Patent ID: 8291953
Filing Date: 2012-10-23
Classification: B60C,Y10T

Abstract:
1. A tire comprising at least one carcass-type reinforcing structure extending circumferentially from a bead to a sidewall and anchored on each side of the tire in a bead, the base of which latter is designed to be mounted on a wheel rim seat, said anchoring comprising a turning up of said carcass-type reinforcing structure around a bead core in such a way as to form, along a radially inward portion of the bead core, a turning-up portion of the reinforcing structure from a point axially inside the bead core to a point axially outside the bead core, and then extending radially outwardly from the base of said bead core in such a way as to form a turned-up section ending in an end, each bead being continued radially outwardly by a sidewall, the sidewalls meeting, in the radially outward direction, a tread, said tire also comprising at least one circumferential bielastic reinforcing element made of a bielastic fabric, in which the fabric employed is a bielastic knitted fabric, that is a stitched fabric, the loops forming the stitches of which are capable of moving relative to each other in the knitting direction and in the direction perpendicular to the knitting, said at least one bielastic reinforcing element being arranged so as to extend substantially parallel along a portion of the reinforcing structure which is situated in that region of the bead of the tire that is axially outward relative to the reinforcing structure, in the vicinity of the latter, wherein said bielastic reinforcement extends radially inwardly, from a radial position corresponding to the position of the end of the turned-up section of the reinforcing structure, over more than half of the radial distance between said end and the radially outward portion of the bead core.