EP0327460A1 - Automatically opening electric switch, in particular a differential interrupter - Google Patents

Automatically opening electric switch, in particular a differential interrupter Download PDF

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Publication number
EP0327460A1
EP0327460A1 EP89400294A EP89400294A EP0327460A1 EP 0327460 A1 EP0327460 A1 EP 0327460A1 EP 89400294 A EP89400294 A EP 89400294A EP 89400294 A EP89400294 A EP 89400294A EP 0327460 A1 EP0327460 A1 EP 0327460A1
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EP
European Patent Office
Prior art keywords
cam
contact
housing
electric switch
pawl
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.)
Withdrawn
Application number
EP89400294A
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German (de)
French (fr)
Inventor
Georges Urbain
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.)
Legrand SA
Original Assignee
Legrand SA
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Filing date
Publication date
Application filed by Legrand SA filed Critical Legrand SA
Publication of EP0327460A1 publication Critical patent/EP0327460A1/en
Withdrawn legal-status Critical Current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
    • H01H71/10—Operating or release mechanisms
    • H01H71/50—Manual reset mechanisms which may be also used for manual release
    • H01H71/52—Manual reset mechanisms which may be also used for manual release actuated by lever
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H19/00—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand
    • H01H19/54—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand the operating part having at least five or an unspecified number of operative positions
    • H01H19/60—Angularly-movable actuating part carrying no contacts
    • H01H19/635—Contacts actuated by rectilinearly-movable member linked to operating part, e.g. by pin and slot
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2300/00—Orthogonal indexing scheme relating to electric switches, relays, selectors or emergency protective devices covered by H01H
    • H01H2300/046—Orthogonal indexing scheme relating to electric switches, relays, selectors or emergency protective devices covered by H01H using snap closing mechanisms

