Supports: cabinet structure – Knockdown or setup type – Skeletal frame
Reexamination Certificate
1999-04-16
2001-02-20
Cuomo, Peter M. (Department: 3624)
Supports: cabinet structure
Knockdown or setup type
Skeletal frame
C312S265600, C312S265500
Reexamination Certificate
active
06189988
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
This invention relates to with a switching cabinet with wall elements having side walls, a back wall, a bottom and a cover side and with frame pieces which are formed at least in part by multiple beveling of the wall elements in the inside space of the switching cabinet, so that the sections formed by beveling have a section running inclined or parallel at a distance from the corresponding wall element.
2. Description of Prior Art
A switching cabinet of this type is known from German Patent Reference DE 37 31 547 C3. In this switching cabinet of the art, by multiple beveling, frame sections are formed on the side walls, back wall, bottom side and/or cover; these have two sections which are perpendicular to one another, directed toward the inside space of the body of the cabinet and thus provide possibilities of adding to the depth, width and height of the body of the cabinet. In addition, by the beveling on the open sides of the body of the cabinet, standing-away sealing struts are formed which facilitate and improve connection between the body of the cabinet and the back wall or the doors of the cabinet. Frequently, additional mounting is desirable in the inside space of the switching cabinet.
SUMMARY OF THE INVENTION
One object of this invention is to provide a switching cabinet of the type described at the outset, which provides additional mounting capabilities with as simple construction as possible.
This object is achieved with the characteristics described in the claims. Inclined or parallel sections of two wall elements that are perpendicular to one another and border one another or of a wall element and another part of the frame of the switching cabinet are arranged in such a way with respect to one another that they form a deepened inside receptacle in the inside space of the switching cabinet.
The deepened inside receptacle in the frame pieces in the inside space of the switching cabinet provides the capability to utilize the deepening itself in addition to the other sections of the frame piece present in the inside space of the switching cabinet for the introduction and laying of mounting elements, for example, cables, cable guides and other components. For example, sections parallel to the corresponding side wall provide the possibility of an additional mounting plane in addition to another section on the frame piece also directed parallel to this side wall but perpendicularly to the back wall adjoining it at a right angle.
A suitable additional mounting section, which is directed parallel to the parallel section, but is displaced with respect to it, is obtained in a simple way by connecting the inclined or parallel section with a section perpendicular to the corresponding side wall, back wall, bottom or cover side. In this way, the inside receptacle is also easily accessible.
The advantageous frame piece can be formed with only a few bevels, in such a way that the side wall, the back wall, the bottom side or the cover side of the corresponding edge of the switching cabinet is beveled first toward an intermediate section to the inside space of the switching cabinet and the inclined or parallel section is connected to the intermediate section and continues into the perpendicular section. For example, in this case, the intermediate section is bent at 135° so that it runs in the direction of the angle bisector of the corresponding switching cabinet edge. The parallel section is then formed from the intermediate section by further bending by 45° while the perpendicular section is connected to the parallel section by bending again at 90°. The connection of the parallel section to the intermediate section and of the perpendicular section to the parallel section can, however, also be achieved through other suitable transition sections.
In another embodiment for beveling the frame piece the side wall, back wall, bottom side or the cover side of the corresponding edge of the switching cabinet is first bent by 180° toward the inside as an additional piece on the inside of the side wall, back wall, bottom side or cover side and the connecting piece continues into the perpendicular section to which the inclined or parallel section is connected. With angling at 180° and the resulting double layer, the frame piece becomes strengthened and, moreover, it becomes possible to provide, through the parallel section, a connection to the parallel section of the bevelings of the neighboring other wall. In this case, for example, the inclined or parallel section continues in an intermediate section directed to the corresponding edge of the switching cabinet, so that the intermediate sections of the bevelings of the two neighboring walls are contacted with one another and can be sealed. Furthermore, there is the possibility of a continuous transition into the neighboring wall element with the measures that the two oppositely directed parallel sections forming an inner receptacle continue into one another by further beveling to form one piece. Without separate frame piece, in this way a single-piece, stable structure is achieved, for example, the side walls in combination with the back wall, creating multiple possibilities for mounting in the inner space.
The transition between the inclined or parallel sections in the region of the inner receptacle is advantageously designed in such a way that the two inclined or parallel sections forming an inner receptacle border each other with their oppositely directed regions or through a section which runs perpendicularly to the angle bisector of the corresponding switching cabinet edge or through a swallow-tail-shaped section.
Advantageously for the mounting possibilities, the inclined or parallel sections forming the inner receptacle on the one hand and the perpendicular sections on the other hand, have at least in sections rows of holes of the same or different grid.
With a design where mounting tracks are adapted to the cross-section of the inner receptacle, as seen in
FIG. 4
, which extend, in the state used, at least in sections along the length of the internal receptacles and where the mounting tracks have other fastening seats at least on their outsides directed into the inside space of the switching cabinet, there are additional capabilities for mounting, where the mounting tracks can have different grids of holes. At the same time, using the mounting tracks, a connection can be produced of the neighboring wall elements of the switching cabinet in the region of the frame piece.
If the mounting tracks have two outsides directed perpendicularly to one another, which, in the state used, are flush with the perpendicular sections of the corresponding frame piece, then an enlarged mounting surface is created in the inner space. For the assembly of the switching cabinet, the measures that vertically running frame pieces are bent down on the side walls and on the back wall and the bottom side and the cover side have vertically directed pegs, with which the frame pieces are connected. The side walls and the back wall can be connected simply with these means to the bottom side and the cover side by insertion and then can be secured. In different embodiments, one peg is secured in the inner receptacle as a result of which the wall elements can be removed simply individually subsequently and can be set in again, or two pegs are provided per frame piece, which penetrate into the hollow space or into the two hollow spaces of the frame piece, which makes simple assembly possible.
REFERENCES:
patent: 949204 (1910-02-01), Stiehl
patent: 1374868 (1921-04-01), White et al.
patent: 2522097 (1950-09-01), Cookson
patent: 2869953 (1959-01-01), Miller et al.
patent: 3297384 (1967-01-01), Buice
patent: 4265500 (1981-05-01), Berton et al.
patent: 5202818 (1993-04-01), Betsch et al.
patent: 5333950 (1994-08-01), Zachrai
patent: 5971511 (1999-10-01), Diebel et al.
patent: 3731547 (1989-03-01), None
Munch Udo
Nicolai Walter
Vogel Georg
Cuomo Peter M.
Pauley Petersen Kinne & Fejer
Rittal--Werk Rudolf Loh GmbH & Co. KG
Tran Hanh V.
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