EP0392223B1 - Device to detachably secure the cover to the housing of an elongated light fixture - Google Patents

Device to detachably secure the cover to the housing of an elongated light fixture Download PDF

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Publication number
EP0392223B1
EP0392223B1 EP90105311A EP90105311A EP0392223B1 EP 0392223 B1 EP0392223 B1 EP 0392223B1 EP 90105311 A EP90105311 A EP 90105311A EP 90105311 A EP90105311 A EP 90105311A EP 0392223 B1 EP0392223 B1 EP 0392223B1
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EP
European Patent Office
Prior art keywords
slide element
rack
housing
slide
longitudinal
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
EP90105311A
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German (de)
French (fr)
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EP0392223A1 (en
Inventor
Heinz Liedtke
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ABB Ceag Licht und Stromversorgungstechnik GmbH
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ABB Ceag Licht und Stromversorgungstechnik GmbH
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Priority to AT90105311T priority Critical patent/ATE94630T1/en
Publication of EP0392223A1 publication Critical patent/EP0392223A1/en
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    • 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
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
    • F21V17/14—Bayonet-type fastening
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2103/00—Elongate light sources, e.g. fluorescent tubes

Definitions

  • the invention relates to a device according to the preamble of claim 1.
  • a linear luminaire which is to be used in potentially explosive atmospheres, is composed of a housing and a translucent, mostly clear, transparent trough, which are locked together by means of an external locking device that is located inside the housing.
  • the locking device has one or two slides which run inside the housing and which is or are accommodated on a longitudinal side of the housing; on the other long side of the housing or the tub, at least one hinge connecting the housing to the tub is provided.
  • At least one fluorescent lamp is located inside the lamp. If this fluorescent lamp is to be replaced, the locking device is opened and the trough remains connected to the housing by means of the hinge or hinges.
  • the slide elements are arranged on both long sides; in this case, they must be driven at the same time.
  • a drive device a pin is mounted within a side wall of the housing, the rotational movement of which is transmitted to the longitudinal movement of the slide via suitable transmission elements.
  • a locking device for a linear luminaire in which a slide element is slidably guided parallel to one of the longitudinal edges, which engages either with pegs behind hooks formed on the tub or with hooks behind pegs formed on the tub .
  • the slide element has a rack segment which meshes with a gear that can be actuated from the outside.
  • a single slide element is provided, which extends over the entire width of the linear light. This leads to leadership problems and, moreover, the power transmission from the slide element to the projections or hooks on the tub is problematic.
  • a locking device has become known in which a slide element, which has a rack segment, can be displaced in the longitudinal direction by means of a toothed wheel which can be rotated from the outside. It drives two hooks centrally located in the lamp, which grip behind the projections on the tub and lock it in this way.
  • the object of the invention is to provide a device of the type mentioned at the outset, which is as simple as possible and in particular manages with as few different components as possible.
  • the rack element On each slide element, the rack element is arranged at the same point, so that the rack segments only lie opposite one another by simply turning the slide elements with the rack segments so that the gearwheel in between can mesh with both rack segments.
  • Both slide elements on one longitudinal edge are accordingly constructed identically.
  • a special advantage is obtained with such an embodiment of the invention. While if only one slide element is arranged on each longitudinal edge of the housing, the cover trough is loaded in one direction during the closing process or is subjected to a closing force in the closing direction, which can lead to a displacement of the trough relative to the housing, the closing forces act in the inventive training against each other, so that a resulting force acting on the tub is not available. A displacement of the tub is avoided.
  • the rack segment can be integrally formed on the slide element according to claim 4 or mechanically coupled to it according to claim 5.
  • a further embodiment of the invention can be such that, according to claim 6, the rack elements are guided by a guide housing.
  • the structure of the guide housing can be as specified in claim 7.
  • a linear luminaire 10 is composed of a housing 11 and a transparent trough 12, which are connected to one another in a sealed manner with their longitudinal edges with the interposition of a seal 13.
  • the housing 11 has a circumferential, L-shaped cranked edge 14 with a sealing surface 15, whereas the tub 12 has at its edge a circumferential, U-shaped channel 16, the U-shape of which is open to the sealing surface 15 and into which the seal 13 is inserted.
  • power supply devices 18 (which are only partially shown) are fastened via posts 17;
  • a fluorescent lamp 19 and a reflector 20 are located in the area of the tub.
