EP0159527B1 - Light fixture - Google Patents

Light fixture Download PDF

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Publication number
EP0159527B1
EP0159527B1 EP85103071A EP85103071A EP0159527B1 EP 0159527 B1 EP0159527 B1 EP 0159527B1 EP 85103071 A EP85103071 A EP 85103071A EP 85103071 A EP85103071 A EP 85103071A EP 0159527 B1 EP0159527 B1 EP 0159527B1
Authority
EP
European Patent Office
Prior art keywords
housing
protective shroud
light according
light
lamp
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
Application number
EP85103071A
Other languages
German (de)
French (fr)
Other versions
EP0159527A1 (en
Inventor
Reinhard Neumann
Cornelius Ploeger
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.)
CEAG Licht und Stromversorgungstechnik GmbH
Original Assignee
CEAG Licht und Stromversorgungstechnik GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by CEAG Licht und Stromversorgungstechnik GmbH filed Critical CEAG Licht und Stromversorgungstechnik GmbH
Priority to AT85103071T priority Critical patent/ATE32255T1/en
Publication of EP0159527A1 publication Critical patent/EP0159527A1/en
Application granted granted Critical
Publication of EP0159527B1 publication Critical patent/EP0159527B1/en
Expired 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
    • F21V25/00—Safety devices structurally associated with lighting devices
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05F—STATIC ELECTRICITY; NATURALLY-OCCURRING ELECTRICITY
    • H05F3/00—Carrying-off electrostatic charges
    • H05F3/02—Carrying-off electrostatic charges by means of earthing connections