Definitions

  • the present invention relates generally to electrical switches with automatic cut-off, that is to say electrical switches in which, on manual intervention by an operator, the opening of the contacts and their closing develop according to a process which, once initiated by such an operator, escapes the action of this one and no longer depends on him, the opening of the contacts being able moreover to intervene systematically on the intervention of any detection organ, such as this is for example the case in differential switches, that is to say in switches comprising, as detection member, a relay sensitive to a possible differential current.
  • the present invention relates to electrical switches of the kind comprising, in a housing, between a control lever rotatably mounted relative to said housing and a contact support which, also mounted rotatably relative to said housing, carries at least a contact, a mechanism with abrupt triggering capable of causing the automatic pivoting of said contact support between a closed position, for which it applies, against a fixed contact, the contact which it carries, commonly called movable contact, and a position of opening for which it maintains this movable contact away from the fixed contact.
  • this abruptly triggering mechanism is a mechanism with passing neutral, an axis belonging to one of its constituents being suddenly removed from the alignment of two others when it is forced to reach and cross that line.
  • the electric switches with automatic cut-off implementing such a mechanism with sudden release have given and still give satisfaction, at least at the opening.
  • a cam is used, which, coaxial with the control handle, is mounted freely rotatable relative to the latter, with pawls specific to its drive and to its retention.
  • the present invention generally relates to a provision ensuring a sudden release on closure, thereby allowing to dominate satisfactorily such closure, and further leading to other advantages.
  • an electric switch with automatic cut-off of the kind comprising, in a housing, between a control lever mounted rotatably with respect to said housing and a contact support, which, too, mounted rotatably with respect to said housing , carries at least one contact, a mechanism with abrupt triggering capable of causing the automatic pivoting of said contact support between a closed position, for which it applies against a fixed contact the contact which it carries, commonly called movable contact, and a open position for which it maintains this movable contact away from the fixed contact, said sudden release mechanism being under the control of a cam which, coaxial with the control handle, is freely rotatable relative to the latter, with , associated with said cam, on the one hand, a first pawl, hereinafter called movable pawl, which, rotatably mounted on the control handle, is able to cooperate with a first notch of the cam, for driving it in one direction, and, on the other hand, a second pawl, hereinafter said fixed
  • the electric switch with automatic cut-off is of the type comprising, in a housing 10, between a control handle 11 rotatably mounted relative to said housing 10 and a contact support 12 which, also mounted rotatably with respect to said housing 10, carries at least one contact 13, a snap mechanism 14 capable of causing the automatic pivoting of said contact support 12 between a closed position, FIG. 4, for which it applies against a fixed contact 15, the contact 13 which it carries, hereinafter called mobile contact, and an open position, FIGS. 1 to 3, for which it maintains this mobile contact 13 away from said fixed contact 15, and vice versa.
  • a bipolar electric switch there are, each associated respectively with two fixed contacts 15, two movable contacts 13.
  • the contact support 12 in this embodiment is split into two separate parts.
  • this reference 12 indifferently designates sometimes only one of the parts in question, and sometimes all of them.
  • each of the contact couples formed by a fixed contact 15 and the corresponding movable contact 13 is interposed, independently of the other, between an input terminal 16A and an output terminal 16B, FIG. 1.
  • each of the input 16A and output 16B terminals thus implemented comprises, on the one hand, a tongue 17, which, for an input terminal 16A, is in continuity with the fixed contact 15 corresponding and which, for an output terminal 16B, is electrically connected with the corresponding movable contact 13, for example by a braid, not visible in the figures, on which is, for example, positioned the associated measuring torus, and, on the other hand, for clamping an electrical conductor on this tongue 17, a clamp 18 with clamping screw 19.
  • this housing 10 there is associated, with this housing 10, at least one flange 20 which, in addition to the control lever 11 and the contact support 12, carries all of the components of the snap-action mechanism 14, and which is adapted to be attached to the housing 10 and to be suitably secured thereto.
  • two flanges 20 are provided, each being respectively disposed on either side of all of the constituents concerned.
  • the snap-action mechanism 14 is under the control of a cam 25 which, coaxial with the control handle 11, is freely rotatable relative to the latter, with, associated with said cam 25, of a part, a first pawl 26, here called movable pawl, which, rotatably mounted on the control handle 11, is adapted, by a spout 27, to cooperate with a first notch 28 of the cam 25, for driving it ci, in a direction, along arrow F1 of FIG.
  • a cam 25 which, coaxial with the control handle 11, is freely rotatable relative to the latter, with, associated with said cam 25, of a part, a first pawl 26, here called movable pawl, which, rotatably mounted on the control handle 11, is adapted, by a spout 27, to cooperate with a first notch 28 of the cam 25, for driving it ci, in a direction, along arrow F1 of FIG.
  • a second pawl 30, here called a fixed pawl which, mounted rotatably relative to the flanges 20, and therefore relative to the housing 10, is capable, by a notch 31, of cooperating with a second notch 32 of the cam 25, for retaining the latter in the opposite direction to the previous one.
  • the cam 25 extends, overall, entirely within the overall contour of the control handle 11.
  • first notch 28 is formed by means of a projecting spout 34, and, likewise, its second notch 32, which is disposed in a generally diametrically opposite position relative to the previous one, is formed by a projecting spout 35 .
  • this second notch 32 is in continuity with one of the flanks of a re-entrant dihedral 36 affecting in hollow the edge of this cam 25.
  • the cam 25 thus formed is in practice split into two parts, which, engaged in rotation on the same axis 22 as the control lever 11, are each respectively attached to the two sides of the latter this.
  • the movable pawl 26 and the fixed pawl 30 are generally disposed in generally opposite positions relative to each other on either side of the cam 25, and therefore on either side of the control lever 11 .
  • the movable pawl 26, which is constituted by a single piece, is in the general form of a yoke, having, on the one hand, two arms 37, by which it is articulated, by an axis 38, on a boss 39 provided radially projecting for this purpose on the control lever 11, and the ends of which, for cooperation with the two constituent parts of the cam 25, each form a spout 27, and, on the other hand, connecting these arms 37 to their base, a cross 40.
  • this cross member 40 has, on the side of the control lever 11, projecting in the direction of the latter, a finger 41, and, on the opposite side, a boss 42.
  • the movable pawl 26 thus formed and the control handle 11 have in common elastic return means, which, bearing on a flange 20, jointly urge the control handle 11 towards its open position and the movable pawl 26 in the direction of the cam 25.
  • these elastic return means consist of a torsion spring 43, the central torsion part 44 of which is engaged on a cylindrical boss 45 of the control lever 11, and one of which, 46, of the branches, bears on a pin 47 provided projecting for this purpose on a flange 20 while the other, 48, bears on the finger 41 of the movable pawl 26.
  • the fixed pawl 30 is constituted by a single piece.
  • the ramp 53 of the cam 25 is formed by that of the sides of its re-entering dihedral 36 which is opposite to its notch 32, and the arm 54 of the fixed pawl 30 extends from its cross 49 , substantially perpendicular to its uprights 52.
  • the fixed pawl 30 is associated with elastic return means which urge it to pivot in the opposite direction to the previous one, that is to say in the opposite direction to that for which it is able to engage with the corresponding notch 32 of cam 25.
  • these elastic return means comprise a torsion spring 55, the central torsion part 56 of which is engaged on a smaller diameter extension 57 of the boss cylindrical 51 corresponding to the flange 20 concerned and one of which, 58, of the branches bears on a pin 59 provided for projecting for this purpose on this flange 20 while the other, 60, relates to a lug 61 also provided laterally projecting at this effect on that of the uprights 52 of this fixed pawl 30 which is close to this flange 20.
  • a locking lever 62 which, rotatably mounted relative to the flanges 20, and therefore relative to the housing 10, is able, by a spoiler 63, to hold said fixed pawl 30 in engagement with the notch 32 corresponding to the cam 25, carrying, then, simply by its free end, and as shown in FIG. 4, on the crosspiece 64 of this fixed pawl 30 opposite to that, 49, from which extends its arm 54.
  • this locking lever 62 is rotatably engaged on a fixed axis 65 engaged with a cylindrical boss 66 of one of the flanges 20, and it is associated with elastic return means which permanently urge its spoiler 63 towards of the cross member 64 of the fixed pawl 30.
  • these elastic return means consist of a torsion spring 67, the central torsion part 68 of which is engaged on the corresponding cylindrical boss 66 of the flange 20 concerned, and one of which, 69, of the branches is supported on a pin 70 provided projecting for this purpose on this flange 20 while the other, 71, relates to a lug 72 also provided laterally projecting for this purpose on the locking lever 62.
  • the locking lever 62 is also associated with an unlocking lever 73, which, rotatably mounted relative to the flanges 20, and therefore relative to the housing 10, being, in practice, engaged in rotation, for this purpose, on the axis 22 of the control lever 11, comprises, on the one hand, at the end of a finger 74, a boss 75, by which it interferes with the path of a boss 76 which, for him, has radially projecting, the control lever 11, and, on the other hand, a lug 77 by which, after bypassing the locking lever 62, it is able to act on this locking lever 62.
  • this unlocking lever 73 is extended by an arm 78 on the other side of the axis 22 of the control lever 11.
  • a differential switch that is to say a switch comprising a relay 79 sensitive to a differential current
  • the striker 80 of this sensitive relay 79 is able to act on the lever locking 62 by means of a reset lever 81 rotatably mounted relative to the flanges 20, and therefore relative to the housing 10.
  • this reset lever 81 is rotatably engaged on the axis 65 of the locking lever 62, the latter forming a yoke between the arms of which it extends, and it comprises, with firstly, a rigid arm 82, by which it is capable of acting on the striker 80 of the sensitive relay 79, and by means of which said striker 80 is capable of acting on said locking lever 62, and, secondly, an elastically deformable arm 83 on which the fixed pawl 30 carries.
  • this elastically deformable arm 83 itself comprises a rigid U-shaped part 84 of which the rigid arm 82 is integral, and a butt-shaped spring 85 which, by its base, is engaged with the part rigid 84, and which, by its free end, bears on the crosspiece 64 of the fixed pawl 30.
  • the snap-action mechanism 14 also includes a slide 87, which, mounted movable in translation relative to the flanges 20, and therefore relative to the housing 10, engages, by a finger 88, with the cam 25, a lever attachment 89, which, rotatably mounted relative to the flanges 20, and therefore relative to the housing 10, has, on the one hand, a notch 90, by which it is capable of being hooked on a notch 91 of the contact support 12, for retaining the latter, and, on the other hand, a ramp 92, by which, for its pivoting, and thus the release of said contact support 12, it interferes with the path of a pin 93 secured to the slide 87 , and, as explained later, elastic contact pressure means capable of acting in closing on the contact support 12 while in practice bearing on said slide 87.
  • the slide 87 which, like the contact support 12 and the cam 25, is split into two pieces each arranged respectively on either side of the control lever 11, while the lever d hooking 89 forms a single piece, comprises, overall, two angled branches, namely, a branch 94, which carries its finger 88, and a branch 95 at the end of which it has a transversely projecting finger 96 by which it is able to act on the corresponding movable contact 13 for driving the opening thereof, while the pin 93 which it carries extends substantially in its elbow region, at the intersection of its branches 94 and 95.
  • the slide 87 thus formed is associated with elastic return means which permanently urge it to open.
  • these elastic return means consist of a torsion spring 97, the central torsion part 98 of which is engaged on a cylindrical boss 99 of a flanges 20, and one of which, 100, of branches, bears on the cylindrical boss 101 of this flange 20 around which the control lever 11 pivots while the other, 102, bears on a shoulder 103 provided, laterally, in oblique, for this purpose, on the internal flank of the branch 95 of the slide 87.
  • the cam 25 has, angularly halfway between its notches 28 and 32, a recess 104, and, for example, and as shown, a notch, which extends substantially radially, and in which said finger 88 is engaged.
  • this finger 88 passes right through the slider 87, and, as shown diagrammatically in broken lines in FIGS. 1 and 2, it thus participates in the sliding guide of the latter, in being for this purpose engaged with a groove 105 of the flange 20 close.
  • the attachment lever 89 which forms a single piece, is, in the embodiment shown, in the form of a yoke, which, by its median zone, intermediate between its notch 90 and its ramp 92, is engaged rotating on a fixed axis 107 engaged with a cylindrical boss 108 of the flange 20, and at the end of each of the two branches of which is provided such a notch 90, for cooperation, each respectively, with the two component parts of the contact support 12.
  • the hooking lever 89 thus formed is associated with elastic return means which permanently urge it in the direction of the corresponding notch 91 of this contact support 12.
  • these elastic return means consist of a torsion spring 109, the central torsion part 110 of which is engaged on a cylindrical boss 108 of the lever d attachment 89 and of which one, 111, of the branches, is supported on a pin 112 provided for projecting for this purpose on the flange 20 close while the other, 113, relates to a lug 114 also provided laterally projecting for this purpose on the attachment lever 89, on the side of its ramp 92.
  • the contact support 12 is rotatably engaged on a fixed axis 115 engaged with a cylindrical boss 116 of at least one flanges 20.
  • the movable contacts 13, which surround it, are attached to it laterally, for example by crimping.
  • the contact support 12 is able, by an appendix 117, to cooperate with the boss 42 of the movable pawl 26, first in thrust, for the escape of this movable pawl 26 relative to the notch 28 of the control lever 11, then in support, for the retention in the closed position thereof.
  • a position indicator 120 which, rotatably mounted relative to the flanges 20, and therefore relative to the housing 10 , being engaged for this purpose in rotation on a fixed axis 121 carried by the flange 20, has, radially, in hollow, a notch 122 with which is engaged said finger 119, and which is thus capable of occupying, level with the front wall of the housing 10, one or the other of two distinct positions, one opening, FIGS. 1 to 3, the other closing, FIG. 6.
  • the elastic contact pressure means interposed between the slider 87 and the contact support 12 are constituted, in the embodiment shown, by a torsion spring 124 of which the central torsion part 125 is engaged on the cylindrical boss 116 of the flange 20 concerned, and one of which, 126, of the branches bears on a boss 127 provided laterally for this purpose projecting from the external flank of the branch 95 of the slide 87 while the other, 128, bears on a lug 129 also provided laterally projecting for this purpose on the contact support 12.
  • torsion springs 124 there are thus two torsion springs 124, one per component constituting the contact support 12 and per component constituting the slide 87.
  • the movable contacts 13 are therefore thus kept apart from the fixed contacts 15.
  • the fixed pawl 30 is out of service, its notch 31 being at a distance from the notch 32 of the cam 25, while the end of its arm 54 is in the vicinity immediately from the base of ramp 53 of the latter and that its crosspiece 64 extends to the root of the spoiler 63 of the locking lever 62.
  • the locking lever 62 Under the stress of the spring 67 constituting its elastic return means, the locking lever 62, for its part, is in abutment against the lug 77 of the unlocking lever 73, and, the latter being jointly in abutment, by its boss 75, against the boss 76 of the control lever 11, under the stress of the same spring 67, the screw 86 carried by the locking lever 62 is spaced from the arm 82 of the reset lever 81, however, the latter , under the bias of the spring 55 constituting the elastic return means of the fixed pawl 30, and by means of the latter, is applied against the striker 80 of the sensitive relay 79.
  • the cam 25 causes, by its ramp 53, a pivoting, along the arrow F2 of FIGS. 2 and 4, of the fixed pawl 30, this ramp 53 coming to bear against the end of the arm 54 of this fixed pawl 30, and, because of its obliquity, then constraining this arm 54, and therefore the fixed pawl 30, to follow it.
  • the locking lever 62 pivots about the axis 65, along the arrow F5 in FIG. 5, which leads it to be carried, by the screw 86 that it carries, on the arm 82 of the reset lever 81, itself in contact with the striker 80 of the sensitive relay 79.
  • This cam 25 being thus released, it is the object, under the stress of the spring 43 constituting its elastic return means, these intervening by by means of the movable pawl 26, in a retrograde movement around the axis 22, along arrow F8 in FIG. 6, which leads it to engage, by its notch 32, with the notch 31 of the fixed pawl 30, however, that the latter, under the bias of the spring 55 constituting its elastic return means, comes into abutment, by its crosspiece 64 against the spoiler 63 of the locking lever 62.
  • the unlocking lever 73 causes the breaking of the attachment previously established between the spoiler 63 of this locking lever 62 and the crosspiece 64 of the fixed pawl 30, so that , the latter returning to the open position under the bias of the spring 55 constituting its elastic return means, by pivoting, along the arrow F10 of FIG. 6, around the axis 50, it releases the cam 25 and therefore the slide 87 which meshes with it.
  • the slider 87 Under the stress of the spring 97 constituting its elastic return means, the slider 87, thus released, suddenly returns to the retracted open position, which, on the one hand, by its finger 96, also suddenly returns to the open position the movable contact 13, and therefore the contact support 12 carrying the latter, with, at the end of its travel, a new picking of this contact support 12 on the latching lever 89, the latter being urged accordingly by the spring 109 constituting its elastic return means as soon as the pin 93 of the slide 87 has abandoned its ramp 92, and which, on the other hand, by its finger 88, also causes the return of the cam 25 to the open position , with, at the end of the travel, a new hooking, on the latter, of the movable pawl 26.
  • the elastically deformable arm 83 of the rearming lever 81 which, during closing, has enabled, by means of the fixed pawl 30, and under the bias of the spring 55 constituting the elastic return means associated with this fixed pawl 30 , the resetting of the striker 80 of the sensitive relay 79, advantageously absorbs, during an opening, part of the shock energy developed, thus providing for the sensitive relay 79.
  • the various constituents of the electric switch with automatic cut-off according to the invention can advantageously be made of synthetic material, which contributes to the insulation of the together.
  • the flanges 20 used in the embodiment shown carry all of the movable members internal to the housing 10, as well, moreover, as the sensitive relay 79, which, during assembly, advantageously makes it possible to report, first, on these support flanges 20, the various members concerned, and, then, after the necessary adjustments, to place everything in this housing 10, only the input and output and the fixed contact being directly attached to it.

