US3852702A - Electrical terminal having pyramid teeth thereon - Google Patents

Electrical terminal having pyramid teeth thereon Download PDF

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Publication number
US3852702A
US3852702A US00383368A US38336873A US3852702A US 3852702 A US3852702 A US 3852702A US 00383368 A US00383368 A US 00383368A US 38336873 A US38336873 A US 38336873A US 3852702 A US3852702 A US 3852702A
Authority
US
United States
Prior art keywords
leg
shank
teeth
tab
wire
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
US00383368A
Other languages
English (en)
Inventor
E Dowling
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
Priority to US00383368A priority Critical patent/US3852702A/en
Priority to GB2753774A priority patent/GB1435457A/en
Priority to IT24335/74A priority patent/IT1015335B/it
Priority to AU70703/74A priority patent/AU7070374A/en
Priority to ES1974204774U priority patent/ES204774Y/es
Priority to NL7409777A priority patent/NL7409777A/xx
Priority to BE146805A priority patent/BE817933A/fr
Priority to FR7425500A priority patent/FR2239023B3/fr
Priority to DE2435412A priority patent/DE2435412A1/de
Priority to AR254864A priority patent/AR199751A1/es
Priority to CH1020374A priority patent/CH570716A5/xx
Priority to JP49085556A priority patent/JPS5043490A/ja
Priority to BR6145/74A priority patent/BR7406145D0/pt
Priority to SE7409715A priority patent/SE7409715L/
Application granted granted Critical
Publication of US3852702A publication Critical patent/US3852702A/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
    • H01R4/26—Connections in which at least one of the connecting parts has projections which bite into or engage the other connecting part in order to improve the contact
    • 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
    • H01R4/188—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 having an uneven wire-receiving surface to improve the contact
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T24/00—Buckles, buttons, clasps, etc.
    • Y10T24/15—Bag fasteners

