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Publication numberUS3872296 A
Publication typeGrant
Publication dateMar 18, 1975
Filing dateApr 18, 1974
Priority dateApr 18, 1974
Also published asCA1010001A, CA1010001A1
Publication numberUS 3872296 A, US 3872296A, US-A-3872296, US3872296 A, US3872296A
InventorsCohen Alain, Lalli Orfelio
Original AssigneeLightolier Inc
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Recessed lighting fixture
US 3872296 A
This invention is directed to an improved lighting fixture for a hung ceiling installation and is characterized by the provision of a frame mountable above the ceiling and a reflector assembly carrying a light source, the reflector assembly including a blade spring detent construction which permits the reflector assembly to be disconnected from the frame and reattached thereto from a position below the ceiling, as for changing a light bulb, etc., the spring assemblies being so constructed as to coact with the frame in the inserted position of the reflector, to cause the reflector to be biased upwardly against stop means in the frame.
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Description  (OCR text may contain errors)

United States Patent [19] Cohen et al.

[ 1 Mar. 18, 1975 1 RECESSED LIGHTING FIXTURE [73] Assignee: Lightolier Incorporated, Jersey City,

[22] Filed: Apr. 18, 1974 [21] Appl. No.: 461,934

4/1967 Totten 240/78 H 3,375,368 3/1968 Dorsky 240/78 H 3,560,732 2/1971 Green 240/78 HA X 3,697,742 10/1972 Bobrick 240/73 BC X 3,700,885 10/1972 Bobrick 240/78 H Primary Examiner-Richard A. Wintercorn Attorney, Agent, or Firm-Arthur B. Colvin [5 7] ABSTRACT This invention is directed to an improved lighting fixture for a hung ceiling installation and is characterized by the provision of a frame mountable above the ceiling and a reflector assembly carrying a light source, the reflector assembly including a blade spring detent construction which permits the reflector assembly to be disconnected from the frame and reattached thereto from a position below the ceiling, as for changing a light bulb, etc., the spring assemblies being so constructed as to coact with the frame in the inserted position of the reflector, to cause the reflector to be biased upwardly against stop means in the frame.

4 Claims, 5 Drawing Figures PATENTED mm 1 819. 5

sum 2 0F 3 II 1. .I

9 mm m gm PATEMEB MAR l 8 I975 vsum 3 or '3 RECESSED LIGHTING FIXTURE BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is in the field of lighting fixtures, and particularly lighting fixtures intended to be installed in so-called hung ceiling installations.

2. The Prior Art It is known to provide in a hung ceiling installation a composite lighting fixture comprising a frame element secured to the building structure above the ceiling, and a reflector assembly extending through the ceiling adapted to be secured to the frame in a manner permitting removal in a downward direction.

In prior lighting fixtures of this type, it is mandatory on replacement of the reflector that the latter be rotated relative to the frame so as carefully to align various slots and detents employed to interconnect the noted components.

Additionally, where the replacement was not properly effected, the connection afforded permitted a drooping or sagging of the reflector relative to the housing or frame whereby the reflector might hang beneath the level of the fixtures, presenting a nonuniform appearance.

SUMMARY The present invention may be summarized as directed to an improved lighting fixture for hung ceiling installations including generally a frame adapted to be mounted above the ceiling and having a bezel projecting through the ceiling, and a reflector carrying the lighting source, insertible into mounted position within the frame by movement in an upward direction, the components to be assembled being free of elements requiring careful alignment. The lighting fixture of the present invention is characterized particularly by the incorporation therein of a novel spring retainer assembly which, in the connecting position, urges the reflector upwardly within the frame against stop or locator portions in the frame.

It is accordingly an object of the present invention to provide an improved lighting fixture for a hung ceiling installation.

A further object of the invention is the provision of a lighting fixture of the type described which eliminates virtually any tendency of the reflector to droop or sag, by causing the terminal movement of the reflector to the installed position to be effected by energy stored in the springs themselves, and wherein installation of the reflector into the frame may be readily accomplished without the necessity of aligning elements of the two noted parts.

