PNEUMATIC TYRE Russian patent published in 2018 - IPC B60C11/03 B60C11/117 

FIELD: motor vehicle industry.

SUBSTANCE: invention relates to automotive industry. Distances (GL1) – (GL4) from the tire centerline (CL) to first to third main grooves (11, 12, 13) and narrow groove (14) are respectively from 5 % to 20 %, from 20 % to 35 % from 55 % to 70 % and from 40 % to 60 % of the half-width TL/2 of the tire contact pattern with the ground. Each of the plurality of first ground engaging grooves (31) includes one end that reaches the edge (E) of the ground contact pattern on the inside of the vehicle, and the other end that terminates inside first rib (21). Each of the plurality of second ground engaging grooves (32) includes one end that communicates with third main groove (13) and the other end that terminates in second rib (22). Each of the plurality of third ground engaging grooves (33) includes one end that communicates with second main groove (12) and the other end that terminates in third rib (23). Each of the plurality of fourth ground engaging grooves (34) includes one end that communicates with first main groove (11) and the other end that terminates inside fourth rib (24). Each of the plurality of fifth ground engaging grooves (35) intersects narrow groove (14) and includes ends that terminate in fourth rib (24) and fifth rib (25). Each of the plurality of sixth ground engaging grooves (36) includes one end that reaches the edge E of the ground contact pattern on the outside of the vehicle, and the other end that terminates inside fifth rib (25).

EFFECT: improving the tire's wear resistance and performance on wet surfaces with improved external characteristics in the late stages of wear.

11 cl, 4 dwg, 5 tbl