EP0008004B1 - Appareil d'éclairage à réflecteur amovible - Google Patents

Appareil d'éclairage à réflecteur amovible Download PDF

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Publication number
EP0008004B1
EP0008004B1 EP79102353A EP79102353A EP0008004B1 EP 0008004 B1 EP0008004 B1 EP 0008004B1 EP 79102353 A EP79102353 A EP 79102353A EP 79102353 A EP79102353 A EP 79102353A EP 0008004 B1 EP0008004 B1 EP 0008004B1
Authority
EP
European Patent Office
Prior art keywords
housing
side mirrors
mirror
top mirror
insert
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
EP79102353A
Other languages
German (de)
English (en)
Other versions
EP0008004A1 (fr
Inventor
Johann Pöllmann
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
Application filed by Siemens AG filed Critical Siemens AG
Priority to AT79102353T priority Critical patent/ATE234T1/de
Publication of EP0008004A1 publication Critical patent/EP0008004A1/fr
Application granted granted Critical
Publication of EP0008004B1 publication Critical patent/EP0008004B1/fr
Expired legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • F21S8/04—Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures
    • 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
    • F21V17/16—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 by deformation of parts; Snap action mounting
    • F21V17/164—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 by deformation of parts; Snap action mounting the parts being subjected to bending, e.g. snap joints
    • 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 luminaire for a rod-shaped fluorescent lamp with a housing and a gutter-shaped mirror system arranged therein, which consists of a roof mirror attached above the lamp and two side mirrors, the side mirrors with cross blades connecting them forming an insert which is detachably held in the housing.
  • such a lamp known for example from DE-U 1971019, required a relatively high outlay for the construction and mounting of the mirror insert and of the roof mirror.
  • the use was generally given a high degree of inherent rigidity through the use of high-reaching transverse slats and profiled frames; four detachable connections were required for mounting in the housing.
  • the invention has for its object to reduce the design effort for a lamp of the type mentioned; in particular, the use of a mirror insert with less inherent rigidity should be possible.
  • the inventive solution to this problem is characterized in a lamp of the type mentioned by at least two fixed to the bottom of the housing, transverse to the longitudinal axis of the housing support for holding the roof mirror, each having two stop surfaces for the edge strips of the side mirror, by which the only at its front ends, the insert is guided centrally in the housing.
  • the invention manages with a mirror insert with very little inherent rigidity. It enables the use of very thin materials and no stiffening frames. It is sufficient to connect the two side mirrors to one another only by means of the transverse slats, which in turn need only be 1 1 4 to% of the height of the side mirrors; this in turn benefits the efficiency of the luminaire, since high cross slats lead to unnecessary multiple reflections.
  • the stop surfaces in the carrier and the edge strips of the side mirrors interacting therewith can run vertically or - as in the exemplary embodiment - horizontally. In any case, tilting of the mirror insert around the two front bearing points is avoided and proper alignment within the housing is guaranteed.
  • the front-side mounting of the mirror insert has the additional advantage that it can still be used if storage of the mirror insert on the long sides of the housing is no longer possible due to the height of the mirror insert being too great compared to the light exit opening.
  • the housing 1 which is rectangular in cross section (FIG. 1) and in longitudinal section (FIG. 2), has a flat bottom 11, flat end walls 12 and a light outlet opening;
  • a mirror insert 2 is arranged, which consists of two parabolically curved side mirrors 21 and V-shaped transverse slats 22 connecting them to one another.
  • the position of the lamp 7 is indicated by dashed lines in the figures.
  • the cross blades 22 do not extend higher than is necessary in view of a sufficient glare limitation; the section of the side mirrors extending above the transverse slats is accordingly more than twice as long as the height of the transverse slats. If a thin mirror material (0.2 mm) is used and there is no additional frame for the mirror insert 2 in the light exit opening, this results in a very low inherent rigidity of the mirror insert.
  • At least two supports 4 are therefore provided, which are fastened at a distance from one another on the bottom 11 of the housing 1.
  • These are plastic molded parts which have hook-shaped feet 45 on their rear side, which extend resiliently through recesses in the base 11, so that the supports can be attached by simply snapging them on.
  • These brackets 4, which run transversely to the longitudinal axis of the housing, each have at their two outer ends a horizontally running stop surface 41 against which an angled edge strip 211 of each side mirror 21 rests when the mirror insert 2 is inserted into the housing 1.
  • the dimensions are matched to one another such that when the edge strips 211 bear against the stop surfaces 41, the mirror insert 2 is aligned with respect to the light exit opening.
  • each closure 6 is therefore sufficient, which is attached centrally to the inside of each end wall 12 of the housing.
  • Each closure 6 consists of a spring arm 61 with a shoulder 611 (FIG. 2) on which the angled edge of the last, halved transverse lamella 221 is supported.
  • the closures 6 are thus practically completely covered by the halved transverse slats 221.
  • the spring arm 61 is pressed against the end wall 12, whereby the angled edge of the last lamella 221 is released.
  • the mirror insert 2 is tilted around the shoulder 611 of the closures 6 by prevents the carrier 4 with its stop surfaces 41.
  • the front mounting of the mirror insert 2 means a pivoting movement about a transverse axis of the mirror insert when removing it from the housing. Such a pivoting movement is still possible even with a very large height of the mirror insert and a narrow width of the light exit opening if the otherwise customary mounting of the mirror insert along a longitudinal edge of the housing can no longer be carried out.
  • the carriers 4 also serve to hold the roof mirror 3 and for this purpose have webs 43, 44 and support surfaces 42.
  • Support surfaces 42 and webs 43, 44 are adapted to the rocker-shaped contour of the roof mirror 3 such that, after being inserted under prestress, it rests on these webs on the one hand and with an edge strip 311 on the support surfaces 42 on the other.
  • the support surfaces 42 for the edge strips 311 of the roof mirror 3 are arranged opposite the stop surfaces 41 for the edge strips 211 of the side mirrors 21 such that a gap 5 remains free between the side mirrors 21 and the roof mirror 3; this makes it possible to use the luminaire in connection with a housing with at least one corresponding opening for exhaust air discharge, also as an exhaust air luminaire.
  • the side mirrors and the roof mirror can also be designed asymmetrically, in deviation from the example shown.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mirrors, Picture Frames, Photograph Stands, And Related Fastening Devices (AREA)
  • Securing Globes, Refractors, Reflectors Or The Like (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Claims (4)

