US3643205A - Telephone handset connector - Google Patents

Telephone handset connector Download PDF

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Publication number
US3643205A
US3643205A US865585A US3643205DA US3643205A US 3643205 A US3643205 A US 3643205A US 865585 A US865585 A US 865585A US 3643205D A US3643205D A US 3643205DA US 3643205 A US3643205 A US 3643205A
Authority
US
United States
Prior art keywords
plug
receptacle
wall portions
sleeve
head
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
US865585A
Other languages
English (en)
Inventor
Luejene Elkins
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.)
Bunker Ramo Corp
Allied Corp
Original Assignee
Bunker Ramo Corp
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 Bunker Ramo Corp filed Critical Bunker Ramo Corp
Application granted granted Critical
Publication of US3643205A publication Critical patent/US3643205A/en
Assigned to ALLIED CORPORATION A CORP. OF NY reassignment ALLIED CORPORATION A CORP. OF NY ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: BUNKER RAMO CORPORATION A CORP. OF DE
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
    • H01R13/73—Means for mounting coupling parts to apparatus or structures, e.g. to a wall
    • H01R13/74—Means for mounting coupling parts in openings of a panel
    • 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
    • H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/627—Snap or like fastening
    • H01R13/6277—Snap or like fastening comprising annular latching means, e.g. ring snapping in an annular groove
    • 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
    • H01R13/73—Means for mounting coupling parts to apparatus or structures, e.g. to a wall
    • H01R13/74—Means for mounting coupling parts in openings of a panel
    • H01R13/741—Means for mounting coupling parts in openings of a panel using snap fastening means
    • H01R13/743—Means for mounting coupling parts in openings of a panel using snap fastening means integral with the housing

