US3621449A - Electrical connectors - Google Patents

Electrical connectors Download PDF

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Publication number
US3621449A
US3621449A US826641A US3621449DA US3621449A US 3621449 A US3621449 A US 3621449A US 826641 A US826641 A US 826641A US 3621449D A US3621449D A US 3621449DA US 3621449 A US3621449 A US 3621449A
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United States
Prior art keywords
tape
cable
tooth
rotatable member
contact
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Expired - Lifetime
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US826641A
Inventor
Kenneth F Bridle
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AB Electronic Components Ltd
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AB Electronic Components Ltd
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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
    • H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/50—Fixed connections
    • H01R12/59—Fixed connections for flexible printed circuits, flat or ribbon cables or like structures
    • H01R12/65—Fixed connections for flexible printed circuits, flat or ribbon cables or like structures characterised by the terminal
    • H01R12/67—Fixed connections for flexible printed circuits, flat or ribbon cables or like structures characterised by the terminal insulation penetrating terminals
    • 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
    • H01R13/58—Means for relieving strain on wire connection, e.g. cord grip, for avoiding loosening of connections between wires and terminals within a coupling device terminating a cable
    • H01R13/595—Bolts operating in a direction transverse to the cable or wire

Definitions

  • the rotatable member engages the tape cable within the housing so that, when the connector is assembled and the member rotated, the portion of the rotatable member having the greater radius comes into contact with the tape cable and the cable is drawn longitudinally across the teeth on the electrical contact so that the teeth plough through the insulating medium and establish electrical contact with the metallic tape.
  • the present invention relates to connectors for making electrical connections to a tape cable comprising a metallic tape or side-by-side metallic tapes embedded in an insulating medium.
  • an electrical connector for a tape cable comprises a housing carrying at least one electrical contact having at least one tooth for contact with a metallic tape in the cable and a rotatable member mounted to engage the tape cable and on rotation to draw the tape cable longitudinally across the tooth so that the tooth ploughs through the insulating medium to establish electrical contact with a metallic tape.
  • clamping means are provided for clamping the cable with respect to the housing.
  • the backing surface may be arranged for the passage of the tape cable between the backing surface and the rotatable member and preferably the backing surface is resilient as by being of rubber.
  • the circumference of the rotatable member has a portion of lesser radius and a portion of greater radius; for example the rotatable member may be a circular cylinder having a flat thereon.
  • the rotatable member may be a circular cylinder having a flat thereon.
  • the rotation of the rotatable member may winch the cable longitudinally with respect to the housing so that as the cable moves the teeth plough through the insulating medium and make contact with the metallic tapes in the cable.
  • each metallic tape Preferably there is an electrical contact for each metallic tape and the contacts may be spaced apart in an insulating material.
  • a resilient pad adjacent the teeth and a spring on the opposite side of the contact urging the teeth towards the pad.
  • FIG. I is a longitudinal section of the connector in the closed position
  • FIG. 2 is an end elevation of the contact carrier
  • FIGS. 3 and 4 are respectively a plan and a side elevation to a smaller scale of the connector mounted on a tape cable.
  • the connector includes a casing having an upper portion and a lower portion 11; the lower portion is provided with a channel faced with rubber 12 to accommodate the tape cable 13 which consists of a number, for example 19, strips 13a of copper embedded side by side in a plastics insulator.
  • the two members may be clamped together with screws 14 and 15, one pair at the front and one pair at the rear of the connector.
  • a recess 16 is formed in the inner surface of the upper portion 10 so that when the two portions are clamped together the recess 16 in the top portion add a recess 17 in the lower portion combine to form a chamber which contains a rotatable member 18, which is in the form of a circular cylinder with a flat 19 and has journals 20 of reduced diameter at the ends by which the rotatable member is mounted in semicircular recesses in the mating edges of the upper and lower portions of the casing.
  • the ends of the journals have screwdriver slots 2] by means ofwhich the rotatable member may be turned.
  • a recess 29 in the upper portion 10 of the casing houses a rectangular convoluted spring 27 which extends across the whole width of the tape cable and contact carrier 23.
  • the tape When the connector is to be assembled, the tape is guided within the longitudinal channel until it abuts a stop member 28 on the lower portion 111 of the connector.
  • the rotatable member 1% is placed over the tape with the flat 19 facing the tape.
  • the convoluted spring 27 and the contact carrier 23 are assembled in he upper portion 10 which is placed over the lower portion and the pairs of screws M and 15 are tightened.
  • the rear pair of screws M clamp the tape cable between the two members 10 and II where the cable passes out of the easing and the front pair of screws press the teeth 26 against or perhaps into the cable.
  • the rotatable member I8 is rotated clockwise as viewed in FIG. ll until the circular part of the sur face of the member is in contact with the tape. This will have the effect of increasing the length of the path of the tape between the two clamping positions as. the rubber l2 and the tape will be urged downwardly. The tape will be put in tension and the teeth 25 will plough through the tape until they are in contact with the metallic strips as shown in FIG. 1.
  • the connector described above is for use at the end of a cable and is the male member of a plug and socket connector.
  • the female member may be of the same general construction with a modified contact carrier and contacts.
  • the contact terminals may take various other forms. For example, they may be formed as wrapping posts of solder wells or tags.
  • a connector for permanently joining two cables may be made having a left-hand half which is substantially as the complete connector described above and a right-hand half which is symmetrical with the left-hand half, the contacts being formed with a set of teeth at each end.
  • An electrical connector for a tape cable comprising a metallic tape or tapes embedded side by side in an insulating medium
  • the connector comprising a housing carrying at least one electrical contact having at least one tooth for contact with said metallic tape in said cable and a rotatable member having a circumference having a portion of lesser radius and a portion of greater radius, said rotatable member being mounted with its circumference engaging the tape cable and on rotation to draw the tape cable longitudinally across said tooth so that said tooth ploughs through said insulating medium to establish electrical contact with said metallic tape.
  • An electrical connector for a tape cable comprising a metallic tape or tapes embedded side by side in an insulating medium
  • the connector comprising a housing carrying at least one electrical contact having at least one tooth for contact with said metallic tape in said cable, clamping means arranged to clamp the tape cable and a rotatable member having a circumference having a portion of lesser radius and a portion of greater radius, said rotatable member being mounted with its circumference engaging the tape cable whereby rotation of the rotatable member causes said portion of said circumference having said greater radius to engage the tape cable and thus to increase the length of the path of the tape cable from said clamping means to said tooth to cause said tooth to plough through said insulating medium. to establish electrical contact with said metallic tape.

