US3818121A - Jointing clips for insulated conductors - Google Patents

Jointing clips for insulated conductors Download PDF

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Publication number
US3818121A
US3818121A US00326165A US32616573A US3818121A US 3818121 A US3818121 A US 3818121A US 00326165 A US00326165 A US 00326165A US 32616573 A US32616573 A US 32616573A US 3818121 A US3818121 A US 3818121A
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US
United States
Prior art keywords
channel
clip
insulating
metal clip
metal
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
US00326165A
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English (en)
Inventor
J Hilton
A Faulkner
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.)
Plessey Overseas Ltd
Original Assignee
Plessey Handel und Investments AG
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 Plessey Handel und Investments AG filed Critical Plessey Handel und Investments AG
Application granted granted Critical
Publication of US3818121A publication Critical patent/US3818121A/en
Assigned to PLESSEY OVERSEAS LIMITED reassignment PLESSEY OVERSEAS LIMITED ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: PLESSEY HANDEL UND INVESTMENTS AG, GARTENSTRASSE 2, ZUG, SWITZERLAND
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
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/24—Connections using contact members penetrating or cutting insulation or cable strands
    • H01R4/2495—Insulation penetration combined with permanent deformation of the contact member, e.g. crimping

Definitions

  • the insulating cover has, at the channel bottom, two bib-like end extensions with cut-outs for locating the two conductors to be joined in position for the crimping 0f the clip.
  • This invention relates to the jointing of insulated electrical conductors and has for an object to provide an improved channel-type jointing clip adapted for forming, by a crimping operation an insulated joint between two conductors placed side-by-side into the clip.
  • each joint a clip comprising a channel-type jointing clip of metal, into which the wires to be jointed electrically are placed side-by-side, and which is provided at its inner side with. insulationpiercing projections, while the outer side of the metal clip is covered with a layer of flexible insulating material so that when the channel walls are crimped-over against the channel bottom, with the insulated wires suitably positioned in the channel, the crimping opera tion will electrically interconnect the conductors while the insulating layer covering the channel ensures continuity of insulation along the conductor and protection against electrical contact between adjacent conductors.
  • a jointing clip of this kind will hereinafter be referred-to as an insulated channel-type jointing clip.
  • the flexible insulating layer of an insulated channel-type jointing clip is, at each end of the clip, extended in the longitudinal direction either at the bottom wall or at each of the side walls of the channel, to form a projecting apron, and each apron is near the end of the metal jointing clip, provided with a cut-out in each lateral edge that faces a line at which two walls of the channel are joined, so that when the apron is bent-over at least partially across the profile of the channel, each of two wires resting in the channel to extend longitudinally thereof can be engaged in such cut-out to hold that wire in a predetermined position on the bottom of the metal clip and to retain it there when, by a subsequent crimping operation the channel walls are folded on to the bottom of the channel.
  • each cut-out extends from the edge in question, and preferably at each end of the channel a single apron is provided extending the flexible layer of insulation on the bottom wall of the metal jointing clip.
  • the insulated jointing clip of the present invention is preferably constructed as described and claimed in the said US. Pat. No. 3,715,450 the bottom wall of the insulating channel of the clip described inthe said Patent being extended at each end to form the two aprons.
  • FIG. 1 is a perspective view of one form of insulated jointing clip according to the present invention
  • FIG. 2 similarly illustrated this jointing clip with two conductors inserted therein located in the required positions by the recesses of the two apron-like extensions, and
  • FIG. 3 is a view similarly to FIG. 2 but illustrating a modified form of the invention.
  • the illustrated insulated channel-type jointing clip comprises a channel-type jointing clip 1 which consists of metal and is provided at its inner side with projecting spike portions 2 adapted to pierce the insulation of a pair of insulated conductor wires when these are placed side by side on the bottom of the channel and the channel is then crimped to fold the two side walls of the channel towards the channel bottom.
  • crimping operation will therefore establish electrical connection between the metal conductors of the two'wires through the body of the channel-type jointing clip 1.
  • each metal jointing clip 1 is inserted in a channel3 of flexible insulating plastics material which completely covers the outer sides of the bottom and side walls of the channel, and which is doubled-back inwardly in U-formation at the free longitudinal edges of the side wallsas shown at 4, substantially throughout the length of the metal clip of the metal clip 1 so as to prevent the metal clip from being lifted out of the insulating channel and as to ensure insulating protection of the said longitudinal edges of the metal clip when the side walls of the metal clip have been folded inwardly by a crimping operation, the amount by which the doubled-back edges of the insulating channel extend towards the web of the channel being sufficiently small to permit the assembly of the jointing clip to be effected by forcing the metal clip 1 into the insulating channel 3 from.
  • the side walls of the insulating channel 3 are arranged to project at both ends over the ends of the channel-type metal jointing clip 1.
  • the insulated jointing clip as described up to this point is preferably identical in all respects to that described in the said US. Pat. No. 3,715,456.
  • the clip according to the invention differs, however, from the clip described-in that specification by the fact that the bottom wall 5 of the insulating channel is extended at both ends longitudinally of the channel beyond the ends of the side walls 6 to form at each end an apron 7 having two lateral edges 8 which extend longitudinally of the channel so as to form approximate continuations of the two edges formed by the junctions of the side and bottom walls of the insulating channel 3.
  • Each of these lateral edges 8 is provided with a U-shaped cut-out 9 at a point near the end of the metal clip 1 and of the channel side wall 6, this cut-out being so arranged that, when the apron 7 is bent-over at least partially across the profile of the channel, each of two insulated electrical conductor wires placed at the bottom of the channel-type metal clip 1 can be engaged in one of the cut-outs 9 so as to be located each near one of the junctions between the bottom and side walls of the channel.
  • FIG. 2 shows the same'jointing clip when thus assembled with the two wires 10 in position, and it will be readily appreciated that once the clip and wires have been assembled in this manner, the wires will be retained in their correct positions in the clip by the recesses 9 of the aprons 7 without the need of retaining them manually. The operator therefore has now both his hands free to insert the assembly as a whole into a hand crimping tool and then to complete the joint by operating the tool tov crimp the'connection.
  • FlG. 3 Illustrates, similarly to FIG. 2, a modified form of jointing clip according to the present invention, with two wires retained in position for crimping.
  • the jointing clip differs from that illustrated in FIGS. 1 and 2 by the fact that it is the side walls, and not the bottom wall, of the insulating channel 3 that are extended at the two ends of the metal jointing clip 1 to provide four aprons 11, one at each end of each side wall of the channel.
  • All of these aprons 11 extend beyond the adjacent end 12 of the bottom wall of the insulating channel and each of them is provided at its bottom edge, near the adjacent end of the metal clip 1, with a U-shaped cut-out 13 which, when the apron 11 is at least partially bentover across the profile of the channel, can engage a conductor wire 10 and locate it in the required position near the junction between the bottom and one of the side walls of the channel-type metal jointing clip 1.
  • Both forms of; insulated jointing clip described with reference tothe drawings may be manufactured in a manner closely resembling that described in the said US. Pat. No. 3,715,456, in which the insulation for the channel is made from a continuous channel of insulating plastic material having doubled-back edges; the metal jointing clips are inserted into the latter from the open side of the channel with sufficient longitudinal spacing to enable the apron-like extensions to be formed by cutting the channel at appropriate points of its length to provide the length of the apron or aprons, and cutting away the side walls, or the bottom wall, for the length of the apron or aprons, and forming the re Clears at the appropriate places.
  • an insulating channel foreach connector may be formed individually by moulding.
  • the invention is not limited to all the details of the illustrated embodiments and that, for example,'while it is preferred to construct the jointing clip according to the invention, apart from the provision of the apron-like extensions, substantially as described in the said US. Pat. No. 3,175,456 the invention may, if desired, be alternatively applied to insulated'channel-type jointing clips of a different construction, so long as the insulation at the outer side of the channel-type metal jointing clip is of a suitably flexible nature to permit the formation and described use of the apron-like extensions.
  • a clip for jointing insulated conductor wires which comprisestwo metal side walls substantially parallel to a first plane and a metal bottom wall disposed in a second plane normal to said first plane, said bottom wall being integrally jointed at its longitudinal edges with a longitudinal edge of each of said side walls respectively to form, jointly with said side walls, a channel'constituting a metal clip, said metal clip having insulationpiercing projections at the inner side of the channel and being covered at its outer side with a layer of flexible insulating material, wherein this insulating layer is, at each end of each channel wall that is disposed according to one of said planes, extended in the longitudinal direction of the channel to form a projecting apron extending beyond the ends of said clip, and each apron is near the end of the metal clip, and having a cut-out in each lateral edge that faces a line at which two walls of the channel are joined, so that, when the apron is bentover at least partially across the profile of the channel, one of two wires resting in the channel

