EP0202991B1 - Protective switching device with lockable push button - Google Patents

Protective switching device with lockable push button Download PDF

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Publication number
EP0202991B1
EP0202991B1 EP19860400935 EP86400935A EP0202991B1 EP 0202991 B1 EP0202991 B1 EP 0202991B1 EP 19860400935 EP19860400935 EP 19860400935 EP 86400935 A EP86400935 A EP 86400935A EP 0202991 B1 EP0202991 B1 EP 0202991B1
Authority
EP
European Patent Office
Prior art keywords
button
base
push
locking member
front face
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.)
Expired - Lifetime
Application number
EP19860400935
Other languages
German (de)
French (fr)
Other versions
EP0202991A3 (en
EP0202991A2 (en
Inventor
Serge Guenin
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.)
Telemecanique SA
Original Assignee
La Telemecanique Electrique SA
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 La Telemecanique Electrique SA filed Critical La Telemecanique Electrique SA
Publication of EP0202991A2 publication Critical patent/EP0202991A2/en
Publication of EP0202991A3 publication Critical patent/EP0202991A3/en
Application granted granted Critical
Publication of EP0202991B1 publication Critical patent/EP0202991B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • H01H9/28—Interlocking, locking, or latching mechanisms for locking switch parts by a key or equivalent removable member
    • H01H9/281—Interlocking, locking, or latching mechanisms for locking switch parts by a key or equivalent removable member making use of a padlock
    • H01H9/282—Interlocking, locking, or latching mechanisms for locking switch parts by a key or equivalent removable member making use of a padlock and a separate part mounted or mountable on the switch assembly and movable between an unlocking position and a locking position where it can be secured by the padlock
    • H01H9/283—Interlocking, locking, or latching mechanisms for locking switch parts by a key or equivalent removable member making use of a padlock and a separate part mounted or mountable on the switch assembly and movable between an unlocking position and a locking position where it can be secured by the padlock the part being removable

Definitions

  • the present invention relates to an electrical protection switch device provided with separable contacts, automatic tripping means for opening the contacts on fault and on and off push-buttons for manual opening and closing of the contacts.
  • switch devices are sometimes installed in the same cabinet to constitute a centralized control. It is therefore not easy to record such or such a switching device individually except by placing it in a specific envelope arranged to allow individual locking. This arrangement is bulky and complicated.
  • the invention as defined in rev.1 aims to avoid these drawbacks using simple means particularly well suited to protective switch devices of the type described.
  • the push button on has a through recess which is uncovered in the extended position of said button; a removable member for locking the operating push button is provided for being inserted into the recess of the button parallel to the front face of the device and in front of this face; the removable locking member carries a grip range, a stop element against the button and a range provided with at least one orifice for the passage of a padlock.
  • the individual locking thus obtained is particularly simple, compact, and when the switch device is of the modular type, suitable for mounting the device in a box window.
  • the removable locking member is constituted by a flat monobloc bar of which a square part constitutes the gripping range and the stop element, the other part of the bar carrying three orifices for the passage of padlocks from various trades.
  • the flat bar and the associated recess of the start button are preferably perpendicular to the front face of the device housing and, when the housing consists of a base and a removable cover, can advantageously be used to avoid disassembly of the cover vis-à-vis the base.
  • Figure 1 shows in perspective a protective circuit breaker for motor or other load according to the invention.
  • Figures 2 and 3 show in plan the position of the on and off pushbuttons 30 in the respective off and on positions.
  • Figure 4 shows a front elevation of the circuit breaker of Figure 1 with the bar in the locked position.
  • Figure 5 shows in plan the bar housed in the recess of the start button.
  • Figures 6 and 7 show a front view and a sectional view along VII-VII of the locking bar.
  • the protection device illustrated in FIG. 1 is a motor protection circuit breaker comprising an insulating housing 10 of modular type which includes terminals for the connection of electrical conductors to an energy source and to a motor; the device is three-pole and has for each pole separable contacts and associated magnetic and / or thermal means for automatic triggering.
  • the housing 10 consists of a base 11 and a cover 12 which is attached and removably attached to the base.
  • start push button 14 and stop push button 15 are provided on the front face 13 of the cover 12 of the housing a start push button 14 and a stop push button 15 carried alternately in a depressed position and in an extended position relative to the front face 13 of the circuit breaker to allow manual control opening and closing of contacts.
  • FIG. 2 shows the on button 14 in its resting position 14A and the stop button 15 in its depressed working position 15B; and in FIG. 3, the on button 14 in its depressed working position 14B and the off button in its released position from rest 15A.
  • a locking bar 20 of the step push-button 14 in the out position 14A of rest of said button.
  • the bar 20 cooperates for this purpose with a narrow and through slot 21 formed in the operating button perpendicular to the front face 13 of the circuit breaker.
  • the bar 20 has a grip area 22, a stop element 23 against the start button and a pad support area 24 provided with three holes 25 for the passage of three padlocks, one of which is shown in dashes in FIG. 4 .
  • the arrangement of the slot 21 and of the general plan of the bar 20 perpendicular to the front face 13 of the circuit breaker and in front of it contributes to facilitate the fitting of the padlocks; on the other hand, in particular when only the front face 13 of the circuit breaker protrudes into the window 26 of the front wall 27 of a box (see FIGS. 1 and 5), the aforementioned arrangement makes it easy to install and remove padlocks.
  • the bar is chamfered at 28 to facilitate its introduction into the through slot 21 of the button 14 and has a square fold 29 to form the gripping area 22 and the stop element 23.
  • the device described operates in the following manner.
  • the circuit breaker having been automatically or manually put in the open position of the contacts (FIGS. 1 and 2), the operator who wishes to lock the state of rest of the circuit breaker puts the bar 20 vertically in the recess 21; it descends until its square fold 29 abuts against the upper face of the button 14; in this stop position, the pad 24 carrying the orifices 25 is entirely below the button and therefore allows the operator to introduce the padlock assigned to it in one of the three orifices 25 (FIG. 4) to lock the button in position 14A and thus prevent any closing of the contacts.
  • the cover 12 of the housing 10 being fixed to the base by means such as a screw 30, and the power button being secured via a support with the base 11, it is understood that the locking bar simultaneously serves to hold the cover in position on the base.
  • the removable locking member can be constituted by an elongated member having a thinned part able to pass through a recess of the start button.
  • the recess is a slot, this can be arranged parallel to the front face of the circuit breaker.

