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EP2332158B1 - Emergency stop device - Google Patents

Emergency stop device Download PDF

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Publication number
EP2332158B1
EP2332158B1 EP09783627.4A EP09783627A EP2332158B1 EP 2332158 B1 EP2332158 B1 EP 2332158B1 EP 09783627 A EP09783627 A EP 09783627A EP 2332158 B1 EP2332158 B1 EP 2332158B1
Authority
EP
European Patent Office
Prior art keywords
assembly
movable bridge
movable
spring
open
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
Application number
EP09783627.4A
Other languages
German (de)
French (fr)
Other versions
EP2332158A1 (en
Inventor
Francis Chauvet
Dominique Benni
Bertrand Fruchard
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Schneider Electric Industries SAS
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
Publication of EP2332158A1 publication Critical patent/EP2332158A1/en
Application granted granted Critical
Publication of EP2332158B1 publication Critical patent/EP2332158B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
    • H01H1/20—Bridging contacts
    • H01H1/2041—Rotating bridge
    • H01H1/205—Details concerning the elastic mounting of the rotating bridge in the rotor
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
    • H01H1/20—Bridging contacts
    • 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
    • H01H13/02—Details
    • H01H13/12—Movable parts; Contacts mounted thereon
    • H01H13/14—Operating parts, e.g. push-button
    • 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
    • H01H13/62—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 the contact returning to its original state upon manual release of a latch
    • 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
    • H01H3/14—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch adapted for operation by a part of the human body other than the hand, e.g. by foot
    • H01H3/141—Cushion or mat switches
    • H01H2003/145—Cushion or mat switches provisions for avoiding closure or contact damage during manufacturing or mounting
    • 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
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/20—Interlocking, locking, or latching mechanisms
    • H01H9/22—Interlocking, locking, or latching mechanisms for interlocking between casing, cover, or protective shutter and mechanism for operating contacts

