EP2355248A1 - Drahtklemmvorrichtung - Google Patents

Drahtklemmvorrichtung Download PDF

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Publication number
EP2355248A1
EP2355248A1 EP11152269A EP11152269A EP2355248A1 EP 2355248 A1 EP2355248 A1 EP 2355248A1 EP 11152269 A EP11152269 A EP 11152269A EP 11152269 A EP11152269 A EP 11152269A EP 2355248 A1 EP2355248 A1 EP 2355248A1
Authority
EP
European Patent Office
Prior art keywords
screw
clamp
plug
metal structure
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Withdrawn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
EP11152269A
Other languages
English (en)
French (fr)
Inventor
Thierry Lopez
Eric Gery
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.)
Mecatraction SAS
Original Assignee
Mecatraction SAS
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 Mecatraction SAS filed Critical Mecatraction SAS
Publication of EP2355248A1 publication Critical patent/EP2355248A1/de
Withdrawn legal-status Critical Current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
    • H01R4/28—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
    • 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
    • H01R4/32—Conductive members located in slot or hole in screw
    • 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
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49117—Conductor or circuit manufacturing

Definitions

  • the present invention generally relates to wire clamps.
  • the present invention relates to clamps suitable for grounding metal structures.
  • Wire clamps for grounding metal structures are adapted to be fixed to metal profiles in a conductive manner. They have clamping means for electrical connection to grounding wires. Such clamps are especially used for the grounding of metal structures such as, for example, modules of aluminum photovoltaic panels and their support frames.
  • wire clamps for grounding a metal structure comprising a body having a threaded cylindrical cavity opening at a first end of the body, the other end being closed by a bottom pierced with a hole for the passage for a screw or a bolt fixing the body to the metal structure.
  • the body has on a portion of the threaded cavity two through slots facing one another made according to two generatrices of the cylindrical cavity and opening at said first end.
  • a threaded plug having a rotational drive footprint is engaged helically in the tapping of the cylindrical cavity to clamp a core of an electrical wire against the bottom of the slots.
  • This structure requires first inserting the screw or stud in the body of the clamp and then insert the body of the screw in a hole of the metal structure and tighten the screw against the metal structure, using , if necessary, a nut and possibly a washer.
  • a nut and possibly a washer In the case of metal structures covered, for example, with an anti-rust layer, it is necessary to provide a fan-type washer to cross this layer to tighten to ensure good electrical contact.
  • the present invention aims to overcome these disadvantages.
  • the present invention aims to improve and make reliable the known wire clamps.
  • the present invention proposes for this purpose a wire clamp for grounding a metal structure having a body having a threaded cylindrical cavity opening at a first end of the body, the other end being closed by a bottom pierced with a hole for the passage of a fastening screw of the body on the metal structure, the body having on at least part of the threaded cavity two through slots facing each other formed along two generatrices of the cylindrical cavity and opening at said first end and a threaded plug having a rotational drive cavity and adapted to engage helically in the tapping of the cylindrical cavity for clamping a core of an electrical wire against the bottom of the slots, the plug having a central opening hole adapted to allow a rotating drive tool to pass for the body fixing screw on the structure m étallique.
  • the wire clamp can be fixed on the metal structure by tightening the fixing screw without having to disassemble the plug.
  • the plug will not be lost during the installation of the cable clamp.
  • the central hole makes it easier to guide the clamping tool to a corresponding cavity in the screw head.
  • the screw is captive when the plug is in place.
  • the screw being previously inserted into the corresponding hole and the cap screwed into the body, the latter can be fixed on the metal structure without having to remove the cap, which contributes to the reliability of the assembly and the ease of set up.
  • the risk of losing an element of the cable clamp according to the invention during its installation is zero, since the screw is trapped in the body and the plug.
  • the screw is centered and guided in rotation during its tightening on the metal structure to be connected.
  • a wire clamp 1 for grounding a metal structure comprises a body 10 having a threaded cylindrical cavity 11 opening at the upper end of the body and closed by a bottom 12 pierced with a hole 13 for the passage of a fastening screw 20 of the body 10 on the metal structure.
  • the body 10 has, according to two generatrices of the cylindrical cavity 11, two slots 14 opposite each other and intended to receive a grounding wire (not shown).
  • a threaded cap is adapted to engage helically in the tapping of the cylindrical cavity 11.
  • the plug has two diametrically opposed notches 31 forming rotational drive cavities for a flat screwdriver to tighten the cap against the electric wire placed against the bottom of the slots 14.
  • the screw 20 has a head 21 with a cruciform drive 22 and a threaded screw body 23.
  • the plug 30 further has a central hole 32 opening.
  • the outside diameter of the screw head 21 is greater than the diameter of the central hole 32 of the
  • the hole 32 is sufficient to allow a rotating drive tool 40 to come and screw the fastening screw of the body 10 onto the metal structure (not shown) through the plug.
  • a rotating drive tool 40 is a Phillips screwdriver 40 whose end corresponds to the footprint 22 of the screw.
  • the bottom 12 of the clamp body has a conical surface 15 making contact with the lower surface itself conical of the screw head 21.
  • This structure contributes on one hand, to a good contact electrical connection between the screw 20 and the body of the wire clamp 10 and, secondly, a centering and guiding of the rotating screw during its tightening.
  • the screw being self-tapping, the electrical contact is established between the threading thereof and the thread that it is machined in the metal structure to be connected.
  • a metal structure is grounded in a particularly simple and effective manner.
  • a shape hexagonal outer member 16 adapted to cooperate with a flat key allowing the operator to maintain the body 10 immobile in rotation during the two successive tightenings mentioned above.
  • Other embodiments are within the reach of the skilled person, such as two flats on either side of the body to cooperate with a flat key or a radial bore opening to cooperate with a torsion locking pin.
  • the body 10 of the wire clamp has a hexagonal outer shape from its base on a height substantially corresponding to the height of a flat key, then has a cylindrical outer shape.
  • the body of the wire clamp, the plug and the fixing screw 20 are made of a material that is both conductive and resistant to corrosion, such as stainless steel.
  • the figure 5 is an exploded perspective view of a same wire clamp composed of a body 10 and a plug 30 in which a self-tapping screw 25 has been inserted.
  • cruciform recess 22 shown in the example described above can be replaced by any other form of imprint within the reach of the art without departing from the scope of the invention. This may be for example a hexagon socket or an imprint for a flat screwdriver.

