| 摘要 |
<p>A tire includes a radial carcass reinforcement surmounted by a crown reinforcement formed of at least one working reinforcement having two plies of inextensible metallic reinforcement elements, parallel to each other within each ply and crossed from one ply to the next and forming with the circumferential direction angles alpha1 and alpha2 between 10° and 45,° and at least one protective ply. The axial widths L1 and L2 of the working plies and the axial width L3 of the at least one protective ply are such that L3<L2<L1. On either side of the equatorial plane XX' of the tire is at least one additional ply of inextensible metallic reinforcement elements located in the plane of the protective ply and oriented in the same direction as the elements of the least wide working ply, which forms with the circumferential direction an angle alpha4 greater in absolute value than the angle alpha2 of the elements of the radially outer working ply by at least 5°.</p> |
