EP0448481A1 - Operating mechanism for a switch with three positions - Google Patents

Operating mechanism for a switch with three positions Download PDF

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Publication number
EP0448481A1
EP0448481A1 EP91420083A EP91420083A EP0448481A1 EP 0448481 A1 EP0448481 A1 EP 0448481A1 EP 91420083 A EP91420083 A EP 91420083A EP 91420083 A EP91420083 A EP 91420083A EP 0448481 A1 EP0448481 A1 EP 0448481A1
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EP
European Patent Office
Prior art keywords
shaft
spring
switch
plate
control
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
EP91420083A
Other languages
German (de)
French (fr)
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EP0448481B1 (en
Inventor
Patrick Bonnardel
Jacques Vernay
Hugues Filiputti
Thierry Humbert
Marcel Rigaud
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
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Publication date
Application filed by Merlin Gerin SA, Schneider Electric SE filed Critical Merlin Gerin SA
Publication of EP0448481A1 publication Critical patent/EP0448481A1/en
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Publication of EP0448481B1 publication Critical patent/EP0448481B1/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
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
    • H01H3/30—Power arrangements internal to the switch for operating the driving mechanism using spring motor
    • H01H3/3047—Power arrangements internal to the switch for operating the driving mechanism using spring motor adapted for operation of a three-position switch, e.g. on-off-earth
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
    • H01H3/30—Power arrangements internal to the switch for operating the driving mechanism using spring motor
    • H01H2003/3068—Housing support frame for energy accumulator and cooperating mechanism

Definitions

  • the invention relates to a control mechanism of an electric switch with a main shaft carrying or actuating contacts and capable of being selectively brought into three stable positions, a central opening position and on either side of this central position, respectively a position for closing the switch and a position for closing the earth, said main shaft being connected by lever levers, on the one hand to a first control device for closing and opening of the switch and on the other hand to a second device for controlling the closing and opening of the earthing.
  • a known control mechanism of the kind mentioned comprises two independent control devices, one for closing and opening the switch and the other for closing and opening the earthing.
  • Each of these Tumbler-type devices has a spring and interlocking systems prohibit any false operation, in particular a closing of the earthing when the switch is closed.
  • These devices are complicated and of uncertain reliability.
  • the invention aims to allow the realization of a simplified control mechanism with self-locking incorporated and abrupt operation.
  • the control mechanism according to the invention is characterized in that said first and second control devices cooperate with a spring imposing abrupt maneuvers of said main shaft and that said toggle levers transmit to the main shaft an increasing torque from said central position towards the closed positions of the switch and the earthing to come in these latter positions to the neutral position of stable locking of the main shaft.
  • the mechanism can control a three-pole switch of the type described in patent EP No. 270,389, in which the main shaft carries three contact bridges which cooperate with fixed contacts distributed over the periphery of the switch enclosure.
  • the central position of the main shaft corresponds to the opening of the switch which can be closed by a rotation of this main shaft in a predetermined direction. Reverse rotation of the main shaft from the switch open position corresponds to grounding, in a manner well known to specialists.
  • the closing and opening operation of the switch is controlled by an alternating rotation of the first control shaft, in particular by a control lever, while the closing and opening operation of the setting device to the earth is controlled by the second shaft, in particular by means of a control lever.
  • the rotation of the control shaft causes the spring to be cocked, which suddenly moves the main shaft as soon as it crosses neutral to carry out an abrupt maneuver.
  • Each control shaft carries a plate with an eccentric crank pin and the spring is interposed between the two crank pins to selectively drive the plate as soon as it crosses neutral.
  • the connection between the control shaft and the plate includes a light to allow a dead uncoupling stroke of the plate from the control shaft during the sudden movement phase generated by the relaxation of the spring.
  • the main shaft carries a crank, the end of which is connected by two connecting rods to sectors mounted coaxially in rotation on the two control shafts. Each sector cooperates with the associated plate by a dead-stroke link allowing positive drive of the sector by the plate during the rebound stroke of the spring.
  • the rod or articulated lever constitutes with the associated sector a toggle joint whose levers are substantially perpendicular in the open position of the switch, these levers coming in neutral position in the closed position ensuring positive locking of the main shaft. .
  • the rotation of the sector in the closing direction is limited by a stop.
  • the crank constitutes with each connecting rod a toggle joint, the assembly being arranged in such a way that in the closed position, for example of the switch, any action exerted on the earthing control shaft tends to accentuate the closing of the switch and vice versa.
  • each plate In the open position of the switch, each plate cooperates with a stop for limiting the rotation under the action of the spring.
  • the plates carry control cams for locking levers arranged to lock the main shaft in the open position during the arming phase of the spring.
  • the mechanism includes an additional security constituted by an interlocking beam preventing the operation of the earthing when the switch is closed and vice versa. This interlocking flail cooperates with the control shafts for example by preventing the positioning of the operating lever.
  • the mechanism can be motorized by coupling to the control shaft of the switch a motor with alternating direction of rotation, this motorization being favored by dead strokes allowing a gradual stop of the motor after the arming phase of the spring.
  • a main shaft 10 is rotatably mounted between two flanges 11, 12 secured by spacers 13.
  • the main shaft 10 can be coupled or constitute the contact-carrying shaft of a three-position switch, for example of the type described in European Patent No. 270,389.
  • the main shaft 10 can occupy three distinct stable positions, in this case a central position C1 corresponding to the open position and on either side a position C2 for closing the switch and a position C3 for earthing .
  • Positions C2 and C3 are symmetrical to C1 with an angular deviation of 60 ° but other values can be used.
  • the main shaft 10 is mechanically connected on the one hand to a control device 14 for closing and opening the switch and on the other hand to a control device 15 for closing and opening the setting Earth.
  • the control device 14 of the switch comprises a control shaft 16 on which are rotatably mounted a driver 17, a pair of plates 18 and a sector 19.
  • the earthing control device 15 comprises a control shaft 20 on which are rotatably mounted a driver 21, a pair of plates 22 and a sector 23.
  • An eccentric crank pin 24 is interposed and secured to the pair of plates 18 controlling the switch while a eccentric pin 25 is interposed and secured to the pair of plates 22 of the earthing control.
  • the driver 17 of the switch control device carries at its free end a coupler 28 of an operating lever (not shown) and at its end adjacent to the plate 18 two drive fingers 29.30 which frame with play an axis 31 carried by the pair of plates 18.
  • the opposite end of the axis 31 is engaged in a circular lumen 62 formed in the sector 19.
  • the sector 19 is mechanically connected to a crank 32, keyed onto the main shaft 10, by a lever 33 articulated to the crank 32 by a toggle 34 and articulated to the sector 19 by a toggle 35. It is easy to see that a rotation of the trainer 17 causes the displacement with play of the axis 31 and associated plates 18 as well as a rotation of the sector 19 transmitted by the articulated lever 33 to the crank 32 and to the main shaft 10.
  • the driver 21 of the earthing device 15 carries at its free end a coupler 36 of an operating lever (not shown).
  • the opposite end of the driver 21 carries two stops 37,38 framing with play an axis 39 carried by the pair of plates 22.
  • the opposite end of the shaft 39 is interposed with play between two abutment surfaces 40,41 carried by the sector 23.
  • the sector 23 is mechanically connected to the crank 32 by an articulated lever 42 of which one of the ends is connected to the toggle 34 of the crank 32 and of which the other end is articulated to the toggle 43 of the sector 23.
  • the rotation of the driver 21 causes the displacement of the axis 39 with the plates 22 and that of the sector 23 whose rotation is transmitted by the lever 42 to the crank 32 and to the main shaft 10.
  • the spring 27 biases the pair of plates 18 anticlockwise in support of a fixed stop 44.
  • the line of action of the spring 27 is substantially perpendicular to the radius of the plate 18 passing through the crank pin 24.
  • the spring 27 similarly urges the pair of plates 22 of the earthing device in an anti-clockwise direction keeping the axis 39 in abutment against a fixed stop 45.
  • the axis 31 at the bottom of light 62 prevents any rotation of the sector 19 in a clockwise direction and therefore any rotation of the crank 32 and of the main shaft anticlockwise.
  • the sector 23 in abutment against the axis 39 is prevented from turning in the clockwise direction and thereby hinders any rotation of the crank 32 and of the main shaft 10 in the clockwise direction .
  • the finger 30 of the coach 17 cooperates with a fixed stop 46 while the rotation of the coach 21 is limited by a lug 47 cooperating with two fixed stops 48, 49.
  • the crank pin 24 of the crank 32 cooperates with a locking device constituted by a first lever 50 pivoting on a fixed axis 51, one of the ends of which carries a roller 52 cooperating with the external surface of the plate 18 arranged in cam 53 and of which the opposite end carries an abutment surface 54 preventing rotation of the crank 32 anti-clockwise.
  • the crank pin 24 cooperates with a second locking lever 55 pivoting on a fixed axis 56 and one of the ends of the second lever 55 carries a roller 57 engaged by the external surface of the plate 22 arranged in cam 58.
  • the opposite end of the lever 55 carries an abutment surface 59 preventing, in the locked position, rotation in the clockwise direction of the crank 32.
  • the operating lever is coupled to the driver 17 of the control shaft 16 of the switch.
  • a rotation of the operating lever and the driver 17 clockwise causes the axis to move 31 and a clockwise rotation of the pair of plates 18 causing compression of the spring 27 during the arming phase of the latter shown in FIG. 3.
  • the axis 31 moves in the light 62 without moving the sector 19, the crank 32 remaining in the central position while being locked by the abutment surfaces 54, 59 framing the crank pin 24 in the position C1.
  • the levers articulated by the toggle joint 35 in this case the radius of the sector 19 passing through the toggle joint 35 and the articulated lever 33, pass from a position almost perpendicular to an alignment position shown in the figure. 4.
  • the pivoting of the sector 19 is further limited by a stop 60.
  • the torque transmitted to the crank 32 increases with the pivoting towards the closed position of the switch.
  • the articulated lever 42 of the earthing device pivots slightly and transmits to the associated sector 23 a limited displacement due to the relative positions of the sector 23 and of the articulated lever 42. This limited displacement is compensated by the play between the abutment surfaces 40, 41 and the axis 39.
  • the earthing device 15 is not otherwise affected by the closing operation of the switch.
  • a rotation of the driver 21 anti-clockwise causes the axis 39 to be driven by the abutment surface 37 and an arming of the spring 27 by rotation anti-clockwise of the pair of plates 22.
  • the spring 27 abruptly rotates the pair of plates 22 and the sector 23 anticlockwise returning the crank 32 to its open position.
  • the locking device returns to the original frame position of the crankpin 34, avoiding any rebounding in the manner indicated above.
  • the stops 46,48,49 limit the movements of the coaches 17,21 in order to avoid any false maneuvers.
  • the opening and closing control of the switch can be automated by coupling to the driver 17 an electric motor, for example capable of moving in rotation in one direction or the other the driver 17. It is easy to see than the action of the motor stops at the end of the arming phase of the spring 27 during the closing stroke shown in FIG. 3 and that after interruption of the supply of the motor at this time, the latter can continue by inertia its rotation without catching the axis 31 suddenly moved by the spring 27. In the same way during an opening stroke the motor turns in the opposite direction and brings the spring 27 into the armed position before being stopped by interrupting the power supply while continuing its inertial movement without hampering the opening movement.
  • an electric motor for example capable of moving in rotation in one direction or the other the driver 17. It is easy to see than the action of the motor stops at the end of the arming phase of the spring 27 during the closing stroke shown in FIG. 3 and that after interruption of the supply of the motor at this time, the latter can continue by inertia its rotation without catching the axis 31 suddenly moved by the spring 27
  • the invention is of course in no way limited to the particularly described embodiment, but it extends to any variant embodiment, in particular to that in which the abutment surfaces 40, 41 are replaced by a light analogous to light 62 Conversely, the light could be replaced by abutment surfaces and the control shaft could be secured to the driver or to one of the other parts mounted to rotate on this shaft.

