TREAD PROTECTION DEVICE

摘要

The invention relates to a tire having a radial carcass reinforcement including a tread (1) having a thickness E, said tread (1) having a rolling surface for making contact with a road surface and including at least one cutout (5) opening onto the rolling surface so as to form ridges (50), said cutout (5) extending into the tread up to a total depth H equal at most to the thickness E of the tread, wherein said cutout (5) is provided between the tread surface and a depth H1 equal at most to the total depth H, in the form of an incision (51) having a width D suitable for enabling same to at least partially close for routine rolling conditions of the tire. The tire further consists of, nearby, i.e. at a minimum distance from said ridge at most equal to five times the width D of the cutout, at least one ridge (50) of said cutout, and, on the rolling surface, at least one cavity (6) having a depth h that is small as compared to the depth of the cutout, i.e. at most equal to 30% of the depth H, said at least one cavity (6) reducing the compressive stiffness of the tread in the vicinity of said at least one ridge (50).