Illumination – With static structure – Wall or ceiling
Patent
1988-06-01
1989-06-06
Lazarus, Ira S.
Illumination
With static structure
Wall or ceiling
362404, 362407, 362419, 362427, 362430, 362432, 362275, F21S 102
Patent
active
048376671
DESCRIPTION:
BRIEF SUMMARY
The invention relates to a lighting system comprising lamps, in particular projectors, arranged between low-voltage conductors, whereby conductors provided for instance as ropes, cables, or wires are parallel arranged and fixed by means of holding devices, and lamps are connected to conductors by means of two electrically conductive barshaped supports and, in an electrically conductive manner, by means of fixtures arranged at supports.
Lighting systems of the prior art are known to have plates arranged as webs between conductors, interconnected by means of screw mountings and clamped to the conductors. The projector is fixed to the plates and supplied with current from the conductors through a particular cable. This common lighting system is difficult to install and to adjust with regard to the beam angle. The plates arranged as webs are furthermore irritating, giving a relative rude impression compared to the conductors. The conductors must further be braced between opposite surfaces, such as walls. This is a disadvantage, because several pairs of conductors are necessary for large area room lighting and a low tension transformer must be provided for each of them. Further, several bracing and fixing means are necessary so that assembly is time-consuming and expensive.
The object of the invention is to provide a said lighting system, which is easy to install and to adjust, whereby projectors are optically conformed to the conductors and special cables are not necessary for the projectors, and whereby a deviation of the conductors within the range of small angles up to 180.degree. can be adjusted between support surfaces by means of suited holding devices.
According to the invention the problem is solved in that two conductors are diametrically arranged at the lamp holder radially to its longitudinal axis, connected to contacts of the bulb inside the lamp holder, pivoted at their outer end sections in each case to one electrically conducting bar-shaped support, which comprises a rotatable fixture with a swivelling axis arranged to the longitudinal axis of current-carrying bars, whereby each fixture can be connected to a current conductor that its surface areas, that are arranged normal to the swivelling axis, parallelly arranged relative to the longitudinal axis of the current-carrying bars, and that for support of the current conductors two deviation segments with a guidance for a rope, cable, wire or the like are provided, interconnected by means of a holding device, pivoted to a wall support by means of a ceiling support or by means of at least one supporting arm. Each lamp can be adjusted to achieve a beam angle desired by means of the cardanic lamp mounting between the conductors. Further, the lighting system with the conductors give a very filigreed impression, in particular when several lamps are installed, so that lighting system can be used not only of illumination, but also as a creative element in closed rooms.
Further features of the invention are described in the subclaims and will be explained according to the embodiments shown in the drawings. It shows
FIG. 1 a section of the lighting system according to the invention in a diagrammatic perspective view,
FIG. 2 a projector between two conductors in a diagrammatic view,
FIGS. 3a to 3d a fixture of the projector according to FIG. 2 in different views,
FIGS. 4a and 4b a holding bush for the supports of the projector in a diagrammatic cross view,
FIGS. 5 and 6 an altered embodiment of the projector in diagrammatic side views,
FIG. 7 the projector according to FIG. 5 in a diagrammatic top view,
FIGS. 8 to 10 the lamp holder of the projector in side views and in a top view,
FIG. 11 the supporting frame of the projector in a diagrammatic top view,
FIGS. 12 and 13 the supporting frame according to FIG. 11 in two side views,
FIG. 14 the holding device in a perspective view,
FIG. 15 the holding device according to FIG. 14 in a top view,
FIG. 16 the holding device according to FIG. 14 in a sectional view,
FIG. 17 the deviation device of the holding devic
REFERENCES:
patent: 3512743 (1970-05-01), Lipscomb
patent: 3748463 (1973-07-01), Trassinelli
patent: 4219869 (1980-08-01), Bowman et al.
patent: 4747025 (1988-05-01), Barton
patent: 4758935 (1988-07-01), Frossati et al.
Cox D. M.
Lazarus Ira S.
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