EP1256758B1 - Lamp housing - Google Patents

Lamp housing Download PDF

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Publication number
EP1256758B1
EP1256758B1 EP02008665A EP02008665A EP1256758B1 EP 1256758 B1 EP1256758 B1 EP 1256758B1 EP 02008665 A EP02008665 A EP 02008665A EP 02008665 A EP02008665 A EP 02008665A EP 1256758 B1 EP1256758 B1 EP 1256758B1
Authority
EP
European Patent Office
Prior art keywords
deformation field
sheet metal
interconnecting webs
luminaire housing
housing according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP02008665A
Other languages
German (de)
French (fr)
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EP1256758A3 (en
EP1256758A2 (en
Inventor
Georg Kempter
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZUMTOBEL LIGHTING GmbH
Original Assignee
Zumtobel Lighting GmbH Austria
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Publication date
Application filed by Zumtobel Lighting GmbH Austria filed Critical Zumtobel Lighting GmbH Austria
Publication of EP1256758A2 publication Critical patent/EP1256758A2/en
Publication of EP1256758A3 publication Critical patent/EP1256758A3/en
Application granted granted Critical
Publication of EP1256758B1 publication Critical patent/EP1256758B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • F21V15/00—Protecting lighting devices from damage
    • F21V15/01—Housings, e.g. material or assembling of housing parts

Definitions

  • One of the two molding regions 14 is shown enlarged in FIG. 3. It consists of a circular central deformation field 15, and of a plurality of the deformation field 15 with the surrounding area of the bottom side 3 connecting connecting webs 16, and 17, between which Freifelder 18 and 19 are arranged.
  • the introduction of the free fields 18, 19 for forming the connecting web 16, 17 already takes place during the punching out of the sheet metal part 12.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Casings For Electric Apparatus (AREA)
  • Securing Globes, Refractors, Reflectors Or The Like (AREA)
  • Arrangements Of Lighting Devices For Vehicle Interiors, Mounting And Supporting Thereof, Circuits Therefore (AREA)
  • Fastening Of Light Sources Or Lamp Holders (AREA)

Abstract

The device is especially made of sheet metal (3) with at least one deformation region (14) with a deformation field and connecting bridges with free fields between them. The deformation field is at least partly connected to the surrounding metal plate by the bridges, which are shaped and/or arranged to stretch or change position when pressure is applied to the deformation field, which thus remains protruding from the surrounding metal sheet.

Description

Die vorliegende Erfindung betrifft ein Leuchtengehäuse, in das eine oder mehrere Vertiefungen eingebracht werden sollen.The present invention relates to a luminaire housing in which one or more depressions are to be introduced.

Das Verformen von Blech spielt in zahlreichen technischen Gebieten eine bedeutende Rolle. So werden Bauteile aus Blech üblicherweise dadurch hergestellt, daß zunächst ein ebenes Blechteil ausgestanzt und anschließend in die gewünschte Form gebracht wird. Dabei werden die Blechteile nicht nur um bestimmte Achsen gefaltet bzw. gebogen, sondern oftmals auch derart verformt, daß Vertiefungen oder Eindellungen gebildet werden.Sheet metal deformation plays an important role in many technical fields. Thus, components made of sheet metal are usually prepared by first punching a flat sheet metal part and then brought into the desired shape. The sheet metal parts are not only folded or bent about certain axes, but often also deformed such that depressions or dents are formed.

Ein Anwendungsbeispiel hierfür ist in Fig. 1 dargestellt, die eine Deckeneinbauleuchte 1 im Schnitt zeigt. Das Leuchtengehäuse 2 wird durch eine kastenförmige Blechwanne gebildet, welche an einer (nicht dargestellten) Raumdecke zu befestigen ist. Zur Befestigung der einzelnen Leuchtenelemente innerhalb der Blechwanne 2 werden Befestigungsmittel in Form von Riegelelementen 11 verwendet. An der Unterseite dieser Riegelelemente 11 werden beispielsweise ein Reflektor 5 sowie ein davor angeordneter Diffusor 6 befestigt, an denen wiederum ein Raster 7 sowie die Lampe 8 angeordnet werden. Die Befestigung des Reflektors 5 und des Diffusors 6 in dem Leuchtengehäuse 2 erfolgt dadurch, daß das Riegelelement 11 durch ein Loch in der Bodenseite des Leuchtengehäuses 2 hindurchgeführt und anschließend verdreht und damit arretiert wird.An example of this is shown in Fig. 1, which shows a recessed ceiling light 1 in section. The luminaire housing 2 is formed by a box-shaped sheet metal trough, which is to be fastened to a (not shown) ceiling. For attachment of the individual lamp elements within the sheet-metal tub 2 fastening means in the form of locking elements 11 are used. On the underside of these locking elements 11, for example, a reflector 5 and arranged in front of a diffuser 6 are attached to which in turn a grid 7 and the lamp 8 are arranged. The attachment of the reflector 5 and the diffuser 6 in the lamp housing 2 is effected in that the locking element 11 is passed through a hole in the bottom side of the lamp housing 2 and then rotated and locked it.

