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EP0604331B1 - Locking device with a padlock of a manual control lever of a modular electric switching device - Google Patents

Locking device with a padlock of a manual control lever of a modular electric switching device Download PDF

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Publication number
EP0604331B1
EP0604331B1 EP93420496A EP93420496A EP0604331B1 EP 0604331 B1 EP0604331 B1 EP 0604331B1 EP 93420496 A EP93420496 A EP 93420496A EP 93420496 A EP93420496 A EP 93420496A EP 0604331 B1 EP0604331 B1 EP 0604331B1
Authority
EP
European Patent Office
Prior art keywords
lever
handle
stable positions
padlocking
cover
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
EP93420496A
Other languages
German (de)
French (fr)
Other versions
EP0604331A1 (en
Inventor
Michel Vieux
Philippe Delcambre
Noel Le Corre
François Reynaud
Jacques Buisson
Jean Barral-Baron
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.)
Schneider Electric SE
Original Assignee
Schneider Electric SE
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Filing date
Publication date
Application filed by Schneider Electric SE filed Critical Schneider Electric SE
Publication of EP0604331A1 publication Critical patent/EP0604331A1/en
Application granted granted Critical
Publication of EP0604331B1 publication Critical patent/EP0604331B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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

  • a lockout device is equipped with a locking pin whose flexible arms are associated with lugs arranged to penetrate the sealing holes in the circuit breaker box.
  • the two arms are connected by a handle in which a padlock can be inserted which immobilizes a slide arranged to block the lugs in the sealing holes and thus maintain the release lever in one of its stable positions.
  • This slide is a relatively fragile piece and does not guarantee absolute inviolability of the system.
  • the present invention proposes to overcome the drawbacks of known devices by providing maximum security by guaranteeing that the manual control lever of an electrical appliance cannot be moved accidentally when it has been intentionally blocked in one of its stable positions.
  • said spacer is secured to the lever, and is disposed between the flexible arms.
  • the cover of the device preferably includes a cavity in which the handle can be housed when it is in one of its stable positions. The device is advantageously reversible depending on whether the lever occupies one or the other of its two stable positions.
  • the lever is provided with a pusher, and the cover is closed when the lever is in its low position.
  • the padlocking device 10 is provided to be adapted over the manual control lever 11 of a modular electrical device such as a circuit breaker 12.
  • a modular electrical device such as a circuit breaker 12.
  • this lever is tilted in one or other of its stable positions, namely in its open position (see Figure 1) or in its closed position (see Figure 2) the padlocking device is positioned in one direction or in the opposite direction.
  • the blocking of the lever and the padlocking of the device when this blocking is accomplished, can only be achieved if the lever is actually in one of its stable positions and are prohibited if it is in a position intermediate.
  • the device comprises, as shown more particularly in FIGS. 3A, 3B, 3C; 4A, 4B, 4C and 5A, 5B, 5C, a cover 13 comprising a cavity 14 in which the manual control lever 11 can be housed, a lever 15 movable between a first unlocked position (see FIGS. 3A, B and C) and a second locked position (see FIGS. 4A, B and C), and a locking pin 16 mounted in a housing disposed between the cavity 14 and the lever 11.
  • the lever 15 is equipped with a pusher 17 which allows the user to move it from its high position, called the first unlocked position, to its low position, called the second locked position, and vice versa. It also comprises an opening 18 whose dimensions are substantially equal to those of at least one opening 19 formed through the cover, so that when the lever is brought into its low position (see FIGS. 4A, B and C ), the openings 18 and 19 are located opposite one another and it becomes possible to padlock the device by passing the handle 20 of a padlock 21 in these openings.
  • the cover comprises two parallel wall elements 22 and 23 (see FIG. 2) each provided with an opening 19, and the lever 15 is arranged to be able to slide between these elements which serve as guides when 'it is moved between its two positions defined above.
  • the lever also includes a spacer 24 (see Figures 3B, 4B and 5B) whose role will be described below.
  • the manual control lever 11 is integral with a drum 25, rotatable about an axis integral with the housing of the electrical appliance, and which comprises, in a manner known per se, two sealing holes 26.
  • the pin locking which is shown in more detail and enlarged by Figure 6, comprises a central element 27 in the shape of a U, the two branches 27a and 27b of which are respectively extended by two lateral arms 28a and 28b carrying at their ends two lugs 29a and 29b. These two pins are arranged to engage respectively in the two sealing holes 26, when on the one hand the lever 11 is in one of its stable positions and on the other hand, when the pusher 17 is brought into its position low. In this position, the spacer 24 mentioned above, which was initially (see fig.
  • FIGS. 5A, 5B and 5C illustrate a particular case where the lever 11 is accidentally in an intermediate position between its stable positions.
  • the central element 27 of the locking pin is in fact locked in a space 30 in such a way that it has a certain play. It plays the role of a feeler capable of detecting the intermediate position of the lever 11.
  • the central element 27 or feeler abuts against this lever when the padlocking device is put in place, which has the effect of tilting the pin. Because of this inclination, the pins 29a and 29b are no longer in front of the sealing holes and therefore cannot engage in these holes when the pusher 17 is lowered.
  • the pin feeler constitutes a fault detector which prevents locking of the lever and blocking of the padlocking device if said lever does not occupy one of its two stable positions.
  • the cover 13 and the lever 15 are preferably made of injection molded synthetic material.
  • the pin is preferably made of steel. Their shape and dimensions can be adapted to the geometry of the electrical devices concerned. It should be noted that the cover is fully closed when the pusher is pressed, the lever being in its low position, making access to the pin 16 impossible.

