PNEUMATIC TYRE Russian patent published in 2018 - IPC B60C11/12 B60C11/11 

FIELD: automotive industry.

SUBSTANCE: invention relates to automotive industry. Pneumatic tire includes a tread equipped with blocks, each of which is provided with a first variable-depth lamella and a second variable-depth lamella, each of which contains both axial ends open on the block edges from both its sides in the tire axial direction. In each block, in the tire axial direction, the first variable-depth lamella shallow part is aligned, with the second variable-depth lamella deep main part. Separating the blocks transverse groove is provided with a connecting bridge, which is aligned, in the tire axial direction, with the adjacent variable-depth lamella deep main part.

EFFECT: technical result is improvement of the tire tread wear resistance without deterioration of its running characteristics on the icy road.

14 cl, 11 dwg, 2 tbl