PNEUMATIC TIRE Russian patent published in 2013 - IPC B60C11/12 

FIELD: transport.

SUBSTANCE: invention relates to automotive industry. Proposed tire comprises blind cutout 5 made in tread surface 1 and including minor hole 2 arranged radially relative to tires, and multiple cuts 4 extending radially from said hole 2 to surface of contact with pavement. Diameter of circle inscribed into said small hole 2 exceeds the thickness of said cuts 4. Said cuts 4 are made with spinning inside with center at small hole 2, angle of spinning from top to bottom surfaces of contact with pavement makes, at least, 3-10° but not over 135°.

EFFECT: better braking performances.

20 cl, 6 dwg, 1 tbl