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EP0129325A2 - Beleuchtungsschiene - Google Patents

Beleuchtungsschiene Download PDF

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Publication number
EP0129325A2
EP0129325A2 EP84303291A EP84303291A EP0129325A2 EP 0129325 A2 EP0129325 A2 EP 0129325A2 EP 84303291 A EP84303291 A EP 84303291A EP 84303291 A EP84303291 A EP 84303291A EP 0129325 A2 EP0129325 A2 EP 0129325A2
Authority
EP
European Patent Office
Prior art keywords
contacts
low voltage
track
fitting
rails
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Withdrawn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
EP84303291A
Other languages
English (en)
French (fr)
Other versions
EP0129325A3 (de
Inventor
James Antony Tooth
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.)
Rotaflex PLC
Original Assignee
Rotaflex PLC
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 Rotaflex PLC filed Critical Rotaflex PLC
Publication of EP0129325A2 publication Critical patent/EP0129325A2/de
Publication of EP0129325A3 publication Critical patent/EP0129325A3/de
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • H01R25/147—Low voltage devices, i.e. safe to touch live conductors
    • 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
    • H01R2201/00—Connectors or connections adapted for particular applications
    • H01R2201/08—Connectors or connections adapted for particular applications for halogen lamps

Definitions

  • the present invention relates to a track lighting system.
  • track lighting means in the context of a track lighting system an electric lighting system in which a lamp fitting is engageable at a randomly selected position along a track having conductor rails which each have an exposed surface contactable by a respective contact in the lamp fitting.
  • argon filled lamps are generally used with conventional track lighting systems.
  • halogen-filled, quartz-bulb lamps as have found increasing use in vehicle headlights, operate at a much higher colour temperature and thus, by more efficient conversion of electricity to light, provide an opportunity for the provision of more efficient, cheaper lighting.
  • a low voltage track lighting system comprising:
  • low voltage means 30 volts or less.
  • a low voltage track lighting track comprising an elongate body of insulating material and a pair of elongate conductor rails supported on the body, the arrangement and shape of the body and the conductor rails being such that in use, with a lamp fitting having a pair of contacts urgable into good electric contact with their respective rails, each conductor rail is compressed by its contact against the portion of the body supporting it and the supporting portion is adapted to be pressed against on its side opposite from the said conductor rail by force resulting from the lamp fitting to provide that contact pressure between the rail and its contact can provide good electric contact therebetween
  • a low voltage track-lighting track comprising an extrusion of insulating material and a pair of conductor rails accommodated on the extrusion, the conductor rails presenting a shape which may be complementarily matched by contacts of a lamp fitting.
  • the conductor rails present flat faces, although the track may be bent to convenient installed shape.
  • the conductor rails are positioned on either side of a central web of the extrusion.
  • conductor rails may be protected by a pair of flanges extending in the manner a channel on either side, but spaced from the central web and conductor rails, such flanges are not necessary because the conductor rails do not have to be protected for safety reasons due to the use of low voltage.
  • the conductor rails may be stiff enough to be self-supporting if located at their edges, the sandwich arrangement of one conductor rail, central web, other conductor rail preferably provides that the arrangement is self-supporting against force exerted by lamp-fitting contacts tending to squeeze the sandwich arrangement.
  • the extrusion includes conductor rail locating grooves.
  • the extrusion may be adapted for support on a ceiling or wall on its own, for instance by having a broad flange forming the head of a T - in section - with the central web forming the leg of the T, the flange being broad enough to accommodate fixing screw holes or a strip of self-adhesive material on its upper surface; it is preferred that the extrusion be shaped for clip attachment. Clips for such attachment may be short, along the length of the extrusion, but again it is preferred that the "clips" be in the form of a separate plastics material extrusion.
  • This second extrusion may be initially attached in position, by nail, screw, double-sided self-adhesive tape or the like and the conductor carrying extrusion subsequently snapped or manipulated into position.
