frame

Abstract

A rack is presented including a plurality of at least first and second frame pieces adapted to be interconnected, wherein each frame extends along a longitudinal axis. The rack includes a corner connector arranged to interconnect at least the first frame piece and the second frame piece with the longitudinal axes of the first and second interconnected frame pieces arranged obliquely to one another. The rack includes at least first and second bracing units in which, for the purpose of connecting a plurality of frame pieces, the first bracing unit is capable of bracing the first frame piece against the corner connector arranged between the first and second frame pieces to be connected, and the second bracing unit is capable of bracing the second frame piece against the corner connector obliquely to the first frame piece. Each bracing unit includes at least one tensioning element and two force transmission members.

Description

technical field [0001] The invention relates to a frame, in particular to a frame constituting a frame for a switch cabinet, which frame comprises a plurality of frame elements which can be interconnected, wherein each frame element is configured as a cylindrical hollow profile (profile) and extend along the longitudinal axis, and wherein the longitudinal axes of the two interconnected frame members are arranged obliquely towards each other. Here, the term "frame" is used to denote support structures, for example for furniture construction and especially for shelving construction, but also other support structures (e.g. bottom frames for machines, support frames for boxes, etc.) . Background technique [0002] The already mentioned switch cabinets are generally used to accommodate electrical and electronic components (eg sensors) of processing plants, machine tools or production plants etc. which are not located directly in or on the machine. Depending on the nature of the...

AI Technical Summary

Problems solved by technology

[0011] The welding process used to join the frame parts produces corrosion by burning in the region of the weld seam, which locally destroys the coating of the frame parts and may thus reduce the desired electrical conductivity and / or corrosion resistance of the frame parts sex

In addition, some coatings may adversely affect the welding process, making it necessary to free the structural components to be joined from coatings prior to the welding process.

[0012] For the purpose of avoiding corrosion or ensuring improved electrical conductivity of the frame parts, the only remaining possibility is to apply or repair a suitable coating after the welding process, which involves additional costs and increased time during the manufacturing and assembly process expenditure

[0013] Last (but not least) it should be mentioned that the disadvantages of welding are: not only high energy requirements but also expensive work protection measures for welding personnel

[0016] However, even in this embodiment, if the switchgear is moved by a crane, the problem arises of insufficient rigidity of the switchgear against deformation, so that it may be necessary to provide additional elements in order to ensure sufficient stability of the frame

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