EP0914663B1 - Electrical terminal with finger-proof protection - Google Patents

Electrical terminal with finger-proof protection Download PDF

Info

Publication number
EP0914663B1
EP0914663B1 EP98925508A EP98925508A EP0914663B1 EP 0914663 B1 EP0914663 B1 EP 0914663B1 EP 98925508 A EP98925508 A EP 98925508A EP 98925508 A EP98925508 A EP 98925508A EP 0914663 B1 EP0914663 B1 EP 0914663B1
Authority
EP
European Patent Office
Prior art keywords
seat
slider
lower wall
opening
terminal
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
EP98925508A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0914663A1 (en
Inventor
Domenico Bosatelli
Augusto Contardi
Sergio Pianezzola
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.)
Gewiss SpA
Original Assignee
Gewiss SpA
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 Gewiss SpA filed Critical Gewiss SpA
Publication of EP0914663A1 publication Critical patent/EP0914663A1/en
Application granted granted Critical
Publication of EP0914663B1 publication Critical patent/EP0914663B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/02—Bases, casings, or covers
    • H01H9/0264—Protective covers for terminals
    • 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
    • H01R4/38—Clamped connections, spring connections utilising a clamping member acted on by screw or nut

Definitions

  • the present invention relates to an electrical terminal with finger-proof protection.
  • connecting terminals generally constituted by a slider which is actuated by a screw and is suitable to press the end of a wire in contrast with a fixed part which is rigidly coupled to the body of the device.
  • the slider generally moves within a seat provided with a transverse hole for the insertion of the end of the wire and with an axial hole for accessing the head of the screw by means of a conventional screwdriver.
  • a problem of conventional terminals is that the transverse hole, which must be substantially larger than the cross-section of the wire, remains open even after the terminal has been closed and the wire has been secured inside it.
  • Another problem of conventional terminals is due to the fact that it is possible to mistakenly insert the wire outside the moving body, preventing correct engagement of the end.
  • Terminals have been proposed which have a diaphragm which is rigidly coupled to the sliding body and is suitable to partially close the opening once the terminal has been tightened.
  • Another drawback is that the diaphragm partially overlaps the edge of the sliding part, preventing the abutment of the sheath of the electric wire against the moving part of the terminal. In other words, it has been found that the partial protection of the edge of the slider by the diaphragm does not allow to insert the wire fully in the seat.
  • EP-A-683498 discloses a connection terminal having an insulating plate that can be introduced into a passage opening below the housing of the terminal and is provided with elastic gripping arms. The curved ends of these arms are adapted to fix into the housing on the movable element of the terminal when the latter is in a position below the housing.
  • the aim of the present invention is to provide an electrical terminal with finger-proof protection, particularly for electrical devices, in which the wire insertion opening remains substantially closed once the wire has been secured.
  • An object of the invention is to provide a terminal which is constructively very simple.
  • a further object is to provide a terminal which can be assembled easily and in a manner which is substantially similar to that of conventional terminals without significantly increasing production times and costs.
  • a further object is to provide a terminal whose use is extremely simple and entirely similar to the use of conventional terminals.
  • an electrical terminal with finger-proof protection comprising a body which can slide within a seat which is adapted to accommodate the end of an electrical conductor to be connected, said seat having a longitudinal transverse opening for the insertion of said electric conductor, said sliding body having an actuation means for its sliding within said seat and at least one lower wall, provided with a front edge, and adapted to co-operate with a fixed contact member which is rigidly coupled to said seat in order to clamp said electrical conductor; said electrical terminal further comprising a diaphragm member which is rigidly associated with said slider, below said lower wall, and is adapted to at least partially block said opening after said electric conductor has been inserted in said seat and clamped between said fixed contact and said surface of said slider; characterized in that said lower wall of said slider has a hook which locks an insulating member externally with respect to said lower wall, said insulating member having a front side which forms said diaphragm member and which faces said opening.
  • the terminal with finger-proof protection includes an insulating body 3 which can be an integral part of an electrical device (not shown), such as for example a breaker, which forms a seat 5 for a sliding body or slider 7.
  • an electrical device such as for example a breaker, which forms a seat 5 for a sliding body or slider 7.
  • the seat 5 has at least one opening 9 for the insertion of an electrical conductor, such as for example an end 11, with the sheath 15 removed, of an electric wire 13.
  • the operation of the terminal according to the invention is evident.
  • the end 11 of the wire 13 is inserted through the opening 9 into the slider 7 between the lower wall 21 and a fixed contact 33 which is rigidly coupled to the body 3.
  • the slider 7 is moved toward the fixed contact 33 and the end 11 of the wire is clamped between the lower wall 21 of the slider and the fixed contact 33.
  • the front side 29 of the insulating member 27 constitutes a diaphragm and obstructs the opening 9 so as to prevent the accidental insertion of a finger, for example.
  • the materials used, as well as the dimensions, may of course be any according to the requirements and the state of the art.

