Limited motion sheet metal universal shaft joint consists of two co-axial sheet metal plates, each plate is of essentially octagonal planform with a central square cut-out

摘要

A universal joint consists of two co-axial sheet metal plates. Each plate is of essentially octagonal planform with a central square cut-out. Four diametrically-opposed edges have bead-tube edges (3.1-6.1) for pivots (3-6) providing the link to the adjacent plate.