EP2564408B1 - Emergency stop device - Google Patents

Emergency stop device Download PDF

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Publication number
EP2564408B1
EP2564408B1 EP11713751.3A EP11713751A EP2564408B1 EP 2564408 B1 EP2564408 B1 EP 2564408B1 EP 11713751 A EP11713751 A EP 11713751A EP 2564408 B1 EP2564408 B1 EP 2564408B1
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EP
European Patent Office
Prior art keywords
detection
actuation
movable
support
contact
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EP11713751.3A
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German (de)
French (fr)
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EP2564408A1 (en
Inventor
Patrice Thizon
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Schneider Electric Industries SAS
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Schneider Electric Industries SAS
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/02—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch
    • H01H3/022—Emergency operating parts, e.g. for stop-switch in dangerous conditions
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/50—Switches 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 assembly.
  • the invention more particularly relates to a switching assembly for assembly on a control assembly to form an emergency stop type switching device.
  • an emergency stop device comprises a control assembly carrying an actuating member and a switching assembly also called a contact block intended to be mounted at the rear of the control unit.
  • 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 propose a new solution to ensure that the control assembly is properly mounted on the switching assembly.
  • This solution is simple in operation and is made in a limited space.
  • the detection switch is arranged to be open when the control assembly is mechanically disconnected from the switching assembly.
  • the first detection contact of the detection switch is formed on the mobile operating support.
  • the first detection contact of the detection switch is made in the same plane as the second operating contact of the operating switch.
  • the detection switch comprises two mobile detection contacts able to cooperate each with a separate detection contact made on the mobile operating support and the mobile operating support comprises two electrically conductive half-plates. assembled on a piece of insulating material and each carrying a detection contact of the detection switch.
  • the mobile detection support comprises a conductive part comprising the two mobile detection contacts.
  • the switching assembly comprises an actuating pusher intended to act on the mobile actuating support and actuable by the actuating member of the control assembly and a detection pusher intended to act on the mobile detection support.
  • the actuating pusher and the sensing pusher are nested and coaxial.
  • the switching assembly comprises a contact pressure spring positioned between the detection pusher and the mobile detection medium.
  • the switching assembly comprises an opening spring positioned between the sensing pusher and the movable actuating support.
  • the switching assembly comprises a housing, a main spring being positioned between the housing and the movable actuating support.
  • the switching assembly comprises stop means arranged to open the detection switch when opening the operating switch.
  • the invention also relates to an emergency stop type switching device comprising a control assembly intended to be mechanically connected to a switching assembly as defined above.
  • an emergency stop type device also called a punch switch, comprises two separate sets 1, 2 formed of a control unit, hereinafter referred to as the first set 1, and a switching assembly. , hereinafter referred to as second set 2.
  • the first assembly 1 comprises an actuating member 10 intended to be depressed in an emergency by the operator along a control shaft (X) to open an electrical circuit.
  • the actuating member 10 can thus take a rest position ( figure 1 ), in which it is not depressed, leaving the electric circuit closed and an operating position in which it is depressed to open the electric circuit.
  • the second set 2 is a contact block for controlling the electric circuit.
  • This second assembly 2 comprises a housing 20 ( figure 6 ), for example made of plastics material, having hooking means 21a, 21b to the first set 1.
  • the housing 20 contains an actuating switch for controlling the electric circuit according to the position of the actuating member 10.
  • the housing 20 also contains a detection switch making it possible to monitor that the second set 2 is hooked onto the first set 1 while keeping the electric circuit open as long as the first set 1 is mechanically disconnected from the second set 2
  • the actuating switch comprises a set of normally closed actuating contacts, also called an open contact, and the detection switch has a set of normally open sense contacts, also called closed 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 which is positioned between the movable actuating support 3 and the housing 20.
  • the movable actuating support 3 consists of two half conductive plates 30, 31 of electricity 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 a 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 movable 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 with 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 towards a position of closure 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 second set 2 comprises an actuating device cooperating with the actuating member 10 of the first set 1.
  • This device comprises an actuating pusher 8 and a sensing pusher 9 arranged to act respectively on the mobile actuating 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 can be actuated when the first set 1 is mechanically connected to the second set 2, so as to move the movable detection medium 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 first assembly 1, extended by an intermediate portion formed of two parallel uprights forming a slide mechanism for the conductive part 50 of the movable detection support 5, the contact pressure spring 7 being supported on the one hand against the movable detection support 5 and on the other hand against the head 90 of the detection pusher 9.
  • the detection pusher 9 ends by 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 movable 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 ) has a parallelepipedal main body provided on two opposite sides 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 first assembly 1 is mechanically assembled on the second assembly 2, which causes the detection pusher 9 towards the inside of the block of contacts against the opening spring 6. Under the action of the detection pusher 9 and of 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 Figures 7A to 7C show an improvement of the switching assembly of the invention. This improvement makes it possible to ensure that the detection contacts do not remain soldered, which improves the overall safety of the emergency stop device. For this, when opening the actuation switch, the detection switch also opens.
  • the Figures 7A to 7C thus show a configuration different from that represented in Figures 5A and 5B .
  • the precise solution consists, for example, in arranging stop means on the path of the movable detection support 5 when the actuating switch is opened.
  • the mobile detection support 5 comes into contact with the stop means 220 made on the housing 20 of the switching assembly while the mobile support actuator 3 completes its opening stroke, thus also causing the opening of the detection switch.
  • the contact pressure spring 7 is compressed between the mobile detection support 5 and the detection pusher 9.

