US3864001A - Lamp socket - Google Patents

Lamp socket Download PDF

Info

Publication number
US3864001A
US3864001A US407673A US40767373A US3864001A US 3864001 A US3864001 A US 3864001A US 407673 A US407673 A US 407673A US 40767373 A US40767373 A US 40767373A US 3864001 A US3864001 A US 3864001A
Authority
US
United States
Prior art keywords
socket
lamp
plate
bent
stem
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
US407673A
Other languages
English (en)
Inventor
Jean Joseph Millet
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.)
Socop SA
S O C O P SA
Original Assignee
Socop SA
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 Socop SA filed Critical Socop SA
Application granted granted Critical
Publication of US3864001A publication Critical patent/US3864001A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • H01R33/06—Two-pole devices with two current-carrying pins, blades or analogous contacts, having their axes parallel to each other
    • H01R33/09—Two-pole devices with two current-carrying pins, blades or analogous contacts, having their axes parallel to each other for baseless lamp bulb
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q3/00—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors
    • B60Q3/10—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors for dashboards
    • B60Q3/14—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors for dashboards lighting through the surface to be illuminated

Definitions

  • ABSTRACT A lamp socket has a pair of diametrally opposed grooves leading to notches towards the open end thereof. Each groove receives a folded over contact strip adapted to receive the flat shank of a miniature lamp, the free ends of the strips protruding outwardly through the notches and serving as bayonets to grip and make contact with a circuit-carrying plate.
  • the invention relates to lamp holders and is particularly concerned with a socket for a miniature lamp having a flat stem.
  • lamp sockets there are numerous types, in particular intended to be mounted on the instrument panels of motor vehicles or aircraft.
  • the necessity of rapid visual control for achieving the correct operation of engines compels the designers to place several indicator lights in a restricted space, each indicator light having to be able to light up or go out according to various requirements.
  • a socket for mounting a miniature lamp having a flat stem the socket being adapted to be mounted in an aperture of a thin plate having diametrally opposed electrical con ductors at the periphery of the aperture on at least one side of the plate, the socket being electrically connected to the conductors by contact means which detachably mount the lamp and electrically connect the conductors on the lamp stem to the plate conductors, said contact means comprising two pairs of resilient contacts each pair being formed by a spring strip folded into the general configuration of a flattened V having sides and free end parts, the sides of each V being located in a peripheral recess in the socket and the free end parts of each V being bent externally of the socket to form a bayonet for gripping the plate and making electrical connection with a plate conductor.
  • the main advantage achieved by the invention re sides in the gripping action on the plate, on either side of the latter, obtained by the bayonets formed by the two bent ends of each pair of electric contacts, thus, these bayonets ensure the electrical contact by either side of the plate carrying the circuits.
  • This gripping is effective to such an extent that the socket thus produced may be used on a flexible plate with complete reliability of the electrical connections.
  • Another advantage resides in the simplicity of manufacture of the electric contacts which may be obtained by a single cutting operation followed by several shaping and folding operations.
  • the mounting of the resilient contacts in the socket is extremely simple, since it is sufficient to push them into peripheral slots or grooves in the socket, and having a resilient tab of each contact bearing against the upper edge of the corresponding grooves to block the contact in the appropriate position.
  • Another advantage of the resilient contact resides in the presence, on the inner part, of the V, of two inwardly folded lateral tongues which bear against internal ribs on the socket and prevent any lateral displacement of the contact, particularly in the vicinity of the bent part forming the upper member of the bayonet ensuring the electrical contact with the plate supporting the circuits.
  • the same part of the V comprises two thin plates bent perpendicularly to the side, which elastically grip one of the flat sides of the stem of the lamp with its conductor, ensuring the electrical connection between the circuits and the lamp. Said connection is thus made independently of the fre quently irregular shape of the stems of miniature lamps, owing to the accentuated convexity of said tongues and to their great elasticity.
