US2623088A - Lamp holder for tubular electric lamps with axially projecting contacts - Google Patents

Lamp holder for tubular electric lamps with axially projecting contacts Download PDF

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Publication number
US2623088A
US2623088A US22458A US2245848A US2623088A US 2623088 A US2623088 A US 2623088A US 22458 A US22458 A US 22458A US 2245848 A US2245848 A US 2245848A US 2623088 A US2623088 A US 2623088A
Authority
US
United States
Prior art keywords
housing
support
carrier
lamp holder
holder
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
US22458A
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English (en)
Inventor
Axberg Gunnar Fridolf
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.)
Auralight AB
Original Assignee
Lumalampan AB
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 Lumalampan AB filed Critical Lumalampan AB
Application granted granted Critical
Publication of US2623088A publication Critical patent/US2623088A/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
    • H01R33/06—Two-pole devices with two current-carrying pins, blades or analogous contacts, having their axes parallel to each other
    • H01R33/08—Two-pole devices with two current-carrying pins, blades or analogous contacts, having their axes parallel to each other for supporting tubular fluorescent lamp
    • H01R33/0836—Two-pole devices with two current-carrying pins, blades or analogous contacts, having their axes parallel to each other for supporting tubular fluorescent lamp characterised by the lamp holding means
    • H01R33/0854—Two-pole devices with two current-carrying pins, blades or analogous contacts, having their axes parallel to each other for supporting tubular fluorescent lamp characterised by the lamp holding means with lamp rotating means

