EP0654857A1 - Electrical socket with rectractable shutter - Google Patents

Electrical socket with rectractable shutter Download PDF

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Publication number
EP0654857A1
EP0654857A1 EP94410102A EP94410102A EP0654857A1 EP 0654857 A1 EP0654857 A1 EP 0654857A1 EP 94410102 A EP94410102 A EP 94410102A EP 94410102 A EP94410102 A EP 94410102A EP 0654857 A1 EP0654857 A1 EP 0654857A1
Authority
EP
European Patent Office
Prior art keywords
shutter
base according
openings
cylindrical element
socket
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
EP94410102A
Other languages
German (de)
French (fr)
Other versions
EP0654857B1 (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.)
Filing date
Publication date
Application filed by Merlin Gerin SA, Schneider Electric SE filed Critical Merlin Gerin SA
Publication of EP0654857A1 publication Critical patent/EP0654857A1/en
Application granted granted Critical
Publication of EP0654857B1 publication Critical patent/EP0654857B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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 plate arranged to receive a plug of electrical equipment, a cylindrical element disposed between said support element and said front plate and supporting a retractable shutter designed to occupy a rest position in which it closes openings made in the front plate and designed to give access to said current distribution cells, and a withdrawn position in which it releases said openings.
  • the present invention proposes to provide a socket outlet which guarantees effective closure of the passage openings to the contact cells and which also has additional security due to the fact that said closure is maintained if all the pins are not simultaneously introduced into the corresponding openings.
  • these ramps comprise a first section substantially parallel to the axis of the cylindrical element to allow disengagement of the studs of the shutter partially engaged in the openings of the front faceplate and a second section inclined relative to this axis to generate a rotation of the shutter about said axis.
  • the socket outlet base 10 represented mainly consists of a support element 11 current distribution cells 12, a cassette 13 for mounting a shutter 14, a return spring 15 of the leaf type, which is arranged to ensure an axial stress on the shutter, and a front plate 16, mounted at the front of the socket outlet 10.
  • the element 11 for supporting the cells 12 is a piece of molded synthetic material, for example of circular section comprising, in the embodiment shown, two circular openings 17 opening into the current distribution cells 12, and a ground plug 18 of cylindrical shape arranged perpendicularly on the front face of said element 11.
  • the cassette 13 is also a molded plastic part comprising 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 has three circular openings 20 respectively intended for the passage of the two current distribution pins 33 of a plug 32 and of the ground pin 18.
  • the circular bottom 19 carries a cylindrical element 21 provided with at least one and preferably two guide ramps 22 that are helical or inclined with respect to to the axis of said stud.
  • ramps which can be in the form of protruding beads or in the form of hollow grooves, are arranged to cooperate with the shutter 14 to transform an axial thrust on the latter in a combined movement of axial translation and rotation around the axis of the cylindrical element 21.
  • the number of ramps is advantageously two, but this number could be reduced to one or increased to three or four.
  • the cassette 13 and cylindrical element 21 assembly is an exemplary embodiment which can advantageously be replaced by a cylindrical element 21 alone, as shown in FIG. 4, provided with its bearing shoulder 34 of the spring 15 and any means for fixing to the front plate 16.
  • the return spring 15 comprises two elastic arms 23 and an internal opening 24 which allows it to be placed on the cylindrical element 21.
  • the two elastic arms 23 are raised relative to the central part which has the interior opening, so as to bear at two points by their ends on the shutter 14.
  • the shutter 14 has a substantially annular central part 25 and two arms 26 which each carry at their end a stud 27 corresponding in position and in size to the current distribution cells 12 and to the openings 17 of the element 11.
