EP0174246B1 - Locking device for the operation of an electrical apparatus with manual operation - Google Patents

Locking device for the operation of an electrical apparatus with manual operation Download PDF

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Publication number
EP0174246B1
EP0174246B1 EP85401648A EP85401648A EP0174246B1 EP 0174246 B1 EP0174246 B1 EP 0174246B1 EP 85401648 A EP85401648 A EP 85401648A EP 85401648 A EP85401648 A EP 85401648A EP 0174246 B1 EP0174246 B1 EP 0174246B1
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EP
European Patent Office
Prior art keywords
locking
wing
manual control
wings
plane
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
Application number
EP85401648A
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German (de)
French (fr)
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EP0174246A1 (en
Inventor
Daniel Nourry
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Telemecanique SA
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Telemecanique Electrique SA
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Publication date
Application filed by Telemecanique Electrique SA filed Critical Telemecanique Electrique SA
Publication of EP0174246A1 publication Critical patent/EP0174246A1/en
Application granted granted Critical
Publication of EP0174246B1 publication Critical patent/EP0174246B1/en
Expired legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/20—Interlocking, locking, or latching mechanisms
    • H01H9/28—Interlocking, locking, or latching mechanisms for locking switch parts by a key or equivalent removable member
    • H01H9/281—Interlocking, locking, or latching mechanisms for locking switch parts by a key or equivalent removable member making use of a padlock
    • H01H9/282—Interlocking, locking, or latching mechanisms for locking switch parts by a key or equivalent removable member making use of a padlock and a separate part mounted or mountable on the switch assembly and movable between an unlocking position and a locking position where it can be secured by the padlock
    • H01H9/283—Interlocking, locking, or latching mechanisms for locking switch parts by a key or equivalent removable member making use of a padlock and a separate part mounted or mountable on the switch assembly and movable between an unlocking position and a locking position where it can be secured by the padlock the part being removable

