EP1725810A1

EP1725810A1 - Light comprising a housing that consists of two lateral sections

Info

Publication number: EP1725810A1
Application number: EP05716175A
Authority: EP
Inventors: Rupert Kopp; Gerald Ladstätter; Ulrich Rohmberg; Wolfgang Rüf
Original assignee: Zumtobel Lighting GmbH Austria
Current assignee: Zumtobel Lighting GmbH Austria
Priority date: 2004-03-19
Filing date: 2005-03-17
Publication date: 2006-11-29
Anticipated expiration: 2025-03-17
Also published as: WO2005090858A1; DE102004034014A1; EP1725810B1; DE502005008180D1; ATE443834T1

Abstract

The invention relates to a light (1) comprising an elongated housing (2), the latter (2) being equipped with connection means for at least one bulb. To simplify (1) the construction of said light (1), the housing (2) is configured from two elongated lateral parts (11), each having an upper and a lower longitudinal edge (11a, 11b). According to the invention, sections of the upper longitudinal edges (11a) are interconnected and the lower longitudinal edges (11b) run at a distance from one another and delimit a lower light emission opening (5).

Description

Luminaire with a housing with two side parts

The invention relates to a lamp according to the preamble of claim 1 or 14 or 27.

A luminaire of conventional design has a housing that a ceiling wall and at least two from the ceiling wall e.g. has opposing downwardly extending side walls. As a rule, two further side walls are provided, which are connected to the first side walls and stabilize the housing. In this known construction, at least the top wall and the side walls are required. Because of the required number of components or component sections, this leads to considerable expenditure in terms of size, weight, material expenditure, manufacture and assembly or pre-assembly.

The invention has for its object to simplify a lamp of the type specified. This applies in particular to a reduction in the number of components or component sections.

This object is solved by the features of claim 1. Advantageous developments of the invention are described in the associated subclaims.

In the lamp according to the invention according to claim 1, the housing is formed by two elongated side parts, each with an upper and a lower longitudinal edge, the upper longitudinal edges being connected to one another in sections, and the lower longitudinal edges being spaced apart and delimiting a lower light outlet opening.

A lamp according to the invention is of a smaller size because, at least in the region of the at least one longitudinal section in which the upper longitudinal edges are connected to one another in sections, the lamp or the housing has a smaller width. This not only reduces the installation space, but also the material expenditure. In addition, a ceiling wall can also be omitted in the area of the at least one longitudinal section in which the upper longitudinal edges are connected to one another in sections, which likewise leads to a reduction in the installation space, the weight and the material expenditure.

Another advantage of the configuration according to the invention is that the side parts are uneven or not parallel to one another, e.g. can be roof-shaped or arranged, which leads to greater stability compared to a conventional box shape.

Due to the distance between the lower, preferably straight, longitudinal edges of the side parts, a lower light outlet opening is created with the advantages described above, through which a sufficiently large housing space can be realized, in which a reflector, connection means for at least one associated lamp and holding means for the reflector and the connection means can be arranged. The side parts are preferably connected by gluing. It is advantageous to form adhesive surfaces that run parallel to one another in order to achieve a flat and stable connection.

The side parts can be formed in a simple manner by plates which are flat or deformed transversely to their plane in order to maintain the section connection at the upper longitudinal edges. The upper longitudinal edges can lie directly against one another or they can be spaced from one another in which holding means, e.g. arranged for the reflector and / or the connecting means and / or support parts for attaching or hanging the lamp and can preferably be connected to the side parts at the same time.

The invention is particularly well suited for an elongated and straight-extending lamp in which a greater stability is required, which is due to the length.

In the at least one longitudinal region of the housing, in which the upper longitudinal edges are not connected to one another, the longitudinal edges can be spaced apart, as a result of which an upper housing opening is formed, which is advantageous for various reasons. On the one hand, this creates an interior enlargement that only extends over a partial area of the housing. The upper housing opening can also be used to arrange an operating device or other components of the lamp in their area in the housing. It is also possible to have an inner housing with an eg U-shaped one To arrange cross-sectional shape below the upper housing opening in the housing, which not only leads to a stabilization of the housing or the holding means, but also in which the operating device can alternatively be protected.

The above-described upper housing opening can also form an upper light exit opening. This also allows indirect lighting to be implemented.

The side parts are preferably made of wood or eternit. Side parts made of these materials are not only suitable due to the existing construction, but also characterize a special design of the luminaire.

The light exit opening of a luminaire is e.g. opposite, limited housing walls. The aim is to make the edge surrounding the light emission opening as narrow as possible in order to achieve not only a small construction but also an acceptable appearance of the lamp.

In the case of lamps with straight side walls and in particular in the case of lamps with elongated side walls, the stability of the side walls is relatively low, in particular if the edges surrounding the light exit opening are to be kept narrow.