Landscapes

  • Switch Cases, Indication, And Locking (AREA)
  • Breakers (AREA)

Description

La présente invention concerne un appareil électrique interrupteur de protection muni de contacts séparables, de moyens de déclenchement automatique pour l'ouverture des contacts sur défaut et de boutons-poussoir marche et arrêt pour l'ouverture et la fermeture manuelles des contacts.The present invention relates to an electrical protection switch device provided with separable contacts, automatic tripping means for opening the contacts on fault and on and off push-buttons for manual opening and closing of the contacts.

On connaît notamment d'après le brevet FR - 2 448 216 de tels appareils interrupteurs dont le boîtier est de forme générale prismatique et comprend un socle et un capot. Les boutons-poussoir marche et arrêt sont portés relativement à la face avant du boîtier en position enfoncée et respectivement en position sortie dans l'état marche de l'appareil st en position sortie et respectivement en position enfoncée dans l'état arrêt de l'appareil.Known in particular from patent FR-2 448 216 of such switch devices whose housing is generally prismatic in shape and comprises a base and a cover. The on and off pushbuttons are worn relative to the front face of the housing in the depressed position and respectively in the extended position in the operating state of the device and in the extended position and respectively in the depressed position in the off state of the apparatus.

Il est connu de l'art antérieur (DE-C-808137) de pouvoir verrous illes individuellement un appareil au moyen d'un organe amovible mais ce dernier ne présentant pas d'orifice pour le passage d'un cadenas il peut être facilement déverrouillé par inadvertance.It is known from the prior art (DE-C-808137) to be able to individually lock a device by means of a removable member but the latter having no orifice for the passage of a padlock it can be easily unlocked inadvertently.

PLusieurs appareils interrupteurs sont parfois installés dans une même armoire pour constituer ainsi une commande centralisée. Il n'est alors pas aisé de consigner individuellement tel ou tel appareil interrupteur sauf en le disposant dans une enveloppe spécifique agencée pour en permettre un verrouillage individuel. Cette disposition est encombrante et compliquée.Several switch devices are sometimes installed in the same cabinet to constitute a centralized control. It is therefore not easy to record such or such a switching device individually except by placing it in a specific envelope arranged to allow individual locking. This arrangement is bulky and complicated.

L'invention telle que définie dans la rev.1 a pour but d'éviter ces inconvénients à l'aide de moyens simples particulièrement bien adaptés aux appareils interrupteurs de protection du type décrit.The invention as defined in rev.1 aims to avoid these drawbacks using simple means particularly well suited to protective switch devices of the type described.