  • the central part 25 has a circular opening 28 and two diametrically opposite notches 29.
  • the circular opening 28 makes it possible to adapt the shutter to the cylindrical element 21.
  • the two notches 29 are arranged to cooperate with the helical ramps 22 which have the form of protruding bulges. It is obvious that if the ramps are in the form of hollow grooves, the notches 29 are replaced by two lugs which penetrate into said grooves and guide them during movement of the shutter.
  • the front faceplate 16 has the form of a quadrangular box provided with an annular rim 30 disposed on its front face which has three circular openings 31 corresponding in position to the three circular openings 20 at the bottom of the cassette 13.
  • the shutter 14 is in positive support against the faceplate 16.
  • the studs 27, which have a flat or convex front surface, are engaged in the circular openings 31 by virtue of an axial stress exerted by the leaf spring 15.
  • the axial stress exerted by the pins of the plug on the studs 27 of the shutter causes displacement helical shutter, that is to say a combination of a movement in axial translation and a rotation about the axis. This movement allows the shutter to be retracted and the openings giving access to the current distribution cells to be released.
  • FIGS. 3A, 3B, 3C, 3D and 3E The different phases of this plug-in and the movements of the shutter resulting from this plug-in are illustrated in FIGS. 3A, 3B, 3C, 3D and 3E.
  • FIG. 3A shows the plug 32 in the approach phase of the front faceplate 16. The shutter 14 is in place and the circular openings 31 are closed by the studs.
  • FIG. 3B shows the plug 32 in a position in which the ends of its pins 33 are in contact with the studs 27.
  • the arms 23 of the spring 15 bear against the shutter 14 and exert a constraint which keeps the studs in the openings of the faceplate.
  • FIG. 3C shows the plug 32 in an intermediate position in which the thrust exerted by the pins 33 is greater than the force exerted by the spring 15 on the shutter 14.
  • the studs 27 begin to emerge from the openings of the faceplate.
  • Figure 3D shows the plug 32 fully engaged in the socket 10. The studs are retracted. The position
  • this assembly constitutes a kind of rocker which prevents the introduction of a single rod in the direction of a single cell if a thrust identical to that exerted by this rod on one of the pads 27 is not exerted simultaneously on the other pad.
  • the tilting caused in the case of the introduction of a single rod causes the other stud to penetrate into the corresponding opening 31 of the faceplate and blocks the shutter in the rest position, thus preventing access to the cells. Therefore, the leaf spring constitutes a safety device preventing any access to the cells by means of an element other than the pins of a socket outlet.
  • FIG. 4 represents a perspective view of the cylindrical element 21 and in particular of the guide ramps 22.
  • the ramps comprise a first section 22a parallel to the axis of the base and a second section 22b inclined relative to to this axis.
  • the first section makes it possible to release the studs 27 from the openings 31 during the insertion of the pins of a plug and the second section generates the rotational movement necessary to laterally move these studs from the path followed by these pins.
  • FIG. 5 shows another embodiment of a socket outlet, which differs from that described above in that it is designed for a three-prong plug.
  • This base 10a is composed as before of an element 11a for supporting the cells of current distribution 12a, a cassette 13a for mounting a shutter 14a, a return spring 15a and a faceplate 16a.
  • the support 11a is provided with three circular openings 17a and a ground plug 18a.
  • the cassette is provided with four circular openings 20a.
  • the shutter is equipped with three arms 26a which each carry a stud 27a corresponding to an opening 31a of the faceplate 16a.
  • the return spring 15a has three arms 23a which bear on the three arms 26a of the shutter 14a.
  • the base is intended either for a keyed socket, one of the three openings being reserved for a keying plug, the other two for current distribution, or for a three-phase socket.
  • an O-ring 40 is interposed between the faceplate 16 or 16a and the shutter 14 or 14a to ensure a sealed closure of the openings 31, by means of the studs 27 of the shutter 14 or 14a , taking advantage of the spring bearing force 15 or 15a.