The invention is further based on the object of stabilizing a lamp of the type specified in the preamble of claim 14.

This object is solved by the features of claim 14. Advantageous developments of the invention are described in the associated subclaims.

In the luminaire according to the invention, the light influencing means can be connected to the lower edge regions of at least two housing walls in such a way that the light influencing means form a housing strut which acts parallel to the light exit opening and is effective transversely to the housing walls inwards and / or outwards.

In this luminaire according to the invention, at least two housing walls are connected to one another and stabilized by the light influencing means. These housing walls are preferably opposing housing walls, the configuration according to the invention being particularly suitable for elongated housing walls which are inherently relatively unstable. This stabilization takes place without a significant increase in the amount of material and / or the construction. The housing strut can be formed in a simple construction by means of pin connections arranged between the light influencing means and the housing walls. It is particularly advantageous to design the housing strut or the spigot connections so that when the light influencing means are inserted they are simultaneously in their operative connection, so that a special joining of the strut components or spigot connection components is not required.

A simple and easy-to-use assembly of the light influencing means and preferably also the strut is achieved when the light influencing means can be connected to the housing by means of a latching device.

In order to achieve efficient and cost-effective production, it is advantageous to connect at least two connecting parts of the lamp to one another by means of an adhesive connection. Apart from the adhesive, there is no need for an additional connecting element for connecting the connecting parts, e.g. B. no connecting screw with associated holes.

With an adhesive connection, however, the risk of an unwanted solution z. B. due to a faulty adhesive connection, material tension or vibrations.

In the case of such luminaires that are set up for positioning in the upper area of a room, an adhesive connection is therefore an uncertainty factor, since it cannot be ruled out that after loosening the adhesive connection at least part of the luminaire falls down and can cause damage to people or objects , This disadvantage applies in particular to a lamp that is suitable for cultivation, for. B. is set up on a wall or a ceiling, or for hanging.

The invention is therefore further based on the object of simplifying and / or rationalizing the connection of at least two connecting parts in a luminaire of the type described in the preamble of claim 27 and of improving the security against falling of at least one connecting part.

This object is solved by the features of claim 27. In the luminaire according to the invention according to claim 27, the two connecting parts are directly or indirectly connected to one another by gluing and are connected to one another by an additional securing device. This ensures that the loosened connecting part does not fall off even after an unwanted loosening of the adhesive connection.

For such a securing device, a form-locking securing device is particularly well suited, in particular such a securing device, the effectiveness of which is based on mutual interlocking of the connecting parts. Such a hooking device can not only be produced simply and inexpensively, but also assembled and brought into the hooking position. In addition, a hooking device can be dismantled quickly and easily.

Within the scope of the invention, a previously described adhesive connection and / or securing device can be used for the adhesive bonding and / or securing of two side walls of the housing of the lamp, which are bonded directly to one another or are indirectly bonded to one another if an intermediate part is present. However, the safety device according to the invention can also be arranged between other connecting parts of the lamp, for. B. between the housing or a side wall of the housing and attached to it by the adhesive connection intermediate pieces or rails, which carry connecting elements or latching elements, which are parts of a connecting device or latching device for connecting or latching a light influencing element of the lamp.

Further subclaims contain features which lead to further simple and small constructions, increase stability, improve the assembly or disassembly of the lamp or its individual parts, or simplify and improve the fastening or hanging of the lamp itself.

Advantageous refinements of the luminaire are explained in more detail below on the basis of preferred exemplary embodiments and drawings. Show it:

Figure 1 shows a lamp according to the invention in a perspective view.

Figure 2 shows the lamp in the front view.

Figure 3 shows the lamp in a partially assembled state in a perspective view. 4 shows a perspective view of an end region of the lamp in another partially assembled state; Figure 5 shows the lamp in a further partially assembled state in a perspective view. 6 shows a light according to the invention in a modified configuration in a perspective view;

7 shows the lamp according to FIG. 6 in a front view;

8 shows an end region of the lamp in the partially assembled state in a perspective representation;

FFiigg .. 99 a lamp according to the invention according to FIG 2 in a modified embodiment in the front view.

Fig. 10 shows a lamp according to the invention according to FIG. 7 in a modified embodiment in the front view.

The main parts of the luminaire designated as 1 in particular from FIG. 2 are a housing 2, one or two holding means 3 arranged opposite one another with connecting means 3a for at least one lamp (not shown), in particular a straight gas discharge tube, a light influencing means 4, which is arranged in the region of a radiation opening 5 of the housing 2 or forms or delimits the radiation opening 5, and fastening means 6 for releasably fastening the light influencing means 4 to the housing 2, the holding means 3 also for releasably holding the lamp 1 on a room wall, in particular on a blanket.