Definitions

  • the invention relates to a lamp according to the preamble of claim 1.
  • a lamp of this type has become known, for example, from DE-A 3011 092.
  • this lamp is a hand lamp and DE-A 3011 092 essentially deals with the problem of how the power cord can be used inside the housing.
  • Luminaires that are to be used as explosion-proof luminaires for zones 1 and 2 or as industrial luminaires must meet certain regulations.
  • regulations are, for example, VDE-0165 from 9/83, the British Standard regulations, the so-called UL regulation in the USA and the European standard EN 50018 «d» and 50019 «e».
  • Such lights are composed of a lower housing part - housing for short - and a translucent protective hood.
  • metallic enclosures with protective covers made of glass are mainly used in Zone 2 hazardous areas. These lights are highly susceptible to corrosion and have a high weight.
  • the translucent protective hoods are protected with a suitably designed protective basket.
  • the object of the invention is to provide a lamp of the type mentioned, in which the weight is significantly reduced and in which the susceptibility to corrosion is reduced.
  • the housing Due to its surface design, the housing is suitable for higher heat radiation on the one hand, so that essential advantages can already be seen here. If metal is used as the material for the housing, ignitable discharges due to electrostatic charging are not possible. In the case of plastics whose surface resistance is higher than 10 9 ohms, charges can be caused by friction which can be discharged with an energy sufficient to ignite explosive gas, dust and air mixtures. Surface areas are formed with the ribs which have dimensions such that discharges generated or caused by electrostatic charges certainly do not have sufficient energy to ignite the explosive ambient atmosphere. In general, it is expedient to make the statically chargeable surfaces smaller than 100 cm 2 .
  • the plastic can contain fiber reinforcement or fiber reinforcement.
  • the lamp On the end side, i.e. the end of the housing, means are provided for the adjustable mounting of the housing on a wall or on a ceiling or for the adjustable attachment of a handle. Because of these means, which can be, for example, holding brackets or the like, the lamp can be used both as a portable hand lamp and as a ceiling spotlight or can be attached to a mast.
  • a guideway can be provided in the housing, which guides the insert and on which the insert can be locked, and in addition, a transverse part can be integrally formed on the insert, the dimensions of which correspond to the opening, so that the opening can be closed with the cross part in the form of a cover is.
  • connection terminals can be placed on the plug-in unit, so that the subsequent connection or reclamping is made considerably easier. It is then only necessary to pull the insert out of the housing and not, as in the known arrangements, to remove the protective hood in order to access the electrical components arranged inside the housing.
  • This embodiment according to the invention with the insert can, of course, be used in all types of lights in which a housing with electrical supply elements and a protective hood are provided, which are manufactured separately from one another and are coupled to one another for mounting the light.
  • a further advantageous embodiment of the invention can be such that the interior of the housing is divided into at least two compartments by at least one intermediate wall, one compartment of which delimits the space accommodating the insert.
  • a further compartment can be formed by a further bulkhead wall, which is reserved for the insertion of electrical components which serve to ignite and operate the lamp.
  • the partition can be adapted to the components. If, for example, a cylindrical capacitor and a starter are to be inserted into the housing, this intermediate wall can have a curved shape, which at least partially adapts to the contours of the two adjacent elements. This results in an improved position fixation of these two elements.
  • a further particularly advantageous embodiment of the invention can be found in claims 11 and 12. Fitting the protective hood to the housing always poses special problems.
  • the protective hood can be attached to the housing and initially fixed by rotating it relative to the housing in the manner of a bayonet lock.
  • the protective hood is fixed to the housing with the locking element, so that the protective hood is definitely prevented from falling off the housing.
  • This embodiment of the invention is also not exclusively applicable to the luminaire of the type mentioned at the outset, but can advantageously also be provided in other types of luminaires in which the luminaire has a housing and a protective hood attached to it.
  • the type of fastening is particularly advantageous for use in explosion-proof luminaires, since a prescribed air gap with a corresponding gap width and gap length can additionally be provided between the protective hood and the housing.
  • 1 and 2 has a housing 10 to which a protective hood 11 made of a clear material is attached.
  • a protective hood 11 made of a clear material is attached.
  • flanges 12 and 13 are provided on both sides, by means of which the housing can be screwed onto a wall or a ceiling.
  • extensions 14 and 15 are provided, on which an approximately U-shaped bracket 16 is articulated, with which the lamp can be attached to a mast.
  • the free edge 19 of the housing 10 comprises the free edge 20 of the protective hood 11, with the interposition of a seal (see FIG. 6).
  • a step 21 is provided on the inner surface of the housing 10 in the region of the edge 19, to which a mounting plate (support plate) 22 is attached and fastened to it in a manner not shown in FIG. 1 (see FIG. 6).
  • a clamping element 23 is fastened, which can be designed in the form of a luster terminal and serves for the electrical connection or for the electrical wiring from an external connection (not shown) to a lamp 24.
  • a holder 25 for the lamp 24 is fastened, into which the thread of the lamp 24 can be screwed.
  • the socket 25 carries an internal reflector 26 and on the side of the support plate 22 on which the socket is attached, a microswitch 27 is attached, which cooperates with the free edge 20 of the protective hood 11 and is actuated when the protective hood 11 is removed.
  • the protective hood 11 which is designed in the form of a pot, is designed on the inner surface of the pot wall 29 with stepped lenses 30 for guiding light and with internal longitudinal grooves 31 for limiting glare, the outer surface being smooth.
  • a ballast 32 for the lamp 24 is fastened on the support plate 22 directly opposite the socket.
  • a receptacle 35 for each protective cage half 33, 34 is attached to the outer surface of the housing edge 19, which has a recess, not shown, into which hooks 36 formed on each protective cage engage in an articulated manner.
  • an outer screen 37 can also be provided, the installation of which can be seen in more detail in FIG. 6.
  • the outer surface of the housing 10 is provided with ribs 38 which are arranged or distributed uniformly on the circumference of the housing - running in the longitudinal direction. As a result, surfaces are formed which do not allow such a static charge, which could lead to an ignitable discharge; the individual surface areas are not larger than 100 cm 2 .
  • the housing 10 has a circular recess or opening 40 on the side wall, into which an insert 41 can be inserted, on which the clamping modules 42 are fastened.
  • a transverse part 43 is formed on the insert 41, the dimensions of which correspond to the opening 40 and thus serve as a cover for this opening.
  • the outer surface of the cross member 43 has in the same way the grooves or ribs 38, which is indicated in Fig. 2 by the serpentine line.
  • the circular, cylinder-like cross member 43 has a flange-like rim 44, which is adjoined on the inside by a cylindrical extension 45, which has a groove 46 for receiving a seal 47. Together with the boundary surface 48 for the opening, the seal 46/47 forms a so-called vapor-tight seal for the interior of the housing.
  • Bulkheads 49 and 50 are provided inside the housing; the bulkhead 49, together with the bulkhead 50, partially delimits the space 51 into which the insert 41 is inserted; the two bulkhead walls 49 and 50 together delimit a partitioning space 52 in which an ignition pulse 53 and a capacitor 54 are provided for the supply or ignition of the lamp 24. It can be seen from FIG. 2 that the bulkheads 49 and 50 in the area in which they delimit the space 52 are adapted to the outer circumferential shapes of the ignition pulse 53 and the capacitor 54.
  • connection elements or extension pieces 14 and 15 delimit insertion openings 55 for the electrical supply lines (not shown).
  • the protective hood is made of plastic, static charges can form on it.
  • longitudinal webs 56 (only one web can be seen in FIG. 1) which divide the surface of the protective hood 11 into sections which allow a static charge which is lower than that which could produce ignitable discharges.
  • FIGS. 1 to 3 The representation in FIGS. 1 to 3 is more schematic, whereas the embodiments shown in FIGS. 4 and ff. Allow the individual details to emerge more clearly.
  • the bulkhead 49 forms a single part together with the bulkhead 50 and the housing 10, that is to say it is made in one piece with it, whereas the area of the bulkhead 49 that divides the space 52 represents a separate sub-element that connects with the the area 51 of the bulkhead partitioning the space 51 is firmly connected by means of a screw connection 59.
  • the bulkhead area formed separately from the bulkhead 49 has the reference number 60; this area is exactly adapted to the outer shape of the ignition pulse 53 or the capacitor 54, with recesses 61 and 62 being provided in the bulkhead 60, which have the shape of slots and through which holding straps 63 and 64 for the ignition pulse 53 and are threaded through the capacitor 54.
  • Fig. 7 shows a sectional view along section line VII-VII.
  • the space 52 in which the capacitor 54 is arranged can be seen.
  • This space 52 is separated from the receiving space 51 for the insert 41 by means of the bulkhead 50.
  • the insert 41 is guided on rails 66 and 67 located in the space 51, the rails 66 and 67 having grooves 68 and 69, into which springs (strips) 70 and 71 formed on the insert 41 engage and slide therein.
  • the free ends of the rails 68 and 69 have inward-facing stop lugs 72, 73 which partially overlap the insert 41.
  • upstanding stop cams 90 and 91 are to be provided which interact with the stop lugs 72, 73, as a result of which the insert 41 is prevented from being pulled out, but at least is hindered.
  • the cross member 43 is bent according to the circumference of the housing, the rim 44 coming to bear against the outer edge of the opening 40.
  • the cross member 43 is fixed to the housing by means of the fastening screw connection 58.
  • FIG. 7 shows the housing circumference with the ribs 38, which do not have a snake shape as shown schematically in FIG. 3, but actually have a square zigzag shape.
  • FIGS. 5 and 6 Reference is now made to FIGS. 5 and 6.
  • the edge area 19 comprises the edge area 20 of the protective hood 11.
  • the protective hood has two adjacent circumferential grooves 74 and 74a, which are parallel to one another, a seal 75 (see also FIG. 1) being inserted in the groove 74.
  • the protective hood 11 has two diametrically opposed, radially outwardly projecting pins 76 (if there are four pins, these are arranged offset by 90 ° on the circumference).
  • the length of the pins 76 is selected such that the distance of the free pin surfaces 77 from the central axis of the protective hood 11 is at least as large as the outer diameter of the rim 19.
  • the rim 19 has hook-shaped recesses 78, as can be seen in FIG. which have an area 79 running in the axial direction of the housing 10 and an adjoining area 80 which is angled at 90 ° thereto and extends in the circumferential direction. Their width is adapted to the diameter of the pin 76.
  • the edge 19 has a circular extension 85 in the area 80, into which a projection 82 is inserted on a locking bush 81 which is held in the extension 85 by means of lugs 86 formed on the projection 82.
  • the locking bushing 81 has a flange-like collar 87 which has a radial axial depression 88.
  • two ribs 89 extending radially to the extension 85 are provided, offset by 90 °, which are adapted to the recess 88, so that the bushing 81 can be locked in two positions, in which the ribs 89 snap into the recesses 88 .
  • the bushing 81 has a slot at 82a (not shown in more detail) adapted to the pin 76 and the recess 78, so that the pin 76 can be moved in and out of the area 80 or in it depending on its position, when the bushing is inserted is held.
  • the protective hood with its pin 76 is inserted into the recesses 78, first in the region 79 in the direction of the central axis of the protective hood and the housing and in the area 80 rotated relative to the housing until the pin 76 comes to the end of area 80.
  • the pins 76 also get into the cylindrical blind hole 92 delimited by the projection 82.
  • the locking bushings 81 are rotated by means of a tool by means of a slot 83, whereby the pins are removed from the Protrusion are enclosed and thus an immovable fixing of the pin 76 and the protective hood 11 takes place.
  • the screen 37 is also fixed simultaneously with the fixing of the protective hood 11 via the pins 76 and the locking bushing 81. This has in the region of the pins 76 bores 84 which are pushed over the pins 76 before the protective hood 11 is attached to the housing.
  • a connecting element 93 is provided which is bendable and on the one hand on the housing 10 and on the other hand on the Protective hood is attached in a manner not shown.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Fastening Of Light Sources Or Lamp Holders (AREA)
  • Lasers (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Road Signs Or Road Markings (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Finger-Pressure Massage (AREA)

Abstract

1. Light with a housing (10) accommodating electric components (23, 32, 53, 54), on which housing a support plate (22) for the holding of a reflector (26) and a lamp (24) is fixed, and with a protective shroud (11) of clearly transparent material for the covering of lamp and reflector, which protective shroud is detachably connected to the housing and has a light-conductive profiling, the housing being detachably connected to the protective shroud, characterized in that the housing (10) is made of plastic and is provided with so many ribs (38) on its outer surface, for the subdivision of the same that sections are formed, the area dimensions of which prevent an electrostatic charge leading to an ignitable discharge.

