EP0929132A2 - Une douille de lampe avec un blocage rapide du câble - Google Patents

Une douille de lampe avec un blocage rapide du câble Download PDF

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Publication number
EP0929132A2
EP0929132A2 EP98204276A EP98204276A EP0929132A2 EP 0929132 A2 EP0929132 A2 EP 0929132A2 EP 98204276 A EP98204276 A EP 98204276A EP 98204276 A EP98204276 A EP 98204276A EP 0929132 A2 EP0929132 A2 EP 0929132A2
Authority
EP
European Patent Office
Prior art keywords
lamp holder
cap
cable
couple
jaw element
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Withdrawn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
EP98204276A
Other languages
German (de)
English (en)
Other versions
EP0929132A3 (fr
Inventor
Marco Ferrari
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.)
VLM SpA
Original Assignee
VLM SpA
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 VLM SpA filed Critical VLM SpA
Publication of EP0929132A2 publication Critical patent/EP0929132A2/fr
Publication of EP0929132A3 publication Critical patent/EP0929132A3/fr
Withdrawn legal-status Critical Current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
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/58—Means for relieving strain on wire connection, e.g. cord grip, for avoiding loosening of connections between wires and terminals within a coupling device terminating a cable
    • H01R13/582—Means for relieving strain on wire connection, e.g. cord grip, for avoiding loosening of connections between wires and terminals within a coupling device terminating a cable the cable being clamped between assembled parts of the housing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R33/00—Coupling devices specially adapted for supporting apparatus and having one part acting as a holder providing support and electrical connection via a counterpart which is structurally associated with the apparatus, e.g. lamp holders; Separate parts thereof
    • H01R33/05—Two-pole devices
    • H01R33/22—Two-pole devices for screw type base, e.g. for lamp

