EP0840338A1 - Safety switch with rotatable head - Google Patents

Safety switch with rotatable head Download PDF

Info

Publication number
EP0840338A1
EP0840338A1 EP97402594A EP97402594A EP0840338A1 EP 0840338 A1 EP0840338 A1 EP 0840338A1 EP 97402594 A EP97402594 A EP 97402594A EP 97402594 A EP97402594 A EP 97402594A EP 0840338 A1 EP0840338 A1 EP 0840338A1
Authority
EP
European Patent Office
Prior art keywords
housing
head
safety switch
control
main direction
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP97402594A
Other languages
German (de)
French (fr)
Other versions
EP0840338B1 (en
Inventor
Hugues Da Dalt
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 SE
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 SE filed Critical Schneider Electric SE
Publication of EP0840338A1 publication Critical patent/EP0840338A1/en
Application granted granted Critical
Publication of EP0840338B1 publication Critical patent/EP0840338B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H27/00—Switches operated by a removable member, e.g. key, plug or plate; Switches operated by setting members according to a single predetermined combination out of several possible settings
    • H01H27/002—Switches operated by a removable member, e.g. key, plug or plate; Switches operated by setting members according to a single predetermined combination out of several possible settings wherein one single insertion movement of a key comprises an unlocking stroke and a switch actuating stroke, e.g. security switch for safety guards
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H27/00—Switches operated by a removable member, e.g. key, plug or plate; Switches operated by setting members according to a single predetermined combination out of several possible settings
    • H01H27/002—Switches operated by a removable member, e.g. key, plug or plate; Switches operated by setting members according to a single predetermined combination out of several possible settings wherein one single insertion movement of a key comprises an unlocking stroke and a switch actuating stroke, e.g. security switch for safety guards
    • H01H2027/005—Switches operated by a removable member, e.g. key, plug or plate; Switches operated by setting members according to a single predetermined combination out of several possible settings wherein one single insertion movement of a key comprises an unlocking stroke and a switch actuating stroke, e.g. security switch for safety guards the key receiving part having multiple openings to allow keys from different directions to operate the switch