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Abstract

This relates to an electrical interrupter of the type comprising, between a rotatably mounted control handle (11) and a contact holder (12), which, itself also mounted rotatably, carries at least one contact (13), a sudden-release mechanism (14) which is under the control of a cam (25) coaxial with the control handle (11) and mounted freely rotatably in relation to the latter, with, associated with this cam (25), ratchets (26, 30) able to drive and retain it. According to the invention, a slider (87) meshes via a finger (88) with the cam (25) and a latching lever (89), which is mounted rotatably and able to hook up with the contact holder (12), has a ramp (92) through which it interferes with the path of a pin (93) integral with the slider (87), with, bearing on the latter, contact pressure means (124) able to act in closure mode on the contact holder (12). Application, in particular, to differential interrupters. <IMAGE>

Description

La présente invention concerne d'une manière générale les interrupteurs électriques à coupure automatique, c'est-à-dire les interrupteurs électriques dans lesquels, sur une intervention manuelle d'un opérateur, l'ouverture des contacts et leur fermeture se développent suivant un processus qui, une fois initié par un tel opérateur, échappe à l'action de celui-ci et ne dépend plus de lui, l'ouverture des contacts pouvant en outre intervenir systématiquement sur l'intervention d'un quelconque organe de détection, comme cela est par exemple le cas dans les interrupteurs différentiels, c'est-à-dire dans les interrupteurs comportant, comme organe de détection, un relais sensible à un éventuel courant différentiel.The present invention relates generally to electrical switches with automatic cut-off, that is to say electrical switches in which, on manual intervention by an operator, the opening of the contacts and their closing develop according to a process which, once initiated by such an operator, escapes the action of this one and no longer depends on him, the opening of the contacts being able moreover to intervene systematically on the intervention of any detection organ, such as this is for example the case in differential switches, that is to say in switches comprising, as detection member, a relay sensitive to a possible differential current.

De manière plus précise, la présente invention concerne les interrupteurs électriques du genre comportant, dans un boîtier, entre une manette de commande montée rotative par rapport audit boîtier et un support de contact qui, lui aussi monté rotatif par rapport audit boîtier, porte au moins un contact, un mécanisme à déclenchement brusque propre à provoquer le pivotement automatique dudit support de contact entre une position de fermeture, pour laquelle il applique, contre un contact fixe, le contact qu'il porte, communément dit contact mobile, et une position d'ouverture pour laquelle il maintient ce contact mobile écarté du contact fixe.More specifically, the present invention relates to electrical switches of the kind comprising, in a housing, between a control lever rotatably mounted relative to said housing and a contact support which, also mounted rotatably relative to said housing, carries at least a contact, a mechanism with abrupt triggering capable of causing the automatic pivoting of said contact support between a closed position, for which it applies, against a fixed contact, the contact which it carries, commonly called movable contact, and a position of opening for which it maintains this movable contact away from the fixed contact.

C'est ce mécanisme à déclenchement brusque qui assure la coupure automatique recherchée.It is this abrupt triggering mechanism which ensures the automatic cut off sought.

Le plus souvent, à ce jour, ce mécanisme à déclenchement brusque est un mécanisme à passage de point mort, un axe appartenant à l'un de ses constituants se trouvant brusquement écarté de l'alignement de deux autres lorsqu'il est contraint à atteindre et franchir cet alignement.Most often, to date, this abruptly triggering mechanism is a mechanism with passing neutral, an axis belonging to one of its constituents being suddenly removed from the alignment of two others when it is forced to reach and cross that line.

Les interrupteurs électriques à coupure automatique mettant en oeuvre un tel mécanisme à déclenchement brusque ont donné et donnent encore satisfaction, au moins à l'ouverture.The electric switches with automatic cut-off implementing such a mechanism with sudden release have given and still give satisfaction, at least at the opening.

Ils peuvent cependant s'avérer parfois moins performants à la fermeture.However, they can sometimes prove to be less effective at closure.

Dans le document GB-A-233.094, il est mis en oeuvre une came, qui, coaxiale de la manette de commande, est monteé librement rotative par rapport à celle-ci, avec des cliquets propres à son entraînement et à sa retenue.In document GB-A-233.094, a cam is used, which, coaxial with the control handle, is mounted freely rotatable relative to the latter, with pawls specific to its drive and to its retention.

Si le mécanisme correspondant constitue bien un mécanisme à déclenchement brusque à l'ouverture, il n'en est pas de même à la fermeture.If the corresponding mechanism is indeed a mechanism with abrupt triggering on opening, it is not the same at closing.

En effet, avec ce mécanisme, cette fermeture se fait progressivement.Indeed, with this mechanism, this closure is done gradually.

La présente invention a d'une manière générale pour objet une disposition assurant un déclenchement brusque à la fermeture, en permettant ainsi de dominer de manière satisfaisante une telle fermeture, et conduisant en outre à d'autres avantages.The present invention generally relates to a provision ensuring a sudden release on closure, thereby allowing to dominate satisfactorily such closure, and further leading to other advantages.