The lights 1 of the present exemplary embodiments are preferably ceiling lights, in particular pendant lights. Suspension means that can be connected to the holding means 3 are not shown and can e.g. be formed by suspension wires, suspension rods or suspension chains with anchoring parts. The radiation opening 5 is arranged on the side facing away from the holding means 3 and hanging means. In the case of a ceiling lamp, the radiation opening 5 is arranged at the bottom. From it emerges in the functional operation of the luminaire 1, the light made clear by a resulting beam 8 for direct illumination of the existing space 9.

In all exemplary embodiments, the luminaire 1 is an elongated luminaire 1, which preferably extends straight, and can be a single luminaire or a longitudinal section of a luminaire strand formed by a plurality of luminaires 1 arranged one behind the other. Essential components of the elongated housing 2 are two elongated side parts 11, which are preferably arranged and shaped mirror-symmetrically with respect to a longitudinal center plane E of the lamp 1 or the housing 2. Therefore, only one side part 11 is described below. It is an essential feature of the side part 11 that it consists of upright arranged plate-shaped flat material with upper and lower longitudinal edges or longitudinal edges 11a, 11b, with at least one longitudinal edge section 11a1, in particular the end-side longitudinal edge sections 11a1, with respect to at least one remaining longitudinal edge section 11a2 inwards, ie to the vertical longitudinal center plane E, is offset. In Fig. 1, the preferably parallel offset longitudinal edge sections with llal and their offset to the inside with a. The remaining non-offset longitudinal edge section 11a2 is preferably located vertically above the lower longitudinal edge 11b. The associated side part region, here middle and extending vertically or parallel to the vertical longitudinal center plane E, is designated 11c. The partially inwardly offset end region of the side parts 11 is designated IIcl. With regard to a vertical transverse center plane, the luminaire 1 or the housing 2 is preferably also mirror-symmetrical.

As can be seen in particular from FIG. 1, the transition between the longitudinal edge sections 11a and 11a2 is rounded in an S-shape.

As can be seen in particular in FIG. 2, the side part 11 extends vertically in the area of the longitudinal edge sections 11a over an upright edge area designated with lld. The side part region 11f extending downward from this edge region 11d can extend rounded or obliquely or, in the exemplary embodiment, S-shaped towards the lower longitudinal edge 11b. This edge region 11f preferably extends to a lower edge region III, which extends essentially vertically and parallel to the vertical longitudinal center plane E, the height of which can be equal to or greater than the height of the upper edge region 11d. The housing 2 is tapered to a dimension b by the inwardly offset wall regions of the side walls, which corresponds to or may be greater than the sum of the thicknesses c of the side part walls, which will be described later. The lateral and end-side free spaces formed by the taper are designated by 12. The length of the longitudinal edge sections 11a is equal to or less than the length of the longitudinal edge sections 11a2.

The two unevenly shaped side parts 11, which are arranged in a mirror image with respect to the vertical longitudinal center plane E, are directly or indirectly connected to one another in the region of the longitudinal edge sections 11 a, preferably indissolubly connected to one another, for example by welding or by gluing, as is the case with the exemplary embodiments. The adhesive connection 13 preferably extends over the entire edge region 11d, which contributes to the stability of the connection. In order to additionally stabilize the adhesive connection 13, the adhesive surface is roughened on one or on both parts 11, 21a to be connected to one another. For example, grooves or grooves can be incorporated into the associated adhesive surface. The grooves or grooves can extend straight or undulating in the longitudinal direction.

The housing 2 described so far can thus only consist of the two side parts 11. The lower longitudinal edges 11b preferably extend straight.

The longitudinal edge sections 11a2 not offset inwards delimit an upper housing opening 14 which extends longitudinally over the side wall region 11c, which in the exemplary embodiment is a middle housing region arranged between the longitudinal edge sections 1111. This housing opening 14 creates space in the housing 2, in which e.g. an operating device can be arranged. At the longitudinal ends of the housing opening 14, connecting elements for fastening means or suspension means of the lamp can be arranged.

