EP0372142A1 - Device for electrical protection comprising clamping means of a calibrating srew for the bimetal element of a thermal circuit breaker in a box. - Google Patents

Device for electrical protection comprising clamping means of a calibrating srew for the bimetal element of a thermal circuit breaker in a box. Download PDF

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Publication number
EP0372142A1
EP0372142A1 EP88403077A EP88403077A EP0372142A1 EP 0372142 A1 EP0372142 A1 EP 0372142A1 EP 88403077 A EP88403077 A EP 88403077A EP 88403077 A EP88403077 A EP 88403077A EP 0372142 A1 EP0372142 A1 EP 0372142A1
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EP
European Patent Office
Prior art keywords
clip
screw
hole
housing
branches
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
EP88403077A
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German (de)
French (fr)
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EP0372142B1 (en
Inventor
Jean-Marie Roiatti
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.)
Hager Electro SAS
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Hager Electro SAS
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Filing date
Publication date
Application filed by Hager Electro SAS filed Critical Hager Electro SAS
Priority to AT88403077T priority Critical patent/ATE106161T1/en
Priority to DE3889731T priority patent/DE3889731T2/en
Priority to EP88403077A priority patent/EP0372142B1/en
Priority to ES88403077T priority patent/ES2052764T3/en
Publication of EP0372142A1 publication Critical patent/EP0372142A1/en
Application granted granted Critical
Publication of EP0372142B1 publication Critical patent/EP0372142B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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
    • H01H71/74—Means for adjusting the conditions under which the device will function to provide protection
    • H01H71/7427—Adjusting only the electrothermal mechanism

Definitions

  • the present invention relates to a device for blocking the bimetal adjustment screw of a thermal disjunction mechanism mounted in a housing of an electrical protection device.
  • the locking of the bimetal adjustment screw is usually ensured by resin or varnish which is introduced, using a metering device, into the hole of the housing containing the adjustment screw so that the resin or the varnish reaches the overlap of the threads of the screw and of the tapped element and this in sufficient quantity to ensure blocking definitively. This process does not however have very high reliability.
  • drying time is more or less long and, throughout it, a constant immobility is required, which complicates the operation.
  • the object of the present invention is to remedy these drawbacks by proposing a device for blocking the bimetal adjusting screw which allows instant, secure and final locking of the adjusting screw, once the adjustment has been made.
  • Another object of the invention is to provide a device which is easy to implement and inexpensive.
  • the present invention relates to a device for blocking the bimetal adjustment screw of a thermal cut-off mechanism mounted in a housing of an electrical protection device, mechanism in which the adjustment screw is accessible from the outside. by a hole in the housing in which the screw can be turned in one direction or the other with respect to a stationary complementary tapped element, in which the screw is engaged, a mechanism in which the adjustment is condemned by blocking the adjustment screw, device characterized in that it comprises a clip arranged so as to come to rest in the hole in the housing and to prevent any movement of the adjusting screw.
  • the clip according to the invention comprises means for tightening the screw and, in particular, the clip is tightened against the screw by the ramp effect on the walls of the hole in the housing.
  • the clip has a contact surface for the screw, having a succession of reliefs and grooves whose pitch is substantially identical to that of the thread of the screw. This arrangement optimizes tightening.
  • the clip may have means for snapping into the hole in the housing, to prevent its removal.
  • the clip and the hole in the housing preferably have complementary means for blocking the shape of the clip.
  • the clip has a substantially "U” shape and the branches of the "U” have a rectangular section.
  • the branches of the clip may comprise, turned outwards, snap stops intended to cooperate with reliefs of the hole to prevent the clip from being removed.
  • the free end of the branches of the clip preferably comprises a chamfer intended to cooperate with the relief of the hole to ensure the tightening of the screw by ramp effect.
  • FIG. 1 shows a perspective view of a clip 1 according to the invention.
  • the clip 1 comprises a parallelepiped base 2 from which extend two branches 3 symmetrical and parallel to each other, leaving two lateral zones 4 and a central zone 5 on the face, of the parallelepiped base 2, which carries them.
  • the branches 3 comprise, at a distance from the parallelepiped base 2, a projecting or abutment part 6 provided with a face 7 parallel to and opposite the corresponding lateral zone 4 and with an inclined face 8 turned substantially opposite to said lateral zone 4.
  • the projecting parts 6 extend over the entire width of the branches 3, the parallel faces 7 having a surface less than that of the lateral zones 4.
  • the branches 3 then have a section 9 provided with a succession of reliefs and grooves, the sections 9 of the two branches 3 being opposite one another.
  • the pitch of this succession of reliefs and grooves is substantially identical to that of the thread of the adjusting screw 10 (see Figures 2 and 3).
  • the branches have, at their free end 11, a chamfer 12 which forms an obtuse angle with the external face of said branch.
  • FIGS 2 and 3 are partial views of the housing of an electrical protection device provided with the locking device according to the invention.
  • the hole in the housing 13 is delimited by two flat walls 14 which are parallel to the bottom 15 of the housing 13 and by two walls 16 which are symmetrical and perpendicular to the faces 14 and have reliefs.
  • the walls 14, 16 extend from the mouth 17 of the hole towards a housing 18 which receives, immobile in rotation and in translation, a nut 19 in which is housed the adjusting screw 10 intended for adjusting the bimetallic strip of the thermal disjunction mechanism.
  • the mouth 17 has the shape of a parallelepiped whose long sides are oriented parallel to the bottom 15 of the housing.
  • the walls 16 then comprise a relief 20 provided, on the side of the mouth 17, with a chamfer 21.
  • the relief 20 is extended by a reinforcement 22 which is provided, opposite said relief 20, with a chamfer 23 extending beyond said relief, towards the median plane of the housing perpendicular to the bottom 15 of the housing.
  • the walls 16 then have a flat part 24 parallel to said plane, then a ramp relief 25 and then open into the housing 18 of the nut 19.
  • the parallelepiped base 2 When the clip 1 is in place in the hole in the housing, the parallelepiped base 2 is entirely contained in the mouth 17.
  • the portion of the branches 3 located beyond the stops 6 extends substantially in the vicinity of the flat part 24, the succession of reliefs and grooves being applied against the thread of the adjustment screw 10 and the end of the branches 3 being curved in the direction of the adjusting screw 10 under the action of the ramp 25.
  • the snap and the ramp effect preferably occur concomitantly.

