PNEUMATIC TYRE Russian patent published in 2015 - IPC B60C11/11 B60C11/04 B60C11/13 

FIELD: automotive industry.

SUBSTANCE: pneumatic tire contains circumferential main and cross grooves and blocks. The blocks comprise a bent groove passing along a tire circumference, separating the block into two parts along the tire width, and arranged so that the directions of bend of bent grooves alternately change to opposite ones. In the first version blocks comprise the bent groove. In the second version the main grooves which pass along the tire circumference, one row which is the central contact section and two contact sections of the left and right arm zones. Cross grooves are inclined cross grooves which pass at the pre-set inclination angle with reference to the direction along the tire circumference. The central contact section is separated into a set of blocks due to crossing of the cross groove.

EFFECT: improvement of operational characteristics for snow-covered and wet road movement.

22 cl, 6 dwg