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  • Connector Housings Or Holding Contact Members (AREA)

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 two pads (27) intended to shut off the openings (31) made in this shell in order to allow the pins (33) of a plug (32) to pass through. It is urged in the closure position by a return spring of the leaf-spring type. This shutter is balanced on the spring in such a way that it opens only if the pins (33) 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 d'un équipement électrique, un élément cylindrique disposé entre ledit élément de support et ledit plastron frontal et supportant 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 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 plate arranged to receive a plug of electrical equipment, a cylindrical element disposed between said support element and said front plate and supporting a retractable shutter designed to occupy a rest position in which it closes openings made in the front plate and designed to give access to said current distribution cells, and a withdrawn position in which it releases said openings.

La présente invention se propose de réaliser un socle de prise de courant qui garantit une obturation efficace des ouvertures de passage vers les alvéoles de contact et qui présente en outre une sécurité supplémentaire due au fait que ladite obturation est maintenue si toutes les broches ne sont pas introduites simultanément dans les ouvertures correspondantes.The present invention proposes to provide a socket outlet which guarantees effective closure of the passage openings to the contact cells and which also has additional security due to the fact that said closure is maintained if all the pins are not simultaneously introduced into the corresponding openings.

Ces buts sont atteints par le socle de prise de courant selon l'invention, caractérisé en ce que :

  • le socle comporte un ressort indépendant, monté sur ledit élément cylindrique pour solliciter l'obturateur en appui contre la face arrière du plastron,
  • une rampe de guidage est agencée sur ledit élément cylindrique pour coopérer avec une ouverture circulaire de l'obturateur, ladite rampe étant conformée pour générer un mouvement combiné de translation axiale et de rotation de l'oburateur autour de l'axe dudit élément cylindrique.
These aims are achieved by the socket outlet according to the invention, characterized in that:
  • the base comprises an independent spring, mounted on said cylindrical element to urge the shutter in abutment against the rear face of the faceplate,
  • a guide ramp is arranged on said cylindrical element to cooperate with a circular opening of the shutter, said ramp being shaped to generate a combined movement of axial translation and rotation of the shutter about the axis of said cylindrical element.

Selon un premier mode de réalisation, ces rampes comportent un premier tronçon sensiblement parallèle à l'axe de l'élément cylindrique pour permettre un dégagement des plots de l'obturateur partiellement engagés dans les ouvertures du plastron frontal et un deuxième tronçon incliné par rapport à cet axe pour générer une rotation de l'obturateur autour dudit axe.According to a first embodiment, these ramps comprise a first section substantially parallel to the axis of the cylindrical element to allow disengagement of the studs of the shutter partially engaged in the openings of the front faceplate and a second section inclined relative to this axis to generate a rotation of the shutter about said 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 en perspective éclatée d'une première forme de réalisation du socle de prise de courant selon l'invention,
  • la figure 2 représente une vue en perspective partiellement coupée du socle de la figure 1,
  • les figures 3A, 3B, 3C, 3D et 3E illustrent les phases d'embrochage d'une fiche dans le socle de prise de courant selon les figures 1 et 2,
  • la figure 4 représente une vue en perspective de l'élément cylindrique de la cassette de la prise de courant selon les figures précédentes,
  • la figure 5 est une vue similaire à celle de la figure 1 représentant une autre forme de réalisation d'un socle de prise de courant selon l'invention, et
  • la figure 6 représente une vue partielle illustrant une variante dans laquelle l'obturateur est pourvu d'un joint d'étanchéité.
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 perspective view of a first embodiment of the socket outlet socket according to the invention,
  • FIG. 2 represents a partially cut perspective view of the base of FIG. 1,
  • FIGS. 3A, 3B, 3C, 3D and 3E illustrate the phases of plugging in a plug into the socket outlet according to FIGS. 1 and 2,
  • FIG. 4 represents a perspective view of the cylindrical element of the socket outlet cassette according to the preceding figures,
  • FIG. 5 is a view similar to that of FIG. 1 showing another embodiment of a socket outlet according to the invention, and
  • Figure 6 shows a partial view illustrating a variant in which the shutter is provided with a seal.

En référence aux figures, et en particulier à la figure 1 qui montre le socle en perspective éclatée et à la figure 2 qui le représente assemblé mais partiellement coupé, 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 du type à lame, qui est agencé pour assurer une contrainte axiale sur l'obturateur, et d'un plastron frontal 16, monté à l'avant du socle de prise de courant 10.With reference to the figures, and in particular to FIG. 1 which shows the base in exploded perspective and in FIG. 2 which shows it assembled but partially cut, the socket outlet base 10 represented mainly consists of a support element 11 current distribution cells 12, a cassette 13 for mounting a shutter 14, a return spring 15 of the leaf type, which is arranged to ensure an axial stress on the shutter, and a front plate 16, mounted at the front of the socket outlet 10.

