EP2667088B1 - Recessed light fixture - Google Patents

Description

The invention relates to a mounted in ceilings and / or ceiling systems recessed luminaire.

In known recessed luminaires of this type, the necessary for mounting in ceilings or the like. Fasteners are generally mounted laterally projecting beyond the contour of the lamp body, so that also required for the attachment elements, such as screws, must be handled from the side. This is difficult, especially since it is consistently required to keep the lamp for a large part of the time, which requires the installation of the lamp, from the bottom to the completion of the mounting installation.

Out US 3,018,082 A is a recessed luminaire with side-mounted fasteners known, each having a substantially vertically extending bolts, each carrying a laterally projecting support arm, which between a first position in which it does not or only slightly beyond the contour of the recessed light, and a second position is pivotable, in which it is outside the contour of the recessed light and above a portion of the ceiling and can be brought to this by appropriate rotation of the bolt to the plant. For this purpose, this support arm is provided with a thread which is in engagement with that of the threaded bolt.

DE 10 2004 006 970 A1 discloses a recessed luminaire with a top side attached to the fixing device for fixing the lamp in a mounting hole. This fixing device has a substantially displaceable in a horizontal plane rod whose two end portions are bent in opposite directions approximately at right angles to the central region of the rod. The rod is parallel to the longitudinal axis of the central region relative to the lamp slidable such that the one, serving as a support arm angled end portion, which is adjustable by a rotation of the rod about the longitudinal axis of its central region with respect to its altitude, displaceable between the two above-mentioned positions is.

The invention is based on the object, the recessed luminaire in such a way that the assembly is simplified without causing the construction of the luminaire with fastening device a significant complication.

To solve this problem, the invention proposes a recessed luminaire, which has the features of the characterizing part of claim 1.

Due to the top-side attachment of the fastening device and its displacement between a first position in which the attachment of the lamp in the ceiling effecting elements, the contour of the actual light not or only Enlarge significantly, and a second, the fixing of the lamp causing position, the installation is considerably easier, especially since the fastening device can be handled from below through the case still open at the bottom. How close the fasteners are in the first position on the lamp or its housing, also depends on the particular circumstances, such as the size of the recess or the like in the ceiling, which is to receive the lamp. Finally, the position of the fastener in the first position is determined by not obstructing the insertion of the luminaire into the seat or the like provided in the ceiling but, on the other hand, being able to perform its associated holding function in the second position.

The top-side mounting of the fastening device is particularly advantageous for lights with low height, which is made possible by the use of LEDs, because in certain ceiling structures, the ceiling components, to which the fasteners attack, are located at a greater distance from the lower boundary of the ceiling than the height of the lamp corresponds. Due to the top-side attachment, the fastening devices are at a higher level than when mounted on the side.

According to a further proposal of the invention, the connecting element may have two legs, which are possibly integrally connected to each other such that both legs are pivotable relative to each other and one of the legs is mounted on the lamp housing.

Preferably, the holding extension has a boom section and a support section coming to rest on the ceiling system or the like, wherein the retaining extension is preferably mounted integrally on the other leg of the connecting element.

Further advantageous embodiments of the fastening device emerge from the dependent claims.

The connecting element acts like a hinge joint, so that it is possible by the movement of the support extension supporting leg to bring the support portion of the holding extension to rest on the ceiling system or the like. And if necessary to use this as an abutment to this movement of the leg move the light upwards to its final installation position.

Thus, the lamp can already at a relatively early stage of the assembly process, namely after moving the fastening device from its first position towards the second position are supported by the ceiling as soon as the at least one retaining extension is in the area surrounding the recessed ceiling construction, so that the luminaire does not have to be held from below during the entire assembly process.

The manipulations required for moving or pivoting the fastening devices, ie the displacement or pivoting of the fastening device in the respective area located laterally next to the lamp and the following height adjustment, can be accessed from below, that is, even when the lamp is already in the ceiling It can be assumed that the parts to be mounted within the luminaire housing, such as, for example, illuminant, reflector, etc., are inserted into the housing only after the measures required for the final fastening of the luminaire have been completed.

