US3599173A - Electrical connectors - Google Patents

Electrical connectors Download PDF

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Publication number
US3599173A
US3599173A US826639A US3599173DA US3599173A US 3599173 A US3599173 A US 3599173A US 826639 A US826639 A US 826639A US 3599173D A US3599173D A US 3599173DA US 3599173 A US3599173 A US 3599173A
Authority
US
United States
Prior art keywords
tape
housing
cable
spring
assembly
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
US826639A
Other languages
English (en)
Inventor
Kenneth F Bridle
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.)
AB Electronic Components Ltd
Original Assignee
AB Electronic Components 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 AB Electronic Components Ltd filed Critical AB Electronic Components Ltd
Application granted granted Critical
Publication of US3599173A publication Critical patent/US3599173A/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
    • 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

Definitions

  • An electrical connector for attachment to a tape cable comprises a four-layer sandwich consisting of a toothed 9 Claims, 6 Drawing Figs.
  • This invention relates to connectors for making electrical connections with a tape cable and to methods of attaching the connector to the cable.
  • Tape cables comprise a metallic tape or side-by-side metallic tapes embedded in an insulating material such as a flexible plastics material.
  • Connectors have already been proposed for making electrical connections with the metallic tapes of such cables, the connectors comprising a contact for each individual tape, each contact having at least one tooth arranged to penetrate the insulating material and make contact with the metallic tape.
  • the connectors so far proposed have been somewhat complex and have been so constructed that to connect them to the tape cable a somewhat complex and timeconsuming procedure is necessary.
  • a method of attaching a tape cable connector to a tape cable comprises: assembling together the tape cable, at least one contact having at least one tooth arranged to penetrate the insulating material on one side of the cable, a bolster on the other side of the cable, and a spring; pressing the assembly together to compress'the spring; and inserting the compressed assembly endwise into a housing which is arranged to retain the assembly with the spring compressed.
  • the assembly (which may be considered as a multilayer sandwich consisting of the cable, contact, bolster and spring) may be pressed into the housing by a process similar to that of corking a bottle.
  • the tape cable is drawn longitudinally across the tooth which ploughs through the insulating material to improve or to establish electrical contact with a metallic tape.
  • the tape may be clamped to the housing so as to transfer loads between the cable and the housing, thus relieving the portion of the cable in contact with the teeth of such loads.
  • a very satisfactory way of clamping the tape is by crimping a portion of the housing on to the tape.
  • the method of assembly makes it possible to employ a simple one-piece housing which may be generally tubular and preferably has a flared mouth to assist the insertion of the as sembly into the housing.
  • the housing has inwardly directed means such as dimples, barbs or setscrews for retaining the assembly in the housing.
  • FIG. 1 is a plan view of the connector attached to the tape cable
  • FIG. 2 is a section on the line ll-ll of FIG. 1 showing the attached connector
  • FIG. 3 shows the components of the connector prior to attachment to the tape cable
  • F lGS. 4, 5 and 6 show successive stages in the process of attachment.
  • the connector has a one-piece metal housing I which is approximately rectangular in cross section perpendicular to the plane ofsection of FIG. 2 and has a flared portion 2 leading away from an open mouth 3, a portion 4 of constant cross section behind the flared portion, a portion 5 of reducing cross section, and a flared portion 6.
  • the connector is attached to a tape cable 7, which comprises l4 metal tapes 8 which are embedded sideby-side in a plastics insulating material.
  • Contact with the tapes is made by 19 contact members 10 each of which is made from a bar of brass and has flanges 11 and 12 on one side at the ends to retain the bar longitudinally in a groove in a common insulating contact carrier 13.
  • the bar On the opposite side from the flanges, the bar has two chisebshaped teeth 15 having sharp leading edges 150 with relieved surfaces 15b behind them.
  • the connector also includes a bolster in the form of a resilient pad 16 and, on the other side of the contact carrier 13, a rectangular convoluted plate spring 17 which has a constant cross section (shown in FIG. 2) and extends across the entire width of the contact carrier.
  • the connector is attached to the tape cable in the following way. As shown in FIG. 3, the end of the tape cable 7 is passed right through the housing 1 so that it extends some distance beyond the housing. The pad 16 is placed underneath the tape cable and the contact carrier 13 with the contacts 10 is placed on top of the cable. The spring is placed on top of the contact carrier 13. This four-layer sandwich is then placed between the jaws 18 of a tool which is not shown in the drawings. The jaws are then moved together to compress the sandwich. The flared mouth 3 of the housing is then moved against the jaws 18 on one side and a pusher element 19 is moved against the sandwich on the other side.
  • Movement of the pusher element is continued to push the sandwich through the flared mouth and into the section 4 of the housing where the sandwich is retained primarily by friction produced by the expanding force of the spring 17 and the pad 16, but also by means of barbs 20 formed by inwardly directed tongues stamped from the sides of the housing.
  • the jaws 21 of another tool then grip the tool cable and, while the housing is held stationary, the jaws 21 draw the cable across the teeth to the right (as viewed in FIG. 5) and this causes the teeth to plough into the insulation of the tape cable and make reliable electric contact with the metal tapes along the full length of the relieved surfaces 151; of the teeth.
  • the tape cable is then anchored to the rear part of the housing behind the compressed sandwich by crimping the rear part of the housing on to the tape cable by means of crimping jaws 22. This completes the process, as shown in FIG. 6, and the jaws 21 and 22 may be opened to release the connector.
  • the jaws 18 may be af forded by a hand tool similar to hand crimpers and having means for limiting the approach of the two jaws towards one another.
  • the other jaws may also be afforded by simple hand tools.
  • one or more simple powered tools can be devised for carrying out the several stages of the process.
  • a method of attaching a tape cable connector to a tape cable consisting of a least one metallic tape embedded in insulating material comprising:
  • a multilayer assembly which comprises superimposed on one another layers comprising at least one electrical contact having at least one tooth extending through the insulating material on one side of said cable into electrical contact with said metallic tape, a bolster on the opposite side of said cable, and a spring;
  • said multilayer assembly being located between opposite inwardly facing wall surfaces of said housing with the longitudinal axis of the layers aligned with the longitudinal axis ofthe housing;
  • said walls being spaced apart by such a distance that said spring is compressed whereby to press said tooth against said metallic tape.
  • a multilayer assembly which comprises superimposed on one another layers comprising at least one electrical contact having at least one tooth extending through the insulating material on one side of said tape cable into electrical contact with said metallic tape, a bolster on-the opposite side of said cable, and a spring;
  • said multilayer assembly being located between opposite inwardly facing wall surfaces of the housing with the longitudinal axis of the layers aligned with the longitudinal axis of the housing;
  • said walls being spaced apart by such a distance that said spring is compressed whereby to press the said tooth against said metallic tape.