Definitions

  • the present invention relates to a switching device.
  • the invention more particularly relates to an emergency stop type switching device.
  • an emergency stop device comprises a first assembly carrying the actuating member and a second assembly consisting of a contact block intended to be mounted on the first assembly.
  • the contact block comprises a movable bridge supporting movable contacts actuated by the actuating member relative to fixed contacts between a closed position and an open position to respectively close or open an electrical circuit.
  • the contacts are of normally closed type.
  • the first set and the second set are mounted mechanically on either side of a wall.
  • the contact block is therefore invisible to the user. It is therefore impossible for the user to know permanently if the first set is mounted on the second set. 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, we must ensure that the first set is well hooked to the second set.
  • the object of the invention is to propose a new solution to ensure that the first set is mounted on the second set.
  • This solution is simple in operation and is made in a limited space.
  • the second assembly comprises actuating means for acting on the movable bridge on either side of its axis of rotation and in opposite directions.
  • actuating means are for example included in a pusher operable between three positions corresponding to the three positions of the movable bridge.
  • the actuating means comprise for example two cams made on the pusher and between which is interposed the movable bridge.
  • the second assembly comprises a first spring biasing the pusher in translation.
  • This first spring is for example helical type.
  • the second assembly comprises a second spring biasing the movable bridge towards its closed position.
  • This second spring is for example blade type.
  • the movable bridge comprises two movable contacts disposed on either side of the axis of rotation and on two opposite faces of a support plate rotatably mounted around the axis of rotation.
  • the three positions taken by the movable bridge are distinct, the third position taken by the movable bridge being a second open position of the electrical circuit.
  • the switching device formed by the first set and the second set is for example an emergency stop device.
  • the invention compared to the prior art, the invention therefore has the advantage of using the same mobile bridge to perform both the monitoring function of the assembly of the first set on the second set and the normal function. of the emergency stop type switching device. Therefore, even if the fixed and mobile are welded together, the actuation of the actuating member will come to open the contacts.
  • the two functions being fulfilled by means of two distinct movable bridges, if the normally open contacts used for monitoring the mounting of the head are welded together, the actuation of the body Actuation can not be used to separate them. The assembly monitoring function of the first set on the second set can no longer be ensured.
  • the invention relates to a switching device and more particularly to an emergency stop device, also called a punch switch.
  • an emergency stop type switching device comprises two distinct sets 1, 2.
  • the first assembly 1 comprises an actuating member 10 intended to be depressed in an emergency by the operator along an axis (X) to open an electrical circuit.
  • the actuating member 10 can thus take a rest position ( figure 1 B) in which it is not depressed leaving the electrical circuit closed and an actuating position ( Figure 1 C) in which it is depressed to open the electrical circuit.
  • the second set 2 is a contact block for controlling the electrical circuit (not shown).
  • a contact block generally comprises a housing 20 containing a pusher 21 ( figure 3 ) on which acts the actuating member 10 and a movable bridge 22 carrying movable contacts 221, said movable bridge 22 being actuated in motion relative to fixed contacts 201 between a closed position and an open position for respectively closing or opening the electric circuit according to the position of the actuating member 10.
  • the movable bridge 22 When the actuating member 10 is in the rest position, the movable bridge 22 is in the closed position of the electric circuit ( Figure 1 B) and when the actuating member 10 is in the actuating position, the movable bridge 22 is in the open position of the electric circuit ( Figure 1 C) .
  • the switching device of the invention further comprises means for monitoring that the second set 2 is hooked on the first set 1. These means consist in keeping the electric circuit open as the first set 1 is mechanically disconnected from the second together 2.
  • the movable bridge 22 of the second assembly 2 is of rotary type and is operable in rotation about an axis of rotation (A) included in a plane perpendicular to the actuation axis (X) of the actuating member 10.
  • the movable bridge 22 can take three distinct positions around its axis of rotation ( FIGS. 2A to 2C ).
  • the movable bridge 22 can thus take said closed position ( Figure 1 B) when the first set 1 is correctly mounted on the second set 2 and the actuating member 10 is in the rest position, said open position ( Figure 1 C) when the first set 1 is correctly mounted on the second set 2 and the actuating member 10 is in the actuating position and a third position ( Figure 1A ) which is a second open position in which the first set 1 is mechanically disconnected from the second set 2.
  • the electric circuit remains open if the first set 1 is not correctly mounted on the second one 2.
  • the movable bridge 22 is moved into its closed position and the emergency stop device can thus fulfill its function.
  • the movable bridge 22 comprises a plate 220 rotatably mounted on a support 23, said plate 220 carrying two opposite faces each supporting a movable contact 221, the two movable contacts 221 being arranged on each side on either side. of the axis of rotation (A). Vis-à-vis each movable contact 221, the housing 20 of the second assembly 2 encloses a fixed contact 201 connected to the circuit electric to order.
  • the movable bridge 22 is mounted on a spring, for example of the blade type 24, urging it about its axis of rotation (A) counterclockwise (S1) towards its closed position, said spring 24 being housed between the plate 220 and the support 23 of the movable bridge.
  • the pusher 21 is also mounted on a spring 25, for example of helicoidal type, housed in the bottom of the housing 20 of the second assembly 2 and urging the pusher 21 in translation along the axis (X) against the movement of the actuating member 10 when the two sets 1, 2 are hooked. With a slide, the pusher 21 is guided in translation along the axis (X) in a groove formed on the housing 20 of the second assembly 2.
  • a spring 25 for example of helicoidal type
  • the second assembly 2 further comprises actuating means for actuating the movable bridge 22 in rotation between its positions by acting on the movable bridge on either side of its axis of rotation (A). , in directions parallel to the axis (X) and in opposite directions.
  • actuation means comprise two cams 210, 211 ( figure 3 ) formed on the pusher 21.
  • the movable bridge is interposed between the two cams 210, 211 of the pusher 21 so that a first cam 210 of the pusher is capable of pressing on a first face of the plate 220 of the movable bridge, one side of the axis of rotation (A), to drive the latter in rotation in the clockwise direction (S2) and that a second cam 211 of the pusher is capable of pressing on the opposite face of the plate 220 of the movable bridge 22, on the other side of the axis of rotation (A), for driving the latter in rotation clockwise (S2).
  • the two cams 210, 211 thus both drive the mobile bridge in rotation in the clockwise direction (S2), but, depending on the position of the pusher 21, they act in two directions substantially parallel to the axis (X) on both opposite sides of the plate 220 of the movable bridge 22 and on either side of the axis of rotation (A) of the movable bridge 22, so as to give it two distinct positions ( Figures 2A and 2C ).
  • the solution of the invention is particularly simple inexpensive and of limited size.

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

Description

La présente invention se rapporte à un dispositif de commutation. L'invention concerne plus particulièrement un dispositif de commutation de type arrêt d'urgence.The present invention relates to a switching device. The invention more particularly relates to an emergency stop type switching device.

