EP0256900B1 - Apparatus with a device for selective blocking of one or more positions of a manual control element - Google Patents

Apparatus with a device for selective blocking of one or more positions of a manual control element Download PDF

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Publication number
EP0256900B1
EP0256900B1 EP87401598A EP87401598A EP0256900B1 EP 0256900 B1 EP0256900 B1 EP 0256900B1 EP 87401598 A EP87401598 A EP 87401598A EP 87401598 A EP87401598 A EP 87401598A EP 0256900 B1 EP0256900 B1 EP 0256900B1
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EP
European Patent Office
Prior art keywords
cover
knob
positions
control member
face
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Expired - Lifetime
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EP87401598A
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German (de)
French (fr)
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EP0256900A1 (en
Inventor
Bruno Jacquet
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Telemecanique SA
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La Telemecanique Electrique SA
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Priority to AT87401598T priority Critical patent/ATE57026T1/en
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    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
    • G05G5/00—Means for preventing, limiting or returning the movements of parts of a control mechanism, e.g. locking controlling member
    • G05G5/06—Means for preventing, limiting or returning the movements of parts of a control mechanism, e.g. locking controlling member for holding members in one or a limited number of definite positions only
    • G05G5/08—Interlocking of members, e.g. locking member in a particular position before or during the movement of another member
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
    • G05G5/00—Means for preventing, limiting or returning the movements of parts of a control mechanism, e.g. locking controlling member
    • G05G5/06—Means for preventing, limiting or returning the movements of parts of a control mechanism, e.g. locking controlling member for holding members in one or a limited number of definite positions only
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H2071/109—Operating or release mechanisms with provisions for selecting between automatic or manual reset