Definitions

  • the present invention relates to a safety switch of the type comprising a housing that houses electrical contact members and a fixed control head in the housing, this head can take several positions offset between them by pivot, for example 90 ° around an axis oriented in one direction main, and including a safety mechanism with rotating roller and pusher for control the contact members and at least one passage slot of a external actuator capable of controlling the safety mechanism.
  • Safety switches of this type are known.
  • Their control head generally includes a control roller capable of rotating around a axis perpendicular to the main direction, to act on the pusher. It is useful to ability to select position of control head by rotating about main direction in order to adapt to the local mounting conditions of the safety switch.
  • the invention aims to simplify the maneuver and the means of changing position of the control head in rotation in a safety switch of the type described, as well as immobilizing the head in translation relative to the housing.
  • the fixing screw can preferably be used to fix a cover of the closing box a compartment where the contact assembly is housed.
  • Figure 1 shows schematically a safety switch according to the invention.
  • Figure 2 shows in perspective from below and on a larger scale a view exploded switch.
  • Figure 3 shows an exploded perspective view from above of the control head stripped of its cover, with the corresponding parts of the front face of the housing.
  • Figure 4 is an elevational view in partial section of an alternative embodiment switch solenoid.
  • the safety switch illustrated in Figure 1 comprises on the one hand a housing 10 parallelepiped elongated along a Z axis parallel to a direction main Z1 and on the other hand a substantially cubic control head 20, fixed to the housing so as to be able to take several positions angularly differentiated by rotation around the Z axis.
  • the housing 10 has lateral faces 11a-11d as well as an upper face 11e adjacent to the head 20 and a lower face 11f provided with a bushing for conductors.
  • the front side face 11a has orifices 12 for passage for screws for fixing the switch to a rear support not shown and a or two tapped holes 13,14 for passage for a screw 15, respectively 16, fixing a removable cover 17.
  • a contact assembly C In a compartment C1 of the housing can be closed by the cover 17 is arranged a contact assembly C.
  • the housing comprises at least one opening, for example a slot 18, for the passage of a dowel or a stirrup 19 ensuring the locking in translation of the head 20.
  • the opening can only be provided on one side face of the housing.
  • the control head 20 houses a safety mechanism 21 comprising at least a control roller 22 mounted pivoting about an axis X perpendicular to Z1, as well as non-indicated elements for blocking this roller, and an axis pusher parallel to Z1, for example confused with Z, the pusher being subject to the roller and intended to actuate the mechanical contacts of the assembly C.
  • the head 20 has finally on one of its lateral faces 20a, here put in the front position, a slot 23 for guiding a safety actuator 24 of particular shape allowing in particular, during its introduction movement, to unlock the locking elements before rotating the roller 22.
  • the actuator is by example linked to an enclosure door for electrical equipment or to a door machine and moves substantially in a direction Y perpendicular to X and Z. Another passage slot can be provided for the actuator in the wall upper 20th of the head.
  • the control head 20 has a lower part 24 with a cylindrical collar 25 and an upper part 26.
  • the upper part 26 serves as a support for the safety 21, in particular to the rollers 22, and is capped by a cover 27 provided with guide slots 23 for the actuator.
  • the cover 27 is fixed to the support 26 of the mechanism by means of pins 28 or similar elements accessible outside the housing.
  • the collar 25 enters a circular opening 11g of the wall 11e of the housing and comprises from top to bottom an annular groove 30 and a set re-entrant elements, for example in the form of four notches 31, distributed over its periphery in mutual offset of 90 °.
  • stirrups 19 are provided. each penetrating into a slot 18 of a side wall of the housing, so that the lateral branches 19a, 19b of the stirrup penetrate the groove for immobilize the head relative to the housing in the direction Z1 and that the core 19c of the stirrup closes the slot 18 with respect to the outside.
  • a non-threaded locking finger 15c is provided at the end of the upper screw 15 opposite its head 15a, beyond its threaded part 15b; the finger 15c is intended to penetrate the notch at the end of the screwing stroke for prevent the head from rotating around the Z axis.
  • the screw 15 passes in an opening 17a of the cover 17 to ensure jointly with immobilization in rotation of the control head fixing the cover, which also contributes the screw 16.
  • the head 20 has a central passage 40 for the pusher 41 which extends along the Z axis and transmits to the contact assembly C the movement communicated by the mechanism 21. It will be appreciated that, in a variant where the screw 15 does not participate in the fixing the cover, it can be associated with a wall 11b-11d of the housing other as the wall 11a.
  • a washer 32 carrying four elastic indexing elements 33 distributed regularly on its periphery and a central orifice 34 of square shape; the washer is immobilized in rotation at the bottom of the opening 11g by the engagement of its central orifice on a square protuberance 11h from the bottom.
  • Elements 33 play elastically in direction Z1 and can penetrate the lower end open notches 31; this allows on the one hand to pre-index the head of control 20 in the selected rotational position, pending its immobilization in rotation by the screw 15, on the other hand to facilitate positioning of your head when you go from one position to another.
  • FIG 4 is shown an electromagnet version of the switch security according to the invention.
  • the head is again engaged in the 11g opening of the upper face of the housing, then held in translation by the engagement of the stirrup or two stirrups 19 in the annular groove 30 and in rotation by cooperation of the screw 15 with a notch 31.
  • the device described operates in the following manner. To move from one position from the head to another, we unscrew the screw 15 to release the finger 15c from the notch respective 31. We can then rotate the head by the desired angle, equal to 90 ° or multiple of 90 °, the head crushing the indexing elements 33 along Z1, up to penetration of the elements 33 into the notches 31; we block our heads in our new position by fully screwing the screw 15, the finger 15c of which engages in the new notch 31 opposite which it was brought. lt should be observed that the head 20 changes position without having to be lifted and by simple operation of a screw 15, its lower face 20f remaining constantly level with the 11th upper face of the housing. The head 20 is moreover easily removable by operating the screw 15 and the stirrup or the two stirrups 19.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Switches With Compound Operations (AREA)
  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)

Abstract

The switch has a housing (10) with a square shape which cooperates with a control head (20) and rotates about a housing axis (z). The housing has openings for incoming conductors and lateral holes (12) for fixing screws. A removable lid (17) covers the housing and is held by screws (15,16) which engage threaded holes (13,14). A contact mechanism (C) is positioned inside the housing. The control head has a safety mechanism (21) which can block the head in its rotation. A push button actuates the contact mechanism.

Description

La présente invention concerne un interrupteur de sécurité du type comprenant un boítier qui loge des organes de contact électrique et une tête de commande fixée au boítier, cette tête pouvant prendre plusieurs positions décalées entre elles par pivotement, par exemple de 90° autour d'un axe orienté selon une direction principale, et incluant un mécanisme de sécurité à galet tournant et poussoir pour commander les organes de contact et au moins une fente de passage d'un actionneur externe capable de commander le mécanisme de sécurité.The present invention relates to a safety switch of the type comprising a housing that houses electrical contact members and a fixed control head in the housing, this head can take several positions offset between them by pivot, for example 90 ° around an axis oriented in one direction main, and including a safety mechanism with rotating roller and pusher for control the contact members and at least one passage slot of a external actuator capable of controlling the safety mechanism.

Des interrupteurs de sécurité de ce type sont connus. Leur tête de commande comprend généralement un galet de commande susceptible de tourner autour d'un axe perpendiculaire à la direction principale, pour agir sur le poussoir. Il est utile de pouvoir choisir la position de la tête de commande par rotation autour de la direction principale afin de s'adapter aux conditions locales de montage de l'interrupteur de sécurité.Safety switches of this type are known. Their control head generally includes a control roller capable of rotating around a axis perpendicular to the main direction, to act on the pusher. It is useful to ability to select position of control head by rotating about main direction in order to adapt to the local mounting conditions of the safety switch.

