WO2011134766A1 - Emergency stop device - Google Patents

Emergency stop device Download PDF

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Publication number
WO2011134766A1
WO2011134766A1 PCT/EP2011/055324 EP2011055324W WO2011134766A1 WO 2011134766 A1 WO2011134766 A1 WO 2011134766A1 EP 2011055324 W EP2011055324 W EP 2011055324W WO 2011134766 A1 WO2011134766 A1 WO 2011134766A1
Authority
WO
WIPO (PCT)
Prior art keywords
actuating
detection
switching assembly
contact
movable
Prior art date
Application number
PCT/EP2011/055324
Other languages
French (fr)
Inventor
Patrice Thizon
Original Assignee
Schneider Electric Industries Sas
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Schneider Electric Industries Sas filed Critical Schneider Electric Industries Sas
Priority to EP11713751.3A priority Critical patent/EP2564408B1/en
Priority to CN201180014888.9A priority patent/CN102804304B/en
Publication of WO2011134766A1 publication Critical patent/WO2011134766A1/en

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/02—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.
  • 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 capable of cooperating with the first fixed actuating contact for controlling an electric circuit according to the position of the actuating member
  • a normally open type detection switch connected in series with the operation switch and comprising at least a first detection contact and a movable detection support carrying at least a second mobile detection contact with respect to the first detection contact and adapted to cooperate with the first detection contact for controlling the electric circuit
  • the first detection contact of the detection switch being integral in motion with the mobile operating support.
  • 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.
  • FIG. 1 represents the emergency stop device of the invention
  • FIGS. 2A to 5B show, in two perpendicular axial transverse sections, the switching assembly of the device in its different operating phases
  • FIG. 6 represents, in perspective and in exploded view, the switching assembly of the invention
  • 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 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 ( Figure 1), in which it is not depressed, leaving the electrical circuit closed and an actuating position in which it is depressed to open the electrical circuit.
  • the second set 2 is a contact block for controlling the electric circuit.
  • This second assembly 2 comprises a housing 20 (FIG. 6), for example made of plastic, having hooking means 21a, 21b to the first 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 second set 2 is well hooked on the first set 1 while keeping the electrical circuit open as the first set 1 is mechanically disconnected from the second set 2.
  • the actuating switch comprises a set of normally closed operating 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 mobile detection medium 5 comprises a conductive piece 50 of electricity having a hat-shaped cross-section carrying at each end a movable detection contact 501, 51 1.
  • the detection contacts 301, 31 1 corresponding to the two mobile detection contacts 501, 51 1 are said "fixed” detection contacts and are made on the mobile actuating support 3, so that they are integral in motion mobile movable support 3.
  • These contacts 301, 31 1 are in fact fixed on the mobile operating support when the latter is in the closed position or in the open position but move with the mobile actuating support 3 when this one 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 detection pusher 9 arranged to act respectively on the mobile actuating support 3 and on the mobile detection medium 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 (FIG. 6) comprises an upper part consisting of a head 90 against which the actuating member 10 of the first assembly 1 can be supported, extended by an intermediate portion formed by two parallel uprights 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 movable detection support 5 and on the other hand against the head 90 of the detection pusher 9
  • the detection push-button 9 terminates in a lower part in which the opening spring 6 is housed, the latter being arranged between the movable actuating support 3 and the detection push-button 9.
  • the detection push-button 9 and the mobile detection support 5 are thus arranged so as to slide relative to each other along the control axis (X).
  • the actuating pusher 8 (FIG. 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 first assembly 1 is mechanically assembled on the second assembly 2, which causes the detection pusher 9 towards the inside of the contact block in contact with the opening spring 6. Under the action of the detection pusher 9 and the spring contact pressure 7, the mobile detection medium 5 goes down in the closed position.
  • FIGS. 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.
  • FIGS. 7A to 7C thus show a configuration different from that represented in FIGS. 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)

Abstract

The invention relates to a switching device of the emergency stop type. This device comprises in particular a control assembly (1) and a switching assembly (2). The switching assembly (2) comprises an actuation switch of the normally-closed type and a detection switch of the normally-open type that are placed in series in an electric circuit. The switching assembly (2) includes in particular a mechanical device for monitoring that it is properly engaged on the control assembly (1) by opening the detection switch when the switching assembly (2) is mechanically disconnected from the control assembly (1).

