US2779011A - Manufacture of electrical socket contacts - Google Patents

Manufacture of electrical socket contacts Download PDF

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Publication number
US2779011A
US2779011A US482263A US48226355A US2779011A US 2779011 A US2779011 A US 2779011A US 482263 A US482263 A US 482263A US 48226355 A US48226355 A US 48226355A US 2779011 A US2779011 A US 2779011A
Authority
US
United States
Prior art keywords
prongs
curvature
radius
extending
socket contacts
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
US482263A
Other languages
English (en)
Inventor
Deakin Stanley Thomas
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.)
Edison Swan Electric Co Ltd
Original Assignee
Edison Swan Electric Co Ltd
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 Edison Swan Electric Co Ltd filed Critical Edison Swan Electric Co Ltd
Application granted granted Critical
Publication of US2779011A publication Critical patent/US2779011A/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
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H01R13/10—Sockets for co-operation with pins or blades
    • H01R13/11—Resilient sockets
    • H01R13/112—Resilient sockets forked sockets having two legs
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H11/00—Apparatus or processes specially adapted for the manufacture of electric switches
    • H01H11/04—Apparatus or processes specially adapted for the manufacture of electric switches of switch contacts
    • 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
    • H01R33/74—Devices having four or more poles, e.g. holders for compact fluorescent lamps
    • H01R33/76—Holders with sockets, clips, or analogous contacts adapted for axially-sliding engagement with parallely-arranged pins, blades, or analogous contacts on counterpart, e.g. electronic tube socket
    • H01R33/7607—Holders with sockets, clips, or analogous contacts adapted for axially-sliding engagement with parallely-arranged pins, blades, or analogous contacts on counterpart, e.g. electronic tube socket the parallel terminal pins having a circular disposition
    • H01R33/7614—Holders with sockets, clips, or analogous contacts adapted for axially-sliding engagement with parallely-arranged pins, blades, or analogous contacts on counterpart, e.g. electronic tube socket the parallel terminal pins having a circular disposition the terminals being connected to individual wires
    • H01R33/7628—Holders with sockets, clips, or analogous contacts adapted for axially-sliding engagement with parallely-arranged pins, blades, or analogous contacts on counterpart, e.g. electronic tube socket the parallel terminal pins having a circular disposition the terminals being connected to individual wires the wires being connected using solder