Description

Die Erfindung betrifft eine Leuchte gemäss dem Oberbegriff des Anspruches 1.The invention relates to a lamp according to the preamble of claim 1.

Eine Leuchte dieser Art ist beispielsweise aus der DE-A 3011 092 bekanntgeworden. Diese Leuchte allerdings ist eine Handleuchte und die DE-A 3011 092 befasst sich im wesentlichen mit dem Problem, wie das Netzkabel ins Innere des Gehäuses eingesetzt werden kann.A lamp of this type has become known, for example, from DE-A 3011 092. However, this lamp is a hand lamp and DE-A 3011 092 essentially deals with the problem of how the power cord can be used inside the housing.

Leuchten, die als ex-geschützte Leuchten für die Zonen 1 und 2 oder als Industrieleuchten eingesetzt werden sollen, müssen bestimmten Vorschriften genügen. Derartige Vorschriften sind beispielsweise die VDE-0165 aus 9/83, die Vorschriften British-Standard, die sogenannten UL-Vorschrift in USA bzw. die Europanorm EN 50018 «d» bzw. 50019 «e».Luminaires that are to be used as explosion-proof luminaires for zones 1 and 2 or as industrial luminaires must meet certain regulations. Such regulations are, for example, VDE-0165 from 9/83, the British Standard regulations, the so-called UL regulation in the USA and the European standard EN 50018 «d» and 50019 «e».

Derartige Leuchten werden aus einem Gehäuseunterteil - kurz Gehäuse genannt - und einer lichtdurchlässigen Schutzhaube zusammengesetzt. Zur Zeit sind in explosionsgefährdeten Bereichen der Zone 2 vorwiegend metallische Gehäuse mit Schutzhauben aus Glas im Einsatz. Diese Leuchten sind stark korrosionsanfällig und besitzen ein hohes Gewicht. Die lichtdurchlässigen Schutzhauben sind mit einem geeignet ausgebildeten Schutzkorb geschützt.Such lights are composed of a lower housing part - housing for short - and a translucent protective hood. Currently, metallic enclosures with protective covers made of glass are mainly used in Zone 2 hazardous areas. These lights are highly susceptible to corrosion and have a high weight. The translucent protective hoods are protected with a suitably designed protective basket.

Aufgabe der Erfindung ist es, eine Leuchte der eingangs genannten Art zu schaffen, bei der das Gewicht erheblich reduziert ist und bei der die Korrosionsanfälligkeit verringert ist.The object of the invention is to provide a lamp of the type mentioned, in which the weight is significantly reduced and in which the susceptibility to corrosion is reduced.

Diese Aufgabe wird erfindungsgemäss durch die in dem kennzeichnenden Teil des Anspruches 1 angegebenen Merkmale gelöst.This object is achieved according to the invention by the features specified in the characterizing part of claim 1.

Das Gehäuse ist aufgrund seiner Oberflächenausbildung zum einen für höhere Wärmeabstrahlung geeignet, so dass schon hierin wesentliche Vorteile zu sehen sind. Bei Verwendung von Metall als Material für Gehäuse sind zündfähige Entladungen aufgrund elektrostatischer Aufladung nicht möglich. Bei Kunststoffen, deren Oberflächenwiderstand höher als 109 Ohm liegt, können durch Reibung Aufladungen bewirkt werden, die mit einer Energie entladbar sind, die ausreicht, explosible Gas-, Staub- Luftgemische zu zünden. Mit den Rippen werden Oberflächenbereiche gebildet, die solche Abmessungen aufweisen, dass durch elektrostatische Aufladungen erzeugte bzw. bewirkte Entladungen mit Sicherheit keine zum Zünden der explosiblen Umgebungsatmosphäre ausreichende Energie besitzen. Im allgemeinen ist es zweckmässig, die statisch aufladbaren Oberflächen kleiner als 100 cm2 auszubilden.Due to its surface design, the housing is suitable for higher heat radiation on the one hand, so that essential advantages can already be seen here. If metal is used as the material for the housing, ignitable discharges due to electrostatic charging are not possible. In the case of plastics whose surface resistance is higher than 10 9 ohms, charges can be caused by friction which can be discharged with an energy sufficient to ignite explosive gas, dust and air mixtures. Surface areas are formed with the ribs which have dimensions such that discharges generated or caused by electrostatic charges certainly do not have sufficient energy to ignite the explosive ambient atmosphere. In general, it is expedient to make the statically chargeable surfaces smaller than 100 cm 2 .

Zur Erhöhung der Festigkeit des Gehäuses kann der Kunststoff eine Faserverstärkung bzw. Faserarmierung enthalten.To increase the strength of the housing, the plastic can contain fiber reinforcement or fiber reinforcement.

An der Endseite, d.h. der Abschlussseite des Gehäuses, sind Mittel zur verstellbaren Halterung des Gehäuses an einer Wand oder an einer Decke bzw. zum verstellbaren Anbringen eines Handgriffes vorgesehen. Aufgrund dieser Mittel, die bspw. Haltebügel oder dergleichen sein können, kann die Leuchte sowohl als tragbare Handleuchte als auch als Dekkenstrahler eingesetzt bzw. an einem Mast befestigt werden.On the end side, i.e. the end of the housing, means are provided for the adjustable mounting of the housing on a wall or on a ceiling or for the adjustable attachment of a handle. Because of these means, which can be, for example, holding brackets or the like, the lamp can be used both as a portable hand lamp and as a ceiling spotlight or can be attached to a mast.

Eine besonders vorteilhafte Ausgestaltung der Erfindung ist den kennzeichnenden Merkmalen des Anspruches 6 zu entnehmen. Dabei kann im Gehäuse eine Führungsbahn vorgesehen sein, die den Einschub führt und an der der Einschub festrastbar ist, und zusätzlich kann am Einschub ein Querteil angeformt sein, dessen Abmessungen der Öffnung entsprechen, so dass die Öffnung mit dem Querteil quasi in Form eines Deckels verschliessbar ist.A particularly advantageous embodiment of the invention can be found in the characterizing features of claim 6. In this case, a guideway can be provided in the housing, which guides the insert and on which the insert can be locked, and in addition, a transverse part can be integrally formed on the insert, the dimensions of which correspond to the opening, so that the opening can be closed with the cross part in the form of a cover is.