  • slide elements 22, 23 Parallel to the side walls 21 there are slide elements 22, 23 in the interior of the housing, with further slide elements being arranged on the inner surface of the opposite side wall of the housing 11, which cannot be seen here.
  • the slide element 22 is shown in more detail in FIG. 1. It is an elongated rectangular component, on the two longitudinal edges 24 and 25 of which approximately L-shaped recesses 26 and 27 are arranged or introduced, the L-legs 28 and 29 of which are all aligned in one of the longitudinal directions of the slide element 22.
  • a rack segment 30 is attached, which is aligned with the toothless edge 31 with the longitudinal edge 25, whereas the tooth area 32 from the toothless Edge 31 is significantly less than the center line MM.
  • the identically designed slide element 22 can be used for all slide elements 22/23 in the interior of a linear luminaire, so that only a single configuration of a slide element has to be kept in stock and thus the storage is considerably reduced.
  • the slide element can also be shaped as shown in FIG. 2.
  • a molded part 35 is formed on the same narrow edge, which has omega-shaped openings or recesses 36 and 37 which are open towards the narrow side edge.
  • the rack segment 38 is then, as shown in FIG. 3, a separate element which has mushroom-like projections 39 and 40 on its opposite end edges, which can be snapped into the omega-shaped openings 36 and 37.
  • the openings 36 and 37 and the projections 39 and 40 then serve practically as couplings. In the assembled state, a configuration as shown in FIG. 1 is practically achieved.
  • a drive pin 42 In the side wall 21 of the housing 11 there is a bore 41 in which a drive pin 42 is rotatably mounted in a sealed manner.
  • the outer end of the drive pin 42 has a nut profile 43 so that the pin 42 can be rotated by means of a tool.
  • the bore 41 is surrounded by a cylindrical collar 44, which serves as a protective collar.
  • a gear 45 is fastened, to which a drive shaft 46 connects, which is mounted on the opposite side wall in a blind hole (not shown in more detail).
  • the two slide elements 22 and 23 (see FIG. 2), wherein, as mentioned above, the slide element 23 corresponds identically to the slide element 22 and is only installed in a rotated manner, mesh with their rack segments 30 with the gear wheel 45, the rack segment 30 of the slide element 23 at the top and the rack segment 30 of the slide element 22 engage below in the gear 45.
  • the toothed segments have a bar 47 which is narrower than the remaining thickness of the toothed segments and whose free edge is aligned with the longitudinal edge 25.
  • a guide housing 48 is provided, which is penetrated by the drive shaft 46 and has a plate 49; On two opposite side edges, an L-shaped projection 50 and 51 is formed on the plate 49, which formations form a U-shaped groove 52 and 53, which face one another with their open U-shape and accommodate the strips 47 for guidance.
  • the housing 48 accommodates the two rack elements 38 at the top and bottom, and this creates a uniform, prefabricatable toothed drive element with which the two identical slide elements according to FIG. 2 are inserted by inserting the projections 39 and 40 in the openings 36 and 37 are coupled.
  • the tub 12 has in the region of its groove 16 on the inside protruding pins 54 which are arranged so that the L-shaped recesses 26 engage behind them.
  • the number of pins corresponds to the number of L-shaped recesses per two slide elements.
  • An identical housing 48 with the rack elements can of course also be provided on the opposite side wall of the housing 11.
  • the drive shaft extends through the housing parallel to the base part and perpendicular to the longitudinal extension of the linear light 10.
  • each pin 54 is designed as a cylindrical pin with a blind hole 55 into which a projection 56 adapted to it can be snapped, on which a U-shaped tab 57 is formed; one can also say that the projection is formed on the U-shaped tab 57.
  • the other leg is connected to the housing in the area of a post.
  • the tab 55 has two webs having the U-shape, one leg of which is connected by means of a connecting web 59, the projection on the connecting web 59 56 is formed.
  • the other ends of the U-shaped ridges of the U-shaped tab are attached to a support post 60 on the housing.
  • the support post 60 is provided or arranged at a distance from the inner surface of the side wall 21 and has at its upper free end a guide projection 61 directed towards the side wall 21, which engages in the slots 33 and thus serves for the horizontal guidance of the slide elements 22/23 .
  • This post is divided into two; it has a lower post part 60a molded onto the housing base and an upper post part 60b attached to it by means of a screw connection 62, on which the projection 61 is molded.
  • a number of posts 60 corresponding to the number of slots 33 is formed on the housing base with a guide projection 61.

Abstract

A device for detachably securing a transparent cover (12) to the housing (11) of an elongated light fixture has slider elements (22, 23), which can be displaced with respect to one another in the housing (11) and are provided with toothed rack segments (30) which mesh with a toothed wheel (45) that can be operated from outside. By rotating the toothed wheel (45), the slider elements (22, 23) are moved with respect to one another, to be precise from a position in which they retain the cover (12) into a position in which they release the cover. <IMAGE>

Description

Die Erfindung betrifft eine Vorrichtung gemäß dem Oberbegriff des Anspruches 1.The invention relates to a device according to the preamble of claim 1.

