EP1979670B1 - Elongate luminaire with end regions which are tapered in cross section - Google Patents

Elongate luminaire with end regions which are tapered in cross section Download PDF

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Publication number
EP1979670B1
EP1979670B1 EP07700183A EP07700183A EP1979670B1 EP 1979670 B1 EP1979670 B1 EP 1979670B1 EP 07700183 A EP07700183 A EP 07700183A EP 07700183 A EP07700183 A EP 07700183A EP 1979670 B1 EP1979670 B1 EP 1979670B1
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EP
European Patent Office
Prior art keywords
cover
housing
luminaire
cross
longitudinal middle
Prior art date
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Active
Application number
EP07700183A
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German (de)
French (fr)
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EP1979670A1 (en
Inventor
Wolfgang Gadner
Bernd Walser
Patrik Gassner
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Zumtobel Lighting GmbH Austria
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Zumtobel Lighting GmbH Austria
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Publication of EP1979670A1 publication Critical patent/EP1979670A1/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • F21S8/04—Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V3/00—Globes; Bowls; Cover glasses
    • F21V3/02—Globes; Bowls; Cover glasses characterised by the shape
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V31/00—Gas-tight or water-tight arrangements
    • F21V31/005—Sealing arrangements therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V5/00—Refractors for light sources
    • F21V5/02—Refractors for light sources of prismatic shape

