EP0612090A2 - Rotation operating device for a circuit breaker - Google Patents

Rotation operating device for a circuit breaker Download PDF

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Publication number
EP0612090A2
EP0612090A2 EP94420036A EP94420036A EP0612090A2 EP 0612090 A2 EP0612090 A2 EP 0612090A2 EP 94420036 A EP94420036 A EP 94420036A EP 94420036 A EP94420036 A EP 94420036A EP 0612090 A2 EP0612090 A2 EP 0612090A2
Authority
EP
European Patent Office
Prior art keywords
circuit breaker
housing
integral
handle
drive nut
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.)
Granted
Application number
EP94420036A
Other languages
German (de)
French (fr)
Other versions
EP0612090A3 (en
EP0612090B1 (en
Inventor
Olivier Bernard
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
Merlin Gerin SA
Schneider Electric SE
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from FR9301825A external-priority patent/FR2701593B1/en
Priority claimed from FR9301824A external-priority patent/FR2701592B1/en
Application filed by Merlin Gerin SA, Schneider Electric SE filed Critical Merlin Gerin SA
Publication of EP0612090A2 publication Critical patent/EP0612090A2/en
Publication of EP0612090A3 publication Critical patent/EP0612090A3/en
Application granted granted Critical
Publication of EP0612090B1 publication Critical patent/EP0612090B1/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
    • H01H9/22—Interlocking, locking, or latching mechanisms for interlocking between casing, cover, or protective shutter and mechanism for operating contacts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/50—Manual reset mechanisms which may be also used for manual release
    • H01H71/56—Manual reset mechanisms which may be also used for manual release actuated by rotatable knob or wheel
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/50—Manual reset mechanisms which may be also used for manual release
    • H01H71/56—Manual reset mechanisms which may be also used for manual release actuated by rotatable knob or wheel
    • H01H2071/565—Manual reset mechanisms which may be also used for manual release actuated by rotatable knob or wheel using a add on unit, e.g. a separate rotary actuator unit, mounted on lever actuated circuit breakers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/02—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch
    • H01H3/08—Turn knobs
    • H01H3/10—Means for securing to shaft of driving mechanism

