US3676830A - Multiple access electric power distribution assembly - Google Patents

Multiple access electric power distribution assembly Download PDF

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Publication number
US3676830A
US3676830A US72615A US3676830DA US3676830A US 3676830 A US3676830 A US 3676830A US 72615 A US72615 A US 72615A US 3676830D A US3676830D A US 3676830DA US 3676830 A US3676830 A US 3676830A
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United States
Prior art keywords
channel
assembly
conductors
access
track
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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 - Lifetime
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US72615A
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English (en)
Inventor
Anthony C Donato
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Lightolier Inc
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Lightolier Inc
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Publication date
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Publication of US3676830A publication Critical patent/US3676830A/en
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B9/00—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation
    • E04B9/06—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation characterised by constructional features of the supporting construction, e.g. cross section or material of framework members
    • E04B9/064—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation characterised by constructional features of the supporting construction, e.g. cross section or material of framework members comprising extruded supporting beams
    • 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
    • F21V21/34—Supporting elements displaceable along a guiding element
    • F21V21/35—Supporting elements displaceable along a guiding element with direct electrical contact between the supporting element and electric conductors running along the guiding element
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R25/00—Coupling parts adapted for simultaneous co-operation with two or more identical counterparts, e.g. for distributing energy to two or more circuits
    • H01R25/14—Rails or bus-bars constructed so that the counterparts can be connected thereto at any point along their length
    • 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
    • F21V21/14—Adjustable mountings
    • F21V21/30—Pivoted housings or frames