Wäre die Bodenseite 3 des Leuchtengehäuses 2, in der sich die Löcher für die Riegelelemente 11 befinden, vollkommen eben, hätte diese zur Folge hat, daß die Oberseiten der Riegelelemente 11 über die Bodenseite 3 vorstehen würden. In diesem Fall könnte das Leuchtengehäuse 2 mit den darin bereits montierten Leuchtenelementen nur schlecht verpackt und gestapelt werden. Aus diesem Grund werden in die Bodenseite 3 des Leuchtengehäuses 2 nach innen ragende Vertiefung 4 eingebracht, deren Bodenseiten die Löcher für die Riegelelemente 11 enthalten, so daß diese nicht mehr hervorstehen.If the bottom side 3 of the lamp housing 2, in which the holes for the locking elements 11 are located, completely flat, this would have the consequence that the tops of the locking elements 11 would protrude beyond the bottom side 3. In this case, the luminaire housing 2 with the luminaire elements already mounted therein could only be poorly packed and stacked. For this reason, 2 inwardly projecting recess 4 are introduced into the bottom side 3 of the lamp housing, the bottom sides of which contain the holes for the locking elements 11, so that they no longer protrude.

Das Einbringen solcher Vertiefungen in ein ebenes Blech erfordert besondere Stanzprägewerkzeuge, welche in der Anschaffung äußerst teuer sind. Der Grund hierfür liegt darin, daß beachtliche Kräfte aufgebracht werden müssen, um eine Vertiefung genügender Höhe in ein ebenes Blech einzuformen, ohne dabei die umgebenden Bereiche des Blechs zu beeinflussen oder sogar zu zerstören. Neben den hohen Kosten besteht eine weitere Schwierigkeit darin, daß bei einem bestimmten Stanzprägewerkzeug die Tiefe und Form der Vertiefung vorgegeben ist, d.h., mit einem bestimmten Werkzeug kann auch nur eine bestimmte Vertiefung hergestellt werden.The introduction of such wells in a flat sheet requires special stamping tools, which are extremely expensive to purchase. The reason for this is that considerable forces must be applied to mold a depression of sufficient height into a flat sheet without affecting or even destroying the surrounding areas of the sheet. Besides the high costs There is a further difficulty in that the depth and shape of the recess is predetermined in a particular stamping die, that is, with a particular tool, only a certain depression can be made.

Aus der EP 0 133 299 A1 ist ein Leuchtengehäuse aus Blech bekannt, bei dem ein erstes Gehäuseteil mit Stirnwänden durch einrastende Steckverbindungen an einem zweiten, rinnenförmigen Gehäuseteil gehalten ist. Das zweite Gehäuseteil weist hierfür an einem abgewinkelten Randstreifen eine in Draufsicht trapezförmige Zunge auf, die an drei Seiten herausgeschnitten ist. Im Querschnitt ist diese Zunge S-förmig gebogen. Bei der Herstellung der Steckverbindung wird das erste Gehäuseteil mit einer Anschlagkante so gegen die Zunge gedrückt, dass diese ausweicht; in der so eingenommenen Position verbleibt die Zunge, solange die Gehäuseteile zusammengesteckt sind.From the EP 0 133 299 A1 a luminaire housing made of sheet metal is known in which a first housing part is held with end walls by latching connectors on a second, channel-shaped housing part. The second housing part has for this purpose on an angled edge strip on a trapezoidal in plan view tongue, which is cut out on three sides. In cross-section, this tongue is bent in an S-shape. In the production of the connector, the first housing part is pressed with a stop edge against the tongue so that it dodges; in the position thus assumed the tongue remains as long as the housing parts are put together.