  • Such two extrusion track has the advantage that it can be narrow, hence cheap and neat.
  • a low voltage track-lighting lamp fitting including a pair of conductor-rail-engaging contacts which shaped complementarily to the rails and which are adapted and arranged to be moved for contact with conductor rails.
  • the track may be channel shaped with conductor rails on either side of the channel, in which case the contacts are arranged to be moved away from each other.
  • the track may have the two conductor rails on the same side of a web of the track extrusion in which case the contacts are arranged to be moved in the same direction.
  • the contacts are arranged to be moved in towards each other.
  • the contacts may be spring biassed for movement in towards each other, with the fitting including means for moving the contacts apart for movement of the fitting with respect to the'track.
  • the fitting may include means for selectively moving the contacts towards or away from each other without spring assistance.
  • the contacts be spring biassed away from each other and that the fitting includes means for moving them towards each other.
  • this means is a cam arrangement.
  • the contacts are slidably mounted in and arranged to move radially of a central generally circular, in cross-section, body.
  • a cam member partially surrounds the central body and is twistable on the body to move the contacts in.
  • the contacts have portions extending through the central body to the cam member although the cam member could extend into the body.
  • Springs may be provided in the central body to urge the contacts against the cam member.
  • the contacts are preferably resilient.
  • the lamp-fitting includes a lamp socket connected to the contact-carrying central body by means of an, adjustable unlimited angularly, connector.
  • the connector includes in one part a central conducting rod and spaced annular conducting ring, extending around and generally radially of the rod, and in another part a pair of conducting elements spaced longitudinally of the rod, the arrangement being such that the remote end of the rod circularly-slidingly contacts one of the two elements and the annular ring circularly-slidingly contacts the other of the two elements, and the rod is radially-insulatingly spaced from the annular conducting ring and the other of the two elements.
  • the rod is electrically connected to one of the contacts in the central body and the annular conducting ring is electrically connected to the other contact, with the lamp socket contacts being electrically connected to the two elements.
  • the arrangement could be reversed.
  • a second such connector is provided with its rod oriented at right angles to that of the first connector.
  • the second connector total unlimited angular adjustability of the lamp socket is achieved.
  • the respectively adjustable portions of the second connector are effectively similar with two elements carried on a lamp holder body.
  • the two elements may be connected by wires to the contacts of the lamp socket on the body, which may be a screw socket, or a bi-pin but is preferably a bayonet-fitting socket; in the preferred embodiment the two elements are continued in the form of strips directly to the contacts of the socket.
  • the two strips are oriented with their planes extending transversely to the central axis of the socket the required deflection of the bayonet-fitting contact pins can be accommodated by bending of the strips.
  • the strips extend with their planes parallel to the central axis of the socket, each strip is bent along an approximately 45° line to bring the strip to the contact pin, the required deflection is accommodated by sideways deflection of the strips.
  • a low voltage track lighting system having a mains transformer 1, a track 2 connected by wires 3 to the low voltage side of the transformer 1 and a lamp fitting 4 attached to the track 2.
  • the track 2 has two copper conductor rails 5, as best seen in Figure 2, to each of which one of the wires 2 is connected.
  • the rails 5 are accommodated in grooves 6 on either side of a central web 7 of a plastics material extrusion.
  • the extrusion has upper parts 8, in effect forming a flange which gives the extrusion a T configuration.
  • the upper parts are accommodated in a second channel shaped extrusion 9 of the same plastics material with lips 10 at its mouth.
  • the second extrusion is adhered by double-sided self-adhesive tape 11 to a ceiling 12.
  • the track 2 rests on the lips 10. It may be either manipulated - one part 8 first - or snapped into engagement with the second extrusion 9.
