Patent ID: 7281557

Claim:
A tire comprising a reinforced crown, at least one carcass-type reinforcement structure extending circumferentially and anchored on each side of the tire in a bead whose base is intended to be fitted on a rim seat, each bead extended radially towards the outside by a sidewall, the sidewall meeting up radially towards the outside with a tread and comprising at least one substantially resilient circumferential cord disposed in the substantially median portion of said sidewall, each of the beads comprising furthermore an anchoring zone in which the carcass-type reinforcement structure is retained, said carcass-type reinforcement structure including a ply of carcass cords wherein a portion of each carcass cord is disposed in a sidewall and extends from a respective bead to the crown, the carcass cords arranged in such a way that, on the one hand, in a substantially median zone of the sidewall, the immediately adjacent carcass cords of said ply exhibit different respective axial positions over the circumference, so as to form in the sidewall zone a succession of substantially regular undulations forming an undulating circumferential profile, and on the other hand, outside the sidewall zone, all cords of said ply exhibit substantially identical respective axial positions, the sidewall zone having a radially outer border spaced radially inwardly from the crown and a radially inner border spaced radially outwardly from the respective bead.