Landscapes

  • Breakers (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Mechanical Control Devices (AREA)
  • Switches With Compound Operations (AREA)

Abstract

A device for padlocking a manual control handle of a modular electrical appliance is described. This device includes a cover plate (13) provided with a cavity (14) in which the said manual control handle (11) can be housed, a lever (15) which is movable between an unlocked position and a locked position, and a locking pin (16). The locking pin includes two studs (26) integral with the extremities of two flexible branches, and a central element which has a sensor function arranged to detect an intermediate position of the handle. The lever moreover includes an aperture (18) capable of coinciding with at least one aperture (19) of the cover plate in order to allow padlocking of the handle in one of its stable positions. This device is used, for example, for circuit breakers. <IMAGE>

Description

La présente invention concerne un dispositif de cadenassage d'une manette de commande manuelle d'un appareil électrique modulaire, notamment d'un disjoncteur, dans lequel la manette a deux positions stables correspondant respectivement à l'ouverture et à la fermeture de l'appareil, le boîtier de l'appareil étant pourvu de trous de plombage, et le dispositif de cadenassage comportant

  • une épingle de verrouillage ayant deux bras flexibles équipés d'ergots agencés pour pénétrer dans les trous de plombage lorsque ladite manette se trouve dans l'une de ses positions stables, le dispositif de cadenassage étant agencé pour être adapté sur le boîtier lorsque la manette se trouve dans l'une ou l'autre de ses positions stables,
  • un palpeur pour détecter une position intermédiaire entre lesdites positions stables de la manette et pour empêcher ledit cadenassage dans cette position,
  • un levier mobile entre une première position haute et une seconde position basse, ledit levier comportant une première ouverture autorisant le passage d'un cadenas de verrouillage lorsque le levier est amené dans la seconde position,
  • et un écarteur dudit levier agencé pour écarter les bras flexibles lorsque le levier est déplacé de la première position vers la seconde position, et pour faire pénétrer les ergots dans lesdits trous de plombage .
The present invention relates to a padlocking device for a manual control lever of a modular electrical device, in particular a circuit breaker, in which the lever has two stable positions corresponding respectively to the opening and closing of the device , the device housing being provided with sealing holes, and the padlocking device comprising
  • a locking pin having two flexible arms equipped with lugs arranged to penetrate into the sealing holes when said lever is in one of its stable positions, the padlocking device being arranged to be adapted on the housing when the lever is found in either of its stable positions,
  • a feeler to detect an intermediate position between said stable positions of the lever and to prevent said padlocking in this position,
  • a lever movable between a first high position and a second low position, said lever comprising a first opening allowing the passage of a locking padlock when the lever is brought into the second position,
  • and a spacer of said lever arranged to spread the flexible arms when the lever is moved from the first position to the second position, and to penetrate the pins in said sealing holes.