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  • Coupling Device And Connection With Printed Circuit (AREA)
  • Multi-Conductor Connections (AREA)
  • Connections By Means Of Piercing Elements, Nuts, Or Screws (AREA)

Abstract

An electrical connector for a tape cable which consists of metallic tapes embedded side-by-side in an insulating medium consisting of a housing carrying an electrical contact, a rotatable member within the housing and having a portion of its diameter of greater radius and a portion of lesser radius means for clamping the tape cable with respect to the housing. The rotatable member engages the tape cable within the housing so that, when the connector is assembled and the member rotated, the portion of the rotatable member having the greater radius comes into contact with the tape cable and the cable is drawn longitudinally across the teeth on the electrical contact so that the teeth plough through the insulating medium and establish electrical contact with the metallic tape.

Description

United States Patent 72] inventor Kenneth 1F. Bridle London, England [21] 1 Appl. No. 826,641 [22] Filed May 21, R969 [45] Patented Nov. 116, 19711 [73 Assignee A. B. Electronic Components Limited Abercynon, Glamor-gen, Wales [32] Priority May 22, 1968 3 3 1 Great Britain [31 24,429/68 54] ELECTRICAL CONNECTORS 5 Claims, 4 Drawing Figs.
[52] US. Cl 339/99 1R, 3 39/ l 76 MF [51] Int. Cl H0lrlll/20 [50] Field olSearch 339/17, 75, 95, 97-99, 176
[5 6] References Cited UNITED STATES PATENTS 3,365,695 1/1968 Harvey et al 339/99 Primary Examiner-loseph H. McGlynn Atlorney-Watson, Cole, Grindle & Watson ABSTRACT: An electrical connector for a tape cable which consists of metallic tapes embedded side-by-side in an insulating medium consisting ofa housing carrying an electrical contact. a rotatable member within the housing and having a portion of its diameter of greater radius and a portion of lesser radius means for clamping the tape cable with respect to the housing. The rotatable member engages the tape cable within the housing so that, when the connector is assembled and the member rotated, the portion of the rotatable member having the greater radius comes into contact with the tape cable and the cable is drawn longitudinally across the teeth on the electrical contact so that the teeth plough through the insulating medium and establish electrical contact with the metallic tape.
ELECTRICAL CONNECTORS The present invention relates to connectors for making electrical connections to a tape cable comprising a metallic tape or side-by-side metallic tapes embedded in an insulating medium.
According to the present invention an electrical connector for a tape cable comprises a housing carrying at least one electrical contact having at least one tooth for contact with a metallic tape in the cable and a rotatable member mounted to engage the tape cable and on rotation to draw the tape cable longitudinally across the tooth so that the tooth ploughs through the insulating medium to establish electrical contact with a metallic tape.
Preferably clamping means are provided for clamping the cable with respect to the housing.
There may be a backing surface opposite the rotatable member arranged for the passage of the tape cable between the backing surface and the rotatable member and preferably the backing surface is resilient as by being of rubber.
Preferably, the circumference of the rotatable member has a portion of lesser radius and a portion of greater radius; for example the rotatable member may be a circular cylinder having a flat thereon. Thus, as the member is rotated and the por tion of greater radius comes into contact with the tape cable the length of the path of the cable will be increased putting the cable in tension and causing the teeth to plough through the insulating medium so as to make contact with the metallic tapes in the tape cable.
Alternatively the rotation of the rotatable member may winch the cable longitudinally with respect to the housing so that as the cable moves the teeth plough through the insulating medium and make contact with the metallic tapes in the cable.
Preferably there is an electrical contact for each metallic tape and the contacts may be spaced apart in an insulating material.
Preferably there is a resilient pad adjacent the teeth and a spring on the opposite side of the contact urging the teeth towards the pad.
The invention may be performed in various ways and one connector embodying the invention will now be described by way of example with reference to the accompanying drawing, in which:
FIG. I is a longitudinal section of the connector in the closed position;
FIG. 2 is an end elevation of the contact carrier, and
FIGS. 3 and 4 are respectively a plan and a side elevation to a smaller scale of the connector mounted on a tape cable.
The connector includes a casing having an upper portion and a lower portion 11; the lower portion is provided with a channel faced with rubber 12 to accommodate the tape cable 13 which consists of a number, for example 19, strips 13a of copper embedded side by side in a plastics insulator. The two members may be clamped together with screws 14 and 15, one pair at the front and one pair at the rear of the connector.