Selon l'invention, dans un tel appareil interrupteur, le bouton-poussoir marche présente un évidement traversant qui est découvert dans la position sortie dudit bouton ; un organe amovible de verrouillage du bouton-poussoir marche est prévu pour être introduit dans l'évidement du bouton parallèlement à la face avant de l'appareil et devant cette face ; l'organe amovible de verrouillage porte une plage de préhension, un élément de butée contre le bouton et une plage munie d'au moins un orifice pour le passage d'un cadenas.According to the invention, in such a switching device, the push button on has a through recess which is uncovered in the extended position of said button; a removable member for locking the operating push button is provided for being inserted into the recess of the button parallel to the front face of the device and in front of this face; the removable locking member carries a grip range, a stop element against the button and a range provided with at least one orifice for the passage of a padlock.

Le verrouillage individuel ainsi obtenu est particulièrement simple, peu encombrant, et lorsque l'appareil interrupteur est de type modulaire, adapté au montage de l'appareil dans une fenêtre de coffret.The individual locking thus obtained is particularly simple, compact, and when the switch device is of the modular type, suitable for mounting the device in a box window.

Dans un mode de réalisation préférentiel, l'organe amovible de verrouillage est constituée par une barrette plate monobloc dont une partie en équerre constitue la plage de préhension et l'élément de butée, l'autre partie de la barrette portant trois orifices pour le passage de cadenas de divers corps de métier.In a preferred embodiment, the removable locking member is constituted by a flat monobloc bar of which a square part constitutes the gripping range and the stop element, the other part of the bar carrying three orifices for the passage of padlocks from various trades.

La barrette plate et l'évidement associé du bouton marche sont de préférence perpendiculaires à la face avant du boîtier de l'appareil et, lorsque le boîtier se compose d'un socle et d'un capot amovible, peuvent avantageusement servir à éviter un démontage du capot vis-à-vis du socle.The flat bar and the associated recess of the start button are preferably perpendicular to the front face of the device housing and, when the housing consists of a base and a removable cover, can advantageously be used to avoid disassembly of the cover vis-à-vis the base.

La description qui suit en regard des dessins annexés illustre un exemple de réalisation non limitatif de l'invention.
La figure 1 représente en perspective un disjoncteur de protection pour moteur ou autre charge conforme à l'invention.
Les figures 2 et 3 montrent en plan la position des boutons-poussoirs 30 marche et arrêt dans les positions respectives arrêt et marche.
La figure 4 représente en élévation de face le disjoncteur de la figure 1 muni de la barrette en position de verrouillage.
La figure 5 montre en plan la barrette logée dans l'évidement du bouton marche.
Les figures 6 et 7 montrent une vue de face et une vue en coupe selon VII-VII de la barrette de verrouillage.The following description with reference to the accompanying drawings illustrates an example of a non-limiting embodiment of the invention.
Figure 1 shows in perspective a protective circuit breaker for motor or other load according to the invention.
Figures 2 and 3 show in plan the position of the on and off pushbuttons 30 in the respective off and on positions.
Figure 4 shows a front elevation of the circuit breaker of Figure 1 with the bar in the locked position.
Figure 5 shows in plan the bar housed in the recess of the start button.
Figures 6 and 7 show a front view and a sectional view along VII-VII of the locking bar.

L'appareil de protection illustré sur la figure 1 est un disjoncteur de protection pour moteur comprenant un boîtier 10 isolant de type modulaire qui comporte des bornes pour le raccordement de conducteurs électriques à une source d'énergie et à un moteur ; l'appareil est tripolaire et présente pour chaque pôle des contacts séparables et des moyens magnétiques et/ou thermiques associés de déclenchement automatique. Le boîtier 10 se compose d'un socle 11 et d'un capot 12 qui est rapporté et fixé de manière amovible sur le socle.The protection device illustrated in FIG. 1 is a motor protection circuit breaker comprising an insulating housing 10 of modular type which includes terminals for the connection of electrical conductors to an energy source and to a motor; the device is three-pole and has for each pole separable contacts and associated magnetic and / or thermal means for automatic triggering. The housing 10 consists of a base 11 and a cover 12 which is attached and removably attached to the base.

Il est prévu sur la face avant 13 du capot 12 du boîtier un bouton-poussoir marche 14 et un bouton-poussoir arrêt 15 portés alternativement dans une position enfoncée et dans une position sortie relativement à la face avant 13 du disjoncteur pour permettre de commander manuellement l'ouverture et la fermeture des contacts.There is provided on the front face 13 of the cover 12 of the housing a start push button 14 and a stop push button 15 carried alternately in a depressed position and in an extended position relative to the front face 13 of the circuit breaker to allow manual control opening and closing of contacts.

