TIRE Russian patent published in 2020 - IPC B60C11/12 B60C11/03 

FIELD: automotive industry.

SUBSTANCE: tire 1 includes tread 2 equipped with first main groove 3 and second main groove 4, each of which passes in zigzag manner and area 10 of contact with soil, determined between them. Area 10 of contact with soil is equipped with lengthwise lamella 15, passing in zigzag manner in longitudinal direction of tire, first transverse grooves 16 and second transverse grooves 17. Area 10 of contact with soil includes first units 21 separated by lengthwise lamella 15 and first transverse grooves 16, and second blocks 22 separated by lengthwise lamella 15 and second transverse grooves 17. Each of first blocks 21 and second blocks 22 is equipped with at least three transversal lamels 25, passing along the whole width of each of first blocks 21 and second blocks 22.

EFFECT: technical result is improvement of performance characteristics on ice-covered road surface.

9 cl, 6 dwg, 1 tbl