AT239374B

AT239374B - Switching device for preferably explosion-proof lights

Info

Publication number: AT239374B
Application number: AT765263A
Authority: AT
Inventors: Simon Fiedler; Hans Ing Geppert; Erich Ing Schmid
Original assignee: Siemens Schuckertwerke Gmbh
Priority date: 1963-09-24
Filing date: 1963-09-24
Publication date: 1965-04-12
Also published as: DE1955510U

Description

  

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  Schalteinrichtung für vorzugsweise explosionsgeschützte Leuchten 
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   Ein Ausführungsbeispiel des Erfindungsgegenstandes ist in der Zeichnung dargestellt. Eine oder mehrere   röhrenförmige   Leuchtstofflampen   l   sind samt ihrem Schutzrohr 2 mittels der Lampenfassung 3 und der Gewindebüchse 4 im Tragbalken 5 der Leuchte gehalten. An den Enden des Tragbalkens 5 sind zwei   Abschlussdeckel 6   mittels der Schrauben   7, 8   und 9 an ihn angesetzt. An mindestens einem der Schraubendeckel 6 ist eine Abdeckhaube 10, die mittels eines einzigen, als unverlierbare Schaltschraube 11 ausgebildeten, die Schaltung bewirkenden Befestigungselementes niedergehalten ist, befestigt.

   Die Abdeckhaube 10 ist vorteilhaft als Blechplatte ausgebildet, welche zwischen zwei entlang der Längskanten des an seiner nach aussen weisendenseite flach   ausgebildetenAbschlussdeckels   6 verlaufenden Rippen 12 geführt ist. An diesem Abschlussdeckel 6 ist ein über einen Stössel 13 und die Schaltschraube 11 ein-und ausschaltbarer Schalter 14 befestigt. Die als Blechplatte ausgebildete Abdeckhaube 10 kann nach Lösen der Schaltschraube 11, wodurch die Leuchte durch den Schalter 14 spannungslos wurde, über die Rippen 12 hinweg verschwenkt werden und gibt dadurch die   Verschlussschraube 7.   8 und 9 frei. 



   PATENTANSPRÜCHE : 
1. Vorzugsweise explosionsgeschützte Leuchte, insbesondere für eine oder mehrere röhrenförmige Leuchtstofflampen, mit einer Schalteinrichtung, welche das Einsetzen und Herausnehmen der Lampen nur im spannungslosen Zustand ermöglicht, dadurch gekennzeichnet, dass Verschlussorgane (7,8, 9), welche zum Öffnen der Leuchte gelöst oder verstellt werden müssen, von einer Abdeckhaube (10) gegen Zugriff von Werkzeugen gesichert sind, welche von mindestens einem lösbaren oder verstellbaren Befestigungselement (11) in seiner Lage fixiert ist, wobei dieses das Lampengehäuse durchsetzende Befestigungselement (11) einen im Gehäuseinneren befindlichen Schalter (14) derart   betätigt.   dass die Lampen   (1)   bereits beim Lösen der Abdeckhaube (10) stromlos werden, so dass die Verschlussorgane (7,8, 9),

   welche für das Entfernen der Lampen   (1)   gelöst werden müssen, insbesondere ein im wesentlichen zentral angeordnetes Verschlussorgan (8), erst nach Abnahme der Abdeckhaube (10) im stromlosen Zustand der Lampen   (1)   betätigt werden können.



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  Switching device for preferably explosion-proof lights
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   An embodiment of the subject matter of the invention is shown in the drawing. One or more tubular fluorescent lamps l are held together with their protective tube 2 by means of the lamp socket 3 and the threaded bushing 4 in the support beam 5 of the lamp. At the ends of the support beam 5, two cover plates 6 are attached to it by means of the screws 7, 8 and 9. At least one of the screw caps 6 has a cover 10, which is held down by means of a single fastening element designed as a captive switching screw 11 and causing the switching.

   The covering hood 10 is advantageously designed as a sheet metal plate which is guided between two ribs 12 running along the longitudinal edges of the cover 6, which is flat on its outwardly facing side. A switch 14 that can be switched on and off via a plunger 13 and the switching screw 11 is fastened to this end cover 6. The cover 10, which is designed as a sheet metal plate, can be pivoted over the ribs 12 after loosening the switching screw 11, whereby the lamp was de-energized by the switch 14, thereby releasing the locking screw 7, 8 and 9.



   PATENT CLAIMS:
1. Preferably explosion-proof luminaire, in particular for one or more tubular fluorescent lamps, with a switching device which allows the lamps to be inserted and removed only when the lamp is de-energized, characterized in that locking elements (7, 8, 9) which are released to open the lamp or must be adjusted, are secured against access by tools by a cover hood (10) which is fixed in its position by at least one detachable or adjustable fastening element (11), this fastening element (11) penetrating the lamp housing a switch located inside the housing ( 14) operated in this way. that the lamps (1) are already de-energized when the cover (10) is loosened, so that the closure members (7, 8, 9),

   which have to be released in order to remove the lamps (1), in particular an essentially centrally arranged locking element (8), can only be actuated after the cover (10) has been removed when the lamps (1) are de-energized.

Claims

2. Luminaire according to claim 1, characterized in that when using a housing which consists essentially of a support beam (5). a protective tube (2) or the like running parallel to it for the tubular lamp (1) and two end caps (6) which are attached to the ends of the supporting beam (5), containing the lamp sockets (3) and the protective tube (2), a cover hood (10) is provided on at least one of the end covers (6), which covers the outwardly lying side of the end cover (6).

3. Lamp according to claim 2, characterized in that the cover (10) as a sheet metal plate od. Dg1. is trained. which is guided between two ribs (12) running along the longitudinal edges of the cover (6), which is flat on its outwardly facing side, or in a groove thereof, the height of the ribs (12) or the. Groove depth is the same as the switching path of the switch (14) or slightly larger than this and the sheet metal plate (10) or the like is held down by a single fastening element designed as a captive switching screw (11) and causing the switching so that it can be removed after the The screw (11) can be pivoted about the same over the ribs (12) or the groove and releases the closure elements (7, 8, 9) of the lamp.

4. Light according to claim 2, characterized in that the switch (14) which can be switched on and off via a plunger (13) by the screw (11) is fastened to one of the end covers (6).

5. Light according to claim 2, 3 or 4, characterized in that a screw (8) in the support beam (5) with its pin end fixes the mounting ring of the threaded bushing (4) with tooth pitch on the circumference, the head of the screw (8) directly is under the cover (10) and therefore the screw (8) can only be loosened after the cover (10) has been removed, and that the cover (6) can only be removed and the fluorescent lamp (1st) removed after loosening the screws (7, 8, 9) ) together with the protective tube (2) can be pulled out through the supporting beam (5).