Supports: cabinet structure – Knockdown or setup type – Skeletal frame
Patent
1996-10-09
2000-03-21
Cuomo, Peter M.
Supports: cabinet structure
Knockdown or setup type
Skeletal frame
3122654, 211189, A47B 4700
Patent
active
06039420&
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
This invention relates to a rack made of horizontal and vertical frame legs forming a front and rear frame, wherein the frames are connected with each other by depth struts in corner areas of the frames.
In a plurality of racks the frame legs and the depth struts are made from the same profiled strand or the same hollow profiled section. Additional comer connectors are required for assembling the rack, which are inserted with plug shoulders into plug receivers of the frame legs and depth struts. These comer connectors are specially manufactured elements which considerably increase the outlay for the rack. The frame legs themselves are provided in this case with fasteners for assembly rails, components and the like, which again makes their production more expensive. Often such fastening openings distributed over the entire length of the frame legs are not necessary at all.
SUMMARY OF THE INVENTION
It is one object of this invention to provide a rack of the general type mentioned above, which can be rapidly assembled with a few simple, preferably commercially available elements, without having to do without the application of assembly rails, components or the like on the vertical and horizontal frame legs.
This object is attained in accordance with one preferred embodiment of this invention wherein the horizontal and vertical frame legs of the frames are embodied as extruded profiled sections with fastening grooves and screw sockets formed continuously on or in them. The depth struts are embodied as angled profiled sections with legs at right angles to each other. The frame legs which meet each other at the corners are bolted together with the legs of the depth struts by means of fastening screws.
Only one extruded profiled piece is required for this rack, from which the horizontal and vertical frame legs are cut. These extruded profiled sections have integrally formed screw sockets and fastening grooves. The depth struts are cut from a commercially available angled profile piece and simply bolted together with the horizontal and vertical frame legs. The fastening grooves are preferably undercut, so that the fastening means can be securely received. In this way a fastening capability is provided over the entire length of the frame legs, for example for fastening flanges, slide rails, telescoping rails and the like, so that component supports, housings and the like can be installed in the rack.
If the depth struts are covered at the connecting areas with the frame legs by corner pieces or over their entire length by corner strips having a triangular cross section and by filling the space between the legs of the depth struts, then the rack can be cleanly covered in the area of the depth struts.
The connecting points on the frame legs are preferably positioned in such a way that the screw sockets are disposed inside of the external contour of the frame legs, which are generally rectangular in cross section.
A unique connection secure against rotation between the depth struts and the frame legs results because the frame legs have at least two screw sockets extending parallel at a distance from each other, which receive the fastening screws inserted through bores of the legs of the depth struts.
A flush border can be achieved between the front and the back of the rack because the legs of the depth struts and the corner pieces or corner strips end flush with the adjoining front or rear narrow exterior sides of the frames.
The clean border of the rack toward the outside is enhanced with the legs of the depth struts with the free longitudinal edges terminating flush with the wide exterior sides of the frame legs. The corner pieces or the corner strips preferably have a triangular cross section in this case.
If the depth struts, the corner pieces and/or the corner strips project past the front and/or back of the rack, it is possible to install a door on the front and/or back of the rack.
So that a circumferential closure can be achieved, the depth struts, the comer pieces and/or the co
REFERENCES:
patent: 3265419 (1966-08-01), Durnbaugh et al.
patent: 3275394 (1966-09-01), Massinger
patent: 4512591 (1985-04-01), Plante
patent: 4621879 (1986-11-01), Schneider
patent: 4782637 (1988-11-01), Eriksson et al.
patent: 5046791 (1991-09-01), Kooiman
patent: 5202818 (1993-04-01), Betsch et al.
patent: 5312005 (1994-05-01), Odell
patent: 5333950 (1994-08-01), Zachnai
patent: 5498073 (1996-03-01), Charbonneau et al.
patent: 5513759 (1996-05-01), Besserer et al.
patent: 5516225 (1996-05-01), Kvols
patent: 5749476 (1998-05-01), Besserer et al.
patent: 5772296 (1998-06-01), Hartel et al.
Besserer Horst
Hartel Marc
Zachrai Jurgen
Cuomo Peter M.
Hansen James O.
Rittal--Werk Rudolf Loh GmbH & Co. KG
LandOfFree
Frame for a switchgear cabinet does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Frame for a switchgear cabinet, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Frame for a switchgear cabinet will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-724883