  • the second extrusion and the track 2 are together referred to as a two part track.
  • the top 13 of the first extrusion between the parts 8, is recessed to accommodate a screw head if the second extrusion 9 is thereby secured.
  • the fitting 4 has a pair of brass flat-faced elongate contacts 14, see also Figure 3, which are flat-faced to be complementarily shaped to the flat copper conductor rails 6.
  • the contacts are urged in the direction of the arrows A, see below, to make firm contact with the rails 6 which by sandwiching the central web 7 provide a rigid abutment.
  • the contacts 14 extend down to the bottom of a central body portion 15, shown dashed in Figure 2, of the fitting where they are mechanically secured. They have resilience whereby in the absence of the urging they spring away from the conductor rails 6.
  • One of the contacts 14 at its lower end is abutted by a riveted rod 16 which passes through the other contact with an insulating gap to terminate in another rivet head on the outside of a flat, bent copper element 17 on the surface of an angle bracket 18 of insulating material.
  • a further flat, bent copper element 19 extends on the opposite faces of the bracket 18.
  • the rod is riveted only so tight as to hold the bracket 18 firmly to the central body portion 15, whereby the bracket can be turned to any angle without limit with respect to the body portion with electrical contact maintained at all times between the one contact and the element 17 via the rod 16 and between the other contact and the other element 19 at their annular portions 20.
  • An exactly similar angularly adjustable connector is provided between the other end of the bracket 18 and a lug 21 on a lamp holder 22, see Figure 5.
  • the rod 23 in this connector has a spring 24 under one of its heads to increase frictional contact so that the lamp holder will maintain the angular orientation to which it is turned. It will be appreciated that except as restricted by fouling of the lug 21 with the bracket 18 in the region of the rod 16 the lamp holder 22 can be turned to any orientation required.
  • Each contact has an outer lug 25 which extends out through its own guide portion 26 of the central cylindrical body 15.
  • a cam sleeve 27 is mounted for twisting movement around the body 15, the sleeve being retained on the body 15 by pegs 28 - shown dashed in Figure 4 - which engage circumferentially short grooves 29 in the body. The extent of the grooves 29 limits the amount of twisting action available.
  • Cam portions 30 of the sleeve 27 extend up outside the guide portions 26.
  • the cam sleeve is of polycarbonate material and has sufficient strength when twisted clockwise in Figure 3 to drive the contacts 14 into firm low ohmic loss contact with the conductor rails 6 - shown dashed in Figure 3.
  • the configuration and resilience of the cam portions 30 is such that when engaged the contact remains held in position. Indeed the engagement is sufficiently firm to support the weight of the lamp fitting 4.
  • the cam sleeve is provided with a rubber grip 31.
  • Figure 4 shows the lamp fitting being offered up to the track 2 with the contacts open under their resilience.
  • the lug 21 has on its outer side surfaces copper strips 33 connected via the described connector to the contacts 14.
  • the lug 21 is a continuation of a lamp holder body 34 provided with a pair of slots 35 and a boss 36 with a screw 37 for holding a shade 38, shown only in Figure 1.
  • a bayonet-fitting socket 39 is provided at the opposite end of the body 34 . It has oppositely arranged slots 40 accommodating lugs 41 of a ceramic disc 42 in which lamp contacting pins 43 are set.
  • a spring 44 urges the disc and pins outwards.
  • Two apertures 45 divided by a partition 46 are provided in the body 34. In these apertures extensions of the strips 33 freely extend.
  • each strip is riveted at an angled portion 48.
  • the freedom of the strips in their apertures 45 allows them to deflect sideways when the pins 43 and disc 42 are pressed in against the spring 44.
  • the partition 46 prevents contact between the two strips.
  • rods 16, 23 may be sleeved to prevent any chance of shorting with the elements through which they extend.
  • the track may be installed at orientation, in particular it may run up a wall.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Fastening Of Light Sources Or Lamp Holders (AREA)
  • Arrangements Of Lighting Devices For Vehicle Interiors, Mounting And Supporting Thereof, Circuits Therefore (AREA)
EP84303291A 1983-05-17 1984-05-16 Beleuchtungsschiene Withdrawn EP0129325A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB08313528A GB2150766B (en) 1983-05-17 1983-05-17 Track lighting
GB8313528 1983-05-17

