US3605077A - Wire stop and wire guide in terminals and connectors - Google Patents

Wire stop and wire guide in terminals and connectors Download PDF

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Publication number
US3605077A
US3605077A US817396A US3605077DA US3605077A US 3605077 A US3605077 A US 3605077A US 817396 A US817396 A US 817396A US 3605077D A US3605077D A US 3605077DA US 3605077 A US3605077 A US 3605077A
Authority
US
United States
Prior art keywords
wire
funnel
barrel
wire barrel
margin
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
US817396A
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English (en)
Inventor
Karl Lester Kaylor
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
Application granted granted Critical
Publication of US3605077A publication Critical patent/US3605077A/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
    • 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
    • H01R4/10—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 effected solely by twisting, wrapping, bending, crimping, or other permanent deformation
    • H01R4/18—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 effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping
    • H01R4/20—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 effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping using a crimping sleeve
    • H01R4/203—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 effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping using a crimping sleeve having an uneven wire-receiving surface to improve the contact
    • H01R4/206—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 effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping using a crimping sleeve having an uneven wire-receiving surface to improve the contact with transversal grooves or threads

Definitions

  • the terminal has funnel means therein to guide the conductors of the wires into place in the terminal wire barrels.
  • the terminal has means therein to limit the forward insertion travel of the wire to assure that no wire insulation enters the wire barrel area.
  • the funnel means provides strain relief means in a crimped connection where the wire joins the terminal.
  • This invention relates to electrical terminals of the type used to connect lead wires to electrical terminals of the type used to connect lead wires to electrical components. More particularly, the invention relates to wire guides and wire stops in electrical terminals for properly locating the lead wires relative to the terminal wire barrels.
  • a tenninal according to this invention has means to support the wire where it joins the terminal so as to prevent undue bending stresses on the wire which normally concentrate at that point. This support means is disclosed in US. Pat. No. 2,405,1 l l, and comprises a metal sleeve fitted over the terminal barrel.
  • Another object is the provision of wire stop means to prevent a wire from being overinserted into a wire barrel of a terminal.
  • a further object is to provide wire guide means to gather wire strands and guide them into a terminal wire barrel.
  • Still another object is to provide strain relief means to relieve undue bending stresses on a thinly insulated wire where the wire joins a terminal.
  • FIG. 1 is a perspective view showing tapered ferrules in strip form
  • FIG. 2 is a cross-sectional and exploded view of a terminal
  • FIG. 3 is a cross-sectional view showing a terminal assembled with a wire in place
  • FIG. 4 is a cross-sectional view of FIG. 3 after it has been crimped.
  • FIG. 5 is a fragmentary cross-sectional view of an alternate embodiment ofFIG. 3.
  • an electrical terminal T comprises a terminal connector section 2 of the apertured-tongue type including a wire barrel section 4 coextensive therewith.
  • Connector section 2 may, of course, take any desirable form.
  • a thin metal insulation support sleeve 6 surrounds and frictionally engages barrel section 4 and extends from the wire entry end of barrel section 4.
  • An insulation sleeve 8 of suitable dielectric material is preferably bonded or secured to support sleeve 6 constituting a preinsulated electrical terminal.
  • the inside surface of barrel section 4 is preferably serrated and the entrance thereto is beveled.
  • the section of sleeve 6 not engaging barrel section 4 is larger in diameter than the section of sleeve 6 engaging barrel section 4 and a margin of the larger diameter section is folded inwardly into engagement with the inside surface of sleeve 6.
  • a serrated edge 7 is provided along the double thickness area.
  • wire stop and wire guide means may be defined by a conically shaped ferrule or funnel F which is generally made of metal similar to sleeve 6.
  • the large end of funnel F has a flange defined by an out-turned lip 10 which effectively snaps into place behind the serrated edge 7 in sleeve 6.
  • the small end 12 of funnel F has its opening slightly enlarged by thinning the wall thickness, as at 14. Small end 12 is disposed to abut the tapered entrance to barrel section 4 such that a short length of the end 12 enters the barrel section when a funnel is snapped into place in a terminal. This allows a conductor to pass through the small opening and the opening of the wire barrel section without catching or snagging at the opening thereof.
  • End 12 of funnel F in entering wire barrel section 4 when the funnel is assembled into a terminal T provides an arrangement that holds the funnel opening in axial alignment relative to the opening of barrel section 4, and this serves to effectively guide a conductor into wire barrel section 4.
  • a series of funnels 10 are formed from a flat strip 16 of metal by conventional metaldrawing techniques. Funnels 10 remain attached to strips 16 by small connecting straps 18. During automatic assembly of terminals, strips 16 serve to carry funnels 10 to the terminals whereat they are severed from strips 16 and inserted into terminais T.
  • a wire W is stripped of a length of its thin insulation cover CO, and the exposed bare conductor CD is inserted into a terminal T. During entry, the ends of the conductor are gathered and pointed by funnel F. When the conductor CD is fully inserted into barrel section 4, the severed edge E of the insulation cover CO engages the walls of funnel F. This arrangement limits the forward insertion travel of the wire W into the terminal R and properly positions the conductor CD in barrel section 4 so that when it is crimped an effective crimp is attained.
  • barrel section 4 Upon crimping, barrel section 4 is swaged onto conductor CD for a mechanical and electrical connection, as shown in FIG. 4. Simultaneously, a crimp onto the enlarged end of insulation sleeve 8 will swage funnel F, support sleeve 6 and insulation sleeve 8 onto the insulation cover C0 of wire W.
  • This arrangement provides strain relief means for thinly insulated wires. Wires with slightly larger insulation covers CO may be used in the present invention, in which cases, the severed edge E of wires W bottom in a larger diameter section of funnel F.
  • a funnel Fa may be formed from an extension of support sleeve 6. Funnel Fa serves the same purpose as described above.
  • the funnel is integral with an inwardly folded margin of the metallic sleeve 6 and tapers to a single thickness end partially received in the end of the opening of the wire barrel 4.
  • the end of the funnel has an opening which is in axial alignment with the wire barrel opening.
  • funnel F may be made of plastic or other substantially pliable dielectric material if desired, in which cases, after crimping the funnel will become compressed around the wire insulation CO and provide a connection which is sealed against the ingress of moisture and water.
  • Connectors for joining two wires may utilize the concept taught in the present invention in which case terminal connector section 2 is eliminated, and wire-receiving means and funnel means are incorporated into each end of the connector.
  • an electrical terminal comprising: an electrically conductive wire barrel having an opening adapted to receive therethrough a wire conductor of an electrical wire, a metallic sleeve containing said barrel, an insulation sleeve surrounding said metallic sleeve, said metallic sleeve extending beyond an end of said barrel and having an inwardly folded margin portion in spaced relationship from said wire barrel and, said margin portion generally of annular configuration and in engagement with the inside of said metallic sleeve, and a freely insertable funnel of resilient material inserted within and past said annular margin and into the inside of said metallic sleeve, said funnel being retained within said sleeve and in engagement against an edge of said inwardly folded margin and the end of said wire barrel.
  • said funnel is of resilient material and a large end of said funnel has an outer lip which is initially resiliently compressible upon said insertion past said inwardly folded margin portion and subsequently resiliently expandable and in engagement against the edge of said margin portion, said funnel being located between and in engagement against said margin portion edge and said wire barrel end.
  • said funnel is of resilient material and includes a large end with an outer lip which is initially resiliently compressible upon insertion of the funnel past said inwardly folded margin, said lip additionally being resiliently expandable and in engagement against the edge of said inwardly folded margin, with said funnel located between and in engagement against said margin edge and said wire barrel end.