Definitions

  • the invention relates to a luminaire according to the preamble of claim 1.
  • a lamp of this type is formed with a two-part housing, of which one part is a trough-shaped housing, the fastening elements for attachment to a support, for.
  • the other part is formed by an at least partially transparent cover, which is releasably connected by closure elements with the trough-shaped housing.
  • a lamp can be mechanically and electrically connected, the radiated during operation light emits through the transparent cover for room lighting.
  • the side walls of the housing and / or the cover or the wall of the cover extend in the region of their ridge profile-like parallel to the longitudinal direction of the lamp.
  • a lamp of this type is z. B. in the EP 0 785 391 A1 described.
  • luminaire are used to attach the cover to the trough-shaped housing in principle C-shaped closure elements, which are formed as separate components, and of which engages an end portion of the C-shape with a locking leg in a pocket-shaped undercut on the trough-shaped housing, over the Dividing joint between the trough-shaped housing and the cover extends beyond and engages with its other end portion of the C-shape edge of the cover with a tensile stress and thereby compresses the trough-shaped housing and the cover with an elastic clamping voltage.
  • a present luminaire is a typical mass product, on the one hand intended to reduce the wall thicknesses to a required minimum in order to save a material and the other weight.
  • care must be taken to ensure that sufficient stability, in particular of the cover but also of the trough-shaped housing, is achieved.
  • a light exit element which is formed in sections of truncated cone sections, from the representations of GB 672 705 A or the EP 0 242 316A known.
  • the invention is therefore based on the object in a luminaire of the type specified to expand the design possibilities of the shape of the lamp. Furthermore, it is desirable to stabilize at least the cover and preferably also the housing.
  • the cover and preferably also the housing are cambered, such that they have larger cross-sectional dimensions in their central region than in their end regions.
  • the side walls of the cover bulged
  • the cover and preferably also the housing each extending over a large part of its length cross-sectional size, which differs from a profile shape and tapers from the central longitudinal region to the associated end regions.
  • the cover and preferably also the housing both in terms of the required space and functionally, in particular taking into account on the one hand the heat generated in operation in the lamp and on the other with respect to the panel of the lamp a favorable shape.
  • the cover and preferably the housing is substantially stabilized. Therefore, the inventive design makes it possible either to stabilize the lamp or the cover or to reduce the wall of the housing and / or the cover with a sufficient stability, so that material and / or weight can be saved.
  • the inventive design results in a simple and inexpensive producible form for the housing and / or the cover.
  • the shape profile deviating from a profile shape according to the invention can be achieved both when the dimension or width of the housing and / or the cover extending substantially parallel to the dividing or opening plane decreases continuously from the middle region to the ends and / / or the dimension or depth extending substantially perpendicular to the split plane progressively decreases from the central region to the ends.
  • a particularly advantageous form results when the dimension extending substantially parallel to the pitch plane decreases more than the dimension substantially perpendicular to the pitch plane.
  • the light guide ribs it is further advantageous to form the light guide ribs so that over the length of the lamp or cover, a substantially same photometric effect is achieved. This can be achieved if the light guide ribs z. B. extend along the lamp extending and angularly offset planes, which are all in a straight and also longitudinal common cut line.
  • the Lichtleitrippen may have different cross-sectional shapes to z. B. in lateral and lower-side peripheral areas to achieve a different light emission.
  • the main parts of in Fig. 1 in their entirety designated 1 luminaire are a trough-shaped housing 2, a so arranged by a plurality of circumferentially arranged closure devices 3 releasably connected cover 4 and a cavity 5 between the trough-shaped housing 2 and the cover 4 arranged lamp 6, which at least a mechanical and electrical connection element is connected and held.
  • the cover 4 is dome-shaped. Their wall 4a thus extends in cross-section arcuate or U-shaped.
  • the embodiment is a wet room light, which meets in this regard special protection requirements, eg. B. against the ingress of spray water, inter alia, in the region of the dividing joint 7 between the trough-shaped housing 2 and the cover 4, is splash-proof.
  • This protection can be formed in the region of the dividing joint 7 by comb-like intermeshing webs 8a, 8b, 8c extending circumferentially in the circumferential direction, which form a labyrinth which provides protection against the penetration of sprayed water. ( Fig. 4 ).
  • the trough-shaped housing wall 2a branches in its free edge region to two wall webs 8a, 8b, which have a transverse distance from one another, which is larger than a wall web 8c bordering the wall webs 8a, 8b with a transverse spacing, which transverse to the parting line 7 of the z.
  • opposite trough-shaped or dome-shaped cover wall 4a protrudes.
  • the dividing joint 7 is preferably sealed in addition to the labyrinth by a ring seal having a sealing ring D, the z. B. in the reason between the wall webs 8a, 8b existing circumferential groove 2b is arranged, and presses against the wall web 8c.
  • the sealing ring D is made of soft elastic material, for. B. from a foam tape.
  • the outer wall web 8b of the housing wall 2a is part of a widening step 9 in the free edge region of the housing wall 2a.
  • the housing wall 2a has on its a carrier, for. As a ceiling or wall of a room, facing investment side 11 fasteners 12, which serve the attachment to the carrier.
  • the lamp 1 has an elongated and straight-extending shape whose length L1 is a multiple of its width B. Accordingly, the trough-shaped housing 2 and the cover 4 are formed. This consists at least in their housing 2 remote from the dome area or the embodiment of a total of a transparent material, for. As glass or plastic, through which the light of the lamp 6 in the main emission direction S but also radiates to the sides.
  • the housing 2 is made of plastic, in particular of a thermosetting plastic.
  • closure devices 3 The majority of the existing closure devices 3 are arranged and formed mirror-inverted relative to one another or on both sides. It is therefore sufficient if only one closure device 3 is described below in each case.
  • the closure device 3 has a closure element 3a in a generally C-shaped longitudinal cross-sectional shape, whose end portions are designated 3b, 3c, which engages behind the trough-shaped housing 2 with its upper end portion 3b and at the same time into a recess, in particular a pocket 13, engages in the housing 2, which is open to the dividing joint 7 side facing away.
  • the pocket 13 has two mutually opposite pocket walls 13a, 13b, which extend approximately parallel to the longitudinal center plane 15 and is adapted to the cross-sectional size of the end portion 3b with play or taking into account a clamping action.
  • the recess or pocket 13 may extend in the longitudinal direction of the lamp 1 in each case only to a portion or continuously.
  • the closure element 3a extends from the end portion 3b substantially in a matched to the associated outer shape of the housing 2 form the outside of the lamp housing to the cover 4 out, where it extends beyond the dividing joint 7 and out with the associated end portion 3c a widening step 10 engages behind the cover 4, optionally engages in a recess 10a formed thereon.
  • the latter is carried out with an angled or curved inwardly extending, the end portion 3c forming Hintergreifschenkel 3d, which is secured by a securing device 14 in its engaged position.
  • the securing device 14 can be formed thereby; that the Hintergreifschenkel 3d is biased obliquely inwardly against the widening shoulder 10 with respect to the transversely or perpendicular to the dividing joint 7 extending longitudinal median plane 15 of the lamp 1, so that this tension pulls him inward and not outward.
  • This is achieved in that the rear grip of the end portion 3c is arranged at a distance a from the longitudinal center plane 15, which is greater than the distance b of the rear grip of the end portion 3b of the longitudinal center plane 15.
  • Hintergreifschenkel 3d a clamping force 16 the effective direction includes an acute angle W1 with the longitudinal center plane 15.
  • This clamping force can be based on an elastic bending of the end region 3b and / or of the end region 3c and / or the shape of the closure element 3a that follows the widening step 9 with respect to the step shape.
  • the closure element 3a is formed by a web 3e extending flat over its entire length, the thickness of which is denoted by d.
  • the hook-shaped to the free end portion 3c projecting end portion 3b of the closure element 3a is locked by a locking device 17 in the pocket 13 against accidental withdrawal and thus loosening.
  • a locking device 17 may be based on different efficiencies, e.g. on clamping action.
  • the cover 4, and preferably also the housing 2 each have a convex cross-sectional shape which is visible in a viewing direction transverse to the longitudinal direction. This may be a cigar-shaped form.
  • the cross-sectional size of the lamp 1 or the cross-sectional size of the housing 2 and / or the cover 4 decreases continuously from the longitudinal center or a point in a central longitudinal region to the respectively associated free end region.
  • the substantially parallel to the plane of the opening 4b of the housing 2 and / or the cover 4 extending Width B continuously decrease from the central area to the free end areas, as is the case in particular Fig. 2, 3rd . 6 and 7 can be seen.
  • the depth T extending at right angles to the plane of the opening 4b of the housing 2 and / or the cover 4 may be continuously reduced from the central area to the respectively associated free end area of the cover 4.
  • this depth T can also be the same size at least in the central longitudinal region L2 of the cover 4 or of the housing 2, which is shown in FIG Fig. 1 is shown.
  • the longitudinal crest line 4c of the cover 4 extends substantially straight at least in the longitudinal region L2.
  • the cross-sectional size or depth of the housing and / or the cover can be reduced from the longitudinal center or a point in a central end region to the respectively associated end region.
  • the side walls 2a, 4a of the housing 2 and / or the cover 4 are bulged laterally over substantially the entire length L1 or outside a central longitudinal region of the luminaire 1, so that the width B starts from the longitudinal center or from one point in the central longitudinal region L2 to the respective associated end portion of the housing 2 and / or cover 4 continuously reduced towards.
  • the wall 4a may also extend as a whole or at least in the longitudinal region L2 straight and substantially parallel to the contact side 11, so that the depth T of the luminaire 1 or the cover 4 substantially over at least the central longitudinal region L2 Whole length L1 is equal, apart from the curves at the ends of the lamp 1 and the cover. 4
  • the contact side 11 is formed so that it is flat overall or that at least the majority of the existing contact points lie in a plane.
  • the convergence of the width B of the housing 2 and / or the cover 4 and the convergence of the depth T of the cover 4 may be the same or different.
  • the convergence of the width B is greater than the convergence of the depth TD h.
  • the width B decreases towards the free end more than the depth T. This can be particularly in the Fig. 1 and 6 the latter, the section VI-VI in Fig. 2 shows.
  • Fig. 6 which shows the cross section located between the longitudinal regions L2 and L3, shows the width convergence due to the difference between the middle width B and the width B1 narrowed in section.
  • the cover 4 forms a light-guiding element that the light emitted by the lamp 6 and a reflector R located above and held on the housing 2 in the environment of the cover 4, i. into the room to be illuminated, into it.
  • the aim is to design the cover 4 in such a way that, in the presence of the lateral bulges 21 and the bulge 22 on the apex line 4c, the photometric effect is essentially the same over substantially the entire length L1 or L3. It is desirable that at any point over the length of the bulges 21, 22, the substantially same lighting effect is achieved.
  • a central illumination zone W1 arranged in the ridge region of the cover 4 and two illumination zones W2 adjoining on both sides are present which extend approximately to the edge of the wall 4a of the cover 4 and are each bounded by an angular range.
  • ribs 23 which are arranged directly next to one another and are triangular in cross-section are also provided, whose lamp 6 or light-coupling surfaces 23a, 23b facing the plane of the opening 4b are flat surfaces.
  • the angles of the coupling surfaces 23a, 23b are formed on both sides of the vertical longitudinal center plane of the lamp 1 or cover 4 mirror-symmetrically and arranged so that in the Illumination zones W1, W2 the desired light control and light emission is achieved in the room to be illuminated inside.
  • the row of the light guide ribs 23 extends approximately to the free edge of the wall 4a, which lies in a plane E, which is arranged in the mounted state approximately in the plane of the opening 4b of the housing 2.
  • the ribs 23 in the longitudinal direction of the lamp 1 and the cover 4 are formed so that an equal lighting effect over the length of the wall 4a or in the region of the end walls 4d is achieved.
  • the width e and preferably also the height h of the preferably directly juxtaposed ribs 23 tapers towards the opposite ends of the cover 4, preferably in the ratio of the respective existing convergence of the respective cross-sectional dimension of the dome-shaped cover 4.
  • the ribs 23 are located in relation to one another angularly offset planes E1, which all intersect in a longitudinal line 24, which is located in the region between the central axis of the lamp 6 and the associated electrical and mechanical connection means and the edge plane E, preferably in the edge plane E.
  • the ribs 23 may leak into the end walls 4 d of the cover 4, as it Fig. 3 and 7 show, or the ribs 23 may each end in the transition region to the end walls 4b, as the section in Fig. 6 shows. In Fig. 7 the longitudinal edges of the ribs 23 are not shown in the left half of the picture for reasons of simplicity.
  • the positions of the closure devices 3 and the webs 3e of the closure elements 3a are adapted to the bulge 21 and bulged outside, so that their in Fig. 2 visible center axes each include an acute angle W3 between them.

Abstract

Luminaire (1), in particular damp-proof luminaire, having an elongate, trough-shaped housing (2), terminals arranged therein for at least one lamp (6), a transparent cover (4) covering the opening of the housing (2) and longitudinally extending fiberoptic ribs (23), which are preferably provided, in the cover (4). In order to broaden the possibilities in design terms of the cover (4), at least one cross-sectional dimension (B, T) of the cover (4) is reduced from its longitudinal center or a point in a longitudinal center region (L2) towards the respectively associated end region of the cover (4).

Description

Die Erfindung betrifft eine Leuchte gemäß dem Oberbegriff des Anspruchs 1.The invention relates to a luminaire according to the preamble of claim 1.

