Tread with longitudinally oriented grooves (31, 41, 42) at least one is wavy (31) opening onto tread surface (10), at least one rib (21) oriented in the longitudinal direction and delimited by (31) with external cavities (311) opening to tread surface and internal cavities (312) hidden within the thickness of the tread, cavities (311) opening onto the surface (10) when new with a contour (310) having farthest-spaced endpoints A and B separated by a distance Lm, the rib (21) of width Ln having transverse sipes (5), made at a mean pitch Pi, where the length Lm of contour (310) of cavity (311) is equal to or greater than an integer multiple N of the pitch Pi times an amount at most equal to 25% of this integer multiple N of the pitch Pi, when new, N+1 transverse sipes (5) of rib (21) open into cavity (311) bordering the rib.
Tire Tread Comprising Wavy Grooves and Sipes
2021-07-29
Patent
Electronic Resource
English
IPC: | B60C VEHICLE TYRES , Fahrzeugreifen |
Tire with tread comprising an evolving tread pattern with sipes
European Patent Office | 2023
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