DEVICE WHICH CAN BE FASTENED TO A CEILING FOR HOLDING AN ELECTRICAL CONSUMER, FOR EXAMPLE, LUMINAIRE OR DISPLAY

Abstract

The invention relates to a ceiling light for attaching to a room ceiling and positioning a light (2) or other electrical device at any point within a defined circular area on the room ceiling. To this end, the light (2) is attached to a roller carriage (3) displaceably inserted in a hollow profile (4) rotatable about the center axis thereof. The hollow profile (4) is attached to the room ceiling by means of a center axial bearing (10) in which a rotatable power transmission system is integrated and is supported against the room ceiling at both ends by support rollers (19). Tilting motions are thereby prevented. The power supply is provided by means of the centered power source typical of room ceilings, in that the power is transmitted by means of the rotatable power transmission system to a power cable (14) routed within the displacing device, fed to the roller carriage (3) by means of said cable, and connected to the light there.

Claims

1. A device for mounting an object, particularly an electrical consumer (2), such as a light or a display having a ceiling mounting element (9) for attaching to a room ceiling, holding an elongated support body (4) extending in a horizontal plane and rotatable about the vertical axis running through the ceiling mounting element (9), and forming two support arms facing away from the ceiling mounting element, on which support body (4) a mounting element (3) displaceable in the direction of extent of the support body (4), on which an object, particularly the consumer (2) can be attached, the electrical supply line thereof running through the support body (4) to the ceiling mounting element, and a support element (19) for supporting the supporting body on the ceiling, characterized in that one support element (19) in the form of a support roller (19) is provided on each of the two supporting arms, said element being pivotally supported about an axis extending in the direction of extent of the support body (4), and that the mounting element (3) can be displaced along the entire length of the support body (4).

2. The device according to claim 1, characterized in that the support body (4) can be rotated about the vertical axis through an arbitrary angle of rotation without any limiting stop.

3. The device according to any one of the preceding claims, characterized in that the ceiling mounting element (9) comprises an axial bearing (5) having electrical contact means disposed coaxial to the vertical axis.

4. The device according to any one of the preceding claims, characterized in that the mounting element (3) can be displaced in a hollow of the support body (4) implemented as a hollow profile, particularly as a C-profile, wherein it is particularly provided that the mounting element is a roller carriage (3) comprising running rollers (22) running on two running flanks flanking a slit extending in the direction of extent of the support body (4).

5. The device according to any one of the preceding claims, characterized in that the support rollers (19) are each disposed at an end of the support body (4), wherein at least one, preferably all support rollers (19) are spring-loaded in the vertical direction.

6. The device according to any one of the preceding claims, characterized in that the consumer (2) can be adjusted in the vertical direction.

7. The device according to any one of the preceding claims, characterized by an drive motors actuated by an electrical control device for rotating the support body (4) and/or for linearly displacing the mounting element (3) and/or for vertically displacing the object, particularly the consumer (2).

8. The device according to claim 7, characterized in that the electrical control device is programmable, so that the object, particularly the consumer (2) can be displaced to various end positions along define displacement paths controlled by a program.

9. The device according to any one of the preceding claims, characterized in that two or more mounting elements (3) on each of which an object, particularly a consumer (2), can be mounted are displaceable in the direction of extent of the support body (4).

Description

[0056] An embodiment of the invention is described below in greater detail with reference to the enclosed drawings. In the drawings:

[0057] FIG. 1 A sketch of the side view of a motion device for ceiling lights according to the invention.

[0058] FIG. 2 A sketch of the longitudinal section view of a motion device for ceiling lights according to the invention.

[0059] FIG. 3 A sketch of the cross section view of a motion device for ceiling lights according to the invention.

[0060] The benefits of the invention are achieved by the following construction of the device according to the invention, wherein here the non-motorized, manually operated basic embodiment is described.

[0061] The light 2 is attached to a roller carriage 3 displaceably placed in a hollow profile 4, on which hollow profile a current collector 11 is mounted, forming the bottom part of a power transmission system comprising the current collector 11 and power base 12, as is used in cordless water boilers able to rotate 360. The use of a patented power transmission adapter (Strix Limited) designed for 230 V grid voltage is intended here.