A further object of the invention is the provision of a device of the type described wherein the components are held together by spring detents constructed and arranged to exert upward biasing force on the reflector, whereby the latter is lifted into the selected position relative to the frame.

To attain these objects and such further objects as may appear herein or be hereinafter pointed out, reference is made to the accompanying drawings, forming a part hereof, in which:

FIG. 1 is an exploded perspective view of the components of a lighting fixture in accordance with the invention;

FIG. 2 is a vertical sectional view through the lighting fixture in assembled position in a ceiling installation;

FIG. 3 is a horizontal section taken on line 3-3 of FIG. 2; and

FIGS. 4 and 5 are magnified fragmentary sectional views showing slight modifications of support spring assemblies.

Referring now to the drawings, there is shown in FIG. 1 a lighting fixture 10 including generally a frame 11 carrying a junction box 12. The frame 11 preferably includes a circumferential band 13 having affixed thereto upwardly directed side brackets 14, 14.

The brackets 14, 14 include vertically directed spaced parallel slots 15. The slots 15 are aligned with spaced threaded apertures 16 formed in mounting brackets 17.

Mounting brackets 17 preferably comprise sheet metal elements bent into a general trapezoidal configuration, including a face portion 18 and inclined side wings 19 and 20. The wings 19 and 20 preferably include a vertically arrayed series of slots 21. Additionally, the side wings 19, 20 are each provided with a vertically directed saw tooth slot 22, for forming, if desired, an anchoring point for vertical support members fixed to the buildingsuperstructure, not shown.

Stabilization of the assembly may be effected by horizontal cross bars 23 having apertures 24, 25 adjacent their distal ends, such apertures forming attachment points to the building superstructure above the ceiling.

The cross bars 23 are assembled by passing the same through an appropriate pair of the slots 21 formed in the wings or legs 19, 20 of brackets 17. The bars 23 include downwardly directed teeth 26 which, as best seen in FIG. 2, are shifted downwardly into the slots 21, before attachment of the bars 23, so as to preclude lateral relative movement between the brackets 17 and bars 23, and to stabilize the fixture against tilting.

The cross bars, manner of their attachment to the superstructure and to the mounting brackets 17, form no part of the present invention, the same being described for illustrative purposes only, it being recognized that many other conventional means for mounting the frame above the ceiling may be used.

The frame 11 is secured to the mounting brackets 17 by spaced pairs of machine screws 27 inserted outwardly through the slots 15 and into the threaded apertures 16. As will be best appreciated from FIG. 2, the base portions 28 of the mounting brackets 17, in the assembled position, are seated upon the upper surface 29 of the ceiling structure 30 to support the weight of the frame, unless the latter has been otherwise mounted as by connection of the brackets 17 to some portion of the building structure above the level of the ceiling.

The structure insofar as presently described, is mounted above the level of the ceiling. The frame carries means for supporting a decorative bezel assembly 31 which extends through the ceiling proper, concealing the opening formed therein. The bezel 31 includes a plurality of horizontally directed, angularly spaced apart slots 32, three in number being shown in the illustrated embodiment. Additionally, a plurality of stops S, are formed on the bezel at angularly spaced apart locations about the inner diameter thereof.

The frame 13 includes a plurality of depending flanges 33, angularly spaced apart to correspond with the slots 32. The flanges 33 are each provided with depending, generally L-shaped bezel support springs 34,

the springs including outwardly extending shoulders 35. It will be appreciated that in order to mount or demount the bezel assembly 31, the springs 34 are flexed inwardly, the bezel inserted upwardly, whereupon the shoulders 35 of the springs may enter into slots 32, as shown in FIG. 2. The bezel is thus secured to the remainder of the fixture. The bezel assembly 31 includes an outwardly directed flange 36, which underlaps the ceiling, concealing the hole cut into the ceiling tile for mounting of the fixture.

It will be appreciated that before installation of th reflector assembly 37, access for mounting of the aforementioned components and relative adjustment thereof is provided through the aperture within the bezel.

