EP2564409B1 - Emergency stop device with secure mounted switching assemblies - Google Patents

Emergency stop device with secure mounted switching assemblies Download PDF

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Publication number
EP2564409B1
EP2564409B1 EP11720148.3A EP11720148A EP2564409B1 EP 2564409 B1 EP2564409 B1 EP 2564409B1 EP 11720148 A EP11720148 A EP 11720148A EP 2564409 B1 EP2564409 B1 EP 2564409B1
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EP
European Patent Office
Prior art keywords
assembly
switching assembly
switching
control
actuating
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EP11720148.3A
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German (de)
French (fr)
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EP2564409A1 (en
Inventor
Patrice Thizon
Eric Bardy
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Schneider Electric Industries SAS
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Schneider Electric Industries SAS
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Publication of EP2564409A1 publication Critical patent/EP2564409A1/en
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00Mechanisms for operating contacts
    • H01H3/02Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch
    • H01H3/022Emergency operating parts, e.g. for stop-switch in dangerous conditions
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/50Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a single operating member

Definitions

  • the present invention relates to a switching device of the emergency stop type.
  • an emergency stop type switching device comprises a control assembly carrying an actuating member and at least one switching assembly also called a contact block intended to be mounted at the rear of the set of switches. ordered.
  • the switching assembly comprises a movable bridge supporting movable contacts actuated by the actuating member with respect to fixed contacts from a closed position to an open position to open an electrical circuit in an emergency.
  • the main contacts are therefore of normally closed type.
  • the control assembly and the switching assembly are mounted mechanically on either side of a wall.
  • the switching assembly is therefore invisible to the user. It is therefore impossible for the user to know continuously whether the control assembly is properly mounted on the switching assembly. But a stall of one of the sets relative to the other no longer allows the device to work properly. Since an emergency stop device is intended to exercise a safety function, it is necessary that this device functions properly. For this, it is necessary to ensure that the switching assembly is hooked to the control assembly when the emergency stop device is operated.
  • the object of the invention is to provide an emergency stop type switching device in which it is possible to secure the attachment of its switching assemblies reliably, simply and inexpensively.
  • the first switching assembly comprises a housing and the mechanical means comprise a projecting part made on the housing and cooperating with a rear face of the second switching assembly when the first switching assembly is mechanically hooked onto the control assembly. .
  • the projecting portion consists of a fin made perpendicular to the axis of attachment.
  • the device comprises a second fin made symmetrically to the first fin and intended to cooperate with a rear face of a third switching assembly to ensure that it latches when the first switch assembly is mechanically hooked on the control assembly, said third switching assembly being positioned adjacent the first switching assembly.
  • an emergency stop-type switching device also called a punch switch, comprises at least two sets 1, 2 separate formed of a control unit 1 and one or more switching assemblies 2a, 2b, 2c.
  • the control unit 1 comprises an actuating member 10 to be depressed in an emergency by the operator along a control axis (X) to open an electrical circuit.
  • the actuating member 10 can thus take a rest position, in which it is not depressed, leaving the electric circuit closed and an actuating position in which it is depressed to open the electric circuit.
  • the switching assemblies 2a, 2b, 2c are intended to be hooked by their front face f1, f10, f20 along an axis of attachment coinciding with the control axis (X) at the rear of the control unit 1.
  • the emergency stop type switching device comprises a main switching assembly 2a for controlling the electric circuit and for example one or two auxiliary switching assemblies 2b, 2c adjacent to the main switching assembly 2a and intended for for example, to provide signaling functions.
  • One of the two auxiliary switching assemblies comprises for example a set of normally closed electrical contacts (called NC for "Normally Closed”), also called open contacts, while the other auxiliary switching assembly comprises a set of electrical contacts. normally open (called NO for "Normally Opened”), also called closed contacts.
  • the principle of the invention is to be able to secure the attachment of at least one switching assembly by means of another switching assembly whose attachment is monitored by a specific device.
  • a first switching assembly that is hooked to the rear of the control assembly comprises a device for monitoring that it is hooked to the control assembly and mechanical means able to act on a second set adjacent switch to ensure mechanical attachment of this switching assembly on the control assembly.
  • the main switching assembly 2a thus makes it possible to secure the assembly of one or two auxiliary switching assemblies 2b, 2c on the control assembly 1.
  • each auxiliary switching assembly 2b, 2c must be positioned adjacent to the main switching assembly 2a. If the device comprises two auxiliary switching assemblies 2b, 2c, these assemblies must be positioned on either side of the main switching assembly 2a ( Figures 1A and 1B ).
  • the main switching assembly 2a is for example of the type shown on the Figures 2A to 6 .
  • the main switching assembly 2a is a contact block for controlling the electric circuit.
  • This assembly 2a comprises a housing 20 ( figure 6 ), for example made of plastic material, having hooking means 21a, 21b to the control assembly 1.
  • the housing 20 contains an actuating switch for controlling the electrical circuit according to the position of the actuating member 10.
  • the housing 20 also contains a detection switch for monitoring that the main switching assembly 2a is hooked onto the control assembly 1 while keeping the electrical circuit open as long as the assembly command1 is mechanically disconnected from the main switching assembly 2a.
  • the operation switch has a set of normally closed operating contacts and the detection switch has a set of normally open sense contacts. The operation switch and the detection switch are connected in series to the electrical circuit to be controlled.
  • the actuating switch comprises a movable actuating support 3 and a main spring 4 positioned between the movable actuating support 3 and the housing 20.
  • the movable actuating support 3 consists of two conductive half-plates. 30, 31 assembled on a central piece 32 which is made of insulating material, for example plastic, this central piece 32 being mounted on the main spring 4.
  • Each half-plate 30, 31 carries at its end an actuating contact 300, 310 movable adapted to cooperate with a corresponding fixed actuating contact 200, 210 for controlling the electrical circuit.
  • the movable actuating support 3 is initially in a closed position of the contacts and is able to move to an open position when the actuating member 10 is depressed in its actuating position.
  • the detection switch comprises, for its part, a mobile detection support 5, an opening spring 6 and a contact pressure spring 7.
  • the movable detection support 5 comprises a conductive piece 50 of electricity having a hat-shaped cross-section carrying at each end a movable detection contact 501, 511.
  • the detection contacts 301, 311 corresponding to the two mobile detection contacts 501, 511 are said "fixed” detection contacts and are made on the mobile actuating support 3, so that they are integral in motion of the movable support. 3.
  • These contacts 301, 311 are indeed fixed on the mobile operating support when the latter is in the closed position or in the open position but move with the movable actuating support 3 when the latter changes position.
  • the set of detection contacts is placed between the two sets each formed of a fixed actuating contact and a movable actuating contact.
  • the mobile actuating support 3 and the movable detection support 5 are displaceable in translation along the control axis (X).
  • the movable actuating support 3 is initially in a closed position in which its actuating contacts are closed and is able to move to an open position in which its actuating contacts are open.
  • the mobile detection support 5 is initially in an open position in which its detection contacts are open and is able to move to a closed position in which its detection contacts are closed.
  • the conductive part 50 provides, via the detection contacts, the electrical continuity between the two conductive half-plates 30, 31 of the mobile operating support 3.
  • the electric circuit is closed.
  • the main switching assembly 2a comprises an actuating device cooperating with the actuating member 10 of the control assembly 1.
  • This device comprises an actuating pusher 8 and a pusher.
  • detection 9 arranged to act respectively on the mobile operating support 3 and on the mobile detection support 5.
  • the actuating pusher 8 can be actuated by the actuating member 10 to open the electric circuit.
  • the sensing pusher 9 is operable when the control assembly 1 is mechanically connected to the main switching assembly 2a, so as to move the movable sensing support 5 to close the electrical circuit.
  • the two pushers 8, 9 are coaxial and nested, the detection pushbutton 9 being able to slide in the actuating pusher 8.
  • the two pushers 8, 9 are each capable of taking a rest position in which they protrude outside the contact block and a working position in which they are moved inwardly of the contact block.
  • the detection pusher 9 ( figure 6 ) comprises an upper part consisting of a head 90 against which can abut the actuating member 10 of the control assembly 1, extended by an intermediate portion formed of two parallel uprights forming a slide mechanism for the conductive part 50 of the mobile detection support 5, the contact pressure spring 7 bearing on the one hand against the mobile detection medium 5 and on the other hand against the head 90 of the detection pusher 9.
  • the detection pusher 9 ends with a lower part in which is housed the opening spring 6, the latter being arranged between the movable actuating support 3 and the detection pusher 9.
  • the detection pusher 9 and the mobile detection medium 5 are thus arranged so as to slide relative to each other along the control axis (X).
  • the actuating pusher 8 ( figure 6 ) comprises a parallelepipedal main body provided on two opposite faces with two symmetrical fins 80 intended to rest against the body 20 of the contact block when it is urged by the opening spring 6 towards its rest position. It also comprises a central opening 81 inside which the detection pusher 9 is arranged, the head 90 of the detection pusher 9 comprising a collar held in abutment against the actuating pusher by means of the opening spring 6.
  • the actuating pusher 8 also comprises two symmetrical members 82 protrudingly extending, parallel to the control axis (X), in the direction of the movable actuating support.
  • the detection pushbutton 9 is biased towards its rest position by the opening spring 6 and drives the actuating pusher 8 towards its rest position.
  • the detection push-button 9, biased towards its rest position by the opening spring 6, keeps the mobile detection support 5 in the open position.
  • the control assembly 1 is mechanically assembled on the main switching assembly 2a, which causes the detection push-button 9 towards the inside of the block of contacts against the opening spring 6. Under the action of the detecting pushbutton 9 and the contact pressure spring 7, the mobile detection support 5 goes down in the closed position.
  • the latter drives the assembly formed by the actuating pusher 8 and the detection pusher 9 towards the inside of the block of contacts.
  • the actuating pusher 8 is then already resting on the movable actuating support 3 (cf. figure 3B ), it then presses the movable actuating support 3 and drives it to its open position against the main spring 4.
  • the actuating switch is open.
  • the detection switch remains in the closed position.
  • the main switching assembly 2a comprises mechanical means cooperating with the rear face f11, f21 of each auxiliary switching assembly 2b, 2c.
  • These mechanical means comprise for example a protruding part made on the housing 20 of the main switching assembly 2a and intended to come into contact with the rear face f11, f21 of each adjacent auxiliary switching assembly 2b, 2c.
  • This protruding portion is for example constituted by at least one fin 220, 221 (two fins in the figures) made on a lateral face f3, f4 of the housing 20 of the main switching assembly 2a and forming a bearing surface.
  • the emergency stop device may comprise two auxiliary switching assemblies whose attachment must be secured
  • the main switching assembly 2a comprises a fin 220, 221 on each of its lateral faces f3, f4.
  • the two fins 220, 221 are made symmetrically on each side face f3, f4 of the housing of the main switching assembly 2a and thus make it possible to secure at the same time the attachment of the two auxiliary switching assemblies 2b, 2c.
  • the presence of these fins 220, 221 on the main switching assembly 2a makes it necessary to first hook up the switching assemblies.
  • auxiliaries 2b, 2c on the control assembly 1 and then hook the main switching assembly 2a which, if it is hooked, secures the attachment of adjoining auxiliary switching assemblies 2b, 2c.