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  • Push-Button Switches (AREA)
  • Mechanisms For Operating Contacts (AREA)

Description

La présente invention se rapporte à un ensemble de commutation. L'invention concerne plus particulièrement un ensemble de commutation destiné à être assemblé sur un ensemble de commande pour former un dispositif de commutation de type arrêt d'urgence.The present invention relates to a switching assembly. The invention more particularly relates to a switching assembly for assembly on a control assembly to form an emergency stop type switching device.

En règle générale, un dispositif d'arrêt d'urgence comporte un ensemble de commande portant un organe d'actionnement et 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 device comprises a control assembly carrying an actuating member and a switching assembly also called a contact block intended to be mounted at the rear of the control unit. 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 US6,198,058 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 actuating member, the normally closed contacts open.

Le but de l'invention est de proposer une nouvelle solution permettant de s'assurer que l'ensemble de commande est bien monté sur l'ensemble de commutation. Cette solution est d'un fonctionnement simple et est réalisée dans un encombrement limité.The object of the invention is to propose a new solution to ensure that the control assembly is properly mounted on the switching assembly. This solution is simple in operation and is made in a limited space.

Ce but est atteint par un ensemble de commutation destiné à être assemblé sur un ensemble de commande doté d'un organe d'actionnement pouvant prendre une position de repos et une position d'actionnement, l'ensemble de commutation comportant :

  • un commutateur d'actionnement du type normalement fermé comportant au moins un premier contact d'actionnement fixe et un support mobile d'actionnement portant au moins un second contact d'actionnement mobile apte à coopérer avec le premier contact d'actionnement fixe pour commander un circuit électrique selon la position de l'organe d'actionnement,
  • un commutateur de détection du type normalement ouvert connecté en série avec le commutateur d'actionnement et comportant au moins un premier contact de détection et un support mobile de détection portant au moins un second contact de détection mobile par rapport au premier contact de détection et apte à coopérer avec le premier contact de détection pour commander le circuit électrique,
  • le premier contact de détection du commutateur de détection étant solidaire en mouvement du support mobile d'actionnement.
This object is achieved by a switching assembly intended to be assembled on a control assembly provided with an actuating member that can assume a rest position and an actuating position, the switching assembly comprising:
  • an actuation switch of the normally closed type comprising at least a first fixed actuating contact and a movable actuating support carrying at least a second movable actuating contact adapted to cooperate with the first fixed actuating contact to control a electrical circuit according to the position of the actuating member,
  • a normally open type detection switch connected in series with the operation switch and having at least a first detection contact and a movable detection support carrying at least a second movable detection contact with respect to the first detection contact and capable of to cooperate with the first detection contact to control the electrical circuit,
  • the first detecting contact of the detecting switch being integral in motion with the movable actuating support.