As can be seen in particular in FIG. 2, both inwardly offset side wall areas lif delimit a lower dome-shaped housing subspace 15, in the lower area of which the light influencing means 4 can be mounted and removed from below by the fastening means 6. The at least one holding means 3 with the connecting means 3a for at least one lamp (not shown) in the form of a gas discharge tube is arranged above the light influencing means 4 in each end region 11cl. A dome-shaped or tunnel-shaped reflector 17 is arranged above the connection means 3a on the holding means 3, which is formed, for example, by electrical connection elements or contacts 16 for the lamp and extends essentially over the entire length of the housing 2 and directly or indirectly delimits the housing part space 15 Sidewall regions 11f, preferably held on the holding means 3, and reflected downwards in the sense of a head reflector. In the exemplary embodiment, the holding means 3 is in the form of a longitudinally extending upper profile rail 21 which is connected to the side parts 11. For this purpose, a central vertical rail web 21a is preferably used, which extends up to the region of the edge regions 11d and is preferably permanently connected to them. The length of the profile rail 21 or of the rail web 21a can essentially correspond to the length of the side parts 11 or be shorter. The rail web 21a is preferably glued flat to the edge areas lld, its side surfaces being roughened or having the grooves or grooves already described, in order to increase the strength of the adhesive connection 13 arranged on its two sides. A correspondingly designed and arranged upper profile rail 21 is also arranged in the other end region 11c in the upper housing part space 15 of the housing 2. If the rail web 21a is arranged between the transversely opposite edge regions 11d, the dimension b measured over the inwardly offset side walls is increased by the thickness of the rail web 21a.

The rail web 21a is formed in its lower edge region with a downwardly opening groove 22, which forms a screw channel, into which fastening screws 23 are screwed from below, which have the connecting webs 3a and the connecting contacts 16, mounting webs 3b and / or the reflector 17 and / or grasp the bottom 25a of an inner housing 25 to be described in each case in a through hole. It is also possible to lock the mounting webs 3b on the base 25a by means of locking elements 3c which protrude upward and are indicated in the drawing and which can be inserted from below into associated locking holes in the base 25a and lock behind the base 25a.

To stabilize the base 25a, the profile rail 21 preferably has two laterally projecting support legs 21b which are directed downward and whose lower edges lie at a height with the lower edge of the rail web 21a. The bottom 25a can thus be supported on the support legs 21b upwards.

The inner housing 25 has a U-shape with side walls 25b which extend vertically upwards from the side edges of the bottom wall 25a up to a preferably plate-shaped cover 26. The side walls 25b are preferably dimensioned to be lower than the side parts 11. In addition, the width of the cover is smaller than the transverse spacing of the side parts 11 from one another in the side part region 11c, so that the cover 26 fits into a position sunk in between, as shown in FIG. 2. The cover 26 not only covers the inner housing 25 but also the upper housing opening 14. In the end regions of the inner housing 25, the side walls 25b are recessed approximately rectangular except for small side webs 25c which protrude from the bottom 25a, thereby creating free spaces 27 into which the side wall regions 11d are offset inwards.

The holding means 3 formed by the profile rail 21 can also be used for fastening or hanging the lamp 1 on the wall or ceiling. At the In the exemplary embodiment, a connecting part 28 is connected to the holding means 3 or the profile rail 21, with which support parts (not shown) can be connected for fastening or hanging. The connecting part 28 is preferably connected to the holding means 3 in a form-fitting manner and preferably continuously adjustable in the longitudinal direction of the lamp 1. For this purpose, the profile of the profile rail 21 can be used for a positive connection, for example, by the fact that the connecting part 28 positively engages in an undercut of the profile and / or engages behind a projection of the profile in a positive manner. In the exemplary embodiment, the connecting part 28 has a central and downwardly opening slot 28a, which has a protective extension 28b at a distance from its lower opening, with which it positively engages over a web extension 21c of the rail web 21a. The connecting part 28 can be positively connected to the profile rail 21 by a movement in the longitudinal direction of the lamp 1 and at the same time be adjusted and adjusted into the correct axial position between the cover 26 and the upper longitudinal edges 11a which are offset with respect to one another.

The light influencing element 4 is in the exemplary embodiment by a grid component having grid elements, e.g. a lamella grid, with reflective grid inner surfaces, preferably formed by a cell grid. Such grid components are per se state of the art and therefore do not need to be described in more detail. With regard to a cell grid, reference is made to DE 101 51 958 AI by the applicant, in which a luminaire with a cell grid is shown and described. Such a cell grid is also referred to as a pot reflector.

The grid component or cell grid 31 extends over the entire length of the housing 2 with mutually opposite grid side walls 31a, between which grid cells 31b in several rows, e.g. in two rows.

The cell grid 31 has a longitudinally and centrally extending trough 32 on the upper side. The connection means 3a for the lamp are arranged with respect to the trough 32 at such a height that the lamp is at least partially sunk into the trough 32. This not only improves the light irradiation into the grid cells 31b, but also reduces the construction height. With such an at least partially recessed arrangement of the connection means 3a, it is advantageous to curve the inner reflection walls 31c of the grid side walls 31a more strongly in their upper region or in the upper half than in the lower region, whereby a more effective reflection is achieved. The cell grid 31 has at its upper edge a collar 31d following the shape of the trough.

Instead of a grid component or cell grid 31, a light influencing means 4 of another configuration can also be arranged, e.g. a translucent pane, in particular with anti-glare properties.

