EP0473562B1 - Extraction device for an electric plug - Google Patents
Extraction device for an electric plug Download PDFInfo
- Publication number
- EP0473562B1 EP0473562B1 EP91870124A EP91870124A EP0473562B1 EP 0473562 B1 EP0473562 B1 EP 0473562B1 EP 91870124 A EP91870124 A EP 91870124A EP 91870124 A EP91870124 A EP 91870124A EP 0473562 B1 EP0473562 B1 EP 0473562B1
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- EP
- European Patent Office
- Prior art keywords
- plug
- socket
- control member
- pull
- support
- 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
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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
- H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
- H01R13/629—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances
- H01R13/633—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances for disengagement only
- H01R13/635—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances for disengagement only by mechanical pressure, e.g. spring force
Definitions
- plugs are commonly used for household appliances such as vacuum cleaners, fryer, robot, etc.
- Document US 4,045,106 describes a device comprising a receptacle in two parts, one of which is movable, and inside which a plug can slide axially under the influence of a spring located in and resting on the fixed part of the receptacle. The rotation of the movable part of the receptacle releases the spring which causes the extraction of the plug.
- a third object of the invention is to provide a single command making it possible to extract the electric current plug from the socket cooperating with it, and with ergonomics such that the user is not tempted to grasp the electric cable.
- a fourth object is to propose an electrical current plug provided with an extraction means according to the invention, which is housed in existing electrical current sockets and therefore does not require any fundamental or costly modification.
- a fifth aim is to propose a means of extracting an electrical current plug which can be easily mounted on existing plugs.
- a sixth aim of the invention is to propose a file provided with the device according to the invention, using standard elements and already approved by the various security and / or standardization organizations so as to avoid administrative approval procedures.
- the device which is the subject of the invention is characterized by the content of the main claim.
- a plug 8 provided with the extraction device according to the invention, mainly comprises four parts: a body 10, a support 12, a ring-shaped pushing member 30 and a control element 50.
- a standard card comprises a support 12 and a body 10.
- the body 10 which is substantially cylindrical, has a shape and a profile such that it can be introduced into any standard socket, especially in EEC countries, and adapts to the support 12 on which the electric current conductors 18 are fixed ensuring the transmission of electrical energy and a so-called "earth" connection 14.
- a screw 16 secures the support 12 to said body 10.
- the support is a standard part approved by all the safety and / or standardization organizations.
- an opening 22 ensures the passage of an electric cable 23 connected to the conductors 18 and to the connection of "Earth" 14.
- a pawl 11 is located axially on the rear face of the body 10 also comprising a stud 21 and the guide rails 20 have a groove 24 in which a spring 26 is embedded to ensure after the 'actuation of the extraction device, the return of the ring 30 and the control handle 52 in their inoperative position.
- the ring 30 is guided by said body 10 so as to obtain an axial relative movement between said ring 30 and said body 10, and in particular comprises two diametrically opposed profiles 32 as well as two guide grooves 38 on its internal surface which each trap a guide rail 20.
- a stud 36 is incorporated at the bottom of each of the guide grooves 38 to cooperate with the corresponding spring 26.
- an opening 34 allows the lateral passage of the electric cable 23.
- the movable control element 50 comprises a control handle 52, a cover 54 while a cutout 56 made in the cover 54 ensures the passage of the electric cable 23 when the latter leaves laterally.
- Two cams 60 placed in diametrically opposite manner close to the internal surface of the cover 54 cooperate with the two diametrically opposed profiles 32 of the ring 30. These cams have an inclination of approximately 30 °.
- a circular groove 58 is intended to receive the pawl 11 to secure said control element 50 and the body 10 and prevent any subsequent disassembly, which is desired by certain standards.
- the internal surface 51 of the control element 50 comprises an annular depression 53 cooperating with the stud 21 to limit the movement of the control element 50.
- FIG. 2 the housing of a standard electrical outlet 70 fixed in a wall. It includes a protective plate 71, two sockets or contact clamps 72 under permanent voltage, used to trap the electric current conductors 18 of a standard plug and a pin 74 representing the "earth" and fitting into the connection 14 made in the support 12 of any electrical plug.
- FIG. 3 there is shown the housing of a standard electrical outlet in which is fitted an electrical current plug such as shown in FIG. 1.
- the conductors 18 are trapped in the sockets 72, while the front surface 40 of the ring 30 is in the immediate vicinity of the flange 80 of the protective plate 71 of the housing. the power outlet.
- the distance between the end of the rim 80 of the protective plate 71 and the front surface of the support 12 when the plug 8 is positioned in the socket 70 remains the same regardless of the type of socket used (visible, recessed, flying socket, etc.) because it is standardized.
- the rim 80 has a standardized shape and profile so that the socket housing 70 accepts only plugs which meet the standards in force.
- the user connects the device which he wishes to use, provided with the electric current plug according to the invention, as he usually does, simply by fully inserting the plug 8 in socket 70.
- the withdrawal of the current plug thanks to the device which is the subject of the invention, requires only a minimum of effort and at no time can the user tear off the plug or the electric cable.
- the cutout 56 of the control element 50 is of course dimensioned such that at no time, during the rotation of the handle 52, the cover 54 does not interfere with the electric cable 23.
- a sheet 8 provided with the device which is the subject of the invention does not require any particular approval since it incorporates standard elements such as the support 12 which are standardized and approved by all the organizations concerned.
- the device which is the subject of the invention not only facilitates the extraction of plugs but simultaneously it guarantees greater safety for the user and since the front surface 40 of the ring 30 rests on the socket 70, it eliminates any tearing force transmitted to the electrical socket, thus ensuring the immobility of the latter, of the contact sockets, of the electrical conductors and of its mounting housing.