Definitions

  • This invention is in the field of electrical distribution assemblies and more particularly, elongated, ceiling mounted assemblies which may function as a mounting for electrical fixtures, which fixtures are provided or associated with plug members readily connected in power deriving relation with the assembly.
  • an electric power distribution assembly in the nature of a track or channel mountable in the ceiling or the like in combination with electrical fixtures, such as spotlights, flood lights, canopy lights, etc., the track and lights including interconnecting mechanisms which at once ermit the light fixtures to be secured in depending relation to the track at any position along the length thereof, and at the same time electrically connect fixtures to the track.
  • the track is mounted to a ceiling, or to a fixture which is in turn supported on the ceiling.
  • the track includes a downwardly open slot providing access to the interior.
  • Supported within the interior of the track or channel are two or more electrical conductors or mains in suitably insulated carriers or sheaths.
  • An electrical fixture may be physically and electrically connected to the track by inserting a specially formed connector and mounting plug into the vertical access slot of the track at any point along the length thereof, and shifting the plug in such manner that it supports the fixture to the track and effects an electrical connectionof the conductors to the conductor components of the fixture.
  • Assemblies of the sort set forth in said patents provide a considerable advance, particularly by way of flexibility, in that the number and position of lighting fixtures may be readily varied to suit any particular lighting requirement.
  • an assembly of the type described enables the lighting configuration to be readily modified whenever a changed arrangement of paintings or sculptures suggests the need therefor.
  • electrical distribution assemblies of the type described have been regarded asadjuncts or auxiliaries to the main lighting system.
  • the present invention relates to an electric distribution assembly including an elongated track adapted to be fixed to or, preferably, provide a support for, a removable ceiling structure, such as a hung ceiling.
  • the distribution track is characterized by permitting electric connections to be effected from both beneath and above the track assembly.
  • the track is recessed into the ceiling in such manner that portions of the track or conductor carrier above the ceiling are concealed from view from below.
  • Electrical fixtures such as spotlights, flood lights or the like, may be removably connected to the undersurface of the track essentially in the manner set forth in the above noted patents.
  • the track provides a plurality of longitudinally spaced-apart access apertures accessible from above the ceiling, any one of which access apertures forms a receiver for an electric plug or tap connected to permanent or semi-permanent conventional lighting fixtures, providing a main lighting source.
  • the wires above the ceiling level are, of course, concealed from view from below.
  • the assembly is particularly adapted for use with tile ceilings including a tile support arrangement which permits tiles adjacent the electrical distribution assembly to be removed and replaced without permanent mechanical alteration.
  • the main lighting fixture may be electrically connected to or disconnected from the track.
  • the invention relates to an elongated electrical distribution assembly in the nature of a track or channel having a continuously open depending slot for the electrical and mechanical attachment of fixtures beneath the track, the track or channel having at its upper surface intermittent openings whereat the electrical connections may be Accordingly, it isan object of the invention to provide an improved electrical power distribution track assembly.
  • a further object of the invention is the provision of a device of the type described wherein the track at one edge directly supports removable ceiling tiles, the other edge or side of the track providing support for a ceiling tile hanger member whereby the tiles and hanger member may be bodily removed to provide access to the upper surface of the track without removing or otherwise disturbing the track proper.
  • FIG. 1 is a fragmentary perspective view of a ceiling in which has been installed a track assembly of the type described;
  • FIG. 2 is a magnified vertical section taken on the line 22 of FIG. 1;
  • FIG. 3 is a magnified plan view taken in the direction of the arrows 33 of FIG. 1;
  • FIG. 4 is a section taken on the line 44 of FIG. 3;
  • FIG. 5 is a fragmentary perspective view of a hanger section as may be employed in conjunction with the track removably to support ceiling tiles;
  • FIGS. "6a and 6b comprise perspective views of alternate forms of insulator supports for the conductors carried by the track.
  • FIG. I there is shown a ceiling construction C of the so-called hung ceiling type comprised of a plurality of interconnected ceiling tiles T.
  • the track assembly which is the subject of the present invention, is numbered 10. As will be clear from the ensuing description, the tiles along one side of the assembly 10 are directly supported on a flange or extension 11 projecting horizontally from the track or channel 10. The tiles located adjacent the side 12 of the track or channel 10 are removable by an upwardly pivoting movement, as will be set forth more fully hereinafter.
  • the track or distribution channel 10 preferably comprises an elongated aluminum extrusion which may be described as generally H-shaped in section, including side portions 12, 13 connected by a central bridge 14.
  • the length of the completed track will preferably be co-extensive with the length of the room or partition in which it is to be located.
  • the extruded track may be stocked in sections of predetermined length. Where a track in length exceeding the length of a section is desired, a pair of tracks are disposed in end abutting relation.
  • the opposed side walls 12, 13 of the track incorporate integral spline receiver channels 15, 16, respectively, which are generally in the configuration of outwardly facing Cs."
  • rectangular bridging splines may be inserted in the C shaped receiver channels. The splines lie within the channels to either side of the butt connection to interlock the abutting sections.
  • the side walls l2, 13 of the track include outwardly extending horizontal flanges 17, 18, respectively, from which the track is hung.