Landscapes

  • Mechanisms For Operating Contacts (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Lock And Its Accessories (AREA)

Abstract

A mechanism for operating a three-position switch having a main contact-carrier shaft (10) includes a control device (14) for closing and opening the switch, and a control device (15) for earthing. The two devices include drive-plates connected by a common spring (27) capable of being armed by the rotation of any one of the control shafts and of transmitting, after crossing the dead point, a motive motion for driving these plates, transmitted by levers hinged to a crank (32) fastened onto the main shaft (10). All the operations are abrupt and the torque transmitted to the main shaft increases during the operating motion. A locking device keeps the main shaft in the open position during the spring-arming phase. …<IMAGE>…

Description

L'invention est relative à un mécanisme de commande d'un interrupteur électrique à arbre principal portant ou actionnant des contacts et susceptible d'être sélectivement amené en trois positions stables, une position centrale d'ouverture et de part et d'autre de cette position centrale, respectivement une position de fermeture de l'interrupteur et une position de fermeture de la mise à la terre, ledit arbre principal étant relié par des leviers à genouillères, d'une part à un premier dispositif de commande de fermeture et d'ouverture de l'interrupteur et d'autre part à un deuxième dispositif de commande de fermeture et d'ouverture de la mise à la terre.The invention relates to a control mechanism of an electric switch with a main shaft carrying or actuating contacts and capable of being selectively brought into three stable positions, a central opening position and on either side of this central position, respectively a position for closing the switch and a position for closing the earth, said main shaft being connected by lever levers, on the one hand to a first control device for closing and opening of the switch and on the other hand to a second device for controlling the closing and opening of the earthing.

Un mécanisme de commande connu du genre mentionné comporte deux dispositifs de commande indépendants, l'un de fermeture et d'ouverture de l'interrupteur et l'autre de fermeture et d'ouverture de la mise à la terre. Chacun de ces dispositifs du genre Tumbler dispose d'un ressort et des systèmes d'inter-verrouillage interdisent toute fausse manoeuvre, notamment une fermeture de la mise à la terre lorsque l'interrupteur est fermé. Ces dispositifs sont compliqués et d'une fiabilité incertaine.A known control mechanism of the kind mentioned comprises two independent control devices, one for closing and opening the switch and the other for closing and opening the earthing. Each of these Tumbler-type devices has a spring and interlocking systems prohibit any false operation, in particular a closing of the earthing when the switch is closed. These devices are complicated and of uncertain reliability.

L'invention à pour but de permettre la réalisation d'un mécanisme de commande simplifié à autoverrouillage incorporé et à manoeuvre brusque.The invention aims to allow the realization of a simplified control mechanism with self-locking incorporated and abrupt operation.

Le mécanisme de commande selon l'invention est caractérisé en ce que lesdits premier et deuxième dispositifs de commande coopèrent avec un ressort imposant des manoeuvres brusques dudit arbre principal et que lesdits leviers à genouillères transmettent à l'arbre principal un couple croissant à partir de ladite position centrale vers les positions de fermeture de l'interrupteur et de la mise à la terre pour venir en ces dernières positions au point mort de verrouillage stable de l'arbre principal.The control mechanism according to the invention is characterized in that said first and second control devices cooperate with a spring imposing abrupt maneuvers of said main shaft and that said toggle levers transmit to the main shaft an increasing torque from said central position towards the closed positions of the switch and the earthing to come in these latter positions to the neutral position of stable locking of the main shaft.