Definitions

  • the present invention refers to a cable fast locking lamp holder.
  • the cable locking to the lamp holder is achieved by means of additional ring elements which, besides being an additional item, have to be inserted at the right time during assembly, otherwise the whole lamp holder has to be disassembled and all the operations have to be repeated.
  • a lamp holder is provided with a cap which can have a more or less tubular outward extension, centrally positioned, with an even surface or provided with outer toothings suitable to lock said cap to a support made of plastic, ceramic, metal or wood material.
  • a cap which can have a more or less tubular outward extension, centrally positioned, with an even surface or provided with outer toothings suitable to lock said cap to a support made of plastic, ceramic, metal or wood material.
  • lamp holders provided with said tubular extension have been realised, and additional locking means, besides outer locking means in a hole of a wooden support, have been realised in said tubular extension in order to lock the through cable.
  • the locking is realised when the extension, containing the cable, is inserted into the hole formed in the wooden support, which is the base of the lamp.
  • such a disposition can not be used for the positioning inside a support made of plastic, ceramic or metal material, wherein, for instance, the locking is realised by means of a locking ring or washer, placed below the positioning hole, on the other side of the lamp holder extension, which, in this case, is smooth.
  • a purpose of the present invention is to realise a lamp holder having a cable fast locking means which could allow an adjustable locking, and which will, at the same time, guarantee an optimum insulation and will not require additional outer locking and fixing elements.
  • Another purpose is to eliminate, as far as possible, additional elements to the lamp holder, as for instance rings, ring nuts, etc., which allow the steady positioning of the cable, but which will be uncomfortable to be used by the operator.
  • a further purpose is to realise a lamp holder having a cable fast locking means which allows the use of lamp holder bodies either smooth, or threaded, or provided, as well as not provided, with tubular extension for the positioning in wood, plastic, ceramic or metal materials, without adding new items to the lamp holder in order to lock the cable.
  • a lamp holder having a cable fast locking means said lamp holder comprises a bell shaped lamp holder body, made of a plastic insulating material of any kind, said body comprises a screw coupling for a lamp, and a rear closed portion, wherein there are provided clamps, contacts and holes in which electric wires are inserted, and a cap, made of a plastic insulating material, and provided with a central hole, in said body the closed rear portion has a fast locking device for the cap, said device is formed by a couple of channel shaped housings obtained in the body and suitable to receive a couple of extensions of the cap in order to steadily position and lock the lamp holder, characterised in that said cap is partially hollow and has, inside, locking means on a through cable which gathers said electric wires, said engagement means steadily locking the cable only when said couple of extensions of said cap are firmly engaged into said couple of channel shaped housings of said body of said lamp holder.
  • FIG. 1-4 there is substantially shown a lamp holder body with a cable fast locking means, said lamp holder is internally provided with a cable fast locking device according to the present invention.
  • a lamp holder body 10 of the hollow type with a bell shape, comprises a screw coupling 12 for positioning a lamp (not shown), and in a rear closed portion 11 thereof, there are provided holes 13 wherein wires are inserted, indicated by 14, which are part of a cable 15.
  • the outer body 10 can be threaded or smooth or half threaded and half smooth.
  • the body 11 provides a fast locking device for a cap, indicated by 16.
  • Said device is formed by a couple of channel shaped housings 17, obtained in the body 10, suitable to receive a couple of extensions 18 provided in the cap 16 itself. It is obvious that both the body and the cap which form the lamp holder are made of a plastic insulating material.
  • the channel shaped housings 17 are formed along outer generating lines of the body 10, in the shown example, but they can also be formed inside the body itself, without changing anything.
  • the extensions 18 extend from the outer diameter of the cap 16 and are provided with hooks 19 curved towards the inside for the engagement within the channel shaped housings 17 below the rear closed portion 11 of the body 10.
  • the extensions could extend from the inner area of the cap and be provided with hooks curved towards the outside for the engagement within closed channels below the rear closed portion 11 of the body 10.
  • the rear closed portion 11 providing the holes 13 in which the wires 14 are inserted in order to provide the engagement with the clamps-couplings, is formed by a side couple of box-like elements 20 having a column shape (only one of said elements is shown with a full line while the other is shown with a dash and dot line).
  • the column elements 20 are positioned along the radial direction, forming a 90° angle with the channel shaped housings 17. These box-like column elements 20 have a prismatic shape and they are provided with radial cavities 21 on the outer side for engaging the projections 22 formed in the curved and shaped tabs 23 which extend from the cap 16 and which are positioned between a portion of an outer thin wall 24 of the body 10 and said columns 20.
  • Each column 20 has a couple of surfaces 31 (figure 1) parallel to a radial and axial direction thereof, which extend well inside the body 10 of the lamp holder.
  • a second flexible jaw element, indicated by 27, faces the first jaw element 26, said second jaw element partially holds and contains sideways the first element 26 and has a portion with a U-shaped cross section.
  • This second jaw element 27 has the same height as the first element 26 in the U-shaped portion.
  • Said second element is positioned, at one of its ends, into a cavity 28, which is also U-shaped, of the base wall 25 into a cavity 28 of the cap 16 and said element is fixed to said base wall 25 just along a central portion 29 of the U-shaped jaw element.
  • a couple of arms 30, which are cam shaped so as to form a tip, extend from the upper ends of said U-shaped portion of the second jaw element, said ends being directed towards the inner portion of the cap 16.
  • These arms 30 are capable of engaging, in a sliding manner, with one of the corresponding surfaces 31 of the columns 20 (indicated by a dash and dot line in figure 1) so as to cause the bending and the movement of the U-shaped portion of the second jaw element 27 towards the first C-shaped jaw element 26. Said movement is such that the C-shaped section is enclosed inside the U-shaped section thus steadily clamping the cable 15 which passes through said sections.
  • both the jaw elements 26 and 27 form engagement means which steadily lock the through cable 15 by engaging the arms 30 with the surfaces 31.
  • This engagement means simultaneously act with the firm engagement of the couple of extensions 18 of the cap 16 into the couple of channel shaped housings 17 of the lamp holder body 10.
  • both the jaw elements 26 and 27 can be internally provided with toothings 35 on facing surfaces.
  • Such a lamp holder embodiment can only be valid for a cap and a body having flat bases.
  • such a totally new disposition can comprise not only the caps 16 with a flat base, but also caps provided, in the rear closed portion of the base wall 25, with a more or less tubular extension 32, directed towards the outside.
  • This tubular extension 32 is centrally positioned in the base wall 25, said extension can be smooth or provided with toothings on its outer portion and it is generally suitable to be fixed to a plastic, ceramic, metallic or wooden support, within a corresponding hole or opening (not shown).
  • the tubular extension 32 is inserted into the through hole 33 in the base wall 25 so as to be aligned and to extend inside the cap 16 within the two jaw elements 26 and 27.
  • the cable 15, inserted inside the tubular extension 32, will then be able to be placed and to freely slide between the two jaw elements 26 and 27, which are still apart and just facing each other.
  • the cap 16 will be freely inserted into the hole or the opening of a support (not shown) by inserting said tubular extension 32, wherein the cap 16 will be locked either through the forced engagement of toothings 34 formed on its outer surface of the extension 32, or through a washer (not shown) placed on the other side of the support opening in order to steadily lock the outer surface of the extension 32.
  • tubular appendices can be added to said lamp holder for additional specific uses, without any modification.