Un dispositif connu du genre mentionné est décrit dans le document GB-A-2152286. Le verrouillage du levier par l'action de blocage de l'épingle procure néanmoins un verrouillage relativement fragile.A known device of the kind mentioned is described in document GB-A-2152286. Locking the lever by the pin locking action nevertheless provides a relatively fragile locking.

Selon le brevet français Nº 78 13022 issu de la demande publiée sous le Nº 2.424.619 de la demanderesse, un dispositif de cadenassage est équipé d'une épingle de verrouillage dont les bras flexibles sont associés à des ergots agencés pour pénétrer dans les orifices de plombage du boîtier du disjoncteur. Les deux bras sont reliés par une anse dans laquelle on peut introduire un cadenas qui immobilise un coulisseau agencé pour bloquer les ergots dans les trous de plombage et ainsi maintenir la manette de déclenchement dans une de ses positions stables. Ce coulisseau est une pièce relativement fragile et ne garantit pas une inviolabilité absolue du système.According to French patent N º 78 13022 from the application published under N º 2,424,619 of the applicant, a lockout device is equipped with a locking pin whose flexible arms are associated with lugs arranged to penetrate the sealing holes in the circuit breaker box. The two arms are connected by a handle in which a padlock can be inserted which immobilizes a slide arranged to block the lugs in the sealing holes and thus maintain the release lever in one of its stable positions. This slide is a relatively fragile piece and does not guarantee absolute inviolability of the system.

Un autre dispositif ayant sensiblement le même but que celui de l'invention est décrit par le brevet européen Nº 0 232 773. Ce dispositif est pourvu d'un élément de verrouillage qui s'engage dans les orifices de plombage du boîtier du disjoncteur et qui est commandé par une came rotative actionnée par une clé. L'inconvénient de ce dispositif est qu'il ne peut pas être cadenassé et n'offre donc pas la garantie d'inviolabilité souhaitée.Another device having substantially the same purpose as that of the invention is described by European patent N º 0 232 773. This device is provided with a lock which engages in the sealing holes of the circuit breaker box and which is controlled by a rotary cam actuated by a key. The disadvantage of this device is that it cannot be padlocked and therefore does not offer the desired guarantee of inviolability.

La présente invention se propose de pallier les inconvénients des dispositifs connus en fournissant un maximum de sécurité en garantissant que la manette de commande manuelle d'un appareil électrique ne puisse pas être déplacée de façon accidentelle lorsqu'elle a été volontairement bloquée dans une de ses positions stables.The present invention proposes to overcome the drawbacks of known devices by providing maximum security by guaranteeing that the manual control lever of an electrical appliance cannot be moved accidentally when it has been intentionally blocked in one of its stable positions.

Ce but est atteint par un dispositif selon le préambule de la revendication 1 qui, selon l'invention, est caractérisé en ce que :

  • le levier est porté par un capot lequel est doté d'une deuxième ouverture alignée avec la première ouverture lorsque le levier se trouve dans la seconde position est conçue pour passer le cadenas de verrouillage,
  • l'épingle de verrouillage est montée dans le capot, et comporte un élément central en forme de U constituant ledit palpeur, les branches du U étant prolongées par lesdits bras flexibles dont les extrémités portent lesdits ergots ,
  • un logement de ladite épingle présente un jeu suffisant pour permettre à l'épingle d'occuper une position plus ou moins inclinée si la manette se trouve dans une position autre que l'une de ses deux positions stables.
This object is achieved by a device according to the preamble of claim 1 which, according to the invention, is characterized in that:
  • the lever is carried by a cover which has a second opening aligned with the first opening when the lever is in the second position is designed to pass the locking padlock,
  • the locking pin is mounted in the cover, and comprises a central U-shaped element constituting said feeler, the branches of the U being extended by said flexible arms whose ends carry said lugs,
  • a housing of said pin has sufficient play to allow the pin to occupy a more or less inclined position if the lever is in a position other than one of its two stable positions.