Il est déjà connu d'utiliser à cet effet des interrupteurs de sécurité dont la tête de commande, fixée au boítier par des vis, peut passer d'une première position à une deuxième position par les opérations suivantes : desserrage des vis afin de causer le déblocage de la tête de sa première position, soulèvement de la tête selon la direction principale, rotation de la tête jusqu'à la deuxième position, puis serrage des vis pour assurer le blocage de la tête dans cette nouvelle position. Du point de vue de l'opérateur, il serait souhaitable de simplifier le mode de changement de position de la tête de commande.It is already known to use for this purpose safety switches whose head control, fixed to the housing by screws, can pass from a first position to a second position by the following operations: loosening of the screws in order to cause unlocking the head from its first position, lifting the head according to the main direction, rotation of the head to the second position, then tightening screws to secure the head in this new position. From the point of operator view, it would be desirable to simplify the mode of change of position of the control head.

Par ailleurs, un desserrage intempestif des vis de fixation de la tête au boítier risque d'engendrer un changement d'état des organes de contact électrique. En effet, ceux-ci étant manoeuvrés par le poussoir selon la direction principale, lequel poussoir appartient à la tête, ils risquent de ne plus être assujettis dans cette direction. Il importe donc d'assurer un blocage fiable de la tête selon la direction principale.In addition, an untimely loosening of the screws fixing the head to the housing risk of causing a change of state of the electrical contact members. In effect, these being operated by the pusher in the main direction, which push belongs to the head, they may no longer be subject in this direction. It is therefore important to ensure reliable blocking of the head according to the direction main.

L'invention a pour but de simplifier la manoeuvre et les moyens de changement de position de la tête de commande en rotation dans un interrupteur de sécurité du type décrit, ainsi que d'immobiliser la tête en translation par rapport au boítier. The invention aims to simplify the maneuver and the means of changing position of the control head in rotation in a safety switch of the type described, as well as immobilizing the head in translation relative to the housing.

Selon l'invention, la tête de commande présente :

  • une partie inférieure à collet cylindrique engagée dans une ouverture d'une paroi supérieure du boítier, présentant un passage central de guidage pour le poussoir, le collet étant muni d'une part d'une rainure annulaire et d'autre part d'éléments rentrants distribués à intervalles réguliers sur son pourtour,
  • des éléments de retenue engagés perpendiculairement à la direction principale dans une ouverture latérale du boítier et dans la rainure annulaire, pour empêcher une translation de la tête selon la direction principale,
  • une vis de fixation de la tête en rotation, cette vis s'étendant de préférence perpendiculairement à la direction principale et coopérant avec l'un ou l'autre des éléments rentrants pour bloquer la tête en rotation.
According to the invention, the control head has:
  • a lower part with cylindrical collar engaged in an opening of an upper wall of the housing, having a central guide passage for the pusher, the collar being provided on the one hand with an annular groove and on the other hand with re-entrant elements distributed at regular intervals around its perimeter,
  • retaining elements engaged perpendicularly to the main direction in a lateral opening of the housing and in the annular groove, to prevent translation of the head in the main direction,
  • a screw for fixing the rotating head, this screw preferably extending perpendicular to the main direction and cooperating with one or the other of the re-entrant elements to block the rotating head.

La vis de fixation peut de préférence servir à fixer un couvercle du boítier fermant un compartiment où est logé l'ensemble de contact. Il peut d'autre part être avantageux d'agencer les éléments de retenue sur au moins une pièce en forme de fourche et de prévoir entre la tête de commande et le boítier au moins un élément élastique d'indexation mobile selon la direction principale pour faciliter l'indexation de la tête dans la position choisie.The fixing screw can preferably be used to fix a cover of the closing box a compartment where the contact assembly is housed. On the other hand, it can be advantageous to arrange the retaining elements on at least one shaped part fork and provide between the control head and the housing at least one elastic indexing element movable in the main direction to facilitate indexing the head in the chosen position.

La description qui va être faite à présent d'un exemple de réalisation de l'interrupteur de sécurité conforme à l'invention, en regard des dessins annexés, permettra de bien comprendre la constitution et les caractéristiques de cet interrupteur de sécurité.The description which will now be given of an exemplary embodiment of the safety switch according to the invention, with reference to the accompanying drawings, will allow a good understanding of the constitution and characteristics of this safety switch.

La figure 1 représente schématiquement un interrupteur de sécurité selon l'invention.Figure 1 shows schematically a safety switch according to the invention.

La figure 2 montre en perspective de dessous et à plus grande échelle une vue éclatée de l'interrupteur.Figure 2 shows in perspective from below and on a larger scale a view exploded switch.