Landscapes

  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
  • Closures For Containers (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
US817396A 1969-04-18 1969-04-18 Wire stop and wire guide in terminals and connectors Expired - Lifetime US3605077A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US81739669A 1969-04-18 1969-04-18

Publications (1)

Publication Number Publication Date
US3605077A true US3605077A (en) 1971-09-14

Family

ID=25223000

Family Applications (1)

Application Number Title Priority Date Filing Date
US817396A Expired - Lifetime US3605077A (en) 1969-04-18 1969-04-18 Wire stop and wire guide in terminals and connectors

Country Status (13)

Country Link
US (1) US3605077A (de)
AT (1) AT304666B (de)
BE (1) BE749020A (de)
CH (1) CH514945A (de)
DE (1) DE2016726C3 (de)
DK (1) DK137589C (de)
ES (1) ES378476A1 (de)
FR (1) FR2043340A5 (de)
GB (1) GB1240976A (de)
IL (1) IL34159A (de)
NL (2) NL7005216A (de)
NO (1) NO129548B (de)
SE (1) SE377408B (de)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4720911A (en) * 1986-04-16 1988-01-26 Iosif Tubman Contact press tool and electric connector
US5167066A (en) * 1991-08-08 1992-12-01 Mize & Co., Inc. Method for producing an insulated electrical connector
EP0520291A1 (de) * 1991-06-24 1992-12-30 Yazaki Corporation Elektrisches Anschlussteil
US5230640A (en) * 1991-03-12 1993-07-27 Cables Pirelli Connecting device for one or two electric cables, and process for mounting this device on the end of the cable or cables
US5522739A (en) * 1994-04-15 1996-06-04 Panduit Corp. Insulated terminal with integral dual flared barrel
US6068506A (en) * 1998-04-21 2000-05-30 Cablemaster Technologies, Co., Ltd. Strain relief device for an electrical cable
EP1612890A1 (de) * 2004-07-02 2006-01-04 Nexans Verbindungsteil für ein elektrisches Kabel, insbesondere für Mittelspannung
FR2884974A1 (fr) * 2005-04-25 2006-10-27 Airbus France Sas Raccord de cables a ame conductrice sur cosses electriques
EP2978071A1 (de) * 2014-07-25 2016-01-27 Ming-Kun Li Anschlussklemmenhülsenstruktur
US20180295759A1 (en) * 2015-06-12 2018-10-11 Fuji Machine Mfg Co., Ltd. Board work machine and recognition method