D'une façon avantageuse ledit écarteur est solidaire du levier, et est disposé entre les bras flexibles. Le capot du dispositif comporte de préférence une cavité dans laquelle peut être logée la manette lorsqu'elle se trouve dans une de ses positions stables.
Le dispositif est avantageusement réversible selon que la manette occupe l'une ou l'autre de ses deux positions stables.Advantageously, said spacer is secured to the lever, and is disposed between the flexible arms. The cover of the device preferably includes a cavity in which the handle can be housed when it is in one of its stable positions.
The device is advantageously reversible depending on whether the lever occupies one or the other of its two stable positions.

De préférence le levier est pourvu d'un poussoir, et le capot est fermé lorsque le levier est dans sa position basse.Preferably the lever is provided with a pusher, and the cover is closed when the lever is in its low position.

D'autres avantages et caractéristiques de la présente invention ressortiront plus clairement de la description ci-dessous d'un mode de réalisation préférée donné à titre d'exemple non limitatif et représenté dans les différentes phases de son fonctionnement par les dessins annexés dans lesquels :

  • la figure 1 représente une vue en perspective éclatée du dispositif selon l'invention prévu pour être adapté sur un disjoncteur modulaire dont la manette de commande manuelle est en position d'ouverture,
  • la figure 2 représente une vue en perspective éclatée du dispositif selon l'invention prévu pour être adapté sur un disjoncteur modulaire dont la manette de commande manuelle est en position de fermeture,
  • la figure 3A représente une vue en perspective partiellement coupée du dispositif selon l'invention dont la manette de commande manuelle est en position d'ouverture, le levier de ce dispositif se trouvant dans sa première position déverrouillée,
  • la figure 3B représente une vue frontale partiellement coupée illustrant le dispositif dans la position représentée par la figure 3A,
  • la figure 3C représente une vue latérale en élévation, partiellement coupée, du dispositif selon l'invention dans la position représentée par la figure 3A,
  • la figure 4A représente une vue similaire à celle de la figure 3A dans laquelle le levier du dispositif se trouve dans sa seconde position verrouillée, ce dispositif étant par ailleurs cadenassé,
  • la figure 4B représente une vue similaire à celle de la figure 3B dans laquelle le levier du dispositif se trouve dans la position représentée par la figure 4A,
  • la figure 4C représente une vue latérale en élévation, partiellement coupée, du dispositif selon l'invention dans la position représentée par la figure 4A,
  • la figure 5A représente une vue similaire à celles des figures 3A et 4A et dans laquelle la manette de commande manuelle occupe une position intermédiaire entre ses deux positions stables,
  • la figure 5B représente une vue similaire à celles des figures 3B et 4B dans laquelle le dispositif se trouve dans la position représentée par la figure 5A,
  • la figure 5C représente une vue latérale en élévation, partiellement coupée, du dispositif selon l'invention dans la position représentée par la figure 5A, et
  • la figure 6 représente une vue en perspective de l'épingle de verrouillage du dispositif selon l'invention.
Other advantages and characteristics of the present invention will emerge more clearly from the description below of a preferred embodiment given by way of nonlimiting example and represented in the various phases of its operation by the appended drawings in which:
  • FIG. 1 represents an exploded perspective view of the device according to the invention intended to be adapted on a modular circuit breaker whose manual control lever is in the open position,
  • FIG. 2 represents an exploded perspective view of the device according to the invention intended to be adapted on a modular circuit breaker, the manual control lever of which is in the closed position,
  • FIG. 3A represents a partially cut perspective view of the device according to the invention, the manual control lever of which is in the open position, the lever of this device being in its first unlocked position,
  • FIG. 3B represents a partially cut front view illustrating the device in the position represented by FIG. 3A,
  • FIG. 3C represents a side view in elevation, partially cut away, of the device according to the invention in the position represented by FIG. 3A,
  • FIG. 4A represents a view similar to that of FIG. 3A in which the lever of the device is in its second locked position, this device being moreover padlocked,
  • FIG. 4B represents a view similar to that of FIG. 3B in which the lever of the device is in the position represented by FIG. 4A,
  • FIG. 4C represents a side elevation view, partially cut away, of the device according to the invention in the position represented by FIG. 4A,
  • FIG. 5A represents a view similar to that of FIGS. 3A and 4A and in which the manual control lever occupies an intermediate position between its two stable positions,
  • FIG. 5B represents a view similar to those of FIGS. 3B and 4B in which the device is in the position represented by FIG. 5A,
  • FIG. 5C represents a side elevation view, partially cut away, of the device according to the invention in the position represented by FIG. 5A, and
  • Figure 6 shows a perspective view of the locking pin of the device according to the invention.