Definitions

  • ABSTRACT This invention relates to a stamped and formed generally U-shaped electrical terminal useful for terminat- V ing magnet or electromagnetic coil wire. More particularly this invention provides a U-shaped terminal stamped and formed from a conductive material wherein a leg has a slot or an opening and a shank which contains a locking tab extending normal thereto such that the locking tab may protrude through the slot or opening and be bent against the leg so as to bias that leg against the shank.
  • the inside surface of the shank leg may contain a plurality of elongated pyramidal shaped teeth or groups of such teeth.
  • Each set contained teeth of different height, the smallest tooth being nearest the outer edge of the leg surface and the tooth having the highest elevation being nearest the inside of the leg.
  • the plurality of teeth of varying heights were to bite into and through the insulating varnish to varying degrees thereby establishing good electrical connection and further a mechanical grip.
  • the present invention provides a generally U-shaped electrical terminal stamped and formed from a sheet of conductive material and comprising a leg having a generally concave portion thereon and an opening therethrough and a shank which is parallel to the leg and contains a locking tab which extends normal to the axis of the leg.
  • the tab is adapted to extend through the opening of the leg so that it may be bent parallel to the leg to press it up against the shank.
  • the shank contains on its surface facing the leg a plurality of teeth where each tooth is of a different height. These teeth bite into an insulated electrical wire placed across the teeth when the leg is biased against the shank.
  • the terminal has a bight which hinges the shank and the leg together.
  • Terminal 10 consists of a leg 12, a shank l4 and a bight 16 which is the hinge for terminal 10.
  • FIG. 1 shows the leg, shank and bight are quite wide relative to the thickness. The width of course is a matter of preference.
  • leg 12 is preferably concave, generally designated by the reference numeral 18, beginning with the junction of the leg with bight 16 and terminating at free end 20.
  • leg 12 contains a slot 22. This slot extends from about half way along leg 12 through bight l6 and into shank l4.
  • Shank 14 the other half of the U-shaped terminal, parallels leg 12 and is connected thereto by bight 16.
  • the material removed to form slot 22 remains attached to shank 14 at the end of the slot to form a locking tab 24. This tab is bent to project from the shank outwardly through the slot in leg 12 as the drawing indicates.
  • shank 14 has on its inner surface 30; Le, the surface facing leg 12, a plurality of teeth 26 which extend along and on either side of the longitudinal axis of the shank.
  • Each sets, herein designated by reference numeral 28, contains a number of teeth of varying height, the highest tooth beingon the inside of the set and the lowest tooth being adjacent the side of the shank. As FIGS. 1, 5 and 6 show, each tooth is triangular or pyramidal in shape, the apex thereof being rather sharp.
  • FIGS. 3 and 4 show the completed termination of magnet wire 32.
  • FIG. 4 also shows a ring tongue 36 integral with and extending from shank 14. Ring tongue 36 represents only one of a number of standard tongue styles which may be formed with electrical terminal 10.
  • FIG. 6 illustrates the situation where a wire of larger diameter, herein designated as 32, is terminated in electrical terminal 10. As is clearly seen in the drawing the teeth penetrate into but do not sever the wire as happened with wire 32. Not withstanding this the termination provides an extremely good electrical contact. Further, it is to be noted that the teeth out through insulation 38 so that stripping of the wire is not required. In addition to illustrating how teeth 26 cut through the insulation on wire 32 prime, FIG. 6 also shows the ability of electrical terminal 10 to accomodate a wide range of wire sizes and insulation thicknesses.
  • the present invention contains a novel feature in the locking tab which biases the leg against the shank and further which locks the two together.
  • Another novel feature is the pyramidal or triangular shaped teeth which increase in height from the outside in.
  • Yet another feature is that as the leg is forced down onto the wire, the flattening of the concave section 18 imparts a rolling action to the wire which enhances the penetrating ability of teeth 26.
  • Another feature is that the wire being crimped is automatically and properly positioned in the terminal when it is bearing up against inside portion 34 (FIG. 2).
  • Still another novel feature of the present invention is that the wire being terminated is subjected to two compressive force vectors; one is parallel to the apex of the teeth and the second is at about a right angle thereto as the wire is pushed down the sides of the triangular shaped teeth.
  • FIGS. 5 and 6 show, a mass of wire equal to the distance between the apex of adjacent teeth is squeezed into the decreasingly smaller area etween the apex of the teeth and the surface of the shank.
  • a terminal may be constructed in which the shank contains one set of teeth progressing in size from one side to the other.
  • a terminal of this type lends itself readily to a sutomatic wire cutting in bobbin construction.
  • An electrical terminal for electrical wire which comprises:
  • an elongated shank having a plurality of parallel, elongated teeth extending axially along one surface with each tooth being progressively different in height relative to the next tooth, and the shank further having an elongated tab extending generally upwardly from the one surface;
  • an elongated leg positioned movably over the shank and hinged thereto, said leg having an opening therein with said tab extending therethrough so that as the tab is bent against the leg and toward the shank, the leg approaches the one surface of the shank and pushes an electrical wire which may be lying across the shank into electrical and mechanical engagement with the teeth.
  • An electrical terminal for electrical wire which comprises:
  • a tab formed from the material provided from stamping out the slot, said tab being integrally connected to the shank and extending through the slot in the leg, said tab being adapted to be bent so that the leg is pressed toward the shank thereby squeezing an electrical wire which may be present inbetween and further with the bent tab locking the leg and shank together.
  • the electrical terminal of claim 4 further including a set of elongated teeth positioned on the surface of the shank facing the leg, said set consisting of a plurality of teeth each of which is of a progressively different height relative to its neighbor.

Landscapes

  • Multi-Conductor Connections (AREA)
  • Coils Or Transformers For Communication (AREA)
  • Connections By Means Of Piercing Elements, Nuts, Or Screws (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
  • Manufacturing Of Electrical Connectors (AREA)
US00383368A 1973-07-27 1973-07-27 Electrical terminal having pyramid teeth thereon Expired - Lifetime US3852702A (en)

Priority Applications (14)

Application Number Priority Date Filing Date Title
US00383368A US3852702A (en) 1973-07-27 1973-07-27 Electrical terminal having pyramid teeth thereon
GB2753774A GB1435457A (en) 1973-07-27 1974-06-21 Electrical terminals
IT24335/74A IT1015335B (it) 1973-07-27 1974-06-24 Perfezionamenti relativi a termi nali elettrici
AU70703/74A AU7070374A (en) 1973-07-27 1974-07-01 Electrical terminals
NL7409777A NL7409777A (nl) 1973-07-27 1974-07-19 Elektrisch verbindingsorgaan.
ES1974204774U ES204774Y (es) 1973-07-27 1974-07-19 Un terminal electrico.
BE146805A BE817933A (fr) 1973-07-27 1974-07-22 Borne de connexion electrique
FR7425500A FR2239023B3 (fr) 1973-07-27 1974-07-23
DE2435412A DE2435412A1 (de) 1973-07-27 1974-07-23 Einstueckige elektrische anschlussklemme
AR254864A AR199751A1 (es) 1973-07-27 1974-07-24 Terminal electrico
CH1020374A CH570716A5 (fr) 1973-07-27 1974-07-24
JP49085556A JPS5043490A (fr) 1973-07-27 1974-07-25
BR6145/74A BR7406145D0 (pt) 1973-07-27 1974-07-25 Um terminal eletrico interico
SE7409715A SE7409715L (fr) 1973-07-27 1974-07-26