Aufgrund dieser erfindungsgemässen Ausgestaltung können Bauelemente, die für den Betrieb der Leuchte erforderlich sind, auf dem Einschub befestigt werden, so dass die Montage und Überwachung dieser einzelnen Bauelemente erheblich vereinfacht wird. Zweckmässigerweise können auf dem Einschub Anschlussklemmen aufgesetzt werden, so dass das nachträgliche Anschliessen bzw. Umklemmen erheblich erleichtert ist. Es ist dann nämlich nur noch erforderlich, den Einschub aus dem Gehäuse herauszuziehen und nicht, wie bei den bekannten Anordnungen die Schutzhaube zu entfernen, um an die im Inneren des Gehäuses angeordneten elektrischen Bauelemente heranzukommen.On the basis of this configuration according to the invention, components which are necessary for the operation of the lamp can be fastened on the insert, so that the assembly and monitoring of these individual components is considerably simplified. Conveniently, connection terminals can be placed on the plug-in unit, so that the subsequent connection or reclamping is made considerably easier. It is then only necessary to pull the insert out of the housing and not, as in the known arrangements, to remove the protective hood in order to access the electrical components arranged inside the housing.

Diese erfindungsgemässe Ausgestaltung mit dem Einschub kann natürlich bei allen Arten von Leuchten verwendet werden, bei denen ein Gehäuse mit elektrischen Versorgungselementen und eine Schutzhaube vorgesehen sind, die getrennt voneinander angefertigt und zur Montage der Leuchte miteinander gekoppelt werden.This embodiment according to the invention with the insert can, of course, be used in all types of lights in which a housing with electrical supply elements and a protective hood are provided, which are manufactured separately from one another and are coupled to one another for mounting the light.

Eine weitere vorteilhafte Ausgestaltung der Erfindung kann dahingehen, dass der Innenraum des Gehäuses durch wenigstens eine Zwischenwand in wenigstens zwei Abteile unterteilt ist, von denen ein Abteil den den Einschub aufnehmenden Raum umgrenzt. Dabei kann ein weiteres Abteil durch eine weitere Schottwand gebildet werden, das zum Einsetzen von zur Zündung und zum Betrieb der Lampe dienenden elektrischen Bauelementen vorbehalten ist. Die Zwischenwand kann den Bauelementen angepasst werden. Wenn beispielsweise ein zylinderförmiger Kondensator und ein Starter in das Gehäuse eingesetzt werden sollen, kann diese Zwischenwand eine geschweifte Form aufweisen, die sich zumindest zum Teil den Konturen der beiden nebeneinanderliegenden Elemente anpasst. Dadurch wird eine verbesserte Lagefixierung dieser beiden Elemente bewirkt.A further advantageous embodiment of the invention can be such that the interior of the housing is divided into at least two compartments by at least one intermediate wall, one compartment of which delimits the space accommodating the insert. In this case, a further compartment can be formed by a further bulkhead wall, which is reserved for the insertion of electrical components which serve to ignite and operate the lamp. The partition can be adapted to the components. If, for example, a cylindrical capacitor and a starter are to be inserted into the housing, this intermediate wall can have a curved shape, which at least partially adapts to the contours of the two adjacent elements. This results in an improved position fixation of these two elements.

Ein weitere besonders vorteilhafte Ausgestaltung der Erfindung ist den Ansprüchen 11 und 12 zu entnehmen. Besondere Probleme bereitet nämlich immer das Befestigen der Schutzhaube am Gehäuse. Aufgrund der erfindungsgemässen Ausgestaltung kann die Schutzhaube an das Gehäuse angesetzt und durch Verdrehen gegenüber dem Gehäuse nach Art eines Bajonett-Verschlusses zunächst fixiert werden. Zusätzlich wird mit dem Verriegelungselement die Schutzhaube am Gehäuse festgelegt, so dass mit Sicherheit ein Herabfallen der Schutzhaube von dem Gehäuse vermieden wird. Es besteht dann noch die weitere Möglichkeit, die Schutzhaube mit dem Gehäuse über ein zusätzliches Halteelement gemäss kennzeichnenden Merkmalen des Anspruches 13 zu verbinden, wobei dieses Halteelement die Unverlierbarkeit der Schutzhaube gegenüber dem Gehäuse sicherstellt. Auch diese Ausgestaltung der Erfindung ist nicht ausschliesslich bei der Leuchte der eingangs genannten Art anwendbar, sondern kann vorteilhaft auch noch bei anderen Arten von Leuchten vorgesehen werden, bei denen die Leuchte ein Gehäuse und eine daran angebrachte Schutzhaube aufweist. Allerdings ist die Art der Befestigung besonders vorteilhaft anzuwenden bei explosionsgeschützten Leuchten, da nämlich zusätzlich zwischen der Schutzhaube und dem Gehäuse ein vorgeschriebener Luftspalt mit entsprechender Spaltweite und Spaltlänge vorgesehen werden kann.A further particularly advantageous embodiment of the invention can be found in claims 11 and 12. Fitting the protective hood to the housing always poses special problems. On the basis of the configuration according to the invention, the protective hood can be attached to the housing and initially fixed by rotating it relative to the housing in the manner of a bayonet lock. In addition, the protective hood is fixed to the housing with the locking element, so that the protective hood is definitely prevented from falling off the housing. There is then still the further possibility of connecting the protective hood to the housing via an additional holding element according to the characterizing features of claim 13, this holding element making the protective hood captive in relation to the housing ensures. This embodiment of the invention is also not exclusively applicable to the luminaire of the type mentioned at the outset, but can advantageously also be provided in other types of luminaires in which the luminaire has a housing and a protective hood attached to it. However, the type of fastening is particularly advantageous for use in explosion-proof luminaires, since a prescribed air gap with a corresponding gap width and gap length can additionally be provided between the protective hood and the housing.

Weitere Ausgestaltungen der Erfindung sind den weiteren Unteransprüchen zu entnehmen.Further refinements of the invention can be found in the further subclaims.

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

Es zeigt:

  • Fig. 1 eine Seitenansicht der erfindungsgemässen Leuchte, teilweise geschnitten,
  • Fig. 2 eine weitere, senkrecht zu der Seitenansicht gemäss Fig. 1 gesehene Seitenansicht der Leuchte nach Fig. 1,
  • Fig. 3 eine Aufsicht auf den Gehäuseboden,
  • Fig. 4 eine detailliertere Darstellung des Gehäuses im Bereich des Einschubes, geschnitten,
  • Fig. 5 eine Ansicht einer der Verriegelung der Schutzhaube am Gehäuse dienenden Ausnehmung,
  • Fig. 6 eine Schnittansicht der Verriegelung gemäss Schnittlinie VI-VI der Fig. 5.
It shows:
  • 1 is a side view of the lamp according to the invention, partly in section,
  • 2 shows a further side view of the luminaire according to FIG. 1, seen perpendicular to the side view according to FIG. 1,
  • 3 is a plan view of the housing bottom,
  • 4 shows a more detailed illustration of the housing in the region of the insert, sectioned,
  • 5 is a view of a recess serving to lock the protective hood on the housing,
  • 6 is a sectional view of the lock according to section line VI-VI of FIG. 5th

