EP0528735B1 - Selective device for electrical connection provided with a security disc and a complementary disc - Google Patents

Selective device for electrical connection provided with a security disc and a complementary disc Download PDF

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Publication number
EP0528735B1
EP0528735B1 EP92402311A EP92402311A EP0528735B1 EP 0528735 B1 EP0528735 B1 EP 0528735B1 EP 92402311 A EP92402311 A EP 92402311A EP 92402311 A EP92402311 A EP 92402311A EP 0528735 B1 EP0528735 B1 EP 0528735B1
Authority
EP
European Patent Office
Prior art keywords
disc
base
complementary
safety
contacts
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
EP92402311A
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German (de)
French (fr)
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EP0528735A1 (en
Inventor
Gilles Marechal
Didier Bienvenu
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.)
Societe dExploitation des Procedes Marechal SEPM SA
Original Assignee
Societe dExploitation des Procedes Marechal SEPM SA
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Publication of EP0528735A1 publication Critical patent/EP0528735A1/en
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Publication of EP0528735B1 publication Critical patent/EP0528735B1/en
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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
    • 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
    • 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
    • H01R13/64—Means for preventing incorrect coupling
    • H01R13/645—Means for preventing incorrect coupling by exchangeable elements on case or base

Definitions

  • the invention relates to electrical connection devices of the type comprising a multi-contact plug intended to engage with the corresponding contacts of a base.
  • the invention relates mainly but not exclusively to the case of a base with four contacts or poles distributed over a circumference and, possibly, an earth contact placed in the center.
  • Each of the two elements, plug and base is constituted by a casing and an insulating contact support mounted in an adjustable manner in relative orientation with respect to said casing while the casings of the two elements carry combined means of guidance and locking by rotation arranged so that the junction of these elements can only be carried out in a single relative angular position.
  • the differentiation of the bases supplied in different ways for example: three-phase 500 volts, three-phase 380 volts, single-phase 110 volts, single-phase 24 volts, etc.
  • the corresponding plugs is carried out by assigning to each nominal current a determined relative angular position of the contact support in its housing.
  • a determined relative angular position of the contact support in its housing When the number of these different relative positions is sufficient (of the order of twenty), that is to say at least equal to the number of industrial currents normally used, it is possible to fix once and for all the position corresponding to a determined current and thereby establish a normalization system valid for the whole of industry.
  • a safety disc of insulating material is pivotally mounted on the base so as to be able to be driven in rotation by the plug, coaxially with the circumference of the contacts, when said plug is locked on said base.
  • This safety disc is provided with openings intended to be crossed by the contacts of the plug, distributed over a circumference superimposed on that of the contacts and arranged in such a way that at the end of the locking rotation only certain contact locations are discovered. , means being provided so that this safety disk is locked, during the disjunction of the plug and the base, in an initial position in which all the contacts are hidden.
  • the safety disc is locked in the initial chosen position by engaging at least one spout carried by a safety washer surrounding the contact support with one of a plurality of notches distributed around the periphery of the disc, the washer being urged towards the disc by an elastic means and immobilized in rotation by guide means.
  • the washer is pushed back by the plug when the latter is inserted on the base, which enables the safety disc to be unlocked.
  • the notch which corresponds to the correct initial position according to the desired nominal current can advantageously be uncorked only during the initial assembly.
  • Such an embodiment has certain drawbacks which arise from the fact that the safety disk has a double function: to hide all the contact locations in the initial position, and to discover predetermined contact locations in the final connection position.
  • the complementary disc is intended to mask all of the contact locations in the initial position while the safety disc retains its function of selecting the contact locations to be discovered in the final position.
  • the complementary disc comprises in this known system two diametrically opposite notches and the safety disc a plurality of cavities distributed around its periphery.
  • the initial position of the two discs is ensured by two projecting spouts on a safety washer, which has already been discussed above in connection with the single disc embodiment, said spouts being intended to engage both through the notches of the complementary disc and into two of the cavities of the safety disc.
  • the invention provides a device of the type mentioned above, inter alia provided with a safety disc, an additional disc and a position locking system.
  • initial disc which disappears when the plug is inserted into the base, this device being particularly remarkable in that the locking system acts only on the complementary disc while blocking means are provided between the complementary disc and the safety disc so that the latter can be locked in several predetermined angular positions relative to the complementary disc in such a way that an initial position can be assigned to the safety disc at will by acting on said locking means.
  • At least part of the blocking means is visible on the upper face of the safety disk so that this visible part, as a function of its position on the disk, makes it possible to know the nature of the current assigned to the device, since said current depends on the initial position of the safety disk.
  • the locking means comprise a lug mounted in a fixed angular position in the complementary disc, and urged by elastic means towards the safety disc to come to cooperate with lights made on the latter, so as to be able to block the two discs between them according to several identifiable relative angular positions, while said lug can be erased at will by acting on it against its elastic means, in order to modify the initial relative position of the safety disc relative to the complementary disc and therefore relative to the base.
  • the contact support of the base comprises a housing intended to receive a part of said lug when the latter is erased from the light of the safety disc in which it is located, when it is desired to modify the position relative discs.
  • the lug is entirely arranged in the complementary disc in which it can retract.
  • the lug is disposed at the end of a lever forming a spring.
  • the safety disc has for example the form of a cover provided with a peripheral rim turned towards the base and which covers the complementary disc while the lights for the lug are in the form of openings.
  • the complementary disc which is provided with a peripheral rim turned opposite the base and in which is housed the safety disc while the lights for the lug are are in the form of notches formed at the periphery of said safety disc.
  • the complementary disc and the contact support of the base are provided with combined means to ensure a relative pivoting amplitude of relative to each other, limited between the respective initial and final positions of connection of the plug in the base, this pivoting amplitude corresponding consequently to the angle of rotation provided for locking and unlocking in rotation of the casings of said plug and said base.
  • limiting means comprise for example a projection provided on the complementary disc or respectively the contact support of the base intended to cooperate with a corresponding recess, in arc length, at the desired amplitude and which is formed on the support.
  • the central opening of the safety disc is extended by a tubular element which passes through the central opening of the complementary disc to snap inside the insulating support and hold the discs.
  • connection device is composed of a fixed base 1 which can be seen in all the figures and a movable plug 2 ( Figures 5, 11 and 12).
  • the base 1 itself comprises an external casing 3 containing an insulating support 4 in which are mounted four contacts such as 5 ( Figures 3, 6, 8 and 11) hereinafter referred to as base contacts and a central earth contact 6 ( Figures 2, 5, 8, 9, 11 and 12).
  • the plug includes an outer casing 7 (partly seen in FIGS. 5, 6, 11 and 12) containing an insulating support, in which electrical contacts are mounted, and a central earth contact (not shown).
  • a cover (not shown) can be folded over the latter and locked in the closed position by a lock 8 ( Figures 1, 2, 4, 5, 7, 8, 10 and 11) , itself held by a spring 9 ( Figures 2, 5, 8 and 11).
  • the four contacts of the base are arranged in a standard way and the locations of the contacts of the plug are combined with the contacts of the base, but only the contacts corresponding to the current necessary for the circuit to be supplied are fitted.
  • the insulating support 4 of the base and the insulating support of the plug can generally take several relative positions relative to their respective casing.
  • the plug casing 7 can only be introduced axially into the casing 3 of the base in a well-defined angular position, thanks to the presence, for example, of a lug, not shown, secured to one of the two casings, fitted out with so that the complete insertion of the plug into the base is done in three stages, namely: firstly, by introducing the plug into the base in an axial translational movement, secondly, by a rotation relative of the two housings of a certain angle which brings the plug contacts opposite the base contacts, and finally, a third time of effective engagement of the contacts consisting of a second axial thrust of the plug in the base.
  • This arrangement is obtained for example by a bayonet mount of any suitable conventional type.
  • a safety disc 10 (figures 1 to 6), 10 ′ (figures 7 to 12) and a complementary disc 11 (figures 1 to 6), 11 ′ (figures 7 to 12 ).
  • the safety disc 10 has substantially the shape of a cover provided with a rim 13 (FIGS. 2, 3, 5 and 6) turned towards the base and which covers the complementary disc 11 while it is the complementary disc 11 ′ Which is on the contrary provided with a peripheral rim 14 (FIGS. 8, 9, 11 and 12) turned away from the base and in which is housed the safety disc 10 ′.
  • the complementary disc 11, 11 ′ is provided with a central aperture 15, 15 ′ ( Figures 2, 5, 8, 9, 11 and 12) and four apertures such as 16 and 16 ′ ( Figures 6 and 11 respectively) distributed exactly like the contacts on the base and on a circumference of the same radius as the distribution circumference of the latter.
  • the safety disk 10, 10 ′ comprises, in known manner, a central aperture 17, 17 ′ and a plurality of apertures (18a-18d; 18′a-18′d) situated on a circumference equal to the distribution circumference of the contacts. Two of these, 18c, 18d and 18′c, 18′d, are oblong lights for the reasons mentioned in the aforementioned certificate of addition.
  • the discs 10 and 11 are held against the support 4 by the head of the central earth contact 6 which serves, at the same time, to pivot said discs.
  • the central aperture 17 ′ of the safety disc 10 ′ is extended by a tubular element 12 (FIG. 8, 9, 11 and 12) intended to snap into place. inside the insulating support 4 to hold all of the discs 10 ′ and 11 ′ after having crossed the central aperture 15 ′ of the complementary disc 11 ′.
  • the safety disk 10, 10 ′ may have an annular protuberance around its central opening 17, 17 ′ which is housed in a corresponding recess in the complementary disc 11, 11 ′.
  • an annular protuberance is also provided in the complementary disc 11 ′, which is received in a corresponding recess in the support 4.
  • the discs 10, 11 and respectively 10 ′, 11 ′ are rotated by the plug when the plug is locked on the base.
  • the complementary disc 11, 11 ′ is intended to hide all of the base contacts when it is in its initial position.
  • the ejection washer 20 is immobilized in rotation only, relative to the support 4 of the base, for example by the engagement of at least one tongue directed axially inwards in a longitudinal groove 21 ( Figures 2, 5, 9 and 12) arranged on the lateral surface of said support 4. It is the straightened end at a right angle to the tongue which constitutes, for example, the locking spout 19.
  • the washer 20 is biased towards the disc 10, 10 ′ for example by a spring 23 surrounding the body of the support 4.
  • the locking spout 19 is intended to engage in a notch 24, 24 ′ ( Figures 2 and 9) formed in the complementary disc 11, 11 ′.
  • a lug 25 ( Figures 1, 2, 4 and 5), 25 ′ ( Figures 7, 8 and 10) is mounted in a fixed angular position in the complementary disc 11, 11 ′, and it is urged towards the safety disc by elastic means which will be discussed below, to cooperate with lights 26a-26f and respectively 26′a-26′f formed on this last.
  • the lights 26a to 26f of the disc 10 are openwork while the lights 26′a to 26′f of the 10 ′ disc is in the form of notches (10 ′ pivoting disc in disc 11 ′).
  • the lug 25 of the first embodiment is in the form of a piston urged by a spring 27 while the complementary disc 11 is pierced under said lug and that the support 4 comprises a housing 28 (FIG. 2) intended to receive a part of said lug when the latter is erased from the opening of the safety disc in which it is located.
  • the lug 25 ′ of the other embodiment is entirely arranged in the complementary disc 11 ′ in which it can retract as shown more particularly in FIG. 8.
  • the lug 25 ′ is arranged at the end of a lever 29 (FIG. 8) forming a spring.
  • the lug 25 of the first embodiment can replace the lug 25 ′ of the second embodiment with or without the retraction housing 28 and vice versa, etc.
  • the disc 11, 11 ′ and therefore the lug 25, 25 ′ occupy, relative to the base, an unchanging initial position determined during mounting, while the safety disc can occupy various initial angular positions since first of all suffice to erase the pin 25, 25 ′ of the light 26a to 26f or 26′a to 26′f which it occupies (by pressure using a tool or the like), its other end coming in the housing 28 of the support 4 in the case of the first embodiment, or completely retracting in the disc 11 ′ in the second embodiment, then turning the disc 10, 10 ′ to allow said lug 25, 25 ′, to come and engage in another light.
  • the lights 26a to 26f and respectively 26′a to 26′f therefore correspond to the various desired currents and their angular positions are of course chosen accordingly.
  • the pin 25, 25 ′ being visible on the upper face of the disc 10, 10 ′ (a bright color which can also be adopted), the nature of the current corresponding to the light used is mentioned in the vicinity thereof. (see for example in the figures 1, 4, 7 and 10 indications 1, 2, 3, 1 + N, 2 + N, 3 + N, DC).
  • a projection 30 is provided under the disc 11, 11 ′ (or respectively on the support 4) which is intended to cooperate with a corresponding recess 31, in arc length, the desired amplitude and which is provided on the support 4 (or respectively under the disc 11, 11 ′).
  • the amplitude of pivoting thus tolerated between the initial and final positions of connection respectively corresponds consequently to the angle of rotation provided for locking and unlocking in rotation of the housings of the plug and of the base.