Definitions

  • the present invention relates to a device for locking the control of an electric device with manual control, this device comprising two parts articulated to each other by means of articulation along a first axis between a release position and a locking position, hooking means arranged on each part along an edge spaced from the articulation means, each part carrying a wing in which a locking opening is formed, the locking openings being arranged to come opposite from each other by sliding the wings one parallel to the other when the device passes into the locked position.
  • each part has two wings and there are therefore four holes which are aligned with each other in the locked position, namely a pair orifices on each side of the path of the manual control.
  • a padlock can be engaged in each pair of holes, the arch of which directly prevents movement of the manual control.
  • This device has many drawbacks. Despite the presence of the four wings and the resulting constructive complexity, it is possible at most to put two padlocks in position to prevent the actuation of the manual control independently of one another. However, standards generally require the possibility of putting three padlocks. Even if one is satisfied with the number of two padlocks, one still encounters in US-A-4 260 861 of the difficulties to set up these padlocks one in front of the other. In reality, one can even wonder if it is possible to engage the second padlock hoop when the first padlock hoop is already protruding in the interval between the two pairs of wings. In addition, between the wings, the device is necessarily hollowed out to allow the movements of the manual control. This obliges to give the wings a good rigidity if one wants to avoid that it is possible to bend them outwards to move the padlock ring (s) from the path of the manual control, which would allow fraudulent actuation this one.
  • the padlock does not have the role of directly locking the manual control, it locks the blade in a position where the latter locks the manual control.
  • the blade could define several eyes capable of each receiving a padlock locking independently of other padlocks the blade in the locked position.
  • the object of the invention is thus to propose a device of the type indicated at the start, which is simple, reliable, and which allows the maximum number of usable padlocks to be freely chosen.
  • At least one of the parts carries a stop surface positioned so as to obstruct the actuation of the manual control in at least one of its possible positions when the device is in the locking position, and each wing carries several locking openings which, in the locking position, come simultaneously opposite the locking openings of the other wing.
  • the two parts are inclined relative to each other around the articulation means, the abutment surface is moved away from the manual control which can be optionally operated.
  • the abutment surface prevents the operation of the manual control.
  • the locking device can be held in the locking position by the rod of one or more padlocks extending through the openings, and / or by a wire passing through at least one of the pairs of openings and tightened against the edge of the locking device by sealing.
  • each padlock or other locking means engaged in only one of the pairs of facing openings blocks the device in a locking position, in which the abutment surface in turn blocks the manual control in the desired position.
  • this device even made of relatively non-rigid material, is difficult to violate because the wings are very effective reinforcing ribs opposing the bending which would be necessary to release the locking means when the padlocks are in place, it that is to say the bending around an axis parallel to the axis of articulation between the two parts.
  • the articulation means between the adjacent parts protrude relative to the abutment surfaces when the device is in the locked position.
  • the support of the locking device on the manual control is reinforced.
  • the wings are each articulated to the associated part, so as to be movable between a prone position suitable for the manufacture of the device, and a service position in which they are brought back. one against the other.
  • the locking device can be manufactured at piat and the locking openings are brought into facing by a rotation of the wings around their articulation means.
  • At least one of the wings has a positioning stud extending transversely to the plane of the wing, and the other wing has a corresponding hole for receiving the stud. positioning when the device is in the locked position.
  • the positioning stud of one wing penetrate into the corresponding hole of the other wing, positioning of the locking device is ensured before the positioning of the holding means such as the padlock or the lead wire.
  • the locking device comprises two parts 1, articulated to each other by articulation means 2, attachment means, formed here by lugs 3 projecting from at the ends of the parts 1, are arranged along an edge spaced apart from the articulation means 2.
  • each part 1 carries a stop surface 4 and has three locking openings 5 which come opposite the corresponding locking openings of the other party when the device is in a locking position ( Figures 5, 6).
  • the articulation means 2 formed by a thin wall in the form of a bridge joining the parts 1, protrude relative to the abutment surfaces 4 (FIGS. 5, 6).
  • the locking openings 5 are formed in wings 6, each articulated by a hinge 7 to one of the adjacent parts 1.
  • each of the wings 6 comprises a positioning stud 8, extending transversely to the plane of the wing 6 and a hole 9 corresponding to the positioning stud 8 in the other wing to receive this positioning stud when the device is in the locked position.
  • FIG. 5 illustrates an alternative embodiment of the device in which the locking openings 5 are closed by a thin partition 10, having weakening grooves 11, so that the partition 10 is fragile in a direction transverse to its plane and relatively resistant in a direction substantially parallel to its plane.
  • the locking device according to the invention has been made of a plastic material, more particularly polypropylene which has both sufficient rigidity so that the plate-shaped parts 1 and the wings 6 are rigid, and also sufficient flexibility for a thin wall made of this material to be flexible in order to produce the hinges 2 and 7.
  • the device could thus be molded in one piece. Its manufacture is therefore quick and inexpensive.
  • FIG. 4 Illustrated in Figures 4 and 5 the establishment of the locking device according to the invention on a switch whose housing 12 has recesses 13 of shape substantially complementary to that of the pins 3 of the device.
  • the switch further comprises a tilting manual control 14, framed by the housings 13.
  • the two parts 1 are inclined relative to each other around the articulation 2, the wings 6 being in any position, for example folded substantially perpendicular to the parts 1, as shown in FIG. 4.
  • the pins 3 are then introduced into the housings 13, then the parts 1 are folded down, while keeping the wings 6 substantially parallel to each other, until the notches 5 of each wing 6 are coincidental.
  • the control 14 of the switch is thus opposite a stop surface 4 and, in the case shown in FIG. 5, on the side of the hinge 2 projecting relative to the surface 4.
  • the wings 6 are then pressed one against the other and the stud 8 of one wing enters the corresponding hole 9 of the other wing so that the device is temporarily held in the locked position.
  • the device is then held more firmly in the locked position, either by the introduction of one or more padlock rods 15, with a diameter close to the opening 5 which has been made in the wing 6, or by means of 'a wire 16 held tight in an opening 5 by a seal 17.
  • the parts 1 can only pivot by a negligible amount around the hinge 2 and any attempt to operate the manual control 14 brings the latter in contact with the abutment surface 4 and the side of the hinge 2 without it is possible to completely tilt the control 14.
  • the locking means prevent tearing of the device, the pins 3 of which cannot be released from the housings 13.
  • the locking device according to the invention is more particularly adapted to a switch comprising two push buttons 18, 19 alternately pressed in or out.
  • the device comprises two parts 1, articulated around a hinge 2 and supporting wings 6 in which openings 5 are made.
  • one of the abutment surfaces 4 is in projecting from the plane of the other abutment surface 4 and is disposed, when the device is put in place, opposite the button 19 which is in the depressed position.
  • part 1 instead of being made of plastic material can be made of a rigid material, such as steel or a light alloy, the hinge 2 then being produced by an axis engaged in sleeves integral with the parts 1.
  • the openings 5 can also be produced in wings 6 rigidly connected to the parts 1 transversely to the latter.
  • the device according to the invention has been shown with three openings 5, making it possible to introduce three different padlocks according to the safety standards in force, it is possible to provide a single opening associated with each part 1 or on the contrary a greater number of 'openings.
  • the profile of the abutment surfaces 4 can be adapted to the shape of the manual control of the electrical device on which the locking device is mounted.
  • the hinge 2 has been shown in a central position of the device, provision may be made to offset the hinge 2 or to replace it by any equivalent means allowing movement abutment surfaces 4 to move them away from the manual control when the openings 5 are not kept in coincidence and on the contrary keep the latter close to the manual control when the openings 5 are brought into coincidence and held in this position.

