EP0898686B2 - Lighting fitting with a basic unit as support for at least one lamp - Google Patents

Abstract

PCT No. PCT/EP97/02509 Sec. 371 Date May 13, 1999 Sec. 102(e) Date May 13, 1999 PCT Filed May 15, 1997 PCT Pub. No. WO97/44616 PCT Pub. Date Nov. 27, 1997A light fitting (1) has a base body (2) on which can be mounted at least one lamp (23, 91), an operating device (12) and, optionally, reflectors (60). A fastener, which engages the base body directly, is provided for fixing the light fitting to a ceiling (71) or to a wall. The base body is formed with two side body walls (9) which enclose a trough-like space (11); and the fastener is accessible on the side of the base body walls which face the ceiling or the wall.

Description

The invention relates to a luminaire, which has a base body as a support for at least one lamp and a control gear and light distributor.

The main purpose of a lamp, namely to illuminate a room, various aspects can be assigned, whereby different requirements are placed on the light depending on existing illumination criteria.

Should e.g. If the room is only brightly lit, it is sufficient to assign a direct lighting device to the luminaire, which radiates the light into the room. If such a lamp to be at least partially glare-free, then it requires special measures to reduce the glare, at least in certain areas. For this purpose, a large number of so-called light distributors have already been developed, which also include reflectors and special measures for reducing the glare effect.

One of these measures may be to provide the lamp with a so-called reflector basket, which is arranged below a lamp and reflects the light impinging on him up against wing-shaped reflectors, which are associated wing-shaped on both sides of a base body of the lamp and the light in to reflect the room to be illuminated.

Such a lamp is in the EP 0 574 761 A1 the applicant described. In this known embodiment, the lamp is designed as a trough lamp and ceiling recessed luminaire. The base body in the form of a mounting rail for the reflector basket and the wing-shaped indirect reflectors are attached to a light well, which is inserted into an existing ceiling opening and secured by means located at the edge of the mounting hole fasteners on the ceiling.

Furthermore, from the AT 259691 As the closest prior art, a luminaire is known in which a lamp operating device in the form of a choke coil is mounted within a trapezoidal housing which is open toward the top.
The invention is based on the object, the lamp according to the AT 259691 to be changed so that it has an improved Lichverteilung.

This object is solved by the features of claim 1.

In the luminaire according to the invention according to claim 1, the base body exerts a supporting function for the lamp, wherein the fastening means engage directly on it. This embodiment allows a discontinuation of a conventional lamp housing, which not only material and weight but also the size and a considerable manufacturing cost can be reduced. In this case, the luminaire according to the invention is also of stable construction, because the inclusion of a luminaire housing, as is the case in the known embodiment, reduces the stability of the luminaire. The embodiment of the invention also allows a simple construction, since due to the direct attack of the fastening means on the base body, the number of individual parts of the lamp can be substantially reduced.

The subclaims contain features which further simplify and improve the design and assembly or disassembly of the luminaire, lead to cost-effectively producible designs, improve both the direct and / or indirect room lighting and the reflection of the light, improve the accessibility to the luminaire and also offer variation possibilities for the construction of the lamp.

Fig. 1

eine erfindungsgemäße Leuchte im vertikalen Querschnitt;

Fig. 2

einen Endbereich der Leuchte im vertikalen Schnitt;

Fig. 3a

ein Endteil der Leuchte in perspektivischer Ansicht von innen;

Fig. 3b

das Endteil in perspektivischer Ansicht von außen;

Fig. 4

eine erfindungsgemäße Leuchte im vertikalen Schnitt in abgewandelter Ausgestaltung;

Fig. 5a

ein Endteil der Leuchte nach Fig. 4 in perspektivischer Ansicht von innen;

Fig. 5b

ein Endteil der Leuchte in perspektivischer Darstellung von innen;

Fig. 6

eine erfindungsgemäße Leuchte in abgewandelter Ausgestaltung im vertikalen Schnitt;

Fig. 7

eine erfindungsgemäße Leuchte in weiter abgewandelter Ausgestaltung im vertikalen Schnitt;

Fig. 8

ein Endteil der Leuchte in perspektivischer Ansicht von innen;

Fig. 9

eine erfindungsgemäße Leuchte in weiter abgewandelter Ausgestaltung im vertikalen Schnitt;

Fig. 10

eine weitere Leuchte, welche nicht Gegenstand der Ansprüche ist, in sogenannter Explosionsdarstellung mit jeweils einer Mehrzahl ihrer Hauptteile zwecks Verdeutlichung von Variationsmöglichkeiter;

Fig. 10a

die Leuchte nach Fig. 10 in abgewandelter Detailausgestaltung im Schnitt;

Fig. 11

eine Leuchte in weiter abgewandelter Ausgestaltung die ebenfalls nicht Gegenstand der Ansprüche ist, in der Stirnansicht;

Fig. 12

die Leuchte nach Fig. 11 in der Seitenansicht.

