TIRE TREAD AND VULCANIZING PLATE TO FORM A 3D SLIT IN THE TIRE TREAD BLOCK Russian patent published in 2023 - IPC B60C11/12 

FIELD: winter tires.

SUBSTANCE: at least one of the blocks is provided with one or more profiled three-dimensional slots in the radial direction. The profiled slit is limited by two mutually consistent profiled surfaces - the sides of the slit formed by the plate during vulcanization. Each side of the three-dimensional slit has the shape of a repetitive sawtooth sinusoidal element inserted in the direction of the radial plane, interrupted in the radial direction at a certain interval, and replaced by a sawtooth sinusoidal surface formed from the same recurring element offset by 1/2 period, forming 3D slot-like slots, the angles of which with the radial plane are 65°±10°.

EFFECT: improved tire performance in wet, dry and snowy conditions.

6 cl, 3 dwg, 1 tbl