EP2351061B1 - Pivot mechanism for a lock to trip a circuit breaker-type electrical apparatus for cutting off electrical lines - Google Patents

Pivot mechanism for a lock to trip a circuit breaker-type electrical apparatus for cutting off electrical lines Download PDF

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Publication number
EP2351061B1
EP2351061B1 EP09797098A EP09797098A EP2351061B1 EP 2351061 B1 EP2351061 B1 EP 2351061B1 EP 09797098 A EP09797098 A EP 09797098A EP 09797098 A EP09797098 A EP 09797098A EP 2351061 B1 EP2351061 B1 EP 2351061B1
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EP
European Patent Office
Prior art keywords
arms
toggle
orifice
section
cutting equipment
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EP09797098A
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German (de)
French (fr)
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EP2351061A1 (en
Inventor
Francis Deckert
Loïc Meyer
Davy Morian
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Hager Electro SAS
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Hager Electro SAS
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Publication of EP2351061A1 publication Critical patent/EP2351061A1/en
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    • 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
    • H01H71/52—Manual reset mechanisms which may be also used for manual release actuated by lever
    • H01H71/522—Manual reset mechanisms which may be also used for manual release actuated by lever comprising a cradle-mechanism
    • H01H71/525—Manual reset mechanisms which may be also used for manual release actuated by lever comprising a cradle-mechanism comprising a toggle between cradle and contact arm and mechanism spring acting between handle and toggle knee
    • 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
    • H01H71/02—Housings; Casings; Bases; Mountings
    • H01H71/0207—Mounting or assembling the different parts of the circuit breaker