Landscapes

  • Connecting Device With Holders (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Fastening Of Light Sources Or Lamp Holders (AREA)
EP98204276A 1998-01-08 1998-12-16 Une douille de lampe avec un blocage rapide du câble Withdrawn EP0929132A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI980005U 1998-01-08
ITMI980005 IT243709Y1 (it) 1998-01-08 1998-01-08 Portalampada a bloccaggio rapido del cavo

Publications (2)

Publication Number Publication Date
EP0929132A2 true EP0929132A2 (fr) 1999-07-14
EP0929132A3 EP0929132A3 (fr) 2000-07-05

Family

ID=11378493

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98204276A Withdrawn EP0929132A3 (fr) 1998-01-08 1998-12-16 Une douille de lampe avec un blocage rapide du câble

Country Status (2)

Country Link
EP (1) EP0929132A3 (fr)
IT (1) IT243709Y1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1239555A2 (fr) * 2001-03-09 2002-09-11 Pagnutti Bruna, Luce di Standardisation de douilles pour lampes du type Edison
EP1199514A3 (fr) * 2000-10-20 2003-02-26 ARDITI S.p.A. Porte-lampe ayant un dispositif de fixation rapide pour le câble d'alimentation électrique
US6808292B2 (en) 2003-01-13 2004-10-26 Bun Wong Lamp holder
WO2007121712A1 (fr) * 2006-04-20 2007-11-01 Bjb Gmbh & Co. Kg Élément de raccordement électrique
EP2363924A1 (fr) * 2010-03-01 2011-09-07 Marlafin AG Dispositif de connexion d'un câble avec un composant électrique installé dans un boîtier

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3813233A1 (de) * 1987-04-24 1988-12-15 Murjahn Kg Vlm Gluehlampenfassung
EP0451126A1 (fr) * 1990-04-03 1991-10-09 Artilux Ab Pince pour cordon d'un porte-lampe
GB2245776A (en) * 1990-05-18 1992-01-08 Ranton & Co Ltd Lamp holders
FR2725842A3 (fr) * 1994-10-13 1996-04-19 Vlm Spa Douille de lampe a montage automatique rapide
EP0790459A2 (fr) * 1996-02-19 1997-08-20 ARDITI S.p.A. Serre-câble pour douille ayant un support formé d'un tube ou d'une tige, préfigurant un assemblage très aisé

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3813233A1 (de) * 1987-04-24 1988-12-15 Murjahn Kg Vlm Gluehlampenfassung
EP0451126A1 (fr) * 1990-04-03 1991-10-09 Artilux Ab Pince pour cordon d'un porte-lampe
GB2245776A (en) * 1990-05-18 1992-01-08 Ranton & Co Ltd Lamp holders
FR2725842A3 (fr) * 1994-10-13 1996-04-19 Vlm Spa Douille de lampe a montage automatique rapide
EP0790459A2 (fr) * 1996-02-19 1997-08-20 ARDITI S.p.A. Serre-câble pour douille ayant un support formé d'un tube ou d'une tige, préfigurant un assemblage très aisé

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1199514A3 (fr) * 2000-10-20 2003-02-26 ARDITI S.p.A. Porte-lampe ayant un dispositif de fixation rapide pour le câble d'alimentation électrique
EP1239555A2 (fr) * 2001-03-09 2002-09-11 Pagnutti Bruna, Luce di Standardisation de douilles pour lampes du type Edison
EP1239555A3 (fr) * 2001-03-09 2004-03-10 Pagnutti Bruna, Luce di Standardisation de douilles pour lampes du type Edison
US6808292B2 (en) 2003-01-13 2004-10-26 Bun Wong Lamp holder
WO2007121712A1 (fr) * 2006-04-20 2007-11-01 Bjb Gmbh & Co. Kg Élément de raccordement électrique
EP2363924A1 (fr) * 2010-03-01 2011-09-07 Marlafin AG Dispositif de connexion d'un câble avec un composant électrique installé dans un boîtier
WO2011107412A1 (fr) * 2010-03-01 2011-09-09 Marlafin Ag Dispositif permettant de connecter un câble à un composant électrique disposé dans un logement
US8758042B2 (en) 2010-03-01 2014-06-24 Marlafin Ag Device for connecting a cable to an electric component arranged in a housing

Also Published As

Publication number Publication date
ITMI980005U1 (it) 1999-07-08
EP0929132A3 (fr) 2000-07-05
IT243709Y1 (it) 2002-03-06

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