Eine Langfeldleuchte, die in explosionsgefährdetem Bereich eingesetzt werden soll, ist aus einem Gehäuse und einer lichtdurchlässigen, meist klar transparenten Wanne zusammengesetzt, die mittels einer im Inneren des Gehäuses befindlichen, von außen betätigbaren Verriegelungsvorrichtung miteinander verriegelt werden. Zu diesem Zweck besitzt die Verriegelungsvorrichtung einen oder zwei im Inneren des Gehäuses verlaufenden Schieber, der bzw. die an einer Längsseite des Gehäuses untergebracht ist bzw. sind; an der anderen Längsseite des Gehäuses bzw. der Wanne ist mindestens ein das Gehäuse mit der Wanne verbindendes Gelenkscharnier vorgesehen. Im Inneren der Leuchte befindet sich wenigstens eine Leuchtstofflampe. Wenn diese Leuchtstofflampe ausgetauscht werden soll, wird die Verriegelungsvorrichtung geöffnet und die Wanne bleibt mit dem Gehäuse mittels des oder der Gelenkscharniere verbunden. Es besteht auch die Möglichkeit, daß die Schieberelemente auf beiden Längsseiten angeordnet sind; in diesem Falle sind diese gleichzeitig anzutreiben. Als Antriebsvorrichtung ist innerhalb einer Gehäuseseitenwand ein Zapfen gelagert, dessen Drehbewegung über geeignete Übertragungselemente auf die Längsbewegung der Schieber übertragen wird.A linear luminaire, which is to be used in potentially explosive atmospheres, is composed of a housing and a translucent, mostly clear, transparent trough, which are locked together by means of an external locking device that is located inside the housing. For this purpose, the locking device has one or two slides which run inside the housing and which is or are accommodated on a longitudinal side of the housing; on the other long side of the housing or the tub, at least one hinge connecting the housing to the tub is provided. At least one fluorescent lamp is located inside the lamp. If this fluorescent lamp is to be replaced, the locking device is opened and the trough remains connected to the housing by means of the hinge or hinges. There is also the possibility that the slide elements are arranged on both long sides; in this case, they must be driven at the same time. As a drive device, a pin is mounted within a side wall of the housing, the rotational movement of which is transmitted to the longitudinal movement of the slide via suitable transmission elements.

Aus der DE-OS 32 30 337 ist eine Verriegelungseinrichtung für eine Langfeldleuchte bekannt geworden, bei der ein Schieberelement parallel zu einer der Längskanten verschiebbar geführt ist, welches entweder mit Zapfen hinter an der Wanne angeformten Haken oder mit Haken hinter an der Wanne angeformten Zapfen eingreift. Das Schieberelement besitzt ein Zahnstangensegment, welches mit einem vom außen betätigbaren Zahnrad kämmt. Bei dieser Anordnung ist ein einziges Schieberelement vorgesehen, welches über die gesamte Breite der Langfeldleuchte verläuft. Hierbei treten Führungsprobleme auf und darüberhinaus ist die Kraftübertragung vom Schieberelement auf die Vorsprünge oder Haken an der Wanne problematisch.From DE-OS 32 30 337 a locking device for a linear luminaire has become known, in which a slide element is slidably guided parallel to one of the longitudinal edges, which engages either with pegs behind hooks formed on the tub or with hooks behind pegs formed on the tub . The slide element has a rack segment which meshes with a gear that can be actuated from the outside. In this arrangement, a single slide element is provided, which extends over the entire width of the linear light. This leads to leadership problems and, moreover, the power transmission from the slide element to the projections or hooks on the tub is problematic.

Aus der CH-PS 335 380 ist eine Verriegelungsvorrichtung bekannt geworden, bei der ein Schieberelement, das ein Zahnstangensegment aufweist, mittels eines von außen verdrehbaren Zahnrades in Längsrichtung verschiebbar ist. Dabei treibt es zwei zentral in der Leuchte gelagerte Haken an, die hinter Vorsprünge an der Wanne greifen und diese so verriegeln.From CH-PS 335 380 a locking device has become known in which a slide element, which has a rack segment, can be displaced in the longitudinal direction by means of a toothed wheel which can be rotated from the outside. It drives two hooks centrally located in the lamp, which grip behind the projections on the tub and lock it in this way.

Aufgabe der Erfindung ist es, eine Vorrichtung der eingangs genannten Art zu schaffen, die so einfach wie möglich ausgebildet ist und insbesondere mit so wenig wie möglich unterschiedlichen Bauelementen auszukommt.The object of the invention is to provide a device of the type mentioned at the outset, which is as simple as possible and in particular manages with as few different components as possible.

Diese Aufgabe wird erfindungsgemäß durch die kennzeichnenden Merkmale des Ansprüches 1 gelöst.This object is achieved by the characterizing features of claim 1.