En référence aux figures, et plus particulièrement aux figures 1 et 2, le dispositif de cadenassage 10 est prévu pour être adapté par-dessus la manette de commande manuelle 11 d'un appareil électrique modulaire tel qu'un disjoncteur 12. Selon que cette manette est basculée dans l'une ou l'autre de ses positions stables, à savoir dans sa position d'ouverture (voir figure 1) ou dans sa position de fermeture (voir figure 2) le dispositif de cadenassage est positionné dans un sens ou dans le sens inverse. On verra par la suite que le blocage de la manette et le cadenassage du dispositif, lorsque ce blocage est accompli, ne peuvent être réalisés que si la manette se trouve effectivement dans une de ses positions stables et sont interdits si elle se trouve dans une position intermédiaire.Referring to the figures, and more particularly to Figures 1 and 2, the padlocking device 10 is provided to be adapted over the manual control lever 11 of a modular electrical device such as a circuit breaker 12. Depending on whether this lever is tilted in one or other of its stable positions, namely in its open position (see Figure 1) or in its closed position (see Figure 2) the padlocking device is positioned in one direction or in the opposite direction. We will see later that the blocking of the lever and the padlocking of the device, when this blocking is accomplished, can only be achieved if the lever is actually in one of its stable positions and are prohibited if it is in a position intermediate.

En vue de ce blocage, le dispositif comporte, comme le montrent plus particulièrement les figures 3A, 3B, 3C; 4A, 4B, 4C et 5A, 5B, 5C, un capot 13 comprenant une cavité 14 dans laquelle peut être logée la manette de commande manuelle 11, un levier 15 mobile entre une première position déverrouillée (voir figures 3A, B et C) et une seconde position verrouillée (voir figures 4A, B et C), et une épingle de verrouillage 16 montée dans un logement disposé entre la cavité 14 et le levier 11.In view of this blocking, the device comprises, as shown more particularly in FIGS. 3A, 3B, 3C; 4A, 4B, 4C and 5A, 5B, 5C, a cover 13 comprising a cavity 14 in which the manual control lever 11 can be housed, a lever 15 movable between a first unlocked position (see FIGS. 3A, B and C) and a second locked position (see FIGS. 4A, B and C), and a locking pin 16 mounted in a housing disposed between the cavity 14 and the lever 11.

Le levier 15 est équipé d'un poussoir 17 qui permet à l'utilisateur de le déplacer de sa position haute, dite première position déverrouillée, dans sa position basse, dite seconde position verrouillée, et réciproquement. Il comporte par ailleurs une ouverture 18 dont les dimensions sont sensiblement égales à celles d'au moins une ouverture 19 ménagée à travers le capot, de telle manière que, lorsque le levier est amené dans sa position basse (voir figures 4A, B et C), les ouvertures 18 et 19 se trouvent en regard l'une de l'autre et il devient possible de cadenasser le dispositif en passant l'anse 20 d'un cadenas 21 dans ces ouvertures. Dans l'exemple de réalisation représenté, le capot comporte deux éléments de parois parallèles 22 et 23 (voir figure 2) pourvus chacun d'une ouverture 19, et le levier 15 est agencé pour pouvoir coulisser entre ces éléments qui lui servent de guides lorsqu'il est déplacé entre ses deux positions définies ci-dessus. Le levier comporte par ailleurs un écarteur 24 (voir figures 3B, 4B et 5B) dont le rôle sera décrit ci-après.The lever 15 is equipped with a pusher 17 which allows the user to move it from its high position, called the first unlocked position, to its low position, called the second locked position, and vice versa. It also comprises an opening 18 whose dimensions are substantially equal to those of at least one opening 19 formed through the cover, so that when the lever is brought into its low position (see FIGS. 4A, B and C ), the openings 18 and 19 are located opposite one another and it becomes possible to padlock the device by passing the handle 20 of a padlock 21 in these openings. In the embodiment shown, the cover comprises two parallel wall elements 22 and 23 (see FIG. 2) each provided with an opening 19, and the lever 15 is arranged to be able to slide between these elements which serve as guides when 'it is moved between its two positions defined above. The lever also includes a spacer 24 (see Figures 3B, 4B and 5B) whose role will be described below.