- the prototype sheet 8 described above includes a standard support 12 approved by all the European organizations concerned; the internal volume of the body 10 corresponds to the volume provided by any existing plug for housing, connection and fixing of the electric cable; finally the ring-shaped thrust member 30 and the handle 52 of the control element 50 are of a diameter such that the plugs according to the invention can easily be placed side by side in strips, double grip or multiple and be removed using the device object of the invention without any discomfort or interference.
- the length of the ring 30 is such that at the end of movement of the control element 50 for the extraction of the plug 8, the conductors 18 are entirely disengaged from the contact sockets or clamps 72; thus the plug 8 is completely separate from the socket 70.
- a central and coaxial opening allows the passage of the electric cable.
- the pawl now and guiding the handle is located at the periphery of this opening.
- the handle 52 is also provided with an axial opening 59 ( Figure 4).
- the plug comprises a substantially cylindrical support 112 and acting as a body 10; the device object of the invention comprising two parts, namely a ring-shaped pushing member 130 which is concentric and in contact with the outer surface of the support 112 itself, and a control element 150, which is concentric and precisely adjusted around the rear section of the ring 130.
- the front surface 140 of the ring 130 is close to the front face of the support 112 and therefore of the bottom surface 73 of the socket 70.
- Guide ribs are present on the external surface of the support 112 and cooperate with guide grooves on the internal surface of the ring 130 to allow relative axial movement between the ring 130 and the support 112.
- springs are placed inside the guide ribs and cooperate with pins placed inside the ring 130.
- Two diametrically opposed cams 160 are also placed near the cover 154 of the control element 150 and cooperate with the profiles 132 of the ring 130.
- the standard guide rails imposed by certain standards are themselves provided on the outer surface of the ring 130.
- a retainer 163 makes the element of control 150 secured to the support 112 while allowing them a relative rotational movement.
- Nipples 121 are also provided on the internal surface of the control element 150 and cooperate with annular depressions 153 formed in the rear face of the support 112 to limit the rotary movement of the control element 150, preferably around 90 °.
- the cable leaves the socket axially and for this, an axial opening 159 is provided in the control element 150.
- the cams 160 preferably have an angle of 30 ° to provide a mechanical advantage and a force ratio of about 3: 1 and thus allow easy removal of the plug by a user by turning the control element with only hand force.
- the device object of the invention ensures the extraction of an electrical plug while exerting on the socket housing an opposite force so as to keep this socket stationary and therefore avoid any possibility of tearing. On the other hand, no traction is exerted at any time on the electric cable.
- the embodiments described relate to plugs for domestic use (NBN C 61-112-1 / CEB standards) but it should be noted that the device which is the subject of the invention can be applied to any other type of plug and in particular prototypes have been produced for those implemented in the United States and Great Britain, as well as for plugs for industrial use, such as those covered by the IEC 309-2 standards.
- the preferred angle of the cams is of the order of 30 °, this angle can of course vary depending on the particular application and the extraction force to be produced. In practice, for the various prototypes produced, this angle varies between 20 ° and 40 ° depending on the desired displacement and the force required.
- the angle of the surfaces of the cams and of the associated profiles is straight, these surfaces can be curved so that the manual force exerted during the withdrawal of a grip is practically constant.
- the surface is slightly inclined in its first half, corresponding to the force required for the withdrawal of the conductors from the grip of the sockets and which requires significant effort, while it is more inclined in the second half of its movement, which corresponds to the final removal of the plug from the taken, and therefore to a less significant effort.
- the socket 70 is always shown fixed in a wall, it should be noted that it can be independent (case of electrical extension cords), the device object of the invention retaining all its advantages .
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- Details Of Connecting Devices For Male And Female Coupling (AREA)
- Connector Housings Or Holding Contact Members (AREA)
- Manufacturing Of Electrical Connectors (AREA)
Abstract
Description
La présente invention se rapporte aux fiches de courant électrique et concerne plus particulièrement un dispositif permettant d'extraire aisément une telle fiche d'une prise de courant électrique standard dans laquelle elle a été positionnée.The present invention relates to electrical current plugs and relates more particularly to a device for easily extracting such a plug from a standard electrical outlet in which it has been positioned.
Pour la clarté et la compréhension aisée de la présente invention, on convient d'appeler :
- prise de courant : l'élément comprenant les douilles ou pinces de contact généralement sous tension permanente ; cet élément constitue la partie dite "femelle" d'un connecteur et qui est généralement fixée au mur ;
- fiche de courant : l'élément relié à l'appareil et comprenant les broches conductrices que l'on introduit dans les douilles ou pinces de contact pour assurer l'alimentation de l'appareil ; cet élément constitue la partie dite "mâle" d'un connecteur.
- socket-outlet: the element comprising the sockets or contact clips generally under permanent tension; this element constitutes the so-called "female" part of a connector and which is generally fixed to the wall;
- current plug: the element connected to the appliance and comprising the conductive pins which are inserted into the contact sockets or clamps to supply the appliance with power; this element constitutes the so-called "male" part of a connector.
Il est bien connu que les fiches ordinaires, bien qu'étant faciles à introduire dans une prise standard, sont par contre difficiles à extraire d'une telle prise. En effet, le seul moyen procuré à l'utilisateur est d'agripper la fiche par son extrémité comportant généralement le fil de courant électrique pour la tirer dans sa direction.It is well known that ordinary plugs, although being easy to insert into a standard socket, are however difficult to extract from such a socket. Indeed, the only means provided to the user is to grip the plug by its end generally comprising the electric current wire to pull it in its direction.