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  • Breakers (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
  • Connection Of Plates (AREA)

Abstract

In order to stop the calibration of the calibrating screw (10) for the bimetal element of a thermal circuit breaker mounted in a box (13), which screw (10) is accessible from outside through a hole in the box inside which the screw can be turned in one or other direction relative to a stationary, complementary internally threaded element in which the screw is engaged, a clip (1) has been provided which is arranged so as to lock itself in the hole of the box and to prevent any movement of the calibrated screw (10). <IMAGE>

Description

La présente invention a trait à un dispositif de blocage de la vis de réglage de la bilame d'un mécanisme de disjonction thermique monté dans un boîtier d'un appareil de protection électrique.The present invention relates to a device for blocking the bimetal adjustment screw of a thermal disjunction mechanism mounted in a housing of an electrical protection device.

Le blocage de la vis de réglage de la bilame est habituellement assuré par de la résine ou du vernis que l'on introduit, à l'aide d'un doseur, dans le trou du boîtier contenant la vis de réglage de façon que la résine ou le vernis atteigne le chevauchement des filetages de la vis et de l'élément taraudé et ceci en quantité suffisante pour assurer le blocage de façon définitive. Ce procédé ne présente cependant pas une fiabilité très élevée.The locking of the bimetal adjustment screw is usually ensured by resin or varnish which is introduced, using a metering device, into the hole of the housing containing the adjustment screw so that the resin or the varnish reaches the overlap of the threads of the screw and of the tapped element and this in sufficient quantity to ensure blocking definitively. This process does not however have very high reliability.

En outre, le temps de séchage est plus ou moins long et, tout au long de celui-ci une constante immobilité est exigée, ce qui complique l'opération.In addition, the drying time is more or less long and, throughout it, a constant immobility is required, which complicates the operation.

Ces difficultés rendent le résultat aléatoire et il n'est pas rare de constater un défaut de blocage pour l'un des motifs énoncés ci-dessus.These difficulties make the result random and it is not uncommon to find a defect in blocking for one of the reasons stated above.

