TIRE Russian patent published in 2023 - IPC B60C11/12 

FIELD: automotive industry.

SUBSTANCE: central lug grooves (16) include at least one end open to the longitudinal groove (11). The slot (31) in the transverse direction and the longitudinal slot (32) are located on a separate side of both sides in the direction along the circumference of the tire of the central lug groove (16) of a separate pair of central lug grooves (16) adjacent in the direction along the circumference of the tire. The slot (31) in the transverse direction of the tire includes one end open for the longitudinal groove (11), for which the central lug slot (16) is open, and the other end ending inside the central running section (21). The longitudinal slot (32) includes one end open to the central lug groove (16) and the other end ending near the slot (31) in the transverse direction or communicating with the slot (31) in the transverse direction.

EFFECT: improved performance of the tire on ice and snow.

10 cl, 8 dwg