Framework for switchgear cabinets

Details Framework for switchgear cabinets Framework for switchgear cabinets

1997-11-18

1999-11-30

Stodola, Daniel P.

Supports: racks

Special article

Electrically powered

3122653, A47F 700, A47B 4700

Patent

active

059926465

DESCRIPTION:

BRIEF SUMMARY
BACKGROUND OF THE INVENTION

1. Field of the Invention
This invention relates to a rack made of frame legs for a switchgear cabinet, wherein the frame legs are preferably embodied mirror-reversed with respect to a cross-sectional diagonal line and have profile sides, which extend vertically with respect to exteriors of the rack, have fastening receptacles and in an area of an interior make a transition into sections which constitute a receptacle for fastening mounting rails.
2. Description of Prior Art
A rack of this type is known from German Patent Reference DE 43 36 204 A1, wherein the receptacle is bordered by sections of the frame leg which extend vertically with respect to profile sides of the frame legs and form a receptacle for mounting rails which are essentially square in cross section.
Frame legs for racks of a switchgear cabinet are known in the most varied cross-sectional shapes, as is also disclosed in German Patent References DE 40 36 664 A1, DE 41 32 803 A1, DE 81 07 658 U1 and DE 87 03 695 U1.
The frame legs in accordance with German Patent References DE 40 36 664 A1 and DE 81 07 658 U1 have receiving grooves for sealing elements on the outsides of the rack.
It is known from German Patent References DE 41 32 803 A1 and DE 87 03 695 U1 to attach connecting sections at an angle of 135.degree. to the sections constituting the exteriors of the rack, which are connected with the profile sides by profile sections extending vertically above the profile sides.
Respectively different profile sections extending parallel and vertically with respect to the profile sides forming the exterior, which are oriented toward the interior of the rack and have fastening receivers, are shown in German Patent References DE 81 07 658 U1 and DE 87 03 695 U1.
All these known racks put together from frame legs more or less meet the requirements made on a switchgear cabinet. In one case the sealed attachment of the sheathing elements on the rack is improved, while in another case the fastening opportunities on the interior of the rack are used and made easier. The beveling of the exterior edges results in a receptacle for the bevels of sheathing elements and space for hinge and locking elements.


SUMMARY OF THE INVENTION

It is one object of this invention to provide a rack of the type mentioned at the outset which, with frame legs which are easy to produce, meets requirements made on a switchgear cabinet in regard to sealed attachment of beveled sheathing elements, the creation of a sufficiently large receptacle on the exterior edges for the bevels of the sheathing elements and for the attachment of hinge and locking elements, and of the universal fastening possibilities in the area of the interior of the rack, in an optimal manner.
In accordance with one preferred embodiment of this invention, the above object is attained by a combination of the following features: connecting section which forms a beveled exterior edge of the rack; frame legs are embodied as double-layered sealing strips or as U-shaped contact strips, which are oriented vertically with respect to an exterior of the rack and with a contact section extending parallel with the associated exterior, wherein the sealing strips and the contact strips can also be of zero length; a transition into receiving sections with fastening receivers, which extend vertically with respect to the associated profile side and are bent in toward the connecting section; and transition into end sections which form an open or closed dove-tailed groove symmetrically with respect to the cross-sectional diagonal line.
It is possible to continue to produce frame legs of the rack, embodied and oriented in this way, easily and with sufficient stability, preferably with torsional stiffness, wherein the production with stamped and bent elements or as extruded profile sections offers itself.
The sealing strips can cooperate with sealing elements on the sheathing elements such that a sealed closure of the open sides of the rack is achieved. If contact strips are formed out, the contact

REFERENCES:
patent: 3087768 (1963-04-01), Anderson et al.
patent: 3265419 (1966-08-01), Durnbaugh et al.
patent: 3779177 (1973-12-01), Gigante
patent: 4782637 (1988-11-01), Eriksson et al.
patent: 4968105 (1990-11-01), Schaars
patent: 4988008 (1991-01-01), Blum et al.
patent: 5202818 (1993-04-01), Betsch et al.
patent: 5222871 (1993-06-01), Meyer et al.
patent: 5287800 (1994-02-01), Orednick
patent: 5333950 (1994-08-01), Zachrai
patent: 5380083 (1995-01-01), Jones et al.
patent: 5806946 (1998-09-01), Benner et al.
patent: 5899545 (1999-05-01), Besserer et al.

Affiliated with

Also associated with

Rating

Framework for switchgear cabinets does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Framework for switchgear cabinets, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Framework for switchgear cabinets will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1661419