EP0496557A2 - Beleuchtungseinrichtung - Google Patents

Beleuchtungseinrichtung Download PDF

Info

Publication number
EP0496557A2
EP0496557A2 EP92300461A EP92300461A EP0496557A2 EP 0496557 A2 EP0496557 A2 EP 0496557A2 EP 92300461 A EP92300461 A EP 92300461A EP 92300461 A EP92300461 A EP 92300461A EP 0496557 A2 EP0496557 A2 EP 0496557A2
Authority
EP
European Patent Office
Prior art keywords
light
pair
assembly
fitment
ceiling
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.)
Withdrawn
Application number
EP92300461A
Other languages
English (en)
French (fr)
Other versions
EP0496557A3 (en
Inventor
Derek Marney
David Hardy
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.)
Litetronics UK Ltd
Original Assignee
Litetronics UK Ltd
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 Litetronics UK Ltd filed Critical Litetronics UK Ltd
Publication of EP0496557A2 publication Critical patent/EP0496557A2/de
Publication of EP0496557A3 publication Critical patent/EP0496557A3/en
Withdrawn legal-status Critical Current

Links

Images

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
    • 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
    • F21V21/04—Recessed bases

Definitions

  • the present invention relates to a lighting assembly for use in areas where there is a suspended ceiling and, in particular, to an assembly for use with fluorescent or other forms of tube lighting.
  • the light fittings for the area are arranged so that their lower edges are flush with the ceiling and the components making up the fitting are recessed above the ceiling. In this way most of the components making up the fitting are hidden leaving only the actual light, a reflector and perhaps a louvre or light diffuser on show.
  • the fittings usually comprise rectangular fabricated metal housings in which the lights, a reflector and all the electrical control gear and wiring for the lights are mounted. A functional or decorative louvre or a diffuser may then be used to cover the lights and rest on flanges formed across the lower open side of the housing.
  • a lighting assembly for use with a suspended ceiling comprising a light fitment incorporating electrical components including at least one light socket, and a suspension means for the light fitment, and characterised in that the suspension means comprises at least one pair of opposed parallel support plates which can be suspended a fixed distance apart and each of which can be secured to one or other of a pair of parallel support rails for the suspended ceiling.
  • the suspension means comprises two pairs of support plates.
  • the opposed parallel support plates are of a length commensurate with that of the light fitment and also fulfil the function of light-spill baffles.
  • the suspension means comprises a rigid tie bar which can be secured between the support rails.
  • the tie bar is fastened to each of the support rails by a bracket using means which prevent relative rotation of the bar with respect to the rail.
  • a beam is connected to each of the pair of support plates, on which pair of beams the light fitment can be slid into position between the plates.
  • the light fitment comprises an inverted tray housing at least one pair of opposed light sockets for a tube light, such as a fluorescent tube light, and above which is located electrical control gear for the light.
  • a tube light such as a fluorescent tube light
  • the light fitment comprises a louvre which is spring mounted to the tray to cover the light.
  • a louvre which is spring mounted to the tray to cover the light.
  • flanges which in use abut the support rails for the ceiling.
  • a lighting assembly and a suspended ceiling combination comprising a light fitment incorporating electrical components including at least one light socket, a suspension means for the light fitment, and at least one pair of parallel support rails for decorative elements making up the ceiling, and characterised in that the suspension means comprises at least one pair of opposed parallel support plates which are suspended a fixed distance apart and each of which is secured to one or other of the pair of parallel support rails.
  • the assembly of the invention differs from the prior art in that it is installed at the same time as the suspended ceiling itself rather than prior to it and in this way the lighting assembly as a whole is positioned with much more accuracy.
  • the suspension means provided for holding and suspending the light fitment comprising the light, a reflector and a louvre or a diffuser is assembled at the same time as the supporting rails for the suspended ceiling are positioned so that the ceiling does not have to be constructed around the finished lighting assemblies.
  • the whole suspended ceiling arrangement including the lighting assemblies is, therefore, constructed in a unified fashion so that the lighting assemblies fit well with the various elements of the ceiling.
  • the assembly according to the invention comprises a light fitment and a suspension means to enable the fitment to be mounted into a suspended ceiling arrangement.
  • the suspension means has been designed for use with the two main types of suspended ceiling arrangements currently on the market and it is envisaged that little alteration would be required to enable it to be used with any particular new arrangement.
  • a plurality of support rails are suspended by wires or the like from a ceiling soffit and interlocked at right angles to form a rigid criss-cross pattern.
  • the rails are spaced at regular intervals in both directions to form square apertures in which tiles or other decorative elements are located.
  • some of the rails may be located closer together in certain parts of the ceiling so that light fittings and the like can be mounted therebetween and the ceiling tiles or other decorative elements supported by the rails butt directly up to the fittings.
  • the suspension means is intended to be tied to the support rails of a ceiling arrangement and to be installed in an area at the same time as the ceiling so that the light fitments can be mounted after completion of the installation of the support rails.
  • the suspension arrangement comprises a plurality of pairs of identical support plates 1, only one of which is shown in Figure 1.
  • the plates 1 are substantially rectangular in shape but with two corners removed to reduce weight and with an angled flange 1A along one edge which engages with a support member or rail 4 forming part of the suspended ceiling arrangement.
  • the plates 1 are provided with a plurality of slots and holes to enable them to be mounted in position and to be connected to the light fitment of the assembly. Some of the holes and the slots are spaced and dimensioned according to the particular type of suspended ceiling arrangement with which the assembly is to be used but these can be altered to suit any suspended ceiling arrangement.
  • the pairs of support plates 1 are rigidly suspended from a ceiling soffit so that the plates 1 are parallel and opposed with the flanges 1A projecting towards each other.
