WO2015006182A1 - Mechanical lug with dovetail interlock feature - Google Patents

Mechanical lug with dovetail interlock feature Download PDF

Info

Publication number
WO2015006182A1
WO2015006182A1 PCT/US2014/045522 US2014045522W WO2015006182A1 WO 2015006182 A1 WO2015006182 A1 WO 2015006182A1 US 2014045522 W US2014045522 W US 2014045522W WO 2015006182 A1 WO2015006182 A1 WO 2015006182A1
Authority
WO
WIPO (PCT)
Prior art keywords
mechanical lug
flange
inner flange
main body
lug
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.)
Ceased
Application number
PCT/US2014/045522
Other languages
English (en)
French (fr)
Inventor
Robert L. Sokol
Francis SEEHOFFER
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.)
Panduit Corp
Original Assignee
Panduit Corp
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 Panduit Corp filed Critical Panduit Corp
Priority to CN201480034117.XA priority Critical patent/CN105431981B/zh
Priority to EP14741776.0A priority patent/EP3020094B1/en
Priority to JP2016525395A priority patent/JP6228301B2/ja
Priority to KR1020157036919A priority patent/KR102084435B1/ko
Priority to MX2015017030A priority patent/MX372975B/es
Publication of WO2015006182A1 publication Critical patent/WO2015006182A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • H01R4/28—Clamped connections, spring connections
    • H01R4/30—Clamped connections, spring connections utilising a screw or nut clamping member
    • 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
    • H01R4/28—Clamped connections, spring connections
    • H01R4/30—Clamped connections, spring connections utilising a screw or nut clamping member
    • H01R4/36—Conductive members located under tip of screw

Definitions

  • the present invention relates to a mechanical lug, and more particularly to a mechanical lug with an interlock feature.
  • FIGS. 1, 2, and 3A-C illustrate prior art mechanical lug connectors.
  • the mechanical lug 10 illustrated in FIG. 1 includes a main body 12 with overlapping flanges 14, 16 and a mounting tongue 18.
  • the mechanical lug 10 does not include any interlocking features. As such, the flanges 14, 16 tend to open up and separate from each other when tightening the screw 20 that secures the electrical conductor positioned therein.
  • the mechanical lug 30 illustrated in FIGS. 2 and 3A-C is an improvement over the mechanical lug 10 illustrated in FIG. 1.
  • the mechanical lug 30 includes a main body 32 with a mounting tongue 42.
  • the main body 32 has an inner flange 34 with a T-shaped cut out 36 and an overlapping outer flange 37 with a T-shaped flange 38.
  • the T-shaped flange 38 of the outer flange 37 is positioned within the T-shaped cut out 36 of the inner flange 34.
  • the side walls 40 of the inner flange 34 are weakened due to the T-shaped cut out 36.
  • the screw 44 is tightened to secure an electrical conductor, the T-shaped flange 38 pulls upward thereby opening up the lug and separating the flanges from each other.
  • the present invention is directed to a mechanical lug that is used to secure electrical conductors.
  • the mechanical lug has a main body with a mounting tongue extending from the main body.
  • the main body has an inner flange and an overlapping outer flange.
  • the inner flange includes a horizontal member and an interlocking member with angled pockets.
  • the outer flange includes hooks with a tapered face. The hooks of the outer flange are positioned in the angled pockets of the interlocking member of the inner flange to secure the mechanical lug.
  • FIG. 1 is a perspective view of a prior art mechanical lug.
  • FIG. 2 is a perspective view of a prior art mechanical lug.
  • FIG. 3A is a perspective view of the prior art mechanical lug of FIG. 2 with the outer flange extended prior to overlapping the inner flange.
  • FIG. 3B is a side view of the prior art mechanical lug of FIG. 2.
  • FIG. 3C is a cross sectional view of the prior art mechanical lug taken along line 3C-
  • FIG. 4 is a perspective view of the mechanical lug of the present invention.
  • FIG. 5A is a perspective view of the mechanical lug of FIG. 4 with the outer flange extended prior to overlapping the inner flange.
  • FIG. 5B is a side view of the mechanical lug of FIG. 4.
  • FIG. 5C is a cross sectional view of the mechanical lug taken along line 5C-5C of
  • FIG. 5B is a diagrammatic representation of FIG. 5B.
  • FIG. 6 is a front view of the mechanical lug of FIG. 4.
  • FIGS. 4-6 illustrate the mechanical lug 50 of the present invention.
  • the mechanical lug 50 is an integral piece that includes a main body 52 and a mounting tongue 54.
  • the mounting tongue 54 extends from the main body 52 and includes a hole 56 for receiving a fastener to secure the mechanical lug 50 to a bus bar or other device.
  • the main body 52 is formed from sheet metal into a generally box shape designed to accommodate various sizes of electrical conductors.
  • the main body 52 includes a bottom 58, an inner flange 62 and an outer overlapping flange 66.
  • the bottom 58 is generally V-shaped with serrations 60 for receiving the electrical conductor.
  • the serrations 60 increase the wire retention when the conductor is installed thereby improving the strength of the mechanical lug 50.
  • the inner flange 62 includes a horizontal member 63 and an interlocking member 64.
  • the interlocking member 64 includes open sides that define angled pockets 65.
  • the outer overlapping flange 66 has two hooks 68 with tapered faces 70 and an opening 69.
  • the opening 69 of the outer flange 66 receives the interlocking member 64 of the inner flange 62.
  • the hooks 68 with tapered faces 70 are positioned within the angled pockets 65 formed in the interlocking member 64 of the inner flange 62.
  • the pockets 65 of the interlocking member 64 and the tapered faces 70 of the hooks 68 provide a strong dovetailed interlock.
  • a tapped hole 72 at the top of the main body 52 extends through both the outer overlapping flange 66 and the inner flange 62.
  • the tapped hole 72 accommodates a set or cap screw 74 for securing electrical conductors in the main body 52.
  • the dovetailed interlock formed by the inner flange 62 and the outer overlapping flange 66 prevents the main body 52 from separating when the screw 74 is tightened to secure the electrical conductor positioned therein.
  • the interlocking flanges of the mechanical lug of the present invention increase the integrity and the strength of the mechanical lug when compared to prior art lugs. Additionally, the mechanical lug of the present invention is cost effective and easy to manufacture.