Selon une particularité de l'invention, le commutateur de détection est agencé pour être ouvert lorsque l'ensemble de commande est déconnecté mécaniquement de l'ensemble de commutation.According to a feature of the invention, the detection switch is arranged to be open when the control assembly is mechanically disconnected from the switching assembly.

Selon une autre particularité, le premier contact de détection du commutateur de détection est réalisé sur le support mobile d'actionnement.According to another feature, the first detection contact of the detection switch is formed on the mobile operating support.

Selon une autre particularité, le premier contact de détection du commutateur de détection est réalisé dans le même plan que le second contact d'actionnement du commutateur d'actionnement.According to another feature, the first detection contact of the detection switch is made in the same plane as the second operating contact of the operating switch.

Selon une autre particularité, le commutateur de détection comporte deux contacts de détection mobiles aptes à coopérer chacun avec un contact de détection distinct réalisé sur le support mobile d'actionnement et le support mobile d'actionnement comporte deux demi-plaques conductrices de l'électricité assemblées sur une pièce en matériau isolant et portant chacune un contact de détection du commutateur de détection.According to another particularity, the detection switch comprises two mobile detection contacts able to cooperate each with a separate detection contact made on the mobile operating support and the mobile operating support comprises two electrically conductive half-plates. assembled on a piece of insulating material and each carrying a detection contact of the detection switch.

Selon une autre particularité, le support mobile de détection comporte une pièce conductrice comportant les deux contacts de détection mobiles.According to another particularity, the mobile detection support comprises a conductive part comprising the two mobile detection contacts.

Selon une autre particularité, l'ensemble de commutation comporte un poussoir d'actionnement destiné à agir sur le support mobile d'actionnement et actionnable par l'organe d'actionnement de l'ensemble de commande et un poussoir de détection destiné à agir sur le support mobile de détection.According to another particularity, the switching assembly comprises an actuating pusher intended to act on the mobile actuating support and actuable by the actuating member of the control assembly and a detection pusher intended to act on the mobile detection support.

Selon une autre particularité, le poussoir d'actionnement et le poussoir de détection sont imbriqués et coaxiaux.According to another particularity, the actuating pusher and the sensing pusher are nested and coaxial.

Selon une autre particularité, l'ensemble de commutation comporte un ressort de pression de contacts positionné entre le poussoir de détection et le support mobile de détection.According to another particularity, the switching assembly comprises a contact pressure spring positioned between the detection pusher and the mobile detection medium.

Selon une autre particularité, l'ensemble de commutation comporte un ressort d'ouverture positionné entre le poussoir de détection et le support mobile d'actionnement.According to another feature, the switching assembly comprises an opening spring positioned between the sensing pusher and the movable actuating support.

Selon une autre particularité, l'ensemble de commutation comporte un boîtier, un ressort principal étant positionné entre le boîtier et le support mobile d'actionnement.According to another feature, the switching assembly comprises a housing, a main spring being positioned between the housing and the movable actuating support.

Selon une autre particularité, l'ensemble de commutation comporte des moyens de butée agencés pour ouvrir le commutateur de détection lors de l'ouverture du commutateur d'actionnement.According to another feature, the switching assembly comprises stop means arranged to open the detection switch when opening the operating switch.

L'invention concerne également un dispositif de commutation de type arrêt d'urgence comportant un ensemble de commande destiné à être connecté mécaniquement sur un ensemble de commutation tel que défini ci-dessus.The invention also relates to an emergency stop type switching device comprising a control assembly intended to be mechanically connected to a switching assembly as defined above.

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 :

  • la figure 1 représente le dispositif d'arrêt d'urgence de l'invention,
  • 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 de l'invention,
  • les figures 7A, 7B et 7C représentent selon trois coupes transversales, l'ensemble de commutation du dispositif d'arrêt d'urgence doté d'un perfectionnement.
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 figure 1 represents the emergency stop device of the invention,
  • 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 invention,
  • the Figures 7A, 7B and 7C represent in three cross sections, the switching assembly of the emergency stop device having an improvement.