La figure 3 montre en perspective éclatée de dessus la tête de commande débarrassée de son capot, avec les parties correspondantes de la face avant du boítier.Figure 3 shows an exploded perspective view from above of the control head stripped of its cover, with the corresponding parts of the front face of the housing.

La figure 4 est une vue en élévation et coupe partielle d'une variante de réalisation à électroaimant de l'interrupteur. Figure 4 is an elevational view in partial section of an alternative embodiment switch solenoid.

L'interrupteur de sécurité illustré sur la figure 1 comprend d'une part un boítier 10 parallélépipédique de forme allongée selon un axe Z parallèle à une direction principale Z1 et d'autre part une tête de commande 20 sensiblement cubique, fixée au boítier de manière à pouvoir prendre plusieurs positions angulairement différenciées par rotation autour de l'axe Z.The safety switch illustrated in Figure 1 comprises on the one hand a housing 10 parallelepiped elongated along a Z axis parallel to a direction main Z1 and on the other hand a substantially cubic control head 20, fixed to the housing so as to be able to take several positions angularly differentiated by rotation around the Z axis.

Le boítier 10 présente des faces latérales 11a-11d ainsi qu'une face supérieure 11e adjacente à la tête 20 et une face inférieure 11f munie d'une traversée pour des conducteurs. La face latérale avant 11a comporte des orifices 12 de passage pour des vis de fixation de l'interrupteur à un support arrière non représenté et un ou deux orifices taraudés 13,14 de passage pour une vis 15, respectivement 16, de fixation d'un couvercle amovible 17. Dans un compartiment C1 du boítier susceptible d'être fermé par le couvercle 17 est disposé un ensemble de contact C. Sur chacune de ses faces latérales avant 11a et arrière 11d, le boítier comprend au moins une ouverture, par exemple une fente 18, de passage d'une cheville ou d'un étrier 19 assurant le blocage en translation de la tête 20. L'ouverture peut n'être prévue que sur une seule face latérale du boítier.The housing 10 has lateral faces 11a-11d as well as an upper face 11e adjacent to the head 20 and a lower face 11f provided with a bushing for conductors. The front side face 11a has orifices 12 for passage for screws for fixing the switch to a rear support not shown and a or two tapped holes 13,14 for passage for a screw 15, respectively 16, fixing a removable cover 17. In a compartment C1 of the housing can be closed by the cover 17 is arranged a contact assembly C. On each of its front 11a and rear 11d side faces, the housing comprises at least one opening, for example a slot 18, for the passage of a dowel or a stirrup 19 ensuring the locking in translation of the head 20. The opening can only be provided on one side face of the housing.

La tête de commande 20 loge un mécanisme de sécurité 21 comprenant au moins un galet 22 de commande monté pivotant autour d'un axe X perpendiculaire à Z1, ainsi que des éléments non indiqués de blocage de ce galet, et un poussoir d'axe parallèle à Z1, par exemple confondu avec Z, le poussoir étant assujetti au galet et destiné à actionner les contacts mécaniques de l'ensemble C. La tête 20 présente enfin sur l'une de ses faces latérales 20a, ici mise en position avant, une fente 23 de guidage d'un actionneur de sécurité 24 de forme particulière permettant notamment, au cours de son mouvement d'introduction, de déverrouiller les éléments de blocage avant de faire tourner le galet 22. L'actionneur est par exemple lié à une porte d'enveloppe pour matériel électrique ou à une porte de machine et se déplace sensiblement selon une direction Y perpendiculaire à X et Z. Une autre fente de passage peut être prévue pour l'actionneur dans la paroi supérieure 20e de la tête.The control head 20 houses a safety mechanism 21 comprising at least a control roller 22 mounted pivoting about an axis X perpendicular to Z1, as well as non-indicated elements for blocking this roller, and an axis pusher parallel to Z1, for example confused with Z, the pusher being subject to the roller and intended to actuate the mechanical contacts of the assembly C. The head 20 has finally on one of its lateral faces 20a, here put in the front position, a slot 23 for guiding a safety actuator 24 of particular shape allowing in particular, during its introduction movement, to unlock the locking elements before rotating the roller 22. The actuator is by example linked to an enclosure door for electrical equipment or to a door machine and moves substantially in a direction Y perpendicular to X and Z. Another passage slot can be provided for the actuator in the wall upper 20th of the head.