  • the distance between the plates should be commensurate with the dimensions of the light fitment forming part of the assembly.
  • the support plates 1 can also fulfil the function of light-spill baffles to prevent light leakage from the light fitment above the suspended ceiling arrangement.
  • the plates 1 are elongated horizontally so that their length is commensurate with that of the light fitment they support.
  • the plates 1 can be suspended from a ceiling soffit by any convenient means but are preferably rigidly suspended by means of right-angled brackets 2 and support wires 12.
  • the brackets 2 are attached to the plates 1 by means of studs 10 on one face 2A and their other right-angled face 2B has an eye-bolt 9 and nut 19 attached thereto by means of which the bracket 2 is connected to the wires 12.
  • the studs 10 engage through slots 1B formed in the plates 1 to allow for slight variations in the location of the wires 12 and to permit the pairs of plates to be suspended facing one another with accuracy.
  • the plates 1 could be suspended at each side by pairs of wires 20 which are tied together and tensioned by a spring clip 11.
  • One of these wires 20 is hooked into a vertical slot 1C formed in the plate 1 and attached to the clip 11, whereas the other wire 20 is attached to the clip 11 and to a suspension point in the ceiling soffit, the clip 11 enabling the wires 20 to be shortened or lengthened to locate the plate exactly in position.
  • a third option is to suspend the plates 1 at each side simply by one wire 13 which is located in the slot 1C. However, this option does not permit the exact position of the plate 1 in relation to the ceiling to be varied easily as may be necessary when the rest of the assembly is put together.
  • the pairs of plates 1 are connected to the support rails 4 forming part of the ceiling arrangement.
  • One of the plates 1 in each pair is connected to one of a pair of rails 4, which are suspended in a conventional manner, so that the flange 1A locates beneath an enlarged portion 4A of the rail, which in this example has an inverted T-shaped cross-section with the portion 4A being along the top of the upright stem of the inverted T.
  • the plates 1 are bolted to the rails 4, the bolts (not shown) engaging through slots 1D in the plates 1 and the square holes 4B in the rails 4 so that the position of the plates relative to the rails 4 can be adjusted if necessary.
  • the rails 4 are connected together by tie bars 6 at regularly spaced intervals.
  • Each of the tie bars 6 is preferably a rigid rectangular member and is connected between the pair of rails 4 by means of a pair of mounting brackets 5.
  • the brackets 5 are each connected to one of the rails 4 by means of square-headed studs 7 to prevent relative rotation as one edge of each of the studs 7 abuts the cross-bar of the T of the rail 4.
  • the bars 6 are rivetted to the brackets 5 by pairs of rivets 18 also to prevent relative rotation.
  • the tie bars 6 are spaced between the rails 4 at the same interval, say 1.8 m, as the pairs of plates 1, and located centrally of the plates 1.
  • the beams 3 form a gear tray support and cable management system and are preferably made as rigid aluminium extrusions that can be cut to appropriate lengths corresponding to the distance between consecutive pairs of plates 1 in each row.
  • the beams 3 have a substantially channel-shaped cross-section and at least one of them is provided with an upstanding lip 3A along one or both upper edges which in use defines a cable tray 3B.
  • Two beams 3 are secured to each plate 1 by a double nut and bolt fixing 8 to prevent relative rotation so that the two beams 3 adjoin centrally of the plate 1. Beams 3 are thus secured along the rows of the ceiling arrangement parallel with the rails 4 so that parallel pairs of beams 3 face each other between the pairs of plates 1.
  • the aforementioned components of the assembly make up a suspension means for a light fitment and they are assembled in position at the same time as the rails 4 of the ceiling arrangement are being hung in position.
  • the light fitment portion of the assembly is positioned before the ceiling arrangement is finished by the location of the decorative elements between the rails 4. Some of these decorative elements are also cut so that they can butt up to the light fitment to give the ceiling a finished appearance.
  • the light fitment comprises a gear tray 14, which is an inverted tray with a reflecting surface in which are located sockets (not shown) to hold lights such as fluorescent tubes.
  • the gear tray 14 under a cover 15 is located conventional electrical control gear for the lights.
  • the gear tray 14 has a width corresponding to the distance between the plates 1 of each pair and is adapted to engage in the lower channels defined by the opposed beams 3.
  • the wiring for the lights is also retained by the beams 3 in the upper cable trays 3B, which may be covered by a detachable lid 3C as shown in Figure 3.
  • one or more trays 14 are slid along opposed lengths of beams 3 and located at the predetermined positions where light is desired.
  • the trays 14 are of the order of 1.8 m in length so that the ends of a tray 14 correspond with the positions of the tie bars 6.
  • the length of the louvre 17 is arranged to match exactly that of the gear tray 14.
  • the louvre 17 is retained within the tray 14 by means of four wishbone springs 16 which are attached to the louvre 17 and have two projecting legs 16A engageable in slots 14A formed in the tray 14.
  • Around the lower edges of the louvre 17 are projecting flanges 17A,17B.
  • the flanges 17A along the length of the louvre 17 locate beneath the cross-pieces of the rails 4 whereas the flanges 17B across the ends of the louvre 17 run between the rails 4 and cover the tie bars 6.
  • the flanges 17A,17B are pulled tight to abut the rails 4 and the tie bars 6 respectively by the springs 16.
  • the suspended ceiling arrangement is itself finished as previously described by the location of ceiling tiles or other decorative elements between the rails 4. Those tiles or elements that butt up to the ends of the light fitment are rested on the rails 4, which abut the flanges 17B of the louvre 17 to give the installation a finished appearance.
  • the lighting assembly of the invention is not subject to the same disadvantages as those used with suspended ceiling arrangements in the prior art as the suspension means is built together with the ceiling.
  • it is lighter in weight and cheaper to produce than those assemblies used previously as the large cumbersome fabricated housings used in the prior art are no longer part of the assembly. This also makes the lighting assembly easier to install.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Securing Globes, Refractors, Reflectors Or The Like (AREA)
EP19920300461 1991-01-25 1992-01-20 A lighting assembly Withdrawn EP0496557A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB919101670A GB9101670D0 (en) 1991-01-25 1991-01-25 A lighting assembly
GB9101670 1991-01-25