Le mécanisme peut commander un interrupteur tripolaire du type décrit dans le brevet EP No. 270.389, dans lequel l'arbre principal porte trois ponts de contact qui coopèrent avec des contacts fixes répartis sur la périphérie de l'enveloppe de l'interrupteur. La position centrale de l'arbre principal correspond à l'ouverture de l'interrupteur qui peut être fermé par une rotation de cet arbre principal dans un sens prédéterminé. Une rotation inverse de l'arbre principal à partir de la position d'ouverture de l'interrupteur correspond à la mise à la terre, d'une manière bien connue des spécialistes. Selon la présente invention, la manoeuvre de fermeture et d'ouverture de l'interrupteur est commandée par une rotation alternée du premier arbre de commande, notamment par un levier de commande, tandis que la manoeuvre de fermeture et d'ouverture du dispositif de mise à la terre est commandée par le deuxième arbre, notamment au moyen d'un levier de commande. La rotation de l'arbre de commande provoque l'armement du ressort, lequel déplace brusquement l'arbre principal dès le franchissement du point mort pour réaliser une manoeuvre brusque. Chaque arbre de commande porte un plateau avec un maneton excentré et le ressort est intercalé entre les deux manetons pour réaliser sélectivement l'entraînement du plateau dès le franchissement du point mort. La liaison entre l'arbre de commande et le plateau comporte une lumière pour permettre une course morte de désaccouplement du plateau de l'arbre de commande pendant la phase de mouvement brusque engendrée par la détente du ressort. L'arbre principal porte une manivelle dont l'extrémité est reliée par deux bielles à des secteurs montés coaxialement à rotation sur les deux arbres de commande. Chaque secteur coopère avec le plateau associé par une liaison à course morte permettant un entraînement positif du secteur par le plateau pendant la course de détente du ressort. La bielle ou levier articulé constitue avec le secteur associé une genouillière dont les leviers sont sensiblement perpendiculaires en position d'ouverture de l'interrupteur, ces leviers venant en position de point mort dans la position de fermeture assurant un verrouillage positif de l'arbre principal. La rotation du secteur dans le sens de fermeture est limitée par une butée. La manivelle constitue avec chaque bielle une genouillère, l'ensemble étant agencé de telle manière que dans la position de fermeture par exemple de l'interrupteur, toute action exercée sur l'arbre de commande de mise à la terre tend à accentuer la fermeture de l'interrupteur et réciproquement. Dans la position d'ouverture de l'interrupteur chaque plateau coopère avec une butée de limitation de la rotation sous l'action du ressort. Les plateaux portent des cames de commande de leviers de verrouillage agencés pour verrouiller l'arbre principal en position d'ouverture pendant la phase d'armement du ressort. En fin de course d'armement du ressort la came correspondante actionne le levier de verrouillage de manière à autoriser une rotation de l'arbre principal dans la direction imposée par le ressort après le franchissement du point mort. Ce dispositif de verrouillage empêche toute rotation imtempestive de l'arbre principal pendant les phases d'armement. Ce dispositif de verrouillage empêche également tout rebondissement lors de l'ouverture de l'interrupteur. Le mécanisme comporte une sécurité additionnelle constituée par un fléau d'inter-verrouillage interdisant la manoeuvre de la mise à la terre lorsque l'interrupteur est fermé et inversement. Ce fléau d'inter-verrouillage coopère avec les arbres de commande par exemple en empêchant la mise en place du levier de manoeuvre. Le mécanisme peut être motorisé en accouplant à l'arbre de commande de l'interrupteur un moteur à sens de rotation alterné, cette motorisation étant favorisée par des courses mortes autorisant un arrêt progressif du moteur après la phase d'armement du ressort.The mechanism can control a three-pole switch of the type described in patent EP No. 270,389, in which the main shaft carries three contact bridges which cooperate with fixed contacts distributed over the periphery of the switch enclosure. The central position of the main shaft corresponds to the opening of the switch which can be closed by a rotation of this main shaft in a predetermined direction. Reverse rotation of the main shaft from the switch open position corresponds to grounding, in a manner well known to specialists. According to the present invention, the closing and opening operation of the switch is controlled by an alternating rotation of the first control shaft, in particular by a control lever, while the closing and opening operation of the setting device to the earth is controlled by the second shaft, in particular by means of a control lever. The rotation of the control shaft causes the spring to be cocked, which suddenly moves the main shaft as soon as it crosses neutral to carry out an abrupt maneuver. Each control shaft carries a plate with an eccentric crank pin and the spring is interposed between the two crank pins to selectively drive the plate as soon as it crosses neutral. The connection between the control shaft and the plate includes a light to allow a dead uncoupling stroke of the plate from the control shaft during the sudden movement phase generated by the relaxation of the spring. The main shaft carries a crank, the end of which is connected by two connecting rods to sectors mounted coaxially in rotation on the two control shafts. Each sector cooperates with the associated plate by a dead-stroke link allowing positive drive of the sector by the plate during the rebound stroke of the spring. The rod or articulated lever constitutes with the associated sector a toggle joint whose levers are substantially perpendicular in the open position of the switch, these levers coming in neutral position in the closed position ensuring positive locking of the main shaft. . The rotation of the sector in the closing direction is limited by a stop. The crank constitutes with each connecting rod a toggle joint, the assembly being arranged in such a way that in the closed position, for example of the switch, any action exerted on the earthing control shaft tends to accentuate the closing of the switch and vice versa. In the open position of the switch, each plate cooperates with a stop for limiting the rotation under the action of the spring. The plates carry control cams for locking levers arranged to lock the main shaft in the open position during the arming phase of the spring. At the end of the arming stroke of the spring, the corresponding cam actuates the locking lever so as to allow rotation of the main shaft in the direction imposed by the spring after crossing neutral. This locking device prevents any untimely rotation of the main shaft during the arming phases. This locking device also prevents kickback when the switch is opened. The mechanism includes an additional security constituted by an interlocking beam preventing the operation of the earthing when the switch is closed and vice versa. This interlocking flail cooperates with the control shafts for example by preventing the positioning of the operating lever. The mechanism can be motorized by coupling to the control shaft of the switch a motor with alternating direction of rotation, this motorization being favored by dead strokes allowing a gradual stop of the motor after the arming phase of the spring.

D'autres avantages et caractéristiques ressortiront plus clairement de la description qui va suivre d'un mode de mise en oeuvre de l'invention donné à titre d'exemple non limitatif et représenté aux dessins annexés dans lesquels:

  • la figure 1 est une vue schématique en perspective d'un mécanisme selon l'invention, le flasque avant étant représenté par son contour en traîts discontinus et l'interrupteur étant en position ouvert;
  • la figure 2 est une vue éclatée du mécanisme selon la figure 1 montrant les positions respectives des différents composants;
  • les figures 3, 4, 5, et 6 sont des vues analogues à celles de la figure 2 montrant le mécanisme respectivement en cours d'armement du ressort pour la fermeture de l'interrupteur; en position fermé de l'interrupteur; en cours d'armement du ressort pour la mise à la terre; la position de mise à la terre.
Other advantages and characteristics will emerge more clearly from the description which follows of an embodiment of the invention given by way of nonlimiting example and represented in the appended drawings in which:
  • Figure 1 is a schematic perspective view of a mechanism according to the invention, the front flange being shown by its contour in discontinuous lines and the switch being in the open position;
  • Figure 2 is an exploded view of the mechanism according to Figure 1 showing the respective positions of the various components;
  • Figures 3, 4, 5, and 6 are views similar to those of Figure 2 showing the mechanism respectively during arming of the spring for closing the switch; in the closed position of the switch; during arming of the spring for earthing; the grounding position.

