EP1073145A1 - Garniture de borne - Google Patents

Garniture de borne Download PDF

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Publication number
EP1073145A1
EP1073145A1 EP99913640A EP99913640A EP1073145A1 EP 1073145 A1 EP1073145 A1 EP 1073145A1 EP 99913640 A EP99913640 A EP 99913640A EP 99913640 A EP99913640 A EP 99913640A EP 1073145 A1 EP1073145 A1 EP 1073145A1
Authority
EP
European Patent Office
Prior art keywords
terminal fitting
stripping
electric
wire
electric 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.)
Withdrawn
Application number
EP99913640A
Other languages
German (de)
English (en)
Inventor
Hirokazu Mirai Kogyo Co. KAWAMURA
Akihiro Mirai Kogyo Co. SAKAI
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.)
Mirai Kogyo KK
Original Assignee
Mirai Kogyo KK
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 Mirai Kogyo KK filed Critical Mirai Kogyo KK
Publication of EP1073145A1 publication Critical patent/EP1073145A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/02—Details
    • H01H13/12—Movable parts; Contacts mounted thereon
    • H01H13/20—Driving mechanisms
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
    • H01R11/11—End pieces or tapping pieces for wires, supported by the wire and for facilitating electrical connection to some other wire, terminal or conductive member
    • H01R11/12—End pieces terminating in an eye, hook, or fork
    • 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
    • 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
    • H01R43/015—Handtools

