Patent ID: 8613300
Filing Date: 2013-12-24
Classification: B60C,Y10T

Abstract:
1. A tire for a vehicle carrying heavy loads delimiting an internal inflation cavity, comprising: a radial carcass reinforcement surmounted radially on the outside by a crown reinforcement, the radial carcass reinforcement being formed of a plurality of metal reinforcing elements coated in a rubber coating material, the metal reinforcing elements of the carcass reinforcement making an angle at least greater than 75° with the circumferential direction, beads to come into contact with a mounting rim, the carcass reinforcement being anchored in these beads, two sidewalls, each sidewall extending between a bead and a crown, the two sidewalls comprising a first additional reinforcement positioned either between the carcass reinforcement and the internal inflation cavity of the tire or axially on the outside of the carcass reinforcement, wherein at least one of the sidewalls comprises a second additional reinforcement, wherein the first additional reinforcement comprises a plurality of reinforcing elements of textile nature oriented at an angle at least equal to 80° and at most equal to 90° to the circumferential direction, and wherein the second additional reinforcement comprises, in the circumferential direction and in an alternating manner, a plurality of first parts and second parts, the width of the second parts, measured at the radially innermost points of the second additional reinforcement, being at least equal to 20 mm, wherein at least one of these parts comprises a plurality of reinforcing elements coated in a rubber material, these reinforcing elements being oriented in a direction close to or identical to that of the reinforcing elements of the carcass reinforcement, wherein these first and second parts having ultimate tensile strengths, that is to say forces at break per unit width of reinforcement, measured on the tire in the circumferential direction, such that the ultimate tensile strength of the second parts is lower than the ultimate tensile strength of the first parts, and wherein the first and second additional reinforcements are positioned one on each side of the carcass reinforcement.