Crown of a tire for a heavy vehicle of construction plant type is desensitized to attacks. The tire includes a tread (2) having a degree of surface siping TL, expressed in m/m2, equal to the ratio between the cumulative length LD of the cuts (21) and the area A of the radially outer surface (23) of the tread (2), and a protective reinforcement (4) having at least two protective layers (41, 42) that are formed of elastic metallic reinforcers and have a maximum breaking strength Rmax, expressed in daN/m, such that the degree of surface siping TL of the tread (2) is at least equal to 3 m/m2 and a coupling ratio C, equal to the ratio between the maximum breaking strength Rmax and the degree of surface siping TL, is at least equal to 30000 daN.


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    Title :

    SOMMET DE PNEUMATIQUE POUR VEHICULE LOURD DE TYPE GENIE CIVIL


    Contributors:

    Publication date :

    2017-12-22


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    French


    Classification :

    IPC:    B60C VEHICLE TYRES , Fahrzeugreifen



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