Definitions

  • the present invention is applicable to a hinge mechanism for electric circuit breaker trigger lock of the circuit breaker type.
  • Such devices typically comprise at least one movable contact capable of moving between two positions respectively in contact and at a distance from a fixed contact, respectively corresponding to the closing and opening of the line.
  • the mechanical lock is actuated by a control lever of the movable contact between its two positions and comprises in particular a toggle joint with two parallel branches connecting said handle to (x) contact (s) movable (s), means of return of the knee lever in the open position and a pivoting trigger relative to the toggle joint by means of the hinge mechanism.
  • the function of this trigger is to trigger the lock so that the electrical device is in the open position of the contacts.
  • the articulation mechanism of such mechanical locks can not take the conventional form of a free shaft rotated in bearings, because the return means are in this case constituted by a spring which extends between the branches of the knee, and therefore does not allow the passage of a single transverse shaft connecting said branches.
  • the joint is thus managed on each side by a pin or equivalent protruding from one of the elements of the toggle and pivoting in a trigger bearing, typically a circular orifice.
  • An inverted U-lever attached to the joystick covers the knee / trigger assembly. Its side walls are applied to the outside and cover on both sides the knee / trigger joints, and more particularly the portions of the journals which protrude from the external lateral faces of the release.
  • This solution may cause unwanted friction of the free end of the trunnions on the inner faces of the side walls of the U-shaped lever, making the operation less "fluid” and may cause wear of the components.
  • the remedy could be to virtually do not exceed the trunnions of the trigger holes.
  • the lateral walls of the latter have a tendency to deviate from each other at the moment of the trigger, especially in the region of the joints, and it could then at worst occur a disengagement of the knee and trigger. It is therefore necessary to find a compromise in the choice of the height of the trunnions, to reduce as much as possible the friction but not to allow said disengagement.
  • the present invention provides a solution that does not rely on the structure described above, but is based on a frictionless operating configuration and preventing any uncoupling.
  • the release comprises two facing orifices formed in side walls perpendicular to the pivot axis and forming bearings allowing a pivot connection for two parallel arms of a first element of the toggle joint, said orifices being located at an outward lateral shift respectively inwardly of each sidewall, forming a slot of a shape perpendicular to the walls for the passage of said arms.
  • This slot extends firstly into a first orifice portion made in the non-shifted portion of the walls and allowing insertion of the ends of said arms, and secondly into a second orifice portion in the shifted portion, at least partially provided with a bottom to form a housing opening towards the inside respectively towards the outside of the walls, the periphery of said housing being rounded and able to guide the rotation of the rounded end of the arms of the knee pad.
  • the solution of the invention has also been designed so as to obtain all forms by cutting-bending-stamping / striking, to facilitate the manufacture of the components of the mechanism according to traditional mechanical techniques automatable.
  • hinge mechanism as explained above allows precisely the maintenance in all cases of the first element of the toggle lever in the bearings made by the particular-shaped orifices formed in the side walls of the release.
  • the offset that exists between the plane of the ends of the arms of the element of the toggle joint and the walls of the trigger at each orifice allows, in combination with the particular form of this orifice, a mounting of the one in the other and, in the mounted position, a locking of one in the other which does not prevent the pivoting movement necessary for the operation of the assembly.
  • the plane of the end of rounded pace is located, in the extension of each arm, laterally offset to the opposite arm.
  • each orifice is partially separated by a cam guiding the end of the toggle arms from the first to the second portion of each orifice, said cam being located so as to block each of said ends in its housing when it is inserted there.
  • the cam comprises, in the vicinity of the first portion of the orifice, a first part with a rounded ramp, followed by a top forming a locking stop for the ends of the arms in their housing.
  • the bottom of the second portion of each port and the offset of the end of the arms of the toggle are obtained by striking / stamping.
  • the manufacturing is therefore performed by simple operations, automatable and easily controllable in the context of an industrial manufacturing process.
  • One of the technical advantages of the hinge mechanism of the invention lies in the particular configuration avoiding friction between the arms of the toggle joint and the inverted lever which is fixed to the control handle of the electrical equipment equipped with a such system.
  • a second important advantage results from the lateral support of the arms of the toggle which is ensured by the particular configuration used.
  • the toggle joint consists of a pair of upper arms (1, 2) articulated by means of a shaft (3) to a pair of lower links (4, 5).
  • the arms pairs (1, 2) / rods (4, 5) constitute the parallel branches of the toggle joint.
  • the latter retransmits the movement of a control member (not shown) to movable contacts in the direction of opening and closing.
  • a trigger lock of a switchgear according to the invention mounted with a pivoting connection to a part called trigger (6) which is able to unlock in particular to the by means of return means the stable position resulting from the closure of the contacts, according to a conventional design well known per se.
  • the trigger (6) appears in figure 2 . It is a part with two lateral faces (7, 8) each provided with an orifice (9, 10) in which are inserted the arms (1, 2) of the link. These orifices (9, 10) are located at a lateral walls (7, 8) having an outward lateral shift (11, 12) which is more particularly Figures 3 and 4 .
  • the rounded ends (13, 14) of said arms (1, 2) comprise an inward shift, for example obtained by striking.
  • the shape of the orifices (9, 10) appears more clearly in figure 5 .
  • the second portion (16) of said orifice (9), located in the offset portion (placed above the offset (11) of the wall (7)) has a rounded shape that can accommodate said end (13) of the arm (1) and it is provided with a bottom outward supplementing said housing.
  • this housing formed in the second portion (16) of the orifice (9) opens towards the inside of the wall (7), and houses the end (13) offset outwards. (see figure 1 ) of the arm (1), thus preventing any lateral movement towards the outside of the latter.
  • a cam (17) guides the end (13) of the arm (1) of the first portion (15) of the orifice (9) through which it is inserted to the second portion (16), in which it is housed permanently after insertion. This cam (17) also retains the end (13) in the second portion (16) of the orifice (9), preventing the reverse path of the insertion path of the toggle in the trigger (6).
  • the cam (17) is in the first portion (15) of the orifice (9), that is to say that which is located in the side wall of the trigger (6) which is not shifted towards the 'outside. Thanks to the particular shape of the orifice (9), and the inverted double offset of the rounded ends (13, 14) of the arms (1, 2) on the one hand (see figure 1 ) and the upper parts of the side walls (7, 8) of the trigger (6) on the other hand, the joint plays its role fully by leaving a degree of freedom of pivoting to both parts and resisting any shocks.
  • an inverted U-lever (18) integral with the control lever (19) cooperates with rounded protrusions (20) of the release (6) through curved surfaces (21) of said lever (18). ) to facilitate the transmission of the movement of the lever (19) to the toggle via the trigger (6) against the powerful return means used in this type of product.

Landscapes

  • Pivots And Pivotal Connections (AREA)
  • Mechanisms For Operating Contacts (AREA)
  • Breakers (AREA)
  • Lock And Its Accessories (AREA)

Description

La présente invention s'applique à un mécanisme d'articulation pour serrure de déclenchement d'appareil électrique de coupure de ligne du type disjoncteur. De tels appareils comportent classiquement au moins un contact mobile apte à se déplacer entre deux positions respectivement au contact et à distance d'un contact fixe, correspondant respectivement à la fermeture et à l'ouverture de la ligne.The present invention is applicable to a hinge mechanism for electric circuit breaker trigger lock of the circuit breaker type. Such devices typically comprise at least one movable contact capable of moving between two positions respectively in contact and at a distance from a fixed contact, respectively corresponding to the closing and opening of the line.