Eine Leuchte dieser Art ist mit einem aus zwei Teilen bestehenden Gehäuse ausgebildet, von denen der eine Teil ein wannenförmiges Gehäuse ist, das Befestigungselemente zum Befestigen an einem Träger, z. B. einer Wand oder einer Decke, aufweist, und der andere Teil durch eine wenigstens teilweise transparente Abdeckung gebildet ist, die durch Verschlusselemente mit dem wannenförmigen Gehäuse lösbar verbunden ist. In dem durch das wannenförmige Gehäuse und die Abdeckung gebildeten Leuchtengehäuse ist eine Lampe mechanisch und elektrisch anschließbar , deren im Betrieb abgestrahltes Licht durch die transparente Abdeckung zur Raumbeleuchtung abstrahlt. Bei dieser vorbekannten Leuchte erstrecken sich die Seitenwände des Gehäuses und/oder der Abdeckung oder die Wand der Abdeckung im Bereich ihres Firstes profilartig parallel zur Längsrichtung der Leuchte.A lamp of this type is formed with a two-part housing, of which one part is a trough-shaped housing, the fastening elements for attachment to a support, for. As a wall or a ceiling, and the other part is formed by an at least partially transparent cover, which is releasably connected by closure elements with the trough-shaped housing. In the lamp housing formed by the trough-shaped housing and the cover, a lamp can be mechanically and electrically connected, the radiated during operation light emits through the transparent cover for room lighting. In this prior art lamp, the side walls of the housing and / or the cover or the wall of the cover extend in the region of their ridge profile-like parallel to the longitudinal direction of the lamp.

Eine Leuchte dieser Art ist z. B. in der EP 0 785 391 A1 beschrieben. Bei dieser vorbekannten Leuchte dienen zum Befestigen der Abdeckung am wannenförmigen Gehäuse prinzipiell C-förmige Verschlusselemente, die als separate Bauteile ausgebildet sind, und von denen der eine Endbereich der C-Form mit einem Arretierschenkel in eine taschenförmige Hinterschneidung am wannenförmigen Gehäuse eingreift, sich über die Teilungsfuge zwischen dem wannenförmigen Gehäuse und der Abdeckung hinaus erstreckt und mit seinem anderen Endbereich der C-Form einen Rand der Abdeckung mit einer Zugspannung hintergreift und dadurch das wannenförmige Gehäuse und die Abdeckung mit einer elastischen Klemmspannung zusammendrückt.A lamp of this type is z. B. in the EP 0 785 391 A1 described. In this prior art luminaire are used to attach the cover to the trough-shaped housing in principle C-shaped closure elements, which are formed as separate components, and of which engages an end portion of the C-shape with a locking leg in a pocket-shaped undercut on the trough-shaped housing, over the Dividing joint between the trough-shaped housing and the cover extends beyond and engages with its other end portion of the C-shape edge of the cover with a tensile stress and thereby compresses the trough-shaped housing and the cover with an elastic clamping voltage.

Bei einer vorliegenden Leuchte handelt es sich um ein typisches Massenprodukt, bei dem zum einen angestrebt wird, die Wandstärken auf ein erforderliches Minimum zu reduzieren, um zum einen Material und zum anderen Gewicht einzusparen. Insbesondere bei einer länglichen Leuchte ist jedoch darauf zu achten, dass eine hinreichende Stabilität insbesondere der Abdeckung aber auch des wannenförmigen Gehäuses erreicht wird.A present luminaire is a typical mass product, on the one hand intended to reduce the wall thicknesses to a required minimum in order to save a material and the other weight. However, in particular with an elongated luminaire, care must be taken to ensure that sufficient stability, in particular of the cover but also of the trough-shaped housing, is achieved.

Zur Verbesserung der Stabilität ist beispielsweise ein Lichtaustrittselement, welches abschnittsweise aus Kegelstumpfsektionen gebildet ist, aus den Darstellungen der GB 672 705 A oder der EP 0 242 316 A bekannt.To improve the stability, for example, a light exit element, which is formed in sections of truncated cone sections, from the representations of GB 672 705 A or the EP 0 242 316A known.

Weiterhin ist zur Weiterbildung der funktionalen Eigenschaften der Leuchte, bei gleichzeitiger Erhöhung der Stabilität, die Verwendung von lichtlenkenden Prismenstrukturen beispielsweise in der DE 37 29 554 A1 dargelegt.Furthermore, the development of the functional properties of the lamp, while increasing the stability, the use of light-guiding prismatic structures, for example in the DE 37 29 554 A1 explained.

Es ist somit eine gestalterisch, statisch und funktionell günstige Form der Leuchte angestrebt.It is thus a design, statically and functionally favorable form of the luminaire sought.

Der Erfindung liegt deshalb die Aufgabe zugrunde, bei einer Leuchte der eingangs angegebenen Art die gestaltungstechnischen Möglichkeiten der Form der Leuchte zu erweitern. Ferner ist angestrebt, wenigstens die Abdeckung und vorzugsweise auch das Gehäuse zu stabilisieren.The invention is therefore based on the object in a luminaire of the type specified to expand the design possibilities of the shape of the lamp. Furthermore, it is desirable to stabilize at least the cover and preferably also the housing.

Diese Aufgabe wird durch die Merkmale des Anspruchs 1 gelöst. Vorteilhafte Weiterbildungen der Erfindung sind in den Unteransprüchen beschrieben.This object is solved by the features of claim 1. Advantageous developments of the invention are described in the subclaims.

Bei der erfindungsgemäßen Leuchte sind die Abdeckung und vorzugsweise auch das Gehäuse bombiert geformt, derart, dass sie in ihrem mittleren Bereich größere Querschnittsabmessungen als in ihren Endbereichen haben. Dabei sind die seitenwände der Abdeckung ausgebaucht Hierdurch erhält die Abdeckung und vorzugsweise auch das Gehäuse jeweils eine sich über einen großen Teil ihrer Länge erstreckende Querschnittsgröße, die von einer Profilform abweicht und sich vom mittleren Längsbereich zu den zugehörigen Endbereichen hin verjüngt. Hierdurch weist die Abdeckung und vorzugsweise auch das Gehäuse sowohl bezüglich des erforderlichen Raumes als auch funktionell, insbesondere unter Berücksichtigung zum einen der im Betrieb entstehenden Wärme in der Leuchte und zum anderen bezüglich der Verkleidung der Leuchte eine günstige Form auf. Außerdem wird die Abdeckung und vorzugsweise das Gehäuse wesentlich stabilisiert. Deshalb ermöglicht es die erfindungsgemäße Ausgestaltung, entweder die Leuchte bzw. die Abdeckung zu stabilisieren oder bei einer hinreichenden Stabilität die Wandung des Gehäuses und/oder der Abdeckung zu verringern, so dass Material und/oder Gewicht eingespart werden können.In the luminaire according to the invention, the cover and preferably also the housing are cambered, such that they have larger cross-sectional dimensions in their central region than in their end regions. In this case, the side walls of the cover bulged This gives the cover and preferably also the housing each extending over a large part of its length cross-sectional size, which differs from a profile shape and tapers from the central longitudinal region to the associated end regions. In this way, the cover and preferably also the housing both in terms of the required space and functionally, in particular taking into account on the one hand the heat generated in operation in the lamp and on the other with respect to the panel of the lamp a favorable shape. In addition, the cover and preferably the housing is substantially stabilized. Therefore, the inventive design makes it possible either to stabilize the lamp or the cover or to reduce the wall of the housing and / or the cover with a sufficient stability, so that material and / or weight can be saved.

Durch die erfindungsgemäße Ausgestaltung ergibt sich eine einfache und kostengünstig herstellbare Form für das Gehäuse und/oder die Abdeckung.The inventive design results in a simple and inexpensive producible form for the housing and / or the cover.