  • a length of track is secured to the usual laterally directed rigid ceiling supports 19 by a C-clip 20.
  • the clip 20 includes a back portion 21 disposed atop and angularly oriented relative to the ceiling supports 19, the clip including a pair of depending legs 22, 23, terminating in inwardly turned support fingers 24, 25, respectively.
  • the fingers 24, 25 lie immediately under the flanges 17, 18 of the track.
  • the ceiling will include a plurality of regularly spaced-apart ceiling support members 19, with clip connections being effected between the track at each intersection of the track and a support.
  • the interior of the track 10 is divided essentially into an upper compartment 26 and a lower compartment 27 by the bridge 14.
  • the lower compartment 27 forms a housing or enclosure for the conductor support elements 28, 29.
  • the insulating conductor support assembly may be comprised of two separate insulator members, such as the members 28, 29, or the same may be formed in a single U-shaped assemblage 30 (FIG. 6b), including a connector branch 31 integral with the legs 28, 29'.
  • U-shaped assembly 30 includes a plurality of longitudinally spaced-apart, generally oval apertures or cutouts 32 which, in the installed position, register with the spaced cutouts 33, (see FIGS. 3 and 4), in the bridge member 14 to provide access to the interior from above.
  • the conductor support assembly (whether of one or two piece construction) is comprised of an insulating plastic material, which material supports three electrical conductors 34, 35, 36, which are connected via a splice box (not shown) to the electrical mains. It will be readily recognized that while the device has been illustrated in connection with a three wire assembly to provide additional capacity, the unit is equally adaptable for use with a two wire circuit.
  • the conductor support assemblies are coextensive with the track sections, short free lengths of conductors extending for a length beyond the track to permit the conductors of adjacent track sections to be spliced together.
  • FIG. 2 there is shown a light assembly 40 which has been mechanically and electrically connected to the track assembly H).
  • the light assembly includes an attachment fitting 41 linking the yoke 42 of the light to the track assembly.
  • attachment fitting 41 Details of the attachment fitting 41 are shown in U.S. Pat. No. 3,246,074 and per se, form no part of the present invention. Accordingly, a detailed description thereof need not be made herein. It should be further appreciated that other fittings may be adapted for use with the track assembly of the present invention.
  • a locking knob which mechanically interlocks the attachment portion 41 to the track assembly 10.
  • the attachment includes, in addition, a rotatable central plug member 44 of insulating material carrying electrical tapping fingers 45, 46.
  • electrical connection is effected by rotating the plug by means of the control lever 47 from the dot and dash to the solid line position shown in FIG. 2, whereupon the conductors 34, 35 are contacted by the fingers 45, 46, respectively.
  • the device of the present invention provides means for effecting an electrical connection to the main or permanent lighting fixtures 48.
  • the fixtures 48 are hung in the usual manner from the overhead support structure and are provided with conductor leads 49, terminating in an upper tapping plug assembly 50.
  • the upper plug assembly 50 may be passed downwardly through anY of the slots or cutouts 33 formed in the bridge member 14 of the extrusion defining the track assembly. Unlike the connections which are effected beneath the track, the upper plug assemblies 50 need provide no mechanical hanging function. Accordingly, the plug may comprise an insulating body portion 51 having a knurled connector head 52. A pair of connector fingers 53, 54 project laterally from the body 51, it being understood that the fingers 53, 54 are electrically connected to a pair of conduits extending upwardly through the body 51 and through the conductor lead 49 to the fixture 48.
  • the body portion 51 includes a laterally directed retainer cam finger 55 adapted to secure the plug 50 in a desired position by engagement within a laterally offset retainer channel 56 formed integrally with the extrusion defining the track assembly 10.
  • the retainer cam finger 55 includes a beveled cam face 57.
  • conductor finger 53 and the retainer cam finger 55 are located substantially 180 apart relative to the periphery of the plug 50, the finger 54 being aligned with the retainer finger.
  • the plug is inserted into position by aligning the projecting finger with the lengthwise dimension of the cutouts or slots 33 and thereafter pressing the plug downwardly until the shoulder defined by the undersurface 58 of the connector head 52 abuts against the ledges 59, 60 defining the uppermost edges of the sides 12, 13 of the track assembly 10.
  • the plug is locked into position by rotating the same approximately so as to dispose the fingers 53, 54, 55 perpendicular to the longitudinal axis of the track. It will be observed that in this position the finger 53 contacts conductor 34, and that finger 54 contacts conductor 36 to effect electrical connection of the permanent fixture 48. By reason of the beveled edge portion 57, a wedging action of the locking finger 55 within the channel 56 occurs, so as positively to locate and maintain polarity of the plug in the circuit.
  • FIG. 5 a tile hanger clip 61 adapted to support ceiling tiles adjacent the side 12 of the track assembly. It will be understood that a series of clips 61 longitudinally spaced is provided, to effect the desired support of the tiles.
  • the clip 61 includes an outwardly directed tile support shoulder 62, an upwardly directed web 63, and a plurality of spaced, track engaging shoulders 64.
  • the web 63 is notched, as at 65, to define in the areas between the shoulders 64 a plurality of clearance cutouts 66, which cutouts are spaced to coincide with the sPacing of the access slots or cutouts 33.
  • the hangers or clips 61 are installed by inserting the shoulders 62 into the tile member and thereafter laying the support shoulders 64 over the ledge of the track assembly, with the clearance cutouts 66 aligned with the slots 33 (see FIG. 2).
  • the clearance cutouts 66 it will be observed that an upward pivotal pressure on a tile T supported by the clip 61 will permit the tile to be shifted clear of the track, the tile carrying with it the clip 61. In this manner, after the ceiling has been completed, access may readily be obtained to the upper surface of the track for effecting additional electrical connections or for relocation of existing fixtures.