La présente invention a pour but de remédier à ces inconvénients, en proposant un dispositif de blocage de la vis de réglage de la bilame qui permet un blocage instantané, sûr et définitif de la vis de réglage, une fois le réglage effectué.The object of the present invention is to remedy these drawbacks by proposing a device for blocking the bimetal adjusting screw which allows instant, secure and final locking of the adjusting screw, once the adjustment has been made.

Un autre objectif de l'invention est de fournir un dispositif qui soit facile à mettre en oeuvre et peu onéreux.Another object of the invention is to provide a device which is easy to implement and inexpensive.

La présente invention a pour objet un dispositif de blocage de la vis de réglage de la bilame d'un mécanisme de disjonction thermique monté dans un boîtier d'un appareil de protection électrique, mécanisme dans lequel la vis de réglage est accessible de l'extérieur par un trou du boîtier dans lequel la vis peut être tournée dans un sens ou dans l'autre par rapport à un élément taraudé complémentaire immobile, dans lequel la vis est engagée, mécanisme dans lequel on condamne le réglage en bloquant la vis de réglage, dispositif caractérisé en ce qu'il comprend un clip agencé de manière à venir s'immobiliser dans le trou du boîtier et à empêcher tout mouvement de la vis de réglage.The present invention relates to a device for blocking the bimetal adjustment screw of a thermal cut-off mechanism mounted in a housing of an electrical protection device, mechanism in which the adjustment screw is accessible from the outside. by a hole in the housing in which the screw can be turned in one direction or the other with respect to a stationary complementary tapped element, in which the screw is engaged, a mechanism in which the adjustment is condemned by blocking the adjustment screw, device characterized in that it comprises a clip arranged so as to come to rest in the hole in the housing and to prevent any movement of the adjusting screw.

De préférence, le clip selon l'invention comporte des moyens de serrage de la vis et, en particulier, le clip est serré contre la vis par effet de rampe sur les parois du trou du boîtier.Preferably, the clip according to the invention comprises means for tightening the screw and, in particular, the clip is tightened against the screw by the ramp effect on the walls of the hole in the housing.

Dans un mode de réalisation préféré, le clip possède une surface de contact pour la vis, présentant une succession de reliefs et de gorges dont le pas est sensiblement identique à celui du filetage de la vis. Cet agencement optimise le serrage.In a preferred embodiment, the clip has a contact surface for the screw, having a succession of reliefs and grooves whose pitch is substantially identical to that of the thread of the screw. This arrangement optimizes tightening.

Eventuellement, le clip peut présenter des moyens d'encliquetage dans le trou du boîtier, pour empêcher son retrait.Optionally, the clip may have means for snapping into the hole in the housing, to prevent its removal.

Afin d'empêcher tout mouvement de rotation du clip dans le trou du boîtier, le clip et le trou du boîtier présentent, de préférence, des moyens complémentaires pour assurer un blocage de forme du clip.In order to prevent any rotational movement of the clip in the housing hole, the clip and the hole in the housing preferably have complementary means for blocking the shape of the clip.

Dans le mode de réalisation préféré de l'invention, le clip a sensiblement une forme en "U" et les branches du "U" présentent une section rectangulaire.In the preferred embodiment of the invention, the clip has a substantially "U" shape and the branches of the "U" have a rectangular section.

Eventuellement, les branches du clip peuvent comporter, tournées vers l'extérieur, des butées d'encliquetage destinées à coopérer avec des reliefs du trou pour empêcher le retrait du clip.Optionally, the branches of the clip may comprise, turned outwards, snap stops intended to cooperate with reliefs of the hole to prevent the clip from being removed.

L' extrémité libre des branches du clip comporte, de préférence, un chanfrein destiné à coopérer avec le relief du trou pour assurer le serrage de la vis par effet de rampe.The free end of the branches of the clip preferably comprises a chamfer intended to cooperate with the relief of the hole to ensure the tightening of the screw by ramp effect.