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  • Push-Button Switches (AREA)
  • Mechanisms For Operating Contacts (AREA)
  • Switch Cases, Indication, And Locking (AREA)

Description

La présente invention se rapporte à un dispositif de commutation de type arrêt d'urgence.The present invention relates to a switching device of the emergency stop type.

En règle générale, un dispositif de commutation de type arrêt d'urgence comporte un ensemble de commande portant un organe d'actionnement et au moins un ensemble de commutation appelé également bloc de contacts destiné à être monté à l'arrière de l'ensemble de commande. L'ensemble de commutation comporte un pont mobile supportant des contacts mobiles actionnés par l'organe d'actionnement par rapport à des contacts fixes d'une position de fermeture vers une position d'ouverture pour ouvrir un circuit électrique en cas d'urgence. Dans un dispositif d'arrêt d'urgence, les contacts principaux sont donc de type normalement fermé.As a general rule, an emergency stop type switching device comprises a control assembly carrying an actuating member and at least one switching assembly also called a contact block intended to be mounted at the rear of the set of switches. ordered. The switching assembly comprises a movable bridge supporting movable contacts actuated by the actuating member with respect to fixed contacts from a closed position to an open position to open an electrical circuit in an emergency. In an emergency stop device, the main contacts are therefore of normally closed type.

