EP0586359B1 - Automatic disengagement of plugs inserted in electrical sockets - Google Patents

Automatic disengagement of plugs inserted in electrical sockets Download PDF

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Publication number
EP0586359B1
EP0586359B1 EP93870183A EP93870183A EP0586359B1 EP 0586359 B1 EP0586359 B1 EP 0586359B1 EP 93870183 A EP93870183 A EP 93870183A EP 93870183 A EP93870183 A EP 93870183A EP 0586359 B1 EP0586359 B1 EP 0586359B1
Authority
EP
European Patent Office
Prior art keywords
socket
plug
cable
control member
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
Application number
EP93870183A
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German (de)
French (fr)
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EP0586359A1 (en
Inventor
Stéphane Marie André d'Alayer de Costemore d'Arc
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Staar SA
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Staar SA
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Publication date
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Publication of EP0586359A1 publication Critical patent/EP0586359A1/en
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Publication of EP0586359B1 publication Critical patent/EP0586359B1/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
    • H01R13/62—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
    • 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

Definitions

  • the present invention relates to plugs, electrical sockets and relates more particularly to a device automatically ensuring the disengagement or uncoupling of such a plug from the electrical outlet in which it is positioned, and this, following a movement or a force applied to said record or one of its elements.
  • any electrical plug associated with an appliance is very often subjected to significant efforts, in particular by means of the electric cable connecting them, when the user wishes to disengage it from the electrical outlet in which it is positioned.
  • the standards in force in practically all countries, covering both plugs and sockets, impose a minimum separation force to remove a plug from a corresponding socket.
  • the user uses a greater separation force and, for reasons of convenience, applies it to the cable rather than to the plug with the consequence that the conductors are stretched, damaged. or even broken, causing a great risk of short circuit and / or electric shock.
  • Belgian patent BE-A-100 4 372 of the applicant describes a mechanical device facilitating the disengagement of an electrical plug from a socket by proposing a thrust member mounted between said plug and said socket, actuated by a mounted control element on the plug or on the socket and having an appropriate gear reduction in order to reduce the effort required.
  • this device greatly reduces the risk of short-circuit and / or electrocution, it requires the presence of the user near the plug-socket connection to be actuated.
  • American patent 4,045,106 proposes an automatic disengagement system, controlled remotely by the cable, but without reduction of the effort to be supplied, so that the user must provide an effort at least equal to the minimum separation force for arm the device which does not provide any advantage.
  • the proposed system requires that the cable passes through a sleeve forming an appropriate angle with the support of the plug, which complicates the production thereof while being operative only if the cable is moved laterally.
  • the proposed device very significantly increases the dimensions of the standard plug with which it is associated since it slides inside a housing.
  • the spring ensuring the disengagement movement impedes the actuation of this movement so that a stable limit, minimum to this actuation cannot be easily guaranteed and a fortiori adjusted at the discretion of the manufacturer.
  • the torsional movement of the conductors relative to their attachment can only weaken the latter.
  • the object of the present invention is to remedy the aforementioned drawbacks by proposing simple, effective and reliable means for automatically ensuring the disengagement of a plug from the socket in which it has been positioned, when an element of the plug undergoes displacement. or the electric cable to which the plug is connected undergoes a given minimum traction.
  • a second object of the invention is to ensure that, when actuated by the cable, the disengagement control remains operational regardless of the angle that the cable takes relative to the axis of symmetry of the plug. and especially when they are coaxial.
  • Another object of the invention is to ensure that these means hardly increase the size of the plug, especially from the point of view of diameter.
  • Another object of the invention is to ensure that these means can be easily implemented by any user, that is to say that their use is simple and does not require any particular effort.
  • Another object of the invention is to propose means for which the trigger threshold is fairly precise and easily adjustable.
  • Another object of the invention is to propose means applicable to any file approved by the standards in force.
  • Another object of the invention is to prevent any insertion of a plug fitted with such disengagement means into an electrical outlet in the event that the latter is not in the operative position.
  • Another object of the invention is to propose means that are easy to mass produce and of a limited number so as to allow easy and rapid assembly.
  • Another object is to propose means making it possible to connect the conductors of a cable to the contact pins as usual in any standard removable plug.
  • Another object of the invention is to propose means which, once assembled, cannot be easily dismantled by a user.
  • Another object of the invention is to propose means actuated by a tensile force applied to the electric cable.
  • the device which is the subject of the invention is here incorporated into an electrical plug 1 and in particular a plug meeting the various standards in force in European countries.
  • This sheet 1 comprises, like any standard sheet, a support 10, a lateral surface of revolution or housing 14, and further, in accordance with the invention, a control handle 30, a trigger system 50 (FIGS. 4, 5) and at least one pushing member 70.
  • the removable support 10 comprises the contact pins 12 (earth included) to which the conductors of a standard electric cable 90 are connected and is fixed to the housing 14 by a screw 16.
  • the housing 14 is of substantially cylindrical shape and its peripheral surface located near the support 10 meets the required standards; in particular two guide rails 18 are provided. At its other end, the housing 14 allows the passage of the cable 90.
  • housings 20 intended to receive and guide movable pushing members 70.
  • the length of the displacement of these in the housings corresponds substantially to the length of the contact pins 12.