Die Leuchte gemäss Fig. 1 und 2 besitzt ein Gehäuse 10, an dem eine Schutzhaube 11 aus klar durchsichtigem Material angebracht ist. Im Bereich des Gehäusebodens sind beidseitig Flansche 12 und 13 vorgesehen, mittels denen das Gehäuse an einer Wand oder einer Decke festgeschraubt werden kann. An den Seitenflächen des Gehäuses 10 sind Ansatzstücke 14 und 15 vorgesehen, an denen ein angenähert U-förmiger Bügel 16 angelenkt ist, mit dem die Leuchte an einem Mast befestigt werden kann. Am Boden des Gehäuses 10 befinden sich weitere Anschlusselemente 17, an denen ein Rohrstück 18 verstellbar angebracht ist, mit dem die Leuchte an einer Wand oder einer Decke befestigt werden kann. Der freie Rand 19 des Gehäuses 10 umfasst den freien Rand 20 der Schutzhaube 11 und zwar unter Zwischenfügung einer Dichtung (siehe Fig. 6).1 and 2 has a housing 10 to which a protective hood 11 made of a clear material is attached. In the area of the housing base, flanges 12 and 13 are provided on both sides, by means of which the housing can be screwed onto a wall or a ceiling. On the side surfaces of the housing 10, extensions 14 and 15 are provided, on which an approximately U-shaped bracket 16 is articulated, with which the lamp can be attached to a mast. At the bottom of the housing 10 there are further connection elements 17, on which a piece of pipe 18 is adjustably attached, with which the lamp can be attached to a wall or a ceiling. The free edge 19 of the housing 10 comprises the free edge 20 of the protective hood 11, with the interposition of a seal (see FIG. 6).

An der Innenfläche des Gehäuses 10 im Bereich des Randes 19 ist eine Stufung 21 vorgesehen, an die ein Montageblech (Tragplatte) 22 angesetzt und daran in in Fig. 1 nicht näher dargestellter Weise befestigt ist (s. Fig. 6). Auf der dem Gehäuse zugewandten Seite des Montagebleches ist ein Klemmelement 23 befestigt, das in Form einer Lüsterklemme ausgebildet sein kann und zum elektrischen Anschluss bzw. zur elektrischen Leitungsführung von einem Aussen-Anschluss (nicht gezeigt) bis zu einer Lampe 24 dient. Auf der vom Gehäuse 10 abgewandten Seite der Tragplatte 22 ist eine Fassung 25 für die Lampe 24 befestigt, in die das Gewinde der Lampe 24 eingeschraubt werden kann. Die Fassung 25 trägt einen Innenreflektor 26 und auf der Seite der Tragplatte 22, auf der die Fassung befestigt ist, ist ein Mikroschalter 27 angebracht, der mit dem freien Rand 20 der Schutzhaube 11 zusammenwirkt und beim Abnehmen der Schutzhaube 11 betätigt wird.A step 21 is provided on the inner surface of the housing 10 in the region of the edge 19, to which a mounting plate (support plate) 22 is attached and fastened to it in a manner not shown in FIG. 1 (see FIG. 6). On the side of the mounting plate facing the housing, a clamping element 23 is fastened, which can be designed in the form of a luster terminal and serves for the electrical connection or for the electrical wiring from an external connection (not shown) to a lamp 24. On the side of the support plate 22 facing away from the housing 10, a holder 25 for the lamp 24 is fastened, into which the thread of the lamp 24 can be screwed. The socket 25 carries an internal reflector 26 and on the side of the support plate 22 on which the socket is attached, a microswitch 27 is attached, which cooperates with the free edge 20 of the protective hood 11 and is actuated when the protective hood 11 is removed.

Die Schutzhaube 11, die in Form eines Topfes ausgebildet ist, ist an der Innenfläche der Topfwandung 29 mit Stufenlinsen 30 zur Lichtführung und mit innenliegenden Längsrillen 31 zur Blendungsbegrenzung ausgelegt, wobei die Aussenfläche glatt ist. Auf der Tragplatte 22 ist unmittelbar der Fassung gegenüberliegend ein Vorschaltgerät 32 für die Lampe 24 befestigt.The protective hood 11, which is designed in the form of a pot, is designed on the inner surface of the pot wall 29 with stepped lenses 30 for guiding light and with internal longitudinal grooves 31 for limiting glare, the outer surface being smooth. A ballast 32 for the lamp 24 is fastened on the support plate 22 directly opposite the socket.

An der Aussenfläche des Gehäuses 10 im Bereich seines Randes 19 sind zwei Schutzkorbhälften 33 und 34 schwenkbar angebracht; die Schutzkorbhälfte 33 ist dabei nur teilweise und die Schutzkorbhälfte 34 vollkommen abgeschwenkt gezeichnet. In der Fig. 2 sind beide Schutzkorbhälften zusammengeklappt gezeichnet. Eine nähere Beschreibung der Schutzkorbhälften 33 und 34 erübrigt sich insoweit, als Aufbau und Zweck derartiger Schutzkorbhälften bekannt sind. Zur schwenkbaren Halterung ist an der Aussenfläche des Gehäuserandes 19 je eine Aufnahmevorrichtung 35 für jede Schutzkorbhälfte 33, 34 angebracht, die eine nicht näher dargestellte Ausnehmung aufweisen, in die an jedem Schutzkorb angeformte Haken 36 gelenkartig eingreifen. Zusätzlich kann noch ein Aussenschirm 37 vorgesehen sein, dessen Einbau aus der Fig. 6 näher hervorgeht.On the outer surface of the housing 10 in the region of its edge 19, two protective cage halves 33 and 34 are pivotably attached; the protective cage half 33 is only partially drawn and the protective cage half 34 is shown completely pivoted away. In Fig. 2 both protective cage halves are drawn folded. A more detailed description of the protective cage halves 33 and 34 is not necessary insofar as the structure and purpose of such protective cage halves are known. For the pivotable mounting, a receptacle 35 for each protective cage half 33, 34 is attached to the outer surface of the housing edge 19, which has a recess, not shown, into which hooks 36 formed on each protective cage engage in an articulated manner. In addition, an outer screen 37 can also be provided, the installation of which can be seen in more detail in FIG. 6.

Die Aussenfläche des Gehäuses 10 ist mit Rippen 38 versehen, die am Umfang des Gehäuses - in Längsrichtung verlaufend - gleichmässig angeordnet bzw. verteilt sind. Dadurch werden Oberflächen gebildet, die eine solche statische Aufladung, die zu einer zündfähigen Entladung führen könnte, nicht gestatten; die einzelnen Oberflächenbereiche sind nicht grösser als 100 cm2.The outer surface of the housing 10 is provided with ribs 38 which are arranged or distributed uniformly on the circumference of the housing - running in the longitudinal direction. As a result, surfaces are formed which do not allow such a static charge, which could lead to an ignitable discharge; the individual surface areas are not larger than 100 cm 2 .