Description

Dispositif d'arrêt d'urgence  Emergency stop device
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 notably known from 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 :  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:
- 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,  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 capable of cooperating with the first fixed actuating contact for controlling an electric circuit according to the position of the actuating member,
- 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,  a normally open type detection switch connected in series with the operation switch and comprising at least a first detection contact and a movable detection support carrying at least a second mobile detection contact with respect to the first detection contact and adapted to cooperate with the first detection contact for controlling the electric circuit,
- le premier contact de détection du commutateur de détection étant solidaire en mouvement du support mobile d'actionnement.  the first detection contact of the detection switch being integral in motion with the mobile operating 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. 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 feature, the first detection contact of the detection switch is made in the same plane as the second operating contact of the operating switch. 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. 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 : 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. 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:
- la figure 1 représente le dispositif d'arrêt d'urgence de l'invention,  FIG. 1 represents the emergency stop device of the 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,  FIGS. 2A to 5B show, in two perpendicular axial transverse sections, the switching assembly of the device in its different operating phases,
- la figure 6 représente, en perspective et en vue éclatée, l'ensemble de commutation de l'invention,  FIG. 6 represents, in perspective and in exploded view, the switching assembly of the 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.  - Figures 7A, 7B and 7C show 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.  Referring to Figure 1, the first assembly 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 (Figure 1), in which it is not depressed, leaving the electrical circuit closed and an actuating position in which it is depressed to open the electrical 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 (FIG. 6), for example made of plastic, having hooking means 21a, 21b to the first 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 second set 2 is well hooked on the first set 1 while keeping the electrical circuit open as the first set 1 is mechanically disconnected from the second set 2. The actuating switch comprises a set of normally closed operating 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 , 51 1 mobile. Les contacts de détection 301 , 31 1 correspondants aux deux contacts de détection 501 , 51 1 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 , 31 1 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 mobile detection medium 5 comprises a conductive piece 50 of electricity having a hat-shaped cross-section carrying at each end a movable detection contact 501, 51 1. The detection contacts 301, 31 1 corresponding to the two mobile detection contacts 501, 51 1 are said "fixed" detection contacts and are made on the mobile actuating support 3, so that they are integral in motion mobile movable support 3. These contacts 301, 31 1 are in fact fixed on the mobile operating support when the latter is in the closed position or in the open position but move with the mobile actuating support 3 when this one 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 detection pusher 9 arranged to act respectively on the mobile actuating support 3 and on the mobile detection medium 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 (FIG. 6) comprises an upper part consisting of a head 90 against which the actuating member 10 of the first assembly 1 can be supported, extended by an intermediate portion formed by two parallel uprights 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 movable detection support 5 and on the other hand against the head 90 of the detection pusher 9 The detection push-button 9 terminates in a lower part in which the opening spring 6 is housed, the latter being arranged between the movable actuating support 3 and the detection push-button 9. The detection push-button 9 and the mobile detection support 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 (FIG. 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 connection with FIGS. 2A to 5B, the operating principle of the invention is as follows:
Figures 2A et 2B  Figures 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 3B Figures 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 rencontre 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 contact block in contact with the opening spring 6. Under the action of the detection pusher 9 and the spring contact pressure 7, the mobile detection medium 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. Figures 4A et 4B The actuation switch and the sense switch are then closed, thus the emergency stop device is correctly assembled and ready for operation. Figures 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 5B Figures 5A and 5B
En continuant d'appuyer sur l'organe d'actionnement 10 du premier ensemble Continuing to press the actuating member 10 of the first set
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 rencontre du ressort principal 4. Le commutateur d'actionnement est donc ouvert. Le commutateur de détection reste pour sa part en position de fermeture. 1, it drives the assembly formed of the actuating pusher 8 and the detection pusher 9 towards the inside of the contact block. The actuating pusher 8 is then already resting on the movable actuating support 3 (see FIG. 3B), which then bears against the movable actuating support 3 and drives it to its position. opening against main spring 4. The actuating switch is thus open. The detection switch remains in the closed position.
Figures 7A, 7B et 7C Figures 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. 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. Figs. 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. FIGS. 7A to 7C thus show a configuration different from that represented in FIGS. 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. 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