The invention and further achievable by them advantages will be explained in more detail with reference to preferred embodiments and drawings. It shows

Fig. 1

a luminaire according to the invention in vertical cross-section;

Fig. 2

an end portion of the luminaire in vertical section;

Fig. 3a

an end portion of the lamp in a perspective view from the inside;

Fig. 3b

the end part in perspective view from the outside;

Fig. 4

a luminaire according to the invention in vertical section in a modified embodiment;

Fig. 5a

an end part of the luminaire after Fig. 4 in perspective view from the inside;

Fig. 5b

an end portion of the lamp in perspective view from the inside;

Fig. 6

a luminaire according to the invention in a modified embodiment in vertical section;

Fig. 7

a luminaire according to the invention in a further modified embodiment in vertical section;

Fig. 8

an end portion of the lamp in a perspective view from the inside;

Fig. 9

a luminaire according to the invention in a further modified embodiment in vertical section;

Fig. 10

a further lamp, which is not the subject of the claims, in a so-called exploded view, each with a plurality of its main parts for the purpose of clarifying possible variations;

Fig. 10a

the light after Fig. 10 in a modified detail design in section;

Fig. 11

a lamp in a further modified embodiment which also is not the subject of the claims, in the front view;

Fig. 12

the light after Fig. 11 in the side view.

The luminaire, generally designated 1, according to the invention is suitable for being fastened either directly or via suspension means to the ceiling of a room to be illuminated. It is in the context of Invention, however, also possible to attach the lamp 1 either directly or via spacer means on a wall.

In this case, the luminaire 1 may be formed with a direct lighting device 2 and / or a first indirect lighting device 3 and / or a second indirect lighting device 4. The direct lighting device 2 and the first indirect lighting device 3 are suitable for direct attachment of the luminaire 1, e.g. on the ceiling. The second indirect lighting device 4 is suitable for a spaced suspension or attachment.

Main part of the lamp 1 is a parallel to the support (ceiling, wall) and in particular straight extending base body 5, which has a triangular shape in cross section, with one side of the triangular shape - when mounted on the ceiling - is directed upwards. The downwardly facing corner of the triangular shape may be flattened horizontally, whereby a mounting surface 6 is formed for attachments of the base body 5.

The side surfaces 7 of the base body 5 extend upwards divergently, wherein they can run straight or slightly concave in this direction. In this case, the side surfaces 7 may be smooth or structured. In the present embodiment, they are slightly wavy in the horizontal direction, see the wave peaks denoted by 8, which result in structure with horizontal straight lines 8 on the side surfaces 7.

The vertical cross-sectional shape of the base body 5 is V-shaped. That is, the base body 5 has the side surfaces 7 containing V-shaped side walls 9, between which a top open space 11 is provided, which can serve in an advantageous and space-saving arrangement for receiving resources for the lamp 1, e.g. a ballast 12 and the like. Electrical parts for lamps, in particular fluorescent lamps. On the side thereof, there is still room for cable K and / or lines L in the free space 11. In the present embodiment, the bottom surface of the free space 11 is approximately at mid-height of the base body 5, preferably a horizontal mounting surface 13 at which the electrical connection - And / or operating parts such as the ballast 12 may be attached. In the lower and the upper mounting surface 6, 13 are each preferably centrally longitudinally extending screw channels 14, 15 are arranged, which serve the attachment of attachments of the base body 5. It is advantageous for reasons of weight and material saving to provide a cavity 18 between the bottom walls 16, 17 containing the cultivated areas 6, 13. In the present embodiment, the screw channels 14, 15 surrounded by U-shaped wall portions 19, 21, which can pass vertically or by a web 22 may be connected to each other, whereby the base body is stabilized.

In the present embodiment, the base body 5 is formed by a profile extending in its longitudinal direction, e.g. an extruded metal, preferably aluminum or plastic. The profile can also be a bent sheet metal part.

The base body 5 is a carrier of the direct light device 2 and the first and second indirect light device 3, 4, wherein the direct light device 2 or the first indirect light device 3 can each be present as a separate device or in combination. In this case, a lamp 23 arranged below the lower corner region of the triangular shape and preferably formed by a fluorescent tube can serve as a light source for the direct lighting device 2 and / or the first indirect lighting device 3. The fluorescent tube is held between arranged in the end regions of the correspondingly long sized lamp 1 fitting parts 24 which are arranged on the lower mounting surface 6 and are fastened by means of simplified and screwed in known manner in the associated screw 14 screws.

