Twin beam vehicle suspension system - is constructed from single flat plate which is deformed to form pocket at one end and folded to form rectangular cross=section

摘要

The suspension member comprises a folded single sheet of metal which is enlarged at one end to couple to a wheel assembly and U-shaped at the other end to pivotally connect with a vehicle frame. The process of constructing the suspension member comprises the steps of stamping a single sheet from a piece of stock, and deforming the sheet to form a pocket defining the enlarged end. The sheet is folded to form a rectangular cross section and the seam between adjoining edges of the folded sheet is welded. To support a spring assembly, a tube extends through the folded sheet and cooperates with the spring assembly to attach the latter to the folded sheet.