La tête de commande 20 présente une partie inférieure 24 à collet cylindrique 25 et une partie supérieure 26. La partie supérieure 26 sert de support au mécanisme de sécurité 21, en particulier aux galets 22, et est coiffée par un capot 27 doté des fentes 23 de guidage pour l'actionneur. Le capot 27 est fixé au support 26 du mécanisme au moyen de goupilles 28 ou éléments analogues accessibles hors du boítier. Le collet 25 pénètre dans une ouverture circulaire 11g de la paroi 11e du boítier et comporte du haut vers le bas une rainure annulaire 30 et un ensemble d'éléments rentrants, par exemple sous forme de quatre encoches 31, répartis sur son pourtour en décalage mutuel de 90°.The control head 20 has a lower part 24 with a cylindrical collar 25 and an upper part 26. The upper part 26 serves as a support for the safety 21, in particular to the rollers 22, and is capped by a cover 27 provided with guide slots 23 for the actuator. The cover 27 is fixed to the support 26 of the mechanism by means of pins 28 or similar elements accessible outside the housing. The collar 25 enters a circular opening 11g of the wall 11e of the housing and comprises from top to bottom an annular groove 30 and a set re-entrant elements, for example in the form of four notches 31, distributed over its periphery in mutual offset of 90 °.

Pour coopérer avec la rainure annulaire 30, on prévoit un ou deux étriers 19 pénétrant chacun dans une fente 18 d'une paroi latérale du boítier, de manière que les branches latérales 19a,19b de l'étrier pénètrent dans la rainure pour immobiliser la tête par rapport au boítier dans la direction Z1 et que l'âme 19c de l'étrier obture la fente 18 vis à vis de l'extérieur. D'autre part, pour coopérer avec chaque encoche 31, on prévoit à l'extrémité de la vis supérieure 15 opposée à sa tête 15a, au-delà de sa partie filetée 15b, un doigt non fileté 15c de blocage ; le doigt 15c est destiné à pénétrer dans l'encoche en bout de course de vissage pour empêcher la tête de tourner autour de l'axe Z. On constate que la vis 15 passe dans une ouverture 17a du couvercle 17 pour assurer conjointement à l'immobilisation en rotation de la tête de commande la fixation du couvercle, à laquelle contribue aussi la vis 16.To cooperate with the annular groove 30, one or two stirrups 19 are provided. each penetrating into a slot 18 of a side wall of the housing, so that the lateral branches 19a, 19b of the stirrup penetrate the groove for immobilize the head relative to the housing in the direction Z1 and that the core 19c of the stirrup closes the slot 18 with respect to the outside. On the other hand, to cooperate with each notch 31 is provided at the end of the upper screw 15 opposite its head 15a, beyond its threaded part 15b, a non-threaded locking finger 15c; the finger 15c is intended to penetrate the notch at the end of the screwing stroke for prevent the head from rotating around the Z axis. We see that the screw 15 passes in an opening 17a of the cover 17 to ensure jointly with immobilization in rotation of the control head fixing the cover, which also contributes the screw 16.

La tête 20 présente un passage central 40 pour le poussoir 41 qui s'étend selon l'axe Z et transmet à l'ensemble de contact C le mouvement communiqué par le mécanisme 21. On conçoit que, dans une variante où la vis 15 ne participe pas à la fixation du couvercle, elle peut être associée à une paroi 11b-11d du boítier autre que la paroi 11a.The head 20 has a central passage 40 for the pusher 41 which extends along the Z axis and transmits to the contact assembly C the movement communicated by the mechanism 21. It will be appreciated that, in a variant where the screw 15 does not participate in the fixing the cover, it can be associated with a wall 11b-11d of the housing other as the wall 11a.

Il est prévu entre la face inférieure de la partie inférieure 24 de la tête et le fond du boítier une rondelle 32 portant quatre éléments élastiques d'indexation 33 répartis régulièrement sur son pourtour et un orifice central 34 de forme carrée ; la rondelle est immobilisée en rotation au fond de l'ouverture 11g par l'engagement de son orifice central sur une protubérance carrée 11h du fond. Les éléments 33 jouent élastiquement dans la direction Z1 et peuvent pénétrer dans l'extrémité inférieure ouverte des encoches 31 ; ceci permet d'une part de préindexer la tête de commande 20 dans la position en rotation choisie, dans l'attente de son immobilisation en rotation par la vis 15, d'autre part de faciliter le positionnement de la tête quand on passe d'une position à une autre.It is provided between the lower face of the lower part 24 of the head and the bottom of the housing a washer 32 carrying four elastic indexing elements 33 distributed regularly on its periphery and a central orifice 34 of square shape; the washer is immobilized in rotation at the bottom of the opening 11g by the engagement of its central orifice on a square protuberance 11h from the bottom. Elements 33 play elastically in direction Z1 and can penetrate the lower end open notches 31; this allows on the one hand to pre-index the head of control 20 in the selected rotational position, pending its immobilization in rotation by the screw 15, on the other hand to facilitate positioning of your head when you go from one position to another.

Sur la figure 4 est représentée une version à électroaimant de l'interrupteur de sécurité selon l'invention. La tête est là encore engagée dans l'ouverture 11g de la face supérieure du boítier, puis maintenue en translation par l'engagement de l'étrier ou des deux étriers 19 dans la rainure annulaire 30 et en rotation par coopération de la vis 15 avec une encoche 31.In Figure 4 is shown an electromagnet version of the switch security according to the invention. The head is again engaged in the 11g opening of the upper face of the housing, then held in translation by the engagement of the stirrup or two stirrups 19 in the annular groove 30 and in rotation by cooperation of the screw 15 with a notch 31.