The direct lighting device 2 has a light distributor 25, which is preferably releasably attached to the latter by a quick-release connection or plug connection, here in the form of a latching device 26, in the lower corner region of the triangular shape of the base body 5.

In the present embodiment, the light distributor 25 is formed by a reflector 27, with two lateral, mirror images of the vertical longitudinal center plane 28 on both sides of the lamp 23 arranged side reflectors 29, the concave curved reflecting surfaces 31 for the reflection of the light down. In our area of the side reflectors 29 are for dazzle the direct light device 2 known transverse lamellae 32 disposed below the lamp 23, which engage with end fixing tongues 33, the reflector walls of the side reflectors 29 in slots and are deformed on the outside, so that the cohesion is ensured.

It is advantageous to design the side reflectors 29 with an inner and an outer wall with a double wall, wherein the fastening tongues 33 are arranged without interference in the cavity 37 present between the inner wall 35 and the outer wall 36.

It is also advantageous to connect the associated inner and outer walls 35, 36 in each case by a quick-release connection or connector 38 with each other. In the present embodiment, the inner walls 35 are bent in their upper and lower edge regions outwardly U-shaped. As a result, plug-in recesses 39 are created, in which the corresponding and correspondingly wide or high-dimensioned outer wall 36 can be inserted. It is advantageous to provide the outer wall 36 along their longitudinal edges, each with an obtuse or acute angle of about 45 ° enclosing edge legs 41 by molding or bending, whereby both the associated outer wall 36 itself and the receptacle in the associated jack is stabilized.

The front side of the reflector 27 is closed by means of two end caps 42, one of which in a perspective interior view in Fig. 5 is shown. The end caps 42 can be fastened to the side reflectors 29 by fastening elements (not shown for reasons of simplification).

The side reflectors 29, the inner walls 35, the outer walls 36, the transverse blades 32 and the end caps 42 may be made of metal, in particular aluminum or plastic. In this case, these parts may preferably be painted white or, in particular in the region of the reflective surfaces be shiny metallic.

The latching device 26 has one or two mutually opposite elastically resilient Verrastungsnasen which engage behind a latching edge in the Verrastungsstellung. In the present embodiment, two arranged on both sides of the longitudinal center plane 28 Verrastungsnasen 45 are provided which are arranged on spring arms 46 and thus can escape laterally and preferably dodge when attaching the reflector 27 to the base body 5 to each other and spring into undercuts 47. In the present embodiment, the Verrastungsnasen 45 and spring arms 46 are each formed by a arranged in the end region U-shaped leaf spring 48, which can rest with its web portion on the lower mounting surface 6 and is secured by a screwed into the associated screw 14 screw, wherein the Side legs form the spring arms 46 and the Verrastungsnasen 45 may be formed by bends or curls of the free ends of the leaf spring legs. The undercuts 47 are on the opposite sides of a Verrastungsleiste or - like Fig. 1 shows - arranged on the mutually facing sides of a Verrastungskulisse 49, wherein the undercuts 47 are preceded by bevels 51, at which when plugging in the reflector 27, the Verrastungsnasen 45 dodge and then spring into the undercuts 47.

Preferably, the undercuts 47 have chamfers 52, so that the latching can be achieved by a predetermined tensile force on the reflector, wherein the Verrastungsnasen 45 dodge the execution slopes 52 from its Verrastungsstellung.

Preferably, further undercuts 53 are provided above the undercuts 47 into which the latching lugs 45 engage in a suspended position of the reflector 27 in which manual accessibility to the lower corner region of the base body 5 and components fastened thereto is improved and / or the luminous power of the direct Lighting device 2 and the first indirect lighting device 3 can each be varied in opposite directions, which will be described below.

The further undercuts 53 are preferably formed with negative Verrastungskanten 54, so that no automatic execution of Verrastungsnasen 45 from these further undercuts 53 is possible at an increased Zugkraftausübung. As a result, the reflector 27 is secured against unintentional removal. The undercuts 47, 53 are pre-arranged introduction bevels 40a, 40b for the Verrastungsnasen.

As in particular from Fig. 2 it can be seen that the at least one undercut 47 having, in particular block-shaped component may be secured on the inside of the end cap 42, for example by screws. It is advantageous, this component - seen in the side view - Z-shaped crimp, so that its at least one undercut 47 exhibiting portion of the end cap 42 is spaced and can cooperate better in this position with the Verrastungsnasen 45.

It is within the scope of the invention, the light distributor 25 and the reflector 27 in the suspended position from the Verrastungseingriff on one side to solve and to pivot the other in the associated undercut 53 Verrastungsnase 45, whereby the accessibility due to a greater distance between light distributor 25 and base body 5 is further improved.