Lors du montage du dispositif, l'ensemble de commande et l'ensemble de commutation sont montés mécaniquement de part et d'autre d'une paroi. L'ensemble de commutation est donc invisible à l'utilisateur. Il est donc impossible pour l'utilisateur de savoir en permanence si l'ensemble de commande est bien monté sur l'ensemble de commutation. Or un décrochage de l'un des ensembles par rapport à l'autre ne permet plus au dispositif de fonctionner correctement. Etant donné qu'un dispositif d'arrêt d'urgence est destiné à exercer une fonction de sécurité, il est nécessaire que ce dispositif fonctionne correctement. Pour cela, Il faut donc s'assurer que l'ensemble de commutation est bien accroché à l'ensemble de commande lorsque le dispositif d'arrêt d'urgence est amené à fonctionner.When mounting the device, the control assembly and the switching assembly are mounted mechanically on either side of a wall. The switching assembly is therefore invisible to the user. It is therefore impossible for the user to know continuously whether the control assembly is properly mounted on the switching assembly. But a stall of one of the sets relative to the other no longer allows the device to work properly. Since an emergency stop device is intended to exercise a safety function, it is necessary that this device functions properly. For this, it is necessary to ensure that the switching assembly is hooked to the control assembly when the emergency stop device is operated.

Il est notamment connu des brevets US 6,198,058 et DE4101493 des dispositifs permettant de surveiller l'accrochage de l'ensemble de commande sur l'ensemble de commutation. Dans ces deux brevets, un jeu de contacts normalement fermés et un jeu de contacts normalement ouverts sont mis en série sur le circuit électrique à commander. Tant que l'ensemble de commutation est déconnecté mécaniquement de l'ensemble de commande, les contacts normalement ouverts restent ouverts et lors du montage de l'ensemble de commutation sur l'ensemble de commande, ces contacts normalement ouverts se ferment. En fonctionnement normal, lors d'une pression sur l'organe d'actionnement, les contacts normalement fermés s'ouvrent.It is particularly known patents US6,198,058 and DE4101493 devices for monitoring the attachment of the control assembly to the switching assembly. In these two patents, a set of normally closed contacts and a set of normally open contacts are placed in series on the electrical circuit to be controlled. As long as the switching assembly is mechanically disconnected from the control assembly, the normally open contacts remain open and when mounting the switching assembly on the control assembly these normally open contacts close. In normal operation, when pressing on the actuator, the normally closed contacts open.

Cependant, ces solutions de l'état de la technique ont pour seul but de surveiller l'accrochage d'un seul ensemble de commutation. Or il est courant qu'un dispositif d'arrêt d'urgence puisse comporter plusieurs ensembles de commutation adjacents, c'est-à-dire un ensemble de commande principal et un ou plusieurs ensembles de commutation de type auxiliaires qui sont accrochés à l'arrière de l'ensemble de commande. Pour s'assurer qu'ils sont tous bien accrochés à l'ensemble de commande, il faudrait donc leur attribuer à chacun un mécanisme spécifique du type de celui décrit dans les brevets de l'art antérieur. Mais lorsque les ensembles de commutation auxiliaires sont destinés à réaliser des fonctions simples, par exemple de type signalisation ou sont connectés en redondance de l'ensemble de commutation principal, l'ajout d'un mécanisme spécifique pour sécuriser leur accrochage semble inadapté car complexe et trop coûteux.However, these solutions of the state of the art are only intended to monitor the attachment of a single switching assembly. However, it is common for an emergency stop device to have a plurality of adjacent switch assemblies, i.e., a master control assembly and one or more auxiliary type switch assemblies that are attached to the master switch assembly. rear of the command set. To ensure that they are all firmly attached to the control unit, it should therefore be assigned to each a specific mechanism of the type described in the patents of the prior art. But when the auxiliary switching assemblies are intended to perform simple functions, for example signaling type or are redundantly connected to the main switching assembly, the addition of a specific mechanism to secure their attachment seems inappropriate because complex and too expensive.

Le but de l'invention est de proposer un dispositif de commutation de type arrêt d'urgence dans lequel il est possible de sécuriser l'accrochage de ses ensembles de commutation de manière fiable, simple et peu coûteuse.The object of the invention is to provide an emergency stop type switching device in which it is possible to secure the attachment of its switching assemblies reliably, simply and inexpensively.

Ce but est atteint par un dispositif de commutation de type arrêt d'urgence comportant un ensemble de commande doté d'un organe d'actionnement pouvant prendre une position de repos et une position d'actionnement, un premier ensemble de commutation et un deuxième ensemble de commutation destinés à être assemblés mécaniquement suivant un axe de fixation par leur face avant sur l'ensemble de commande, le deuxième ensemble de commutation étant positionné de manière adjacente au premier ensemble de commutation, le premier ensemble de commutation comportant :

  • un commutateur d'actionnement de type normalement fermé destiné à commander un circuit électrique selon la position de l'organe d'actionnement,
  • un dispositif mécanique pour ouvrir le circuit électrique lorsque l'ensemble de commande est décroché mécaniquement du premier ensemble de commutation,
    caractérisé en ce que le premier ensemble de commutation comporte :
  • des moyens mécaniques aptes à agir sur le deuxième ensemble de commutation pour assurer l'accrochage mécanique du deuxième ensemble de commutation sur l'ensemble de commande lorsque le premier ensemble de commutation est accroché mécaniquement sur l'ensemble de commande.
This object is achieved by an emergency stop type switching device comprising a control unit provided with an actuating member that can assume a rest position and an actuating position, a first switching assembly and a second set. switching devices intended to be mechanically assembled along a fixing axis by their front face on the control assembly, the second switching assembly being positioned adjacent to the first switching assembly, the first switching assembly comprising:
  • a normally closed type operating switch for controlling an electric circuit according to the position of the actuating member,
  • a mechanical device for opening the electrical circuit when the control assembly is mechanically unhooked from the first switching assembly,
    characterized in that the first switching assembly comprises:
  • mechanical means able to act on the second switching assembly to ensure the mechanical attachment of the second switching assembly on the control assembly when the first switching assembly is mechanically hooked to the control assembly.

Selon une particularité, le premier ensemble de commutation comporte un boîtier et les moyens mécaniques comportent une partie saillante réalisée sur le boîtier et coopérant avec une face arrière du deuxième ensemble de commutation lorsque le premier ensemble de commutation est accroché mécaniquement sur l'ensemble de commande.According to one particular feature, the first switching assembly comprises a housing and the mechanical means comprise a projecting part made on the housing and cooperating with a rear face of the second switching assembly when the first switching assembly is mechanically hooked onto the control assembly. .