Definitions

  • the present invention relates to a rotary control device for a circuit breaker, in particular a three-phase circuit breaker of the industrial type, this circuit breaker comprising a front closing faceplate provided with an opening traversed by a pivoting crank pin which can occupy at least two extreme stable positions, this device comprising a housing mounted on said faceplate, a rotary handle integral with this housing and a mechanism for coupling said handle and said crankpin.
  • circuit breakers and in particular three-phase industrial circuit breakers, are usually housed in housings whose front closure plate, called faceplate, has an elongated opening crossed by a pivoting crankpin which can occupy two stable positions corresponding respectively to the opening and when the circuit breaker closes, and a central intermediate position which indicates a fault.
  • These boxes are sometimes mounted in an electrical box or panel with a door.
  • the drawback of known devices of this type lies in the fact that they do not comprise effective safety members making it possible to prevent a mismatched mounting of the two coupled control means, namely the crank pin and the rotary handle.
  • a first object of the invention consists in producing a rotary control device for the crank pin of a circuit breaker ensuring the concordance between the state of the circuit breaker and that of the rotary control device.
  • the coupling mechanism comprises for this purpose polarization means arranged to prevent mounting of said device in mismatched state with the circuit breaker.
  • said mechanism comprises a drive nut movable in rotation with said rotary handle and a drive fork pivoting about a fixed axis and mechanically coupled to said drive nut by an eccentric pin carried by the latter and engaged in an oblong housing formed in said drive fork
  • said polarizing means comprise an opening formed in said drive fork in which is engaged said crank pin of the circuit breaker when the circuit breaker and the rotary control device are in state concordance, as well as a plate integral with said fork and at least partially bordering said opening.
  • it may include door locking means associated with said coupling mechanism.
  • it may comprise means of locking by a lock, in particular a lock of the barrel type.
  • a development of the invention also relates to an extended rotary control for a circuit breaker, in particular an industrial circuit breaker, comprising an operating pin mounted between its rotary handle and its housing.
  • Rotary controls of this type are already known. However, they have a significant defect due to the fact that the operating axis, rigidly coupled to the housing, does not allow the take-up of the manufacturing clearances and the compensation of the dispersions on the dimensions of realization of the electrical panels. The mounting of these controls is sometimes made difficult and requires interventions to correct these clearances and / or these deviations.
  • a second object of the invention consists in producing a rotary control for a circuit breaker allowing compensation for alignment errors due to gravity and dispersions on the dimensions of the tables.
  • the extended rotary control comprises for this purpose an elastic device for refocusing the operating axis, and a socket which provides mechanical coupling between the operating axis and a drive nut of the housing.
  • said socket comprises a first substantially cylindrical section which is housed with play in a frustoconical central recess of the drive nut.
  • said first section has a toothing formed at the periphery of a region of its end and said drive nut also has a toothing, these two toothing being arranged to mesh with play.
  • FIG 1 shows a perspective view of a circuit breaker 10 whose housing 11 is closed on its front face by a faceplate 12 on which is mounted a device rotary control 13.
  • This device comprises a housing 14 which contains a coupling mechanism between a pivoting crank pin of the circuit breaker and a rotary handle 15 mounted at the front of this housing. Each position of the handle corresponds to a position of the crankpin and to a state of the circuit breaker.
  • Figures 1A, 1B and 1C respectively represent three positions of the handle corresponding to three states of the circuit breaker.
  • the circuit breaker In the position shown in Figure 1A, the circuit breaker is in its open state.
  • the handle 15 is oriented towards the mark O on the front face of the housing 14.
  • the circuit breaker In the position represented by FIG. 1B, the circuit breaker is in its tripped state on fault.
  • the handle 15 is oriented towards the mark D on the front face of the housing 14.
  • FIG. 1C the circuit breaker is in its closed state.
  • the handle 15 is oriented towards the mark F on the front face of the housing.
  • FIG. 2 shows a perspective view illustrating the coupling mechanism housed in the housing 14.
  • the handle 15 is mounted on an axis 16 and is integral with a drive nut 17 which carries an eccentric pin 18 engaged in an oblong housing 19 of a drive fork 20 pivoting about a fixed axis 21 integral with the housing 14.
  • the drive fork 20 consists of a first element 20a which cooperates with the eccentric pin 18 and of a second element 20b mounted parallel to the first and rigidly linked to the latter.
  • the element 20b has an opening 22 in which the crank pin of the circuit breaker is engaged.
  • the rotation of the handle causes the rotation of the drive nut 17 and the eccentric 18 which it carries. Therefore, the eccentric rotates the drive fork 20 by acting on said first element 20a of this fork.
  • said first element 20a and said second element 20b of this drive fork are rigidly linked, they pivot simultaneously in a plane perpendicular to the axis 21.
  • the opening 22 defines a housing in which is engaged the crankpin which is subjected to a thrust on the part of the walls surrounding the opening and which is therefore tilted in one or the other of the positions defined with reference to FIGS. 1A, 1B and 1C.
  • FIGS. 2A, 2B, 2C and 2D represent sectional views illustrating the different cases which may arise during the installation of the rotary control device on the faceplate of a circuit breaker.
  • the handle 15 is on the mark O, which corresponds to the open position of the device.
  • the crank pin 30 of the circuit breaker is also in the position corresponding to the open state of this circuit breaker. Therefore, the opening 22 of the element 20b of the drive fork 20 is in a position such that this crankpin can engage there freely.
  • the handle 15 is on the mark F, which corresponds to the closed position of the device.
  • the crankpin 30 is in the same position as before, which corresponds to the open state of the circuit breaker.
  • the opening 22 is offset from that previously occupied. Consequently, the crank pin 30 cannot be engaged in this opening.
  • This interference zone 31 is constituted by a keying plate 31 ′ which is integral with the element 20b and which borders one side of the opening 22.
  • the handle is on the mark F, which corresponds to the closed position of the device.
  • the crankpin 30 is also in the position corresponding to the closed state of the circuit breaker. Therefore, the opening 22 of the element 20b of the drive fork 20 is in a position capable of accommodating this crankpin. There is a concordance of position due to the concordance of the states.
  • the handle 15 is on the mark O, which corresponds to the open position of the device.
  • the crankpin 30 is in the position corresponding to the closed state of the circuit breaker. Therefore, the opening 22 is located in a position offset from that which would allow the introduction of the pin.
  • this implementation is prohibited when there is a discrepancy between states.
  • This set of components which cooperate to authorize the setting up of the rotary control device when there is a concordance of states and to prohibit this setting up when there is a mismatch, constitutes a keying system.
  • the rotary control device is also equipped with door locking means arranged to allow, if necessary, to lock a door of a cabinet inside which a circuit breaker is mounted.
  • door locking means arranged to allow, if necessary, to lock a door of a cabinet inside which a circuit breaker is mounted.
  • FIGS. 3A, 3B, 3C, 3D and 3E These means are illustrated by FIGS. 3A, 3B, 3C, 3D and 3E. They comprise a lock 40 pivoting about a fixed axis 41 and provided at one of its ends with a spout 42 arranged to cooperate with a stop 43 secured to the drive nut 17 secured to the rotary control handle.
  • the other end of the latch 40 has a stop 44 arranged to cooperate with a hook 45 secured to said door of the box containing the circuit breaker.
  • the lock 40 is permanently biased by a compression spring 46 which tends to tilt it in the direction of the arrow A, towards a position represented by FIG. 3D.
  • the door lock is an optional function which can be activated or not by the end user.
  • the latch 40 can be equipped with two screws 47 and 48 arranged to cooperate, if necessary, with two fixed stops 49 and 50 secured to the housing 14 of the rotary control device.
  • the screw 48 bears against the stop 50 and prevents the latch 40 from tilting in the direction of arrow A.
  • the stop 44 remains inside the housing 14 and the spout 42 does not interfere with the circular path of the stop 43 when the handle is turned. There is therefore neither door lock nor handle lock.
  • the screw 48 has been removed, but the screw 47 is maintained.
  • the latch 40 has tilted so that the screw 47 bears against the stop 49.
  • the stop 44 is engaged in an opening 51 of the housing 14 and cooperates with the hook 45 to lock the circuit breaker cabinet door.
  • the screw 47 and the stop 49 prevent complete tilting of the latch 40 and, therefore, preserve a clearance between the spout 42 and the stop 43. In this case, the door locking function is ensured, but not the handle lock function.
  • FIGS. 3C, 3D and 3E When the two screws 47 and 48 are removed, complete pivoting of the lock 40 is theoretically possible. In practice, however, there are three distinct cases illustrated respectively by FIGS. 3C, 3D and 3E.
  • the hook 45 of the cabinet door has the same function as the screw 47 associated with the stop 49, since it prevents the complete tilting of the lock 40.
  • this hook 45 is in the position shown when the cabinet door is closed. It serves as a stop stop preventing the complete pivoting of the lock 40 and to preserve a clearance between the spout 42 and the stop 43 to allow the free rotation of the handle coupled to the drive nut 17.
  • the rotary control handle can be freely operated.
  • Figure 3E shows that the cabinet door can only be opened if the circuit breaker is in the open position, when the two screws 47 and 48 are removed.
  • the movable elements are in the position shown in Figure 3D.
  • the stop 43 of the drive nut 17 which has a rounded edge 43a, cooperates with a ramp 52 formed on the blank of the lock 40, at the rear of the spout 42 to tilt this lock and release the hook 45 from the door.
  • the rotation of the handle in the direction of arrow C corresponds to an operation tending to bring this handle into the open position of the circuit breaker.
  • the device can be provided with locking means by a lock.
  • locking means by a lock.
  • the mode of implementation of this additional function is described with reference to FIGS. 4A, 4B, 4C and 4D.
  • a lock 60 of the barrel type is mounted inside the box 14. This lock comprises a rotary bolt 61 which is arranged to cooperate with the element 20b of the drive fork.
  • FIG. 4A represents the lock 60 in the unlocked position, the rotary control device being in the closed position which corresponds to the closed state of the circuit breaker.
  • FIG. 4B shows the lock 60 in the locked position, the rotary control device always being in the closed position.
  • the bolt 61 is engaged in a notch 62 formed in the drive fork, and more exactly in a part 20C connecting the two elements 20a and 20b, and perpendicularly to the latter. It prevents rotation of the drive nut 17 since the element 20a is blocked and blocks the eccentric pin 18.
  • FIGS 4C and 4D illustrate the operation of the lock when the rotary control device is in the open position.
  • a lock 60 'of the barrel type which could be identical to the lock 60 shown in Figures 3A and 3B, comprises a bolt 61'. In both cases, the rotary control device is in the open position. In the example of FIG. 4C, the lock 60 'is open and the bolt 61' does not interfere with the path described by the part 20C of the drive fork 20 when the drive nut 17 is operated.
  • the locking of the drive nut by the bolt could be obtained by means different from the support of this bolt against the part 20C.
  • the bolt could, for example, cooperate with one or other of the parts 20a or 20b.
  • the extended rotary control 110 comprises an operating axis 111, a rotary handle 112 mounted at the free end of this axis, a housing 113 to which the operating axis 111 is coupled, at its other end , by means of an elastic centering device 114.
  • the handle 112 is associated with a centering ring 115 which has a conical inner surface 116 defining a circular ramp on which the rounded end 117 of the operating axis 111 is supported, at the start of the closing phase (see FIG. 6A) of a door 118 on which said handle 112 is mounted.
  • the elastic recentering device 114 is coupled to a drive nut 119 of the housing 113, which is provided with a frustoconical central recess 120.
  • This device also comprises a socket 121 comprising a first substantially cylindrical section 122, of reduced section, and a second substantially cylindrical section 123, of wide section.
  • the first section 122 is engaged in the frustoconical central recess 120 of the drive nut 119 to which it is fixed by a screw 124 screwed in a threaded bore 125 arranged axially and formed in said first section 122 and having an enlarged head 126 which bears on the edges 127 of a circular clearance 128 produced in the drive nut, on the side opposite to the frustoconical recess 120.
  • the second section 123 comprises a recess of polygonal section, for example square, arranged to receive one end of the operating axis 111.
  • the operating axis 111 can be angularly struggled as shown in the Figure 6B.
  • a compression spring 129 is mounted between a flange 130 of the sleeve 121 and a support ring 131 mounted coaxially on the drive nut.
  • a protective shell 132 covers this assembly.
  • the spring has the effect of generating a thrust tending to move the sleeve 121 away from the drive nut. As these two elements are linked by the screw 124, this distance is counteracted and the effect obtained is a refocusing of the sleeve relative to the drive nut, when the operating axis is released after having undergone an angular displacement.
  • the rotation of the drive nut is obtained by means of a first toothing 133 formed at the periphery of the end zone of the first section 122 of the sleeve 121, which cooperates with a second toothing 134, formed at the bottom of the recess frustoconical central 120 (FIGS. 7A and 7B).
  • a relatively large clearance is provided between the two teeth so that they remain engaged even when the operating axis is angularly offset.
  • the operating axis can be angularly offset, while remaining coupled to the drive nut. Thanks to the compression spring, the operating axis tends to be positioned in an axial direction as soon as it is released by opening the door of the switchboard, after having undergone an angular offset and can return to its offset position at the time of closing. from this door.

