US3869190A - Solderless wire connector - Google Patents

Solderless wire connector Download PDF

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Publication number
US3869190A
US3869190A US456135A US45613574A US3869190A US 3869190 A US3869190 A US 3869190A US 456135 A US456135 A US 456135A US 45613574 A US45613574 A US 45613574A US 3869190 A US3869190 A US 3869190A
Authority
US
United States
Prior art keywords
wire
contact
connector
legs
contact elements
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
US456135A
Other languages
English (en)
Inventor
Jr James H Bazille
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.)
3M Co
Original Assignee
Minnesota Mining and Manufacturing Co
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 Minnesota Mining and Manufacturing Co filed Critical Minnesota Mining and Manufacturing Co
Priority to US456135A priority Critical patent/US3869190A/en
Application granted granted Critical
Publication of US3869190A publication Critical patent/US3869190A/en
Priority to CH403275A priority patent/CH585973A5/xx
Priority to ZA00751957A priority patent/ZA751957B/xx
Priority to DE19752514263 priority patent/DE2514263A1/de
Priority to AU79632/75A priority patent/AU7963275A/en
Priority to FR7509845A priority patent/FR2266327B3/fr
Priority to JP50037741A priority patent/JPS50131087A/ja
Priority to IT48855/75A priority patent/IT1035126B/it
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
    • H01R4/2416—Connections using contact members penetrating or cutting insulation or cable strands the contact members having insulation-cutting edges, e.g. of tuning fork type
    • H01R4/2445—Connections using contact members penetrating or cutting insulation or cable strands the contact members having insulation-cutting edges, e.g. of tuning fork type the contact members having additional means acting on the insulation or the wire, e.g. additional insulation penetrating means, strain relief means or wire cutting knives
    • H01R4/245—Connections using contact members penetrating or cutting insulation or cable strands the contact members having insulation-cutting edges, e.g. of tuning fork type the contact members having additional means acting on the insulation or the wire, e.g. additional insulation penetrating means, strain relief means or wire cutting knives the additional means having two or more slotted flat portions
    • H01R4/2454—Connections using contact members penetrating or cutting insulation or cable strands the contact members having insulation-cutting edges, e.g. of tuning fork type the contact members having additional means acting on the insulation or the wire, e.g. additional insulation penetrating means, strain relief means or wire cutting knives the additional means having two or more slotted flat portions forming a U-shape with slotted branches