D'autres avantages et caractéristiques de l'invention apparaîtront à la lecture de la description suivante, faite à titre d'exemple non limitatif et se référant au dessin annexé dans lequel :

  • la figure 1 représente une vue en perspective d'un clip selon l'invention,
  • la figure 2 représente une vue en coupe montrant le clip selon la figure 1 en place dans le trou du boîtier,
  • la figure 3 représente une vue en coupe prise dans un plan orthogonal par rapport à celui de la figure 2.
Other advantages and characteristics of the invention will appear on reading the following description, given by way of nonlimiting example and referring to the appended drawing in which:
  • FIG. 1 represents a perspective view of a clip according to the invention,
  • FIG. 2 represents a sectional view showing the clip according to FIG. 1 in place in the hole of the housing,
  • FIG. 3 represents a sectional view taken in a plane orthogonal to that of FIG. 2.

On se reporte à la figure 1, qui présente une vue en perspective d'un clip 1 selon l'invention.Referring to Figure 1, which shows a perspective view of a clip 1 according to the invention.

Le clip 1 comporte une base parallélépipé­dique 2 à partir de laquelle s'étendent deux branches 3 symétriques et parallèles entre elles, laissant subsister deux zones latérales 4 et une zone centrale 5 sur la face, de la base parallélépipédique 2, qui les porte. Les branches 3 comportent, à distance de la base parallélépipédique 2, une partie en saillie ou butée 6 munie d'une face 7 parallèle à et en regard de la zone latérale 4 correspondante et d'une face inclinée 8 tournée sensiblement à l'opposé de ladite zone latérale 4. Les parties en saillie 6 s'étendent sur toute la largeur des branches 3, les faces parallèles 7 présentant une surface inférieure à celle des zones latérales 4.The clip 1 comprises a parallelepiped base 2 from which extend two branches 3 symmetrical and parallel to each other, leaving two lateral zones 4 and a central zone 5 on the face, of the parallelepiped base 2, which carries them. The branches 3 comprise, at a distance from the parallelepiped base 2, a projecting or abutment part 6 provided with a face 7 parallel to and opposite the corresponding lateral zone 4 and with an inclined face 8 turned substantially opposite to said lateral zone 4. The projecting parts 6 extend over the entire width of the branches 3, the parallel faces 7 having a surface less than that of the lateral zones 4.

Les branches 3 présentent ensuite une section 9 munie d'une succession de reliefs et de gorges, les sections 9 des deux branches 3 étant en regard l'une de l'autre. Le pas de cette succession de reliefs et de gorges est sensiblement identique à celui du filetage de la vis de réglage 10 (voir figures 2 et 3).The branches 3 then have a section 9 provided with a succession of reliefs and grooves, the sections 9 of the two branches 3 being opposite one another. The pitch of this succession of reliefs and grooves is substantially identical to that of the thread of the adjusting screw 10 (see Figures 2 and 3).

Les branches comportent, à leur extrémité libre 11, un chanfrein 12 qui fait un angle obtus avec la face extérieure de ladite branche.The branches have, at their free end 11, a chamfer 12 which forms an obtuse angle with the external face of said branch.

Les figures 2 et 3 sont des vues partielles du boîtier d'un appareil de protection électrique muni du dispositif de blocage selon l'invention.Figures 2 and 3 are partial views of the housing of an electrical protection device provided with the locking device according to the invention.

Le trou du boîtier 13 est délimité par deux parois planes 14 qui sont parallèles au fond 15 du boîtier 13 et par deux parois 16 qui sont symétriques et perpendiculaires aux faces 14 et présentent des reliefs.The hole in the housing 13 is delimited by two flat walls 14 which are parallel to the bottom 15 of the housing 13 and by two walls 16 which are symmetrical and perpendicular to the faces 14 and have reliefs.

Les parois 14, 16 s'étendent de l'embouchure 17 du trou vers un logement 18 qui reçoit, de façon immobile en rotation et en translation, un écrou 19 dans lequel vient se loger la vis de réglage 10 destinée au réglage de la bilame du mécanisme de disjonction thermique.The walls 14, 16 extend from the mouth 17 of the hole towards a housing 18 which receives, immobile in rotation and in translation, a nut 19 in which is housed the adjusting screw 10 intended for adjusting the bimetallic strip of the thermal disjunction mechanism.

