DE8708490U1 - Pull-cord light - Google Patents

Description

§ 2. Description

f. 2.1 Title: Rope pull light

; The invention relates to a variable room light, both for

._, the living area as well as the exhibition area.

2.2 State of the art

Pull-cord lights, or lights that are clamped between the floor and ceiling, are becoming increasingly common these days.

On the one hand, there are the clamped lights, which are usually height-adjustable via Dtah*- j cables, but do not use the wire cables as a power supply,

{ but need extra cables, on the other hand halogen lamps, which are

&iacgr; freely spanned wire ropes receive the power supply, but not to the extent

are height adjustable and swivelable.

The principle of guiding the rope over rollers in the manner described above is already known in the horizontal plane (e.g. parallel pull rail), but it is not used for lights.

2.3 Task

The invention is based on the task of transferring the principle of cable guidance via rollers as described above from the horizontal plane to the vertical plane and simultaneously using the guide cables as a power supply and increasing the variability by pivoting them.

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This goal is achieved by the fact that the low-voltage technology makes it possible to use the wire ropes safely as an insulated electrical cable and the current is directed to the measuring point through contact with the metal rollers of the "lamp holder" and its metal construction. The ability to swivel by 360° is made possible by the use of metal rollers.

2.5 Description of an example implementation

In the drawings, the invented object is shown using a perspective of the carriage (sheet I) and an overall view (sheet 1). The clamping from the floor (transformer 1) to the ceiling is shown. The chip tubes 2 and the tension spring 3 keep the wire tensioned. The lighting carriage 4 or lamp carriage is clamped in the manner shown on sheet 2. The current supply is divided into plus and minus wire cables according to the color representation. The pivoting metal wheels 5 enable the power to be conducted through the carriage frame to the lamp through direct contact with the electrical cables.

To separate the two poles, the three cross tubes are insulated from each other by plastic disks 6.

Claims (1)

1. Protection claims A height-adjustable pull-out light suspended from the ceiling and clamped between the floor and the ceiling, with the transformer for the low-voltage technology standing on the floor as the light base. The two wire ropes, which are attached in this way and kept under tension, simultaneously form the guide and the power supply for the vertically movable metal "lamp carriage" (drawing, page 2), which is equipped with wire rope-compatible wheels and a lamp holder that allows the low-voltage lamp to be swiveled 360 degrees. The tensile forces created by the deflection of the wire ropes hold the "lamp carriage" in any position. Two movable spacer tubes are attached to the upper and lower ends of the wire ropes to create the necessary tension. A tension spring attached to the upper end of the wire ropes and integrated into the suspension also serves this purpose (drawing, page 1). 1.1 1. Sub-claim Height adjustability characterized by the deflection of two wire ropes over metal rollers with simultaneous power supply via these wire ropes. 1.2 2. Sub-claim Pivotability characterized by 360 rotation around the central axis. IHi H lit M i · J ti < · 1 Lf