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Publication numberUS3675180 A
Publication typeGrant
Publication dateJul 4, 1972
Filing dateSep 8, 1970
Priority dateNov 6, 1969
Also published asCA921581A1, DE2051273A1, DE2051273B2, DE2051273C3
Publication numberUS 3675180 A, US 3675180A, US-A-3675180, US3675180 A, US3675180A
InventorsAlan William Ronald Podmore
Original AssigneeAmp Inc
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Flat cable connector
US 3675180 A
Abstract
An electrical connector for flat cable, comprising a generally planar sheet metal base having a post receptacle extending generally normally of the base and at least one pair of ears defining a crimping ferrule struck from the base.
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Description  (OCR text may contain errors)

United States Patent Podmore July 4, 1972 1 FLAT CABLE CONNECTOR 1 References Cited [72] Inventor: Alan William Ronald Podmore, St. Albans, UNITED STATES PATENTS England 3,181,110 4/1965 Waters ..339/223 R 3,569,919 3/1971 Daddona ..339/223 R X [731 Ass'gnee- AMP Hm'sburg' 3,395,381 7/1968 Huffnagle 339/17 F x [22] Filed: Sept. 8, 1970 2,326,100 8/1943 Lavarack et al ..339/223 R 3,197,729 7/1965 Sarazen ..339/22() R X [Zll Appl. No: 70,137

Y FOREIGN PATENTS OR APPLICATIONS 1301 F i A li ti p i m 1,1 14,461 5/1968 Great Britain ..339/1 7 F Nov. 6, 1969 Great Britain ..54,405/69 primary Examiner Ma1-vin Champion Assistant Examiner-Terrell P. Lewis [52] U.S.CI. ..339/l7 F,339/l7 C, 339/95 R, Att0rney-William .1. Keating, Ronald D. Grefe, Gerald K.

339/223, 339/256, 339/276 Kita, Frederick W. Raring, Jay L..Seitchik and John P.-Van- [51] Int. Cl ..ll0lr 15/12, HOSk 1/10 denburg [58] Field of Search ..339/l7 R, 17 C, 17 E, 17 F,

339 17 L, 18 P, 19, 20, 21, 22, 32, 33, 95 R, 95 D, 1 1 ABSTRACT 96, 97,99,1l9,149,150,151,176 R, 176 MP, 176 ME, 191 R, 191 M, 198 R, 198 E, 198 K, 198 J, 216,217 R,2l7 8,219, 220, 256, 276

An electrical connector for flat cable, comprising a generally planar sheet metal base having a post receptacle extending generally normally of the base and at least one pair of ears defining a crimping ferrule struck from the base.

4 Claims, 3 Drawing Figures FLAT CABLE CONNECTOR The invention relates to a connector for a flat cable, by which is meant a cable having spaced generally coplanar conductors embedded in insulating laminae, as in ribbon and tape cable, or an insulated printed circuit comprising spaced conductors on a rigid or flexible insulating support with an insulating film on the exposed face of the conductor.

A problem with such flat cables is the need to remove insulation in connecting a conductor of the flat cable to a contact post.

An electrical connector for flat cable, according to the invention, comprises a generally planar sheet metal base having a post receptacle extending generally normally of the plane of the base and at least one pair of ears defining a crimping f'errule struck from the base at a side of the post receptacle.

Preferably the post receptacle is fonned at or adjacent the midpoint of an elongate sheet metal base and a crimping ferrule is formed between a side of the post receptacle and each end of the elongate base so that the connector can be crimped to a conductor at two positions spaced longitudinally of the conductor. Preferably the connector is sufliciently wide to underlie and support the insulation lands on opposite sides of the conductor.

In a preferred method, a connector of the invention is so located adjacent a flat cable conductor that the crimping ears lie laterally of the conductor and are crimped to the cable by being forced through the lands and then folded over to contact the face of the conductor remote from the connector base. The flat cable so connected is advanced to a contact post, for

' example a contact pin extending from an instrument in a panel, and the post receptacle and contact post are forcefitted into telescopic engagement to connect the conductor of the flat cable and the contact post without stripping insulation from the flat cable.

The invention includes a connection formed of a flat cable and a connector of the invention, and also an assembly of the flat cable so connected and a contact post received in the post receptacle of the connector.

These and other objects, features and advantages of the present invention will be understood in greater detail from the following description and accompanying drawing:

FIG. 1 is a perspective view of a length of flat cable;

FIG. 2 is a perspective view of the invention; and

FIG. 3 is a perspective view of the connector of FIG. 2 crimped to the flat cable of FIG. 1.

The flat cable of FIG. 1 comprises generally coplanar electrically conductive tracks 1, preferably copper, embedded in and spaced apart by lands 2 of insulating material. Before the tracks 1 were sheathed some were punched with holes 3 in accordance with a pattern of contact posts, not shown, extending generally normally of a rear face of an instrument panel on which the flat cable is to be mounted, as explained below.

The connector of FIG. 2 is formed from sheet metal to comprise a flat base 4, generally rectangular in plan. A tubular post receptacle is extruded from the base 4, upwardly as shown in FIG. 2, at or adjacent the center of the base. The

receptacle 5 tapers away from the base 4 and the upper end of the receptacle 5 has short slits 6 extending towards the base. A crimping ferrule, generally indicated at 7, is formed from the 7 body of the base 4 between the receptacle 5 and each shorter side of the base. Each ferrule 7 is of generally channel crosssection and comprises a pair of spaced apart ears 8 struck from the base, and lances 9 are struck up from the floor of the base between the ears 8. The upper edges of the ears may be sharpened. The crimping ferrules 7 may be of the type described and claimed in US. Pat. No. 3,395,381.

