Patent ID: 7503623

Claim:
A metal frame made up of the union of a plurality of extruded elements; said frame comprising a plurality of linear bars, which have a constant cross section, are obtained by extrusion, and are joined to one another by means of welding at structural nodes defined by jointing bodies, each of said jointing bodies having a number of respective pockets which are designed to house corresponding linear bars, each of said jointing bodies having a box type structure and made up of the union of a respective load-bearing elements which is substantially obtained by extrusion and has a given direction of extrusion, with at least one pair of planar metal sheets, which are set perpendicular to the direction of extrusion and are welded to the load-bearing element on opposite sides of the load-bearing element, said frame having at least one load-bearing element formed by the lateral union of a number of simple elements, each of said simple elements being obtained directly via extrusion and having a given direction of extrusion parallel to the direction of extrusion of the other simple elements, the simple elements making up a load-bearing element being joined to one another laterally by mechanical slotting means.