The invention provides for a heavy truck tire tread having a longitudinal direction, a lateral direction and a thickness direction, said tread comprising : a pair of opposing tread edges (21, 21′) spaced apart along the lateral direction; a tread region extending between the tread edges over a rolling tread width (RTW); a shoulder zone (SZ) adjacent to each tread edge of said pair of opposing tread edges and extending over a lateral length of 10% of the rolling tread width (RTW); and a center zone (CZ) defined between said shoulder zones; wherein the tread region comprises a plurality of ribs (23) separated by grooves (22), said grooves running continuously from the center zone toward each of said tread edges at a groove angle relative to the lateral direction and extending out to the respective tread edge; and wherein a shoulder zone average groove angle is greater than 45° in absolute value; the shoulder zone average groove angle is greater than a center zone average groove angle in absolute values; and the grooves are running toward the tread edges
HEAVY TRUCK TIRE TREAD AND HEAVY TRUCK TIRE
2019-01-03
Patent
Electronic Resource
English
IPC: | B60C VEHICLE TYRES , Fahrzeugreifen |