EP0017965B1 - Light frame with pivoting and removable hinged translucent cover - Google Patents

Light frame with pivoting and removable hinged translucent cover Download PDF

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Publication number
EP0017965B1
EP0017965B1 EP80102027A EP80102027A EP0017965B1 EP 0017965 B1 EP0017965 B1 EP 0017965B1 EP 80102027 A EP80102027 A EP 80102027A EP 80102027 A EP80102027 A EP 80102027A EP 0017965 B1 EP0017965 B1 EP 0017965B1
Authority
EP
European Patent Office
Prior art keywords
longitudinal
lamp frame
parts
cover
supporting
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
EP80102027A
Other languages
German (de)
French (fr)
Other versions
EP0017965A1 (en
Inventor
Tor-Lennart Karlsson
Anders Svensson
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.)
Siemens AG
Original Assignee
Siemens AG
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
Priority claimed from DE19792915511 external-priority patent/DE2915511A1/en
Priority claimed from DE19792918939 external-priority patent/DE2918939A1/en
Application filed by Siemens AG filed Critical Siemens AG
Priority to AT80102027T priority Critical patent/ATE1455T1/en
Publication of EP0017965A1 publication Critical patent/EP0017965A1/en
Application granted granted Critical
Publication of EP0017965B1 publication Critical patent/EP0017965B1/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
    • 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
    • F21V17/102—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 using gravity or suction

Definitions

  • the invention relates to a rectangular lamp frame according to the preamble of claim 1.
  • Such a luminaire frame is known from DE-C-2619434 and is characterized by a particularly simple construction: the longitudinal sides of the cover and luminaire frame need only have an L-shaped profile in cross section.
  • the disadvantage here is the fact that the cover is not secured against unhooking when pivoting; unintentional unhooking, for example by throwing balls, is also possible since no vertical stops limit the vertical scope of the cover.
  • the invention is therefore based on the object to design a rectangular luminaire frame of the aforementioned type with simple means so that the cover can only be removed from the luminaire frame in a defined narrow angle range, but is otherwise secured against falling.
  • the cross and vertical stops are thus integrated in plastic end caps of a lamp housing.
  • the lamp housing consists of a channel-shaped housing part 100 made of sheet metal, which is closed on each end by a cap 10 made of plastic, the ends of the housing part 100 being overlapped by longitudinal edges 120 of the cap running parallel to it.
  • Each cap 10 has transverse stops 121, vertical stops 122 and longitudinal stops 123 formed on its inside.
  • the luminaire frame surrounding the light exit opening 200 is formed by end parts 12 of each cap 10 and by L-shaped supporting edges 11 of the housing part 100, the free edge limb 111 being directed vertically upward.
  • the cover 2 is a grid, the transverse lamellae 23 of which extend between two longitudinal beams 20, each with a horizontal cross leg 2012 and an adjoining, downwardly directed support leg 2011, which sits behind the edge leg 111 of the supporting edge 11 of the housing with little play.
  • the longitudinal edges 20 each have a protrusion 201 on the end face, which projects beyond the last transverse lamella 23.
  • the length L of the support leg 2011 is slightly smaller than the distance D between the edge leg 111 and the vertical stop 122, so that the grid pressed against this stop can be moved so far that its support leg 2011 can be swung out in front of the edge leg 111.
  • the length of the support leg L is so large that the grid 2 cannot unintentionally unhook itself in the event of an upward impact.
  • each transverse stop 121 from the associated edge limb 111 is matched to the shape and dimensions of the side members 20 so that, on the one hand, the projection of the side member onto the plane of the light exit opening 200 when the grid is pivoted away is greater than the distance A, so that the grid sure hangs;
  • this projection of the support piece in the pivoted-down position of the grid is identical to the length L of the support leg 2011.
  • the shape and dimensions of the side member are adjusted to the distance A so that the projection of the side members onto the plane of the light exit opening is equal to this distance A at a limit value of the opening angle of the grid 2 compared to the plane of the light exit opening: the grid is then in a small one Angular range above this limit can be unhooked, since here the support pieces fit through the openings delimited by transverse stops 121 and edge legs 11.
  • the limit value mentioned is preferably set so that it is only slightly larger than the angle of inclination of the grid with respect to the plane of the light outlet opening, at which the grid still hanging on the one side in the lamp frame with its other side already protrudes completely out of the plane of the light outlet opening .
  • the limit of 20 ° to 30 ° will be so small that the grid can only be detached by deliberate manipulation.
  • the length E (FIG. 2) of the protrusions 201 of the side members protruding beyond the last transverse lamella 23 is at least as long as the length F with which the transverse stops 121 protrude into the light exit opening 200: the transverse lamellae can then — as shown — largely within the luminaire housing lie.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Securing Globes, Refractors, Reflectors Or The Like (AREA)

Description

Die Erfindung betrifft einen rechteckigen Leuchtenrahmen gemäß Oberbegriff von Anspruch 1.The invention relates to a rectangular lamp frame according to the preamble of claim 1.

