EP0813027A2 - Lamp montable on a supporting rail - Google Patents

Abstract

The light comprises a support rail attachable to a ceiling and housing parts or outer parts which attach to the underside of the rail. The housing parts form a unit incorporating an outer reflector (12), acting as housing, a light screen comprising longitudinal reflectors (15) and possibly cross lamellas (14) and a lamp fitting. This unit is so formed that it can be installed in only one work process on the support rail (11). For the installation of the unit forming the light (10) on the support rail a rotary retainer is provided, in the one rotary position of which an upper part of the reflector is fixed on the support rail. In its other rotary position, the connection between the reflector and the support rail is released and the reflector and the light can be removed downwards from the support rail.

Description

The present invention relates to a mounting rail lamp with a suspension device comprising a mounting rail which can be attached to a ceiling and housing parts or outer parts of the lamp which can be mounted on the underside of the mounting rail. Rail lights with suspension device of the type mentioned are known from the prior art, in which a mounting rail is first attached directly or suspended to a ceiling. Then a so-called light bar is then attached to this mounting rail. Then the luminaire reflector and / or the luminaire grid is again attached to the luminaire web. Although systems are already known for a so-called quick assembly of the luminaire web on the mounting rail, two assembly processes are necessary in any case for the attachment of a complete luminaire, so that these still take up quite a lot of time.

The object of the present invention is therefore to provide a mounting rail lamp with a suspension device of the type mentioned, which enables an even simpler and faster assembly.

The solution to this problem is provided by a mounting rail lamp with a hanging device of the type mentioned at the outset with the characterizing features of the main claim. According to the invention, the housing parts form a unit comprising an outer reflector which serves as the housing, a luminaire grid made up of longitudinal reflectors and possibly transverse lamellae and a lamp holder, this unit being designed in such a way that it can be mounted on the mounting rail in only one operation. In other words, according to the invention, the previously customary light web and the other parts, such as reflector, light grid, which had to be fastened to the light web, were combined into one unit. As a result, only one operation is required during assembly, namely the attachment of the housing parts or outer parts of the lamp to the underside of the mounting rail. In principle, after this one assembly process there is a complete one Luminaire in front The mounting rails used here do not have to be attached directly to the ceiling, but can also be suspended, for example by chains, ropes, pendulums or the like.

Within the scope of the invention, such an attachment of the housing parts and / or outer parts of the lamp and the lighting-technically effective parts of the lamp to the mounting rail is preferred, which enables tool-free quick assembly. For the assembly of the unit forming the lamp on the mounting rail, a rotary holder is preferably provided, in the one rotational position of which an upper part of the reflector is fixed on the mounting rail and in the other rotating position of which the connection between the reflector and mounting rail and the reflector and the lamp are released are removable downwards from the mounting rail. In any case, however, the reflector and the outer housing of the lamp are part of the invention and the otherwise used light bridge as a separate part is omitted.

According to a preferred development of the invention, brackets are provided which produce the connection between the mounting rail on the one hand and the unit made of reflector, lamp, etc., these brackets overlap parts of the rotating bracket in the closed position and the brackets when the rotating bracket is rotated into the open position be bent so that the reflector and lamp can be pulled down from the mounting rail. According to the invention, these brackets and the swivel bracket are therefore part of the unit which is mounted on the mounting rail.

Furthermore, the brackets are preferably formed from resilient steel sheet or the like and comprise legs which rest in the closed position on parts of the mounting rail and are thus supported. The upper part of the reflector preferably has trough-shaped sections and the support rail has in the lower end region approximately U-shaped parts which are trough-shaped in shape curved sections of the reflector are similar and can be positively received by them after assembly. Furthermore, the rotating bracket preferably has a central horizontal part with outer supports which also rest on approximately horizontal sections of the reflector, so that the rotating bracket is supported on the reflector.