Das Gehäuse 10 besitzt an der Seitenwand eine kreisförmige Ausnehmung bzw. Öffnung 40, in die ein Einschub 41 eingeführt werden kann, auf dem Klemmbausteine 42 befestigt sind. An dem Einschub 41 ist ein Querteil 43 angeformt, das in seinen Abmessungen der Öffnung 40 entspricht und somit als Deckel für diese Öffnung dient. Die Aussenfläche des Querteiles 43 besitzt in gleicher Weise die Rillen bzw. Rippen 38, was in der Fig. 2 durch die geschlängelte Linie angedeutet ist. Das kreisrunde, zylinderartige Querteil 43 besitzt einen flanschartigen Randbord 44, an den sich nach innen hin ein zylinderförmiger Ansatz 45 anschliesst, der eine Nut 46 zur Aufnahme einer Dichtung 47 aufweist. Zusammen mit der Begrenzungsfläche 48 für die Öffnung bildet die Abdichtung 46/47 eine sogenannte schwadendichte Abdichtung für das Innere des Gehäuses.The housing 10 has a circular recess or opening 40 on the side wall, into which an insert 41 can be inserted, on which the clamping modules 42 are fastened. A transverse part 43 is formed on the insert 41, the dimensions of which correspond to the opening 40 and thus serve as a cover for this opening. The outer surface of the cross member 43 has in the same way the grooves or ribs 38, which is indicated in Fig. 2 by the serpentine line. The circular, cylinder-like cross member 43 has a flange-like rim 44, which is adjoined on the inside by a cylindrical extension 45, which has a groove 46 for receiving a seal 47. Together with the boundary surface 48 for the opening, the seal 46/47 forms a so-called vapor-tight seal for the interior of the housing.

Im Inneren des Gehäuses sind Schottwände 49 und 50 vorgesehen; die Schottwand 49 begrenzt teilweise zusammen mit der Schottwand 50 den Raum 51, in den der Einschub 41 eingefügt wird; die beiden Schottwände 49 und 50 umgrenzen gemeinsam einen Schottungsraum 52, in dem ein Zündpulser 53 und ein Kondensator 54 für die Versorgung bzw. Zündung der Lampe 24 vorgesehen sind. Man erkennt aus Fig. 2, dass die Schottwände 49 bzw. 50 in dem Bereich, in dem sie den Raum 52 umgrenzen, den äusseren Umfangsformen von Zündpulser 53 und Kondensator 54 angepasst sind.Bulkheads 49 and 50 are provided inside the housing; the bulkhead 49, together with the bulkhead 50, partially delimits the space 51 into which the insert 41 is inserted; the two bulkhead walls 49 and 50 together delimit a partitioning space 52 in which an ignition pulse 53 and a capacitor 54 are provided for the supply or ignition of the lamp 24. It can be seen from FIG. 2 that the bulkheads 49 and 50 in the area in which they delimit the space 52 are adapted to the outer circumferential shapes of the ignition pulse 53 and the capacitor 54.

Die Zuführung der elektrischen Leitungen erfolgt über die Anschlusselemente bzw. Ansatzstücke 14 bzw. 15, die Einführungsöffnungen 55 für die elektrischen Zuführungsleitungen (nicht gezeigt) begrenzen.The electrical lines are supplied via the connection elements or extension pieces 14 and 15, which delimit insertion openings 55 for the electrical supply lines (not shown).

Da die Schutzhaube aus Kunststoff besteht, können sich auf ihr statische Aufladungen bilden. An ihrem Umfang sind längsverlaufende Stege 56 vorgesehen (in Fig. 1 ist nur ein Steg zu sehen), die die Oberfläche der Schutzhaube 11 in Abschnitte unterteilen, die eine statische Aufladung zulassen, die unter derjenigen Aufladung liegt, die zündfähige Entladungen erzeugen könnte.Since the protective hood is made of plastic, static charges can form on it. On its circumference there are longitudinal webs 56 (only one web can be seen in FIG. 1) which divide the surface of the protective hood 11 into sections which allow a static charge which is lower than that which could produce ignitable discharges.

An dem Querteil 43 befindet sich ein Handgriff 57 und eine Befestigungsschraube 58 zur Befestigung des Querteils.On the cross part 43 there is a handle 57 and a fastening screw 58 for fastening the cross part.

Die Darstellung in den Fig. 1 bis 3 ist mehr schematisch, wogegen die in den Fig. 4 und ff. dargestellten Ausführungsformen die einzelnen Details deutlicher heraustreten lassen. Man erkennt in der Fig. 4, dass die Schottwand 49 zusammen mit der Schottwand 50 und dem Gehäuse 10 ein einziges Teil bildet, also einstückig damit ausgeführt ist, wogegen der den Raum 52 abteilende Bereich der Schottwand 49 ein eigenes Teilelement darstellt, das mit dem den Raum 51 abteilenden Bereich der Schottwand 49 mittels einer Schraubenverbindung 59 fest verbunden ist. Der getrennt von der Schottwand 49 ausgebildete Schottwandbereich besitzt die Bezugsziffer 60; dieser Bereich ist exakt der Aussenform des Zündpulser 53 bzw. dem Kondensator 54 angepasst, wobei zusätzlich in der Schottwand 60 Ausnehmungen 61 bzw. 62 vorgesehen sind, die die Form von Schlitzen aufweisen und durch die hindurch Haltebänder 63 und 64 für den Zündpulser 53 bzw. den Kondensator 54 hindurchgefädelt sind.The representation in FIGS. 1 to 3 is more schematic, whereas the embodiments shown in FIGS. 4 and ff. Allow the individual details to emerge more clearly. It can be seen in FIG. 4 that the bulkhead 49 forms a single part together with the bulkhead 50 and the housing 10, that is to say it is made in one piece with it, whereas the area of the bulkhead 49 that divides the space 52 represents a separate sub-element that connects with the the area 51 of the bulkhead partitioning the space 51 is firmly connected by means of a screw connection 59. The bulkhead area formed separately from the bulkhead 49 has the reference number 60; this area is exactly adapted to the outer shape of the ignition pulse 53 or the capacitor 54, with recesses 61 and 62 being provided in the bulkhead 60, which have the shape of slots and through which holding straps 63 and 64 for the ignition pulse 53 and are threaded through the capacitor 54.

Die Fig. 7 zeigt eine Schnittansicht gemäss Schnittlinie VII-VII. Man erkennt den Raum 52, in dem der Kondensator 54 angeordnet ist. Dieser Raum 52 ist von dem Aufnahmeraum 51 für den Einschub 41 mittels der Schottwand 50 getrennt. Der Einschub 41 ist an in dem Raum 51 befindlichen Schienen 66 und 67 geführt, wobei die Schienen 66 und 67 Nuten 68 und 69 aufweisen, in die am Einschub 41 angeformte Federn (Leisten) 70 und 71 eingreifen und in diesen gleiten. Die freien Enden der Schienen 68 und 69 besitzen nach innen weisende Anschlagnasen 72, 73, die den Einschub 41 teilweise übergreifen. Am Einschub 41 sind hochstehende Anschlagnocken 90 und 91 vorzusehen, die mit den Anschlagnasen 72, 73 zusammenwirken, wodurch ein Herausziehen des Einschubes 41 verhindert, zumindest aber behindert wird. Das Querteil 43 ist gemäss dem Umfang des Gehäuses gebogen, wobei das Randbord 44 gegen den äusseren Rand der Öffnung 40 zum Anliegen kommt. Das Querteil 43 wird mittels der Befestigungsschraubenverbindung 58 am Gehäuse fixiert.Fig. 7 shows a sectional view along section line VII-VII. The space 52 in which the capacitor 54 is arranged can be seen. This space 52 is separated from the receiving space 51 for the insert 41 by means of the bulkhead 50. The insert 41 is guided on rails 66 and 67 located in the space 51, the rails 66 and 67 having grooves 68 and 69, into which springs (strips) 70 and 71 formed on the insert 41 engage and slide therein. The free ends of the rails 68 and 69 have inward-facing stop lugs 72, 73 which partially overlap the insert 41. On the insert 41, upstanding stop cams 90 and 91 are to be provided which interact with the stop lugs 72, 73, as a result of which the insert 41 is prevented from being pulled out, but at least is hindered. The cross member 43 is bent according to the circumference of the housing, the rim 44 coming to bear against the outer edge of the opening 40. The cross member 43 is fixed to the housing by means of the fastening screw connection 58.