On comprend bien les difficultés de l'utilisateur : celui-ci n'a que peu d'appui pour exercer sa force et la surface de préhension de la fiche est relativement limitée ; en outre, l'ouverture des douilles ou l'écartement des pinces demeure constante pour assurer en permanence un contact électrique franc tandis que le diamètre des broches augmente en fonction de l'ampérage pour accroître les surfaces de contact entre les douilles ou pinces et les broches ; ceci pour éviter tout échauffement. On comprend donc aisément que l'extraction des fiches devienne de plus en plus difficile en fonction de l'augmentation de l'ampérage.We understand the difficulties of the user: he has little support to exert his force and the grip surface of the plug is relatively limited; in addition, the opening of the sockets or the spacing of the clamps remains constant to permanently ensure a frank electrical contact while the diameter of the pins increases according to the amperage to increase the contact surfaces between the sockets or clamps and the pins; this to avoid overheating. It is therefore easy to understand that the extraction of the cards becomes more and more difficult depending on the increase in amperage.
Or, de telles fiches (ampérage de 4 à 10 Ampères) sont couramment utilisées pour des appareils ménagers tels qu'aspirateurs, friteuse, robot, etc...However, such plugs (amperage from 4 to 10 Amps) are commonly used for household appliances such as vacuum cleaners, fryer, robot, etc.
De ce fait, lorsque l'utilisateur veut retirer une telle fiche, il a tendance à exercer le maximum de force sur la fiche sans retenir la prise, ce qui a le plus souvent pour effet d'arracher quelque peu la prise coopérant avec la fiche que l'on désire extraire.Therefore, when the user wants to remove such a plug, he tends to exert maximum force on the plug without retaining the plug, which most often has the effect of tearing the plug somewhat cooperating with the plug that we want to extract.
Force est de constater qu'après avoir retiré plusieurs fois une telle fiche d'une prise, soit la prise est arrachée de son support, soit le câble électrique est arraché de la fiche, avec tous les inconvénients et notamment le risque d'électrocution qui en découlent.It is clear that after having removed such a plug from a socket several times, either the plug is torn from its support, or the electric cable is torn from the plug, with all the disadvantages and in particular the risk of electric shock which resulting.
On constate généralement que pour des jeunes ou des personnes âgées, l'extraction d'une fiche, même de faible ampérage, est une opération délicate.It is generally observed that for young people or the elderly, extracting a plug, even with a low amperage, is a delicate operation.
Tenant compte de l'utilisation abondante des fiches ordinaires du type décrit ci-dessus, il s'avère souhaitable de proposer un dispositif simple et efficace d'emploi, assurant pour un minimum d'effort l'extraction en toute sécurité d'une fiche de courant électrique de la prise standard dans laquelle elle a été positionnée, et ce, sans aucun dommage ni pour la prise ni pour la fiche et le câble qui y est connecté.Taking into account the abundant use of ordinary cards of the type described above, it is desirable to propose a simple and effective device for use, ensuring for a minimum of effort the safe extraction of a card current from the standard outlet in which it was positioned, without any damage to the outlet or the plug and cable connected to it.
Un tel dispositif aurait également l'avantage d'éliminer tout risque d'électrocution que court tout utilisateur qui arracherait la prise de courant ou le câble électrique en s'efforçant d'extraire une fiche.Such a device would also have the advantage of eliminating any risk of electric shock for any user who tears off the socket or the electric cable while trying to extract a plug.
Le document US 4,045,106 décrit un dispositif comportant un réceptacle en deux parties, dont l'une est mobile, et à l'intérieur desquelles une fiche peut coulisser axialement sous l'influence d'un ressort situé dans et s'appuyant sur la partie fixe du réceptacle. La rotation de la partie mobile du réceptacle libère le ressort qui provoque l'extraction de la fiche.Document US 4,045,106 describes a device comprising a receptacle in two parts, one of which is movable, and inside which a plug can slide axially under the influence of a spring located in and resting on the fixed part of the receptacle. The rotation of the movable part of the receptacle releases the spring which causes the extraction of the plug.
Etant donné que la fiche doit pouvoir se déplacer de la position d'introduction vers la position d'extraction à l'intérieur du réceptacle en deux parties, l'encombrement de ce dernier est très important limitant ainsi les applications et montrant un aspect esthétique peu attrayant.Since the plug must be able to move from the insertion position to the extraction position inside the receptacle in two parts, the size of the latter is very large thus limiting the applications and showing an aesthetic appearance little attractive.
En outre, l'extraction de la fiche dépend entièrement de la force du ressort utilisé.In addition, the extraction of the plug depends entirely on the force of the spring used.
Le but de la présente invention est donc de remédier aux inconvénients précités en proposant un moyen simple, fiable et économique pour extraire une fiche de courant électrique en évitant tout arrachement de la prise dans laquelle elle a été positionnée et/ou du câble électrique.The object of the present invention is therefore to remedy the aforementioned drawbacks by proposing a simple, reliable and economical means for extracting an electric current plug while avoiding any tearing of the socket in which it has been positioned and / or of the electric cable.
Un second but de l'invention est de fournir l'agrément d'une commande simple et douce d'emploi.A second object of the invention is to provide the approval of a simple and easy-to-use command.
Un troisième but de l'invention est de fournir une commande unique permettant d'extraire la fiche de courant électrique de la prise coopérant avec elle, et d'une ergonomie telle que l'utilisateur ne soit pas tenté de saisir le câble électrique.A third object of the invention is to provide a single command making it possible to extract the electric current plug from the socket cooperating with it, and with ergonomics such that the user is not tempted to grasp the electric cable.
Un quatrième but est de proposer une fiche de courant électrique munie d'un moyen d'extraction selon l'invention, se logeant dans les prises de courant électrique existantes et donc ne nécessitant aucune modification fondamentale ou coûteuse.A fourth object is to propose an electrical current plug provided with an extraction means according to the invention, which is housed in existing electrical current sockets and therefore does not require any fundamental or costly modification.