En règle générale, un dispositif d'arrêt d'urgence comporte un premier ensemble portant l'organe d'actionnement et un second ensemble constitué d'un bloc de contact destiné à être monté sur le premier ensemble. Le bloc de contact comporte un pont mobile supportant des contacts mobiles actionnés par l'organe d'actionnement par rapport à des contacts fixes entre une position de fermeture et une position d'ouverture pour respectivement fermer ou ouvrir un circuit électrique. Dans un dispositif d'arrêt d'urgence, les contacts sont de type normalement fermé.As a rule, an emergency stop device comprises a first assembly carrying the actuating member and a second assembly consisting of a contact block intended to be mounted on the first assembly. The contact block comprises a movable bridge supporting movable contacts actuated by the actuating member relative to fixed contacts between a closed position and an open position to respectively close or open an electrical circuit. In an emergency stop device, the contacts are of normally closed type.

Lors du montage du dispositif, le premier ensemble et le second ensemble sont montés mécaniquement de part et d'autre d'une paroi. Le bloc de contact est donc invisible à l'utilisateur. Il est donc impossible pour l'utilisateur de savoir en permanence si le premier ensemble est bien monté sur le second ensemble. 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 le premier ensemble est bien accroché au second ensemble.When mounting the device, the first set and the second set are mounted mechanically on either side of a wall. The contact block is therefore invisible to the user. It is therefore impossible for the user to know permanently if the first set is mounted on the second set. 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, we must ensure that the first set is well hooked to the second set.

Il est notamment connu des brevets US 6,198,058 , EP 1 801 830 A1 et DE4101493 des dispositifs permettant de surveiller l'accrochage du premier ensemble sur le second ensemble. Dans ces trois brevets, un jeu de contacts normalement fermés et un jeu de contacts normalement ouverts sont mis en série sur le circuit électrique à commander. Lors du montage du premier ensemble sur le second ensemble les contacts normalement ouverts se ferment, permettant d'assurer que les deux ensembles sont biens montés. 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 , EP 1 801 830 A1 and DE4101493 devices for monitoring the attachment of the first set on the second set. In these three 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. When mounting the first set on the second set normally open contacts close, ensuring that both sets are properly mounted. In normal operation, when pressing on the actuator, the normally closed contacts open.

Le but de l'invention est de proposer une nouvelle solution permettant de s'assurer que le premier ensemble est bien monté sur le second ensemble. 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 first set is mounted on the second set. This solution is simple in operation and is made in a limited space.

Ce but est atteint par un dispositif de commutation qui comporte :

  • un premier ensemble comportant un organe d'actionnement pouvant prendre une position de repos et une position d'actionnement,
  • un second ensemble monté sur le premier ensemble et comportant un pont mobile portant des contacts mobiles actionnés par rapport à des contacts fixes entre une position d'ouverture et une position de fermeture pour respectivement ouvrir ou fermer un circuit électrique selon la position de l'organe d'actionnement,
  • le pont mobile étant actionnable en rotation autour d'un axe de rotation et pouvant prendre une troisième position pour ouvrir le circuit électrique lorsque le premier ensemble est déconnecté mécaniquement du second ensemble.
This object is achieved by a switching device which comprises:
  • a first assembly comprising an actuating member that can assume a rest position and an actuating position,
  • a second assembly mounted on the first assembly and comprising a movable bridge carrying movable contacts actuated with respect to fixed contacts between an open position and a closed position for respectively opening or closing an electrical circuit according to the position of the organ actuating,
  • the movable bridge being operable in rotation about an axis of rotation and being able to take a third position to open the electric circuit when the first assembly is mechanically disconnected from the second assembly.

Selon l'invention, le second ensemble comporte des moyens d'actionnement pour agir sur le pont mobile de part et d'autre de son axe de rotation et dans des sens opposés. Ces moyens d'actionnement sont par exemple inclus dans un poussoir actionnable entre trois positions correspondant aux trois positions du pont mobile.According to the invention, the second assembly comprises actuating means for acting on the movable bridge on either side of its axis of rotation and in opposite directions. These actuating means are for example included in a pusher operable between three positions corresponding to the three positions of the movable bridge.

