PNEUMATIC TIRES OF VEHICLE Russian patent published in 2019 - IPC B60C11/03 B60C11/16 

FIELD: transportation.

SUBSTANCE: present invention relates to a pneumatic tire of a vehicle having a directed tread with protrusions of a profile, for example, with rows (1, 2) of profile blocks or tapes (3) of profile, which are separated from each other by channels, for example annular channels (3), transverse channels (4), inclined channels (7), etc. Protrusions of profile are equipped with creepers (9) located in holes (8) for studs. There are shallow and elongated recesses (10, 10', 11, 11', 12, 12') made from creeper (9) in the protrusions of profile, around each creeper (9), at least in two directions (U) along the circumference (in the direction of movement during movement forward and against it), with different volumes and different lengths as pockets for collection of ice crumbs, which is formed when scratching with creeper (9) on ice. Recess (recesses) (10, 10'), which from creeper (9) in direction of movement during forward movement, has or have, in sum in case of several recesses (10, 10'), maximum volume (V₁).

EFFECT: improved operational characteristics of tire with creepers during movement on ice.

17 cl, 3 dwg