[0062] The power transmission system is integrated in an axial bearing 5 mounted at the center of the hollow profile 4, comprising a top bearing washer 6, the hollow profile 4 being attached to the mounting tabs 16 thereof, a bottom bearing washer 7 having a tube 8 and attached to a ceiling mounting element 9 by means of the tube 8, and a ball bearing 10 present between the bottom bearing washer 7 and the top bearing washer 6. The axial ball bearing 10 is similar to those used in casters on shopping carts, for example. The current collector 11 is mounted on the top side of the hollow profile 4 by means of a center recess, such that the power connection points 13 thereof face into the hollow space of the hollow profile 4.

[0063] The power connection points 13 are connected to a power cable 14 routed in the hollow profile 4, laid loosely in the interior of the hollow profile 4 in a curved shape for the embodiment as a ribbon cable, or guided by a cable carrier placed in the hollow profile in a curved shape. The other end of the power cable 14 is connected to a cable connection element 15 attached to the roller carriage 3. The power cable 14 is dragged along when the roller carriage 3 is displaced, similar to a ribbon cable on the print head of an inkjet printer. The top bearing washer 6 comprises mounting tabs 16 to which the top side of the hollow profile 4 is attached.

[0064] The bottom bearing washer 7 comprises a tube 8 facing toward the room ceiling over the hole thereof, said tube being guided through the ball bearing 10 and the hole in the top bearing washer 6. The power base 12 is firmly inserted in the bottom end thereof, so that the power connection points 17 thereof face toward the room ceiling and are connected to stationary power cables 18 from the room ceiling. The current collector 11 is inserted into the power base 12 precisely when the hollow profile is attached to the mounting tabs 16 of the top bearing washer 6.

[0065] Support rollers 19 are mounted at both ends of the hollow profile 4, the axes of rotation thereof being disposed parallel to the longitudinal axis of the hollow profile 4, wherein the support rollers 19 protrude above the top edge of the hollow profile 4 in the direction toward the room ceiling, and continuously contact the room ceiling by means of a spring 21, even if the room ceiling is uneven and the distance between the room ceiling and the ends of the hollow profile thereby varies.

[0066] The support rollers 19 support the ends of the hollow profile 4 against the room ceiling in this manner during rotation, and thus ensure a stable, horizontal orientation of the hollow profile 4 while retaining full mobility, regardless of the position of the light 2 and the thereby changing lever forces. The entire device is attached to a corresponding ceiling mounting element 9 by means of the tube 8 of the bottom bearing washer 7, said mounting element in turn, depending on the design, being attached to the room ceiling in the immediate vicinity of the power connection point 17 by means of at least one screw.

[0067] The size, shape, design, selected material, and technical conception of the components listed above and claimed and described in the embodiment examples to be used according to the invention are not subject to any special exceptional conditions, so that the selection criteria known in the area of application can be used without limitation.

[0068] For the embodiment according to FIG. 1, the displacing device according to the invention is shown on which a typical suspended light 2 is mounted as an example, said light being present precisely in the center of the displacing device and thus in the center of the room ceiling, or precisely below the power connection point of the room ceiling. In said embodiment, the displacing device is operated by hand, that is, the bulb 2 is displaced by hand to the right or left to an arbitrary location on the hollow profile 4.

[0069] At the same time, the hollow profile can be rotated about the center axis thereof, in that the light 2 is pulled in a direction transverse to the hollow profile when the light 2 is present sufficiently far outside the center of the hollow profile 4. If the light 2 is present precisely in the center of the hollow profile 4, then the position of the light 2 remains unchanged when the hollow profile 4 is rotated. If the light 2 is pulled out of the center, then the position of the light 2 changes on a circular path when the hollow profile 4 is rotated. In this manner, the light 2 can be positioned at any arbitrary location within a circular area on the ceiling, wherein the length of the hollow profile 4 determines the diameter of the circular area.

[0070] FIG. 2 shows a longitudinal section showing the substantial internal and external components of the displacing device:

[0071] The power cable for the light 2 from FIG. 1 is connected to the cable connection element 15 on the roller carriage 3. The roller carriage 3 runs within the C-shaped hollow profile 4 on the running surfaces 20 for the roller carriage 3. The power cable for the light thereby always hangs through the slit 23 between the running surfaces 20 for the roller carriage 3. The cable connection element 15 on the roller carriage 3 is connected to a power cable 14, the other end of which is connected to a current collector 11 mounted in a recess centered in the hollow profile 4.