Selon une particularité de l'invention, les moyens d'actionnement comportent par exemple deux cames réalisées sur le poussoir et entre lesquelles est intercalé le pont mobile.According to a feature of the invention, the actuating means comprise for example two cams made on the pusher and between which is interposed the movable bridge.

Selon une autre particularité de l'invention, le second ensemble comporte un premier ressort sollicitant le poussoir en translation. Ce premier ressort est par exemple de type hélicoïdal.According to another feature of the invention, the second assembly comprises a first spring biasing the pusher in translation. This first spring is for example helical type.

Selon une autre particularité de l'invention, le second ensemble comporte un second ressort sollicitant le pont mobile vers sa position de fermeture. Ce second ressort est par exemple de type à lame.According to another feature of the invention, the second assembly comprises a second spring biasing the movable bridge towards its closed position. This second spring is for example blade type.

Selon une autre particularité, le pont mobile comporte deux contacts mobiles disposés de part et d'autre de l'axe de rotation et sur deux faces opposées d'une plaque support montée en rotation autour de l'axe de rotation.According to another feature, the movable bridge comprises two movable contacts disposed on either side of the axis of rotation and on two opposite faces of a support plate rotatably mounted around the axis of rotation.

Selon l'invention, les trois positions prises par le pont mobile sont distinctes, la troisième position prise par le pont mobile étant une seconde position d'ouverture du circuit électrique.According to the invention, the three positions taken by the movable bridge are distinct, the third position taken by the movable bridge being a second open position of the electrical circuit.

Le dispositif de commutation formé par le premier ensemble et le second ensemble est par exemple un dispositif d'arrêt d'urgence.The switching device formed by the first set and the second set is for example an emergency stop device.

Selon l'invention, par rapport à l'art antérieur, l'invention présente donc l'avantage d'utiliser le même pont mobile pour effectuer à la fois la fonction de surveillance du montage du premier ensemble sur le second ensemble et la fonction normale du dispositif de commutation de type arrêt d'urgence. Par conséquent, même si les contacts fixes et mobiles sont soudés entre eux, l'actionnement de l'organe d'actionnement permettra de venir ouvrir les contacts. En revanche, dans l'art antérieur, les deux fonctions étant remplies à l'aide de deux ponts mobiles distincts, si les contacts normalement ouverts servant à la surveillance du montage de la tête sont soudés entre eux, l'actionnement de l'organe d'actionnement ne peut pas permettre de les séparer. La fonction de surveillance de montage du premier ensemble sur le second ensemble ne peut donc plus être assurée.According to the invention, compared to the prior art, the invention therefore has the advantage of using the same mobile bridge to perform both the monitoring function of the assembly of the first set on the second set and the normal function. of the emergency stop type switching device. Therefore, even if the fixed and mobile are welded together, the actuation of the actuating member will come to open the contacts. On the other hand, in the prior art, the two functions being fulfilled by means of two distinct movable bridges, if the normally open contacts used for monitoring the mounting of the head are welded together, the actuation of the body Actuation can not be used to separate them. The assembly monitoring function of the first set on the second set can no longer be ensured.

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 1A représente les deux ensembles séparés du dispositif de commutation de l'invention,
  • la figure 1B représente le premier ensemble du dispositif de commutation correctement monté sur le second ensemble, l'organe d'actionnement étant en position de repos,
  • la figure 1C représente le premier ensemble du dispositif de commutation correctement monté sur le second ensemble, l'organe d'actionnement étant en position d'actionnement,
  • Les figures 2A à 2C montrent plus en détail le second ensemble dans les trois états définis sur les figures 1A à 1C,
  • la figure 3 montre en perspective le poussoir utilisé dans le second ensemble du dispositif.
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 1A represents the two separate sets of the switching device of the invention,
  • the Figure 1B represents the first set of the switching device correctly mounted on the second set, the actuating member being in the rest position,
  • the figure 1C represents the first set of the switching device correctly mounted on the second set, the actuating member being in the actuating position,
  • The FIGS. 2A to 2C show in more detail the second set in the three states defined on the Figures 1A to 1C ,
  • the figure 3 shows in perspective the pusher used in the second set of the device.

Sur les dessins annexés, la figure 1 regroupe les figures 1A à 1C.In the accompanying drawings, the figure 1 groups together Figures 1A to 1C .

L'invention concerne un dispositif de commutation et plus particulièrement un dispositif d'arrêt d'urgence, appelé également interrupteur coup de poing.The invention relates to a switching device and more particularly to an emergency stop device, also called a punch switch.