Un cinquième but est de proposer un moyen d'extraction de fiche de courant électrique pouvant être facilement monté sur des fiches existantes.A fifth aim is to propose a means of extracting an electrical current plug which can be easily mounted on existing plugs.
Un sixième but de l'invention est de proposer une fiche munie du dispositif selon l'invention, utilisant des éléments standards et déjà approuvés par les divers organismes de sécurités et/ou normalisation de façon à éviter des procédures administratives d'approbation.A sixth aim of the invention is to propose a file provided with the device according to the invention, using standard elements and already approved by the various security and / or standardization organizations so as to avoid administrative approval procedures.
En vue de la réalisation de ces buts, le dispositif objet de l'invention est caractérisé par le contenu de la revendication principale.With a view to achieving these aims, the device which is the subject of the invention is characterized by the content of the main claim.
Divers avantages de l'invention ressortiront de la description détaillée de modes de réalisation préférés donnés, ci-après, à titre non limitatif et pour lesquels :
- la figure 1 représente, en vue éclatée, les principaux éléments constitutifs d'un dispositif d'extraction appliqué, selon un premier mode de réalisation de l'invention, à une fiche de courant électrique,
- la figure 2 représente, en coupe, une prise de courant électrique standard vue de dessus et fixée dans une paroi,
- la figure 3 représente une fiche de courant électrique selon la figure 1 introduite dans la prise de courant standard représentée à la figure 2,
- la figure 4 est semblable à la figure 3 mais représente la fiche de courant électrique, déboîtée de la prise après actionnement du dispositif d'extraction,
- la figure 5 est semblable à la figure 3 et représente une variante d'exécution du dispositif d'extraction appliquée à une fiche de courant,
- la figure 6 est semblable à la figure 4 et représente la variante d'exécution de la figure 5.
- FIG. 1 represents, in exploded view, the main constituent elements of an extraction device applied, according to a first embodiment of the invention, to an electrical current plug,
- FIG. 2 represents, in section, a standard electrical outlet seen from above and fixed in a wall,
- FIG. 3 represents an electrical current plug according to FIG. 1 inserted into the standard socket outlet shown in FIG. 2,
- FIG. 4 is similar to FIG. 3 but shows the electrical current plug, disengaged from the socket after actuation of the extraction device,
- FIG. 5 is similar to FIG. 3 and represents an alternative embodiment of the extraction device applied to a current plug,
- FIG. 6 is similar to FIG. 4 and represents the alternative embodiment of FIG. 5.
Sur ces figures, on n'a représenté, dans un but de clarté, que les éléments nécessaires à la compréhension de l'invention et les éléments identiques portent les mêmes références.In these figures, for the sake of clarity, only the elements necessary for understanding the invention and the identical elements have been given the same references.
Comme le montre la figure 1, une fiche 8, munie du dispositif d'extraction selon l'invention, comporte principalement quatre pièces : un corps 10, un support 12, un organe de poussée en forme d'anneau 30 et un élément de commande 50. Pour comparaison, une fiche standard comprend un support 12 et un corps 10.As shown in FIG. 1, a
Le corps 10, sensiblement cylindrique, possède une forme et un profil tels qu'il puisse être introduit dans toute prise standard notamment dans les pays de la CEE et s'adapte au support 12 sur lequel sont fixés les conducteurs de courant électriques 18 assurant la transmission d'énergie électrique et une connexion dite de "terre" 14. Une vis 16 solidarise le support 12 audit corps 10. Il est à noter que le support est une pièce standard approuvée par tous les organismes de sécurité et/ou normalisation. A la périphérie du corps 10, on trouve deux rails de guidage standards 20 diamétralement opposés de part et d'autre dudit corps 10. Enfin, une ouverture 22 assure le passage d'un câble électrique 23 relié aux conducteurs 18 et à la connexion de "terre" 14. Conformément à l'invention, un cliquet 11 est situé axialement sur la face arrière du corps 10 comportant également un téton 21 et les rails de guidage 20 comportent une gorge 24 dans laquelle un ressort 26 est encastré pour assurer après l'actionnement du dispositif d'extraction, le retour de l'anneau 30 et de la poignée de commande 52 dans leur position inopérative.The
L'anneau 30 est guidé par ledit corps 10 de façon à obtenir un mouvement relatif axial entre ledit anneau 30 et ledit corps 10, et comprend notamment deux profils 32 diamétralement opposés ainsi que deux rainures de guidage 38 sur sa surface interne qui emprisonnent chacune un rail de guidage 20. Un téton 36 est incorporé au fond de chacune des rainures de guidage 38 pour coopérer avec le ressort 26 correspondant. Enfin, une ouverture 34 permet le passage latéral du câble électrique 23.The
L'élément de commande 50 mobile comprend une poignée de commande 52, un cache 54 tandis qu'une découpe 56 pratiquée dans le cache 54 assure le passage du câble électrique 23 lorsque celui-ci sort latéralement. Deux cames 60 placées de manière diamétralement opposée à proximité de la surface interne du cache 54 coopèrent avec les deux profils 32 diamétralement opposés de l'anneau 30. Ces cames possèdent une inclinaison d'environ 30°.The
Une gorge circulaire 58 est destinée à recevoir le cliquet 11 pour solidariser ledit élément de commande 50 et le corps 10 et prévenir tout démontage ultérieur, ce qui est souhaité par certaines normes.A
