DK200200070U3 - lamp Suspension - Google Patents

Description

DK 2002 00070 U3

Description

Denominations

Lamp Suspension.

The scope of the invention

This arrangement relates to a device for use for hanging a light fixture via its power cable.

Prior art

The two products in use that are best comparable to the product produced are; A) Swan neck lamp suspension. This product consists of a pipe profile bent over a given radius. The cord is inserted through the tube and held by means of screws and rubber cuffs at the end of the tube. The pipe profile itself is mounted in the ceiling using a welded threaded piece. B) The other known technique works by breaking the wire around in an S-shaped course molded in a plastic block. The suspension itself is mounted in the ceiling by a metal, cast-in thread in the plastic block.

The technical problem to be solved

With the creation is provided a lamp suspension which is both easy to use (make adjusting the height of the lamp simple) and ensures the fixation of the lamp at a given height without damaging the cord (broken m m). Furthermore, the production opens up a very simple mode of production.

The major disadvantages of the known lamp suspension models are precisely within these fields. The problem with the swan neck model consists of a comprehensive assembly and adjustment technique. These problems are not present in the same way with the S-shape lamp suspension. But here the technique with the sharp S-shaped crack leads the diversion that it deforms sharply on the insertion part. This deformation means that when adjusting the height of the lamp these marks are clearly visible (the wire is damaged). Furthermore, both known lamp hangings are relatively (in relation to applicant generation) complicated to manufacture.

DK 2002 00070 U3

The new technique

The production is described by a cylindrical metal wire in an unbroken piece. One end / part serves as the basis for mounting in a ceiling and forms a threaded piece. The second part acts as a holder of a live wire for a light fixture and constitutes an unwinding of the metal wire in a helical shape.

The resulting lamp suspension works by twisting the wire of a lamp into the helical mold which is fixed in the ceiling via the threaded part. The distance between each twist in the helical shape is large enough for the cord to be easily inserted between them. The inner diameter of the coil causes the wire to be held via the friction between the wire and the inside of the coil. The principle of bearing is thus based on the friction in a linear (vertical) process (unlike, for example, the S-shape of the lamp suspension S). By subsequently adjusting the height of the lamp, the cord is easily twisted out and reinserted to a new desired height.

The technical impact

With created lamp hangings, easy mounting and height adjustment of a given lamp fixture is ensured; this without risking damage to the power cable. Due to the linear bearing process, the deformation of the power cable is minimized. The bearing / fixation principle, which works exclusively with the friction resistance between wire and coil, provides easy mounting and adjustment.

Because the overall production can be processed / produced as a single item, without additional welds, castings or the like, a very simple production method is provided.

List of Figures

Figure 1: Drawing of the principle for the production in the figure

Figure 2: Drawing principle for production in plan (top view)

Figure 3: Drawing principle for production in plane (bottom view)

Figures 4 - 7: Drawings of production mounted and in operation (cartoon course)

Embodiments

Figure 5-6 shows how a wire (c) wire (b) is twisted into the lamp suspension (a).

Figure 7 shows a lamp (c) suspended in the lamp suspension (a). Note the linear course the line (b) describes mounted in the lamp suspension (a).

DK 2002 00070 U3

Use Model Requirements

Lamp suspension described by a continuous cylindrical metal wire (this can be molded or drawn / extruded, as well as applied to a given surface treatment). One end / part serves as the basis for mounting in a ceiling and forms a threaded piece. The other end / portion acts as a holder of a live wire for a light fixture and constitutes an unwinding of the metal wire in a helical shape. The coil is sized so that a power cable can easily pass between each twist and with such internal diameter that the friction between the cord and the inside of the coil ensures fixation of a light fixture (lamp) at a given height (vertical position).

DK 2002 00070 U3

Figure 1

Made of lamp hook

Figure 2

Top picture lamp hook

Figure 3

Bottom image lamp hook DK 2002 00070 U3