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  • Details Of Connecting Devices For Male And Female Coupling (AREA)

Description

L'invention concerne les dispositifs de connexions électriques du type comportant une fiche à contacts multiples destinés à venir en prise avec les contacts correspondants d'un socle.The invention relates to electrical connection devices of the type comprising a multi-contact plug intended to engage with the corresponding contacts of a base.

Il est connu, notamment par le brevet français 1448070 et son addition n° 90457 déposés au nom du même titulaire, de réaliser un tel dispositif de manière telle qu'avec un modèle unique de socle et de fiche, toujours connectés selon le même plan de branchement, il soit impossible d'associer deux éléments non connectables de par la nature des courants correspondant à chacun d'eux. C'est-à-dire qu'avec un tel dispositif, si une fiche pénètre dans un socle, c'est que le socle peut lui fournir le courant qu'elle utilise et qu'inversement si une fiche ne peut pénéter dans un socle, c'est que ce dernier ne peut fournir le courant nécessaire.It is known, in particular from French patent 1448070 and its addition No. 90457 filed in the name of the same holder, to make such a device in such a way that with a single model of base and plug, always connected according to the same plan of connection, it is impossible to associate two non-connectable elements due to the nature of the currents corresponding to each of them. That is to say that with such a device, if a plug penetrates into a base, it is because the base can supply it with the current which it uses and conversely if a plug cannot penetrate into a base. is that the latter cannot supply the necessary current.

Comme dans le brevet déjà cité, l'invention vise principalement mais non exclusivement le cas d'un socle à quatre contacts ou pôles répartis sur une circonférence et, éventuellement, un contact de terre placé au centre.As in the aforementioned patent, the invention relates mainly but not exclusively to the case of a base with four contacts or poles distributed over a circumference and, possibly, an earth contact placed in the center.