Der erfindungsgemäße, von einer Profilform abweichende Formverlauf lässt sich sowohl dann erreichen, wenn die sich im wesentlichen parallel zur Teilungs- bzw. Öffnungsebene erstreckende Abmessung bzw. Breite des Gehäuses und/oder der Abdeckung sich vom mittleren Bereich zu den Enden hin fortlaufend verringert und/oder die sich im wesentlichen rechtwinklig zur Teilungs- bzw. Öffnungsebene erstreckende Abmessung bzw. Tiefe sich vom mittleren Bereich zu den Enden hin fortlaufend verringert. Eine besonders vorteilhafte Form ergibt sich dann, wenn die sich im wesentlichen parallel zur Teilungs- bzw. Öffnungsebene erstreckende Abmessung sich stärker verringert als die sich im wesentlichen rechtwinklig zur Teilungsebene erstreckende Abmessung.The shape profile deviating from a profile shape according to the invention can be achieved both when the dimension or width of the housing and / or the cover extending substantially parallel to the dividing or opening plane decreases continuously from the middle region to the ends and / / or the dimension or depth extending substantially perpendicular to the split plane progressively decreases from the central region to the ends. A particularly advantageous form results when the dimension extending substantially parallel to the pitch plane decreases more than the dimension substantially perpendicular to the pitch plane.

Es ist bei einer Leuchte der vorliegenden Art ebenfalls bekannt, an der Innenmantelfläche der Abdeckung sich längs erstreckende Lichtleitrippen anzuordnen. Diese an sich bekannte Ausgestaltung eignet sich in Kombination mit der erfindungsgemäßen Ausgestaltung besonders gut, weil sie zu einer weiteren Stabilisierung der Leuchte bzw. des Gehäuses und der Abdeckung führt.It is also known in a luminaire of the present type, to be arranged on the inner lateral surface of the cover longitudinally extending Lichtleitrippen. This per se known configuration is particularly well suited in combination with the embodiment according to the invention, because it leads to a further stabilization of the lamp or of the housing and the cover.

Es ist im weiteren vorteilhaft, die Lichtleitrippen so auszubilden, dass über die Länge der Leuchte bzw. Abdeckung eine im wesentlichen gleiche lichttechnische Wirkung erzielt wird. Dies lässt sich erreichen, wenn die Lichtleitrippen z. B. in längs der Leuchte verlaufenden und winkelversetzten Ebenen verlaufen, welche alle in einer geraden und ebenfalls längs verlaufenden gemeinsamen Schnittlinie liegen.It is further advantageous to form the light guide ribs so that over the length of the lamp or cover, a substantially same photometric effect is achieved. This can be achieved if the light guide ribs z. B. extend along the lamp extending and angularly offset planes, which are all in a straight and also longitudinal common cut line.

Im übrigen können die Lichtleitrippen unterschiedliche Querschnittsformen haben, um z. B. in seitlichen und unterseitigen Umfangsbereichen eine unterschiedliche Licht-Abstrahlung zu erreichen.Moreover, the Lichtleitrippen may have different cross-sectional shapes to z. B. in lateral and lower-side peripheral areas to achieve a different light emission.

Weitere Weiterbildungsmerkmale der Erfindung führen zu vorteilhaften Verschlussvorrichtungen zum Montieren der Abdeckung am Gehäuse und im übrigen auch zu einfachen Ausgestaltungen, die sich vorzüglich für eine Leuchte der eingangs angegebenen Art eignen und außerdem eine einfache und kostengünstig herstellbare Form für das Gehäuse und die Abdeckung ermöglichen.Further development features of the invention lead to advantageous closure devices for mounting the cover on the housing and the rest also to simple configurations that are excellent for a lamp of the type specified and also allow a simple and inexpensive producible form for the housing and the cover.

Nachfolgend werden vorteilhafte Ausgestaltungen der Erfindung und durch sie erzielbare Vorteile anhand von Ausführungsbeispielen näher erläutert. Es zeigt

Fig. 1
eine erfindungsgemäße Leuchte in der Seitenansicht;
Fig. 2
die Leuchte in der Unteransicht;
Fig. 3
eine Abdeckung der Leuchte in perspektivischer Draufsicht;
Fig.4
die linke Hälfte der Leuchte im vertikalen Querschnitt und in vergrößerter Darstellung;
Fig. 5
den mittleren Querschnitt V-V der Abdeckung in Fig. 2;
Fig. 6
den Querschnitt VI-VI der Abdeckung in Fig. 2;
Fig. 7
die Abdeckung im perspektivischem Querschnitt.
Below advantageous embodiments of the invention and achievable by them advantages are explained in more detail with reference to embodiments. It shows
Fig. 1
a lamp according to the invention in side view;
Fig. 2
the lamp in the bottom view;
Fig. 3
a cover of the lamp in a perspective plan view;
Figure 4
the left half of the lamp in vertical cross-section and in an enlarged view;
Fig. 5
the central cross section VV of the cover in Fig. 2 ;
Fig. 6
the cross-section VI-VI of the cover in Fig. 2 ;
Fig. 7
the cover in perspective cross-section.

Die Hauptteile der in Fig. 1 in ihrer Gesamtheit mit 1 bezeichneten Leuchte sind ein wannenförmiges Gehäuse 2, ein damit durch eine Mehrzahl auf dem Umfang verteilt angeordneten Verschlussvorrichtungen 3 lösbar verbundene Abdeckung 4 und eine im Hohlraum 5 zwischen dem wannenförmigen Gehäuse 2 und der Abdeckung 4 angeordnete Lampe 6, die an wenigstens ein mechanisches und elektrisches Anschlusselement angeschlossen und gehalten ist. Die Abdeckung 4 ist domförmig geformt. Ihre Wand 4a erstreckt sich somit im Querschnitt bogenförmig bzw. U-förmig.The main parts of in Fig. 1 in their entirety designated 1 luminaire are a trough-shaped housing 2, a so arranged by a plurality of circumferentially arranged closure devices 3 releasably connected cover 4 and a cavity 5 between the trough-shaped housing 2 and the cover 4 arranged lamp 6, which at least a mechanical and electrical connection element is connected and held. The cover 4 is dome-shaped. Their wall 4a thus extends in cross-section arcuate or U-shaped.

Beim Ausführungsbeispiel handelt es sich um eine Feuchtraumleuchte, die diesbezüglich besondere Schutzanforderungen erfüllt, z. B. gegen das Eindringen von Spritzwasser u. a. im Bereich der Teilungsfuge 7 zwischen dem wannenförmigen Gehäuse 2 und der Abdeckung 4, spritzwassergeschützt ist. Dieser Schutz kann im Bereich der Teilungsfuge 7 durch kammartig ineinandergreifende und sich in die Umfangsrichtung umlaufend erstreckende Stege 8a, 8b, 8c gebildet sein, die ein Labyrinth bilden, das dem Eindringen von Spritzwasser einen Schutz bietet. (Fig. 4).In the embodiment, it is a wet room light, which meets in this regard special protection requirements, eg. B. against the ingress of spray water, inter alia, in the region of the dividing joint 7 between the trough-shaped housing 2 and the cover 4, is splash-proof. This protection can be formed in the region of the dividing joint 7 by comb-like intermeshing webs 8a, 8b, 8c extending circumferentially in the circumferential direction, which form a labyrinth which provides protection against the penetration of sprayed water. ( Fig. 4 ).

