Abstract: A metal connecting corner used in assembling a rack frame comprises three leg portions with each one of the leg portions of the connecting corner having three inner slots, each slot accepting a metal rail having a plurality of holes. Each slot is supported by a double-sided overlapping tapered reinforcing rib. The connecting corner further comprises a rail stop embossment which prevents each one of the rails in each one of the slots from making contact with another rail in another slot of the connecting corner. The connecting corner further comprises a corner base having four holes and a supplemental threaded hole. Each leg portion of each connecting corner has four holes which match up, and align, with the holes at each end of each of the metal rails, and a plurality of fasteners are used to secure each end of each rail in the connecting corner.

Abstract: A frame kit comprises a plurality of improved corner connectors and a plurality of rail members both having a plurality of holes, a plurality of fasteners for coupling each one of the corner connectors to one end of three rail members of the plurality of rail members and at least one set of instructions located in at least one container suitable for constructing at least one frame assembly. The frame kit may also comprise at least one of a plurality of leveling feet, a plurality of casters adapted for coupling to a portion of at least one of the corner connectors, a plurality of rib members for strengthening at least one frame assembly and a plurality of accessory members adapted to couple to at least one of the plurality of rail members. A method for assembling the frame kit and constructing at least one frame assembly is also disclosed.

Abstract: The invention pertains to a connecting corner used in assembling metal rack frame enclosures for housing a variety of equipment. A completely assembled rack frame consists of eight connecting corners, three sets of variable length rails (four identically sized rails per set), and ninety-six fasteners. The connecting corner is made of metal. The connecting corner has three legs; base (10), leg (12), and leg (14) with three inner slots; slot (42), slot (44), and slot (46). Each slot accepts two-legged metal rail (58), with industry standard, consistently repetitive hole pattern; hole (60), hole (62), hole (64), and marker (66). Each slot is supported by double-sided overlapping tapered reinforcing ribs; rib (50), rib (52), and rib (54). Rail stop embossment (48) prevents rails in slot (42), slot (44), and slot (46) from making contact with each other. There are four counter sunk holes in each leg of connecting corner.