  • a control handle 30, also of cylindrical shape, is mounted coaxially on the housing 14 and is guided in rotation by means of at least two pins 32, 34 cooperating with a groove 22 formed at the periphery of the housing 14.
  • the shapes of the exterior surfaces of the housing 14 and interior of the control handle 30 provide a chamber 40 in which are accommodated elastic means 42, for example a spiral spring, attached respectively to the housing 14 and to the control handle 30 of such so that one of these elements, for example the control handle 30, is rotated under or against the action of these elastic means while the other, for example the housing 14, is held stationary .
  • elastic means 42 for example a spiral spring
  • the inner surface of the control handle 30 also includes two helical grooves 36 intended to trap a stud 72 carried by each pushing member 70 in order to control its movement inside the housing 20 provided for this purpose. As shown in Figures 1 and 2, the length of the control handle 30 is such that it always covers part of the pushing members 70 so as to keep them in their respective housings.
  • control handle 30 in one direction or the other about its axis of symmetry ensures the displacement of the pushing members 70, either towards the support 10 or in the opposite direction.
  • FIGS. 4 to 6 show a trigger system 50, in the present case, linked to the cable 90 and acting on the control handle 30.
  • This trigger system 50 mainly comprises a body 52 connected to the support 10 via two oblong openings 54, through from which pass pins 11 forming part of the support 10.
  • the body 52 has a fixing or stopping system 56 provided with screws 58 making it possible to pinch the cable 90 as usual in any removable electrical plug.
  • the conductors 92 form a slight loop so as to allow the movement of the body 52 inside the housing 14 without any effort being imparted to their connection, made using a screw 13, on each contact pin 12.
  • the architecture of this trigger system 50 allows, when the support 10 is removed from the housing 14, its pivoting around the pins 11 freeing access to the screws 13 and thus facilitating the user connecting the conductors 92 to the contact pins 12.
  • the body 52 has a flexible tab 60 carrying a pawl 62 and two lateral guide surfaces 66 cooperating with profiles provided for this purpose in the interior surface of the housing 14 (see figure 6).
  • the device which is the subject of the invention is as shown in FIG. 1.
  • the pushing members 70 and more particularly their shoulders 74 prohibit the insertion of the plug into a socket.
  • corresponding 100 shown diagrammatically and partially in FIG. 2A because said shoulders 74, positioned outside the standardized profile of the support 10 and of the socket 100, abut on the external peripheral surface 102 of the socket 100 before the contact pins 12 can enter the body of the socket.
  • the object of the invention device is then in the position shown in Figures 2, 4 and 6, that is to say in the position called “armed”; the pawl 62 retaining the control handle 30 against the elastic means 42.
  • the pushing members 70 having been moved back, the plug 1 can then be completely inserted into a socket 100 (see FIG. 2A).
  • the device thus remains in this position as long as sufficient traction is not exerted on the cable.
  • the threshold of this traction is in particular determined by the characteristics of the elastic means 80, for example a spring, positioned between the bottom of the housing 14 and the trigger system 50 and maintaining the latter in the position shown in FIG. 4.
  • the pawl 62 disappears, thereby releasing the stud 32 and therefore the control handle 30 to the action of the elastic means 42 (FIG. 5).
  • the handle rotates around its axis of symmetry in the clockwise direction (view of the socket) and the grooves 36 force the pins 72 and therefore the pushing members 70 to move towards the support 10.
  • the shoulders 74 of said thrust members pressing on the external peripheral surface 102 of the socket 100 they remain stationary and therefore by reaction, it is the housing 14, the support 10 and the contact pins 12 which move away from the bottom of the socket 100 as indicated by the arrow F in the figure 2A.
  • the pushing members 70 At the end of movement, the pushing members 70 have returned to the position shown in FIG. 1 and the plug 1 is then completely disengaged from the electrical outlet 100 since the length of movement of the pushing members 70 corresponds to that of the pins contact 12.
  • these means can be made using rubber in order to protect the plug from splashing water or possibly make it waterproof depending on the type of device with which it is associated.
  • the elastic means 42 can be easily manipulated by any user and in the example described, their compression value is approximately one third of the value fixed by the standards to manually disengage a plug from a socket.
  • the profile and the periphery, preferably rounded, of the orifice made in the housing 14 for the passage of the cable allow actuation of the device up to an angle of about 80 ° between the cable and the axis of symmetry of the plug.
  • the housing 14 being of a diameter imposed by the standards, it is seen that the proposed arrangement makes it possible to obtain a plug of a length fairly close to those standard available on the market while the increase in diameter due to the handle of command 30 is only very limited and located at the rear end of the plug. This allows its easy use in so-called "multi-outlet” devices.
  • the support 10 is a removable standard support available on the market.
  • the support 10 and the housing 14 can advantageously be made completely integral.
  • the slots allowing the assembly of the different parts and in particular of the control handle 30 are located in places such that during movement they cannot be reached which prevents the user from being able to disassemble the together easily.
  • the triggering system Rather than linking the triggering system to the cable, it can easily be arranged so that it is actuated by a push button situated, for example, on the housing 14 of the plug.
  • the push button would act directly on the pawl 62, the element 50 remaining fixed; the triggering threshold then being provided by elastic means applied to the pawl 62 itself.
  • the device which is the subject of the invention is advantageously incorporated into the plug, it is advantageous for mobile vehicles for the device to be incorporated into the socket so that the disengagement takes place at the level of the mobile vehicle.
  • the electric cable connecting the vehicle to the current source advantageously remains linked to the latter and the presence of a socket (female) at the end of the cable prevents, after disengagement, that foreign bodies do not easily come into contact with live parts.