De manière connue, un dispositif de commutation de type arrêt d'urgence comporte deux ensembles 1, 2 distincts.In known manner, an emergency stop type switching device comprises two distinct sets 1, 2.

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

Le second ensemble 2 est un bloc de contact destiné à la commande du circuit électrique (non représenté). Un bloc de contact comporte en règle générale un boîtier 20 contenant un poussoir 21 (figure 3) sur lequel agit l'organe d'actionnement 10 et un pont mobile 22 portant des contacts mobiles 221, ledit pont mobile 22 étant actionné en mouvement par rapport à des contacts fixes 201 entre une position de fermeture et une position d'ouverture pour respectivement fermer ou ouvrir le circuit électrique selon la position de l'organe d'actionnement 10. Lorsque l'organe d'actionnement 10 est en position de repos, le pont mobile 22 est en position de fermeture du circuit électrique (figure 1 B) et lorsque l'organe d'actionnement 10 est en position d'actionnement, le pont mobile 22 est en position d'ouverture du circuit électrique (figure 1 C).The second set 2 is a contact block for controlling the electrical circuit (not shown). A contact block generally comprises a housing 20 containing a pusher 21 ( figure 3 ) on which acts the actuating member 10 and a movable bridge 22 carrying movable contacts 221, said movable bridge 22 being actuated in motion relative to fixed contacts 201 between a closed position and an open position for respectively closing or opening the electric circuit according to the position of the actuating member 10. When the actuating member 10 is in the rest position, the movable bridge 22 is in the closed position of the electric circuit ( Figure 1 B) and when the actuating member 10 is in the actuating position, the movable bridge 22 is in the open position of the electric circuit ( Figure 1 C) .

Le dispositif de commutation de l'invention comporte en outre des moyens permettant de surveiller que le second ensemble 2 est bien accroché sur le premier ensemble 1. Ces moyens consistent à maintenir le circuit électrique ouvert tant que le premier ensemble 1 est déconnecté mécaniquement du second ensemble 2.The switching device of the invention further comprises means for monitoring that the second set 2 is hooked on the first set 1. These means consist in keeping the electric circuit open as the first set 1 is mechanically disconnected from the second together 2.

Selon l'invention, le pont mobile 22 du second ensemble 2 est de type rotatif et est actionnable en rotation autour d'un axe de rotation (A) compris dans un plan perpendiculaire à l'axe d'actionnement (X) de l'organe d'actionnement 10. Selon l'invention, le pont mobile 22 peut prendre trois positions distinctes autour de son axe de rotation (figures 2A à 2C). Le pont mobile 22 peut ainsi prendre ladite position de fermeture (figure 1 B) lorsque le premier ensemble 1 est correctement monté sur le second ensemble 2 et que l'organe d'actionnement 10 est en position de repos, ladite position d'ouverture (figure 1 C) lorsque le premier ensemble 1 est correctement monté sur le second ensemble 2 et que l'organe d'actionnement 10 est en position d'actionnement et une troisième position (figure 1A) qui est une seconde position d'ouverture dans laquelle le premier ensemble 1 est déconnecté mécaniquement du second ensemble 2. Ainsi, grâce à cette troisième position, le circuit électrique reste ouvert si le premier ensemble 1 n'est pas correctement monté sur le second ensemble 2. Lorsque le premier ensemble 1 est correctement monté sur le second ensemble 2, le pont mobile 22 est déplacé dans sa position de fermeture et le dispositif d'arrêt d'urgence peut ainsi remplir sa fonction.According to the invention, the movable bridge 22 of the second assembly 2 is of rotary type and is operable in rotation about an axis of rotation (A) included in a plane perpendicular to the actuation axis (X) of the actuating member 10. According to the invention, the movable bridge 22 can take three distinct positions around its axis of rotation ( FIGS. 2A to 2C ). The movable bridge 22 can thus take said closed position ( Figure 1 B) when the first set 1 is correctly mounted on the second set 2 and the actuating member 10 is in the rest position, said open position ( Figure 1 C) when the first set 1 is correctly mounted on the second set 2 and the actuating member 10 is in the actuating position and a third position ( Figure 1A ) which is a second open position in which the first set 1 is mechanically disconnected from the second set 2. Thus, thanks to this third position, the electric circuit remains open if the first set 1 is not correctly mounted on the second one 2. When the first assembly 1 is correctly mounted on the second assembly 2, the movable bridge 22 is moved into its closed position and the emergency stop device can thus fulfill its function.