The light influencing means 4 can be detachably inserted from below between the side parts 11. The fastening means 6 are used for mounting, which are preferably arranged on the inside in the lower region of the side parts 11 and are preferably parts of a latching device 36. This has latching lugs 36b formed on both sides on spring legs 36a which can be elastically bent out and which engage behind a latching projection in the latched position and deflect into a latching recess 36c. In order to achieve an automatic rebound when the light influencing means 4 is inserted, the latching catches 36b have rounded or oblique insertion surfaces 36d arranged opposite the nose surface, which cause the spring legs 36a to automatically bend out when inserted. Correspondingly oblique or rounded, the latching surface 36e of the latching lug 36b is also designed such that the light influencing means 4 can be released from its latching by a manual tensile force that significantly exceeds the weight of the light influencing means 4, the spring legs 36a being automatically bent out and the latching lugs 36b the light influencing means Release 4 and then spring back into its ready-to-lock position.

In the exemplary embodiment, the spring legs 36a are attached at their lower ends directly or indirectly to the inside of the lower region of the associated side part 11, the spring legs 36a extending with their free ends upwards.

The latching device, designated in its entirety by 36, has latching elements between the light influencing means 4 and the associated side parts 11, which are arranged in mirror images to one another on both sides. In the exemplary embodiment, the side parts 11 are preferably made of non-metallic material, for example wood, eternit or plastic. In particular, if the side parts 11 consist of the aforementioned materials or if the side parts 11 should not have any fastening means on their outer sides or if the side parts 11 consist of thin material, for example sheet metal, it is advantageous to fasten the fastening means 6 to intermediate pieces 37, which are fastened to the inner sides of the side walls 11, in particular in their lower edge regions, preferably by gluing, see FIG. Adhesive connection 13a, which can be roughened or straight or corrugated as described above. Fastening means 6 arranged one behind the other in the longitudinal direction can be formed by a common intermediate piece 37 in the form of a longitudinally extending profiled rail 37a. To fasten the base ends of the spring legs 36a, a groove 37b, for example open at the top, can be provided, in which the base end of the spring legs 36a, for example bent in a U-shape, is fastened, in particular clamped.

Since the side walls 11 are connected to one another only in their upper region, it is advantageous to brace the side parts 11 in their lower region transversely or parallel to the light exit opening 5 with the light influencing means 4. For this purpose, pin connections 38 arranged on each side between the side parts 11 and the light influencing element 4 can be provided, each with a connecting pin 38a on one connecting part and a pin recess 38b receiving the connecting pin 38a on the other connecting part. As a result, the lower ends of the side walls 11 are fixed to one another in the transverse direction by the light influencing means 4 and thus braced and stabilized. The pin recesses 38b are each open in the opposite direction to the insertion direction, here below. Therefore, the connecting pin 38a directed in the opposite direction, here upward, is automatically inserted into the pin recess 38b when the light influencing means 4 is inserted. In the example of the axis guide, the pin recess 38b is arranged on the intermediate piece 37 or the profile rail 37a and the connecting pin 38a is arranged on the light influencing means 4.

The fastening parts of the fastening means 6 arranged on the light influencing means 4 are preferably preferably formed in one piece on an intermediate piece 39 fastened on the side wall of the light influencing means 4 facing each other. , two intermediate pieces 39 arranged one behind the other in the longitudinal direction can be formed by a common additional profile rail 39a. The intermediate pieces 39 or the profile rail 39a can be permanently attached to the associated side wall of the light influencing means 4, for example by gluing. In particular in the case of a profile rail 39a, the connecting pins 38a can be formed by a profile groove 39b in the profile rail 39a into which a pin recess 38b or groove delimits the inside Profile bar 38c on the intermediate piece 37 or on the profile rail 37a fits from above.

At its lower end, the light influencing means 4 preferably has an approximately horizontally projecting flange 41 on which the intermediate pieces 39 or profile rails 39a can stand.

Particularly when the side parts 11 are made of wood or eternit, the luminaire 1 is given a particularly suitable appearance for room luminaires.

The housing 2 or the housing partial spaces 15 can be open at the end. In this case, it is advantageous to use at least the light influencing means 4 or also the connection means 3 or the inner housing 25 so long that their front ends are essentially flush with the front ends of the side parts 11.

Fig. 3 shows the lamp 1 with the side parts 11 removed, the lower profile rail 37a and the further profile rail 39a being arranged on the invisible or rear lamp side, while on the visible side of the lamp 1 these two rails are missing and the light influencing means 4 and the cell grid is directly visible. 3 also shows, in the inner housing 25, e.g. An electrical operating device 45 for the lamp 1 can be arranged on the floor 25a. In addition, two fastening screws 23 can be seen in this FIG. 3, which are arranged one behind the other in the longitudinal direction in the tapered end region of the housing 2.