De manière plus précise, elle a pour objet un interrupteur électrique à coupure automatique du genre comportant, dans un boîtier, entre une manette de commande montée rotative par rapport audit boîtier et un support de contact, qui, lui aussi monté rotatif par rapport audit boîtier, porte au moins un contact, un mécanisme à déclenchement brusque propre à provoquer le pivotement automatique dudit support de contact entre une position de fermeture, pour laquelle il applique contre un contact fixe le contact qu'il porte, communément dit contact mobile, et une position d'ouverture pour laquelle il maintient ce contact mobile écarté du contact fixe, ledit mécanisme à déclenchement brusque étant sous le contrôle d'une came qui, coaxiale de la manette de commande, est montée librement rotative par rapport à celle-ci, avec, associés à ladite came, d'une part, un premier cliquet, dit ci-après cliquet mobile, qui, monté rotatif sur la manette de commande, est apte à coopérer avec un premier cran de la came, pour l'entraînement, dans un sens, de celle-ci, et, d'autre part, un deuxième cliquet, dit ci-après cliquet fixe, qui, monté rotatif par rapport au boîtier, est apte à coopérer avec un deuxième cran de la came, pour la retenue de celle-ci dans le sens opposé au précédent, cet interrupteur électrique étant d'une manière générale caractérisé en ce que, le mécanisme à déclenchement brusque comportant un coulisseau monté mobile en translation par rapport au boîtier, ledit coulisseau engrène par un doigt avec la came, et ledit mécanisme à déclenchement brusque comporte en outre un levier d'accrochage qui, monté rotatif par rapport au boîtier présente, d'une part, un cran par lequel il est apte à se crocheter sur un cran du support de contact, pour la retenue de celui-ci, et, d'autre part, une rampe par laquelle, pour son pivotement, et ainsi la libération dudit support de contact, il interfère avec le trajet d'un pion solidaire du coulisseau, et des moyens élastiques de pression de contact aptes à agir en fermeture sur le support de contact.More specifically, it relates to an electric switch with automatic cut-off of the kind comprising, in a housing, between a control lever mounted rotatably with respect to said housing and a contact support, which, too, mounted rotatably with respect to said housing , carries at least one contact, a mechanism with abrupt triggering capable of causing the automatic pivoting of said contact support between a closed position, for which it applies against a fixed contact the contact which it carries, commonly called movable contact, and a open position for which it maintains this movable contact away from the fixed contact, said sudden release mechanism being under the control of a cam which, coaxial with the control handle, is freely rotatable relative to the latter, with , associated with said cam, on the one hand, a first pawl, hereinafter called movable pawl, which, rotatably mounted on the control handle, is able to cooperate with a first notch of the cam, for driving it in one direction, and, on the other hand, a second pawl, hereinafter said fixed pawl, which, mounted to rotate relative to the housing, is able to cooperate with a second notch of the cam, for retaining the latter in the opposite direction to the previous one, this electric switch being generally characterized in that, the mechanism with sudden release comprising a slide mounted movable in translation relative to the housing, said slide meshes with a finger with the cam, and said snap-action mechanism further comprises a latching lever which, rotatably mounted relative to the housing has, on the one hand, a notch by which it is able to be hooked on a notch of the contact support, for retaining the latter, and, on the other hand, a ramp by which, for its pivoting, and thus the release of said contact support, it interferes with the path of a pin integral with the slide, and elastic contact pressure means able to act in closing on the contact support.

Ainsi, l'ensemble des constituants du mécanisme à déclenchement brusque mis en oeuvre suivant l'invention s'organisent autour d'une came, et non autour de trois axes à aligner.Thus, all of the constituents of the abruptly triggered mechanism implemented according to the invention are organized around a cam, and not around three axes to be aligned.

Lors du basculement en position de fermeture de la manette de commande, le coulisseau, entraîné par la came, alors même que le support de contact se trouve retenu par le levier d'accrochage, bande progressivement les moyens élastiques de pression de contact portant sur ce support de contact, en sorte que, lorsque, sur son trajet, il provoque l'escamotage du levier d'accrochage retenant jusque-là ce support de contact, ces moyens élastiques de pression de contact, ainsi libérés, se détendent brusquement et assurent alors la fermeture brusque recherchée.When the control lever is tilted to the closed position, the slide, driven by the cam, even when the contact support is retained by the latching lever, progressively bandages the elastic contact pressure means bearing on this contact support, so that, when in its path, it causes the latching lever to retract retaining this contact support until then, these elastic contact pressure means, thus released, suddenly relax and then ensure the sudden closure sought.

Grâce à une telle disposition, les conditions suivant lesquelles s'effectue cette fermeture brusque peuvent être parfaitement contrôlées et dominées.Thanks to such an arrangement, the conditions under which this abrupt closure takes place can be perfectly controlled and dominated.

En outre, avec la came mise en oeuvre suivant l'invention, il est également plus aisé d'organiser à son gré, autour d'une telle came, les divers constituants à mettre en oeuvre, ce qui est avantageusement favorable à un montage par simple empilage de ceux-ci, au bénéfice des coûts de montage correspondants.In addition, with the cam implemented according to the invention, it is also easier to organize at will, around such a cam, the various constituents to be used, which is advantageously favorable for mounting by simple stacking of these, for the benefit of the corresponding assembly costs.

Enfin, aisément réalisables en matière synthétique, ces constituants, qui sont en nombre, concourent avantageusement à l'isolation de l'ensemble.Finally, easily made of synthetic material, these constituents, which are numerous, advantageously contribute to the insulation of the assembly.

Certes, il est connu, par le document DE-B-1 .210.069, la mise en oeuvre d'un coulisseau pour assurer le basculement brusque d'un contact.Admittedly, it is known from document DE-B-1. 210.069, the use of a slider to ensure the sudden tilting of a contact.

Mais, dans ce document, l'intervention de ce coulisseau résulte directement de l'action exercée sur la manette de commande correspondante, et il n'y a ni un quelconque engrènement du coulisseau avec une quelconque came, ni la coopération de ce coulisseau avec un levier d'accrochage susceptible de retenir, et de libérer en temps opportun, le support du contact à commander.But, in this document, the intervention of this slider results directly from the action exerted on the corresponding control lever, and there is neither any engagement of the slider with any cam, nor the cooperation of this slider with a latching lever capable of retaining, and releasing in a timely manner, the support of the contact to be controlled.

Il s'agit donc, dans ce document DE-B-1.210.069, d'un mécanisme de nature très différente de celui de l'interrupteur électrique de l'invention.It is therefore, in this document DE-B-1.210.069, a mechanism of a very different nature from that of the electric switch of the invention.

Il en est de même pour le document DE-C-656.585.The same is true for document DE-C-656.585.

Les caractéristiques et avantages de l'invention ressortiront d'ailleurs de la description qui va suivre, à titre d'exemple, en référence aux dessins schématiques annexés sur lesquels :

  • la figure 1 est, avec des arrachements locaux, et l'omission de certains constituants, une vue en perspective, de principe, d'un interrupteur électrique à coupure automatique suivant l'invention ;
  • la figure 2 est, à échelle différente, et avec des arrachements locaux, une vue partielle, en élévation, suivant la flèche II de la figure 1, de ceux des constituants de cet interrupteur électrique qui sont concernés par le mécanisme à déclenchement brusque mis en oeuvre dans celui-ci, pour la position d'ouverture de ces constituants, et abstraction faite des moyens élastiques qui leur sont associés ;
  • la figure 3 est une vue partielle en élévation analogue à celle de la figure 2, mais avec les moyens élastiques associés aux constituants en cause ;
  • les figures 4 et 5 sont, à échelle inférieure, des vues partielles en élévation, qui, également analogues à celle de la figure 2, illustrent, chacune respectivement, deux positions successives de ces constituants, entre leur position d'ouverture et leur position de fermeture ;
  • la figure 6 est, à l'échelle des figures 4 et 5, une vue partielle en élévation pour cette position de fermeture.
The characteristics and advantages of the invention will become apparent from the description which follows, by way of example, with reference to the appended schematic drawings in which:
  • Figure 1 is, with local cutaway, and the omission of certain components, a perspective view, in principle, of an electric switch with automatic cut according to the invention;
  • Figure 2 is, on a different scale, and with local cutaways, a partial view, in elevation, along arrow II of Figure 1, of those of the components of this electrical switch which are affected by the abrupt triggering mechanism set work in it, for the open position of these constituents, and disregarding the elastic means associated with them;
  • Figure 3 is a partial elevational view similar to that of Figure 2, but with the elastic means associated with the constituents in question;
  • Figures 4 and 5 are, on a smaller scale, partial elevation views, which also similar to that of Figure 2, each illustrate two successive positions of these constituents, respectively, between their open position and their position of closing ;
  • Figure 6 is, on the scale of Figures 4 and 5, a partial elevational view for this closed position.

