PNEUMATIC TIRE Russian patent published in 2012 - IPC B60C11/04 B60C11/11 B60C11/12 

FIELD: transport.

SUBSTANCE: invention relates to automotive industry. Tire crown 16 has central row 30 of blocks and second rows 32A, 32B arranged on both sides from said central row over the tire width. Central grooves 24P, 24Q of grouser are arranged in central row 30 with alternating directions of inclination relative to direction over tire width. End sections 25P of central groove rear end side of grouser in contact with soil are located in blocks 33.B of second row of blocks 32B while end sections 25Q of rear end side of central groove 24P in contact with soil are located in blocks 33 of second row 32A of blocks.

EFFECT: improved tire performances on ice and snow.

3 cl, 1 dwg