The reflector assembly 37 includes a frusto-conic body portion 38, to the upper end 39 of which is releasably mounted a housing 40 carrying a bulb socket 41 suitably connected to electrical conduit 42. Electrical connections between the socket end of the conduit 42 and junction box 12 are, as usual, made within the junction box, the expanse of the conduit or cable provided between the box 12 and the housing 40 being sufficient to permit thereflector assembly to be lowered a substantial distance through and below the ceiling.

Preferably, the housing 40 may be connected to the reflector 38 by a pair of spring wings 43, 44 having detent portions 45, sized to enter and snap outwardly into slots 46 formed on opposed portions of the neck 39 of the reflector.

The principal advance of the present invention lies in the manner of connection of the reflector to the bezel by a series of spring members 47 fixed to the reflector adjacent the mouth portion 48 thereof.

The springs 47, as best appreciated from viewing FIG. 4 and FIG. 5, include a lower attachment portion 49, a central detent portion 50, and an upper end portion 51. Since the springs of FIGS. 4 and differ only in the specifics of the manner of attachment to the reflector 38, identical reference numerals will be used except as respects such attachment portions.

An upper cam surface 52, inclined at an angle to the vertical, is disposed between the upper end 51 of springs 47 and the detent 50. A lower cam portion 53 is interposed between the detent 50 and attachment portion 49. As will be apparent from FIG. 4, the detent portion 50 projects outwardly a radial distance beyond the rim 48 of the reflector.

The rim 48 of the reflector is of double layer construction, the outer layer being provided by an upwardly rolled flange 54 which surrounds the lowermost or mouth portion of the reflector. The annular flange 54 is in proximate spaced relation to the wall of the reflector 38, the flange and reflector defining therebetween a narrow annular slot.

In accordance with the embodiment of FIG. 4, the flange 54 is provided with a series of angularly spaced apart apertures 55. Spring 47, adjacent its attachment portion 49, is formed with a tongue 56 struck from the material of the spring.

The spring is inserted into position within the reflector by forcing the same downwardly in the space between the flange 54 and the reflector, with the tongue 56 aligned with the aperture 55. When the spring is forced downwardly, the tongue 56 is permitted to pass into the space by temporary distortion and deflection of the metallic components of the tongue and rim, the tongue 56 snapping into position within the aperture 55 shown in FIG. 4, when the tongue and aperture are aligned.

With the parts thus positioned, removal of the spring from the reflector cannot be accomplished without destruction of the reflector.

The embodiment of FIG. 5 is similar in all respects, except that a pair of pointed barbs 57 are struck from the lower portion 49 of the spring. In this construction it is unnecessary to provide holes in the flange 54 since, when the springs are driven downwardly into the annular slot between the flange 54 and the reflector, the barbs are embedded into the metal of the flange and resist removal of the spring.

As noted, the spring in its mounted position, is compressed as compared with its relaxed position, a portion 58 of the spring 47 adjacent the upper end 51 being pressed against the reflector.

In order to effect insertion of the reflector and the lighting housing carried thereby, it is merely necessary to press the reflector upwardly into the bezel 31. Upon upward movement, it will be apparent that a lower edge portion 59 of the bezel will engage against upper cam portion 52, causing a further flattening of the spring 47, permitting the detent portions 50 of the springs, which normally project a radial distance beyond the bezel, to be cammed inwardly within the confines of the bezel. Upon further upward movement, the detent 50 will pass through the bezel, it being appreciated that when the detent 50 is at a level above the uppermost edge 60 of the bezel, the springs are free to pivot outwardly away from the reflector.

As best seen in FIG. 2, the lower cam portions 53 of the springs will be aligned with and engage against the upper portion 60 of the bezel. In view of the angularity of the cam surface 53, the outward biasing forces exerted by the cam portion 53 of the spring against the portion 60 of the bezel will be translated into an upward force on the reflector. In this manner, the outward biasing portions of the springs 57 will cause the upper edge portion 61 of the rim 54 to be urged upwardly against the heightwisely aligned stops S on the bezel, whereupon the reflector is maintained in position within the bezel and cannot droop or sag.