Ein solcher Leuchtenrahmen ist aus der DE-C-2619434 bekannt und zeichnet sich durch besonders einfachen Aufbau aus : Die Längsseiten von Abdeckung und Leuchtenrahmen brauchen jeweils nur im Querschnitt L-förmiges Profil zu haben. Nachteilig ist hierbei jedoch der Umstand, daß die Abdeckung bei einem Abschwenken nicht gegen Aushängen gesichert ist ; auch ist ein unbeabsichtigtes Aushängen, beispielsweise durch Ballwürfe, möglich, da keine Vertikalanschläge den vertikalen Spielraum der Abdeckung begrenzen.Such a luminaire frame is known from DE-C-2619434 and is characterized by a particularly simple construction: the longitudinal sides of the cover and luminaire frame need only have an L-shaped profile in cross section. The disadvantage here, however, is the fact that the cover is not secured against unhooking when pivoting; unintentional unhooking, for example by throwing balls, is also possible since no vertical stops limit the vertical scope of the cover.

Der Erfindung liegt daher die Aufgabe zugrunde, einen rechteckigen Leuchtenrahmen der eingangs genannten Bauweise mit einfachen Mitteln so zu gestalten, daß sich die Abdeckung nur in einem definierten engen Winkelbereich aus dem Leuchtenrahmen herausnehmen läßt, im übrigen aber gegen Herabfallen gesichert ist.The invention is therefore based on the object to design a rectangular luminaire frame of the aforementioned type with simple means so that the cover can only be removed from the luminaire frame in a defined narrow angle range, but is otherwise secured against falling.

Aus der US-A-2 644 556 ist zwar ein Leuchtenrahmen mit zugehöriger Abdeckung bekannt, bei dem die miteinander im Eingriff stehenden Längsränder so geformt sind, daß die Abdeckung nur in einer definierten Schräglage aushängbar und in voll abgeschwenkter Position gegen Aushängen gesichert ist. Dabei weisen jedoch die Längsränder von Abdeckung und Leuchtenrahmen U-förmiges Profil auf, durch das die Fertigung erschwert ist. Vor allem erfordert aber die bekannte Lösung einen erheblichen Materialaufwand, da sich die Vertikal- und Queranschläge über die gesamte Länge des Leuchtenrahmens erstrecken.From US-A-2 644 556 a luminaire frame with associated cover is known, in which the mutually engaging longitudinal edges are shaped such that the cover can only be removed in a defined inclined position and is secured in a fully pivoted position against unhooking. However, the longitudinal edges of the cover and luminaire frame have a U-shaped profile, which makes production difficult. Above all, however, the known solution requires a considerable amount of material, since the vertical and transverse stops extend over the entire length of the lamp frame.

Die erfindungsgemäße Lösung der genannten Aufgabe ist dagegen durch die im Anspruch 1 angegebenen Merkmale gekennzeichnet.The achievement of the stated object, however, is characterized by the features specified in claim 1.

Bei der Erfindung sind somit die Quer- und Vertikalanschläge in aus Kunststoff bestehende stirnseitige Kappen eines Leuchtengehäuses integriert.In the invention, the cross and vertical stops are thus integrated in plastic end caps of a lamp housing.

Ein Ausführungsbeispiel der Erfindung wird anhand der Figuren erläutert, die die stirnseitige Ausbildung eines Leuchtengehäuses in Ausschnitten zeigen, und zwar

  • Figur 1 einen Querschnitt entlang Linie I-I in Fig. und 3,
  • Figur 2 einen Längsschnitt entlang Linie 11-11 in Fig. 1 und 3 und
  • Figur 3 eine Draufsicht auf die Lichtaustrittsöffnung in Richtung des Pfeiles 111 in den Fig. 1 und 2.
An embodiment of the invention is explained with reference to the figures, which show the frontal design of a lamp housing in sections, namely
  • 1 shows a cross section along line II in FIGS. And 3,
  • 2 shows a longitudinal section along line 11-11 in FIGS. 1 and 3 and
  • 3 shows a plan view of the light exit opening in the direction of arrow 111 in FIGS. 1 and 2.

Das Leuchtengehäuse besteht aus einem rinnenförmigen Gehäuseteil 100 aus Blech, das auf jeder Stirnseite durch eine Kappe 10 aus Kunststoff abgeschlossen ist, wobei die Enden des Gehäuseteiles 100 durch parallel zu ihm verlaufende Längsränder 120 der Kappe übergriffen werden.The lamp housing consists of a channel-shaped housing part 100 made of sheet metal, which is closed on each end by a cap 10 made of plastic, the ends of the housing part 100 being overlapped by longitudinal edges 120 of the cap running parallel to it.