Tel qu'illustré sur ces figures, l'interrupteur électrique à coupure automatique suivant l'invention est du genre comportant, dans un boîtier 10, entre une manette de commande 11 montée rotative par rapport audit boîtier 10 et un support de contact 12 qui, lui aussi monté rotatif par rapport audit boîtier 10, porte au moins un contact 13, un mécanisme à déclenchement brusque 14 propre à provoquer le pivotement automatique dudit support de contact 12 entre une position de fermeture, figure 4, pour laquelle il applique, contre un contact fixe 15, le contact 13 qu'il porte, dit ci-après contact mobile, et une position d'ouverture, figures 1 à 3, pour laquelle il maintient ce contact mobile 13 écarté dudit contact fixe 15, et réciproquement.As illustrated in these figures, the electric switch with automatic cut-off according to the invention is of the type comprising, in a housing 10, between a control handle 11 rotatably mounted relative to said housing 10 and a contact support 12 which, also mounted rotatably with respect to said housing 10, carries at least one contact 13, a snap mechanism 14 capable of causing the automatic pivoting of said contact support 12 between a closed position, FIG. 4, for which it applies against a fixed contact 15, the contact 13 which it carries, hereinafter called mobile contact, and an open position, FIGS. 1 to 3, for which it maintains this mobile contact 13 away from said fixed contact 15, and vice versa.

S'agissant, dans la forme de réalisation représentée, d'un interrupteur électrique bipolaire, il y a, associés chacun respectivement à deux contacts fixes 15, deux contacts mobiles 13.As, in the embodiment shown, a bipolar electric switch, there are, each associated respectively with two fixed contacts 15, two movable contacts 13.

De ce fait, le support de contact 12, dans cette forme de réalisation, est dédoublé en deux pièces distinctes.Therefore, the contact support 12, in this embodiment, is split into two separate parts.

Mais, celles-ci étant en pratique solidaires l'une de l'autre, elles seront considérées ci-après comme constituant une seule et même pièce, en étant alors indistinctement désignées par la seule et même référence 12.However, these being in practice integral with one another, they will be considered below as constituting one and the same part, being then indistinctly designated by the one and the same reference 12.

Ainsi, dans ce qui suit, cette référence 12 désigne indifféremment tantôt une seule des pièces en cause, et tantôt l'ensemble de celles-ci.Thus, in what follows, this reference 12 indifferently designates sometimes only one of the parts in question, and sometimes all of them.

Il en sera de même, ci-après, pour certains au moins des autres constituants de l'interrupteur électrique suivant l'invention.It will be the same, below, for at least some of the other components of the electrical switch according to the invention.

Il va de soi, d'ailleurs, que, en variante, le support de contact 12, et il en est de même pour tel ou tel autre des constituants qui vont suivre, peut être formé d'une seule et même pièce.It goes without saying, moreover, that, as a variant, the contact support 12, and it is the same for this or that other of the constituents which will follow, can be formed in one and the same piece.

Quoi qu'il en soit, chacun des couples de contact que forment un contact fixe 15 et le contact mobile 13 correspondant est interposé, indépendamment de l'autre, entre une borne d'entrée 16A et une borne de sortie 16B, figure 1.Be that as it may, each of the contact couples formed by a fixed contact 15 and the corresponding movable contact 13 is interposed, independently of the other, between an input terminal 16A and an output terminal 16B, FIG. 1.

Dans la forme de réalisation représentée, chacune des bornes d'entrée 16A et de sortie 16B ainsi mises en oeuvre comporte, d'une part, une languette 17, qui, pour une borne d'entrée 16A, est en continuité avec le contact fixe 15 correspondant et qui, pour une borne de sortie 16B, est reliée électriquement avec le contact mobile 13 correspondant, par exemple par une tresse, non visible sur les figures, sur laquelle est, par exemple, positionné le tore de mesure associé, et, d'autre part, pour le serrage d'un conducteur électrique sur cette languette 17, un étrier 18 à vis de serrage 19.In the embodiment shown, each of the input 16A and output 16B terminals thus implemented comprises, on the one hand, a tongue 17, which, for an input terminal 16A, is in continuity with the fixed contact 15 corresponding and which, for an output terminal 16B, is electrically connected with the corresponding movable contact 13, for example by a braid, not visible in the figures, on which is, for example, positioned the associated measuring torus, and, on the other hand, for clamping an electrical conductor on this tongue 17, a clamp 18 with clamping screw 19.

Pour alléger la figure 1, seule l'une des bornes d'entrée 16A a l'ensemble de ses constituants représentés sur cette figure 1 ; pour l'autre borne d'entrée 16A, et pour les bornes de sortie 16B, il y manque tel ou tel de ces constituants.To simplify Figure 1, only one of the input terminals 16A has all of its components shown in this Figure 1; for the other input terminal 16A, and for the output terminals 16B, one or other of these constituents is missing.

Ces dispositions sont bien connues par elles-mêmes, et ne faisant pas partie en soi de la présente invention, elles ne seront pas décrites plus en détail ici.These provisions are well known in themselves, and not being in themselves part of the present invention, they will not be described in more detail here.

De même, connu en soi, et relevant de l'homme de l'art, le boîtier 10, qui n'a été que schématisé, par son contour, sur la figure 1, ne sera pas décrit en détail ici.Likewise, known per se, and relating to those skilled in the art, the housing 10, which has only been shown diagrammatically, by its outline, in FIG. 1, will not be described in detail here.

En pratique, dans la forme de réalisation représentée, il est associé, à ce boîtier 10, au moins un flasque 20 qui, outre la manette de commande 11 et le support de contact 12, porte l'ensemble des constituants du mécanisme à déclenchement brusque 14, et qui est adapté à être rapporté dans le boîtier 10 et à y être convenablement assujetti.In practice, in the embodiment shown, there is associated, with this housing 10, at least one flange 20 which, in addition to the control lever 11 and the contact support 12, carries all of the components of the snap-action mechanism 14, and which is adapted to be attached to the housing 10 and to be suitably secured thereto.

En pratique, deux flasques 20 sont prévus, en étant chacun respectivement disposés de part et d'autre de l'ensemble des constituants concernés.In practice, two flanges 20 are provided, each being respectively disposed on either side of all of the constituents concerned.

Seul l'un de ces flasques 20 est visible sur les figures.Only one of these flanges 20 is visible in the figures.

Relevant de l'homme de l'art, ces flasques 20 ne seront pas non plus décrits dans tous leurs détails ici.Relating to those skilled in the art, these flanges 20 will not be described in all their details here either.

Seuls en seront occasionnellement mentionnés les éléments nécessaires à la compréhension de l'invention.Only the elements necessary for an understanding of the invention will occasionally be mentioned.

C' est ainsi, par exemple, que l'axe 22 autour duquel est montée rotative la manette de commande 11 est en prise avec l'alésage d'un bossage cylindrique 23 prévu en saillie à cet effet sur l'un d'eux.Thus, for example, that the axis 22 around which is rotatably mounted the control handle 11 is engaged with the bore of a cylindrical boss 23 provided projecting for this purpose on one of them.

En pratique, le mécanisme à déclenchement brusque 14 est sous le contrôle d'une came 25 qui, coaxiale de la manette de commande 11, est montée librement rotative par rapport à celle-ci, avec, associés à ladite came 25, d'une part, un premier cliquet 26, dit ici cliquet mobile, qui, monté rotatif sur la manette de commande 11, est apte, par un bec 27, à coopérer avec un premier cran 28 de la came 25, pour l'entraînement de celle-ci, dans un sens, suivant la flèche F1 de la figure 2, et, d'autre part, un deuxième cliquet 30, dit ici cliquet fixe, qui, monté rotatif par rapport aux flasques 20, et donc par rapport au boîtier 10, est apte, par un cran 31, à coopérer avec un deuxième cran 32 de la came 25, pour la retenue de celle-ci dans le sens opposé au précédent.In practice, the snap-action mechanism 14 is under the control of a cam 25 which, coaxial with the control handle 11, is freely rotatable relative to the latter, with, associated with said cam 25, of a part, a first pawl 26, here called movable pawl, which, rotatably mounted on the control handle 11, is adapted, by a spout 27, to cooperate with a first notch 28 of the cam 25, for driving it ci, in a direction, along arrow F1 of FIG. 2, and, on the other hand, a second pawl 30, here called a fixed pawl, which, mounted rotatably relative to the flanges 20, and therefore relative to the housing 10, is capable, by a notch 31, of cooperating with a second notch 32 of the cam 25, for retaining the latter in the opposite direction to the previous one.

La came 25 s'étend, globalement, en totalité dans le contour hors tout de la manette de commande 11.The cam 25 extends, overall, entirely within the overall contour of the control handle 11.