The above-described suspension can then be carried out when either the lamp 23 is disposed lower by the distance than the ridge region of the reflector 27 or the latter in its ridge region has a recess 55 whose width and length is greater than the width and length of the lamp 23rd including their socket parts, so that the lamp 23 is able to immerse when suspended in the recess 55.

In the presence of a combined direct lighting device 2 and a first indirect lighting device 3, the width is dimensioned so large that between the longitudinal edges of the recess 55 and the base body 5 in its lower corner region a distance b of about 3 to 10 mm, in particular about 5 mm, through which the light of the lamp 23 obliquely laterally upward radiate and the side area above the light distributor 25 and reflector 27 can illuminate, whereby an indirect illumination of the existing space takes place on both sides of the base body 5.

It is further advantageous to provide laterally or cantilevered flat Lichtverteilelemente 61 in the form of flat or thin wing discs of the two upper corner regions of the base body 5, which are preferably releasably connected to the base body 5 in its upper corner regions. For this purpose, quick-release connections are preferably provided to light distribution elements 61 of different width c and / or different shape and / or to be able to arrange different light-guiding properties optionally. The Lichtverteilelemente 61 could also be different in terms of their extension shape and also their material and training. Some embodiments will be described below. It may also be required and advantageous for various reasons to arrange the light distribution elements 61 in different inclinations optionally.

As a quick-release connection for the Lichtverteilelemente 61 is a detachable plug connection 62 with a plug recess 63 on the base body 5 is very advantageous, in which the light distribution element 61 can be inserted with little movement play. In particular, in a laterally obliquely upwardly extending arrangement of Lichtverteilelemente 61 while a secure fit in the respective plug recess 63 is ensured, so that an unintentional wandering out of the plug recess 63 is excluded.

In order to be able to form the plug-in recess 63 in the corner area, the base body 5 or its side walls 9 or its profile have inside material projections 64 or wall thickenings in which the jack 62 is located.

For the purpose of arranging the light distribution elements 61 in two different oblique positions, it is advantageous to arrange two plug-in recesses next to one another or one above the other in the desired oblique positions. It is particularly advantageous to assign to these two plug-in recesses 63a, 63b a common plug-in opening 63c, whereby a small or narrow construction is achieved. As the figures show, the two plug-in recesses 63a, 63b are separated or distanced from one another in the region of the recess base by a longitudinal web 65. The respective longitudinal web 65 forms contact surfaces for the light distribution element 61, which stabilize its position. To facilitate the insertion of the Lichtverteilelements 61 into the insertion opening 63c, it is advantageous to provide an insertion bevel 67 at least one longitudinal edge, here at the free end of the upper plug recess 63b upper side bounding wall leg 66.

The width c of the Lichtverteilelemente 61 may be different from arrangement case to arrangement case. When suspended from a ceiling lights 1, the width c may be so large that the free ends of the Lichtverteilelemente 61 project beyond the light 61 upwards.

In an arrangement of the lamp 1 directly or at a small distance from a ceiling 71, the Lichtverteilelemente 61 can be omitted or it can also narrow Lichtverteilelemente 61 are used, as it Fig. 4 shows. With such an arrangement, it is advantageous to dimension the width b of the light distribution elements 61 so that their free edges terminate at a distance d from the ceiling 71 (or wall), whereby shadow edges are formed which ensure a good appearance of the mounted lamp 1 , At the in Fig. 4 Training variant shown right, the light distribution element 61 at its free edge in a circular cross-section, if necessary, thickening in the sense of a bead 72, wherein the remaining, the respective plug recess 63a, 63b or just in the insertion opening 63c enclosing plug foot of this Lichtverteilelements 61 U-shaped can be shaped or folded, as is the Fig. 4 shows.

In the Fig. 4 is also a simple and inexpensive to produce and thereby works very well fastening device 75 for mounting the lamp 1 on the ceiling 71. This fastening device 75 comprises a longitudinally continuous or two or more distributed over the length range of the lamp 1 arranged U-shaped fastening clips 76 with a fastening web 77 for attachment to the ceiling 71 with at least one him in a hole passing through dowel (not shown) and side legs 78 extending from the fastening web 77 and preferably latching lugs 79 arranged on the outside in the area of their free edges for latching in latching recesses 81 on the base body 5, preferably in the region of the inner sides of its side walls 9. In the present embodiment, the latching recesses 81 are on the inside of the material lugs 64 arranged, wherein they are parts of the profile, so that they are formed continuously in the longitudinal direction of the base body 5. Therefore, in the presence of a plurality of fastening clips 76 whose position can be chosen arbitrarily, since the Verrastungsnasen 79 always fit into the locking recesses 81. In the present embodiment, the Verrastungsnasen 79 by U-shaped outside bent edge legs 82 which extend obliquely upwards and thereby form introduction bevels for the locking lugs 79. When attaching from below of the base body 5 on the mounting brackets 76, the side legs 78 soft automatically due to the insertion bevels and they then feather automatically into the recesses 61 a. In order to release this plug-in connection and snap-in connection, bending out of one of the two side legs 78 is required. This can be done with a pin-shaped tool through the distance d from the respective side.