Publications (2)

Publication Number Publication Date
EP0129325A2 true EP0129325A2 (de) 1984-12-27
EP0129325A3 EP0129325A3 (de) 1985-12-27

Family

ID=10542842

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84303291A Withdrawn EP0129325A3 (de) 1983-05-17 1984-05-16 Beleuchtungsschiene

Country Status (2)

Country Link
EP (1) EP0129325A3 (de)
GB (1) GB2150766B (de)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0201091A2 (de) * 1985-05-08 1986-11-12 Hailo-Werk Rudolf Loh GmbH & Co. KG Niedervolt-Halogen-Leuchte
DE3620920A1 (de) * 1986-06-24 1988-01-14 Kurth Egon Dipl Ing Designer Niedervolt-leuchte
EP0260726A2 (de) * 1986-09-17 1988-03-23 The Boeing Company Passagiers-Unterhaltungssystem mit direkt gekoppeltem Sitzempfänger
EP0279788A2 (de) * 1987-02-19 1988-08-24 Giampaolo Targetti Lineares Strukturteil mit Profilquerschnitt und mit gewichtsvermindernden Öffnungen
WO1989004437A1 (en) * 1987-11-04 1989-05-18 Kurt Ribitsch Low-voltage lighting equipment
AU592303B3 (en) * 1989-07-06 1989-11-24 Peter Noel Cass Improvements in extra low voltage lighting
WO1990011471A1 (en) * 1987-09-21 1990-10-04 Kaehoenen Matti Light fitting system
EP0404979A1 (de) * 1989-06-28 1991-01-02 Michael Jordan Lichtschienen-System
GB2245698A (en) * 1990-07-03 1992-01-08 Powerlite Electrical Products Lighting track system
AT407906B (de) * 1991-07-19 2001-07-25 Ind Und Design Licht Inh Domin Elektrisches leuchtensystem
EP1421315A1 (de) * 2001-07-31 2004-05-26 Comfort Products, Inc. Elektrisches beleuchtungsschienensystem
US7172332B2 (en) 2003-02-14 2007-02-06 Tech Lighting L.L.C. Field bendable line voltage track lighting system

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT8620584V0 (it) * 1986-01-23 1986-01-23 Teknolit Srl Dispositivo per l'alimentazione elettrica di apparati utilizzatori funzionanti a bassa tensione di sicurezza.
GB2185863B (en) * 1986-01-28 1990-07-18 Illuma Designs Limited Tracked lighting systems
GB8808950D0 (en) * 1988-04-15 1988-05-18 Marlin Lighting Ltd Articulated support for lamp &c
GB2230385B (en) * 1989-04-08 1993-10-13 Festo Kg A control device
DE4013863A1 (de) * 1990-04-30 1991-10-31 Staff Gmbh & Co Kg Adapter fuer stromschienen
DE4108158C2 (de) * 1991-03-14 2002-11-28 Festo Ag & Co Linear-Antriebsvorrichtung
DE9111003U1 (de) * 1991-09-05 1991-12-19 Popp + Co Gmbh, 8582 Bad Berneck Schiene für Niedervolt-Beleuchtungskörper
GB2355061A (en) * 1999-09-17 2001-04-11 Kazuhiro Yamanaka A lamp constructed from electrically conducting elements

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE815998C (de) * 1950-02-26 1951-10-08 Robert Kubik Horizontal verschiebbare Aufhaengevorrichtung fuer elektrische Deckenleuchten
US2617849A (en) * 1949-10-19 1952-11-11 Edward N Wright Electric outlet molding with movable outlet
US3321730A (en) * 1964-09-21 1967-05-23 Donald M Schlangen Tree lighting apparatus
FR2152153A5 (de) * 1971-09-06 1973-04-20 Nokia Oy Ab
FR2346874A1 (fr) * 1976-04-01 1977-10-28 Nokia Oy Ab Raccord d'angle pour rails conducteurs
US4099817A (en) * 1977-01-27 1978-07-11 Donald J. Booty Track lighting
DE3120267A1 (de) * 1981-05-21 1982-12-16 Lichtplanung Dinnebier Kg, 5600 Wuppertal Halterung von elektrischen gluehlampenfassungen an stromschienen