Definitions

  • This invention relates to a lamp holder for tubular electric lamps with axially projecting contact prongs.
  • the object of the invention is to provide a holder construction the separate elements of which are easily assembled and interlocking themselves without any further locking or fastening means thus bringing about a simplified manner to manufacture such devices.
  • two oppositely disposed spring contact members are mounted on a carrier in an insulating housing moulded into an integral piece and forming a cavity.
  • a rotatable support for the tube prongs or the like is mounted between the contact springs in the housing.
  • the support is provided with a transverse groove and one edge of the housing is provided with an entrance groove to guide the prongs into the open circuit position.
  • the this support is inserted through a circular opening in a face of the housing and provided with end flanges of which the outer flange is adapted to fill in the opening of the housing.
  • the waist portion of the support has a length equal to the width of the contact springs to prevent axial displacement of the support.
  • the support being pivo-tally supported within the opening of the housing thus serves as sole implement to interlock the housing and the inserted contact spring carrier in cooperation with these springs anchored into the carrier.
  • Fig. 1 is a front view in section of a lamp holder embodying one form of the invention, the support being shown in the open circuit position.
  • Fig. 2 is a part of a further front view showing the support in the closed circuit position.
  • Fig. 3 is a longitudinal sectional view, the support being shown in the position for the lamp base insertion.
  • Fig. 4 is an end view of the lamp holder.
  • Fig. 5 is a perspective view of the holder housing.
  • Fig. 6 is a perspective view of the contact spring carrier with the contact springs anchored in recesses into the carrier.
  • Fig. 7 is a perspective view of the support.
  • Fig. 8 is a longitudinal sectional view showing the lamp holder partially assembled and the mode of assembly.
  • the housing 8 has a widened base section 24 at the side facing the lamp and is moulded of insulating material into an integral piece. Inside of the housing is a cavity or chamber 9 open at the base of the housing. Through this base opening I is inserted a. carrier body 2 moulded of insulating material and supporting invention two contact spring members [0, Iii.
  • Two projections 6, 6 are disposed on the carrier 2 resting against suitable projections 25, 25 formed into the widened base part 24 of the housing.
  • the latter projections are provided with downward openings 23, 23 for screws to fasten the lamp holder on the lamp fitting or the like.
  • Each spring contact member It] consists of a metal strip the foot end of which is rolled up into a tubular sleeve 4 and through the sleeve wall is threaded a clamp screw 3 for fastening a lead-in wire.
  • the contact springs til, Hi are anchored in recesses I, 1 into the carrier body, said recesses being formed adequately to the shape of said end portions of the strips and opened downwards for the clamping of the screws 3, 3.
  • the carrier body forms a boss portion 28 which separates the two springs.
  • the base part of the housing is provided with two "knock outs 22, 22 for enabling supply conductors to be inserted from the front or the back end of the holder, the bottom of the carrier body 2 being provided with a groove 5 for the conductors inserted from the back of the holder.
  • the supporting member 29 has two end flanges I5, 28 of which the outer one 28 is rotatably mounted in a circular opening 21 in the front of the housing 8.
  • the length of the waist portion 14 of the support is equal to the width of the spring contact strips it, Ill whereby the axial displacement of the support 29 when introduced through the opening 21 and mounted between the contact springs It, In is prevented.
  • the width of the spring contact carrier 2 corresponds to the inner Width of the main portion of the housing 8 and is thereby securely rested within the housing.
  • the waist portion M of the support 29 is provided with conventional projections I 2, I2 oppositely disposed and the contact springs are provided with corresponding pocket portions [3, [3.
  • the support thus will serve as a suitable implement to interlock the housing and the carrier body by means of the contact springs anchored into the carrier.
  • the sup-port is introduced through the front opening of the housing and the carrier is inserted into the base opening of the cavity of the housing.
  • the front part of the support 29 is provided with a conventional groove [3 in a plane intersecting that of its projections l2, l2 and adapted to receive the prongs I l, l i of the lamp tube it or other device which is supported by the holder.
  • the housing is provided too with a conventional entrance groove i! leading to the groove in the rotatable support.
  • Fig. l the lamp tube is shown with its contact prongs l I, l I inserted before rotating of the tube and the support; the projections of the support are clamped by the contact springs and rested in their pocket portions.
  • Fig. 2 the tube is shown as when rotated and the contact spring pockets gripping the prongs of the tube. In all positions the contact springs will prevent the axial displacement of the support.
  • a rear wall prolongation 2! of the carrier body 2 may be provided as shown in Figs. 1 and 3. This wall 2
  • the inner flange it of the support can be provided with a cylindrical boss 38 adapted to be supported in a corresponding recess 3
  • the lamp holder of this invention is assembled by partially inserting the support 29 into the housing 8 through the aperture 2'! with the flang i5 of-the holder 29 positioned within the interior of the housing 8. At this time the carrier 2 is inserted lengthwise into the housing with the spring contact fingers i6 engaging the flange E5 on the support 29. The carrier 2 is moved inwardly of the housing 8 until the aperture is in the rear wall 2
  • the contact fingers it will embrace the flange l5 of the support 29 and such support may be moved axially until the boss 30 is disposed in the recess 3
  • suitable jigs and fixtures may be utilized in the assembly operation, but such jigs or fixtures are not necessary since the parts may be assembled by purely hand manipulative operations.
  • a holder for tubular electric lamps with axially projecting contact prongs comprising a one-piece elongated hollow housing open at one end, a carrier disposed in said housing, resilient elongated contacts secured to said carrier within said housing and terminating adjacent the end opposite said open end, a substantially circular aperture in one wall of said housing, said carrier having a portion extending along an opposite wall of said housing toward the end opposite said open end, a substantially circular aperture in said portion of said carrier and in axial alignment with said first-mentioned aperture, a slot in the end Wall of said housing opposite said open end and communicating with said apertures, a lamp supporting member having flanges adjacent opposite ends rotatably mounted in said apertures and a reduced intermediate portion formed by said flanges, a recess formed in the wall of said holder opposite said first mentioned aperture, the flange at one end of said supporting member having a cylindrical boss rotatably mounted in said recess, a diametrically disposed groove in the opposite end portion of said supporting member for receiving said
  • a holder for tubular electric lamps with axially projecting contact prongs comprising a onepiece elongated hollow housing open at one end, a carrier disposed in said housing, resilient elongated contacts secured to said carrier within said housing and terminating adjacent the end opposite said open end, a substantially circular aperture in one wall of said housing, said carrier having a portion extending along an opposite wall of said housing toward the end opposite said open end, a substantially circular aperture in said portion of said carrier and in axial alignment with said first-mentioned aperture, a slot in the end wall of said housing opposite said open end and communicating with said apertures, a lamp supporting member having flanges adjacent opposite ends rotatably mounted in said apertures and a reduced intermediate portion formed by said flanges, a diametrically disposed groove in one end portion of said supporting member for receiving said prongs, said contacts partially embracing said reduced intermediate portion between said end fianges, the engagement between said housing, carrier, and supporting member serving to retain the holder in assembled relationship.

