EP0008990A1 - Low voltage multi-pole circuit breaker provided with a device for setting the bar - Google Patents

Low voltage multi-pole circuit breaker provided with a device for setting the bar Download PDF

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Publication number
EP0008990A1
EP0008990A1 EP79400626A EP79400626A EP0008990A1 EP 0008990 A1 EP0008990 A1 EP 0008990A1 EP 79400626 A EP79400626 A EP 79400626A EP 79400626 A EP79400626 A EP 79400626A EP 0008990 A1 EP0008990 A1 EP 0008990A1
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EP
European Patent Office
Prior art keywords
bar
circuit breaker
adjustment
axis
breaker according
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
EP79400626A
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German (de)
French (fr)
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EP0008990B1 (en
Inventor
Lucien Vernier
Denis Vial
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.)
Merlin Gerin SA
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Merlin Gerin SA
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Filing date
Publication date
Application filed by Merlin Gerin SA filed Critical Merlin Gerin SA
Publication of EP0008990A1 publication Critical patent/EP0008990A1/en
Application granted granted Critical
Publication of EP0008990B1 publication Critical patent/EP0008990B1/en
Expired legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
    • H01H1/34—Contacts characterised by the manner in which co-operating contacts engage by abutting with provision for adjusting position of contact relative to its co-operating contact
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H69/00—Apparatus or processes for the manufacture of emergency protective devices

Definitions

  • the adjustment device is constituted by an adjustable connection with an eccentric cam formed between the lower link of the toggle joint and a drive arm.
  • the adjustment of the cam is achieved by the appropriate positioning of a hexagonal head of a spindle to best compensate for manufacturing tolerances.
  • This device is nevertheless complicated and expensive.
  • the object of the invention is to remedy this drawback and to allow the production of a circuit breaker provided with a simple, precise and economical adjustment device.
  • the circuit breaker according to the invention is characterized in that said adjustment device comprises a bar support member and at least one screw for assembling said member to a fixed part of the circuit breaker such that the screwing or unscrewing of the screw causes the approximation or distance of said body relative to the fixed part causing the bidirectional limited displacement of the bar to an optimum adjustment position.
  • a locking means cooperates with said adjustment device to immobilize said assembly screw in the optimum adjustment position suitable for the best compensation for manufacturing tolerances.
  • said support member of the bar comprises two independent positioning bearings each cooperating with a connecting screw to ensure said optimum adjustment, and that an interval separates said bearings in the transverse direction of the bar perpendicular to the contact arms.
  • an actuating mechanism 10 of a low-voltage four-pole circuit breaker with molded housing cooperates with one of the intermediate poles, the movement being transmitted to the adjacent poles by a transverse bar 12, made of insulating material.
  • a manual control lever 14 is associated with the mechanism 10 and is capable of occupying three stable positions F for closing, D for tripping on a fault, and 0 for manual opening of the circuit breaker.
  • the mechanism 10 is mounted between two parallel fixed support plates 16, and comprises a toggle link 18 with an axis 20 on which two links 22, 24 are articulated.
  • the link 22 is coupled to the bar 12 by a connecting pin 26, and the link 24 is articulated on a trigger hook 28 at a point 30.
  • a tension spring 32 is anchored to the axis 20 of the toggle joint 16, and by its end opposite to a cradle 34 secured to the lever 14.
  • the lever assembly 14, cradle 34 is articulated on a fixed pivot 36 carried by the plates 16.
  • the U-shaped trigger hook 28 is pivotally mounted on a fixed axis 38 and cooperates with the thermal and electromagnetic detectors of the trigger block (not shown) of the circuit breaker.
  • the hook 28 comprises a hooking spout 40 coming into engagement in the armed position with a latch 42 rotatably mounted on an axis 44 between locked and unlocked positions.
  • the pivoting of the trigger bar (not shown) of the trigger causes the locking member 46 to tilt in the direction of arrow f l to unlock the lock 42 and release the hooking bee 40 from the trigger hook 28.
  • the latter pivots about the axis 38 under the action of the spring 32 by moving the articulation point 30 of the rod 24 to the right in FIG.
  • the bar 12 is rotatably mounted on an axis 52 and carries four contact arms 54 corresponding to the different poles.
  • Each contact arm 54 is articulated on an axis 55 and carries a movable contact 56 cooperating with a fixed contact 58.
  • Each arm 54 is electrically connected to a corresponding pad 60 by a braid 62, and a compression spring 64 interposed between the arm 54 and the bar 12 ensures the appropriate contact pressure in the closed position of the circuit breaker.
  • the actuation mechanism 10 is equipped with a device 66 for positioning the bar 12, the adjustment of which ensures compensation for the manufacturing tolerances of the members of the movable member of the mechanism.
  • the axis 52 of the bar 12 is supported on two spaced bearings 68, 70, provided with fixing lugs 72, 74 facing the edges of the two fixed plates 16 of the mechanism 10.
  • Each fixing lug 72, 74 is pierced with a orifice for the passage of an adjustment screw 76 of the Tarsid type screwed into a housing 78 of the plate 16 corrcs- laying.
  • Each bearing 68, 70 is pivotally mounted on an axis 73 integral with the associated plate 16, and the screwing or unscrewing of the screws 76 causes the bearings 68, 70 to pivot in planes parallel to the plane of movement of the contact arms 54 and the relative movement of the axis of rotation 52 with respect to the plates 16.
  • This adjustment is carried out in the factory, after the assembly of the circuit breaker members and a locking nut 80 is then tightened on each fixing lug 72, 74 of the bearings 68, 70 for immobilizing the screws 76 of the positioning device 66 in the optimum adjustment position.
  • the movement of the axis of rotation 52 of the bar 12 during this adjustment ensures the correct positioning of the contact arms 54 relative to the fixed contacts 58 corresponding so as to obtain a good contact pressure in the closed position of the circuit breaker.
  • Figure 4 shows an alternative embodiment of a multipole circuit breaker in which the same references will be used to designate similar or identical parts.
  • the bar 12 for supporting the contact arms 54 is positioned in the lower compartment 82 of the case 84 of the circuit breaker, separated from the upper compartment 86 for housing the actuating mechanism (not shown) by a partition 88 intermediate in insulating material.
  • a link 90 of the mechanism is coupled to the bar 12 by the connecting axis 26.
  • the breaking chamber 92 of each pole of the lower compartment 82 is provided with a window 94 for passage of the corresponding contact arm 54 whose axis of rotation 55 is integral with the bar 12.
  • the opening of the contacts 56, 58 of the different poles is effected by a pivoting of the bar 12 in the counterclockwise direction causing the tilting of the contact arms downward (indicated by the arrow f 2 ) 54 in the direction of the base plate 96 of the housing 84.
  • the positioning device 66 of the bar 12 comprises two bearings 68, 70 secured to the intermediate partition 88 parallel to the base plate 96 by assembly screws with hexagonal heads 98 accessible in the upper compartment 86 in the disassembled position of the cover 100.
  • the screwing or unscrewing of the screws 76 causes a vertical translation in the direction of bringing the bearings 68, 70 and the bar 12 closer or further away from the intermediate partition 88, and thus allows optimum adjustment of the depression of the contact arms 54 to best compensate for manufacturing tolerances.
  • a brake pad 102 interposed between the head 98 of the screws 76 and the intermediate partition 88, blocks the adjustable positioning device 66 in this position after factory setting.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Breakers (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)