For compensation of Lichtverteilelementen 61 different width b mounting brackets 76 can be optionally provided with different lengths side legs 78 and selectable in the assembly of the lamp 1. In this way, despite existing Lichtverteilelemente 61 different width, an optimal distance d can be determined.

In the Fig. 2 is hinted a suspension device 85 for suspending a lamp 1 on a ceiling, not shown in the suspended position. The suspension device 85 has a cable 86 which can be fastened to the ceiling in a customary manner (or Chain or the like.) On the height adjustable indirectly or directly with the base body 5 is connectable. In the present embodiment, this purpose is a cable clamping device 87 which is connected directly or by means of a connecting part 88 with the base body 5 and allows a clamping of the cable 86 in the desired height position. In each case, either a suspension device 85 in the middle position or two suspension devices 85 on both sides of the vertical longitudinal center plane 28 are arranged in both end regions of the luminaire 1.

In such a suspended arrangement, it is advantageous to provide the second indirect lighting device 4 to illuminate the ceiling area above the lamp 1 and thus to make the lighting for a handsome and on the other hand to achieve indirect lighting in the upper part of the lamp 1, the alone or in addition to the first indirect lighting device 3 may be arranged.

The second indirect lighting device 4 comprises a middle or two laterally arranged lamps 91 in the upper region of the base body 5 or above, which are also formed in the present embodiment by fluorescent tubes. As Fig. 2 shows, the lamp or the lamps 91 may be held in socket parts 92, which may for example have an angular or U-shaped form and thereby arranged on the upper mounting surface 13 and secured by means screwed into the screw 14 screw 94. In order to cover the front ends of the lamps 91, it is advantageous to arrange an aperture 95 in the end region of the luminaire 1 and to fasten it to the base body 5, as is apparent Fig. 1 and 2 can be seen. The panel 95 covers the front not only the lamps 91 but also the suspension 85 from. It may extend over the entire width of the base body 5 or beyond, it being advantageous in the latter case to adapt its side edges to the shape and / or inclination of the Licherverteilelemente 61, and wherein a distance e may be arranged therebetween. In the embodiment according to Fig. 1 Eg, the vertically arranged aperture is convex rounded at its upper free edge, whereby it receives a mushroom-like shape. However, it can also have other shapes. The panel 95 can be inserted with a central web in a plug-in recess or backdrop of the base body 5 from above, wherein it can extend obliquely vertically or outwardly.

The base body 5 is each frontally covered by a frontal cover, which may be, for example, a sheet or a thin end plate, which is connectable to the base body 5 with a quick-release connection or preferably plug-in connection. In the Fig. 3a and 3b in each case an end cap 97 is shown, the end face or end wall 98 extends vertically upward or divergent upwards, whereby it has extended side walls 9a, which may correspond to the end wall 98 of the contour and structure of the side surfaces 7. The end cap 97 has, on its side facing the base body 5, projecting plug pins 99, with which it can be inserted and clamped or snapped into suitable plug-in recesses of the base body 5, whereby it is held on the base body 5. As Fig. 3a shows, the aperture 95 may be integrally formed on the end cap 97. With 101 in each case a filler is designated, with which a prefabricated feedthrough hole 102 in the upper region of the end wall 98 can be filled, which serves as necessary for the implementation of electrical wiring, for example in an arrangement of several lights 1 in the form of a light strip. In the present embodiment, the filler 101 is formed in the form of a trough 103 with an end wall 103 a at the free end, which can conclude in the inserted position of the filler 101 with the end wall 98. For fixing the filling piece 101, a pin connection is provided, here with a pin 104 projecting downwards from the filling piece 101, which can be inserted into a pin hole 105 in an approximately horizontal intermediate wall 106 to which the filling piece 101 can be placed. In the inserted position, the filler 101 closes with the upper edge of the end cap 97. 107 with a through hole for cable K and / or lines L is referred to in the aperture 95. The cable gland can also be a in Fig. 2 suggestively illustrated tube serve 101 a, which passes through the end wall 97 at least partially.