In the rear end region of the housing 2, the associated holding or connecting means 3, here in the form of the upper profile rail 21, is shown mounted in FIG. 3.

Fig. 4 shows in perspective an end region of the housing 2 facing the bend, the holding means 3 and the connecting means 3a or the upper profile rail 21 for holding the lamp and / or a connecting part 28 for fastening or hanging the lamp 1 and on the visible side lower rail 37a are shown. The side walls 11 are disassembled and not visible. 5 shows the lamp 1 likewise with the side parts 11 removed, the further profile rail 39a and two fastening means 6 in the form of spring legs 36a with latching lugs 36b arranged one behind the other in the longitudinal direction being shown on the visible side. The lower profile rail 37a carrying the spring legs 36a is not shown. 6 to 8 a modified embodiment of the lamp 1 is shown, in which the same or comparable parts are provided with the same reference numbers.

A first design difference of this lamp 1 consists in the fact that the upper, inwardly offset edge areas lld are offset or molded with a lower inclination of the side walls in the side wall areas 11f, so that the side parts 11 have a lower height and are more compact than the first Embodiment according to FIG. 2. In the embodiment according to FIG. 7, the width and the height of the housing 2 are approximately the same.

In addition, the upper region of the upper profile rail 21 is formed with two rail webs 21 a, which are at a transverse spacing from one another, in the form of an upwardly open fork. Instead of a web extension 21c, an undercut longitudinal groove 21cl is arranged in the fork recess, in which a slide 28c of a connecting part 28 positively surrounds and is arranged to be displaceable in the longitudinal direction.

Another difference is that the ratio of the lengths of the edge sections 11a2 with respect to the edge sections 11a1 is greater. 1, the edge sections 11a2 are the same or only slightly larger than the edge sections 11a1, according to FIG. 6 the edge sections 11a2 are twice to about three times as long as the edge sections 11a1, the housing 2 preferably being longer, than the housing 2 in the exemplary embodiment according to FIG. 1. In this embodiment, the length of the side portion 11c can be, for example about 70% of the length of the housing 2 or the lamp. In the longer embodiment according to FIG. 6, the stability of the housing is ensured on account of the compact construction described above, which stabilizes the housing 2.

Another difference from the exemplary embodiment according to FIG. 2 is that the luminaire 1 emits indirectly effective light toward the side facing away from the radiation direction 8. This is achieved in that the reflector 17 is partially translucent and the cover 26 is translucent or partially translucent, in particular opal, so that light can radiate upwards from the side parts 11 and can cause indirect lighting. This function is also provided when there is no cover 26. It is also an as Spreading pallet formed cover 26 advantageous to scatter the light and to avoid that stripes are imaged on the ceiling.

Another difference can also be that the upper profile rails 21 extend into end recesses 26a of the cover 26. This not only increases the stability but also increases the longitudinal adjustment range for the connecting parts 28.

The partially transparent design of the reflector 17 can e.g. can be achieved in that in particular in the area below the upper housing opening 14 there is a through hole 17a or holes arranged next to one another in the reflector 17, through which part of the light is emitted upwards.

In order to improve the light conduction of the indirectly effective light in the housing 2, two side reflectors 46 are arranged on both inner sides of the side parts 11, which extend from the lower edge region of the reflector 17 to the upper edge region of the respectively associated side menu 11. The made of thin material e.g. made of sheet metal, existing side reflectors 46 can each consist of a wall section 46a which bears against the side wall of the associated side part 11 and which, in a curved or obtuse angle, preferably merges in one piece into a wall section 46b arranged converging inwards and downwards. In the

In the longitudinal direction of the lamp 1, the side reflectors 46 preferably extend over the entire length of the upper housing opening 14. The side reflectors 46 can be attached to the associated side part 11.

Within the scope of the invention, the luminaire 1 according to FIGS. 1 and 2 can also be used in a manner corresponding to the above-described configuration as an indirectly effective luminaire 1 with z. B. the same design features.

The above-mentioned Rulen in the adhesive surfaces of the z. B. made of light metal, especially aluminum, existing and preferably extruded profile rails 21, 37a and 39a can be attached to the extrusion in a simple and inexpensive manner.

The exemplary embodiment according to FIG. 9, in which the same or comparable parts are provided with the same reference numerals, differs from the exemplary embodiment according to FIG. 2 mainly in that an additional mechanical securing device 51 is provided for one of two connecting parts bonded to one another by the adhesive connection, which at a unwanted solution of the adhesive connection 13 can fall down. The falling down is prevented by the fact that the other connecting part is directly or indirectly connected to the housing 2 or an attachment part thereof by the securing device 51 and can therefore hold the connection part which has been released in an unaccustomed manner and can prevent it from falling down.