Definitions

  • ABSTRACT A miniature electrical connector consisting of a receptacle which latches itself into a single opening through the housing of an electrical instrument (a telephone handset, for example) together with a plug designed to be self latching upon insertion into the receptacle yet capable of quick, easy removal therefrom by proper manipulation.
  • a further object is to provide a connector having the desirable features indicated above but nevertheless of extremely simple physical configuration, so that the housings of both the plug and the receptacle may consist of a single molded piece of plastic material, with the parts individually of such design as to minimize the need for any undercuts or secondary operations in the course of manufacture.
  • a still further object of course is to achieve the desirable results indicated above with a device which is inherently of such design that it may be mass-produced at relatively high speed so that the costs thereof may be kept down to an acceptable level.
  • a further object of the invention is to provide a miniature plug and receptacle suited for use on the telephone handset and so designed that the connector may be manually coupled without the use of tools but of such shape, design, and proportions that it is unlikely to be released by any ordinary manual manipulation, yet can easily be removed by the use ofa simple tool such as a pair of tweezers or slender nose pliers.
  • both the receptacle and the plug carried therein include a tubular body of generally cylindrical shape, extending through an aperture in an instrument wall to an interior cavity therein; with both plug and receptacle having an enlarged head portion located exteriorly on the instrument housing and fitted together in such a way that both the plug and receptacle have two opposite parts relatively shiftable with respect to each other and so designed as tobe capable of automatic interlocking to hold the plug in position under normal circumstances but permit easy release when desired.
  • FIG. I is a disassembled view of the connector plug and receptacle, showing the general relationship of these parts with an instrument housing; illustrated in this instance as being a telephone handset.
  • FIG. 2 is a perspective view of the connector plug being manually inserted into position in the receptacle, which is in turn received in an aperture provided therefor in the handset housing.
  • FIG. 3 is a perspective view similar to FIG. 2 but showing the preferred manner of uncoupling the connector plug from its receptacle by the use of tweezers or slender nose pliers.
  • FIG. 4 is an enlarged detail cross-sectional view through the connector assembly showing the plug and receptacle in the respective positions that they assume with respect to each other and with respect to the housing wall of the instrument in which the connector is installed.
  • FIG. 5 is a detail cross-sectional view of the exterior, or head" portions of the plug and receptacle, the view being taken substantially on the plane of the line 5-5 of FIG. 4.
  • FIG. 6 is an enlarged detail sectional view showing the interlocking latching projections and recesses whereby the plug of the connector is retained in the receptacle, the view being taken substantially on the plane of the lines 6-6 of FIGS. 4 and 5.
  • FIG. 7 is an enlarged detail cross-sectional view similar to FIG. 5 but showing the positions that the parts assume when the plug is being uncoupled from the receptacle for removal therefrom: the view being taken substantially on the plane of the line 7-7 of FIG. 8.
  • FIG. 8 is an enlarged sectional view similar to FIG. 6 but with the parts in the position they assume during removal of the plug from the receptacle. In this view the parts are shown as they would appear on section line 8-8 of FIG. 7.
  • the present connector is particularly designed to be self-securing in a single aperture through the wall of an instrument housing.
  • this may be a telephone handset for example, wherein a circular aperture 10 is provided in the wall 11 of the instrument, to receive and secure the connector receptacle, generally designated 12.
  • the plug, generally designated 13 is for removable insertion into the receptacle and it is contemplated that the plug will have permanently attached to it the usual flexible phone cord or cable 14, including the several insulated wires required for connection of the telephone instrument to outside equipment.
  • the receptacle 12 consists of a generally tubular sleeve, preferably in a circular or cylindrical shape, and formed of some solid type of insulating material, yet preferably one that has a considerable degree of resiliency; such as nylon 6/10 for example.
  • the sleeve or cylindrical body portion 15 is provided with a thick solid bottom wall 16 having a number of apertures or contact cavities 17 extending therethrough, with internal shoulder portions 18 so arranged that a number (usually 4 to 6) of electrical contacts 19 having insulated conductors 20 attached thereto may be mounted in the bottom of the receptacle sleeve.
  • each contact has reduced diameter portions 21 that will automatically interlock with the shoulders 18 when the contacts are forced into position, and the individual contacts are crimped or soldered to the conduc tors 20 prior to assembly.
  • each contact has a pin portion 24 projecting into a cylindrical central cavity 26 of the receptacle from the bottom 16 thereof.
  • the other end of the receptacle sleeve 15 has an enlarged face flange 28 overlying the edges of the aperture 10 in the housing wall 11 of the handset so that inward movement of the assembly beyond the position shown in FIG. 4 is limited by the face-to-face engagement of this flange 28 with the outer surface of the housing.
  • the face flange 28 of the receptacle is also provided with a pair of identical but opposite outwardly extending sidewalls 30 (FIG. 6) so that the flange 28 and the walls 30 coact to form what may be referred to as a threesided head" portion for purposes hereinafter described.
  • the generally cylindrical walls of the sleeve 15 of the receptacle are provided with a number of slots 32 (preferably four in number) so that these sidewalls have considerable flexibility and the segments of the sidewalls between these slots are provided with integral latching lugs each having an inclined cam surface 34 at the end toward the bottom of the sleeve with a shoulder portion 36 adjacent the inside of the wall 11 of the housing.
  • the plug portion 13 of the connector also comprises a single, integral, molded piece of solid insulating material such as nylon 6/10 and also has a tubular sleeve 40 with a relatively thick bottom wall 42 having a plurality of contact cavities 44 therein, with each of the contact cavities having an internal shoulder 46, so that the narrow neck portions of the individual contact sleeves 48 are selfretaining after being forced into position in the cavities of the plug.
