WINTER TIRE Russian patent published in 2013 - IPC B60C11/11 B60C11/117 B60C11/12 

FIELD: transport.

SUBSTANCE: invention relates to automotive industry, namely, to winter tire tread pattern. Proposed tire comprises tread with circular central region wherein blocks are located as symmetric pattern on opposite sides of circular equatorial plane of the tire. Said blocks located in symmetry on opposite sides of said central plane comprises multiple spaced apart and extending across wavy segments. Separate pairs of adjacent segments are connected by one or several circular grooves. Wavy segments comprise areas of variable depth and one or more deeper area and one or more areas not that deep. Aforesaid circular groove connecting the pair of adjacent wavy segments on opposite ends of the groove cross wavy segments in areas not deep.

EFFECT: better tread adhesion in winter.

15 cl, 11 dwg