Definitions

  • ABSTRACT A wire connector contact having a pair of spaced, multi-slotted, interconnected, contact elements, the portion interconnecting the contact elements being relieved at both ends to produce greater flexibility in the outside legs of the contact elements.
  • solderless. wire connectors in the field have generally been found to use a pair of line mans pliers.
  • the force that an average person can exert with such a pliers has, therefore, been regarded as a limitation on the force requirement for making a connection with a solderless wire connector.
  • this requirement has limited solderless wire connector contacts for use on the No. 14 AWG and No. 12 AWG wires most common in home wiring to two wire slots.
  • solderless wire connector contacts for use on the No. 14 AWG and No. 12 AWG wires most common in home wiring to two wire slots.
  • in'branch circuit wiring of residential, commercial and industrial buildings it is frequently desired to connect three wires. To make such a connection two two-wire contacts have been used in a single insulating connector body.
  • a three wire connector constructed-in accordance with the present invention can be applied to No. 14 AWG or No. 12 AWG wire using a linemans pliers under normal hand pressure.
  • FIG. I is a side elevation view of a wire connector contact constructed in accordance with the present invention in an insulating connector body
  • FIG. 2 is a top plan view thereof
  • FIG. 3 is a cross-sectional view taken along line 3-3 of FIG. 2;
  • FIG. 4 is a perspective view of the connector contact
  • FIG. 5 is a bottom view of the contact
  • FIG. 6 is an end vi ew of thecontact
  • FIG. 7 is a plan view of the contact into the U-shape.
  • the connector 10 includes an insulating body 11 and a doubly folded-spring compression reserve wire connector contact 12.
  • the wire connector contact I2 comprises a pair of spaced, planar, interconnected, resilient contact elements 14 and 15 having wire receiving slots 17, 18 and 19 defined by parallel extended legs 21, 22, 23 and 24. Each slot 17, l8, 19 in one element 14, 15 is aligned with a corresponding slot 17, 18, 19, respectively, in the other element.
  • the portion 27 interconnecting the contact elements 14 and 15 is relieved at both ends in smooth arcs 29 and 30.
  • the end portions of the contact elements 14 and 15 adjacent the interconnecting portion 27 are formed with smoothly arcuate-curves 32 and 33 reverse that of the adjacent relief 29 and 30, respectively.
  • the reverse curves 32 and 33 are blended into the curvature of the corresponding relief to form a smooth continuous curve to prevent-any stress concentration point.
  • the reliefs 29 and 30 and the curving of the outside legs 21 and 24 at 32 and 33 serve to make the outside legs more uniform in width through the curved portions thereof and therefore more flexible. This substantially reduces the force required to press prior to folding the contact 12 into the insulating body 11 and onto wires therein. The force requiredis further reduced by internally perforating at 35 the internal legs 22 and 2 3 of each contact element 14 and 15 to provide stress relief along the wire contacting edges thereof.
  • the insulating body 11 has side walls 37, end walls 38 and inner walls .39 defining three parallel open-faced wire receiving channels 41, 42 and 43. Transverse grooves 45 and 46 in the side and inner walls 37 and 39 permit insertion of the doubly folded contact 12, shown partially inserted in FIGS. 1 and 2.
  • the contact'slots 17, 18 and 19 align with the axisof the appropriate wire receiving channel so as to make full spring compression reserve contact with the wire supported in the channel I when the contact is forced thereagainst.
  • a cover 48 is in collars '50 and 51 and end walls 38 have a diameter provided, to be folded and locked in place over the exposed upper surfaces of the contact elements after the contacts have-been completed.
  • Channels 41 and 42 are open only at one end, i.e.,
  • Channel 43 is open at both ends, i.e., at collars 50 and 51.
  • wire ends inserted through the sleeve 50 into the channels 41 and 42 will each be stopped within the body 11 in position for making electrical connection with the contact 12 and a wire inserted into channel 43 in a three-wire pigtail splice, a tap splice or an in-line splice.
  • the body is made of polypropylene and the circular wire accepting openings of 0.180 inch.
  • the contact 12 has an overall length of 0.630 inch.
  • the slots 17, 18, 19 are each 0.046 inch wide and the centerline to centerliine spacing between adjacent slots is 0.190 inch.
  • the relietcurves 29 and 30 are on a 0.062 inch radius, the furthest inward extent thereof aligning with the outer edge of the first slot at the respective ends.
  • the reverse curves 32 and 33 in the outside legs 21 and 24 are on a 0.125 inch radius, the center being on the center line of the nearest slot 0.206 inch along the center line from the end of the .I 3 legs;
  • the slo'tsare each 0.230 inch deep being smoothly radiused at their innermost ends.
  • the internal perforations 35 in legs 22 and 23 are generally centered in the respective legs and are 0.031 inch wide and 0.175 inch long, being smoothly radiused at the ends thereof.
  • a spring compression reserve wire-connector contact comprising a pair of spaced planar interconnected resilient contact elements having multiple wirereceiving slots defined by parallel extended legs, each slot in one element being aligned with a slot in the other element, and the portion interconnecting the contact elements being relieved at both ends, each relief extending inward from the end to alignment with the outer edge of the first wire receiving slot.
  • each contact element is formedwith four legs defining three wire receiving slots.
  • each wire receiving slot is 0.046 inch wide.