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, deux ouvertures circulaires 17 débouchant dans les alvéoles de distribution de courant 12, et une fiche de terre 18 de forme cylindrique disposée perpendiculairement sur la façe frontale dudit élément 11.The element 11 for supporting the cells 12 is a piece of molded synthetic material, for example of circular section comprising, in the embodiment shown, two circular openings 17 opening into the current distribution cells 12, and a ground plug 18 of cylindrical shape arranged perpendicularly on 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 trois ouvertures circulaires 20 respectivement destinées au passage des deux broches de distribution 33 de courant d'une fiche 32 et de la broche de terre 18. En son centre, le fond circulaire 19 porte un élément cylindrique 21 pourvu d'au moins une et de préférence deux rampes de guidage 22 hélicoïdales ou inclinées par rapport à l'axe dudit plot. Ces rampes, qui peuvent se présenter sous la forme de bourrelets protubérants ou sous celle de gorges creuses, sont agencées pour coopérer avec l'obturateur 14 pour transformer une poussée axiale sur ce dernier en un mouvement combiné de translation axiale et de rotation autour de l'axe de l'élément cylindrique 21. Le nombre de rampes est avantageusement de deux, mais ce nombre pourrait être réduit à un ou augmenté à trois ou quatre.The cassette 13 is also a molded plastic part comprising 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 has three circular openings 20 respectively intended for the passage of the two current distribution pins 33 of a plug 32 and of the ground pin 18. In its center, the circular bottom 19 carries a cylindrical element 21 provided with at least one and preferably two guide ramps 22 that are helical or inclined with respect to to the axis of said stud. These ramps, which can be in the form of protruding beads or in the form of hollow grooves, are arranged to cooperate with the shutter 14 to transform an axial thrust on the latter in a combined movement of axial translation and rotation around the axis of the cylindrical element 21. The number of ramps is advantageously two, but this number could be reduced to one or increased to three or four.

L'ensemble cassette 13 et élément cylindrique 21 est un exemple de réalisation qui peut être avantageusement remplacé par un élément cylindrique 21 seul, tel que représenté en figure 4, muni de son épaulement d'appui 34 du ressort 15 et d'un quelconque moyen de fixation au plastron frontal 16.The cassette 13 and cylindrical element 21 assembly is an exemplary embodiment which can advantageously be replaced by a cylindrical element 21 alone, as shown in FIG. 4, provided with its bearing shoulder 34 of the spring 15 and any means for fixing to the front plate 16.

Le ressort de rappel 15 comporte deux bras élastiques 23 et une ouverture intérieure 24 qui autorise sa mise en place sur l'élément cylindrique 21.The return spring 15 comprises two elastic arms 23 and an internal opening 24 which allows it to be placed on the cylindrical element 21.

Les deux bras élastiques 23 sont relevés par rapport à la partie centrale qui comporte l'ouverture intérieure, de manière à prendre appui en deux points par leur extrémité sur l'obturateur 14.The two elastic arms 23 are raised relative to the central part which has the interior opening, so as to bear at two points by their ends on the shutter 14.