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9118841D0 (en) * 1991-09-03 1991-10-16 Raychem Sa Nv Electrical connector

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2078051A (en) * 1935-04-11 1937-04-20 Electroline Corp Connecter for stranded cable
US2405111A (en) * 1942-09-25 1946-08-06 Aircraft Marine Prod Inc Electrical connection
US2618684A (en) * 1947-11-24 1952-11-18 Thomas & Betts Corp Insulated wire joint
US2904619A (en) * 1954-07-23 1959-09-15 Amp Inc Shielded wire connectors
US3281524A (en) * 1964-04-03 1966-10-25 Thomas & Betts Corp Insulated service splicer assembly
US3312929A (en) * 1964-08-24 1967-04-04 Amp Inc Sealing of crimped electrical connectors
US3356987A (en) * 1966-08-10 1967-12-05 Amp Inc Insulation support and wire guide for an electrical connector

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2078051A (en) * 1935-04-11 1937-04-20 Electroline Corp Connecter for stranded cable
US2405111A (en) * 1942-09-25 1946-08-06 Aircraft Marine Prod Inc Electrical connection
US2618684A (en) * 1947-11-24 1952-11-18 Thomas & Betts Corp Insulated wire joint
US2904619A (en) * 1954-07-23 1959-09-15 Amp Inc Shielded wire connectors
US3281524A (en) * 1964-04-03 1966-10-25 Thomas & Betts Corp Insulated service splicer assembly
US3312929A (en) * 1964-08-24 1967-04-04 Amp Inc Sealing of crimped electrical connectors
US3356987A (en) * 1966-08-10 1967-12-05 Amp Inc Insulation support and wire guide for an electrical connector

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4720911A (en) * 1986-04-16 1988-01-26 Iosif Tubman Contact press tool and electric connector
US5230640A (en) * 1991-03-12 1993-07-27 Cables Pirelli Connecting device for one or two electric cables, and process for mounting this device on the end of the cable or cables
EP0520291A1 (de) * 1991-06-24 1992-12-30 Yazaki Corporation Elektrisches Anschlussteil
US5167066A (en) * 1991-08-08 1992-12-01 Mize & Co., Inc. Method for producing an insulated electrical connector
WO1993003519A1 (en) * 1991-08-08 1993-02-18 Mize & Co., Inc. An apparatus and method for producing an insulated electrical connector
US5522739A (en) * 1994-04-15 1996-06-04 Panduit Corp. Insulated terminal with integral dual flared barrel
US6068506A (en) * 1998-04-21 2000-05-30 Cablemaster Technologies, Co., Ltd. Strain relief device for an electrical cable
EP1612890A1 (de) * 2004-07-02 2006-01-04 Nexans Verbindungsteil für ein elektrisches Kabel, insbesondere für Mittelspannung
FR2872637A1 (fr) * 2004-07-02 2006-01-06 Nexans Sa Piece de connexion pour un cable electrique, en particulier a moyenne tension
FR2884974A1 (fr) * 2005-04-25 2006-10-27 Airbus France Sas Raccord de cables a ame conductrice sur cosses electriques
EP2978071A1 (de) * 2014-07-25 2016-01-27 Ming-Kun Li Anschlussklemmenhülsenstruktur
US20180295759A1 (en) * 2015-06-12 2018-10-11 Fuji Machine Mfg Co., Ltd. Board work machine and recognition method
US10506750B2 (en) * 2015-06-12 2019-12-10 Fuji Corporation Board work machine and recognition method

Also Published As

Publication number Publication date
IL34159A0 (en) 1970-05-21
NL7005216A (de) 1970-10-20
NL141718C (de)
DE2016726B2 (de) 1978-11-16
FR2043340A5 (de) 1971-02-12
GB1240976A (en) 1971-07-28
DK137589B (da) 1978-03-28
NO129548B (de) 1974-04-22
IL34159A (en) 1973-04-30
CH514945A (de) 1971-10-31
SE377408B (de) 1975-06-30
DK137589C (da) 1978-09-11
AT304666B (de) 1973-01-25
ES378476A1 (es) 1972-06-16
DE2016726C3 (de) 1979-07-26
BE749020A (fr) 1970-09-16
DE2016726A1 (de) 1970-10-29

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