Patent ID: 7703493
Filing Date: 2010-04-27
Classification: B60C,Y10T

Abstract:
1. A tyre adapted for extended-mobility travel, comprising at least one carcass-type reinforcement structure anchored at each side of said tyre in a bead the base of which is configured to be mounted on a rim seat; said beads extending substantially radially externally and joining inner and outer sidewalls, respectively, said inner sidewall arranged to be positioned to the inside of a vehicle, the outer sidewall arranged to be positioned to the outside of the vehicle; the inner and outer sidewalls extending radially outwardly and joining a reinforced crown having a tread; the carcass-type reinforcement structure extending from said beads towards respective inner and outer sidewalls, each of the beads comprising an anchoring zone in which the reinforcement structure is held; said inner sidewalls being reinforced by an inner insert, and the outer sidewall being reinforced by an outer insert, said inner and outer inserts being formed of rubber composition; wherein each sidewall bears a load corresponding to a respective part of the vehicle when the tyre inflation pressure is substantially reduced or zero; the inner sidewall having a substantially higher modulus of extension than the outer sidewall; one of the inner and outer inserts comprising at least one zone, and the other of the inner and outer inserts comprising a plurality of zones the number of which being greater than that of said one insert; wherein at least two zones of said other insert have different respective modulii of extension.