Should it become necessary or desirable to remove the reflector, such operation may be accomplished by the simple expedient of pulling the same downwardly, whereupon the springs 47 will be cammed inwardly by interaction of the lower cam portion 53 against the upper ledge 60 of the bezel.

From the foregoing it will be apparent that there is described in accordance with the invention, a lighting fixture for hung ceilings or the like, having a reflector which is readily removable by a simple exertion of a downward force against the reflector, and reinsertible by a simple upward force, the reflector, in the inserted position, being biased upwardly by the spring components carried thereby.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent of the United States is:

1. A lighting fixture for a hung ceiling installation comprising a frame adapted to be mounted above the ceiling, a cylindrical bezel releasably secured to said frame, said bezel having an annular upper shoulder portion disposed above the level of the ceiling and having a lower circular flange adapted to underlie the lower surface of said ceiling, a frusto-conic, downwardly open reflector assembly releasably secured to said bezel, said reflector assembly having a depending open mouth portion, an annular rim formed on said reflector assembly surrounding said mouth portion, the outer peripheral surface of said rim fitting slidably and intimately within said bezel, stop means extending interiorly of said bezel, said stop means being disposed in the path of the upper edge of said rim to limit upward movement of said reflector assembly relative to said bezel, and a plurality of angularly spaced apart, generally vertically directed support spring members mounted on said reflector for releasably connecting said reflector to said bezel, said support spring members including a lower mounting portion secured to said reflector adjacent said rim, an upper, free end portion engaging an exterior wall of said reflector in upwardly spaced relation to said rim, a detent portion intermediate said upper and lower portions, said detent portion of said support spring members projecting a distance radially outwardly beyond said rim, said support spring members including upper and lower cam portions disposed, respectively, between said upper end and said detents, and between said detents and said lower ends, said upper cam portions being positioned and inclined to coact with said bezel to deflect said detents inwardly toward said reflector responsive to upward relative movement of said bezel and reflector, said lower cam portions, when said detents are shifted to a position above said bezel, coacting with the upper edge of said bezel to urge said rim of said reflector upwardly against said stop positions, thereby releasably to retain said reflector in said installed position.

2. A fixture in accordance with claim 1 wherein said lower mounting portions of said support spring members are sandwiched between said rim and a wall portion of said reflector.

3. A fixture in accordance with claim 2 wherein said mounting portions include a tongue member angularly extending therefrom, and said rim includes apertures within which said tongue members are received, said support spring members being retained on said reflector by the engagement of said tongues in said apertures.

4. A fixture in accordance with claim 2 wherein said mounting portions include a barb member, said barb members being angularly related to the body of said support spring member and indented into the metal of said reflector in a direction to prevent removal of said support spring members.