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2617849A (en) * 1949-10-19 1952-11-11 Edward N Wright Electric outlet molding with movable outlet
DE815998C (de) * 1950-02-26 1951-10-08 Robert Kubik Horizontal verschiebbare Aufhaengevorrichtung fuer elektrische Deckenleuchten
US3321730A (en) * 1964-09-21 1967-05-23 Donald M Schlangen Tree lighting apparatus
FR2152153A5 (de) * 1971-09-06 1973-04-20 Nokia Oy Ab
FR2346874A1 (fr) * 1976-04-01 1977-10-28 Nokia Oy Ab Raccord d'angle pour rails conducteurs
US4099817A (en) * 1977-01-27 1978-07-11 Donald J. Booty Track lighting
DE3120267A1 (de) * 1981-05-21 1982-12-16 Lichtplanung Dinnebier Kg, 5600 Wuppertal Halterung von elektrischen gluehlampenfassungen an stromschienen

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0201091A2 (de) * 1985-05-08 1986-11-12 Hailo-Werk Rudolf Loh GmbH & Co. KG Niedervolt-Halogen-Leuchte
EP0201091A3 (de) * 1985-05-08 1989-01-04 Hailo-Werk Rudolf Loh GmbH & Co. KG Niedervolt-Halogen-Leuchte
DE3620920A1 (de) * 1986-06-24 1988-01-14 Kurth Egon Dipl Ing Designer Niedervolt-leuchte
EP0260726A2 (de) * 1986-09-17 1988-03-23 The Boeing Company Passagiers-Unterhaltungssystem mit direkt gekoppeltem Sitzempfänger
EP0260726A3 (en) * 1986-09-17 1989-06-14 The Boeing Company Passenger entertainment system having direct coupled seat receivers
EP0279788A2 (de) * 1987-02-19 1988-08-24 Giampaolo Targetti Lineares Strukturteil mit Profilquerschnitt und mit gewichtsvermindernden Öffnungen
EP0279788A3 (de) * 1987-02-19 1991-03-20 Giampaolo Targetti Lineares Strukturteil mit Profilquerschnitt und mit gewichtsvermindernden Öffnungen
WO1990011471A1 (en) * 1987-09-21 1990-10-04 Kaehoenen Matti Light fitting system
WO1989004437A1 (en) * 1987-11-04 1989-05-18 Kurt Ribitsch Low-voltage lighting equipment
EP0404979A1 (de) * 1989-06-28 1991-01-02 Michael Jordan Lichtschienen-System
AU592303B3 (en) * 1989-07-06 1989-11-24 Peter Noel Cass Improvements in extra low voltage lighting
GB2245698A (en) * 1990-07-03 1992-01-08 Powerlite Electrical Products Lighting track system
GB2245698B (en) * 1990-07-03 1994-08-31 Powerlite Electrical Products Lighting track system
AT407906B (de) * 1991-07-19 2001-07-25 Ind Und Design Licht Inh Domin Elektrisches leuchtensystem
EP1421315A1 (de) * 2001-07-31 2004-05-26 Comfort Products, Inc. Elektrisches beleuchtungsschienensystem
EP1421315A4 (de) * 2001-07-31 2007-02-21 Comfort Prod Inc Elektrisches beleuchtungsschienensystem
US7172332B2 (en) 2003-02-14 2007-02-06 Tech Lighting L.L.C. Field bendable line voltage track lighting system
US8033711B2 (en) 2003-02-14 2011-10-11 Tech Lighting L.L.C. Field bendable line voltage track lighting system

Also Published As

Publication number Publication date
GB2150766B (en) 1987-11-18
GB2150766A (en) 1985-07-03
GB8313528D0 (en) 1983-06-22
EP0129325A3 (de) 1985-12-27

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Owner name: ROTAFLEX P.L.C.

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Inventor name: TOOTH, JAMES ANTONY