Landscapes

  • Multi-Conductor Connections (AREA)
  • Connections By Means Of Piercing Elements, Nuts, Or Screws (AREA)
US00326165A 1972-01-28 1973-01-23 Jointing clips for insulated conductors Expired - Lifetime US3818121A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB415472 1972-01-28

Publications (1)

Publication Number Publication Date
US3818121A true US3818121A (en) 1974-06-18

Family

ID=9771758

Family Applications (1)

Application Number Title Priority Date Filing Date
US00326165A Expired - Lifetime US3818121A (en) 1972-01-28 1973-01-23 Jointing clips for insulated conductors

Country Status (4)

Country Link
US (1) US3818121A (en。)
JP (1) JPS4886089A (en。)
AU (1) AU5147373A (en。)
DE (1) DE2303658A1 (en。)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130045644A1 (en) * 2010-03-23 2013-02-21 Yazaki Corporation Crimping terminal, and crimping structure of crimping terminal against electric wire
US9960504B2 (en) * 2016-01-12 2018-05-01 Yazaki Corporation Shielded connector

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3511921A (en) * 1968-11-01 1970-05-12 Bell Telephone Labor Inc Indium coated slotted electrical connectors
US3621117A (en) * 1970-08-25 1971-11-16 Bell Telephone Labor Inc Wrapped insulation-piercing connector
US3715456A (en) * 1971-10-29 1973-02-06 Plessey Co Ltd Jointing clips for insulated electric wires

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3511921A (en) * 1968-11-01 1970-05-12 Bell Telephone Labor Inc Indium coated slotted electrical connectors
US3621117A (en) * 1970-08-25 1971-11-16 Bell Telephone Labor Inc Wrapped insulation-piercing connector
US3715456A (en) * 1971-10-29 1973-02-06 Plessey Co Ltd Jointing clips for insulated electric wires

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130045644A1 (en) * 2010-03-23 2013-02-21 Yazaki Corporation Crimping terminal, and crimping structure of crimping terminal against electric wire
US8900020B2 (en) * 2010-03-23 2014-12-02 Yazaki Corporation Crimping terminal, and crimping structure of crimping terminal against electric wire
US9960504B2 (en) * 2016-01-12 2018-05-01 Yazaki Corporation Shielded connector

Also Published As

Publication number Publication date
AU5147373A (en) 1974-07-25
DE2303658A1 (de) 1973-08-02
JPS4886089A (en。) 1973-11-14

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