L'obturateur 14 comporte une partie centrale 25 sensiblement annulaire et deux bras 26 qui portent chacun à leur extrémité un plot 27 correspondant en position et en dimension aux alvéoles de distribution de courant 12 et aux ouvertures 17 de l'élément 11. La partie centrale 25 comporte une ouverture circulaire 28 et deux encoches 29 diamétralement opposées. L'ouverture circulaire 28 permet d'adapter l'obturateur sur l'élément cylindrique 21. Les deux encoches 29 sont agencées pour coopérer avec les rampes hélicoïdales 22 qui ont la forme de bourrelets protubérants. Il est évident que si les rampes se présentent sous la forme de gorges creuses, les encoches 29 sont remplacées par deux ergots qui pénètrent dans lesdites gorges et assurent leur guidage lors d'un déplacement de l'obturateur.The shutter 14 has a substantially annular central part 25 and two arms 26 which each carry at their end a stud 27 corresponding in position and in size to the current distribution cells 12 and to the openings 17 of the element 11. The central part 25 has a circular opening 28 and two diametrically opposite notches 29. The circular opening 28 makes it possible to adapt the shutter to the cylindrical element 21. The two notches 29 are arranged to cooperate with the helical ramps 22 which have the form of protruding bulges. It is obvious that if the ramps are in the form of hollow grooves, the notches 29 are replaced by two lugs which penetrate into said grooves and guide them during movement of the shutter.

Le plastron frontal 16 a la forme d'un boîtier quadrangulaire pourvu d'un rebord annulaire 30 disposé sur sa face frontale qui comporte trois ouvertures circulaires 31 correspondant en position aux trois 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 30 disposed on its front face which has three circular openings 31 corresponding in position to the three circular openings 20 at the bottom of the cassette 13.

Au repos, l'obturateur 14 est en appui positif contre le plastron 16. Les plots 27, qui présentent une surface frontale plane ou convexe, sont engagés dans les ouvertures circulaires 31 grâce à une contrainte axiale exercée par le ressort à lame 15. Lors de l'embrochage de la fiche 32 dans le socle de la prise de courant, la contrainte axiale exercée par les broches de la fiche sur les plots 27 de l'obturateur entraîne un déplacement hélicoïdal de l'obturateur, c'est-à-dire une combinaison d'un mouvement en translation axiale et d'une rotation autour de l'axe. Ce déplacement permet d'escamoter l'obturateur et de dégager les ouvertures donnant accès aux alvéoles de distribution du courant.At rest, the shutter 14 is in positive support against the faceplate 16. The studs 27, which have a flat or convex front surface, are engaged in the circular openings 31 by virtue of an axial stress exerted by the leaf spring 15. During plugging the plug 32 into the socket of the socket, the axial stress exerted by the pins of the plug on the studs 27 of the shutter causes displacement helical shutter, that is to say a combination of a movement in axial translation and a rotation about the axis. This movement allows the shutter to be retracted and the openings giving access to the current distribution cells to be released.

Les différentes phases de cet embrochage et les mouvements de l'obturateur résultant de cet embrochage sont illustrés par les figures 3A, 3B, 3C, 3D et 3E. La figure 3A montre la fiche 32 en phase d'approche du plastron frontal 16. L'obturateur 14 est en place et les ouvertures circulaires 31 sont fermées par les plots 27. La figure 3B montre la fiche 32 dans une position dans laquelle les extrémités de ses broches 33 sont en contact avec les plots 27. Les bras 23 du ressort 15 sont en appui contre l'obturateur 14 et exercent une contrainte qui maintient les plots dans les ouvertures du plastron. La figure 3C montre la fiche 32 dans une position intermédiaire dans laquelle la poussée exercée par les broches 33 est supérieure à la force exercée par le ressort 15 sur l'obturateur 14. Les plots 27 commencent à se dégager des ouvertures du plastron. La figure 3D montre la fiche 32 complètement engagée dans la prise 10. Les plots se sont escamotés. La position de l'obturateur 14, et plus particulièrement de ses plots 27, est représentée par la figure 3E.The different phases of this plug-in and the movements of the shutter resulting from this plug-in are illustrated in FIGS. 3A, 3B, 3C, 3D and 3E. FIG. 3A shows the plug 32 in the approach phase of the front faceplate 16. The shutter 14 is in place and the circular openings 31 are closed by the studs. FIG. 3B shows the plug 32 in a position in which the ends of its pins 33 are in contact with the studs 27. The arms 23 of the spring 15 bear against the shutter 14 and exert a constraint which keeps the studs in the openings of the faceplate. FIG. 3C shows the plug 32 in an intermediate position in which the thrust exerted by the pins 33 is greater than the force exerted by the spring 15 on the shutter 14. The studs 27 begin to emerge from the openings of the faceplate. Figure 3D shows the plug 32 fully engaged in the socket 10. The studs are retracted. The position of the shutter 14, and more particularly of its studs 27, is shown in FIG. 3E.