Selon une autre particularité, la partie saillante est constituée d'une ailette réalisée perpendiculairement à l'axe de fixation.According to another feature, the projecting portion consists of a fin made perpendicular to the axis of attachment.

Selon une autre particularité, le dispositif comporte une seconde ailette réalisée symétriquement à la première ailette et destinée à coopérer avec une face arrière d'un troisième ensemble de commutation pour s'assurer de son accrochage lorsque le premier ensemble de commutation est accroché mécaniquement sur l'ensemble de commande, ce troisième ensemble de commutation étant positionné de manière adjacente au premier ensemble de commutation.According to another feature, the device comprises a second fin made symmetrically to the first fin and intended to cooperate with a rear face of a third switching assembly to ensure that it latches when the first switch assembly is mechanically hooked on the control assembly, said third switching assembly being positioned adjacent the first switching assembly.

D'autres caractéristiques et avantages vont apparaître dans la description détaillée qui suit en se référant à un mode de réalisation donné à titre d'exemple et représenté par les dessins annexés sur lesquels :

  • les figures 1A et 1B représentent schématiquement le dispositif de commutation de l'invention doté à l'arrière de trois ensembles de commutation adjacents, respectivement avant sécurisation et après sécurisation de l'accrochage,
  • les figures 2A à 5B représentent, selon deux coupes transversales axiales perpendiculaires, l'ensemble de commutation du dispositif dans ses différentes phases de fonctionnement,
  • la figure 6 représente, en perspective et en vue éclatée, l'ensemble de commutation des figures 2A à 5B.
Other features and advantages will appear in the detailed description which follows with reference to an embodiment given by way of example and represented by the appended drawings in which:
  • the Figures 1A and 1B schematically represent the switching device of the invention provided at the rear of three adjacent switching assemblies, respectively before securing and after securing the attachment,
  • the Figures 2A to 5B represent, in two perpendicular axial cross sections, the switching assembly of the device in its different operating phases,
  • the figure 6 represents, in perspective and in exploded view, the switching assembly of the Figures 2A to 5B .

De manière connue, un dispositif de commutation de type arrêt d'urgence, appelé également interrupteur coup de poing, comporte au moins deux ensembles 1, 2 distincts formés d'un ensemble de commande 1 et d'un ou plusieurs ensembles de commutation 2a, 2b, 2c.In known manner, an emergency stop-type switching device, also called a punch switch, comprises at least two sets 1, 2 separate formed of a control unit 1 and one or more switching assemblies 2a, 2b, 2c.

En référence à la figure 1, l'ensemble de commande 1 comporte un organe d'actionnement 10 destiné à être enfoncé en cas d'urgence par l'opérateur suivant un axe de commande (X) pour ouvrir un circuit électrique. L'organe d'actionnement 10 peut ainsi prendre une position de repos, dans laquelle il n'est pas enfoncé, laissant le circuit électrique fermé et une position d'actionnement dans laquelle il est enfoncé pour ouvrir le circuit électrique.With reference to the figure 1 , the control unit 1 comprises an actuating member 10 to be depressed in an emergency by the operator along a control axis (X) to open an electrical circuit. The actuating member 10 can thus take a rest position, in which it is not depressed, leaving the electric circuit closed and an actuating position in which it is depressed to open the electric circuit.

Les ensembles de commutation 2a, 2b, 2c sont destinés à être accrochés par leur face avant f1, f10, f20 suivant un axe de fixation confondu avec l'axe de commande (X) à l'arrière de l'ensemble de commande 1.The switching assemblies 2a, 2b, 2c are intended to be hooked by their front face f1, f10, f20 along an axis of attachment coinciding with the control axis (X) at the rear of the control unit 1.

Typiquement le dispositif de commutation de type arrêt d'urgence comporte un ensemble de commutation principal 2a destiné à la commande du circuit électrique et par exemple un ou deux ensembles de commutation auxiliaires 2b, 2c adjacents à l'ensemble de commutation principal 2a et destinés à assurer par exemple des fonctions de signalisation. L'un des deux ensembles de commutation auxiliaires comporte par exemple un jeu de contacts électriques normalement fermés (appelé NC pour "Normally Closed"), appelé également contacts à ouverture, tandis que l'autre ensemble de commutation auxiliaire comporte un jeu de contacts électriques normalement ouverts (appelé NO pour "Normally Opened"), appelé également contacts à fermeture. Ces ensembles de commutation auxiliaires sont couramment utilisés dans les dispositifs de commutation déjà présents sur le marché.Typically the emergency stop type switching device comprises a main switching assembly 2a for controlling the electric circuit and for example one or two auxiliary switching assemblies 2b, 2c adjacent to the main switching assembly 2a and intended for for example, to provide signaling functions. One of the two auxiliary switching assemblies comprises for example a set of normally closed electrical contacts (called NC for "Normally Closed"), also called open contacts, while the other auxiliary switching assembly comprises a set of electrical contacts. normally open (called NO for "Normally Opened"), also called closed contacts. These auxiliary switching assemblies are commonly used in switching devices already on the market.

Le principe de l'invention est de pouvoir sécuriser l'accrochage d'au moins un ensemble de commutation à l'aide d'un autre ensemble de commutation dont l'accrochage est surveillé grâce à un dispositif spécifique. Autrement dit, un premier ensemble de commutation qui est accroché à l'arrière de l'ensemble de commande comporte un dispositif permettant de surveiller qu'il est bien accroché à l'ensemble de commande et des moyens mécaniques aptes à agir sur un deuxième ensemble de commutation adjacent pour assurer l'accrochage mécanique de cet ensemble de commutation sur l'ensemble de commande.The principle of the invention is to be able to secure the attachment of at least one switching assembly by means of another switching assembly whose attachment is monitored by a specific device. In other words, a first switching assembly that is hooked to the rear of the control assembly comprises a device for monitoring that it is hooked to the control assembly and mechanical means able to act on a second set adjacent switch to ensure mechanical attachment of this switching assembly on the control assembly.