Abstract

1. Low voltage multipole circuits breaker with a molded case and an operating toggle mechanism (10) comprising : - an operating handle (14) manually movable between closed F and open O positions, - a trip cradle (28) cooperating with the trip unit for automatically opening the contacts (56, 58) when a fault current appears, - a common support bar (12) of the movable contact arms (54) of all poles, rotatably mounted on an axis (52) during a predetermined angular course corresponding to the movement of handle (14), - and a setting device (66) for compensating manufacturing tolerances of mechanism elements, characterized by the fact that said setting device (66) comprises a bar (12) support member (68, 70) and at least an assembling screw (76) of said member to a fixed part (16, 88) of the circuit breaker so that screwing or unscrewing of screw (76) provokes bringing nearer or away of said member (68, 70) with respect to said fixed part (16, 88) and a limited bidirectionnel movement of the bar (12) to an optimum set position.

Description

L'invention est relative à un disjoncteur multipolaire basse tension à boîtier moulé et à mécanisme d'actionnement à genouillère comprenant :

  • - une manette de commande déplaçable manuellement entre des positions F de fermeture et 0 d'ouverture,
  • - un crochet de déclenchement coopérant avec le déclencheur pour l'ouverture automatique des contacts lors de l'apparition d'un courant de défaut,
  • - un barreau commun support des bras de contacts mobiles de tous les pôles et monté à rotation sur un axe durant une course angulaire prédéterminée correspondant au débattement de la manette,
  • - et un dispositif de réglage pour la compensation des tolérances de fabrication des organes de mécanisme.
The invention relates to a low-voltage multipole circuit breaker with molded housing and toggle actuation mechanism comprising:
  • - a control handle that can be moved manually between closed F and open 0 positions,
  • - a trigger hook cooperating with the trigger for the automatic opening of the contacts when a fault current appears,
  • a common bar supporting the movable contact arms of all the poles and mounted for rotation on an axis during a predetermined angular travel corresponding to the movement of the lever,
  • - And an adjustment device for compensating the manufacturing tolerances of the mechanism members.