Landscapes

  • Switch Cases, Indication, And Locking (AREA)
  • Lock And Its Accessories (AREA)
  • Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
  • Breakers (AREA)

Abstract

The invention relates to a rotary operating device for a circuit breaker. The device includes a rotary handle (15) mounted on a casing (14) containing a mechanism for coupling between a pivoting crankpin of the circuit breaker and the said handle. This handle is integral with a semicircular drive groove (17) which carries an eccentric pin (18) acting on a drive fork (20) which pivots about a fixed shaft (21). This fork is equipped with an opening (22) in order to house the said crankpin and with an indexing plate (31'). A pivoting bar (33) constitutes, with the opening (22) and the indexing plate (31') an indexing system preventing the rotary operating device being put in place when there is inconsistency between the state of the crankpin and that of the handle. <IMAGE>

Description

La présente invention concerne un dispositif de commande rotative pour un disjoncteur, notamment un disjoncteur triphasé du type industriel, ce disjoncteur comportant un plastron de fermeture frontale pourvu d'une ouverture traversée par un maneton pivotant pouvant occuper au moins deux positions extrêmes stables, ce dispositif comprenant un boîtier monté sur ledit plastron, une poignée rotative solidaire de ce boîtier et un mécanisme pour coupler ladite poignée et ledit maneton.The present invention relates to a rotary control device for a circuit breaker, in particular a three-phase circuit breaker of the industrial type, this circuit breaker comprising a front closing faceplate provided with an opening traversed by a pivoting crank pin which can occupy at least two extreme stable positions, this device comprising a housing mounted on said faceplate, a rotary handle integral with this housing and a mechanism for coupling said handle and said crankpin.

Les disjoncteurs connus, et en particulier les disjoncteurs industriels triphasés, sont habituellement logés dans des boîtiers dont la plaque de fermeture frontale, appelée plastron, comporte une ouverture allongée traversée par un maneton pivotant qui peut occuper deux positions stables correspondant respectivement à l'ouverture et à la fermeture du disjoncteur, et une position intermédiaire centrale qui indique un défaut. Ces boîtiers sont parfois montés dans un coffret ou tableau électrique muni d'une porte. Il existe un accessoire adaptable sur le plastron ou sur la porte du tableau et qui permet de commander le basculement du maneton par l'intermédiaire d'une poignée rotative. L'inconvénient des dispositifs connus de ce type réside dans le fait qu'ils ne comportent pas d'organes de sécurité efficaces permettant d'empêcher un montage en discordance des deux moyens de commande couplés, à savoir le maneton et la poignée rotative.Known circuit breakers, and in particular three-phase industrial circuit breakers, are usually housed in housings whose front closure plate, called faceplate, has an elongated opening crossed by a pivoting crankpin which can occupy two stable positions corresponding respectively to the opening and when the circuit breaker closes, and a central intermediate position which indicates a fault. These boxes are sometimes mounted in an electrical box or panel with a door. There is an accessory adaptable on the faceplate or on the switchboard door and which allows the crankpin to be controlled by means of a rotary handle. The drawback of known devices of this type lies in the fact that they do not comprise effective safety members making it possible to prevent a mismatched mounting of the two coupled control means, namely the crank pin and the rotary handle.

Un premier objet de l'invention consiste à réaliser un dispositif de commande rotative du maneton d'un disjoncteur garantissant la concordance entre l'état du disjoncteur et celui du dispositif de commande rotative.A first object of the invention consists in producing a rotary control device for the crank pin of a circuit breaker ensuring the concordance between the state of the circuit breaker and that of the rotary control device.

Le mécanisme de couplage comporte à cet effet des moyens de détrompage agencés pour empêcher un montage dudit dispositif en discordance d'état avec le disjoncteur.The coupling mechanism comprises for this purpose polarization means arranged to prevent mounting of said device in mismatched state with the circuit breaker.

Selon une forme de réalisation préférée, ledit mécanisme comporte une noix d'entraînement mobile en rotation avec ladite poignée rotative et une fourchette d'entraînement pivotant autour d'un axe fixe et couplée mécaniquement à ladite noix d'entraînement par une goupille excentrique portée par cette dernière et engagée dans un logement oblong ménagé dans ladite fourchette d'entraînement, et lesdits moyens de détrompage comportent une ouverture ménagée dans ladite fourchette d'entraînement dans laquelle est engagé ledit maneton du disjoncteur lorsque le disjoncteur et le dispositif de commande rotative sont en concordance d'état, ainsi qu'une plaque solidaire de ladite fourchette et bordant au moins partiellement ladite ouverture.According to a preferred embodiment, said mechanism comprises a drive nut movable in rotation with said rotary handle and a drive fork pivoting about a fixed axis and mechanically coupled to said drive nut by an eccentric pin carried by the latter and engaged in an oblong housing formed in said drive fork, and said polarizing means comprise an opening formed in said drive fork in which is engaged said crank pin of the circuit breaker when the circuit breaker and the rotary control device are in state concordance, as well as a plate integral with said fork and at least partially bordering said opening.

Selon une variante particulièrement avantageuse, il peut comporter des moyens de verrouillage de porte associés audit mécanisme de couplage.According to a particularly advantageous variant, it may include door locking means associated with said coupling mechanism.

Enfin, selon une autre variante avantageuse, il peut comporter des moyens de verrouillage par une serrure, notamment une serrure du type à barillet.Finally, according to another advantageous variant, it may comprise means of locking by a lock, in particular a lock of the barrel type.

Un développement de l'invention concerne également une commande rotative prolongée pour un disjoncteur, notamment un disjoncteur industriel, comportant un axe de manoeuvre monté entre sa poignée rotative et son boîtier.A development of the invention also relates to an extended rotary control for a circuit breaker, in particular an industrial circuit breaker, comprising an operating pin mounted between its rotary handle and its housing.

On connaît déjà des commandes rotatives de ce type. Elles présentent cependant un important défaut dû au fait que l'axe de manoeuvre, couplé rigidement au boîtier, ne permet pas le rattrapage des jeux de fabrication et la compensation des dispersions sur les cotes de réalisation des tableaux électriques. Le montage de ces commandes est parfois rendu difficile et nécessite des interventions pour corriger ces jeux et/ou ces écarts.Rotary controls of this type are already known. However, they have a significant defect due to the fact that the operating axis, rigidly coupled to the housing, does not allow the take-up of the manufacturing clearances and the compensation of the dispersions on the dimensions of realization of the electrical panels. The mounting of these controls is sometimes made difficult and requires interventions to correct these clearances and / or these deviations.

Un deuxième objet de l'invention consiste à réaliser une commande rotative pour un disjoncteur autorisant une compensation des défauts d'alignement dus à la gravité et les dispersions sur les cotes des tableaux.A second object of the invention consists in producing a rotary control for a circuit breaker allowing compensation for alignment errors due to gravity and dispersions on the dimensions of the tables.

La commande rotative prolongée comporte à cet effet un dispositif élastique de recentrage de l'axe de manoeuvre, et une douille qui assure un couplage mécanique entre l'axe de manoeuvre et une noix d'entraînement du boîtier.The extended rotary control comprises for this purpose an elastic device for refocusing the operating axis, and a socket which provides mechanical coupling between the operating axis and a drive nut of the housing.

Selon ce mode de réalisation, ladite douille comporte un premier tronçon sensiblement cylindrique qui est logé avec du jeu dans un évidement central tronconique de la noix d'entraînement.According to this embodiment, said socket comprises a first substantially cylindrical section which is housed with play in a frustoconical central recess of the drive nut.

De façon avantageuse, ledit premier tronçon comporte une denture ménagée à la périphérie d'une zone de son extrémité et ladite noix d'entraînement comporte également une denture, ces deux dentures étant agencées pour s'engrener avec du jeu.Advantageously, said first section has a toothing formed at the periphery of a region of its end and said drive nut also has a toothing, these two toothing being arranged to mesh with play.