D'autre part, la surface interne 51 de l'élément de commande 50 comporte une dépression annulaire 53 coopérant avec le téton 21 pour limiter le mouvement de l'élément de commande 50.On the other hand, the
On a représenté à la figure 2, en coupe, le boîtier d'une prise 70 de courant électrique standard fixée dans une paroi. Elle comprend une plaquette de protection 71, deux douilles ou pinces de contact 72 sous tension permanente, servant à emprisonner les conducteurs de courant électrique 18 d'une fiche standard et une broche 74 représentant la "terre" et s'encastrant dans la connexion 14 pratiquée dans le support 12 de toute fiche électrique.There is shown in Figure 2, in section, the housing of a standard
A la figure 3 on a représenté le boîtier d'une prise de courant électrique standard dans laquelle est emboîtée une fiche de courant électrique telle que représentée à la figure 1. Comme on le remarque aisément, les conducteurs 18 sont emprisonnés dans les douilles 72, tandis que la surface frontale 40 de l'anneau 30 est à proximité immédiate du rebord 80 de la plaquette de protection 71 du boîtier de la prise de courant.In Figure 3 there is shown the housing of a standard electrical outlet in which is fitted an electrical current plug such as shown in FIG. 1. As can easily be seen, the
Il est d'ailleurs intéressant de relever que la distance entre l'extrémité du rebord 80 de la plaquette de protection 71 et la surface avant du support 12 lorsque la fiche 8 est positionnée dans la prise 70, reste identique quel que soit le type de prise utilisé (prise apparente, encastrée, volante, etc...) car elle est normalisée.It is also interesting to note that the distance between the end of the
Le rebord 80 a une forme et un profil normalisés de telle sorte que le boîtier de la prise 70 n'accepte que des fiches répondant aux normes en vigueur.The
D'une manière purement pratique, l'utilisateur raccorde l'appareil qu'il désire utiliser, muni de la fiche de courant électrique selon l'invention, comme il a l'habitude de le faire, simplement en introduisant à fond la fiche 8 dans la prise 70.In a purely practical way, the user connects the device which he wishes to use, provided with the electric current plug according to the invention, as he usually does, simply by fully inserting the
Grâce au dispositif d'extraction objet de l'invention, lorsque l'utilisateur désire retirer la fiche 8 de la prise 70, il lui suffit de tourner la poignée de commande 52 d'un quart de tour vers la gauche (comme indiqué par la flèche F1 aux figures 1 et 4) ; au cours de ce mouvement, les cames 60 solidaires de l'élément de commande 50 coopèrent avec les profils 32 situés sur l'anneau 30 exerçant une force axiale entre la prise 70 et la fiche 8.Thanks to the extraction device which is the subject of the invention, when the user wishes to remove the
Cette force axiale a tout d'abord pour effet, si besoin en est, de déplacer et positionner la surface frontale 40 de l'anneau 30 contre le rebord 80 de la plaquette de protection 71 qui sert alors d'épaulement. Le mouvement de l'anneau 30 étant alors limité, la poursuite du mouvement de rotation de la poignée 52 assure le déplacement axial du corps 10 et du support 12 par rapport à l'anneau 30 qui est immobile et donc le retrait de l'ensemble "support (12) - corps 10" de la fiche 8 (flèche F2 figure 4) du boîtier de la prise 70.This axial force firstly has the effect, if necessary, of displacing and positioning the
Ainsi qu'on le constate, le retrait de la fiche de courant, grâce au dispositif objet de l'invention, ne demande qu'un minimum d'effort et à aucun moment l'utilisateur ne peut arracher la prise ou le câble électrique.As can be seen, the withdrawal of the current plug, thanks to the device which is the subject of the invention, requires only a minimum of effort and at no time can the user tear off the plug or the electric cable.
La découpe 56 de l'élément de commande 50 est bien entendu dimensionnée de telle sorte qu'à aucun moment, lors de la rotation de la poignée 52, le cache 54 n'interfère avec le câble électrique 23.The
D'autre part, une fiche 8 munie du dispositif objet de l'invention ne nécessite aucune approbation particulière puisqu'elle incorpore des éléments standards tels le support 12 qui sont normalisés et approuvés par tous les organismes concernés.On the other hand, a
Ainsi qu'on le constate, le dispositif objet de l'invention, non seulement facilite l'extraction de fiches mais simultanément il garantit une plus grande sécurité à l'utilisateur et puisque la surface frontale 40 de l'anneau 30 s'appuie sur la prise 70, il élimine toute force d'arrachement transmise à la prise électrique, assurant ainsi l'immobilité de celle-ci, des douilles de contact, des conducteurs électriques et de son boîtier d'encastrement.As can be seen, the device which is the subject of the invention not only facilitates the extraction of plugs but simultaneously it guarantees greater safety for the user and since the
En outre, aucune traction n'est exercée sur le câble électrique 23 lors de l'extraction de la fiche de courant, ce qui est également un gage supplémentaire de sécurité.In addition, no traction is exerted on the
D'autre part, selon les mesures effectuées, si l'extraction d'une fiche standard de 10 ampères requiert en moyenne une force comprise entre 4 et 5 kilos, la même fiche munie du dispositif objet de l'invention est retirée de la prise à l'aide d'une force moyenne de 1,5 kilo.In addition, according to the measurements carried out, if the extraction of a standard plug of 10 amps requires on average a force ranging between 4 and 5 kilos, the same plug provided with the device object of the invention is withdrawn from the catch using an average force of 1.5 kilo.