Le dispositif décrit fonctionne de la manière suivante. Pour passer d'une position de la tête à une autre, on dévisse la vis 15 pour dégager le doigt 15c de l'encoche respective 31. On peut alors faire tourner la tête de l'angle voulu, égal à 90° ou multiple de 90°, la tête écrasant les éléments d'indexation 33 selon Z1, jusqu'à pénétration des éléments 33 dans les encoches 31 ; on bloque la tête dans sa nouvelle position en vissant à fond la vis 15, dont le doigt 15c s'engage dans la nouvelle encoche 31 en face de laquelle elle a été amenée. ll convient d'observer que la tête 20 change de position sans devoir être soulevée et par simple manoeuvre d'une vis 15, sa face inférieure 20f restant constamment de niveau avec la face supérieure 11e du boítier. La tête 20 est par ailleurs aisément démontable par manoeuvre de la vis 15 et de l'étrier ou des deux étriers 19.The device described operates in the following manner. To move from one position from the head to another, we unscrew the screw 15 to release the finger 15c from the notch respective 31. We can then rotate the head by the desired angle, equal to 90 ° or multiple of 90 °, the head crushing the indexing elements 33 along Z1, up to penetration of the elements 33 into the notches 31; we block our heads in our new position by fully screwing the screw 15, the finger 15c of which engages in the new notch 31 opposite which it was brought. lt should be observed that the head 20 changes position without having to be lifted and by simple operation of a screw 15, its lower face 20f remaining constantly level with the 11th upper face of the housing. The head 20 is moreover easily removable by operating the screw 15 and the stirrup or the two stirrups 19.

Claims (5)

Interrupteur de sécurité comprenant un boítier surmonté dans une direction principale (Z1) d'une tête de commande et logeant un ensemble de contact électrique, la tête de commande (20) comportant: un mécanisme (21) à galet de commande (22) susceptible de toumer pour commander l'ensemble de contact (C) via un poussoir s'étendant selon un axe parallèle à la direction principale (Z1), au moins une fente (23) de passage pour un actionneur (24) destiné à coopérer avec le galet pour le faire tourner, la tête de commande étant montée dans le boítier (10) de manière à pouvoir pivoter autour d'un axe (Z) parallèle à la direction principale (Z1), caractérisé par le fait que : la tête de commande (20) présente une partie inférieure (24) à collet cylindrique (25) engagée dans une ouverture (11g) d'une paroi supérieure (11e) du boítier, présentant un passage central (40) de guidage pour le poussoir (41), le collet étant muni d'une part d'une rainure annulaire (30) et d'autre part d'éléments rentrants (31) distribués à intervalles réguliers sur son pourtour, des éléments de retenue (19) engagés perpendiculairement à la direction principale (Z1) dans une ouverture latérale (18) du boítier et dans la rainure annulaire (30) pour empêcher une translation de la tête selon la direction principale, une vis (15) de fixation de la tête en rotation, cette vis coopérant avec l'un ou l'autre des éléments rentrants (31) pour bloquer la tête en rotation. Safety switch comprising a box surmounted in a main direction (Z1) by a control head and housing an electrical contact assembly, the control head (20) comprising: a mechanism (21) with a control roller (22) capable of rotating to control the contact assembly (C) via a pusher extending along an axis parallel to the main direction (Z1), at least one passage slot (23) for an actuator (24) intended to cooperate with the roller to rotate it, the control head being mounted in the housing (10) so as to be able to pivot about an axis (Z) parallel to the main direction (Z1), characterized by the fact that: the control head (20) has a lower part (24) with cylindrical collar (25) engaged in an opening (11g) of an upper wall (11e) of the housing, having a central passage (40) for guiding the pusher (41), the collar being provided on the one hand with an annular groove (30) and on the other hand with re-entrant elements (31) distributed at regular intervals around its periphery, retaining elements (19) engaged perpendicular to the main direction (Z1) in a lateral opening (18) of the housing and in the annular groove (30) to prevent translation of the head in the main direction, a screw (15) for fixing the rotating head, this screw cooperating with one or other of the re-entrant elements (31) to block the rotating head. Interrupteur de sécurité selon la revendication 1, caractérisé par le fait que la vis de fixation (15) traverse une ouverture (17a) prévue dans un couvercle (17) d'un compartiment (C1) du boítier (10) qui loge l'ensemble de contact (C) et sert à fixer le couvercle au boítier.Safety switch according to claim 1, characterized in that the screw fixing (15) through an opening (17a) provided in a cover (17) of a compartment (C1) of the housing (10) which houses the contact assembly (C) and serves to fix the cover to the housing. Interrupteur de sécurité selon la revendication 1, caractérisé par le fait que les éléments de retenue (19) sont formés sur une pièce en forme de fourche. Safety switch according to claim 1, characterized in that the retainers (19) are formed on a fork-shaped part. Interrupteur de sécurité selon la revendication 1, caractérisé par le fait que la tête de commande (20) comporte une partie supérieure (26) formant support pour le mécanisme de commande (21), et un capot (27) fixé au support au moyen de goupilles ou éléments analogues (28) accessibles hors du boítier.Safety switch according to claim 1, characterized in that the control head (20) has an upper part (26) forming a support for the control mechanism (21), and a cover (27) fixed to the support by means of pins or the like (28) accessible outside the housing. Interrupteur de sécurité selon la revendication 1, caractérisé par le fait qu'il est prévu au moins un élément élastique d'indexation (33) entre la tête de commande (20) et une paroi de l'ouverture (11g) du boítier pour coopérer avec les encoches (31).Safety switch according to claim 1, characterized in that it is provided with at least one elastic indexing element (33) between the control head (20) and a wall of the opening (11g) of the housing to cooperate with the notches (31).
EP97402594A 1996-11-04 1997-10-31 Safety switch with rotatable head Expired - Lifetime EP0840338B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9613627A FR2755533B1 (en) 1996-11-04 1996-11-04 SAFETY SWITCH WITH SWIVELING HEAD
FR9613627 1996-11-04