Selon un disjoncteur connu du genre mentionné, le dispositif de réglage est constitué par une liaison réglable à came excentrée ménagée entre la biellette inférieure de la genouillère et un bras d'entraînement. Le réglage de la came est réalisé par le positionnement approprié d'une tête hexagonale d'une broche pour compenser au mieux les tolérances de fabrication. Ce dispositif est néanmoins compliqué et coûteux.According to a known circuit breaker of the kind mentioned, the adjustment device is constituted by an adjustable connection with an eccentric cam formed between the lower link of the toggle joint and a drive arm. The adjustment of the cam is achieved by the appropriate positioning of a hexagonal head of a spindle to best compensate for manufacturing tolerances. This device is nevertheless complicated and expensive.

L'invention a pour but de remédier à cet inconvénient et de permettre la réalisation d'un disjoncteur doté d'un dispositif de réglage simple, précis et économique.The object of the invention is to remedy this drawback and to allow the production of a circuit breaker provided with a simple, precise and economical adjustment device.

Le disjoncteur selon l'invention est caractérisé par le fait que ledit dispositif de réglage comporte un organe support du barreau et au moins une vis d'assemblage dudit organe à une partie fixe du disjoncteur tel que le vissage ou le dévissage de la vis provoque le rapprochement ou l'éloignement dudit organe par rapport à la partie fixe entraînant le déplacement limité bidirectionnel du barreau jusqu'à une position de réglage optimum.The circuit breaker according to the invention is characterized in that said adjustment device comprises a bar support member and at least one screw for assembling said member to a fixed part of the circuit breaker such that the screwing or unscrewing of the screw causes the approximation or distance of said body relative to the fixed part causing the bidirectional limited displacement of the bar to an optimum adjustment position.

Selon une caractéristique de l'invention, un moyen de blocage coopère avec ledit dispositif de réglage pour immobiliser ladite vis d'assemblage dans la position de réglage optimum appropriée à la meilleure compensation des tolérances de fabrication.According to a characteristic of the invention, a locking means cooperates with said adjustment device to immobilize said assembly screw in the optimum adjustment position suitable for the best compensation for manufacturing tolerances.

Selon une autre caractéristique de l'invention, ledit organe support du barreau comprend deux paliers de positionnement indépendants coopérant chacun avec une vis d'assemblage pour assurer ledit réglage optimum, et qu'un intervalle sépare lesdits paliers selon la direction transversale du barreau perpendiculaire aux bras de contacts.According to another characteristic of the invention, said support member of the bar comprises two independent positioning bearings each cooperating with a connecting screw to ensure said optimum adjustment, and that an interval separates said bearings in the transverse direction of the bar perpendicular to the contact arms.

D'autres avantages et caractéristiques ressortiront plus clairement de l'exposé qui va suivre de deux modes de mise en oeuvre de l'invention, donnés à titre d'exemples non limitatifs et représentés aux dessins annexés, dans lesquels :

  • la figure 1 est une vue en élévation et en coupe médiane d'un mécanisme d'actionnement équipé d'un dispositif de réglage selon l'invention;
  • la figure 2 est une vue en élévation du mécanisme selon la figure 1;
  • la figure 3 est une vue de côté, montrant le barreau et le dispositif de réglage associé;
  • la figure 4 est une vue en élévation et en coupe d'une variante de réalisation de l'invention, le disjoncteur étant représenté en position de fermeture.
Other advantages and characteristics will emerge more clearly from the description which follows of two embodiments of the invention, given by way of nonlimiting examples and represented in the appended drawings, in which:
  • Figure 1 is an elevational view in median section of an actuating mechanism equipped with an adjustment device according to the invention;
  • Figure 2 is an elevational view of the mechanism according to Figure 1;
  • Figure 3 is a side view showing the bar and the associated adjustment device;
  • Figure 4 is an elevational view in section of an alternative embodiment of the invention, the circuit breaker being shown in the closed position.

