STUD AND TIRE INCLUDING SUCH STUD Russian patent published in 2023 - IPC B60C11/16 

FIELD: automotive industry.

SUBSTANCE: stud (P) includes a body portion (10) embedded in a tire tread portion, an apex portion (11) projecting from an upper side of the body portion (10), and a flange portion (12) located on the base side of the portion (10) of the body. The apex portion (11) includes a groove portion (15) on the upper surface of the apex portion (11), and the values of the total area Sx of the apex portion (11) and the area Sy of the groove portion (15) when viewed in the direction of the central axis of the portion (10) of the body, satisfy the ratio 0.20≤Sy/Sx≤0.50. The tire (T) includes a stud (P) located on a tread section (21).

EFFECT: weight reduction and improved performance on ice.

13 cl, 9 dwg, 2 tbl