US3654593A - Lamp holder - Google Patents

Lamp holder Download PDF

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Publication number
US3654593A
US3654593A US63141A US3654593DA US3654593A US 3654593 A US3654593 A US 3654593A US 63141 A US63141 A US 63141A US 3654593D A US3654593D A US 3654593DA US 3654593 A US3654593 A US 3654593A
Authority
US
United States
Prior art keywords
lamp
floor
base
receptacle
lamp socket
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
US63141A
Other languages
English (en)
Inventor
Ian Bruce Page
Alan Thompson
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.)
TE Connectivity Corp
Original Assignee
AMP Inc
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 AMP Inc filed Critical AMP Inc
Application granted granted Critical
Publication of US3654593A publication Critical patent/US3654593A/en
Anticipated expiration legal-status Critical
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
    • H01R33/46—Two-pole devices for bayonet type base

Definitions

  • ABSTRACT A base for a lamp socket, comprising a floor having an upstanding wall defining a lamp base receptacle, a portion of the wall having a slot to receive a forward part of an electrical contact, and a bridge spaced from the lamp socket receptacle supported on the floor for holding a rearward part of the electrical contact.
  • This invention relates to a base for a lamp socket and to a lamp socket incorporating such a base.
  • a base for a lamp socket comprises a floor having an upstanding wall defining a lamp socket receptacle, the wall having a slot for receiving a forward portion of an electrical contact, and a bridge spaced from the lamp socket receptacle supported on the floor for holding a rearward portion of the electrical contact.
  • walls extend laterally of the slot towards the bridge and have undercut forward corners for engaging an intermediate portion of an electrical contact.
  • the inner surface of the lamp socket receptacle wall has notches for receiving projections on a tubular lamp socket having lamp-engaging means.
  • the floor has a channel intermediate the slotted portion of the wall and the bridge for receiving a tine extending from the electrical contact so that the contact can lie close to the floor.
  • This invention includes a lamp socket comprising a base of this invention, a lamp socket received in the lamp socket receptacle and a contact, the contact having a forward part extending into the lamp socket receptacle through the slot and a rearward part passing under the bridge.
  • FIG. 1 is a top plan view of a base for a lamp socket
  • FIG. 2 is a longitudinal sectional view ofthe base of FIG. 1;
  • FIG. 3 is a side view of a contact for the base of FIG. 1, crimpcd to an end ofa wire;
  • FIG. 4 is a view as FIG. 2 of a lamp socket including a lamp.
  • the base of FIG. 1 and 2 is moulded of polypropylene and comprises an elongate floor 1 having a rounded end and a straight end. Adjacent the rounded end the floor 1 has a generally circular upstanding wall defining a lamp socket receptacle 2.
  • the outer rim of the wall is bevelled at 3.
  • a portion of the wall has circumferentially spaced apart slots 4, three shown, which extend the height of the wall.
  • Side walls 5 defining the slots 4 are extended in general parallel relation a short distance towards the straight end of of the floor 1.
  • the free end of the walls 5 remote from the wall 2 is obliquely undercut at 6, FIG. 2.
  • the floor 1 of the lamp socket receptacle 2 is dished at 7 to receive the base 23 ofa lamp 21, FIG.
  • a bridge 9 is integrally supported on the floor 1 adjacent the straight end and lies in a direction generally tangential to the wall 2.
  • the gap 10 between the underside of the bridge 9 and the floor 1 is dimensioned to engage the rearward end of an electrical contact 12, as explained below.
  • the floor 1 has a shallow closed-ended channel 11 generally parallel to the bridge 9.
  • a one piece contact 12 of FIG. 3, preferably of phosphor bronze, has rearward crimping lugs 13 for crimping connection to an end of a wire 14. Forwardly of the lugs 13 and the contact 12 has a middle portion 15, generally oblong in plan, the rearward corners 16 of which are inclined downwardly. F orwardly of the middle portion 15 the contact 12 has a medial tongue portion 17 which is first inclined upwardly out of the plane of the middle portion 15 and then so inclined that the free end 18 lies generally parallel to but above the middle portion 15.
  • the lamp socket receptacle 2 receives a generally tubular metal lamp socket 19, FIG. 4, by engagement of latching projections of the socket 19 in the recesses 8 of the wall of the receptacle 2.
  • the lamp socket 19 has J-slots in opposite side walls for receiving bayonet prongs 20 of a lamp 21. At its free end, the upper as shown in FIG. 4, the socket 19 has upstanding curved edge shields 22.
  • the lugs 13 of a contact 12 are crimpcd to the end of a wire 14 and the contact passed through the gap 10 of the bridge 9 and between the side walls 5 to enter a slot 4 until the forward comers of the middle portion 15 are received in the undercut part 6 of the respective side walls 5 and the rearward corners 16 are received in the channel 11.
  • the free end 18 of the tongue 17 then lies above the dished area 7 and the contact 12 is held in position by reception of the middle portion 15 in the undercut part 6 of the respective side walls 5, the downwardly inclined corners 16 in the channel 11 and the crimpcd lugs 13 in the gap 10 of the bridge 9.
  • the forward part 18 of a contact is electrically engaged by the base contact 23 of the lamp 21 and resiliently urged towards the floor 7.
  • the lamp socket is most advantageously used in an automotive vehicle where space is restricted or wiring runs tangential to the lamp.
  • One slot 4 the center one, may be used for a single contact to illuminate a turn indicator light or the outer slots 4 may each receive a contact for a two filament lamp used as a combined stop and rear light.
  • the bridge 9 may be arranged relative to the lamp socket receptacle 2 for receiving flag shaped contacts.
  • the tubular lamp socket 19 may have end projections passed through through-holes in the floor 7 of the lamp socket receptacle 2 and then peened to the underside.
  • a lamp assembly comprising a base, said base comprising a floor having an upstanding wall defining a lamp base receptacle, a portion of the wall having a slot to receive a forward part of an electrical contact, a bridge spaced from the lamp base receptacle supported on the floor for holding a rearward part of the electrical contact, a channel disposed in the floor between the lamp base receptacle and the bridge, a lamp socket received in the lamp base receptacle, and an electrical contact having a forward part extending through the slot in the lamp base receptacle, a rearward part disposed under the bridge, and an intermediate part having a lance received in the channel for locking the contact relative to the base.