Sur les figures 1 à 3, un mécanisme d'actionnement 10 d'un disjoncteur tétrapolaire basse tension à boîtier moulé coopère avec l'un des pôles intermédiaires, le mouvement étant transmis aux pôles adjacents par un barreau transversal 12, en matériau isolant. Une manette 14 de commande manuelle est associée au mécanisme 10 et est susceptible d'occuper trois positions stables F de fermeture, D de déclenchement sur défaut, et 0 d'ouverture manuelle du disjoncteur. Le mécanisme 10 est monté entre deux platines 16 parallèles fixes de support, et comporte une genouillère 18 de transmission à axe 20 sur lequel sont articulées deux biellettes 22, 24. La biellette 22 est accouplée au barreau 12 par un axe de liaison 26, et la biellette 24 est articulée sur un crochet de déclenchement 28 en un point 30. Un ressort de traction 32 est ancré à l'axe 20 de la genouillère 16, et par son extrémité opposée à un berceau 34 solidaire de la manette 14. L'ensemble manette 14, berceau 34 est articulé sur un pivot 36 fixe porte par les platines 16. Le crochet de déclenchement 28 en forme de U est monté à pivotement sur un axe fixe 38 et coopère avec les détecteurs thermique et électromagnétique du bloc déclencheur (non représenté) du disjoncteur. Le crochet 28 comprend un bec d'accrochage 40 venant en engagement en position armée avec un verrou 42 monté à rotation sur un axe 44 entre des positions verrouillée et déverrouillée. Un organe de verrouillage 46 en forme de demi-lune, monté sur un axe 48 et qui coopère avec le verrou 42, est sollicité vers la position verrouillée du verrou 42 par l'action d'un ressort de rappel 50 enfilé sur l'axe 44. Lors d'une détection d'un courant de défaut par l'un des détecteurs thermique ou électromagnétique, le pivotement de la barre de déclenchement (non représentée) du déclencheur provoque le basculement de l'organe de verrouillage 46 dans le sens de la flèche fl pour déverrouiller le verrou 42 et libérer le bee d'accrochage 40 du crochet de déclenchement 28. Ce dernier pivote autour de l'axe 38 sous l'action du ressort 32 en déplaçant le point d'articulation 30 de la biellette 24 vers la droite sur la figure 1, entrai- nant l'ouverture des contacts des différents pôles du disjoncteur et le déplacement de la manette 14 vers la position stable D de déclenchement. Un tel fonctionnement est classique et il suffit de rappeler que le réarmement s'effectue par un déplacement de la manette 14 dans le sens des aiguilles d'une montre depuis la position D jusqu'à une position de réarmement (voir fig. 1) voisine de la position 0, assurant l'accrochage du crochet de déclenchement 2S au verrou 42 en position verrouillée. La fermeture du disjoncteur intervient après l'armement du crochet de déclenchement 28 par une rotation inverse de la manette 14 vers la position F.In FIGS. 1 to 3, an actuating mechanism 10 of a low-voltage four-pole circuit breaker with molded housing cooperates with one of the intermediate poles, the movement being transmitted to the adjacent poles by a transverse bar 12, made of insulating material. A manual control lever 14 is associated with the mechanism 10 and is capable of occupying three stable positions F for closing, D for tripping on a fault, and 0 for manual opening of the circuit breaker. The mechanism 10 is mounted between two parallel fixed support plates 16, and comprises a toggle link 18 with an axis 20 on which two links 22, 24 are articulated. The link 22 is coupled to the bar 12 by a connecting pin 26, and the link 24 is articulated on a trigger hook 28 at a point 30. A tension spring 32 is anchored to the axis 20 of the toggle joint 16, and by its end opposite to a cradle 34 secured to the lever 14. The lever assembly 14, cradle 34 is articulated on a fixed pivot 36 carried by the plates 16. The U-shaped trigger hook 28 is pivotally mounted on a fixed axis 38 and cooperates with the thermal and electromagnetic detectors of the trigger block (not shown) of the circuit breaker. The hook 28 comprises a hooking spout 40 coming into engagement in the armed position with a latch 42 rotatably mounted on an axis 44 between locked and unlocked positions. A locking member 46 in the shape of a half-moon, mounted on an axis 48 and which cooperates with the lock 42, is biased towards the locked position of the lock 42 by the action of a return spring 50 threaded on the axis 44. When a fault current is detected by one of the thermal or electromagnetic detectors, the pivoting of the trigger bar (not shown) of the trigger causes the locking member 46 to tilt in the direction of arrow f l to unlock the lock 42 and release the hooking bee 40 from the trigger hook 28. The latter pivots about the axis 38 under the action of the spring 32 by moving the articulation point 30 of the rod 24 to the right in FIG. 1 , causing the opening of the contacts of the different poles of the circuit breaker and the movement of the handle 14 to the stable tripping position D. Such operation is conventional and it suffices to recall that the reset is carried out by a movement of the lever 14 in a clockwise direction from the position D to a neighboring reset position (see fig. 1). from position 0, ensuring the hooking of the trigger hook 2S to the lock 42 in the locked position. The circuit breaker closes after arming the trip hook 28 by reverse rotation of the handle 14 to position F.