L'embouchure 17 a la forme d'un parallélépipède dont les grands côtés sont orientés parallèlement au fond 15 du boîtier. Les parois 16 comprennent ensuite un relief 20 muni, du côté de l'embouchure 17, d'un chanfrein 21. Le relief 20 se prolonge par un renforcement 22 qui est muni, à l'opposé dudit relief 20, d'un chanfrein 23 s'étendant au-delà dudit relief, vers le plan médian du boîtier perpendiculaire au fond 15 du boîtier. Les parois 16 présentent ensuite une partie plane 24 parallèle audit plan, puis un relief à rampe 25 et débouchent ensuite dans le logement 18 de l'écrou 19.The mouth 17 has the shape of a parallelepiped whose long sides are oriented parallel to the bottom 15 of the housing. The walls 16 then comprise a relief 20 provided, on the side of the mouth 17, with a chamfer 21. The relief 20 is extended by a reinforcement 22 which is provided, opposite said relief 20, with a chamfer 23 extending beyond said relief, towards the median plane of the housing perpendicular to the bottom 15 of the housing. The walls 16 then have a flat part 24 parallel to said plane, then a ramp relief 25 and then open into the housing 18 of the nut 19.

Lorsque le clip 1 est en place dans le trou du boîtier, la base parallélépipédique 2 est entièrement contenue dans l'embouchure 17. Les butées 6, par leurs faces 7, sont en appui contre le relief 20 correspondant. Cet agencement empêche tout retrait du clip hors du trou du boîtier. D'autre part, la portion des branches 3 situées au-­delà des butées 6 s'étend sensiblement au voisinage de la partie plane 24, la succession de reliefs et de gorges étant appliquée contre le filetage de la vis de reglage 10 et l'extrémité des branches 3 étant courbée en direction de la vis de réglage 10 sous l'action de la rampe 25.When the clip 1 is in place in the hole in the housing, the parallelepiped base 2 is entirely contained in the mouth 17. The stops 6, by their faces 7, bear against the corresponding relief 20. This arrangement prevents any removal of the clip from the hole in the housing. On the other hand, the portion of the branches 3 located beyond the stops 6 extends substantially in the vicinity of the flat part 24, the succession of reliefs and grooves being applied against the thread of the adjustment screw 10 and the end of the branches 3 being curved in the direction of the adjusting screw 10 under the action of the ramp 25.

On comprend que, lors de l'introduction du clip 1 dans le trou du boîtier, les faces inclinées 8 des butées 6 vont venir en pression sur le chanfrein des reliefs 20 et l'inclinaison complémentaire de ces surfaces va permettre l'introduction à force des butées 6 au-delà du relief 20 correspondant. D'autre part, les chanfreins 12 des extrémités 11 des branches 3 du clip viennent au contact du relief à rampe 25 du trou et, sous la pression d'introduction, l'effet de rampe se produit, appliquant fortement la succession de reliefs et de gorges sur le filetage de la vis de réglage.It is understood that, during the introduction of the clip 1 into the hole of the housing, the inclined faces 8 of the stops 6 will come into pressure on the chamfer of the reliefs 20 and the complementary inclination of these surfaces will allow the forced introduction stops 6 beyond the corresponding relief 20. On the other hand, the chamfers 12 of the ends 11 of the branches 3 of the clip come into contact with the ramp relief 25 of the hole and, under the introduction pressure, the ramp effect occurs, strongly applying the succession of reliefs and grooves on the thread of the adjusting screw.

L'encliquetage et l'effet de rampe se produisent de préférence de façon concomitante.The snap and the ramp effect preferably occur concomitantly.

Enfin, on comprend que le blocage de forme du clip dans le trou du boîtier est assuré par la conformation du clip et du trou du boîtier.Finally, it is understood that the form blocking of the clip in the hole of the case is ensured by the conformation of the clip and the hole of the case.