Landscapes

  • Connections By Means Of Piercing Elements, Nuts, Or Screws (AREA)
  • Clamps And Clips (AREA)
EP11152269A 2010-01-29 2011-01-26 Drahtklemmvorrichtung Withdrawn EP2355248A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1050624A FR2955977B1 (fr) 2010-01-29 2010-01-29 Serre-fil

Publications (1)

Publication Number Publication Date
EP2355248A1 true EP2355248A1 (de) 2011-08-10

Family

ID=42697540

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11152269A Withdrawn EP2355248A1 (de) 2010-01-29 2011-01-26 Drahtklemmvorrichtung

Country Status (5)

Country Link
US (1) US20110189901A1 (de)
EP (1) EP2355248A1 (de)
CN (1) CN102280724A (de)
FR (1) FR2955977B1 (de)
ZA (1) ZA201100756B (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8485852B2 (en) * 2011-11-10 2013-07-16 Dinkle Enterprise Co., Ltd. Wire locking structure
EP3386033B1 (de) * 2017-04-07 2021-06-09 Lapp Engineering AG Isolierkörper für eine steckverbindereinheit
CN109990159A (zh) * 2019-04-03 2019-07-09 宁波恒元精工管阀科技有限公司 用于电熔管件的接线柱
CN112290339B (zh) * 2020-09-11 2022-06-10 泰州市航宇电器有限公司 一种连接器卡圈快速压配装置及其压配方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE468257C (de) * 1928-11-09 Voigt & Haeffner Akt Ges Anordnung einer Schlitzklemme
GB449152A (en) * 1934-09-17 1935-03-23 A C A M Soc Improved tapping or junction box, more particularly adapted to receive an electric lamp
US2006794A (en) * 1933-03-28 1935-07-02 Davidson Philip Wire and cable connecter and terminal
US3144293A (en) * 1962-09-13 1964-08-11 Allen Bradley Co Dual terminal connector
FR2627559A1 (fr) * 1988-02-19 1989-08-25 Souriau & Cie Ecrou de fixation a pans muni de passages d'angles
US6155846A (en) * 2000-01-03 2000-12-05 Motorola, Inc. Electrical contactor assembly

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2885654A (en) * 1954-01-25 1959-05-05 Fed Electric Prod Co Solderless lug
US2805402A (en) * 1956-02-10 1957-09-03 Charles L Lucal Pressure type solderless connector
US3538492A (en) * 1968-04-19 1970-11-03 Circle F Ind Inc Heavy duty receptacle and blade assembly
US3776299A (en) * 1969-09-15 1973-12-04 Freeman Supply Co Guide bushing assembly for flask, patterns, and the like
US4768963A (en) * 1983-07-13 1988-09-06 Barron Earl L Ground adapter
US4925395A (en) * 1987-11-05 1990-05-15 Franks George J Jr Clamp for electrically conductive strips
IT8819772A0 (it) * 1988-03-15 1988-03-15 Honeywell Bull Spa Dispositivo selettivo a terra per apparecchiature elettroniche.
US4917615A (en) * 1988-11-18 1990-04-17 Franks George J Jr Ground bracket
US5597314A (en) * 1993-05-05 1997-01-28 Electric Motion Company, Inc. Cable shield ground clamp
US5749754A (en) * 1996-07-19 1998-05-12 Ericsson, Inc. Radiotelephone having a combination fastener and electrical connector
JP3419442B2 (ja) * 1999-02-03 2003-06-23 船井電機株式会社 コネクター取付構造
CN2388724Y (zh) * 1999-09-21 2000-07-19 陈良富 导线接线座
KR200376471Y1 (ko) * 2004-12-09 2005-03-10 엘지산전 주식회사 전자접촉기의 단자 접속장치
DE102007060077A1 (de) * 2007-04-19 2008-10-30 Abb Ag Schraubklemme und Installationsgerät
US7780461B1 (en) * 2009-03-03 2010-08-24 Mike Vernica Midpoint cable electrical ground clamp
US7909623B2 (en) * 2009-04-17 2011-03-22 Chun-Te Lee Wedge of a cable connector grounding device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE468257C (de) * 1928-11-09 Voigt & Haeffner Akt Ges Anordnung einer Schlitzklemme
US2006794A (en) * 1933-03-28 1935-07-02 Davidson Philip Wire and cable connecter and terminal
GB449152A (en) * 1934-09-17 1935-03-23 A C A M Soc Improved tapping or junction box, more particularly adapted to receive an electric lamp
US3144293A (en) * 1962-09-13 1964-08-11 Allen Bradley Co Dual terminal connector
FR2627559A1 (fr) * 1988-02-19 1989-08-25 Souriau & Cie Ecrou de fixation a pans muni de passages d'angles
US6155846A (en) * 2000-01-03 2000-12-05 Motorola, Inc. Electrical contactor assembly

Also Published As

Publication number Publication date
US20110189901A1 (en) 2011-08-04
CN102280724A (zh) 2011-12-14
ZA201100756B (en) 2011-10-26
FR2955977B1 (fr) 2012-08-03
FR2955977A1 (fr) 2011-08-05

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