  • a track assembly for supporting electrical conductors which, in the installed position in a ceiling, provides access both from above and below the ceiling for effecting electrical connections.
  • the track assembly permits a great deal of flexibility in the location and relocation of spotlights or the like on the undersurface of the track or conduit, and additionally provides means for effecting electrical connection to the upper surface of the track at any of a multiplicity of lengthwisely spaced apart positions.
  • the track In addition to functioning as an electrical distribution mechanism, the track also functions to support the ceiling proper adjacent the track.
  • the ceiling conceals the upper portions of the track from view from below and, thus, wiring leading from ceiling fixtures to the track is likewise concealed from view.
  • a power distribution track assembly comprising an elongated, rigid channel having generally vertically directed side wall portions connected by a transversely extending bridging web portion, the lower terminal edges of said wall portions defining a continuous access slot, a plurality of electrical conductors supported within said channel and extending longitudinally thereof, said conductors being insulated from each other and a plurality of spaced apart access cutouts formed in said bridging member and providing a means of direct access to said electrical conductors for a tapping plug.
  • an elongated insulating strip is positioned within said channel between said side wall portions and extends the length thereof, said strip being substantially U-shaped in cross section and having a base with a pair of spaced side walls each carrying at least one of said electrical conductors extending longitudinally thereof, said electrical conductors being accessible from the interior of said channel, the base of said U-shaped insulating strip being positioned in juxtaposition to said bridging web portion, said base having a plurality of longitudinally spaced access cutouts aligned with the access cutouts in said bridging portion.
  • a power distribution track assembly comprising an elongated, rigid channel having generally vertically directed side wall portions connected by a transversely extending bridging web portion, the lower terminal edges of said wall portions defining a continuous access slot, a plurality of spaced apart access cutouts formed in said bridging member, said cutouts being elongated in the direction of the longitudinal axis of said channel, a plurality of electrical conductors supported within said channel and extending longitudinally thereof, said conductors being insulated from each other, a first tapping plug assembly positioned in said slot and extending upwardly into the interior of said channel into connected relation to said conductors, and a second tapping plug assembly positioned in at least one of said access cutouts into the interior of said LII channel from above, said second plug assembly including tapping finger portions positioned to be electrically connected to said conductors responsive to rotation of said second plug assembly about an axis normal to the longitudinal axis of said channel.
  • tapping finger portions extend diametrically in opposite directions from said plug assembly and terminate in free portions adapted to contact said conductors, the spacing of said free portions of said fingers being greater than the transverse dimension of said access cutouts but smaller than the longitudinal dimension of said cutouts.
  • said channel includes at one side a laterally offset ceiling tile support flange adapted to provide vertical support for ceiling tiles adjacent said side, the assembly including a tile support clip including a vertically directed web arranged to lie adjacent the opposite side of said channel, said web including spaced support tabs overlying the uppermost edge of said channel adjacent said opposite side to support said clip, said web including at the lower edge an outwardly directed tile support shoulder adapted to engage and vertically support tiles disposed adjacent said opposite side of said channel.
  • a power distribution track assembly comprising an elongated, rigid channel having generally vertically directed side wall portions and having a transversely extending bridging web portion connecting said wall portions, the lower terminal edges of said wall portions providing a continuous access slot, a plurality of regularly spaced apart access cutouts formed in said bridging member, a plurality of electrical conductors extending longitudinally of said channel and electrically insulated from each other, said conductors being disposed between said slot and said bridging member, first plug means positioned in said slot and extending upwardly into electrical connection with said conductors, second plug means positioned in at least one of said access cutouts and extending downwardly from a position above said channel into electrically connected relation with said conductors.
  • a device in accordance with claim 9 wherein said channel is generally l-l-shaped in vertical section, said bridging member defining the connector branch of said H.
  • a ceiling assembly comprising, in combination, a power distribution track including an elongated, rigid channel having generally vertically directed side wall portions and having a transversely extending bridging web portion connecting said side wall portions, the lower terminal edges of said wall portions defining a slot providing access to the portions interiorly of said channel between said edges and said bridging web, a plurality of longitudinally spaced apart access cutouts formed in said bridging web, a plurality of electrical conductors extending longitudinally of said channel in the area between said edges and said web, a longitudinally extending tile support flange projecting laterally outwardly from one side wall of said channel, a first series of tiles having edge portions abutting against said one side of said channel, the tiles of said first series being supported by said flange, a second series of tiles having edge portions abutting against the opposite side wall of said channel, a plurality of support clip means for supporting said second series of tiles adjacent said opposite side, said clip means including horizontal leg portions engaging said tiles of said second series, vertically directed web

