WINTER TIRE Russian patent published in 2018 - IPC B60C11/12 

FIELD: transportation.

SUBSTANCE: invention relates to the automotive industry. Winter tire (1) has the tread band (2) with plurality of blocks (5). Each of the blocks (5) comprises at least one slit-shaped drainage groove (6), which, in the corresponding block (5), defines the two adjacent block parts (9, 10) boundaries, at that, each of the block parts (9, 10) has facing the slit-shaped drainage groove (6) corresponding surface. Such surface comprises the radially outer portion (61) having the substantially wavy profile, radially inner portion (62), and also having a profile, which is substantially wavy, and the intermediate portion (63), located between the radially outer portion (61), and the radially inner portion (62), and having the substantially rectilinear profile.

EFFECT: technical result is the possibility of the optimal performance characteristics obtaining when driving both on snow-covered roads and on dry and wet roads under certain conditions of use, in particular, during the high-powered vehicles acceleration, braking or turning.

22 cl, 6 dwg