Landscapes

  • Connections By Means Of Piercing Elements, Nuts, Or Screws (AREA)
  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
US456135A 1974-03-29 1974-03-29 Solderless wire connector Expired - Lifetime US3869190A (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
US456135A US3869190A (en) 1974-03-29 1974-03-29 Solderless wire connector
AU79632/75A AU7963275A (en) 1974-03-29 1975-03-27 Solderless wire connector
DE19752514263 DE2514263A1 (de) 1974-03-29 1975-03-27 Loetungsfreier drahtverbinder
ZA00751957A ZA751957B (en) 1974-03-29 1975-03-27 Solderless wire connector
CH403275A CH585973A5 (de) 1974-03-29 1975-03-27
FR7509845A FR2266327B3 (de) 1974-03-29 1975-03-28
JP50037741A JPS50131087A (de) 1974-03-29 1975-03-28
IT48855/75A IT1035126B (it) 1974-03-29 1975-03-28 Perfezionamento nei connettori per fili elettrici del tipo senza saldatura

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US456135A US3869190A (en) 1974-03-29 1974-03-29 Solderless wire connector

Publications (1)

Publication Number Publication Date
US3869190A true US3869190A (en) 1975-03-04

Family

ID=23811572

Family Applications (1)

Application Number Title Priority Date Filing Date
US456135A Expired - Lifetime US3869190A (en) 1974-03-29 1974-03-29 Solderless wire connector

Country Status (8)

Country Link
US (1) US3869190A (de)
JP (1) JPS50131087A (de)
AU (1) AU7963275A (de)
CH (1) CH585973A5 (de)
DE (1) DE2514263A1 (de)
FR (1) FR2266327B3 (de)
IT (1) IT1035126B (de)
ZA (1) ZA751957B (de)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2658030A1 (de) * 1976-01-02 1977-07-14 Amp Inc Elektrischer verbinder und zugehoerige anschlussklemme
US4147398A (en) * 1978-03-17 1979-04-03 Amp Incorporated Selective electrical connections among wires of different diameters
GB2220530A (en) * 1988-07-06 1990-01-10 Johnson Electric Ind Mfg An armature
US4954098A (en) * 1989-11-01 1990-09-04 Minnesota Mining And Manufacturing Company Sealed insulation displacement connector
US5080606A (en) * 1990-11-05 1992-01-14 Minnesota Mining And Manufacturing Company Stacked in-line insulation displacement connector
US5113037A (en) * 1989-12-13 1992-05-12 King Technology Of Missouri, Inc. Waterproof wire connector
US5139433A (en) * 1991-04-16 1992-08-18 Bruce Bohaty Special connector members for small electrical light emitting devices, bases, and sockets
DE4431198A1 (de) * 1994-09-02 1996-03-07 Krone Ag Verfahren zum elektrischen Kontaktieren von Leiterplatten
US5606150A (en) * 1995-07-25 1997-02-25 The Whitaker Corporation Enclosure for spliced cable
US5691508A (en) * 1995-07-25 1997-11-25 The Whitaker Corporation Enclosure for spliced multiconductor cable
USRE37340E1 (en) 1989-12-13 2001-08-28 King Technology Of Missouri, Inc. Wire junction encapsulating wire connector and method of making same
US6641426B2 (en) * 2001-06-25 2003-11-04 Autonetworks Technologies, Ltd. Press-contacting terminal for a flat cable
US20050181661A1 (en) * 2003-12-22 2005-08-18 Tomonari Kaneko Shielded electrical connector
US7059889B1 (en) * 2005-10-12 2006-06-13 Lear Corporation Splice block for interconnecting electrical conductors
US20060246767A1 (en) * 2003-08-05 2006-11-02 Shigeru Suzuki Wire-terminal element

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4017140A (en) * 1975-10-28 1977-04-12 Amp Incorporated Wire-in-slot electrical connections
JPH0732033B2 (ja) * 1992-06-18 1995-04-10 株式会社ニチフ端子工業 単線型電線の接続コネクター
DE4331212C2 (de) * 1993-09-10 1997-04-30 Krone Ag Klemmanschlußeinheit