Description

La présente invention concerne un dispositif de verrouillage de la commande d'un appareil électrique à commande manuelle, ce dispositif comprenant deux parties articulées l'une à l'autre par des moyens d'articulation selon un premier axe entre une position de dégagement et une position de verrouillage, des moyens d'accrochage disposés sur chaque partie le long d'un bord espacé des moyens d'articulation, chaque partie portant une aile dans laquelle est formée une ouverture de verrouillage, les ouvertures de verrouillage étant disposées pour venir en regard l'une de l'autre par glissement des ailes l'une parallèlement à l'autre lorsque le dispositif passe en position de verrouillage.The present invention relates to a device for locking the control of an electric device with manual control, this device comprising two parts articulated to each other by means of articulation along a first axis between a release position and a locking position, hooking means arranged on each part along an edge spaced from the articulation means, each part carrying a wing in which a locking opening is formed, the locking openings being arranged to come opposite from each other by sliding the wings one parallel to the other when the device passes into the locked position.

Un tel dispositif est connu d'après le US-A-4 260 861. Selon ce document, chaque partie comporte deux ailes et il y a donc quatre orifices qui sont alignés les uns avec les autres en position de verrouillage, à savoir une paire d'orifices de chaque côté de la trajectoire de la commande manuelle. On peut engager dans chaque paire d'orifices un cadenas dont l'arceau empêche directement le mouvement de la commande manuelle.Such a device is known from US-A-4 260 861. According to this document, each part has two wings and there are therefore four holes which are aligned with each other in the locked position, namely a pair orifices on each side of the path of the manual control. A padlock can be engaged in each pair of holes, the arch of which directly prevents movement of the manual control.

Ce dispositif a de nombreux inconvénients. Malgré la présence des quatre ailes et la complexité constructive qui en résulte, on peut tout au plus mettre deux cadenas en position d'empêcher indépendamment l'un de l'autre l'actionnement de la commande manuelle. Or les normes requièrent en général la possibilité de mettre trois cadenas. Même si l'on se contente du nombre de deux cadenas, on rencontre encore dans le US-A-4 260 861 des difficultés pour mettre en place ces cadenas l'un en face de l'autre. En réalité, on peut même se demander s'il est possible d'engager le deuxième arceau de cadenas alors que le premier arceau de cadenas fait déjà saillie dans l'intervalle entre les deux paires d'ailes. De plus, entre les ailes, le dispositif est nécessairement évidé pour permettre les mouvements de la commande manuelle. Ceci oblige à donner aux ailes une bonne rigidité si l'on veut éviter qu'il soit possible de les fléchir vers l'extérieur pour écarter le ou les arceaux de cadenas de la trajectoire de la commande manuelle, ce qui permettrait d'actionner frauduleusement celle-ci.This device has many drawbacks. Despite the presence of the four wings and the resulting constructive complexity, it is possible at most to put two padlocks in position to prevent the actuation of the manual control independently of one another. However, standards generally require the possibility of putting three padlocks. Even if one is satisfied with the number of two padlocks, one still encounters in US-A-4 260 861 of the difficulties to set up these padlocks one in front of the other. In reality, one can even wonder if it is possible to engage the second padlock hoop when the first padlock hoop is already protruding in the interval between the two pairs of wings. In addition, between the wings, the device is necessarily hollowed out to allow the movements of the manual control. This obliges to give the wings a good rigidity if one wants to avoid that it is possible to bend them outwards to move the padlock ring (s) from the path of the manual control, which would allow fraudulent actuation this one.

On connaît encore d'après le US-A-2 192 060 un dispositif dans lequel un étrier entoure sur trois côtés la commande manuelle et une lame de ressort fixée à la partie centrale de l'étrier définit un oeil dans lequel peut être engagé un cadenas passant également par un trou de chaque extrémité de l'étrier. Entre l'oeil précité et la fixation à la partie centrale de l'étrier, la lame de ressort forme un lobe de verrouillage de la commande manuelle, de type à levier basculant. A ses extrémités, situées respectivement au-delà de la fixation à l'étrier et de l'oeil, la lame forme deux crochets de prise sous des rebords du boîtier d'interrupteur.We also know from US-A-2,192,060 a device in which a stirrup surrounds on three sides the manual control and a leaf spring fixed to the central part of the stirrup defines an eye in which can be engaged a padlock also passing through a hole on each end of the bracket. Between the aforementioned eye and the attachment to the central part of the stirrup, the leaf spring forms a lobe for locking the manual control, of the tilting lever type. At its ends, located respectively beyond the fixing to the stirrup and the eye, the blade forms two catch hooks under the edges of the switch housing.