Landscapes

  • Fastening Of Light Sources Or Lamp Holders (AREA)
  • Connecting Device With Holders (AREA)
US22458A 1948-03-16 1948-04-21 Lamp holder for tubular electric lamps with axially projecting contacts Expired - Lifetime US2623088A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NO2623088X 1948-03-16

Publications (1)

Publication Number Publication Date
US2623088A true US2623088A (en) 1952-12-23

Family

ID=19915123

Family Applications (1)

Application Number Title Priority Date Filing Date
US22458A Expired - Lifetime US2623088A (en) 1948-03-16 1948-04-21 Lamp holder for tubular electric lamps with axially projecting contacts

Country Status (3)

Country Link
US (1) US2623088A (de)
CH (1) CH266505A (de)
DE (1) DE942100C (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5688139A (en) * 1995-10-23 1997-11-18 Lyall Assemblies, Inc. Fluorescent lamp holder
US6159029A (en) * 1995-10-23 2000-12-12 Lyall Assemblies, Inc. Fluorescent lamp holder
EP2037546A3 (de) * 2007-09-11 2013-01-23 Vossloh-Schwabe Deutschland GmbH Leuchtstofflampenfassung mit erhöhter Kontaktsicherheit

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE940178C (de) * 1948-10-02 1956-03-15 Siemens Ag Fassung fuer zweisockelige elektrische Entladungslampen, insbesondere Leuchtstofflampen
DE968247C (de) * 1951-09-02 1958-01-30 Bender & Wirth Fassung fuer zweisockelige Entladungs- und Leuchtstoffroehren
DE1006974B (de) * 1954-10-25 1957-04-25 Vossloh Werke Gmbh Fassung fuer Leuchtstofflampen mit Zweistiftsockeln
DE2708426C3 (de) * 1977-02-26 1981-11-12 Brökelmann, Jaeger & Busse GmbH & Co, 5760 Arnsberg Fassung für Leuchtstofflampen
DE19917682A1 (de) * 1999-04-19 2000-11-16 Vossloh Schwabe Gmbh Fassung, insbesondere für Leuchtstofflampen
DE202007016074U1 (de) 2007-10-25 2009-03-12 Bjb Gmbh & Co.Kg Lampenfassung

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2238152A (en) * 1940-09-05 1941-04-15 Alden Milton Socket
GB541556A (en) * 1938-09-12 1941-12-02 Gen Electric Co Ltd Improvements in sockets adapted to cooperate with two-pin lamp caps
GB591676A (en) * 1945-01-19 1947-08-26 Lumalampan Ab Holder device for tubular electric lamps

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2288376A (en) * 1939-11-22 1942-06-30 Gen Electric Lamp holder

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB541556A (en) * 1938-09-12 1941-12-02 Gen Electric Co Ltd Improvements in sockets adapted to cooperate with two-pin lamp caps
US2238152A (en) * 1940-09-05 1941-04-15 Alden Milton Socket
GB591676A (en) * 1945-01-19 1947-08-26 Lumalampan Ab Holder device for tubular electric lamps

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5688139A (en) * 1995-10-23 1997-11-18 Lyall Assemblies, Inc. Fluorescent lamp holder
US6159029A (en) * 1995-10-23 2000-12-12 Lyall Assemblies, Inc. Fluorescent lamp holder
EP2037546A3 (de) * 2007-09-11 2013-01-23 Vossloh-Schwabe Deutschland GmbH Leuchtstofflampenfassung mit erhöhter Kontaktsicherheit

Also Published As

Publication number Publication date
CH266505A (de) 1950-01-31
DE942100C (de) 1956-04-26

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