The present invention relates to a tyre (1) having a tread (2) with a central annular portion (L1) and two shoulder annular portions (L2); the central annular portion (L1) comprises at least one circumferential crown groove (5, 6, 7) and is separated from each shoulder annular portion (L2) by a respective circumferential shoulder groove (3, 4); - at least one of said circumferential shoulder and/or crown grooves (3, 4, 5, 6, 7) has a plurality of protrusions (50) having a height (hi) equal to or smaller than a depth (H) of said at least one circumferential shoulder and/or crown groove (3, 4, 5, 6, 7) and a lateral surface substantially extending in a radial direction; - said plurality of protrusions (50) further having a plurality of channels (19) substantially extending in a radial direction and comprising at least one opening in said lateral surface for setting said circumferential shoulder and/or crown groove (3, 4, 5, 6, 7) in fluid communication with the outside of the tread.
TYRE FOR HEAVY LOAD VEHICLE WHEELS
REIFEN FÜR SCHWERLASTFAHRZEUGRÄDER
PNEU POUR ROUES DE VÉHICULES POIDS LOURD
2019-02-20
Patent
Elektronische Ressource
Englisch
IPC: | B60C VEHICLE TYRES , Fahrzeugreifen |