Definitions

  • the present invention relates to a device for the selective and / or partial prohibition of one or more modes of actuation of manual control members fitted to an apparatus.
  • thermo relays with manual-auto reset It applies advantageously, but not exclusively, to devices of the overload relay type with manual and automatic reset generally called "thermal relays with manual-auto reset”.
  • a thermal relay is a protective device associated with a contactor. Its purpose is to monitor the current flowing in the load (for example of a motor), controlled by the contactor and to cause the opening of the latter in the event of overload, that is to say for a current which can for example, present a value between 1.05 and 1.2 times the nominal cost of the load, the value of which is indicated by the manufacturer.
  • This relay generally includes thermally deformable bimetallic elements heated by the current flowing through the load. From a certain threshold corresponding to an overload, these elements actuate a tripping device which controls the opening of a contactor.
  • the reset causing the load to be put back into service can be done manually and / or automatically depending on whether it is a manual reset relay or a manual-auto reset relay.
  • the invention therefore more particularly aims to eliminate this type of drawback.
  • a selective prohibition device capable of equipping a device housed in a housing, one of the faces of which comprises at least one manual control member with multiple functions which can be switched from one first position corresponding to a first function to a second position corresponding to a second function and, from at least one of these two positions, to a third position corresponding to a third function, said member being associated with a cover.
  • a device is known, for example, from document DE-A 2 950 438.
  • this device is more particularly characterized in that the cover is pivotally mounted on said housing, so that it can be applied in the folded position against said face, this cover being shaped so as to allow manual access to the actuating member and comprising means for authorizing the passage of this actuating member from the first two positions to the third position, while preventing its passage from one to the other of these two first positions.
  • said means equipping the cover may consist of polarization means cooperating with corresponding polarization means provided on the control member.
  • the actuating member consists of a button projecting from said face, this button being movable in rotation between two angular positions and in translation along its axis of rotation .
  • the cover has a cutout of a suitable shape to allow the passage of the button, while the shape of the button is provided so as to cooperate with the edge of said cutout so that in the folded position of the cover, the button cannot pass from one angular position to another while being able to be moved in translation.
  • said cutout and said button may have, one, at least one protruding shape, and the other, a re-entrant shape adapted to receive said protruding shape in one and / or the other of the two angular positions. button.
  • the cover can be used to prevent access, by overlap, to other actuating members of the device. It may also include other recesses allowing selective access to only part of the actuating members of the device.
  • Figures 1 and 2 schematically represent a thermal relay with "manual-auto" reset housed in a housing 1 whose vertical front face 2 is provided with a current adjustment button 3, a stop button 4 and d '' a selection / reset button 5.
  • the front face of the current adjustment knob 3 extends substantially in the plane of the face 2.
  • This knob 3 is movable in rotation and can comprise a slot allowing its actuation, for example using a screwdriver.
  • the stop button 4 which is movable in translation, in the manner of a pusher, is projecting relative to the face 2.
  • the vertical face 2 of the housing 1 is provided with a transparent lifting cover 6, articulated on the housing 1 by means of pins 7, 8 and which, in the folded position, covers the current adjustment button 3 while allowing the view of this setting and access to the stop button 4.
  • This cover 6 is further provided with an opening 9 for the passage of the selection / reset button 5, as well as a closing device 10 which cooperates with a homologous device 11 of the housing in order to keep it in the folded position and d '' a sealing device, ensuring the inviolability of the closure.
  • the selection / reset button 5 partly cylindrical, has a polarizing shape, in this case, an angular portion projecting at 90 ° , 12, while the opening 9 has a semicircular shape extended by a rectangular part whose two right angles correspond respectively to the two angular positions A and M of the button.
  • the width of the rectangular part is equal to the diameter of the semicircular shape and is slightly greater than the diameter of the button, so that it is not possible for the latter to switch from one of these two positions to the other. angular A, M without lifting the cover 6.
  • the selection of the auto or manual reset mode can only be carried out with the hood raised as well as the display of the current setting.
  • This keying is such that when the button 5 is selected on M (manual mode), it is possible to press this button 5 to obtain the reset without risking causing the rotation thereof.
  • This device therefore allows the installer to adjust the current and choose the reset mode during start-up.
  • the current adjustment button 3 ', the stop button 4' and the reset button 5 ' are carried by the upper face 13 of the housing 1.
  • the reset button 5 ′ is identical to that shown in FIGS. 1 and 2. On the other hand, it does not pass through the cover 6 ′ but cooperates for the coding with a cutout 14 forming a re-entrant angular region at right angles.
  • the cover 6 ' has an opening 15 through which the stop button 4' passes.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Mechanical Control Devices (AREA)
  • Casings For Electric Apparatus (AREA)
  • Mechanical Operated Clutches (AREA)
  • Preventing Unauthorised Actuation Of Valves (AREA)
  • Water Treatment By Sorption (AREA)
  • Machine Translation (AREA)
  • Braking Systems And Boosters (AREA)
  • Pyridine Compounds (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Electrophonic Musical Instruments (AREA)
  • Control Of Steam Boilers And Waste-Gas Boilers (AREA)
  • Regulation And Control Of Combustion (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Fluid-Damping Devices (AREA)
  • Invalid Beds And Related Equipment (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)
  • Chairs Characterized By Structure (AREA)
  • Threshing Machine Elements (AREA)

Abstract

The invention provides a device for selectively preventing actuating modes of a manual control member equipping the face of the case of an apparatus and able to change over from a first position corresponding to a first function, to a second position corresponding to a second function and, from the first position to a third position corresponding to a third function. It includes a cover mounted for pivoting on the case and able to be applied against said face. This cover allows manual access to said member and includes means for allowing this member to change over from the first position to the third position and preventing it changing over from one to the other of the first and second positions.

Description

La présente invention concerne un dispositif pour l'interdiction sélective et/ou partielle d'un ou plusieurs modes d'actionnement d'organes manuels de commande équipant un appareil.The present invention relates to a device for the selective and / or partial prohibition of one or more modes of actuation of manual control members fitted to an apparatus.

Elle s'applique avantageusement, mais non exclusivement, à des appareils du type relais de surcharge à réarmement manuel et automatique généralement appelés "relais thermiques à réarmement manuel-auto".It applies advantageously, but not exclusively, to devices of the overload relay type with manual and automatic reset generally called "thermal relays with manual-auto reset".

On rappelle à ce sujet qu'un relais thermique est un appareil de protection associé à un contacteur. Il a pour but de surveiller le courant circulant dans la charge (par exemple d'un moteur), commandée par le contacteur et de provoquer l'ouverture de ce dernier en cas de surchage, c'est-à-dire pour un courant pouvant par exemple présenter une valeur comprise entre 1,05 et 1,2 fois le coutant nominal de la charge dont la valeur est indiquée par le constructeur.On this subject, it is recalled that a thermal relay is a protective device associated with a contactor. Its purpose is to monitor the current flowing in the load (for example of a motor), controlled by the contactor and to cause the opening of the latter in the event of overload, that is to say for a current which can for example, present a value between 1.05 and 1.2 times the nominal cost of the load, the value of which is indicated by the manufacturer.