The securing device 51 preferably has a form-fitting effect, i.e. it has a securing element 51a on the part that is at risk of being dismantled, which overlaps a securing element 51b of the securing device, preferably over and behind it in a hook-shaped manner, so that lateral slipping is prevented. The corresponding securing element 51b can be attached directly or indirectly to the housing 2, for. B. on an arranged in the cavity 15 of the housing 2 Anbauteü, which is arranged in the upper region of the cavity 15 and can be a supporting part of the connection elements 16 for the light source. In such vehicles, in which the securing device 51 is arranged laterally with respect to the vertical longitudinal center plane E of the lamp 1, it is advantageous to improve safety to provide a securing device 51 on both sides of the longitudinal central plane E, the securing devices 51 preferably being arranged and formed in mirror image can.

The latter is the case in the present exemplary embodiment according to FIG. 2, in which the securing device 51 serves to secure a connecting part glued on the inside to the housing wall 2a for connecting the light-influencing element, the securing device 51 being arranged on one side in the cavity 15 of the housing and opposite one Provided mirrored and flattened securing device 51 is provided. The following description of the lamp 1 or safety device 51 according to the exemplary embodiment according to FIG. 9 is therefore restricted to one side of the lamp 1. On the opposite side, the lamp 1 is at least mirror-inverted with respect to the securing device 51.

In the exemplary embodiment according to FIG. 2, the securing element 51a is arranged on the intermediate piece 37 or on the profile rail 37a, preferably integrally molded thereon. It can be formed by a preferably tapered securing arm 51c which projects upwards from the upper end of the intermediate piece 37 and which can extend over the entire horizontal length of the intermediate piece 37. However, it can also be a rod-shaped securing arm 51c which projects upwards in the middle length region of the intermediate piece 37, or several z. B. two a horizontal distance from each other rod-shaped Securing arms 51c may be provided. The securing arm 51c is bent or angled inward at its upper free end, preferably hook-shaped, so that the free end of the hook points downward.

The securing element 51b is formed by or arranged on the reflector 17 and, in the exemplary embodiment, is formed by a lateral extension 17a, which preferably has an upwardly directed leg 17b which is overlapped and gripped from behind by the hook shape of the securing arm 51c. Thus, the reflector 17 can also be integrally formed with the securing element 51b, which can be a bent part or an extruded part.

The interlocking device forming the securing device 51 is preferably formed such that when the securing device 51 is assembled, the interlocking overlapping securing elements 51a, 51b come into their interlocking position by the assembly movement. There are therefore no special assembly movements required. In the exemplary embodiment, in which the intermediate pieces 17 are pre-glued to the housing walls 2a or the side parts 11, the reflector 17 is moved through the housing opening into the cavity 15 into its fastening or screwing position. The lateral extensions 17a or legs 17b automatically come under the securing elements 51a, in particular in their hook shape. In the event of an unwanted solution of one or both intermediate pieces 37, these remain in their suspended holding position, in which they are secured and hold the light influencing means 4 or the grid 31, due to the overlapping on the reflector 17.

Claims

Expectations

1. lamp (1) with an elongated housing (2) and in the housing (2) provided connection means (3a) for at least one lamp, characterized in that the housing (2) of two elongated side parts (11), each with an upper and a lower longitudinal edge (11a, 11b) is formed such that the upper longitudinal edges (11a) are connected to one another in sections, and that the lower longitudinal edges (11b) run at a distance from one another and delimit a lower light exit opening (5).

2. Lamp according to claim 1, characterized in that the side parts (11) are plate-shaped.

3. Luminaire according to claim 1 or 2, characterized in that the side parts (11) are shaped unevenly such that the interconnected upper longitudinal edge sections (llal) extending over a part of the height of the side parts (11) upper edge regions (lld) define that are essentially parallel.

4. Luminaire according to one of the preceding claims, characterized in that the side parts (11) are shaped unevenly such that the spaced-apart lower longitudinal edges (11b) extend over a part of the height of the side walls (11) lower edge regions ( lle) that are essentially parallel.

5. Luminaire according to claim 3 or 4, characterized in that the sections (lla2) of the upper longitudinal edges (11) which are not connected to one another run longitudinally at a distance from one another and delimit an upper housing opening (14).

6. Luminaire according to one of the preceding claims, characterized in that between the upper longitudinal edges (11) holding means (3) are included, which have for fastening connection means (3a) for the at least one lamp and / or for connecting to support members (28 ) are intended for the lamp (1).

7. Lamp according to claim 6, characterized in that the holding means (3) of upper profile rails (21) extending in the longitudinal direction of the lamp (1) are formed with undercuts and / or projections.

8. Luminaire according to one of claims 6 or 7, characterized in that the holding means (3) also carry a head reflector (17) extending above the connection means (3a) for the at least one lamp and reflecting downward.

