US3228207A - Electrical connectors - Google Patents

Electrical connectors Download PDF

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Publication number
US3228207A
US3228207A US241758A US24175862A US3228207A US 3228207 A US3228207 A US 3228207A US 241758 A US241758 A US 241758A US 24175862 A US24175862 A US 24175862A US 3228207 A US3228207 A US 3228207A
Authority
US
United States
Prior art keywords
socket
flat
plug
contact member
resilient
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
US241758A
Other languages
English (en)
Inventor
Jr Fritz Hartmann
Konnemann Alfred
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.)
Grote and Hartmann GmbH and Co KG
Original Assignee
Grote and Hartmann GmbH and Co KG
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 Grote and Hartmann GmbH and Co KG filed Critical Grote and Hartmann GmbH and Co KG
Application granted granted Critical
Publication of US3228207A publication Critical patent/US3228207A/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
    • H01R13/115—U-shaped sockets having inwardly bent legs, e.g. spade type

Definitions

  • sockets having flat or curved bottoms have been proposed wherein the side walls are not simply bent up at the edges of the bottom, but wherein between the bottom edges and the side walls, bent down, grooves or channel portions are provided which cause the bottom of the socket to be lifted up, toward the free ends of the resilient, bent back portions, so the longitudinal edges of the flat contact member no longer bear against the axes of the resilient portions, an arrangement which indeed results in an increase of the effective contact areas.
  • the present invention contemplates eliminating the drawbacks and shortcomings of the prior art devices mentioned above, and achieving a true parallelism of the plug and socket surfaces relied on for purposes of electric contact, by supporting the flat contact member punctiform projections which serve as seats for the flat contact member which is forced down on these seats by the spring action of the bent back resilient portions. These projections cause the flat contact member to be disposed truly parallel to the even bottom of the socket as well as to the narrow terminal faces of the resilient portions, and the surface of the flat contact member facing the narrow terminal faces of the resilient portions, in particular, is also truly parallel to these terminal faces.
  • the invention results in a superior contact on both the top and bottom faces of the flat contact member and in a minimum resistance to current flow from said member to the top and bottom portions of the socket abutting thereagainst.
  • the projections on the socket bottom serving not only to establish and maintain true parallelism of the terminal faces of the resilient socket portions with the flat contact member, but moreover to furnish a directed counterpressure acting from the bottom of the socket which in conjunction with the downwardly exerted force of the resilient portions at the top of the socket, tightens the )grip of the socket on the flat contact member, thus enhancing the contact between the members joined in the device.
  • the inwardly directed projections on the socket bottom which are of uniform height and which are embossed or stamped from the bottom are provided in the form of punctiform projections such as knob-shaped bosses.
  • the bosses are spaced evenly from the center line of the bottom, and are disposed in pairs which are arranged symmetrically relative to one another as well as the center-line.
  • FIG. 1 is a diagrammatic side elevation of a second embodiment of the invention, shown largely in section taken along the line II in FIG. 3;
  • FIG. 2 is a top view of the device shown in FIG. 1, and
  • FIG. 3 is a front view of the embodiment of the invention illustrated in FIGS. 1 and 2 viewed in the direction of the arrow marked III in FIG. 2.
  • the socket is seen to comprise a bottom 7, and on both sides thereof, upwardly and inwardly bent resilient portions 8.
  • the socket extends into a portion 9 on which to mount a conductor; this portion may be provided with claws for the solderless attachment of the end of a conductor.
  • the bottom 7 is embossed to provide inwardly directed projections which serve as seats or abutments for a flat contact member to be inserted in the socket and exposed to the spring action of the resilient portions 8.
  • a flat contact member 10 is shown in dot and dash lines, in FIG. 3.
  • a device comprises embossed, punched or stamped bottom portions 712 of cam or knob-shaped boss type configuration.
  • bosses 7b are distributed evenly over the bottom 7 of the socket. They are spaced evenly from the center line of the bottom, and are juxtaposed in pairs which are symmetrically arranged with respect to one another as well as to the longitudinal center line of the bottom. They are disposed in regions of the bottom 7 across which extend the resilient portions 8.
  • FIG. 1 shows embossed, punched or stamped bottom portions 712 of cam or knob-shaped boss type configuration.
  • the bosses 7b are effective in supporting the flat contact member in true parallelism to the bottom 7 of the socket, and to match the downwardly directed force of the resilient portion 8, by an upwardly directed counterpressure forcing the fiat contact member 10 against the terminal faces 8b of the resilient portions 8.
  • the bottom 7 of the socket is provided on its longitudinal center line, with a cam shaped projection 70 which is designed to engage a corresponding depression or recess 10 provided in the flat contact member 10, in a manner not uncommon in the art.
  • An electrical plug and socket connector comprising a flat plug of rectangular configuration, a one-piece resilient socket member adapted to be formed by cutting and punching a single piece of rigid material, said socket member having an elongated flat planar rectangular bottom portion, two parallel, shallow side wall portions extending first upwardly, then inwardly and then downwardly toward said bottom portion and perpendicularly thereto.
  • the bottom of said socket being provided with four generally identical bosses of uniform height which are struck out of the base plane of the bottom and symmetrically distributed in pairs on both sides of the longitudinal center of said base adjacent the four corners of the base, each of said tongue edges of said side walls terminating at the identical distance above each of said four bosses which is less than the height of said fiat plug element to urge the lower tongue edge end faces to bear perpendicularly against the fiat top surface of the plug, said four bosses supporting the bottom of said flat plug with the upper and lower surfaces of said flat plug being maintained respectively in generally parallel relation to the lower tongue faces and to the fiat bottom of the socket, said bottom portion having an inwardly directed cam projection located

Landscapes

  • Coupling Device And Connection With Printed Circuit (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
US241758A 1961-12-05 1962-12-03 Electrical connectors Expired - Lifetime US3228207A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEG25004U DE1848266U (de) 1961-12-05 1961-12-05 Flachsteckverbindung.