De manière connue, un dispositif de type arrêt d'urgence, appelé également interrupteur coup de poing, comporte deux ensembles 1, 2 distincts formé d'un ensemble de commande, ci-après désigné premier ensemble 1, et d'un ensemble de commutation, ci-après désigné second ensemble 2.In known manner, an emergency stop type device, also called a punch switch, comprises two separate sets 1, 2 formed of a control unit, hereinafter referred to as the first set 1, and a switching assembly. , hereinafter referred to as second set 2.

En référence à la figure 1, le premier ensemble 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 (figure 1), 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 first assembly 1 comprises an actuating member 10 intended to be depressed in an emergency by the operator along a control shaft (X) to open an electrical circuit. The actuating member 10 can thus take a rest position ( figure 1 ), in which it is not depressed, leaving the electric circuit closed and an operating position in which it is depressed to open the electric circuit.

Le second ensemble 2 est un bloc de contacts destiné à la commande du circuit électrique. Ce second ensemble 2 comporte un boîtier 20 (figure 6), par exemple en matière plastique, comportant des moyens d'accrochage 21 a, 21 b au premier ensemble 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 le second ensemble 2 est bien accroché sur le premier ensemble 1 en maintenant le circuit électrique ouvert tant que le premier ensemble 1 est déconnecté mécaniquement du second ensemble 2. Le commutateur d'actionnement comporte un jeu de contacts d'actionnement normalement fermés, appelé également contacts à ouverture, et le commutateur de détection comporte un jeu de contacts de détection normalement ouverts, appelé également contacts à fermeture. Le commutateur d'actionnement et le commutateur de détection sont connectés en série sur le circuit électrique à commander.The second set 2 is a contact block for controlling the electric circuit. This second assembly 2 comprises a housing 20 ( figure 6 ), for example made of plastics material, having hooking means 21a, 21b to the first set 1. According to the invention, the housing 20 contains an actuating switch for controlling the electric circuit according to the position of the actuating member 10. The housing 20 also contains a detection switch making it possible to monitor that the second set 2 is hooked onto the first set 1 while keeping the electric circuit open as long as the first set 1 is mechanically disconnected from the second set 2 The actuating switch comprises a set of normally closed actuating contacts, also called an open contact, and the detection switch has a set of normally open sense contacts, also called closed 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 qui est 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 which is positioned between the movable actuating support 3 and the housing 20. The movable actuating support 3 consists of two half conductive plates 30, 31 of electricity 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 a 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 contact 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 d'actionnement fixe et d'un contact d'actionnement mobile.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 movable 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 with 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 towards a position of closure 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.

Le second ensemble 2 comporte un dispositif d'actionnement coopérant avec l'organe d'actionnement 10 du premier ensemble 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 second set 2 comprises an actuating device cooperating with the actuating member 10 of the first set 1. This device comprises an actuating pusher 8 and a sensing pusher 9 arranged to act respectively on the mobile actuating 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 le premier ensemble 1 est connecté mécaniquement sur le second ensemble 2, 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 can be actuated when the first set 1 is mechanically connected to the second set 2, so as to move the movable detection medium 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 du premier ensemble 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 first assembly 1, extended by an intermediate portion formed of two parallel uprights forming a slide mechanism for the conductive part 50 of the movable detection support 5, the contact pressure spring 7 being supported on the one hand against the movable detection support 5 and on the other hand against the head 90 of the detection pusher 9. The detection pusher 9 ends by 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 movable 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 ) has a parallelepipedal main body provided on two opposite sides 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 le premier ensemble 1 est déconnecté mécaniquement du second ensemble 2, 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 first set 1 is mechanically disconnected from the second set 2, 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

Le premier ensemble 1 est assemblé mécaniquement sur le second ensemble 2, 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 first assembly 1 is mechanically assembled on the second assembly 2, which causes the detection pusher 9 towards the inside of the block of contacts against the opening spring 6. Under the action of the detection pusher 9 and of 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 le premier ensemble 1 est assemblé mécaniquement sur le second ensemble 2, une pression sur l'organe d'actionnement 10 du premier ensemble 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 first set 1 is mechanically assembled on the second set 2, a pressure on the actuating member 10 of the first set 1 first drives the sensing pusher 9 completely inside the actuating pusher 8. 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 du premier ensemble 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 first assembly 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.