Landscapes

  • Connections Arranged To Contact A Plurality Of Conductors (AREA)
  • Breakers (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
  • Thermistors And Varistors (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
EP98925508A 1997-05-20 1998-04-30 Electrical terminal with finger-proof protection Expired - Lifetime EP0914663B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
ITMI970354U 1997-05-20
IT1997MI000354U IT237508Y1 (it) 1997-05-20 1997-05-20 Struttura di morsetto con protezione a prova di dito,particolarmenteper apparecchiature elettriche
PCT/EP1998/002559 WO1998053470A1 (en) 1997-05-20 1998-04-30 Electrical terminal with finger-proof protection

Publications (2)

Publication Number Publication Date
EP0914663A1 EP0914663A1 (en) 1999-05-12
EP0914663B1 true EP0914663B1 (en) 2007-11-07

Family

ID=11376083

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98925508A Expired - Lifetime EP0914663B1 (en) 1997-05-20 1998-04-30 Electrical terminal with finger-proof protection

Country Status (6)

Country Link
EP (1) EP0914663B1 (xx)
AT (1) ATE377836T1 (xx)
AU (1) AU7760398A (xx)
DE (1) DE69838661T2 (xx)
IT (1) IT237508Y1 (xx)
WO (1) WO1998053470A1 (xx)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19951789A1 (de) * 1999-10-27 2001-05-03 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Anschlussklemme
FR2806215B1 (fr) * 2000-03-10 2004-02-06 Schneider Electric Ind Sa Borne de raccordement de conducteurs a un appareil electrique
AT410613B (de) * 2001-03-20 2003-06-25 Moeller Gebaeudeautomation Kg Liftklemme
AT500453B8 (de) * 2004-01-27 2007-02-15 Moeller Gebaeudeautomation Kg Liftklemme
EP1983541A1 (de) * 2007-04-19 2008-10-22 Abb Ag Schraubklemme und Installationsgerät
FR2917243B1 (fr) 2007-06-11 2009-07-10 Schneider Electric Ind Sas Borne de raccordement electrique et appareil de protection electrique comportant une telle borne
ITGE20070130A1 (it) * 2007-12-28 2009-06-29 Gewiss Spa Morsetto perfezionato, particolarmente per interruttori automatici
CN101859654A (zh) * 2010-06-11 2010-10-13 黄大淼 墙壁开关、插座的接卸线装置
DE102012012361B4 (de) 2012-06-22 2019-06-13 Phoenix Contact Gmbh & Co. Kg Elektrische Anschlussklemme

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2612340B1 (fr) * 1987-03-13 1993-02-12 Merlin Gerin Borne de raccordement multiple pour appareil electrique modulaire
IT1264956B1 (it) * 1993-07-20 1996-10-17 Bticino Spa Apparecchiatura elettrica modulare con protezione intrinseca a prova di dito di morsetti di serraggio
FR2720195B1 (fr) * 1994-05-18 1996-08-02 Legrand Sa Appareil électrique modulaire à bornes de raccordement protégées par une plaquette isolante.
FR2738676B1 (fr) * 1995-09-11 1997-11-14 Legrand Sa Appareil electrique a bornes de raccordement protegees par un diaphragme

Also Published As

Publication number Publication date
WO1998053470A1 (en) 1998-11-26
DE69838661T2 (de) 2008-08-28
ITMI970354V0 (xx) 1997-05-20
DE69838661D1 (de) 2007-12-20
ITMI970354U1 (it) 1998-11-20
ATE377836T1 (de) 2007-11-15
EP0914663A1 (en) 1999-05-12
AU7760398A (en) 1998-12-11
IT237508Y1 (it) 2000-09-13

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