Ce relais comprend généralement des éléments bimétalliques thermiquement déformables chauffés par le courant qui traverse la charge. A partir d'un certain seuil correspondant à une surcharge, ces éléments actionnent un dispositif de déclenchement qui commande l'ouverture d'un contacteur.This relay generally includes thermally deformable bimetallic elements heated by the current flowing through the load. From a certain threshold corresponding to an overload, these elements actuate a tripping device which controls the opening of a contactor.

Après déclenchement, le réarmement provoquant la remise en service de la charge peut s'effectuer manuellement et/ou automatiquement selon qu'il s'agit d'un relais à réarmement manuel ou d'un relais à réarmement manuel-auto.After tripping, the reset causing the load to be put back into service can be done manually and / or automatically depending on whether it is a manual reset relay or a manual-auto reset relay.

Habituellement, ce dernier type de relais comporte sur l'une des faces du boîtier, sur la face frontale ou sur la face supérieure :

  • - un bouton de réglage qui permet d'ajuster la protection au courant nominal de la charge contrôlée ;
  • - un bouton d'arrêt du relais qui agit sur un contact à ouverture ; et
  • - un bouton à double action, mobile en rotation et en translation axiale qui présente deux positions angulaires, permettant de sélecter le mode de réarmement manuel et le mode de réarmement automatique, et deux positions axiales, à savoir une position normale de repos et une position poussée (avec rappel éventuel sous l'effet d'un ressort) correspondant au réarmement.
Usually, this last type of relay comprises on one of the faces of the housing, on the front face or on the upper face:
  • - an adjustment button which allows the protection to be adjusted to the nominal current of the controlled load;
  • - a relay stop button which acts on an opening contact; and
  • - a double action button, movable in rotation and in axial translation which has two angular positions, making it possible to select the manual reset mode and the automatic reset mode, and two axial positions, namely a normal rest position and a position thrust (with possible recall under the effect of a spring) corresponding to rearming.

Il s'avère que dans ce type d'appareils, si l'on ne prend pas suffisamment de précautions et que l'on effectue, lors du réarmement manuel une action provoquant à la fois une pousée et une rotation du bouton à double action, on peut changer malencontreusement le choix initial du mode de réarmement.It turns out that in this type of device, if we do not take enough precautions and we perform, during manual reset an action causing both a push and a rotation of the double action button, the initial choice of rearmament mode can unfortunately be changed.

L'invention a donc plus particulièrement pour but de supprimer ce type d'inconvénients.The invention therefore more particularly aims to eliminate this type of drawback.

A cet effet, elle propose, d'une façon générale, un dispositif d'interdiction sélective apte à équiper un appareil logé dans un boîtier dont l'une des faces comprend au moins un organe de commande manuel à fonctions multiples pouvant passer d'une première position correspondant à une première fonction à une deuxième position correspondant à une deuxième fonction et, de l'une au moins de ces deux positions, à une troisième position correspondant à une troisième fonction, ledit organe étant associé à un capot. Un tel dispositif est connu, par exemple, du document DE-A 2 950 438.To this end, it generally proposes a selective prohibition device capable of equipping a device housed in a housing, one of the faces of which comprises at least one manual control member with multiple functions which can be switched from one first position corresponding to a first function to a second position corresponding to a second function and, from at least one of these two positions, to a third position corresponding to a third function, said member being associated with a cover. Such a device is known, for example, from document DE-A 2 950 438.

Selon l'invention, ce dispositif est plus particulièrement caractérisé en ce que le capot est monté basculant sur ledit boîtier, de manière à pouvoir s'appliquer en position rabattue contre ladite face, ce capot étant conformé de manière à permettre l'accès manuel à l'organe d'actionnement et comprenant des moyens pour autoriser le passage de cet organe d'actionnement des deux premières positions à la troisième position, tout en interdisant son passage de l'une à l'autre de ces deux premières positions.According to the invention, this device is more particularly characterized in that the cover is pivotally mounted on said housing, so that it can be applied in the folded position against said face, this cover being shaped so as to allow manual access to the actuating member and comprising means for authorizing the passage of this actuating member from the first two positions to the third position, while preventing its passage from one to the other of these two first positions.