D'autres avantages et caractéristiques de la présente invention ressortiront plus clairement de la description d'un mode réalisation préféré 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 est une vue en perspective d'un disjoncteur équipé d'un dispositif de commande rotative selon l'invention,
  • les figures 1A, 1B et 1C représentent respectivement trois positions de la poignée du dispositif selon l'invention, ces positions correspondant à trois états du disjoncteur,
  • la figure 2 représente une vue de dessous, en perspective représentant le mécanisme de couplage entre le maneton du disjoncteur et la poignée rotative du dispositif selon l'invention,
  • les figures 2A, 2B, 2C et 2D représentent des vues en coupe axiale illustrant le fonctionnement des moyens de détrompage du mécanisme de couplage de la figure 2,
  • les figures 3A, 3B, 3C, 3D et 3E représentent des vues partielles du dispositif selon l'invention illustrant le dispositif de verrouillage de porte d'un tableau électrique contenant un disjoncteur, et
  • les figures 4A, 4B, 4C et 4D illustrent le fonctionnement des moyens de verrouillage par une serrure, du mécanisme de couplage du dispositif selon l'invention.
  • la figure 5 est une vue en perspective de la commande rotative prolongée;
  • la figure 6A représente une vue schématique de la commande de la figure 5 au début de la phase de fermeture d'une porte sur laquelle est montée la poignée rotative,
  • la figure 6B représente une vue similaire à celle de la figure 6A à la fin de la phase de fermeture de ladite porte,
  • la figure 7A est une vue en coupe du dispositif élastique de recentrage dans la position correspondant au début de la phase de fermeture de ladite porte,
  • la figure 7B est une vue similaire à celle de la figure 7A à la fin de la phase de fermeture de ladite porte, et
  • la figure 8 est une vue de dessus du dispositif élastique de recentrage.
Other advantages and characteristics of the present invention will emerge more clearly from the description 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 is a perspective view of a circuit breaker fitted with a rotary control device according to the invention,
  • FIGS. 1A, 1B and 1C respectively represent three positions of the handle of the device according to the invention, these positions corresponding to three states of the circuit breaker,
  • FIG. 2 represents a bottom view, in perspective, showing the coupling mechanism between the crank pin of the circuit breaker and the rotary handle of the device according to the invention,
  • FIGS. 2A, 2B, 2C and 2D represent views in axial section illustrating the operation of the keying means of the coupling mechanism of FIG. 2,
  • FIGS. 3A, 3B, 3C, 3D and 3E represent partial views of the device according to the invention illustrating the door locking device of an electrical panel containing a circuit breaker, and
  • Figures 4A, 4B, 4C and 4D illustrate the operation of the means for locking by a lock, the coupling mechanism of the device according to the invention.
  • Figure 5 is a perspective view of the extended rotary control;
  • FIG. 6A represents a schematic view of the control of FIG. 5 at the start of the closing phase of a door on which the rotary handle is mounted,
  • FIG. 6B represents a view similar to that of FIG. 6A at the end of the closing phase of said door,
  • FIG. 7A is a sectional view of the elastic recentering device in the position corresponding to the start of the closing phase of said door,
  • FIG. 7B is a view similar to that of FIG. 7A at the end of the closing phase of said door, and
  • Figure 8 is a top view of the elastic recentering device.

La figure 1 représente une vue en perspective d'un disjoncteur 10 dont le boîtier 11 est fermé sur sa face frontale par un plastron 12 sur lequel est monté un dispositif de commande rotative 13. Ce dispositif comprend un boîtier 14 qui contient un mécanisme de couplage entre un maneton pivotant du disjoncteur et une poignée rotative 15 montée à l'avant de ce boîtier. Chaque position de la poignée correspond à une position du maneton et à un état du disjoncteur.Figure 1 shows a perspective view of a circuit breaker 10 whose housing 11 is closed on its front face by a faceplate 12 on which is mounted a device rotary control 13. This device comprises a housing 14 which contains a coupling mechanism between a pivoting crank pin of the circuit breaker and a rotary handle 15 mounted at the front of this housing. Each position of the handle corresponds to a position of the crankpin and to a state of the circuit breaker.

Les figures 1A, 1B et 1C représentent respectivement trois positions de la poignée correspondant à trois états du disjoncteur. Dans la position représentée par la figure 1A, le disjoncteur est dans son état ouvert. La poignée 15 est orientée vers le repère O de la face frontale du boîtier 14. Dans la position représentée par la figure 1B, le disjoncteur est dans son état déclenché sur défaut. La poignée 15 est orientée vers le repère D de la face frontale du boîtier 14. Dans la position représentée par la figure 1C, le disjoncteur est dans son état fermé. La poignée 15 est orientée vers le repère F de la face frontale du boîtier. A chacune de ces positions de la poignée correspond une position unique du maneton.Figures 1A, 1B and 1C respectively represent three positions of the handle corresponding to three states of the circuit breaker. In the position shown in Figure 1A, the circuit breaker is in its open state. The handle 15 is oriented towards the mark O on the front face of the housing 14. In the position represented by FIG. 1B, the circuit breaker is in its tripped state on fault. The handle 15 is oriented towards the mark D on the front face of the housing 14. In the position represented by FIG. 1C, the circuit breaker is in its closed state. The handle 15 is oriented towards the mark F on the front face of the housing. Each of these positions of the handle corresponds to a unique position of the crankpin.

La figure 2 représente une vue en perspective illustrant le mécanisme de couplage logé dans le boîtier 14. La poignée 15 est montée sur un axe 16 et est solidaire d'une noix d'entraînement 17 qui porte une goupille excentrique 18 engagée dans un logement oblong 19 d'une fourchette d'entraînement 20 pivotant autour d'un axe fixe 21 solidaire du boîtier 14. La fourchette d'entraînement 20 se compose d'un premier élément 20a qui coopère avec la goupille excentrique 18 et d'un second élément 20b monté parallèlement au premier et lié rigidement à ce dernier. L'élément 20b comporte une ouverture 22 dans laquelle est engagé le maneton du disjoncteur.2 shows a perspective view illustrating the coupling mechanism housed in the housing 14. The handle 15 is mounted on an axis 16 and is integral with a drive nut 17 which carries an eccentric pin 18 engaged in an oblong housing 19 of a drive fork 20 pivoting about a fixed axis 21 integral with the housing 14. The drive fork 20 consists of a first element 20a which cooperates with the eccentric pin 18 and of a second element 20b mounted parallel to the first and rigidly linked to the latter. The element 20b has an opening 22 in which the crank pin of the circuit breaker is engaged.

Grâce à ces composants, la rotation de la poignée provoque la rotation de la noix d'entraînement 17 et de l'excentrique 18 qu'elle porte. De ce fait, l'excentrique fait pivoter la fourchette d'entraînement 20 en agissant sur ledit premier élément 20a de cette fourchette. Comme ledit premier élément 20a et ledit second élément 20b de cette fourchette d'entraînement sont liés rigidement, ils pivotent simultanément dans un plan perpendiculaire à l'axe 21. L'ouverture 22 définit un logement dans lequel est engagé le maneton qui subit une poussée de la part des parois entourant l'ouverture et qui est de ce fait basculé dans l'une ou l'autre des positions définies en référence aux figures 1A, 1B et 1C.Thanks to these components, the rotation of the handle causes the rotation of the drive nut 17 and the eccentric 18 which it carries. Therefore, the eccentric rotates the drive fork 20 by acting on said first element 20a of this fork. As said first element 20a and said second element 20b of this drive fork are rigidly linked, they pivot simultaneously in a plane perpendicular to the axis 21. The opening 22 defines a housing in which is engaged the crankpin which is subjected to a thrust on the part of the walls surrounding the opening and which is therefore tilted in one or the other of the positions defined with reference to FIGS. 1A, 1B and 1C.

Ce mécanisme est construit de telle manière que le montage du dispositif de commande rotative ne soit possible que si le maneton et la poignée sont en concordance d'états. Les figures 2A, 2B, 2C et 2D représentent des vues en coupe illustrant les différents cas qui peuvent se présenter lors de la mise en place du dispositif de commande rotative sur le plastron d'un disjoncteur.This mechanism is constructed in such a way that the mounting of the rotary control device is only possible if the crank pin and the handle are in agreement of states. FIGS. 2A, 2B, 2C and 2D represent sectional views illustrating the different cases which may arise during the installation of the rotary control device on the faceplate of a circuit breaker.

