STUD OF WINTER TIRE TREAD Russian patent published in 2020 - IPC B60C11/16 

FIELD: automotive industry.

SUBSTANCE: stud comprises an upper end protruding from the tread portion for contact with the surface, and a base including a flange lower portion provided at an end opposite to the upper end and extending radially outward, a leg portion provided between the lower portion and the upper end, and a shank connecting the leg portion and the lower portion. Base is built-in and fixed in tire tread section, in which stud is installed. Lower section has teardrop shape consisting of three flat sides and one semi-cylindrical side. Section of leg has polygonal shape, consisting of three concave sides, two convex sides and one flat side. Orientation of studs on lateral areas of tread differs from orientation of studs in central zone.

EFFECT: increased reliability of stud fastening in tire tread, and also improved performance of studs – for example, traction, durability, wear etc.

20 cl, 7 dwg