US2736872A - Electrical plug-in connectors - Google Patents

Electrical plug-in connectors Download PDF

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Publication number
US2736872A
US2736872A US311384A US31138452A US2736872A US 2736872 A US2736872 A US 2736872A US 311384 A US311384 A US 311384A US 31138452 A US31138452 A US 31138452A US 2736872 A US2736872 A US 2736872A
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US
United States
Prior art keywords
connector
shell
sleeve
plug
cable
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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
US311384A
Inventor
Heath Clarence Willans
Kay Henry Graeme Aytoun
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.)
United Carr Fastener Corp
Original Assignee
United Carr Fastener 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
Priority claimed from GB2244351A external-priority patent/GB710965A/en
Application filed by United Carr Fastener Corp filed Critical United Carr Fastener Corp
Priority to US311384A priority Critical patent/US2736872A/en
Application granted granted Critical
Publication of US2736872A publication Critical patent/US2736872A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R9/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, e.g. terminal strips or terminal blocks; Terminals or binding posts mounted upon a base or in a case; Bases therefor
    • H01R9/03—Connectors arranged to contact a plurality of the conductors of a multiconductor cable, e.g. tapping connections
    • H01R9/05—Connectors arranged to contact a plurality of the conductors of a multiconductor cable, e.g. tapping connections for coaxial cables
    • H01R9/0518—Connection to outer conductor by crimping or by crimping ferrule
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S116/00—Signals and indicators
    • Y10S116/35—Electroluminescent dials

Definitions

  • This invention relates to electrical plug-in connectors of the kind adapted to be attached to cables or leads provided with a central conducting core and a braided metal cover adapted to be earthed.
  • a plug-in connector of the kind referred to comprises a terminal pin adapted to be attached to the central conducting core of an electrical cable or lead, a pair of juxtaposed insulating members having adjacent inner faces positioned to clamp the inner end portion of the terminal pin, a metal sleeve adapted to encircle the braided outer cover of the cable or lead, the said sleeve having a portion overlapping the adjacent outer face of one of the said insulating members to clamp part of the braided outer cover between said outer face and the overlapping portion of the sleeve, and a metal housing having a body portion enclosing the insulating members and said overlapping portion of the sleeve, the parts of the connector being secured in assembled relation by portions of the body of the housing.
  • Fig. 1 is a sectional side view of a plug-in connector according to one embodiment of the invention, assembled on the end of an electrical cable or lead;
  • Fig. 2 is an exploded view of the connector illustrated in Fig. 1;
  • Fig. 3 is a sectional view of an improved form of socket for use with the connector.
  • Fig. 4 is a plan view of the socket shown in Fig. 3.
  • the plug-in connector comprises a hollow sheet metal terminal pin 1, having a radial flange 2 at its inner end and an annular bead 3 adjacent to but spaced from said inner end.
  • the central conducting core 4 of an electrical cable or lead A is adapted to extend within the terminal pin and be secured as by solder 5 to the pin.
  • a pair of discs or blocks 6, 7 of insulating material are provided having central apertures to permit the passage of the central core of the cable.
  • the inner end of the terminal pin extends through the aperture in the block 6 and the blocks are disposed in juxtaposed position on opposite sides of the flange 2, whereby the latter is clamped between the adjacent inner faces of the blocks.
  • a sheet metal sleeve 8 fits over the cable A so as to be in electrical contact with the metal braided outer cover a.
  • the sleeve is formed with an integral radially extending flange 9 which, as shown, extends parallel to the adjacent outer end face of the block 7 and has an area substantially co-extensive therewith.
  • the flange 9 is adapted to clamp a splayed out portion a of the braided cover a against the adjacent outer end face of the block 7.