Claims (9)

1. Dispositif de blocage de la vis de réglage (10) de la bilame d'un mécanisme de disjonction thermique monté dans un boîtier (13) d'un appareil de protection électrique, mécanisme dans lequel la vis de réglage (10) est accessible de l'extérieur par un trou du boîtier dans lequel la vis (10) peut être tournée dans un sens ou dans l'autre par rapport à un élément taraudé complémentaire (19), immobile, dans lequel la vis (10) est engagée, mécanisme dans lequel on condamne le réglage en bloquant la vis de réglage (10), dispositif caractérisé en ce qu'il comprend un clip (1) agencé de manière à venir s'immobiliser dans le trou du boîtier et à empêcher tout mouvement de la vis de réglage (10).1. Locking device for the adjusting screw (10) of the bimetallic strip of a thermal cut-out mechanism mounted in a housing (13) of an electrical protection device, mechanism in which the adjusting screw (10) is accessible from the outside through a hole in the housing in which the screw (10) can be turned in one direction or the other with respect to a complementary tapped element (19), stationary, in which the screw (10) is engaged, mechanism in which the adjustment is condemned by blocking the adjustment screw (10), device characterized in that it comprises a clip (1) arranged so as to come to rest in the hole of the housing and to prevent any movement of the adjusting screw (10). 2. Dispositif selon la revendication 1, caractérisé en ce que le clip (1) comporte des moyens de serrage de la vis.2. Device according to claim 1, characterized in that the clip (1) comprises means for tightening the screw. 3. Dispositif selon la revendication 2, caractérisé en ce que le clip (1) est serré contre la vis (10) par effet de rampe sur les parois du trou du boîtier.3. Device according to claim 2, characterized in that the clip (1) is tightened against the screw (10) by ramp effect on the walls of the housing hole. 4. Dispositif selon la revendication 2 ou 3, caractérisé en ce que le clip (1) possède une surface de contact (9) pour la vis (10), présentant une succession de reliefs et de gorges dont le pas est sensiblement identique à celui du filetage de la vis (10).4. Device according to claim 2 or 3, characterized in that the clip (1) has a contact surface (9) for the screw (10), having a succession of reliefs and grooves whose pitch is substantially identical to that of the screw thread (10). 5. Dispositif selon l'une des revendications précédentes, caractérisé en ce que le clip (1) présente des moyens d'encliquetage (6) dans le trou du boîtier, pour empêcher son retrait.5. Device according to one of the preceding claims, characterized in that the clip (1) has latching means (6) in the hole of the housing, to prevent its removal. 6. Dispositif selon l'une des revendications précédentes, caractérisé en ce que le clip (1) et le trou du boîtier présentent des moyens complémentaires pour assurer un blocage de forme du clip (1) contre un mouvement de rotation.6. Device according to one of the preceding claims, characterized in that the clip (1) and the hole in the housing have complementary means for blocking the shape of the clip (1) against a rotational movement. 7. Dispositif selon l'une des revendications précédentes, caractérisé en ce que le clip (1) a sensiblement une forme en "U" et les branches (3) du "U" présentent une section rectangulaire.7. Device according to one of the preceding claims, characterized in that the clip (1) has substantially a "U" shape and the branches (3) of the "U" have a rectangular section. 8. Dispositif selon les revendications 5 et 7, caractérisé en ce que les branches (3) du clip (1) comportent, tournées vers l'extérieur du "U", des butées d'encliquetage (6) destinées à coopérer avec des reliefs (20) du trou pour empêcher le retrait du clip (1).8. Device according to claims 5 and 7, characterized in that the branches (3) of the clip (1) comprise, turned towards the outside of the "U", snap stops (6) intended to cooperate with reliefs (20) from the hole to prevent removal of the clip (1). 9. Dispositif selon les revendications 3 et 7, caractérisé en ce que l'extrémité libre des branches (3) du clip comporte un chanfrein (12) destiné à coopérer avec un relief (25) du trou pour assurer le serrage de la vis (10) par effet de rampe.9. Device according to claims 3 and 7, characterized in that the free end of the branches (3) of the clip comprises a chamfer (12) intended to cooperate with a relief (25) of the hole to ensure the tightening of the screw ( 10) by ramp effect.
EP88403077A 1988-12-06 1988-12-06 Device for electrical protection comprising clamping means of a calibrating srew for the bimetal element of a thermal circuit breaker in a box. Expired - Lifetime EP0372142B1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
AT88403077T ATE106161T1 (en) 1988-12-06 1988-12-06 ELECTRICAL PROTECTION DEVICE WITH A LOCKING DEVICE OF THE BIMETAL ADJUSTMENT SCREW FOR A THERMAL PROTECTION BREAKER INSERTED IN AN ENCLOSURE.
DE3889731T DE3889731T2 (en) 1988-12-06 1988-12-06 Electrical protection device with a locking device of the adjusting screw of the bimetal for a thermal circuit breaker which is inserted in a housing.
EP88403077A EP0372142B1 (en) 1988-12-06 1988-12-06 Device for electrical protection comprising clamping means of a calibrating srew for the bimetal element of a thermal circuit breaker in a box.
ES88403077T ES2052764T3 (en) 1988-12-06 1988-12-06 ELECTRICAL PROTECTION APPARATUS WHICH HAS A BILAMINE ADJUSTMENT SCREW LOCKING DEVICE FOR A BOX MOUNTED THERMAL BREAKDOWN MECHANISM.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP88403077A EP0372142B1 (en) 1988-12-06 1988-12-06 Device for electrical protection comprising clamping means of a calibrating srew for the bimetal element of a thermal circuit breaker in a box.