Beim Ausführungsbeispiel verzweigt sich die wannenförmige Gehäusewand 2a in deren freien Randbereich zu zwei Wandstegen 8a, 8b, die einen Querabstand voneinander aufweisen, der größer ist als ein zwischen die Wandstege 8a, 8b mit einem Querabstand einfassender Wandsteg 8c, der quer zur Teilungsfuge 7 von der z. B. entgegengesetzt wannenförmig oder domförmig geformten Abdeckungswand 4a absteht.In the exemplary embodiment, the trough-shaped housing wall 2a branches in its free edge region to two wall webs 8a, 8b, which have a transverse distance from one another, which is larger than a wall web 8c bordering the wall webs 8a, 8b with a transverse spacing, which transverse to the parting line 7 of the z. B. opposite trough-shaped or dome-shaped cover wall 4a protrudes.

Die Teilungsfuge 7 ist vorzugsweise zusätzlich zum Labyrinth durch eine Ringdichtung abgedichtet, die einen Dichtring D aufweist, der z. B. im Grund der zwischen den Wandstegen 8a, 8b vorhandenen umlaufenden Nut 2b angeordnet ist, und gegen den der Wandsteg 8c drückt. Der Dichtring D besteht aus weichem elastischem Material, z. B. aus einem Schaumband.The dividing joint 7 is preferably sealed in addition to the labyrinth by a ring seal having a sealing ring D, the z. B. in the reason between the wall webs 8a, 8b existing circumferential groove 2b is arranged, and presses against the wall web 8c. The sealing ring D is made of soft elastic material, for. B. from a foam tape.

Der äußere Wandsteg 8b der Gehäusewand 2a ist Teil einer Verbreiterungsstufe 9 im freien Randbereich der Gehäusewand 2a.The outer wall web 8b of the housing wall 2a is part of a widening step 9 in the free edge region of the housing wall 2a.

Die Gehäusewand 2a weist an ihrer einem Träger, z. B. einer Decke oder Wand eines Raumes, zugewandten Anlageseite 11 Befestigungselemente 12 auf, die der Befestigung am Träger dienen. Beim Ausführungsbeispiel weist die Leuchte 1 eine längliche und sich gerade erstreckende Form auf, deren Länge L1 ein Vielfaches ihrer Breite B beträgt. Entsprechend sind auch das wannenförmige Gehäuse 2 und die Abdeckung 4 geformt. Diese besteht wenigstens in ihrem dem Gehäuse 2 abgewandten Dombereich oder beim Ausführungsbeispiel insgesamt aus einem transparenten Material, z. B. Glas oder Kunststoff, durch das hindurch das Licht der Lampe 6 in der Hauptabstrahlrichtung S aber auch zu den Seiten hin abstrahlt. Das Gehäuse 2 besteht aus Kunststoff, insbesondere aus einem Duroplast.The housing wall 2a has on its a carrier, for. As a ceiling or wall of a room, facing investment side 11 fasteners 12, which serve the attachment to the carrier. In the embodiment, the lamp 1 has an elongated and straight-extending shape whose length L1 is a multiple of its width B. Accordingly, the trough-shaped housing 2 and the cover 4 are formed. This consists at least in their housing 2 remote from the dome area or the embodiment of a total of a transparent material, for. As glass or plastic, through which the light of the lamp 6 in the main emission direction S but also radiates to the sides. The housing 2 is made of plastic, in particular of a thermosetting plastic.

Die Mehrzahl der vorhandenen Verschlussvorrichtungen 3 sind einander gleich bzw. auf beiden Seiten spiegelbildlich zueinander angeordnet und ausgebildet. Deshalb reicht es aus, wenn im Folgenden jeweils nur eine Verschlussvorrichtung 3 beschrieben wird.The majority of the existing closure devices 3 are arranged and formed mirror-inverted relative to one another or on both sides. It is therefore sufficient if only one closure device 3 is described below in each case.

Bei allen Ausführungsbeispielen weist die Verschlussvorrichtung 3 ein Verschlusselement 3a in einer prinzipiell C-förmigen Längs-Querschnittsform auf, dessen Endbereiche mit 3b, 3c bezeichnet sind, das mit seinem oberen Endbereich 3b das wannenförmige Gehäuse 2 hintergreift und gleichzeitig in eine Ausnehmung, insbesondere eine Tasche 13, im Gehäuse 2 eingreift, die zur der Teilungsfuge 7 abgewandten Seite hin offen ist. Die Tasche 13 weist zwei einander gegenüberliegende Taschenwände 13a, 13b auf, die sich etwa parallel zur Längsmittelebene 15 erstrecken und an die Querschnittsgröße des Endbereichs 3b mit Bewegungsspiel oder unter Berücksichtigung einer Klemmwirkung angepasst ist. Die Ausnehmung bzw. Tasche 13 kann sich in der Längsrichtung der Leuchte 1 jeweils nur auf einen Abschnitt oder durchgehend erstrecken.In all embodiments, the closure device 3 has a closure element 3a in a generally C-shaped longitudinal cross-sectional shape, whose end portions are designated 3b, 3c, which engages behind the trough-shaped housing 2 with its upper end portion 3b and at the same time into a recess, in particular a pocket 13, engages in the housing 2, which is open to the dividing joint 7 side facing away. The pocket 13 has two mutually opposite pocket walls 13a, 13b, which extend approximately parallel to the longitudinal center plane 15 and is adapted to the cross-sectional size of the end portion 3b with play or taking into account a clamping action. The recess or pocket 13 may extend in the longitudinal direction of the lamp 1 in each case only to a portion or continuously.

Das Verschlusselement 3a erstreckt sich vom Endbereich 3b im wesentlichen in einer an die zugehörige Außenform des Gehäuses 2 angepassten Form außen am Leuchtengehäuse zur Abdeckung 4 hin, wobei es sich über die Teilungsfuge 7 hinaus erstreckt und mit dem zugehörigen Endbereich 3c eine Verbreiterungsstufe 10 an der Abdeckung 4 hintergreift, gegebenenfalls in eine daran ausgebildete Ausnehmung 10a einrastet. Letzteres erfolgt mit einem sich winkelförmig oder gekrümmt nach innen erstreckenden, den Endbereich 3c bildenden Hintergreifschenkel 3d, der durch eine Sicherungsvorrichtung 14 in seiner Hintergreifstellung gesichert ist.The closure element 3a extends from the end portion 3b substantially in a matched to the associated outer shape of the housing 2 form the outside of the lamp housing to the cover 4 out, where it extends beyond the dividing joint 7 and out with the associated end portion 3c a widening step 10 engages behind the cover 4, optionally engages in a recess 10a formed thereon. The latter is carried out with an angled or curved inwardly extending, the end portion 3c forming Hintergreifschenkel 3d, which is secured by a securing device 14 in its engaged position.