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

Abstract

A device automatically ensures the disengagement of an electrical plug (1) from a corresponding socket (100) when a force applied to them or to one of the elements, for example the cable (90), exceeds a given minimum value. It comprises an element (50) which can move between two positions: in the first position, the element (50) and, more particularly, a catch (62), keeps the actuation (drive) element (30) and the thrust members (70) associated therewith in opposition to the action of elastic means (42); in the second position, it releases the actuation element under the action of the said elastic means (42) which then provide a relative displacement between the plug (1) and the socket (100) in order to unmate them. The displacement of the element (50) subjected to the action of elastic means (80) is provided by the cable (90). <IMAGE>

Description

La présente invention se rapporte aux fiches, prises électriques et concerne plus particulièrement un dispositif assurant automatiquement le désengagement ou désaccouplement d'une telle fiche de la prise électrique dans laquelle elle est positionnée, et ce, suite à un mouvement ou une force appliqué à ladite fiche ou à l'un de ses éléments.The present invention relates to plugs, electrical sockets and relates more particularly to a device automatically ensuring the disengagement or uncoupling of such a plug from the electrical outlet in which it is positioned, and this, following a movement or a force applied to said record or one of its elements.

Il est bien connu que toute fiche électrique associée à un appareil est très souvent soumise à des efforts importants, notamment par l'intermédiaire du câble électrique les reliant, lorsque l'utilisateur souhaite la désengager de la prise électrique dans laquelle elle se trouve positionnée. En effet, les normes en vigueur dans pratiquement tous les pays et couvrant tant les fiches que les prises, imposent une force de séparation minimale pour retirer une fiche d'une prise correspondante. Or, bien souvent et même trop souvent, l'utilisateur met en oeuvre une force de séparation plus importante et, pour des raisons de facilité, l'applique sur le câble plutôt que sur la fiche avec pour conséquences que les conducteurs sont distendus, endommagés ou même cassés, ce qui provoque un grand risque de court-circuit et/ou d'électrocution. Dans d'autres cas et plus particulièrement lorsqu'il s'agit d'appareils portatifs et/ou mobiles, l'utilisateur essaie bien souvent d'aller le plus loin possible en tirant sur le câble plutôt que de brancher la fiche dans une prise plus proche, ou encore il essaie de déconnecter "à distance" l'appareil en tirant sur le câble ; ces deux opérations présentent les mêmes inconvénients et risques que ceux énumérés ci-dessus.It is well known that any electrical plug associated with an appliance is very often subjected to significant efforts, in particular by means of the electric cable connecting them, when the user wishes to disengage it from the electrical outlet in which it is positioned. The standards in force in practically all countries, covering both plugs and sockets, impose a minimum separation force to remove a plug from a corresponding socket. However, very often and even too often, the user uses a greater separation force and, for reasons of convenience, applies it to the cable rather than to the plug with the consequence that the conductors are stretched, damaged. or even broken, causing a great risk of short circuit and / or electric shock. In other cases and more particularly in the case of portable and / or mobile devices, the user often tries to go as far as possible by pulling on the cable rather than plugging in. the plug in a nearest outlet, or it tries to disconnect the device "remotely" by pulling on the cable; these two operations present the same drawbacks and risks as those listed above.

En outre, on constate que le désengagement répété de fiches d'une prise électrique affaiblit la fixation de cette dernière et produit également les mêmes inconvénients et risques.In addition, we note that the repeated disengagement of plugs from an electrical outlet weakens the fixing of the latter and also produces the same drawbacks and risks.

Le brevet belge BE-A-100 4 372 de la demanderesse décrit un dispositif mécanique facilitant le désengagement d'une fiche électrique d'une prise en proposant un organe de poussée monté entre ladite fiche et ladite prise, actionné par un élément de commande monté sur la fiche ou sur la prise et comportant une démultiplication appropriée afin de réduire l'effort requis. Cependant, si ce dispositif réduit grandement les risques de court-circuit et/ou d'électrocution, il nécessite la présence de l'utilisateur à proximité de la liaison fiche - prise pour être actionné.Belgian patent BE-A-100 4 372 of the applicant describes a mechanical device facilitating the disengagement of an electrical plug from a socket by proposing a thrust member mounted between said plug and said socket, actuated by a mounted control element on the plug or on the socket and having an appropriate gear reduction in order to reduce the effort required. However, if this device greatly reduces the risk of short-circuit and / or electrocution, it requires the presence of the user near the plug-socket connection to be actuated.

Le brevet américain 4.045.106 propose un système de désengagement automatique, commandé à distance par le câble, mais sans démultiplication de l'effort à fournir, si bien que l'utilisateur doit fournir un effort au moins égal à la force de séparation minimale pour armer le dispositif ce qui ne procure aucun avantage. D'autre part, le système proposé impose que le câble passe au travers d'un manchon formant un angle approprié avec le support de la fiche ce qui en complique la réalisation tout en n'étant opératif que si le câble est déplacé latéralement. De plus, le dispositif proposé augmente très sensiblement les dimensions de la fiche standard à laquelle il est associé puisque celle-ci coulisse à l'intérieur d'un boîtier. En outre, le ressort assurant le mouvement de désengagement gêne l'actionnement de ce mouvement si bien qu'une limite stable, minimum à cet actionnement ne peut être aisément garantie et à fortiori réglée au gré du fabricant. Enfin, le mouvement de torsion des conducteurs par rapport à leur fixation ne peut qu'affaiblir ces derniers.American patent 4,045,106 proposes an automatic disengagement system, controlled remotely by the cable, but without reduction of the effort to be supplied, so that the user must provide an effort at least equal to the minimum separation force for arm the device which does not provide any advantage. On the other hand, the proposed system requires that the cable passes through a sleeve forming an appropriate angle with the support of the plug, which complicates the production thereof while being operative only if the cable is moved laterally. In addition, the proposed device very significantly increases the dimensions of the standard plug with which it is associated since it slides inside a housing. In addition, the spring ensuring the disengagement movement impedes the actuation of this movement so that a stable limit, minimum to this actuation cannot be easily guaranteed and a fortiori adjusted at the discretion of the manufacturer. Finally, the torsional movement of the conductors relative to their attachment can only weaken the latter.

Le but de la présente invention est de remédier aux inconvénients précités en proposant des moyens simples, efficaces et fiables pour assurer automatiquement le désengagement d'une fiche de la prise dans laquelle elle a été positionnée, lorsqu'un élément de la fiche subit un déplacement ou le câble électrique auquel la fiche est reliée subit une traction minimale donnée.The object of the present invention is to remedy the aforementioned drawbacks by proposing simple, effective and reliable means for automatically ensuring the disengagement of a plug from the socket in which it has been positioned, when an element of the plug undergoes displacement. or the electric cable to which the plug is connected undergoes a given minimum traction.

Un second but de l'invention est de faire en sorte que, lors de l'actionnement par le câble, la commande de désengagement reste opérationnelle quel que soit l'angle que prend le câble par rapport à l'axe de symétrie de la fiche et notamment lorsqu'ils sont coaxiaux.A second object of the invention is to ensure that, when actuated by the cable, the disengagement control remains operational regardless of the angle that the cable takes relative to the axis of symmetry of the plug. and especially when they are coaxial.