Sur les figures un arbre principal 10 est monté à rotation entre deux flasques 11,12 solidarisés par des entretoises 13. L'arbre principal 10 peut être accouplé ou constituer l'arbre porte contact d'un interrupteur à trois positions par exemple du type décrit dans le brevet européen No. 270.389. L'arbre principal 10 peut occuper trois positions distinctes stables, en l'occurrence une position centrale C1 correspondant à la position ouvert et de part et d'autre une position C2 de fermeture de l'interrupteur et une position C3 de mise à la terre. Les positions C2 et C3 sont symétriques de C1 avec un écart angulaire de 60° mais d'autres valeurs sont utilisables. L'arbre principal 10 est relié mécaniquement d'une part à un dispositif de commande 14 de fermeture et d'ouverture de l'interrupteur et d'autre part à un dispositif de commande 15 de fermeture et d'ouverture de la mise à la terre. Le dispositif de commande 14 de l'interrupteur comporte un arbre de commande 16 sur lequel sont montés à rotation un entraîneur 17, une paire de plateaux 18 et un secteur 19. D'une manière analogue le dispositif de commande de mise à la terre 15 comporte un arbre de commande 20 sur lequel sont montés à rotation un entraîneur 21, une paire de plateaux 22 et un secteur 23. Un maneton excentré 24 est intercalé et solidarisé à la paire de plateaux 18 de commande de l'interrupteur tandis qu'un maneton excentré 25 est intercalé et solidarisé à la paire de plateaux 22 de la commande de mise à la terre. Une tige télescopique 26, articulée par ses extrémités aux manetons 24,25, porte un ressort de compression 27 sollicitant les manetons 24,25 en position écarté. L'entraîneur 17 du dispositif de commande de l'interrupteur porte à son extrémité libre un coupleur 28 d'un levier de manoeuvre (non représenté) et à son extrémité adjacente au plateau 18 deux doigts d'entraînement 29,30 qui encadrent avec jeu un axe 31 porté par la paire de plateaux 18. L'extrémité opposée de l'axe 31 est engagée dans une lumière circulaire 62 ménagée dans le secteur 19. Le secteur 19 est relié mécaniquement à une manivelle 32, clavetée sur l'arbre principal 10, par un levier 33 articulé à la manivelle 32 par une genouillère 34 et articulé au secteur 19 par une genouillère 35. Il est facile de voir qu'une rotation de l'entraîneur 17 provoque le déplacement avec jeu de l'axe 31 et des plateaux associés 18 ainsi qu'une rotation du secteur 19 transmise par le levier articulé 33 à la manivelle 32 et à l'arbre principal 10.In the figures, a main shaft 10 is rotatably mounted between two flanges 11, 12 secured by spacers 13. The main shaft 10 can be coupled or constitute the contact-carrying shaft of a three-position switch, for example of the type described in European Patent No. 270,389. The main shaft 10 can occupy three distinct stable positions, in this case a central position C1 corresponding to the open position and on either side a position C2 for closing the switch and a position C3 for earthing . Positions C2 and C3 are symmetrical to C1 with an angular deviation of 60 ° but other values can be used. The main shaft 10 is mechanically connected on the one hand to a control device 14 for closing and opening the switch and on the other hand to a control device 15 for closing and opening the setting Earth. The control device 14 of the switch comprises a control shaft 16 on which are rotatably mounted a driver 17, a pair of plates 18 and a sector 19. Similarly the earthing control device 15 comprises a control shaft 20 on which are rotatably mounted a driver 21, a pair of plates 22 and a sector 23. An eccentric crank pin 24 is interposed and secured to the pair of plates 18 controlling the switch while a eccentric pin 25 is interposed and secured to the pair of plates 22 of the earthing control. A telescopic rod 26, articulated by its ends to the crank pins 24.25, carries a compression spring 27 biasing the crank pins 24.25 in the separated position. The driver 17 of the switch control device carries at its free end a coupler 28 of an operating lever (not shown) and at its end adjacent to the plate 18 two drive fingers 29.30 which frame with play an axis 31 carried by the pair of plates 18. The opposite end of the axis 31 is engaged in a circular lumen 62 formed in the sector 19. The sector 19 is mechanically connected to a crank 32, keyed onto the main shaft 10, by a lever 33 articulated to the crank 32 by a toggle 34 and articulated to the sector 19 by a toggle 35. It is easy to see that a rotation of the trainer 17 causes the displacement with play of the axis 31 and associated plates 18 as well as a rotation of the sector 19 transmitted by the articulated lever 33 to the crank 32 and to the main shaft 10.

D'une manière analogue à celle décrite ci-dessus l'entraîneur 21 du dispositif de mise à la terre 15 porte à son extrémité libre un coupleur 36 d'un levier de manoeuvre (non représenté). L'extrémité opposée de l'entraîneur 21 porte deux butées 37,38 encadrant avec jeu un axe 39 porté par la paire de plateaux 22. L'extrémité opposée de l'axe 39 est intercalée avec jeu entre deux surfaces de butée 40,41 portées par le secteur 23. Le secteur 23 est relié mécaniquement à la manivelle 32 par un levier articulé 42 dont l'une des extrémités est reliée à la genouillère 34 de la manivelle 32 et dont l'autre extrémité est articulée à la genouillère 43 du secteur 23. La rotation de l'entraîneur 21 provoque le déplacement de l'axe 39 avec les plateaux 22 et celui du secteur 23 dont la rotation est transmise par le levier 42 à la manivelle 32 et à l'arbre principal 10.In a manner analogous to that described above, the driver 21 of the earthing device 15 carries at its free end a coupler 36 of an operating lever (not shown). The opposite end of the driver 21 carries two stops 37,38 framing with play an axis 39 carried by the pair of plates 22. The opposite end of the shaft 39 is interposed with play between two abutment surfaces 40,41 carried by the sector 23. The sector 23 is mechanically connected to the crank 32 by an articulated lever 42 of which one of the ends is connected to the toggle 34 of the crank 32 and of which the other end is articulated to the toggle 43 of the sector 23. The rotation of the driver 21 causes the displacement of the axis 39 with the plates 22 and that of the sector 23 whose rotation is transmitted by the lever 42 to the crank 32 and to the main shaft 10.

Dans la position ouvert de l'interrupteur, représentée à la figure 2, le ressort 27 sollicite la paire de plateaux 18 dans le sens inverse des aiguilles d'une montre en appui d'une butée fixe 44. La ligne d'action du ressort 27 est sensiblement perpendiculaire au rayon du plateau 18 passant par le maneton 24.In the open position of the switch, shown in FIG. 2, the spring 27 biases the pair of plates 18 anticlockwise in support of a fixed stop 44. The line of action of the spring 27 is substantially perpendicular to the radius of the plate 18 passing through the crank pin 24.

Le ressort 27 sollicite d'une manière analogue la paire de plateaux 22 du dispositif de mise à la terre dans le sens inverse des aiguilles d'une montre maintenant l'axe 39 en appui contre une butéé fixe 45. L'axe 31 en fond de lumière 62 empêche toute rotation du secteur 19 dans le sens des aiguilles d'une montre et de ce fait toute rotation de la manivelle 32 et de l'arbre principal dans le sens inverse des aiguilles d'une montre. Le secteur 23 en butée contre l'axe 39 est empêché de tourner dans le sens des aiguilles d'une montre et de ce fait entrave toute rotation de la manivelle 32 et de l'arbre principal 10 dans le sens des aiguilles d'une montre. Le doigt 30 de l'entraîneur 17 coopère avec une butée fixe 46 tandis que la rotation de l'entraîneur 21 est limitée par un ergot 47 coopérant avec deux butées fixes 48,49.The spring 27 similarly urges the pair of plates 22 of the earthing device in an anti-clockwise direction keeping the axis 39 in abutment against a fixed stop 45. The axis 31 at the bottom of light 62 prevents any rotation of the sector 19 in a clockwise direction and therefore any rotation of the crank 32 and of the main shaft anticlockwise. The sector 23 in abutment against the axis 39 is prevented from turning in the clockwise direction and thereby hinders any rotation of the crank 32 and of the main shaft 10 in the clockwise direction . The finger 30 of the coach 17 cooperates with a fixed stop 46 while the rotation of the coach 21 is limited by a lug 47 cooperating with two fixed stops 48, 49.