Chacun des deux éléments, fiche et socle, est constitué par un carter et un support isolant de contacts monté de manière réglable en orientation relative par rapport audit carter tandis que les carters des deux éléments portent des moyens conjugués de guidage et de verrouillage par rotation aménagés pour que la jonction de ces éléments ne puisse être réalisée que dans une seule position angulaire relative.Each of the two elements, plug and base, is constituted by a casing and an insulating contact support mounted in an adjustable manner in relative orientation with respect to said casing while the casings of the two elements carry combined means of guidance and locking by rotation arranged so that the junction of these elements can only be carried out in a single relative angular position.

La différenciation des socles alimentés de façons différentes (par exemple: triphasé 500 volts, triphasé 380 volts, monophasé 110 volts, monophasé 24 volts, etc...) et des fiches correspondantes est réalisée en affectant à chaque courant nominal une position angulaire relative déterminée du support de contact dans son carter. Lorsque le nombre de ces positions relatives différentes est suffisant (de l'ordre de vingt), c'est-à-dire au moins égal au nombre des courants industriels normalement utilisés, il est possible de fixer une fois pour toutes la position correspondant à un courant déterminé et d'établir ainsi un système de normalisation valable pour l'ensemble de l'industrie.The differentiation of the bases supplied in different ways (for example: three-phase 500 volts, three-phase 380 volts, single-phase 110 volts, single-phase 24 volts, etc.) and the corresponding plugs is carried out by assigning to each nominal current a determined relative angular position of the contact support in its housing. When the number of these different relative positions is sufficient (of the order of twenty), that is to say at least equal to the number of industrial currents normally used, it is possible to fix once and for all the position corresponding to a determined current and thereby establish a normalization system valid for the whole of industry.

En outre, un disque de sécurité en matière isolante est monté pivotant sur le socle de manière à pouvoir être entraîné en rotation par la fiche, de façon coaxiale à la circonférence des contacts, lors du verrouillage de ladite fiche sur ledit socle. Ce disque de sécurité est muni d'ajours destinés à être traversés par les contacts de la fiche, répartis sur une circonférence superposée à celle des contacts et disposés de manière telle, qu'en fin de rotation de verrouillage seuls certains emplacements de contacts soient découverts, des moyens étant prévus pour que ce disque de sécurité soit verrouillé, lors de la disjonction de la fiche et du socle, dans une position initiale dans laquelle tous les contacts sont masqués.In addition, a safety disc of insulating material is pivotally mounted on the base so as to be able to be driven in rotation by the plug, coaxially with the circumference of the contacts, when said plug is locked on said base. This safety disc is provided with openings intended to be crossed by the contacts of the plug, distributed over a circumference superimposed on that of the contacts and arranged in such a way that at the end of the locking rotation only certain contact locations are discovered. , means being provided so that this safety disk is locked, during the disjunction of the plug and the base, in an initial position in which all the contacts are hidden.

Dans les dispositifs connus, le disque de sécurité est verrouillé dans la position initiale choisie en mettant en prise au moins un bec porté par une rondelle de sécurité entourant le support de contact avec l'une d'une pluralité d'encoches réparties à la périphérie du disque, la rondelle étant sollicitée vers le disque par un moyen élastique et immobilisée en rotation par des moyens de guidage. La rondelle est repoussée par la fiche lors de l'introduction de cette dernière sur le socle, ce qui permet de déverrouiller le disque de sécurité. Selon le brevet FR 2212655 au nom du même titulaire, l'encoche qui correspond à la bonne position initiale selon le courant nominal désiré peut être avantageusement débouchée seulement lors du montage initial.In known devices, the safety disc is locked in the initial chosen position by engaging at least one spout carried by a safety washer surrounding the contact support with one of a plurality of notches distributed around the periphery of the disc, the washer being urged towards the disc by an elastic means and immobilized in rotation by guide means. The washer is pushed back by the plug when the latter is inserted on the base, which enables the safety disc to be unlocked. According to patent FR 2212655 in the name of the same holder, the notch which corresponds to the correct initial position according to the desired nominal current can advantageously be uncorked only during the initial assembly.

Un tel mode de réalisation présente certains inconvénients qui proviennent du fait que le disque de sécurité a une double fonction: masquer tous les emplacements de contact en position initiale, et découvrir des emplacements de contact prédéterminés en position finale de connexion.Such an embodiment has certain drawbacks which arise from the fact that the safety disk has a double function: to hide all the contact locations in the initial position, and to discover predetermined contact locations in the final connection position.

C'est pourquoi le brevet Français 2270696 toujours au nom du même déposant, et pui montre toutes les caractéristiques du préambule de la revendication 1, préconise de dissocier les deux fonctions au moyen d'un second disque, dit complémentaire, en matière isolante, qui est monté pivotant sur le socle coaxialement au disque de sécurité et qui est aménagé de façon à être entraîné en rotation en même temps que ce dernier entre la position initiale et la position finale de connexion, ledit disque complémentaire étant muni d'ajours en nombre égal à celui des emplacements de contact sur le socle et répartis de la même façon que ces derniers, tandis que la position angulaire relative du socle et du disque complémentaire est telle que lesdits ajours viennent en regard desdits emplacements de contact en position finale.This is why the French patent 2270696 always in the name of the same applicant, and then shows all the characteristics of the preamble of claim 1, recommends to dissociate the two functions by means of a second disc, called complementary, in insulating material, which is pivotally mounted on the base coaxially with the safety disc and which is arranged so as to be rotated at the same time as the latter between the initial position and the final connection position, said complementary disc being provided with openings of equal number to that of the contact locations on the base and distributed in the same way that the latter, while the relative angular position of the base and the complementary disc is such that said openings come opposite said contact locations in the final position.

Ainsi le disque complémentaire est destiné à masquer la totalité des emplacements de contact en position initiale tandis que le disque de sécurité conserve sa fonction de sélection des emplacements de contact à découvrir en position finale.Thus, the complementary disc is intended to mask all of the contact locations in the initial position while the safety disc retains its function of selecting the contact locations to be discovered in the final position.

Le disque complémentaire comporte dans ce système connu deux encoches diamètralement opposées et le disque de sécurité une pluralité de cavités réparties sur son pourtour.The complementary disc comprises in this known system two diametrically opposite notches and the safety disc a plurality of cavities distributed around its periphery.

La position initiale des deux disques est assurée par deux becs en saillie sur une rondelle de sécurité, dont il a déjà été question ci-avant à propos du mode de réalisation à disque unique, lesdits becs étant destinés à s'engager à la fois à travers les encoches du disque complémentaire et dans deux des cavités du disque de sécurité.The initial position of the two discs is ensured by two projecting spouts on a safety washer, which has already been discussed above in connection with the single disc embodiment, said spouts being intended to engage both through the notches of the complementary disc and into two of the cavities of the safety disc.

On comprend que la position initiale du disque complémentaire est toujours la même, alors que celle du disque de sécurité est choisie au moment du montage, en fonction du courant nominal désiré.It is understood that the initial position of the complementary disc is always the same, while that of the safety disc is chosen at the time of mounting, depending on the desired nominal current.

Toutefois il est clair aussi que cette position initiale des disques par rapport au socle est immuable et ne correspond donc qu'à un seul courant, alors qu'elle n'est en outre connue que par le monteur initial.However, it is also clear that this initial position of the discs relative to the base is immutable and therefore corresponds to only one current, while it is also known only by the initial editor.