REVENDICATIONS
1 . Ensemble de commutation (2) destiné à être assemblé sur un ensemble de commande (1 ) doté d'un organe d'actionnement (10) pouvant prendre une position de repos et une position d'actionnement, l'ensemble de commutation (2) comportant : 1. Switching assembly (2) to be assembled on a control assembly (1) having an actuating member (10) which can assume a rest position and an actuating position, the switching assembly (2) comprising:
- un commutateur d'actionnement du type normalement fermé comportant au moins un premier contact d'actionnement (200, 210) fixe et un support mobile d'actionnement (3) portant au moins un second contact d'actionnement (300, 310) mobile apte à coopérer avec le premier contact d'actionnement (200, 210) fixe pour commander un circuit électrique selon la position de l'organe d'actionnement (10),  a normally closed type actuating switch comprising at least a first fixed actuating contact (200, 210) and a movable actuating support (3) carrying at least a second moving actuating contact (300, 310). adapted to cooperate with the first fixed actuating contact (200, 210) for controlling an electric circuit according to the position of the actuating member (10),
- 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 (301 , 31 1 ) et un support mobile de détection (5) portant au moins un second contact de détection (501 , 51 1 ) mobile par rapport au premier contact de détection (301 , 31 1 ) et apte à coopérer avec le premier contact de détection (301 , 31 1 ) pour commander le circuit électrique,  a normally open type detection switch connected in series with the operation switch and comprising at least a first detection contact (301, 31 1) and a mobile detection medium (5) carrying at least a second detection contact (501, 51 1) movable with respect to the first detection contact (301, 31 1) and able to cooperate with the first detection contact (301, 31 1) for controlling the electric circuit,
caractérisé en ce que :  characterized in that
- le premier contact de détection (301 , 31 1 ) du commutateur de détection est solidaire en mouvement du support mobile d'actionnement (3).  - The first detection contact (301, 31 1) of the detection switch is integral in motion of the movable actuating support (3).
2. Ensemble de commutation selon la revendication 1 , caractérisé en ce que le commutateur de détection est agencé pour être ouvert lorsque l'ensemble de commande est déconnecté mécaniquement de l'ensemble de commutation.  Switching assembly according to claim 1, characterized in that the detection switch is arranged to be open when the control unit is mechanically disconnected from the switching unit.
3. Ensemble de commutation selon la revendication 1 ou 2, caractérisé en ce que le premier contact de détection (301 , 31 1 ) du commutateur de détection est réalisé sur le support mobile d'actionnement (3).  3. switching assembly according to claim 1 or 2, characterized in that the first detection contact (301, 31 1) of the detection switch is formed on the movable actuating support (3).
4. Ensemble de commutation selon l'une des revendications 1 à 3, caractérisé en ce que le premier contact de détection (301 , 31 1 ) du commutateur de détection est réalisé dans le même plan que le second contact (300, 310) d'actionnement du commutateur d'actionnement. 4. Switching assembly according to one of claims 1 to 3, characterized in that the first detection contact (301, 31 1) of the detection switch is formed in the same plane as the second contact (300, 310) d actuation of the actuating switch.
5. Ensemble de commutation selon l'une des revendications 1 à 4, caractérisé en ce que le commutateur de détection comporte deux contacts de détection (501 , 51 1 ) mobiles aptes à coopérer chacun avec un contact de détection (301 , 31 1 ) distinct réalisé sur le support mobile d'actionnement (3) et en ce que le support mobile d'actionnement (3) comporte deux demi-plaques (30, 31 ) conductrices de l'électricité assemblées sur une pièce (32) en matériau isolant et portant chacune un contact de détection (301 , 31 1 ) du commutateur de détection. 5. switching assembly according to one of claims 1 to 4, characterized in that the detection switch comprises two detecting contacts (501, 51 1) movable each adapted to cooperate with a detection contact (301, 31 1). characterized in that the movable actuating support (3) comprises two electrically conductive half-plates (30, 31) assembled on a piece (32) made of insulating material. and each carrying a detection contact (301, 31 1) of the detection switch.