Landscapes

  • Fastening Of Light Sources Or Lamp Holders (AREA)
US63141A 1969-09-30 1970-08-12 Lamp holder Expired - Lifetime US3654593A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB47886/69A GB1280029A (en) 1969-09-30 1969-09-30 Base for a lamp socket and lamp socket incorporating the base

Publications (1)

Publication Number Publication Date
US3654593A true US3654593A (en) 1972-04-04

Family

ID=10446606

Family Applications (1)

Application Number Title Priority Date Filing Date
US63141A Expired - Lifetime US3654593A (en) 1969-09-30 1970-08-12 Lamp holder

Country Status (8)

Country Link
US (1) US3654593A (de)
AT (1) AT302474B (de)
AU (1) AU1914870A (de)
BE (1) BE756699A (de)
DE (1) DE2045042A1 (de)
FR (1) FR2062646A5 (de)
GB (1) GB1280029A (de)
NL (1) NL7013910A (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2411537A1 (fr) * 1977-12-08 1979-07-06 Nkf Groep Bv Dispositif de connexion electrique et son procede de fabrication

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1280705A (en) * 1917-06-22 1918-10-08 William E Gardner Apparatus for signaling.
US1666974A (en) * 1924-11-14 1928-04-24 Eugene Sullivan Socket for electric lamps
GB930520A (en) * 1960-12-08 1963-07-03 Standard Telephones Cables Ltd Single unit plug-and-socket connector
US3242329A (en) * 1964-02-04 1966-03-22 Cable Electric Products Inc Illuminated vehicle display device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1280705A (en) * 1917-06-22 1918-10-08 William E Gardner Apparatus for signaling.
US1666974A (en) * 1924-11-14 1928-04-24 Eugene Sullivan Socket for electric lamps
GB930520A (en) * 1960-12-08 1963-07-03 Standard Telephones Cables Ltd Single unit plug-and-socket connector
US3242329A (en) * 1964-02-04 1966-03-22 Cable Electric Products Inc Illuminated vehicle display device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2411537A1 (fr) * 1977-12-08 1979-07-06 Nkf Groep Bv Dispositif de connexion electrique et son procede de fabrication

Also Published As

Publication number Publication date
DE2045042A1 (de) 1971-04-08
GB1280029A (en) 1972-07-05
NL7013910A (de) 1971-04-01
BE756699A (fr) 1971-03-25
AT302474B (de) 1972-09-15
FR2062646A5 (de) 1971-06-25
AU1914870A (en) 1972-03-02

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