Ceci est d'autant plus gênant que l'installateur teste généralement ses branchements, et pour cela il agit sur la rondelle par tout moyen approprié en guise de fiche, pour déverrouiller les disques et pour découvrir les contacts en les faisant tourner. De la sorte au cours de la manoeuvre de remise en place le risque de choisir une autre cavité pour le disque de sécurité, en modifiant ainsi la position relative des deux disques, n'est pas nul.This is all the more annoying as the installer generally tests its connections, and for this it acts on the washer by any appropriate means as a plug, to unlock the discs and to discover the contacts by rotating them. In this way, during the resetting maneuver, the risk of choosing another cavity for the safety disc, thereby modifying the relative position of the two discs, is not zero.

C'est pourquoi les inventeurs ont imaginé un moyen pour pouvoir modifier par une manoeuvre spéciale la position initiale du disque de sécurité en indiquant en même temps, sans risque d'erreur, la nature du courant affecté au dispositif de connexion.This is why the inventors have devised a means of being able to modify, by a special maneuver, the initial position of the safety disk by indicating at the same time, without risk of error, the nature of the current allocated to the connection device.

C'est ainsi que l'invention propose un dispositif du type ci-avant mentionné, entre autre pourvu d'un disque de sécurité, d'un disque complémentaire et d'un système de verrouillage de la position initiale du disque, qui s'efface lors de l'introduction de la fiche dans le socle, ce dispositif étant notamment remarquable en ce que le système de verrouillage n'agit que sur le disque complémentaire tandis que des moyens de blocage sont prévus entre le disque complémentaire et le disque de sécurité afin que ce dernier puisse être bloqué dans plusieurs positions angulaires préétablies relativement au disque complémentaire de manière telle que l'on puisse affecter à volonté une position initiale au disque de sécurité en agissant sur lesdits moyens de blocage.Thus, the invention provides a device of the type mentioned above, inter alia provided with a safety disc, an additional disc and a position locking system. initial disc, which disappears when the plug is inserted into the base, this device being particularly remarkable in that the locking system acts only on the complementary disc while blocking means are provided between the complementary disc and the safety disc so that the latter can be locked in several predetermined angular positions relative to the complementary disc in such a way that an initial position can be assigned to the safety disc at will by acting on said locking means.

Avatageusement au moins une partie des moyens de blocage est visible sur la face supérieure du disque de sécurité de telle sorte que cette partie visible, en fonction de sa position sur le disque, permet de connaître la nature du courant affecté au dispositif, puisque ledit courant dépend de la position initiale du disque de sécurité.Advantageously, at least part of the blocking means is visible on the upper face of the safety disk so that this visible part, as a function of its position on the disk, makes it possible to know the nature of the current assigned to the device, since said current depends on the initial position of the safety disk.

Cette double fonction des moyens de blocage est tout à fait intéressante, car non seulement il devient possible de modifier à volonté l'affectation du dispositif, mais le courant affecté est en outre tout de suite repérable.This double function of the blocking means is quite interesting, because not only it becomes possible to modify at will the allocation of the device, but the affected current is also immediately identifiable.

De préférence, les moyens de blocage comportent un ergot monté en position angulaire fixe dans le disque complémentaire, et sollicité par des moyens élastiques vers le disque de sécurité pour venir coopérer avec des lumières ménagées sur ce dernier, de façon à pouvoir bloquer les deux disques entre eux selon plusieurs positions angulaires relatives repérables, tandis que ledit ergot peut être effacé à volonté en agissant sur lui à l'encontre de ses moyens élastiques, en vue de modifier la position initiale relative du disque de sécurité par rapport au disque complémentaire et donc par rapport au socle.Preferably, the locking means comprise a lug mounted in a fixed angular position in the complementary disc, and urged by elastic means towards the safety disc to come to cooperate with lights made on the latter, so as to be able to block the two discs between them according to several identifiable relative angular positions, while said lug can be erased at will by acting on it against its elastic means, in order to modify the initial relative position of the safety disc relative to the complementary disc and therefore relative to the base.

Selon un premier mode de réalisation, le support de contacts du socle comporte un logement destiné à recevoir une partie dudit ergot lorsque celui-ci est effacé de la lumière du disque de sécurité dans laquelle il se trouve, lorsque l'on désire modifier la position relative des disques.According to a first embodiment, the contact support of the base comprises a housing intended to receive a part of said lug when the latter is erased from the light of the safety disc in which it is located, when it is desired to modify the position relative discs.

Selon un autre mode de réalisation, l'ergot est entièrement aménagé dans le disque complémentaire dans lequel il peut s'escamoter. Avantageusement dans ce cas, l'ergot est disposé à l'extrémité d'un levier formant ressort.According to another embodiment, the lug is entirely arranged in the complementary disc in which it can retract. Advantageously in this case, the lug is disposed at the end of a lever forming a spring.

Le disque de sécurité présente par exemple la forme d'un couvercle muni d'un rebord périphérique tourné vers le socle et qui vient recouvrir le disque complémentaire tandis que les lumières pour l'ergot se présentent sous la forme d'ajours.The safety disc has for example the form of a cover provided with a peripheral rim turned towards the base and which covers the complementary disc while the lights for the lug are in the form of openings.

Au contraire, selon un autre mode de réalisation, c'est le disque complémentaire qui est pourvu d'un rebord périphérique tourné à l'opposé du socle et dans lequel vient se loger le disque de sécurité tandis que les lumières pour l'ergot se présentent sous la forme d'encoches ménagées à la périphérie dudit disque de sécurité.On the contrary, according to another embodiment, it is the complementary disc which is provided with a peripheral rim turned opposite the base and in which is housed the safety disc while the lights for the lug are are in the form of notches formed at the periphery of said safety disc.

Pour permettre notamment à l'installateur de tester les contacts comme il a été dit ci-avant, et selon un mode de réalisation, le disque complémentaire et le support de contacts du socle sont pourvus de moyens conjugués pour assurer une amplitude de pivotement relatif de l'un par rapport à l'autre, limitée entre les positions respectivement initiale et finale de connexion de la fiche dans le socle, cette amplitude de pivotement correspondant en conséquence à l'angle de rotation prévu pour le verrouillage et le déverrouillage en rotation des carters de ladite fiche et dudit socle.In particular to allow the installer to test the contacts as it was said above, and according to one embodiment, the complementary disc and the contact support of the base are provided with combined means to ensure a relative pivoting amplitude of relative to each other, limited between the respective initial and final positions of connection of the plug in the base, this pivoting amplitude corresponding consequently to the angle of rotation provided for locking and unlocking in rotation of the casings of said plug and said base.

Ainsi, après un déverrouillage des disques, il est possible de les entraîner pour découvrir les contacts avant de revenir en position initiale, les rotations dans un sens et dans l'autre étant limitées par lesdits moyens conjugués.Thus, after unlocking the discs, it is possible to train them to discover the contacts before returning to the initial position, the rotations in one direction and in the other being limited by said combined means.

Ces moyens de limitation comportent par exemple une saillie prévue sur le disque complémentaire ou respectivement le support de contacts du socle destinée à coopérer avec un évidement correspondant, en longueur d'arc de cercle, à l'amplitude souhaitée et qui est ménagé sur le support de contacts du socle ou respectivement le disque complémentaire.These limiting means comprise for example a projection provided on the complementary disc or respectively the contact support of the base intended to cooperate with a corresponding recess, in arc length, at the desired amplitude and which is formed on the support. base contacts or the complementary disc respectively.