Avantageusement, lesdits moyens équipant le capot peuvent consister en des moyens de détrompage coopérant avec des moyens de détrompage correspondants prévus sur l'organe de commande.Advantageously, said means equipping the cover may consist of polarization means cooperating with corresponding polarization means provided on the control member.

Selon un mode d'exécution de l'invention, l'organe d'actionnement consiste en un bouton s'étendant en saillie sur ladite face, ce bouton étant mobile en rotation entre deux positions angulaires et en translation le long de son axe de rotation. Dans ce cas, le capot présente une découpe de forme appropriée pour laisser le passage du bouton, tandis que la forme du bouton est prévue de manière à coopérer avec le bord de ladite découpe pour faire en sorte qu'en position rabattue du capot, le bouton ne puisse pas passer d'une position angulaire à l'autre tout en pouvant être déplacé en translation.According to one embodiment of the invention, the actuating member consists of a button projecting from said face, this button being movable in rotation between two angular positions and in translation along its axis of rotation . In this case, the cover has a cutout of a suitable shape to allow the passage of the button, while the shape of the button is provided so as to cooperate with the edge of said cutout so that in the folded position of the cover, the button cannot pass from one angular position to another while being able to be moved in translation.

A cet effet, ladite découpe et ledit bouton peuvent présenter, l'un, au moins une forme saillante, et l'autre, une forme rentrante adaptée pour recevoir ladite forme saillante dans l'une et/ou l'autre des deux positions angulaires du bouton.To this end, said cutout and said button may have, one, at least one protruding shape, and the other, a re-entrant shape adapted to receive said protruding shape in one and / or the other of the two angular positions. button.

Bien entendu, le capot peut servir à interdire l'accès, par recouvrement, à d'autres organes d'actionnement de l'appareil. Il peut en outre comprendre d'autres évidements autorisant un accès sélectif à une partie seulement des organes d'actionnement de l'appareil.Of course, the cover can be used to prevent access, by overlap, to other actuating members of the device. It may also include other recesses allowing selective access to only part of the actuating members of the device.

Des modes de réalisation de l'invention seront décrits ci-après, à titre d'exemples non limitatifs, avec référence aux dessins annexés dans lesquels :

  • La figure 1 est une vue de la face frontale (verticale) d'un relais équipé d'un capot selon l'invention, en position rabattue ;
  • La figure 2 est une vue de côté du relais représenté figure 1, capot partiellement ouvert ;
  • La figure 3 est une vue de dessus d'un relais dont la face supérieure, portant les organes de manoeuvre et de réglage est équipée d'un capot selon l'invention.
Embodiments of the invention will be described below, by way of nonlimiting examples, with reference to the appended drawings in which:
  • Figure 1 is a view of the front face (vertical) of a relay equipped with a cover according to the invention, in the folded position;
  • Figure 2 is a side view of the relay shown in Figure 1, cover partially open;
  • Figure 3 is a top view of a relay whose upper face, carrying the actuating and adjusting members is equipped with a cover according to the invention.

Les figures 1 et 2 représentent schématiquement un relais thermique à réarmement "manuel-auto" logé dans un boîtier 1 dont la face frontale verticale 2 est munie d'un bouton de réglage de courant 3, d'un bouton d'arrêt 4 et d'un bouton de sélection/réarmement 5.Figures 1 and 2 schematically represent a thermal relay with "manual-auto" reset housed in a housing 1 whose vertical front face 2 is provided with a current adjustment button 3, a stop button 4 and d '' a selection / reset button 5.

Comme cela apparaît sur là figure 1, la face antérieure du bouton de réglage de courant 3 s'étend sensiblement dans le plan de la face 2. Ce bouton 3 est mobile en rotation et peut comprendre une fente permettant son actionnement, par exemple à l'aide d'un tournevis.As shown in FIG. 1, the front face of the current adjustment knob 3 extends substantially in the plane of the face 2. This knob 3 is movable in rotation and can comprise a slot allowing its actuation, for example using a screwdriver.

Par contre, le bouton d'arrêt 4 qui est mobile en translation, à la façon d'un poussoir, est en saillie par rapport à la face 2.On the other hand, the stop button 4 which is movable in translation, in the manner of a pusher, is projecting relative to the face 2.