En raison de la géométrie du ressort, et en particulier grâce au fait que les bras 23 sont relevés par rapport à la partie centrale, cet ensemble constitue une sorte de bascule qui empêche l'introduction d'une tige unique en direction d'un seul alvéole si une poussée identique à celle exercée par cette tige sur un des plots 27 n'est pas exercée simultanément sur l'autre plot. Le basculement provoqué dans le cas de l'introduction d'une tige unique fait pénétrer l'autre plot dans l'ouverture correspondante 31 du plastron et bloque l'obturateur en position de repos, empêchant ainsi l'accès aux alvéoles. De ce fait, le ressort à lame constitue un dispositif de sécurité interdisant tout accès aux alvéoles au moyen d'un élément autre que les broches d'une fiche de prise de courant.Due to the geometry of the spring, and in particular thanks to the fact that the arms 23 are raised relative to the central part, this assembly constitutes a kind of rocker which prevents the introduction of a single rod in the direction of a single cell if a thrust identical to that exerted by this rod on one of the pads 27 is not exerted simultaneously on the other pad. The tilting caused in the case of the introduction of a single rod causes the other stud to penetrate into the corresponding opening 31 of the faceplate and blocks the shutter in the rest position, thus preventing access to the cells. Therefore, the leaf spring constitutes a safety device preventing any access to the cells by means of an element other than the pins of a socket outlet.

La figure 4 représente une vue en perspective de l'élément cylindrique 21 et en particulier des rampes de guidage 22. Dans la réalisation représentée, les rampes comportent un premier tronçon 22a parallèle à l'axe du socle et un deuxième tronçon 22b incliné par rapport à cet axe. Le premier tronçon permet de dégager les plots 27 des ouvertures 31 lors de l'introduction des broches d'une fiche et le deuxième tronçon génère le mouvement de rotation nécessaire pour déplacer latéralement ces plots de la trajectoire suivie par ces broches.FIG. 4 represents a perspective view of the cylindrical element 21 and in particular of the guide ramps 22. In the embodiment shown, the ramps comprise a first section 22a parallel to the axis of the base and a second section 22b inclined relative to to this axis. The first section makes it possible to release the studs 27 from the openings 31 during the insertion of the pins of a plug and the second section generates the rotational movement necessary to laterally move these studs from the path followed by these pins.

La figure 5 représente une autre forme de réalisation d'un socle de prise de courant, qui diffère de celle décrite ci-dessus en ce qu'elle est conçue pour une fiche à trois broches. Ce socle 10a se compose comme précédemment d'un élément 11a de support des alvéoles de distribution de courant 12a, d'une cassette 13a de montage d'un obturateur 14a, d'un ressort de rappel 15a et d'un plastron 16a. Le support 11a est pourvu de trois ouvertures circulaires 17a et d'une fiche de terre 18a. La cassette est pourvue de quatre ouvertures circulaires 20a. L'obturateur est équipé de trois bras 26a qui portent chacun un plot 27a correspondant à une ouverture 31a du plastron 16a. Le ressort de rappel 15a a trois bras 23a qui prennent appui sur les trois bras 26a de l'obturateur 14a.Figure 5 shows another embodiment of a socket outlet, which differs from that described above in that it is designed for a three-prong plug. This base 10a is composed as before of an element 11a for supporting the cells of current distribution 12a, a cassette 13a for mounting a shutter 14a, a return spring 15a and a faceplate 16a. The support 11a is provided with three circular openings 17a and a ground plug 18a. The cassette is provided with four circular openings 20a. The shutter is equipped with three arms 26a which each carry a stud 27a corresponding to an opening 31a of the faceplate 16a. The return spring 15a has three arms 23a which bear on the three arms 26a of the shutter 14a.

