EP0826921A2 - Luminaire - Google Patents

Luminaire Download PDF

Info

Publication number
EP0826921A2
EP0826921A2 EP97202590A EP97202590A EP0826921A2 EP 0826921 A2 EP0826921 A2 EP 0826921A2 EP 97202590 A EP97202590 A EP 97202590A EP 97202590 A EP97202590 A EP 97202590A EP 0826921 A2 EP0826921 A2 EP 0826921A2
Authority
EP
European Patent Office
Prior art keywords
trunk
luminaire
base
batten
mounting opening
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.)
Granted
Application number
EP97202590A
Other languages
German (de)
English (en)
Other versions
EP0826921A3 (fr
EP0826921B1 (fr
Inventor
Hans Hermann Jämmrich
Wolfgang Henze
Bernd Stigrot
Hartmut Averbeck
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.)
Philips Intellectual Property and Standards GmbH
Koninklijke Philips NV
Original Assignee
Philips Corporate Intellectual Property GmbH
Philips Patentverwaltung GmbH
Koninklijke Philips Electronics NV
Philips Electronics NV
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 Philips Corporate Intellectual Property GmbH, Philips Patentverwaltung GmbH, Koninklijke Philips Electronics NV, Philips Electronics NV filed Critical Philips Corporate Intellectual Property GmbH
Priority to EP97202590A priority Critical patent/EP0826921B1/fr
Publication of EP0826921A2 publication Critical patent/EP0826921A2/fr
Publication of EP0826921A3 publication Critical patent/EP0826921A3/fr
Application granted granted Critical
Publication of EP0826921B1 publication Critical patent/EP0826921B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F21V15/00—Protecting lighting devices from damage
    • F21V15/01—Housings, e.g. material or assembling of housing parts
    • 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
    • F21V17/101—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 permanently, e.g. welding, gluing or riveting
    • 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
    • F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
    • F21V21/02—Wall, ceiling, or floor bases; Fixing pendants or arms to the bases
    • 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 comprising:
  • Such a luminaire is known from DE-A-962.358.
  • the folds in the side walls adjoin the base in the known luminaire.
  • a rigid bracket fastened to a suspension unit grips with close fit around the base and into the folds so as to form the coupling piece and renders it possible to suspend the luminaire from a ceiling. It is a disadvantage that the bracket must be pushed into place from an end face of the trunk over this trunk. This is especially a disadvantage if the trunk also requires a suspension point at a distance from its ends, for example when the trunk is long and, for example, when it can accommodate several battens.
  • a luminaire is known from GB-700.987 where the trunk is formed by an extruded profile with laterally projecting ridges.
  • a coupling piece by means of which the luminaire is fastened to a suspension unit is a flexible bracket whose legs grip around the ridges and are forced towards one another by means of a threaded bolt so as to lock the bracket.
  • the coupling piece can indeed be provided over the trunk transversely to the longitudinal direction thereof in the location where it is needed, but the threaded bolt cannot be provided and tightened until after this has been done. This makes for an inconvenient mounting procedure.
  • a luminaire is known from DE-U-7.429.477 where a bracket-type coupling piece grips entirely around a trunk which is square in cross-section.
  • the legs of the bracket must be spread by hand so as to introduce the trunk therein. This renders the suspension of the luminaire difficult.
  • the coupling piece is not locked, so that it may lose its grip on the luminaire in the case of a lateral impact.
  • this object is achieved in that said folds are present at a distance from the base.
  • the trunk is easily capable of cooperating with a coupling piece of a corresponding shape, for example having a U-shape in cross-section with diverging legs, with hooking elements at the free ends of these legs approaching one another.
  • a number of coupling pieces may be mounted in line, for example against a ceiling.
  • the trunk may then be pressed home therein laterally, with its base facing up.
  • the elasticity of the trunk and of the coupling piece are utilized here when the trunk has been brought between the legs of the coupling piece, which is easy on account of the mutually self-locating shapes of the trunk and the coupling piece.
  • a pressure exerted on the trunk causes the legs of the coupling piece to spread, while the side walls of the trunk approach one another. They spring back towards their original positions once the coupling piece has entered the folds.
  • the batten locks the coupling piece by stiffening the trunk.
  • the luminaire according to the invention renders it possible to manufacture the coupling piece from a material of comparatively low elasticity, for example galvanized steel instead of spring steel. It is also easy to remove the luminaire again by first removing the batten and by subsequently removing the trunk in that the side walls thereof are pressed towards one another.
  • the folds in the trunk are directed towards the base.
  • the coupling piece may then have hooking elements which are more strongly directed towards the base, and thus provide a more reliable coupling.