La serrure mécanique est actionnée par une manette de commande du contact mobile entre ses deux positions et comprend notamment une genouillère à deux branches d'allure parallèle reliant ladite manette au(x) contact(s) mobile(s), des moyens de rappel de la genouillère en position d'ouverture et un déclencheur pivotant par rapport à la genouillère au moyen du mécanisme d'articulation. La fonction de ce déclencheur est de faire déclencher la serrure de sorte que l'appareil électrique se retrouve en position d'ouverture des contacts.The mechanical lock is actuated by a control lever of the movable contact between its two positions and comprises in particular a toggle joint with two parallel branches connecting said handle to (x) contact (s) movable (s), means of return of the knee lever in the open position and a pivoting trigger relative to the toggle joint by means of the hinge mechanism. The function of this trigger is to trigger the lock so that the electrical device is in the open position of the contacts.

Le mécanisme d'articulation de telles serrures mécaniques ne peut pas prendre la forme classique d'un arbre libre en rotation dans des paliers, car les moyens de rappel sont en l'espèce constitués d'un ressort qui s'étend entre les branches de la genouillère, et qui ne permet dès lors pas le passage d'un arbre transversal unique reliant lesdites branches. Dans les configurations actuelles, l'articulation est donc gérée de chaque côté par un tourillon ou équivalent dépassant d'un des éléments de la genouillère et pivotant dans un palier du déclencheur, typiquement un orifice circulaire.The articulation mechanism of such mechanical locks can not take the conventional form of a free shaft rotated in bearings, because the return means are in this case constituted by a spring which extends between the branches of the knee, and therefore does not allow the passage of a single transverse shaft connecting said branches. In the current configurations, the joint is thus managed on each side by a pin or equivalent protruding from one of the elements of the toggle and pivoting in a trigger bearing, typically a circular orifice.

Un levier en U inversé solidaire de la manette de commande chapeaute l'ensemble genouillère/déclencheur. Ses parois latérales s'appliquent à l'extérieur et recouvrent des deux côtés les articulations genouillère/déclencheur, et plus particulièrement les portions des tourillons qui dépassent des faces latérales externes du déclencheur.An inverted U-lever attached to the joystick covers the knee / trigger assembly. Its side walls are applied to the outside and cover on both sides the knee / trigger joints, and more particularly the portions of the journals which protrude from the external lateral faces of the release.

Cette solution peut provoquer des frottements intempestifs de l'extrémité libre des tourillons sur les faces internes des parois latérales du levier en U, rendant le fonctionnement moins « fluide » et pouvant occasionner une usure des composants. Le remède pourrait consister à ne pratiquement pas faire dépasser les tourillons des orifices du déclencheur. Les parois latérales de ce dernier ont cependant tendance à s'écarter l'une de l'autre au moment du déclenchement, notamment dans la région des articulations, et il pourrait alors au pire se produire une désolidarisation de la genouillère et du déclencheur. Il faut donc trouver un compromis dans le choix de la hauteur des tourillons, pour réduire autant que possible les frottements mais ne pas permettre ladite désolidarisation.This solution may cause unwanted friction of the free end of the trunnions on the inner faces of the side walls of the U-shaped lever, making the operation less "fluid" and may cause wear of the components. The remedy could be to virtually do not exceed the trunnions of the trigger holes. The lateral walls of the latter, however, have a tendency to deviate from each other at the moment of the trigger, especially in the region of the joints, and it could then at worst occur a disengagement of the knee and trigger. It is therefore necessary to find a compromise in the choice of the height of the trunnions, to reduce as much as possible the friction but not to allow said disengagement.

La présente invention propose une solution qui ne fait pas appel à la structure décrite ci-dessus, mais est basée sur une configuration fonctionnant sans frottements et empêchant toute désolidarisation.The present invention provides a solution that does not rely on the structure described above, but is based on a frictionless operating configuration and preventing any uncoupling.