  • FIG. 1 is a diagrammatic sectional view of the lamp socket with a lamp engaged therein;
  • FIG. 2 is a sectional view ofthe socket with a resilient contact showing the bayonet gripping of the plate for supporting the electric circuits;
  • FIG. 3 is a side elevational view of the socket
  • FIG. 4 is a top plan view of the socket showing the location of a resilient contact
  • FIG. 5 shows a resilient contact before folding
  • FIG. 6 is a side elevational view of a contact folded into a V-shape.
  • FIG. 7 is a plan view of the contact, looking from above FIG. 6.
  • FIGS. 1 to 4 show the socket fitted with only one of the two symmetrical contacts.
  • FIGS. 5 to 7 illustrate a resilient contact able to be mounted in either of the symmetrical diametrically opposed grooves in the socket.
  • the socket 1 for a miniature'lamp is formed of an insulating material and is hollow.
  • the socket 1 comprises a collar 2 extending outwardly from a substantically cylindrical part 3 between the ends of this part, and supports two identical resilient contacts 9, 10 arranged symmetrically inside the socket 1, intended to ensure the electrical connection between a lamp and circuits supported by a plate A.
  • Part 3 has two diametrally opposed notches or cutouts 4,5 extending from one end of this part to the collar 2.
  • cavity 6 of the socket l are two corresponding bayonet slots for'fixingsocket l by a turning movement.
  • Two lateral tongues 12,- symmetrical with respect to the longitudinal axis of the contact 9, are folded inwards so as to form lugs for locating the contact 9, 10 in the cavity 6 of the socket l, the tongues l2'bearing against an internal rib 17, 18 in the socket such that there is no corresponding movement of the lower part of the inner side of the contact 9, 10, when the bent part 11 is resiliently displaced.
  • a rib 14 stamped between these thin plates 13, serves to strengthen said inner side and of the contact and to guide the lamp stem.
  • the outer side 16 of the contact is folded such that the V it forms with the inner side 11 acts both to hold a lamp in the cavity 6 and to grip the plate A and the electric circuits thereon.
  • the bayonet ensuring the electrical contact with the circuits is formed by the superposition of the two bent ends 11, 16 of the two sides folded over onto each other.
  • a resilient lug 15 cut out and bent outwardly from the outer side of the contact ensures the positioning of the contact 9, 10 in the groove 7, 8 of the socket by abutting against the top of said groove.
  • the bent end 16 of the contact rests in a notch in the collar 2, being retained in said notch by its curved shape and by the 4 gripping surfaces, without in any way compromising the efficiency of the socket.
  • the simplicity of the resilient contacts and their reduced bulk make it possible to produce a socket for a lamp with a quadrangular stem having two different filaments.
  • Miniature lampholder comprising a socket for mounting a miniature lamp having a stem. means on the socket for mounting it in an aperture ofa plate. and at least two contact means for detachably mounting the lamp in the aperture and electrically connecting conductors on the lamp stem to plate conductors.
  • each contact means comprising a spring strip folded into the general configuration ofa flattened V having inner and outer sides and free end parts thereof, the sides of each V being located in a peripheral recess in the socket and the free end parts being bent externally of the recess to form a bayonet for gripping the plate and making electrical connection with a plate conductor.
  • the socket has, at an upper, open part for receiving the stem of the lamp, a cylindrical part including two diametrically opposed cut-outs and a collar at which said cut-outs terminate, the outwardly bent end of each resilient strip extending through said cut-outs and the bent end of each outer side bearing against the collar such that the socket introduced into the aperture in the plate bears by the collar of the socket, through the end of the outer side, against one of the sides of the plate.
  • each inner side of the resilient strip comprises, below the outwardly-bent end, two inwardly-folded lateral tongues, the socket having longitudinal grooves therein for guiding said tongues against the inner edges of said grooves to prevent movement of the lower part of inner sides of said contacts corresponding to resilient displacement of said bent ends.
  • each resilient strip includes two thin plates bent perpendicularly to the plane of the side to a convex shape adapted to resiliently grip one of the flat sides of the stern of a lamp with its conductor, and a rib between said thin plates reinforcing said side.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Connecting Device With Holders (AREA)
  • Fastening Of Light Sources Or Lamp Holders (AREA)
US407673A 1972-11-03 1973-10-18 Lamp socket Expired - Lifetime US3864001A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7239059A FR2206033A5 (enrdf_load_stackoverflow) 1972-11-03 1972-11-03