Il en est de même en ce qui concerne le bouton de sélection-réarmement 5 qui présente, quant à lui, deux types d'actionnement, à savoir :

  • - un premier type d'actionnement par rotation permettant son passage d'une position angulaire M correspondant au mode réarmement manuel, à une position angulaire A correspondant au réarmement automatique, et
  • - un deuxième type d'actionnement, par translation perpendiculairement à la face 2, à la façon d'un poussoir, qui permet d'effectuer le réarmement manuel lorsque le mode réarmement manuel a été sélecté.
The same applies to the selection-reset button 5, which has two types of actuation, namely:
  • a first type of actuation by rotation allowing it to pass from an angular position M corresponding to the manual reset mode, to an angular position A corresponding to the automatic reset, and
  • - A second type of actuation, by translation perpendicular to the face 2, in the manner of a pusher, which allows manual reset to be carried out when the manual reset mode has been selected.

Par ailleurs, la face verticale 2 du boîtier 1 est munie d'un capot transparent relevable 6, articulé sur le boîtier 1 grâce à des tourillons 7, 8 et qui, en position rabattue, vient recouvrir le bouton de réglage de courant 3 tout en permettant la vue de ce réglage et l'accès au bouton d'arrêt 4.Furthermore, the vertical face 2 of the housing 1 is provided with a transparent lifting cover 6, articulated on the housing 1 by means of pins 7, 8 and which, in the folded position, covers the current adjustment button 3 while allowing the view of this setting and access to the stop button 4.

Ce capot 6 est en outre muni d'une ouverture 9 pour le passage du bouton de sélection/réarmement 5, ainsi que d'un dispositif de fermeture 10 qui coopère avec un dispositif homologue 11 du boîtier afin de la maintenir en position rabattue et d'un dispositif de plombage, assurant l'inviolabilité de la fermeture.This cover 6 is further provided with an opening 9 for the passage of the selection / reset button 5, as well as a closing device 10 which cooperates with a homologous device 11 of the housing in order to keep it in the folded position and d '' a sealing device, ensuring the inviolability of the closure.

Dans cet exemple, le bouton de sélection/réarmement 5, en partie cylindrique, présente une forme de détrompage, en l'occurence, une portion angulaire saillante à 90°, 12, tandis que l'ouverture 9 présente une forme hémicirculaire prolongée par une partie rectangulaire dont les deux angles droits correspondent respectivement aux deux positions angulaires A et M du bouton. La largeur de la partie rectangulaire est égale au diamètre de la forme hémicirculaire et est légèrement supérieure au diamètre du bouton, de sorte qu'il n'est pas possible à ce dernier de passer de l'une à l'autre de ces deux positions angulaires A, M sans soulever le capot 6.In this example, the selection / reset button 5, partly cylindrical, has a polarizing shape, in this case, an angular portion projecting at 90 ° , 12, while the opening 9 has a semicircular shape extended by a rectangular part whose two right angles correspond respectively to the two angular positions A and M of the button. The width of the rectangular part is equal to the diameter of the semicircular shape and is slightly greater than the diameter of the button, so that it is not possible for the latter to switch from one of these two positions to the other. angular A, M without lifting the cover 6.

De ce fait, la sélection du mode de réarmement auto ou manuel ne peut s'effectuer que capot levé ainsi d'ailleurs que l'affichage du réglage du courant.Therefore, the selection of the auto or manual reset mode can only be carried out with the hood raised as well as the display of the current setting.

Ce détrompage est tel que lorsque le bouton 5 est sélectionné sur M (mode manuel), il est possible d'effectuer une pression sur ce bouton 5 pour obtenir le réarmement sans risquer de provoquer la rotation de celui-ci.This keying is such that when the button 5 is selected on M (manual mode), it is possible to press this button 5 to obtain the reset without risking causing the rotation thereof.

Ce dispositif permet donc à l'installateur d'effectuer le réglage du courant et le choix du mode de réarmement lors de la mise en route.This device therefore allows the installer to adjust the current and choose the reset mode during start-up.

Une fois ces choix effectués, la fermeture du capot, avec plombage éventuel, évite toute fausse manoeuvre lors du réarmement et l'intervention abusive d'une personne non autorisée.Once these choices have been made, closing the cover, with possible sealing, avoids any false maneuver during rearming and the improper intervention of an unauthorized person.