Furthermore, the rotary holder preferably has approximately vertically upwardly projecting arms which are guided in elongated holes in a sheet metal plate during the rotary movement of the rotary holder. The rotary holder thus receives sufficient guidance during the rotary movement in which it is moved into the open position. The brackets preferably have upward or downward curved end legs which overlap the upwardly projecting arms of the rotary bracket, so that when the rotary bracket is rotated, the resilient brackets are pulled inwards and the unit can then be pulled downwards. In this case, however, a horizontal lower section of the clamps is preferably fixed on the rotary holder, so that this horizontal lower section is held in place even when the rotary holder is rotated.

The rotary holder preferably has a lower part which projects downward beyond a lower horizontal section of the reflector. The lamp holder can be located on the reflector, for example. In addition, the rotary holder preferably has a cylinder part connected to this lower part, which extends upwards through a central opening of the reflector and a recess in the sheet metal plate, and on this cylinder part, for example, the arms are attached at the ends of radially outwardly directed webs. The ends of these webs and the arms are therefore outside the central opening of the reflector and hold the rotating bracket on the reflector.

The clips preferably have vertical sections and the reflector likewise has these assigned vertical sections which abut the outside of the corresponding vertical sections of the clips. These vertical sections of the reflector thus form a lateral contact for the brackets. Preferably, two such clamps are used, which are arranged with an offset in each direction in relation to the plane running transversely to the longitudinal direction of the mounting rail, so that the two clamps are approximately diagonally opposite.

The part of the luminaire which is effective in terms of lighting technology can comprise, for example, in addition to the reflectors forming the outer housing, further inner longitudinal reflectors and between these transverse lamellae running at intervals from one another and arranged transversely to the longitudinal direction of the lamp. However, a completely different structure of the luminaire grid is also conceivable. This is not important in the context of the present invention. The essence of the invention is rather that all these parts form a unit that can be attached to the mounting rail in one step.

In previous systems, light is emitted at the points where the reflector is attached and in the area of the lamp holders. This is because there is a perforation in the reflector in the area of the attachment and the reflector also has a perforation at the ends so that it can be moved over the lamp holder. At the latest in the two-lamp version, the perforation is so large that light always emerges upwards. This construction is avoided because the lamp holder sits directly on the reflector and the necessary holes can be adjusted accordingly.

Fig. 1

einen schematisch vereinfachten Querschnitt durch eine erfindungsgemäße Leuchte mit Aufhängevorrichtung;

Fig. 2

einen schematisch vereinfachten Querschnitt durch eine erfindungsgemäße Leuchte mit Aufhängevorrichtung gem. einer Variante der Erfindung;

Fig. 3

eine schematisch vereinfachte Unteransicht eines Teils einer erfindungsgemäßen Leuchte;

Fig. 4

einen Querschnitt durch einen Teil einer erfindungsgemäßen Leuchte im Bereich der Aufhängevorrichtung;

Fig. 5

eine entsprechende Draufsicht auf den Teil der Leuchte gemäß der Darstellung von Fig. 3 und 4;

Fig. 6

eine entsprechende Ansicht des Teils der Leuchte im teilweisen Längsschnitt im rechten Winkel zur Darstellung von Fig. 4 geschnitten;

Fig. 7

eine Abwicklung einer federnden Klammer für eine erfindungsgemäße Leuchte vor dem Biegevorgang.

The present invention is described in more detail below on the basis of exemplary embodiments with reference to the accompanying drawings. Show

Fig. 1

a schematically simplified cross section through a lamp according to the invention with suspension device;

Fig. 2

a schematically simplified cross section through a lamp according to the invention with suspension device acc. a variant of the invention;

Fig. 3

a schematically simplified bottom view of part of a lamp according to the invention;

Fig. 4

a cross section through part of a lamp according to the invention in the area of the suspension device;

Fig. 5

a corresponding plan view of the part of the lamp according to the representation of Figures 3 and 4.

Fig. 6

a corresponding view of the part of the lamp in partial longitudinal section cut at right angles to the representation of Fig. 4;

Fig. 7

a development of a resilient bracket for a lamp according to the invention before the bending process.

