A tire for a heavy-duty vehicle of construction plant type comprises a crown reinforcement (35) radially on the inside of a tread (10) and radially on the outside of a carcass reinforcement (50). The crown reinforcement (35) comprises: at least one “low-modulus” layer (20) formed of elastic metal reinforcers having a structural elongation at least equal to 0.4%, and a total elongation at break at least equal to 3%, and a tensile elastic modulus of between 40 GPa and 130 GPa; at least one “rigid” layer (30) formed of rigid metal reinforcers, the structural elongation of which is less than or equal to 0.2% and the tensile elastic modulus of which is between 140 GPa and 200 GPa. The ratio of the breaking tension of the rigid layer to that of the low-modulus layer is greater than or equal to 1.2.
PNEUMATIQUE POUR VEHICULE LOURD DE TYPE GENIE CIVIL AVEC UNE ARMATURE SOMMET SIMPLIFIEE
TYRE FOR A HEAVY CIVIL-ENGINEERING VEHICLE WITH A SIMPLIFIED CROWN REINFORCEMENT
REIFEN FÜR EIN HOCH- UND TIEFBAU-SCHWERLASTFAHRZEUG MIT VEREINFACHTER GÜRTELVERSTÄRKUNG
2023-10-11
Patent
Electronic Resource
French
IPC: | B60C VEHICLE TYRES , Fahrzeugreifen |
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