Figures 7A, 7B et 7CFigures 7A, 7B and 7C

Les figures 7A à 7C montrent un perfectionnement de l'ensemble de commutation de l'invention. Ce perfectionnement permet de s'assurer que les contacts de détection ne restent pas soudés ce qui améliore la sécurité globale du dispositif d'arrêt d'urgence. Pour cela, lors de l'ouverture du commutateur d'actionnement, le commutateur de détection s'ouvre également. Les figures 7A à 7C montrent ainsi une configuration différente de celle représentée en figures 5A et 5B. La solution précise consiste par exemple à disposer des moyens de butée sur le trajet du support mobile de détection 5 lors de l'ouverture du commutateur d'actionnement. Ainsi lors du déplacement en translation du support mobile d'actionnement 3 vers sa position d'ouverture, le support mobile de détection 5 vient au contact des moyens de butée 220 réalisés sur le boîtier 20 de l'ensemble de commutation alors que le support mobile d'actionnement 3 termine sa course d'ouverture, entraînant alors également l'ouverture du commutateur de détection. Lorsque le support mobile de détection 5 arrive en butée, le ressort pression de contact 7 se comprime entre le support mobile de détection 5 et le poussoir de détection 9.The Figures 7A to 7C show an improvement of the switching assembly of the invention. This improvement makes it possible to ensure that the detection contacts do not remain soldered, which improves the overall safety of the emergency stop device. For this, when opening the actuation switch, the detection switch also opens. The Figures 7A to 7C thus show a configuration different from that represented in Figures 5A and 5B . The precise solution consists, for example, in arranging stop means on the path of the movable detection support 5 when the actuating switch is opened. Thus, during the displacement in translation of the mobile actuating support 3 towards its open position, the mobile detection support 5 comes into contact with the stop means 220 made on the housing 20 of the switching assembly while the mobile support actuator 3 completes its opening stroke, thus also causing the opening of the detection switch. When the mobile detection support 5 comes into abutment, the contact pressure spring 7 is compressed between the mobile detection support 5 and the detection pusher 9.

Selon l'invention, il est ainsi possible de surveiller l'accrochage du premier ensemble 1 sur le second ensemble 2 en ouvrant le commutateur de détection lorsque le premier ensemble 1 est déconnecté mécaniquement du second ensemble 2 tout en ne perturbant pas le fonctionnement normal du dispositif lorsque le premier ensemble 1 est correctement assemblé sur le second ensemble 2.According to the invention, it is thus possible to monitor the attachment of the first set 1 to the second set 2 by opening the detection switch when the first set 1 is mechanically disconnected from the second set 2 while not disturbing the normal operation of the device when the first set 1 is correctly assembled on the second set 2.

Claims (13)

