Each of at least two layers of a carcass reinforcement has a breaking force per unit width higher than 2250 daN/dm. The minimum strength per unit width, measured for an elongation of less than 10%, of a second layer of carcass reinforcement is strictly greater than a value equal to 20% of the minimum strength per unit width, measured for an elongation of less than 10%, of a first layer of carcass reinforcement. The reinforcing elements of the two layers of carcass reinforcement have a thread count of less than 750 tex. The elongation of the reinforcing elements of the second layer of carcass reinforcement is greater than 4% under a force of 20 daN, and the secant elastic modulus values under tension at 10% elongation, Mt, Mj, satisfy the relationship Mt/Mj≧1.
TIRE COMPRISING A CARCASS REINFORCEMENT MADE UP OF TWO LAYERS
2017-11-16
Patent
Electronic Resource
English
IPC: | B60C VEHICLE TYRES , Fahrzeugreifen |
Tire comprising a carcass reinforcement made up of two layers
European Patent Office | 2020
|Tire comprising a carcass reinforcement made up of two layers
European Patent Office | 2020
|TIRE COMPRISING A CARCASS REINFORCEMENT MADE UP OF TWO LAYERS
European Patent Office | 2018
|