The tread has a wearable thickness of material EMU and has raised elements delimited by grooves. Each solid part has a contact face and a cavity with a depth greater than 50% of the wearable thickness. Each cavity opens onto the contact face when new and is delimited by a wall surface and a bottom surface. Each wall surface deliminates a cavity that intersects the contact face along a corner edge contour that has a geometry that has a major axis which is at least 1.5 times the length of a minor axis when new. For any tread surface down to a predefined wear level, the level is at most 30% of the wearable thickness of material EMU, and the angle between the major axis and the circumferential direction is between 0 and 40 degrees. After the wear level, the angle is greater than 40 degrees.
BANDE DE ROULEMENT COMPORTANT DES CREUX POUR PNEU D'ENGIN DE GÉNIE CIVIL
TREAD COMPRISING VOIDS FOR CIVIL ENGINEERING VEHICLE TYRE
PROFIL MIT HOHLRÄUMEN FÜR REIFEN EINES TIEFBAUFAHRZEUGES
2018-02-28
Patent
Electronic Resource
French
IPC: | B60C VEHICLE TYRES , Fahrzeugreifen |
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