Definitions

  • This invention generally relates to an electric terminal fitting which provides electrical connection between an insulated electric wire and an electrical abject.
  • an electric terminal fitting 200 consisting of a cylindrical body 201 and an electric terminal as shown in Fig. 13 is widely utilized.
  • the coating or covering of a coated or insulated electric wire is first partially removed or stripped of its covering from an end portion of the electric wire such that a length of its conductive core wire is exposed at the end portion of the electric wire.
  • the exposed core wire portion is inserted into the cylindrical body 201 of the electric terminal, fitting 200.
  • the cylindrical body 201 is pinched with appropriate pinching means such that the cylindrical body 201 is deformed and the inserted core wire reliably contacts and is held by the cylindrical body 201 internally.
  • This electric terminal fitting 300 made of a plastic material comprises a housing 304 provided with two wire receptacle grooves 301 formed side by side in a base 303 which respectively receive two insulated electric wires to be electrically interconnected (not shown).
  • the fitting 300 further includes a conductive metal plate 302 having two open slots, which is mounted on these receptacle grooves 301 as shown in Fig. 14.
  • the term "open slot” signifies "slot whose one end is open”.
  • the cover grooves 304 separately formed are each provided with a socket groove having a wire press protrusion. Each cover groove 304 partially receives the metal plate 302 when pressed hard onto the corresponding receptacle groove 301 against the metal plate 302, and presses the electric wire laid along that receptacle groove 301 into the corresponding open slot.
  • the coverings of the insulated electric wires which contact the slots are peeled or stripped as the electric wires are forcedly pressed down through the slots whose gaps are substantially narrower than the diameters of the insulated electric wires. Those two electric wires are thus electrically connected via the conductive metal plate 302 that physically contacts the exposed core wires (not shown) of the electric wires.
  • the terminal fitting 300 is rather complicated in design, requiring considerable manufacturing cost and time for assembly, which is a great disadvantage with such an "adjunctive" type article.
  • the cover grooves 304 may accidentally come off the receptacle grooves 301 in use.
  • An electric terminal, fitting according to the present invention is formed three-dimensionally in one piece from a single conductive metal sheet piece, greatly contributing in reducing manufacturing time and cost.
  • the electric terminal, fitting of the present invention is provided with wire covering stripping means and electric terminal means, the former providing covering removal of an insulated electric wire and the latter providing electrical connection with an external electrical object.
  • Stripping of the covering of an insulated electric wire is physically provided by pressing the electric wire against the stripping means with pinching means, which is done by plastically deforming a portion of the terminal fitting.
  • An exposed core wire portion of the electric wire physically contacts the conductive terminal fitting at the conductive stripping means, and the electric wire and the electrical object which is connected to the electric terminal means are electrically interconnected. The physical contact between the exposed core wire and the stripping means is reliably retained.
  • the electric terminal fitting 100 shown in Fig. 1 is made of a single metal sheet piece cut out from a larger conductive metal sheet.
  • the terminal fitting 100 is provided with an electric terminal 10 and pinching means comprising paired pinching members 20a and 20b.
  • the electric terminal 10 is provided with a circular opening 11 to be used for electrically connecting an external electric object (not shown) therewith.
  • the lower pinching member 20a is formed by bending a middle portion of the metal piece in a deep U shape to receive the upper pinching member 20b within the U depression provided between two walls.
  • the pinching member 20a is provided with two open slots, a wire support slot 22a and a stripping slot 23, respectively provided on the dual walls of the pinching member 20a as shown in Fig.1, both of which open toward the pinching member 20b.
  • the wire support slot 22a receives and supports an electric wire and is provided wider than the stripping slot 23 in this embodiment.
  • the pinching member 20b is provided with a press depression or slot 24 which opens toward the pinching member 20a.
  • the press depression or slot 24 is generally formed wider than the slots 22a and 23.
  • the stripping slot 23 is provided with stripping corners 21 at its open mouth that will, strip an insulated electric wire "crosswise" or “across” as will be easily appreciated by a person skilled in the art.
  • the stripping corners 21 also assist in introducing the electric wire placed thereon into the stripping slot 23.
  • the press slot 24 is provided with a press end which presses an electric wire deep into the stripping slot 23.
  • the pinching members 20a and 20b are integrally connected through a bent portion 30, which is to be further bent to press the electric wire into the stripping slot 23.
  • the electric terminal 10 is provided on an end of the metal piece and the upper pinching member 20b is provided on the other end of the metal piece, with the lower pinching member 20a provided therebetween.
  • the bent portion 30 is formed with two parallel bent strips having a void 31b therethrough.
  • An end portion of an insulated electric wire D is inserted through the void 31b to be laid on the stripping corners 21, which is pressed with the press end of the press slot 24 into the stripping slot 23 forcedly as the stripping members 20a and 20b are pinched with a pinching device 51 toward each other as depicted in Fig.2.
  • the electric wire D is stripped crosswise or across of its covering as the distance between the stripping corners 21 (and the width of the stripping slot 23) are substantially smaller than the diameter of the insulated electric wire D.
  • An exposed core wire portion of the electric wire D (not shown) reliably contacts the edges of the conductive stripping slot 23 and provides electrical connection therewith.
  • This terminal fitting 100 is somehow simpler in structure than the terminal fitting of the first embodiment. Its upper pinching member 20b is provided directly from its electric terminal 10, its lower pinching member 20a with a U-shape depression being provided at an end portion of a conductive metal piece. The bending or deformation of this terminal fitting 100 is provided through changing the "angle" of the upper pinching member 20b.
  • the pinching member 20b is located at a portion of the electric terminal 10 as shown in Fig.4, having a press slot 24 as indicated with a broken line which is used to press an insulated electric wire D laid on the pinching slot 23 and the support slot 22a into the pinching slot 23 and the support slot 22a.
  • the stripping slot 23 of the pinching member 20a is provided with stripping corners 21 as described in connection with the first embodiment.
  • An end portion of an electric wire D is placed between the upper and lower pinching members 20b and 20a and on the stripping slot 23 as shown in Fig. 5.
