The present application is directed to a shelving system having a coupling system comprising a tab coupler and a socket coupler, said tab coupler comprising a locking tab extending from a locking face along a locking axis and configured with a round, T-like sectioned shape; said socket coupler comprising a U-shaped locking socket projecting from a mounting face of the socket coupler along a coupler axis and configured with a U-shaped tab arresting groove; the coupling system is configurable between an unlocked position whereat the locking socket slidingly receives the locking tab so that the locking axis and the coupler axis coincide, and a locked position upon rotating one of the tab coupler and the socket coupler about the coinciding axes, entailing snugly arresting of the locking tab by the locking socket, preventing sliding displacement and axial displacement along the coinciding axes.

A modular frame assembly is disclosed. The assembly includes a plurality of supports, and at least one connector for interconnecting the supports. The connector includes a base, a plurality of legs extending outwardly from the base, each leg defining a socket having an exterior surface that has a generally constant profile throughout the length of the leg, and a member that is movable between an engaged position in which it projects interiorly of the leg, and a disengaged position in which it is flush with the exterior surface, the member being biased to the disengaged position. Additional components, such as shelf supports, mounting brackets, shelf brackets, and risers, can be included in the assembly. The modular nature of the assembly allows for a wide arrangement of structures to be created.

The invention relates to a rack for a switchgear cabinet arrangement, comprising a main frame that includes four vertical profiled struts and eight horizontal profiled struts, four of said profiled struts forming a rectangular rack frame (4) having a constant cross-section; the rack frame has a peripheral receptacle which is formed by at least two sides of the profiled struts and which is open towards an external side of the rack frame; the disclosed rack is characterized in that a rectangular additional frame is inserted into the receptacle.

A corner bracket may include a structural portion including at least one relatively rigid first material, and a sealing portion including at least one relatively elastic second material. The corner bracket may also include a first receiver including a first retainer portion configured to be coupled to an end of a first frame member, and a first sealing interface configured to provide a substantially fluid-resistant seal between a portion of the end of the first frame member and the first receiver. The corner bracket may also include a second receiver transverse to the first receiver and including a second retainer portion configured to be coupled to an end of a second frame member, and a second sealing interface configured to provide a substantially fluid-resistant seal between a portion of the end of the second frame member and the second receiver. The corner bracket may be incorporated into a cabinet frame.

A corner bracket may include a structural portion including at least one relatively rigid first material, and a sealing portion including at least one relatively elastic second material. The corner bracket may also include a first receiver including a first retainer portion configured to be coupled to an end of a first frame member, and a first sealing interface configured to provide a substantially fluid-resistant seal between a portion of the end of the first frame member and the first receiver. The corner bracket may also include a second receiver transverse to the first receiver and including a second retainer portion configured to be coupled to an end of a second frame member, and a second sealing interface configured to provide a substantially fluid-resistant seal between a portion of the end of the second frame member and the second receiver. The corner bracket may be incorporated into a cabinet frame.

The invention relates to a rack for a switchgear cabinet arrangement, comprising a main frame that includes four vertical profiled struts and eight horizontal profiled struts, four of said profiled struts forming a rectangular rack frame (4) having a constant cross-section; the rack frame has a peripheral receptacle which is formed by at least two sides of the profiled struts and which is open towards an external side of the rack frame; the disclosed rack is characterized in that a rectangular additional frame is inserted into the receptacle.

A corner bracket may include first and second retainers configured to receive respective ends of first and second frame members, such that the first and second frame members are substantially perpendicular with respect to one another. The first and second retainers may include structural and sealing portions, wherein the structural portion includes a first material and the sealing portion includes a second material, with the first material being relatively more rigid than the second material, and the second material being relatively more elastic than the first material. The corner bracket may also include first and second exterior surfaces at least partially including the second material and first and second door panel interfaces configured to provide a seal between the first and second exterior surfaces and interior surfaces of first and second door panels in a closed position. The corner bracket may be incorporated into a frame for a cabinet.

A cabinet includes a structural frame including a plurality of connecting rods and a plurality of connector modules each of which includes first and second connectors. The first connector includes two first main plate portions perpendicularly connected to each other, a first fastening hole, and a limiting indented portion. The second connector includes a second main plate portion perpendicular to the first main plate portions, a seat body connected to the second main plate portion and having a first fastening hole corresponding in position to the first fastening hole of the first connector, and a limiting protruding portion protruding from the second main plate portion and having a shape complementing with that of the limiting indented portion.

A coupling member includes: first, second, and third portions each having a flat plate-like shape; and a fillet portion. The first portion has a first side and a second side orthogonal to each other. The second portion is bent at the first side relative to the first portion, and extends to an inner surface of the first portion. The third portion is bent at the second side relative to the first portion, and extends to an inner surface of the first portion. A bend radius of an outer surface of the coupling member at the first side is equal to a bend radius of a surface of a first extending member facing the first side. A bend radius of an outer surface of the coupling member at the second side is equal to a bend radius of a surface of a second extending member facing the second side.

A corner bracket may include a structural portion including at least one relatively rigid first material, and a sealing portion including at least one relatively elastic second material. The corner bracket may also include a first receiver including a first retainer portion configured to be coupled to an end of a first frame member, and a first sealing interface configured to provide a substantially fluid-resistant seal between a portion of the end of the first frame member and the first receiver. The corner bracket may also include a second receiver transverse to the first receiver and including a second retainer portion configured to be coupled to an end of a second frame member, and a second sealing interface configured to provide a substantially fluid-resistant seal between a portion of the end of the second frame member and the second receiver. The corner bracket may be incorporated into a cabinet frame.