On a représenté sur la figure 2 le bouton marche 14 dans sa position sortie de repos 14A et le bouton arrêt 15 dans sa position enfoncée de travail 15B ; et sur la figure 3 le bouton marche 14 dans sa position enfoncée de travail 14B et le bouton arrêt dans sa position sortie de repos 15A.FIG. 2 shows the on button 14 in its resting position 14A and the stop button 15 in its depressed working position 15B; and in FIG. 3, the on button 14 in its depressed working position 14B and the off button in its released position from rest 15A.

Selon l'invention, il est prévu une barrette de verrouillage 20 du bouton-poussoir marche 14 dans la position sortie 14A de repos dudit bouton. La barrette 20 coopère à cet effet avec une fente traversante et étroite 21 ménagée dans le bouton marche perpendiculairement à la face avant 13 du disjoncteur. La barrette 20 comporte une plage de préhension 22, un élément de butée 23 contre le bouton marche et une plage 24 de support de cadenas munie de trois orifices 25 pour le passage de trois cadenas dont l'un est figuré en tirets sur la figure 4.According to the invention, there is provided a locking bar 20 of the step push-button 14 in the out position 14A of rest of said button. The bar 20 cooperates for this purpose with a narrow and through slot 21 formed in the operating button perpendicular to the front face 13 of the circuit breaker. The bar 20 has a grip area 22, a stop element 23 against the start button and a pad support area 24 provided with three holes 25 for the passage of three padlocks, one of which is shown in dashes in FIG. 4 .

La disposition de la fente 21 et du plan général de la barrette 20 perpendiculairement à la face avant 13 du disjoncteur et en avant de celle-ci contribue à faciliter la pose des cadenas ; d'autre part, en particulier lorsque seule la face avant 13 du disjoncteur dépasse dans la fenêtre 26 de la paroi avant 27 d'un coffret (voir figures 1 et 5), la disposition précitée permet d'effectuer facilement la pose et le retrait des cadenas.The arrangement of the slot 21 and of the general plan of the bar 20 perpendicular to the front face 13 of the circuit breaker and in front of it contributes to facilitate the fitting of the padlocks; on the other hand, in particular when only the front face 13 of the circuit breaker protrudes into the window 26 of the front wall 27 of a box (see FIGS. 1 and 5), the aforementioned arrangement makes it easy to install and remove padlocks.

La barrette est chanfreinée en 28 pour faciliter son introduction dans la fente traversante 21 du bouton 14 et présente un pli d'équerre 29 pour former la plage de préhension 22 et l'élément de butée 23.The bar is chamfered at 28 to facilitate its introduction into the through slot 21 of the button 14 and has a square fold 29 to form the gripping area 22 and the stop element 23.

Le dispositif décrit fonctionne de la manière suivante. Le disjoncteur ayant été mis automatiquement ou manuellement dans la position d'ouverture des contacts (figures 1 et 2), l'opérateur qui désire verrouiller l'état de repos du disjoncteur enfile la barrette 20 verticalement dans l'évidement 21 ; celle-ci descend jusqu'à ce que son pli d'équerre 29 vienne en butée contre la face supérieure du bouton 14 ; dans cette position de butée, la plage 24 portant les orifices 25 est entièrement au-dessous du bouton et permet donc à l'operateur d'introduire le cadenas qui lui est affecté dans l'un des trois orifices 25 (figure 4) pour verrouiller le bouton dans la position 14A et empêcher ainsi toute fermeture des contacts.The device described operates in the following manner. The circuit breaker having been automatically or manually put in the open position of the contacts (FIGS. 1 and 2), the operator who wishes to lock the state of rest of the circuit breaker puts the bar 20 vertically in the recess 21; it descends until its square fold 29 abuts against the upper face of the button 14; in this stop position, the pad 24 carrying the orifices 25 is entirely below the button and therefore allows the operator to introduce the padlock assigned to it in one of the three orifices 25 (FIG. 4) to lock the button in position 14A and thus prevent any closing of the contacts.

Le couvercle 12 du boîtier 10 étant fixé au socle par des moyens tels qu'une vis 30, et le bouton-marche étant solidarisé via un support avec le socle 11, on conçoit que la barrette de verrouillage sert simultanément à maintenir le couvercle en position sur le socle.The cover 12 of the housing 10 being fixed to the base by means such as a screw 30, and the power button being secured via a support with the base 11, it is understood that the locking bar simultaneously serves to hold the cover in position on the base.