Dans cette réalisation, le socle est destiné soit à une prise à détrompage, l'une des trois ouvertures étant réservée à une fiche de détrompage, les deux autres à la distribution du courant, soit à une prise triphasée.In this embodiment, the base is intended either for a keyed socket, one of the three openings being reserved for a keying plug, the other two for current distribution, or for a three-phase socket.

Selon une variante avantageuse représentée par la figure 6, un joint torique 40 est interposé entre le plastron 16 ou 16a et l'obturateur 14 ou 14a pour assurer une fermeture étanche des ouvertures 31, au moyen des plots 27 de l'obturateur 14 ou 14a, profitant de la force d'appui de ressort 15 ou 15a.According to an advantageous variant shown in Figure 6, an O-ring 40 is interposed between the faceplate 16 or 16a and the shutter 14 or 14a to ensure a sealed closure of the openings 31, by means of the studs 27 of the shutter 14 or 14a , taking advantage of the spring bearing force 15 or 15a.

Claims (8)

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 d'un équipement électrique, un élément cylindrique disposé entre ledit élément de support et ledit plastron frontal et supportant 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 accès auxdits alvéoles de distribution de courant, et une position retirée dans laquelle il libère lesdites ouvertures,
caractérisé en ce que - le socle (10, 10a) comporte un ressort (15, 15a) indépendant, monté sur ledit élément cylindrique (21, 21a) pour solliciter l'obturateur (14, 14a) en appui contre la face arrière du plastron (16, 16a), - une rampe de guidage (22) est agencée sur ledit élément cylindrique pour coopérer avec une ouverture (28) circulaire de l'obturateur, ladite rampe étant conformée pour générer un mouvement combiné de translation axiale et de rotation de l'oburateur autour de l'axe dudit élément cylindrique. Socket socket outlet comprising a support element for current distribution cells, a front plate arranged to receive a plug of electrical equipment, a cylindrical element disposed between said support element and said front plate and supporting a retractable shutter designed to occupy a rest position in which it closes openings made in the front plate and designed to give access to said current distribution cells, and a withdrawn position in which it releases said openings,
characterized in that - The base (10, 10a) comprises an independent spring (15, 15a), mounted on said cylindrical element (21, 21a) to urge the shutter (14, 14a) to bear against the rear face of the faceplate (16, 16a ), - A guide ramp (22) is arranged on said cylindrical element to cooperate with a circular opening (28) of the shutter, said ramp being shaped to generate a combined movement of axial translation and rotation of the shutter around the axis of said cylindrical element. Socle selon la revendication 1, caractérisé en ce que lesdites rampes de guidage (22) ont un premier tronçon (22a, 22c) sensiblement parallèle à l'axe de l'élément cylindrique (21) et un deuxième tronçon (22b, 22d) incliné par rapport à cet axe.Base according to claim 1, characterized in that said guide ramps (22) have a first section (22a, 22c) substantially parallel to the axis of the cylindrical element (21) and a second inclined section (22b, 22d) with respect to this axis. Socle selon la revendication 1, caractérisé en ce que lesdites rampes de guidage (22) ont au moins partiellement un profil sensiblement hélicoïdal.Base according to claim 1, characterized in that said guide ramps (22) at least partially have a substantially helical profile. Socle selon la revendication 1, caractérisé en ce que le ressort (15, 15a) est du type à lame et comporte une partie centrale annulaire et au moins deux bras (23; 23a) relevés par rapport à cette partie annulaire.Base according to claim 1, characterized in that the spring (15, 15a) is of the leaf type and comprises an annular central part and at least two arms (23; 23a) raised relative to this annular part. Socle selon la revendication 4, caractérisé en ce que le ressort (15, 15a) est agencé pour exercer une force d'appui sur l'obturateur (14, 14a) dans la position de repos.Base according to claim 4, characterized in that the spring (15, 15a) is arranged to exert a pressing force on the shutter (14, 14a) in the rest position. Socle selon la revendication 1, caractérisé en ce que l'obturateur (14, 14a) comporte au moins deux bras (26, 26a) munis de plots (27, 27a) disposés à l'extrémité de ces bras, ces plots étant agencés pour s'engager au moins partiellement dans lesdites ouvertures (31, 31a) du plastron.Base according to claim 1, characterized in that the shutter (14, 14a) comprises at least two arms (26, 26a) provided with studs (27, 27a) arranged at the end of these arms, these studs being arranged for at least partially engage in said openings (31, 31a) breastplate. Socle selon la revendication 6, caractérisé en ce que lesdits plots (27, 27a) ont une surface plane ou convexe.Base according to claim 6, characterized in that said studs (27, 27a) have a flat or convex surface. Socle selon la revendication 6, caractérisé en ce qu'il comporte un joint d'étanchéité (40) interposé entre le plastron (16, 16a) et l'obturateur (14, 14a).Base according to claim 6, characterized in that it comprises a seal (40) interposed between the faceplate (16, 16a) and the shutter (14, 14a).
EP19940410102 1993-11-24 1994-11-18 Electrical socket with rectractable shutter Expired - Lifetime EP0654857B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9314274A FR2713022B1 (en) 1993-11-24 1993-11-24 Power socket with retractable shutter.
FR9314274 1993-11-24