Publications (2)

Publication Number Publication Date
EP0496557A2 true EP0496557A2 (de) 1992-07-29
EP0496557A3 EP0496557A3 (en) 1992-09-16

Family

ID=10689020

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19920300461 Withdrawn EP0496557A3 (en) 1991-01-25 1992-01-20 A lighting assembly

Country Status (2)

Country Link
EP (1) EP0496557A3 (de)
GB (1) GB9101670D0 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112879822A (zh) * 2021-01-11 2021-06-01 北京御匠新技术有限公司 一种车站雨棚用线条灯

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1566081A (de) * 1967-05-31 1969-05-02
US3816880A (en) * 1972-12-04 1974-06-18 Prudential Lighting Corp Multiple detent retaining clip
FR2368668A1 (fr) * 1976-10-19 1978-05-19 Plessy Gerard Dispositif de suspension a un plafond d'appareils d'eclairage ou autres

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1566081A (de) * 1967-05-31 1969-05-02
US3816880A (en) * 1972-12-04 1974-06-18 Prudential Lighting Corp Multiple detent retaining clip
FR2368668A1 (fr) * 1976-10-19 1978-05-19 Plessy Gerard Dispositif de suspension a un plafond d'appareils d'eclairage ou autres

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112879822A (zh) * 2021-01-11 2021-06-01 北京御匠新技术有限公司 一种车站雨棚用线条灯

Also Published As

Publication number Publication date
EP0496557A3 (en) 1992-09-16
GB9101670D0 (en) 1991-03-06

Similar Documents

Publication Publication Date Title
US5009383A (en) Suspended ceiling electrical bracket
US5516068A (en) Device support bracket
US6637165B2 (en) Raised floor system and support apparatus
US5953870A (en) Raised floor system and cable support apparatus
US2852663A (en) Luminaires
US3848385A (en) Modular ceiling construction
US4175360A (en) Coffered ceiling system
US10288269B2 (en) Ceiling system
US6347493B1 (en) Raised floor system and support apparatus
US20090207603A1 (en) Retrofit Light Assembly
US4932170A (en) Valuted sub-ceiling illumination system
CA2415589C (en) Support plate for a luminaire
US3265879A (en) Frame for drop ceiling construction
US3415018A (en) Grid supported ceiling lighting fixture
EP0496557A2 (de) Beleuchtungseinrichtung
EP2028409A2 (de) Decke mit anliegenden Leuchten und Verfahren zur Montage dieser Decke
WO1993003307A1 (en) A lighting assembly and bracket therefor
JPH0332007Y2 (de)
US20230037173A1 (en) Ceiling grid support bar, and ceiling system
JP2562694Y2 (ja) 天井への照明具及び空調空気吹き出し部材の取付け装置
CA2696225C (en) Suspended ceiling grid system
JP3123701B2 (ja) オフィス構造
JPH0627418B2 (ja) 組立式グレーチング
JPH0521770Y2 (de)
JP3062580B2 (ja) 天井の設備機器先付け工法

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): DE ES FR GB IT NL PT

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): DE ES FR GB IT NL PT

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19930317