Le barreau 12 est monté à rotation sur un axe 52 et porte quatre bras de contacts 54 correspondant aux différents pôles. Chaque bras de contact 54 est articulé sur un axe 55 et port un contact mobile 56 coopérant avec un contact fixe 58. Chaque bras 54 est relié électriquement à une plage 60 correspondante par une tresse 62, et un ressort de compression 64 intercalé entre le bras 54 et le barreau 12 assure la pression de contact appropriée en position de fermeture du disjoncteur.The bar 12 is rotatably mounted on an axis 52 and carries four contact arms 54 corresponding to the different poles. Each contact arm 54 is articulated on an axis 55 and carries a movable contact 56 cooperating with a fixed contact 58. Each arm 54 is electrically connected to a corresponding pad 60 by a braid 62, and a compression spring 64 interposed between the arm 54 and the bar 12 ensures the appropriate contact pressure in the closed position of the circuit breaker.

Selon l'invention, le mécanisme d'actionnement 10 est équipé d'un dispositif de positionnement 66 du barreau 12 dont le réglage assure la compensation des tolérances de fabrication des organes de l'équipage mobile du mécanisme. L'axe 52 du barreau 12 prend appui sur deux paliers 68, 70 espacés, dotés de pattes de fixation 72, 74 faisant face aux chants des deux platines fixes 16 du mécanisme 10. Chaque patte de fixation 72, 74 est percée d'un orifice pour le passage d'une vis de réglage 76 du type Tarsid vissée dans un logement 78 de la platine 16 corrcs- pondante. Chaque palier 68, 70 est monté à pivotement sur un axe 73 solidaire de la platine 16 associée, et le vissage ou dévissage des vis 76 provoque le pivotement des paliers 68, 70 dans des plans parallèles au plan de débattement des bras de contact 54 et le déplacement relatif de l'axe de rotation 52 par rapport aux platines 16. Ce réglage est réalisé en usine, après le montage des organes du disjoncteur et un contre-écrou 80 de blocage est ensuite serré sur chaque patte de fixation 72, 74 des paliers 68, 70 pour immobiliser les vis 76 du dispositif de positionnement 66 dans la position de réglage optimum. Le mouvement de l'axe de rotation 52 du barreau 12 lors de ce réglage assure le positionnement correct des bras de contact 54 par rapport aux contacts fixes 58 correspondants de manière à obtenir une bonne pression de contact en position de fermeture du disjoncteur.According to the invention, the actuation mechanism 10 is equipped with a device 66 for positioning the bar 12, the adjustment of which ensures compensation for the manufacturing tolerances of the members of the movable member of the mechanism. The axis 52 of the bar 12 is supported on two spaced bearings 68, 70, provided with fixing lugs 72, 74 facing the edges of the two fixed plates 16 of the mechanism 10. Each fixing lug 72, 74 is pierced with a orifice for the passage of an adjustment screw 76 of the Tarsid type screwed into a housing 78 of the plate 16 corrcs- laying. Each bearing 68, 70 is pivotally mounted on an axis 73 integral with the associated plate 16, and the screwing or unscrewing of the screws 76 causes the bearings 68, 70 to pivot in planes parallel to the plane of movement of the contact arms 54 and the relative movement of the axis of rotation 52 with respect to the plates 16. This adjustment is carried out in the factory, after the assembly of the circuit breaker members and a locking nut 80 is then tightened on each fixing lug 72, 74 of the bearings 68, 70 for immobilizing the screws 76 of the positioning device 66 in the optimum adjustment position. The movement of the axis of rotation 52 of the bar 12 during this adjustment ensures the correct positioning of the contact arms 54 relative to the fixed contacts 58 corresponding so as to obtain a good contact pressure in the closed position of the circuit breaker.

La figure 4 montre une variante de réalisation d'un disjoncteur multipolaire dans lequel les mêmes repères seront utilisés pour désigner des pièces analogues ou identiques.Figure 4 shows an alternative embodiment of a multipole circuit breaker in which the same references will be used to designate similar or identical parts.