In a divergent arrangement of the end wall 98 of the base body 5 or the end cap 97, it is advantageous for the light distribution elements 61 to divergent towards their outer edges, so that - as out Fig. 2 can be seen - the oblique end edges of the Lichtverteilelemente 61 are arranged approximately in alignment with the divergent or oblique end wall 98.

The luminaire is mirror-inverted in its end-side end regions. Therefore, there is no further description of the other end of the lamp 1.

In the embodiment according to Fig. 6 in which the same or similar parts are provided with the same reference numerals, the wing-like Lichtverteilelemente 61 are preferably integrally connected by at least one cross-connecting portion 111, which may extend between the base body 5 and the one or more lamps 91 over its length or end. In the embodiment according to Fig. 6 The cross-connecting portion 111 consists of a horizontally extending cross-connecting web 111 a and of this laterally downwardly angled cross-linking limb 111 b, to which the light distribution elements 61 connect in one piece. Due to this spatial form, the cross-connecting portion 111 can be advantageously integrated into the existing construction.

As the Fig. 6 and 8th show, it is advantageous to stabilize the free edges of the Lichtverteilelemente 61 by U-shaped rounded or angular downwards or upwards bends 112 or bends.

These stabilizations are particularly advantageous when the light distribution elements 61 are made of thin material, e.g. in a thickness of about 1 to 2 mm. In such a case, it is advantageous to make the cross-connecting portion 111 correspondingly thick.

With a relatively thin design of the light distribution elements 61, it is advantageous to stabilize them also in the region of their inner edge, ie in the connection region with the base body 5. In the embodiment according to Fig. 7 and 8th Edge arms 113 are arranged at the inner edges, which extend from the free end preferably rounded wedge-shaped to the outer edge of the associated Lichtverteilelements 61 and thereby include an acute angle W of about 10 to 15 °. As a result, a stabilized plug foot for the connector 62 is formed. These edge legs 113 may be bent or formed in the position shown. Despite the thin design, the support foot thus formed at the free edge of the Lichtverteilelements 61 has a width which is adapted to the width of the associated plug-in recess 63a. The edge leg 113 extends to the insertion opening 63c, so that the existing wedge shape fills the insertion opening 63c. For further stabilization, it is advantageous to clamp a cross-sectionally preferably round, for example pin or bar-shaped clamping piece 114 between the light distribution element 61 and its edge leg 113 in the region of the plug opening 63c, wherein the cross-sectional dimension of the clamping piece 114 is to be sized correspondingly large. The arrangement can be made so that the clamping piece 114 remains in its clamping position due to self-locking wedge effect. To secure the clamping piece 114, however, also a hold-down 115 may be provided, which may correspond in its dimension and shape about the cross-connecting portion 111, ie a hold-down 115a and lateral hold-down limb 115b, with which it the existing on both sides of clamping pieces 114 in the clamping position guaranteed. The hold-down device 115 may be fastened in a form-fitting manner or through screws which pass through it and are screwed into the base body 5 or attachments thereof (not shown).

It is also possible to attach the hold-down device 115 or the clamping piece 114 to the base body 5 by means of a quick-release connection. This can be done according to Fig. 7 and 8th be effected by a C-shaped bracket 116 which is pivotally connected at its base end to the hold-down 115 or the clamping piece 114 or is so elastic that it can be latched with a arranged in its free end region Ausformaltungsnase 117 in a recess. In the present embodiment, a clip 116 is provided in the form of a C-shaped leaf spring, which extends in a C-shape around the material insert 64 and in the free end region of the Verrastungsnase 117 as a wedge-shaped inflection and a protruding strip-shaped manual attack element 118 bent to loosening in one piece is. On the other side of the lamp, these embodiments can be arranged in mirror image.

In the embodiments according to Fig. 7 and 8th , in which identical or comparable parts are likewise provided with the same reference numerals, the light distribution element 61 has the shape of a channel-shaped basket 121, wherein the cross-sectional shape of the basket is rounded ( Fig. 8 ) or with a plurality, eg four, each an obtuse angle between them enclosing flanks 122 (FIG. Fig. 7 ) may be formed, wherein the trapped by the flanks 122 corners are preferably rounded. The top of the basket 121 may be horizontal or inclined outwardly on both sides. The basket 121 is fastened with its end walls 121a directly or by means of the quick-release connection or latching device 26 on the base body 5 releasably.

The design of the light distribution element 61 as a basket 121 is particularly advantageous when the first indirect lighting device 3 is to be metered more light output. For this purpose, the basket 121 may be formed on its inner side as a reflector which reflects the light rays supplied from the lamp 23 at least partially upwards through the upper-side basket opening, see distances b.