Un autre but de l'invention est de faire en sorte que ces moyens augmentent à peine la dimension de la fiche surtout au point de vue diamètre.Another object of the invention is to ensure that these means hardly increase the size of the plug, especially from the point of view of diameter.

Un autre but de l'invention est de faire en sorte que ces moyens puissent être facilement mis en oeuvre par tout utilisateur, c'est-à-dire que leur utilisation soit simple et ne nécessite aucun effort particulier.Another object of the invention is to ensure that these means can be easily implemented by any user, that is to say that their use is simple and does not require any particular effort.

Un autre but de l'invention est de proposer des moyens dont le seuil de déclenchement soit assez précis et facilement réglable.Another object of the invention is to propose means for which the trigger threshold is fairly precise and easily adjustable.

Un autre but de l'invention est de proposer des moyens applicables à toute fiche agréée par les standards en vigueur.Another object of the invention is to propose means applicable to any file approved by the standards in force.

Un autre but de l'invention est d'empêcher toute insertion dans une prise électrique d'une fiche munie de tels moyens de désengagement au cas où ces derniers ne seraient pas en position opérative.Another object of the invention is to prevent any insertion of a plug fitted with such disengagement means into an electrical outlet in the event that the latter is not in the operative position.

Un autre but de l'invention est de proposer des moyens faciles à produire en grande série et d'un nombre limité de façon à en permettre un assemblage aisé et rapide.Another object of the invention is to propose means that are easy to mass produce and of a limited number so as to allow easy and rapid assembly.

Un autre but est de proposer des moyens permettant de relier les conducteurs d'un câble aux broches de contact comme habituellement dans toute fiche démontable standard.Another object is to propose means making it possible to connect the conductors of a cable to the contact pins as usual in any standard removable plug.

Un autre but de l'invention est de proposer des moyens qui, une fois assemblés, ne peuvent être facilement démontés par un utilisateur.Another object of the invention is to propose means which, once assembled, cannot be easily dismantled by a user.

Un autre but de l'invention est de proposer des moyens actionnés par un effort de traction appliqué sur le câble électrique.Another object of the invention is to propose means actuated by a tensile force applied to the electric cable.

La réalisation de ces buts est obtenue par un dispositif selon la revendication principale.The achievement of these aims is obtained by a device according to the main claim.

D'autres avantages et particularités ressortiront de la description, donnée ci-après, d'un mode de réalisation de l'invention auquel des modifications peuvent être apportées sans pour autant sortir du cadre de l'invention et dans laquelle :

  • la figure 1 est une vue latérale du dispositif en position de repos,
  • la figure 2 est une vue similaire à la figure 1, le dispositif étant en position dite "armée" ou de fonctionnement,
  • la figure 2A est une vue en coupe partielle latérale d'une prise électrique murale montrant la profondeur d'engagement d'une fiche selon la figure 2.
  • la figure 3 est une vue de face du dispositif tel que représenté à la figure 2,
  • la figure 4 est une coupe partielle selon le plan de coupe A-A (figure 3) de certains éléments du dispositif représenté aux figures 2 et 3,
  • la figure 5 est similaire à la figure 4, le dispositif de désengagement étant en position opérative,
  • la figure 6 est un détail, vu de derrière, de certains éléments du dispositif représenté à la figure 4.
Other advantages and particularities will emerge from the description given below of an embodiment of the invention to which modifications can be made without departing from the scope of the invention and in which:
  • FIG. 1 is a side view of the device in the rest position,
  • FIG. 2 is a view similar to FIG. 1, the device being in the so-called "armed" or operating position,
  • FIG. 2A is a partial side sectional view of an electrical wall outlet showing the depth of engagement of a plug according to FIG. 2.
  • FIG. 3 is a front view of the device as shown in FIG. 2,
  • FIG. 4 is a partial section along the section plane AA (FIG. 3) of certain elements of the device shown in FIGS. 2 and 3,
  • FIG. 5 is similar to FIG. 4, the disengagement device being in the operative position,
  • FIG. 6 is a detail, seen from behind, of certain elements of the device shown in FIG. 4.

Pour faciliter la description et éviter de surcharger les figures, on n'a représenté sur celles-ci que les éléments essentiels à la compréhension de l'invention.To facilitate the description and avoid overloading the figures, only the essential elements for understanding the invention have been shown on them.

Comme montré, le dispositif objet de l'invention est ici incorporé à une fiche électrique 1 et notamment une fiche répondant aux différents standards en vigueur dans les pays d'Europe.As shown, the device which is the subject of the invention is here incorporated into an electrical plug 1 and in particular a plug meeting the various standards in force in European countries.

Cette fiche 1 comprend, comme toute fiche standard, un support 10, une surface latérale de révolution ou boîtier 14, et en outre, conformément à l'invention, une poignée de commande 30, un système de déclenchement 50 (figures 4, 5) et au moins un organe de poussée 70.This sheet 1 comprises, like any standard sheet, a support 10, a lateral surface of revolution or housing 14, and further, in accordance with the invention, a control handle 30, a trigger system 50 (FIGS. 4, 5) and at least one pushing member 70.

Le support 10, démontable, comprend les broches de contact 12 (terre comprise) auxquelles sont reliés les conducteurs d'un câble électrique 90 standard et est fixé au boîtier 14 par une vis 16.The removable support 10 comprises the contact pins 12 (earth included) to which the conductors of a standard electric cable 90 are connected and is fixed to the housing 14 by a screw 16.

Dans la réalisation ici décrite, le boîtier 14 est de forme sensiblement cylindrique et sa surface périphérique située à proximité du support 10 répond aux normes requises ; notamment deux rails de guidage 18 sont prévus. A son autre extrémité, le boîtier 14 permet le passage du câble 90.In the embodiment described here, the housing 14 is of substantially cylindrical shape and its peripheral surface located near the support 10 meets the required standards; in particular two guide rails 18 are provided. At its other end, the housing 14 allows the passage of the cable 90.

