The present invention relates to a tyre, of which the performance in terms of longitudinal grip on dry ground is improved. The tread is provided with at least one tread pattern block (511) having a contact face (9) intended to come into contact with the roadway while the tyre is running. The tread pattern block (511) comprises at least two axial portions. A first axial portion (51) is made up of a base material, and a second axial portion (52) is made up of a stiffer material. The ratio of the shear dynamic stiffness modulus of the material of the second portion (52) divided by that of the material of the first portion (51) is in the range [5;30]. The tread also comprises a circumferential groove (6) bordered by a channel (7), the width of which is between [3 x L52, 1.01xL52], where L52 is the axial width of the contact face of the second axial portion (52).
PNEUMATIQUE AVEC UNE BANDE DE ROULEMENT COMPORTANT DES RAINURES CIRCONFÉRENTIELLES RENFORCÉES
TYRE WITH A TREAD HAVING REINFORCED CIRCUMFERENTIAL GROOVES
REIFEN MIT EINER LAUFFLÄCHE MIT VERSTÄRKTEN UMFANGSRILLEN
2025-04-16
Patent
Electronic Resource
French
IPC: | B60C VEHICLE TYRES , Fahrzeugreifen |
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