Publications (2)

Publication Number Publication Date
EP0654857A1 true EP0654857A1 (en) 1995-05-24
EP0654857B1 EP0654857B1 (en) 1998-02-04

Family

ID=9453341

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19940410102 Expired - Lifetime EP0654857B1 (en) 1993-11-24 1994-11-18 Electrical socket with rectractable shutter

Country Status (4)

Country Link
EP (1) EP0654857B1 (en)
DE (1) DE69408411D1 (en)
ES (1) ES2115182T3 (en)
FR (1) FR2713022B1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2501454A (en) * 2011-09-09 2013-10-30 Ifpl Group Ltd Electrical socket requiring all pins of a plug to be inserted, or which detects a plug pin using radiation
EP3352308A1 (en) * 2017-01-23 2018-07-25 Berker GmbH & Co. KG Front cover device for power socket and power socket equipped with such a front cover device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB628692A (en) * 1947-09-10 1949-09-02 Dorman & Smith Ltd Improvements in and relating to a shutter device for electric socket apparatus
FR2271680A1 (en) * 1974-05-14 1975-12-12 Couqueberg Michel Plug and socket with safety shutter - has guide slot in plug earth pin rotating shutter to align pin access holes
GB2209888A (en) * 1987-09-16 1989-05-24 Conblock Electrical Ltd An electrical socket with rotary shutter

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB628692A (en) * 1947-09-10 1949-09-02 Dorman & Smith Ltd Improvements in and relating to a shutter device for electric socket apparatus
FR2271680A1 (en) * 1974-05-14 1975-12-12 Couqueberg Michel Plug and socket with safety shutter - has guide slot in plug earth pin rotating shutter to align pin access holes
GB2209888A (en) * 1987-09-16 1989-05-24 Conblock Electrical Ltd An electrical socket with rotary shutter

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2501454A (en) * 2011-09-09 2013-10-30 Ifpl Group Ltd Electrical socket requiring all pins of a plug to be inserted, or which detects a plug pin using radiation
GB2501454B (en) * 2011-09-09 2016-06-15 Ifpl Group Ltd Electrical socket
US9570834B2 (en) 2011-09-09 2017-02-14 Wunelli Limited Electrical socket with shutter and retainer arrangement
EP3352308A1 (en) * 2017-01-23 2018-07-25 Berker GmbH & Co. KG Front cover device for power socket and power socket equipped with such a front cover device
WO2018134282A1 (en) * 2017-01-23 2018-07-26 Berker Gmbh & Co. Kg Front cover device for power socket and power socket equipped with such a front cover device

Also Published As

Publication number Publication date
EP0654857B1 (en) 1998-02-04
ES2115182T3 (en) 1998-06-16
DE69408411D1 (en) 1998-03-12
FR2713022A1 (en) 1995-06-02
FR2713022B1 (en) 1995-12-22

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