Plus précisément, le pont mobile 22 comporte une plaque 220 montée en rotation sur un support 23, ladite plaque 220 portant deux faces opposées supportant chacune un contact mobile 221, les deux contacts mobiles 221 étant disposés sur chacune des faces de part et d'autre de l'axe de rotation (A). En vis-à-vis de chaque contact mobile 221, le boîtier 20 du second ensemble 2 renferme un contact fixe 201 connecté au circuit électrique à commander. Le pont mobile 22 est monté sur un ressort, par exemple de type à lame 24, le sollicitant autour de son axe de rotation (A) dans le sens antihoraire (S1) vers sa position de fermeture, ledit ressort 24 étant logé entre la plaque 220 et le support 23 du pont mobile.More specifically, the movable bridge 22 comprises a plate 220 rotatably mounted on a support 23, said plate 220 carrying two opposite faces each supporting a movable contact 221, the two movable contacts 221 being arranged on each side on either side. of the axis of rotation (A). Vis-à-vis each movable contact 221, the housing 20 of the second assembly 2 encloses a fixed contact 201 connected to the circuit electric to order. The movable bridge 22 is mounted on a spring, for example of the blade type 24, urging it about its axis of rotation (A) counterclockwise (S1) towards its closed position, said spring 24 being housed between the plate 220 and the support 23 of the movable bridge.

Le poussoir 21 est également monté sur un ressort 25, par exemple de type hélicoïdal, logé dans le fond du boîtier 20 du second ensemble 2 et sollicitant le poussoir 21 en translation suivant l'axe (X) à l'encontre du mouvement de l'organe d'actionnement 10 lorsque les deux ensembles 1, 2 sont accrochés. Grâce à une glissière, le poussoir 21 est guidé en translation suivant l'axe (X) dans une rainure réalisée sur le boîtier 20 du second ensemble 2.The pusher 21 is also mounted on a spring 25, for example of helicoidal type, housed in the bottom of the housing 20 of the second assembly 2 and urging the pusher 21 in translation along the axis (X) against the movement of the actuating member 10 when the two sets 1, 2 are hooked. With a slide, the pusher 21 is guided in translation along the axis (X) in a groove formed on the housing 20 of the second assembly 2.

Selon l'invention, le second ensemble 2 comporte en outre des moyens d'actionnement permettant d'actionner le pont mobile 22 en rotation entre ses positions en agissant sur le pont mobile de part et d'autre de son axe de rotation (A), suivant des directions parallèles à l'axe (X) et dans des sens opposés. Ces moyens d'actionnement comportent deux cames 210, 211 (figure 3) formées sur le poussoir 21. Le pont mobile est intercalé entre les deux cames 210, 211 du poussoir 21 de sorte qu'une première came 210 du poussoir est susceptible d'appuyer sur une première face de la plaque 220 du pont mobile, d'un côté de l'axe de rotation (A), pour entraîner celui-ci en rotation dans le sens horaire (S2) et qu'une deuxième came 211 du poussoir est susceptible d'appuyer sur la face opposée de la plaque 220 du pont mobile 22, de l'autre côté de l'axe de rotation (A), pour entraîner celui-ci en rotation dans le sens horaire (S2). Les deux cames 210, 211 entraînent donc toutes les deux le pont mobile en rotation dans le sens horaire (S2), mais, selon la position du poussoir 21, elles agissent suivant deux directions sensiblement parallèles à l'axe (X) sur les deux faces opposées de la plaque 220 du pont mobile 22 et de part et d'autre de l'axe de rotation (A) du pont mobile 22, de manière à conférer à celui-ci deux positions distinctes (figures 2A et 2C).According to the invention, the second assembly 2 further comprises actuating means for actuating the movable bridge 22 in rotation between its positions by acting on the movable bridge on either side of its axis of rotation (A). , in directions parallel to the axis (X) and in opposite directions. These actuation means comprise two cams 210, 211 ( figure 3 ) formed on the pusher 21. The movable bridge is interposed between the two cams 210, 211 of the pusher 21 so that a first cam 210 of the pusher is capable of pressing on a first face of the plate 220 of the movable bridge, one side of the axis of rotation (A), to drive the latter in rotation in the clockwise direction (S2) and that a second cam 211 of the pusher is capable of pressing on the opposite face of the plate 220 of the movable bridge 22, on the other side of the axis of rotation (A), for driving the latter in rotation clockwise (S2). The two cams 210, 211 thus both drive the mobile bridge in rotation in the clockwise direction (S2), but, depending on the position of the pusher 21, they act in two directions substantially parallel to the axis (X) on both opposite sides of the plate 220 of the movable bridge 22 and on either side of the axis of rotation (A) of the movable bridge 22, so as to give it two distinct positions ( Figures 2A and 2C ).