Dans le cas de la figure 2A, la poignée 15 est sur le repère O, qui correspond à la position ouverte du dispositif. Le maneton 30 du disjoncteur se trouve également dans la position correspondant à l'état ouvert de ce disjoncteur. De ce fait, l'ouverture 22 de l'élément 20b de la fourchette d'entraînement 20 se situe dans une position telle que ce maneton puisse s'y engager librement.In the case of FIG. 2A, the handle 15 is on the mark O, which corresponds to the open position of the device. The crank pin 30 of the circuit breaker is also in the position corresponding to the open state of this circuit breaker. Therefore, the opening 22 of the element 20b of the drive fork 20 is in a position such that this crankpin can engage there freely.

Dans le cas de la figure 2B, la poignée 15 est sur le repère F, qui correspond à la position fermée du dispositif. Le maneton 30 se trouve dans la même position que précédemment, qui correspond à l'état ouvert du disjoncteur. L'ouverture 22 est décalée par rapport à celle occupée précédemment. En conséquence, le maneton 30 ne peut pas être engagé dans cette ouverture. Il existe une zone d'interférence 31 entre l'élément 20b et le maneton 30, empêchant la mise en place du dispositif de commande rotative lorsqu'il y a discordance d'états entre le disjoncteur et sa commande rotative se traduisant par une discordance de position entre le maneton et la poignée. Cette zone d'interférence 31 est constituée par une plaque de détrompage 31'intégrante de l'élément 20b et bordant un côté de l'ouverture 22.In the case of FIG. 2B, the handle 15 is on the mark F, which corresponds to the closed position of the device. The crankpin 30 is in the same position as before, which corresponds to the open state of the circuit breaker. The opening 22 is offset from that previously occupied. Consequently, the crank pin 30 cannot be engaged in this opening. There is an interference zone 31 between the element 20b and the crank pin 30, preventing the installation of the rotary control device when there is a mismatch of states between the circuit breaker and its rotary control resulting in a mismatch of position between the crank pin and the handle. This interference zone 31 is constituted by a keying plate 31 ′ which is integral with the element 20b and which borders one side of the opening 22.

Dans le cas de la figure 2C, la poignée est sur le repère F, qui correspond à la position fermée du dispositif. Le maneton 30 est également dans la position correspondant à l'état fermé du disjoncteur. De ce fait, l'ouverture 22 de l'élément 20b de la fourchette d'entraînement 20 se situe dans une position susceptible d'accueillir ce maneton. Il y a concordance de position en raison de la concordance des états.In the case of FIG. 2C, the handle is on the mark F, which corresponds to the closed position of the device. The crankpin 30 is also in the position corresponding to the closed state of the circuit breaker. Therefore, the opening 22 of the element 20b of the drive fork 20 is in a position capable of accommodating this crankpin. There is a concordance of position due to the concordance of the states.

Dans le cas de la figure 2D, la poignée 15 est sur le repère O, qui correspond à la position ouverte du dispositif. Le maneton 30 est dans la position correspondant à l'état fermé du disjoncteur. De ce fait, l'ouverture 22 se situe dans une position décalée par rapport à celle qui permettrait l'introduction du maneton. Il existe une zone d'interférence 32 entre le maneton et une barrette 33, représentée par la figure 2, de forme coudée pivotant autour d'un axe 34 et couplée par un téton 35 engagé dans une ouverture oblongue 36 de l'élément 20b, à ladite fourchette d'entraînement, cette barrette empêchant la mise en place du dispositif de commande rotative. Là encore, cette mise en place est interdite lorsqu'il y a discordance d'états.In the case of FIG. 2D, the handle 15 is on the mark O, which corresponds to the open position of the device. The crankpin 30 is in the position corresponding to the closed state of the circuit breaker. Therefore, the opening 22 is located in a position offset from that which would allow the introduction of the pin. There is an interference zone 32 between the crankpin and a bar 33, represented by FIG. 2, of bent shape pivoting about an axis 34 and coupled by a stud 35 engaged in an oblong opening 36 of the element 20b, to said drive fork, this bar preventing the installation of the rotary control device. Again, this implementation is prohibited when there is a discrepancy between states.

Cet ensemble de composants qui coopèrent pour autoriser la mise en place du dispositif de commande rotative lorsqu'il y a concordance d'états et pour interdire cette mise en place lorsqu'il y a discordance, constitue un système de détrompage.This set of components which cooperate to authorize the setting up of the rotary control device when there is a concordance of states and to prohibit this setting up when there is a mismatch, constitutes a keying system.

Le dispositif de commande rotative est par ailleurs équipé de moyens de verrouillage de porte agencés pour permettre, le cas échéant, de verrouiller une porte d'un coffret à l'intérieur duquel est monté un disjoncteur. Ces moyens sont illustrés par les figures 3A, 3B, 3C, 3D et 3E. Ils comportent un verrou 40 pivotant autour d'un axe fixe 41 et muni à une de ses extrémités d'un bec 42 agencé pour coopérer avec une butée 43 solidaire de la noix d'entraînement 17 solidaire de la poignée de commande rotative. L'autre extrémité du verrou 40 comporte une butée 44 agencée pour coopérer avec un crochet 45 solidaire de ladite porte du coffret contenant le disjoncteur.The rotary control device is also equipped with door locking means arranged to allow, if necessary, to lock a door of a cabinet inside which a circuit breaker is mounted. These means are illustrated by FIGS. 3A, 3B, 3C, 3D and 3E. They comprise a lock 40 pivoting about a fixed axis 41 and provided at one of its ends with a spout 42 arranged to cooperate with a stop 43 secured to the drive nut 17 secured to the rotary control handle. The other end of the latch 40 has a stop 44 arranged to cooperate with a hook 45 secured to said door of the box containing the circuit breaker.

Le verrou 40 est sollicité en permanence par un ressort de compression 46 qui tend à le faire basculer dans le sens de la flèche A, vers une position représentée par la figure 3D.The lock 40 is permanently biased by a compression spring 46 which tends to tilt it in the direction of the arrow A, towards a position represented by FIG. 3D.

Le verrouillage de porte est une fonction facultative qui peut être mise en service ou non par l'utilisateur final. A cet effet, le verrou 40 peut être équipé de deux vis 47 et 48 agencées pour coopérer, le cas échéant, avec deux butées fixes 49 et 50 solidaires du boîtier 14 du dispositif de commande rotative.The door lock is an optional function which can be activated or not by the end user. To this end, the latch 40 can be equipped with two screws 47 and 48 arranged to cooperate, if necessary, with two fixed stops 49 and 50 secured to the housing 14 of the rotary control device.

Dans l'exemple illustré par la figure 3A, la vis 48 est en appui contre la butée 50 et empêche le basculement du verrou 40 dans le sens de la flèche A. La butée 44 reste à l'intérieur du boîtier 14 et le bec 42 n'interfère pas avec la trajectoire circulaire de la butée 43 lorsque la poignée est tournée. Il n'y a donc ni verrouillage de porte ni verrouillage de la poignée.In the example illustrated in FIG. 3A, the screw 48 bears against the stop 50 and prevents the latch 40 from tilting in the direction of arrow A. The stop 44 remains inside the housing 14 and the spout 42 does not interfere with the circular path of the stop 43 when the handle is turned. There is therefore neither door lock nor handle lock.

Dans l'exemple illustré par la figure 3B, la vis 48 a été retirée, mais la vis 47 est maintenue. Sous l'effet du ressort de compression 46, le verrou 40 a basculé de telle manière que la vis 47 soit en appui contre la butée 49. La butée 44 est engagée dans une ouverture 51 du boîtier 14 et coopère avec le crochet 45 pour verrouiller la porte du coffret du disjoncteur. En revanche, la vis 47 et la butée 49 empêchent un basculement complet du verrou 40 et, de ce fait, préservent un jeu entre le bec 42 et la butée 43. Dans ce cas, la fonction de verrouillage de porte est assurée, mais pas la fonction de verrouillage de la poignée.In the example illustrated in FIG. 3B, the screw 48 has been removed, but the screw 47 is maintained. Under the effect of the compression spring 46, the latch 40 has tilted so that the screw 47 bears against the stop 49. The stop 44 is engaged in an opening 51 of the housing 14 and cooperates with the hook 45 to lock the circuit breaker cabinet door. On the other hand, the screw 47 and the stop 49 prevent complete tilting of the latch 40 and, therefore, preserve a clearance between the spout 42 and the stop 43. In this case, the door locking function is ensured, but not the handle lock function.