La manette de commande manuelle 11 est solidaire d'un tambour 25, rotatif autour d'un axe solidaire du boîtier de l'appareil électrique, et qui comporte, d'une manière connue en soi, deux trous de plombage 26. L'épingle de verrouillage, qui est représentée plus en détail et agrandie par la figure 6, comporte un élément central 27 en forme de U, dont les deux branches 27a et 27b sont prolongées respectivement par deux bras latéraux 28a et 28b portant à leurs extrémités deux ergots 29a et 29b. Ces deux ergots sont agencés pour s'engager respectivement dans les deux trous de plombage 26, lorsque d'une part la manette 11 est dans l'une de ses positions stables et d'autre part, lorsque le poussoir 17 est amené dans sa position basse. Dans cette position, l'écarteur 24 mentionné ci-dessus, qui se trouvait initialement (voir fig. 3B) dans une position haute et entre les bras flexibles 28a et 28b, se trouve dans une position basse, ce qui a pour effet d'écarter lesdits bras et de repousser les ergots 29a et 29b dans les trous de plombage. De ce fait, la manette 11 est bloquée en position et, puisque le poussoir se trouve en position basse, le cadenas peut être passé dans les ouvertures 18 et 19 juxtaposées. Le but recherché est donc pleinement atteint : la manette est verrouillée d'une manière absolument sûre puisque le cadenas est en place, empêchant en outre tout accès à la manette.The manual control lever 11 is integral with a drum 25, rotatable about an axis integral with the housing of the electrical appliance, and which comprises, in a manner known per se, two sealing holes 26. The pin locking, which is shown in more detail and enlarged by Figure 6, comprises a central element 27 in the shape of a U, the two branches 27a and 27b of which are respectively extended by two lateral arms 28a and 28b carrying at their ends two lugs 29a and 29b. These two pins are arranged to engage respectively in the two sealing holes 26, when on the one hand the lever 11 is in one of its stable positions and on the other hand, when the pusher 17 is brought into its position low. In this position, the spacer 24 mentioned above, which was initially (see fig. 3B) in a high position and between the flexible arms 28a and 28b, is in a low position, which has the effect of spread said arms and push pins 29a and 29b back into the sealing holes. Therefore, the lever 11 is locked in position and, since the pusher is in the low position, the padlock can be passed through the openings 18 and 19 juxtaposed. The desired goal is therefore fully achieved: the joystick is locked in an absolutely secure manner since the padlock is in place, further preventing any access to the joystick.

La description ci-dessus qui correspond à un verrouillage de la manette et à un blocage en position du dispositif de cadenassage dans une position telle que représentée par la figure 1, s'applique bien entendu à la position représentée par la figure 2. Les fonctions des pièces mobiles restent les mêmes.The above description which corresponds to a locking of the lever and to a locking in position of the padlocking device in a position as represented by FIG. 1, applies of course to the position represented by FIG. 2. The functions moving parts remain the same.