Another advantage of the embodiment of the recessed luminaire according to the invention is that it can be removed again if necessary - possibly after removal of the components located in the housing - without much difficulty. Depending on the design of the lamp housing, it may be necessary in which the connecting element bearing A region of the lamp housing to provide a recess to provide the space required for the movement of the second screw between the two positions of the fastening device free space.

The invention is applicable to all conceivable luminaire shapes, so for example in the vertical projection round or rectangular lights, without this list should be exhaustive.

The number of fastening devices will depend on the particular circumstances, in particular the size of the lamp. In general, however, it will be necessary to provide at least two fasteners.

• Figuren 1a und 1b: schematische Darstellungen einer Leuchte mit Befestigungseinrichtung in der ersten Position (Figur 1a und in der zweiten Position 1b),
• Figuren 2a und 2b: den Figuren 1a und 1b entsprechende Darstellungen, in welcher sich die Befestigungseinrichtung in einer vom Leuchtengehäuse entfernten Zwischenposition befindet,
• Figuren 3a und 3b: den Figuren 1a und 1b entsprechende Darstellungen mit der Befestigungseinrichtung in der zweiten, wirksamen Position,
• Figur 4a bis 4c: jeweils eine Seitenansicht, eine Vorderansicht und eine perspektivische Ansicht der Befestigungseinrichtung,
• Figur 5: eine perspektivische Ansicht der Leuchte mit Befestigungseinrichtungen von oben,
• Figur 6: eine Teilansicht des Leuchtendachs mit den sichtbaren Teilen einer daran angebrachten Befestigungseinrichtung.

The drawing shows an embodiment of the invention is shown:

• FIGS. 1a and 1b : schematic representations of a luminaire with fastening device in the first position ( FIG. 1a and in the second position 1b),
• FIGS. 2a and 2b : the FIGS. 1a and 1b corresponding representations in which the fastening device is located in an intermediate position remote from the lamp housing,
• FIGS. 3a and 3b : the FIGS. 1a and 1b corresponding representations with the fastening device in the second, operative position,
• FIGS. 4a to 4c in each case a side view, a front view and a perspective view of the fastening device,
• FIG. 5 a perspective view of the luminaire with fastening devices from above,
• FIG. 6 : A partial view of the light roof with the visible parts of a fastener attached thereto.

The lamp 10 of in FIG. 5 The drawing illustrated embodiment has in plan view a substantially rectangular housing 12, the upper limit of which represents the light roof 14, to which four fasteners 16 are mounted, respectively near the peripheral edge of the light roof 14. Each of these fasteners is provided with a connecting element 18 , which has two flat portions 20, 22, which are integrally and against each other bent such that they correspond to the legs of an acute angle and are arranged substantially one above the other. In this case, the apex region 24 functionally forms the axis of a hinge about which the two legs are relatively pivotable relative to each other. On the upper leg 20, a holding extension 26 is attached to the upper side, which has a boom section 28 and a support section 30. The boom section 28 assumes after attachment of the lamp in the ceiling system or the like. Normally a substantially horizontal position, so that in the embodiment of the boom section 28 substantially perpendicularly extending support portion 30 is then directed downward. However, depending on the particular circumstances, other embodiments of the holding extension are conceivable in which z. B. the two sections 28, 30 are not or not so strongly angled against each other.

The attachment of the connecting element on the light cover 14 by means of a screw 32 which is guided from below, so from the interior of the housing 12 through a corresponding opening in the housing roof 14 and guided with a threaded bore 31 in the lower leg 22, which may abut the light roof 40 ( FIG. 2a and 4c ). This first screw 32 allows pivotal movement of the connecting element 18 on the housing 12. The required for the passage of the first screw opening in the housing roof 14 will be dimensioned so that the screw sits with little play in this opening, so that the longitudinal axis of this screw also at the same time the pivot axis for the connecting element 18. The upper leg 20 of the connecting element 18 is provided with a larger opening 33 (FIG. Figure 4c ), which is in the assembled state of the parts above the threaded bore 31 in the lower leg 22 and forms a free space for the free end of the first screw 32 when the two legs have a small distance from each other.