Selon l'invention, le déclencheur comporte deux orifices en regard pratiqués dans des parois latérales perpendiculaires à l'axe de pivotement et formant des paliers autorisant une liaison à pivotement pour deux bras parallèles d'un premier élément de la genouillère, lesdits orifices étant localisés au niveau d'un décalage latéral vers l'extérieur respectivement vers l'intérieur de chaque paroi latérale, formant une fente d'allure perpendiculaire aux parois pour le passage desdits bras. Cette fente se prolonge d'une part en une première portion d'orifice pratiquée dans la partie non décalée des parois et permettant l'insertion des extrémités desdits bras, et d'autre part en une deuxième portion d'orifice dans la partie décalée, munie au moins partiellement d'un fond pour constituer un logement s'ouvrant vers l'intérieur respectivement vers l'extérieur des parois, la périphérie dudit logement étant arrondie et apte à guider la rotation de l'extrémité d'allure arrondie des bras de la genouillère.According to the invention, the release comprises two facing orifices formed in side walls perpendicular to the pivot axis and forming bearings allowing a pivot connection for two parallel arms of a first element of the toggle joint, said orifices being located at an outward lateral shift respectively inwardly of each sidewall, forming a slot of a shape perpendicular to the walls for the passage of said arms. This slot extends firstly into a first orifice portion made in the non-shifted portion of the walls and allowing insertion of the ends of said arms, and secondly into a second orifice portion in the shifted portion, at least partially provided with a bottom to form a housing opening towards the inside respectively towards the outside of the walls, the periphery of said housing being rounded and able to guide the rotation of the rounded end of the arms of the knee pad.

La forme particulière des orifices en regard, ainsi que la configuration à décalage conférée aux parois latérales au niveau des orifices permet de réaliser dans de bonnes conditions l'insertion en vue de sa fixation de l'élément de la genouillère dans le déclencheur, de sorte que le degré de liberté en rotation soit de surcroît préservé.The particular shape of the orifices opposite, as well as the offset configuration imparted to the side walls at the orifices makes it possible to perform the insertion in good conditions in order to fix the element of the toggle joint in the release, so that that the degree of freedom in rotation is moreover preserved.

La solution de l'invention a de plus été conçue de manière à pouvoir obtenir l'ensemble des formes par découpe-cambrage-estampage/frappage, pour faciliter la fabrication des composants du mécanisme selon des techniques mécaniques traditionnelles automatisables.The solution of the invention has also been designed so as to obtain all forms by cutting-bending-stamping / striking, to facilitate the manufacture of the components of the mechanism according to traditional mechanical techniques automatable.

L'un des problèmes auquel est confronté le concepteur, pour ce genre d'articulations, naît de l'existence de sollicitations mécaniques particulières au moment de l'ouverture de l'appareil électrique de coupure en cas de problèmes de surcharges ou de surtensions sur une ligne.One of the problems facing the designer, for this kind of joints, arises from the existence of special mechanical stresses at the time of opening of the electrical cutoff device in case of problems of overloads or overvoltages on a line.

Dans ce cas, le choc brutal au moment de l'ouverture ne doit évidemment pas modifier et encore moins démonter/détruire la liaison à pivotement dont il est question dans le cadre de la présente invention.In this case, the brutal shock at the time of opening must obviously not change, let alone dismantle / destroy the pivot link that is in question in the context of the present invention.

La conception du mécanisme d'articulation telle qu'expliquée auparavant permet précisément le maintien dans tous les cas du premier élément de la genouillère dans les paliers de fait réalisés par les orifices de forme particulière pratiqués dans les parois latérales du déclencheur.The design of the hinge mechanism as explained above allows precisely the maintenance in all cases of the first element of the toggle lever in the bearings made by the particular-shaped orifices formed in the side walls of the release.

Dans l'hypothèse de l'invention, il n'y a pas de possibilité d'échappement latéral du fait du fond - par exemple obtenu par estampage - qui équipe la deuxième portion de chaque orifice, de part et d'autre de l'axe de pivotement.In the case of the invention, there is no possibility of lateral escape due to the bottom - for example obtained by stamping - which equips the second portion of each orifice, on either side of the pivot axis.

Le décalage qui existe entre le plan des extrémités des bras de l'élément de la genouillère et les parois du déclencheur au niveau de chaque orifice permet, en combinaison avec la forme particulière de cet orifice, un montage de l'un dans l'autre et, en position montée, un verrouillage de l'un dans l'autre qui n'empêche pas le mouvement de pivotement nécessaire au fonctionnement de l'ensemble.The offset that exists between the plane of the ends of the arms of the element of the toggle joint and the walls of the trigger at each orifice allows, in combination with the particular form of this orifice, a mounting of the one in the other and, in the mounted position, a locking of one in the other which does not prevent the pivoting movement necessary for the operation of the assembly.