En outre et de manière accessoire mais avantageuse pour un dispositif dont les disques de sécurité et complémentaire présentent chacun un ajour central destiné au passage de la fiche du contact terre, l'ajour central du disque de sécurité se prolonge par un élément tubulaire qui traverse l'ajour central du disque complémentaire pour venir s'encliqueter à l'intérieur du support isolant et maintenir les disques.In addition and incidentally but advantageously for a device whose safety and complementary discs each have a central opening intended for the passage of the earth contact plug, the central opening of the safety disc is extended by a tubular element which passes through the central opening of the complementary disc to snap inside the insulating support and hold the discs.

L'invention sera bien comprise à la lecture de la description qui va suivre et qui se réfère aux dessins annexés dans lesquels:

  • la figure 1 est une vue en plan du socle d'un dispositif selon un premier mode de réalisation de l'invention, et dans une première position initiale verrouillée,
  • la figure 2 est une coupe selon II-II de la figure 1,
  • la figure 3 est une demi-coupe selon III de la figure 1,
  • la figure 4 correspond à la figure 1 mais en position déverrouillée et après rotation des disques,
  • la figure 5 est une coupe selon V-V de la figure 4,
  • la figure 6 est une demi-coupe selon VI de la figure 4,
  • la figure 7 est une vue en plan du socle d'un dispositif selon un second mode de réalisation de l'invention, et dans une première position initiale verrouillée,
  • la figure 8 est une coupe selon VIII-VIII de la figure 7,
  • la figure 9 est une coupe selon IX-IX de la figure 7,
  • la figure 10 correspond à la figure 7 mais selon une position déverrouillée et après rotation des disques,
  • la figure 11 est une coupe selon XI-XI de la figure 10 et,
  • la figure 12 est une coupe selon XII-XII de la figure 10.
The invention will be clearly understood on reading the description which follows and which refers to the appended drawings in which:
  • FIG. 1 is a plan view of the base of a device according to a first embodiment of the invention, and in a first locked initial position,
  • FIG. 2 is a section on II-II of FIG. 1,
  • FIG. 3 is a half-section on III in FIG. 1,
  • FIG. 4 corresponds to FIG. 1 but in the unlocked position and after rotation of the discs,
  • FIG. 5 is a section along VV of FIG. 4,
  • FIG. 6 is a half-section along VI of FIG. 4,
  • FIG. 7 is a plan view of the base of a device according to a second embodiment of the invention, and in a first locked initial position,
  • FIG. 8 is a section along VIII-VIII of FIG. 7,
  • FIG. 9 is a section on IX-IX of FIG. 7,
  • FIG. 10 corresponds to FIG. 7 but in an unlocked position and after rotation of the discs,
  • FIG. 11 is a section along XI-XI of FIG. 10 and,
  • Figure 12 is a section on XII-XII of Figure 10.

Il est clair que les dessins montrent deux modes de réalisation qui procèdent de la même invention, les moyens de blocage qui entraînent quelques modifications des disques étant basés sur le même principe. Il est d'ailleurs possible de mélanger certains éléments d'un mode de réalisation à l'autre. En fait, les différences proviennent essentiellement de problèmes techniques de fabrication dûs à des dimensions différentes selon la nature des puissances en jeu.It is clear that the drawings show two embodiments which proceed from the same invention, the locking means which cause some modifications of the discs being based on the same principle. It is also possible to mix certain elements from one embodiment to another. In fact, the differences are mainly due to technical manufacturing problems due to different dimensions depending on the nature of the powers involved.

Par soucis de clarté, on référence les éléments identiques ou quasi-identiques par les mêmes numéros, tandis que les éléments voisins et de même fonction se différencient d'un mode de réalisation à l'autre par un "prime".For the sake of clarity, the identical or almost identical elements are referred to by the same numbers, while the neighboring elements and of the same function differ from one embodiment to the other by a "premium".

Le dispositif de connexion selon l'invention est composé d'un socle fixe 1 que l'on peut voir sur toutes les figures et d'une fiche mobile 2 (figures 5, 11 et 12).The connection device according to the invention is composed of a fixed base 1 which can be seen in all the figures and a movable plug 2 (Figures 5, 11 and 12).

Le socle 1 comporte lui-même un carter extérieur 3 renfermant un support isolant 4 dans lequel sont montés quatre contacts tels que 5 (figures 3, 6, 8 et 11) dénommés ci-après contacts du socle et un contact central de terre 6 (figures 2, 5, 8, 9, 11 et 12). La fiche comporte un carter extérieur 7 (vue en partie sur les figures 5, 6, 11 et 12) renfermant un support isolant, dans lequel sont montés des contacts électriques, et un contact central de terre (non représentés). Lorsque la fiche est éloignée du socle 1, un couvercle (non représenté) peut être rabattu sur celui-ci et verrouillé en position de fermeture par un verrou 8 (figures 1, 2, 4, 5, 7, 8, 10 et 11), lui-même maintenu par un ressort 9 (figures 2, 5, 8 et 11).The base 1 itself comprises an external casing 3 containing an insulating support 4 in which are mounted four contacts such as 5 (Figures 3, 6, 8 and 11) hereinafter referred to as base contacts and a central earth contact 6 ( Figures 2, 5, 8, 9, 11 and 12). The plug includes an outer casing 7 (partly seen in FIGS. 5, 6, 11 and 12) containing an insulating support, in which electrical contacts are mounted, and a central earth contact (not shown). When the plug is moved away from the base 1, a cover (not shown) can be folded over the latter and locked in the closed position by a lock 8 (Figures 1, 2, 4, 5, 7, 8, 10 and 11) , itself held by a spring 9 (Figures 2, 5, 8 and 11).

Les quatre contacts du socle sont disposés de façon standard et les emplacements des contacts de la fiche sont conjugués des contacts du socle, mais seuls sont équipés les contacts correspondant au courant nécessaire au circuit à alimenter.The four contacts of the base are arranged in a standard way and the locations of the contacts of the plug are combined with the contacts of the base, but only the contacts corresponding to the current necessary for the circuit to be supplied are fitted.

Le support isolant 4 du socle et le support isolant de la fiche peuvent généralement prendre plusieurs positions relatives par rapport à leur carter respectif.The insulating support 4 of the base and the insulating support of the plug can generally take several relative positions relative to their respective casing.

On associe ainsi une position relative déterminée à un courant déterminé par sa nature et sa tension efficace, par exemple 380 volts alternatif, 220 volts alternatif, 110 volts continu, 48 volts alternatif, 24 volts continu, etc.We thus associate a determined relative position with a current determined by its nature and its effective voltage, for example 380 volts AC, 220 volts AC, 110 volts DC, 48 volts AC, 24 volts DC, etc.

Le carter 7 de fiche ne peut être introduit axialement dans le carter 3 du socle que dans une position angulaire bien déterminée, grâce à la présence, par exemple, d'un ergot, non représenté, solidaire d'un des deux carters, aménagé de manière que la mise en place complète de la fiche dans le socle se fasse en trois temps, à savoir: en premier temps, par une introduction de la fiche dans le socle en un mouvement de translation axiale, en deuxième temps, par une rotation relative des deux carters d'un certain angle qui amène les contacts de fiches en regard des contacts de socle, et enfin, un troisième temps de mise en prise effective des contacts consistant en une deuxième poussée axiale de la fiche dans le socle. Cette disposition est obtenue par exemple par un montage à baïonnette de tout type classique convenable.The plug casing 7 can only be introduced axially into the casing 3 of the base in a well-defined angular position, thanks to the presence, for example, of a lug, not shown, secured to one of the two casings, fitted out with so that the complete insertion of the plug into the base is done in three stages, namely: firstly, by introducing the plug into the base in an axial translational movement, secondly, by a rotation relative of the two housings of a certain angle which brings the plug contacts opposite the base contacts, and finally, a third time of effective engagement of the contacts consisting of a second axial thrust of the plug in the base. This arrangement is obtained for example by a bayonet mount of any suitable conventional type.

