REIFEN MIT EINER MIT DEM RILLENGRUND BÜNDIG ABSCHLIESSENDEN LAUFFLÄCHENUNTERSCHICHT UND IN DIE LAUFFLÄCHE INTEGRIERTEN VERSTÄRKUNGSELEMENTEN AUS HOCHMODULKAUTSCHUK

摘要

A tyre having a tread (6) comprising a plurality of grooves (62) oriented essentially circumferentially, each groove (62) having a groove bottom (620), the tread (6) consisting mainly of at least one rubber mixture having a given rigidity M, a sub-layer (7) arranged radially outside the crown reinforcement (5) and radially inside the tread (6), the sub-layer being flush with each groove bottom (620), the sub-layer consisting of at least one rubber mixture having a given rigidity A, each of the grooves (62) being bordered axially to either side by a wedge-shaped reinforcing element (81), the tip of which points outwards, each reinforcing element (81) consisting of a rubber mixture having a given rigidity B, having a covering layer (80) arranged radially on the sub-layer (7) and axially covering the sub-layer (7) between the reinforcing elements (81) except in the grooves (62), said covering layer (80) consisting of the same material as the material of the reinforcing elements (81), the rigidities satisfying the following inequalities: A < M < B.