Selon l'invention, l'ensemble de commutation principal 2a permet donc de sécuriser l'assemblage d'un ou deux ensembles de commutation auxiliaires 2b, 2c sur l'ensemble de commande 1. Pour cela, chaque ensemble de commutation auxiliaire 2b, 2c doit être positionné de manière adjacente à l'ensemble de commutation principal 2a. Si le dispositif comporte deux ensembles de commutation auxiliaires 2b, 2c, ces ensembles doivent être positionnés de part et d'autre de l'ensemble de commutation principal 2a (figures 1A et 1B).According to the invention, the main switching assembly 2a thus makes it possible to secure the assembly of one or two auxiliary switching assemblies 2b, 2c on the control assembly 1. For this purpose, each auxiliary switching assembly 2b, 2c must be positioned adjacent to the main switching assembly 2a. If the device comprises two auxiliary switching assemblies 2b, 2c, these assemblies must be positioned on either side of the main switching assembly 2a ( Figures 1A and 1B ).

L'ensemble de commutation principal 2a est par exemple du type représenté sur les figures 2A à 6.The main switching assembly 2a is for example of the type shown on the Figures 2A to 6 .

Il comporte notamment, comme dans les brevets US 6,198,058 et DE4101493 de l'art antérieur, un dispositif mécanique qui permet d'ouvrir le circuit électrique commandé lorsque l'ensemble de commande est décroché mécaniquement, permettant ainsi de s'assurer que l'ensemble de commutation principal 2a est bien accroché lorsque le dispositif d'arrêt d'urgence doit fonctionner. D'autres solutions sont également présentées dans les demandes déposées par la demanderesse sous les n° PCT/EP2009/062736 et FR0956479 . Les figures 2A à 6 représentent donc une variante de réalisation aux solutions décrites dans ces brevets antérieurs.It includes, as in patents US6,198,058 and DE4101493 of the prior art, a mechanical device which makes it possible to open the electric circuit controlled when the control assembly is unhooked mechanically, thus making it possible to ensure that the main switching assembly 2a is hooked when the device of emergency stop must work. Other solutions are also presented in the applications filed by the applicant under the numbers PCT / EP2009 / 062736 and FR0956479 . The Figures 2A to 6 therefore represent an alternative embodiment to the solutions described in these prior patents.

L'ensemble de commutation principal 2a est un bloc de contacts destiné à la commande du circuit électrique. Cet ensemble 2a comporte un boîtier 20 (figure 6), par exemple en matière plastique, comportant des moyens d'accrochage 21 a, 21 b à l'ensemble de commande 1. Selon l'invention, le boîtier 20 contient un commutateur d'actionnement permettant de commander le circuit électrique selon la position de l'organe d'actionnement 10. Le boîtier 20 contient également un commutateur de détection permettant de surveiller que l'ensemble de commutation principal 2a est bien accroché sur l'ensemble de commande 1 en maintenant le circuit électrique ouvert tant que l'ensemble de commande1 est déconnecté mécaniquement de l'ensemble de commutation principal 2a. Le commutateur d'actionnement comporte un jeu de contacts d'actionnement normalement fermés et le commutateur de détection comporte un jeu de contacts de détection normalement ouverts. Le commutateur d'actionnement et le commutateur de détection sont connectés en série sur le circuit électrique à commander.The main switching assembly 2a is a contact block for controlling the electric circuit. This assembly 2a comprises a housing 20 ( figure 6 ), for example made of plastic material, having hooking means 21a, 21b to the control assembly 1. According to the invention, the housing 20 contains an actuating switch for controlling the electrical circuit according to the position of the actuating member 10. The housing 20 also contains a detection switch for monitoring that the main switching assembly 2a is hooked onto the control assembly 1 while keeping the electrical circuit open as long as the assembly command1 is mechanically disconnected from the main switching assembly 2a. The operation switch has a set of normally closed operating contacts and the detection switch has a set of normally open sense contacts. The operation switch and the detection switch are connected in series to the electrical circuit to be controlled.

Plus précisément, le commutateur d'actionnement comporte un support mobile d'actionnement 3 et un ressort principal 4 positionné entre le support mobile d'actionnement 3 et le boîtier 20. Le support mobile d'actionnement 3 est constitué de deux demi-plaques conductrices 30, 31 de l'électricité assemblées sur une pièce centrale 32 qui est en matériau isolant, par exemple en plastique, cette pièce centrale 32 étant montée sur le ressort principal 4. Chaque demi-plaque 30, 31 porte à son extrémité un contact d'actionnement 300, 310 mobile apte à coopérer avec un contact d'actionnement 200, 210 fixe correspondant pour commander le circuit électrique. Le support mobile d'actionnement 3 est initialement dans une position de fermeture des contacts et est apte à se déplacer vers une position d'ouverture lorsque l'organe d'actionnement 10 est enfoncé dans sa position d'actionnement.More specifically, the actuating switch comprises a movable actuating support 3 and a main spring 4 positioned between the movable actuating support 3 and the housing 20. The movable actuating support 3 consists of two conductive half-plates. 30, 31 assembled on a central piece 32 which is made of insulating material, for example plastic, this central piece 32 being mounted on the main spring 4. Each half-plate 30, 31 carries at its end an actuating contact 300, 310 movable adapted to cooperate with a corresponding fixed actuating contact 200, 210 for controlling the electrical circuit. The movable actuating support 3 is initially in a closed position of the contacts and is able to move to an open position when the actuating member 10 is depressed in its actuating position.

Le commutateur de détection comporte pour sa part un support mobile de détection 5, un ressort d'ouverture 6 et un ressort 7 de pression de contacts. Le support mobile de détection 5 comporte une pièce conductrice 50 de l'électricité présentant une section transversale en forme de chapeau portant à chaque extrémité un contact de détection 501, 511 mobile. Les contacts de détection 301, 311 correspondants aux deux contacts de détection 501, 511 mobiles sont dits contacts de détection "fixes" et sont réalisés sur le support mobile d'actionnement 3, de telle sorte qu'ils sont solidaires en mouvement du support mobile d'actionnement 3. Ces contacts 301, 311 sont en effet fixes sur le support mobile d'actionnement lorsque ce dernier est en position de fermeture ou en position d'ouverture mais se déplacent avec le support mobile d'actionnement 3 lorsque celui-ci change de position. Le jeu de contacts de détection est placé entre les deux ensembles formés chacun d'un contact fixe d'actionnement et d'un contact mobile d'actionnement.The detection switch comprises, for its part, a mobile detection support 5, an opening spring 6 and a contact pressure spring 7. The movable detection support 5 comprises a conductive piece 50 of electricity having a hat-shaped cross-section carrying at each end a movable detection contact 501, 511. The detection contacts 301, 311 corresponding to the two mobile detection contacts 501, 511 are said "fixed" detection contacts and are made on the mobile actuating support 3, so that they are integral in motion of the movable support. 3. These contacts 301, 311 are indeed fixed on the mobile operating support when the latter is in the closed position or in the open position but move with the movable actuating support 3 when the latter changes position. The set of detection contacts is placed between the two sets each formed of a fixed actuating contact and a movable actuating contact.

