EP0500399A1 - Lustre - Google Patents

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Publication number
EP0500399A1
EP0500399A1 EP92301517A EP92301517A EP0500399A1 EP 0500399 A1 EP0500399 A1 EP 0500399A1 EP 92301517 A EP92301517 A EP 92301517A EP 92301517 A EP92301517 A EP 92301517A EP 0500399 A1 EP0500399 A1 EP 0500399A1
Authority
EP
European Patent Office
Prior art keywords
chandelier
conductors
chamber
flex
busbar
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP92301517A
Other languages
German (de)
English (en)
Other versions
EP0500399B1 (fr
Inventor
Keven Verdun-Thacker
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.)
Josephs David
Original Assignee
Josephs David
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 Josephs David filed Critical Josephs David
Publication of EP0500399A1 publication Critical patent/EP0500399A1/fr
Application granted granted Critical
Publication of EP0500399B1 publication Critical patent/EP0500399B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • F21S8/04—Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures
    • F21S8/06—Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures by suspension
    • F21S8/065—Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures by suspension multi-branched, e.g. a chandelier
    • 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
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/06—Arrangement of electric circuit elements in or on lighting devices the elements being coupling devices, e.g. connectors

Definitions

  • This invention relates to chandeliers and more particularly to chandeliers of the kind comprising a supporting means for mounting the chandelier on an overhead support, a junction chamber carried on said supporting means, hollow lamp arms extending laterally from and supported on said chamber, respective lamp holders carried on said arms remotely from said chamber, first electrical flex conductors extending into said chamber and for connecting said chandelier to a source of electrical supply and second electrical flex conductors extending through said arms and operatively connected, with the lamp holders, said second flex conductors being electrically connected in said junction chamber with said first flex conductors to enable said source of supply to be placed in electrical circuit with said lamp holders.
  • the chandelier supporting means comprise a central hollow stem through which said first electrical flex conductors extend and which carries the junction chamber.
  • Decorative crystals of glass or similar material may be fixed to any part of the mechanical structure described.
  • the supporting means comprise a central hollow stem on which the junction chamber is carried
  • electrical connection of the lamp holders to a source of supply is normally effected, by way of a ceiling rose or junction box in a ceiling, by means of a two or three core flexible cable which passes through the central stem to the junction chamber carried thereon.
  • the chamber serves as a junction box within which the flex in the central stem is connected with the flexes in the lamp arms. Simple devices such as scruits are employed to connect the conductors of the flex in the stem with those of the flexes in the arms.
  • the present invention consists in a chandelier comprising a supporting means for mounting the chandelier on an overhead support, a junction chamber carried on said supporting means, hollow lamp arms extending laterally from and supported on said chamber, respective lamp holders carried on said arms remotely from said chamber, first electrical flex conductors extending into said chamber and for connecting said chandelier to a source of electrical supply and second electrical flex conductors extending through said arms and operatively connected, with the lamp holders, said second flex conductors being electrically connected in said junction chamber with said first flex conductors to enable said source of supply to be placed in electrical circuit with said lamp holders, characterised in that said arms are separably mounted on said chamber each through close engagement of an end part thereof with an apertured element in alignment with an opening in a side wall of said chamber and a busbar is disposed within said chamber and has said first flex conductors electrically connected thereto whilst the conductors of each of said second flexes terminate in said chamber in electrical connecting means which are separately electrically connected to said busbar, said connecting means having dimensions
  • said supporting means comprise a central hollow stem for mounting the chandelier on an overhead support, said junction chamber being carried on said stem, and said first electrical flex conductors extend through said stem for connecting said chandelier to said source of electrical supply.
  • said busbar is formed with conductive tracks to which said first flex conductors and said connecting means are connected.
  • the connecting means of each second flex connect with complementary connecting means provided on said conductive tracks.
  • said connecting means of each second flex and complementary connecting means of the busbar form a male and female type connection.
  • said connecting means connecting the flex conductors of each arm to the busbar comprise a female connector and said complementary connecting means comprise respective pins upstanding from said tracks with which said female connector is engageable.
  • said female connector comprises a generally cylindrical body having a plurality of female elements which open through a side of said body and respectively connect to the flex conductors of the corresponding arm, said conductors entering said body at an end thereof.
  • said busbar comprises a printed circuit board on which said conductive tracks are formed.
  • said conductive tracks are concentric circular tracks.
  • said tracks are of chevron form in nested array.
  • the printed circuit board is supported in the junction chamber upon a part of said stem and is disposed normal to the stem.
  • a further preferred form has externally threaded end parts of the lamp arms extending through respective apertures in the junction chamber side wall and engaging respective nuts aligned with said apertures.
  • the female connector is of cylindrical form, it is dimensioned to allow passage thereof through said nuts.
  • the chandelier structure according to the invention is readily dismantled by removing the cover of the junction chamber to expose the electrical connections therein.
  • the connections between the second flexes which extend in the lamp arms to the busbar are then disconnected and the arms can then be separated from the chamber.
  • the smaller box thus required for shipment can be made of thinner material and yet be as strong as the box required to hold the fully assembled chandelier.
  • a chandelier 10 comprises a central hollow stem 11 provided with a ring fitting 12 at its upper end for supporting the chandelier from an overhead support. Near its lower end, there is mounted on the stem 11 a junction chamber 13 comprising an inverted cup 15 closed by a cover 16.
  • a lower part 17 of the stem 12 is externally threaded and the cup 15 is mounted on the stem adjacent the upper end of said externally threaded part 17.