Les figures 5A, 5B et 5C illustrent un cas particulier où la manette 11 se trouve accidentellement dans une position intermédiaire entre ses positions stables. L'élément central 27 de l'épingle de verrouillage est en fait bloqué dans un espace 30 de telle manière qu'il ait un certain jeu. Il joue le rôle d'un palpeur susceptible de détecter la position intermédiaire de la manette 11. En effet, si cette manette se trouve dans une position autre que ses positions stables, l'élément central 27 ou palpeur bute contre cette manette lorsque le dispositif de cadenassage est mis en place, ce qui a pour effet d'incliner l'épingle. En raison de cette inclinaison, les ergots 29a et 29b ne se trouvent plus en face des trous de plombage et ne peuvent donc pas s'engager dans ces trous lorsque le poussoir 17 est abaissé. Le verrouillage de la manette n'est plus possible et le dispositif de cadenassage ne peut être solidarisé de l'appareil électrique. Le but recherché ne peut pas être atteint dans ce cas. En conséquence, le palpeur de l'épingle constitue un détecteur de défaut qui empêche un verrouillage de la manette et un blocage du dispositif de cadenassage si ladite manette n'occupe pas une de ses deux positions stables.FIGS. 5A, 5B and 5C illustrate a particular case where the lever 11 is accidentally in an intermediate position between its stable positions. The central element 27 of the locking pin is in fact locked in a space 30 in such a way that it has a certain play. It plays the role of a feeler capable of detecting the intermediate position of the lever 11. In Indeed, if this lever is in a position other than its stable positions, the central element 27 or feeler abuts against this lever when the padlocking device is put in place, which has the effect of tilting the pin. Because of this inclination, the pins 29a and 29b are no longer in front of the sealing holes and therefore cannot engage in these holes when the pusher 17 is lowered. Locking the lever is no longer possible and the padlocking device cannot be secured to the electrical appliance. The goal cannot be reached in this case. Consequently, the pin feeler constitutes a fault detector which prevents locking of the lever and blocking of the padlocking device if said lever does not occupy one of its two stable positions.

Le capot 13 et le levier 15 sont de préférence réalisés en matière synthétique moulée par injection. L'épingle est de préférence en acier. Leur forme et leurs dimensions peuvent être adaptés à la géométrie des appareils électriques concernés. Il est à noter que le capot est entièrement fermé lorsque le poussoir est enfoncé, le levier étant dans sa position basse, rendant l'accès à l'épingle 16 impossible.The cover 13 and the lever 15 are preferably made of injection molded synthetic material. The pin is preferably made of steel. Their shape and dimensions can be adapted to the geometry of the electrical devices concerned. It should be noted that the cover is fully closed when the pusher is pressed, the lever being in its low position, making access to the pin 16 impossible.

Claims (6)

  1. A padlocking device (10) of a manual operating handle (11) of a modular electrical apparatus, notably a circuit breaker (12), wherein the handle (11) has two stable positions corresponding respectively to opening and closing of the apparatus, the case of the apparatus (12) being provided with sealing holes (26), and the padlocking device (10) comprising :
    - a locking pin (16) having two flexible arms (28a, 28b) equipped with spigots (29a, 29b) arranged to enter the sealing holes (26) when said handle (11) is in one of its stable positions, the padlocking device being arranged to be fitted on the case when the handle (11) is in one or the other of its stable positions,
    - a sensor to detect an intermediate position between said stable positions of the handle (11) and to prevent said padlocking in this position,
    - a lever (15) movable between a first up position and a second down position, said lever (15) comprising a first opening (18) allowing a locking padlock (21) to pass when the lever (15) is moved to the second position,
    - and a separator (24) of said lever (15) to move the flexible arms (28a, 28b) apart when the lever (15) is moved from the first position to the second position, and to make the spigots (29a, 29b) enter said sealing holes (26),
    characterized in that :
    - the lever (15) is supported by a cover (13) which is provided with a second opening (19) aligned with the first opening (18) when the lever (15) is in the second position and designed for the locking padlock (21) to be passed through,
    - the locking pin (16) is fitted in the cover (13) and comprises a U-shaped central element (27) constituting said sensor, the branches (27a, 27b) of the U being extended by said flexible arms (28a, 28b) whose ends bear said spigots (29a, 29b),
    - a housing of said pin (16) presents sufficient clearance to enable the pin to occupy a more or less inclined position if the handle (11) is in a position other than one of its two stable positions.
  2. The device according to claim 1, characterized in that said separator (24) is securedly united to the lever (15) and is located between the flexible arms (28a, 28b).
  3. The device according to claim 1, characterized in that the cover (13) comprises a cavity (14) in which the handle (11) can be housed when it is in one of its stable positions.
  4. The device according to claim 3, characterized in that it is reversible depending on whether the handle (11) occupies one or the other of its two stable positions.
  5. The device according to claim 1, characterized in that the lever (15) is provided with a pushbutton (17).
  6. The device according to claim 5, characterized in that the cover (13) is closed when the lever (15) is in its down position.
EP93420496A 1992-12-21 1993-12-13 Locking device with a padlock of a manual control lever of a modular electric switching device Expired - Lifetime EP0604331B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9215580A FR2699728B1 (en) 1992-12-21 1992-12-21 Padlocking device for a manual control lever of a modular electrical device.
FR9215580 1992-12-21