Son premier cran 28 est formé à la faveur d'un bec saillant 34, et, de même, son deuxième cran 32, qui est disposé en position globalement diamétralement opposée par rapport au précédent, est formé à la faveur d'un bec saillant 35.Its first notch 28 is formed by means of a projecting spout 34, and, likewise, its second notch 32, which is disposed in a generally diametrically opposite position relative to the previous one, is formed by a projecting spout 35 .

Mais, pour des raisons qui apparaîtront ci-après, ce deuxième cran 32 est en continuité avec l'un des flancs d'un dièdre rentrant 36 affectant en creux la tranche de cette came 25.However, for reasons which will appear below, this second notch 32 is in continuity with one of the flanks of a re-entrant dihedral 36 affecting in hollow the edge of this cam 25.

Comme indiqué précédemment pour le support de contact 12, la came 25 ainsi constituée est en pratique dédoublée en deux pièces, qui, engagées à rotation sur le même axe 22 que la manette de commande 11, sont chacune respectivement accolées aux deux flancs de celle-ci.As indicated above for the contact support 12, the cam 25 thus formed is in practice split into two parts, which, engaged in rotation on the same axis 22 as the control lever 11, are each respectively attached to the two sides of the latter this.

Le cliquet mobile 26 et le cliquet fixe 30 sont globalement disposés en positions globalement opposées l'un par rapport à l'autre de part et d'autre de la came 25, et donc de part et d'autre de la manette de commande 11.The movable pawl 26 and the fixed pawl 30 are generally disposed in generally opposite positions relative to each other on either side of the cam 25, and therefore on either side of the control lever 11 .

Le cliquet mobile 26, qui est constitué par une pièce unique, se présente sous la forme générale d'une chape, en présentant, d'une part, deux bras 37, par lesquels il est articulé, par un axe 38, sur un bossage 39 prévu radialement en saillie à cet effet sur la manette de commande 11, et dont les extrémités, pour coopération avec les deux pièces constitutives de la came 25, forment chacune un bec 27, et, d'autre part, reliant ces bras 37 à leur base, une traverse 40.The movable pawl 26, which is constituted by a single piece, is in the general form of a yoke, having, on the one hand, two arms 37, by which it is articulated, by an axis 38, on a boss 39 provided radially projecting for this purpose on the control lever 11, and the ends of which, for cooperation with the two constituent parts of the cam 25, each form a spout 27, and, on the other hand, connecting these arms 37 to their base, a cross 40.

Pour des raisons qui apparaîtront ci-après, cette traverse 40 présente, du côté de la manette de commande 11, en saillie en direction de celle-ci, un doigt 41, et, du côté opposé, un bossage 42.For reasons which will appear below, this cross member 40 has, on the side of the control lever 11, projecting in the direction of the latter, a finger 41, and, on the opposite side, a boss 42.

En pratique, le cliquet mobile 26 ainsi constitué et la manette de commande 11 ont en commun des moyens élastiques de rappel, qui, prenant appui sur un flasque 20, sollicitent, conjointement, la manette de commande 11 en direction de sa position d'ouverture et le cliquet mobile 26 en direction de la came 25.In practice, the movable pawl 26 thus formed and the control handle 11 have in common elastic return means, which, bearing on a flange 20, jointly urge the control handle 11 towards its open position and the movable pawl 26 in the direction of the cam 25.

Dans la forme de réalisation représentée, et ainsi qu' il est visible sur la seule figure 3, ces moyens élastiques de rappel sont constitués par un ressort de torsion 43, dont la partie centrale de torsion 44 est engagée sur un bossage cylindrique 45 de la manette de commande 11, et dont une, 46, des branches, porte sur un pion 47 prévu en saillie à cet effet sur un flasque 20 tandis que l'autre, 48, porte sur le doigt 41 du cliquet mobile 26.In the embodiment shown, and as can be seen in FIG. 3 alone, these elastic return means consist of a torsion spring 43, the central torsion part 44 of which is engaged on a cylindrical boss 45 of the control lever 11, and one of which, 46, of the branches, bears on a pin 47 provided projecting for this purpose on a flange 20 while the other, 48, bears on the finger 41 of the movable pawl 26.

Comme le cliquet mobile 26, le cliquet fixe 30 est constitué par une pièce unique.Like the movable pawl 26, the fixed pawl 30 is constituted by a single piece.

Dans la forme de réalisation représentée, il se présente sous la forme d'un cadre, qui, par l'une, 49, de ses traverses, est engagé à rotation sur un axe 50 fixe par rapport aux flasques 20, et donc par rapport au boîtier 10, cet axe 50 étant par exemple en prise à cet effet avec un bossage cylindrique 51 d'un de ces flasques 20, et dont les deux montants 52 présentent, chacun respectivement, le cran 31 propre à coopérer avec le deuxième cran 32 des pièces constitutives de la came 25.In the embodiment shown, it is in the form of a frame, which, by one, 49, of its crosspieces, is engaged in rotation on an axis 50 fixed relative to the flanges 20, and therefore relative to the housing 10, this axis 50 being for example engaged for this purpose with a cylindrical boss 51 of one of these flanges 20, and the two uprights 52 of which each have the notch 31 adapted to cooperate with the second notch 32 constituent parts of the cam 25.

Pour la sollicitation en pivotement du cliquet fixe 30 ainsi constitué, dans le sens pour lequel, suivant la flèche F2 de la figure 2, il est apte à venir en prise, par son cran 31, avec le cran 32 de la came 25, cette came 25 présente une rampe 53 dont le trajet interfère avec un bras 54 prévu à cet effet sur ce cliquet fixe 30.For the pivoting stress of the fixed pawl 30 thus formed, in the direction for which, according to arrow F2 in FIG. 2, it is able to engage, by its notch 31, with the notch 32 of the cam 25, this cam 25 has a ramp 53 whose path interferes with an arm 54 provided for this purpose on this fixed pawl 30.

Dans la forme de réalisation représentée, la rampe 53 de la came 25 est formée par celui des flancs de son dièdre rentrant 36 qui est opposé à son cran 32, et le bras 54 du cliquet fixe 30 s'étend à compter de sa traverse 49, sensiblement perpendiculairement à ses montants 52.In the embodiment shown, the ramp 53 of the cam 25 is formed by that of the sides of its re-entering dihedral 36 which is opposite to its notch 32, and the arm 54 of the fixed pawl 30 extends from its cross 49 , substantially perpendicular to its uprights 52.

Au cliquet fixe 30 sont associés des moyens élastiques de rappel qui le sollicitent en pivotement dans le sens opposé au précédent, c'est-à-dire dans le sens opposé à celui pour lequel il est apte à venir en prise avec le cran 32 correspondant de la came 25.The fixed pawl 30 is associated with elastic return means which urge it to pivot in the opposite direction to the previous one, that is to say in the opposite direction to that for which it is able to engage with the corresponding notch 32 of cam 25.

Dans la forme de réalisation représentée, et ainsi qu'il est visible sur la seule figure 3, ces moyens élastiques de rappel comportent un ressort de torsion 55, dont la partie centrale de torsion 56 est engagée sur un prolongement de moindre diamètre 57 du bossage cylindrique 51 correspondant du flasque 20 concerné et dont une, 58, des branches prend appui sur un pion 59 prévu en saillie à cet effet sur ce flasque 20 tandis que l'autre, 60, porte sur un ergot 61 également prévu latéralement en saillie à cet effet sur celui des montants 52 de ce cliquet fixe 30 qui est proche de ce flasque 20.In the embodiment shown, and as can be seen in FIG. 3 alone, these elastic return means comprise a torsion spring 55, the central torsion part 56 of which is engaged on a smaller diameter extension 57 of the boss cylindrical 51 corresponding to the flange 20 concerned and one of which, 58, of the branches bears on a pin 59 provided for projecting for this purpose on this flange 20 while the other, 60, relates to a lug 61 also provided laterally projecting at this effect on that of the uprights 52 of this fixed pawl 30 which is close to this flange 20.

Au cliquet fixe 30 est associé un levier de verrouillage 62, qui, monté rotatif par rapport aux flasques 20, et donc par rapport au boîtier 10, est apte, par un becquet 63, à maintenir ledit cliquet fixe 30 en prise avec le cran 32 correspondant de la came 25, en portant, alors, simplement par son extrémité libre, et tel que représenté à la figure 4, sur la traverse 64 de ce cliquet fixe 30 opposée à celle, 49, à partir de laquelle s'étend son bras 54.With the fixed pawl 30 is associated a locking lever 62, which, rotatably mounted relative to the flanges 20, and therefore relative to the housing 10, is able, by a spoiler 63, to hold said fixed pawl 30 in engagement with the notch 32 corresponding to the cam 25, carrying, then, simply by its free end, and as shown in FIG. 4, on the crosspiece 64 of this fixed pawl 30 opposite to that, 49, from which extends its arm 54.