  • the elastic deformability of the trunk increases with an increasing distance to the base. It is accordingly favorable that the folds are present at a distance from the base, so that the trunk and the coupling piece come only into contact with one another at a distance from the base. Preferably, therefore, the folds lie closer to the mounting opening than to the base.
  • a coupling piece may be used for fastening the luminaire to a ceiling, but alternatively or also for fastening two trunks of luminaires in line with one another.
  • the edge strips each have an abutment zone which is substantially parallel to the base.
  • This zone may on the one hand serve, on its outer surface, as an abutment for the batten, and may on the other hand serve, on its inner surface, as a supporting surface for a coupling member connected to the batten.
  • the abutment zone has a free edge which is beaded outwards.
  • the beaded free edge may serve on the one hand as a guiding edge for the coupling member so that the latter can easily narrow itself when the batten is pressed into the trunk, and on the other hand as a guiding surface in the trunk along which the coupling member can widen itself on its way to the supporting surface on the inside of the abutment surface.
  • a sealing strip for example made of rubber, may be accommodated in the beaded free edge, which strips extends along the abutment zone and on which strip the side edges of the batten bear. A thickened edge of this sealing strip may be retained in the beaded free edge.
  • abutment zone is bounded opposite the beaded free edge by a guiding zone which extends along the relevant side wall.
  • the trunk then has a narrowing entrance to the mounting opening, which renders the batten self-locating with respect to the trunk when the former is being mounted in the trunk.
  • the luminaire has an elongate batten 1 with an outer surface 2 which is provided with means 3 for accommodating an electric lamp, holders for a tubular fluorescent lamp in the drawing.
  • the batten 1 has side edges 5 which are flanged towards an inner surface 4.
  • the luminaire also comprises an elongate trunk 10 made from bent metal plating, which has a base 11 with opposed thereto a mounting opening 12.
  • the trunk 10 has mutually opposed side walls 13 which start from the base 11 and which diverge in a direction towards the mounting opening 12, with edge strips 14 remote from the base 11.
  • the edge strips 14 are bent inwards into the trunk and towards one another inside this trunk.
  • the edge strips 14 bound the mounting opening 12 and form a seat in which the batten 1 is held by its matching side edges 5, see Fig. 2.
  • the trunk 10 has in each side wall 13 a respective fold 15 which is directed inwards for cooperating with a coupling piece 30.
  • the trunk 10 may have a length sufficient for accommodating several battens 1.
  • the folds 15 are at a distance from the base 11 and are directed towards the base 11 in the trunk 10 in the drawing.
  • the coupling piece 30 shown in Fig. 1 is suitable for being fastened against a ceiling, for example by means of a screw through opening 31.
  • the coupling piece 30 has a U-shape in cross-section with diverging legs 32 having mutually approaching hooking elements 33 at their free ends.
  • the trunk 10 may easily be pressed home one by one into a number of coupling pieces 30 mounted in a row.
  • the legs 32 will spread in that case and the side walls 13 will approach one another, until the hooking elements 33 grip into the folds 15.
  • the legs 32 and the side walls 13 then spring back towards their original positions.
  • the batten 1 is provided, whereby the coupling pieces 30 are locked at the same time because the side walls 13 of the trunk 10 then lose most of their elasticity. This locking effect renders it possible to manufacture the trunk 10 from a comparatively thin plate material.
  • the folds 15 are closer to the mounting opening 12 than to the base 11.
  • the edge strips 14 each have an abutment zone 16 which is substantially parallel to the base 11, and a free edge 17 which is beaded outwards in the embodiment shown.
  • a sealing strip 20 is accommodated in each beaded free edge 17 in Fig. 2, extending along the relevant abutment zone 16 such that the side edges 5 of the batten 1 press against this strip.
  • the abutment zone 16 is bounded opposite the beaded free edge 17 by a guiding zone 18 which extends along the relevant side wall 13 and which centers the batten 1 when the latter is being put in position.
  • the batten 1 has at its inner surface 4 a coupling member 6 with hooks 7 which can be displaced towards one another against an internal spring pressure and which bear on the abutment zone 16.
  • the hooks 7 hit against the beaded free edges 17.
  • the edges 17 force the hooks 7 towards one another.
  • the hooks 7 will slide further up to the abutment zone 16 under the internal spring pressure of the coupling member 6 and guided by the edges 17.
  • the batten 1 is laterally enclosed by the trunk 10, with the result that the trunk 10 has become a rigid tube.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Securing Globes, Refractors, Reflectors Or The Like (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
EP97202590A 1996-08-26 1997-08-22 Luminaire Expired - Lifetime EP0826921B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP97202590A EP0826921B1 (fr) 1996-08-26 1997-08-22 Luminaire