Landscapes

  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Connections By Means Of Piercing Elements, Nuts, Or Screws (AREA)
  • Clamps And Clips (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Connection Of Plates (AREA)
  • Motor Or Generator Frames (AREA)
PCT/US2014/045522 2013-07-10 2014-07-07 Mechanical lug with dovetail interlock feature Ceased WO2015006182A1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
CN201480034117.XA CN105431981B (zh) 2013-07-10 2014-07-07 具有燕尾互锁结构的机械接线柱
EP14741776.0A EP3020094B1 (en) 2013-07-10 2014-07-07 Mechanical lug with dovetail interlock feature
JP2016525395A JP6228301B2 (ja) 2013-07-10 2014-07-07 ダブテール連結機能を持つメカニカル・ラグ
KR1020157036919A KR102084435B1 (ko) 2013-07-10 2014-07-07 도브테일 구조의 인터록 특징을 가진 기계식 러그
MX2015017030A MX372975B (es) 2013-07-10 2014-07-07 Lengüeta mecanica con caracteristica de interaseguramiento en cola de milano.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US201361844501P 2013-07-10 2013-07-10
US61/844,501 2013-07-10
US14/323,038 US9293841B2 (en) 2013-07-10 2014-07-03 Mechanical lug with dovetail interlock feature
US14/323,038 2014-07-03

Publications (1)

Publication Number Publication Date
WO2015006182A1 true WO2015006182A1 (en) 2015-01-15

Family

ID=52277430

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2014/045522 Ceased WO2015006182A1 (en) 2013-07-10 2014-07-07 Mechanical lug with dovetail interlock feature

Country Status (8)

Country Link
US (2) US9293841B2 (enExample)
EP (1) EP3020094B1 (enExample)
JP (1) JP6228301B2 (enExample)
KR (1) KR102084435B1 (enExample)
CN (2) CN105431981B (enExample)
MX (2) MX372975B (enExample)
TW (1) TWI614958B (enExample)
WO (1) WO2015006182A1 (enExample)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5973334B2 (ja) * 2012-12-11 2016-08-23 ナブテスコ株式会社 端子接続継ぎ手および端子台
US9293841B2 (en) * 2013-07-10 2016-03-22 Panduit Corp. Mechanical lug with dovetail interlock feature
US10141659B2 (en) * 2016-01-12 2018-11-27 Hubbell Incorporated Exothermic and mechanical electrical connector
CN207009750U (zh) * 2017-05-10 2018-02-13 泰科电子(上海)有限公司 连接器壳体
JP7102134B2 (ja) 2017-12-06 2022-07-19 タイコエレクトロニクスジャパン合同会社 コネクタ
USD881817S1 (en) * 2019-03-05 2020-04-21 Merrill Manufacturing Company Wire connector
CN110534925A (zh) * 2019-07-19 2019-12-03 中航光电科技股份有限公司 一种接触件
TR2021014655A2 (tr) * 2021-09-20 2021-10-21 Yasar Dogan Aktepe Kablo pabuçlari i̇çi̇n ark-plazma sprey kaplama teknoloji̇si̇

