EP0654858A1 - Electrical socket with keying system - Google Patents

Electrical socket with keying system Download PDF

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Publication number
EP0654858A1
EP0654858A1 EP94410103A EP94410103A EP0654858A1 EP 0654858 A1 EP0654858 A1 EP 0654858A1 EP 94410103 A EP94410103 A EP 94410103A EP 94410103 A EP94410103 A EP 94410103A EP 0654858 A1 EP0654858 A1 EP 0654858A1
Authority
EP
European Patent Office
Prior art keywords
shutter
plug
pins
socket
studs
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.)
Granted
Application number
EP94410103A
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German (de)
French (fr)
Other versions
EP0654858B1 (en
Inventor
Reynald Marin-Pache
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.)
Merlin Gerin SA
Schneider Electric SE
Original Assignee
Merlin Gerin SA
Schneider Electric SE
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.)
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Publication date
Application filed by Merlin Gerin SA, Schneider Electric SE filed Critical Merlin Gerin SA
Publication of EP0654858A1 publication Critical patent/EP0654858A1/en
Application granted granted Critical
Publication of EP0654858B1 publication Critical patent/EP0654858B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/44—Means for preventing access to live contacts
    • H01R13/447—Shutter or cover plate
    • H01R13/453—Shutter or cover plate opened by engagement of counterpart
    • H01R13/4532—Rotating shutter

Definitions

  • the present invention relates to a socket outlet comprising a support element for current distribution cells, a front faceplate arranged to receive a plug provided with pins of electrical equipment, a cassette disposed between said support element and said front plate and containing a retractable shutter designed to occupy a rest position in which it closes openings made in the front plate and designed to give said pins access to said current distribution cells, and a withdrawn position in which it releases said openings .
  • the keying function is defined in that the opening of said retractable shutter can only be carried out by a socket outlet plug comprising an additional accessory authorizing its introduction into said base.
  • sockets of this type in particular from the French patent application published under No. 2,584,873 which describes a retractable shutter in the shape of a tee blocking access to the cells of the base.
  • the so-called polarized plug is characterized by the addition of a third pin of a length slightly greater than the conductive pins. This pin is intended to cooperate with an inclined plane located on the tee leg so as to generate the rotation of the retractable shutter and thus free access to the cells for the conductive pins.
  • This system achieves the desired keying function well, but slightly to the detriment of safety since a single action makes it possible to open the shutter while said opening must require the simultaneous action of two pins to comply with the safety level normally required.
  • the present invention proposes to overcome these drawbacks by providing a socket outlet as defined above, which guarantees effective sealing of the access openings to the contact cells, having a security preventing any accidental or voluntary insertion of a pointed element other than the pins of an appropriate socket in said openings for access to the cells and further comprising polarizing means.
  • the socket outlet 10 shown mainly consists of an element 11 for supporting the current distribution cells 12, a cassette 13 for mounting, a shutter 14, a return spring 15 and a front faceplate 16 mounted at the front of the socket outlet 10.
  • This base is intended to receive a plug 32 which will be described in more detail below.
  • the element 11 for supporting the cells 12 is a molded plastic part, for example of circular section, comprising, in the embodiment shown, three circular openings 17 opening onto the current distribution cells 12 and a ground pin 18 of cylindrical shape arranged perpendicular to the front face of said element 11.
  • the cassette 13 is also a molded plastic part having a circular bottom 19 surrounded by a flange, substantially perpendicular to this bottom.
  • the diameter of the circular bottom is approximately equal to the diameter of the element 11 for supporting the cells.
  • This bottom comprises four circular openings 20 respectively intended for the passage of the two current distribution pins of the plug 32, the ground pin 18 and a polarizing pin 33 which is associated with the plug 32.
  • the circular bottom 19 carries a cylindrical element 21 disposed coaxially with respect to a cylindrical base 22. This cylindrical element 21 allows the positioning of the shutter 14 and of the return spring 15 and the base 22 serves to support said shutter.
  • This shutter 14 has a substantially annular central portion 23, respectively provided with a circular opening 24, and carrying three arms 25, the ends of which are provided with studs 26 corresponding in position and in size to the openings 29 of the element 16.
  • the return spring 15 is of any type, for example of the torsion rod type or the like. In the example shown, it comprises several superimposed turns and two ends 15a and 15b, one of which is fixed or placed in abutment against a fixed element of the faceplate 16 and the other is linked to the shutter 14, preferably to the 'one of the arms 25 of the latter.
  • the front faceplate 16 has the form of a quadrangular box provided with an annular rim 27 disposed on its front face 28 which has four circular openings 29 corresponding in position to the four circular openings 20 at the bottom of the cassette 13.
  • the plug 32 of known type comprises a body 30 provided with two pins 31 intended for the supply of electric current and a cylindrical bore arranged to receive the earth pin 18 of the socket outlet socket 10. It is further equipped an accessory consisting of a plate 34 provided with three circular orifices 35 and the polarizing pin 33, and which is fixed against the front face of the plug.
  • the length of the pin 33 is substantially equal to the length of the pins 31.
  • the studs 26, which have a flat front surface inclined relative to the axis of the base, are opposite the circular openings 29 of the faceplate.
  • the spring 15 one end of which is made integral with the faceplate and the other end is hooked, for example, to an arm 25 of the shutter, arms and accumulates a sufficient return force to bring this shutter back in its initial position, when the plug 32 is removed from the socket base 10.
  • the central part 23 of the shutter has a significant play with the cylindrical element 21.
  • the shutter is more or less unstable in equilibrium on the base 22.
  • the stud 26 corresponding to the coding pin engages in the corresponding opening 29 of the faceplate, which prevents any rotation of the shutter.
  • the polarization pin is therefore mandatory in this configuration. Any improper plug cannot cause the shutter to open. In practice, this amounts to saying that the shutter is in equilibrium on a fictitious point located on its axis.
  • any attempt to engage a single metal element in an orifice 29, causes, by tilting the shutter 14, the engagement of the other two studs 26 in their respective openings 29, thereby blocking rotation.
  • This principle can be applied to equipment with a retractable three-phase plug shutter.