Selon une configuration possible de la genouillère, le plan de l'extrémité d'allure arrondie est situé, dans le prolongement de chaque bras, latéralement décalé vers le bras opposé.According to a possible configuration of the toggle joint, the plane of the end of rounded pace is located, in the extension of each arm, laterally offset to the opposite arm.

Dans le mécanisme de l'invention, il y a donc un double décalage qui se situe au niveau des bras d'une part, et au niveau des orifices pratiqués dans les parois latérales du déclencheur d'autre part. En position de montage, ces deux décalages sont inversés, augmentant la solidité de la liaison et assurant sa sécurité : les composants sont reliés de façon pérenne.In the mechanism of the invention, there is therefore a double shift which is located at the arms on the one hand, and at the openings in the side walls of the trigger on the other hand. In the mounting position, these two offsets are reversed, increasing the strength of the connection and ensuring its safety: the components are connected permanently.

En fait, les deux portions de chaque orifice sont partiellement séparées par une came guidant l'extrémité des bras de la genouillère de la première vers la seconde portion de chaque orifice, ladite came étant localisée de manière à bloquer chacune desdites extrémités dans son logement lorsqu'elle y est insérée.In fact, the two portions of each orifice are partially separated by a cam guiding the end of the toggle arms from the first to the second portion of each orifice, said cam being located so as to block each of said ends in its housing when it is inserted there.

Au moment de l'ouverture de la serrure provoquant un mouvement brutal se répercutant au niveau de la liaison mécanique entre la genouillère et le déclencheur, l'existence de cette came permet d'empêcher que les pièces ne se désolidarisent, en permettant un appui de l'une sur l'autre qui contrecarre leur tendance à s'écarter voire, pour ce qui concerne les bras de la genouillère, à ressortir de leurs orifices.At the time of opening of the lock causing a sudden movement reverberating at the mechanical connection between the toggle and the trigger, the existence of this cam prevents the parts from disengaging, allowing a support of the one on the other which counteracts their tendency to deviate or, as far as the arms of the knee brace, to emerge from their orifices.

La came comporte à cet effet au voisinage de la première portion de l'orifice une première partie en rampe arrondie, suivie d'un sommet formant butée de blocage des extrémités des bras dans leur logement.For this purpose, the cam comprises, in the vicinity of the first portion of the orifice, a first part with a rounded ramp, followed by a top forming a locking stop for the ends of the arms in their housing.

De préférence, le fond de la seconde portion de chaque orifice et le décalage de l'extrémité des bras de la genouillère sont obtenus par frappage/estampage.Preferably, the bottom of the second portion of each port and the offset of the end of the arms of the toggle are obtained by striking / stamping.

La fabrication s'effectue dès lors par des opérations simples, automatisables et aisément maîtrisables dans le cadre d'un procédé industriel de fabrication.The manufacturing is therefore performed by simple operations, automatable and easily controllable in the context of an industrial manufacturing process.

L'un des avantages techniques du mécanisme d'articulation de l'invention réside dans la configuration particulière évitant les frottements entre les bras de la genouillère et le levier inversé qui est fixé à la manette de commande de l'appareillage électrique équipé d'un tel système. Un second avantage important résulte du maintien latéral des bras de la genouillère qui est assuré par la configuration particulière utilisée.One of the technical advantages of the hinge mechanism of the invention lies in the particular configuration avoiding friction between the arms of the toggle joint and the inverted lever which is fixed to the control handle of the electrical equipment equipped with a such system. A second important advantage results from the lateral support of the arms of the toggle which is ensured by the particular configuration used.

L'invention va à présent être décrite plus en détail, en référence aux figures jointes, pour lesquelles :

  • la figure 1 est une vue en perspective de la genouillère ;
  • la figure 2 représente, toujours en vue perspective, une partie d'un appareil de coupure comportant le mécanisme d'articulation de l'invention ;
  • la figure 3 est une vue de face de la représentation de la figure 2 ;
  • la figure 4 représente une vue en section d'un détail agrandi de l'articulation de droite de la figure précédente ; et
  • la figure 5 montre, dans un plan de symétrie médiane, le mécanisme d'articulation selon l'invention.
The invention will now be described in more detail with reference to the attached figures, in which:
  • the figure 1 is a perspective view of the knee pad;
  • the figure 2 represents, still in perspective view, a portion of a cutting apparatus comprising the hinge mechanism of the invention;
  • the figure 3 is a front view of the representation of the figure 2 ;
  • the figure 4 represents a sectional view of an enlarged detail of the right hinge of the preceding figure; and
  • the figure 5 shows, in a median plane of symmetry, the hinge mechanism according to the invention.