Sur le support isolant 4 du socle, sont montés pivotants un disque de sécurité 10 (figures 1 à 6), 10′ (figures 7 à 12) et un disque complémentaire 11 (figures 1 à 6), 11′ (figures 7 à 12).On the insulating support 4 of the base, are pivotally mounted a safety disc 10 (figures 1 to 6), 10 ′ (figures 7 to 12) and a complementary disc 11 (figures 1 to 6), 11 ′ (figures 7 to 12 ).

Le disque de sécurité 10 présente sensiblement la forme d'un couvercle muni d'un rebord 13 (figures 2, 3, 5 et 6) tourné vers le socle et qui vient recouvrir le disque complémentaire 11 tandis que c'est le disque complémentaire 11′ qui est au contraire muni d'un rebord périphérique 14 (figures 8, 9, 11 et 12) tourné à l'opposé du socle et dans lequel vient se loger le disque de sécurité 10′.The safety disc 10 has substantially the shape of a cover provided with a rim 13 (FIGS. 2, 3, 5 and 6) turned towards the base and which covers the complementary disc 11 while it is the complementary disc 11 ′ Which is on the contrary provided with a peripheral rim 14 (FIGS. 8, 9, 11 and 12) turned away from the base and in which is housed the safety disc 10 ′.

Le disque complémentaire 11, 11′ est muni d'un ajour central 15, 15′ (figures 2, 5, 8, 9, 11 et 12) et de quatre ajours tels que 16 et 16′ (figures 6 et respectivement 11) répartis exactement comme les contacts du socle et sur une circonférence de même rayon que la circonférence de répartition de ces derniers. Le disque de sécurité 10, 10′ comporte de façon connue, un ajour central 17, 17′ et une pluralité d'ajours (18a-18d; 18′a-18′d) situés sur une circonférence égale à la circonférence de répartition des contacts. Deux de ces derniers, 18c, 18d et 18′c, 18′d, sont des lumières oblongues pour les raisons évoquées dans le certificat d'addition précité.The complementary disc 11, 11 ′ is provided with a central aperture 15, 15 ′ (Figures 2, 5, 8, 9, 11 and 12) and four apertures such as 16 and 16 ′ (Figures 6 and 11 respectively) distributed exactly like the contacts on the base and on a circumference of the same radius as the distribution circumference of the latter. The safety disk 10, 10 ′ comprises, in known manner, a central aperture 17, 17 ′ and a plurality of apertures (18a-18d; 18′a-18′d) situated on a circumference equal to the distribution circumference of the contacts. Two of these, 18c, 18d and 18′c, 18′d, are oblong lights for the reasons mentioned in the aforementioned certificate of addition.

Dans le mode de réalisation des figures 1 à 6, les disques 10 et 11 sont maintenus contre le support 4 par la tête du contact central de terre 6 qui sert, en même temps, de pivot auxdits disques.In the embodiment of Figures 1 to 6, the discs 10 and 11 are held against the support 4 by the head of the central earth contact 6 which serves, at the same time, to pivot said discs.

Selon la variante du mode de réalisation des figures 7 à 12, l'ajour central 17′ du disque de sécurité 10′ se prolonge par un élément tubulaire 12 (figure 8, 9, 11 et 12) destiné à venir s'encliqueter à l'intérieur du support isolant 4 pour maintenir l'ensemble des disques 10′ et 11′ après avoir traversé l'ajour central 15′ du disque complémentaire 11′.According to the variant of the embodiment of FIGS. 7 to 12, the central aperture 17 ′ of the safety disc 10 ′ is extended by a tubular element 12 (FIG. 8, 9, 11 and 12) intended to snap into place. inside the insulating support 4 to hold all of the discs 10 ′ and 11 ′ after having crossed the central aperture 15 ′ of the complementary disc 11 ′.

En outre, comme le montrent les dessins, le disque de sécurité 10, 10′ peut présenter une protubérance annulaire autour de son ajour central 17, 17′ qui vient se loger dans un évidement correspondant du disque complémentaire 11, 11′. Par ailleurs, selon le mode de réalisation des figures 1 à 6, une protubérance annulaire est également prévue dans le disque complémentaire 11′, qui vient se loger dans un évidement correspondant du support 4.In addition, as shown in the drawings, the safety disk 10, 10 ′ may have an annular protuberance around its central opening 17, 17 ′ which is housed in a corresponding recess in the complementary disc 11, 11 ′. Furthermore, according to the embodiment of FIGS. 1 to 6, an annular protuberance is also provided in the complementary disc 11 ′, which is received in a corresponding recess in the support 4.

Les disques 10, 11 et respectivement 10′, 11′ sont entraînés en rotation par la fiche lors du verrouillage de la fiche sur le socle.The discs 10, 11 and respectively 10 ′, 11 ′ are rotated by the plug when the plug is locked on the base.

On comprend que le disque complémentaire 11, 11′ est destiné à masquer la totalité des contacts de socle lorsqu'il est dans sa position initiale.It is understood that the complementary disc 11, 11 ′ is intended to hide all of the base contacts when it is in its initial position.

Le positionnement initial du disque complémentaire 11, 11′ est assuré par un bec de verrouillage 19 (figures 2, 9 et 12) en saillie sur une rondelle de sécurité ou d'éjection 20 (figures 2, 3, 5, 6, 8, 9, 11 et 12).The initial positioning of the complementary disc 11, 11 ′ is ensured by a locking spout 19 (FIGS. 2, 9 and 12) projecting from a safety or ejection washer 20 (FIGS. 2, 3, 5, 6, 8, 9, 11 and 12).

La rondelle d'éjection 20 est immobilisée en rotation seulement, par rapport au support 4 du socle, par exemple par l'engagement d'au moins une languette dirigée axialement vers l'intérieur dans une rainure longitudinale 21 (figures 2, 5, 9 et 12) aménagée sur la surface latérale dudit support 4. C'est l'extrémité redressée à angle droit de la languette qui constitue par exemple le bec de verrouillage 19.The ejection washer 20 is immobilized in rotation only, relative to the support 4 of the base, for example by the engagement of at least one tongue directed axially inwards in a longitudinal groove 21 (Figures 2, 5, 9 and 12) arranged on the lateral surface of said support 4. It is the straightened end at a right angle to the tongue which constitutes, for example, the locking spout 19.

La rondelle 20 est sollicitée vers le disque 10, 10′ par exemple par un ressort 23 entourant le corps du support 4.The washer 20 is biased towards the disc 10, 10 ′ for example by a spring 23 surrounding the body of the support 4.

Le bec de verrouillage 19 est destiné à venir s'engager dans une encoche 24, 24′ (figures 2 et 9) ménagée dans le disque complémentaire 11, 11′.The locking spout 19 is intended to engage in a notch 24, 24 ′ (Figures 2 and 9) formed in the complementary disc 11, 11 ′.

