounted radially by a crown reinforcement including a working reinforcement having two working crown plies of calendered inextensible metallic reinforcement elements and rubber mix. The reinforcement elements are parallel to each other within each ply and are crossed from one ply to the next, forming with the circumferential direction respective angles alpha1 and alpha2 of between 10° and 45°. The working crown plies have respective axial widths L1 and L2. The tire also includes a protective ply of metallic reinforcement elements with an axial width L3 such that L2