Electricity: conductors and insulators – Overhead – Towers – poles or posts
Patent
1987-02-10
1989-01-10
Grimley, Arthur T.
Electricity: conductors and insulators
Overhead
Towers, poles or posts
174 521, 439572, H01R 13516
Patent
active
047975075
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
The present invention relates to an outlet box, provided with coaxial connectors preferably intended for mounting onto an outer wall-surface, an electrical conduit front or like surface, either separately or in conjunction with a recessed junction box.
BACKGROUND PRIOR ART
As a result of the progressively increasing use of computerized equipment, data processors and the like, more and more office locations, so-called office environments, are being fitted with coaxial outlet boxes. Depending upon the age of the building concerned, the cables leading to the outlet box are either located on outer wall-surfaces, drawn through installation conduits or trunking embodied in the walls of the building, or encased in cable ducts. Irrespective of the cable lay-out used, the coaxial cable to be connected to a coaxial terminal connector is led into a junction box, which may be either a surface mounted box or a recessed box, in which the cable is connected to a terminal connector arranged in the box cover, so as to project at right angles to the wall or the conduit front, whereafter the relevant data or terminal cable is connected to the terminal connector. Due, inter alia, to its inflexibility, the data or terminal cable, when connected, projects outwardly from the outlet box into the room in which it is fitted, thereby exposing the cable to the risk of damage as a result of heavy impacts, blows or like forces to which the cable may be inadvertently subjected when, for example, rearranging furniture in the room concerned, moving desks, chairs, tables, etc.
In order to improve to some extent the facilities for connection of data and terminal cables to the supply net, box covers have been produced which are partially accomodated in the outlet box, the box cover being provided with a center part in which the terminal connectors are located at 45.degree. to the plane of the cable inlet of the box. Although this modification has been found to be an improvement and has reduced the risk of damage to data cables connected to the outlet box, it has resulted in less space in the box for bending and manipulating the ends of the incoming coaxial cable when connecting said ends to respective terminal connectors, thereby rendering the task more difficult.
In order to provide more space within the outlet box, a further type of box cover has been proposed in which the terminal connectors are arranged on one side of a shoulder or rib which extends across the box cover and slopes at an angle of 45.degree. at said one side. Although a box cover of this construction has more internal space, difficulty is still found in bending the incoming coaxial cable for connection to the terminal connectors.
SUMMARY OF THE INVENTION
The object of the present invention is to provide an outlet box provided with coaxial connectors which can be used universally, by which is meant that the outlet box can be used either separately or in conjunction with conduit boxes, and therewith enable the terminal connectors to be located parallel with a wall or conduit front, so as to lessen the risk of damage to the cable connections to the greatest possible extent and, at the same time, to provie in the box sufficient space for bending the incoming cables along a radius which will enable the cables to be connected readily and comfortably to the terminal connectors. A further object is to provide an outlet box so constructed as to enable fibre optic cables to be connected safely to junction devices intended herefor. These objects are realized with the present invention by means of an outlet box having the features set forth hereafter.
BRIEF DESCRIPTION OF THE DRAWINGS
An embodiment of an outlet box according to the invention will now be described in more detail with reference to the accompanying drawings, in which
FIG. 1 is a perspective view of an outlet box with the cover removed;
FIG. 2 is a perspective view, schematically illustrating the base plate of an outlet box fitted to the front surface of an electric trunking section;
FIG.
REFERENCES:
patent: 2968690 (1961-01-01), Higgins
patent: 3353068 (1967-11-01), Turk
patent: 3571771 (1971-03-01), Stephanson
patent: 4370516 (1983-01-01), Bailey et al.
Grimley Arthur T.
Thorsman & Co. Aktiebolag
Tone David A.
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