EP0046022A2 - Dispositif de fixation de fil pour un appareil pour l'installation de fils dans un assemblage de connecteurs et méthode pour fabriquer ce dispositif de fixation - Google Patents

Dispositif de fixation de fil pour un appareil pour l'installation de fils dans un assemblage de connecteurs et méthode pour fabriquer ce dispositif de fixation Download PDF

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Publication number
EP0046022A2
EP0046022A2 EP81303370A EP81303370A EP0046022A2 EP 0046022 A2 EP0046022 A2 EP 0046022A2 EP 81303370 A EP81303370 A EP 81303370A EP 81303370 A EP81303370 A EP 81303370A EP 0046022 A2 EP0046022 A2 EP 0046022A2
Authority
EP
European Patent Office
Prior art keywords
jig
apertures
passageways
blank
wires
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.)
Withdrawn
Application number
EP81303370A
Other languages
German (de)
English (en)
Other versions
EP0046022A3 (fr
Inventor
Thomas Ralph Sprunger
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.)
TE Connectivity Corp
Original Assignee
AMP Inc
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 AMP Inc filed Critical AMP Inc
Publication of EP0046022A2 publication Critical patent/EP0046022A2/fr
Publication of EP0046022A3 publication Critical patent/EP0046022A3/fr
Withdrawn legal-status Critical Current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
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/01—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for connecting unstripped conductors to contact members having insulation cutting edges

Definitions

  • This invention relates to a wire holding jig for apparatus which installs electrical wires into a connector assembly, and a method of manufacturing the jig.
  • U. S. A. 3,972,101 apparatus characterised by a base, on which is positioned an electrical connector assembly of a type disclosed in U.S.A. 4,127,312, a pair of wire jigs along opposite sides of the connector assembly, each jig having fingers separating electrical wires from one another, as the wires extend from one jig to the other across the connector assembly and in alignment with respective electrical terminals of the connector assembly, an insertion tool received on the base and being adapted to push the wires past a cutting edge on one of the jigs, and to push the wires, after trimming by the cutting edge, into the connector assembly and in electrical connection within wire receiving and connecting slots of the terminals.
  • each wire jig is a machined metal block having a row of projecting fins, spaced apart from one another and defining therebetween wire separating passageways.
  • Machine manufacture is costly, and the metal block adds to the weight of the known apparatus.
  • the one wire jig having the cutting edge requires replacement when the cutting edge becomes dulled during use or when the jig is damaged.
  • the present invention concerns the problem of reducing the weight and cost of manufacturing a jig replacement for a worn or damaged wire jig of the type disclosed in. U.S.A. 3,972,101.
  • a wire jig for use in the known apparatus is characterised in that; a metal blank is provided with a series of spaced apart apertures, the peripheries of the apertures extend into the thickness of the blank and are concave, the blank includes a bend, each of the apertures intercepts the bend and defines a wire receiving passageway through the bend, and cutting edges are whet along the concave peripheries of the apertures.
  • a method of manufacturing a wire jig according to the invention is characterised by the steps of; masking a metal blank with an etchant resistant substance leaving exposed first areas on a first side of said blank in registration with exposed second areas on a second side of said blank, etching through said exposed areas of said blank to construct a series of apertures through.said blank, the apertures having peripheral walls concave into the thickness of said blank, bending at least a partial fold in said blank such that said fold intercepts each said apertures, and whetting cutting edges along the respective peripheries of said apertures.
  • the wire jig being a bent metal blank, is lighter in weight than a machined block.
  • the wire receiving passageways, defined by apertures in the blank, are fabricated by etching and without machining. The concave peripheries of the apertures are readily whetted to a keen edge.
  • the blank is cleaned of etchant residue, and the resist substance 2 is removed by a suitable solvent cleaner.
  • the blank is then formed to a configuration as shown in Figure 7, by bending a partial fold 10 which forms a ridge 12, into the top of which the apertures 6 are recessed. Sloping oppositely away from the ridge 12 are the end portions or legs 14 and 16 of the blank 1.
  • the leg 14 is surface ground by a fine grit grinding wheel 18 to whet sharp cutting edges, by a single pass of the wheel, on the portions of the aperture peripheries 8A which project below the top of the ridge 12.
  • the finished jig is shown in Figure 1.
  • Figure SB illustrates an optional manufacturing operation performed by a tapered grinding wheel 20 which enters into each recess 6 to grind each recess with an outwardly flared configuration opening into the top of the ridge 12.
  • Figure 6A illustrates a known wire jig 22, machined from a single metal block.
  • a base 23 of the jig is integral with a plurality of fingers 24 which are spaced apart by deep, wire aligning recesses 26 intersecting a lip 28, which overhangs an undenout channel 30.
  • the outfacing surface 32 of the lip 28 is ground to provide a precise cutter surface over which a cutting blade is drawn to trim wires to desired lengths.
  • the connector assembly 38 includes a dielectric housing 40 having a raised lip 42, Rows of slotted plate electrical terminals 44 are contained in the housing. Electrical wires, some of which are shown at 46, are to be trimmed, and then inserted into electrical connection with the terminals. Additional connector portions 48 and 50 nest together and cover the wire connections. Further details of the connector assembly 38 are disclosed in the aforesaid U.S.A. 4,127,312.
  • the connector assembly 38 is located on a base 52 of the apparatus with the lip 42 inset within the channel 30 of the jig 22.
  • the surface 32 of the jig 22 is inside the connector assembly 38, facing the rows of terminals 44.
  • the connector assembly is positioned for connection of a plurality of wires to the terminals 44.
  • One wire is shown at 54, between the fingers 24 of the jig 22.
  • Figures 7 and 8 further illustrate a portion of an inserter 56, which is part of an insertion tool disclosed in the aforesaid U.S.A. 3,972,101.
  • the inserter is actuated to push the wires 54, in a manner as described in U.S.A. 3,972,101, past the jig surface 32, thereby trimming the wires 54.
  • the inserter pushes the trimmed ends of the wires into the connector, and into connection with respective slotted plate terminals 44.
  • Figures 9 and 10 illustrate the jig 1 on the support bar 36 in place of the jig 22.
  • the leg 16 is secured by a threaded fastener 58 to the support bar 36.
  • a V-shaped plate 60 is also secured by the fastener 58.
  • One leg 62 of the plate is secured by the fastener 58 to the bar 36, while the other leg projects above the bar 36 and the jig 1, and is divided into a plurality of comb fingers 64, having a wire separating function similar to the fingers 24 of the jig 22.
  • the fingers 64 seve to initially separate the wires 54 from one another, and to align the wires over the jig 1.
  • the wires 54 then are draped over the ridge 12 of the jig 1, and in alignment with apertures 6.
  • the apertures 6 provide final separation of the wires from one another, and final alignment of the wires with respective terminals 44 of the connector 38, when the wires are trimmed, in a manner described, as follows. :
  • the connector 38 when mounted on the base 52 will have the lip 42 thereof in a clearance between the leg 14 and the base 38.
  • the leg 14 will overlie the lip and enter the connector 38.
  • the inserter 56 when actuated as described in the aforesaid U.S.A. 3,972,101, will push the wires 54 toward the connector 38, forcing the wires into the apertures 6, then past the whetted cutting edges of the apertures 6.
  • the inserter will wipe past the leg 14, trimming the wires to desired lengths.
  • the hollow cutting edges provided by the concave peripheries produce clean severing of the wires.
  • the scraps cut from the wires will remain in and along the apertures 6 and the comb fingers 64.
  • the inserter pushes the trimmed wires into the connector 38 and into connection with respective slotted plate terminals 44, establishing electrical connections of the wires and terminals.
  • the specific details of the connections are disclosed in the aforesaid U.S.A. 4,127,312.