1) Luminaire pour un tube fluorescent droit, du type comportant une enveloppe et un système à miroir en goulotte qui y est disposé et qui est constitué par un miroir en toit fixé dans l'enveloppe, au-dessus de la lampe, et par deux miroirs latéraux, ces derniers constituant, avec des lamelles transversales qui les relient, un réflecteur d'insertion détachable, supporté dans le boîtier, caractérisé par au moins deux supports (4) fixés au fond (11) de l'enveloppe (1), s'étendant transversalement à l'axe longitudinal de cette dernière et servant à supporter le miroir en toit, et dont chacun comporte deux surfaces de butée (41) pour les bandes latérales (211) des miroirs latéraux (21) à l'aide desquelles est guidé le réflecteur d'insertion (2) qui n'est fixé au milieu de l'enveloppe (1) que par seulement ses extrémités frontales.
2) Luminaire selon la revendication 1, caractérisé par le fait que le support (4) comporte des faces d'appui (42) pour les bandes latérales (311) du miroir en toit (3), disposées de telle manière par rapport aux surfaces de butée (41) pour les miroirs latéraux (21), qu'il subsiste une fente (5) entre les bords latéraux (311; 211) du miroir en toit et des miroirs latéraux (21).
3) Luminaire selon la revendication 2, caractérisé par le fait que le support (4) comporte des nervures (43, 44) par lesquelles est déterminé le contour du miroir en toit (3) qui porte avec une tension préalable, d'une part contre ces nervures (43, 44) et d'autre part contre les faces d'appui (42).
4) Luminaire selon l'une des revendications 1 à 3, caractérisé par le fait que le support (4) est un élément moulé en matière plastique qui est fixé par enclenchement de pieds élastiques en forme de crochets (45) dans des ouvertures ménagées dans le fond (11) de l'enveloppe (1 ).
EP79102353A 1978-08-02 1979-07-09 Appareil d'éclairage à réflecteur amovible Expired EP0008004B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT79102353T ATE234T1 (de) 1978-08-02 1979-07-09 Leuchte mit herausnehmbarem spiegeleinsatz.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2833894A DE2833894C2 (de) 1978-08-02 1978-08-02 Leuchte für eine stabförmige Leuchtstofflampe
DE2833894 1978-08-02

Publications (2)

Publication Number Publication Date
EP0008004A1 EP0008004A1 (fr) 1980-02-20
EP0008004B1 true EP0008004B1 (fr) 1981-09-16

Family

ID=6046034

Family Applications (1)

Application Number Title Priority Date Filing Date
EP79102353A Expired EP0008004B1 (fr) 1978-08-02 1979-07-09 Appareil d'éclairage à réflecteur amovible

Country Status (3)

Country Link
EP (1) EP0008004B1 (fr)
AT (1) ATE234T1 (fr)
DE (1) DE2833894C2 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3138567A1 (de) * 1981-09-28 1983-04-21 Siemens AG, 1000 Berlin und 8000 München Anordnung zur aufhellung der deckenumgebung einer nach unten strahlenden leuchte
DE8511215U1 (de) * 1985-04-16 1985-06-05 Siemens AG, 1000 Berlin und 8000 München Leuchte mit einem Rinnenspiegel
DE8800431U1 (fr) * 1988-01-15 1988-03-03 Siemens Ag, 1000 Berlin Und 8000 Muenchen, De
ATE115257T1 (de) * 1989-12-27 1994-12-15 Philips Nv Leuchte.
DE9010614U1 (fr) * 1990-07-14 1991-08-14 Zumtobel Ag, Dornbirn, At
GB2349684B (en) * 1996-08-02 2001-01-17 Nordson Corp Lamp assembly
DE29613948U1 (de) * 1996-08-12 1997-12-11 Zumtobel Licht Leuchte mit mindestens einer Lampe, einem Reflektor und einem Rasterreflektor
AU757875B2 (en) * 1998-09-17 2003-03-06 Koninklijke Philips Electronics N.V. Luminaire

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB914526A (en) * 1959-05-11 1963-01-02 William Alfred Trott Luminaires
CH373814A (fr) * 1961-04-14 1963-12-15 Rubeli Jean Installation d'éclairage
CH521550A (de) * 1971-01-20 1972-04-15 Novelectric Ag Gehäuseteil mit lösbar befestigtem elektrischem Einsatz
DE7540059U (de) * 1975-12-12 1976-05-26 Semperlux-Gmbh, 1000 Berlin Spiegelprofilleuchte, insbesondere fuer decken mit einem bestimmten deckenraster

Also Published As

Publication number Publication date
EP0008004A1 (fr) 1980-02-20
DE2833894B1 (de) 1979-11-08
DE2833894C2 (de) 1980-07-31
ATE234T1 (de) 1981-10-15

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