Le support mobile d'actionnement 3 et le support mobile de détection 5 sont déplaçables en translation suivant l'axe de commande (X). Le support mobile d'actionnement 3 est initialement dans une position de fermeture dans laquelle ses contacts d'actionnement sont fermés et est apte à se déplacer vers une position d'ouverture dans laquelle ses contacts d'actionnement sont ouverts. Le support mobile de détection 5 est initialement dans une position d'ouverture dans laquelle ses contacts de détection sont ouverts et est apte à se déplacer vers une position de fermeture dans laquelle ses contacts de détection sont fermés. Lorsque le support mobile de détection 5 est en position de fermeture, la pièce conductrice 50 assure, via les contacts de détection, la continuité électrique entre les deux demi-plaques conductrices 30, 31 du support mobile d'actionnement 3. Lorsque le support mobile d'actionnement 3 et le support mobile de détection 5 sont dans leur position de fermeture, le circuit électrique est fermé.The mobile actuating support 3 and the movable detection support 5 are displaceable in translation along the control axis (X). The movable actuating support 3 is initially in a closed position in which its actuating contacts are closed and is able to move to an open position in which its actuating contacts are open. The mobile detection support 5 is initially in an open position in which its detection contacts are open and is able to move to a closed position in which its detection contacts are closed. When the mobile detection support 5 is in the closed position, the conductive part 50 provides, via the detection contacts, the electrical continuity between the two conductive half-plates 30, 31 of the mobile operating support 3. When the mobile support 3 and the movable detection support 5 are in their closed position, the electric circuit is closed.

L'ensemble de commutation principal 2a comporte un dispositif d'actionnement coopérant avec l'organe d'actionnement 10 de l'ensemble de commande 1. Ce dispositif comprend un poussoir d'actionnement 8 et un poussoir de détection 9 agencés pour agir respectivement sur le support mobile d'actionnement 3 et sur le support mobile de détection 5.The main switching assembly 2a comprises an actuating device cooperating with the actuating member 10 of the control assembly 1. This device comprises an actuating pusher 8 and a pusher. detection 9 arranged to act respectively on the mobile operating support 3 and on the mobile detection support 5.

Le poussoir d'actionnement 8 est susceptible d'être actionné par l'organe d'actionnement 10 pour ouvrir le circuit électrique. Le poussoir de détection 9 est susceptible d'être actionné lorsque l'ensemble de commande 1 est connecté mécaniquement sur l'ensemble de commutation principal 2a, de manière à déplacer le support mobile de détection 5 pour fermer le circuit électrique.The actuating pusher 8 can be actuated by the actuating member 10 to open the electric circuit. The sensing pusher 9 is operable when the control assembly 1 is mechanically connected to the main switching assembly 2a, so as to move the movable sensing support 5 to close the electrical circuit.

Selon l'invention, les deux poussoirs 8, 9 sont coaxiaux et imbriqués, le poussoir de détection 9 étant apte à coulisser dans le poussoir d'actionnement 8. Les deux poussoirs 8, 9 sont susceptibles de prendre chacun une position de repos dans laquelle ils sont saillants à l'extérieur du bloc de contacts et une position de travail dans laquelle ils sont déplacés vers l'intérieur du bloc de contacts.According to the invention, the two pushers 8, 9 are coaxial and nested, the detection pushbutton 9 being able to slide in the actuating pusher 8. The two pushers 8, 9 are each capable of taking a rest position in which they protrude outside the contact block and a working position in which they are moved inwardly of the contact block.

Le poussoir de détection 9 (figure 6) comporte une partie haute constituée d'une tête 90 contre laquelle peut venir s'appuyer l'organe d'actionnement 10 de l'ensemble de commande 1, prolongée d'une partie intermédiaire formée de deux montants parallèles réalisant un mécanisme de glissière pour la pièce conductrice 50 du support mobile de détection 5, le ressort de pression de contacts 7 prenant appui d'une part contre le support mobile de détection 5 et d'autre part contre la tête 90 du poussoir de détection 9. Le poussoir de détection 9 se termine par une partie basse dans laquelle vient se loger le ressort d'ouverture 6, ce dernier étant agencé entre le support mobile d'actionnement 3 et le poussoir de détection 9. Le poussoir de détection 9 et le support mobile de détection 5 sont ainsi agencés de manière à pouvoir coulisser l'un par rapport à l'autre suivant l'axe de commande (X).The detection pusher 9 ( figure 6 ) comprises an upper part consisting of a head 90 against which can abut the actuating member 10 of the control assembly 1, extended by an intermediate portion formed of two parallel uprights forming a slide mechanism for the conductive part 50 of the mobile detection support 5, the contact pressure spring 7 bearing on the one hand against the mobile detection medium 5 and on the other hand against the head 90 of the detection pusher 9. The detection pusher 9 ends with a lower part in which is housed the opening spring 6, the latter being arranged between the movable actuating support 3 and the detection pusher 9. The detection pusher 9 and the mobile detection medium 5 are thus arranged so as to slide relative to each other along the control axis (X).

Le poussoir d'actionnement 8 (figure 6) comporte un corps principal parallélépipédique muni sur deux faces opposées de deux ailettes 80 symétriques destinées à s'appuyer contre le corps 20 du bloc de contacts lorsqu'il est sollicité par le ressort d'ouverture 6 vers sa position de repos. Il comporte également une ouverture centrale 81 à l'intérieur de laquelle est agencé le poussoir de détection 9, la tête 90 du poussoir de détection 9 comportant une collerette maintenue en appui contre le poussoir d'actionnement grâce au ressort d'ouverture 6. Le poussoir d'actionnement 8 comporte également deux organes 82 symétriques s'étendant de manière saillante, parallèlement à l'axe de commande (X), en direction du support mobile d'actionnement.The actuating pusher 8 ( figure 6 ) comprises a parallelepipedal main body provided on two opposite faces with two symmetrical fins 80 intended to rest against the body 20 of the contact block when it is urged by the opening spring 6 towards its rest position. It also comprises a central opening 81 inside which the detection pusher 9 is arranged, the head 90 of the detection pusher 9 comprising a collar held in abutment against the actuating pusher by means of the opening spring 6. The actuating pusher 8 also comprises two symmetrical members 82 protrudingly extending, parallel to the control axis (X), in the direction of the movable actuating support.

