Illumination – With static structure – Wall or ceiling
Patent
1989-09-06
1992-05-26
Dority, Carroll B.
Illumination
With static structure
Wall or ceiling
362150, 362248, 362404, F21S 700
Patent
active
051173409
DESCRIPTION:
BRIEF SUMMARY
The invention relates to a lighting device to be supported by the surface of a room, such as the ceiling, a wall or the floor, having a support and a bulb attached thereto and a current supply for the bulb.
German Utility Model 74 35 540 discloses a track light for spotlights, which has a closed, water-tight, elongated housing which holds supply devices for the spotlights, with supply lines leading into the housing and with supply lines extending from the housing to the outside in a water-tight manner. At least one spotlight is secured by means of a fastening bracket to the track, which has a double T profile in cross section. The track light is essentially suitable only for spotlighting; it is of little use as general room illumination, especially because it is esthetically unattractive and is virtually unusable for public reception rooms and living rooms decorated in a sophisticated manner.
A similar lighting device is known from German Utility Model 86 19 144, on which a plurality of lights operated at low voltage can be secured. This arrangement is once again not readily usable for general room lighting, for similar reasons.
The object of the invention is to devise a lighting device of the above type that is esthetically attractive and can also be used for general room lighting, in living rooms or office spaces and the like, in which an esthetically decorative appearance is important.
According to the invention, this object is attained in that the support is in the form of a plate; the current supply is attached to the plate on its side facing the room surface by which the lighting device is supported; a rigid or flexible leg is secured to and penetrates the plate; the bulb is attached to the free end of the leg.
With the embodiment according to the invention, a light is devised that can be used particularly in public reception rooms. The support plate, which in a particularly advantageous manner, may be produced from stone or stone-like material, and optionally from plastic or metal as well, can have the most various external contour; this has particular advantages when slate, granite or marble is used. The external contour can be regular, in the form of a circle, ellipse or polygon, or can be made in such a way that unneeded parts are broken off. This produces a interrupted contour, which is esthetically highly attractive.
Especially when slate, granite or marble is used, and wood as well, as an organic material, particular attention must be paid to the fastening of the electric current supply device. In accordance with a further embodiment of the invention, the current supply device elements are embedded in a cast resin body which is cast on the support plate; at least one lamp socket, for so-called indirect lighting, can be embedded in this body as well.
Accordingly, all the components that must be accommodated on the back of the support plate--that is, the side facing the ceiling, wall or floor--are secured to the support plate by the cast resin body, and the cast resin body itself can be used for retaining the support plate and thus the light on a ceiling or on a wall, so special means engaging the support plate itself, such as screw bolts penetrating the plate, can be dispensed with.
For fixation of the cast resin body to the plate, form-locking parts are suitably provided, such as cap screw bolts, for instance glued into blind bores in the plate, having their caps surrounded by the cast resin and thus received in it in a form-locking manner.
For fixation of the light to the ceiling, a cup may be provided that partly surrounds the cast resin body and includes screws that can be screwed into an encompassing groove on the cast resin body. The cup is then secured to the ceiling or wall. Instead of an encompassing groove, bores provided at suitable points, that is, blind bores, may naturally also be used, into which the screw bolts can be screwed. Instead of a cup, a three-legged holder--if the cast resin body has a circular cross section--or a four-legged holder--if it has a rectangular cross secti
REFERENCES:
patent: 3504172 (1970-03-01), Liberman
patent: 4263639 (1981-04-01), Schacht
patent: 4685038 (1987-08-01), Huang
patent: 4907137 (1990-03-01), Schladitz et al.
Dority Carroll B.
Greenberg Laurence A.
Lerner Herbert L.
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