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
EP96202359 1996-08-26
EP96202359 1996-08-26
EP97200923 1997-03-27
EP97200923 1997-03-27
EP97202590A EP0826921B1 (fr) 1996-08-26 1997-08-22 Luminaire

Publications (3)

Publication Number Publication Date
EP0826921A2 true EP0826921A2 (fr) 1998-03-04
EP0826921A3 EP0826921A3 (fr) 1998-08-12
EP0826921B1 EP0826921B1 (fr) 2006-08-23

Family

ID=27237590

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97202590A Expired - Lifetime EP0826921B1 (fr) 1996-08-26 1997-08-22 Luminaire

Country Status (1)

Country Link
EP (1) EP0826921B1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB700987A (en) 1950-11-10 1953-12-16 F W Thorpe Ltd Improvements in and relating to fluorescent electric lighting installations
DE962358C (de) 1953-12-24 1957-04-18 Siemens Ag Anordnung von einer oder mehr fuer sich elektrisch selbstaendigen Anbauleuchten fuer Leuchtstofflampen in Lichtbaendern
DE7429477U (de) 1974-08-31 1974-11-28 Beco Beleuchtungstechnik Jagielski W & Co Befestigungselement für Langfeldleuchten

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7702706U1 (de) * 1977-01-31 1977-05-05 Siemens Ag, 1000 Berlin Und 8000 Muenchen Lichtband in staubgeschützter Ausführung
DE4300549C2 (de) * 1993-01-12 1995-08-24 Trilux Lenze Gmbh & Co Kg Lichtbandleuchte
DE9415415U1 (de) * 1994-09-23 1994-11-10 Ellenbeck, Gerd, 58579 Schalksmühle Langfeldleuchtensystem

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB700987A (en) 1950-11-10 1953-12-16 F W Thorpe Ltd Improvements in and relating to fluorescent electric lighting installations
DE962358C (de) 1953-12-24 1957-04-18 Siemens Ag Anordnung von einer oder mehr fuer sich elektrisch selbstaendigen Anbauleuchten fuer Leuchtstofflampen in Lichtbaendern
DE7429477U (de) 1974-08-31 1974-11-28 Beco Beleuchtungstechnik Jagielski W & Co Befestigungselement für Langfeldleuchten

Also Published As

Publication number Publication date
EP0826921A3 (fr) 1998-08-12
EP0826921B1 (fr) 2006-08-23

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