A recess 16 is formed in the inner surface of the upper portion 10 so that when the two portions are clamped together the recess 16 in the top portion add a recess 17 in the lower portion combine to form a chamber which contains a rotatable member 18, which is in the form of a circular cylinder with a flat 19 and has journals 20 of reduced diameter at the ends by which the rotatable member is mounted in semicircular recesses in the mating edges of the upper and lower portions of the casing. The ends of the journals have screwdriver slots 2] by means ofwhich the rotatable member may be turned.
Contact with each metallic tape in the tape cable is made by means of an electrical contact 22. The contacts are held loosely in an insulating contact carrier 23 and are prevented from moving longitudinally by shoulders 24 and 25 at each end of each contact. The edge of each contact facing the lower portion 11 of the casing is provided with teeth 26 for a purpose to be hereinafter described. A recess 29 in the upper portion 10 of the casing houses a rectangular convoluted spring 27 which extends across the whole width of the tape cable and contact carrier 23.
When the connector is to be assembled, the tape is guided within the longitudinal channel until it abuts a stop member 28 on the lower portion 111 of the connector. The rotatable member 1% is placed over the tape with the flat 19 facing the tape. The convoluted spring 27 and the contact carrier 23 are assembled in he upper portion 10 which is placed over the lower portion and the pairs of screws M and 15 are tightened. The rear pair of screws M clamp the tape cable between the two members 10 and II where the cable passes out of the easing and the front pair of screws press the teeth 26 against or perhaps into the cable.
In order to make electrical contact with the metallic strips in the tape cable, the rotatable member I8 is rotated clockwise as viewed in FIG. ll until the circular part of the sur face of the member is in contact with the tape. This will have the effect of increasing the length of the path of the tape between the two clamping positions as. the rubber l2 and the tape will be urged downwardly. The tape will be put in tension and the teeth 25 will plough through the tape until they are in contact with the metallic strips as shown in FIG. 1.
Alternatively it is possible that merely by rotating the member 18 the tape will be drawn longitudinally with respect to the two portions and 11 of the casing and so cause the teeth 26 to plough through the cable until the metallic strips are reached. The contacts and tape cable are sandwiched between the spring 27 and the rubber 12. The spring 27 pro vides even pressure across the whole width and length of the carrier 23 while the rubber presses the metallic strips into contact with the full length of the lower edges of the teeth 26 as can be seen in FIG. 1.
The connector described above is for use at the end of a cable and is the male member of a plug and socket connector. The female member may be of the same general construction with a modified contact carrier and contacts. The contact terminals may take various other forms. For example, they may be formed as wrapping posts of solder wells or tags. A connector for permanently joining two cables may be made having a left-hand half which is substantially as the complete connector described above and a right-hand half which is symmetrical with the left-hand half, the contacts being formed with a set of teeth at each end.
What we claim as our invention and desire to secure by Letters Patent is:
1. An electrical connector for a tape cable comprising a metallic tape or tapes embedded side by side in an insulating medium, the connector comprising a housing carrying at least one electrical contact having at least one tooth for contact with said metallic tape in said cable and a rotatable member having a circumference having a portion of lesser radius and a portion of greater radius, said rotatable member being mounted with its circumference engaging the tape cable and on rotation to draw the tape cable longitudinally across said tooth so that said tooth ploughs through said insulating medium to establish electrical contact with said metallic tape.
2. The electrical connector of claim I wherein said rotatable member is a circular cylinder having a flat thereon.
3. An electrical connector for a tape cable comprising a metallic tape or tapes embedded side by side in an insulating medium, the connector comprising a housing carrying at least one electrical contact having at least one tooth for contact with said metallic tape in said cable, clamping means arranged to clamp the tape cable and a rotatable member having a circumference having a portion of lesser radius and a portion of greater radius, said rotatable member being mounted with its circumference engaging the tape cable whereby rotation of the rotatable member causes said portion of said circumference having said greater radius to engage the tape cable and thus to increase the length of the path of the tape cable from said clamping means to said tooth to cause said tooth to plough through said insulating medium. to establish electrical contact with said metallic tape.
4. The electrical connector of claim 3 wherein a resilient pad is provided adjacent said tooth and a spring on the opposite side of said contact from said resilient pad, said spring urging said tooth towards said pad.
5. The electrical connector of claim 4 wherein said tooth has a chisel edge to assist penetration through said insulating medium. 5