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Details Of Indoor Wiring (AREA)
  • Installation Of Indoor Wiring (AREA)
US72615A 1970-09-16 1970-09-16 Multiple access electric power distribution assembly Expired - Lifetime US3676830A (en)

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US7261570A 1970-09-16 1970-09-16

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US72615A Expired - Lifetime US3676830A (en) 1970-09-16 1970-09-16 Multiple access electric power distribution assembly

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CA (1) CA941039A (enrdf_load_html_response)
DE (1) DE2130695A1 (enrdf_load_html_response)
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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3910667A (en) * 1972-07-21 1975-10-07 Rotaflex Ltd Electrical supply installations
US5154641A (en) * 1991-04-30 1992-10-13 Lucifer Lighting Company Adapter to energize a light rail
GB2277211A (en) * 1993-04-13 1994-10-19 Abbott Products Limited A display system having an electrical supply
US20030036306A1 (en) * 2001-08-17 2003-02-20 Mccoy Phillip A. Track-type electrical distribution system
EP4007084A1 (de) * 2020-11-30 2022-06-01 Zumtobel Lighting GmbH Tragschienensystem für leuchten oder andere elektrische einheiten
EP4068538A1 (en) * 2021-03-29 2022-10-05 Wallled S.r.l. Connection system for the quick fastening of a connector
US20230400176A1 (en) * 2020-11-30 2023-12-14 Zumtobel Lighting Gmbh Mounting rail system with a tapping element

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2977566A (en) * 1957-06-14 1961-03-28 Lightolier Inc Lighting assembly
GB1144353A (en) * 1965-12-08 1969-03-05 Rotaflex Ltd Improvements in or relating to lighting installations
US3504172A (en) * 1967-06-15 1970-03-31 Milton Liberman Lighting fixture supporting and wiring channels
US3559146A (en) * 1968-10-25 1971-01-26 Nokia Oy Ab Current supply rail arrangement and a connection plug

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2977566A (en) * 1957-06-14 1961-03-28 Lightolier Inc Lighting assembly
GB1144353A (en) * 1965-12-08 1969-03-05 Rotaflex Ltd Improvements in or relating to lighting installations
US3504172A (en) * 1967-06-15 1970-03-31 Milton Liberman Lighting fixture supporting and wiring channels
US3559146A (en) * 1968-10-25 1971-01-26 Nokia Oy Ab Current supply rail arrangement and a connection plug

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3910667A (en) * 1972-07-21 1975-10-07 Rotaflex Ltd Electrical supply installations
US5154641A (en) * 1991-04-30 1992-10-13 Lucifer Lighting Company Adapter to energize a light rail
GB2277211A (en) * 1993-04-13 1994-10-19 Abbott Products Limited A display system having an electrical supply
GB2277211B (en) * 1993-04-13 1996-09-25 Abbott Products Limited A display system
US20030036306A1 (en) * 2001-08-17 2003-02-20 Mccoy Phillip A. Track-type electrical distribution system
US6827592B2 (en) 2001-08-17 2004-12-07 Pent Technologies, Inc. Track-type electrical distribution system
EP4007084A1 (de) * 2020-11-30 2022-06-01 Zumtobel Lighting GmbH Tragschienensystem für leuchten oder andere elektrische einheiten
US20230400176A1 (en) * 2020-11-30 2023-12-14 Zumtobel Lighting Gmbh Mounting rail system with a tapping element
AT18144U1 (de) * 2020-11-30 2024-03-15 Zumtobel Lighting Gmbh At Tragschienensystem für Leuchten oder andere elektrische Einheiten
US12007105B2 (en) * 2020-11-30 2024-06-11 Zumtobel Lighting Gmbh Mounting rail system with a tapping element
EP4068538A1 (en) * 2021-03-29 2022-10-05 Wallled S.r.l. Connection system for the quick fastening of a connector

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Publication number Publication date
CA941039A (en) 1974-01-29
DE2130695A1 (de) 1972-03-23
GB1296643A (enrdf_load_html_response) 1972-11-15

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