In the context of the invention, it is possible to vary the illumination power for the direct lighting device 2 and the first indirect lighting device 3 and the second indirect lighting device 4. This can be done by the reflector 27 or the side reflectors 29 or the inner and outer walls 35, 36, and / or the Lichtverteilelemente 61 and / or the basket 121 made of translucent or translucent and / or perforated walls, so that in each case according to the light transmittance of one or the other lighting device 2, 3, 4 more luminous power can be attributed. This also applies to the end-side aperture 95, which contribute in a corresponding manner to the indirect lighting, in particular in the frontal region of the lamp 1.

In all the above-described embodiments, the Lichtverteilelemente 61 may extend straight or concave curved, where they can form extensions of the contour shape of the side surfaces 7 (eg Fig. 7 and 8th ) or, for example, can be straight and slightly angled downwards ( Fig. 1 ). The Lichtverteilelemente 61 thus form indirect distribution elements that contribute both to the illumination of the room and to illuminate the space above the lamp 1, both in direct attachment to the ceiling 71 as well as suspended attachment. The The above-described property depends on the design of the light distribution elements 61, namely translucent, translucent and / or perforated. If the light distribution elements 61 have reflective surfaces 61a on their undersides, which can be formed, for example, by a coating, they form indirect reflectors. They may be translucent, translucent and / or perforated at the same time for the purpose of illuminating the space above it.

The side surfaces 7 of the base body 5 may be reflective (blank or coated) and form reflection surfaces.

It is also advantageous to form the cross-connecting portion 111 or the hold-down 115 on its upper side as a reflector, so that light incident from the lamps is reflected against the ceiling, which also contributes to the indirect illumination of the ceiling area.

With the representation of the lamp 1 according to Fig. 9 should be clarified the possible variations that allow the inventive design. Namely, it is possible to equip one and the same base body 5 optionally with a light distribution element 61 in the form of a reflector 27 with an inner wall 35 and outer wall 36, a reflector 27a with only one inner wall 35 or with a basket 121. This also applies to the Lichtverteilelemente 61 in the described, various embodiments, which can be optionally attached to the base body 5. This is possible because the respective connecting device parts of the aforementioned selectively attachable parts (light distributors 25, light distributing members 61) fit to the associated connecting device parts on the base body 5

In particular, when the outer walls 36 on the reflector 27 a in Fig. 9 are not present, but even if they are present, it is for reasons of simplification possible and advantageous to form the end caps 42 as flat end walls. It is also advantageous to arrange on the end caps 42, 121a or end walls on the upper side protruding fitting pieces 121b, which fit for the purpose of lateral centering in the lower screw 14, as it Fig. 5b exemplifies.

Figure 10 shows a lamp, which is not the subject of the claims. In this luminaire, in which the same or comparable parts are likewise provided with the same reference numerals, the direct lighting device 2 has one or more radiators 125 which are preferably connected to the lower corner area of the base body 5 by means of a quick-release connection 126 or a longitudinal sliding guide 127 , preferably longitudinally displaceable in the sliding guide 127 and lockable by a locking device 128. The sliding guide 127 can extend over the entire length of the base body 5 or only over a partial area thereof, wherein a plurality of sliding guides 127 can also be arranged one behind the other in the longitudinal direction.

As Fig. 10 shows, the sliding guide 127 is formed by a guide profile 128 with undercut guide surfaces 129 to which a guide 125 carrying the radiator guide 132 is guided guided and displaceable. The respective determination of the locking device can be done for example by a manually operable screw 133.

The guide profile 128 may be on the lower mounting surface 6 or on a particular mounting surface 134 defined by a lower-side recess, e.g. a cutout, can be formed. In the present embodiment, the mounting surface 134 is located between the two screw 14, 15th

The blasting head 125a of the emitter 125 is preferably pivotable and lockable by means of a locking device 125b in the respective pivoting position.

In order to connect the at least one radiator 125 to the electrical power supply, the mounting foot or the guide profile 128 busbars for the electrical circuit can be assigned (not shown), which are connected to current collectors (contacts or sliding contacts) of the circuit.

In the context of the invention, it is possible and advantageous to use the indirect reflectors 60 and / or the outer surfaces of the reflector 27 as an advertising space for advertising.

In the embodiment not falling within the scope of the claims FIGS. 11 and 12 in which the same or comparable parts are provided with the same reference numerals, in the lower Eckenbreich of the base body 5 a preferably also formed by a quick-release connection or plug device fastening device 141 for a panel 142 or the like. Arranged on the side surfaces also advertising space for advertising or wing for written or graphic references, eg directional arrows 143 and / or words, such as emergency exit, are applied. This embodiment is advantageous because on the one hand, the advertising space or wing can be mounted in a highly visible position below the lamp 1 and is illuminated to the other of the lamp 1.

