Electricity: conductors and insulators – Boxes and housings – Hermetic sealed envelope type
Patent
1997-12-29
1999-08-03
Kincaid, Kristine
Electricity: conductors and insulators
Boxes and housings
Hermetic sealed envelope type
3122655, H01J 500
Patent
active
059328436
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
1. Field of the Invention
This invention relates to a switchgear cabinet with door elements, wherein the door elements can be hinged, locked and unlocked by hinge elements and closure elements at two adjoining vertical sides, wherein symmetrically with the center of a longitudinal dimension the sides have at least two sleeve-shaped connecting elements which can be used as either a hinge element or a closure element. On an interior the door elements have, symmetrically with respect to the center axis, hinge elements for hinge bolts oriented toward the respective connecting element on the hinge side, and on the closure side have counter-closure elements oriented toward the respective connecting elements.
2. Description of Prior Art
A switchgear cabinet of this type is known from Swiss Patent Reference CH 487 575. The door elements of this known switchgear cabinet can be hinged, locked and unlocked by hinge elements and closure elements at two adjoining vertical sides. On interiors, the door elements have, also symmetrically with the horizontal center axis, on the hinge side hinge elements for hinge bolts oriented toward the respective closure elements, and on the closure side counter-closure elements oriented toward the respective connecting elements.
One door element of this known switchgear cabinet closes the entire front or back. In this case the door element can be fastened on the left or the right. But it is not possible to attach the door element selectively on one of two sides of the switchgear cabinet which are placed vertically with respect to each other. The switchgear cabinet furthermore is not suited to have one of its sides closed by means of two door elements.
SUMMARY OF THE INVENTION
It is one object of this invention to provide a switchgear cabinet of the species mentioned at the outset, so that every side of the switchgear cabinet can be selectively closed by a door element extending over an entire height, or by two door elements respectively extending over half of the height.
In accordance with this invention this object is attained with a switchgear cabinet that has a rack with frame legs, wherein outer edges of the frame legs form free exterior corner areas by inclined profiled corner sections. The profiled corner areas form an obtuse angle with the joined exterior profiled sections of the frame legs. Pairs of connecting elements are attached symmetrically with respect to a horizontal center plane of the switchgear cabinet to the inclined profiled corner sections of all vertical frame legs. The two connecting elements of the pairs are each disposed on the vertical frame legs symmetrically with respect to the center planes of the upper and lower cabinet halves.
It is thus possible for two pairs of connecting elements on one vertical frame leg to utilize each side of the switchgear cabinet for attaching a door element. Furthermore, two oppositely located sides of the switchgear cabinet can also be closed by door elements. It is furthermore possible in every case to utilize two door elements for closing the upper and the lower cabinet half, in place of a door element extending over the entire height of the switchgear cabinet.
The distribution of the connecting elements on a vertical frame leg is preferably selected so that the sleeve-shaped connecting elements of the vertical frame legs have an axial dimension and are attached at a distance from the upper and lower side of the switchgear cabinet and the horizontal center plane of the switchgear cabinet.
In accordance with one embodiment, for hinging a door element the hinge elements at the door elements are embodied as axially distanced double sleeves, with receptacles for the hinge bolts correspond to the receptacles of the sleeves of the vertical frame elements used as connecting elements and receive a connecting element of a vertical frame leg between the two sleeves of the hinge elements. However, hinging can also be designed such that the hinge elements of a door element are embodied as sleeves, which adj
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patent: 5372262 (1994-12-01), Benson et al.
patent: 5536079 (1996-07-01), Kostic
patent: 5639150 (1997-06-01), Anderson et al.
Besserer Horst
Munch Udo
Neuhof Markus
Nicolai Walter
Pawlowski Adam
Kincaid Kristine
Patel Dhiru R
Rittal--Werk Rudolf Loh GmbH & Co. KG
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