TIRE TREAD OF VEHICLE OF INCREASED CROSS-COUNTRY CAPACITY Russian patent published in 2010 - IPC B60C11/03 

FIELD: transport.

SUBSTANCE: proposed tire tread comprises work surface with ledges and recesses. Said work surface represents central and two symmetric peripheral zones. Central zone center accommodates guide tread with grousers running from said zone toward periphery at the angle of 45°-56° and arranged at right angle to tread in peripheral zones. Width of central zone equal double width of any peripheral zone at height of ledges making 10 to 20 mm. Aforesaid tread represents a series of cuboids.

EFFECT: improved cross-country capacity, reduced damaged to landcover.

3 dwg