In use, connectors are so located under the flat cable that a receptacle 5 of each connector protrudes through a respective hole 3 and the crimping ears lie on opposite sides of the respective conductive track 1. The crimping ears 8 are then crimped to the track 1 by being pierced through the insulating lands 2 on opposite sides of the track 1, and then folded over to extend through the insulation overlying the track 1 electrically to contact the face of the track 1 remote from the base 4, the upper face as shown, and compress the track between the ears and the base. The flat cable so connected is then advanced to the rear face of an instrument panel, not shown, with the holes 3 in alignment with contact pins protruding from the rear face of the instruments and force-fitted on to the panel, so causing the receptacles 5 to be push-fitted over the contact pins, the slits 6 enhancing the engagement of the pins and receptacles. In this way the conductors of a flat cable are electrically connected to contact posts without impairing the insulation sheath of the cable.

The post receptacle 5 may be formed separately from the base 4 and then riveted to the base 4 to form a connector of the invention. The base 4 may be so shaped that, in use, the post receptacle 5 protrudes through an insulation land 2 instead of a hole 3 preformed in a track 1.

I claim:

1. An electrical connection comprising a strip of flat cable, an electrical connector secured to said cable and having a generally planar base formed from sheet metal, an opening in said cable and said connector for receiving a contact post, and means on said connector, on opposite sides of said connector opening, securing said connector to said cable, said means comprising a pair of ferrules crimped to a conductor of said flat cable.

2. An electrical connection as set forth in claim 1 further comprising a post receptacle extending generally normally of the base in alignment with said opening in the connector for receiving a contact post.

3. An electrical connection as set forth in claim 1 wherein a pair of ferrules are disposed at each of said opposite sides of said connector opening.

4. A method of applying a connector to flat cable wherein the connector comprises a generally planar sheet metal base having a post receptacle extending generally normally of the base and at least one pair of ears defining a crimping ferrule struck from the base, said method comprising so locating the connector with respect to the cable that the crimping ears underlie insulation lands on opposite sides of a conductive track, preforming a hole in the conductive track, inserting the post receptacle through the hole, and crimping the ears to the track by forcing the ears through the insulation lands and folding them to contact the face of the track remote from the connector base.

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US2326100 *Jul 2, 1941Aug 3, 1943Railroad Accessories CorpWire terminal
US3181110 *Jul 24, 1961Apr 27, 1965Raborg Jessie HSolderless electric connector
US3197729 *Aug 9, 1962Jul 27, 1965Burndy CorpSemi-rivet connector
US3395381 *Nov 25, 1966Jul 30, 1968Amp IncCrimpable connecting device for flat conductor cable
US3569919 *Jul 23, 1969Mar 9, 1971Scovill Manufacturing CoSnap electrical connector
GB1114461A * Title not available
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3713072 *Sep 30, 1971Jan 23, 1973Amp IncElectrical connections to flat conductor cable
US3768062 *Sep 28, 1971Oct 23, 1973Molex IncTerminal for flexible circuits
US3845456 *Jul 17, 1972Oct 29, 1974Molex IncClinchable terminals
US4576426 *Apr 11, 1985Mar 18, 1986General Motors CorporationFlexible printed circuit connector and contact eyelet therefor
US6332805 *Mar 5, 2001Dec 25, 2001Yazaki CorporationStructure for connecting flat circuit member
US6364668Jan 22, 2001Apr 2, 2002Molex IncorporatedElectrical connection system and method for flat circuits
US6835089Nov 27, 2002Dec 28, 2004Fci Americas Technology, Inc.Flex cable and IDC electrical wiring harness assembly
US7316581 *Oct 19, 2006Jan 8, 2008Yazaki CorporationTerminal fitting and method of attaching the same
US7406762 *Mar 14, 2007Aug 5, 2008K.S. Terminals, Inc.Method of fabricating an electrical terminal connector
DE4034690A1 *Oct 31, 1990Nov 28, 1991Amphenol Tuchel ElectDirect pressure connector esp. for flexible circuit boards - exerts strong retentive force from eccentric lever onto overlapped ends mutually aligned by clamping strip
EP0020031A2 *May 2, 1980Dec 10, 1980AMP INCORPORATED (a New Jersey corporation)Electrical connector for flat cable
EP0954058A2 *Apr 12, 1999Nov 3, 1999The Whitaker CorporationFlexible circuit electrical connector assembly
WO2003103097A1 *Feb 18, 2003Dec 11, 2003Bernd AupperleElectric plug connection for establishing an electrical connection between a plug connector and a ribbon conductor
Classifications
U.S. Classification439/877, 439/422
International ClassificationH01R12/08, H01R12/00, H01R4/18, H01R12/38, H01R4/24, H01R24/00, H01R4/10, H01R12/04, H01R4/00, H01R11/20
Cooperative ClassificationH01R4/182, H01R4/2495, H01R4/10, H01R12/69
European ClassificationH01R12/69, H01R4/10, H01R4/24F, H01R4/18F