First, reference is made to FIG. 1. This illustration shows a schematically simplified view of a lamp 10 according to the invention with an upper mounting rail 11 which can be fastened, for example, to a ceiling. On this mounting rail 11, the lamp 10 is suspended with its housing, which is formed by the reflector 12. In the interior of the lamp housing, the fluorescent lamp 13 extending in the longitudinal direction forms the lamp. A grid can be provided to improve the light control each with right and left optical effective and in a suitable shape shaped longitudinal reflectors 15 and between them dividing the lamp into individual fields arranged in the transverse direction to the lamp longitudinal direction transverse lamellae 14. The special feature of the present invention is that the lamp housing with the reflector 12 directly the mounting rail 11 is fastened without the use of a so-called light bridge, as has been customary up to now. This simplifies assembly overall. The type of suspension and connection of the reflector 12 to the mounting rail 11 is not apparent from FIG. 1 due to the schematic representation and is explained in more detail below with reference to FIGS. 3 to 6. The electrical operating devices, lamp holders and mechanical fastening elements can be attached directly to the lamp reflector 12.

Fig. 2 shows a further embodiment, in which a lamp 20 is in turn connected to a corresponding mounting rail 11 via the lamp reflector 12, which forms the housing here, so to speak. In contrast to the exemplary embodiment described above, however, two parallel fluorescent lamps 13 arranged in the longitudinal direction are provided as the illuminant in FIG. 2, and accordingly the two longitudinal reflectors 16 for the light control are shaped somewhat differently than the longitudinal reflectors 15 according to FIG. 1. Also in the example according to FIG Fig. 2 are transverse lamellae 14. The precise lighting technology, the type and shape of the grid, the number of lamps and the precise housing shape are not important in the context of the present invention. Rather, the principle of mounting the luminaire housing via the reflector 12 on the mounting rail 11 is decisive.

Reference is now made to FIGS. 3 to 6. Fig. 4 shows a cross section through the upper region of the lamp housing with the upper part of the reflector 12a and the device via which this reflector and thus the lamp with the mounting rail 11, of which only the lower part is shown, is connected. The mounting rail 11 can be fastened to the ceiling by means of screws and dowels or the like; it is also possible to hang it from the ceiling by means of a suitable suspension. This is not shown in the drawing according to FIG. 4, since it is not significant for the invention.

At their lower end, the mounting rails 11 have webs 11a bent upwards at an acute angle, which form a support for a leg 182 of sheet steel springs (clamps) 18, as can be seen from the left part of FIG. 4. The support rails 11 can also be initially bent at their lower end in a U-shape with the U-shaped part 112, so that the support rail then extends upwards again. This spring 18 is bent from a sheet steel and, as can be seen from FIG. 4, initially has end legs 181 bent upward at an angle in an angular manner, on the right and left, to which horizontal sections with openings 190 are connected, and then towards the outside a bend follows, so that there is an obliquely angled downward and outward leg or section 191, which is bent at an acute angle inwards at its lower end to the support leg 182, which rests on the end web 11a of the mounting rail 11. The spring (clamp) then still has a vertically downwardly directed section 180 which merges into a horizontal section of the spring in the manner of a sheet metal plate 183. This sheet metal plate 183 can be seen in FIG. 5, and one sees there that it has an approximately square outline, with webs 187 which are bent vertically downwards and which run transversely to the lamp longitudinal direction. Furthermore, there are a total of four tongues 189 oriented obliquely outwards, each in the corner regions of the sheet metal plate 183, which can also be seen in FIG. 6. Two diagonally opposite tabs 192 extend vertically upward from the sheet metal plate 183.

The sheet metal blank of the clamp 18 is shown again in FIG. 7 as a development before the bending process. From this illustration it can also be seen that there is an approximately diamond-shaped hole 195 diagonally in the sheet metal plate 183, so that when the rotary holder is rotated through 50 °, its parts 171, 172, 173 can be pulled down through the hole 195.

