US3368184A - Socket for electric bulbs, especially for vehicle lamps - Google Patents

Socket for electric bulbs, especially for vehicle lamps Download PDF

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Publication number
US3368184A
US3368184A US553997A US55399766A US3368184A US 3368184 A US3368184 A US 3368184A US 553997 A US553997 A US 553997A US 55399766 A US55399766 A US 55399766A US 3368184 A US3368184 A US 3368184A
Authority
US
United States
Prior art keywords
socket
bushing
section
bore
top surface
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.)
Expired - Lifetime
Application number
US553997A
Other languages
English (en)
Inventor
Braun Helmut
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.)
Union Sils Van de Loo and Co GmbH
Electro Signal Lab Inc
Original Assignee
Union Sils Van de Loo and Co GmbH
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 Union Sils Van de Loo and Co GmbH filed Critical Union Sils Van de Loo and Co GmbH
Application granted granted Critical
Publication of US3368184A publication Critical patent/US3368184A/en
Anticipated expiration legal-status Critical
Assigned to ELECTRO SIGNAL LAB, INC. reassignment ELECTRO SIGNAL LAB, INC. MERGER (SEE DOCUMENT FOR DETAILS). EFFECTIVE ON 02/16/1977 DELAWARE Assignors: ELECTRO SIGNAL LAB, INC. (MERGED INTO)
Expired - Lifetime 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
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S439/00—Electrical connectors
    • Y10S439/93—Coupling part wherein contact is comprised of a wire or brush

Definitions

  • the present invention relates to a socket for electric bulbs, especially for vehicle lamps.
  • Such sockets comprise a bushing provided with a thread winding for holding the bulb; by means of said bushing the bulb is adapted to be inserted into a socket or reflector.
  • sockets which consist exclusively of a bushing of insulating materials and in which the current feeding cable is brought into direct current conducting connection with the threaded socket of the bulb Without special metallic contact elements.
  • the non-insulated end of the current feeding cable is in this instance located in a bore provided in the socket bushing and extending in the direction of the central axis of the bushing and is subsequently folded into the interior of the socket bushing.
  • FIG. 1 illustrates in section a socket according to the present invention with introduced cable.
  • FIG. 2 is a top view of the socket of FIG. 1.
  • FIG. 3 is a bottom view of the socket of FIG. 1.
  • FIG. 4 diagrammatically illustrates in section a reflector with inserted socket according to the invention.
  • FIG. 5 represents a modification over the arrangement of FIG. 4 and differs therefrom primarily in that the reflector and the socket form a single integral piece.
  • the socket with pull relief means by which the current feeding cable will be held by the threaded socket in its respective position after the bulb has been inserted. More specifically, this has been realized according to the present invention by providing the socket bushing with two passages for introducing the current feeding cable. These two passages are so arranged with regard to each other that a web or rib is formed about which the noninsulated end of the current feeding cable, i.e. the end from which the insulation has been removed, is folded and introduced into the interior of the bushing where it estab lishes the current conducting connection with the threaded socket of the bulb.
  • the passage for introducing the current feeding cable in the inner bore of the socket in such a way that the mantle of the current feeding cable will have a portion of its circumferential area in engagement with the threaded socket of the bulb.
  • the threaded socket will, when the bulb is screwed in, press itself into the mantle or cover of the current feeding cable whereby both parts will clamp and secure each other.
  • the two passages for introducing the current conducting cable are preferably arranged on that side of the socket which is located opposite to the thread winding.
  • the socket may, in a manner known per se, be produced by injection molding or pressing of any suitable insulating synthetic material. With reflector lamps and headlights there exists the possibility to produce the socket bushing and the reflector in one piece.
  • FIGS. 1, 2 and show a socket 1 having a bore 2 with a thread winding 3 for receiving the corresponding thread winding on a base 4 of an incandescent lamp 5.
  • the outer circumferential area of socket 1 has a cylindrical surface 6 for in sertion into a bore 8 in the housing of the lamp or a re- Hector 7.
  • the depth of insertion of socket or bushing 1 is limited by a collar 9 adjacent the said cylindrical surface 6.
  • Bushing or socket 1 is additionally provided with two passages 11 and 12 which extend in axial direction of said bushing and serve for introducing the current feeding cable 10. These two passages 11 and 12 are provided on that side of bushing 1 which is located opposite to the thread Winding 3.
  • the passages 11 and 12 are arranged in such a way with regard to each other that a web or rib 13 is formed in the walls of bushing 1. It is about this web 13 that the noninsulated end 14 of the current feeding cable 10, i.e. the end from which the insulation has been removed, is folded and is introduced into the bore 2 of the bushing 1.
  • the depth of the passage 11 is so selected that the current feeding cable 10 with its insulating cover will extend somewhat into bore 2.
  • the threaded base 4 will when the bulb 5 is screwed into the bushing 1, squeeze itself into the insulating cover of the current feeding cable and will thus bring about a mutual clamping and holding of the current feeding cable 10 and the threaded base 4 of bulb 5 in the socket 1.
  • the non-insulated end 14 of the current feeding cable will likewise engage the threaded base 4 and will thus establish the current conducting connection with the bulb 5.
  • FIG. 4- shows how the socket or bushing 1 with incandescent bulb 5 and the connected current feeding cable 10 is inserted into a bore 8 in the neck of a reflector 7.
  • bushing or socket 1 may be formed of a single piece with the reflector '7.
  • the bushing 1 may consist of metal or of insulating material, for instance synthetic material, and may be produced by pressing or injection molding.
  • synthetic material in this connection polystyrol may be used.
  • a socket for electric bulbs especially for vehicle lamps, which includes: a bushing having a top surface and a bottom surface and also having a bore therethrough extending from said bottom surface to said top surface and being provided with thread winding means for engaging the threaded portion of a bulb inserted into said bore, said bushing additionally being provided with a F cranked passage arranged laterally of said bore and extending from said bottom surface to said top surface, said passage having a first section open along its length toward said bore for receiving an insulation covered electric current conducting wire, said passage also comprising a second section communicating with said first section and extending to said top surface While being offset to said first section in the direction toward the outer periphery of said '3) s) bushing for receiving an exposed wire portion of an insulation covered wire introduced into said first section and permitting bending of said exposed Wire portion into said bore against that wall portion thereof which is adjacent said second section.
  • a socket according to claim 1 in which said top surface is provided with groove means leading from the outer end of said second section into said bore.
  • a socket according to claim 1 in which said first section diameter-wise extends slightly into said bore so that an insulation covered wire portion received in said first section will partially extend into said bore and be clamped fast therein by a bulb having a threaded portion inserted into said bore.
  • said thread winding means consists of a portion only of a thread winding and is provided on that side of said bore which is located opposite said passage.