En liaison avec les figures 2A à 5B, le principe de fonctionnement de l'invention est le suivant :In liaison with Figures 2A to 5B , the operating principle of the invention is as follows:

Figures 2A et 2BFigures 2A and 2B

Lorsque l'ensemble de commande 1 est déconnecté mécaniquement de l'ensemble de commutation principal 2a, les deux poussoirs 8, 9 sont en position de repos. Le poussoir de détection 9 est sollicité vers sa position de repos par le ressort d'ouverture 6 et entraîne le poussoir d'actionnement 8 vers sa position de repos. Le poussoir de détection 9, sollicité vers sa position de repos par le ressort d'ouverture 6, maintient le support mobile de détection 5 en position d'ouverture.When the control unit 1 is mechanically disconnected from the main switching assembly 2a, the two pushers 8, 9 are in the rest position. The detection pushbutton 9 is biased towards its rest position by the opening spring 6 and drives the actuating pusher 8 towards its rest position. The detection push-button 9, biased towards its rest position by the opening spring 6, keeps the mobile detection support 5 in the open position.

Figures 3A et 3BFigures 3A and 3B

L'ensemble de commande 1 est assemblé mécaniquement sur l'ensemble de commutation principal 2a, ce qui entraîne le poussoir de détection 9 vers l'intérieur du bloc de contacts à l'encontre du ressort d'ouverture 6. Sous l'action du poussoir de détection 9 et du ressort de pression de contacts 7, le support mobile de détection 5 descend en position de fermeture. Le poussoir d'actionnement 8, libéré de la pression exercée par le poussoir de détection 9 via le ressort d'ouverture 6, descend pour venir s'appuyer via ses organes 82 sur le support mobile d'actionnement 3.The control assembly 1 is mechanically assembled on the main switching assembly 2a, which causes the detection push-button 9 towards the inside of the block of contacts against the opening spring 6. Under the action of the detecting pushbutton 9 and the contact pressure spring 7, the mobile detection support 5 goes down in the closed position. The actuating pusher 8, released from the pressure exerted by the detection pusher 9 via the opening spring 6, descends to come to bear via its members 82 on the mobile actuating support 3.

Le commutateur d'actionnement et le commutateur de détection sont alors fermés, le dispositif d'arrêt d'urgence est donc correctement assemblé et prêt à fonctionner.The actuation switch and the sense switch are then closed, thus the emergency stop device is correctly assembled and ready for operation.

Figures 4A et 4BFigures 4A and 4B

Alors que l'ensemble de commande 1 est assemblé mécaniquement sur l'ensemble de commutation principal 2a, une pression sur l'organe d'actionnement 10 de l'ensemble de commande 1 entraîne d'abord le poussoir de détection 9 entièrement à l'intérieur du poussoir d'actionnement 8 en réduisant la surcourse du poussoir de détection 9 par compression du ressort 7 de pression de contacts. Le commutateur de détection et le commutateur d'actionnement restent fermés.While the control assembly 1 is mechanically assembled to the main switching assembly 2a, pressing the actuating member 10 of the control assembly 1 first drives the sensing pusher 9 fully to the inside the actuating pusher 8 by reducing the overtravel of the sensing pusher 9 by compression of the contact pressure spring 7. The detection switch and the operation switch remain closed.

Figures 5A et 5BFigures 5A and 5B

En continuant d'appuyer sur l'organe d'actionnement 10 de l'ensemble de commande 1, celui-ci entraîne l'ensemble formé du poussoir d'actionnement 8 et du poussoir de détection 9 vers l'intérieur du bloc de contacts. Le poussoir d'actionnement 8 étant alors déjà en appui sur le support mobile d'actionnement 3 (cf. figure 3B), celui-ci appuie alors sur le support mobile d'actionnement 3 et l'entraîne jusqu'à sa position d'ouverture à l'encontre du ressort principal 4. Le commutateur d'actionnement est donc ouvert. Le commutateur de détection reste pour sa part en position de fermeture.Continuing to press the actuating member 10 of the control unit 1, the latter drives the assembly formed by the actuating pusher 8 and the detection pusher 9 towards the inside of the block of contacts. The actuating pusher 8 is then already resting on the movable actuating support 3 (cf. figure 3B ), it then presses the movable actuating support 3 and drives it to its open position against the main spring 4. The actuating switch is open. The detection switch remains in the closed position.

Par conséquent, il est possible de surveiller l'accrochage de l'ensemble de commande 1 sur l'ensemble de commutation principal 2a en ouvrant le commutateur de détection lorsque l'ensemble de commande 1 est déconnecté mécaniquement de l'ensemble de commutation 2a tout en ne perturbant pas le fonctionnement normal du dispositif lorsque l'ensemble de commande 1 est correctement assemblé sur l'ensemble de commutation principal 2a.Therefore, it is possible to monitor the latching of the control assembly 1 on the main switching assembly 2a by opening the detection switch when the control assembly 1 is mechanically disconnected from the switching assembly 2a while by not disturbing the normal operation of the device when the control assembly 1 is correctly assembled on the main switching assembly 2a.