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3605072A (en) * 1969-02-28 1971-09-14 Minnesota Mining & Mfg Solderless wire connector
US3683319A (en) * 1970-10-27 1972-08-08 Amp Inc Notched plate clasp apparatus
US3793612A (en) * 1972-03-02 1974-02-19 Minnesota Mining & Mfg Connector with unitary hinge
US3793611A (en) * 1972-03-02 1974-02-19 Minnesota Mining & Mfg Connector
US3812449A (en) * 1973-04-30 1974-05-21 Minnesota Mining & Mfg Terminal strip

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3605072A (en) * 1969-02-28 1971-09-14 Minnesota Mining & Mfg Solderless wire connector
US3683319A (en) * 1970-10-27 1972-08-08 Amp Inc Notched plate clasp apparatus
US3793612A (en) * 1972-03-02 1974-02-19 Minnesota Mining & Mfg Connector with unitary hinge
US3793611A (en) * 1972-03-02 1974-02-19 Minnesota Mining & Mfg Connector
US3812449A (en) * 1973-04-30 1974-05-21 Minnesota Mining & Mfg Terminal strip

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2658030A1 (de) * 1976-01-02 1977-07-14 Amp Inc Elektrischer verbinder und zugehoerige anschlussklemme
US4147398A (en) * 1978-03-17 1979-04-03 Amp Incorporated Selective electrical connections among wires of different diameters
GB2220530A (en) * 1988-07-06 1990-01-10 Johnson Electric Ind Mfg An armature
US4975612A (en) * 1988-07-06 1990-12-04 Johnson Electric S.A. Commutator with armature winding connections
GB2220530B (en) * 1988-07-06 1992-07-22 Johnson Electric Ind Mfg An armature
US4954098A (en) * 1989-11-01 1990-09-04 Minnesota Mining And Manufacturing Company Sealed insulation displacement connector
USRE37340E1 (en) 1989-12-13 2001-08-28 King Technology Of Missouri, Inc. Wire junction encapsulating wire connector and method of making same
US5113037A (en) * 1989-12-13 1992-05-12 King Technology Of Missouri, Inc. Waterproof wire connector
US5080606A (en) * 1990-11-05 1992-01-14 Minnesota Mining And Manufacturing Company Stacked in-line insulation displacement connector
US5139433A (en) * 1991-04-16 1992-08-18 Bruce Bohaty Special connector members for small electrical light emitting devices, bases, and sockets
DE4431198A1 (de) * 1994-09-02 1996-03-07 Krone Ag Verfahren zum elektrischen Kontaktieren von Leiterplatten
US5606150A (en) * 1995-07-25 1997-02-25 The Whitaker Corporation Enclosure for spliced cable
US5691508A (en) * 1995-07-25 1997-11-25 The Whitaker Corporation Enclosure for spliced multiconductor cable
US5746610A (en) * 1995-07-25 1998-05-05 The Whitaker Corporation Ground contact for a splice enclosure
US6641426B2 (en) * 2001-06-25 2003-11-04 Autonetworks Technologies, Ltd. Press-contacting terminal for a flat cable
US20060246767A1 (en) * 2003-08-05 2006-11-02 Shigeru Suzuki Wire-terminal element
US20050181661A1 (en) * 2003-12-22 2005-08-18 Tomonari Kaneko Shielded electrical connector
US7001213B2 (en) 2003-12-22 2006-02-21 Molex Incorporated Shielded electrical connector
US7059889B1 (en) * 2005-10-12 2006-06-13 Lear Corporation Splice block for interconnecting electrical conductors

Also Published As

Publication number Publication date
CH585973A5 (de) 1977-03-15
FR2266327A1 (de) 1975-10-24
FR2266327B3 (de) 1977-12-09
JPS50131087A (de) 1975-10-16
IT1035126B (it) 1979-10-20
AU7963275A (en) 1976-09-30
DE2514263A1 (de) 1975-10-09
ZA751957B (en) 1976-02-25

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