Le barreau 12 de support des bras de contacts 54 est positionné dans le compartiment inférieur 82 du boîtier 84 du disjoncteur, séparé du compartiment supérieur 86 de logement du mécanisme d'actionnement (non représenté) par une cloison 88 intermédiaire en matériau isolant. Une biellette 90 du mécanisme est accouplée au barreau 12 par l'axe de liaison 26. La chambre de coupure 92 de chaque pôle du compartiment inférieur 82 est munie d'une fenêtre 94 de passage du bras de contact 54 correspondant dont l'axe de rotation 55 est solidaire du barreau 12. L'ouverture des contacts 56, 58 des différents pôles s'opère par un pivotement du barreau 12 dans le sens trigonométrique entraînant le basculement vers le bas (indiqué par la flèche f2) des bras de contact 54 en direction de la plaque de base 96 du boîtier 84.The bar 12 for supporting the contact arms 54 is positioned in the lower compartment 82 of the case 84 of the circuit breaker, separated from the upper compartment 86 for housing the actuating mechanism (not shown) by a partition 88 intermediate in insulating material. A link 90 of the mechanism is coupled to the bar 12 by the connecting axis 26. The breaking chamber 92 of each pole of the lower compartment 82 is provided with a window 94 for passage of the corresponding contact arm 54 whose axis of rotation 55 is integral with the bar 12. The opening of the contacts 56, 58 of the different poles is effected by a pivoting of the bar 12 in the counterclockwise direction causing the tilting of the contact arms downward (indicated by the arrow f 2 ) 54 in the direction of the base plate 96 of the housing 84.

Le dispositif de positionnement 66 du barreau 12 comporte deux paliers 68, 70 assujettis à la cloison intermédiaire 88 parallèle à la plaque de base 96 par des vis d'assemblage à têtes 98 hexagonales accessibles dans le compartiment supérieur 86 en position démontée du couvercle 100. Le vissage ou le dévissage des vis 76 provoque une translation verticale dans le sens d'un rapprochement ou d'un éloignement des paliers 68, 70 et du barreau 12 par rapport à la cloison intermédiaire 88, et permet ainsi le réglage optimum de l'enfoncement des bras de contact 54 pour compenser au mieux les tolérances de fabrication. Une plaquette de freinage 102,intercalée entre la tête 98 des vis 76 et la cloison intermédiaire 88, bloque le dispositif de positionnement réglable 66 dans cette position après réglage en usine.The positioning device 66 of the bar 12 comprises two bearings 68, 70 secured to the intermediate partition 88 parallel to the base plate 96 by assembly screws with hexagonal heads 98 accessible in the upper compartment 86 in the disassembled position of the cover 100. The screwing or unscrewing of the screws 76 causes a vertical translation in the direction of bringing the bearings 68, 70 and the bar 12 closer or further away from the intermediate partition 88, and thus allows optimum adjustment of the depression of the contact arms 54 to best compensate for manufacturing tolerances. A brake pad 102, interposed between the head 98 of the screws 76 and the intermediate partition 88, blocks the adjustable positioning device 66 in this position after factory setting.

L'invention n'est bien entendu nullement limitée aux modes de mise en oeuvre plus particulièrement décrits et représentés aux dessins -annexés, mais elle s'étend bien au contraire à toute variante restant dans le cadre des équivalences électriques et mécaniques, notamment celle dans laquelle le dispositif de positionnement 66 réglable selon l'invention provoquerait un déplacement de l'axe de rotation 55 des bras de contacts 54, ou celle dans laquelle ledit dispositif de réglage 66 agirait au niveau des contacts fixes 58.The invention is of course in no way limited to the modes of implementation more particularly described and represented in the appended drawings, but it extends quite the contrary to any variant remaining within the framework of electrical and mechanical equivalences, in particular that in which the adjustable positioning device 66 according to the invention would cause a displacement of the axis of rotation 55 of the contact arms 54, or that in which said adjusting device 66 would act at the level of the fixed contacts 58.

Claims (8)

