PNEUMATIC TIRE Russian patent published in 2011 - IPC B60C11/04 B60C11/11 B60C11/12 

FIELD: transport.

SUBSTANCE: invention relates to air tire. Pneumatic tire comprises multiple main grooves 1, 2 running along tire circumference over treat surface, grouser grooves 3 alternating along tire circumference to het connected at angle between adjoining main grooves (2) made on inner side of the extreme main groove to produce lines of blocks made up of assemblage of blocks, and assemblage of slotted drain grooves 7 formed in block 5 across the tire to make directed pattern of tread. Shoulder section on said main extreme groove forms rib 6 with grouser groove ends and alternating along tire circumference and running from shoulder section end S to said extreme main groove 2 so that not to be connected with said main groove and multiple slotted drain grooves running across tire. Multiple bevels 8 with regularly changing bevel angle are arranged across tire edge, on rib inner side 6, said bevels being alternated and constant.

EFFECT: higher wear resistance, stable control in snow.

8 cl, 5 dwg