STUD PIN Russian patent published in 2020 - IPC B60C11/16 

FIELD: automotive industry.

SUBSTANCE: invention relates to the automotive industry. Stud pin 1 comprises housing 4 and rod 5 protruding from housing 4. Rod 5 has multi-stage structure, which consists of multiple steps, including at least first stage 11 protruding from housing 4, and second stage 12 protruding from first stage 11. On end surface 13a of third stage 13, which is the most distant stage of rod 5, hole 4 is made.

EFFECT: improved running characteristics provided by stud pin on ice-covered and snow-covered road surfaces.

7 cl, 12 dwg, 1 tbl