Afin de bloquer les disques 10, 11 et respectivement 10′, 11′ selon diverses positions relatives, un ergot 25 (figures 1, 2, 4 et 5), 25′ (figures 7, 8 et 10) est monté en position angulaire fixe dans le disque complémentaire 11, 11′, et il est sollicité vers le disque de sécurité par des moyens élastiques dont il sera question ci-après, pour venir coopérer avec des lumières 26a-26f et respectivement 26′a-26′f ménagées sur ce dernier.In order to lock the discs 10, 11 and respectively 10 ′, 11 ′ according to various relative positions, a lug 25 (Figures 1, 2, 4 and 5), 25 ′ (Figures 7, 8 and 10) is mounted in a fixed angular position in the complementary disc 11, 11 ′, and it is urged towards the safety disc by elastic means which will be discussed below, to cooperate with lights 26a-26f and respectively 26′a-26′f formed on this last.

Etant donné les structures un peu différentes des disques 10, 11 d'une part et 10′, 11′ d'autre part, les lumières 26a à 26f du disque 10 sont des ajours tandis que les lumières 26′a à 26′f du disque 10′ se présentent sous la forme d'encoches ( disque 10′ pivotant dans le disque 11′).Given the slightly different structures of the discs 10, 11 on the one hand and 10 ′, 11 ′ on the other hand, the lights 26a to 26f of the disc 10 are openwork while the lights 26′a to 26′f of the 10 ′ disc is in the form of notches (10 ′ pivoting disc in disc 11 ′).

En outre, l'ergot 25 du premier mode de réalisation se présente sous la forme d'un piston sollicité par un ressort 27 tandis que le disque complémentaire 11 est percé sous ledit ergot et que le support 4 comporte un logement 28 (figure 2) destiné à recevoir une partie dudit ergot lorsque celui-ci est effacé de l'ajour du disque de sécurité dans lequel il se trouve.In addition, the lug 25 of the first embodiment is in the form of a piston urged by a spring 27 while the complementary disc 11 is pierced under said lug and that the support 4 comprises a housing 28 (FIG. 2) intended to receive a part of said lug when the latter is erased from the opening of the safety disc in which it is located.

De manière un peu différente, l'ergot 25′ de l'autre mode de réalisation est entièrement aménagé dans le disque complémentaire 11′ dans lequel il peut s'escamoter comme le montre plus particulièrement la figure 8. Dans ce mode de réalisation l'ergot 25′ est disposé à l'extrémité d'un levier 29 (figure 8) formant ressort.In a slightly different manner, the lug 25 ′ of the other embodiment is entirely arranged in the complementary disc 11 ′ in which it can retract as shown more particularly in FIG. 8. In this embodiment the lug 25 ′ is arranged at the end of a lever 29 (FIG. 8) forming a spring.

Toutefois, il est clair que si le premier mode de réalisation représenté est plus particulièrement destiné à de plus fortes puissances, certaines caractéristiques d'un mode de réalisation peuvent facilement être utilisées dans l'autre.However, it is clear that if the first embodiment shown is more particularly intended for higher powers, certain characteristics of one embodiment can easily be used in the other.

Par exemple, l'ergot 25 du premier mode de réalisation peut remplacer l'ergot 25′ du second mode avec ou non le logement 28 d'escamotage et vice-versa, etc.For example, the lug 25 of the first embodiment can replace the lug 25 ′ of the second embodiment with or without the retraction housing 28 and vice versa, etc.

Ainsi, on comprend que le disque 11, 11′ et donc l'ergot 25, 25′ occupent, par rapport au socle, une position initiale immuable déterminée au montage, tandis que le disque de sécurité peut occuper diverses positions angulaires initiales puisqu'il suffit d'abord d'effacer l'ergot 25, 25′ de la lumière 26a à 26f ou 26′a à 26′f qu'il occupe (par pression au moyen d'un outil ou autre), son autre extrémité venant dans le logement 28 du support 4 dans le cas du premier mode de réalisation, ou s'escamotant complètement dans le disque 11′ dans le second mode de réalisation, puis de tourner le disque 10, 10′ pour permettre audit ergot 25, 25′, de venir s'engager dans une autre lumière.Thus, it is understood that the disc 11, 11 ′ and therefore the lug 25, 25 ′ occupy, relative to the base, an unchanging initial position determined during mounting, while the safety disc can occupy various initial angular positions since first of all suffice to erase the pin 25, 25 ′ of the light 26a to 26f or 26′a to 26′f which it occupies (by pressure using a tool or the like), its other end coming in the housing 28 of the support 4 in the case of the first embodiment, or completely retracting in the disc 11 ′ in the second embodiment, then turning the disc 10, 10 ′ to allow said lug 25, 25 ′, to come and engage in another light.

Les lumières 26a à 26f et respectivement 26′a à 26′f correspondent donc aux divers courants souhaités et leurs positions angulaires sont bien sûr choisies en conséquence.The lights 26a to 26f and respectively 26′a to 26′f therefore correspond to the various desired currents and their angular positions are of course chosen accordingly.

Par ailleurs, l'ergot 25, 25′ étant visible sur la face supérieure du disque 10, 10′ (une couleur vive pouvant en outre être adoptée), la nature du courant correspondant à la lumière utilisée est mentionnée au voisinage de celle-ci (voir par exemple sur les figures 1, 4, 7 et 10 les indications 1, 2, 3, 1+N, 2+N, 3+N, DC).Furthermore, the pin 25, 25 ′ being visible on the upper face of the disc 10, 10 ′ (a bright color which can also be adopted), the nature of the current corresponding to the light used is mentioned in the vicinity thereof. (see for example in the figures 1, 4, 7 and 10 indications 1, 2, 3, 1 + N, 2 + N, 3 + N, DC).

A partir d'une position donnée (figures 1, 2, 3 d'une part, et 7, 8, 9 d'autre part), le disque de sécurité 10, 10′ étant bloqué dans la position par exemple 3+N, par l'ergot 25, 25′, tandis que la rondelle 20 verrouille par son bec 19 le disque 11, 11′, on enfonce dans un premier temps la fiche dans le socle de telle sorte que l'extrémité frontale du carter 7 de la fiche (figures 5, 6, 11, 12) repousse la rondelle 20 à l'encontre du resort 23. De la sorte, on dégage le bec 19 de l'encoche 24, 24′ (figures 2 et 5 et respectivement 9 et 12). La fiche est ensuite mue en rotation de telle sorte que les disques 10, 11 et respectivement 10′, 11′ entraînés par coopération des contacts de la fiche et des ajours des disques, dégagent les contacts voulus du socle.From a given position (Figures 1, 2, 3 on the one hand, and 7, 8, 9 on the other hand), the safety disc 10, 10 ′ being locked in the position for example 3 + N, by the lug 25, 25 ′, while the washer 20 locks the disc 11, 11 ′ by its beak 19, the plug is pressed first into the base so that the front end of the casing 7 of the plug (Figures 5, 6, 11, 12) pushes the washer 20 against the resort 23. In this way, the spout 19 is released from the notch 24, 24 ′ (Figures 2 and 5 and respectively 9 and 12 ). The plug is then rotated so that the disks 10, 11 and respectively 10 ′, 11 ′ driven by cooperation of the contacts of the plug and the openings of the disks, release the desired contacts from the base.

Cette translation et rotation avec déverrouillage, correspond au passage des figures 1, 2, 3 aux figures 4, 5, 6 et respectivement des figures 7, 8, 9 aux figures 10, 11 et 12.This translation and rotation with unlocking, corresponds to the passage of Figures 1, 2, 3 to Figures 4, 5, 6 and respectively of Figures 7, 8, 9 to Figures 10, 11 and 12.