The connecting element 18 is provided with a second screw 34, which extends through an opening 35 in the light cover 14 and also engages in a threaded bore in the lower leg 22 and has the function of a screw, which can be brought to rest on the upper leg 20 to bring this and the integrally attached thereto retaining extension in the required position. This is done by a corresponding, caused by the second screw 34 in the apex region 24 bending the upper leg 20 relative to the lower leg 22, which is mounted in the manner already described on the light roof. The drawing ( FIGS. 4a, b ) can be seen that the holding projection 26 is attached to one longitudinal side of the upper leg 20 so that it extends from this leg towards the apex region 24 between two legs 20, 22 such that in the operative position of the holding extension 26 with a ceiling portion surrounding the recessed light from above cooperating support portion is located beyond the apex area 24, so the hinge axis of the connecting element 18 and a pivoting of the upper leg 20 causes a lowering of this support portion.

Usually, a recessed light of the type in question is provided with at least two fastening devices. In the embodiment shown in the drawing, as already mentioned, four fastening devices are present, one in each of the four corners of the lamp, which is approximately parallel to the light roof 14 approximately in the horizontal plane are pivotable.

The installation of such a recessed luminaire takes place in such a way that first the fastening devices are loosely mounted on the light cover 14 by means of a first screw 32, so that the fastening device is pivotable about the first screw 32. In the starting position ( FIG. 1a, 1b ), So at the beginning of the insertion of the recessed light in the space provided ceiling opening, the connecting elements with the respectively located thereon holding projection 26 in a position in which the holding projections are close to the lamp housing, possibly laterally adjoining this, as shown in FIG. 1a is recognizable. The second screw 34 is expediently adjusted so that the upper leg 20 of the connecting element occupies its lower position, in which it is as close as possible to the lower leg 22, and thus the support portion 30 in its upper end position, at least as far as is pivoted above, that it is with its free end above the area of the ceiling or the like., With which it engages in its final position or at which he comes to rest.

Thereafter, the fastening device is pivoted outwardly, so that the holding extension 26 extends so far away from the lateral housing wall, so that it is on the area of the ceiling system or the like., Where it is to be brought to bear, so as a kind Suspension for the lamp to form ( FIGS. 2a, b ). This pivoting movement can be effected by corresponding displacement of the second screw 34, for which purpose a corresponding aperture 35 is provided in the light roof 14. At this stage of mounting the lamp, it is no longer necessary, in addition to support the light from below, for example, manually. Rather, if necessary, the recessed luminaire can be lowered after swinging out of the retaining extensions until the support sections come to rest on the adjacent ceiling areas. The recessed light does not then take its final position.

Now, it is possible to effect by appropriate actuation of the second screw 34 of the respective fastening device pivotal movement of the holding extension 26 by the upper leg is pivoted upward with the result that when the lower support portion 30 rests against the ceiling, the lamp housing over the connecting element 18 connected to it is "pulled" from the intermediate position upwards into the final installation position, in any case secured in it. If the first, the connecting element on the light roof holding screw was not already tightened after the pivoting of the respective holding extension for fixing the same in the plane of the light roof, this can also be done after reaching the upper end position of the upper leg and thus the end position of the lamp.

This end position can z. B. be determined that a mounted on the lower circumference of the housing 12, outwardly projecting edge 36, for example, in the course of the above-described upward movement of the lamp, which is effected by the actuation of the adjusting screw 34, at an area of the ceiling, for example on a Ceiling profile 40 of the ceiling system comes to rest, whereby the displacement of the lamp is limited within the receiving opening.

