US Patent 10376047 Furniture frame system

A furniture frame system comprises a first sheet metal beam comprising a first connector interface and a second sheet metal beam comprising a second connector. One of said first and second connector interfaces is a male connector interface, and the other of said first and second connector interfaces is a female connector interface. The female connector interface comprising a slider engagement edge. The male connector comprises a slot slider face configured to engage with and guide, or be guided by, the slider engagement edge. At least one of said slider engagement edge and said slot slider face defines a connector guide line for guiding the second connector along the abutment plane, which guide line is inclined relative to an axial end edge.