  • a sheet metal housing comprising a cylindrical body 10 formed with integral end portions 11, 12, adapted to be inturned to overlap the adjacent outer faces of the block 6 and the flange 9.
  • the end portions 11 preferably comprises an annular flange which is preformed before the housing is assembled with the other parts of the connector, the other end portion 12 being turned inwardly by a suitable tool to form an annular flange after the parts have been assembled.
  • the body 10 of the housing When the connector is assembled on the cable the body 10 of the housing will be electrically connected with the braided outer cover a of the cable A, and as the braided cover is normally earthed the housing, which is the part which will be handled by the user, will also be earthed and can therefore be handled with safety.
  • the housing will further be isolated from the current carrying central core of the cable.
  • a socket member particularly adapted for use with the plug-in connector is illustrated in Figs. 3 and 4. As shown it comprises a base formed of three superposed plates of insulating material, 13, 14, 15 on which are mounted a sheet metal shell 16 and an inner socket 17.
  • the shell 16 is formed from a blank of sheet metal bent to form a cylindrical sleeve of slightly less diameter than the body 10 of the housing of the connector.
  • the shell 16 projects from the plug receiving face of the socket base and has a longitudinally extending slit to render the sleeve sufficiently resilient to permit the body 10 to be inserted and make a good frictional and electrical engagement with the walls of the sleeve.
  • a shell is mounted in an aperture in the plate 15 and is secured as by lateral lugs on the inner end of the shell extending between the plates 15, 16.
  • An integral wiring terminal 16 is provided projecting through apertures in the sheets forming the socket base to enable the shell to be connected to an earth lead.
  • the inner socket 17 comprises a cylindrical portion adapted to receive and make electrical engagement with the terminal pin 1 of the connector. It is mounted in alignment with apertures in the plates forming the socket base which are disposed in alignment with the shell 16. The inner socket is secured by lateral lugs extending between the plates 13, 14. It will be noted that the pin receiving portion of the inner socket projects from the opposite face of the base to the shell 16 and is provided with an integral wiring terminal 17. The mounting of the inner socket 17 and the shell ensures that they are electrically insulated from one another, and when the plug-in connector is inserted the body 10 will be received in the shell 16 which is earthed through the wiring terminal 16 and the terminal pin 1, will be received in the inner socket and electrically connected with an electrical circuit of a wireless or television receiver or other apparatus through the wiring terminal 17.
  • the longitudinal axis of the shell may be slightly oil.- set relative to the longitudinal axis of the pin receiving portion 17, so that when the body 10 is inserted it will engage the resilient wall of the shell and in tending to bring it into alignment with the inner socket, it will ensure efficient frictional engagement between the body 10 and the shell.
  • the shell may be non-circular in cross-sectional shape so as to provide a series of flats which are adapted to make line contact with the inserted body 10.
  • An electrical plug-in connector comprising a hollow terminal pin having a central conducting core and a braided metal outer cover adapted to be earthed, the said core being secured as by solder to the pin, said pin hav- 3 ing a laterally-extending portion at its inner end, a pair of juxtaposed insulating blocks positioned to clamp said laterally-extending portion of the pin between their adjacent inner faces, a metal sleeve surrounding the metal braided outer cover of the cable or lead, the sleeve having an annular flange extending in parallel overlapping relation to the outer end face of the adjacent insulating block, the portion of the said outer cover of the cable being positioned to extend between said outer end face of said last mentioned block and the annular flange of the sleeve, and a metal housing having a substantially cylindrical body enclosing the insulating :blocks and annular flange of the sleeve and having integral portions bent to respectively overlap the end face of the block adjacent to the terminal pin and the annular

