TIRE Russian patent published in 2019 - IPC B60C11/12 

FIELD: vehicle equipment and accessories.

SUBSTANCE: invention relates to non-studded tire for movement along ice-covered and snow-covered roads. Pneumatic tire 10 comprises unit 101 of V-shaped contact section. Block 101 comprises a slot and an inclined groove inclined relative to the tire width direction. One end of the inclined groove is open to one side wall of the block in direction along the tire width. Inclined groove is a limited inclined groove 150, the other end of which ends in block 101. Slot includes connecting slot 141 communicating with limited inclined groove 150.

EFFECT: ability to provide high level of motion characteristics on icy and dry road surface and, in particular, high level of wear resistance.

8 cl, 13 dwg, 6 tbl