En référence à la figure 1, la genouillère se compose d'une paire de bras supérieurs (1, 2) articulés au moyen d'un arbre (3) à une paire de biellettes inférieures (4, 5). Les paires bras (1,2)/biellettes (4,5) constituent les branches d'allure parallèle de la genouillère. Cette dernière permet de retransmettre le déplacement d'un organe de commande (non représenté) à des contacts mobiles, dans le sens de l'ouverture et de la fermeture. Elle est de plus prévue pour être, dans le cadre d'une serrure de déclenchement d'un appareil de coupure selon l'invention, montée avec une liaison pivotante à une pièce appelée déclencheur (6) qui est apte à déverrouiller notamment à l'aide de moyens de rappel la position stable résultant de la fermeture des contacts, selon une conception classique bien connue en soi.With reference to the figure 1 , the toggle joint consists of a pair of upper arms (1, 2) articulated by means of a shaft (3) to a pair of lower links (4, 5). The arms pairs (1, 2) / rods (4, 5) constitute the parallel branches of the toggle joint. The latter retransmits the movement of a control member (not shown) to movable contacts in the direction of opening and closing. It is also intended to be, in the context of a trigger lock of a switchgear according to the invention, mounted with a pivoting connection to a part called trigger (6) which is able to unlock in particular to the by means of return means the stable position resulting from the closure of the contacts, according to a conventional design well known per se.

Le déclencheur (6) apparaît en figure 2. Il s'agit d'une pièce à deux faces latérales (7, 8) munies chacune d'un orifice (9, 10) dans lesquels viennent s'insérer les bras (1, 2) de la biellette. Ces orifices (9, 10) se situent à un niveau des parois latérales (7, 8) comportant un décalage latéral vers l'extérieur (11, 12) apparaissant plus particulièrement en figures 3 et 4. Les extrémités arrondies (13, 14) desdits bras (1, 2) comportent quant à elles un décalage vers l'intérieur, par exemple obtenu par frappage.The trigger (6) appears in figure 2 . It is a part with two lateral faces (7, 8) each provided with an orifice (9, 10) in which are inserted the arms (1, 2) of the link. These orifices (9, 10) are located at a lateral walls (7, 8) having an outward lateral shift (11, 12) which is more particularly Figures 3 and 4 . The rounded ends (13, 14) of said arms (1, 2) comprise an inward shift, for example obtained by striking.

La forme des orifices (9, 10) apparaît plus clairement en figure 5. La première portion (15) de l'orifice (9), située dans la partie non décalée de la paroi (7), permet l'insertion de l'extrémité arrondie (13) du bras (1) de la genouillère. La seconde partie (16) dudit orifice (9), située dans la portion décalée (placée au-dessus du décalage (11) de la paroi (7)) présente une forme arrondie pouvant loger ladite extrémité (13) du bras (1), et elle est munie d'un fond vers l'extérieur complétant ledit logement. En d'autres termes, ce logement constitué dans la deuxième portion (16) de l'orifice (9) s'ouvre vers l'intérieur de la paroi (7), et loge l'extrémité (13) décalée vers l'extérieur (voir figure 1) du bras (1), empêchant ainsi tout mouvement latéral vers l'extérieur de ce dernier.The shape of the orifices (9, 10) appears more clearly in figure 5 . The first portion (15) of the orifice (9), located in the non-shifted portion of the wall (7), allows the insertion of the rounded end (13) of the arm (1) of the toggle joint. The second portion (16) of said orifice (9), located in the offset portion (placed above the offset (11) of the wall (7)) has a rounded shape that can accommodate said end (13) of the arm (1) and it is provided with a bottom outward supplementing said housing. In other words, this housing formed in the second portion (16) of the orifice (9) opens towards the inside of the wall (7), and houses the end (13) offset outwards. (see figure 1 ) of the arm (1), thus preventing any lateral movement towards the outside of the latter.