Dans l'exemple représenté sur la figure 3, le bouton de réglage du courant 3', le bouton d'arrêt 4' et le bouton de réarmement 5' sont portés par la face supérieure 13 du boîtier 1.In the example shown in FIG. 3, the current adjustment button 3 ', the stop button 4' and the reset button 5 'are carried by the upper face 13 of the housing 1.

Le bouton de réarmement 5' est identique avec celui représenté sur les figures 1 et 2. Par contre, il ne passe pas au travers du capot 6' mais coopère pour le détrompage avec une découpe 14 formant une région angulaire rentrante à angle droit.The reset button 5 ′ is identical to that shown in FIGS. 1 and 2. On the other hand, it does not pass through the cover 6 ′ but cooperates for the coding with a cutout 14 forming a re-entrant angular region at right angles.

Dans cet exemple, le capot 6' présente une ouverture 15 au travers de laquelle passe le bouton d'arrêt 4'.In this example, the cover 6 'has an opening 15 through which the stop button 4' passes.

Malgré ces légères différences, le mode d'utilisation de ce dispositif demeure le même que celui précédemment décrit.Despite these slight differences, the mode of use of this device remains the same as that previously described.

Claims (7)

1. A device for selectively and/or partially preventing one or more actuating modes of at least one manual control member (5) equipping one of the faces (2) of the case (1) of an apparatus, said member (5) having multiple functions and being able to pass from a first position (M) corresponding to a first function, to a second position (A) corresponding to a second function and, from one at least of these two positions (A, M), to a third position corresponding to a third function, and said member (5) being associated with a cover (6), characterized in that said cover (6) is mounted for pivoting on said case (1) so as to be applied in the closed down position against said face (2), this cover (6) being formed so as to allow manual access to the control member (5) and including means for allowing this control member (5) to change over from the first two positions (A, M) to the third position, while preventing it from changing over from one to the other of these first two positions (A, M).
2. The device as claimed in claim 1, characterized in that said means equipping the cover (6) consist of foolproof means cooperating with corresponding foolproof means provided on the control member (5).
3. The device as claimed in one of claims 1 and 2, characterized in that said control member consists of a knob (5) projecting from said face (2), this knob (5) being rotatable between two angular positions (A, M) and movable in translation along its rotational axis, characterized in that said cover (6) has a cut out (9) of appropriate shape for letting said knob (5) pass therethrough, whereas the shape of the knob (5) is provided so as to cooperate with the edge of said cut out (9) so that in the closed down position of the cover (6), the knob (5) may not change over from one angular position (A, M) to the other while being able to be moved in translation.
4. The device as claimed in claim 3, characterized in that said cut out (9) and said knob (5) include, one at least a projecting shape and the other at least a re-entrant shape adapted for receiving said projecting shape in one and/or the other of the two angular positions (A, M) of said knob (5).
5. The device as claimed in one of the preceding claims, wherein said apparatus includes, in addition to said control member (5), other actuation members (4'), characterized in that said cover (6) further includes at least one other recess (15) for allowing selective access to said actuating members (4').
6. The device as claimed in one of the preceding claims, characterized in that it includes means (10, 11) for locking the cover on the case of the apparatus, in the closed down position of said cover (6).
7. The device as claimed in claim 6, characterized in that said locking means include a sealing device.
EP87401598A 1986-08-14 1987-07-08 Apparatus with a device for selective blocking of one or more positions of a manual control element Expired - Lifetime EP0256900B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87401598T ATE57026T1 (en) 1986-08-14 1987-07-08 APPARATUS WITH A DEVICE FOR SELECTIVE LOCKING OF ONE OR MORE POSITIONS OF A MANUAL CONTROL.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8611736 1986-08-14
FR8611736A FR2602889B1 (en) 1986-08-14 1986-08-14 DEVICE FOR THE SELECTIVE PROHIBITION OF ONE OR MORE MODES OF ACTUATING MANUAL CONTROLS EQUIPPED WITH AN APPARATUS

Publications (2)

Publication Number Publication Date
EP0256900A1 EP0256900A1 (en) 1988-02-24
EP0256900B1 true EP0256900B1 (en) 1990-09-26

Family

ID=9338301

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87401598A Expired - Lifetime EP0256900B1 (en) 1986-08-14 1987-07-08 Apparatus with a device for selective blocking of one or more positions of a manual control element

Country Status (20)

