PNEUMATIC TIRE Russian patent published in 2020 - IPC B60C11/13 B60C11/03 

FIELD: machine building.

SUBSTANCE: invention relates to the automotive industry. Pneumatic tire (1) comprises multiple longitudinal main grooves (10), multiple ground engaging grooves (20) and multiple blocks (30). Raised lower parts (40) are formed on bottoms (44) of grooves of shoulder longitudinal main grooves (13), which are longitudinal main grooves (10) of plurality of longitudinal main grooves (10) located in extreme position outside in transverse direction of tire, and shoulder engaging grooves (23), which are engaging grooves (20) from a plurality of engaging grooves (20) located outside from shoulder longitudinal main grooves (13) in the tire transverse direction and connected to the shoulder main longitudinal grooves (13) from the outer sides in tire transverse direction. Raised lower parts (40) are formed with elimination of at least crossing sections (50), in which shoulder longitudinal main grooves (13) and shoulder ground engaging grooves (23) intersect.

EFFECT: technical result is reduction in rolling resistance and noise while maintaining adhesion on snow.

11 cl, 11 dwg