Die Sicherungsvorrichtung 14 kann dadurch gebildet sein; dass der Hintergreifschenkel 3d bezüglich der sich quer bzw. rechtwinklig zur Teilungsfuge 7 erstreckenden Längsmittelebene 15 der Leuchte 1 schräg nach innen elastisch gegen die Verbreiterungsschulter 10 vorgespannt ist, so dass diese Spannung ihn nach innen und nicht nach außen zieht. Dies wird dadurch erreicht, dass der Hintergriff des Endbereichs 3c in einem Abstand a von der Längsmittelebene 15 angeordnet ist, der größer ist als der Abstand b des Hintergriffs des Endbereichs 3b von der Längsmittelebene 15. Hierdurch ergibt sich aufgrund der im elastisch aufgebogenen Zustand mit einer elastischen Spannung an der Verbreiterungsstufe 10 anliegende Hintergreifschenkel 3d eine Spannkraft 16, deren Wirkrichtung einen spitzen Winkel W1 mit der Längsmittelebene 15 einschließt. Diese Spannkraft kann durch eine elastische Aufbiegung des Endbereichs 3b und/oder des Endbereichs 3c und/oder der der Verbreiterungsstufe 9 bezüglich der Stufenform folgenden und ausgebogenen Form des Verschlusselements 3a beruhen.The securing device 14 can be formed thereby; that the Hintergreifschenkel 3d is biased obliquely inwardly against the widening shoulder 10 with respect to the transversely or perpendicular to the dividing joint 7 extending longitudinal median plane 15 of the lamp 1, so that this tension pulls him inward and not outward. This is achieved in that the rear grip of the end portion 3c is arranged at a distance a from the longitudinal center plane 15, which is greater than the distance b of the rear grip of the end portion 3b of the longitudinal center plane 15. This results from the elastically bent state with a elastic clamping voltage applied to the widening step 10 Hintergreifschenkel 3d a clamping force 16, the effective direction includes an acute angle W1 with the longitudinal center plane 15. This clamping force can be based on an elastic bending of the end region 3b and / or of the end region 3c and / or the shape of the closure element 3a that follows the widening step 9 with respect to the step shape.

Das Verschlusselement 3a ist durch einen sich über seine gesamte Länge flach erstreckenden Steg 3e gebildet, dessen Dicke mit d bezeichnet ist.The closure element 3a is formed by a web 3e extending flat over its entire length, the thickness of which is denoted by d.

Der hakenförmig zum freien Endbereich 3c hin abstehende Endbereich 3b des Verschlusselements 3a ist durch eine Arretiervorrichtung 17 in der Tasche 13 gegen ein ungewolltes Herausziehen und somit Lösen arretiert. Eine solche Arretierung kann auf unterschiedlichen Wirksamkeiten beruhen, z.B. auf Klemmwirkung.The hook-shaped to the free end portion 3c projecting end portion 3b of the closure element 3a is locked by a locking device 17 in the pocket 13 against accidental withdrawal and thus loosening. Such locking may be based on different efficiencies, e.g. on clamping action.

Die Abdeckung 4 und vorzugsweise auch das Gehäuse 2 weisen jeweils eine bei einer Blickrichtung quer zur Längsrichtung sichtbare bombierte Querschnittsform auf. Hierbei kann es sich um eine zigarrenförmige Form handeln. Bei einer solchen Form verringert sich die Querschnittsgröße der Leuchte 1 bzw. die Querschnittsgröße des Gehäuses 2 und/oder der Abdeckung 4 jeweils von der Längsmitte oder einer Stelle in einem mittleren Längsbereich zu dem jeweils zugehörigen freien Endbereich hin fortlaufend. Dabei kann sich die im wesentlichen parallel zur Ebene der Öffnung 4b des Gehäuses 2 und/oder der Abdeckung 4 erstreckende Breite B vom mittleren Bereich zu den freien Endbereichen hin fortlaufend verringern, wie es insbesondere aus Fig. 2, 3, 6 und 7 zu entnehmen ist.The cover 4, and preferably also the housing 2, each have a convex cross-sectional shape which is visible in a viewing direction transverse to the longitudinal direction. This may be a cigar-shaped form. In such a shape, the cross-sectional size of the lamp 1 or the cross-sectional size of the housing 2 and / or the cover 4 decreases continuously from the longitudinal center or a point in a central longitudinal region to the respectively associated free end region. In this case, the substantially parallel to the plane of the opening 4b of the housing 2 and / or the cover 4 extending Width B continuously decrease from the central area to the free end areas, as is the case in particular Fig. 2, 3rd . 6 and 7 can be seen.

Zusätzlich kann sich die rechtwinklig zur Ebene der Öffnung 4b des Gehäuses 2 und/oder der Abdeckung 4 erstreckende Tiefe T vom mittleren Bereich zu dem jeweils zugehörigen freien Endbereich der Abdeckung 4 hin fortlaufend verringern. Diese Tiefe T kann im Rahmen der Erfindung jedoch auch wenigstens im mittleren Längsbereich L2 der Abdeckung 4 bzw. des Gehäuses 2 gleich groß sein, was in Fig. 1 dargestellt ist. Bei einer solchen Ausgestaltung erstreckt sich die längs verlaufende Scheitellinie 4c der Abdeckung 4 wenigstens im Längsbereich L2 im wesentlichen gerade. Aber auch im Bereich der Scheitellinie 4c kann sich die Querschnittsgröße bzw. Tiefe des Gehäuses und/oder der Abdeckung von der Längsmitte oder einer Stelle in einem mittleren Endbereich zu dem jeweils zugehörigen Endbereich hin verringern.In addition, the depth T extending at right angles to the plane of the opening 4b of the housing 2 and / or the cover 4 may be continuously reduced from the central area to the respectively associated free end area of the cover 4. However, in the context of the invention, this depth T can also be the same size at least in the central longitudinal region L2 of the cover 4 or of the housing 2, which is shown in FIG Fig. 1 is shown. In such an embodiment, the longitudinal crest line 4c of the cover 4 extends substantially straight at least in the longitudinal region L2. However, even in the region of the apex line 4c, the cross-sectional size or depth of the housing and / or the cover can be reduced from the longitudinal center or a point in a central end region to the respectively associated end region.

Es sind somit die Seitenwände 2a, 4a des Gehäuses 2 und/oder der Abdeckung 4 im wesentlichen über die gesamte Länge L1 oder außerhalb eines mittleren Längsbereichs der Leuchte 1 seitlich ausgebaucht, so dass sich die Breite B ausgehend von der Längsmitte oder ausgehend von einer Stelle im mittleren Längsbereich L2 zu dem jeweils zugehörigen Endbereich des Gehäuses 2 und/oder Abdeckung 4 hin fortlaufend verringert.Thus, the side walls 2a, 4a of the housing 2 and / or the cover 4 are bulged laterally over substantially the entire length L1 or outside a central longitudinal region of the luminaire 1, so that the width B starts from the longitudinal center or from one point in the central longitudinal region L2 to the respective associated end portion of the housing 2 and / or cover 4 continuously reduced towards.

Die Wand 4a kann sich im Bereich der Scheitellinie 4c jedoch auch insgesamt oder wenigstens im Längsbereich L2 gerade und im wesentlichen parallel zur Anlageseite 11 erstrecken, so dass die Tiefe T der Leuchte 1 bzw. der Abdeckung 4 wenigstens im mittleren Längsbereich L2 im wesentlichen über die gesamte Länge L1 gleich ist, abgesehen von den Rundungen an den Enden der Leuchte 1 bzw. der Abdeckung 4.However, in the region of the apex line 4c, the wall 4a may also extend as a whole or at least in the longitudinal region L2 straight and substantially parallel to the contact side 11, so that the depth T of the luminaire 1 or the cover 4 substantially over at least the central longitudinal region L2 Whole length L1 is equal, apart from the curves at the ends of the lamp 1 and the cover. 4

Bei der erfindungsgemäßen Leuchte 1 ist somit die Anlageseite 11 so ausgebildet, dass sie insgesamt eben ist oder dass wenigstens die Mehrzahl der vorhandenen Anlagestellen in einer Ebene liegen.In the luminaire 1 according to the invention thus the contact side 11 is formed so that it is flat overall or that at least the majority of the existing contact points lie in a plane.