Abstract

The present invention relates to an electrical socket provided with a retractable shutter designed to close off the openings of the socket in the absence of a plug corresponding to this socket. This socket (10) includes an element (11) for supporting the current-distributing cavities (12), a cassette (13) serving for mounting the shutter (14) and containing a return spring (15), and a front shell (body) (16) mounted at the front of the socket. The shutter includes three pads (26) intended to shut off the openings (29) made in this shell in order to allow passage of the two power-supply pins (31) and of a pin (33) for polarising a plug (32). It is urged in the closure position by a closure spring (15). This shutter is balanced on the spring in such a way that it opens only if the pins (31, 33) of the plug are inserted simultaneously. <IMAGE>

Description

La présente invention concerne un socle de prise de courant comportant un élément de support pour des alvéoles de distribution de courant, un plastron frontal agencé pour recevoir une fiche munie de broches d'un équipement électrique, une cassette disposée entre ledit élément de support et ledit plastron frontal et contenant un obturateur escamotable conçu pour occuper une position de repos dans laquelle il obture des ouvertures ménagées dans le plastron frontal et prévues pour donner auxdites broches un accès auxdits alvéoles de distribution de courant, et une position retirée dans laquelle il libère lesdites ouvertures.The present invention relates to a socket outlet comprising a support element for current distribution cells, a front faceplate arranged to receive a plug provided with pins of electrical equipment, a cassette disposed between said support element and said front plate and containing a retractable shutter designed to occupy a rest position in which it closes openings made in the front plate and designed to give said pins access to said current distribution cells, and a withdrawn position in which it releases said openings .

La fonction de détrompage est définie en ce que l'ouverture dudit obturateur escamotable ne peut être réalisée que par une fiche de prise de courant comportant un accessoire supplémentaire autorisant son introduction dans ledit socle.The keying function is defined in that the opening of said retractable shutter can only be carried out by a socket outlet plug comprising an additional accessory authorizing its introduction into said base.

On connaît des prises de courant de ce type, notamment par la demande de brevet français publiée sous le N° 2 584.873 qui décrit un obturateur escamotable en forme de té obturant l'accès aux alvéoles du socle. La fiche dite détrompée est caractérisée par l'adjonction d'une troisième broche d'une longueur légèrement supérieure aux broches conductrices. Cette broche est destinée à coopérer avec un plan incliné situé sur la jambe de té de façon à engendrer la rotation de l'obturateur escamotable et ainsi dégager l'accès aux alvéoles pour les broches conductrices.There are known sockets of this type, in particular from the French patent application published under No. 2,584,873 which describes a retractable shutter in the shape of a tee blocking access to the cells of the base. The so-called polarized plug is characterized by the addition of a third pin of a length slightly greater than the conductive pins. This pin is intended to cooperate with an inclined plane located on the tee leg so as to generate the rotation of the retractable shutter and thus free access to the cells for the conductive pins.