Lorsque les deux vis 47 et 48 sont retirées, le pivotement complet du verrou 40 est théoriquement possible. Dans la pratique, on distingue cependant trois cas distincts illustrés respectivement par les figures 3C, 3D et 3E.When the two screws 47 and 48 are removed, complete pivoting of the lock 40 is theoretically possible. In practice, however, there are three distinct cases illustrated respectively by FIGS. 3C, 3D and 3E.

Dans le cas de la figure 3C, le crochet 45 de la porte du coffret a la même fonction que la vis 47 associée à la butée 49, puisqu'elle empêche le basculement complet du verrou 40. En fait, ce crochet 45 est dans la position représentée lorsque la porte du coffret est fermée. Il sert de butée d'arrêt empêchant le pivotement complet du verrou 40 et à préserver un jeu entre le bec 42 et la butée 43 pour autoriser la rotation libre de la poignée couplée à la noix d'entraînement 17. En d'autres termes, lorsque la porte du coffret est fermée, il est possible d'actionner librement la poignée de commande rotative.In the case of FIG. 3C, the hook 45 of the cabinet door has the same function as the screw 47 associated with the stop 49, since it prevents the complete tilting of the lock 40. In fact, this hook 45 is in the position shown when the cabinet door is closed. It serves as a stop stop preventing the complete pivoting of the lock 40 and to preserve a clearance between the spout 42 and the stop 43 to allow the free rotation of the handle coupled to the drive nut 17. In other words, when the cabinet door is closed, the rotary control handle can be freely operated.

Dans le cas de la figure 3D. la porte du coffret est ouverte et le crochet 45 ne s'oppose pas au pivotement complet du verrou 40. Le bec 42 se positionne en appui contre la butée 43 et empêche la rotation de la noix d'entraînement 17 dans le sens de la flèche B. En conséquence, lorsque la porte du coffret est ouverte, la manoeuvre de la poignée du dispositif de commande rotative est interdite.In the case of Figure 3D. the cabinet door is open and the hook 45 does not oppose the complete pivoting of the lock 40. The spout 42 is positioned in abutment against the stop 43 and prevents the rotation of the drive nut 17 in the direction of the arrow B. Consequently, when the cabinet door is open, the operation of the handle of the rotary control device is prohibited.

La figure 3E montre que la porte du coffret ne peut être ouverte que si le disjoncteur est en position ouverte, lorsque les deux vis 47 et 48 sont retirées. Initialement, les éléments mobiles sont dans la position représentée par la figure 3D. Lorsque l'opérateur tourne la poignée dans le sens de la flèche C, la butée 43 de la noix d'entraînement 17, qui comporte un bord arrondi 43a, coopère avec une rampe 52 ménagée sur le flan du verrou 40, à l'arrière du bec 42 pour faire basculer ce verrou et libérer le crochet 45 de la porte. La rotation de la poignée dans le sens de la flèche C correspond à une manoeuvre tendant à emmener cette poignée dans la position d'ouverture du disjoncteur.Figure 3E shows that the cabinet door can only be opened if the circuit breaker is in the open position, when the two screws 47 and 48 are removed. Initially, the movable elements are in the position shown in Figure 3D. When the operator turns the handle in the direction of arrow C, the stop 43 of the drive nut 17, which has a rounded edge 43a, cooperates with a ramp 52 formed on the blank of the lock 40, at the rear of the spout 42 to tilt this lock and release the hook 45 from the door. The rotation of the handle in the direction of arrow C corresponds to an operation tending to bring this handle into the open position of the circuit breaker.

Outre le détrompage et le verrouillage de porte, le dispositif peut être pourvu de moyens de verrouillage par une serrure. Le mode de mise en oeuvre de cette fonction complémentaire est décrit en référence aux figures 4A, 4B, 4C et 4D. Une serrure 60 du type à barillet est montée à l'intérieur du coffret 14. Cette serrure comporte un pêne 61 rotatif qui est agencé pour coopérer avec l'élément 20b de la fourche d'entraînement.In addition to the keying and locking of the door, the device can be provided with locking means by a lock. The mode of implementation of this additional function is described with reference to FIGS. 4A, 4B, 4C and 4D. A lock 60 of the barrel type is mounted inside the box 14. This lock comprises a rotary bolt 61 which is arranged to cooperate with the element 20b of the drive fork.

La figure 4A représente la serrure 60 en position déverrouillée, le dispositif de commande rotative étant en position fermée qui correspond à l'état fermé du disjoncteur.FIG. 4A represents the lock 60 in the unlocked position, the rotary control device being in the closed position which corresponds to the closed state of the circuit breaker.

La figure 4B représente la serrure 60 en position verrouillée, le dispositif de commande rotative étant toujours en position fermée. Le pêne 61 est engagé dans une encoche 62 ménagée dans la fourchette d'entraînement, et plus exactement dans une pièce 20C reliant les deux éléments 20a et 20b, et perpendiculairement à ces derniers. Il empêche la rotation de la noix d'entraînement 17 puisque l'élément 20a est bloqué et bloque la goupille excentrique 18.FIG. 4B shows the lock 60 in the locked position, the rotary control device always being in the closed position. The bolt 61 is engaged in a notch 62 formed in the drive fork, and more exactly in a part 20C connecting the two elements 20a and 20b, and perpendicularly to the latter. It prevents rotation of the drive nut 17 since the element 20a is blocked and blocks the eccentric pin 18.

Les figures 4C et 4D illustrent le fonctionnement de la serrure lorsque le dispositif de commande rotative est en position ouverte. Une serrure 60' du type à barillet, qui pourrait être identique à la serrure 60 représentée par les figures 3A et 3B, comporte un pêne 61'. Dans les deux cas, le dispositif de commande rotative est en position ouverte. Dans l'exemple de la figure 4C, la serrure 60' est ouverte et le pêne 61' n'interfère pas avec la trajectoire décrite par la pièce 20C de la fourchette d'entraînement 20 lorsque la noix d'entraînement 17 est manoeuvrée.Figures 4C and 4D illustrate the operation of the lock when the rotary control device is in the open position. A lock 60 'of the barrel type, which could be identical to the lock 60 shown in Figures 3A and 3B, comprises a bolt 61'. In both cases, the rotary control device is in the open position. In the example of FIG. 4C, the lock 60 'is open and the bolt 61' does not interfere with the path described by the part 20C of the drive fork 20 when the drive nut 17 is operated.

Dans l'exemple de la figure 4D, la serrure 60' est fermée et le pêne 61' bloque la pièce 20C et empêche la rotation de la noix d'entraînement 17.In the example of FIG. 4D, the lock 60 'is closed and the bolt 61' blocks the part 20C and prevents the rotation of the drive nut 17.

Il est bien entendu que le blocage de la noix d'entraînement par le pêne pourrait s'obtenir par des moyens différents de l'appui de ce pêne contre la pièce 20C. Le pêne pourrait, par exemple, coopérer avec l'une ou l'autre des pièces 20a ou 20b.It is understood that the locking of the drive nut by the bolt could be obtained by means different from the support of this bolt against the part 20C. The bolt could, for example, cooperate with one or other of the parts 20a or 20b.

En référence à la figure 5, la commande rotative prolongée 110 comporte un axe de manoeuvre 111, une poignée rotative 112 montée à l'extrémité libre de cet axe, un boîtier 113 auquel est couplé l'axe de manoeuvre 111, à son autre extrémité, par l'intermédiaire d'un dispositif élastique de centrage 114.With reference to FIG. 5, the extended rotary control 110 comprises an operating axis 111, a rotary handle 112 mounted at the free end of this axis, a housing 113 to which the operating axis 111 is coupled, at its other end , by means of an elastic centering device 114.

