PNEUMATIC TIRE Russian patent published in 2013 - IPC B60C11/04 B60C11/13 B60C11/03 

FIELD: transport.

SUBSTANCE: invention relates to tread pattern of motor tire. Pneumatic tire includes tread (2) with central longitudinal groove (3a), shoulder longitudinal grooves (3b) passing at both sides of central longitudinal groove (3a) and intermediate areas (4a) of ground coupling separated by central longitudinal groove (3a) shoulder longitudinal grooves (3b). Each of areas (4a) of ground coupling includes narrow grooves (5) passing from position spaced to inner side in axial direction of tire from shoulder longitudinal groove (3b); intermediate tilted grooves (6) each one of which goes tilted from narrow groove (5) towards central longitudinal groove (3a) and terminates without connection with central longitudinal groove (3a), and connecting grooves (7), interconnecting intermediate tilted grooves (7) adjacent in longitudinal direction of tire. Connecting grooves (7) are tilted relative to tire longitudinal direction in the same direction as intermediate tilted grooves (6) and at less angle than intermediate tilted grooves (6).

EFFECT: better drainage and antinoise characteristics of tire.

5 cl, 8 dwg, 1 tbl