1. Disjoncteur multipolaire basse tension à boîtier moulé et à mécanisme (10) d'actionnement à genouillère comprenant : - une manette (14) de commande déplaçable manuellement entre des positions F de fermeture et 0 d'ouverture, - un crochet (28) de déclenchement coopérant avec le déclencheur pour 1 'ouverture automatique des contacts (56, 58) lors de l'apparition d'un courant de défaut, - un barreau (12) commun support des bras (54) de contacts mobiles de tous les pôles, et monté à rotation sur un axe (52) durant une course angulaire prédéterminée correspondant au débattement de la manette (14), - et un dispositif (66) de réglage pour la compensation des tolérances de fabrication des organes de mécanisme, caractérisé par le fait que ledit dispositif (66) de réglage comporte un organe (68, 70) support du barreau (12) et au moins une vis (76) d'assemblage dudit organe à une partie (16, 88) fixe du disjoncteur tel que le vissage ou le dévissage de la vis (76) provoque le rapprochement ou l'éloignement dudit organe (68, 70) par rapport à la partie (16, 88) fixe entraînant le déplacement limité bidirectionnel du barreau (12) jusqu'à une position de réglage optimum. 1. Low-voltage multipole circuit breaker with molded case and with toggle actuation mechanism (10) comprising: - a control handle (14) which can be moved manually between positions F for closing and 0 for opening, - a trigger hook (28) cooperating with the trigger for the automatic opening of the contacts (56, 58) when a fault current appears, a common bar (12) supporting the arms (54) of movable contacts of all the poles, and mounted for rotation on an axis (52) during a predetermined angular travel corresponding to the movement of the lever (14), - And a device (66) for adjusting the manufacturing tolerances of the mechanism members, characterized in that said device (66) for adjustment comprises a member (68, 70) supporting the bar (12) and at least a screw (76) for assembling said member to a fixed part (16, 88) of the circuit breaker such that the screwing or unscrewing of the screw (76) causes said member (68, 70) to approach or move away from to the fixed part (16, 88) causing the bidirectional limited displacement of the bar (12) to an optimum adjustment position. 2. Disjoncteur multipolaire selon 1, caractérisé par le fait qu'un moyen (80) de blocage coopère avec ledit dispositif (66) de réglage pour immobiliser ladite vis (76) d'assemblage dans la position de réglage optimum appropriée à la meilleure compensation des tolérances de fabrication.2. Multipolar circuit breaker according to 1, characterized in that a blocking means (80) cooperates with said adjustment device (66) to immobilize said assembly screw (76) in the optimum adjustment position suitable for the best compensation manufacturing tolerances. 3. Disjoncteur multipolaire selon 1 ou 2, caractérisé par le fait que ledit organe support du barreau (12) comprend deux paliers (68, 70) de positionnement indépendants coopérant chacun avec une vis (76) d'assemblage pour assurer ledit réglage optimum, et que lesdits paliers sont espacés dans la direction longitudinale du barreau (12).3. Multipolar circuit breaker according to 1 or 2, characterized in that said support member of the bar (12) comprises two bearings (68, 70) for independent positioning co each operating with a connecting screw (76) to ensure said optimum adjustment, and that said bearings are spaced in the longitudinal direction of the bar (12). 4. Disjoncteur multipolaire selon 3, dans lequel le mécanisme (10) d'actionnement à genouillère est logé entre deux platines (16) fixes parallèles, caractérisé par le fait que ladite partie fixe est constituée par les platines (16) du mécanisme et que chaque palier (68, 70) est doté d'une patte (72, 74) de fixation s'étendant devant une platine (16) et percée d'un orifice pour le passage de la vis (76) d'assemblage introduite dans un logement (78) aligné de ladite platine.4. Multipolar circuit breaker according to 3, in which the toggle actuation mechanism (10) is housed between two parallel fixed plates (16), characterized by the fact that said fixed part consists of the plates (16) of the mechanism and that each bearing (68, 70) is provided with a fixing lug (72, 74) extending in front of a plate (16) and pierced with an orifice for the passage of the assembly screw (76) introduced into a housing (78) aligned with said plate. 5. Disjoncteur multipolaire selon 4, caractérisé par le fait que chaque palier (68, 70) est monté à rotation limitée sur un axe (73) solidaire de la platine (16) associée pour assurer ledit réglage.5. Multipolar circuit breaker according to 4, characterized in that each bearing (68, 70) is mounted with limited rotation on an axis (73) integral with the plate (16) associated to ensure said adjustment. 6. Disjoncteur multipolaire selon 4 ou 5, caractérisé par le fait que le réglage en longueur des vis (76) d'assemblage provoque un mouvement des paliers (68, 70) dans des plans parallèles au plan de débattement des bras 54 de contact.6. Multipolar circuit breaker according to 4 or 5, characterized in that the length adjustment of the assembly screws (76) causes movement of the bearings (68, 70) in planes parallel to the plane of travel of the contact arms 54. 7. Disjoncteur multipolaire selon 1, 2 ou 3, dans lequel une cloison (88) intermédiaire partage l'espace interne du boîtier (84) en deux compartiments (82, 86) superposés inférieur et supérieur, caractérisé par le fait que le barreau (12) est logé dans le compartiment inférieur (82) avec l'ensemble des pôles et que ladite partie fixe est constituée par la cloison (88) intermédiaire traversée par les vis (76) d'assemblage dont le réglage en longueur assure le déplacement de l'axe (52) de rotation du barreau (12) selon un mouvement de translation verticale jusqu'à ladite position optimum.7. Multipole circuit breaker according to 1, 2 or 3, in which an intermediate partition (88) divides the internal space of the housing (84) into two compartments (82, 86) superposed on the lower and upper, characterized in that the bar ( 12) is housed in the lower compartment (82) with all of the poles and that said fixed part is constituted by the intermediate partition (88) crossed by the assembly screws (76) whose length adjustment ensures the displacement of the axis (52) of rotation of the bar (12) in a vertical translational movement to said optimum position. 8. Disjoncteur multipolaire selon 1, 2 ou 3, caractérisé par le fait que le dispositif de réglage coopère avec le barreau (12) pour assurer le déplacement limité de l'axe (55) de rotation des bras (54) de contacts jusqu'à ladite position optimum.8. Multipolar circuit breaker according to 1, 2 or 3, characterized in that the adjustment device cooperates with the bar (12) to ensure the limited displacement of the axis (55) of rotation of the arms (54) of contacts up to at said optimum position.
EP19790400626 1978-09-12 1979-09-07 Low voltage multi-pole circuit breaker provided with a device for setting the bar Expired EP0008990B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7826382 1978-09-12
FR7826382A FR2436492A1 (en) 1978-09-12 1978-09-12 LOW VOLTAGE MULTIPOLLE CIRCUIT BREAKER EQUIPPED WITH A ROD POSITIONING DEVICE