This rotary holder 17 can be a molded plastic part, for example. Molded on the rotary holder 17, a cylinder part 171 (see FIG. 5) extends upwards through this recess 195 of the sheet metal plate 183, on which webs 172 which extend outward and have a diamond shape in the plan view and which extend transversely to the lamp longitudinal direction are integrally formed . These webs 172 of the rotary holder each have cylindrical arms 173 (see also FIG. 4) formed at their ends, which extend upward beyond the webs 172 and which are overlapped by the end legs 181 of the brackets 18 which are angled upwards. For the guidance of these arms 173, specially shaped elongated holes 190 are provided in the sheet metal plate 183, so that the rotary holder can be rotated through a certain angle in order to release the assembly connection between the housing of the lamp with the reflector part 12a and the mounting rail 11. As can be seen from FIG. 4, the clamps 18, which are connected to the sheet metal plate 183 in the closed position, which is shown here excellently, stand vertically, their leg 182 resting on the leg 11a of the mounting rail, which leg is bent upward at an acute angle. If you now turn the rotary holder 17 and with this the arms 173, then they strike the innermost upwardly angled leg 181 of the clamp and pull the two clamps 18, which, as can be seen from FIG. 5, are arranged approximately diagonally opposite and which are formed from a resilient material such as spring plate are inwardly in the position shown in dashed lines in Fig. 4, so that they come out of engagement with the parts 11a and 111 of the mounting rail 11 and thereby the connection between the mounting rail 11th and the lamp is released so that the reflector 12a of the lamp can be pulled downwards.

From Fig. 4 it can be seen that the mounting rail 11 and reflector 12, 12a, which serves as a lamp housing according to the invention, are adapted to one another in their shape in the upper region. The reflector has a section 12a which is oriented obliquely inwards and upwards, to which a trough-shaped section 12b adjoins, into which a correspondingly bent section 112 (see FIG. 4) of the mounting rail 11 engages, so that there is a positive fit here. 112, 12b are shaped in such a way that the luminaire can be connected to the mounting rail in a dustproof and waterproof manner (protection class IP 54) without additional sealing material. Further inward, the reflector 12 is again bent over and a vertical section 12c then follows, against which the vertical section 180 of the clamp 18 rests on the inside. At the lower end of this section 12c, the reflector is again U-shaped to section 12d, the lower leg 12e of which extends horizontally and extends further inward beyond the vertical section 12c. This horizontal section 12e of the reflector forms a support for foot parts 174 of the rotary holder 17, as can be seen from FIGS. 4 and 6. These base parts 174 are oriented approximately vertically downwards and are located at the outer end of the rotary holder 17 and at their upper end merge into the central horizontal part 175 of the rotary holder, on which the plate 183 of the sheet metal part on which the bracket 18 is formed then rests is. The rotary holder 17 thus rests with its parts 174 on the parts 12e of the reflector and the bracket 18 rests with its part 183 on the one hand on the part 175 of the rotary holder and in the closed position on the other hand with the part 182 also on the part 11a of the mounting rail 11 .

The function of the clamps 18 and the rotary holder 17 when releasing the connection between the lamp 12a and the mounting rail 11 can be seen from FIG. 5 in conjunction with FIG. 4. The rotary bracket 17 turns from the position shown in Fig. 5 For example, rotated clockwise about 50 °, then the upwardly projecting cylindrical arms 173 are guided in the elongated holes 184 of the sheet metal part 183 and after a while strike the internal vertical web 181 of the clamp and pull it inwards into the FIG. 4 dashed view , wherein the bracket 18 bends due to the elasticity of the material and the connection to the mounting rail 11 is released, so that pulling out the rotary bracket 17, the brackets 18 and pulling the housing 12a down from the mounting rail 11 is possible. After twisting, the clamp 18 is held on the sheet metal part 183, that is to say with its horizontal section, on the rotary holder. The installation is carried out in the reverse order, ie the rotary bracket 17 with the brackets 18 and the parts of the lamp are pushed upwards into the central open area of the mounting rail 11. The assembly takes place by pushing the lamp into the mounting rail, the clamps 18 automatically engaging in the supporting area of the mounting rail and thus creating a lock. No rotary movement of the rotary holder 17 is therefore required. It is therefore only a single assembly process necessary to establish the connection between all the functionally essential parts of the lamp and the mounting rail 11, for example attached to the ceiling.