Description

Feb. 28, 1956 c. w. HEATH ETAL ELECTRICAL PLUG-IN CONNECTORS Filed Sept. 25, 1952 F/QQ.
\NVEN Tops CLARENCE Wmmus Ham HENRY GRAEME. Av'vouu KM BY g ATTQRNEY United States Patent ELECTRICAL PLUG-1N CONNECTORS Clarence Willans Heath, Bleasby, and Henry Graeme Aytoun Kay, Highgate, London, England, assignors to United Carr Fastener Corporation, Cambridge, Mass.
Application September 25, 1952, Serial No. 311,384
1 Claim. (Cl. 339-142) This invention relates to electrical plug-in connectors of the kind adapted to be attached to cables or leads provided with a central conducting core and a braided metal cover adapted to be earthed.
It is an object of the present invention to provide an improved plug-in connector having means whereby the braided cover is electrically connected to part of the plug without the necessity of soldering and also to provide an improved socket for use therewith.
According to the present invention a plug-in connector of the kind referred to comprises a terminal pin adapted to be attached to the central conducting core of an electrical cable or lead, a pair of juxtaposed insulating members having adjacent inner faces positioned to clamp the inner end portion of the terminal pin, a metal sleeve adapted to encircle the braided outer cover of the cable or lead, the said sleeve having a portion overlapping the adjacent outer face of one of the said insulating members to clamp part of the braided outer cover between said outer face and the overlapping portion of the sleeve, and a metal housing having a body portion enclosing the insulating members and said overlapping portion of the sleeve, the parts of the connector being secured in assembled relation by portions of the body of the housing.
To enable the invention to be fully understood it will now be described with reference to the accompanying drawings, in which:
Fig. 1 is a sectional side view of a plug-in connector according to one embodiment of the invention, assembled on the end of an electrical cable or lead;
Fig. 2 is an exploded view of the connector illustrated in Fig. 1;
Fig. 3 is a sectional view of an improved form of socket for use with the connector; and
Fig. 4 is a plan view of the socket shown in Fig. 3.
As shown in Figs. 1 and 2 of the accompanying drawing, the plug-in connector comprises a hollow sheet metal terminal pin 1, having a radial flange 2 at its inner end and an annular bead 3 adjacent to but spaced from said inner end. The central conducting core 4 of an electrical cable or lead A is adapted to extend within the terminal pin and be secured as by solder 5 to the pin. A pair of discs or blocks 6, 7 of insulating material are provided having central apertures to permit the passage of the central core of the cable.
The inner end of the terminal pin extends through the aperture in the block 6 and the blocks are disposed in juxtaposed position on opposite sides of the flange 2, whereby the latter is clamped between the adjacent inner faces of the blocks.
A sheet metal sleeve 8 fits over the cable A so as to be in electrical contact with the metal braided outer cover a. The sleeve is formed with an integral radially extending flange 9 which, as shown, extends parallel to the adjacent outer end face of the block 7 and has an area substantially co-extensive therewith. The flange 9 is adapted to clamp a splayed out portion a of the braided cover a against the adjacent outer end face of the block 7.
The parts of the connector are secured in assembled relation by a sheet metal housing comprising a cylindrical body 10 formed with integral end portions 11, 12, adapted to be inturned to overlap the adjacent outer faces of the block 6 and the flange 9. The end portions 11 preferably comprises an annular flange which is preformed before the housing is assembled with the other parts of the connector, the other end portion 12 being turned inwardly by a suitable tool to form an annular flange after the parts have been assembled.
When the connector is assembled on the cable the body 10 of the housing will be electrically connected with the braided outer cover a of the cable A, and as the braided cover is normally earthed the housing, which is the part which will be handled by the user, will also be earthed and can therefore be handled with safety. The housing will further be isolated from the current carrying central core of the cable.
An important advantage of the plug-in connector is that the braided cover of the cable is readily secured to the body of the housing without the necessity of soldering.
A socket member particularly adapted for use with the plug-in connector is illustrated in Figs. 3 and 4. As shown it comprises a base formed of three superposed plates of insulating material, 13, 14, 15 on which are mounted a sheet metal shell 16 and an inner socket 17. The shell 16 is formed from a blank of sheet metal bent to form a cylindrical sleeve of slightly less diameter than the body 10 of the housing of the connector. The shell 16 projects from the plug receiving face of the socket base and has a longitudinally extending slit to render the sleeve sufficiently resilient to permit the body 10 to be inserted and make a good frictional and electrical engagement with the walls of the sleeve. A shell is mounted in an aperture in the plate 15 and is secured as by lateral lugs on the inner end of the shell extending between the plates 15, 16. An integral wiring terminal 16 is provided projecting through apertures in the sheets forming the socket base to enable the shell to be connected to an earth lead.
The inner socket 17 comprises a cylindrical portion adapted to receive and make electrical engagement with the terminal pin 1 of the connector. It is mounted in alignment with apertures in the plates forming the socket base which are disposed in alignment with the shell 16. The inner socket is secured by lateral lugs extending between the plates 13, 14. It will be noted that the pin receiving portion of the inner socket projects from the opposite face of the base to the shell 16 and is provided with an integral wiring terminal 17. The mounting of the inner socket 17 and the shell ensures that they are electrically insulated from one another, and when the plug-in connector is inserted the body 10 will be received in the shell 16 which is earthed through the wiring terminal 16 and the terminal pin 1, will be received in the inner socket and electrically connected with an electrical circuit of a wireless or television receiver or other apparatus through the wiring terminal 17.
. The longitudinal axis of the shell may be slightly oil.- set relative to the longitudinal axis of the pin receiving portion 17, so that when the body 10 is inserted it will engage the resilient wall of the shell and in tending to bring it into alignment with the inner socket, it will ensure efficient frictional engagement between the body 10 and the shell. If desired the shell may be non-circular in cross-sectional shape so as to provide a series of flats which are adapted to make line contact with the inserted body 10.
We claim:
An electrical plug-in connector comprising a hollow terminal pin having a central conducting core and a braided metal outer cover adapted to be earthed, the said core being secured as by solder to the pin, said pin hav- 3 ing a laterally-extending portion at its inner end, a pair of juxtaposed insulating blocks positioned to clamp said laterally-extending portion of the pin between their adjacent inner faces, a metal sleeve surrounding the metal braided outer cover of the cable or lead, the sleeve having an annular flange extending in parallel overlapping relation to the outer end face of the adjacent insulating block, the portion of the said outer cover of the cable being positioned to extend between said outer end face of said last mentioned block and the annular flange of the sleeve, and a metal housing having a substantially cylindrical body enclosing the insulating :blocks and annular flange of the sleeve and having integral portions bent to respectively overlap the end face of the block adjacent to the terminal pin and the annular flange of the sleeve,
References Cited in the file of this patent UNITED STATES PATENTS 2,425,834 Salisbury Aug. 19, 1947 2,461,268 Goldfield Feb. 8, 1949 FOREIGN PATENTS 531,947 Great Britain Jan. 14, 1941 782,015 France Mar. 11, 1935
US311384A 1951-09-25 1952-09-25 Electrical plug-in connectors Expired - Lifetime US2736872A (en)

