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Publication numberUS3715457 A
Publication typeGrant
Publication dateFeb 6, 1973
Filing dateJun 9, 1971
Priority dateJun 30, 1970
Also published asCA932419A, CA932419A1, DE2131216A1, DE2131216B2, DE2131216C3
Publication numberUS 3715457 A, US 3715457A, US-A-3715457, US3715457 A, US3715457A
InventorsCampari L, Teagno W
Original AssigneeAmp Inc
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Two piece flat cable connector
US 3715457 A
Abstract
A bipartite connector for a flat cable conductor comprises a first element having a lance portion and an electrical contact portion; a second element of generally channel-shaped cross-section comprising a base and two side walls, an integral tongue being struck from the base into the channel. To form a connection, the lance portion of the first element is caused to penetrate the top surface insulation of a flat conductor to contact the conductor longitudinally of the cable and the edges of the side walls of the second element are then caused to pierce the insulation lands laterally of the flat conductor and to be bent inwardly to contact the lance portion of the first element and clamp the lance portion and the flat conductor between the edges and the base.
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United. States Patent 1 Te ag no et al.

[54] TWO PIECE FLAT CABLE CONNECTOR [75] Inventors: Wladimiro Teagno; Luigi Campari,

[30] Foreign Application Priority Data June 30, 1970 Italy ..26773 A/70 [52] US. CL... ..l74/88 R, 174/117 FF, 339/95 R, 339/97 R, 339/276 T [51] Int. Cl. ..H0lr 5/00 [58] Field of Search [3174/84 C, 88 R, 117 FF, 95 R,

v 174/97 R, 276 T;'339 /95 R, 97 R, 97 C, 17 F, 223 R, 276 T; 29/628, 629

56 e References Cited UNITED STATES PATENTS v 3,079,458 2/1963 Hedstrom 174/1 17 FF [11] 3,715,457 51 Feb. 6, 1973 and John P. Vandenburg [57] ABSTRACT A bipartite connector for a flat cable conductor comprises a first element having a lance portion and an electrical contact portion; a second element of generally channel-shaped cross-section comprising a base and two side walls, an integral tongue being struck from the base into the channel. To form a connection, the lance portion of the first element is caused to penetrate the top surface insulation of a flat conductor to contact the conductor longitudinally of the cable and the edges of the side walls of the second element are then caused to pierce the insulation lands laterally of the flat conductor and to be bent inwardly to contact the lance portion of the first element and clamp the lance portion and the flat conductor between the edges and the base.

1 Claim,.4 Drawing Figures TWO PIECE FLAT CABLE CONNECTOR The invention relates to the electrical connection of flat cable conductors.

In our US. Pat. No. 3,395,381 there is described and claimed a flat cable connector having a channel-shaped cross-section comprising a base and two side walls, an integral lance struck from the base into the channel and a stop member behind the lance arranged to prevent the lance moving into the plane of the base, the edges of the side walls being adapted to pierce the insulation of a flat conductor and to be bent inwardly to make contact with a conductor; a method of connecting a flat cable conductor to such connector, comprising aligning the connector in overlying relationship to the conductor with the side walls extending towards the surfaceof the cable, pressing the side wallsthrough the cable, causing the side walls to curve inwardly so that their edges pierce the insulation and make contact with one side of the conductor, and pressing the other side of the cable in contact with the base of the connector sothat the lance pierces the insulation of the cable and contact the other side of the conductor and continuing to apply pressure until the lance abuts the stop member; and a connection between such a connector and'a flat cable conductor made by the method.

Such a connector is of great value interminating flat cable comprising flat conductors arranged in generally parallel spaced relation and bonded between top and tendency for the insulation of such cable to resist penetration by the abbve-inentioned connector and the invention concerns connectors specifically for such cable.

Aflat cable bipartite connector according to the invention comprises 'afirst element having a lance portion and an electrical contact portion; a second element of generally channel-shaped cross-section comprising a base and opposite side-walls, an integral tongue being struck from the base into the channel; the lance portion of the first element being adapted to penetrate theinsulation covering a surface of a flat 'cohductor to contact the conductor longitudinally of the cable, the edges of the side walls of the second element being adapted to pierce the insulation lands laterally of the flat conductor after penetration of the "lance portion of the first element and to be bent inwja'rdly. to contact the lance portion of the first element and urge'it towardsthe base- The invention includes a connection of a flat cable conductor and a connector of the invention, the lance jportion of the first element lying longitudinally of the cable between a surface of the flat conductor and the adjacent surface insulation,'the.side wallsof the second elementpenetrating the insulation lands laterally of the flat conductor and bent inwardly of the channel with their longitudinal edges contacting the lance portion, the lance "portion and'the flat conductor being urged towards thebase.

The invention is described by way of example with reference to the accompanying partly diagrammatic drawings, in whichr FIG. 1 is a perspective view of a portion of a flat cable having connectors of the invention;

FIG. 2 is a perspective view of the first and second elements ofa connector in loose piece condition;

FIG. 3 is a transverse sectional view of one of the connections of FIG. 1; and

FIG. 4 is a longitudinal section taken on the lines IVIV of FIG. 3.

The flat cable 1 of FIG. 1 comprises flat conductive strips 2, usually composed of copper, arranged in generally parallel spaced relation longitudinally of the cable. Layers of insulating material 3 are located above and below the flat conductors 2. The layers are bonded together to form thin insulating lands 4 between adjacent conductors and at the longitudinal free edges of the cable. The conductors 2 are left relatively loose within conduits between adjacent insulation lands 4.

