Static structures (e.g. – buildings) – Machine or implement
Patent
1997-05-02
1998-07-07
Canfield, Robert
Static structures (e.g., buildings)
Machine or implement
52281, 527312, 527314, 527315, 527318, 527319, 527332, E04C 332
Patent
active
057750513
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
1. Field of the Invention
This invention relates to a frame member for a switchgear cabinet frame, which has two profiled sides positioned vertically with respect to one another forming outer sides of the frame, and which is designed as a hollow profile section open towards an inner side.
2. Description of Prior Art
Frame members, designed as closed hollow profiles, are known for the frame of a switchgear cabinet frame. Closed hollow profiles are expensive to manufacture, particularly when they simply satisfy all requirements for a frame, such as accommodation for assembly over their entire length, simple connection with corner connectors, sealing of attached wall elements and doors, and the like.
Other conventional frame members for a switchgear cabinet frame designed as open hollow profiles may be easier to manufacture with a stamped and bent part, but do not easily fulfill all the requirements of a switchgear cabinet frame.
SUMMARY OF THE INVENTION
One purpose of this invention is to provide a frame member of a general type mentioned above, which, as a simply-manufactured hollow profile section, satisfies in a simple way all the requirements made of a switchgear cabinet frame.
The above object is achieved according to this invention with a frame-member that has a combination of the following features: positioned vertical with respect to one another, into a connector section positioned at an angle of 135.degree. to both profile sides, externally-open receiving grooves for seal elements, vertically and parallel with the associates profile sides, a series of attachment means, and profile sides inwardly-bent terminal sections.
The frame member designed as described above can be manufactured as a simple stamped and bent part or as an extruded section, or by profiling. The profile sides of the frame member with inwardly-bent receiving grooves offer possibilities to accommodate seal elements, which can also be designed as HF-seals. The transitional sections and the connector section provide in the region of the outer edges a receiving means in which hinge and closure elements may be housed. Symmetrically with the diagonal of the cross-section, in the terminal regions of the frame member there are two plug-in receiving means for plug-in sets of corner connectors, so that the frame can easily be assembled with the frame members and correspondingly-designed corner connectors. Both rows of attachment means form, rotated towards the inside, two attachment strips positioned vertically with respect to one another, so that components may be attached to the frame member in two directions.
The frame member of such preferred embodiment is stamped and folded from a sheet metal strip or is produced as an extruded section.
According to one preferred embodiment of this invention, the corner connectors are attached by the sections positioned vertically to and parallel with the associated profile sides, with the receiving grooves and the terminal sections, plug-in receiving means for plug-in sets of corner connectors.
The receiving grooves in the profile sides are formed by three sections respectively positioned at right angles with respect to one another.
According to another preferred embodiment, the transition from the receiving grooves to the continuing sections is so constructed that the sections positioned vertically with respect to the profile sides are formed with sections of the receiving grooves in a two-layered fashion.
Furthermore, the transitional sections and the connector section form, towards the outer edges of the hollow profile section, a receiving means for folded-over edges of wall elements or of a door.
The plug-in receiving means for the plug-in sets or the corner connectors are improved because the terminal sections stand vertically with respect to the connector section or vertically with respect to the associated profile sides.
The design of the frame member can be in the form of an open hollow profile section or a closed hollow profile section.
BRIEF DESCRIPTION OF THE
REFERENCES:
patent: 3087768 (1963-04-01), Anderson et al.
Besserer Horst
Munch Udo
Neuhof Markus
Nicolai Walter
Pawlowski Adam
Canfield Robert
Rittal--Werk Rudolf Loh GmbH & Co. KG
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