Der vorliegenden Erfindung liegt daher die Aufgabe zugrunde, die Verformung an Blechteilen zur Bildung von Vertiefungen einfacher und flexibler zu gestalten.The present invention is therefore based on the object to make the deformation of sheet metal parts to form depressions easier and more flexible.

Diese Aufgabe wird durch ein Leuchtengehäuse gemäß Anspruch 1 gelöst.This object is achieved by a luminaire housing according to claim 1.

Das erfindungsgemäße Leuchtengehäuse weist mindestens einen Ausformungsbereich auf, der aus einem Verformungsfeld und mehreren Verbindungsstegen, zwischen denen sich Freifelder befinden, besteht, wobei das Verformungsfeld zumindest teilweise über die Verbindungsstege mit dem umgebenden Metallblech verbunden ist. Die Verbindungsstege verlaufen dabei derart oder sind so geformt, daß sie sich bei Druck auf das Verformungsfeld strecken oder in ihrer Position verändern, so daß in Folge davon das Verformungsfeld bleibend aus dem umgebenden Metallblech heraustritt.The luminaire housing according to the invention has at least one molding area, which consists of a deformation field and a plurality of connecting webs, between which Freifelder are, wherein the deformation field is at least partially connected via the connecting webs with the surrounding metal sheet. The connecting webs run in such a way or are shaped so that they stretch under pressure on the deformation field or change their position, so that in consequence the deformation field emerges permanently from the surrounding metal sheet.

Bei dem erfindungsgemäßen Leuchtengehäuse wird der Aufwand zum Verformen des Ausformungsbereichs gegenüber dem umgebenden Bereich deutlich reduziert, da lediglich die Verbindungsstege gestreckt und /oder verbogen werden müssen. Die hierfür benötigten Kräfte sind allerdings deutlich niedriger als bei einem Verformen eines vollständig geschlossenen Blechs. Ein weiterer Vorteil besteht darin, daß je nach Form und Anordnung des Ausformungsbereichs verschiedene Formen und Tiefen für die in das Blechteil einzubringende Vertiefung realisiert werden können, ohne daß hierfür jeweils ein eigenes Stanzprägewerkzeug verwendet werden muß.In the luminaire housing according to the invention, the expense for deforming the molding area relative to the surrounding area is significantly reduced, since only the connecting webs have to be stretched and / or bent. However, the forces required for this purpose are significantly lower than when deforming a completely closed sheet metal. Another advantage is that, depending on the shape and arrangement of the molding area different shapes and depths can be realized for the recess to be introduced into the sheet metal part, without the need for a separate punching tool must be used for this purpose.

Weiterbildungen der Erfindung sind Gegenstand der Unteransprüche.Further developments of the invention are the subject of the dependent claims.

So sind die Verbindungsstege vorzugsweise konkav oder konvex gekrümmt. Alternativ dazu können aber beispielsweise auch S-förmige oder andere nicht-gerade Formen verwendet werden. Um ferner eine möglichst gleichmäßige Kraftverteilung zu erzielen, sind die Verbindungsstege vorzugsweise gleichmäßig verteilt und/oder jeweils zwei benachbarte Verbindungsstege symmetrisch zueinander angeordnet.Thus, the connecting webs are preferably concavely or convexly curved. Alternatively, however, for example, also S-shaped or other non-straight shapes be used. In order to further achieve the most uniform possible force distribution, the connecting webs are preferably evenly distributed and / or each two adjacent connecting webs arranged symmetrically to each other.

Im folgenden soll die Erfindung anhand der beiliegenden Zeichnung näher erläutert werden. Es zeigen:

Fig. 1
eine Deckeneinbauleuchte, deren Gehäuse aus Blech besteht und eine gemäß der vorliegenden Erfindung gebildete Vertiefung aufweist;
Fig. 2
ein Blechteil, welches zur Bildung des in Fig. 1 dargestellten Leuchtengehäuses verwendet wird und einen erfindungsgemäßen Ausformungsbereich aufweist;
Fig. 3
einen vergrößerten Ausschnitt des Ausformungsbereichs; und
Fig. 4
eine Variante eines erfindungsgemäßen Ausformungsbereichs.
In the following the invention will be explained in more detail with reference to the accompanying drawings. Show it:
Fig. 1
a recessed ceiling light whose housing is made of sheet metal and has a recess formed according to the present invention;
Fig. 2
a sheet metal part, which is used to form the light housing shown in Figure 1 and having a molding area according to the invention.
Fig. 3
an enlarged section of the molding area; and
Fig. 4
a variant of a molding area according to the invention.

