A tire has a tread comprising at least two tread pattern elements (MA, MB) distributed periodically in the circumferential direction at pitches (PA, PB). Each tread pattern element is formed of three portions (Z1, Z2, Z3), each defining a volumetric element of which the trailing edge corner is the one common to the tread surface and is the last to leave the contact patch in which the tire is in contact with the ground. With each trailing edge corner being chamfered, in the portions Z1 and/or Z2, and/or Z3, the widths of the chamfers of the trailing edge corners (LCiA, LCiB, i ranging from 1 to 3) ef satisfy the following inequalities: a)0.8*PAPB≤LC1ALC1B≤PAPB*1.2for the portion Z1, b)0.8*PAPB≤LC2ALC2B≤PAPB*1.2for the portion Z2, and c)0.8*PAPB≤LC3ALC3B≤PAPB*1.2for the portion Z3. Moreover, the surface void ratio TES is at least equal to 0.35 and at most equal to 0.60.
PNEUMATIQUE COMPORTANT UNE BANDE DE ROULEMENT OPTIMISÉE EN ADHÉRENCE SUR SOL SEC
TYRE HAVING A TREAD OPTIMIZED IN TERMS OF GRIP ON DRY GROUND
REIFEN MIT OPTIMIERTER LAUFFLÄCHE IN BEZUG AUF DIE HAFTUNG AUF TROCKENEM BODEN
2023-10-18
Patent
Elektronische Ressource
Französisch
IPC: | B60C VEHICLE TYRES , Fahrzeugreifen |
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