  • the cover 16 is secured to the cup 15 by an internally threaded knob 18.
  • the cup 15 has a vertical side wall 20 in which are formed a plurality of apertures for receiving hollow lamp arms 22. Externally threaded end portions 24 of the lamp arms extend respectively through said apertures in the side wall 20 of the junction chamber 13.
  • a first three core flex 29 extends within the stem 11 and adjacent the ring mounting 12 provides three conductors for connection to a ceiling rose or junction box to which electrical power is supplied from a remote source.
  • the flex 29 emerges from a lateral opening 30 near the bottom of part 17 of the stem 11 and at its free end terminates in a female connector 31, hereinafter more fully described.
  • Within each lamp arm 22 there extends from the corresponding lamp holder 27 three single core flexes 33 which terminate within the junction chamber where the flex conductors are connected to a female connector 31.
  • a three core flex can be employed in place of the three flexes 33.
  • the female connectors 31 each comprise a two part moulding, each of semi-cylindrical form, within which are contained three hollow connectors 34 to which, are connected, in the case of the lamp arm flexes, the conductors respectively of the flexes 33 and, in the case of the flex 29, the three conductors of that flex.
  • the conductors are connected to the hollow connectors 34 by having their free ends crimped to laterally extending parts 35 of the connectors 34.
  • a busbar 40 Towards the upper end of the threaded part 17 of the stem 11 is mounted a busbar 40. To this end, the busbar has a central aperture 41 which is engaged on the part 17 and secured between nuts 42 near the upper end of that part.
  • the busbar 40 comprises a printed circuit board formed on its upper surface with concentric conductive tracks 43, 44, 45. Radial rows 46 of pins 47 each comprise three pins 48, 49, 50 which penetrate the tracks 43, 44, 45 respectively making electrical connection with said tracks.
  • the pins 48, 49, 50 are disposed parallel with the axis of the stem 11. It will be seen that each connector 31 can cooperate with a row of pins 47 so that its female connector elements 34 are engaged respectively by said pins and make electrical contact therewith. In known manner, such as by differential spacing of the pins, the engagement between each connector 31 and the corresponding row of pins is adapted so as to allow only an electrically safe connection, i.e. a connection of safe polarity, to be formed.
  • the female connectors 31 are of generally cylindrical form and the female connecting elements 34 thereof open through the cylindrical side wall thereof.
  • the conductors of the flexes as the case may be, 29 or 33, extend from an end of the cylindrical body of the connector 31.
  • each connector 31 connected with a lamp arm flex 33 is small enough to allow passage of the connector 31 through the nut 26 and the aperture in the wall 15 aligned coaxially with the nut 26.
  • the connector 31 attached to the flex 29 will normally be of the same dimensions as the other connectors 31 though, since in dismantling the chandelier, the chamber 13 is not separated from the stem 11, there is no need to separate the connector 31 of the flex 29 from the pins on the busbar 40.
  • the connectors 31 which are connected to the flexes 33 are removed from the respective rows of pins to which they are connected.
  • the arms 22 are then separated from the nuts 26 and the associated connectors can then be passed through the nuts 26 so as wholly to detach the arms from the junction chamber 13.
  • Flat packing of the chandelier is accordingly facilitated.
  • connectors 31 in male form with pins which fitted in rows of holes formed respectively in the concentric tracks of the busbar 40, for ease of passage of the lamp arm connectors 31 through the nuts 26 it is preferred to provide the connectors 31 in the female form described.
  • the internal diameter of the nuts 26 is normally 8.9mm to engage with lamp arms of standard diameter.
  • the cylindrical body of the connectors 31 can be made to be slightly less than this dimension whilst at the same time ensuring that adequate creepage and clearance exists between conducting metal parts.
  • the chandelier may be otherwise supported from its overhead support, e.g. by a chain.
  • the chandelier arms can be separated as described from the chamber and the size of the packaging for transportation of the chandelier thus reduced.
  • busbar has been described as a printed circuit board with concentric conductive tracks, the tracks could alternatively be in the form of an array such that a row of three pins connected to the tracks forms a polarised set of three for engagement with the connectors.
  • a circular, busbar 50 is mounted on the stem 11 as previously described and has five concentric conductive tracks with which pins 51 of each of a plurality of radial rows 52 of pins make contact.
  • a five core flex 53 is employed in place of the flex 29 and has live lines L1, L2 and L3 neutral line N and earth line E.
  • the chandelier would have five lamps or sets of lamps indicated by filaments A, B, C, D and E and it will be seen that when line L1 is live lamps A, B and C will be energised whilst when line L2 is energised lamp D will be lit and when line 3 is energised lamp E will be lit. It will be apparent that the connectors 31 of lamp D will need to connect line L2 via the busbar to the lamp holder of lamp D and the connector 31 of lamp E will require to connect line L3 by way of the busbar with the lamp holder of lamp E.
  • One or more of the lines L i , L 2 and L 3 or additional live lines could instead of being connected to lamps, be used to carry control signals.
  • a male connector 60 has axially extending pins 61 and 62 which connect with conductors of single core flexes 63, 64 which extend through the lamp arms to the lamp holders. In the male connector 60 adequate insulation is provided between pins 61 and 62.
  • Busbar 70 with which the pins 61 and 62 make contact comprises pairs of plates 71, 72 and 73, 74 which form spring contacts between which the pins 61 and 62 engage.
  • the pins can each engage with either of the plate pairs 71, 72 or 73, 74. The only possible incorrect connection would be when both pins 61 and 62 were inserted between the same pair of plates and this would not make an unsafe situation.
  • the flex 29 in the stem 11 is in this case a two core flex, one core of which connects with plate pair 71, 72 and the other with plate pair 73, 74.
  • this assembly is effected by first disconnecting the plug 60 from the busbar and then disconnecting each lamp arm from the chamber 13 and thereafter passing the plug 60 through the corresponding nut 26 and aperture in the side wall of the chamber aligned therewith.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Fastening Of Light Sources Or Lamp Holders (AREA)
  • Led Devices (AREA)
  • Connections By Means Of Piercing Elements, Nuts, Or Screws (AREA)
EP92301517A 1991-02-22 1992-02-24 Lustre Expired - Lifetime EP0500399B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB919103740A GB9103740D0 (en) 1991-02-22 1991-02-22 Chandelier
GB9103740 1991-02-22