Die Fig. 7 zeigt den Gehäuseumfang mit den Rippen 38, die nicht wie in Fig. 3 schematisch dargestellt eine Schlängel-Form, sondern tatsächlich eine eckige Zick-Zack-Form besitzen.FIG. 7 shows the housing circumference with the ribs 38, which do not have a snake shape as shown schematically in FIG. 3, but actually have a square zigzag shape.

Es sei nun bezug genommen auf die Fig. 5 und 6.Reference is now made to FIGS. 5 and 6.

Man erkennt in der Fig. 6 den Rand 19 des Gehäuses 10 und im Inneren die Stufung 21, auf der die Tragplatte 22 aufliegt und darauf mit einer nur angedeuteten Schrauben-Verbindung 22a befestigt ist. Der Randbereich 19 umfasst den Randbereich 20 der Schutzhaube 11. Die Schutzhaube besitzt zwei nebeneinanderliegende umlaufende Nuten 74 und 74a, die parallel zueinanderliegen, wobei in der Nut 74 eine Dichtung 75 (siehe auch Fig. 1) eingelegt ist. Die Schutzhaube 11 besitzt zwei diametral gegenüberliegende, radial nach aussen vorspringende Zapfen 76 (wenn vier Zapfen vorhanden sind, sind diese um 90° am Umfang versetzt angeordnet). Die Länge der Zapfen 76 ist so gewählt, dass der Abstand der freien Zapfenflächen 77 von der Mittelachse der Schutzhaube 11 wenigstens gleichgross ist wie der Aussendurchmesser des Randes 19. Der Rand 19 besitzt, wie aus der Fig. 5 ersichtlich ist, hakenförmige Ausnehmungen 78, die einen in axialer Richtung des Gehäuses 10 verlaufenden Bereich 79 und einen daran anschliessenden, 90° dazu abgewinkelten, in Umfangsrichtung verlaufenden Bereich 80 aufweisen. Ihre Breite ist dem Durchmesser der Zapfen 76 angepasst. Der Rand 19 besitzt im Bereich 80 eine kreisförmige Erweiterung 85, in die ein Vorsprung 82 an einer Verriegelungsbuchse 81 eingesetzt ist, die mittels am Vorsprung 82 angeformter Nasen 86 in der Erweiterung 85 gehalten ist. Die Verriegelungsbuchse 81 besitzt einen flanschartigen Kragen 87, der eine radial verlaufende axiale Vertiefung 88 aufweist. Auf der äusseren Fläche des Randes 19 sind um 90° versetzt zwei zur Erweiterung 85 radial verlaufende Rippen 89 vorgesehen, die der Vertiefung 88 angepasst sind, so dass die Buchse 81 in zwei Stellungen festrastbar ist, in denen die Rippen 89 in die Vertiefungen 88 einrasten. Die Buchse 81 besitzt im Bereich des Vorsprungs einen dem Zapfen 76 und der Ausnehmung 78 angepassten Schlitz bei 82a (nicht näher gezeichnet), so dass der Zapfen 76 bei eingesetzter Buchse je nach deren Stellung in den Bereich 80 ein- und ausgefahren werden kann oder darin festgehalten wird. Zur Verbindung von Schutzhaube 11 und Gehäuse 10 wird die Schutzhaube mit ihren Zapfen 76 in die Ausnehmungen 78 eingefügt und zwar zunächst im Bereich 79 in Richtung der Mittelachse von Schutzhaube und Gehäuse und im Bereich 80 relativ zu dem Gehäuse verdreht, bis die Zapfen 76 ans Ende des Bereiches 80 anschlagen. Dabei gelangen die Zapfen 76 auch in das durch den Vorsprung 82 begrenzte zylindrische Sackloch 92. Zur Fixierung der Zapfen und damit zur Fixierung der Schutzhaube 11 gegenüber dem Gehäuse 10 werden die Verriegelungsbuchsen 81 mittels eines Werkzeuges mittels eines Schlitzes 83 verdreht, wodurch die Zapfen von dem Vorsprung umschlossen werden und somit eine unverschiebliche Festlegung der Zapfen 76 und der Schutzhaube 11 erfolgt.6 shows the edge 19 of the housing 10 and inside the step 21 on which the support plate 22 rests and is fastened thereon with a screw connection 22a, which is only indicated. The edge area 19 comprises the edge area 20 of the protective hood 11. The protective hood has two adjacent circumferential grooves 74 and 74a, which are parallel to one another, a seal 75 (see also FIG. 1) being inserted in the groove 74. The protective hood 11 has two diametrically opposed, radially outwardly projecting pins 76 (if there are four pins, these are arranged offset by 90 ° on the circumference). The length of the pins 76 is selected such that the distance of the free pin surfaces 77 from the central axis of the protective hood 11 is at least as large as the outer diameter of the rim 19. The rim 19 has hook-shaped recesses 78, as can be seen in FIG. which have an area 79 running in the axial direction of the housing 10 and an adjoining area 80 which is angled at 90 ° thereto and extends in the circumferential direction. Their width is adapted to the diameter of the pin 76. The edge 19 has a circular extension 85 in the area 80, into which a projection 82 is inserted on a locking bush 81 which is held in the extension 85 by means of lugs 86 formed on the projection 82. The locking bushing 81 has a flange-like collar 87 which has a radial axial depression 88. On the outer surface of the edge 19, two ribs 89 extending radially to the extension 85 are provided, offset by 90 °, which are adapted to the recess 88, so that the bushing 81 can be locked in two positions, in which the ribs 89 snap into the recesses 88 . In the area of the projection, the bushing 81 has a slot at 82a (not shown in more detail) adapted to the pin 76 and the recess 78, so that the pin 76 can be moved in and out of the area 80 or in it depending on its position, when the bushing is inserted is held. To connect the protective hood 11 and the housing 10, the protective hood with its pin 76 is inserted into the recesses 78, first in the region 79 in the direction of the central axis of the protective hood and the housing and in the area 80 rotated relative to the housing until the pin 76 comes to the end of area 80. The pins 76 also get into the cylindrical blind hole 92 delimited by the projection 82. To fix the pins and thus to fix the protective hood 11 relative to the housing 10, the locking bushings 81 are rotated by means of a tool by means of a slot 83, whereby the pins are removed from the Protrusion are enclosed and thus an immovable fixing of the pin 76 and the protective hood 11 takes place.