  • the individual contact sleeves 48 are of course positioned and dimensioned to receive the pin portions 24 of the receptacle contacts 19 and are also provided with flexible insulated wire leads 50 crimped or soldered thereto prior to assembly and leading to the telephone cord 14 of the handset.
  • the outward end of the plug 13 is, of course, provided with a deep, generally cylindrical cavity 52 in which anchoring means for the phone cord and leads 50 may be provided if desired, but these facilities are not shown since they form no part'of the present invention.
  • the outermost (left) end of the plug is provided with one or more deep slots 54, however (best shown in FIG. 4) so that the head? portion of the'plug; (that is, the portion outside of the instrument housing andnormally disposed between the sidewalls 30 of the receptacle) split into two opposed grip portions 56 and 58 (see also FIGS. and 7).
  • the grip portion 56 (FIGS. 5' and 6) has its leading corners beveled at 60 and 62 and has opposite sides recesses or notches 64 and 66 coacting with inwardly projecting latching lugs 68 and 70 on the walls 30.
  • the recesses 64-66 and 74-76 are also provided with beveled surfaces 82, 84, 86 and 88 inclined in directions perpendicular to those heretofore described. These coact with similarly inclined cam surfaces 92, 94, 96 and 98 on the detent members 68, 70, 78 and 80 (FIG. 7) so that the plug may be quickly and easily released if desired. This is accomplished, according to the present invention, by gripping the outer end of the plug with a pair of tweezers or narrow nosed pliers, as illustrated in FIG. 3, to apply inward force to theopposite grip portions'56 and 58 of the plug, in the directions indicated by the arrows 100 in FIG. 7.
  • the teachings of the present invention provide a very small, simple and economical type of connector which nevertheless has advantages in many respects.
  • the entire connector is held in position in the telephone instrument by the resilient action of the receptacle sleeve and its latching shoulders 36 which are flexed inwardly when the cam surfaces 34 are pressed through the aperture in the instrument wall, but thereafter engage the inside of the instrument cavity to prevent any reverse movement;
  • the resiliency of the receptacle sleeve is alone sufflcient to provide quite adequate locking of the connector in the instrument, but it is further noted that when the relatively solid walled plug 13 is inserted therein it prevents any possibility of inward flexing of the locking members and thus provides additional assurance against accidental release.
  • the plug With the receptacle in position as indicated above, the plug may be inserted simply by pushing it into the aperture of the receptacle at which time the cam surfaces 60-62 (FIG. 6) will spread the sidewalls 30-30 of the receptacle and allow the latching lugs to snap into and engage the receptacle recesses 64-66 and positively lock the plug against accidental displacement. Intentional release may be easily accomplished however, by squeezing the opposite grip portions 56-58 of the plug together; thereby spreading the sidewalls 30-30 of the receptacle head sufficiently so that the latches 68-70 and withdrawn by straight outward movement.
  • An electrical connector comprising a receptacle body having electrical contacts therein and having a recess adapted to receive a plug, said body having a pair of flexible extensions therefrom constituting normally parallel walls with opposed shoulders spaced apart at a distance less than will permit ingress of a human finger between them, cam surfaces extending from each of said walls toward the opposite wall, a plug member having electrical contacts and adapted to fit in said recess, and a bifurcated head on said plug member, adapted to pass between said flexible extensions by outward flexing thereof responsive to coaction between said head and said cam surfaces as said plug is inserted into said receptacle, said head having cavities therein receiving said cam surfaces when said plug is fully received by said receptacle, allowing said flexible extensions to return to the normal condition.
  • An electrical connector as defined in claim 1 having a further set of can surfaces on each of said walls, inclined in directions perpendicular to the first mentioned cam surfaces, and coacting with said cavities in said head to flex said extensions outwardly when the bifurcated portions of said head are moved toward each other with the plug fully received in said receptacle, thus permitting withdrawal of the plug by tweezers or thin-nose pliers.
  • An electrical connector comprising a receptacle having a generally tubular sleeve portion for insertion through an aperture in a mounting wall, and having an enlarged head on the outer end ofsaid sleeve to limit inward movement thercofwith respect to said mounting wall, said sleeve having resilient wall portions capable of flexing inwardly, and latching devices on the exterior surfaces of said resilient wall portions for passage through said aperture by inward flexing of said wall portions, in combination with a plug received in the receptacle and fitting within said sleeve whereby upon insertion of said plug in said sleeve on said mounting wall, said plug extends beyond said mounting wall and latching devices and fits within said sleeve so closely as to prevent inward flexing of said wall portions to an extent which would release said latching devices from engagement with said mounting wall adjacent said aperture.
  • An electrical connector comprising a receptacle having a generally tubular sleeve portion adapted to be inserted through an aperture in a mounting wall, and having an enlarged head on the outer end of said sleeve to limit inward movement thereof with respect to said mounting wall, said head having outwardly extending parallel wall portions defining a space therebetween conveniently accessible only to narrow tools such as the jaws of thin-nose pliers, said sleeve having resilient wall portions capable of flexing inwardly, and latching devices on the exterior surfaces of said resilient wall portions adapted to pass through said aperture by inward flexing of said wall portions in combination with a plug adapted to be received in the receptacle and to fit within said sleeve so closely as to prevent inward flexing of said wall portions to an extent which would release said latching devices from engagement with said mounting wall adjacent said aperture, said plug having an outermost head portion normally disposed between said wall portions when said plug is fully received by said receptacle, said outermost head portion of the plug