Publications (1)

Publication Number Publication Date
US3864001A true US3864001A (en) 1975-02-04

Family

ID=9106629

Family Applications (1)

Application Number Title Priority Date Filing Date
US407673A Expired - Lifetime US3864001A (en) 1972-11-03 1973-10-18 Lamp socket

Country Status (4)

Country Link
US (1) US3864001A (enrdf_load_stackoverflow)
FR (1) FR2206033A5 (enrdf_load_stackoverflow)
GB (1) GB1406767A (enrdf_load_stackoverflow)
IT (1) IT990961B (enrdf_load_stackoverflow)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2427710A1 (fr) * 1978-06-01 1979-12-28 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Voyant lumineux destine a etre monte dans une plaquette a circuit imprime
US4214292A (en) * 1978-11-30 1980-07-22 Sperry Corporation Printed circuit board guide spring
EP0075304A1 (de) * 1981-09-21 1983-03-30 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Anzeigeleuchte
JPS6075989U (ja) * 1983-10-31 1985-05-28 東芝ライテック株式会社 無口金電球用ソケツト
US4593958A (en) * 1984-05-04 1986-06-10 Kabushiki Kaisha Toshiba Socket for baseless lamp
JPH01165515U (enrdf_load_stackoverflow) * 1988-05-12 1989-11-20
US4934951A (en) * 1987-09-04 1990-06-19 Paul Albrecht Holder for small incandescent light bulbs
USD317590S (en) 1987-02-26 1991-06-18 Koito Manufacturing Co., Ltd. Automobile bulb socket
US5078625A (en) * 1989-06-20 1992-01-07 Stanley Electric Co., Ltd. Wedge base socket attached to spg substrate
JPH0461887U (enrdf_load_stackoverflow) * 1990-10-04 1992-05-27
US20050030743A1 (en) * 2003-07-14 2005-02-10 Harison Toshiba Lighting Corporation Socket device
US20050196997A1 (en) * 2003-07-14 2005-09-08 Harison Toshiba Lighting Corporation Socket device
US20050277314A1 (en) * 2004-06-15 2005-12-15 Nifco Inc. Conductive clip
CN104713044A (zh) * 2013-12-17 2015-06-17 欧司朗有限公司 电连接装置及包括该电连接装置的照明装置
US20170077634A1 (en) * 2015-09-14 2017-03-16 Erich Jaeger Gmbh & Co. Kg Flat Terminal and Socket for Electrical Plug-and-Socket Connection
CN119175243A (zh) * 2024-11-22 2024-12-24 佛山市质量和标准化研究院(佛山市特种设备能效测试研究院、佛山市品牌发展研究院) 一种实验室筐子清洗烘干机

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1063126B (it) * 1976-07-23 1985-02-11 Borletti Spa Portalampada per lampadine tutto vetro particolarmente per strumenti indicatori e di controllo di autoveicoli
DE7820251U1 (de) * 1978-07-06 1979-12-13 Patent-Treuhand-Gesellschaft Fuer Elektrische Gluehlampen Mbh, 8000 Muenchen Fassung für Glassockellampen
DE3061974D1 (en) * 1979-04-28 1983-03-24 Lucas Ind Plc Mounting of filament assemblies in lamp units

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2595188A (en) * 1949-05-07 1952-04-29 Cinch Mfg Corp Tube socket
US3017599A (en) * 1960-01-05 1962-01-16 Gen Motors Corp Lamp socket
US3344389A (en) * 1965-04-05 1967-09-26 United Carr Inc Lampholder

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2595188A (en) * 1949-05-07 1952-04-29 Cinch Mfg Corp Tube socket
US3017599A (en) * 1960-01-05 1962-01-16 Gen Motors Corp Lamp socket
US3344389A (en) * 1965-04-05 1967-09-26 United Carr Inc Lampholder