Le prototype de fiche 8 décrit ci-dessus comporte un support 12 standard approuvée par tous les organismes européens concernés ; le volume intérieur du corps 10 correspond au volume procuré par toute fiche existante pour le logement, le raccordement et la fixation du câble électrique ; enfin l'organe de poussée en forme d'anneau 30 et la poignée 52 de l'élément de commande 50 sont d'un diamètre tel que des fiches selon l'invention peuvent aisément être placées côte à côte dans des réglettes, prise doubles ou multiples et en être retirées à l'aide du dispositif objet de l'invention sans la moindre gêne ou interférence.The
De manière avantageuse, la longueur de l'anneau 30 est telle qu'en fin de mouvement de l'élément de commande 50 pour l'extraction de la fiche 8, les conducteurs 18 sont entièrement dégagés des douilles ou pinces de contact 72 ; ainsi la fiche 8 est totalement séparée de la prise 70.Advantageously, the length of the
Plutôt que de prévoir une sortie latérale du câble électrique, comme représenté sur la fiche 8 à la figure 1, il est tout aussi possible de prévoir une sortie axiale, généralement souhaitée pour les rallonges électriques.Rather than providing a lateral outlet for the electrical cable, as shown on
Dans ce cas, à la hauteur du cliquet 11 et de la gorge circulaire 58, une ouverture centrale et coaxiale permet le passage du câble électrique. Le cliquet maintenant et guidant la poignée est situé à la périphérie de cette ouverture. Bien entendu, la poignée 52 est également munie d'une ouverture axiale 59 (figure 4).In this case, at the height of the
Le support 12 étant une pièce normalisée et donc standard, on peut facilement mettre sur le marché le dispositif d'extraction constitué de l'assemblage des pièces 10, 30 et 50, à savoir le corps, l'anneau et l'élément de commande, l'utilisateur devant alors simplement retirer le support 12 du corps existant et le fixer dans cet assemblage à l'aide de la vis 16.The
Aux figures 5 et 6 on a représenté une variante du dispositif d'extraction dans laquelle la surface frontale 140 de l'organe de poussée vient s'appuyer sur le fond de la prise électrique, permettant ainsi de proposer une fiche munie du dispositif d'extraction ayant le même diamètre extérieur qu'une fiche.In Figures 5 and 6 there is shown a variant of the extraction device in which the
Dans cette réalisation, la fiche comporte un support 112 sensiblement cylindrique et faisant office de corps 10 ; le dispositif objet de l'invention comprenant deux pièces, à savoir un organe de poussée en forme d'anneau 130 qui est concentrique et en contact avec la surface extérieure du support 112 lui-même, et un élément de commande 150, qui est concentrique et précisément ajusté autour de la section arrière de l'anneau 130. Dans cette réalisation, quand la fiche est totalement insérée dans le boîtier de la prise 70 (figure 5), la surface avant 140 de l'anneau 130 se trouve à proximité de la face avant du support 112 et donc de la surface de fond 73 de la prise 70.In this embodiment, the plug comprises a substantially
Des nervures de guidage sont présentes sur la surface extérieure du support 112 et coopèrent avec des rainures de guidage sur la surface interne de l'anneau 130 pour permettre un mouvement axial relatif entre l'anneau 130 et le support 112. Comme dans le premier mode de réalisation, des ressorts sont placés à l'intérieur des nervures de guidage et coopèrent avec des tétons placés à l'intérieur de l'anneau 130. Deux cames diamétralement opposées 160 sont également placées à proximité du cache 154 de l'élément de commande 150 et coopèrent avec les profils 132 de l'anneau 130.Guide ribs are present on the external surface of the
Les rails de guidage standards imposés par certaines normes sont eux prévus à la surface extérieure de l'anneau 130.The standard guide rails imposed by certain standards are themselves provided on the outer surface of the
Un dispositif de retenue 163 rend l'élément de commande 150 solidaire du support 112 tout en leur autorisant un mouvement de rotation relatif. Des tétons 121 sont également prévus sur la surface interne de l'élément de commande 150 et coopèrent avec des dépressions annulaires 153 pratiquées dans la face arrière du support 112 pour limiter le mouvement rotatif de l'élément de commande 150, de préférence à environ 90°.A retainer 163 makes the element of
Quand l'élément de commande 150 est tourné, à l'aide de la poignée 152 (flèche F1 - figure 6), une force est générée par la pression de l'anneau 130 sur la surface de fond 73 de la prise 70 et une force égale mais opposée est générée par les cames et les profils, dans la direction F2 assurant le retrait de la fiche et donc des conducteurs 18 des douilles de contact 72 de la prise 70. De cette façon, le support 112 est déplacé axialement d'une distance assurant l'extraction complète des conducteurs 18 et permettant donc à la fiche et à l'élément de commande d'être facilement retirés de la prise.When the
Dans ce mode de réalisation de l'invention, le câble sort de la prise axialement et pour cela, une ouverture axiale 159 est prévue dans l'élément de commande 150.In this embodiment of the invention, the cable leaves the socket axially and for this, an
Comme dans le premier mode de réalisation, les cames 160 ont de préférence un angle de 30° pour apporter un avantage mécanique et un rapport de force d'environ 3:1 et ainsi permettre le retrait aisé de la fiche par un utilisateur en tournant l'élément de commande avec la seule force de la main.As in the first embodiment, the
Comme on le comprend aisément à l'aide de ces modes de réalisation préférés, le dispositif objet de l'invention assure l'extraction d'une fiche électrique tout en exerçant sur le boîtier de la prise une force opposée de façon à maintenir cette prise immobile et donc lui éviter toute possibilité d'arrachement. D'autre part, aucune traction n'est exercée à aucun moment sur le câble électrique.As can easily be understood using these preferred embodiments, the device object of the invention ensures the extraction of an electrical plug while exerting on the socket housing an opposite force so as to keep this socket stationary and therefore avoid any possibility of tearing. On the other hand, no traction is exerted at any time on the electric cable.