Selon l'invention, les trois positions distinctes prises par le pont mobile 22 correspondent ainsi à trois positions prises par le poussoir 21. Les trois positions sont explicitées ci-dessous :

  • Lorsque le premier ensemble 1 est déconnecté mécaniquement du second ensemble 2, le poussoir 21 est sollicité vers l'extérieur du boîtier 20 par le ressort hélicoïdal 25. La première came 210 du poussoir appuie alors d'un côté de l'axe de rotation (A) et sur la première face de la plaque 220 du pont mobile 22 pour l'entraîner en rotation dans le sens horaire (S2) à l'encontre de son ressort à lame 24 et ainsi lui faire prendre la troisième position, laissant le circuit électrique ouvert lorsque le premier ensemble 1 est déconnecté mécaniquement du second ensemble 2 (figure 2A).
  • Lorsque le premier ensemble 1 est correctement monté sur le second ensemble 2, l'organe d'actionnement 10 en position de repos appuie alors sur le poussoir 21 de manière à comprimer son ressort hélicoïdal 25. Le poussoir 21 n'est donc plus en appui contre le pont mobile 22 par la première came 210. Le pont mobile 22 est alors sollicité en rotation dans le sens antihoraire (S1) par son seul ressort à lame 24 vers sa position de fermeture du circuit (figure 2B).
  • Lorsque le premier ensemble 1 est correctement monté sur le second ensemble 2 et lorsque l'organe d'actionnement 10 est actionné vers sa position d'actionnement, celui-ci agit sur le poussoir 21 et comprime le ressort hélicoïdal 25 vers le fond du boîtier 20. La seconde came 211 du poussoir 21 appuie alors sur le pont mobile 22 de l'autre côté de son axe de rotation (A) et sur la seconde face de la plaque 220 du pont mobile de manière à entraîner ce dernier en rotation dans le sens horaire (S1) et ainsi lui faire prendre sa position d'ouverture du circuit électrique (figure 2C).
According to the invention, the three distinct positions taken by the movable bridge 22 thus correspond to three positions taken by the pusher 21. The three positions are explained below:
  • When the first assembly 1 is mechanically disconnected from the second assembly 2, the pusher 21 is urged towards the outside of the housing 20 by the helical spring 25. The first cam 210 of the pusher then presses on one side of the axis of rotation ( A) and on the first face of the plate 220 of the movable bridge 22 to rotate it clockwise (S2) against its leaf spring 24 and thus make it take the third position, leaving the electrical circuit open when the first set 1 is mechanically disconnected from the second set 2 ( Figure 2A ).
  • When the first assembly 1 is correctly mounted on the second assembly 2, the actuating member 10 in the rest position then presses on the pusher 21 so as to compress its helical spring 25. The pusher 21 is no longer supported against the movable bridge 22 by the first cam 210. The movable bridge 22 is then urged in counterclockwise rotation (S1) by its single leaf spring 24 towards its closed position of the circuit ( Figure 2B ).
  • When the first assembly 1 is correctly mounted on the second assembly 2 and when the actuating member 10 is actuated towards its actuating position, the latter acts on the pusher 21 and compresses the coil spring 25 towards the bottom of the housing 20. The second cam 211 of the pusher 21 then presses on the movable bridge 22 on the other side of its axis of rotation (A) and on the second face of the plate 220 of the movable bridge so as to drive the latter in rotation in clockwise (S1) and thus make him take his position of opening of the electric circuit ( Figure 2C ).

Ainsi, en utilisant un seul pont mobile pour assurer à la fois la fonction normale du dispositif d'arrêt d'urgence et la fonction de surveillance de l'assemblage entre les deux ensembles 1, 2, la solution de l'invention est particulièrement simple, peu couteuse et d'un encombrement limité.Thus, by using a single moving bridge to ensure both the normal function of the emergency stop device and the monitoring function of the assembly between the two sets 1, 2, the solution of the invention is particularly simple inexpensive and of limited size.

