Tire wear monitoring device
AssigneesCompagnie Generale Des Etablissements Michelin, Michelin Recherche et Technique S.A.
InventorsBenjamin QUANTINET, Damien BARDIN, Stéphanie CAMBON, Jonathan LEJEUNE
Life of this patent
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Abstract
The device for monitoring the wear of a tread during running comprises at least one internal cavity intended to form a void opening on to a tread surface after predefined partial wearing of the tread, this tread comprising a wear limit corresponding to a maximum thickness of wearable material, this device comprising a measurement well opening on to the tread surface, this measurement well having a bottom formed of a first part and of a second part which are offset from one another in the depth, these two parts of the bottom being situated at different distances with respect to the tread surface when new.
Claims8
A device for monitoring the wear of a tread during running, this tread comprising at least one internal cavity having a width and being intended to form a groove open on to a tread surface after predefined partial wearing of the tread, this tread comprising a wear limit corresponding to a maximum thickness of wearable material, this tread further comprising a maximum void depth that is greater than the wear limit so as to maintain a sufficient drainage volume, this wear monitoring device formed in the tread comprising a measurement well opening permanently on to the tread surface of the tread, this measurement well having a bottom formed of a first part and of a second part which are offset from one another in the depth and in the main direction of the cavity, the first part having a width substantially equal to the width of the cavity and a planar top surface situated at a distance D1 away from the tread surface equal to the wear limit, the second part occupying the width of the cavity and being situated at a distance D2 equal to the maximum depth of the internal cavities.
Dependencies are inferred from the claim text.