PNEUMATIC TIRE Russian patent published in 2017 - IPC B60C11/04 B60C11/11 B60C11/12 

FIELD: transportation.

SUBSTANCE: longitudinal narrow grooves (16) are placed with density of at least 0.06 groove/mm and not more than 0.2 groove/mm in transverse direction of the tire. Narrow grooves (20) in the transverse direction stretch at the angle of at least -45° and not more than +45° in respect to the transverse direction of the tire. Longitudinal narrow grooves (16) have at least one bent section. Angle of bent section bending is at least 40° and not more than 160°.

EFFECT: improved characteristics of braking and turning on ice.

17 cl, 6 dwg, 1 tbl