Ce système réalise bien la fonction de détrompage recherchée, mais légèrement au détriment de la sécurité puisqu'une seule action permet d'ouvrir l'obturateur alors que ladite ouverture doit réclamer l'action simultanée de deux broches pour être conforme au niveau de sécurité normalement exigé.This system achieves the desired keying function well, but slightly to the detriment of safety since a single action makes it possible to open the shutter while said opening must require the simultaneous action of two pins to comply with the safety level normally required.

La présente invention se propose de pallier ces inconvénients en réalisant un socle de prise de courant tel que défini ci-dessus, qui garantit une obturation efficace des ouvertures d'accès aux alvéoles de contact, présentant une sécurité empêchant toute insertion accidentelle ou volontaire d'un élément pointu autre que les broches d'une prise appropriée dans lesdites ouvertures d'accès aux alvéoles et comportant en outre des moyens de détrompage.The present invention proposes to overcome these drawbacks by providing a socket outlet as defined above, which guarantees effective sealing of the access openings to the contact cells, having a security preventing any accidental or voluntary insertion of a pointed element other than the pins of an appropriate socket in said openings for access to the cells and further comprising polarizing means.

A cet effet, le socle de prise courant selon l'invention est caractérisé en ce que :

  • ledit obturateur comporte des plots agencés pour s'engager au moins partiellement dans lesdites ouvertures du plastron , lesdits plots étant au moins au nombre de trois et correspondant respectivement à au moins deux broches d'alimentation en courant de ladite fiche et à une broche de détrompage également montée sur cette fiche,
  • des moyens sont prévus sur ledit obturateur pour générer sa rotation autour de son axe, en réponse à une poussée axiale exercée simultanément par lesdites broches de la fiche sur lesdits plots,
  • une partie centrale de l'obturateur possède une forme de calotte sphérique pourvue d'une ouverture centrale, et au moins trois bras dont les extrémités portent chacun l'un desdits plots,
  • ledit obturateur étant en équilibre sur un point fictif localisé sur son axe.
To this end, the socket outlet according to the invention is characterized in that:
  • said shutter comprises studs arranged to engage at least partially in said openings of the faceplate, said studs being at least three in number and corresponding respectively to at least two power supply pins of said plug and a keying pin also mounted on this plug,
  • means are provided on said shutter to generate its rotation about its axis, in response to an axial thrust exerted simultaneously by said pins of the plug on said pads,
  • a central part of the shutter has a shape of a spherical cap provided with a central opening, and at least three arms, the ends of which each carry one of said studs,
  • said shutter being in equilibrium on a fictitious point located on its axis.

La présente invention et ses principaux avantages seront mieux compris en référence à la description d'une forme de réalisation préférée et aux dessins annexés donnés à titre d'exemple non limitatifs dans lesquels :

  • la figure 1 représente une vue éclatée d'une forme de réalisation préférée du socle de prise de courant selon l'invention,
  • la figure 2 représente une vue en coupe partielle du socle de la figure 1,
  • les figures 3A et 3B sont des vues en coupe axiale illustrant les phases successives d'embrochage d'une fiche dans le socle de prise de courant selon l'invention,
  • la figure 4 est une vue en perspective d'une fiche embrochée dans le socle de prise, et correspondant à la vue en coupe de la figure 3C,
  • la figure 5 est une vue en plan illustrant la position de l'obturateur à la fin de la phase d'embrochage d'une fiche dans le socle de prise.
The present invention and its main advantages will be better understood with reference to the description of a preferred embodiment and to the accompanying drawings given by way of non-limiting example in which:
  • FIG. 1 represents an exploded view of a preferred embodiment of the socket outlet according to the invention,
  • FIG. 2 represents a view in partial section of the base of FIG. 1,
  • FIGS. 3A and 3B are views in axial section illustrating the successive phases of plugging in a plug into the socket outlet according to the invention,
  • FIG. 4 is a perspective view of a plug plugged into the socket, and corresponding to the sectional view of FIG. 3C,
  • Figure 5 is a plan view illustrating the position of the shutter at the end of the plug-in phase of a plug in the socket.