Country Link
US (1) US4742190A (en)
EP (1) EP0256900B1 (en)
JP (1) JP2662400B2 (en)
KR (1) KR900006460B1 (en)
AT (1) ATE57026T1 (en)
AU (1) AU596435B2 (en)
BE (1) BE1004593A3 (en)
BR (1) BR8703988A (en)
CA (1) CA1274616A (en)
CH (1) CH672033A5 (en)
DE (1) DE3765212D1 (en)
DK (1) DK166788B1 (en)
ES (1) ES2008174A6 (en)
FI (1) FI87702C (en)
FR (1) FR2602889B1 (en)
GB (1) GB2193841B (en)
IN (1) IN171351B (en)
IT (1) IT1222111B (en)
MY (1) MY100588A (en)
ZA (1) ZA875459B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9303463U1 (en) * 1993-03-09 1993-04-29 Siemens AG, 8000 München Lockable screen
USD380069S (en) * 1995-10-23 1997-06-17 Waxing Corporation Of America, Inc. Detailing polisher
US5664634A (en) * 1995-10-23 1997-09-09 Waxing Corporation Of America, Inc. Power tool
DE19548948C2 (en) * 1995-12-28 1999-10-21 Moeller Gmbh Circuit breaker with actuating handle that can be secured against being switched on
US5955939A (en) * 1997-01-10 1999-09-21 Taylor; John A. Alarm station protector capable of being accessed by disabled individuals
FR2793948B1 (en) 1999-05-20 2001-06-29 Schneider Electric Sa PROTECTION RELAY AND PROTECTED CONTROL ASSEMBLY WITH FRONT WIRING

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US2377250A (en) * 1943-02-18 1945-05-29 Gen Motors Corp Switch
US3018341A (en) * 1958-02-10 1962-01-23 Bassani Spa Locking and safety device for electric switches
US3197582A (en) * 1962-07-30 1965-07-27 Fed Pacific Electric Co Enclosed circuit interrupter
US3313896A (en) * 1966-02-25 1967-04-11 Ite Circuit Breaker Ltd Rotary handle operator for circuit breaker with improved blocking position and latching cover structure
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US3710294A (en) * 1972-03-09 1973-01-09 Doerr Electric Corp Convertible thermal safety cut-out switch
US4074091A (en) * 1976-04-12 1978-02-14 Cutler-Hammer, Inc. Interlocking operating mechanism for enclosed switchgear having defeater interlock
US4077276A (en) * 1976-10-21 1978-03-07 Knox Jr William G Actuator lever lock for a four wheel drive vehicle transfer case
CH604275A5 (en) * 1977-02-10 1978-08-31 Landis & Gyr Ag Preselectable blocking mechanism for programme switch knob
US4183257A (en) * 1978-02-24 1980-01-15 Lovenduski Timothy J Safety device for locking the position of a lever arm
JPS54129770U (en) * 1978-03-02 1979-09-08
JPS6228021Y2 (en) * 1979-08-13 1987-07-18
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Also Published As

Publication number Publication date
IT1222111B (en) 1990-08-31
AU596435B2 (en) 1990-05-03
KR880003236A (en) 1988-05-14
FI87702B (en) 1992-10-30
JPS6346526A (en) 1988-02-27
AU7575287A (en) 1988-02-18
MY100588A (en) 1990-12-15
IT8721418A0 (en) 1987-07-23
ZA875459B (en) 1988-02-04
BR8703988A (en) 1988-04-05
DK423187A (en) 1988-02-15
ATE57026T1 (en) 1990-10-15
DE3765212D1 (en) 1990-10-31
FI873516A (en) 1988-02-15
IN171351B (en) 1992-09-19
US4742190A (en) 1988-05-03
GB8716806D0 (en) 1987-08-19
FR2602889A1 (en) 1988-02-19
FR2602889B1 (en) 1988-11-10
GB2193841A (en) 1988-02-17
CH672033A5 (en) 1989-10-13
FI87702C (en) 1993-02-10
DK423187D0 (en) 1987-08-13
BE1004593A3 (en) 1992-12-22
CA1274616A (en) 1990-09-25
GB2193841B (en) 1990-01-31
KR900006460B1 (en) 1990-08-31
ES2008174A6 (en) 1989-07-16
EP0256900A1 (en) 1988-02-24
JP2662400B2 (en) 1997-10-08
DK166788B1 (en) 1993-07-12
FI873516A0 (en) 1987-08-13

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