Landscapes

  • Coupling Device And Connection With Printed Circuit (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Processing Of Terminals (AREA)
  • Manufacturing Of Electrical Connectors (AREA)
  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
  • Multi-Conductor Connections (AREA)
US826639A 1968-05-22 1969-05-21 Electrical connectors Expired - Lifetime US3599173A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB24430/68A GB1245122A (en) 1968-05-22 1968-05-22 Electrical connectors

Publications (1)

Publication Number Publication Date
US3599173A true US3599173A (en) 1971-08-10

Family

ID=10211616

Family Applications (1)

Application Number Title Priority Date Filing Date
US826639A Expired - Lifetime US3599173A (en) 1968-05-22 1969-05-21 Electrical connectors

Country Status (5)

Country Link
US (1) US3599173A (de)
JP (1) JPS5211037B1 (de)
DE (1) DE1926153A1 (de)
FR (1) FR2009139A1 (de)
GB (1) GB1245122A (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3736627A (en) * 1971-11-02 1973-06-05 Betts T Corp Connector
US4859205A (en) * 1988-05-13 1989-08-22 Amp Incorporated Strain relief for flat cable termination
US4915650A (en) * 1988-05-13 1990-04-10 Amp Incorporated Electrical terminals and method for terminating flat power cable
US4938713A (en) * 1987-05-14 1990-07-03 Amp Incorporated Electrical terminal for wave crimp termination of flat power cable

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006127961A (ja) * 2004-10-29 2006-05-18 Sumitomo Wiring Syst Ltd 平形導体用コネクタ

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2725545A (en) * 1953-12-28 1955-11-29 Gordon Harry Electrical connector having insulation penetrating means contactiong the conductors
US2753392A (en) * 1952-12-05 1956-07-03 Edward S Hebeler Cable connections
US2769154A (en) * 1949-08-23 1956-10-30 Acad Electrical Prod Corp Electrical connector
DE1097507B (de) * 1957-02-13 1961-01-19 Minnesota Mining & Mfg Elektrischer Verbinder
US3477059A (en) * 1967-01-24 1969-11-04 Mcmurdo Instr Co Ltd The Connectors for laminar electric cables

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2769154A (en) * 1949-08-23 1956-10-30 Acad Electrical Prod Corp Electrical connector
US2753392A (en) * 1952-12-05 1956-07-03 Edward S Hebeler Cable connections
US2725545A (en) * 1953-12-28 1955-11-29 Gordon Harry Electrical connector having insulation penetrating means contactiong the conductors
DE1097507B (de) * 1957-02-13 1961-01-19 Minnesota Mining & Mfg Elektrischer Verbinder
US3477059A (en) * 1967-01-24 1969-11-04 Mcmurdo Instr Co Ltd The Connectors for laminar electric cables

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3736627A (en) * 1971-11-02 1973-06-05 Betts T Corp Connector
US4938713A (en) * 1987-05-14 1990-07-03 Amp Incorporated Electrical terminal for wave crimp termination of flat power cable
US4859205A (en) * 1988-05-13 1989-08-22 Amp Incorporated Strain relief for flat cable termination
US4915650A (en) * 1988-05-13 1990-04-10 Amp Incorporated Electrical terminals and method for terminating flat power cable

Also Published As

Publication number Publication date
DE1926153A1 (de) 1969-11-27
FR2009139A1 (de) 1970-01-30
GB1245122A (en) 1971-09-08
JPS5211037B1 (de) 1977-03-28

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