PNEUMATIC TIRE, TREAD LAYER AND TREAD BLOCK CONTAINING A SLIT-LIKE SLOT, AS WELL AS A LAMMELA PLATE FOR ITS MANUFACTURE Russian patent published in 2021 - IPC B60C11/12 

FIELD: automotive industry.

SUBSTANCE: invention relates to the automotive industry. A pneumatic tire (90), a tread layer (100) for a pneumatic tire, or a tread block (200) for a tread layer or for a pneumatic tire, which are provided with slit-like slots (21); at least some of the slit-like slots (21) are open at the upper end (TOP) with access to the surface of the tread block (200). The intersection of the slit-like slot (21) with the surface (107a, 107b), which is geometrically congruent and parallel to the surface of the tread block (200), and is located at a depth (d) measured from the surface of the tread block (200) deep into the tread block (200), forms a curved line (210). At least the first slit-like slot (21) of the slit-like slots (21) is formed so that at all depths (d) ranging from the open top (TOP) of the first slit-like slot (21) to the first transition depth (d1), the curved line (210) contains at least one bending point (22a) having an internal angle (220a) that has a radius of curvature of less than 0.3 mm. Lamella plate (43, 53, 63, 73, 83) for the manufacture of a pneumatic tire (90), a tread layer (100) or a tread block (200). Using the lamella plate (43, 53, 63, 73, 83) for the manufacture of a tread block (200), a tread layer (100) or a pneumatic tire (90).

EFFECT: improving the adherence of the pneumatic tire on the road.

15 cl, 12 dwg