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4545640A (en) * 1983-11-25 1985-10-08 Curtis Industries Electrical splicing connector
US5771983A (en) * 1993-07-08 1998-06-30 Richard Hirschmann Gmbh & Co. Screw clamp with u-shaped clamp part
EP2075811A2 (en) * 2007-12-28 2009-07-01 Gewiss S.P.A. Improved terminal, particularly for automatic circuit breakers
DE102009049709A1 (de) * 2009-10-17 2011-04-21 Abb Ag Schraubklemme mit Abdeckung und Installationsschaltgerät

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US2161249A (en) 1935-07-09 1939-06-06 Burndy Engineering Co Inc Terminal screw lug
US2885654A (en) 1954-01-25 1959-05-05 Fed Electric Prod Co Solderless lug
US2907978A (en) 1957-07-25 1959-10-06 Thomas & Betts Corp Electrical connector
FR1529726A (fr) 1967-04-24 1968-06-21 Serre-câble de dérivation
US3638173A (en) 1969-11-12 1972-01-25 Wadsworth Electric Mfg Co The Electrical connecting lug
US3775733A (en) 1971-04-12 1973-11-27 Underwriters Safety Device Co Terminal block and terminal connector
US4603376A (en) 1984-06-19 1986-07-29 Westinghouse Electric Corp. Terminal assembly for circuit breaker and similar apparatus
US5269710A (en) 1990-12-17 1993-12-14 Siemens Energy & Automation, Inc. Lay-in lug
JPH07312235A (ja) * 1994-05-17 1995-11-28 Kawamura Denki Sangyo Kk 回路遮断器の端子構造
US5674079A (en) 1995-05-31 1997-10-07 Electric Motion Company, Inc. Ground lug
US6074121A (en) 1997-06-30 2000-06-13 Thomas & Betts Corporation Fastening lug
US5978208A (en) 1997-12-12 1999-11-02 Eaton Corporation Circuit breaker arrangement with improved terminal collar having interlock sections
JP3690165B2 (ja) * 1998-12-22 2005-08-31 松下電工株式会社 ピラー端子
SG92664A1 (en) * 1999-02-23 2002-11-19 Matsushita Electric Works Ltd Screw-in electrical terminal connector
US6211759B1 (en) 2000-01-12 2001-04-03 Eaton Corporation Ionized gas deflector for a molded case circuit breaker
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CN201490349U (zh) * 2009-09-01 2010-05-26 李永杰 电磁铁插头芯接线柱
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CN102025041B (zh) * 2009-09-23 2013-06-05 西门子公司 接线端子、使用该端子的开关装置及该端子的制造方法
JP2011113680A (ja) * 2009-11-24 2011-06-09 Panasonic Electric Works Co Ltd ねじ端子及びこれを備えるコンセント
TWM401897U (en) * 2010-03-12 2011-04-11 Tatung Co Improved structure of current terminal
US9293841B2 (en) * 2013-07-10 2016-03-22 Panduit Corp. Mechanical lug with dovetail interlock feature

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4545640A (en) * 1983-11-25 1985-10-08 Curtis Industries Electrical splicing connector
US5771983A (en) * 1993-07-08 1998-06-30 Richard Hirschmann Gmbh & Co. Screw clamp with u-shaped clamp part
EP2075811A2 (en) * 2007-12-28 2009-07-01 Gewiss S.P.A. Improved terminal, particularly for automatic circuit breakers
DE102009049709A1 (de) * 2009-10-17 2011-04-21 Abb Ag Schraubklemme mit Abdeckung und Installationsschaltgerät

Also Published As

Publication number Publication date
JP2016528681A (ja) 2016-09-15
MX2019012575A (es) 2020-02-03
CN105431981A (zh) 2016-03-23
US9293841B2 (en) 2016-03-22
KR102084435B1 (ko) 2020-03-04
CN105431981B (zh) 2017-09-26
MX372975B (es) 2020-04-06
CN107634354A (zh) 2018-01-26
US9692145B2 (en) 2017-06-27
MX2015017030A (es) 2016-04-25
JP6228301B2 (ja) 2017-11-08
TWI614958B (zh) 2018-02-11
US20150017843A1 (en) 2015-01-15
EP3020094A1 (en) 2016-05-18
EP3020094B1 (en) 2020-09-09
US20160164194A1 (en) 2016-06-09
KR20160030894A (ko) 2016-03-21
TW201530941A (zh) 2015-08-01

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