Publications (2)

Publication Number Publication Date
EP0500399A1 true EP0500399A1 (fr) 1992-08-26
EP0500399B1 EP0500399B1 (fr) 1996-02-07

Family

ID=10690413

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92301517A Expired - Lifetime EP0500399B1 (fr) 1991-02-22 1992-02-24 Lustre

Country Status (4)

Country Link
EP (1) EP0500399B1 (fr)
AT (1) ATE134032T1 (fr)
DE (1) DE69208111D1 (fr)
GB (1) GB9103740D0 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2384298A (en) * 2002-01-15 2003-07-23 Wen-Chang Wu Plug and socket arrangement for connecting the arms and body of a chandelier

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191300416A (en) * 1912-01-06 1914-01-06 Wilbur Howard Fisher Improvements in Chandeliers and Lighting Fixtures.
FR2300961A1 (fr) * 1975-02-11 1976-09-10 Lampadari Di Bortoluzzi Pietro Fixation de lampe demontable
US4107770A (en) * 1974-04-11 1978-08-15 Gene W. Arant Modular chandelier with plug-in arms
FR2539215A1 (fr) * 1983-01-06 1984-07-13 Midi Moulages Plast Equipement de securite electrique pour boitier de lustre et pieces constitutives de cet equipement
FR2612004A1 (fr) * 1987-03-05 1988-09-09 Beghelli G P B Srl Systeme de connexion rapide pour lampes installees au mur ou au plafond, notamment pour tubes fluorescents

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191300416A (en) * 1912-01-06 1914-01-06 Wilbur Howard Fisher Improvements in Chandeliers and Lighting Fixtures.
US4107770A (en) * 1974-04-11 1978-08-15 Gene W. Arant Modular chandelier with plug-in arms
FR2300961A1 (fr) * 1975-02-11 1976-09-10 Lampadari Di Bortoluzzi Pietro Fixation de lampe demontable
FR2539215A1 (fr) * 1983-01-06 1984-07-13 Midi Moulages Plast Equipement de securite electrique pour boitier de lustre et pieces constitutives de cet equipement
FR2612004A1 (fr) * 1987-03-05 1988-09-09 Beghelli G P B Srl Systeme de connexion rapide pour lampes installees au mur ou au plafond, notamment pour tubes fluorescents

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2384298A (en) * 2002-01-15 2003-07-23 Wen-Chang Wu Plug and socket arrangement for connecting the arms and body of a chandelier

Also Published As

Publication number Publication date
ATE134032T1 (de) 1996-02-15
GB9103740D0 (en) 1991-04-10
EP0500399B1 (fr) 1996-02-07
DE69208111D1 (de) 1996-03-21

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