Gleichzeitig mit der Fixierung der Schutzhaube 11 über die Zapfen 76 und die Verriegelungsbuchse 81 wird auch der Schirm 37 fixiert. Dieser besitzt im Bereich der Zapfen 76 Bohrungen 84, die über die Zapfen 76 geschoben werden, bevor die Schutzhaube 11 an das Gehäuse angefügt wird.The screen 37 is also fixed simultaneously with the fixing of the protective hood 11 via the pins 76 and the locking bushing 81. This has in the region of the pins 76 bores 84 which are pushed over the pins 76 before the protective hood 11 is attached to the housing.

Zwecks Erreichung einer Unverlierbarkeit der Schutzhaube bezogen auf das Gehäuse ist ein Verbindungselement 93 vorgesehen, das biegbar ist und einerseits am Gehäuse 10 und andererseits an der Schutzhaube auf nicht näher dargestellte Weise befestigt ist.In order to ensure that the protective hood cannot be lost in relation to the housing, a connecting element 93 is provided which is bendable and on the one hand on the housing 10 and on the other hand on the Protective hood is attached in a manner not shown.

Als Lichtquellen bzw. Lampen können folgende Lampen verwendet werden:

  • NAV (Hochdruck-Natriumlampen), HQI (Halogenlampen), HQL (Quecksilberdampflampen), Kompaktleuchtstofflampen (PL, SL etc.), Halogen-Glühlampen bzw. Glühlampen und andere mehr. Die Leuchte kann in explosibler Atmosphäre oder auch als Industrieleuchte bei erschwerten Einsatzbedingungen mit hoher Chemikalienbeständigkeit, hoher Festigkeit und Beständigkeit gegen hohe Umgebungstemperaturen ausgebildet bzw. eingesetzt werden.
The following lamps can be used as light sources or lamps:
  • NAV (high pressure sodium lamps), HQI (halogen lamps), HQL (mercury vapor lamps), compact fluorescent lamps (PL, SL etc.), halogen incandescent or incandescent lamps and others. The luminaire can be designed or used in an explosive atmosphere or as an industrial luminaire under difficult operating conditions with high chemical resistance, high strength and resistance to high ambient temperatures.

Claims (16)

1. Light with a housing (10) accommodating electric components (23, 32, 53, 54), on which housing a support plate (22) for the holding of a reflector (26) and a lamp (24) is fixed, and with a protective shroud (11) of clearly transparent material for the covering of lamp and reflector, which protective shroud is detachably connected to the housing and has a light-conductive profiling, the housing being detachably connected to the protective shroud, characterized in that the housing (10) is made of plastic and is provided with so many ribs (38) on its outer surface, for the subdivision of the same that sections are formed, the area dimensions of which prevent an electrostatic charge leading to an ignitable discharge.
2. Light according to Claim 1, characterized in that the plastic is a fibre-reinforced or unreinforced thermo-plastic or thermoset material.
3. Light according to Claim 1 or 2, characterized in that the housing (10) is extended step-shaped in diameter in its region (19) open towards the protective shroud and in that the extended region embraces the edge region of the protective shroud (11) and on the other hand the step shoulder carries the support plate (22) retaining the reflector (26) and the lamp (24).
4. Light according to one of Claims 1 to 3, characterized in that means for the adjustable mounting of the housing on a wall, ceiling or a pole or for the adjustable attachment of a handle are provided on the end-side of the housing (10).
5. Light according to one of the preceding claims, characterized in that the ribs (38) run in longitudinal direction of the housing.
6. Light, in particular according to one of the preceding claims, characterized in that the housing (10) has on its side wall an opening (40), through which a slide-in unit (41) with components (42) fixed thereto can be pushed into the housing.
7. Light according to Claim 6, characterized in that a guide track (66, 68; 67, 69) is provided in the housing, which guide track guides the slide-in unit (41) and to which the slide-in unit is secured to prevent it dropping out.
8. Light according to Claim 6 or 7, characterized in that a cross part (43) corresponding to the housing surface, are (sic) integrally attached to the slide-in unit (41) and its dimensions correspond to the opening (40) in such a way that the opening can be closed by the cross part (43) serving as a cover.
9. Light, in particular according to one of the preceding claims, characterized in that the interior of the housing is subdivided by at least one bulkhead partition (49, 50) into at least two compartments (51), of which one compartment (51) delimits the space receiving the slide-in unit (41).
10. Light according to Claim 9, characterized in that a further bulkhead partition (50) is provided, which with the bulkhead partition (49) a further compartment (52) is provided (sic) for the insertion of electric components (ignition pulsator and capacitor, 53, 54) serving for the ignition and operation of the lamp.
11. Light, in particular according to one of the preceding claims, characterized in that the protective shroud (11) is connected to the housing (10) by means of a bayonet closure.
12. Light according to Claim 11, characterized in that at least two hook-shaped clearances (78), starting from the edge of the housing (10) and distributed evenly around the periphery, are provided, which clearances have one region (79) running in axial direction and one region (80) running in circumferential direction, and in that pins (76), corresponding to the number of clearances (78) are provided on the outside of the protective shroud (11), which pins can be inserted into the clearances (78).
13. Light according to Claim 12, characterized in that the protective shroud (11) is locked or held fast on the housing (10) by means of at least one fixing bushes (sic) penetrating the housing wall and embracing one of the pins (76).
14. Light according to 1 of the preceding claims, characterized in that additional means for the captive retention of the protective shroud (11) are provided on the housing.
15. Light according to Claim 14, characterized in that the means are formed by a flexible strap (85), which is fixed on the one hand to the protective shroud (11) and on the other hand to the housing (10).
16. Light according to Claim 14, characterized in that a rod is coupled to the protective shroud pivotally and about an axis running tangentially to the protective shroud and transversely to the central axis of the protective shroud, and is attached to the housing displaceably in axial direction.
EP85103071A 1984-04-03 1985-03-16 Light fixture Expired EP0159527B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85103071T ATE32255T1 (en) 1984-04-03 1985-03-16 LAMP.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19843412395 DE3412395A1 (en) 1984-04-03 1984-04-03 LAMP
DE3412395 1984-04-03

Publications (2)

Publication Number Publication Date
EP0159527A1 EP0159527A1 (en) 1985-10-30
EP0159527B1 true EP0159527B1 (en) 1988-01-27

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EP (1) EP0159527B1 (en)
AT (1) ATE32255T1 (en)
DE (2) DE3412395A1 (en)
ES (1) ES285797Y (en)

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Title
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Also Published As

Publication number Publication date
ES285797Y (en) 1986-10-16
DE3561522D1 (en) 1988-03-03
ATE32255T1 (en) 1988-02-15
EP0159527A1 (en) 1985-10-30
ES285797U (en) 1986-03-01
DE3412395A1 (en) 1985-10-10

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