Definitions

  • the resilient prongs of such contacts are so arranged that when a contact pin is pushed between them they will press against the pin with: a good electrical connection whilst at the same time permitting ready disengagement of the pin.
  • Such contacts are usually produced from sheet metal by cutting and stamping processes and owing to the fact that contacts of this kind are normally produced in large quantities, it is important to reduce manufacturing operations-to a'minimum;
  • the main object-of the invention is to simplify the manufacture of such contacts.
  • the present invention comprises a method of manufacturing socket contacts of the kind referred to, consist-ing in cutting a sheet metal blank which comprises a tag portion extending in the one direction and a pair of prongs extending in the opposite direction, separating the prongs by a shearing operation and contouring the prongs by a pressing operation in such manner as to rotate both the prongs at their root ends in the same angular direction about their individual longitudinal axes into parallel planes which are oblique to the direction of application of the pressure and the plane of the tag portion so that the free ends of the prongs are substantially opposite to each other.
  • angular direction implies that the ends of both prongs are rotated clockwise or anti-clockwise as the case may be, when viewed in the same longitudinal direction.
  • the rotation of the prongs is effected by a pressing operation in such a manner as to cause the radius of curvature of the bend formed at the root end of each prong to vary laterally in such a manner that the radius of curvature of the bend is greatest adjacent the line of severance and is least at the outside edge.
  • the operation of severing the prongs and at least part of the contouring are carried out by a single pressing operation between suitably contoured dies.
  • the invention also comprises a socket contact member which includes a tag member extending longitudinally in one direction and a pair of prongs extending in the opposite direction, the prongs being twisted at the root ends in the same angular direction about their individual longitudinal axes into planes which are parallel to each other but twisted relative to that of the tag, and the lateral bends produced at the root ends of the prongs by'the-twisting operation have each a varying radius of curvature, the'radius of curvature being greatest at the centre, i. e., adjacent the line of severance of the prongs.
  • Fig: 1 shows a sane prior to the pressing operation by which it is contoured
  • Fig 2' a plan view of a contact member after the pressing operation
  • Fig; 3 isa sfde view-of the contact membershown-in Fig: 2E and Fig. 4' is similarly an end view ofthe contact member shownin Fig'. 35am! Fig: iisaperspectiw view; I
  • the-'- reference "1' indicates: the tag: end of the contact member which" is formed with a" slot 21 whilst 3 and 1- are the prongs.
  • the pron'gs' are severed along the line- 4 as shown in- Fig: 1, this severing being effected" by a shearing of the metal; p
  • the shaping of the bends 5 and 6 by which the radius curvature varies laterally has the effect of increasing the resistance of the prongs to deformation in the directions in which they are forced apart so that when a pin or contact is inserted between the prongs an increased pressure will be exerted on the pin as compared with a prong in which the bend is uniform across its lateral axis.
  • the tips are swaged as shown at 11 and 12 so as to provide ramp surfaces 13 and 14 which will assist the entry of prongs or contacts.
  • a method of manufacturing socket contacts of the kind comprising a pair of resilient prongs adapted to engage opposite sides of a contact pin, consisting in cutting a sheet metal blank to form a tag portion extending in one direction and a pair of prongs extending in the opposite direction, and contouring said prongs by a pressing operation in such a manner as to rotate both of the prongs in the same angular direction relative to the tag portion through angles less than right angles about individual longitudinal and parallel axes into substantially parallel planes which are oblique to the plane of the tag portion so that the free ends of the prongs are substantially opposite to each other.
  • a method of manufacturing socket contacts of the kind comprising a pair of resilient prongs adapated to engage opposite sides of a contact pin, consisting in cutting a sheet metal blank to form a tag portion extending in one direction and a pair of prongs extending in the opposite direction, applying a pressing operation to the blank which forms a longitudinal out between the prongs and rotates both of the prongs at their root ends in the same angular direction relative to the tag portion and through angles less than right angles about their individual longitudinal axes into parallel planes which are oblique to the plane of the "tag portion so that the free ends of the prongs are substantially opposite to each other, and producing by the pressing operation bends in the prongs about axes of curvature extending laterally across the prongs whereof the radius of curvature is greatest adjacent the central longitudinal edge of each prong and progressively reduces to the outside edge and the bend being concave in one prong and convex in the other prong.
  • socket contacts of the kind comprising a pair of resilient prongs adapted to engage opposite sides of a contact pin, consisting in the steps of cutting a sheet metal blank to form a tag portion extending longitudinally in one direction and a pair of prongs extending in the opposite direction, and stamping lines of curvature about axes extending laterally across the root ends of the prongs, the two prongs being curved in opposite directions and the radius of curvature reducing progressively from a maximum adjacent the longitudinal axis to a minimum at the outside edges so that the prongs are rotated about their individual longitudinal axes into substantially parallel planes.
  • a socket contact member having a tag portion extending longitudinally in one direction and a pair of prongs extending in the opposite direction, said prongs being rotated in the same angular direction about their individual longitudinal axes into planes which are parallel to each other, the root ends of said prongs having opposite bends produced by the rotation thereof, said bends extending about axes of curvature extending laterally and each bend having a varying radius of curvature, the radius of curvature of each bend being greatest along the longitudinal center line of the contact member and decreasing progressively to the outside thereof.
  • a socket contact member having a tag portion ex tending longitudinally in one direction and a pair of prongs extending in the opposite direction, said prongs being rotated in the same angular direction about their individual longitudinal axes into planes which are parallel to each other but rotated relative to the plane of the tag, the root ends of said prongs having bends produced by the rotation of the prongs, said bends extending along lateral axes of curvature, each bendhaving a varying radius of curvature, the radius of such curvature being greatest along the center line of the socket member and decreasing progressively to the outside thereof, and the tips of the prongs being swaged outwardly.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Connecting Device With Holders (AREA)
  • Adornments (AREA)
US482263A 1954-02-01 1955-01-17 Manufacture of electrical socket contacts Expired - Lifetime US2779011A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2949/54A GB768242A (en) 1954-02-01 1954-02-01 Improvements relating to the manufacture of electrical socket contacts