Publications (2)

Publication Number Publication Date
EP0840338A1 true EP0840338A1 (en) 1998-05-06
EP0840338B1 EP0840338B1 (en) 2001-10-04

Family

ID=9497442

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97402594A Expired - Lifetime EP0840338B1 (en) 1996-11-04 1997-10-31 Safety switch with rotatable head

Country Status (6)

Country Link
US (1) US5894116A (en)
EP (1) EP0840338B1 (en)
JP (1) JP3919907B2 (en)
DE (1) DE69707081T2 (en)
ES (1) ES2161420T3 (en)
FR (1) FR2755533B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113803580A (en) * 2021-08-10 2021-12-17 上海青舟燃气设备有限公司 Installation construction method and construction structure of gas alarm device

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2785985B1 (en) * 1998-11-18 2001-02-23 Crouzet Automatismes POSITION DETECTOR WITH ORIENTATION MECHANISM
US6501040B2 (en) * 2001-05-18 2002-12-31 Honeywell International Inc. Dual directional cable actuated emergency stop device
DE10146828A1 (en) * 2001-09-18 2003-04-24 Euchner Gmbh & Co Locking system of a safety switch with a read head and an actuator
FR2830981B1 (en) * 2001-10-15 2004-10-15 Schneider Electric Ind Sa SWITCH, ESPECIALLY POSITIONING, WITH ADJUSTABLE HEAD
FR2876217B1 (en) * 2004-10-06 2007-04-20 Socomec Sa Sa ELECTRICAL CUTTING APPARATUS WITH FRONTAL OR SIDE CONTROL
JP4396478B2 (en) * 2004-10-21 2010-01-13 オムロン株式会社 Key switch
ITVI20040256A1 (en) * 2004-10-29 2005-01-29 Pizzato Elettrica Srl ELECTRIC SWITCH WITH EXTERNAL DRIVE
GB0513651D0 (en) * 2005-07-02 2005-08-10 Eja Ltd Lockable switch mechanism
GB0515583D0 (en) * 2005-07-29 2005-09-07 Eja Ltd Safety switch operating mechanism
TWM286989U (en) * 2005-09-27 2006-02-01 Joemex Electric Corp Power switch protector
US7429708B1 (en) * 2007-06-22 2008-09-30 Eja, Limited Safety switch
US8004283B2 (en) * 2008-01-25 2011-08-23 Eaton Corporation Method of actuating a test function of an electrical switching apparatus at a panel and electrical switching apparatus employing the same
USD742840S1 (en) * 2013-11-13 2015-11-10 Rockwell Automation Technologies, Inc. Industrial control
ITVI20130290A1 (en) * 2013-12-06 2015-06-07 Pizzato Elettrica Srl SECURITY SWITCH WITH ELECTRONIC DRIVE
ITVI20130291A1 (en) * 2013-12-06 2015-06-07 Pizzato Elettrica Srl TIMED SAFETY SWITCH WITH MANUAL OPERATION
JP7122851B2 (en) * 2018-04-13 2022-08-22 株式会社キーエンス safety switch

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3710079A1 (en) * 1987-03-27 1988-10-06 Schunk Metall & Kunststoff Electric interlocking switch
DE3943377C1 (en) * 1989-12-30 1991-02-21 Kloeckner-Moeller Elektrizitaetsgesellschaft Mbh, 5300 Bonn, De Locking closure for electrical switching appts. housing - has arresting nose on cover engaging recess in housing and locking part arresting snap coupling
DE4238016A1 (en) * 1992-11-11 1994-05-19 Kloeckner Moeller Gmbh Position switch operating apparatus - enables switch to be put into door open or door closed or closed and locked positions by inserting key.