Par ailleurs, comme le montrent plus particulièrement les figures 1, 4, 7 et 10, pour assurer une limitation de l'amplitude de pivotement relatif des disques 10, 11; 10′, 11′ et du support 4, une saillie 30 est prévue sous le disque 11, 11′ (ou respectivement sur le support 4) qui est destinée à coopérer avec un évidement 31 correspondant, en longueur d'arc de cercle, à l'amplitude souhaitée et qui est ménagée sur le support 4 (ou respectivement sous le disque 11, 11′). L'amplitude de pivotement ainsi tolérée entre les positions respectivement initiale et finale de connexion correspond en conséquence à l'angle de rotation prévu pour le verrouillage et le déverrouillage en rotation des carters de la fiche et du socle.Furthermore, as shown more particularly in Figures 1, 4, 7 and 10, to ensure a limitation of the amplitude of relative pivoting of the discs 10, 11; 10 ′, 11 ′ and of the support 4, a projection 30 is provided under the disc 11, 11 ′ (or respectively on the support 4) which is intended to cooperate with a corresponding recess 31, in arc length, the desired amplitude and which is provided on the support 4 (or respectively under the disc 11, 11 ′). The amplitude of pivoting thus tolerated between the initial and final positions of connection respectively corresponds consequently to the angle of rotation provided for locking and unlocking in rotation of the housings of the plug and of the base.

Claims (11)

  1. Selective device for electrical connection comprising a base (1) and a plug (2) with multiple contacts designed to be engaged with the corresponding contacts (5, 6) of the base (1), each of the two elements plug and base being constituted by a casing (7, 3) and an insulating support (4) for contacts, the casings (7, 3) of the two elements bearing interacting means for guidance and for locking by rotation, disposed so that their junction can only be effected in a single relative angular position, while a safety disc (10, 10′) and a complementary disc (11, 11′) of insulating material are mounted pivoting on the base coaxial with the circumference of the contacts, the discs being provided with openings (15, 16, 17, 18a-18d; 15′, 16′, 17′, 18′a-18′d) designed for passage by the contacts of the plug, and being disposed so as to be entrained in rotation by the plug, when the latter is locked on the base, from a given initial position of the discs so that only certain contact locations are exposed at the end of rotation, this initial position of the safety disc and of the complementary disc being locked by a locking system (19, 20, 23) which retracts when the plug is introduced into the base, characterised in that the locking system (19, 20, 23) only acts on the complementary disc (11, 11′) while immobilising means (25, 25′) are provided between the complementary disc (11, 11′) and the safety disc (10, 10′) so that the latter can be immobilised in a plurality of pre-determined angular positions relative to the complementary disc (11, 11′) so that the safety disc (10, 10′) can be given an initial position at will by acting on said immobilising means (25, 25′).
  2. Device according to claim 1, characterised in that at least one part of the immobilising means is visible on the upper face of the safety disc (10, 10′) so that this visible part, as a function of its position on the disc, indicates the nature of the current for which the device is set up since said current depends on the initial position of the safety disc.
  3. Device according to one of claims 1 and 2, characterised in that the immobilising means comprise a detent (25, 25′) mounted in a fixed angular position in the complementary disc (11, 11′) and drawn by elastic means (27, 29) towards the safety disc (10, 10′) in order to cooperate with holes (26a-26f and 26′a-26′f) formed in the latter so as to be able to immobilise the two discs in relation to one another in a plurality of identifiable relative angular positions, while said detent (25, 25′) may be retracted at will by acting on it against its elastic means, in order to modify the relative initial position of the safety disc in relation to the complementary disc and hence in relation to the base.
  4. Device according to claim 3, characterised in that the support (4) for contacts of the base comprises a housing (28) designed to receive a portion of said detent (25′) when the latter is retracted from the hole in the safety disc (10) in which it is located, when it is desired to modify the relative position of the discs.
  5. Device according to claim 3, characterised in that the detent (25′) is entirely disposed in the complementary disc (11′) in which it can be retracted.
  6. Device according to claim 5, characterised in that the detent (25′) is disposed at the end of a lever (29) forming a spring.
  7. Device according to one of claims 3 to 6, characterised in that the safety disc (10) takes the form of a cover provided with a peripheral rim (13) turned towards the base and which covers the complementary disc (11) while the holes for the detent (25) take the form of openings (26a-26d).
  8. Device according to one of claims 3 to 6, characterised in that the complementary disc (11′) is provided with a peripheral rim (14) turned in the opposite direction to the base and in which the safety disc (10′) is housed, while the holes for the detent (25′) take the form of notches (26′a-26′d) formed on the periphery of said safety disc.
  9. Device according to one of claims 1 to 8, characterised in that the complementary disc (11, 11′) and the support (4) for contacts of the base are provided with interacting means to allow a relative pivoting range of the one in relation to the other, limited between the initial and final connection positions respectively of the plug in the base, this pivoting range corresponding as a result to the angle of rotation provided for rotational locking and unlocking of the casings of said plug and of said base.
  10. Device according to claim 9, characterised in that the interacting means for limiting the pivoting range comprise a projection (30) provided on the complementary disc (11, 11′) or respectively the support (4) for contacts of the base designed to co-operate with a recess (31) corresponding, in the length of the arc of a circle, to the desired range and which is formed on the support (4) for contacts of the base or respectively the complementary disc (11, 11′).
  11. Device according to one of claims 1 to 10, in which the safety disc (10′) and the complementary disc (11′) each exhibit a central opening (17′, 15′) designed for passage of the pin of the earth contact, characterised in that the central opening (17′) of the safety disc is extended by a tubular element (12) which passes through the central opening (15′) of the complementary disc in order to be engaged inside the insulating support (4) and hold the discs.
EP92402311A 1991-08-21 1992-08-20 Selective device for electrical connection provided with a security disc and a complementary disc Expired - Lifetime EP0528735B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9110479A FR2680608B1 (en) 1991-08-21 1991-08-21 SELECTIVE DEVICE FOR ELECTRICAL CONNECTION PROVIDED WITH A SAFETY DISC AND A COMPLEMENTARY DISC.
FR9110479 1991-08-21

Publications (2)

Publication Number Publication Date
EP0528735A1 EP0528735A1 (en) 1993-02-24
EP0528735B1 true EP0528735B1 (en) 1995-04-12

Family

ID=9416310

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92402311A Expired - Lifetime EP0528735B1 (en) 1991-08-21 1992-08-20 Selective device for electrical connection provided with a security disc and a complementary disc

Country Status (9)

Country Link
US (1) US5234350A (en)
EP (1) EP0528735B1 (en)
JP (1) JPH05217645A (en)
AU (1) AU659178B2 (en)
CA (1) CA2075362A1 (en)
DE (1) DE69202027T2 (en)
ES (1) ES2072117T3 (en)
FR (1) FR2680608B1 (en)
MX (1) MX9204809A (en)

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Also Published As

Publication number Publication date
ES2072117T3 (en) 1995-07-01
FR2680608B1 (en) 1993-10-08
DE69202027T2 (en) 1995-08-24
US5234350A (en) 1993-08-10
AU2076292A (en) 1993-03-25
EP0528735A1 (en) 1993-02-24
AU659178B2 (en) 1995-05-11
FR2680608A1 (en) 1993-02-26
JPH05217645A (en) 1993-08-27
CA2075362A1 (en) 1993-02-22
MX9204809A (en) 1993-02-01
DE69202027D1 (en) 1995-05-18

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