Le maneton 24 de la manivelle 32 coopère avec un dispositif de verrouillage constitué par un premier levier 50 pivotant sur un axe fixe 51, dont l'une des extrémités porte un galet 52 coopérant avec la surface externe du plateau 18 agencé en came 53 et dont l'extrémité opposée porte une surface de butée 54 empêchant la rotation de la manivelle 32 dans le sens inverse des aiguilles d'une montre. Le maneton 24 coopère avec un deuxième levier de verrouillage 55 pivotant sur un axe fixe 56 et l'une des extrémités du deuxième levier 55 porte un galet 57 engagé par la surface externe du plateau 22 agencé en came 58. L'extrémité opposée du levier 55 porte une surface de butée 59 empêchant en position de verrouillage une rotation dans le sens des aiguilles d'une montre de la manivelle 32.The crank pin 24 of the crank 32 cooperates with a locking device constituted by a first lever 50 pivoting on a fixed axis 51, one of the ends of which carries a roller 52 cooperating with the external surface of the plate 18 arranged in cam 53 and of which the opposite end carries an abutment surface 54 preventing rotation of the crank 32 anti-clockwise. The crank pin 24 cooperates with a second locking lever 55 pivoting on a fixed axis 56 and one of the ends of the second lever 55 carries a roller 57 engaged by the external surface of the plate 22 arranged in cam 58. The opposite end of the lever 55 carries an abutment surface 59 preventing, in the locked position, rotation in the clockwise direction of the crank 32.

Le mécanisme fonctionne de la manière suivante :The mechanism works as follows:

Fermeture de l'interrupteur (figure 1 à 4).Closing of the switch (figure 1 to 4).

Le mécanisme étant dans la position ouvert, représentée aux figures 1 et 2, le levier de manoeuvre est accouplé à l'entraîneur 17 de l'arbre de commande 16 de l'interrupteur. Une rotation du levier de manoeuvre et de l'entraîneur 17 dans le sens des aiguilles d'une montre provoque le déplacement de l'axe 31 et une rotation dans le sens des aiguilles d'une montre de la paire de plateaux 18 amenant une compression du ressort 27 pendant la phase d'armement de ce dernier représentée à la figure 3. Pendant cette phase d'armement l'axe 31 se déplace dans la lumière 62 sans déplacer le secteur 19, la manivelle 32 restant en position centrale en étant verrouillée par les surfaces de butée 54,59 encadrant le maneton 24 dans la position C1. En fin de phase d'armement du ressort 27, correspondant à l'alignement de l'arbre 16 et des manetons 24,25, le ressort 27 devient moteur et dès le franchissement du point mort entraîne en rotation brusque la paire de plateaux 18 indépendamment de l'entraîneur 17. Cette rotation brusque de la paire de plateaux 18 est transmise par l'axe 31, qui a atteint le fond de la lumière 62 au secteur 19 dont le pivotement dans le sens des aiguilles d'une montre est transmis par le levier articulé 33 à la manivelle 32 et à l'arbre principal 10 qui pivote dans le sens inverse des aiguilles d'une montre vers la position C2 de fermeture de l'interrupteur, représentée à la figure 4. Ce pivotement a été autorisé par effacement de la surface de butée 54 dû à l'action de la came 53 sur le galet 52 en fin de course d'armement du ressort 27 (figure 3). Pendant la course de fermeture les leviers articulés par la genouillère 35, en l'occurrence le rayon du secteur 19 passant par la genouillère 35 et le levier articulé 33, passent d'une position quasi perpendiculaire à une position d'alignement représentée à la figure 4. Le pivotement du secteur 19 est de plus limité par une butée 60. Le couple transmis à la manivelle 32 augmente avec le pivotement vers la position de fermeture de l'interrupteur. Pendant cette course de fermeture le levier articulé 42 du dispositif de mise à la terre pivote légèrement et transmet au secteur associé 23 un déplacement limité du fait des positions relatives du secteur 23 et du levier articulé 42. Ce déplacement limité est compensé par le jeu entre les surfaces de butée 40,41 et l'axe 39. Le dispositif de mise à la terre 15 n'est autrement pas affecté par la manoeuvre de fermeture de l'interrupteur.The mechanism being in the open position, shown in Figures 1 and 2, the operating lever is coupled to the driver 17 of the control shaft 16 of the switch. A rotation of the operating lever and the driver 17 clockwise causes the axis to move 31 and a clockwise rotation of the pair of plates 18 causing compression of the spring 27 during the arming phase of the latter shown in FIG. 3. During this arming phase the axis 31 moves in the light 62 without moving the sector 19, the crank 32 remaining in the central position while being locked by the abutment surfaces 54, 59 framing the crank pin 24 in the position C1. At the end of the arming phase of the spring 27, corresponding to the alignment of the shaft 16 and of the crankpins 24.25, the spring 27 becomes motor and as soon as it crosses the neutral point causes the pair of plates 18 to rotate suddenly independently of the trainer 17. This sudden rotation of the pair of plates 18 is transmitted by the axis 31, which has reached the bottom of the light 62 to the sector 19 whose pivoting in the clockwise direction is transmitted by the articulated lever 33 to the crank 32 and to the main shaft 10 which pivots anticlockwise towards the position C2 for closing the switch, shown in FIG. 4. This pivoting has been authorized by erasure of the abutment surface 54 due to the action of the cam 53 on the roller 52 at the end of the arming stroke of the spring 27 (FIG. 3). During the closing stroke, the levers articulated by the toggle joint 35, in this case the radius of the sector 19 passing through the toggle joint 35 and the articulated lever 33, pass from a position almost perpendicular to an alignment position shown in the figure. 4. The pivoting of the sector 19 is further limited by a stop 60. The torque transmitted to the crank 32 increases with the pivoting towards the closed position of the switch. During this closing stroke, the articulated lever 42 of the earthing device pivots slightly and transmits to the associated sector 23 a limited displacement due to the relative positions of the sector 23 and of the articulated lever 42. This limited displacement is compensated by the play between the abutment surfaces 40, 41 and the axis 39. The earthing device 15 is not otherwise affected by the closing operation of the switch.

Ouverture de l'interrupteur :Switch opening:

En partant de la position de fermeture représentée à la figure 4 il suffit d'actionner l'entraîneur 17 par le levier de manoeuvre dans le sens inverse des aiguilles d'une montre pour entraîner l'axe 31 par le doigt 29 en provoquant une rotation dans le sens inverse des aiguilles d'une montre de la paire de plateaux 18 vers la position d'armement du ressort 27 représentée à la figure 3. Pendant cette phase d'armement l'axe 31 coulisse dans la lumière 62 sans déplacement du secteur 19. Dès le franchissement du point mort le ressort 27 devient actif et fait tourner le plateau 18 qui entraîne par l'axe 31 le secteur 19 dans le sens inverse des aiguilles d'une montre. Cette rotation est transmise par le levier articulé 33 à la manivelle 32 et à l'arbre principal 10 qui revient à la position illustrée à la figure 2. Dès la fin de la phase d'armement du ressort 27 la came 53 libère le levier de verrouillage 50 qui revient par tout moyen approprié par exemple par un ressort non représenté dans la position de verrouillage pour emprisonner le maneton 34 revenu dans la position d'ouverture. Ce dispositif de verrouillage empêche tout rebondissement à l'ouverture de l'interrupteur.Starting from the closed position shown in FIG. 4, it suffices to actuate the driver 17 by the operating lever anticlockwise to drive the axis 31 by the finger 29 by causing a rotation. anticlockwise from the pair of plates 18 towards the arming position of the spring 27 shown in FIG. 3. During this arming phase the axis 31 slides in the light 62 without displacement of the sector 19. As soon as the neutral point is crossed, the spring 27 becomes active and rotates the plate 18 which drives the sector 19 by the axis 31 in an anticlockwise direction. This rotation is transmitted by the articulated lever 33 to the crank 32 and to the main shaft 10 which returns to the position illustrated in FIG. 2. At the end of the arming phase of the spring 27 the cam 53 releases the lever of locking 50 which returns by any suitable means for example by a spring not shown in the locking position to trap the pin 34 returned to the open position. This locking device prevents any rebound when the switch is opened.