Dans ce cas, le cadenas n'a pas pour rôle de verrouiller directement la commande manuelle, il verrouille la lame en une position où celle-ci verrouille la commande manuelle. En théorie, la lame pourrait définir plusieurs yeux capables de recevoir chacun un cadenas verrouillant indépendamment d'autres cadenas la lame en position de verrouillage.In this case, the padlock does not have the role of directly locking the manual control, it locks the blade in a position where the latter locks the manual control. In theory, the blade could define several eyes capable of each receiving a padlock locking independently of other padlocks the blade in the locked position.

Toutefois, ceci paraît difficilement réalisable compte tenu de la longueur disponible limitée entre le lobe de verrouillage du levier basculant et le crochet de montage porté par la lame au-delà de l'oeil. Si l'on allonge la lame de manière à augmenter le nombre de cadenas utilisables, les fraudes par déformation de la lame flexible seront faciles, notamment si seul l'oeil le plus éloigné du lobe est muni d'un cadenas. La fiabilité de ce dispositif connu repose encore sur la rigidité des branches de l'étrier à l'égard de la flexion. Au contraire, la lame est nécessairement souple, ce qui oblige à prévoir deux matériaux différents, dont un est de l'acier à ressort.However, this seems difficult to achieve given the limited length available between the lobe of the rocking lever and the mounting hook carried by the blade beyond the eye. If the blade is extended so as to increase the number of usable padlocks, fraud by deformation of the flexible blade will be easy, in particular if only the eye furthest from the lobe is provided with a padlock. The reliability of this known device also rests on the rigidity of the legs of the stirrup with regard to bending. On the contrary, the blade is necessarily flexible, which means that two different materials must be provided, one of which is spring steel.

Le but de l'invention est ainsi de proposer un dispositif du genre indiqué au début, qui soit simple, fiable, et qui permette de choisir librement le nombre maximal de cadenas utilisables.The object of the invention is thus to propose a device of the type indicated at the start, which is simple, reliable, and which allows the maximum number of usable padlocks to be freely chosen.

Suivant l'invention, l'une au moins des parties porte une surface de butée positionnée de manière à faire obstacle à l'actionnement de la commande manuelle dans l'une au moins de ses positions possibles lorsque le dispositif est en position de verrouillage, et chaque aile porte plusieurs ouvertures de verrouillage qui, en position de verrouillage, viennent simultanément en regard avec les ouvertures de verrouillage de l'autre aile.According to the invention, at least one of the parts carries a stop surface positioned so as to obstruct the actuation of the manual control in at least one of its possible positions when the device is in the locking position, and each wing carries several locking openings which, in the locking position, come simultaneously opposite the locking openings of the other wing.

Pendant la mise en place du dispositif les deux parties sont inclinées l'une par rapport à l'autre autour des moyens d'articulation, la surface de butée est écartée de la commande manuelle qui peut être éventuellement manoeuvrée. Au contraire, lorsque le dispositif de verrouillage est mis en place avec les ouvertures de verrouillage en regard, la surface de butée empêche la manoeuvre de la commande manuelle. Le dispositif de verrouillage peut être maintenu en position de verrouillage par la tige d'un ou plusieurs cadenas s'étendant à travers les ouvertures, et/ou par un fil passant par l'une au moins des paires d'ouvertures et serré contre le bord du dispositif de verrouillage par un plombage.During the installation of the device, the two parts are inclined relative to each other around the articulation means, the abutment surface is moved away from the manual control which can be optionally operated. On the contrary, when the locking device is put in place with the locking openings facing each other, the abutment surface prevents the operation of the manual control. The locking device can be held in the locking position by the rod of one or more padlocks extending through the openings, and / or by a wire passing through at least one of the pairs of openings and tightened against the edge of the locking device by sealing.

Ainsi, chaque cadenas ou autre moyen de verrouillage engagé dans une seule des paires d'ouvertures en regard bloque le dispositif en une position de verrouillage, dans laquelle la surface de butée bloque à son tour la commande manuelle dans la position voulue. Rien n'empêche de prévoir dans les ailes autant d'ouvertures de verrouillage que l'on veut, et les cadenas sont faciles à mettre en place dans les différentes paires d'ouvertures. De plus, ce dispositif même réalisé en matière relativement peu rigide, est difficilement violable car les ailes sont de très efficaces nervures de renforcement s'opposant à la flexion qui serait nécessaire pour dégager les moyens de verrouillage lorsque les cadenas sont en place, c'est-à-dire la flexion autour d'un axe parallèle à l'axe d'articulation entre les deux parties. Contrairement à ce qui se passe selon les US-A-4 260 861 et 2 192 060, une flexion des ailes autour d'un axe situé dans leur plan respectif ne favoriserait en rien l'extraction du dispositif à l'état cadenassé, ou la libération de la commande manuelle alors que le dispositif cadenassé est en place.Thus, each padlock or other locking means engaged in only one of the pairs of facing openings blocks the device in a locking position, in which the abutment surface in turn blocks the manual control in the desired position. Nothing prevents to provide in the wings as many locking openings as you want, and the padlocks are easy to put in place in the different pairs of openings. In addition, this device, even made of relatively non-rigid material, is difficult to violate because the wings are very effective reinforcing ribs opposing the bending which would be necessary to release the locking means when the padlocks are in place, it that is to say the bending around an axis parallel to the axis of articulation between the two parts. Contrary to what happens according to US-A-4 260 861 and 2 192 060, a bending of the wings around an axis situated in their respective plane would in no way favor the extraction of the device in padlocked state, or the release of the manual control while the padlocked device is in place.