Publications (2)

Publication Number Publication Date
EP0604331A1 EP0604331A1 (en) 1994-06-29
EP0604331B1 true EP0604331B1 (en) 1997-08-06

Family

ID=9437006

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93420496A Expired - Lifetime EP0604331B1 (en) 1992-12-21 1993-12-13 Locking device with a padlock of a manual control lever of a modular electric switching device

Country Status (5)

Country Link
EP (1) EP0604331B1 (en)
AT (1) ATE156628T1 (en)
DE (1) DE69312892T2 (en)
ES (1) ES2106993T3 (en)
FR (1) FR2699728B1 (en)

Cited By (1)

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Publication number Priority date Publication date Assignee Title
EP2388790A1 (en) 2010-05-19 2011-11-23 Eaton Industries GmbH Circuit breaker with locking device

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DE19917859A1 (en) * 1999-04-20 2000-10-26 Siemens Ag Switch or control-gear blocking device
FR2801687B1 (en) 1999-11-29 2002-01-11 Eastman Kodak Co CINEMATOGRAPHIC RECORDING METHOD AND DEVICE FOR REDUCING RECORDING DEFECTS
JP3893824B2 (en) * 1999-12-27 2007-03-14 松下電器産業株式会社 Lever switch and detection device using the same
US6476698B1 (en) * 2000-03-17 2002-11-05 General Electric Company Convertible locking arrangement on breakers
ATE468596T1 (en) * 2001-03-21 2010-06-15 Brady Worldwide Inc BREAK SWITCH LOCKOUT ASSEMBLY
DE20304414U1 (en) * 2003-03-19 2004-07-29 Weidmüller Interface Gmbh & Co. Switching device, e.g. relay, with connections for electrical conductor, has adapter for attaching connection terminals with insulating housing for insulation penetrating blade/terminal contacts
DE102009017059B3 (en) * 2009-04-09 2010-07-08 Siemens Aktiengesellschaft Arrangement for blocking an actuating element of an electrical installation device and electrical installation device
GB0919366D0 (en) * 2009-11-05 2009-12-23 Schneider Electric Ltd Safety device for electrical distribution boards
CN108511292B (en) * 2017-02-24 2019-12-31 上海良信电器股份有限公司 Padlock mechanism of electric operating device
CN112509889B (en) * 2020-12-21 2025-03-11 浙江俊朗电气自动化股份有限公司 Molded case circuit breaker handle locking device
FR3121546A1 (en) * 2021-03-30 2022-10-07 Schneider Electric Industries Sas Locking system for circuit breaker

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FR2412154A1 (en) * 1977-12-15 1979-07-13 Merlin Gerin Locking mechanism for miniature circuit breaker operating handle - consists of U=shaped piece and pivoting locking lever fitting over operating handle
FR2424619A1 (en) * 1978-04-24 1979-11-23 Merlin Gerin PADLOCKING DEVICE FOR A HANDLE OF AN ELECTRIC CIRCUIT BREAKER
GB2152286A (en) * 1983-12-23 1985-07-31 Midland Electric Mfg Co Ltd Switch locking device
FR2569046B1 (en) * 1984-08-08 1986-11-28 Merlin Gerin DEVICE FOR LOCKING A MINIATURE CIRCUIT BREAKER

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2388790A1 (en) 2010-05-19 2011-11-23 Eaton Industries GmbH Circuit breaker with locking device
DE102010020987A1 (en) 2010-05-19 2011-11-24 Eaton Industries Gmbh Circuit breaker with locking device
DE102010020987B4 (en) * 2010-05-19 2012-04-05 Eaton Industries Gmbh Circuit breaker with locking device

Also Published As

Publication number Publication date
ES2106993T3 (en) 1997-11-16
DE69312892D1 (en) 1997-09-11
FR2699728B1 (en) 1995-03-17
FR2699728A1 (en) 1994-06-24
DE69312892T2 (en) 1998-01-29
EP0604331A1 (en) 1994-06-29
ATE156628T1 (en) 1997-08-15

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