En référence aux figures, et plus particulièrement à la figure 1, le socle de prise de courant 10 représenté se compose principalement d'un élément 11 de support des alvéoles de distribution de courant 12, d'une cassette 13 de montage, d'un obturateur 14, d'un ressort de rappel 15 et d'un plastron frontal 16 monté à l'avant du socle de prise de courant 10.With reference to the figures, and more particularly to FIG. 1, the socket outlet 10 shown mainly consists of an element 11 for supporting the current distribution cells 12, a cassette 13 for mounting, a shutter 14, a return spring 15 and a front faceplate 16 mounted at the front of the socket outlet 10.

Ce socle est destiné à recevoir une fiche 32 qui sera décrite plus en détail ci-dessous.This base is intended to receive a plug 32 which will be described in more detail below.

L'élément 11 de support des alvéoles 12 est une pièce en matière synthétique moulée, par exemple de section circulaire, comportant, dans la forme de réalisation représentée, trois ouvertures circulaires 17 débouchant sur les alvéoles de distribution de courant 12 et une broche de terre 18 de forme cylindrique disposée perpendiculairement à la face frontale dudit élément 11.The element 11 for supporting the cells 12 is a molded plastic part, for example of circular section, comprising, in the embodiment shown, three circular openings 17 opening onto the current distribution cells 12 and a ground pin 18 of cylindrical shape arranged perpendicular to the front face of said element 11.

La cassette 13 est également une pièce en matière synthétique moulée comportant un fond circulaire 19 entouré d'un rebord, sensiblement perpendiculaire à ce fond. Le diamètre du fond circulaire est approximativement égal au diamètre de l'élément 11 de support des alvéoles. Ce fond comporte quatre ouvertures circulaires 20 respectivement destinées au passage des deux broches de distribution de courant de la fiche 32, de la broche de terre 18 et d'une broche de détrompage 33 qui est associée à la fiche 32. En son centre, le fond circulaire 19 porte un élément cylindrique 21 disposé coaxialement par rapport à une embase cylindrique 22. Cet élément cylindrique 21 permet le positionnement de l'obturateur 14 et du ressort de rappel 15 et l'embase 22 sert d'appui audit obturateur.The cassette 13 is also a molded plastic part having a circular bottom 19 surrounded by a flange, substantially perpendicular to this bottom. The diameter of the circular bottom is approximately equal to the diameter of the element 11 for supporting the cells. This bottom comprises four circular openings 20 respectively intended for the passage of the two current distribution pins of the plug 32, the ground pin 18 and a polarizing pin 33 which is associated with the plug 32. In its center, the circular bottom 19 carries a cylindrical element 21 disposed coaxially with respect to a cylindrical base 22. This cylindrical element 21 allows the positioning of the shutter 14 and of the return spring 15 and the base 22 serves to support said shutter.

Cet obturateur 14 comporte une partie centrale 23 sensiblement annulaire, respectivement pourvue d'une ouverture circulaire 24, et portant trois bras 25 dont les extrémités sont pourvues de plots 26 correspondant en position et en dimensions aux ouvertures 29 de l'élément 16.This shutter 14 has a substantially annular central portion 23, respectively provided with a circular opening 24, and carrying three arms 25, the ends of which are provided with studs 26 corresponding in position and in size to the openings 29 of the element 16.

Le ressort de rappel 15 est de type quelconque, par exemple du type boudin à torsion ou similaire. Dans l'exemple représenté, il comporte plusieurs spires superposées et deux extrémités 15a et 15b dont l'une est fixée ou placée en butée contre un élément fixe du plastron 16 et l'autre est liée à l'obturateur 14, de préférence à l'un des bras 25 de ce dernier.The return spring 15 is of any type, for example of the torsion rod type or the like. In the example shown, it comprises several superimposed turns and two ends 15a and 15b, one of which is fixed or placed in abutment against a fixed element of the faceplate 16 and the other is linked to the shutter 14, preferably to the 'one of the arms 25 of the latter.

Le plastron frontal 16 a la forme d'un boîtier quadrangulaire pourvu d'un rebord annulaire 27 disposé sur sa face frontale 28 qui comporte quatre ouvertures circulaires 29 correspondant en position aux quatre ouvertures circulaires 20 du fond de la cassette 13.The front faceplate 16 has the form of a quadrangular box provided with an annular rim 27 disposed on its front face 28 which has four circular openings 29 corresponding in position to the four circular openings 20 at the bottom of the cassette 13.