Selon une version avantageuse de l'invention, les moyens d'articulation entre les parties adjacentes sont en saillie par rapport aux surfaces de butée lorsque le dispositif est en position de verrouillage. Ainsi, l'appui du dispositif de verrouillage sur la commande manuelle se trouve renforcé.According to an advantageous version of the invention, the articulation means between the adjacent parts protrude relative to the abutment surfaces when the device is in the locked position. Thus, the support of the locking device on the manual control is reinforced.

Selon une version préférée du dispositif de verrouillage selon l'invention, les ailes sont chacune articulée à la partie associée, de manière à être mobiles entre une position couchée appropriée pour la fabrication du dispositif, et une position de service dans laquelle elles sont ramenées l'une contre l'autre.According to a preferred version of the locking device according to the invention, the wings are each articulated to the associated part, so as to be movable between a prone position suitable for the manufacture of the device, and a service position in which they are brought back. one against the other.

Ainsi, le dispositif de verrouillage peut être fabriqué à piat et les ouvertures de verrouillage sont mises en regard par une rotation des ailes autour de leur moyen d'articulation.Thus, the locking device can be manufactured at piat and the locking openings are brought into facing by a rotation of the wings around their articulation means.

Selon une autre caractéristique de la version préférée de l'invention, au moins l'une des ailes comporte un téton de positionnement s'étendant transversalement au plan de l'aile, et l'autre aile comporte un trou correspondant pour recevoir le téton de positionnement lorsque le dispositif est en position de verrouillage. Ainsi, en faisant pénétrer le téton de positionnement d'une aile dans le trou correspondant de l'autre aile, on assure un positionnement du dispositif de verrouillage avant la mise en place des moyens de maintien tels que le cadenas ou le fil plombé.According to another characteristic of the preferred version of the invention, at least one of the wings has a positioning stud extending transversely to the plane of the wing, and the other wing has a corresponding hole for receiving the stud. positioning when the device is in the locked position. Thus, by making the positioning stud of one wing penetrate into the corresponding hole of the other wing, positioning of the locking device is ensured before the positioning of the holding means such as the padlock or the lead wire.

D'autres caractéristiques et avantages de l'invention résulteront encore de la description ci-après d'exemples non limitatifs en référence aux dessins annexés dans lesquels:

  • la figure 1 est une vue en perspective de dessus du dispositif de verrouillage en position ouverte,
  • la figure 2 est une vue en perspective de dessous du dispositif de verrouillage en position ouverte,
  • la figure 3 est une vue en perspective du dispositif en position fermée,
  • la figure 4 est une vue en coupe schématique d'un appareil à commande manuelle au moment de la mise en place du dispositif de verrouillage,
  • la figure 5 est une vue en coupe schématique d'un appareil à commande manuelle avec le dispositif de verrouillage en position fermée,
  • la figure 6 est une vue en coupe schématique d'une variante du dispositif de verrouillage en position sur un appareil électrique à bouton poussoir.
Other characteristics and advantages of the invention will also result from the following description of nonlimiting examples with reference to the appended drawings in which:
  • FIG. 1 is a perspective view from above of the locking device in the open position,
  • FIG. 2 is a perspective view from below of the locking device in the open position,
  • FIG. 3 is a perspective view of the device in the closed position,
  • FIG. 4 is a schematic sectional view of a device with manual control when the locking device is put in place,
  • FIG. 5 is a schematic sectional view of a device with manual control with the locking device in the closed position,
  • Figure 6 is a schematic sectional view of a variant of the locking device in position on an electrical device with push button.

En référence aux figures, le dispositif de verrouillage selon l'invention comporte deux parties 1, articulées l'une à l'autre par des moyens d'articulation 2, des moyens d'accrochage, formés ici par des ergots 3 en saillie par rapport aux extrémités des parties 1, sont disposés le long d'un bord espacé des moyens d'articulation 2. Dans le mode de réalisation représenté, chaque partie 1 porte une surface de butée 4 et comporte trois ouvertures 5 de verrouillage qui viennent en regard des ouvertures de verrouillage correspondantes de l'autre partie lorsque le dispositif est dans une position de verrouillage (figures 5, 6).With reference to the figures, the locking device according to the invention comprises two parts 1, articulated to each other by articulation means 2, attachment means, formed here by lugs 3 projecting from at the ends of the parts 1, are arranged along an edge spaced apart from the articulation means 2. In the embodiment shown, each part 1 carries a stop surface 4 and has three locking openings 5 which come opposite the corresponding locking openings of the other party when the device is in a locking position (Figures 5, 6).

