Truck tire tread and truck tire

Abstract

Heavy truck tire tread having a longitudinal direction, a transverse direction and a thickness direction, said tread having a ground engaging surface and comprising a series of similar tread features repeated along its longitudinal direction, each tread feature comprising: two ducts extending from the ground-engaging surface in the thickness direction, said ducts being apart one from the other and having a duct section area of at least 10 mm2 and a length comprised between 50% and 100% of a thickness of said tread; one void being in fluidic connection with said two ducts, said void extending substantially parallel to the ground-engaging surface of the tread and at a distance therefrom and having a void section area of at least 10 mm; and one sipe joining said two ducts and said void; wherein said feature is otherwise blind and said series comprises 50 of said similar tread features.

Dependencies are inferred from the claim text.