Conformément à l'invention, à la surface périphérique du boîtier 14 et de préférence à des endroits diamétralement opposés, sont prévus des logements 20 destinés à recevoir et guider des organes de poussée 70 mobiles. La longueur du déplacement de ceux-ci dans les logements correspond sensiblement à la longueur des broches de contact 12.According to the invention, on the peripheral surface of the housing 14 and preferably at diametrically opposite locations, there are housings 20 intended to receive and guide movable pushing members 70. The length of the displacement of these in the housings corresponds substantially to the length of the contact pins 12.

Une poignée de commande 30, également de forme cylindrique, est montée coaxialement sur le boîtier 14 et est guidée en rotation par l'intermédiaire d'au moins deux tétons 32, 34 coopérant avec une gorge 22 pratiquée à la périphérie du boîtier 14.A control handle 30, also of cylindrical shape, is mounted coaxially on the housing 14 and is guided in rotation by means of at least two pins 32, 34 cooperating with a groove 22 formed at the periphery of the housing 14.

L'engagement des tétons 32, 34 dans la gorge 22 se fait à l'aide de fentes longitudinales pratiquées dans le boîtier 14 mais non représentées aux figures.The engagement of the pins 32, 34 in the groove 22 is done using longitudinal slots made in the housing 14 but not shown in the figures.

Les formes des surfaces extérieure du boîtier 14 et intérieure de la poignée de commande 30 ménagent une chambre 40 dans laquelle sont logés des moyens élastiques 42, par exemple un ressort en spirale, attachés respectivement au boîtier 14 et à la poignée de commande 30 de telle façon que l'un de ces éléments, par exemple la poignée de commande 30, soit mis en rotation sous ou à l'encontre de l'action de ces moyens élastiques alors que l'autre, par exemple le boîtier 14, est maintenu immobile.The shapes of the exterior surfaces of the housing 14 and interior of the control handle 30 provide a chamber 40 in which are accommodated elastic means 42, for example a spiral spring, attached respectively to the housing 14 and to the control handle 30 of such so that one of these elements, for example the control handle 30, is rotated under or against the action of these elastic means while the other, for example the housing 14, is held stationary .

La surface intérieure de la poignée de commande 30 comporte également deux gorges hélicoïdales 36 destinées à emprisonner un téton 72 porté par chaque organe de poussée 70 afin d'en commander le déplacement à l'intérieur du logement 20 prévu à cet effet. Comme le montrent les figures 1 et 2, la longueur de la poignée de commande 30 est telle que celle-ci recouvre toujours une partie des organes de poussée 70 de façon à les maintenir dans leurs logements 20 respectifs.The inner surface of the control handle 30 also includes two helical grooves 36 intended to trap a stud 72 carried by each pushing member 70 in order to control its movement inside the housing 20 provided for this purpose. As shown in Figures 1 and 2, the length of the control handle 30 is such that it always covers part of the pushing members 70 so as to keep them in their respective housings.

Comme on le comprend maintenant, la rotation de la poignée de commande 30 dans un sens ou l'autre autour de son axe de symétrie assure le déplacement des organes de poussée 70, soit vers le support 10 soit en direction opposée.As will now be understood, the rotation of the control handle 30 in one direction or the other about its axis of symmetry ensures the displacement of the pushing members 70, either towards the support 10 or in the opposite direction.

Aux figures 4 à 6 on montre un système de déclenchement 50, dans le cas présent, lié au câble 90 et agissant sur la poignée de commande 30.FIGS. 4 to 6 show a trigger system 50, in the present case, linked to the cable 90 and acting on the control handle 30.

Ce système de déclenchement 50 comprend principalement un corps 52 relié au support 10 par l'intermédiaire de deux ouvertures 54 oblongues, au travers desquelles passent des tétons 11 faisant partie du support 10. A son autre extrémité, le corps 52 possède un système de fixation ou d'arrêt 56 muni de vis 58 permettant de retenir par pincement le câble 90 comme habituellement dans toute fiche électrique démontable. Ainsi que le montre la figure 4, les conducteurs 92 forment une légère boucle de façon à permettre le déplacement du corps 52 à l'intérieur du boîtier 14 sans qu'aucun effort ne soit imparti à leur connexion, réalisée à l'aide d'une vis 13, sur chaque broche de contact 12. L'architecture de ce système de déclenchement 50 permet, lorsque le support 10 est retiré du boîtier 14, son pivotement autour des tétons 11 dégageant l'accès aux vis 13 et facilitant ainsi à l'utilisateur la connexion des conducteurs 92 sur les broches de contact 12. Enfin, le corps 52 possède une patte flexible 60 portant un cliquet 62 et deux surfaces latérales de guidage 66 coopérant avec des profils prévus à cet effet dans la surface intérieure du boîtier 14 (voir figure 6).This trigger system 50 mainly comprises a body 52 connected to the support 10 via two oblong openings 54, through from which pass pins 11 forming part of the support 10. At its other end, the body 52 has a fixing or stopping system 56 provided with screws 58 making it possible to pinch the cable 90 as usual in any removable electrical plug. As shown in Figure 4, the conductors 92 form a slight loop so as to allow the movement of the body 52 inside the housing 14 without any effort being imparted to their connection, made using a screw 13, on each contact pin 12. The architecture of this trigger system 50 allows, when the support 10 is removed from the housing 14, its pivoting around the pins 11 freeing access to the screws 13 and thus facilitating the user connecting the conductors 92 to the contact pins 12. Finally, the body 52 has a flexible tab 60 carrying a pawl 62 and two lateral guide surfaces 66 cooperating with profiles provided for this purpose in the interior surface of the housing 14 (see figure 6).