Les modes de réalisation décrits se rapportent à des fiches pour usage domestique (normes NBN C 61-112-1/CEB) mais il faut noter que le dispositif objet de l'invention peut s'appliquer à tout autre type de fiche et notamment des prototypes ont été réalisés pour celles mises en oeuvre aux Etats-Unis, en Grande-Bretagne, ainsi que pour les fiches à usage industriel, telles celles couvertes par les normes IEC 309-2.The embodiments described relate to plugs for domestic use (NBN C 61-112-1 / CEB standards) but it should be noted that the device which is the subject of the invention can be applied to any other type of plug and in particular prototypes have been produced for those implemented in the United States and Great Britain, as well as for plugs for industrial use, such as those covered by the IEC 309-2 standards.
Bien que l'angle préféré des cames soit de l'ordre de 30°, cet angle peut bien entendu varier selon l'application particulière et la force d'extraction à produire. En pratique, pour les différents prototypes réalisés, cet angle varie entre 20° et 40° en fonction du déplacement voulu et de la force requise.Although the preferred angle of the cams is of the order of 30 °, this angle can of course vary depending on the particular application and the extraction force to be produced. In practice, for the various prototypes produced, this angle varies between 20 ° and 40 ° depending on the desired displacement and the force required.
Il est à noter qu'avec le dispositif objet de l'invention, les normes de maintien des conducteurs sont toutes respectées et que c'est la seule extraction des fiches qui est grandement facilitée.It should be noted that with the device which is the subject of the invention, the standards for maintaining the conductors are all respected and that it is the only extraction of the plugs which is greatly facilitated.
De plus, tandis que dans les réalisations décrites, l'angle des surfaces des cames et des profils associés est droit, ces surfaces peuvent être curvilignes pour que la force manuelle exercée lors du retrait d'une prise soit pratiquement constante. Dans ce cas, la surface est peu inclinée dans sa première moitié, correspondant à la force requise pour le retrait des conducteurs de l'emprise des douilles et qui requiert un effort important, alors qu'elle est plus inclinée dans la seconde moitié de son mouvement, qui correspond au retrait final de la fiche de la prise, et donc à un effort moins important.In addition, while in the embodiments described, the angle of the surfaces of the cams and of the associated profiles is straight, these surfaces can be curved so that the manual force exerted during the withdrawal of a grip is practically constant. In this case, the surface is slightly inclined in its first half, corresponding to the force required for the withdrawal of the conductors from the grip of the sockets and which requires significant effort, while it is more inclined in the second half of its movement, which corresponds to the final removal of the plug from the taken, and therefore to a less significant effort.
D'autre part, si dans la description ci-dessus la prise 70 est toujours représentée fixée dans une paroi, il faut noter qu'elle peut être indépendante (cas des rallonges électriques), le dispositif objet de l'invention conservant tous ses avantages.On the other hand, if in the above description the
Claims (7)
- Device for pulling out an electric plug (8) inserted in a matching socket (70), said device being associated to the plug (8) constituted of a combination "body (10) - support (12-112)", said support bearing contact pins (18), said body provided with an opening allowing passage of an electric cable connected to the contact pins (18) and including a pull-out member able to exert a force on the plug so that it performs a relative axial movement and a control member cooperating with the pull-out member so that actuation of said control member ensures said relative axial movement and thus the pull-out of the plug from the socket,
characterized in that
the pull-out member is made of a thrust member having the shape of a ring (30, 130) peripheral to the body (10) of the plug (8) and of which one end presses against the socket (70) in which the plug (8) is inserted while its other end comprises means (32) associated with the control member (50, 150) via ramps (60) so that rotation of the latter powers a relative axial movement of the body (10) through the thrust member via guiding elements (20, 38) ensuring then the pull-out of the contact pins (18) of the plug (8) from the electric holders or clips of the socket (70). - Device according to claim 1, characterized in that the control member (50, 150) is fastened to the combination "body (10) - support (12,112)" of the plug (8).
- Device according to claim 1, characterized in that the guiding elements (20, 38) are located on the body (10) of the plug (8) and/or the thrust member (30, 130) and ensure an axial movement of the body (10) through said member (30, 130) which stays stationary.
- Device according to claim 1, characterized in that an opening (34, 56, 159) is provided in the thrust member (30, 130) and/or the control member (50, 150) to allow passage of the cable (23) connected to the contact pins (18).
- Device according to anyone of the preceding claims, characterized in that it includes resilient means (26) acting on the thrust member (30, 130) and/or the control member (50, 150) so as to force them back in inoperative position.
- Device according to anyone of the preceding claims, characterized in that the means converting the rotating movement of the control member (50, 150) into an axial movement of the plug through the thrust member (30, 130) comprises ramps (32, 60) providing a reduction of the torque to apply on the control member.