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US1931343 *Sep 13, 1932Oct 17, 1933Lewis Emory SIllumination
US2935601 *Aug 17, 1956May 3, 1960Westinghouse Electric CorpLuminaire and mounting means therefor
US2978574 *Jun 30, 1959Apr 4, 1961Baker Frederick CShield-supporting means for light fixture
US3130949 *Jul 2, 1962Apr 28, 1964Century Lighting IncSupport for lighting and building fixtures and the like
US3286090 *Aug 10, 1964Nov 15, 1966Sechrist Mfg CoAdjustable ceiling fixtures
US3313931 *May 14, 1962Apr 11, 1967Sterling Ind IncTelescoping recessed lighting fixture
US3316399 *Jan 29, 1962Apr 25, 1967C & M Products LtdPot-light fixture
US3375368 *Aug 8, 1966Mar 26, 1968Aluminum Proc CorpLighting fixture and reflector therefor
US3560732 *May 23, 1968Feb 2, 1971Us Industries IncDiffuser mounting arrangement for lighting fixtures
US3697742 *Sep 4, 1970Oct 10, 1972Air King CorpTrim ring for architectural light including means for stepped rotational and axial adjustment
US3700885 *Oct 1, 1970Oct 24, 1972Air King CorpArchitectural light and adjustment means therefor
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US4039822 *May 5, 1976Aug 2, 1977Lightolier IncorporatedCircular recessed lighting fixture
US4274615 *Jul 9, 1979Jun 23, 1981Lightolier IncorporatedAttachment clamp for lighting fixture
US4374407 *Dec 23, 1980Feb 15, 1983Muscatine Lighting Mfg. Co., Inc.Ballast mounting means
US5077650 *Oct 31, 1990Dec 31, 1991Frank CestariMounting system for recessed lighting fixtures
US5124901 *Jul 11, 1991Jun 23, 1992Thomas Industries Inc.Sloping ceiling adapter for recessed lighting
US5452193 *Sep 3, 1993Sep 19, 1995National Service Industries, Inc.Inclined ceiling downlight fixtures
US5690423 *Mar 4, 1996Nov 25, 1997Nsi Enterprises, Inc.Wire frame pan assembly for mounting recessed lighting in ceilings and the like
US5746507 *Jan 6, 1997May 5, 1998Thomas Industries, Inc.Recessed lighting fixture for two light sizes
US6116749 *Jun 3, 1998Sep 12, 2000Spaulding Lighting, Inc.Canopy luminaire assembly
US6149280 *Feb 5, 1999Nov 21, 2000Spaulding Lighting, Inc.Method and apparatus for retrofitting canopy luminaire assemblies
US6264344Dec 17, 1999Jul 24, 2001Spaulding Lighting, Inc.Canopy luminaire assembly
US6283430Apr 28, 2000Sep 4, 2001Cooper Technologies CompanyHorizontal socket housing assembly
US6343873Apr 28, 2000Feb 5, 2002Cooper Industries, Inc.Lighting fixture with downlight reflector and wallwash reflector
US6367945Mar 5, 2001Apr 9, 2002Spalding Lighting, Inc.Canopy luminaire assembly
US6431723Apr 28, 2000Aug 13, 2002Cooper Technologies, CompanyRecessed lighting fixture
US6474846 *Mar 5, 1999Nov 5, 2002Victor KelmelisFlush trim collar lighting system
US6505960Mar 19, 2001Jan 14, 2003Cooper Industries, Inc.Recessed lighting fixture locking assembly
US6931794 *Sep 22, 2000Aug 23, 2005John David Tilbury BurgessMethod and apparatus for installing fitting
US6957896 *Mar 19, 2004Oct 25, 2005John David Tilbury BurgessAperture edging member and method
US7380967 *Apr 10, 2006Jun 3, 2008Lsi Industries, Inc.Foldable support for a domed illumination element
US7401681 *Jan 19, 2004Jul 22, 2008Toa CorportionMounting support device for ceiling embedded speaker system
US7484866May 9, 2006Feb 3, 2009Genlyte Thomas Group LlcAdjustable lighting fixture for sloped ceiling
US7530705Nov 16, 2007May 12, 2009Genlyte Thomas Group LlcRotatable lamp with braking mechanism
US7549780Feb 16, 2007Jun 23, 2009Canlyte, Inc.Recessed lighting fixture
US7559677Sep 30, 2007Jul 14, 2009Genlyte Thomas Group LlcRecessed luminaire adjustment mechanism
US7625105Sep 18, 2007Dec 1, 2009Genlyte Thomas Group, LlcRelamping cartridge assembly
US7654705Jul 22, 2005Feb 2, 2010Genlyte Thomas Group LlcRecessed fixture with hinged doors and rotatable lamp
