PNEUMATIC TIRE Russian patent published in 2014 - IPC B60C11/12 

FIELD: transport.

SUBSTANCE: pneumatic tire includes tread section which contains ring grooves (2-4) running in circular direction of tire, as well as lateral grooves (5, 6) running in direction of tire width, and multiple road-contacting blocks (7), separated by ring and lateral grooves. Each of road-contacting blocks contains lamellae (8), which run from tread running surface inside blocks to specified depth in radial direction of tire, herewith, each one of lamellae has end section communicating with at least any one of ring and lateral grooves. At least one of multiple lamellae contains widening ring-shaped section on its inner end in radial direction of tire. Herewith, the widening ring-shaped section is increased in its diameter gradually and smoothly running to side walls of road-contacting block.

EFFECT: creation of pneumatic tire with high drainage effect, as well as prevention of tearing lamella in tire tread.

9 cl, 12 dwg, 1 tbl