En position de repos, le dispositif objet de l'invention est tel que représenté à la figure 1. De préférence, les organes de poussée 70 et plus particulièrement leurs épaulements 74 (voir figure 3) interdisent l'introduction de la fiche dans une prise correspondante 100 représentée schématiquement et partiellement à la figure 2A car lesdits épaulements 74, positionnés à l'extérieur du profil normalisé du support 10 et de la prise 100, viennent buter sur la surface périphérique externe 102 de la prise 100 avant que les broches de contact 12 puissent pénétrer dans le corps de la prise.In the rest position, the device which is the subject of the invention is as shown in FIG. 1. Preferably, the pushing members 70 and more particularly their shoulders 74 (see FIG. 3) prohibit the insertion of the plug into a socket. corresponding 100 shown diagrammatically and partially in FIG. 2A because said shoulders 74, positioned outside the standardized profile of the support 10 and of the socket 100, abut on the external peripheral surface 102 of the socket 100 before the contact pins 12 can enter the body of the socket.

Une rotation de la poignée de commande 30 par rapport au boîtier 14 dans le sens anti-horlogique (vue du côté du support 10), et ce à l'encontre des moyens élastiques 42 assure :

  • la rotation des gorges 36 et donc le déplacement des organes de poussée 70 vers le fond de la fiche 1,
  • la rotation du téton 32 dont la surface inclinée 33 fait fléchir la patte flexible 60 et permet donc le passage dudit téton 32 de l'autre côté du cliquet 62 (voir figure 6).
A rotation of the control handle 30 relative to the housing 14 in an anti-clockwise direction (seen from the side of the support 10), and this against the elastic means 42 ensures:
  • the rotation of the grooves 36 and therefore the displacement pushing members 70 towards the bottom of the plug 1,
  • the rotation of the stud 32 whose inclined surface 33 flexes the flexible tab 60 and therefore allows the passage of said stud 32 on the other side of the pawl 62 (see FIG. 6).

Le dispositif objet de l'invention se trouve alors dans la position représentée aux figures 2, 4 et 6, c'est-à-dire en position dite "armée" ; le cliquet 62 retenant la poignée de commande 30 à l'encontre des moyens élastiques 42.The object of the invention device is then in the position shown in Figures 2, 4 and 6, that is to say in the position called "armed"; the pawl 62 retaining the control handle 30 against the elastic means 42.

Les organes de poussée 70 ayant été reculés, la fiche 1 peut alors être totalement introduite dans une prise 100 (voir figure 2A).The pushing members 70 having been moved back, the plug 1 can then be completely inserted into a socket 100 (see FIG. 2A).

Le dispositif reste ainsi dans cette position aussi longtemps qu'une traction suffisante n'est pas exercée sur le câble. Le seuil de cette traction est notamment déterminé par les caractéristiques des moyens élastiques 80, par exemple un ressort, positionnés entre le fond du boîtier 14 et le système de déclenchement 50 et maintenant ce dernier dans la position représentée à la figure 4.The device thus remains in this position as long as sufficient traction is not exerted on the cable. The threshold of this traction is in particular determined by the characteristics of the elastic means 80, for example a spring, positioned between the bottom of the housing 14 and the trigger system 50 and maintaining the latter in the position shown in FIG. 4.

Lorsqu'une traction supérieure à ce seuil est exercée, le système de déclenchement 50 recule et la patte flexible 60, en rencontrant le plan incliné 15 formé dans le boîtier 14, pivote vers le bas (figure 5).When a traction greater than this threshold is exerted, the trigger system 50 moves back and the flexible tab 60, upon meeting the inclined plane 15 formed in the housing 14, pivots downward (FIG. 5).

De ce fait, le cliquet 62 s'efface libérant ainsi le téton 32 et donc la poignée de commande 30 à l'action des moyens élastiques 42 (figure 5). Puisque le support 10 et le boîtier 14 sont maintenus immobiles dans la prise 100, la poignée tourne autour de son axe de symétrie dans le sens horlogique (vue de la prise) et les gorges 36 forcent les tétons 72 et donc les organes de poussée 70 à se déplacer vers le support 10. Les épaulements 74 desdits organes de poussée s'appuyant sur la surface périphérique externe 102 de la prise 100, ils restent immobiles et donc par réaction, c'est le boîtier 14, le support 10 et les broches de contact 12 qui s'éloignent du fond de la prise 100 comme l'indique la flèche F à la figure 2A.As a result, the pawl 62 disappears, thereby releasing the stud 32 and therefore the control handle 30 to the action of the elastic means 42 (FIG. 5). Since the support 10 and the housing 14 are held stationary in the socket 100, the handle rotates around its axis of symmetry in the clockwise direction (view of the socket) and the grooves 36 force the pins 72 and therefore the pushing members 70 to move towards the support 10. The shoulders 74 of said thrust members pressing on the external peripheral surface 102 of the socket 100, they remain stationary and therefore by reaction, it is the housing 14, the support 10 and the contact pins 12 which move away from the bottom of the socket 100 as indicated by the arrow F in the figure 2A.

En fin de mouvement, les organes de poussée 70 sont revenus à la position représentée à la figure 1 et la fiche 1 est alors tout à fait désengagée de la prise électrique 100 puisque la longueur du déplacement des organes de poussée 70 correspond à celle des broches de contact 12.At the end of movement, the pushing members 70 have returned to the position shown in FIG. 1 and the plug 1 is then completely disengaged from the electrical outlet 100 since the length of movement of the pushing members 70 corresponds to that of the pins contact 12.

Par conséquent, une traction d'une intensité minimum donnée, appliquée seulement au câble, assure automatiquement le désengagement de la fiche 1 d'une prise 100.Consequently, a pull of a given minimum intensity, applied only to the cable, automatically ensures the disengagement of the plug 1 from a socket 100.

Cette intensité minimum dépendant des caractéristiques des moyens élastiques 80, il est très facile aux constructeurs d'adapter le seuil de déclenchement aux divers types de fiches, prises ou encore à l'utilisation faite des appareils (aspirateurs, cireuses, etc...) auxquels les fiches sont reliées.This minimum intensity depending on the characteristics of the elastic means 80, it is very easy for manufacturers to adapt the triggering threshold to the various types of plugs, sockets or even to the use made of the devices (vacuum cleaners, floor polishers, etc.) to which the files are linked.