En pratique, ce levier de verrouillage 62 est engagé à rotation sur un axe fixe 65 en prise avec un bossage cylindrique 66 d'un des flasques 20, et il lui est associé des moyens élastiques de rappel qui sollicitent en permanence son becquet 63 en direction de la traverse 64 du cliquet fixe 30.In practice, this locking lever 62 is rotatably engaged on a fixed axis 65 engaged with a cylindrical boss 66 of one of the flanges 20, and it is associated with elastic return means which permanently urge its spoiler 63 towards of the cross member 64 of the fixed pawl 30.

Dans la forme de réalisation représentée, et ainsi qu'il est visible sur la seule figure 3, ces moyens élastiques de rappel sont constitués par un ressort de torsion 67 dont la partie centrale de torsion 68 est engagée sur le bossage cylindrique 66 correspondant du flasque 20 concerné, et dont une, 69, des branches prend appui sur un pion 70 prévu en saillie à cet effet sur ce flasque 20 tandis que l'autre, 71, porte sur un ergot 72 également prévu latéralement en saillie à cet effet sur le levier de verrouillage 62.In the embodiment shown, and as can be seen in FIG. 3 alone, these elastic return means consist of a torsion spring 67, the central torsion part 68 of which is engaged on the corresponding cylindrical boss 66 of the flange 20 concerned, and one of which, 69, of the branches is supported on a pin 70 provided projecting for this purpose on this flange 20 while the other, 71, relates to a lug 72 also provided laterally projecting for this purpose on the locking lever 62.

Au levier de verrouillage 62 est en outre associé un levier de déverrouillage 73, qui, monté rotatif par rapport aux flasques 20, et donc par rapport au boîtier 10, en étant, en pratique, engagé en rotation, à cet effet, sur l'axe 22 de la manette de commande 11, comporte, d'une part, en bout d'un doigt 74, un bossage 75, par lequel il interfère avec le trajet d'un bossage 76 que comporte, radialement en saillie, pour lui, la manette de commande 11, et, d'autre part, un ergot 77 par lequel, après contournement du levier de verrouillage 62, il est apte à agir sur ce levier de verrouillage 62.The locking lever 62 is also associated with an unlocking lever 73, which, rotatably mounted relative to the flanges 20, and therefore relative to the housing 10, being, in practice, engaged in rotation, for this purpose, on the axis 22 of the control lever 11, comprises, on the one hand, at the end of a finger 74, a boss 75, by which it interferes with the path of a boss 76 which, for him, has radially projecting, the control lever 11, and, on the other hand, a lug 77 by which, after bypassing the locking lever 62, it is able to act on this locking lever 62.

Dans la forme de réalisation représentée, et pour des raisons qui, ne ressortant pas de la présente invention, ne seront pas développées ici, ce levier de déverrouillage 73 se prolonge par un bras 78 de l'autre côté de l'axe 22 de la manette de commande 11.In the embodiment shown, and for reasons which, not being apparent from the present invention, will not be developed here, this unlocking lever 73 is extended by an arm 78 on the other side of the axis 22 of the control lever 11.

S'agissant, en pratique, d'un interrupteur différentiel, c'est-à-dire d'un interrupteur comportant un relais 79 sensible à un courant différentiel, le percuteur 80 de ce relais sensible 79 est apte à agir sur le levier de verrouillage 62 par l'intermédiaire d'un levier de réarmement 81 monté rotatif par rapport aux flasques 20, et donc par rapport au boîtier 10.Being, in practice, a differential switch, that is to say a switch comprising a relay 79 sensitive to a differential current, the striker 80 of this sensitive relay 79 is able to act on the lever locking 62 by means of a reset lever 81 rotatably mounted relative to the flanges 20, and therefore relative to the housing 10.

Dans la forme de réalisation représentée, ce levier de réarmement 81 est engagé à rotation sur l'axe 65 du levier de verrouillage 62, celui-ci formant une chape entre les bras de laquelle il s'étend, et il comporte, d'une part, un bras rigide 82, par lequel il est apte à agir sur le percuteur 80 du relais sensible 79, et par l'intermédiaire duquel ledit percuteur 80 est apte à agir sur ledit levier de verrouillage 62, et, d'autre part, un bras élastiquement déformable 83 sur lequel porte le cliquet fixe 30.In the embodiment shown, this reset lever 81 is rotatably engaged on the axis 65 of the locking lever 62, the latter forming a yoke between the arms of which it extends, and it comprises, with firstly, a rigid arm 82, by which it is capable of acting on the striker 80 of the sensitive relay 79, and by means of which said striker 80 is capable of acting on said locking lever 62, and, secondly, an elastically deformable arm 83 on which the fixed pawl 30 carries.

En pratique, ce bras élastiquement déformable 83 comporte, lui-même, une partie rigide, en U, 84, dont est solidaire le bras rigide 82, et un ressort en forme de crosse 85, qui, par sa base, est en prise avec la partie rigide 84, et qui, par son extrémité libre, porte sur la traverse 64 du cliquet fixe 30.In practice, this elastically deformable arm 83 itself comprises a rigid U-shaped part 84 of which the rigid arm 82 is integral, and a butt-shaped spring 85 which, by its base, is engaged with the part rigid 84, and which, by its free end, bears on the crosspiece 64 of the fixed pawl 30.

A l'extrémité du levier de verrouillage 62, il est prévu, pour l'action du percuteur 80 du relais sensible 79, une vis 86 permettant d'ajuster la course de fonctionnement correspondante.At the end of the locking lever 62, there is provided, for the action of the striker 80 of the sensitive relay 79, a screw 86 making it possible to adjust the corresponding operating stroke.

Le mécanisme à déclenchement brusque 14 comporte, encore, un coulisseau 87, qui, monté mobile en translation par rapport aux flasques 20, et donc par rapport au boîtier 10, engrène, par un doigt 88, avec la came 25, un levier d'accrochage 89, qui, monté rotatif par rapport aux flasques 20, et donc par rapport au boîtier 10, présente, d'une part, un cran 90, par lequel il est apte à se crocheter sur un cran 91 du support de contact 12, pour la retenue de celui-ci, et, d'autre part, une rampe 92, par laquelle, pour son pivotement, et ainsi la libération dudit support de contact 12, il interfère avec le trajet d'un pion 93 solidaire du coulisseau 87, et, tel qu'explicité ultérieurement, des moyens élastiques de pression de contact aptes à agir en fermeture sur le support de contact 12 en prenant en pratique appui sur ledit coulisseau 87.The snap-action mechanism 14 also includes a slide 87, which, mounted movable in translation relative to the flanges 20, and therefore relative to the housing 10, engages, by a finger 88, with the cam 25, a lever attachment 89, which, rotatably mounted relative to the flanges 20, and therefore relative to the housing 10, has, on the one hand, a notch 90, by which it is capable of being hooked on a notch 91 of the contact support 12, for retaining the latter, and, on the other hand, a ramp 92, by which, for its pivoting, and thus the release of said contact support 12, it interferes with the path of a pin 93 secured to the slide 87 , and, as explained later, elastic contact pressure means capable of acting in closing on the contact support 12 while in practice bearing on said slide 87.

Dans la forme de réalisation représentée, le coulisseau 87, qui, comme le support de contact 12 et la came 25, est dédoublé en deux pièces disposées chacune respectivement de part et d'autre de la manette de commande 11, alors que le levier d'accrochage 89 forme une pièce unique, comporte, globalement, deux branches en équerre, à savoir, une branche 94, qui porte son doigt 88, et une branche 95 en bout de laquelle il présente transversalement en saillie un doigt 96 par lequel il est apte à agir sur le contact mobile 13 correspondant pour l'entraînement en ouverture de celui-ci, tandis que le pion 93 qu'il porte s'étend sensiblement dans sa zone de coude, à l'intersection de ses branches 94 et 95.In the embodiment shown, the slide 87, which, like the contact support 12 and the cam 25, is split into two pieces each arranged respectively on either side of the control lever 11, while the lever d hooking 89 forms a single piece, comprises, overall, two angled branches, namely, a branch 94, which carries its finger 88, and a branch 95 at the end of which it has a transversely projecting finger 96 by which it is able to act on the corresponding movable contact 13 for driving the opening thereof, while the pin 93 which it carries extends substantially in its elbow region, at the intersection of its branches 94 and 95.