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00383368A US3852702A (en) 1973-07-27 1973-07-27 Electrical terminal having pyramid teeth thereon

Publications (1)

Publication Number Publication Date
US3852702A true US3852702A (en) 1974-12-03

Family

ID=23512791

Family Applications (1)

Application Number Title Priority Date Filing Date
US00383368A Expired - Lifetime US3852702A (en) 1973-07-27 1973-07-27 Electrical terminal having pyramid teeth thereon

Country Status (14)

Country Link
US (1) US3852702A (fr)
JP (1) JPS5043490A (fr)
AR (1) AR199751A1 (fr)
AU (1) AU7070374A (fr)
BE (1) BE817933A (fr)
BR (1) BR7406145D0 (fr)
CH (1) CH570716A5 (fr)
DE (1) DE2435412A1 (fr)
ES (1) ES204774Y (fr)
FR (1) FR2239023B3 (fr)
GB (1) GB1435457A (fr)
IT (1) IT1015335B (fr)
NL (1) NL7409777A (fr)
SE (1) SE7409715L (fr)

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3963857A (en) * 1974-09-12 1976-06-15 Amp Incorporated Small magnet wire to lead wire termination
US4003623A (en) * 1974-09-12 1977-01-18 Amp Incorporated Wire securing member with varying serrations
US4212511A (en) * 1978-11-13 1980-07-15 Amp Incorporated Electrical connections for conductors in thin substrates
US4460091A (en) * 1982-09-01 1984-07-17 Champion International Corporation Bag resealing clip
US4646394A (en) * 1986-01-08 1987-03-03 American Cord & Webbing Co., Inc. Cord lock
WO1987002194A1 (fr) * 1985-09-30 1987-04-09 Amp Incorporated Connecteur et borne electriques
US5182838A (en) * 1991-08-13 1993-02-02 Stenner John R Filament, cordage locking device
DE102004036829A1 (de) * 2004-07-29 2006-03-23 Sennheiser Electronic Gmbh & Co. Kg Feinstdrahtkontaktierung
CN103579791A (zh) * 2012-07-31 2014-02-12 泰科电子日本合同会社 电端子
US8979601B2 (en) 2010-08-23 2015-03-17 Tyco Electronics Amp Gmbh Electric connecting terminal as well as method and device for producing an electric connecting terminal
DE102014115393B3 (de) * 2014-10-22 2016-04-07 Actuator Solutions GmbH Verbindungsanordnung mit einem Crimpverbinder und einem in diesem fixierten Draht
DE102017127288A1 (de) * 2017-11-20 2019-05-23 Phoenix Contact Gmbh & Co. Kg Schirmanschluss
GB2576362A (en) * 2018-08-16 2020-02-19 Cambridge Mechatronics Ltd Improved crimping
US10637162B2 (en) * 2018-07-06 2020-04-28 Yazaki Corporation Connection structure of the electric-wire and the terminal
US11565852B2 (en) * 2019-10-09 2023-01-31 William Buck Garbage can retaining clip apparatus
US11739737B2 (en) * 2018-02-07 2023-08-29 Autosplice, Inc. Shape memory alloy filament crimping element
US20230291137A1 (en) * 2022-03-09 2023-09-14 Te Connectivity Solutions Gmbh Terminal for flat flexible cable having structured dimples

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2603151C3 (de) * 1976-01-28 1978-10-26 Siemens Ag, 1000 Berlin Und 8000 Muenchen Bauelement für Schalt- und/oder Trennleisten in Verteilern für Fernmeldeanlagen
IE821381L (en) * 1981-05-01 1983-12-10 Alwar Company Ltd Electric fitting
JPH0754720B2 (ja) * 1987-04-10 1995-06-07 フレキシブルプリント回路板用電気接続端子
GB9524225D0 (en) * 1995-11-27 1996-01-31 Bicc Plc Electric connectors

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3496520A (en) * 1967-05-11 1970-02-17 Amp Inc Fuel cell tab
US3561808A (en) * 1968-04-22 1971-02-09 Stoffel Seals Corp Sealing device
US3594704A (en) * 1969-10-02 1971-07-20 Raychem Corp In-line connector for electrical conductors or the like
US3708149A (en) * 1971-02-17 1973-01-02 Amp Domestic Inc Closure device for closing flexible tubes
US3728473A (en) * 1971-10-06 1973-04-17 Thomas & Betts Corp Multi-orificed electrical connector