Jede Kappe 10 hat auf ihrer Innenseite Queranschläge 121, Vertikalanschläge 122 und Längsanschläge 123 angeformt.Each cap 10 has transverse stops 121, vertical stops 122 and longitudinal stops 123 formed on its inside.

Der die Lichtaustrittsöffnung 200 umschließende Leuchtenrahmen wird gebildet von Stirnteilen 12 jeder Kappe 10 und von L-förmig ausgebildeten Tragrändern 11 des Gehäuseteiles 100, wobei der freie Randschenkel 111 vertikal nach oben gerichtet ist.The luminaire frame surrounding the light exit opening 200 is formed by end parts 12 of each cap 10 and by L-shaped supporting edges 11 of the housing part 100, the free edge limb 111 being directed vertically upward.

Die Abdeckung 2 ist ein Raster, dessen Querlamellen 23 sich zwischen zwei Längsträgern 20 mit jeweils einem horizontalen Querschenkel 2012 und einem daran anschliessenden, nach unten gerichteten Tragschenkel 2011 erstrekken, der jeweils mit geringem Spiel hinter dem Randschenkel 111 des Tragrandes 11 des Gehäuses aufsitzt. Die Längsränder 20 haben stirnseitig je einen Überstand 201, der über die jeweils letzte Querlamelle 23 hinausragt.The cover 2 is a grid, the transverse lamellae 23 of which extend between two longitudinal beams 20, each with a horizontal cross leg 2012 and an adjoining, downwardly directed support leg 2011, which sits behind the edge leg 111 of the supporting edge 11 of the housing with little play. The longitudinal edges 20 each have a protrusion 201 on the end face, which projects beyond the last transverse lamella 23.

Die Länge L des Tragschenkels 2011 ist etwas kleiner als der Abstand D zwischen dem Randschenkel 111 und dem Vertikalanschlag 122, so daß sich das gegen diesen Anschlag gedrückte Raster soweit quer verschieben läßt, daß sein Tragschenkel 2011 vor dem Randschenkel 111 herausschwenkbar ist.The length L of the support leg 2011 is slightly smaller than the distance D between the edge leg 111 and the vertical stop 122, so that the grid pressed against this stop can be moved so far that its support leg 2011 can be swung out in front of the edge leg 111.

Die Länge des Tragschenkels L ist jedoch andererseits so groß zu bemessen, daß sich das Raster 2 bei einem nach oben gerichteten Stoß nicht unbeabsichtigt selbst aushängen kann.On the other hand, the length of the support leg L is so large that the grid 2 cannot unintentionally unhook itself in the event of an upward impact.

Der Abstand A jedes Queranschlages 121 von dem zugeordneten Randschenkel 111 ist auf die Form und die Abmessungen der Längsträger 20 so abgestimmt, daß einerseits die Projektion des Längsträgers auf die Ebene der Lichtaustrittsöffnung 200 bei abgeschwenktem Raster größer als der Abstand A ist, so daß das Raster sicher hängt ; im Ausführungsbeispiel ist diese Projektion des Tragstückes in der abgeschwenkten Position des Rasters identisch mit der Länge L des Tragschenkels 2011.The distance A of each transverse stop 121 from the associated edge limb 111 is matched to the shape and dimensions of the side members 20 so that, on the one hand, the projection of the side member onto the plane of the light exit opening 200 when the grid is pivoted away is greater than the distance A, so that the grid sure hangs; In the exemplary embodiment, this projection of the support piece in the pivoted-down position of the grid is identical to the length L of the support leg 2011.

Andererseits sind Form und Abmessungen des Längsträgers auf den Abstand A so abgestellt, daß die Projektion der Längsträger auf die Ebene der Lichtaustrittsöffnung bei einem Grenzwert des Öffnungswinkels des Rasters 2 gegenüber der Ebene der Lichtaustrittsöffnung gleich diesem Abstand A ist : Das Raster ist dann in einem kleinen Winkelbereich oberhalb dieses Grenzwertes aushängbar, da hier die Tragstücke durch die von Queranschlägen 121 und Randschenkeln 11 begrenzten Öffnungen passen. Der genannte Grenzwert wird vorzugsweise so gelegt, daß er nur geringfügig größer ist als der Neigungswinkel des Rasters gegenüber der Ebene der Lichtaustrittsöffnung, bei dem das auf der einen Seite noch in dem Leuchtenrahmen hängende Raster mit seiner anderen Seite bereits vollständig aus der Ebene der Lichtaustrittsöffnung herausragt. In der Praxis wird der Grenzwert mit 20° bis 30° so klein sein, daß sich das Raster nur durch eine gezielte Manipulation aushängen läßt.On the other hand, the shape and dimensions of the side member are adjusted to the distance A so that the projection of the side members onto the plane of the light exit opening is equal to this distance A at a limit value of the opening angle of the grid 2 compared to the plane of the light exit opening: the grid is then in a small one Angular range above this limit can be unhooked, since here the support pieces fit through the openings delimited by transverse stops 121 and edge legs 11. The limit value mentioned is preferably set so that it is only slightly larger than the angle of inclination of the grid with respect to the plane of the light outlet opening, at which the grid still hanging on the one side in the lamp frame with its other side already protrudes completely out of the plane of the light outlet opening . In practice, the limit of 20 ° to 30 ° will be so small that the grid can only be detached by deliberate manipulation.