  • the stripping member 20b is pressed onto the electric wire D and pushes the electric wire D into the slot 23 as the stripping member 20b is pressed into the U-shape depression of the stripping member 20a, when the electric wire D is stripped crosswise of its covering as described in connection with the first embodiment.
  • the stripped wire D will be firmly retained in the slot 23, providing stable electrical connection with the terminal fitting 100 by securely contacting therewith at its conductive core wire (not shown). As with the first embodiment, there is no need to separately remove the covering of the electric wire D in an extra step.
  • Figs. 6 and 7 show an electric terminal fitting according to a third embodiment of the present invention.
  • This terminal fitting 100 is provided having an electric terminal 10, paired pinching members 20a and 20b and a bent portion 30 connecting the pinching members 20a and 20b.
  • the pinching member 20a with a U-shape depression is provided on an end portion of a conductive metal piece and the electric terminal 10 is provided on the opposite end of the metal piece with the pinching member 20b and the bent portion 30 provided inbetween.
  • the bent portion 30 is provided by two parallel strips as in the first embodiment giving a void 31b therethrough.
  • a wire support slot 22a, a stripping slot 23 and a press slot 24 having a press end as well as stripping corners 21 are provided as set forth earlier in connection with the foregoing embodiments.
  • An insulated electric wire D is inserted through the void 31b between the pinching members 20a and 20b onto the stripping slot 23 and the support slot 22a to be pressed with the press end of the press slot 24 into the stripping slot 23 as shown in Fig. 7 as the pinching member 20b enters the U-shape depression of the pinching member 20a.
  • the insulated electric wire D is stripped across.
  • the terminal 10 is provided with a partially circular part which is used to electrically connect with an external electrical object (not shown).
  • the electric wire D stripped crosswise of its covering is securely held within the stripping slot 23, providing electrical connection between its exposed core wire and the conductive edges of the stripping slot 23 as explained earlier in connection with the previous embodiments.
  • this terminal fitting 100 is the most complicated among the four embodiments of the present invention illustrated herein, and substantially differs in structure from the previous three embodiments. However, this terminal fitting 100 is also prepared from a single conductive metal sheet piece as the foregoing embodiments, having common features.
  • This terminal fitting 100 includes an annular electric terminal 10 having a circular opening 11 to be used for electrically connecting with an electrical object (not shown), a lower dual protrusion 20a, another lower dual protrusion 20b, an upper dual protrusion 20c, a hook protrusion 42, and a bent portion 30 consisting of two parallel bar members.
  • the dual protrusion 20a is provided with an open stripping slot 21a and stripping edges 23a.
  • the dual protrusion 20b is provided with an open stripping slot 21b and stripping edges 23b.
  • the dual protrusion 20c is also provided with an open stripping slot 21c and stripping edges 23c.
  • the terminal, fitting 100 further includes a rectangular opening 41 which is provided in the terminal 10 and receives the hook protrusion 42 therethrough.
  • the rectangular opening 41 and the hook protrusion 42 together provide deformation retaining means.
  • a bottom opening 40c which receives an end portion of the upper dual protrusion 20c.
  • End portions of the dual protrusion 20a and the dual protrusion 20b are respectively received in an upper opening 40a and another upper opening 40b provided in front and rear of the upper dual protrusion 20c.
  • the terminal fitting 100 further includes a wire void 31b formed between and through the parallel bar members of the bent portion 30 to receive an end portion of an insulated electric wire.
  • This electric terminal fitting 100 is used to strip covering of an insulated electric wire at three places, namely in the slots 21a, 21b and 21c, and can provide highly reliable and stable electrical connection between the electric wire and the terminal fitting 100 or the terminal 10.
  • the electric wire can be held very securely by the terminal fitting 100 as the wire is held firmly at three places.
  • This electric terminal fitting 100 is utilized in the following manners and provides electrical connection between an insulated electric wire and an electrical object through the conductive electric terminal 10 without need to strip the covering of the electric wire in a separate operation.
  • an insulated electric wire D is inserted into the electric fitting 100 through the void 31b onto the open mouths of the dual protrusions 20a and 20b.
  • the terminal fitting 100 is pinched with a pinching device 51 indicated in broken lines in Fig. 9 as described earlier such that the bent portion 30 is further bent and the upper dual protrusion 20c and the lower dual protrusions 20a and 20b come closer with the electric wire D placed inbetween until an end portion of the upper dual protrusion 20c comes in the bottom opening 23b and end portions of the lower dual protrusions 20a and 20b are respectively received in the upper openings 40a and 40b.
  • the hook protrusion 42 which is formed substantially longer than the dual protrusions 20a, 20b and 20c is received through the rectangular opening 41 with its end portion then bent as shown in Fig. 10 so as to securely retain the deformation of the fitting 100 as depicted in Fig.10.
  • the book protrusion 42 helps control bending or deformation of the fitting 100 by preventing the pinching performance of the fitting 100 from going astray.
  • the electric wire D is adequately stripped of its covering crosswise by means of the stripping edges 21a, 21b and 21c respectively provided on the stripping slots 20a, 20b and 20c as the wire D is forcedly pressed deep into the respective slots 23a, 23b and 23c which are tapered towards the bottom.
  • the exposed core wire (not shown) of the electric wire D thus securely contacts the conductive edges of the dual protrusions 20a, 20b and 20c and is securely held in the slots 23a, 23b and 23c as described earlier in connection with the foregoing embodiments.
  • Figs.11 and 12 show alternative stripping slots.
  • a stripping slot 23d of a pinching member 20d is a triangular configuration whose open mouth "L" is wider than the diameter of an insulated electric wire D. The covering of the wire D will be removed across at stripping portions 21d of the stripping slot 23d as will be appreciated by a person skilled in the pertinent art.
  • Fig.12 shows another stripping slot 23e of a pinching member 20e, which is provided with stripping protrusions 21e as shown.
  • the stripping protrusions 21e provided as such will strip the covering of an insulated electric wire D crosswise to expose its core wire when the electric wire D passes between the stripping protrusions 21e.
  • the exposed core wire (not shown) of the electric wire D will provide electrical connection with the slot 23e when the electric wire D substantially reaches the bottom of the slot 23e.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Connections By Means Of Piercing Elements, Nuts, Or Screws (AREA)
  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
EP99913640A 1998-04-14 1999-04-12 Garniture de borne Withdrawn EP1073145A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP10260398 1998-04-14
JP10260398 1998-04-14
PCT/JP1999/001949 WO1999053570A1 (fr) 1998-04-14 1999-04-12 Garniture de borne