Publications (1)

Publication Number Publication Date
US3228207A true US3228207A (en) 1966-01-11

Family

ID=33030629

Family Applications (1)

Application Number Title Priority Date Filing Date
US241758A Expired - Lifetime US3228207A (en) 1961-12-05 1962-12-03 Electrical connectors

Country Status (8)

Country Link
US (1) US3228207A (fr)
BE (1) BE625157A (fr)
CH (1) CH400285A (fr)
DE (1) DE1848266U (fr)
DK (1) DK105283C (fr)
FR (1) FR1339172A (fr)
GB (1) GB993900A (fr)
NL (1) NL285244A (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5038199A (en) * 1989-06-20 1991-08-06 Mitsubishi Denki Kabushiki Kaisha Connection terminal of semiconductor device
US5188545A (en) * 1990-06-05 1993-02-23 Amp Incorporated Electrical socket terminal
US7255614B1 (en) * 2006-06-30 2007-08-14 Illinois Tool Works Inc Electrical terminal
US20100190388A1 (en) * 2009-01-23 2010-07-29 Mta S.P.A. Female electrical terminal
US20180294588A1 (en) * 2017-04-05 2018-10-11 Te Connectivity Corporation Receptacle terminal with stable contact geometry
US10256561B2 (en) 2017-04-05 2019-04-09 Te Connectivity Corporation Terminal with ribbed contact spring
US10446962B2 (en) * 2016-05-18 2019-10-15 Sumitomo Wiring Systems, Ltd. Female terminal fitting
US20220045452A1 (en) * 2020-08-05 2022-02-10 Aptiv Technologies Limited Anti-fretting/multiple contact terminal using knurl pattern
US11646510B2 (en) 2021-04-29 2023-05-09 Aptiv Technologies Limited Shielding electrical terminal with knurling on inner contact walls

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1640139B1 (de) * 1966-02-28 1971-09-30 Grote & Hartmann Aus einem Blechstanzteil gefertigte Flachsteckhuelse
US4561713A (en) * 1983-09-01 1985-12-31 Wythe Industries Inc. Lamp socket bracket system
GB8717202D0 (en) * 1987-07-21 1987-08-26 Lucas Ind Plc Fuse clip assembly
JP2816814B2 (ja) * 1994-09-27 1998-10-27 ヒロセ電機株式会社 ランプソケット

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US662003A (en) * 1900-06-09 1900-11-20 Alfred Lamm Washer.
US1886758A (en) * 1928-11-12 1932-11-08 Paul G Swars Electrical contacting device
FR960968A (fr) * 1950-04-28
US2647248A (en) * 1951-05-17 1953-07-28 Hugh H Eby Inc Socket-type contact
US2774951A (en) * 1954-12-16 1956-12-18 Aircraft Marine Prod Inc Terminal clip
US2894240A (en) * 1955-12-23 1959-07-07 Robert S Mautner Sockets for printed electrical circuits

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR960968A (fr) * 1950-04-28
US662003A (en) * 1900-06-09 1900-11-20 Alfred Lamm Washer.
US1886758A (en) * 1928-11-12 1932-11-08 Paul G Swars Electrical contacting device
US2647248A (en) * 1951-05-17 1953-07-28 Hugh H Eby Inc Socket-type contact
US2774951A (en) * 1954-12-16 1956-12-18 Aircraft Marine Prod Inc Terminal clip
US2894240A (en) * 1955-12-23 1959-07-07 Robert S Mautner Sockets for printed electrical circuits

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5038199A (en) * 1989-06-20 1991-08-06 Mitsubishi Denki Kabushiki Kaisha Connection terminal of semiconductor device
US5188545A (en) * 1990-06-05 1993-02-23 Amp Incorporated Electrical socket terminal
US7255614B1 (en) * 2006-06-30 2007-08-14 Illinois Tool Works Inc Electrical terminal
US20100190388A1 (en) * 2009-01-23 2010-07-29 Mta S.P.A. Female electrical terminal
US7845993B2 (en) * 2009-01-23 2010-12-07 Mta S.P.A. Female electrical terminal
US10446962B2 (en) * 2016-05-18 2019-10-15 Sumitomo Wiring Systems, Ltd. Female terminal fitting
US20180294588A1 (en) * 2017-04-05 2018-10-11 Te Connectivity Corporation Receptacle terminal with stable contact geometry
US10103469B1 (en) * 2017-04-05 2018-10-16 Te Connectivity Corporation Receptacle terminal with stable contact geometry
US10256561B2 (en) 2017-04-05 2019-04-09 Te Connectivity Corporation Terminal with ribbed contact spring
US20220045452A1 (en) * 2020-08-05 2022-02-10 Aptiv Technologies Limited Anti-fretting/multiple contact terminal using knurl pattern
US11387585B2 (en) * 2020-08-05 2022-07-12 Aptiv Technologies Limited Anti-fretting/multiple contact terminal using knurl pattern
US11646510B2 (en) 2021-04-29 2023-05-09 Aptiv Technologies Limited Shielding electrical terminal with knurling on inner contact walls

Also Published As

Publication number Publication date
CH400285A (de) 1965-10-15
DK105283C (da) 1966-09-12
BE625157A (fr)
NL285244A (fr)
DE1848266U (de) 1962-03-15
FR1339172A (fr) 1963-10-04
GB993900A (en) 1965-06-02

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