Les moyens d'articulation 2, formés par une paroi mince en forme de pont réunissant les parties 1, font saillie par rapport aux surfaces de butée 4 (figures 5, 6).The articulation means 2, formed by a thin wall in the form of a bridge joining the parts 1, protrude relative to the abutment surfaces 4 (FIGS. 5, 6).

Les ouvertures de verrouillage 5 sont formées dans des ailes 6, chacune articulée par une charnière 7 à l'une des parties 1 adjacentes.The locking openings 5 are formed in wings 6, each articulated by a hinge 7 to one of the adjacent parts 1.

Dans le mode de réalisation représenté, chacune des ailes 6 comporte un téton 8 de positionnement, s'étendant transversalement au plan de l'aile 6 et un trou 9 correspondant au téton de positionnement 8 dans l'autre aile pour recevoir ce téton de positionnement lorsque le dispositif est en position de verrouillage.In the embodiment shown, each of the wings 6 comprises a positioning stud 8, extending transversely to the plane of the wing 6 and a hole 9 corresponding to the positioning stud 8 in the other wing to receive this positioning stud when the device is in the locked position.

La figure 5 illustre une variante de réalisation du dispositif dans laquelle les ouvertures de verrouillage 5 sont obturées par une cloison mince 10, comportant des rainures d'affaiblissement 11, de sorte que la cloison 10 est fragile suivant une direction transversale à son plan et relativement résistante selon une direction sensiblement parallèle à son plan.FIG. 5 illustrates an alternative embodiment of the device in which the locking openings 5 are closed by a thin partition 10, having weakening grooves 11, so that the partition 10 is fragile in a direction transverse to its plane and relatively resistant in a direction substantially parallel to its plane.

A titre d'exemple, le dispositif de verrouillage selon l'invention a été réalisé en une matière plastique, plus particulièrement du polypropylène qui présente à la fois une rigidité suffisante pour que les parties 1 en forme de plaque et les ailes 6 soient rigides, et également une souplesse suffisante pour qu'une paroi mince constituée dans ce matériau soit souple afin de réaliser les charnières 2 et 7. Le dispositif a ainsi pu être moulé en une seule pièce. Sa fabrication est donc rapide et peu onéreuse.By way of example, the locking device according to the invention has been made of a plastic material, more particularly polypropylene which has both sufficient rigidity so that the plate-shaped parts 1 and the wings 6 are rigid, and also sufficient flexibility for a thin wall made of this material to be flexible in order to produce the hinges 2 and 7. The device could thus be molded in one piece. Its manufacture is therefore quick and inexpensive.

On a illustré sur les figures 4 et 5 la mise en place du dispositif de verrouillage selon l'invention sur un interrupteur dont le boîtier 12 comporte des logements 13 de forme sensiblement complémentaire à celle des ergots 3 du dispositif. L'interrupteur comporte en outre une commande manuelle basculante 14, encadrée par les logements 13.Illustrated in Figures 4 and 5 the establishment of the locking device according to the invention on a switch whose housing 12 has recesses 13 of shape substantially complementary to that of the pins 3 of the device. The switch further comprises a tilting manual control 14, framed by the housings 13.