Claims (12)

  1. A switching device comprising:
    - a first assembly (1) comprising an actuation member (10) that is able to take a rest position and an actuation position,
    - a second assembly (2) mounted on the first assembly (1) and comprising a movable bridge (22) supporting movable contacts (221) actuated relative to fixed contacts (201) between an open position and a closed position in order respectively to open or close an electric circuit depending on the position of the actuation member (10),
    characterized in that:
    - the movable bridge (22) can be rotated about a rotation axis (A) and can take a third position in order to open the electric circuit when the first assembly (1) is mechanically disconnected from the second assembly (2).
  2. The device as claimed in claim 1, characterized in that the second assembly (2) comprises actuation means for acting on the movable bridge (22) on either side of its rotation axis (A) and in opposite directions.
  3. The device as claimed in claim 2, characterized in that the actuation means are included in a push-button (21) that can be actuated between three positions corresponding to the three positions of the movable bridge (22).
  4. The device as claimed in claim 3, characterized in that the actuation means comprise two cams (210, 211) made on the push-button and between which the movable bridge (22) is inserted.
  5. The device as claimed in claim 3 or 4, characterized in that the second assembly (2) comprises a first spring (25) forcing the push-button (21) in translation.
  6. The device as claimed in claim 5, characterized in that the first spring (25) is of the helical type.
  7. The device as claimed in claim 6, characterized in that the second assembly (2) comprises a second spring (24) forcing the movable bridge (22) to its closed position.
  8. The device as claimed in claim 7, characterized in that the second spring (24) is of the leaf type.
  9. The device as claimed in one of claims 1 to 8, characterized in that the movable bridge (22) comprises two movable contacts (221) placed on either side of the rotation axis (A) and on two opposite faces of a support plate (220) mounted so as to rotate about the rotation axis (A).
  10. The device as claimed in one of claims 1 to 9, characterized in that the three positions taken by the movable bridge (22) are distinct.
  11. The device as claimed in claim 10, characterized in that the third position taken by the movable bridge (22) is a second open position of the electric circuit.
  12. The device as claimed in one of claims 1 to 11, characterized in that the first assembly and the second assembly form an emergency stop device.
EP09783627.4A 2008-10-07 2009-10-01 Emergency stop device Not-in-force EP2332158B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0856780A FR2936902B1 (en) 2008-10-07 2008-10-07 EMERGENCY STOP DEVICE
PCT/EP2009/062736 WO2010040678A1 (en) 2008-10-07 2009-10-01 Emergency stop device

Publications (2)

Publication Number Publication Date
EP2332158A1 EP2332158A1 (en) 2011-06-15
EP2332158B1 true EP2332158B1 (en) 2014-07-16

Family

ID=40578722

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09783627.4A Not-in-force EP2332158B1 (en) 2008-10-07 2009-10-01 Emergency stop device

Country Status (12)

Country Link
US (1) US8497438B2 (en)
EP (1) EP2332158B1 (en)
JP (1) JP5335924B2 (en)
KR (1) KR101195285B1 (en)
CN (1) CN102165546B (en)
AU (1) AU2009301229B2 (en)
BR (1) BRPI0920555A2 (en)
FR (1) FR2936902B1 (en)
MX (1) MX2011001942A (en)
RU (1) RU2470400C1 (en)
WO (1) WO2010040678A1 (en)
ZA (1) ZA201101510B (en)

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Also Published As

Publication number Publication date
RU2011118445A (en) 2012-11-20
ZA201101510B (en) 2012-05-30
EP2332158A1 (en) 2011-06-15
FR2936902A1 (en) 2010-04-09
WO2010040678A1 (en) 2010-04-15
KR101195285B1 (en) 2012-10-26
BRPI0920555A2 (en) 2015-12-29
FR2936902B1 (en) 2010-09-17
JP2012505502A (en) 2012-03-01
AU2009301229B2 (en) 2013-05-02
US8497438B2 (en) 2013-07-30
MX2011001942A (en) 2011-03-29
RU2470400C1 (en) 2012-12-20
US20110168536A1 (en) 2011-07-14
JP5335924B2 (en) 2013-11-06
AU2009301229A1 (en) 2010-04-15
CN102165546A (en) 2011-08-24
CN102165546B (en) 2013-11-20
KR20110052739A (en) 2011-05-18

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