An jedem Schieberelement ist also an der gleichen Stelle das Zahnstangenelement angeordnet, so daß lediglich durch Umdrehen und geeignete Zuordnung der Schieberelemente mit den Zahnstangensegementen zueinander die Zahnstangensegmente so einander gegenüberliegen, daß das dazwischen befindliche Zahnrad mit beiden Zahnstangensegmenten kämmen kann. Beide Schieberelemente an einer Längskante sind demgemäß identisch aufgebaut.On each slide element, the rack element is arranged at the same point, so that the rack segments only lie opposite one another by simply turning the slide elements with the rack segments so that the gearwheel in between can mesh with both rack segments. Both slide elements on one longitudinal edge are accordingly constructed identically.

Speziell bei einer solchen Ausgestaltung der Erfindung erhält man einen besonderen Vorteil. Während dann, wenn nur ein Schieberelement an je einer Längskante des Gehäuses angeordnet ist, die Abdeckwanne beim Verschließvorgang in einer Richtung belastet wird bzw. in Schließrichtung mit einer Schließkraft beaufschlagt wird, die zu einer Verschiebung der Wanne gegenüber dem Gehäuse führen kann, wirken die Schließkräfte bei der erfindungsgemäßen Ausbildung gegeneinander, so daß ein auf die Wanne wirkende resultierende Kraft nicht vorhanden ist. Eine Verschiebung der Wanne wird dadurch vermieden.A special advantage is obtained with such an embodiment of the invention. While if only one slide element is arranged on each longitudinal edge of the housing, the cover trough is loaded in one direction during the closing process or is subjected to a closing force in the closing direction, which can lead to a displacement of the trough relative to the housing, the closing forces act in the inventive training against each other, so that a resulting force acting on the tub is not available. A displacement of the tub is avoided.

In besonders vorteilhafter Ausgestaltung der Erfindung kann das Zahnstangensegment gemäß Anspruch 4 am Schieberelement angeformt oder gemäß Anspruch 5 mechanisch damit kuppelbar sein.In a particularly advantageous embodiment of the invention, the rack segment can be integrally formed on the slide element according to claim 4 or mechanically coupled to it according to claim 5.

Eine weitere Ausgestaltung der Erfindung kann dahin gehen, daß gemäß Anspruch 6 eine Führung der Zahnstangenelemente durch ein Führungsgehäuse erreicht wird. Der Aufbau des Führungsgehäuses kann dabei so sein, wie in Anspruch 7 angegeben.A further embodiment of the invention can be such that, according to claim 6, the rack elements are guided by a guide housing. The structure of the guide housing can be as specified in claim 7.

Anhand der Zeichnung, in der ein Ausführungsbeispiel der Erfindung dargestellt ist, sollen die Erfindung sowie weitere vorteilhafte Ausgestaltungen und Verbesserungen der Erfindung näher erläutert und beschrieben werden.Based on the drawing, in which an embodiment of the invention is shown, the invention and further advantageous refinements and improvements of the invention are to be explained and described in more detail.

Es zeigen:

Figur 1
eine Aufsicht auf ein erstes Ausführungsbeispiel eines Schieberelementes,
Figur 2
eine Aufsicht auf ein zweites Ausführungsbeispiel eines Schieberelementes,
Figur 3
eine Aufsicht auf ein Zahnstangenelement für das Schieberelement gemäß Figur 2,
Figur 4
eine Seitenansicht einer Antriebsvorrichtung für zwei Schieberelemente,
Figur 5
eine Schnittansicht gemäß Schnittlinie V-V der Figur 4,
Figur 6
eine Schnittansicht einer Langfeldleuchte, entsprechend der Schnittlinie VI-VI der Figur 7 und
Figur 7
eine Ansicht gemäß Pfeilrichtung VII der Figur 6.
Show it:
Figure 1
a top view of a first embodiment of a slide element,
Figure 2
a view of a second embodiment of a slide element,
Figure 3
3 shows a top view of a rack element for the slide element according to FIG. 2,
Figure 4
a side view of a drive device for two slide elements,
Figure 5
3 shows a sectional view according to section line VV of FIG. 4,
Figure 6
a sectional view of a linear lamp, according to the section line VI-VI of Figure 7 and
Figure 7
a view in the direction of arrow VII of Figure 6.

Es sei zunächst Bezug genommen auf die Figur 6.Reference is first made to FIG. 6.