Claims (5)

1. An electrical connector for a tape cable comprising a metallic tape or tapes embedded side by side in an insulating medium, the connector comprising a housing carrying at least one electrical contact having at least one tooth for contact with said metallic tape in said cable and a rotatable member having a circumference having a portion of lesser radius and a portion of greater radius, said rotatable member being mounted with its circumference engaging the tape cable and on rotation to draw the tape cable longitudinally across said tooth so that said tooth ploughs through said insulating medium to establish electrical contact with said metallic tape.
2. The electrical connector of claim 1 wherein said rotatable member is a circular cylinder having a flat thereon.
3. An electrical connector for a tape cable comprising a metallic tape or tapes embedded side by side in an insulating medium, the connector comprising a housing carrying at least one electrical contact having at least one tooth for contact with said metallic tape in said cable, clamping means arranged to clamp the tape cable and a rotatable member having a circumference having a portion of lesser radius and a portion of greater radius, said rotatable member being mounted with its circumference engaging the tape cable whereby rotation of the rotatable member causes said portion of said circumference having said greater radius to engage the tape cable and thus to increase the length of the path of the tape cable from said clamping means to said tooth to cause said tooth to plough through said insulating medium to establish electrical contact with said metallic tape.
4. The electrical connector of claim 3 wherein a resilient pad is provided adjacent said tooth and a spring on the opposite side of said contact from said resilient pad, said spring urging said tooth towards said pad.
5. The electrical connector of claim 4 wherein said tooth has a chisel edge to assist penetration through said insulating medium.
US826641A 1968-05-22 1969-05-21 Electrical connectors Expired - Lifetime US3621449A (en)