Pour la mise en place du dispositif, les deux parties 1 sont inclinées l'une par rapport à l'autre autour de l'articulation 2, les ailes 6 étant dans une position quelconque, par exemple repliées sensiblement perpendiculairement aux parties 1, comme représenté sur la figure 4. Les ergots 3 sont alors introduits dans les logements 13, puis les parties 1 sont rabattues, tout en maintenant les ailes 6 sensiblement parallèles l'une à l'autre, jusqu'au moment où les encoches 5 de chaque aile 6 sont en coïncidence. La commande 14 de l'interrupteur est ainsi en regard d'une surface de butée 4 et, dans le cas représenté sur la figure 5, du côté de la charnière 2 faisant saillie par rapport à la surface 4. Les ailes 6 sont alors plaquées l'une contre l'autre et le téton 8 d'une aile pénètre dans le trou 9 correspondant de l'autre aile de sorte que le dispositif est maintenu provisoirement en position de verrouillage. Le dispositif est ensuite maintenu plus fermement en position verrouillée, soit par l'introduction d'une ou plusieurs tiges de cadenas 15, d'un diamètre voisin de l'ouverture 5 qui a été pratiquée dans l'aile 6, soit au moyen d'un fil 16 maintenu serré dans une ouverture 5 par un plombage 17. On constate qu'en raison du faible jeu qui existe entre l'ouverture 5 et la tige de cadenas 15 ou entre la boucle du fil 16 et le rebord des ailes 6, les parties 1 ne peuvent pivoter que d'une quantité négligeable autour de la charnière 2 et toute tentative de manoeuvre de la commande manuelle 14 amène celle-ci en contact avec la surface de butée 4 et le côté de la charnière 2 sans qu'il soit possible de basculer complètement la commande 14. De plus, en bloquant la charnière 2 entre les parties 1, les moyens de verrouillage empêchent un arrachement du dispositif dont les ergots 3 ne peuvent être dégagés des logements 13.For the installation of the device, the two parts 1 are inclined relative to each other around the articulation 2, the wings 6 being in any position, for example folded substantially perpendicular to the parts 1, as shown in FIG. 4. The pins 3 are then introduced into the housings 13, then the parts 1 are folded down, while keeping the wings 6 substantially parallel to each other, until the notches 5 of each wing 6 are coincidental. The control 14 of the switch is thus opposite a stop surface 4 and, in the case shown in FIG. 5, on the side of the hinge 2 projecting relative to the surface 4. The wings 6 are then pressed one against the other and the stud 8 of one wing enters the corresponding hole 9 of the other wing so that the device is temporarily held in the locked position. The device is then held more firmly in the locked position, either by the introduction of one or more padlock rods 15, with a diameter close to the opening 5 which has been made in the wing 6, or by means of 'a wire 16 held tight in an opening 5 by a seal 17. It can be seen that due to the small clearance which exists between the opening 5 and the padlock rod 15 or between the loop of the wire 16 and the edge of the wings 6 , the parts 1 can only pivot by a negligible amount around the hinge 2 and any attempt to operate the manual control 14 brings the latter in contact with the abutment surface 4 and the side of the hinge 2 without it is possible to completely tilt the control 14. In addition, by blocking the hinge 2 between the parts 1, the locking means prevent tearing of the device, the pins 3 of which cannot be released from the housings 13.

Dans la variante de réalisation de la figure 6, le dispositif de verrouillage selon l'invention est plus particulièrement adapté à un interrupteur comportant deux boutons poussoirs 18, 19 alternativement enfoncés ou sortis. Le dispositif comporte comme dans le mode de réalisation précédent deux parties 1, articulées autour d'une charnière 2 et supportant des ailes 6 dans lesquelles sont réalisées des ouvertures 5. Dans ce mode de réalisation, l'une des surfaces de butée 4 est en saillie par rapport au plan de l'autre surface de butée 4 et est disposée, lors de la mise en place du dispositif, en face du bouton 19 qui est en position enfoncée. Ainsi, indépendamment du fait que la partie 1 supérieure masque le bouton poussoir 18, celui-ci ne peut être manoeuvré car il entraînerait la sortie du bouton 19 qui viendrait alors en butée contre la surface de butée 4 correspondante.In the variant embodiment of FIG. 6, the locking device according to the invention is more particularly adapted to a switch comprising two push buttons 18, 19 alternately pressed in or out. As in the previous embodiment, the device comprises two parts 1, articulated around a hinge 2 and supporting wings 6 in which openings 5 are made. In this embodiment, one of the abutment surfaces 4 is in projecting from the plane of the other abutment surface 4 and is disposed, when the device is put in place, opposite the button 19 which is in the depressed position. Thus, regardless of the fact that the upper part 1 masks the push button 18, the latter cannot be operated because it would cause the button 19 to exit, which would then come into abutment against the corresponding abutment surface 4.

Bien entendu l'invention n'est pas limitée aux modes de réalisation décrits ci-dessus et on peut y apporter des variantes d'exécution.Of course, the invention is not limited to the embodiments described above and it is possible to make variant embodiments.

Par exemple, la partie 1 au lieu d'être réalisée en matière plastique peut être réalisée en un matériau rigide, tel que de l'acier ou un alliage léger, la charnière 2 étant alors réalisée par un axe engagé dans des manchons solidaires des parties 1. Les ouvertures 5 peuvent également être réalisées dans des ailes 6 rigidement reliées aux parties 1 transversalement à celles-ci.For example, part 1 instead of being made of plastic material can be made of a rigid material, such as steel or a light alloy, the hinge 2 then being produced by an axis engaged in sleeves integral with the parts 1. The openings 5 can also be produced in wings 6 rigidly connected to the parts 1 transversely to the latter.

Bien que le dispositif selon l'invention ait été représenté avec trois ouvertures 5, permettant d'introduire trois cadenas différents suivant les normes de sécurité en vigueur, on peut prévoir une seule ouverture associée à chaque partie 1 ou au contraire un plus grand nombre d'ouvertures.Although the device according to the invention has been shown with three openings 5, making it possible to introduce three different padlocks according to the safety standards in force, it is possible to provide a single opening associated with each part 1 or on the contrary a greater number of 'openings.