Avantageusement, ces moyens peuvent être réalisés à l'aide de caoutchouc afin de protéger la fiche des projections d'eau ou la rendre éventuellement étanche selon le type d'appareil auquel elle est associée.Advantageously, these means can be made using rubber in order to protect the plug from splashing water or possibly make it waterproof depending on the type of device with which it is associated.

D'autre part, grâce à la démultiplication fournie par le pas des gorges 36, les moyens élastiques 42 peuvent être facilement manipulés par tout utilisateur et dans l'exemple décrit, leur valeur de compression est environ le tiers de la valeur fixée par les normes pour désengager manuellement une fiche d'une prise.On the other hand, thanks to the reduction provided by the pitch of the grooves 36, the elastic means 42 can be easily manipulated by any user and in the example described, their compression value is approximately one third of the value fixed by the standards to manually disengage a plug from a socket.

Le profil et la périphérie, de préférence arrondie, de l'orifice pratiqué dans le boîtier 14 pour le passage du câble permettent un actionnement du dispositif jusqu'à un angle d'environ 80° entre le câble et l'axe de symétrie de la fiche.The profile and the periphery, preferably rounded, of the orifice made in the housing 14 for the passage of the cable allow actuation of the device up to an angle of about 80 ° between the cable and the axis of symmetry of the plug.

Pour améliorer cette caractéristique et notamment permettre un désengagement lorsque l'angle est de 90° et même plus, il est recommandé d'utiliser une gaine 94 (figure 2) relativement souple (constituée de caoutchouc ou simplement d'un ressort) de façon à ce qu'elle procure au câble un rayon de courbure approprié. Par expérience, en fixant une gaine d'environ 50 mms de longueur, 5 mms d'épaisseur et/ou de profil conique, on a obtenu un déclenchement fiable du dispositif à des angles proches de 180° (câble parallèle à l'axe de symétrie de la fiche après le rayon de courbure et effort appliqué dans le sens opposé) sans augmentation sensible de l'effort de traction.To improve this characteristic and in particular allow disengagement when the angle is 90 ° and even more, it is recommended to use a relatively flexible sheath 94 (FIG. 2) (made of rubber or simply a spring) so that it gives the cable an appropriate radius of curvature. By experience, by fixing a sheath of about 50 mm in length, 5 mm in thickness and / or conical profile, a reliable triggering of the device was obtained at angles close to 180 ° (cable parallel to the axis of symmetry of the plug after the radius of curvature and force applied in the opposite direction) without appreciable increase in the tensile force.

Le boîtier 14 étant d'un diamètre imposé par les normes, on voit que la disposition proposée permet d'obtenir une fiche d'une longueur assez proche de celles standards disponibles sur le marché tandis que l'augmentation du diamètre due à la poignée de commande 30 n'est que très limitée et située à l'extrémité postérieure de la fiche. Cela permet son utilisation aisée dans des dispositifs dits "multi-prises".The housing 14 being of a diameter imposed by the standards, it is seen that the proposed arrangement makes it possible to obtain a plug of a length fairly close to those standard available on the market while the increase in diameter due to the handle of command 30 is only very limited and located at the rear end of the plug. This allows its easy use in so-called "multi-outlet" devices.

Dans l'exemple décrit, le support 10 est un support standard démontable et disponible sur le marché.In the example described, the support 10 is a removable standard support available on the market.

Comme on le constate, le nombre de pièces mises en oeuvre par le dispositif objet de l'invention est fort limité ce qui en facilite sensiblement l'assemblage.As can be seen, the number of parts used by the device which is the subject of the invention is very limited, which considerably facilitates assembly.

Pour des fiches entièrement moulées, c'est-à-dire non démontables, le support 10 et le boîtier 14 peuvent avantageusement être rendus totalement solidaires.For fully molded plugs, that is to say not removable, the support 10 and the housing 14 can advantageously be made completely integral.

D'autre part, les fentes permettant l'assemblage des différentes pièces et notamment de la poignée de commande 30 sont situées à des endroits tels qu'en cours de mouvement elles ne puissent être atteintes ce qui interdit à l'utilisateur de pouvoir démonter l'ensemble facilement.On the other hand, the slots allowing the assembly of the different parts and in particular of the control handle 30 are located in places such that during movement they cannot be reached which prevents the user from being able to disassemble the together easily.

Enfin, le déclenchement du dispositif étant commandé par une traction minimum exercée sur le câble électrique, celui-ci et donc ses conducteurs sont protégés contre toute élongation, déformation ou traction excessive risquant de les endommager.Finally, the triggering of the device being controlled by a minimum traction exerted on the electric cable, the latter and therefore its conductors are protected against any elongation, deformation or excessive traction liable to damage them.

Enfin, les épaulement 74 des organes de poussée 70 s'appuyant sur la surface périphérique externe 102 de la prise 100, celle-ci et plus particulièrement sa fixation n'est soumise à aucun effort particulier lors du désengagement d'une fiche.Finally, the shoulders 74 of the pushing members 70 resting on the external peripheral surface 102 of the socket 100, the latter and more particularly its fixing is not subjected to any particular effort when disengaging a plug.

Plutôt que de lier le système de déclenchement au câble, on peut faire aisément en sorte qu'il soit actionné par un bouton-poussoir situé, par exemple, sur le boîtier 14 de la fiche. Dans ce cas, le bouton poussoir agirait directement sur le cliquet 62, l'élément 50 restant fixe ; le seuil de déclenchement étant alors assuré par des moyens élastiques appliqués au cliquet 62 même.Rather than linking the triggering system to the cable, it can easily be arranged so that it is actuated by a push button situated, for example, on the housing 14 of the plug. In this case, the push button would act directly on the pawl 62, the element 50 remaining fixed; the triggering threshold then being provided by elastic means applied to the pawl 62 itself.