Il va de soi que l'on peut apporter à l'appareil décrit des modifications restant dans le domaine des équivalents techniques sans sortir du cadre de l'invention. Ainsi l'organe amovible de verrouillage peut être constitué par un organe allongé présentant une partie amincie apte à traverser un évidement du bouton marche. Lorsque l'évidement est une fente, celle-ci peut être disposée parallèlement à la face avant du disjoncteur.It goes without saying that it is possible to make modifications to the described device in the field of technical equivalents without departing from the scope of the invention. Thus the removable locking member can be constituted by an elongated member having a thinned part able to pass through a recess of the start button. When the recess is a slot, this can be arranged parallel to the front face of the circuit breaker.

Claims (5)

  1. A protective switching apparatus, comprising :
    - a prismatic isolating case (10) which houses terminals for connecting electric conductors, separable contacts and associated magnetic and/or thermal tripping means for opening the contacts,
    - the case having a front face (13) provided with an ON push-button (14) and an OFF push-button (15), provided for voluntary opening and closing of the contacts and carried alternately in the retracted and protruding position with respect to said face by a translation perpendicular thereto,
    characterized by the fact that :
    - the ON push-button (14) has a through cavity (21) which is uncovered in the protruding position (14A) of said button,
    - a removable locking member (20) is provided for insertion into the cavity of the button, parallel to the front face (13) of the apparatus and in front thereof,
    - the removable locking member comprises a gripping portion (22), a part (23) abutting against the button and a portion (24) provided with at least one orifice (25) for passing therethrough a padlock.
  2. The apparatus as claimed in claim 1,
    characterized by the fact that the removable locking member (20) is a strip bent at right angles, a bent portion of which (29) forms both the gripping portion (22) and an abutment part (23) of the strip against the button.
  3. The apparatus as claimed in claim 1 or 2,
    characterized by the fact that the case (10) of the apparatus comprises in a known manner a base (11) and a cover (12) separate from the base, the ON push-button (14) being fixedly mounted in a support connected to the base, the removable locking member (20) forming a safety means for maintaining the cover on the base.
  4. The apparatus as claimed in claims 2 and 3, characterized in that the strip (20) is formed by a flat, bent single piece, provided with three orifices (25) for passing therethrough padlocks and adapted for being inserted into the slot (21) of the ON button (14), perpendicularly to the direction of translation thereof.
  5. The apparatus as claimed in one of claims 1 to 4, characterized in that the cavity (21) in the ON pushbutton (14) is a slot disposed perpendicularly with respect to the front face (13) of the case.
EP19860400935 1985-05-20 1986-04-29 Protective switching device with lockable push button Expired - Lifetime EP0202991B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8507531A FR2582144B3 (en) 1985-05-20 1985-05-20 PROTECTIVE SWITCHING APPARATUS WITH LOCKABLE PUSH BUTTON
FR8507531 1985-05-20

Publications (3)

Publication Number Publication Date
EP0202991A2 EP0202991A2 (en) 1986-11-26
EP0202991A3 EP0202991A3 (en) 1988-03-09
EP0202991B1 true EP0202991B1 (en) 1991-03-27

Family

ID=9319394

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19860400935 Expired - Lifetime EP0202991B1 (en) 1985-05-20 1986-04-29 Protective switching device with lockable push button

Country Status (4)

Country Link
EP (1) EP0202991B1 (en)
DE (1) DE3678333D1 (en)
ES (1) ES296699Y (en)
FR (1) FR2582144B3 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5079390A (en) * 1991-04-03 1992-01-07 Occidental Chemical Corporation Lock-out device for circuit breakers

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE808137C (en) * 1949-11-01 1951-07-12 Schiele Industriewerke G M B H Locking device for manual switching means on electrical devices
US2673259A (en) * 1951-11-14 1954-03-23 Appleton Electric Co Locking device for push-button stations
DE8227325U1 (en) * 1982-09-29 1983-03-10 Brown, Boveri & Cie Ag, 6800 Mannheim Electrical switchgear with locking device
US4513180A (en) * 1984-01-24 1985-04-23 Siemens-Allis, Inc. Circuit breaker operator and interlock

Also Published As

Publication number Publication date
FR2582144B3 (en) 1987-07-17
ES296699U (en) 1988-02-01
DE3678333D1 (en) 1991-05-02
FR2582144A1 (en) 1986-11-21
ES296699Y (en) 1988-11-01
EP0202991A3 (en) 1988-03-09
EP0202991A2 (en) 1986-11-26

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