Eine Langfeldleuchte 10 ist zusammengesetzt aus einem Gehäuse 11 und einer transparenten Wanne 12, die mit ihren Längskanten unter Zwischenfügung einer Dichtung 13 abgedichtet miteinander verbunden sind. Zu diesem Zweck besitzt das Gehäuse 11 einen umlaufenden, L-förmig abgekröpften Rand 14 mit einer Dichtfläche 15, wogegen die Wanne 12 an ihrer Kante eine umlaufende, U-förmige Rinne 16 aufweist, deren U-Form zur Dichtfläche 15 offen ist und in die die Dichtung 13 eingesetzt ist. Am Boden des Gehäuses 11 sind über Pfosten 17 Stromversorgungseinrichtungen 18 (die nur teilweise dargestellt sind) befestigt; im Bereich der Wanne befindet sich eine Leuchtstofflampe 19 sowie ein Reflektor 20.A linear luminaire 10 is composed of a housing 11 and a transparent trough 12, which are connected to one another in a sealed manner with their longitudinal edges with the interposition of a seal 13. For this purpose, the housing 11 has a circumferential, L-shaped cranked edge 14 with a sealing surface 15, whereas the tub 12 has at its edge a circumferential, U-shaped channel 16, the U-shape of which is open to the sealing surface 15 and into which the seal 13 is inserted. At the bottom of the housing 11, power supply devices 18 (which are only partially shown) are fastened via posts 17; A fluorescent lamp 19 and a reflector 20 are located in the area of the tub.

Parallel zu den Seitenwänden 21 befinden sich im Inneren des Gehäuses Schieberelemente 22, 23, wobei an der Innenfläche der gegenüberliegenden Seitenwand des Gehäuses 11 weitere Schieberelemente angeordnet sind, die hier nicht zu sehen sind.Parallel to the side walls 21 there are slide elements 22, 23 in the interior of the housing, with further slide elements being arranged on the inner surface of the opposite side wall of the housing 11, which cannot be seen here.

Das Schieberelement 22 ist in der Figur 1 näher dargestellt. Es ist ein langgestrecktes rechteckiges Bauteil, an dessen beiden Längskanten 24 und 25 etwa L-förmige Ausnehmungen 26 und 27 angeordnet bzw. eingebracht sind, deren L-Schenkel 28 bzw. 29 alle in eine der Längsrichtungen des Schieberelementes 22 ausgerichtet sind. An dem Ende des Schieberelementes 22, das der Richtung der L-Schenkel 28 und 29 der Ausnehmungen 26 und 27 entgegengesetzt liegt, ist ein Zahnstangensegment 30 angebracht, das mit seiner zahnfreien Kante 31 mit der Längskante 25 fluchtet, wogegen der Zahnbereich 32 von der zahnfreien Kante 31 deutlich weniger als die Mittellinie M-M entfernt ist.The slide element 22 is shown in more detail in FIG. 1. It is an elongated rectangular component, on the two longitudinal edges 24 and 25 of which approximately L-shaped recesses 26 and 27 are arranged or introduced, the L-legs 28 and 29 of which are all aligned in one of the longitudinal directions of the slide element 22. At the end of the slide element 22, which is opposite to the direction of the L-legs 28 and 29 of the recesses 26 and 27, a rack segment 30 is attached, which is aligned with the toothless edge 31 with the longitudinal edge 25, whereas the tooth area 32 from the toothless Edge 31 is significantly less than the center line MM.

Auf der Mittellinie befinden sich im Bereich der L-förmigen Ausnehmungen 26 Längsschlitze 33 und im Zwischenbereich sind Aussparungen 34 vorgesehen. Die Aussparungen 34 dienen lediglich der Materialersparnis, wogegen mittels der Längsschlitze eine horizontale Führung der Schieberelemente erreicht wird.On the center line there are longitudinal slots 33 in the region of the L-shaped recesses 26 and recesses 34 are provided in the intermediate region. The cutouts 34 only serve to save material, whereas the longitudinal slots guide the slide elements horizontally.

Aufgrund dieser erfindungsgemäßen Ausgestaltung des Schieberelementes kann das identisch ausgebildete Schieberelement 22 für alle Schieberelemente 22/23 im Inneren einer Langfeldleuchte verwendet werden, so daß lediglich eine einzige Ausgestaltung eines Schieberelementes vorrätig gehalten werden muß und damit die Lagerhaltung erheblich reduziert ist.Due to this embodiment of the slide element according to the invention, the identically designed slide element 22 can be used for all slide elements 22/23 in the interior of a linear luminaire, so that only a single configuration of a slide element has to be kept in stock and thus the storage is considerably reduced.