Claims (14)

A mounting rail lamp with a suspension device comprising a mounting rail which can be attached to a ceiling and housing parts or outer parts of the lamp which can be mounted on the underside of the mounting rail, characterized in that these housing parts form a unit comprising an outer reflector (12) which serves as the housing Luminaire grid made up of longitudinal reflectors (15) and optionally transverse lamellae (14) and a lamp holder, this unit being designed in such a way that it can be mounted on the mounting rail (11) in only one work process. A mounting rail lamp with a suspension device according to claim 1, characterized in that for mounting the unit (10) forming the unit on the mounting rail (11) a rotary holder (17) is provided, in the one rotary position of which an upper part (12a) of the reflector (12 ) is fixed to the mounting rail (11) and in its other rotational position the connection between the reflector (12) and mounting rail (11) is released and the reflector (12) and the lamp (10) can be removed downwards from the mounting rail (11) are. Support rail lamp with suspension device according to claim 1 or 2, characterized in that brackets (18) are provided which establish the connection between the support rail (11) and reflector (12) and lamp (10), these brackets (18) in the closed position Reach over parts of the swivel bracket (17) and when the swivel bracket is turned to the open position, the clamps (18) are bent so that the reflector (12) and lamp (10) can be pulled downwards from the mounting rail (11). Rail light with suspension device according to one of claims 1 to 3, characterized in that the Brackets (18) are formed from resilient sheet metal or the like and comprise legs (182) which, in the closed position, rest on parts (11a, 111) of the mounting rail. Support rail lamp with suspension device according to one of claims 1 to 4, characterized in that the upper part (12a) of the reflector (12) has channel-shaped sections (12b) and in the lower end region of the support rail (11) these approximately U-shaped parts ( 112), which are received in a form-fitting manner by the channel-shaped curved sections (12b) of the reflector (12). Support rail lamp with suspension device according to one of claims 1 to 5, characterized in that the rotary holder (17) has a central horizontal part (175) with outer supports (174) which also rest on approximately horizontal sections (12e) of the reflector. Support rail lamp with suspension device according to one of Claims 1 to 6, characterized in that the rotary holder (17) has arms (173) which project approximately vertically upwards and which, during the rotary movement of the rotary holder (17), extend in elongated holes (190) in the brackets (18). are led. Support rail lamp with suspension device according to one of Claims 1 to 7, characterized in that the clamps (18) have end legs (181) bent upwards or downwards which overlap the upwardly projecting arms (173) of the rotary holder (17), so that when the rotary bracket is rotated, the spring-formed brackets (18) are pulled inward, but a horizontal lower section of the brackets (18) is fixed on the rotary bracket (17). Support rail lamp with suspension device according to one of Claims 1 to 8, characterized in that tongues (189) connected to the sheet metal plate (183) are provided, on which inwardly projecting sections (12d) of the reflector (12) rest. Support rail lamp with suspension device according to one of claims 1 to 9, characterized in that the rotary holder (17) has a lower part which projects downwards over a lower horizontal section (12e) of the reflector (12) and a cylinder part (171 connected to this ), which extends through a central opening of the reflector and a recess (185) in the sheet metal plate (183) upwards. Support rail lamp with suspension device according to one of claims 1 to 10, characterized in that on the cylinder part (171) radially outwardly directed webs (172) are provided, on which the arms (173) are attached at the end. Support rail lamp with suspension device according to one of claims 1 to 11, characterized in that the brackets (18) have vertical sections (180), on the outside of which there are vertical sections (12c) of the reflector. Support rail lamp with suspension device according to one of claims 1 to 12, characterized in that two brackets (18) are provided which are arranged with an offset in different directions in relation to the plane (193) running transversely to the longitudinal direction of the support rail (11), so that the two brackets (18) are approximately diagonally opposite. Support rail lamp with suspension device according to one of claims 1 to 13, characterized in that within the reflectors forming the outer housing (12) further internal longitudinal reflectors (15, 16) are provided and between them transverse lamellae (14) which run parallel to one another at intervals and are arranged transversely to the longitudinal direction of the lamp (13).

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