La fiche 32 de type connu comporte un corps 30 pourvu de deux broches 31 destinées à l'alimentation en courant électrique et d'un alésage cylindrique agencé pour recevoir la broche de terre 18 du socle de prise de courant 10. Elle est en outre équipée d'un accessoire constitué d'une plaque 34 pourvue de trois orifices circulaires 35 et de la broche de détrompage 33, et qui est fixée contre la face frontale de la fiche. La longueur de la broche 33 est sensiblement égale à la longueur des broches 31.The plug 32 of known type comprises a body 30 provided with two pins 31 intended for the supply of electric current and a cylindrical bore arranged to receive the earth pin 18 of the socket outlet socket 10. It is further equipped an accessory consisting of a plate 34 provided with three circular orifices 35 and the polarizing pin 33, and which is fixed against the front face of the plug. The length of the pin 33 is substantially equal to the length of the pins 31.

Au repos les plots 26, qui présentent une surface frontale plane inclinée par rapport à l'axe du socle, sont en face des ouvertures circulaires 29 du plastron.At rest, the studs 26, which have a flat front surface inclined relative to the axis of the base, are opposite the circular openings 29 of the faceplate.

Dans une première phase correspondant au début de l'embrochage de la fiche 32 dans le socle de la prise de courant, les deux broches 31 d'alimentation en courant électrique et la broche de détrompage 33 prennent simultanément appui contre les plots 26 de l'obturateur. Cette phase est représentée par la figure 3A.In a first phase corresponding to the start of plugging in of the plug 32 in the socket of the power outlet, the two pins 31 for supplying electric current and the coding pin 33 bear simultaneously against the studs 26 of the shutter. This phase is shown in Figure 3A.

Dans la phase suivante de l'embrochage de la fiche 32, illustrée par les figures 3B, 4 et 5, la contrainte axiale exercée simultanément par les broches d'alimentation 31 et la broche de détrompage 33 sur les plots 26, a pour effet de provoquer une rotation de l'obturateur 14 autour de son axe, matérialisé par l'élément cylindrique 21. Ce mouvement de rotation est obtenu par exemple grâce à une géométrie particulière des plots 26 qui présentent à leur surface frontale un profil de rampe inclinée. La poussée exercée par les bouts arrondis des broches de la fiche sur ces rampes inclinées engendre un couple d'entraînement en rotation de l'obturateur. Au cours de cette rotation, le ressort 15, dont une extrémité est rendue solidaire du plastron et l'autre extrémité est accrochée par exemple à un bras 25 de l'obturateur, s'arme et accumule une force de rappel suffisante pour ramener cet obturateur dans sa position initiale, au moment du retrait de la fiche 32 hors du socle de la prise 10.In the next phase of plugging in the plug 32, illustrated by FIGS. 3B, 4 and 5, the axial stress exerted simultaneously by the supply pins 31 and the polarizing pin 33 on the pads 26, has the effect of cause a rotation of the shutter 14 about its axis, materialized by the cylindrical element 21. This rotational movement is obtained for example by virtue of a particular geometry of the studs 26 which have on their front surface an inclined ramp profile. The thrust exerted by the rounded ends of the pins of the plug on these inclined ramps generates a torque for driving the shutter in rotation. During this rotation, the spring 15, one end of which is made integral with the faceplate and the other end is hooked, for example, to an arm 25 of the shutter, arms and accumulates a sufficient return force to bring this shutter back in its initial position, when the plug 32 is removed from the socket base 10.

On notera que la partie centrale 23 de l'obturateur présente un jeu non négligeable avec l'élément cylindrique 21. De ce fait, l'obturateur est en équilibre plus ou moins instable sur l'embase 22. Il en résulte que, si un opérateur tente d'introduire dans le socle de la prise une fiche non appropriée, par exemple non munie de la broche de détrompage 33, l'obturateur 14 bascule par rapport à son axe, mais ne tourne pas. Au contraire, le plot 26 correspondant à la broche de détrompage s'engage dans l'ouverture 29 correspondante du plastron, ce qui empêche toute rotation de l'obturateur. La broche de détrompage est donc obligatoire dans cette configuration. Toute fiche non appropriée ne peut engendrer l'ouverture de l'obturateur. Dans la pratique, cela revient à dire que l'obturateur est en équilibre sur un point fictif localisé sur son axe.Note that the central part 23 of the shutter has a significant play with the cylindrical element 21. As a result, the shutter is more or less unstable in equilibrium on the base 22. As a result, if a operator tries to introduce into the socket base an inappropriate plug, for example not provided with the coding pin 33, the shutter 14 switches relative to its axis, but does not rotate. On the contrary, the stud 26 corresponding to the coding pin engages in the corresponding opening 29 of the faceplate, which prevents any rotation of the shutter. The polarization pin is therefore mandatory in this configuration. Any improper plug cannot cause the shutter to open. In practice, this amounts to saying that the shutter is in equilibrium on a fictitious point located on its axis.