Die Konvergenz der Breite B des Gehäuses 2 und/oder der Abdeckung 4 und die Konvergenz der Tiefe T der Abdeckung 4 können gleich oder unterschiedlich sein. Beim Ausführungsbeispiel ist die Konvergenz der Breite B größer als die Konvergenz der Tiefe T. D. h., die Breite B verringert sich zum freien Ende hin mehr als die Tiefe T. Dies lässt sich insbesondere in den Fig. 1 und 6 erkennen, wobei letztere den Schnitt VI-VI in Fig. 2 zeigt. Insbesondere in Fig. 6, die den sich zwischen den Längsbereichen L2 und L3 befindlichen Querschnitt zeigt, zeigt die Breitenkonvergenz aufgrund des Unterschieds zwischen der mittleren Breite B und der im Schnitt verringerten Breite B1.The convergence of the width B of the housing 2 and / or the cover 4 and the convergence of the depth T of the cover 4 may be the same or different. In the embodiment, the convergence of the width B is greater than the convergence of the depth TD h., The width B decreases towards the free end more than the depth T. This can be particularly in the Fig. 1 and 6 the latter, the section VI-VI in Fig. 2 shows. In particular in Fig. 6 , which shows the cross section located between the longitudinal regions L2 and L3, shows the width convergence due to the difference between the middle width B and the width B1 narrowed in section.

Aus Fig. 1 und 6 ist auch erkennbar, dass die bereits erwähnte Konvergenz der Breite B bzw. B1 größer ist, als die Konvergenz der Tiefe T. Dies lässt sich daran erkennen, dass die Scheitellängslinie 4c im Schnitt VI-VI und in der Längsmitte (Schnitt V-V) sich gerade erstreckt (Fig. 1) bzw. gemäß Fig. 6 in einem Punkt hintereinanderliegt.Out Fig. 1 and 6 It can also be seen that the already mentioned convergence of the width B or B1 is greater than the convergence of the depth T. This can be seen from the fact that the apex longitudinal line 4c in the section VI-VI and in the longitudinal center (section VV) is straight extends ( Fig. 1 ) or according to Fig. 6 one behind the other in one point.

Die Abdeckung 4 bildet ein Lichtleitelement, dass das von der Lampe 6 und einem darüber befindlichen und am Gehäuse 2 gehaltenen Reflektor R abgestrahlte bzw. reflektierte Licht in die Umgebung der Abdeckung 4, d.h. in den zu beleuchtenden Raum, hinein leitet. Bei der erfindungsgemäßen Ausgestaltung ist angestrebt, die Abdeckung 4 so auszubilden, dass beim Vorhandensein der seitlichen Ausbauchungen 21 und der Ausbauchung 22 an der Scheitellinie 4c die lichttechnische Wirkung im wesentlichen über die gesamte Länge L1 bzw. L3 im wesentlichen gleich ist. Es ist nämlich wünschenswert, dass an jedem Punkt über die Länge der Ausbauchungen 21, 22 die im wesentlichen gleiche lichttechnische Wirkung erzielt wird.The cover 4 forms a light-guiding element that the light emitted by the lamp 6 and a reflector R located above and held on the housing 2 in the environment of the cover 4, i. into the room to be illuminated, into it. In the embodiment according to the invention, the aim is to design the cover 4 in such a way that, in the presence of the lateral bulges 21 and the bulge 22 on the apex line 4c, the photometric effect is essentially the same over substantially the entire length L1 or L3. It is desirable that at any point over the length of the bulges 21, 22, the substantially same lighting effect is achieved.

Um in der Querrichtung eine unterschiedliche Lichtverteilung zu erhalten oder um seitliche und unterseitige Bereiche der Abdeckung 4 unterschiedlich zu beleuchten, ist es bekannt, die Wand 4a der Abdeckung 4 mit längs verlaufenden Lichtleitrippen bzw. Lichtlenkrippen 23 auszubilden, die das Licht zu wenigstens einer zu beleuchtenden Zone hin lenken.In order to obtain a different light distribution in the transverse direction or to illuminate lateral and lower-side areas of the cover 4 differently, it is known to form the wall 4a of the cover 4 with longitudinally extending light guide ribs or light guide ribs 23 which illuminate the light to at least one Steer the zone.

Beim Ausführungsbeispiel sind eine mittlere, im Firstbereich der Abdeckung 4 angeordnete Beleuchtungszone W1 und zwei auf beiden Seiten daran anschließende Beleuchtungszonen W2 vorhanden, die sich etwa bis zum Rand der Wand 4a der Abdeckung 4 erstrecken und jeweils durch einen Winkelbereich begrenzt sind.In the exemplary embodiment, a central illumination zone W1 arranged in the ridge region of the cover 4 and two illumination zones W2 adjoining on both sides are present which extend approximately to the edge of the wall 4a of the cover 4 and are each bounded by an angular range.

Beim Ausführungsbeispiel sind außerdem direkt nebeneinander angeordnete, im Querschnitt dreieckförmige Rippen 23 vorgesehen, deren Lampe 6 bzw. der Ebene der Öffnung 4b zugewandte Licht-Einkoppelflächen 23a, 23b ebene Flächen sind. Die Winkel der Einkoppelflächen 23a, 23b sind auf beiden Seiten der vertikalen Längsmittelebene der Leuchte 1 bzw. Abdeckung 4 spiegelsymmetrisch ausgebildet und so angeordnet, dass in den Beleuchtungszonen W1, W2 die gewünschte Lichtlenkung und Lichtabstrahlung in den zu beleuchtenden Raum hinein erreicht wird. Die Reihe der Lichtlenkrippen 23 erstreckt sich etwa bis zum freien Rand der Wand 4a, der in einer Ebene E liegt, die im montierten Zustand etwa in der Ebene der Öffnung 4b des Gehäuses 2 angeordnet ist.In the exemplary embodiment, ribs 23 which are arranged directly next to one another and are triangular in cross-section are also provided, whose lamp 6 or light-coupling surfaces 23a, 23b facing the plane of the opening 4b are flat surfaces. The angles of the coupling surfaces 23a, 23b are formed on both sides of the vertical longitudinal center plane of the lamp 1 or cover 4 mirror-symmetrically and arranged so that in the Illumination zones W1, W2 the desired light control and light emission is achieved in the room to be illuminated inside. The row of the light guide ribs 23 extends approximately to the free edge of the wall 4a, which lies in a plane E, which is arranged in the mounted state approximately in the plane of the opening 4b of the housing 2.

Dagegen sind die Rippen 23 in der Längsrichtung der Leuchte 1 bzw. der Abdeckung 4 so ausgebildet, dass eine gleiche lichttechnische Wirkung über die Länge der Wand 4a oder auch im Bereich der Stirnwände 4d erzielt wird.In contrast, the ribs 23 in the longitudinal direction of the lamp 1 and the cover 4 are formed so that an equal lighting effect over the length of the wall 4a or in the region of the end walls 4d is achieved.

Die Breite e und vorzugsweise auch die Höhe h der vorzugsweise direkt nebeneinander angeordneten Rippen 23 verjüngt sich zu den einander gegenüberliegenden Enden der Abdeckung 4 hin vorzugsweise im Verhältnis der jeweils vorhandenen Konvergenz der jeweiligen Querschnittsabmessung der domförmigen Abdeckung 4. Dabei befinden sich die Rippen 23 in zueinander winkelversetzten Ebenen E1, die sich alle in einer Längslinie 24 schneiden, die sich im Bereich zwischen der Mittelachse der Lampe 6 bzw. der zugehörigen elektrischen und mechanischen Anschlussmittel und der Randebene E befindet, vorzugsweise in der Randebene E angeordnet ist.The width e and preferably also the height h of the preferably directly juxtaposed ribs 23 tapers towards the opposite ends of the cover 4, preferably in the ratio of the respective existing convergence of the respective cross-sectional dimension of the dome-shaped cover 4. The ribs 23 are located in relation to one another angularly offset planes E1, which all intersect in a longitudinal line 24, which is located in the region between the central axis of the lamp 6 and the associated electrical and mechanical connection means and the edge plane E, preferably in the edge plane E.