Publications (1)

Publication Number Publication Date
US2779011A true US2779011A (en) 1957-01-22

Family

ID=9749088

Family Applications (1)

Application Number Title Priority Date Filing Date
US482263A Expired - Lifetime US2779011A (en) 1954-02-01 1955-01-17 Manufacture of electrical socket contacts

Country Status (3)

Country Link
US (1) US2779011A (fr)
FR (1) FR1124453A (fr)
GB (1) GB768242A (fr)

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2924676A (en) * 1956-10-17 1960-02-09 Siemens Edison Swan Ltd Electrical switches
US3012221A (en) * 1956-10-08 1961-12-05 Siemens Edison Swan Ltd Electrical socket contacts
US3083351A (en) * 1961-04-10 1963-03-26 Jr Auker J Nielsen Electrical receptacle
US3115379A (en) * 1961-11-29 1963-12-24 United Carr Fastener Corp Electrical connector
US3123428A (en) * 1961-12-26 1964-03-03 Electrical connector
US3503036A (en) * 1968-03-27 1970-03-24 Amp Inc Contact terminals and manufacturing method
US4007977A (en) * 1974-05-09 1977-02-15 Bunker Ramo Corporation Electrical connector
US4317609A (en) * 1979-08-08 1982-03-02 Gte Products Corporation Electrical contact
DE3324737A1 (de) * 1983-07-08 1985-01-17 Allied Corp Kontaktfeder und verfahren zu deren herstellung
US4591230A (en) * 1984-06-29 1986-05-27 Frank Roldan Electrical connector receptacle
DE4330390A1 (de) * 1993-09-08 1995-03-09 Erni Elektroapp Einteilige, zweischenklige Kontaktfeder
WO1997020369A1 (fr) * 1995-12-01 1997-06-05 Berg Technology, Inc. Procede de fabrication de bornes de contact a surface lisse
US6109974A (en) * 1997-06-11 2000-08-29 Berg Technology, Inc. Electrical connector
US6155860A (en) * 1998-01-31 2000-12-05 Berg Technology, Inc. Socket for electrical component
US6286209B1 (en) * 1995-12-01 2001-09-11 Berg Technology, Inc. Method of making smooth contact terminals
US6406316B1 (en) 1998-01-31 2002-06-18 Fci Americas Technology, Inc. Electrical connector with multiple housings
US20060135003A1 (en) * 2004-12-22 2006-06-22 Molex Incorporated Connector with improved dual beam contacts
EP1743403A1 (fr) * 2004-04-28 2007-01-17 Behr GmbH & Co. KG Dispositif de connexion d'une commande electrique a au moins un reseau de distribution, et procede de fabrication d'un tel dispositif de connexion
EP1901398A1 (fr) * 2006-09-14 2008-03-19 Hager Electro GmbH & Co. KG Pièce de raccordement destinée à la fabrication d'un contact électrique
US20110151723A1 (en) * 2009-12-18 2011-06-23 Hon Hai Precision Industry Co., Ltd. Electrical connector having contact terminals with deflective arms facing each in twisted manner

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4825541A (en) * 1986-12-22 1989-05-02 Erni Elektroapparate Gmbh Method of making contact springs

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB538801A (en) * 1940-02-15 1941-08-18 Clifford Metcalfe Improvements in or relating to electric couplings
GB584884A (en) * 1945-02-01 1947-01-24 Belling & Lee Ltd Improvements in electrical socket connectors or holders for multi-pin valves or other components
US2476429A (en) * 1946-08-30 1949-07-19 Aircraft Marine Prod Inc Connector for electrical conductors
US2575161A (en) * 1946-05-31 1951-11-13 British Mechanical Prod Ltd Resilient electric socket contact element