  1. Switching assembly (2) designed to be assembled on a control assembly (1) furnished with an actuation member (10) that is able to take a rest position and an actuation position, the switching assembly (2) comprising:
    - an actuation switch of the normally closed type comprising at least one first fixed actuation contact (200, 210) and a movable actuation support (3) supporting at least one second movable actuation contact (300, 310) capable of interacting with the first fixed actuation contact (200, 210) in order to control an electric circuit according to the position of the actuation member (10),
    - a detection switch of the normally open type connected in series with the actuation switch and comprising at least one first detection contact (301, 311) and a movable detection support (5) supporting at least one second detection contact (501, 511) that can move relative to the first detection contact (301, 311) and is capable of interacting with the first detection contact (301, 311) in order to control the electric circuit,
    characterized in that:
    - the first detection contact (301, 311) of the detection switch is secured in movement to the movable actuation support (3).
  2. Switching assembly according to Claim 1, characterized in that the detection switch is arranged to be open when the control assembly is mechanically disconnected from the switching assembly.
  3. Switching assembly according to Claim 1 or 2, characterized in that the first detection contact (301, 311) of the detection switch is made on the movable actuation support (3).
  4. Switching assembly according to one of Claims 1 to 3, characterized in that the first detection contact (301, 311) of the detection switch is made in the same plane as the second actuation contact (300, 310) of the actuation switch.
  5. Switching assembly according to one of Claims 1 to 4, characterized in that the detection switch comprises two movable detection contacts (501, 511) each capable of interacting with a distinct detection contact (301, 311) made on the movable actuation support (3) and in that the movable actuation support (3) comprises two electrically conductive half-plates (30, 31) assembled on one part (32) in insulating material and each supporting a detection contact (301, 311) of the detection switch.
  6. Switching assembly according to Claim 5, characterized in that the movable detection support (5) comprises a conductive part (50) comprising the two movable detection contacts (501, 511).
  7. Switching assembly according to one of Claims 1 to 6, characterized in that it comprises an actuation plunger (8) designed to act on the movable actuation support (3) and capable of being actuated by the actuation member (10) of the control assembly (1) and a detection plunger (9) designed to act on the movable detection support (5).
  8. Switching assembly according to Claim 7, characterized in that the actuation plunger (8) and the detection plunger (9) are nested and coaxial.
  9. Switching assembly according to Claim 7 or 8, characterized in that it comprises a contact pressure spring (7) positioned between the detection plunger (9) and the movable detection support (5).
  10. Switching assembly according to one of Claims 7 to 9, characterized in that it comprises an opening spring (6) positioned between the detection plunger (9) and the movable actuation support (3).
  11. Switching assembly according to one of Claims 7 to 10, characterized in that it comprises a housing (20) and in that it comprises a main spring (4) positioned between the housing (20) and the movable actuation support (3).
  12. Switching assembly according to one of Claims 1 to 11, characterized in that it comprises abutment means (220) arranged so as to open the detection switch when the actuation switch is opened.
  13. Switching device of the emergency stop type comprising a control assembly (1) designed to be mechanically connected to a switching assembly (2) as defined in one of Claims 1 to 12.
EP11713751.3A 2010-04-29 2011-04-06 Emergency stop device Active EP2564408B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1053328A FR2959590B1 (en) 2010-04-29 2010-04-29 EMERGENCY STOP DEVICE
PCT/EP2011/055324 WO2011134766A1 (en) 2010-04-29 2011-04-06 Emergency stop device

Publications (2)

Publication Number Publication Date
EP2564408A1 EP2564408A1 (en) 2013-03-06
EP2564408B1 true EP2564408B1 (en) 2014-12-03

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EP11713751.3A Active EP2564408B1 (en) 2010-04-29 2011-04-06 Emergency stop device

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EP (1) EP2564408B1 (en)
CN (1) CN102804304B (en)
FR (1) FR2959590B1 (en)
WO (1) WO2011134766A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11101084B2 (en) 2018-11-07 2021-08-24 Schneider Electric Industries Sas Switching assembly with secure attachment solution for emergency stop device

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140277613A1 (en) * 2013-03-14 2014-09-18 Tait Towers Manufacturing, LLC Emergency stop system for an automation and motion control system
CN105340040B (en) * 2013-06-20 2017-07-14 伊顿电气Ip两合公司 Pressure-operated safety switch with monitoring function
CN111640609B (en) * 2020-05-28 2022-04-08 福建省三星电气股份有限公司 Emergency stop device with a reliably mounted switching assembly

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Publication number Priority date Publication date Assignee Title
US4029924A (en) * 1974-10-10 1977-06-14 Westinghouse Electric Corporation Contact block interlock for electric switch
DE4101493C2 (en) * 1991-01-19 2001-07-19 Schlegel Georg Gmbh & Co Electrical switch with a contact device and a plunger
DE29722281U1 (en) * 1997-12-17 1999-04-15 Klöckner-Moeller GmbH, 53115 Bonn Multiple interrupting contact device for electrical switching devices
US6198058B1 (en) 1999-09-27 2001-03-06 Rockwell Technologies, Llc Switch contact mechanism

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11101084B2 (en) 2018-11-07 2021-08-24 Schneider Electric Industries Sas Switching assembly with secure attachment solution for emergency stop device

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EP2564408A1 (en) 2013-03-06
WO2011134766A1 (en) 2011-11-03
CN102804304B (en) 2015-09-16
FR2959590B1 (en) 2012-04-20
FR2959590A1 (en) 2011-11-04
CN102804304A (en) 2012-11-28

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