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2427710A1 (fr) * 1978-06-01 1979-12-28 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Voyant lumineux destine a etre monte dans une plaquette a circuit imprime
US4214292A (en) * 1978-11-30 1980-07-22 Sperry Corporation Printed circuit board guide spring
EP0075304A1 (de) * 1981-09-21 1983-03-30 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Anzeigeleuchte
JPS6075989U (ja) * 1983-10-31 1985-05-28 東芝ライテック株式会社 無口金電球用ソケツト
US4593958A (en) * 1984-05-04 1986-06-10 Kabushiki Kaisha Toshiba Socket for baseless lamp
USD317590S (en) 1987-02-26 1991-06-18 Koito Manufacturing Co., Ltd. Automobile bulb socket
US4934951A (en) * 1987-09-04 1990-06-19 Paul Albrecht Holder for small incandescent light bulbs
JPH01165515U (enrdf_load_stackoverflow) * 1988-05-12 1989-11-20
US5078625A (en) * 1989-06-20 1992-01-07 Stanley Electric Co., Ltd. Wedge base socket attached to spg substrate
JPH0461887U (enrdf_load_stackoverflow) * 1990-10-04 1992-05-27
US20050030743A1 (en) * 2003-07-14 2005-02-10 Harison Toshiba Lighting Corporation Socket device
US20050196997A1 (en) * 2003-07-14 2005-09-08 Harison Toshiba Lighting Corporation Socket device
US7037132B2 (en) * 2003-07-14 2006-05-02 Harison Toshiba Lighting Corp. Socket device
US20050277314A1 (en) * 2004-06-15 2005-12-15 Nifco Inc. Conductive clip
US7008242B2 (en) * 2004-06-15 2006-03-07 Nifco Inc. Conductive clip
CN104713044A (zh) * 2013-12-17 2015-06-17 欧司朗有限公司 电连接装置及包括该电连接装置的照明装置
CN104713044B (zh) * 2013-12-17 2020-05-19 朗德万斯公司 电连接装置及包括该电连接装置的照明装置
US20170077634A1 (en) * 2015-09-14 2017-03-16 Erich Jaeger Gmbh & Co. Kg Flat Terminal and Socket for Electrical Plug-and-Socket Connection
US9917389B2 (en) * 2015-09-14 2018-03-13 Erich Jaeger Gmbh & Co. Kg Flat terminal and socket for electrical plug-and-socket connection
CN119175243A (zh) * 2024-11-22 2024-12-24 佛山市质量和标准化研究院(佛山市特种设备能效测试研究院、佛山市品牌发展研究院) 一种实验室筐子清洗烘干机

Also Published As

Publication number Publication date
DE2352597A1 (de) 1974-05-16
DE2352597B2 (de) 1976-12-02
IT990961B (it) 1975-07-10
FR2206033A5 (enrdf_load_stackoverflow) 1974-05-31
GB1406767A (en) 1975-09-17

Similar Documents

Publication Publication Date Title
US3864001A (en) Lamp socket
US3017599A (en) Lamp socket
US2636069A (en) Pin-tap lamp socket
US2884609A (en) Lamp socket with panel mounting
US3544950A (en) Lamp socket and printed circuit
US3050705A (en) Electrical assembly
US3253249A (en) Bulb socket for panel mounting
US2813158A (en) Rotary switch with quick-connect terminals
US3950061A (en) Socket for wedge base lamp
US3116098A (en) Fluorescent lamp holder
US3093768A (en) Electric lamp base end structure
US2160786A (en) Tubular lamp base
EP0023717B1 (en) Socket for capless incandescent lamp
US2229962A (en) Lamp base and socket
US2017940A (en) Socket for vacuum tubes and the like
US2296632A (en) Connector
US2615950A (en) Electric terminal connector
GB2053440A (en) Vehicle light cluster
US3614713A (en) Electric lampholder
US2689945A (en) Ceiling lamp adapter
US3286218A (en) Electric incandescent lamps
US2647248A (en) Socket-type contact
US3601778A (en) Lamp socket
US2688690A (en) Fluorescent lighting unit
GB2025162A (en) Lamp holder