6. Ensemble de commutation selon la revendication 5, caractérisé en ce que le support mobile de détection (5) comporte une pièce conductrice (50) comportant les deux contacts de détection (501 , 51 1 ) mobiles.  6. switching assembly according to claim 5, characterized in that the mobile detection medium (5) comprises a conductive part (50) having the two detecting contacts (501, 51 1) movable.
7. Ensemble de commutation selon l'une des revendications 1 à 6, caractérisé en ce qu'il comporte un poussoir d'actionnement (8) destiné à agir sur le support mobile d'actionnement (3) et actionnable par l'organe d'actionnement (10) de l'ensemble de commande (1 ) et un poussoir de détection (9) destiné à agir sur le support mobile de détection (5).  7. switching assembly according to one of claims 1 to 6, characterized in that it comprises an actuating pusher (8) for acting on the movable actuating support (3) and actuatable by the body d actuating (10) the control assembly (1) and a sensing pusher (9) for acting on the movable sensing support (5).
8. Ensemble de commutation selon la revendication 7, caractérisé en ce que le poussoir d'actionnement (8) et le poussoir de détection (9) sont imbriqués et coaxiaux.  8. switching assembly according to claim 7, characterized in that the actuating pusher (8) and the sensing pusher (9) are imbricated and coaxial.
9. Ensemble de commutation selon la revendication 7 ou 8, caractérisé en ce qu'il comporte un ressort de pression de contacts (7) positionné entre le poussoir de détection (9) et le support mobile de détection (5).  9. switching assembly according to claim 7 or 8, characterized in that it comprises a contact pressure spring (7) positioned between the sensing pusher (9) and the mobile detection medium (5).
10. Ensemble de commutation selon l'une des revendications 7 à 9, caractérisé en ce qu'il comporte un ressort d'ouverture (6) positionné entre le poussoir de détection (9) et le support mobile d'actionnement (3).  10. Switching assembly according to one of claims 7 to 9, characterized in that it comprises an opening spring (6) positioned between the sensing pusher (9) and the movable actuating support (3).
1 1 . Ensemble de commutation selon l'une des revendications 7 à 10, caractérisé en ce qu'il comporte un boîtier (20) et en ce qu'il comporte un ressort principal (4) positionné entre le boîtier (20) et le support mobile d'actionnement (3).  1 1. 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 support of actuation (3).
12. Ensemble de commutation selon l'une des revendications 1 à 1 1 , caractérisé en ce qu'il comporte des moyens de butée (220) agencés pour ouvrir le commutateur de détection lors de l'ouverture du commutateur d'actionnement. 12. switching assembly according to one of claims 1 to 1 1, characterized in that it comprises stop means (220) arranged to open the detection switch when opening the actuating switch.
13. Dispositif de commutation de type arrêt d'urgence comportant un ensemble de commande (1 ) destiné à être connecté mécaniquement sur un ensemble de commutation (2) tel que défini dans l'une des revendications 1 à 12. 13. An emergency stop type switching device comprising a control assembly (1) for mechanical connection to a switching assembly (2) as defined in one of claims 1 to 12.
PCT/EP2011/055324 2010-04-29 2011-04-06 Emergency stop device WO2011134766A1 (en)

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EP11713751.3A EP2564408B1 (en) 2010-04-29 2011-04-06 Emergency stop device
CN201180014888.9A CN102804304B (en) 2010-04-29 2011-04-06 Emergency braking device

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FR1053328 2010-04-29
FR1053328A FR2959590B1 (en) 2010-04-29 2010-04-29 EMERGENCY STOP DEVICE

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EP2564408B1 (en) 2014-12-03
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CN102804304B (en) 2015-09-16
CN102804304A (en) 2012-11-28
FR2959590B1 (en) 2012-04-20

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