Fermeture de la mise à la terre :Grounding closure:

En partant de la position ouverte représentée à la figure 2 il suffit d'accoupler le levier de manoeuvre à l'entraîneur 21 et de tourner ce dernier dans le sens des aiguilles d'une montre pour déplacer l'axe 39 et la paire de plateaux 22 dans le sens des aiguilles d'une montre (figure 5). Pendant la phase d'armement du ressort 27 l'axe 39 n'agit pas sur le secteur 23, la surface de butée 41 n'étant engagée qu'à la fin de la phase d'armement. Dès le franchissement du point mort le ressort 27 devient moteur et entraîne brusquement la paire de plateaux 22 et par l'intermédiaire de la l'axe 39 en appui sur la surface de butée 41 le secteur 23 dans le sens des aiguilles d'une montre. Cette rotation est transmise par le levier articulé 42 à la manivelle 32 et à l'arbre principal 10 qui pivotent ensemble dans le sens des aiguilles d'une montre vers la position de mise à la terre représentée à la figure 6. Ce pivotement est autorisé par le retrait de la surface de verrouillage 59, intervenu en fin de phase d'armement du ressort 27 par l'action de la came 58 sur le galet 57. Dans la position de fermeture de la mise à la terre les leviers à genouillère 43 sont quasiment alignés et la rotation du secteur 23 est limitée par une butée 61. Cet alignement empêche tout pivotement inverse de la manivelle 32 et il est facile de voir que de la manière décrite ci-dessus le couple transmis à la manivelle 32 est allé en croissant au cours du mouvement de fermeture de la mise à la terre. Le levier articulé 33 a transmis au secteur 19 un mouvement limité autorisé par la lumière 62 les autres composants du dispositif de fermeture de l'interrupteur restant dans leur position originale. Dans la position de mise à la terre représentée à la figure 6 une action sur le secteur 19 du dispositif de commande de l'interrupteur ne peut qu'accentuer la fermeture de la mise à la terre.Starting from the open position shown in Figure 2, simply couple the operating lever to the driver 21 and turn the latter clockwise to move the axis 39 and the pair of plates 22 clockwise (Figure 5). During the arming phase of the spring 27 the axis 39 does not act on the sector 23, the abutment surface 41 being engaged only at the end of the arming phase. As soon as the neutral point is crossed, the spring 27 becomes a motor and abruptly drives the pair of plates 22 and by means of the axis 39 in abutment on the abutment surface 41 the sector 23 in a clockwise direction . This rotation is transmitted by the articulated lever 42 to the crank 32 and to the main shaft 10 which pivot together clockwise towards the earthing position. represented in FIG. 6. This pivoting is authorized by the withdrawal of the locking surface 59, which occurs at the end of the arming phase of the spring 27 by the action of the cam 58 on the roller 57. In the closed position of the earthing the toggle levers 43 are almost aligned and the rotation of the sector 23 is limited by a stop 61. This alignment prevents any reverse pivoting of the crank 32 and it is easy to see that in the manner described above the torque transmitted to the crank 32 increased during the closing movement of the earthing. The articulated lever 33 transmitted to sector 19 a limited movement authorized by light 62, the other components of the switch closing device remaining in their original position. In the earthing position shown in FIG. 6, an action on the sector 19 of the switch control device can only accentuate the closing of the earthing.

Ouverture de la mise à la terre :Grounding opening:

Une rotation de l'entraîneur 21 dans le sens inverse des aiguilles d'une montre provoque l'entraînement de l'axe 39 par la surface de butée 37 et un armement du ressort 27 par rotation dans le sens inverse des aiguilles d'une montre de la paire de plateaux 22. Dès le franchissement du point mort le ressort 27 entraîne brusquement en rotation la paire de plateaux 22 et le secteur 23 dans le sens inverse des aiguilles d'une montre ramenant la manivelle 32 dans sa position ouvert. Le dispositif de verrouillage revient dans la position originale d'encadrement du maneton 34 en évitant de la manière indiquée ci-dessus tout rebondissement. Les butées 46,48,49 limitent les mouvements des entraîneurs 17,21 afin d'éviter toute fausses manoeuvres.A rotation of the driver 21 anti-clockwise causes the axis 39 to be driven by the abutment surface 37 and an arming of the spring 27 by rotation anti-clockwise of the pair of plates 22. As soon as the neutral point is crossed, the spring 27 abruptly rotates the pair of plates 22 and the sector 23 anticlockwise returning the crank 32 to its open position. The locking device returns to the original frame position of the crankpin 34, avoiding any rebounding in the manner indicated above. The stops 46,48,49 limit the movements of the coaches 17,21 in order to avoid any false maneuvers.

La commande d'ouverture et de fermeture de l'interrupteur peut être automatisée en accouplant à l'entraîneur 17 un moteur par exemple électrique capable de déplacer en rotation dans un sens ou dans l'autre l'entraîneur 17. Il est facile de voir que l'action du moteur s'arrête à la fin de la phase d'armement du ressort 27 lors de la course de fermeture représentée à la figure 3 et qu'après interruption de l'alimentation du moteur à ce moment là, celui-ci peut poursuivre par inertie sa rotation sans rattraper l'axe 31 déplacé brusquement par le ressort 27. De la même manière lors d'une course d'ouverture le moteur tourne en sens inverse et amène le ressort 27 en position armée avant d'être arrêté par interruption de l'alimentation tout en poursuivant sa course par inertie sans entraver le mouvement d'ouverture.The opening and closing control of the switch can be automated by coupling to the driver 17 an electric motor, for example capable of moving in rotation in one direction or the other the driver 17. It is easy to see than the action of the motor stops at the end of the arming phase of the spring 27 during the closing stroke shown in FIG. 3 and that after interruption of the supply of the motor at this time, the latter can continue by inertia its rotation without catching the axis 31 suddenly moved by the spring 27. In the same way during an opening stroke the motor turns in the opposite direction and brings the spring 27 into the armed position before being stopped by interrupting the power supply while continuing its inertial movement without hampering the opening movement.

Un inter-verrouillage additionnel est avantageusement réalisé par un fléau empêchant la mise en place simultanée de leviers de manoeuvre sur les arbres 16,20. En allongeant la lumière 62 ou en écartant les surfaces de butées 40,41 il est possible d'obtenir un effet de choc pouvant rompre les forces de soudage ou d'inertie du mécanisme.An additional interlocking is advantageously achieved by a flail preventing the simultaneous installation of operating levers on the shafts 16,20. By lengthening the light 62 or by moving the abutment surfaces 40, 41 it is possible to obtain a shock effect which can break the welding or inertia forces of the mechanism.

L'invention est bien entendu nullement limitée au mode de mise en oeuvre particulièrement décrit, mais elle s'étend à toute variante de réalisation, notamment à celle dans laquelle les surfaces de butée 40,41 seraient remplacées par une lumière analogue à la lumière 62. Inversement la lumière pourrait être remplacée par des surfaces de butée et l'arbre de commande pourrait être solidaire de l'entraîneur ou d'une des autres pièces montées à rotation sur cet arbre.The invention is of course in no way limited to the particularly described embodiment, but it extends to any variant embodiment, in particular to that in which the abutment surfaces 40, 41 are replaced by a light analogous to light 62 Conversely, the light could be replaced by abutment surfaces and the control shaft could be secured to the driver or to one of the other parts mounted to rotate on this shaft.