Anstatt das Schieberelement so auszubilden wie in Figur 1, kann das Schieberelement auch so, wie in Figur 2 dargestellt, geformt sein. Anstatt des Zahnstangensegments 30 ist eine Anformung 35 an der gleichen Schmalkante angeformt, welche Omega-förmige Durchbrüche oder Ausnehmungen 36 und 37 aufweist, die zur Schmalseitenkante hin offen sind. Das Zahnstangensegment 38 ist dann, wie in Figur 3 dargestellt, ein davon getrenntes Element, das an seinen entgegengesetzt liegenden Endkanten pilzartige Vorsprünge 39 und 40 aufweist, die in die Omega-förmigen Durchbrüche 36 und 37 einschnappbar sind. Die Durchbrüche 36 und 37 und die Vorsprünge 39 und 40 dienen dann praktisch als Kupplungen. Im montierten Zustand wird praktisch eine Ausgestaltung, wie in Figur 1 dargestellt, erzielt.Instead of forming the slide element as in FIG. 1, the slide element can also be shaped as shown in FIG. 2. Instead of the rack segment 30, a molded part 35 is formed on the same narrow edge, which has omega-shaped openings or recesses 36 and 37 which are open towards the narrow side edge. The rack segment 38 is then, as shown in FIG. 3, a separate element which has mushroom-like projections 39 and 40 on its opposite end edges, which can be snapped into the omega-shaped openings 36 and 37. The openings 36 and 37 and the projections 39 and 40 then serve practically as couplings. In the assembled state, a configuration as shown in FIG. 1 is practically achieved.

Es sei nun Bezug genommen auf die Figur 5.Reference is now made to FIG. 5.

In der Seitenwandung 21 des Gehäuses 11 befindet sich eine Bohrung 41, in der ein Antriebszapfen 42 abgedichtet drehbar gelagert ist. Das äußere Ende des Antriebszapfens 42 besitzt ein Mutternprofil 43, so daß der Zapfen 42 mittels eines Werkzeugs verdreht werden kann. Die Bohrung 41 ist von einem zylinderförmigen Kragen 44 umgeben, der als Schutzkragen dient.In the side wall 21 of the housing 11 there is a bore 41 in which a drive pin 42 is rotatably mounted in a sealed manner. The outer end of the drive pin 42 has a nut profile 43 so that the pin 42 can be rotated by means of a tool. The bore 41 is surrounded by a cylindrical collar 44, which serves as a protective collar.

Am im Gehäuse befindlichen inneren Ende des Antriebszapfens 42 ist ein Zahnrad 45 befestigt, an das eine Antriebswelle 46 anschließt, die auf der gegenüberliegenden Seitenwand in einem Sackloch (nicht näher dargestellt) gelagert ist.At the inner end of the drive pin 42 located in the housing, a gear 45 is fastened, to which a drive shaft 46 connects, which is mounted on the opposite side wall in a blind hole (not shown in more detail).

Die beiden Schieberelemente 22 und 23 (siehe Figur 2), wobei, wie oben erwähnt, das Schieberelement 23 identisch dem Schieberelement 22 entspricht und lediglich gedreht eingebaut ist, kämmen mit ihren Zahnstangensegmenten 30 mit dem Zahnrad 45, wobei das Zahnstangensegment 30 des Schieberelementes 23 oben und das Zahnstangensegement 30 des Schieberelementes 22 unten in das Zahnrad 45 eingreifen. Die Zahnsegmente besitzen dabei eine Leiste 47, die gegenüber der übrigen Dicke der Zahnsegmente schmaler ausgebildet ist, und deren freie Kante mit der Längskante 25 fluchtet.The two slide elements 22 and 23 (see FIG. 2), wherein, as mentioned above, the slide element 23 corresponds identically to the slide element 22 and is only installed in a rotated manner, mesh with their rack segments 30 with the gear wheel 45, the rack segment 30 of the slide element 23 at the top and the rack segment 30 of the slide element 22 engage below in the gear 45. The toothed segments have a bar 47 which is narrower than the remaining thickness of the toothed segments and whose free edge is aligned with the longitudinal edge 25.

Zur Führung der Zahnstangensegmente 30 ist ein Führungsgehäuse 48 vorgesehen, welches von der Antriebswelle 46 durchgriffen ist und eine Platte 49 aufweist; an zwei entgegengesetzt liegenden Seitenkanten ist an der Platte 49 je ein L-förmiger Vorsprung 50 und 51 angeformt, welche Anformungen eine U-förmige Rinne 52 und 53 bilden, die mit ihrer offenen U-Form aufeinander zuweisen und die Leisten 47 zur Führung aufnehmen.To guide the rack segments 30, a guide housing 48 is provided, which is penetrated by the drive shaft 46 and has a plate 49; On two opposite side edges, an L-shaped projection 50 and 51 is formed on the plate 49, which formations form a U-shaped groove 52 and 53, which face one another with their open U-shape and accommodate the strips 47 for guidance.