As the FIGS. 11 and 12 show, for example, the fastening device 141 may be formed by a sliding guide, in particular a guide groove 144 of a guide rail 145, in which a correspondingly shaped holding foot 146 of the panel is inserted and held in a form-fitting manner. The guide rail 145 may also be formed as a lamp housing with a lamp 147 for illuminating the panel 142.

It is also possible to arrange two panels side by side, each having on its outside the advertising space or wing. It is advantageous to produce the at least one panel 142 of translucent or translucent material, preferably plastic.

Within the scope of the invention it is also possible the lamp 1 not in a straight extension but, for example, round form (rotation profile).

Claims (16)

1. Luminaire (1) having a base body (5) as carrier for at least one lamp (23, 91) and an operating apparatus (12), and for light diffusers, and having means (75; 85) for securing the luminaire (1) to a ceiling (71) or a wall, the base body (5) having two lateral body walls (9) enclosing a trough-like space (11) having in cross-section a triangular basic form, and the body walls (9) converging towards the side away from the securing means (75; 85),
   wherein the trough-like space (11) is approximately of the same size as or is larger than the operating apparatus (12) and the latter is arranged in the space,
   wherein the corner formed by the lateral body walls (9) has a flattening which forms a first mounting surface (6) for mounted parts of the base body (5),
   wherein there are arranged on the first mounting surface (6) fitting parts for holding an elongate fluorescent tube,
   wherein the base body (5) has a second mounting surface (13) which is accessible from the side towards the securing means (75; 85) and is a floor surface of the trough-like space (11), wherein there is attached to the second mounting surface an operating apparatus (12) for operating the fluorescent tube, and
   wherein the luminaire (1) has, on one or on both sides of the base body (5), a light diffuser element (61) which extends directly from the base body (5) in the manner of a wing.
2. Luminaire (1) according to claim 1,
   characterised in that,
   the base body (5) accommodates the electrical operating means of the luminaire (1) and/or electrical conductors (L).
3. Light according to claim 1 or 2,
   characterised in that,
   the body walls (9) are concavely curved.
4. Light according to any preceding claim,
   characterised in that,
   the base body (5) extends in a straight manner.
5. Light according to claim 4,
   characterised in that,
   the base body (5) is an extruded profile and is preferably of metal, in particular aluminium, or plastics.
6. Luminaire according to any preceding claim,
   characterised in that,
   the mounting surface (6) is flat.
7. Luminaire according to any preceding claim,
   characterised in that,
   on the side of the base body (5) towards the securing means (85) there are provided holding means (92) for at least one lamp (91) which are preferably arranged on the floor of the space (11).
8. Luminaire according to any preceding claim,
   characterised in that,
   on the first mounting surface (6) there are arranged additional holding means (26) for a light diffuser (25) .
9. Luminaire (1) according to any preceding claim,
   characterised in that,
   for the holding of the light diffuser element (61) there is provided a quick-fastening connection, in particular a plug-in connection (62), into which the light diffuser element (61) can be inserted.
10. Light according to claim 9,
    characterised in that,
    the quick-fastening connection or plug-in connection (62) is arranged in the corner region of the side of the base body (5) towards the securing means (75, 85).
11. Light according to claim 9 or 10,
    characterised in that,
    the plug-in connection (62) is formed by means of a plug-in recess (63) into which the associated light diffuser element (61) can be inserted.
12. Luminaire according to claim 11,
    characterised in that,
    the plug-in recess (63) extends obliquely to the side of the base body (5) towards the securing means (75; 85).
13. Luminaire according to claim 11 or 12,
    characterised in that,
    the plug-in recess (63) has, within a common plug-opening (62c), two plug-in recess sections (63a, 63b) each for the light diffuser element (61).
14. Luminaire (1) according to any preceding claim,
    characterised in that,
    the base body (5) has on the first mounting surface (6) holding means (26) for a light diffuser (25) and, in its region towards the securing means (75; 85), holding means (62) for at least one laterally projecting light diffuser element (61), whereby from a plurality of different light diffusers (25; 27, 27a; 121) a selected light diffuser can be mounted on the base body (5) by means of suitable holding means (2 6) and/or of a plurality of different light diffuser elements (61) a selectable light diffuser element (61) can be mounted on the base body (5) with the holding means (62).
15. Luminaire according to claim 14,
    characterised in that,
    the holding means (26, 62) are quick-fastening connections, in particular plug-in connections or latching connections (26).
16. Luminaire (1) according to any preceding claim,
    characterised in that,
    the base body (5) is accessible for the securing means (75; 85) at its side towards the ceiling (71) or the wall, and the securing means (75; 85) are arranged within the width of the base body (5) and engage directly thereon.

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