Die in Fig. 1 dargestellte Leuchte 1 mit der in die Bodenseite 3 des Leuchtengehäuses 2 eingebrachten Vertiefung 4 wurde bereits oben erläutert. Im folgenden soll nunmehr das in Fig. 2 dargestellte Blechteil 12, welches zur Bildung des Leuchtengehäuses 2 verwendet wird, näher erläutert werden.The light 1 shown in Fig. 1 with the introduced into the bottom side 3 of the lamp housing 2 recess 4 has already been explained above. In the following, now the sheet metal part 12 shown in Fig. 2, which is used to form the lamp housing 2 will be explained in more detail.

Das in Fig. 2 dargestellte ebene Blechteil 12 wird aus einem einzigen ebenen Blech gestanzt und anschließend in die kastenförmige Struktur zur Bildung eines Leuchtengehäuses verformt. Dabei werden die vier um die Bodenseite 3 herum angeordneten Seitenbereiche 13 nach unten gebogen, so daß sich die in Fig. 1 dargestellte Struktur ergibt. Dieses Verbiegen der Seitenteile 13 ist mit einem verhältnismäßig niedrigem Kraftaufwand möglich. Darüber hinaus werden zwei Ausformungsbereiche 14 gegenüber der Bodenseite 3 verformt, um die beiden nach innen ragenden Vertiefungen 4 zu bilden, die zur Aufnahme der Riegelelemente 11 zur Befestigung der Leuchtenelemente in dem Gehäuse 2 vorgesehen sind.The flat sheet metal part 12 shown in Fig. 2 is punched from a single flat sheet and then deformed into the box-shaped structure to form a lamp housing. In this case, the four arranged around the bottom side 3 side portions 13 are bent down so that the structure shown in Fig. 1 results. This bending of the side parts 13 is possible with a relatively low effort. In addition, two molding portions 14 are deformed with respect to the bottom side 3 to form the two inwardly projecting recesses 4, which are provided for receiving the locking elements 11 for fixing the lamp elements in the housing 2.

Einer der beiden Ausformungsbereiche 14 ist vergrößert in Fig. 3 dargestellt. Es besteht aus einem kreisförmigen mittleren Verformungsfeld 15, sowie aus mehreren das Verformungsfeld 15 mit dem umgebenden Bereich der Bodenseite 3 verbindenden Verbindungsstegen 16, und 17, zwischen denen Freifelder 18 und 19 angeordnet sind. Das Einbringen der Freifelder 18, 19 zum Bilden der Verbindungssteg 16, 17 erfolgt bereits während des Ausstanzens des Blechteils 12.One of the two molding regions 14 is shown enlarged in FIG. 3. It consists of a circular central deformation field 15, and of a plurality of the deformation field 15 with the surrounding area of the bottom side 3 connecting connecting webs 16, and 17, between which Freifelder 18 and 19 are arranged. The introduction of the free fields 18, 19 for forming the connecting web 16, 17 already takes place during the punching out of the sheet metal part 12.

Die Verbindungsstege 16, 17 sind jeweils konkav oder konvex gekrümmt, wobei jeweils zwei benachbarte Verbindungsstege 16, 17 symmetrisch zueinander angeordnet sind. Dies hat den Vorteil, daß bei Druckausübung auf das Verformungsfeld 15 eine gleichmäßige Kraftverteilung auf die Verbindungsstege 16, 17 erzielt wird. In die Mitte des Verformungsfelds 15 ist ferner ein Loch eingestanzt, durch welches das in Fig. 1 dargestellte Verriegelungselement 11 hindurchgeführt werden kann.The connecting webs 16, 17 are each concavely or convexly curved, wherein each two adjacent connecting webs 16, 17 are arranged symmetrically to each other. This has the advantage that when pressure is exerted on the deformation field 15 a uniform force distribution on the connecting webs 16, 17 is achieved. In the middle of the deformation field 15, a hole is further punched, through which the locking element 11 shown in Fig. 1 can be passed.