Une came (17) permet de guider l'extrémité (13) du bras (1) de la première portion (15) de l'orifice (9) par laquelle il y est inséré vers la seconde portion (16), dans laquelle il est logé à demeure après insertion. Cette came (17) retient par ailleurs l'extrémité (13) dans la seconde portion (16) de l'orifice (9), empêchant le trajet inverse du chemin d'insertion de la genouillère dans le déclencheur (6).A cam (17) guides the end (13) of the arm (1) of the first portion (15) of the orifice (9) through which it is inserted to the second portion (16), in which it is housed permanently after insertion. This cam (17) also retains the end (13) in the second portion (16) of the orifice (9), preventing the reverse path of the insertion path of the toggle in the trigger (6).

La came (17) se trouve dans la première portion (15) de l'orifice (9), c'est-à-dire celle qui se situe dans la paroi latérale du déclencheur (6) qui n'est pas décalée vers l'extérieur. Grâce à la forme particulière de l'orifice (9), et du double décalage inversé des extrémités arrondies (13, 14) des bras (1, 2) d'une part (voir figure 1) et des parties supérieures des parois latérales (7, 8) du déclencheur (6) d'autre part, l'articulation joue pleinement son rôle en laissant un degré de liberté de pivotement aux deux pièces et en résistant aux chocs éventuels.The cam (17) is in the first portion (15) of the orifice (9), that is to say that which is located in the side wall of the trigger (6) which is not shifted towards the 'outside. Thanks to the particular shape of the orifice (9), and the inverted double offset of the rounded ends (13, 14) of the arms (1, 2) on the one hand (see figure 1 ) and the upper parts of the side walls (7, 8) of the trigger (6) on the other hand, the joint plays its role fully by leaving a degree of freedom of pivoting to both parts and resisting any shocks.

En référence à la figure 5, il est à noter qu'un levier en U inversé (18) solidaire de la manette de commande (19) coopère avec des excroissances arrondies (20) du déclencheur (6) par le biais de surfaces incurvées (21) dudit levier (18) pour faciliter la transmission du mouvement de la manette (19) à la genouillère via le déclencheur (6) à l'encontre des puissants moyens de rappel utilisés dans ce type de produit.With reference to the figure 5 , it should be noted that an inverted U-lever (18) integral with the control lever (19) cooperates with rounded protrusions (20) of the release (6) through curved surfaces (21) of said lever (18). ) to facilitate the transmission of the movement of the lever (19) to the toggle via the trigger (6) against the powerful return means used in this type of product.

L'exemple de réalisation illustré aux figures précédentes n'est bien entendu pas exhaustif de l'invention, qui peut comporter des variantes, par exemple un décalage des extrémités arrondies (13, 14) des bras (1, 2) vers l'extérieur, combiné à des décalages (11, 12) des parois latérales (7, 8) du déclencheur (6) vers l'intérieur.The exemplary embodiment illustrated in the preceding figures is of course not exhaustive of the invention, which may comprise variants, for example for example, an offset of the rounded ends (13, 14) of the arms (1, 2) outwards, combined with offsets (11, 12) of the lateral walls (7, 8) of the release (6) towards the inside.

Claims (5)