Publications (2)

Publication Number Publication Date
EP0008990A1 true EP0008990A1 (en) 1980-03-19
EP0008990B1 EP0008990B1 (en) 1982-06-30

Family

ID=9212634

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19790400626 Expired EP0008990B1 (en) 1978-09-12 1979-09-07 Low voltage multi-pole circuit breaker provided with a device for setting the bar

Country Status (5)

Country Link
EP (1) EP0008990B1 (en)
DE (1) DE2963246D1 (en)
FR (1) FR2436492A1 (en)
SG (1) SG61085G (en)
YU (2) YU219079A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2633772A1 (en) * 1988-04-11 1990-01-05 Gen Electric CIRCUIT BREAKER HANDLE IN MOLDED HOUSING FOR AUTOMATED ASSEMBLY
EP0616351A1 (en) * 1993-03-19 1994-09-21 Siemens Aktiengesellschaft Switching device, in particular circuit breaker

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE420966C (en) * 1924-03-04 1925-11-05 Maffei Schwartzkopff Werke G M Rolling contact
GB509879A (en) * 1938-09-05 1939-07-24 Herbert Bagshaw Prentice Improvements in or relating to electric overload trip switches
DE1102867B (en) * 1959-06-18 1961-03-23 Licentia Gmbh Electric circuit breaker
US3265833A (en) * 1964-06-03 1966-08-09 Gen Electric Electric circuit breaker operating mechanism and improved supporting plates therefor
US3341791A (en) * 1964-06-16 1967-09-12 Square D Co Electric circuit breaker with improved operating mechanism
FR2295553A1 (en) * 1974-12-17 1976-07-16 Saparel Circuit breaker for consumer - uses single unit in multiple format with arc extinction and optional trips

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE420966C (en) * 1924-03-04 1925-11-05 Maffei Schwartzkopff Werke G M Rolling contact
GB509879A (en) * 1938-09-05 1939-07-24 Herbert Bagshaw Prentice Improvements in or relating to electric overload trip switches
DE1102867B (en) * 1959-06-18 1961-03-23 Licentia Gmbh Electric circuit breaker
US3265833A (en) * 1964-06-03 1966-08-09 Gen Electric Electric circuit breaker operating mechanism and improved supporting plates therefor
US3341791A (en) * 1964-06-16 1967-09-12 Square D Co Electric circuit breaker with improved operating mechanism
FR2295553A1 (en) * 1974-12-17 1976-07-16 Saparel Circuit breaker for consumer - uses single unit in multiple format with arc extinction and optional trips

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2633772A1 (en) * 1988-04-11 1990-01-05 Gen Electric CIRCUIT BREAKER HANDLE IN MOLDED HOUSING FOR AUTOMATED ASSEMBLY
EP0616351A1 (en) * 1993-03-19 1994-09-21 Siemens Aktiengesellschaft Switching device, in particular circuit breaker
TR27419A (en) * 1993-03-19 1995-04-14 Siemens Ag Switching equipment, especially protection switch.

Also Published As

Publication number Publication date
SG61085G (en) 1988-05-20
FR2436492B1 (en) 1981-02-13
YU219079A (en) 1982-06-30
FR2436492A1 (en) 1980-04-11
EP0008990B1 (en) 1982-06-30
YU41176B (en) 1986-12-31
DE2963246D1 (en) 1982-08-19

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