Claims (9)

Mécanisme de commande d'un interrupteur électrique à arbre principal (10) portant ou actionnant des contacts et susceptible d'être sélectivement amené en trois positions stables (C1,C2,C3), une position centrale (C1) d'ouverture et de part et d'autre de cette position centrale respectivement une position de fermeture de l'interrupteur (C2) et une position de fermeture de la mise à la terre (C3), ledit arbre principal (10) étant relié par des leviers à genouillères (19,33,23,42) d'une part à un premier dispositif de commande (14) de fermeture et d'ouverture de l'interrupteur et d'autre part à un deuxième dispositif de commande (15) de fermeture et d'ouverture de la mise à la terre, caractérisé en ce que lesdits premier (14) et deuxième (15) dispositifs de commande coopèrent avec un ressort (27) imposant des manoeuvres brusques dudit arbre principal (10) et que lesdits leviers à genouillères (19,33,23,42) transmettent à l'arbre principal un couple croissant à partir de ladite position centrale (C1) vers les positions (C2,C3) de fermeture de l'interrupteur et de la mise à la terre pour venir en ces dernières positions au point mort de verrouillage stable de l'arbre principal.Control mechanism of an electrical switch with main shaft (10) carrying or actuating contacts and capable of being selectively brought into three stable positions (C1, C2, C3), a central position (C1) for opening and opening and from this central position, respectively, a position for closing the switch (C2) and a position for closing the earth (C3), said main shaft (10) being connected by toggle levers (19 , 33,23,42) on the one hand to a first control device (14) for closing and opening the switch and on the other hand to a second control device (15) for closing and opening of earthing, characterized in that said first (14) and second (15) control devices cooperate with a spring (27) imposing abrupt maneuvers of said main shaft (10) and that said toggle levers (19, 33,23,42) transmit to the main shaft an increasing torque from r from said central position (C1) to the positions (C2, C3) for closing the switch and for earthing to come to these latter positions at stable locking dead center of the main shaft. Mécanisme selon la revendication 1, caractérisé en ce qu'il comporte un premier arbre (16) de commande de fermeture et d'ouverture de l'interrupteur par une rotation alternée de ce premier arbre et un deuxième arbre (20) de commande de fermeture et d'ouverture de la mise à la terre par une rotation alternée de ce deuxième arbre.Mechanism according to claim 1, characterized in that it comprises a first shaft (16) for closing and opening the switch by alternating rotation of this first shaft and a second shaft (20) for closing control and opening of the grounding by an alternating rotation of this second shaft. Mécanisme selon la revendication 1 ou 2, caractérisé en ce que le premier arbre (16) de commande porte un premier plateau (18) ayant un maneton (24) excentré, que le deuxième arbre (20) de commande porte un deuxième plateau (22) ayant un maneton excentré et que ledit ressort (27) est intercalé entre les deux manetons (24,25).Mechanism according to claim 1 or 2, characterized in that the first control shaft (16) carries a first plate (18) having an eccentric pin (24), that the second control shaft (20) carries a second plate (22 ) having an eccentric crank pin and that said spring (27) is interposed between the two crank pins (24,25). Mécanisme selon la revendication 3, caractérisé en ce qu'au moins l'un desdits arbres (16,22) de commande est relié au plateau associé par un accouplement (29,30,31;37,38,39) à course morte pour la transmission positive au plateau du mouvement d'armement du ressort (27) et pour une détente brusque de ce dernier avec une rotation correspondante du plateau indépendante de l'arbre de commande.Mechanism according to claim 3, characterized in that at least one of said control shafts (16,22) is connected to the associated plate by a dead travel coupling (29,30,31; 37,38,39) for the positive transmission to the plate of the arming movement of the spring (27) and for an abrupt relaxation of the latter with a corresponding rotation of the plate independent of the control shaft. Mécanisme selon la revendication 4, caractérisé en ce que ledit accouplement (22,30,31; 37,38,39) à course morte comporte deux butées encadrant avec jeu un ergot (31,39).Mechanism according to claim 4, characterized in that said coupling (22,30,31; 37,38,39) with dead travel comprises two stops framing with play a lug (31,39). Mecanisme selon l'une quelconque des revendications précédentes, caractérisé en ce que chaque plateau (18,22) associé à un arbre de commande (16,20) présente une butée (44,45) définissant la position détendue du ressort (27) intercalé entre les manetons (24,25) des deux plateaux et que dans ladite position détendue la ligne d'action du ressort est sensiblement perpendiculaire au rayon du plateau passant par le maneton (24,25).Mechanism according to any one of the preceding claims, characterized in that each plate (18,22) associated with a control shaft (16,20) has a stop (44,45) defining the relaxed position of the interposed spring (27) between the crank pins (24,25) of the two plates and that in said relaxed position the line of action of the spring is substantially perpendicular to the radius of the plate passing through the crank pin (24,25). Mécanisme selon l'une quelconque des revendications précédentes, caractérisé en ce que chacun desdits leviers à genouillères comporte un premier (19,23) et un deuxième levier (33,42), ledit premier levier étant constitué par un secteur (19,23) monté à rotation sur l'arbre de commande (16,20) et que la liaison entre le plateau (18,22) et ledit secteur (19,23) associé, présente une course morte (31,62; 39,40,41) de désacouplement du secteur (19,23) pendant la course du plateau correspondant à l'armement du ressort (27) et d'accouplement positif pendant la course de détente du ressort pour entraîner le secteur (19,23) et l'arbre principal (10) porte-contacts.Mechanism according to any one of the preceding claims, characterized in that each of said toggle levers comprises a first (19,23) and a second lever (33,42), said first lever being constituted by a sector (19,23) rotatably mounted on the control shaft (16,20) and that the connection between the plate (18,22) and said associated sector (19,23) has a dead travel (31,62; 39,40,41 ) of uncoupling of the sector (19,23) during the stroke of the plate corresponding to the arming of the spring (27) and of positive coupling during the rebound stroke of the spring to drive the sector (19,23) and the shaft main (10) contact carrier. Mécanisme selon la revendication 7 caractérisé en ce que ledit arbre principal (10) porte une manivelle (32) à l'extrémité (34) de laquelle sont articulées les deuxièmes leviers (33,42) desdits leviers à genouillères (19,33,23,42), que chaque secteur (19,23) coopère avec une butée (60,61) de fin de course définissant les positions de fermeture (C2,C3) respectivement de l'interrupteur et de la mise à la terre et que dans lesdites positions de fermeture la genouillère constituée par la manivelle et le deuxième levier correspondant (33,42) est en position de dépassement du point mort pour constituer un autoverrouillage.Mechanism according to claim 7 characterized in that said main shaft (10) carries a crank (32) at the end (34) of which are articulated the second levers (33,42) of said toggle levers (19,33,23 , 42), that each sector (19,23) cooperates with an end stop (60,61) defining the closed positions (C2, C3) of the switch and the earth respectively and that in said closed positions the toggle constituted by the crank and the second corresponding lever (33,42) is in position beyond the neutral position to constitute a self-locking. Mécanisme selon l'une quelconque des revendications précédentes, caractérisé en ce que chaque plateau (18,22) porte une came de commande (53,58) d'un verrou (54,59) de verrouillage dans les deux directions de l'arbre principal (10) dans la position centrale d'ouverture (C1) et que la rotation du plateau à la fin de la phase d'armement provoque la libération du verrou correspondant pour autoriser la rotation de l'arbre principal sous l'action du ressort (27) dans la direction correspondante.Mechanism according to any one of the preceding claims, characterized in that each plate (18,22) carries a control cam (53,58) of a latch (54,59) for locking in the two directions of the shaft main (10) in the central open position (C1) and the rotation of the plate at the end of the arming phase causes the release of the corresponding lock to allow the rotation of the main shaft under the action of the spring (27) in the corresponding direction.
EP91420083A 1990-03-22 1991-03-07 Operating mechanism for a switch with three positions Expired - Lifetime EP0448481B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9003794 1990-03-22
FR9003794A FR2660109B1 (en) 1990-03-23 1990-03-23 CONTROL MECHANISM OF A THREE-POSITION SWITCH.