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB538801A (en) * 1940-02-15 1941-08-18 Clifford Metcalfe Improvements in or relating to electric couplings
GB584884A (en) * 1945-02-01 1947-01-24 Belling & Lee Ltd Improvements in electrical socket connectors or holders for multi-pin valves or other components
US2575161A (en) * 1946-05-31 1951-11-13 British Mechanical Prod Ltd Resilient electric socket contact element
US2476429A (en) * 1946-08-30 1949-07-19 Aircraft Marine Prod Inc Connector for electrical conductors

Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3012221A (en) * 1956-10-08 1961-12-05 Siemens Edison Swan Ltd Electrical socket contacts
US2924676A (en) * 1956-10-17 1960-02-09 Siemens Edison Swan Ltd Electrical switches
US3083351A (en) * 1961-04-10 1963-03-26 Jr Auker J Nielsen Electrical receptacle
US3115379A (en) * 1961-11-29 1963-12-24 United Carr Fastener Corp Electrical connector
US3123428A (en) * 1961-12-26 1964-03-03 Electrical connector
US3503036A (en) * 1968-03-27 1970-03-24 Amp Inc Contact terminals and manufacturing method
US4007977A (en) * 1974-05-09 1977-02-15 Bunker Ramo Corporation Electrical connector
US4317609A (en) * 1979-08-08 1982-03-02 Gte Products Corporation Electrical contact
DE3324737A1 (de) * 1983-07-08 1985-01-17 Allied Corp Kontaktfeder und verfahren zu deren herstellung
US4591230A (en) * 1984-06-29 1986-05-27 Frank Roldan Electrical connector receptacle
DE4330390A1 (de) * 1993-09-08 1995-03-09 Erni Elektroapp Einteilige, zweischenklige Kontaktfeder
US6475041B1 (en) 1993-09-08 2002-11-05 Erni Elektroapparate Gmbh One-piece two-leg contact spring
WO1997020369A1 (fr) * 1995-12-01 1997-06-05 Berg Technology, Inc. Procede de fabrication de bornes de contact a surface lisse
US6286209B1 (en) * 1995-12-01 2001-09-11 Berg Technology, Inc. Method of making smooth contact terminals
US6109974A (en) * 1997-06-11 2000-08-29 Berg Technology, Inc. Electrical connector
US6406316B1 (en) 1998-01-31 2002-06-18 Fci Americas Technology, Inc. Electrical connector with multiple housings
US6155860A (en) * 1998-01-31 2000-12-05 Berg Technology, Inc. Socket for electrical component
US6482050B1 (en) * 1998-01-31 2002-11-19 Fci Americas Technology, Inc. Contact for electrical component socket
EP1624533A1 (fr) * 1998-12-18 2006-02-08 Fci Contact pour composant électrique
EP1743403A1 (fr) * 2004-04-28 2007-01-17 Behr GmbH & Co. KG Dispositif de connexion d'une commande electrique a au moins un reseau de distribution, et procede de fabrication d'un tel dispositif de connexion
US20060135003A1 (en) * 2004-12-22 2006-06-22 Molex Incorporated Connector with improved dual beam contacts
WO2006069338A3 (fr) * 2004-12-22 2006-08-24 Molex Inc Connecteur comportant des elements de contact en porte-a-faux
EP1901398A1 (fr) * 2006-09-14 2008-03-19 Hager Electro GmbH & Co. KG Pièce de raccordement destinée à la fabrication d'un contact électrique
EP2278665A1 (fr) * 2006-09-14 2011-01-26 Hager Electro GmbH & Co. KG Pièce de raccordement destinée à la fabrication d'un contact électrique
US20110151723A1 (en) * 2009-12-18 2011-06-23 Hon Hai Precision Industry Co., Ltd. Electrical connector having contact terminals with deflective arms facing each in twisted manner
US8430682B2 (en) * 2009-12-18 2013-04-30 Hon Hai Precision Industry Co., Ltd. Electrical connector having contact terminals with deflective arms facing each in twisted manner

Also Published As

Publication number Publication date
FR1124453A (fr) 1956-10-11
GB768242A (en) 1957-02-13

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