Base or mounting frame for an electrical enclosure or a rack

Abstract

A base or a mounting frame for an electrical enclosure or a rack, includes mounting pieces which are arranged, as corner pieces, in the corner regions of a rectangle or square that extends in an x-y plane. The mounting pieces are produced in a respective shaping process and include first and second mounting faces which lie outside with respect to the rectangle or square, which extend in the x direction and in the y direction at a right angle thereto and which extend in a space direction z at a right angle to the x-y plane. Sections of a system of covers are brought into contact with the mounting faces, where the covers having lateral covers with cover walls that are flat on the exterior and that have reinforcing ribs extending longitudinally on the interior, and are fastened to receiving structures of the mounting pieces by connecting structure.

The invention claimed is: 
     
       1. A socket or a mounting frame for a switchgear cabinet or a rack, comprising:
 mounting pieces which are arranged, as corner pieces, in the corner regions of a rectangle that extends in an x-y plane, 
 said mounting pieces being produced in a respective shaping process and comprising first and second mounting faces which lie outside with respect to the rectangle, which extend in the x direction and in the y direction at a right angle thereto and which extend in a space direction z at a right angle to the x-y plane, 
 wherein sections of a system of covers are brought into contact with the mounting faces, said covers having lateral covers with cover walls that are flat on the exterior and that have reinforcing ribs extending longitudinally on the interior so that other individuals stiffening ribs are not required, and being fastened to receiving structures of the mounting pieces by connecting means, 
 wherein the reinforcing ribs of the lateral covers also function as cover fastening elements formed onto the interior of the lateral covers by which the lateral covers are fastened to the receiving structures of the mounting pieces by means of said cover fastening elements, 
 wherein the cover fastening elements extend in longitudinal direction of the lateral covers on an interior of the cover wall, 
 wherein the cover fastening elements protrude perpendicularly from the interior of the cover wall to form reinforcing elements and that the lateral covers are made of metal or of plastics in an extrusion process. 
 
     
     
       2. The socket or mounting frame of  claim 1 , wherein the cover fastening elements are formed as clip elements or locking elements having a flat insert slope and a steep locking step and are engaged by means of resilient deflection, with respectively adapted receiving structures at the mounting faces of the mounting pieces, extending between the mounting pieces and mounted thereto with their end sections, to fix the lateral covers, wherein the cover fastening elements and/or the receiving structures are resiliently deflected. 
     
     
       3. The socket or mounting frame of  claim 2 , further comprising a mounting rail or C-rail as an intermediate element. 
     
     
       4. The socket or mounting frame of  claim 1 , wherein the system of covers also includes corner covers which are configured to cover the outer corner regions of the mounting pieces. 
     
     
       5. The socket or mounting frame of  claim 4 , wherein the corner covers are provided with corner cover fastening elements formed onto the interior thereof by which they can be fastened directly or indirectly to associated receiving structures of the mounting piece. 
     
     
       6. The socket or mounting frame of  claim 4 , wherein the corner covers are made of metal and are provided with reinforcing structures formed onto the interior of plate-shaped corner cover walls thereof. 
     
     
       7. The socket or mounting frame of  claim 4 , wherein the corner covers are made of plastics and are provided with reinforcing structures formed onto the interior of plate-shaped corner cover walls thereof. 
     
     
       8. The socket or mounting frame of  claim 5 , wherein the corner covers, in order to achieve at a smooth transition from an exterior thereof to the exterior of the lateral covers, comprise end sections overlapping facing end sections of the lateral covers, which are inwardly offset by the thickness of the cover wall in a z shaped manner. 
     
     
       9. The socket or mounting frame of  claim 1 , wherein the receiving structures of the mounting pieces comprise receiving chambers running parallel to the relevant mounting face, which are at least partly surrounded by wall sections running in their orientation direction and which are open at their front ends facing away from each other, and/or that the receiving structures comprise receiving ribs, receiving grooves, receiving bars, other protrusions or other depressions and that at least a proportion of the receiving structures is provided with fastening means which can be engaged with the covers and/or with intermediate elements extending between the mounting pieces. 
     
     
       10. The socket or mounting frame of  claim 9 , wherein the fastening means comprises locking means formed on the receiving structures. 
     
     
       11. The socket or mounting frame of  claim 1 , wherein the mounting pieces terminate in z direction in a first and a second base face oriented in the x-y plane, the second base face being parallel and spaced apart from the first base face by a distance, both forming the outer face of at least a first and at least a second base wall section, and that the mounting faces are spaced apart from another at their ends facing towards another and form a first corner space in the relevant first virtual corner region of the mounting piece which can be covered with the covers of the system. 
     
     
       12. The socket or mounting frame of  claim 11 , wherein further wall sections are coupled to the interior of the ends of the first and second mounting face, which ends are facing away from another, said wall sections being integrally connected and leave a second corner space between their ends facing towards another, which is confined in z direction by the first and the second base wall section. 
     
     
       13. The socket or mounting frame of  claim 1 , wherein, for producing a frame of double or multiple height, two or more mounting pieces are respectively arranged in the corner regions in z direction and are connected to another.