  1. Joint mechanism for the mechanical tripping mechanism of electrical line cutting equipment of the circuit breaker type, having at least one mobile contact capable of moving between two positions respectively in and out of contact with a fixed contact corresponding respectively to the closing and the opening of the line, the said tripping mechanism being operated by a control lever (19) for the contact movable between its two positions and including a toggle connecting the said lever (19) to the movable contact(s), a means of returning the toggle to the open position, a trip lever (6) pivoting in relation to the toggle by means of the joint mechanism and capable of making it trip in the open position, characterized in that the trip lever (6) contains two orifices (9, 10) facing each other in the side walls (7, 8) of the trip lever (6) perpendicular to the pivot axis and forming bearings allowing a pivoting connection for two parallel arms (1, 2) of a first component of the toggle, the said orifices (9, 10) being located in a lateral offset (11, 12) respectively towards the outside and the inside of each wall (7, 8), forming a slot running perpendicular to the walls for the passage of the said arms (1, 2) extending into a first section of the opening (15) made in the non-offset part of the walls (7, 8) and allowing the insertion of the ends of the said arms (1, 2), as well as extending into a second section of the opening (16) in the offset part, comprising a base to form a housing opening respectively towards the interior and the exterior of the walls (7, 8), the periphery of that housing being rounded and able to guide the rotation of the rounded ends (13, 14) of the arms (1, 2) of the toggle.
  2. Joint mechanism for the mechanical tripping mechanism of electrical line cutting equipment according to the previous claim, characterized in that the plane of the rounded ends (13, 14) is located, in the extension of each arm, (1, 2), laterally off-set towards the opposing arm.
  3. Joint mechanism for the mechanical tripping mechanism of electrical line cutting equipment according to one of the previous claims, characterized in that the two sections (15, 16) of each orifice (9, 10) are separated by a cam (17) guiding the ends (13, 14) of the arms (1, 2) of the toggle from the first (15) towards the second section (16) of each orifice (9, 10), the said cam (17) being located in such a manner that it blocks each of these ends (13, 14) in its housing when it is inserted.
  4. Joint mechanism for the mechanical tripping mechanism of electrical line cutting equipment according to the previous claim, characterized by the fact that the said cam (17) includes in the vicinity of the first section (15) of the orifice (9, 10) a rounded ramp shaped first section, followed by a head that forms a stop blocking the ends (13, 14) of the arms (1, 2) in their housing.
  5. Joint mechanism for the mechanical tripping mechanism of electrical line cutting equipment according to any of the previous claims, characterized in that the base of the second section (16) of each orifice (9, 10) and the offset of the ends (13, 14) of the arms (1, 2) of the toggle are manufactured by stamping.
EP09797098A 2008-11-28 2009-11-26 Pivot mechanism for a lock to trip a circuit breaker-type electrical apparatus for cutting off electrical lines Active EP2351061B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0858074A FR2939238B1 (en) 2008-11-28 2008-11-28 JOINT MECHANISM FOR ELECTRIC CLAMP OF LINE BREAKER TYPE OF CIRCUIT BREAKER TYPE.
PCT/FR2009/052310 WO2010061141A1 (en) 2008-11-28 2009-11-26 Pivot mechanism for a lock to trip a circuit breaker-type electrical apparatus for cutting off electrical lines

Publications (2)

Publication Number Publication Date
EP2351061A1 EP2351061A1 (en) 2011-08-03
EP2351061B1 true EP2351061B1 (en) 2012-10-31

Family

ID=40823354

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09797098A Active EP2351061B1 (en) 2008-11-28 2009-11-26 Pivot mechanism for a lock to trip a circuit breaker-type electrical apparatus for cutting off electrical lines

Country Status (6)

Country Link
EP (1) EP2351061B1 (en)
JP (1) JP5581327B2 (en)
CN (1) CN102227798B (en)
BR (1) BRPI0914374A2 (en)
FR (1) FR2939238B1 (en)
WO (1) WO2010061141A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10449685B2 (en) 2010-04-29 2019-10-22 Whirlpool Corporation Food processor with adjustable blade assembly
US8720325B2 (en) 2010-04-29 2014-05-13 Whirlpool Corporation Food processor with a lockable adjustable blade assembly
US9808774B2 (en) 2013-03-01 2017-11-07 Whirlpool Corporation Stirring wand
US10085599B2 (en) 2014-12-19 2018-10-02 Whirlpool Corporation Multi-cook and food processing prep product
USD853782S1 (en) 2017-02-20 2019-07-16 Whirlpool Corporation Food processor

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2936351A (en) * 1958-04-16 1960-05-10 Ite Circuit Breaker Ltd Automatic resetting mechanism
US3152232A (en) * 1960-02-29 1964-10-06 Ite Circuit Breaker Ltd Circuit breaker having bimetal rigidly secured to cradle
US4056797A (en) * 1976-07-06 1977-11-01 I-T-E Imperial Corporation Cradle for contact operating means
DE4227213C2 (en) * 1992-08-17 1995-08-31 Kloeckner Moeller Gmbh Switch lock for a circuit breaker
DE4442417C1 (en) * 1994-11-29 1996-02-15 Kloeckner Moeller Gmbh Toggle action mechanism for use with LV electrical power switch
US5918732A (en) * 1994-11-29 1999-07-06 Klockner-Moeller Gmbh Power circuit breaker with a breaker mechanism and a breaker mechanism for a power circuit breaker with a lock for a low-voltage switch
JP4857881B2 (en) * 2006-04-14 2012-01-18 富士電機機器制御株式会社 Circuit breaker

Also Published As

Publication number Publication date
JP5581327B2 (en) 2014-08-27
JP2012510699A (en) 2012-05-10
CN102227798B (en) 2014-01-08
BRPI0914374A2 (en) 2016-09-27
WO2010061141A1 (en) 2010-06-03
FR2939238A1 (en) 2010-06-04
CN102227798A (en) 2011-10-26
EP2351061A1 (en) 2011-08-03
FR2939238B1 (en) 2011-01-14

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