Die Vertiefung 4 wird dadurch gebildet, daß auf das Verformungsfeld 15 Druck ausgeübt wird, so daß dieses aus der durch die Bodenseite 3 gebildeten Ursprungsebene herausgehoben wird. Hierbei werden die Verbindungsstege 16 und 17 je nach Tiefe der Vertiefung um ihre gekrümmten Bereiche 16a bzw. 17a längs gestreckt. Die hierfür notwendige Kraft ist deutlich niedriger als das Einbringen einer Vertiefung in ein geschlossenes Blech.The depression 4 is formed by applying pressure to the deformation field 15, so that this from the origin plane formed by the bottom side 3 is lifted out. Here, the connecting webs 16 and 17, depending on the depth of the recess are stretched longitudinally about their curved portions 16a and 17a. The force required for this is significantly lower than the introduction of a recess in a closed sheet metal.

An den Endbereichen, an denen die zwei Verbindungsstege 16, 17 wieder zusammenlaufen, sind ferner kleine Einkerbungen 20 vorgesehen, die bewirken, daß bei einer Längsstreckung der Verbindungsstege 16, 17 keine zusätzlichen Verformungen in diesen Endbereichen auftreten. Hierdurch wir zum einen der Kraftaufwand reduziert, zum anderen ist die Gefahr, daß die Verbindungsstege 16, 17 brechen oder reißen, geringer.At the end regions where the two connecting webs 16, 17 converge again, small indentations 20 are also provided, which cause that at a longitudinal extension of the connecting webs 16, 17 no additional deformations occur in these end regions. In this way, on the one hand reduces the effort, on the other hand, the risk that the connecting webs 16, 17 break or tear, lower.

Anstelle der in Fig. 3 dargestellten konkav bzw. konvex gekrümmten Verbindungsstege können auch andere Strukturen verwendet werden. Beispielsweise wäre auch die Verwendung von abgewinkelten oder S-förmigen Verbindungsstegen denkbar. Darüber hinaus ist es nicht notwendig, daß alle Verbindungsstege gleichartig ausgestaltet sind. Soll beispielsweise das Verformungsfeld nicht in eine zur Ursprungsebene parallele sondern in eine geneigte Ebene verformt werden, so können die Verbindungsstege an der Seite der Vertiefung, die eine größere Tiefe aufweisen soll, länger sein. Auch kann der Verformungsbereich anstelle einer Kreisform eine beliebige Form annehmen. Ferner wäre auch denkbar, daß das Verformungsfeld an einer Seite unmittelbar mit dem umgebenden Bereich der Bodenseite verbunden ist, so daß das Verformungsfeld lediglich gegenüber der Bodenseite verbogen wird.Instead of the concave or convexly curved connecting webs shown in FIG. 3, other structures can also be used. For example, the use of angled or S-shaped connecting webs would be conceivable. In addition, it is not necessary that all connecting webs are designed similar. If, for example, the deformation field is not deformed into a plane parallel to the origin plane but rather into an inclined plane, then the connecting webs on the side of the depression, which should have a greater depth, can be longer. Also, the deformation region may take any shape instead of a circular shape. Furthermore, it would also be conceivable that the deformation field is connected on one side directly to the surrounding area of the bottom side, so that the deformation field is bent only relative to the bottom side.

Eine weitere Möglichkeit für einen erfindungsgemäßen Ausformungsbereich 14 ist in Fig. 4 dargestellt. Bei dieser Variante sind die Verbindungsstege 16 gerade und verbinden das Verformungsfeld 15 in nicht-radialer Weise mit dem umgebenden Bereich der Bodenseite 3. Wird in diesem Fall Druck auf des Verformungsfeld 15 ausgeübt, so verändern die Verbindungsstege 16 derart ihre Position, daß das Verformungsfeld 15 aus der Ursprungsebene unter einer leichten Rotationsbewegung heraustritt.Another possibility for a molding region 14 according to the invention is shown in FIG. 4. In this variant, the connecting webs 16 are straight and connect the deformation field 15 in a non-radial manner with the surrounding area of the bottom side 3. If pressure is exerted on the deformation field 15 in this case, so the connecting webs 16 change their position such that the deformation field 15th emerges from the origin plane under a slight rotational movement.