Publications (2)

Publication Number Publication Date
EP0448481A1 true EP0448481A1 (en) 1991-09-25
EP0448481B1 EP0448481B1 (en) 1995-08-30

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EP91420083A Expired - Lifetime EP0448481B1 (en) 1990-03-22 1991-03-07 Operating mechanism for a switch with three positions

Country Status (11)

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US (1) US5148913A (en)
EP (1) EP0448481B1 (en)
JP (1) JP3219782B2 (en)
BR (1) BR9101105A (en)
CA (1) CA2038078C (en)
DE (1) DE69112461T2 (en)
ES (1) ES2079610T3 (en)
FR (1) FR2660109B1 (en)
ID (1) ID855B (en)
MX (1) MX167070B (en)
ZA (1) ZA912118B (en)

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FR2696866A1 (en) * 1992-10-13 1994-04-15 Merlin Gerin Three-position switch actuation mechanism.
FR2768552A1 (en) * 1997-09-16 1999-03-19 Schneider Electric Sa Three position switch mechanism
EP0955649A2 (en) * 1998-05-07 1999-11-10 Eaton Corporation Electrical switching apparatus with modular operating mechanism for mounting and controlling large compression close spring
FR2877487A1 (en) * 2004-11-04 2006-05-05 Areva T & D Sa MECHANICAL CONTROL DEVICE FOR A THREE POSITIONS AND A DEATH SWITCH
EP1901323A1 (en) * 2006-09-14 2008-03-19 Areva T&amp;D SA Earthing switch mechanism
WO2012059811A1 (en) * 2010-11-04 2012-05-10 Larsen & Toubro Limited An improved mechanical interlock, dual toggling and three position mechanism of an electrical load break switch
CN102881487A (en) * 2012-09-21 2013-01-16 北京双杰电气股份有限公司 Interlocking device for solid insulated switch cabinet
CN103337405A (en) * 2013-06-04 2013-10-02 胡光福 A three-position mechanism with reclosing and grounding closing functions and an operation method thereof
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CN105788941A (en) * 2016-05-12 2016-07-20 泰兴市盛源电器有限公司 Load switch operating mechanism
CN105826097A (en) * 2016-05-12 2016-08-03 泰兴市盛源电器有限公司 Load switch opening and closing operation mechanism
CN106449232A (en) * 2016-10-13 2017-02-22 沈阳斯沃电器有限公司 Automatic changeover switch mechanical interlocking mechanism
CN107026048A (en) * 2016-02-02 2017-08-08 西门子公司 Paralleling switch
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DE19904179A1 (en) * 1999-02-03 2000-08-10 Abb Patent Gmbh Spring storage device for electrical switching device, is tensioned by lever arrangement rotated about longitudinal axis of rotary shaft, and actuates cam to end stop as tension is released
US6423917B2 (en) * 2000-03-17 2002-07-23 General Electric Company Self-disengaging circuit breaker motor operator
US6940032B2 (en) * 2004-01-12 2005-09-06 General Electric Company Method and apparatus for achieving three positions
JP4385914B2 (en) * 2004-10-06 2009-12-16 三菱電機株式会社 Three-position switch operating device
US7115830B1 (en) * 2005-06-08 2006-10-03 Eaton Corporation Redundant pivot trip latch
JP4973357B2 (en) * 2007-07-19 2012-07-11 三菱電機株式会社 Three-position switch operating device
CN102136378B (en) * 2010-11-09 2013-06-19 广东省顺德开关厂有限公司 Operating mechanism of simple metal enclosed switch equipment
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FR2696866A1 (en) * 1992-10-13 1994-04-15 Merlin Gerin Three-position switch actuation mechanism.
EP0593371A1 (en) * 1992-10-13 1994-04-20 Schneider Electric Sa Operating mechanism for a switch with three positions
TR27299A (en) * 1992-10-13 1994-12-29 Merlin Gerin Mechanism to operate a three-position electrical switch.
US5438176A (en) * 1992-10-13 1995-08-01 Merlin Gerin Three-position switch actuating mechanism
FR2768552A1 (en) * 1997-09-16 1999-03-19 Schneider Electric Sa Three position switch mechanism
EP0908908A1 (en) * 1997-09-16 1999-04-14 Schneider Electric Sa Operating mechanism for a switch or a circuit breaker with three positions
EP0955649A2 (en) * 1998-05-07 1999-11-10 Eaton Corporation Electrical switching apparatus with modular operating mechanism for mounting and controlling large compression close spring
EP0955649A3 (en) * 1998-05-07 2000-06-28 Eaton Corporation Electrical switching apparatus with modular operating mechanism for mounting and controlling large compression close spring
FR2877487A1 (en) * 2004-11-04 2006-05-05 Areva T & D Sa MECHANICAL CONTROL DEVICE FOR A THREE POSITIONS AND A DEATH SWITCH
WO2006048583A2 (en) * 2004-11-04 2006-05-11 Areva T & D Sa Mechanical control device for a switch with three positions and a dead centre
WO2006048583A3 (en) * 2004-11-04 2006-08-31 Areva T & D Sa Mechanical control device for a switch with three positions and a dead centre
CN101145466B (en) * 2006-09-14 2012-07-18 阿雷瓦T&D股份公司 Earthing switch mechanism
EP1901323A1 (en) * 2006-09-14 2008-03-19 Areva T&amp;D SA Earthing switch mechanism
FR2906074A1 (en) * 2006-09-14 2008-03-21 Areva T & D Sa SWITCH DISCONNECT MECHANISM MECHANISM
WO2012059811A1 (en) * 2010-11-04 2012-05-10 Larsen & Toubro Limited An improved mechanical interlock, dual toggling and three position mechanism of an electrical load break switch
CN102881487A (en) * 2012-09-21 2013-01-16 北京双杰电气股份有限公司 Interlocking device for solid insulated switch cabinet
CN102881487B (en) * 2012-09-21 2015-03-25 北京双杰电气股份有限公司 Interlocking device for solid insulated switch cabinet
CN103337405A (en) * 2013-06-04 2013-10-02 胡光福 A three-position mechanism with reclosing and grounding closing functions and an operation method thereof
CN103337405B (en) * 2013-06-04 2015-06-24 宁波舜利高压开关科技有限公司 A three-position mechanism with reclosing and grounding closing functions and an operation method thereof
CN104134554A (en) * 2014-06-18 2014-11-05 江苏大全长江电器股份有限公司 Operating mechanism for ring network switchgear
CN107026048A (en) * 2016-02-02 2017-08-08 西门子公司 Paralleling switch
CN105788941A (en) * 2016-05-12 2016-07-20 泰兴市盛源电器有限公司 Load switch operating mechanism
CN105826097A (en) * 2016-05-12 2016-08-03 泰兴市盛源电器有限公司 Load switch opening and closing operation mechanism
CN105826097B (en) * 2016-05-12 2017-12-12 泰兴市盛源电器有限公司 A kind of on-load switch card switch-on operating mechanism
CN105788941B (en) * 2016-05-12 2017-12-12 泰兴市盛源电器有限公司 A kind of load switch operation mechanism
CN106449232A (en) * 2016-10-13 2017-02-22 沈阳斯沃电器有限公司 Automatic changeover switch mechanical interlocking mechanism
CN106449232B (en) * 2016-10-13 2018-06-26 沈阳斯沃电器有限公司 Automatic change-over mechanical interlocking mechanism
WO2020201000A1 (en) * 2019-03-29 2020-10-08 Siemens Aktiengesellschaft Coupling, spring system, drive system having a coupling and spring system, and switchgear comprising said drive system
WO2020200951A1 (en) * 2019-03-29 2020-10-08 Siemens Aktiengesellschaft Spring system for a drive system comprising a coupling, spring system comprising a coupling, drive system comprising a coupling and a spring system and switchgear comprising such a drive system
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Also Published As

Publication number Publication date
EP0448481B1 (en) 1995-08-30
MX167070B (en) 1993-03-01
CA2038078C (en) 2001-12-04
DE69112461T2 (en) 1996-04-18
JPH04249820A (en) 1992-09-04
CA2038078A1 (en) 1991-09-23
US5148913A (en) 1992-09-22
BR9101105A (en) 1991-11-05
FR2660109B1 (en) 1992-06-05
ZA912118B (en) 1991-11-27
JP3219782B2 (en) 2001-10-15
ES2079610T3 (en) 1996-01-16
FR2660109A1 (en) 1991-09-27
DE69112461D1 (en) 1995-10-05
ID855B (en) 1996-08-02

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