Publications (2)

Publication Number Publication Date
EP0372142A1 true EP0372142A1 (en) 1990-06-13
EP0372142B1 EP0372142B1 (en) 1994-05-25

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Application Number Title Priority Date Filing Date
EP88403077A Expired - Lifetime EP0372142B1 (en) 1988-12-06 1988-12-06 Device for electrical protection comprising clamping means of a calibrating srew for the bimetal element of a thermal circuit breaker in a box.

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Country Link
EP (1) EP0372142B1 (en)
AT (1) ATE106161T1 (en)
DE (1) DE3889731T2 (en)
ES (1) ES2052764T3 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1202317A1 (en) * 2000-10-23 2002-05-02 ABL SURSUM BAYERISCHE ELEKTROZUBEHÖR GmbH &amp; Co. KG Circuit breaker with bimetal calibration
EP1612566A1 (en) * 2004-06-29 2006-01-04 HAGER ELECTRO GmbH Blocking element

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR43442E (en) * 1933-05-01 1934-06-06 Improvements to maximum and minimum switch-circuit breakers
FR1410123A (en) * 1964-10-01 1965-09-03 Thomson Houston Comp Francaise Improvements to adjustable actuating devices, in particular for electrical circuit breakers
DE2145539B2 (en) * 1971-08-20 1972-09-21 Landis & Gyr Ag, Zug (Schweiz) TEMPERATURE LIMITER WHICH CAN BE CHANGED TO THE SWITCHING FUNCTION OF A TEMPERATURE MONITOR
EP0003497A1 (en) * 1978-02-03 1979-08-22 Siemens Aktiengesellschaft Adjusting device with stopping steps to release electric switching devices
GB2071913A (en) * 1980-03-11 1981-09-23 United Gas Industries Ltd Thermostat

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR43442E (en) * 1933-05-01 1934-06-06 Improvements to maximum and minimum switch-circuit breakers
FR1410123A (en) * 1964-10-01 1965-09-03 Thomson Houston Comp Francaise Improvements to adjustable actuating devices, in particular for electrical circuit breakers
DE2145539B2 (en) * 1971-08-20 1972-09-21 Landis & Gyr Ag, Zug (Schweiz) TEMPERATURE LIMITER WHICH CAN BE CHANGED TO THE SWITCHING FUNCTION OF A TEMPERATURE MONITOR
EP0003497A1 (en) * 1978-02-03 1979-08-22 Siemens Aktiengesellschaft Adjusting device with stopping steps to release electric switching devices
GB2071913A (en) * 1980-03-11 1981-09-23 United Gas Industries Ltd Thermostat

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1202317A1 (en) * 2000-10-23 2002-05-02 ABL SURSUM BAYERISCHE ELEKTROZUBEHÖR GmbH &amp; Co. KG Circuit breaker with bimetal calibration
EP1612566A1 (en) * 2004-06-29 2006-01-04 HAGER ELECTRO GmbH Blocking element

Also Published As

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ES2052764T3 (en) 1994-07-16
DE3889731T2 (en) 1994-12-15
DE3889731D1 (en) 1994-06-30
ATE106161T1 (en) 1994-06-15
EP0372142B1 (en) 1994-05-25

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