Die Länge E (Fig. 2) der über die letzte Querlamelle 23 hinausragenden Überstände 201 der Längsträger ist mindestens so groß wie Länge F, mit der die Queranschläge 121 in die Lichtaustrittsöffnung 200 hineinragen : Die Querlamellen können dann - wie dargestellt - weitgehend innerhalb des Leuchtengehäuses liegen.The length E (FIG. 2) of the protrusions 201 of the side members protruding beyond the last transverse lamella 23 is at least as long as the length F with which the transverse stops 121 protrude into the light exit opening 200: the transverse lamellae can then — as shown — largely within the luminaire housing lie.

Claims (3)

1. A rectangular lamp frame having a light- transmissive cover (2) which is pivotably and removably supported in the frame, which at each of its long sides is provided with a longitudinal carrier (20) which is L-shaped in cross-section and has a downwardly-directed supporting side portion (2011) which extends at a distance from the longitudinal edge of the cover and is supported behind the upwardly-directed edge side (111) of a supporting edge portion (11), which is L-shaped in cross-section, of the longitudinal parts of the lamp frame, the other side of the supporting edge portion being outwardly-directed horizontally, characterised in that the end parts (12) of the lamp frame are plastics parts each of which has on its inner side a lateral stop (121) and a vertical stop (122) for each longitudinal carrier (20), which stops extend beyond the end members parts (12) into the light emergence opening (200) and overlap end projections (201) of the longitudinal carrier (20) in the longitudinal direction ; that the vertical stop (122) is spaced at such a distance (D) from the edge side (111) of the supporting edge portion (11) that the cover (2) together with its supporting side portion (2011) can just be raised above the edge side (111) ; and that the dimensions of the side portions (2011, 2012) of each longitudinal carrier (20) are such that their projection onto the plane of the light emergence opening (200) equals the distance (A) of the edge side (111) from the transverse stop (121) in the case of a limiting value of the opening angle of the cover (2) in relation to the lamp frame, and that the projection is larger than this distance in the case of a larger opening angle.
2. A lamp frame as claimed in Claim 1, characterised in that each end member (12) has a longitudinal stop (123) for at least one of the longitudinal carriers (20).
3. A lamp frame as claimed in Claim 1 or Claim 2, characterised in that the plastics parts are in the form of caps (12) having longitudinal edges (120) ; that the longitudinal parts of the lamp frame are formed by the supporting edge portion (11) of a channel-shaped part of the housing (100) made of sheet metal ; and that the longitudinal edges (120) of the cap (10) overlap the ends of the part of the housing (100).
EP80102027A 1979-04-17 1980-04-15 Light frame with pivoting and removable hinged translucent cover Expired EP0017965B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT80102027T ATE1455T1 (en) 1979-04-17 1980-04-15 LUMINAIRE FRAME WITH ADJUSTABLE AND REMOVABLE TRANSLUCENT COVER.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19792915511 DE2915511A1 (en) 1979-04-17 1979-04-17 Light fitting frame with removable, transparent coVer - has support elements, each with transverse and vertical stops permitting cover swivel and removal
DE2915511 1979-04-17
DE2918939 1979-05-10
DE19792918939 DE2918939A1 (en) 1979-05-10 1979-05-10 Light fitting frame with removable, transparent coVer - has support elements, each with transverse and vertical stops permitting cover swivel and removal

Publications (2)

Publication Number Publication Date
EP0017965A1 EP0017965A1 (en) 1980-10-29
EP0017965B1 true EP0017965B1 (en) 1982-08-11

Family

ID=25778770

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80102027A Expired EP0017965B1 (en) 1979-04-17 1980-04-15 Light frame with pivoting and removable hinged translucent cover

Country Status (2)

Country Link
EP (1) EP0017965B1 (en)
DE (1) DE3060745D1 (en)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2644556A (en) * 1949-04-15 1953-07-07 Joleco Corp Lighting fixture hinge construction

Also Published As

Publication number Publication date
DE3060745D1 (en) 1982-10-07
EP0017965A1 (en) 1980-10-29

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