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Application Number Priority Date Filing Date Title
US311384A US2736872A (en) 1951-09-25 1952-09-25 Electrical plug-in connectors

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB2244351A GB710965A (en) 1951-09-25 1951-09-25 Improvements in and relating to electrical plug connectors
US311384A US2736872A (en) 1951-09-25 1952-09-25 Electrical plug-in connectors

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Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3001169A (en) * 1956-03-29 1961-09-19 Isaac S Blonder Transmission-line connector
US3066643A (en) * 1960-05-02 1962-12-04 United Carr Fastener Corp Electrical device
US3227993A (en) * 1960-10-24 1966-01-04 Microdot Inc Electrical connector
US3258735A (en) * 1966-06-28 Combination receftacle plug and jack means
US3825883A (en) * 1973-02-27 1974-07-23 Bendix Corp Coaxial cable contact
US4515427A (en) * 1982-01-06 1985-05-07 U.S. Philips Corporation Coaxial cable with a connector
US4580856A (en) * 1983-04-22 1986-04-08 Casco Products Corporation Composite clamping shell for electric cigar lighters
US4669185A (en) * 1983-04-22 1987-06-02 Casco Products Corporation Method of making a composite clamping shell
US5207596A (en) * 1992-03-19 1993-05-04 Tandy Corporation Solderless coaxial wire connector and method for attachment
US20060213024A1 (en) * 2005-03-24 2006-09-28 Samsung Gwangju Electronics Co. Ltd. Vacuum cleaner
US20070000304A1 (en) * 2005-06-07 2007-01-04 Bernhard Wild Sensor unit having a connection cable
DE102011113706A1 (en) * 2011-09-17 2013-03-21 Kostal Kontakt Systeme Gmbh Device for contacting the cable shield of a coaxial cable
US20220028580A1 (en) * 2020-07-27 2022-01-27 Sumitomo Wiring Systems, Ltd. End structure and sleeve of shielded cable

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR782015A (en) * 1933-12-02 1935-05-27 Ideal Werke Ag Plug
GB531947A (en) * 1939-08-09 1941-01-14 Carr Fastener Co Ltd Improvements in and relating to electrical connectors
US2425834A (en) * 1943-03-31 1947-08-19 Sperry Gyroscope Co Inc Coaxial line coupling
US2461268A (en) * 1946-07-13 1949-02-08 Picker X Ray Corp Waite Mfg Four-way cable contact

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR782015A (en) * 1933-12-02 1935-05-27 Ideal Werke Ag Plug
GB531947A (en) * 1939-08-09 1941-01-14 Carr Fastener Co Ltd Improvements in and relating to electrical connectors
US2425834A (en) * 1943-03-31 1947-08-19 Sperry Gyroscope Co Inc Coaxial line coupling
US2461268A (en) * 1946-07-13 1949-02-08 Picker X Ray Corp Waite Mfg Four-way cable contact

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3258735A (en) * 1966-06-28 Combination receftacle plug and jack means
US3001169A (en) * 1956-03-29 1961-09-19 Isaac S Blonder Transmission-line connector
US3066643A (en) * 1960-05-02 1962-12-04 United Carr Fastener Corp Electrical device
US3227993A (en) * 1960-10-24 1966-01-04 Microdot Inc Electrical connector
US3825883A (en) * 1973-02-27 1974-07-23 Bendix Corp Coaxial cable contact
US4515427A (en) * 1982-01-06 1985-05-07 U.S. Philips Corporation Coaxial cable with a connector
US4580856A (en) * 1983-04-22 1986-04-08 Casco Products Corporation Composite clamping shell for electric cigar lighters
US4669185A (en) * 1983-04-22 1987-06-02 Casco Products Corporation Method of making a composite clamping shell
US5207596A (en) * 1992-03-19 1993-05-04 Tandy Corporation Solderless coaxial wire connector and method for attachment
US20060213024A1 (en) * 2005-03-24 2006-09-28 Samsung Gwangju Electronics Co. Ltd. Vacuum cleaner
US20070000304A1 (en) * 2005-06-07 2007-01-04 Bernhard Wild Sensor unit having a connection cable
US7469586B2 (en) * 2005-06-07 2008-12-30 Robert Bosch Gmbh Sensor unit having a connection cable
DE102011113706A1 (en) * 2011-09-17 2013-03-21 Kostal Kontakt Systeme Gmbh Device for contacting the cable shield of a coaxial cable
US20220028580A1 (en) * 2020-07-27 2022-01-27 Sumitomo Wiring Systems, Ltd. End structure and sleeve of shielded cable
US11742111B2 (en) * 2020-07-27 2023-08-29 Sumitomo Wiring Systems, Ltd. End structure and sleeve of shielded cable

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