Landscapes

  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
US865585A 1969-10-13 1969-10-13 Telephone handset connector Expired - Lifetime US3643205A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US86558569A 1969-10-13 1969-10-13

Publications (1)

Publication Number Publication Date
US3643205A true US3643205A (en) 1972-02-15

Family

ID=25345830

Family Applications (1)

Application Number Title Priority Date Filing Date
US865585A Expired - Lifetime US3643205A (en) 1969-10-13 1969-10-13 Telephone handset connector

Country Status (10)

Country Link
US (1) US3643205A (xx)
JP (1) JPS5145075B1 (xx)
CA (1) CA931648A (xx)
CH (1) CH512831A (xx)
DE (1) DE2050268A1 (xx)
FR (1) FR2065360A5 (xx)
GB (1) GB1323578A (xx)
IL (1) IL35435A (xx)
NL (1) NL7014564A (xx)
SE (1) SE377235B (xx)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3919497A (en) * 1974-10-31 1975-11-11 Northern Electric Co Telephone housing with cord grommet and seal
US4333699A (en) * 1978-01-18 1982-06-08 Gk Technologies, Incorporated Flat telephone cord plug improvements
US4687271A (en) * 1985-09-23 1987-08-18 Itt Composants Et Instruments Instrument plug locking device
US4688872A (en) * 1984-08-02 1987-08-25 Adc Telecommunications, Inc. Electrical connector module with multiple connector housings
US4747020A (en) * 1986-05-16 1988-05-24 Adc Telecommunications, Inc. Wire distribution apparatus
US4845774A (en) * 1986-10-06 1989-07-04 Raymond Arzounian Apparatus for anchoring a telephone handset to a telephone housing
US5007079A (en) * 1989-09-15 1991-04-09 International Teleservice Corporation Coin fraud prevention unit and modular configurations for pay telephone stations
USRE33647E (en) * 1986-10-06 1991-07-23 Apparatus for anchoring a telephone handset to a telephone housing
US5067151A (en) * 1988-06-30 1991-11-19 Nec Corporation Telephone handset with electrostatic discharge prevention
EP1041681A1 (en) * 1999-03-31 2000-10-04 Sharp Kabushiki Kaisha Electronic equipment terminal connector

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2396437A1 (fr) * 1977-06-27 1979-01-26 Bunker Ramo Support de connecteurs electriques

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2499825A (en) * 1942-04-20 1950-03-07 Havlicek Josef Electric joint
US2891103A (en) * 1957-04-22 1959-06-16 Amp Inc Detachable block
US3179738A (en) * 1962-11-07 1965-04-20 Amp Inc Electrical connector housing having panel mounting and latching means
US3444329A (en) * 1965-10-27 1969-05-13 Bell Telephone Labor Inc Telephone set

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2499825A (en) * 1942-04-20 1950-03-07 Havlicek Josef Electric joint
US2891103A (en) * 1957-04-22 1959-06-16 Amp Inc Detachable block
US3179738A (en) * 1962-11-07 1965-04-20 Amp Inc Electrical connector housing having panel mounting and latching means
US3444329A (en) * 1965-10-27 1969-05-13 Bell Telephone Labor Inc Telephone set

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3919497A (en) * 1974-10-31 1975-11-11 Northern Electric Co Telephone housing with cord grommet and seal
US4333699A (en) * 1978-01-18 1982-06-08 Gk Technologies, Incorporated Flat telephone cord plug improvements
US4688872A (en) * 1984-08-02 1987-08-25 Adc Telecommunications, Inc. Electrical connector module with multiple connector housings
US4687271A (en) * 1985-09-23 1987-08-18 Itt Composants Et Instruments Instrument plug locking device
US4747020A (en) * 1986-05-16 1988-05-24 Adc Telecommunications, Inc. Wire distribution apparatus
US4845774A (en) * 1986-10-06 1989-07-04 Raymond Arzounian Apparatus for anchoring a telephone handset to a telephone housing
USRE33647E (en) * 1986-10-06 1991-07-23 Apparatus for anchoring a telephone handset to a telephone housing
US5067151A (en) * 1988-06-30 1991-11-19 Nec Corporation Telephone handset with electrostatic discharge prevention
US5007079A (en) * 1989-09-15 1991-04-09 International Teleservice Corporation Coin fraud prevention unit and modular configurations for pay telephone stations
EP1041681A1 (en) * 1999-03-31 2000-10-04 Sharp Kabushiki Kaisha Electronic equipment terminal connector
US6368152B1 (en) 1999-03-31 2002-04-09 Sharp Kabushiki Kaisha Electronic equipment terminal connector and electronic equipment and electronic terminal connector unit

Also Published As

Publication number Publication date
DE2050268A1 (de) 1971-04-22
GB1323578A (en) 1973-07-18
IL35435A (en) 1973-07-30
SE377235B (xx) 1975-06-23
CH512831A (de) 1971-09-15
JPS5145075B1 (xx) 1976-12-02
NL7014564A (xx) 1971-04-15
IL35435A0 (en) 1970-12-24
CA931648A (en) 1973-08-07
FR2065360A5 (xx) 1971-07-23

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Legal Events

Date Code Title Description
AS Assignment

Owner name: ALLIED CORPORATION COLUMBIA ROAD AND PARK AVENUE,

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:BUNKER RAMO CORPORATION A CORP. OF DE;REEL/FRAME:004149/0365

Effective date: 19820922