Wenn Schieberelemente gemäß Figur 2 vorgesehen sind, dann nimmt das Gehäuse 48 die beiden Zahnstangenelemente 38 oben und unten auf und dadurch ist ein einheitliches, vorfabrizierbares Zahnantriebselement geschaffen, mit dem die beiden gleich ausgebildeten Schieberelemente gemäß Figur 2 durch Einstecken der Vorsprünge 39 bzw. 40 in die Durchbrüche 36 bzw. 37 gekuppelt werden.If slide elements according to FIG. 2 are provided, then the housing 48 accommodates the two rack elements 38 at the top and bottom, and this creates a uniform, prefabricatable toothed drive element with which the two identical slide elements according to FIG. 2 are inserted by inserting the projections 39 and 40 in the openings 36 and 37 are coupled.

Die Wanne 12 besitzt im Bereich ihrer Rinne 16 an der Innenseite vorspringende Zapfen 54, die so angeordnet sind, daß die L-förmigen Ausnehmungen 26 sie hintergreifen. Die Anzahl der Zapfen entspricht der Anzahl der L-förmigen Ausnehmungen je zweier Schieberelemente.The tub 12 has in the region of its groove 16 on the inside protruding pins 54 which are arranged so that the L-shaped recesses 26 engage behind them. The number of pins corresponds to the number of L-shaped recesses per two slide elements.

Ein gleiches Gehäuse 48 mit den Zahnstangenelementen kann natürlich auch auf der gegenüberliegenden Seitenwand des Gehäuses 11 vorgesehen sien. In diesem Fall durchgreift, wie oben erwähnt, die Antriebswelle das Gehäuse parallel zum Bodenteil und senkrecht zur Längserstreckung der Langfeldleuchte 10.An identical housing 48 with the rack elements can of course also be provided on the opposite side wall of the housing 11. In this case, as mentioned above, the drive shaft extends through the housing parallel to the base part and perpendicular to the longitudinal extension of the linear light 10.

Wenn die Langfeldleuchte 10 geöffnet, d. h. die Wanne vom Gehäuse abgenommen werden soll, dann muß, damit die Wanne 12 nicht herabfällt, eine scharnierartige Verbindung zwischen der Wanne und dem Gehäuse vorgesehen sein. Zu diesem Zweck ist jeder Zapfen 54 als zylindrischer Zapfen mit einer Sacklochbohrung 55 ausgebildet, in den ein daran angepaßter Vorsprung 56 einschnappbar ist, an dem eine U-förmige Lasche 57 angeformt ist; man kann auch sagen, daß der Vorsprung an der U-förmigen Lasche 57 angeformt ist. Deren anderer Schenkel ist mit dem Gehäuse im Bereich eines Pfostens verbunden. Die Lasche 55 besitzt dabei zwei die U-Form aufweisende Stege, deren eine Schenkel mittels eines Verbindungsstegs 59 verbunden sind, wobei an dem Verbindungssteg 59 der Vorsprung 56 angeformt ist. Die anderen Enden der U-förmigen Stege der U-förmigen Lasche sind an einem Haltepfosten 60 am Gehäuse befestigt. Der Haltepfosten 60 ist in Abstand zu der Innenfläche der Seitenwand 21 vorgesehen bzw. angeordnet und er besitzt an seinem oberen freien Ende einen hin zur Seitenwand 21 gerichteten Führungsvorsprung 61, der in die Schlitze 33 eingreift und so zur horizontalen Führung der Schieberelemente 22/23 dient. Dieser Pfosten ist dabei zweigeteilt; er besitzt einen am Gehäuseboden angeformten unteren Pfostenteil 60a und einen mittels einer Schraubverbindung 62 daran befestigten oberen Pfostenteil 60b, an dem der Vorsprung 61 angeformt ist.If the linear light 10 is to be opened, ie the tub is to be removed from the housing, then a hinge-like connection between the tub and the housing must be provided so that the tub 12 does not fall down. For this purpose, each pin 54 is designed as a cylindrical pin with a blind hole 55 into which a projection 56 adapted to it can be snapped, on which a U-shaped tab 57 is formed; one can also say that the projection is formed on the U-shaped tab 57. The other leg is connected to the housing in the area of a post. The tab 55 has two webs having the U-shape, one leg of which is connected by means of a connecting web 59, the projection on the connecting web 59 56 is formed. The other ends of the U-shaped ridges of the U-shaped tab are attached to a support post 60 on the housing. The support post 60 is provided or arranged at a distance from the inner surface of the side wall 21 and has at its upper free end a guide projection 61 directed towards the side wall 21, which engages in the slots 33 and thus serves for the horizontal guidance of the slide elements 22/23 . This post is divided into two; it has a lower post part 60a molded onto the housing base and an upper post part 60b attached to it by means of a screw connection 62, on which the projection 61 is molded.

Am Gehäuseboden ist dabei eine der Anzahl der Schlitze 33 entsprechende Anzahl von Pfosten 60 mit einem Führungsvorsprung 61 angeformt.A number of posts 60 corresponding to the number of slots 33 is formed on the housing base with a guide projection 61.