Comme le montrent les figures 6A et 6B, la poignée 112 est associée à une bague de centrage 115 qui comporte une surface intérieure conique 116 définissant une rampe circulaire sur laquelle prend appui l'extrémité arrondie 117 de l'axe de manoeuvre 111, au début de la phase de fermeture (voir la figure 6A) d'une porte 118 sur laquelle est montée ladite poignée 112.As shown in FIGS. 6A and 6B, the handle 112 is associated with a centering ring 115 which has a conical inner surface 116 defining a circular ramp on which the rounded end 117 of the operating axis 111 is supported, at the start of the closing phase (see FIG. 6A) of a door 118 on which said handle 112 is mounted.

Au cours de la fermeture de cette porte, l'extrémité 117 glisse sur la surface intérieure conique 116 de la bague de centrage 115 pour se positionner de façon approximativement centrée comme le montre la figure 6B. Ce déplacement angulaire de l'axe de manoeuvre est rendu possible grâce à l'élasticité du dispositif élastique de recentrage 114 dont la construction sera décrite en détail en référence aux figures suivantes.During the closing of this door, the end 117 slides on the conical inner surface 116 of the centering ring 115 to be positioned approximately centered as shown in FIG. 6B. This angular displacement of the operating axis is made possible by the elasticity of the elastic recentering device 114, the construction of which will be described in detail with reference to the following figures.

Le dispositif élastique de recentrage 114 est couplé à une noix d'entraînement 119 du boîtier 113, qui est pourvue d'un évidement central tronconique 120. Ce dispositif comporte en outre une douille 121 comprenant un premier tronçon 122 sensiblement cylindrique, de section réduite, et un second tronçon 123 sensiblement cylindrique, de section large. Le premier tronçon 122 est engagé dans l'évidement central tronconique 120 de la noix d'entraînement 119 à laquelle il est fixé par une vis 124 vissée dans un alésage fileté 125 disposé axialement et ménagé dans ledit premier tronçon 122 et ayant une tête élargie 126 qui prend appui sur les bords 127 d'un dégagement circulaire 128 réalisé dans la noix d'entraînement, du côté opposé à l'évidement tronconique 120.The elastic recentering device 114 is coupled to a drive nut 119 of the housing 113, which is provided with a frustoconical central recess 120. This device also comprises a socket 121 comprising a first substantially cylindrical section 122, of reduced section, and a second substantially cylindrical section 123, of wide section. The first section 122 is engaged in the frustoconical central recess 120 of the drive nut 119 to which it is fixed by a screw 124 screwed in a threaded bore 125 arranged axially and formed in said first section 122 and having an enlarged head 126 which bears on the edges 127 of a circular clearance 128 produced in the drive nut, on the side opposite to the frustoconical recess 120.

Le second tronçon 123 comporte un évidement de section polygonale, par exemple carrée, agencé pour recevoir une extrémité de l'axe de manoeuvre 111.The second section 123 comprises a recess of polygonal section, for example square, arranged to receive one end of the operating axis 111.

En raison du jeu prévu entre la paroi extérieure dudit premier tronçon 122 de la douille 121 et la paroi intérieure de l'évidement central tronconique 120 de la noix d'entraînement 119, l'axe de manoeuvre 111 peut se débattre angulairement comme le montre la figure 6B.Due to the clearance provided between the outer wall of said first section 122 of the sleeve 121 and the inner wall of the frustoconical central recess 120 of the drive nut 119, the operating axis 111 can be angularly struggled as shown in the Figure 6B.

Pour ramener automatiquement l'axe de manoeuvre 111 dans une position centrée, un ressort de compression 129 est monté entre un rebord 130 de la douille 121 et une bague d'appui 131 montée coaxialement sur la noix d'entraînement. Une coquille de protection 132 recouvre cet ensemble. Le ressort a pour effet de générer une poussée tendant à éloigner la douille 121 de la noix d'entraînement. Comme ces deux éléments sont liés par la vis 124, cet éloignement est contrarié et l'effet obtenu est un recentrage de la douille par rapport à la noix d'entraînement, lorsque l'axe de manoeuvre est libéré après avoir subi un déplacement angulaire.To automatically return the operating shaft 111 to a centered position, a compression spring 129 is mounted between a flange 130 of the sleeve 121 and a support ring 131 mounted coaxially on the drive nut. A protective shell 132 covers this assembly. The spring has the effect of generating a thrust tending to move the sleeve 121 away from the drive nut. As these two elements are linked by the screw 124, this distance is counteracted and the effect obtained is a refocusing of the sleeve relative to the drive nut, when the operating axis is released after having undergone an angular displacement.

La rotation de la noix d'entraînement est obtenue grâce à une première denture 133 ménagée à la périphérie de la zone d'extrémité du premier tronçon 122 de la douille 121, qui coopère avec une seconde denture 134, ménagée au fond de l'évidement central tronconique 120 (figure 7A et 7B).The rotation of the drive nut is obtained by means of a first toothing 133 formed at the periphery of the end zone of the first section 122 of the sleeve 121, which cooperates with a second toothing 134, formed at the bottom of the recess frustoconical central 120 (FIGS. 7A and 7B).

Un jeu relativement grand est prévu entre les deux dentures de telle façon qu'elles restent en prise même lorsque l'axe de manoeuvre est angulairement décalé.A relatively large clearance is provided between the two teeth so that they remain engaged even when the operating axis is angularly offset.

En conséquence, en raison des différents jeux, l'axe de manoeuvre peut être angulairement décalé, tout en restant couplé à la noix d'entraînement. Grâce au ressort de compression, l'axe de manoeuvre tend à se positionner selon une direction axiale dès qu'il est libéré par ouverture de la porte du tableau, après avoir subi un décalage angulaire et peut reprendre sa position décalée au moment de la fermeture de cette porte.Consequently, due to the different clearances, the operating axis can be angularly offset, while remaining coupled to the drive nut. Thanks to the compression spring, the operating axis tends to be positioned in an axial direction as soon as it is released by opening the door of the switchboard, after having undergone an angular offset and can return to its offset position at the time of closing. from this door.

Claims (10)