Landscapes

  • Connecting Device With Holders (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
US553997A 1965-06-04 1966-05-31 Socket for electric bulbs, especially for vehicle lamps Expired - Lifetime US3368184A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEU0011782 1965-06-04

Publications (1)

Publication Number Publication Date
US3368184A true US3368184A (en) 1968-02-06

Family

ID=7567746

Family Applications (1)

Application Number Title Priority Date Filing Date
US553997A Expired - Lifetime US3368184A (en) 1965-06-04 1966-05-31 Socket for electric bulbs, especially for vehicle lamps

Country Status (6)

Country Link
US (1) US3368184A (en(2012))
BE (1) BE681908A (en(2012))
CH (1) CH452697A (en(2012))
DE (1) DE1489578C3 (en(2012))
NL (1) NL144449B (en(2012))
SE (1) SE338367B (en(2012))

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3806724A (en) * 1971-07-15 1974-04-23 T Tanner Disposable composite conductor tube for flashlight constructions
US4407553A (en) * 1980-05-12 1983-10-04 Echlin Inc. Electrical connector having threaded connection between receptacle parts
US6296529B2 (en) 1998-02-25 2001-10-02 Sumitomo Wiring Systems, Ltd. Bulb socket and connection construction of wire
US7234973B1 (en) 2006-03-23 2007-06-26 Shelly Mark E Lighting system having modified light bulb base and luminare socket for preventing the selection of an over wattage light bulb and method of forming same
US20070231577A1 (en) * 2006-03-30 2007-10-04 Basf Corporation Coatings for polycarbonate windows
US10794574B2 (en) * 2017-07-13 2020-10-06 Wintergreen Corporation Force-driven socket for light bulb

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2100984A (en) * 1935-08-21 1937-11-30 Kenneth B Cope Adapter for incandescent bulbs
DE1117748B (de) * 1960-01-13 1961-11-23 Ulo Werk M Ullmann Gluehlampenfassung, insbesondere fuer Fahrzeugleuchten

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2100984A (en) * 1935-08-21 1937-11-30 Kenneth B Cope Adapter for incandescent bulbs
DE1117748B (de) * 1960-01-13 1961-11-23 Ulo Werk M Ullmann Gluehlampenfassung, insbesondere fuer Fahrzeugleuchten

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3806724A (en) * 1971-07-15 1974-04-23 T Tanner Disposable composite conductor tube for flashlight constructions
US4407553A (en) * 1980-05-12 1983-10-04 Echlin Inc. Electrical connector having threaded connection between receptacle parts
US6296529B2 (en) 1998-02-25 2001-10-02 Sumitomo Wiring Systems, Ltd. Bulb socket and connection construction of wire
US7234973B1 (en) 2006-03-23 2007-06-26 Shelly Mark E Lighting system having modified light bulb base and luminare socket for preventing the selection of an over wattage light bulb and method of forming same
US20070231577A1 (en) * 2006-03-30 2007-10-04 Basf Corporation Coatings for polycarbonate windows
US10794574B2 (en) * 2017-07-13 2020-10-06 Wintergreen Corporation Force-driven socket for light bulb

Also Published As

Publication number Publication date
NL144449B (nl) 1974-12-16
SE338367B (en(2012)) 1971-09-06
DE1489578C3 (de) 1975-02-06
DE1489578A1 (de) 1969-09-04
DE1489578B2 (en(2012)) 1974-06-27
BE681908A (en(2012)) 1966-11-14
CH452697A (de) 1968-03-15
NL6607530A (en(2012)) 1966-12-05

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Legal Events

Date Code Title Description
AS Assignment

Owner name: ELECTRO SIGNAL LAB, INC.

Free format text: MERGER;ASSIGNOR:ELECTRO SIGNAL LAB, INC. (MERGED INTO);REEL/FRAME:005810/0650

Effective date: 19910814