De même, toute tentative d'engager un seul élément métallique dans un orifice 29, provoque, par basculement de l'obturateur 14, l'engagement des deux autres plots 26 dans leurs ouvertures 29 respectives, bloquant ainsi la rotation.Similarly, any attempt to engage a single metal element in an orifice 29, causes, by tilting the shutter 14, the engagement of the other two studs 26 in their respective openings 29, thereby blocking rotation.

Ce principe peut être appliqué à l'équipement avec obturateur escamotable de prises triphasées.This principle can be applied to equipment with a retractable three-phase plug shutter.

Claims (6)

Socle de prise de courant comportant un élément de support pour des alvéoles de distribution de courant, un plastron frontal agencé pour recevoir une fiche munie de broches d'un équipement électrique, une cassette disposée entre ledit élément de support et ledit plastron frontal et contenant un obturateur escamotable conçu pour occuper une position de repos dans laquelle il obture des ouvertures ménagées dans le plastron frontal et prévues pour donner auxdites broches un accès auxdits alvéoles de distribution de courant, et une position retirée dans laquelle il libère lesdites ouvertures,
caractérisé en ce que - ledit obturateur (14) comporte des plots (26) agencés pour s'engager au moins partiellement dans lesdites ouvertures (29) du plastron (16), lesdits plots étant au moins au nombre de trois et correspondant respectivement à au moins deux broches d'alimentation (31) en courant de ladite fiche et à une broche de détrompage (33) également montée sur cette fiche (32), - des moyens sont prévus sur ledit obturateur pour générer sa rotation autour de son axe, en réponse à une poussée axiale exercée simultanément par lesdites broches de la fiche sur lesdits plots, - une partie centrale (23) de l'obturateur possède une forme de calotte sphérique pourvue d'une ouverture centrale (24), et au moins trois bras (25) dont les extrémités portent chacun l'un desdits plots (26), - ledit obturateur (14) étant en équilibre sur un point fictif localisé sur son axe. Socket socket outlet comprising a support element for current distribution cells, a front plate arranged to receive a plug provided with pins of electrical equipment, a cassette disposed between said support element and said front plate and containing a retractable shutter designed to occupy a rest position in which it closes openings made in the front plate and designed to give said pins access to said current distribution cells, and a withdrawn position in which it releases said openings,
characterized in that - Said shutter (14) comprises studs (26) arranged to engage at least partially in said openings (29) of the faceplate (16), said studs being at least three in number and corresponding respectively to at least two pins d power supply (31) to said plug and to a polarizing pin (33) also mounted on this plug (32), means are provided on said shutter for generating its rotation about its axis, in response to an axial thrust exerted simultaneously by said pins of the plug on said pads, a central part (23) of the shutter has a shape of a spherical cap provided with a central opening (24), and at least three arms (25), the ends of which each carry one of said studs (26), - said shutter (14) being in equilibrium on a fictitious point located on its axis. Socle selon la revendication 1, caractérisé en ce que l'ouverture (24) de la partie centrale (23) de l'obturateur (14) a un diamètre supérieur au diamètre d'un élément cylindrique (21) solidaire de la cassette (13), sur lequel est monté ledit obturateur de manière à ménager un jeu entre cet élément cylindrique et ledit obturateur.Base according to claim 1, characterized in that the opening (24) of the central part (23) of the shutter (14) has a diameter greater than the diameter of a cylindrical element (21) integral with the cassette (13 ), on which said shutter is mounted so as to provide a clearance between this cylindrical element and said shutter. Socle selon la revendication 1, caractérisé en ce qu'il comporte un ressort de rappel (15) agencé pour ramener l'obturateur dans sa position initiale après le retrait de la fiche (32).Base according to claim 1, characterized in that it comprises a return spring (15) arranged to return the shutter to its initial position after the withdrawal of the plug (32). Socle selon la revendication 3, caractérisé en ce que ledit ressort (15) comporte plusieurs spires circulaires, une extrémité (15a) rendue solidaire du plastron (16) et une extrémité (15b) solidaire de l'obturateur (14).Base according to claim 3, characterized in that said spring (15) comprises several circular turns, one end (15a) made integral with the faceplate (16) and one end (15b) integral with the shutter (14). Socle selon la revendication 2, caractérisé en ce que la cassette (13) comporte une embase (22) coaxiale audit élément cylindrique (21), pour servir de point d'appui à la rotation et au basculement de l'obturateur 14.Base according to claim 2, characterized in that the cassette (13) has a base (22) coaxial with said cylindrical element (21), to serve as a fulcrum for rotation and tilting of the shutter 14. Socle selon la revendication 1, caractérisé en ce que lesdits moyens pour générer la rotation de l'obturateur (14) autour de son axe comprennent des rampes inclinées ménagées respectivement sur les surfaces frontales de chacun desdits plots (26).Base according to claim 1, characterized in that said means for generating the rotation of the shutter (14) about its axis include inclined ramps formed respectively on the front surfaces of each of said studs (26).
EP19940410103 1993-11-24 1994-11-18 Electrical socket with keying system Expired - Lifetime EP0654858B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9314275A FR2713023B1 (en) 1993-11-24 1993-11-24 Keyed socket outlet.
FR9314275 1993-11-24

