US 2020/0347923 A1 · CLINCH PULLEY STUD

Abstract

A clinch pulley stud for mounting a pulley wheel to a plate is disclosed. The clinch pulley stud, the pulley wheel, and the plate may be assembled together using a cold forming process. The clinch pulley stud may have a relatively larger diameter head, a cylindrical shank which acts as the stub shaft for the pulley wheel, wherein an end of the cylindrical shank being remote from the head and being connected to a smaller diameter shank via a shoulder. The shoulder may be flat and/or include an annual groove into which the plate may be deformed. The clinch pulley stud may also include a threaded shaft extending beyond the smaller diameter shank. To resist rotation after the clinch pulley stud is cold formed to the plate, the clinch pulley stud includes one or more splines, ribs, studs, or flat facets on the shoulder or on the narrow shank against which the plate is cold formed.

Claims20

Dependent claims

A pulley stud assembly comprising:

a pulley stud extending along a longitudinal axis, a pulley wheel, and a metal plate, the pulley stud having a head of an enlarged diameter relative to a cylindrical shank extending from the head, the pulley wheel disposed about a pulley surface of the cylindrical shank, between the plate and the head of the pulley stud, the pulley stud further comprising a clinching section extending from a shoulder of the cylindrical shank along the longitudinal axis, away from the head, and extending into a threaded shaft,
wherein the clinching section is configured to inhibit rotation of the pulley stud when fastened to the metal plate, and
wherein the metal plate has an aperture and edges surrounding the aperture, the edges of the aperture are at least partly deformed around the clinching section of the pulley stud when the pulley stud is mounted thereto.

Dependencies are inferred from the claim text.

Clinch pulley stud

Life of this patent

Clinch pulley stud

Life of this patent

Abstract

Claims20