BUS Russian patent published in 2023 - IPC B60C11/12 

FIELD: motor transport.

SUBSTANCE: tread pattern includes a plurality of oblique grooves that extend from the starting end in the centre region including the equatorial line of the tire towards both sides in the lateral direction of the tire. The slope angle of the oblique grooves relatively the tire circumferential direction is more than 40 degrees and 50 degrees or less in the first range, separated from the initial end by 35% or less, in the tire lateral direction is more than 50 degrees and 65 degrees or less in the second range, more than 35% and 50% or less from the start end is more than 65 degrees and 80 degrees or less in the third range separated from the start end by more than 50% and 70% or less, and is more than 80 degrees and 90 degrees or less in the fourth range separated from the start end by more than 70% and 100% or less.

EFFECT: improved performance of the tire during operation on snowy and wet road surfaces.

15 cl, 5 dwg, 1 tbl