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GB2442968 1968-05-22

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US (1) US3621449A (en)
JP (1) JPS5131958B1 (en)
DE (1) DE1926154A1 (en)
FR (1) FR2009137A1 (en)
GB (1) GB1227566A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3727170A (en) * 1971-04-20 1973-04-10 Gte Sylvania Inc Flat cable connector
US3760334A (en) * 1971-09-24 1973-09-18 Electronics Components Ltd Ab Connectors
US3860316A (en) * 1973-07-06 1975-01-14 Western Electric Co Electrical connecting devices for terminating cords and methods of assembling the devices to cords
EP0008484A1 (en) * 1978-08-18 1980-03-05 E.I. Du Pont De Nemours And Company End connector for flexible printed circuits
US4221445A (en) * 1978-02-02 1980-09-09 Amp Incorporated Cross connect distribution system and apparatus
US4647131A (en) * 1985-01-22 1987-03-03 E. I. Du Pont De Nemours And Company Connector with conductor retention means
US5217389A (en) * 1992-09-02 1993-06-08 General Electric Company Adjustable strain relief for wiring devices
US5338222A (en) * 1993-02-01 1994-08-16 Hubbell Incorporated Clamping assembly for electrical cables

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR900007576B1 (en) * 1983-07-04 1990-10-15 도요구니 사사끼 덴센 가부시끼가이샤 Plug socket for a flat cable

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1433525A (en) * 1965-02-17 1966-04-01 Inovac Sa Connection device for flexible electric cable and plug by applying
US3365695A (en) * 1966-03-01 1968-01-23 Nat Res Dev Connectors for use on flexible tape conductors
US3432799A (en) * 1965-10-27 1969-03-11 Painton & Co Ltd Electrical connectors for ribbon conductors of cable tape
US3477059A (en) * 1967-01-24 1969-11-04 Mcmurdo Instr Co Ltd The Connectors for laminar electric cables
US3501735A (en) * 1968-06-21 1970-03-17 Westinghouse Electric Corp Latchable electrical connector assemblage

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1433525A (en) * 1965-02-17 1966-04-01 Inovac Sa Connection device for flexible electric cable and plug by applying
US3432799A (en) * 1965-10-27 1969-03-11 Painton & Co Ltd Electrical connectors for ribbon conductors of cable tape
US3365695A (en) * 1966-03-01 1968-01-23 Nat Res Dev Connectors for use on flexible tape conductors
US3477059A (en) * 1967-01-24 1969-11-04 Mcmurdo Instr Co Ltd The Connectors for laminar electric cables
US3501735A (en) * 1968-06-21 1970-03-17 Westinghouse Electric Corp Latchable electrical connector assemblage

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3727170A (en) * 1971-04-20 1973-04-10 Gte Sylvania Inc Flat cable connector
US3760334A (en) * 1971-09-24 1973-09-18 Electronics Components Ltd Ab Connectors
US3860316A (en) * 1973-07-06 1975-01-14 Western Electric Co Electrical connecting devices for terminating cords and methods of assembling the devices to cords
US3954320A (en) * 1973-07-06 1976-05-04 Western Electric Company, Inc. Electrical connecting devices for terminating cords
US4221445A (en) * 1978-02-02 1980-09-09 Amp Incorporated Cross connect distribution system and apparatus
EP0008484A1 (en) * 1978-08-18 1980-03-05 E.I. Du Pont De Nemours And Company End connector for flexible printed circuits
US4647131A (en) * 1985-01-22 1987-03-03 E. I. Du Pont De Nemours And Company Connector with conductor retention means
US5217389A (en) * 1992-09-02 1993-06-08 General Electric Company Adjustable strain relief for wiring devices
US5338222A (en) * 1993-02-01 1994-08-16 Hubbell Incorporated Clamping assembly for electrical cables

Also Published As

Publication number Publication date
GB1227566A (en) 1971-04-07
DE1926154A1 (en) 1969-11-27
FR2009137A1 (en) 1970-01-30
JPS5131958B1 (en) 1976-09-09

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