Rack for electrical equipment
First Claim
1. A rack for electrical equipment comprising:
- a base having a front, a back and opposite sides;
a pair of legs extending up from the base at opposite sides of the base, each leg being generally channel-shaped and having a web, a front flange projecting from a front edge of the web and a back flange projecting from a back edge of the web;
a cross member extending between the webs of the legs generally at the upper ends of the legs, the cross member being rigidly connected to each leg thereby to interconnect the legs for strengthening the rack;
a reinforcing strut rigidly mounted on each leg, each reinforcing strut having a web in spaced apart opposed relation with an interior face of one of the front and back flanges of the leg, said one flange and the reinforcing strut defining a box beam element strengthening said one flange;
tie means for rigidly interconnecting the cross member to the box beam element.
3 Assignments
0 Petitions
Accused Products
Abstract
A rack for electrical equipment is constructed for resistance to failure in earthquake conditions. The rack has a base and two legs extending upwardly from the base. A cross member spans between and interconnects the legs near their tops. A reinforcing strut on either the front or back flange of each leg forms, in combination with the flange a box beam element which greatly strengthens the flange of the leg. A brace attached to the underside of the cross member passes through an opening in the web of the leg and is rigidly attached to the reinforcing strut. The arrangement of the brace facilitates the mounting of EMI shielding on the rack. The rack also has a one-piece cover for closing the base of the rack.
93 Citations
39 Claims
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1. A rack for electrical equipment comprising:
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a base having a front, a back and opposite sides;
a pair of legs extending up from the base at opposite sides of the base, each leg being generally channel-shaped and having a web, a front flange projecting from a front edge of the web and a back flange projecting from a back edge of the web;a cross member extending between the webs of the legs generally at the upper ends of the legs, the cross member being rigidly connected to each leg thereby to interconnect the legs for strengthening the rack; a reinforcing strut rigidly mounted on each leg, each reinforcing strut having a web in spaced apart opposed relation with an interior face of one of the front and back flanges of the leg, said one flange and the reinforcing strut defining a box beam element strengthening said one flange; tie means for rigidly interconnecting the cross member to the box beam element. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A rack for electrical equipment comprising:
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a base having a front, a back and opposite sides; a pair of legs extending up from the base at opposite sides of the base, each leg being generally channel-shaped and having a web, a front flange projecting from a front edge of the web and a back flange projecting from a back edge of the web; a cross member extending between the webs of the legs generally at the upper ends of the legs, the cross member being generally channel-shaped and having a web, a front flange protecting from a front edge of the web and a back flange projecting from a back edge of the web, the cross member being rigidly connected to each leg thereby to interconnect the legs for strengthening the rack; a brace for each leg rigidly interconnecting the cross member to each leg, the brace having two thin edges and opposed broad sides, one of the thin edges engaging the web of the cross member, the web of each leg having an opening therein, the brace extending through the opening generally transversely over one of the front and back flanges of the leg and being rigidly connected to the leg, the brace including a first portion in generally closely spaced, parallel relation to one of the front and back flanges of the cross member and a second portion in generally non-parallel arrangement to said one flange of the cross member, the brace being butt welded to the web of the cross member along a side of the first portion facing away from said one flange of the cross member and along the second portion. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30, 31, 32, 33)
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34. A rack for electrical equipment comprising:
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a base having a front, a back and opposite sides, the base further including a bottom wall, and a back wall extending up from the bottom wall at the back of the rack; a pair of legs extending up from the base at opposite sides of the base, each leg being generally channel-shaped and having a web, a front flange projecting from a front edge of the web and a back flange projecting from a back edge of the web; a cross member extending between the webs of the legs generally at the upper ends of the legs, the cross member being generally channel-shaped and having a web, a front flange projecting from a front edge of the web and a back flange projecting from a back edge of the web, the cross member being rigidly connected to each leg thereby to interconnect the legs for strengthening the rack; tie means for rigidly interconnecting the cross member to the legs; a one-piece cover adapted to be removably fastened to the base of the rack in a position where the cover extends forward from the back wall of the base between the legs of the rack and is spaced above the bottom wall of the base to form, in combination with the back and bottom walls of the base, an enclosure; fasteners for removably fastening the cover in fixed position on the base, said fasteners being adapted to be unfastened for removing the cover from the base thereby to provide ready access to an interior of the base. - View Dependent Claims (35, 36, 37, 38, 39)
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Specification