Bei dem erfindungsgemäßen Leuchtengehäuse wird somit der Aufwand zum Verformen des Blechs zum Bilden von Vertiefungen derart reduziert, daß die in ihrer Anschaffung sehr teuren Stanzprägewerkzeuge nicht mehr notwendig sind. Darüber hinaus können die Vertiefungen in ihrer Form und Struktur flexibel gestaltet werden.In the case of the luminaire housing according to the invention, the outlay for deforming the sheet for forming recesses is thus reduced in such a way that the stamping dies that are very expensive to purchase are no longer necessary. In addition, the depressions can be made flexible in their shape and structure.

Claims (7)

  1. Luminaire housing (2) of sheet metal (3), with at least one shaping region (14) provided therein which has a deformation field (15) and interconnecting webs (16, 17), between which free fields (18, 19) are located, wherein the deformation field (15) is connected at least partially with the surrounding sheet metal (3) via the interconnecting webs (16, 17),
    and wherein the interconnecting webs (16, 17) so develop and/or are so formed that they extend under pressure on the deformation field (15) or change in their position, with the consequence that the deformation field (15) emerges permanently from the surrounding sheet metal (3),
    characterised in that the interconnecting webs (16, 17) connect the deformation field (15) on all sides with the sheet metal (3).
  2. Luminaire housing according to claim 1,
    characterised in
    that the interconnecting webs (16,17) are bent.
  3. Luminaire housing according to claim 2,
    characterised in
    that the interconnecting webs (16,17) are bent concavely or convexly.
  4. Luminaire housing according to claim 2,
    characterised in
    that the interconnecting webs (16,17) are S-shaped.
  5. Luminaire housing according to any preceding claim,
    characterised in that two neighbouring interconnecting webs (16, 17) are arranged respectively symmetrically to each other.
  6. Luminaire housing according to any preceding claim,
    characterised in that the interconnecting webs (16, 17) connect the deformation field (15) with the sheet metal (3) non-radially.
  7. Luminaire housing according to any preceding claim,
    characterised in that the interconnecting webs (16,17) are arranged distributed evenly.
EP02008665A 2001-05-08 2002-04-17 Lamp housing Expired - Lifetime EP1256758B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10122126A DE10122126A1 (en) 2001-05-08 2001-05-08 luminaire housing
DE10122126 2001-05-08

Publications (3)

Publication Number Publication Date
EP1256758A2 EP1256758A2 (en) 2002-11-13
EP1256758A3 EP1256758A3 (en) 2005-10-05
EP1256758B1 true EP1256758B1 (en) 2007-09-12

Family

ID=7683892

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02008665A Expired - Lifetime EP1256758B1 (en) 2001-05-08 2002-04-17 Lamp housing

Country Status (5)

Country Link
EP (1) EP1256758B1 (en)
AT (1) ATE373202T1 (en)
DE (2) DE10122126A1 (en)
NO (1) NO333153B1 (en)
PL (1) PL201214B1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE549575T1 (en) * 2009-03-31 2012-03-15 Flowil Int Lighting CEILING LIGHT HOUSING

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7221957U (en) * 1972-06-12 1973-11-22 Siemens Ag SEALED LAMP
DE3327392A1 (en) * 1983-07-29 1985-02-07 Siemens AG, 1000 Berlin und 8000 München LIGHT HOUSING WITH CLOSED HEADWALLS
GB2239085A (en) * 1989-12-01 1991-06-19 Moorlite Electrical Ltd A lamp housing and method for making it
DE29703377U1 (en) * 1997-02-25 1997-05-15 Dusar Kunststoff- und Metallwaren GmbH, 56584 Anhausen Lighting fixtures

Also Published As

Publication number Publication date
PL353756A1 (en) 2002-11-18
DE50210868D1 (en) 2007-10-25
EP1256758A3 (en) 2005-10-05
PL201214B1 (en) 2009-03-31
ATE373202T1 (en) 2007-09-15
NO333153B1 (en) 2013-03-18
NO20022186D0 (en) 2002-05-07
DE10122126A1 (en) 2002-11-14
NO20022186L (en) 2002-11-11
EP1256758A2 (en) 2002-11-13

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