Dispositif de commande rotative pour un disjoncteur, notamment un disjoncteur triphasé du type industriel, lequel comporte un plastron de fermeture frontale pourvu d'une ouverture traversée par un maneton pivotant pouvant occuper au moins deux positions extrêmes stables, ledit dispositif comprenant un boîtier monté sur ledit plastron, une poignée rotative solidaire de ce boîtier et un mécanisme pour coupler ladite poignée et ledit maneton, caractérisé en ce que ledit mécanisme de couplage comporte des moyens de détrompage agencés pour empêcher un montage dudit dispositif en discordance d'état avec le disjoncteur.Rotary control device for a circuit breaker, in particular a three-phase circuit breaker of the industrial type, which comprises a front closing faceplate provided with an opening traversed by a pivoting crank pin which can occupy at least two extreme stable positions, said device comprising a housing mounted on said plastron, a rotary handle integral with this housing and a mechanism for coupling said handle and said crank pin, characterized in that said coupling mechanism includes polarizing means arranged to prevent mounting of said device in discordant state with the circuit breaker. Dispositif selon la revendication 1, caractérisé en ce que ledit mécanisme de couplage comporte une noix d'entraînement (17) mobile en rotation avec ladite poignée rotative (15) et une fourchette d'entraînement (20) pivotant autour d'un axe fixe (21) et couplée mécaniquement à ladite noix d'entraînement par une goupille excentrique (18) portée par cette dernière et engagée dans un logement oblong (19) ménagé dans ladite fourchette d'entraînement, et en ce que lesdits moyens de détrompage comportent une ouverture (22) ménagée dans ladite fourchette d'entraînement dans laquelle est engagé ledit maneton du disjoncteur lorsque le disjoncteur et le dispositif de commande rotative sont en concordance d'état, ainsi qu'une plaque solidaire de ladite fourchette et bordant au moins partiellement ladite ouverture.Device according to claim 1, characterized in that said coupling mechanism comprises a drive nut (17) movable in rotation with said rotary handle (15) and a drive fork (20) pivoting about a fixed axis ( 21) and mechanically coupled to said drive nut by an eccentric pin (18) carried by the latter and engaged in an oblong housing (19) formed in said drive fork, and in that said polarizing means comprise an opening (22) formed in said drive fork in which is engaged said pin of the circuit breaker when the circuit breaker and the rotary control device are in state agreement, as well as a plate integral with said fork and at least partially bordering said opening . Dispositif selon la revendication 2, caractérisé en ce que ladite fourchette d'entraînement (20) comporte un premier élément (20a) et un second élément (20b) disposés parallèlement et solidaires l'un de l'autre, que ledit logement oblong (19) est ménagé dans ledit premier élément (20a) et que ladite ouverture (22) est ménagée dans ledit second élément (20b).Device according to claim 2, characterized in that said drive fork (20) comprises a first element (20a) and a second element (20b) arranged parallel and integral with one another, than said oblong housing (19 ) is formed in said first element (20a) and that said opening (22) is formed in said second element (20b). Dispositif selon la revendication 2, caractérisé en ce que lesdits moyens de détrompage comportent en outre une barrette (33) pivotant entre un axe (34) et liée par une de ses extrémités à ladite fourchette d'entraînement (20).Device according to claim 2, characterized in that said polarizing means further comprise a bar (33) pivoting between an axis (34) and linked by one of its ends to said drive fork (20). Dispositif selon la revendication 4, caractérisé en ce que ladite plaque est disposée d'un côté de l'ouverture (22) et en ce que ladite barrette (33), disposée de l'autre côté de l'ouverture (22), comporte à une de ses extrémités un téton (35) engagé dans une ouverture oblongue (36) dudit second élément (20b) de la fourchette d'entraînement (20).Device according to claim 4, characterized in that said plate is disposed on one side of the opening (22) and in that said strip (33), disposed on the other side of the opening (22), comprises at one of its ends a stud (35) engaged in an oblong opening (36) of said second element (20b) of the drive fork (20). Dispositif selon la revendication 1, caractérisé en ce qu'il comporte des moyens de verrouillage de porte associés audit mécanisme de couplage, lesdits moyens de verrouillage comportant un verrou (40) pivotant sollicité par un ressort (46) et pourvu d'une butée (44) agencée pour coopérer avec un crochet (45) solidaire d'un coffret contenant le disjoncteur et d'un bec (42) agencé pour coopérer avec une butée (43) solidaire de la noix d'entraînement (17).Device according to claim 1, characterized in that it comprises means for door locking associated with said coupling mechanism, said locking means comprising a pivoting lock (40) biased by a spring (46) and provided with a stop (44) arranged to cooperate with a hook (45) integral with a box containing the circuit breaker and a spout (42) arranged to cooperate with a stop (43) integral with the drive nut (17). Dispositif selon la revendication 6, caractérisé en ce que ledit verrou (40) est pourvu d'au moins une première vis amovible (47) agencée pour coopérer avec une première butée fixe (49) solidaire du boîtier (14) pour empêcher la coopération du bec (42) et de la butée (43) solidaire de la noix d'entraînement, et d'au moins une seconde vis amovible (48) agencée pour coopérer avec une seconde butée fixe (50) solidaire du boîtier (14) pour empêcher la coopération de la butée (44) avec le crochet (45) solidaire du coffret contenant le disjoncteur.Device according to claim 6, characterized in that said lock (40) is provided with at least a first removable screw (47) arranged to cooperate with a first fixed stop (49) integral with the housing (14) to prevent the cooperation of the spout (42) and the stop (43) integral with the drive nut, and at least one second removable screw (48) arranged to cooperate with a second fixed stop (50) integral with the housing (14) to prevent the cooperation of the stop (44) with the hook (45) integral with the box containing the circuit breaker. Dispositif selon la revendication 1 caractérisé en ce qu'il comporte une serrure (60, 60') à barillet de verrouillage de la fourchette d'entraînement (20).Device according to claim 1 characterized in that it comprises a lock (60, 60 ') with a barrel for locking the drive fork (20). Dispositif de commande rotative pour un disjoncteur, notamment un disjoncteur triphasé de type industriel, logé dans un boîtier (113) isolant et comportant une poignée (112) rotative, caractérisée en ce que: - un axe de manoeuvre (111) est monté entre la poignée (112) et le boîtier (113), - un dispositif élastique (114) de recentrage de l'axe de manoeuvre (111) comporte une douille (121) assurant un couplage mécanique entre l'axe de manoeuvre (111) et une noix d'entraînement (119) du boîtier (113), ladite douille (121) comportant un premier tronçon (122) sensiblement cylindrique, logé avec du jeu dans un évidement central tronconique (120) de la noix d'entraînement (119), - une première denture (133) du premier tronçon (122) est agencée pour coopérer avec une deuxième denture conjuguée de ladite noix d'entraînement. Rotary control device for a circuit breaker, in particular a three-phase industrial type circuit breaker, housed in an insulating housing (113) and comprising a rotary handle (112), characterized in that: - an operating shaft (111) is mounted between the handle (112) and the housing (113), - an elastic device (114) for refocusing the operating axis (111) comprises a sleeve (121) ensuring a mechanical coupling between the operating axis (111) and a drive nut (119) of the housing (113 ), said sleeve (121) comprising a first substantially cylindrical section (122), housed with clearance in a frustoconical central recess (120) of the drive nut (119), - A first toothing (133) of the first section (122) is arranged to cooperate with a second conjugate toothing of said drive nut. Dispositif de commande selon la revendication 9, caractérisé en ce que ladite douille (121) comporte un second tronçon (123), sensiblement cylindrique, comportant un évidement de section polygonale, agencé pour recevoir une extrémité de l'axe de manoeuvre (111), ladite douille (121) et la noix d'entraînement (119) étant maintenues dans leurs positions axiales relatives par une vis (124), qu'un ressort de compression (129) est monté entre un rebord (130) de la douille (121) et une bague d'appui (131) coaxiale à la noix d'entraînement (119) et en appui contre cette dernière, et qu'une coquille de protection (132) masque ledit ressort de compression (129).Control device according to claim 9, characterized in that said bush (121) comprises a second section (123), substantially cylindrical, comprising a recess of polygonal section, arranged to receive one end of the operating axis (111), said bush (121) and the drive nut (119) being held in their relative axial positions by a screw (124), that a compression spring (129) is mounted between a flange (130) of the bush (121 ) and a support ring (131) coaxial with the drive nut (119) and in abutment against the latter, and that a protective shell (132) masks said compression spring (129).
EP94420036A 1993-02-16 1994-02-02 Rotation operating device for a circuit breaker Expired - Lifetime EP0612090B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
FR9301825 1993-02-16
FR9301824 1993-02-16
FR9301825A FR2701593B1 (en) 1993-02-16 1993-02-16 Extended rotary control for a circuit breaker.
FR9301824A FR2701592B1 (en) 1993-02-16 1993-02-16 Device for rotary control of a circuit breaker.

Publications (3)

Publication Number Publication Date
EP0612090A2 true EP0612090A2 (en) 1994-08-24
EP0612090A3 EP0612090A3 (en) 1994-12-07
EP0612090B1 EP0612090B1 (en) 1998-09-02

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EP94420036A Expired - Lifetime EP0612090B1 (en) 1993-02-16 1994-02-02 Rotation operating device for a circuit breaker

Country Status (4)

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US (1) US5493083A (en)
EP (1) EP0612090B1 (en)
DE (1) DE69412880T2 (en)
ES (1) ES2122201T3 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998001882A1 (en) * 1996-07-10 1998-01-15 Siemens Energy & Automation, Inc. Circuit breaker handle operator apparatus and system
EP2638552A4 (en) * 2010-11-12 2016-11-02 Carling Technologies Inc Switch with pivoting actuator

Also Published As

Publication number Publication date
ES2122201T3 (en) 1998-12-16
US5493083A (en) 1996-02-20
DE69412880D1 (en) 1998-10-08
EP0612090A3 (en) 1994-12-07
DE69412880T2 (en) 1999-03-11
EP0612090B1 (en) 1998-09-02

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