The support portion 30 is provided with predetermined breaking points 38, which allow a quick and easy shortening of the support portion 30 to adjust its length to the particular circumstances, in particular to the distance, which in the course of the pivotal movement of the upper leg 20 and thus of the support portion supported by these must be bridged. This distance may also depend on the height of the luminaire. This removal of the lamp can be done in such a way that the second screw located on the connecting element 34, by means of which the height-adjustable leg 20 is brought into its fixing the recessed lighting effecting position, is loosened, so as to tighten the fastening between the fastening device and the ceiling system or the like. repealed. It is then - possibly after loosening the first screw 32 - possible by corresponding displacement of the second screw, the connecting element and thus the support extension to move back to its first position such that the support portion out of engagement with the ceiling system or the like. Comes and thus the Light can be easily taken down from the ceiling after the electrical connections have been solved.

LIST OF REFERENCE NUMBERS

10

lamp

12

casing

14

Canopy

16

fastening device

18

connecting element

20

upper leg

22

lower thigh

24

apex region

26

Holding projection

28

boom section

30

support section

31

threaded hole

32

first screw

33

perforation

34

second screw

35

perforation

36

edge

38

Predetermined breaking point

40

ceiling profile

Claims (12)

1. Recessed light fixture (10) to be installed in a ceiling or ceiling system, on the top of said recessed light fixture is mounted at least one fixing device (16) that includes a connecting element (18) which carries a holding extension (26) and which is movably mounted to said recessed light fixture (18) in such a manner that said holding extension is movable between a first position, in which it does not or only slightly project above the contour of the recessed light fixture, and a second position, in which it is located outside of the contour of the recessed light fixture and above a region of the ceiling or ceiling system and comes to bear against the same, characterized in that the connecting element (18) includes a section (20) that is turned away from the recessed light fixture (10) and is adjustable in height, said section being one of two legs (20, 22) of the connecting element (18) and carrying said holding extension (26), and the other leg (22) being movably mounted on the top of said recessed light fixture (10).
2. Recessed light fixture according to claim 1, characterized in that the holding extension (26) is carried by the upper leg (20) of the connecting element (18).
3. Recessed light fixture according to claim 1, characterized in that the connecting element (18) is made in one piece.
4. Recessed light fixture according to claim 1, characterized in that the holding extension (26) includes a cantilever section (28) and a supporting section (30) that comes to bear against the ceiling system.
5. Recessed light fixture according to claim 1, characterized in that the holding extension (26) extends from its supporting leg (20) towards the apex region of the connecting element (18).
6. Recessed light fixture,according to claim 1, characterized in that in said apex region of the connecting element (18), said two legs (20, 22) are connected to each other only over a portion of the transverse width of the legs.
7. Recessed light fixture according to claim 1, characterized in that said cantilever section (28) and/or said supporting section (30) are formed in a web-like manner such that the thickness of the web transversely to the longitudinal extension thereof is small.
8. Recessed light fixture according to one of the preceding claims, characterized in that the fixing device can be pivoted between the first and the second position about a first screw (32) by which the fixing device (16) is mounted to said recessed light fixture (10).
9. Recessed light fixture according to claim 8, characterized in that the first screw (32) is guided in a first threaded hole of the leg (22) of the connecting element (18) which faces said recessed light fixture.
10. Recessed light fixture according to one of the preceding claims, characterized in that on the connecting element (18), a second screw (34) is provided by which the leg (20) that carries the holding extension is adjustable.
11. Recessed light fixture according to claim 10, characterized in that the second screw (34) is guided in a second threaded bore of the leg (22) that faces said recessed light fixture.
12. Recessed light fixture according to claim 10, characterized in that the part of said recessed light fixture carrying said connecting element (18) is provided with a through hole (35) through which the second screw (34) extends and which corresponds to at least the distance along which said second screw (34) moves when the holding extension (26) is moved between the first and the second position.

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