The present invention relates to a radial tire (1) for a heavy-duty truck of the agricultural or civil engineering type, in which the protection plies (31) contain hyperelastic cords (50) which comprise filamentary elements (54) on a single layer (52). The distance between the center of each filamentary element (54) of the layer (52) and the main axis (A) of the cord is equal to half of the helix diameter Dh and is substantially constant and equal for all the metal filamentary elements (54) of the layer (52), the metal filamentary elements (54) defining an internal arch (58) of the cord, having the diameter Dv. Each metal filamentary element (54) has a diameter Df and a helix radius of curvature Rf, such that: 9 ≤ Rf / Df ≤ 30, and 1.30 ≤ Dv / Df ≤ 4.5, said hyperelastic cords being embedded in a rubber compound.
Optimized architecture of heavy-duty tires of the agricultural or civil engineering type
2022-07-14
Patent
Elektronische Ressource
Englisch
IPC: | B60C VEHICLE TYRES , Fahrzeugreifen |
Optimized architecture of a heavy-duty tire of the agricultural or civil engineering type
Europäisches Patentamt | 2022
|RUBBER COMPOSITION FOR HEAVY DUTY TIRES, AND HEAVY DUTY TIRE
Europäisches Patentamt | 2020
|Development of heavy duty truck tires
Engineering Index Backfile | 1965
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