Supports: cabinet structure – For particular electrical device or component
Patent
1999-05-14
2000-08-15
Cuomo, Peter M.
Supports: cabinet structure
For particular electrical device or component
312229, A47B 8106
Patent
active
061024988
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
1. Field of the Invention
This invention relates to a rack for a switching cabinet which can be enclosed by side walls, at least one door and a lid and which has a lower frame and an upper frame that can be connected by vertically extending frame profiles, wherein the upper frame has longitudinal struts and lateral struts running horizontally and the struts have runoff channels so that water running off the lid can be collected and drained.
2. Description of Prior Art
Such a rack is known from European Patent Reference EP 0 402 276. With such racks, the upper frame consists of two struts, respectively. These are in the form of hollow profile sections which are connected at their ends at a right angle. For the connection, there is a corner-connecting part to which the struts can be screwed. The corner-connecting part has a receptacle element which is open to the outside and into which a second corner-connecting part can be introduced. At the second corner-connecting part, the vertical frame profile is secured. The runoff channels of the struts direct the collected water up to the corner connections where it is distributed across the individual corner-connecting parts and then runs downward in an uncontrolled manner along the vertical frame profile or the associated side walls.
The two corner-connecting parts must be carefully sealed with respect to each other and with respect to the struts in order to prevent water from reaching an interior of the switching cabinet.
SUMMARY OF THE INVENTION
It is one object of this invention to provide a rack of the initially mentioned type which simply permits controlled drainage of the accumulating water from the corner area of the upper frame.
In accordance with this invention, this object is achieved with runoff channels of adjacent struts brought together in the corner area of the rack and directed to a flume of the vertical frame profile.
The runoff channels meet in the corner areas of the upper frame, so that specific areas for diverting the water are created. Thus the corner connection between the abutting struts as well as the frame profiles can be separated from the water-channeling area. A high degree of operational safety is achieved since the sealing surfaces are no longer exposed to water. A flume of the vertical frame profile directs the water downward.
According to an advantageous embodiment of this invention, the struts have a sealing flange against which the cover is tightly placed wherein the sealing flanges meet to form a surrounding sealing frame at the corners of the sealing frame and wherein downward directed outer walls connect to the sealing flanges which support the runoff channel. The runoff channels of the individual struts extend across the entire periphery of the upper frame. The water can be diverted to the vertical frame profiles only in the corner areas of the upper frame.
In one preferred embodiment of this invention the runoff channels are in a form of strip-like elements which are connected on one broad side to the struts. The runoff channels meet in the corner area of the upper frame at a point where they are connected to the struts and wherein the runoff channels feed at their ends into the flume. At that point, the struts abut directly against one another without the insertion of a corner-connecting part. Thus, the runoff channels also meet. From this point, the introduction into the flume can easily take place.
The feed into the flume may simply be such that the runoff channels formed from the strip-like elements have at their front faces in the corner area of the upper frame a cut-out area. Here, the cut-out areas form the feed.
For the formation of a flume, the vertical frame profiles, at their outer surface facing away from the interior space of the rack, can have a profiled external receptacle element. This external receptacle element is covered by the side walls or the cabinet door. Here, the external receptacle element serves as a flume which cannot be viewed from the outside. Additional parts, su
REFERENCES:
patent: 3028206 (1962-04-01), Smith
patent: 4691970 (1987-09-01), Neri
patent: 5801331 (1998-09-01), Zachrai
Kohler Martina
Reuter Wolfgang
Anderson Jerry A.
Cuomo Peter M.
Rittal--Werk Rudolf Loh GmbH & Co. KG
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