De même, on peut envisager de commander le déplacement de l'élément 50 ou du cliquet 62 par un organe séparé (par exemple, câble, levier,...) passant dans la gaine incorporant les conducteurs mais laissant ceux-ci tout à fait inertes lors de la mise en oeuvre de la commande de désengagement.Likewise, it is possible to envisage controlling the movement of the element 50 or of the pawl 62 by a separate member (for example, cable, lever, etc.) passing through the sheath incorporating the conductors but leaving them completely inert when implementing the disengage command.

Si pour les appareils électriques mobiles, le dispositif objet de l'invention est avantageusement incorporé à la fiche, il est intéressant pour des véhicules mobiles que le dispositif soit incorporé à la prise de façon à ce que le désengagement se fasse au niveau du véhicule mobile. Ainsi, le câble électrique reliant le véhicule à la source de courant reste avantageusement lié à celle-ci et la présence d'une prise (femelle) au bout du câble évite, après désengagement, que des corps étrangers ne viennent facilement en contact avec des éléments sous tension.If for mobile electrical devices, the device which is the subject of the invention is advantageously incorporated into the plug, it is advantageous for mobile vehicles for the device to be incorporated into the socket so that the disengagement takes place at the level of the mobile vehicle. . Thus, the electric cable connecting the vehicle to the current source advantageously remains linked to the latter and the presence of a socket (female) at the end of the cable prevents, after disengagement, that foreign bodies do not easily come into contact with live parts.

Claims (12)

  1. Device for ensuring the automatic separation of an electrical plug (1) from a fitting socket (100) comprising :
    - a support (10) including all contact elements (12),
    - an electric cable (90) connected to said contact elements,
    - a control member (30) connected to said support (10) for movement with respect to it and undergoing the influence of resilient means (42),
    - at least one thrust member (70) apt to be driven by the control member (30) towards the support (10) in order to rest against an outer surface of the socket (100) and allow separation of the plug (1) from said socket,
       characterized in that it further incorporates :
    an element (50, 62) mobile with respect to the control member (30) and cooperating with it so as to either, in a first position, hold it in an inoperative state or in a second position, release it to the influence of the resilient means (42), the movement of the control member (30) then powering the displacement of the thrust member (70) towards the outer surface of the socket and, by reaction, the separation of the plug (1) from said socket.
  2. Device according to claim 1, characterized in that the element (50) is linked to the cable (90) so that a pull of a minimum value exerted on the cable ensures its displacement from its first to its second position.
  3. Device according to claim 1, characterized in that the element (50) performs an axial translation movement with respect to the support (10).
  4. Device according to claim 1, characterized in that the element (50) includes a catch (60) cooperating with a stud (32) of the control member (30).
  5. Device according to claim 3, characterized in that said axial translation movement is ensured and guided by studs (11) penetrating elongated holes (54).
  6. Device according to claim 1, characterized in that the element (50, 62) undergoes the influence of resilient means (80).
  7. Device according to claim 1, characterized in that the opening allowing exit of the cable (90) incorporates a soft sheath located around said cable.
  8. Device according to claim 1, characterized in that the control member (30) is axially mounted with respect to the support (10) and performs a rotational movement.
  9. Device according to claim 1, characterized in that the resilient means (42) are made of a coil spring.
  10. Device according to claim 1, characterized in that the thrust member (70) is located inbetween and guided by the lateral surface (14) of the support (10) and the control member (30).
  11. Device according to claim 1, characterized in that a shoulder (74) provided on the thrust member (70) prevents any introduction of a plug equipped with said device into a fitting socket (100) as long as not set in operative position.
  12. Device according to claim 1, characterized in that the link (36, 72) inbetween the control member (30) and the thrust member (70) provides a mechanical advantage of the torque to be applied to set the control member (30) in operative or cocked position against the action of the resilient means (42).
EP93870183A 1992-09-02 1993-09-01 Automatic disengagement of plugs inserted in electrical sockets Expired - Lifetime EP0586359B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE9200777 1992-09-02
BE9200777A BE1006139A3 (en) 1992-09-02 1992-09-02 Automatic disengagement sheets electrical.

Publications (2)

Publication Number Publication Date
EP0586359A1 EP0586359A1 (en) 1994-03-09
EP0586359B1 true EP0586359B1 (en) 1996-05-22

Family

ID=3886424

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93870183A Expired - Lifetime EP0586359B1 (en) 1992-09-02 1993-09-01 Automatic disengagement of plugs inserted in electrical sockets

Country Status (6)

Country Link
EP (1) EP0586359B1 (en)
JP (1) JPH06196223A (en)
AT (1) ATE138505T1 (en)
BE (1) BE1006139A3 (en)
DE (1) DE69302780T2 (en)
ES (1) ES2087706T3 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2720867B1 (en) * 1994-06-03 1996-07-26 Serge Thiebaud Mechanical safety device for the transmission of electric current.
DE102017114958A1 (en) * 2017-07-05 2019-01-10 Norbert Höllerer SEPARATION MECHANISM FOR A CONNECTOR SOCKET OR PLUG
KR102321355B1 (en) * 2020-02-06 2021-11-03 주식회사 이오플러그 An Electric Plug
SE544885C2 (en) * 2021-05-18 2022-12-20 Relez Ab A power plug disconnection device and assembly
CA3203099A1 (en) * 2021-02-04 2022-08-11 Stefan RAMBERG A power plug disconnection device and assembly

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4045106A (en) * 1976-02-17 1977-08-30 Borg John P Automatic electrical plug release
DE3923498A1 (en) * 1989-07-15 1991-01-17 Jakob Bahmer Flax prepn. - has breaker to extract wood matter after de-seeding and before alignment for bundling
BE1004372A3 (en) * 1990-08-16 1992-11-10 Staar Sa Extraction device of an electric current form.

Also Published As

Publication number Publication date
DE69302780D1 (en) 1996-06-27
JPH06196223A (en) 1994-07-15
EP0586359A1 (en) 1994-03-09
ATE138505T1 (en) 1996-06-15
DE69302780T2 (en) 1996-10-02
BE1006139A3 (en) 1994-05-24
ES2087706T3 (en) 1996-07-16

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