The connector of FIG. 2 comprises a first element 5 and a second element 6, each formed with others, not

shown, in strip form from electrically conductive resilient metal. The first element 5 has a forward lance portion 7 and a rearward contact portion comprising lateral lugs 8 for crimping connectionto a wire, not shown. The second element 6 is of channel-shape cross-section having a base 9 and upstanding side walls 10. The longitudinal edges of the side walls are bevelled as shown to define insulation piercing edges 11. A pair of opposite inwardly directed tongues 12 is struck up from the base 9.

In use, the lance portion 7 of a first element 5 is forced to penetrate an insulating layer about a flat con ductor 2 either adjacent an end of the cable or intermediate the cable ends. A second element 6 is then brought from below the conductor 2 with the side walls 10 longitudinally aligned with the insulation lands 4 on each side of that flat conductor. The second element 6 v is then forced upwardly to cause the piercing edges 11 to pierce the lands and then the side walls 10 to penetrate the lands. The portions of the side wall 10 above the lance portion 7 are then bent overtowards the lance portion until the edges 11 pierce the top insulating layer to contact the lance portion and to the condition of FIG. 3. The lance portion 7 of the first element 5 strengthens the flat conductor 2 to provide a counterforce to the deformation of the second element 6 and acts as a wedge to increase the mechanical strength of the connection. The lance portion and the conductor 2 are clamped together between the free edge 11 on one side and the tongues 12 on the other and this causes extrusion of the metal so cutting through oxide film and ensuring a good electrical connection.

We claim:

l. A connection of a flat cable conductor and a bipartite connector, the connector comprising a first element having a lance portion and a contact portion, a second element of channel-shaped cross-section comprising a base and opposite side walls, an integral tongue being struck from the base into the channel, the lance portion of the first element lying longitudinally of the cable between a surface of a fiat conductor and an adjacent insulating surface, the side wallsof the second element penetrating insulation lands laterally of the flat conductor and being bent inwardly of the channel with their longitudinal edges in contact with the lance portion, the lance portion and the flat conductor being urged towards the base of the channel.

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US3079458 *Nov 9, 1959Feb 26, 1963Thomas & Betts CorpFlexible tape conductors
US3395381 *Nov 25, 1966Jul 30, 1968Amp IncCrimpable connecting device for flat conductor cable
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3960430 *Oct 29, 1974Jun 1, 1976Amp IncorporatedFlat wiring system and crimped connection
US4264118 *May 25, 1979Apr 28, 1981Bunker Ramo CorporationInsulation-pierce and crimp termination and method for effecting same
US4270828 *Oct 22, 1979Jun 2, 1981General Electric CompanyImproved capacitor lead clips
US4302065 *Mar 28, 1980Nov 24, 1981Western Electric Company, IncorporatedFlat cable assembly and methods of terminating and connectorizing the cable of same
US4357065 *Jun 13, 1980Nov 2, 1982Amp IncorporatedTerminal for connection to a flat conductor
US4364623 *Sep 23, 1980Dec 21, 1982Sgl Industries, Inc.Solderless universal outlet
US4500152 *Sep 30, 1982Feb 19, 1985Sl Industries, Inc.Universal outlet
US4602840 *Jun 1, 1984Jul 29, 1986Harvey Hubbell IncorporatedUnder-carpet connection system
US4636017 *Aug 29, 1985Jan 13, 1987Harvey Hubbell IncorporatedFlat conductor cable
US4644092 *Jul 18, 1985Feb 17, 1987Amp IncorporatedShielded flexible cable
US4949454 *Nov 8, 1989Aug 21, 1990Kabelmetal Electro GmbhMethod for making an electrical connection to a flat electrical conductor
US4963699 *Apr 7, 1989Oct 16, 1990Sumitomo Electric Industries, Ltd.Apparatus for connecting sets of electric wires to lead wires
US5139436 *Jan 14, 1991Aug 18, 1992Petri AgElectrical connecting element for rotating parts
US5195908 *Sep 13, 1991Mar 23, 1993Sumitomo Wiring Systems, Ltd.Multicircuit cable connector
US5549483 *Jun 13, 1994Aug 27, 1996The Whitaker CorporationElectrical terminal with lead strain relief means
US5561266 *Sep 6, 1994Oct 1, 1996Yazaki CorporationCable connector
US6350145Jan 5, 2000Feb 26, 2002Japan Solderless Terminal Mfg. Co., Ltd.Flexible printed circuit board crimp terminal and crimping structure for core therewith
US6392148 *Mar 28, 2000May 21, 2002Furukawa Electric Co., Ltd.Wire harness joint
US6461188 *May 31, 2001Oct 8, 2002Saint-Gobain Glass FranceSolderable electrical connection element with a solder deposit
US6565376 *Feb 20, 2001May 20, 2003Yazaki CorporationFlat cable terminal
US6652310 *Dec 18, 2002Nov 25, 2003Yazaki CorporationConnecting member for flat circuit member and method of connecting the connecting member and the flat circuit member
US6686544 *Apr 23, 2002Feb 3, 2004Autonetworks Technologies, Ltd.Wiring material and method for manufacturing the same
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Classifications
U.S. Classification174/88.00R, 174/117.0FF, 439/877, 439/422, 439/423, 439/426
International ClassificationH01R4/24, H01R4/10, H01R4/18
Cooperative ClassificationH01R4/188, H01R4/2495, H01R4/182
European ClassificationH01R4/18F, H01R4/24F