US7658517Nov 16, 2007Feb 9, 2010Genlyte Thomas Group, LlcHinged doors for recessed light fixture
US7673842Jul 31, 2006Mar 9, 2010Koninklijke Philips Electronics, N.VCaptive retaining spring
US7784754Dec 8, 2005Aug 31, 2010Genlyte Thomas Group LlcAdjustable hanger bar assembly with bendable portion
US7874708Jun 26, 2007Jan 25, 2011Genlyte Thomas Group, LlcT-bar mounting system
US7993037Aug 27, 2008Aug 9, 2011Koninklijke Philips Electronics N.V.Recessed light fixture with a movable junction box
US8066413Dec 10, 2009Nov 29, 2011Genlyte Thomas Group LlcRecessed fixture with hinged doors and rotatable lamp
US8201962Mar 11, 2008Jun 19, 2012Genlyte Thomas Group LlcRecessed downlight fixture frame assembly
US8297804Jul 16, 2009Oct 30, 2012Koninklijke Philips Electronics N.V.Recessed light fixture having integrally formed mounting tracks
US8506134 *Aug 18, 2010Aug 13, 2013Hubbell IncorporatedRetrofit mounting assembly for recessed lighting fixtures
US8517325 *Dec 8, 2009Aug 27, 2013Cooper Technologies CompanyAdaptor band
US8851437Aug 26, 2013Oct 7, 2014Cooper Technologies CompanyAdaptor band
US8944648Oct 18, 2007Feb 3, 2015Genlyte Thomas Group LlcFixture accessory retaining assembly
US9343884 *Oct 3, 2011May 17, 2016Tyco Fire & Security GmbhMounting unit
US9568170 *Jul 24, 2014Feb 14, 2017Dongguan Jiasheng Lighting Technology Co., Ltd.Light fixture with support structure
US20040177572 *Mar 19, 2004Sep 16, 2004Burgess John David TilburyAperture edging member and method
US20060155162 *Jan 11, 2005Jul 13, 2006Severns Matthew LSelf-contained light for infant care apparatus
US20060227563 *Apr 10, 2006Oct 12, 2006Reed Mark CFoldable Support for a Domed Illumination Element
US20060231326 *Jan 19, 2004Oct 19, 2006Toa CorporationMounting support device for ceiling embedded speaker system
US20080023894 *Jul 31, 2006Jan 31, 2008Genlyte Thomas Group LlcCaptive Retaining Spring
US20100085766 *Dec 10, 2009Apr 8, 2010Genlyte Thomas Group LlcRecessed Fixture with Hinged Doors and Rotatable Lamp
US20110013405 *Jul 16, 2009Jan 20, 2011Koninklijke Philips Electronics N.V.Recessed light fixture having integrally formed mounting tracks
US20110134650 *Dec 8, 2009Jun 9, 2011Cooper Technologies CompanyAdaptor Band
US20120044703 *Aug 18, 2010Feb 23, 2012Hubbell IncorporatedRetrofit mounting assembly for recessed lighting fixtures
US20120177232 *Sep 15, 2010Jul 12, 2012Robert KatzMeans for Causing Luminaires to Act as an Audio Transmission and Support Means
US20130306365 *Oct 3, 2011Nov 21, 2013Faruk MeahMounting Unit
US20150292717 *Jul 24, 2014Oct 15, 2015Dongguan Jiasheng Lighting Technology Co., Ltd.Lighting fixture
USD405207Jun 3, 1998Feb 2, 1999Spaulding Lighting, Inc.Canopy luminaire assembly
USD756025 *Oct 21, 2014May 10, 2016Cooper Technologies CompanyRecessed luminaire housing top
USD763499 *Nov 13, 2014Aug 9, 2016Siu Woo LeeRecessed luminaire holder
USRE36004 *May 3, 1996Dec 22, 1998Nsi Enterprises, Inc.Inclined ceiling downlight fixtures
DE9310757U1 *Jul 17, 1993Mar 17, 1994Trilux Lenze Gmbh & Co KgEinbaustrahler
DE102004011581B4 *Mar 10, 2004Oct 23, 2014Hoffmeister Leuchten GmbhEinbauleuchte
EP0024461A1 *Jul 16, 1979Mar 11, 1981Schweizer, René - verstorben - gesetzlich vertreten durch Scheidegger, FranzLoudspeaker arrangement for ceiling and wall mounting and system encasing for electrical apparatuses for ceiling and wall mounting
EP0233465A1 *Jan 13, 1987Aug 26, 1987Georges HouplainDevice comprising a removable support for ceiling-recessed lighting fixtures
U.S. Classification362/366, 248/343
International ClassificationF21V17/00, F21S8/02, F21V17/16
Cooperative ClassificationF21V17/164, F21S8/02
European ClassificationF21V17/16B, F21S8/02