[0072] The power cable 14 in an embodiment as a ribbon cable is routed within the hollow profile 4 such that said cable is dragged along when the roller carriage 3 is displaced. The power cable 14 is long enough that the roller carriage 3 can be pulled or pushed to the two ends of the hollow profile 4. The power cable 14 is formed into a loop in the pushing direction and stretched out in the pulling direction. The rotating power transmission system comprises the current collector 11 mounted in a center recess on the top side of the hollow profile 4.

[0073] The current collector 11 engages in the counterpart thereof, the power socket 12, so that the electrical contacts of the current collector 11 and the power socket 12 contact each other. The power socket 12 is mounted in the bottom end of the tube 8 of the bottom bearing washer 7. The tube 8 of the bottom bearing washer 7 in turn is inserted into the tube of a ceiling mounting element 9, and said element in turn is attached to the ceiling. The power cable 18 on the ceiling either is present in the interior of the ceiling mounting element 9 or is fed into the mounting element from outside.

[0074] Support rollers 19 are mounted at both ends of the hollow profile 4, the axes of rotation thereof being disposed parallel to the longitudinal axis of the hollow profile 4, wherein the support rollers 19 protrude above the top edge of the hollow profile 4 in the direction toward the room ceiling, and are continuously pressed against the room ceiling by means of a spring 21.

[0075] FIG. 3 shows a cross-section of the hollow profile 4 of the displacing device, showing the location of the roller carriage 3 within the hollow profile 4:

[0076] The running rollers 22 of the roller carriage 3 rest on the interior running surfaces 20 of the C-shaped hollow profile 4, said running surfaces 20 flanking a slit 23 running along the entire length of the hollow profile 4. The power cable for the light 2 from FIG. 2 is guided by the slit 23 to the cable connection element 15. The bottom end of a power cable 14 in an embodiment as a ribbon cable is connected to the cable connection element 15 within the hollow profile 4. The connection of the upper end thereof to the current collector 11 from FIG. 2 is not shown. The location of the two support rollers 19 can also be seen in the view of FIG. 3.

[0077] The above embodiments serve to explain all of the inventions covered by the application and independently advancing the state of the art by the following combinations of features, namely:

[0078] A device characterized in that one support element 19 is provided at each of the two supporting arms and that the mounting element 3 can be displaced over the entire length of the support body 4.

[0079] A device characterized in that the support body 4 can be rotated through any arbitrary angle of rotation about the vertical axis without any limiting stop.

[0080] A device characterized in that the ceiling mounting element 9 comprises an axial bearing 5 having electrical contact means disposed coaxially to the vertical axis.

[0081] A device characterized in that the mounting element 3 is displaceable in a hollow of the support body 4 implemented as a hollow profile, particularly a C-profile, wherein it is particularly provided that the mounting element is a roller carriage 3 comprising running rollers 22 running on two running flanks flanking a slit extending in a direction of extent of the support body 4.

[0082] A device characterized in that the support elements are implemented as support rollers 19, each rotationally supported about an axis extending in the direction of extent of the support body 4.

[0083] A device characterized in that the support rollers 19 are each disposed at one end of the support body 4, wherein at least one, preferably both, of the support rollers 19 are spring-loaded in the vertical direction. A device characterized in that the consumer 2 is adjustable in the vertical direction.

[0084] A device characterized by drive motors driven by an electrical control device for rotating the support body 4 and/or for linearly displacing the mounting element 3 and/or for vertically displacing the object, particularly the consumer 2.

[0085] A device characterized in that the electrical control device is programmable, so that the object, particularly the consumer 2, can be controlled by a program for traveling along defined trajectories to various end positions.

LIST OF REFERENCE NUMERALS

[0086] 1 [0087] 2 Light [0088] 3 Roller carriage [0089] 4 Hollow profile [0090] 5 Attaching unit [0091] 6 (Top) bearing washer [0092] 7 (Bottom) bearing washer [0093] 8 Tube for bottom bearing washer [0094] 9 Ceiling mounting element [0095] 10 Axial ball bearing [0096] 11 Current collector [0097] 12 Power plug [0098] 13 Power connection point (current collector) [0099] 14 Power cord [0100] 15 Cable connector [0101] 16 Mounting tab [0102] 17 Power connection point (power socket) [0103] 18 Power cable (from ceiling) [0104] 19 Support roller of the hollow profile [0105] 20 Running surface for the roller carriage [0106] 21 Spring for supporting roller [0107] 22 Running roller for roller carriage [0108] 23 Slit