9. Luminaire according to claim 5 and 8, characterized in that the head reflector (17) in the region of the upper light outlet opening (14) is at least partially permeable to moisture.

10. Luminaire according to one of the preceding claims, characterized in that fastening means (6) for light influencing means (4) to be used in the luminaire (1) are provided on the inner sides of the side parts (11) in their lower region.

11. Luminaire according to claim 10, characterized in that the fastening means are part of a latching device (36).

12. Luminaire according to claim 11, characterized in that the locking device (36) on spring arms (36a) arranged locking lugs (36b).

13. Luminaire according to one of the preceding claims, characterized in that the light influencing means (4) can be connected to the lower edge regions of the side parts (11) in such a way that the light influencing means (4) form a housing strut which acts paraüel to the outlet opening (5).

14. Luminaire (1) with a housing (2), with connection means (3a) for at least one lamp provided in the housing (2), and with a light influencing means (4), the lower housing edges (11b) having a light outlet opening (5) characterized in that the light influencing means (4) can be connected to the lower edge regions of the housing walls in such a way that the light influencing means (4) form a housing strut which acts parallel to the outlet opening (5).

15. Luminaire according to claim 14, characterized in that the side walls are elongated and preferably extend straight.

16. Luminaire according to claim 14 or 15, characterized in that the housing (2) by two elongated side parts (11) each with an upper and a lower longitudinal edge (11a, 11b), that the upper longitudinal edges (11a) in sections with each other are connected, and that the lower longitudinal edges (11b) run at a distance from one another and delimit a lower light exit opening (5).

17. Luminaire according to one of claims 13 to 16, characterized in that arranged on both sides pin connections (38) between the light influencing means (4) and the side parts (11) or side walls are arranged, which the light influencing means (4) and the side panel ( 11) or fix the side walls to each other parallel to the light exit opening (5).

18. Luminaire according to claims 13 to 17, characterized in that the housing strut or the pin connections (38) can be brought into operative connection at the same time when the light influencing means (4) are inserted into the housing (2).

19. Luminaire according to one of claims 10 to 19, characterized in that the fastening means (6) and / or the bracing parts and / or the pin connecting parts on intermediate pieces (37; 39) or professional rails (37a; 39a) which are arranged on the Light influencing means (4) and / or attached to the opposite side parts (11) or side walls.

20. Luminaire according to claim 19, characterized in that the pin connections (38) are formed by profile webs (38a) which surround in profile grooves (38b) and are integrally formed on the profile rails (37a, 39a).

21. Luminaire according to one of claims 10 to 20, characterized in that the light influencing means (4) are formed by reflecting raster elements.

22. Luminaire according to claim 21, characterized in that the grid elements are formed by two side grids and transverse lamellas running therebetween or by a single or multi-piece cell grid.

23. Luminaire according to one of the preceding claims, characterized in that the side parts (11) or side walls made of non-metallic material, preferably wood or Eternit.

24. Luminaire according to one of the preceding claims, characterized in that the luminaire has two connecting parts which are connected to one another to prevent it from falling down, preferably by gluing, or the side parts (11) to one another and / or the upper and / or lower profile rails ( 21; 37a; 39a) or the intermediate pieces (37, 39) are connected flat, preferably by gluing.

25. Luminaire according to claim 24, characterized in that the two connecting parts are detachably connected to each other in addition to the adhesive connection by a mechanical securing device (51).

26. Luminaire according to one of claims 5 to 25, characterized in that an operating device (45) and / or an inner housing (25) is arranged in the region of the upper housing opening (14) in the housing (2).

27. Luminaire (1) with a housing (2) which has a radiation opening, and in which connection elements (16) for a light source are arranged, the luminaire (1) having two connecting parts, characterized in that the connecting part is made by an adhesive connection (13), in particular to prevent them from falling, and that the two connecting parts are detachably connected to each other in addition to the adhesive connection (13) by a mechanical securing device (51).

28. Luminaire according to one of claims 25 to 27, characterized in that the securing device (51) is detachable.

29. Luminaire according to one of the preceding claims 25 to 28, characterized in that the securing device (51) has locking elements (51a, 51b) which are in positive engagement with one another.

30. Luminaire according to claim 29, characterized in that the securing elements (51a, 51b) form a hook connection.

31. Luminaire according to one of claims 25 to 30, characterized in that the securing device (51) between the housing (2) or a housing attachment (37) and an installation part, in particular a reflector (17), is effective in the housing (2) ,

32. Luminaire according to claim 31, characterized in that the housing add-on menu (37) has connecting elements which are parts of a connecting device, preferably a latching device (36), for connecting a light influencing element (4), in particular a grid (31) or reflector.