Publications (1)

Publication Number Publication Date
EP1073145A1 true EP1073145A1 (fr) 2001-01-31

Family

ID=14331822

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99913640A Withdrawn EP1073145A1 (fr) 1998-04-14 1999-04-12 Garniture de borne

Country Status (4)

Country Link
EP (1) EP1073145A1 (fr)
KR (1) KR20010071153A (fr)
TW (1) TW406449B (fr)
WO (1) WO1999053570A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005018054A1 (fr) * 2003-08-05 2005-02-24 3M Innovative Properties Company Element borne / fil electrique
DE10345202A1 (de) * 2003-09-29 2005-04-28 Electro Terminal Gmbh & Co Kg Befestigung von Leitern an Leiterplatten

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI556516B (zh) * 2014-07-09 2016-11-01 廖生興 安全快速連接裝置
CN110912357B (zh) * 2018-09-18 2022-04-05 联合汽车电子有限公司 理线紧固装置以及方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01122265U (fr) * 1988-02-15 1989-08-18
JPH0249068U (fr) * 1988-09-30 1990-04-05
JPH0520263U (ja) * 1991-08-29 1993-03-12 昭一 庭野 圧着端子
JPH07282944A (ja) * 1994-04-06 1995-10-27 Yazaki Corp 圧接端子の電線圧接方法及び圧接端子構造
JP3112811B2 (ja) * 1995-06-19 2000-11-27 矢崎総業株式会社 圧接コネクタおよびその製造方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9953570A1 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005018054A1 (fr) * 2003-08-05 2005-02-24 3M Innovative Properties Company Element borne / fil electrique
DE10345202A1 (de) * 2003-09-29 2005-04-28 Electro Terminal Gmbh & Co Kg Befestigung von Leitern an Leiterplatten

Also Published As

Publication number Publication date
WO1999053570A1 (fr) 1999-10-21
KR20010071153A (ko) 2001-07-28
TW406449B (en) 2000-09-21

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