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4963706A (en) * 1989-01-12 1990-10-16 Eja Engineering Company Limited Safety switch assemblies
EP0553885B2 (en) * 1992-01-31 2003-12-17 Omron Corporation Safety switch

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3710079A1 (en) * 1987-03-27 1988-10-06 Schunk Metall & Kunststoff Electric interlocking switch
DE3943377C1 (en) * 1989-12-30 1991-02-21 Kloeckner-Moeller Elektrizitaetsgesellschaft Mbh, 5300 Bonn, De Locking closure for electrical switching appts. housing - has arresting nose on cover engaging recess in housing and locking part arresting snap coupling
DE4238016A1 (en) * 1992-11-11 1994-05-19 Kloeckner Moeller Gmbh Position switch operating apparatus - enables switch to be put into door open or door closed or closed and locked positions by inserting key.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113803580A (en) * 2021-08-10 2021-12-17 上海青舟燃气设备有限公司 Installation construction method and construction structure of gas alarm device
CN113803580B (en) * 2021-08-10 2023-03-24 上海青舟燃气设备有限公司 Installation construction method and construction structure of gas alarm device

Also Published As

Publication number Publication date
JPH10223099A (en) 1998-08-21
EP0840338B1 (en) 2001-10-04
DE69707081T2 (en) 2002-05-29
FR2755533A1 (en) 1998-05-07
DE69707081D1 (en) 2001-11-08
ES2161420T3 (en) 2001-12-01
FR2755533B1 (en) 1998-12-24
US5894116A (en) 1999-04-13
JP3919907B2 (en) 2007-05-30

Similar Documents

Publication Publication Date Title
EP0840338B1 (en) Safety switch with rotatable head
EP0088699B1 (en) Key holder of the type of a key retracting in a case
EP1747567B1 (en) Rotary knob for electrical system
EP3208820B1 (en) Rotary command system for a device
EP0612090A2 (en) Rotation operating device for a circuit breaker
FR2680608A1 (en) SELECTIVE DEVICE FOR ELECTRICAL CONNECTION PROVIDED WITH A SAFETY DISC AND A COMPLEMENTARY DISC.
FR2696866A1 (en) Three-position switch actuation mechanism.
FR2534739A1 (en) SAFETY CONTACTOR
EP0930681A1 (en) Locking device for snap and disconnecting mechanism of an electrical circuit breaker
FR2591265A1 (en) ARMING LOCK BY ELECTRICAL CONTROL USING AN ELECTRO-MAGNET
EP2061058A1 (en) Device for controlling electrical switchgear and electrical switchgear including same
FR2798575A1 (en) ELECTRIC HAND MIXER
FR2471262A3 (en) ELECTRIC MOTOR DRIVEN BOOT AND GUIDE BY HAND
FR3054851A1 (en) VEHICLE DOOR OPENING / CLOSING APPARATUS AND METHOD OF MANUFACTURING THE SAME
EP0778595A1 (en) Safety switch with key
EP1302956B1 (en) Position switch with rotatable head
EP0404609B1 (en) Panic door lock assembly
EP0604331A1 (en) Locking device with a padlock of a manual control lever of a modular electric switching device
EP1291478A1 (en) Lock with universal mounting
EP0089863B1 (en) Device for an alarm stop
EP4256661A1 (en) Frame device for a plug-in cutting electrical appliance and assembly comprising said frame device and such an appliance
EP0170577A1 (en) Control device for opening a motor vehicle door lock
EP0294276B1 (en) Disc combination lock with automatic scrambling on closing
WO2001079630A1 (en) Security lock for an autoclave door
FR2751122A1 (en) SAFETY SWITCH WITH BLOCKABLE ACTUATOR

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE ES GB IT

RIN1 Information on inventor provided before grant (corrected)

Inventor name: DA DALT, HUGUES

17P Request for examination filed

Effective date: 19980522

AKX Designation fees paid

Free format text: DE ES GB IT

RBV Designated contracting states (corrected)

Designated state(s): DE ES GB IT

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: SCHNEIDER ELECTRIC INDUSTRIES SA

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: SCHNEIDER ELECTRIC INDUSTRIES SA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

17Q First examination report despatched

Effective date: 20010306

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE ES GB IT

REF Corresponds to:

Ref document number: 69707081

Country of ref document: DE

Date of ref document: 20011108

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2161420

Country of ref document: ES

Kind code of ref document: T3

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20011217

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20091027

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20091006

Year of fee payment: 13

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20101031

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20101031

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20111118

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20101101

REG Reference to a national code

Ref country code: DE

Ref legal event code: R084

Ref document number: 69707081

Country of ref document: DE

Effective date: 20111228

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20130905

Year of fee payment: 17

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20131014

Year of fee payment: 17

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 69707081

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20150501

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20141031