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3496520A (en) * 1967-05-11 1970-02-17 Amp Inc Fuel cell tab
US3561808A (en) * 1968-04-22 1971-02-09 Stoffel Seals Corp Sealing device
US3594704A (en) * 1969-10-02 1971-07-20 Raychem Corp In-line connector for electrical conductors or the like
US3708149A (en) * 1971-02-17 1973-01-02 Amp Domestic Inc Closure device for closing flexible tubes
US3728473A (en) * 1971-10-06 1973-04-17 Thomas & Betts Corp Multi-orificed electrical connector

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3963857A (en) * 1974-09-12 1976-06-15 Amp Incorporated Small magnet wire to lead wire termination
US4003623A (en) * 1974-09-12 1977-01-18 Amp Incorporated Wire securing member with varying serrations
US4212511A (en) * 1978-11-13 1980-07-15 Amp Incorporated Electrical connections for conductors in thin substrates
US4460091A (en) * 1982-09-01 1984-07-17 Champion International Corporation Bag resealing clip
WO1987002194A1 (fr) * 1985-09-30 1987-04-09 Amp Incorporated Connecteur et borne electriques
US4679876A (en) * 1985-09-30 1987-07-14 Amp Incorporated Electrical connector and an electrical terminal
US4646394A (en) * 1986-01-08 1987-03-03 American Cord & Webbing Co., Inc. Cord lock
US5182838A (en) * 1991-08-13 1993-02-02 Stenner John R Filament, cordage locking device
DE102004036829A1 (de) * 2004-07-29 2006-03-23 Sennheiser Electronic Gmbh & Co. Kg Feinstdrahtkontaktierung
US8979601B2 (en) 2010-08-23 2015-03-17 Tyco Electronics Amp Gmbh Electric connecting terminal as well as method and device for producing an electric connecting terminal
EP2693567A3 (fr) * 2012-07-31 2014-12-17 Tyco Electronics Japan G.K. Borne électrique
CN103579791A (zh) * 2012-07-31 2014-02-12 泰科电子日本合同会社 电端子
US8992271B2 (en) 2012-07-31 2015-03-31 Tyco Electronics Japan G.K. Electrical terminal
CN103579791B (zh) * 2012-07-31 2017-04-12 泰科电子日本合同会社 电端子
DE102014115393B3 (de) * 2014-10-22 2016-04-07 Actuator Solutions GmbH Verbindungsanordnung mit einem Crimpverbinder und einem in diesem fixierten Draht
US9419348B2 (en) 2014-10-22 2016-08-16 Actuator Solutions GmbH Connecting arrangement with a crimp connector and a wire fixed in place to the crimp connector
DE102017127288A1 (de) * 2017-11-20 2019-05-23 Phoenix Contact Gmbh & Co. Kg Schirmanschluss
US11739737B2 (en) * 2018-02-07 2023-08-29 Autosplice, Inc. Shape memory alloy filament crimping element
US10637162B2 (en) * 2018-07-06 2020-04-28 Yazaki Corporation Connection structure of the electric-wire and the terminal
GB2576362A (en) * 2018-08-16 2020-02-19 Cambridge Mechatronics Ltd Improved crimping
US11565852B2 (en) * 2019-10-09 2023-01-31 William Buck Garbage can retaining clip apparatus
US20230291137A1 (en) * 2022-03-09 2023-09-14 Te Connectivity Solutions Gmbh Terminal for flat flexible cable having structured dimples
US11990698B2 (en) * 2022-03-09 2024-05-21 Te Connectivity Solutions Gmbh Terminal for flat flexible cable having structured dimples

Also Published As

Publication number Publication date
BE817933A (fr) 1975-01-22
AR199751A1 (es) 1974-09-23
BR7406145D0 (pt) 1975-04-22
GB1435457A (en) 1976-05-12
CH570716A5 (fr) 1975-12-15
AU7070374A (en) 1976-01-08
IT1015335B (it) 1977-05-10
FR2239023B3 (fr) 1977-05-20
DE2435412A1 (de) 1975-02-06
JPS5043490A (fr) 1975-04-19
ES204774Y (es) 1976-05-01
ES204774U (es) 1976-01-16
NL7409777A (nl) 1975-01-29
FR2239023A1 (fr) 1975-02-21
SE7409715L (fr) 1975-01-28

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