- Device according to anyone of the preceding claims, characterized in that the thrust member (30, 130) and the control member (50, 150) are mounted on standard approved elements such as the bodies (10) or supports (12) of plugs (8) so that the combination then provided replaces said standard approved elements.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP94111084A EP0623975B1 (en) | 1990-08-16 | 1991-08-14 | Extraction device for an electrical plug |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BE9000790A BE1004372A3 (en) | 1990-08-16 | 1990-08-16 | Extraction device of an electric current form. |
BE9000790 | 1990-08-16 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP94111084.3 Division-Into | 1994-07-16 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0473562A1 EP0473562A1 (en) | 1992-03-04 |
EP0473562B1 true EP0473562B1 (en) | 1995-03-08 |
Family
ID=3884900
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP91870124A Expired - Lifetime EP0473562B1 (en) | 1990-08-16 | 1991-08-14 | Extraction device for an electric plug |
EP94111084A Expired - Lifetime EP0623975B1 (en) | 1990-08-16 | 1991-08-14 | Extraction device for an electrical plug |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP94111084A Expired - Lifetime EP0623975B1 (en) | 1990-08-16 | 1991-08-14 | Extraction device for an electrical plug |
Country Status (7)
Country | Link |
---|---|
US (1) | US5171291A (en) |
EP (2) | EP0473562B1 (en) |
JP (1) | JPH04233175A (en) |
AT (2) | ATE134461T1 (en) |
BE (1) | BE1004372A3 (en) |
DE (2) | DE69117309T2 (en) |
ES (2) | ES2083885T3 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10143219A1 (en) * | 2001-09-04 | 2003-03-20 | Heinrich Kopp Ag, 63796 Kahl | Adapter for use with an electrical mains supply plug, has springs and angled track between two rings to aid removal of adapter from socket |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE1006139A3 (en) * | 1992-09-02 | 1994-05-24 | Staar Sa | Automatic disengagement sheets electrical. |
US5480313A (en) * | 1992-09-02 | 1996-01-02 | Staar S.A. | Automatic disconnect mechanism for electrical terminal fittings |
US5429516A (en) * | 1994-05-05 | 1995-07-04 | Staar S.A. | Electrical plug-socket adaptor with disconnect mechanism |
US5447443A (en) * | 1994-05-20 | 1995-09-05 | Ramah; Gary J. | Revolving electrical plug removal actuator |
US5938466A (en) * | 1995-08-09 | 1999-08-17 | Sumitomo Wiring Systems, Ltd. | Connector device having spring mechanism |
HUP9800607A1 (en) * | 1998-03-19 | 1999-11-29 | László Sándor | Electric plug |
US7138103B2 (en) | 1998-06-22 | 2006-11-21 | Immunomedics, Inc. | Use of bi-specific antibodies for pre-targeting diagnosis and therapy |
US6165002A (en) * | 1998-12-30 | 2000-12-26 | Garmin Corporation | Electrical connector apparatus |
US6364675B1 (en) | 2000-12-06 | 2002-04-02 | Bonnie Brauer | Electrical connector with tension disconnect |
AT410617B (en) * | 2001-04-18 | 2003-06-25 | Martin Burian | Releasing or pull-out device for electrical plug connections |
US6773289B1 (en) * | 2003-11-25 | 2004-08-10 | Allis Electric Co., Ltd. | Electrical plug mechanism and electrical receptacle for electrical cell |
US7101215B2 (en) * | 2004-03-31 | 2006-09-05 | Hewlett-Packard Development Company, L.P. | Cable plug retention clip |
US9531124B2 (en) | 2014-12-10 | 2016-12-27 | Leo Ohler | Electrical plug removal device |
US9905956B2 (en) * | 2015-12-22 | 2018-02-27 | Biosense Webster (Israel) Ltd. | Preventing unwanted contact between terminals |
DE102020114197B3 (en) | 2020-05-27 | 2021-08-05 | REVONEER GmbH | Protective housing for electrical plugs |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2161353A (en) * | 1937-04-30 | 1939-06-06 | Hummel Henry | Electric plug |
US2551382A (en) * | 1950-01-17 | 1951-05-01 | Herbert F Lindsay | Rotatably released electric plug |
GB1138364A (en) * | 1965-04-30 | 1969-01-01 | Plessey Co Ltd | Improvements in or relating to mechanical coupling means, more particularly for the coupling of two electrical connector members |
US4042292A (en) * | 1975-08-11 | 1977-08-16 | Chensky Frank T | Wall plate structure |
US4045106A (en) * | 1976-02-17 | 1977-08-30 | Borg John P | Automatic electrical plug release |
HU208882B (en) * | 1991-05-03 | 1994-01-28 | Prodax Kft | Receptactle with ejector work for connecting electric consumer |
-
1990
- 1990-08-16 BE BE9000790A patent/BE1004372A3/en not_active IP Right Cessation
-
1991
- 1991-08-14 JP JP3228651A patent/JPH04233175A/en active Pending
- 1991-08-14 EP EP91870124A patent/EP0473562B1/en not_active Expired - Lifetime
- 1991-08-14 AT AT94111084T patent/ATE134461T1/en not_active IP Right Cessation
- 1991-08-14 AT AT91870124T patent/ATE119714T1/en not_active IP Right Cessation
- 1991-08-14 DE DE69117309T patent/DE69117309T2/en not_active Expired - Lifetime
- 1991-08-14 EP EP94111084A patent/EP0623975B1/en not_active Expired - Lifetime
- 1991-08-14 US US07/744,510 patent/US5171291A/en not_active Expired - Lifetime
- 1991-08-14 ES ES94111084T patent/ES2083885T3/en not_active Expired - Lifetime
- 1991-08-14 DE DE69107937T patent/DE69107937T2/en not_active Expired - Fee Related
- 1991-08-14 ES ES91870124T patent/ES2071972T3/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10143219A1 (en) * | 2001-09-04 | 2003-03-20 | Heinrich Kopp Ag, 63796 Kahl | Adapter for use with an electrical mains supply plug, has springs and angled track between two rings to aid removal of adapter from socket |
Also Published As
Publication number | Publication date |
---|---|
EP0473562A1 (en) | 1992-03-04 |
ES2071972T3 (en) | 1995-07-01 |
DE69107937D1 (en) | 1995-04-13 |
EP0623975B1 (en) | 1996-02-21 |
US5171291A (en) | 1992-12-15 |
BE1004372A3 (en) | 1992-11-10 |
DE69107937T2 (en) | 1995-07-13 |
DE69117309T2 (en) | 1996-07-11 |
DE69117309D1 (en) | 1996-03-28 |
EP0623975A2 (en) | 1994-11-09 |
ES2083885T3 (en) | 1996-04-16 |
EP0623975A3 (en) | 1994-12-28 |
ATE119714T1 (en) | 1995-03-15 |
ATE134461T1 (en) | 1996-03-15 |
JPH04233175A (en) | 1992-08-21 |
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