Tire Russian patent published in 2021 - IPC B60C11/03 B60C11/12 B60C11/13 

FIELD: car tires.

SUBSTANCE: invention relates to winter car tires. Tire includes tread 2. Tread 2 includes two main grooves 3 running continuously in the longitudinal direction of the tire, and ground contact area 10 bounded by two main grooves. Two main grooves 3 run in a zigzag pattern, with their zigzag phases coinciding with each other. Area 10 of contact with the ground is provided with longitudinal lamella 15, passing in the longitudinal direction of the tire in a zigzag manner, and the phase of its zigzag is opposite to the phases of the zigzags of two main grooves 3.

EFFECT: improved driving performance on icy/snow-covered road surfaces.

11 cl, 12 dwg, 2 tbl