Claims (7)

  1. Device for the releasable fastening of a light-transparent bowl on the housing of a long-field light, with at least one slide element which is guided so as to be longitudinally displaceable in the housing and which, in the closed state, engages with hooks behind projections attached to the bowl, and with a drive device for the slide element, which drive device has a gearwheel actuable from outside and meshing with a rack segment on the slide element, the slide element being displaceable out of the locking position into the releasing position and back by means of the drive device, characterised in that L-shaped recesses (26) are provided in identical orientation on the two longitudinal sides of each slide element (22, 23) in order to form the hooks, and in that, on the narrow side which is opposite to the direction of the leg (29) of each recess, the said leg extending approximately parallel to the adjacent longitudinal side, the rack segment (32) is located outside the longitudinal centre line (M-M) of the slide element and arranged so as to project perpendicularly to the narrow side, its rack-free edge (31) being approximately aligned with one of the longitudinal edges of the slide element (22, 23), and the toothed portion (32) being at a distance from the longitudinal centre line (M-M).
  2. Device according to Claim 1, characterised in that two identically designed slide elements (22, 23) are guided on at least one longitudinal side of the long-field light (10) so as to be aligned one behind the other and displaceable parallel to the longitudinal side, the rack segments (30) overlapping one another, and there being located between them the gearwheel (45) which meshes with the two toothed portions in such a way that the slide elements move towards one another during rotation into the locking position, and vice versa.
  3. Device according to Claim 2, characterised in that the width of the rack element (30, 38) transversely to its longitudinal extension is clearly smaller than half the width of the slide element (22).
  4. Device according to one of the preceding claims, characterised in that the rack element (30) is formed on the slide element (22).
  5. Device according to one of Claims 1 to 3, characterised in that the rack segment (38) is an individual element which can be coupled mechanically to the slide element.
  6. Device according to one of the preceding claims, characterised in that a guide housing (48) is provided for the rack segments (30, 38).
  7. Device according to Claim 6, characterised in that the guide housing (48) has a plate (49), on two opposite side edges of which are formed respective L-shaped formed-on portions (50, 51) which each form a U-shape, which point towards one another with their open U-shape and which receive the rack segments (30, 38) for their guidance.
EP90105311A 1989-03-25 1990-03-21 Device to detachably secure the cover to the housing of an elongated light fixture Expired - Lifetime EP0392223B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT90105311T ATE94630T1 (en) 1989-03-25 1990-03-21 DEVICE FOR REMOVABLE LOCKING THE TRAY TO THE HOUSING OF A STRIP LAMP.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3909891A DE3909891A1 (en) 1989-03-25 1989-03-25 DEVICE FOR DETACHABLE LOCKING OF THE TUB TO THE HOUSING OF A LONG-FIELD LAMP
DE3909891 1989-03-25

Publications (2)

Publication Number Publication Date
EP0392223A1 EP0392223A1 (en) 1990-10-17
EP0392223B1 true EP0392223B1 (en) 1993-09-15

Family

ID=6377225

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90105311A Expired - Lifetime EP0392223B1 (en) 1989-03-25 1990-03-21 Device to detachably secure the cover to the housing of an elongated light fixture

Country Status (5)

Country Link
EP (1) EP0392223B1 (en)
AT (1) ATE94630T1 (en)
DE (2) DE3909891A1 (en)
ES (1) ES2046569T3 (en)
NO (1) NO901358L (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4309034C2 (en) * 1993-03-20 1996-07-18 Braun Ag Electrical appliance
DE102005001192B4 (en) * 2005-01-10 2009-10-29 BöSha Technische Produkte GmbH & Co. KG Central locking for explosion protective linear fluorescent luminary, has two rails, where area of rotating axle is provided with cam

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH335380A (en) * 1954-07-30 1958-12-31 Schneider & Co Dr Ing Luminaire designed for outdoor use
CH439181A (en) * 1964-08-22 1967-07-15 Schuppli Josef Suspension device, in particular for ceiling lamps
BE757244A (en) * 1969-10-22 1971-03-16 Concordia Elektrizitaets Ag LOCKING DEVICE FOR ELONGATED LANTERNS
DE3230337A1 (en) * 1982-08-14 1984-02-16 Maehler & Kaege Ag, 6507 Ingelheim Locking device for a lighting fixture
EP0199987A3 (en) * 1985-04-04 1989-02-01 Georg Maurus Lock, especially for a suitcase

Also Published As

Publication number Publication date
DE3909891A1 (en) 1990-09-27
EP0392223A1 (en) 1990-10-17
NO901358D0 (en) 1990-03-23
NO901358L (en) 1990-09-26
DE59002692D1 (en) 1993-10-21
ATE94630T1 (en) 1993-10-15
ES2046569T3 (en) 1994-02-01

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