Landscapes

  • Manufacturing Of Electrical Connectors (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
EP81303370A 1980-08-04 1981-07-23 Dispositif de fixation de fil pour un appareil pour l'installation de fils dans un assemblage de connecteurs et méthode pour fabriquer ce dispositif de fixation Withdrawn EP0046022A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US17478480A 1980-08-04 1980-08-04
US174784 1988-03-29

Publications (2)

Publication Number Publication Date
EP0046022A2 true EP0046022A2 (fr) 1982-02-17
EP0046022A3 EP0046022A3 (fr) 1982-10-06

Family

ID=22637513

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81303370A Withdrawn EP0046022A3 (fr) 1980-08-04 1981-07-23 Dispositif de fixation de fil pour un appareil pour l'installation de fils dans un assemblage de connecteurs et méthode pour fabriquer ce dispositif de fixation

Country Status (2)

Country Link
EP (1) EP0046022A3 (fr)
JP (1) JPS5763786A (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5177856A (en) * 1990-02-01 1993-01-12 Cryptec, Inc. Method of making a shield for a printed circuit board
US7299532B2 (en) * 2002-03-22 2007-11-27 Massimo Criacci Method for the creation of clearance holes
WO2012134879A1 (fr) * 2011-03-31 2012-10-04 Corning Cable Systems Llc Dispositif de dénudage sans lame

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3866296A (en) * 1974-02-15 1975-02-18 Amp Inc Apparatus for connecting conductors to terminals in connectors intermediate the ends of the conductors
US3972101A (en) * 1975-11-10 1976-08-03 Amp Incorporated Tool for trimming wires and inserting the trimmed wires into a connector
EP0003438A1 (fr) * 1978-02-01 1979-08-08 AMP INCORPORATED (a New Jersey corporation) Outil pour garnir un connecteur électrique de fils

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3866296A (en) * 1974-02-15 1975-02-18 Amp Inc Apparatus for connecting conductors to terminals in connectors intermediate the ends of the conductors
US3972101A (en) * 1975-11-10 1976-08-03 Amp Incorporated Tool for trimming wires and inserting the trimmed wires into a connector
EP0003438A1 (fr) * 1978-02-01 1979-08-08 AMP INCORPORATED (a New Jersey corporation) Outil pour garnir un connecteur électrique de fils

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5177856A (en) * 1990-02-01 1993-01-12 Cryptec, Inc. Method of making a shield for a printed circuit board
US7299532B2 (en) * 2002-03-22 2007-11-27 Massimo Criacci Method for the creation of clearance holes
WO2012134879A1 (fr) * 2011-03-31 2012-10-04 Corning Cable Systems Llc Dispositif de dénudage sans lame
US8677861B2 (en) 2011-03-31 2014-03-25 Corning Cable Systems Llc Bladeless stripping device

Also Published As

Publication number Publication date
EP0046022A3 (fr) 1982-10-06
JPS5763786A (en) 1982-04-17

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Withdrawal date: 19820914

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Inventor name: SPRUNGER, THOMAS RALPH