On comprend également aisément que le profil des surfaces de butée 4 peut être adapté à la forme de la commande manuelle de l'appareil électrique sur lequel le dispositif de verrouillage est monté.It is also easily understood that the profile of the abutment surfaces 4 can be adapted to the shape of the manual control of the electrical device on which the locking device is mounted.

De plus, bien que pour des raisons de symétrie de mouvement de la commande manuelle 14, la charnière 2 aitété représentée dans une position médiane du dispositif, on peut prévoir d'excentrer la charnière 2 ou de la remplacer par tout moyen équivalent permettant un mouvement des surfaces de butée 4 pour les écarter de la commande manuelle lorsque les ouvertures 5 ne sont pas maintenues en coïncidence et au contraire maintenir celle-ci à proximité de la commande manuelle lorsque les ouvertures 5 sont mises en coïncidence et maintenues dans cette position.In addition, although for reasons of symmetry of movement of the manual control 14, the hinge 2 has been shown in a central position of the device, provision may be made to offset the hinge 2 or to replace it by any equivalent means allowing movement abutment surfaces 4 to move them away from the manual control when the openings 5 are not kept in coincidence and on the contrary keep the latter close to the manual control when the openings 5 are brought into coincidence and held in this position.

Claims (8)

1. A device for locking the control member (14, 19) of an electrical appliance of the manual control type, wherein said device comprises two adjacent portions (1) pivotally joined together by hinge means (2) about a first axis between a release position and a locking position, hooking means (3) arranged on each portion along an edge located in spaced relation to said hinge means (2), each portion (1) carrying a wing (6) in which a locking orifice (5) is formed, said locking orifices (5) being so arranged as to register with each other due to the wings sliding parallel to each other when the device moves to the locking position, characterized in that at least one of the portions (1) carries an abutment surface (4) so as to be an obstacle to actuation of the manual control (14; 18, 19) in at least one of the possible positions of said manual control when the device is in the locking position, and in that each wing (6) is provided with several locking orifices (5) which, in the locking position, simultaneously register with the locking orifices (5) of the other wing (6).
2. A locking device according to claim 1, characterized in that each wing is hinged with the associated portion (1), so as to be movable between a lying position (figures 1 and 2), convenient for manufacturing of the device, and a service position (figures 3, 4) in which the wings are brought back against each other.
3. A locking device according to one of claims 1 and 2, characterized in that the hinge means (2) located between the adjacent portions (1) projects with respect to the abutment surfaces (4) when the device is in the locking position.
4. A locking device according to one of claims 1 to 3, characterized in that at least one of the wings (6) has a positioning stud (8) which extends transversely to the plane of the wing (6) and the other wing (6) has a corresponding hole (9) for receiving the positioning stud (8) when the device is in the locking position.
5. A locking device according to one of claims 1 to 4, characterized in that the locking orifices (5) are closed-off by means of a partition wall (10) which is brittle in a direction transverse to its plane and resistant in a direction substantially parallel to its plane.
6. A device according to claim 5, characterized in that the partition wall (10) is provided with weakening grooves (11).
7. A device according to one of claims 1 to 6, characterized in that said device is of plastic material molded in one piece.
8. A device according to one of claims 1 to 7 and adapted to an electrical appliance provided with a manual control unit using push-buttons (18, 19), characterized in that one of the abutment surfaces (4) projects with respect to the plane of the other abutment surface (4).
EP85401648A 1984-08-16 1985-08-14 Locking device for the operation of an electrical apparatus with manual operation Expired EP0174246B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8412845 1984-08-16
FR8412845A FR2569301B1 (en) 1984-08-16 1984-08-16 DEVICE FOR LOCKING THE CONTROL OF A MANUALLY CONTROLLED ELECTRIC APPARATUS

Publications (2)

Publication Number Publication Date
EP0174246A1 EP0174246A1 (en) 1986-03-12
EP0174246B1 true EP0174246B1 (en) 1988-05-11

Family

ID=9307060

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85401648A Expired EP0174246B1 (en) 1984-08-16 1985-08-14 Locking device for the operation of an electrical apparatus with manual operation

Country Status (6)

Country Link
US (1) US4677261A (en)
EP (1) EP0174246B1 (en)
JP (1) JPS6182616A (en)
DE (1) DE3562688D1 (en)
ES (1) ES8705153A1 (en)
FR (1) FR2569301B1 (en)

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Also Published As

Publication number Publication date
EP0174246A1 (en) 1986-03-12
FR2569301A1 (en) 1986-02-21
ES546162A0 (en) 1987-04-16
ES8705153A1 (en) 1987-04-16
DE3562688D1 (en) 1988-06-16
FR2569301B1 (en) 1987-03-20
JPS6182616A (en) 1986-04-26
US4677261A (en) 1987-06-30

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