Publications (2)

Publication Number Publication Date
EP0654858A1 true EP0654858A1 (en) 1995-05-24
EP0654858B1 EP0654858B1 (en) 1997-10-22

Family

ID=9453342

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19940410103 Expired - Lifetime EP0654858B1 (en) 1993-11-24 1994-11-18 Electrical socket with keying system

Country Status (4)

Country Link
EP (1) EP0654858B1 (en)
DE (1) DE69406394D1 (en)
ES (1) ES2110203T3 (en)
FR (1) FR2713023B1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0763875A1 (en) * 1995-09-15 1997-03-19 Schneider Electric Sa Electrical socket with keying system
FR2833111A1 (en) * 2001-12-05 2003-06-06 Legrand Sa SOCKET SOCKET WITH POCKET SHUTTER AND RANGE COMPRISING SUCH A SOCKET
EP2797174A4 (en) * 2011-12-22 2015-08-26 Sung Tae Ro Safe electrical outlet

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2584873A1 (en) * 1985-07-11 1987-01-16 Arnould App Electr Electrical connection system for a specific current-distribution network, and the corresponding adapter for the electrical connection plug and socket outlet
GB2209888A (en) * 1987-09-16 1989-05-24 Conblock Electrical Ltd An electrical socket with rotary shutter
GB2260863A (en) * 1991-10-23 1993-04-28 Mk Electric Ltd An electrical socket shutter

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2584873A1 (en) * 1985-07-11 1987-01-16 Arnould App Electr Electrical connection system for a specific current-distribution network, and the corresponding adapter for the electrical connection plug and socket outlet
GB2209888A (en) * 1987-09-16 1989-05-24 Conblock Electrical Ltd An electrical socket with rotary shutter
GB2260863A (en) * 1991-10-23 1993-04-28 Mk Electric Ltd An electrical socket shutter

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0763875A1 (en) * 1995-09-15 1997-03-19 Schneider Electric Sa Electrical socket with keying system
FR2738955A1 (en) * 1995-09-15 1997-03-21 Schneider Electric Sa ELECTRICAL SOCKET WITH DETROMPING
FR2833111A1 (en) * 2001-12-05 2003-06-06 Legrand Sa SOCKET SOCKET WITH POCKET SHUTTER AND RANGE COMPRISING SUCH A SOCKET
EP1318569A1 (en) * 2001-12-05 2003-06-11 Legrand Electrical socket with socket shutter and range comprising such a socket
EP2797174A4 (en) * 2011-12-22 2015-08-26 Sung Tae Ro Safe electrical outlet

Also Published As

Publication number Publication date
FR2713023B1 (en) 1995-12-22
FR2713023A1 (en) 1995-06-02
ES2110203T3 (en) 1998-02-01
DE69406394D1 (en) 1997-11-27
EP0654858B1 (en) 1997-10-22

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