Par ailleurs, pour sécuriser l'assemblage de chaque ensemble de commutation auxiliaire 2b, 2c adjacent, l'ensemble de commutation principal 2a comporte des moyens mécaniques coopérant avec la face arrière f11, f21 de chaque ensemble de commutation auxiliaire 2b, 2c. Ces moyens mécaniques comportent par exemple une partie saillante réalisée sur le boîtier 20 de l'ensemble de commutation principal 2a et destinée à venir en contact avec la face arrière f11, f21 de chaque ensemble de commutation auxiliaire 2b, 2c adjacent. Cette partie saillante est par exemple constituée d'au moins une ailette 220, 221 (deux ailettes sur les figures) réalisée sur une face latérale f3, f4 du boîtier 20 de l'ensemble de commutation principal 2a et formant une surface d'appui s'étendant de manière perpendiculaire à l'axe de fixation ou, autrement dit, parallèlement à la face arrière f2 du boîtier 20. Comme le dispositif d'arrêt d'urgence peut comporter deux ensembles de commutation auxiliaires dont l'accrochage doit être sécurisé, l'ensemble de commutation principal 2a comporte une ailette 220, 221 sur chacune de ses faces latérales f3, f4. Les deux ailettes 220, 221 sont réalisées symétriquement sur chaque face latérale f3,f4 du boîtier de l'ensemble de commutation principal 2a et permettent ainsi de sécuriser en même temps l'accrochage des deux ensembles de commutation auxiliaires 2b, 2c.Furthermore, to secure the assembly of each auxiliary auxiliary switching assembly 2b, 2c adjacent, the main switching assembly 2a comprises mechanical means cooperating with the rear face f11, f21 of each auxiliary switching assembly 2b, 2c. These mechanical means comprise for example a protruding part made on the housing 20 of the main switching assembly 2a and intended to come into contact with the rear face f11, f21 of each adjacent auxiliary switching assembly 2b, 2c. This protruding portion is for example constituted by at least one fin 220, 221 (two fins in the figures) made on a lateral face f3, f4 of the housing 20 of the main switching assembly 2a and forming a bearing surface. extending perpendicularly to the fastening axis or, in other words, parallel to the rear face f2 of the housing 20. As the emergency stop device may comprise two auxiliary switching assemblies whose attachment must be secured, the main switching assembly 2a comprises a fin 220, 221 on each of its lateral faces f3, f4. The two fins 220, 221 are made symmetrically on each side face f3, f4 of the housing of the main switching assembly 2a and thus make it possible to secure at the same time the attachment of the two auxiliary switching assemblies 2b, 2c.

Selon l'invention, la présence de ces ailettes 220, 221 sur l'ensemble de commutation principal 2a oblige à accrocher d'abord les ensembles de commutation auxiliaires 2b, 2c sur l'ensemble de commande 1 puis d'accrocher l'ensemble de commutation principal 2a qui, s'il est bien accroché, sécurise l'accrochage des ensembles de commutation auxiliaires 2b, 2c qui sont adjacents.According to the invention, the presence of these fins 220, 221 on the main switching assembly 2a makes it necessary to first hook up the switching assemblies. auxiliaries 2b, 2c on the control assembly 1 and then hook the main switching assembly 2a which, if it is hooked, secures the attachment of adjoining auxiliary switching assemblies 2b, 2c.

Claims (4)

  1. Switching device of the emergency stop type comprising a control assembly (1) furnished with an actuation member (10) that is able to take a rest position and an actuation position, a first switching assembly (2a) and a second switching assembly (2b) designed to be mechanically assembled along a fixing axis (X) by their front face (f1, f10) to the control assembly (1), the second switching assembly (2b) being positioned adjacent to the first switching assembly (2a), the first switching assembly (2a) comprising:
    - an actuation switch of the normally closed type designed to control an electric circuit depending on the position of the actuation member (10),
    - a mechanical device for opening the electric circuit when the control assembly (1) is mechanically uncoupled from the first switching assembly (2a),
    characterized in that the first switching assembly (2a) comprises:
    - mechanical means capable of acting on the second switching assembly (2b) in order to mechanically couple the second switching assembly (2b) to the control assembly (1) when the first switching assembly (2a) is mechanically coupled to the control assembly (1).
  2. Device according to Claim 1, characterized in that the first switching assembly (2a) comprises a housing (20) and in that the mechanical means comprise a protruding portion produced on the housing (20) and interacting with a rear face (f11) of the second switching assembly (2b) when the first switching assembly (2a) is mechanically coupled to the control assembly (1).
  3. Device according to Claim 2, characterized in that the protruding portion consists of a wing (220) made perpendicularly to the fixing axis.
  4. Device according to Claim 3, characterized in that it comprises a second wing (221) made symmetrically to the first wing (220) and designed to interact with a rear face (f21) of a third switching assembly (2c) in order to ensure its coupling when the first switching assembly (2a) is mechanically coupled to the control assembly (1), this third switching assembly (2c) being positioned adjacent to the first switching assembly (2a).
EP11720148.3A 2010-04-29 2011-04-14 Emergency stop device with secure mounted switching assemblies Active EP2564409B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1053329A FR2959591B1 (en) 2010-04-29 2010-04-29 EMERGENCY STOP DEVICE WITH SECURELY ASSEMBLED SWITCH ASSEMBLIES
PCT/FR2011/050855 WO2011135225A1 (en) 2010-04-29 2011-04-14 Emergency stop device with security-assembled switching assemblies

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EP2564409A1 EP2564409A1 (en) 2013-03-06
EP2564409B1 true EP2564409B1 (en) 2015-11-11

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EP (1) EP2564409B1 (en)
CN (1) CN102804305B (en)
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Publication number Priority date Publication date Assignee Title
FR3088135B1 (en) * 2018-11-07 2020-10-09 Schneider Electric Ind Sas SWITCHING KIT WITH SECURE HANGING SOLUTION FOR EMERGENCY STOP DEVICE

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6206733B1 (en) * 2000-04-18 2001-03-27 Chih-Yuan Wu Connection block assembly for a waterproof switch
EP1152441A1 (en) * 1999-11-10 2001-11-07 Idec Izumi Corporation Electric part, and emergency stop system and communication device having the same

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR956479A (en) 1950-02-02
FR2523688A1 (en) * 1982-03-19 1983-09-23 Telemecanique Electrique EMERGENCY STOP DEVICE
DE4101493C2 (en) * 1991-01-19 2001-07-19 Schlegel Georg Gmbh & Co Electrical switch with a contact device and a plunger
US6198058B1 (en) * 1999-09-27 2001-03-06 Rockwell Technologies, Llc Switch contact mechanism
EP1801827B1 (en) * 2005-12-20 2008-08-20 Siemens Aktiengesellschaft A system with a control device and a switching element

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1152441A1 (en) * 1999-11-10 2001-11-07 Idec Izumi Corporation Electric part, and emergency stop system and communication device having the same
US6206733B1 (en) * 2000-04-18 2001-03-27 Chih-Yuan Wu Connection block assembly for a waterproof switch

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WO2011135225A1 (en) 2011-11-03
FR2959591A1 (en) 2011-11-04
FR2959591B1 (en) 2012-04-20
EP2564409A1 (en) 2013-03-06
CN102804305A (en) 2012-11-28
CN102804305B (en) 2015-03-25

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