Die Rippen 23 können bis in die Stirnwände 4d der Abdeckung 4 auslaufen, wie es die Fig. 3 und 7 zeigen, oder die Rippen 23 können jeweils im Übergangsbereich zu den Stirnwänden 4b enden, wie es der Schnitt in Fig. 6 zeigt. In Fig. 7 sind die Längskanten der Rippen 23 aus Vereinfachungsgründen in der linken Bildhälfte nicht dargestellt.The ribs 23 may leak into the end walls 4 d of the cover 4, as it Fig. 3 and 7 show, or the ribs 23 may each end in the transition region to the end walls 4b, as the section in Fig. 6 shows. In Fig. 7 the longitudinal edges of the ribs 23 are not shown in the left half of the picture for reasons of simplicity.

Die Stellungen der Verschlussvorrichtungen 3 bzw. der Stege 3e der Verschlusselemente 3a sind so an die Ausbauchung 21 bzw. ausgebauchte Außenseite angepasst, so dass ihre in Fig. 2 sichtbare Mittelachsen jeweils einen spitzen Winkel W3 zwischen sich einschließen.The positions of the closure devices 3 and the webs 3e of the closure elements 3a are adapted to the bulge 21 and bulged outside, so that their in Fig. 2 visible center axes each include an acute angle W3 between them.

Claims (9)

  1. A luminaire (1), in particular a moisture-proof luminaire, having
    - an elongate trough-shaped housing (2),
    - connections arranged therein for at least one lamp (6),
    - a transparent cover (4) covering the opening of the housing (2),
    - and longitudinally extending light-guiding ribs (23) in the cover (4),
    wherein at least one cross-sectional dimension of the cover (4) continuously decreases from the longitudinal middle thereof or from a point lying next to the longitudinal middle to the two end regions or to the closer lying end region of the cover (4),
    characterised in that
    the light-guiding ribs (23) lie in planes (E1) that run along the cover (4), are offset in angle and meet in a common, longitudinally running, straight longitudinal line (24),
    the longitudinal line (24) runs approximately in the dividing plane (E) between the housing (2) and the cover (4).
  2. A luminaire (1), in particular a moisture-proof luminaire, having
    - an elongate trough-shaped housing (2),
    - connections arranged therein for at least one lamp (6),
    - a transparent cover (4) covering the opening of the housing (2),
    - and longitudinally extending light-guiding ribs (23) in the cover (4),
    wherein at least one cross-sectional dimension of the cover (4) continuously decreases from the longitudinal middle thereof or from a point lying next to the longitudinal middle to the two end regions or to the closer lying end region of the cover (4),
    characterised in that
    the light-guiding ribs (23) lie in planes (E1) that run along the cover (4), are offset in angle and meet in a common, longitudinally running, straight longitudinal line (24),
    the width (e) of the light-guiding ribs (23) extending in the circumferential direction of the cover (4) or also the height (h) thereof decreases towards the ends of the cover (4) corresponding to the cross-sectional reduction of the cover (4) in the associated plane (E1).
  3. A luminaire according to claim 1 or 2,
    characterised in that
    the width (B) of the cover (4) continuously decreases from the longitudinal middle thereof or from a point lying next to the longitudinal middle to the two end regions or to the closer lying end region of the cover (4).
  4. A luminaire according to one of the preceding claims,
    characterised in that
    the depth (T) of the cover (4) continuously decreases from the longitudinal middle thereof or from a point lying next to the longitudinal middle to the two end regions or to the closer lying end region of the cover (4).
  5. A luminaire according to one of the previous claims,
    characterised in that
    a cross-sectional dimension (B) running parallel to the opening plane (E) of the cover (4) decreases to a greater extent than a cross-sectional dimension (T) running transversely to the opening plane (E).
  6. A luminaire according to one of the previous claims,
    characterised in that
    the dome-shaped wall (4a) of the cover (4) in the end regions thereof transitions in a rounded manner into transversely extending end walls (4d).
  7. A luminaire according to one of the previous claims,
    characterised in that
    the housing (2) has at least in the region of its opening (4b) a width (B) which continuously decreases from the longitudinal middle or from a point lying next to the longitudinal middle to the two end regions or to the closer lying end region of the housing (2), and preferably decreases in a manner corresponding to the width (B) of the cover (4).
  8. A luminaire according to claim 6 or 7,
    characterised in that
    the light-guiding ribs (23) end in the end regions of the dome-shaped wall (4a) of the cover (4) or extend as far as into the end walls (4d).
  9. A luminaire according to one of the previous claims,
    characterised in that
    the light-guiding ribs (23) have in each case a triangular cross-sectional form.
EP07700183A 2006-02-01 2007-01-04 Elongate luminaire with end regions which are tapered in cross section Active EP1979670B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006004580A DE102006004580A1 (en) 2006-02-01 2006-02-01 Lighting e.g. damp proof lighting, has cover whose width reduces continuously from its longitudinal center or from its adjacent place
PCT/EP2007/000041 WO2007087947A1 (en) 2006-02-01 2007-01-04 Elongate luminaire with end regions which are tapered in cross section

Publications (2)

Publication Number Publication Date
EP1979670A1 EP1979670A1 (en) 2008-10-15
EP1979670B1 true EP1979670B1 (en) 2012-06-27

Family

ID=37775560

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07700183A Active EP1979670B1 (en) 2006-02-01 2007-01-04 Elongate luminaire with end regions which are tapered in cross section

Country Status (5)

Country Link
EP (1) EP1979670B1 (en)
KR (1) KR101398803B1 (en)
CN (1) CN101371072B (en)
DE (1) DE102006004580A1 (en)
WO (1) WO2007087947A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150062925A1 (en) * 2013-08-27 2015-03-05 GE Lighting Solutions, LLC Multi-part reflector for outdoor light design

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB672705A (en) * 1949-05-20 1952-05-28 Holophane Ltd Improvements in the manufacture of bowl-type refractors
WO1980002735A1 (en) * 1979-06-08 1980-12-11 P Ngai Luminaire for indirect lighting
CH664817A5 (en) * 1984-10-17 1988-03-31 Peter A Balla LIGHTING FOR CLOSED RURAL SPACES.
ES293638Y (en) * 1986-04-16 1987-04-16 Scad.Espanola Contucciones Electricas, S.A. ARRANGEMENT FOR AUTOMATIC CLEANING OF LIGHTING SCREENS.
CN2081933U (en) * 1991-01-29 1991-07-31 李东群 Lamp with energy-saving lampshade
IT242325Y1 (en) * 1996-01-22 2001-06-14 3F Filippi Srl CEILING LAMP WITH PERFECTED DEVICE FOR FIXING THE SCREEN TO THE BASE.
CN2515524Y (en) * 2001-05-22 2002-10-09 株式会社严氏贸易 Central bright and clean closed type illuminating lamp
CN2583501Y (en) * 2002-10-15 2003-10-29 陈武德 Improved structure of lampshade

Also Published As

Publication number Publication date
EP1979670A1 (en) 2008-10-15
CN101371072B (en) 2010-11-03
CN101371072A (en) 2009-02-18
WO2007087947A1 (en) 2007-08-09
DE102006004580A1 (en) 2007-08-02
KR101398803B1 (en) 2014-07-03
KR20080099242A (en) 2008-11-12

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