Tyre stud

Abstract

The stud consists of two elements: the body and the shank; the body consists of three composite parts: the head, the neck, and the base; the shank is located above the end surface of the head; the cross-section of the shank has a complex configuration, with six projections facing in different directions; the head of the body is round; the head has a rounded transition from the side to the end surface; the neck is cylindrical, with a diameter smaller than the head; the transition from the head to the neck of is shaped like an inward-slanted step; the neck smoothly merges with the head and the base, which has a larger surface area than the head; the base is rounded; its side surface is smooth and beveled inward relative to the lower surface; inside the lower surface is a conical protrusion consisting of eight segments and concave inward into the base.

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