Patent ID: 7281558
Filing Date: 2007-10-16
Classification: B60C,Y10T

Abstract:
1. A tire comprising at least one carcass-type reinforcement structure anchored on each side of the tire in a bead whose base is intended to be fitted on a rim seat, each bead being extended radially towards the outside by a sidewall, the sidewalls meeting up radially towards the outside with a tread and comprising at least one sidewall support means exhibiting a substantially progressive increase in rigidity as the tire sags, disposed in the substantially median portion of said sidewalls, the carcass-type reinforcement structure extending circumferentially from the bead towards said sidewall, a crown reinforcement, each of the beads comprising furthermore an anchoring zone allowing the reinforcement structure to be retained in each of said beads, said support means comprising at least one circumferential cord arranged on the circumference in different axial positions, so as to form around the circumference a succession of substantially regular undulations forming an undulating circumferential profile.