Au coulisseau 87 ainsi constitué sont associés des moyens élastiques de rappel le sollicitant en permanence en ouverture.The slide 87 thus formed is associated with elastic return means which permanently urge it to open.

Dans la forme de réalisation représentée, et ainsi qu'il est visible sur la seule figure 3, ces moyens elastiques de rappel sont constitués par un ressort de torsion 97 dont la partie centrale de torsion 98 est engagée sur un bossage cylindrique 99 d'un des flasques 20, et dont une, 100, des branches, prend appui sur le bossage cylindrique 101 de ce flasque 20 autour duquel pivote la manette de commande 11 tandis que l'autre, 102, porte sur un épaulement 103 prévu, latéralement, en oblique, à cet effet, sur le flanc interne de la branche 95 du coulisseau 87.In the embodiment shown, and as can be seen in FIG. 3 alone, these elastic return means consist of a torsion spring 97, the central torsion part 98 of which is engaged on a cylindrical boss 99 of a flanges 20, and one of which, 100, of branches, bears on the cylindrical boss 101 of this flange 20 around which the control lever 11 pivots while the other, 102, bears on a shoulder 103 provided, laterally, in oblique, for this purpose, on the internal flank of the branch 95 of the slide 87.

Pour coopération avec le doigt 88 de ce coulisseau 87, la came 25 présente, angulairement à mi-distance entre ses crans 28 et 32, un évidement 104, et, par exemple, et tel que représenté, une échancrure, qui s'étend sensiblement radialement, et dans laquelle est engagé ledit doigt 88.For cooperation with the finger 88 of this slide 87, the cam 25 has, angularly halfway between its notches 28 and 32, a recess 104, and, for example, and as shown, a notch, which extends substantially radially, and in which said finger 88 is engaged.

En pratique, dans la forme de réalisation représentée, ce doigt 88 traverse de part en part le coulisseau 87, et, tel que schématisé en traits interrompus sur les figures 1 et 2, il participe ainsi au guidage en coulissement de celui-ci, en étant à cet effet en prise avec une rainure 105 du flasque 20 proche.In practice, in the embodiment shown, this finger 88 passes right through the slider 87, and, as shown diagrammatically in broken lines in FIGS. 1 and 2, it thus participates in the sliding guide of the latter, in being for this purpose engaged with a groove 105 of the flange 20 close.

Il en est de même pour le doigt 96, celui-ci étant en prise avec une rainure 106 solidaire du flasque 20 proche.It is the same for the finger 96, the latter being engaged with a groove 106 integral with the flange 20 near.

Le levier d'accrochage 89, qui forme une pièce unique, se présente, dans la forme de réalisation représentée, sous la forme d'une chape, qui, par sa zone médiane, intermédiaire entre son cran 90 et sa rampe 92, est engagée à rotation sur un axe fixe 107 en prise avec un bossage cylindrique 108 du flasque 20, et en bout de chacune des deux branches de laquelle est prévu un tel cran 90, pour coopération, chacune respectivement, avec les deux pièces constitutives du support de contact 12.The attachment lever 89, which forms a single piece, is, in the embodiment shown, in the form of a yoke, which, by its median zone, intermediate between its notch 90 and its ramp 92, is engaged rotating on a fixed axis 107 engaged with a cylindrical boss 108 of the flange 20, and at the end of each of the two branches of which is provided such a notch 90, for cooperation, each respectively, with the two component parts of the contact support 12.

Au levier d'accrochage 89 ainsi constitué sont associés des moyens élastiques de rappel qui le sollicitent en permanence en direction du cran 91 correspondant de ce support de contact 12.The hooking lever 89 thus formed is associated with elastic return means which permanently urge it in the direction of the corresponding notch 91 of this contact support 12.

Dans la forme de réalisation représentée, et ainsi qu'il est visible sur la seule figure 3, ces moyens élastiques de rappel sont constitués par un ressort de torsion 109, dont la partie centrale de torsion 110 est engagée sur un bossage cylindrique 108 du levier d accrochage 89 et dont une, 111, des branches, prend appui sur un pion 112 prévu en saillie à cet effet sur le flasque 20 proche tandis que l'autre, 113, porte sur un ergot 114 également prévu latéralement en saillie à cet effet sur le levier d'accrochage 89, du côté de sa rampe 92.In the embodiment shown, and as can be seen in FIG. 3 alone, these elastic return means consist of a torsion spring 109, the central torsion part 110 of which is engaged on a cylindrical boss 108 of the lever d attachment 89 and of which one, 111, of the branches, is supported on a pin 112 provided for projecting for this purpose on the flange 20 close while the other, 113, relates to a lug 114 also provided laterally projecting for this purpose on the attachment lever 89, on the side of its ramp 92.

Le support de contact 12 est engagé à rotation sur un axe fixe 115 en prise avec un bossage cylindrique 116 d'un au moins des flasques 20.The contact support 12 is rotatably engaged on a fixed axis 115 engaged with a cylindrical boss 116 of at least one flanges 20.

Les contacts mobiles 13, qui l'encadrent, y sont rapportés latéralement, par exemple par sertissage.The movable contacts 13, which surround it, are attached to it laterally, for example by crimping.

Dans la forme de réalisation représentée, le support de contact 12 est apte, par un appendice 117, à coopérer avec le bossage 42 du cliquet mobile 26, d'abord en poussée, pour l'échappement de ce cliquet mobile 26 par rapport au cran 28 de la manette de commande 11, puis en appui, pour la retenue en position de fermeture de celle-ci.In the embodiment shown, the contact support 12 is able, by an appendix 117, to cooperate with the boss 42 of the movable pawl 26, first in thrust, for the escape of this movable pawl 26 relative to the notch 28 of the control lever 11, then in support, for the retention in the closed position thereof.

En outre, dans cette forme de réalisation, il engrène, par un bras 118 muni à cet effet d'un doigt 119, avec un indicateur de position 120, qui, monté rotatif par rapport aux flasques 20, et donc par rapport au boîtier 10, en étant engagé à cet effet en rotation sur un axe fixe 121 porté par le flasque 20, présente, radialement, en creux, une échancrure 122 avec laquelle est en prise ledit doigt 119, et qui est ainsi susceptible d'occuper, à niveau avec la paroi de façade du boîtier 10, l'une ou l'autre de deux positions distinctes, l'une d'ouverture, figures 1 à 3, l'autre de fermeture, figure 6.In addition, in this embodiment, it meshes, by an arm 118 provided for this purpose with a finger 119, with a position indicator 120, which, rotatably mounted relative to the flanges 20, and therefore relative to the housing 10 , being engaged for this purpose in rotation on a fixed axis 121 carried by the flange 20, has, radially, in hollow, a notch 122 with which is engaged said finger 119, and which is thus capable of occupying, level with the front wall of the housing 10, one or the other of two distinct positions, one opening, FIGS. 1 to 3, the other closing, FIG. 6.

Enfin, et ainsi qu'il est visible sur la seule figure 3, les moyens élastiques de pression de contact interposés entre le coulisseau 87 et le support de contact 12 sont constitués, dans la forme de réalisation représentée, par un ressort de torsion 124 dont la partie centrale de torsion 125 est engagée sur le bossage cylindrique 116 du flasque 20 concerné, et dont une, 126, des branches porte sur un bossage 127 prévu latéralement à cet effet en saillie sur le flanc externe de la branche 95 du coulisseau 87 tandis que l'autre, 128, porte sur un ergot 129 également prévu latéralement en saillie à cet effet sur le support de contact 12.Finally, and as can be seen in FIG. 3 alone, the elastic contact pressure means interposed between the slider 87 and the contact support 12 are constituted, in the embodiment shown, by a torsion spring 124 of which the central torsion part 125 is engaged on the cylindrical boss 116 of the flange 20 concerned, and one of which, 126, of the branches bears on a boss 127 provided laterally for this purpose projecting from the external flank of the branch 95 of the slide 87 while the other, 128, bears on a lug 129 also provided laterally projecting for this purpose on the contact support 12.

En pratique, il y a ainsi deux ressorts de torsion 124, à raison d'un par pièce constitutive du support de contact 12 et par pièce constitutive du coulisseau 87.In practice, there are thus two torsion springs 124, one per component constituting the contact support 12 and per component constituting the slide 87.

En position d'ouverture, figures 1 à 3, la manette de commande 11 est basculée d'un premier côté, le côté gauche sur ces figures, et elle se trouve élastiquement maintenue dans cette position de basculement par le ressort 43 constituant ses moyens élastiques de rappel, ce ressort 43 agissant sur elle par l'intermédiaire du cliquet mobile 26 qui lui est attelé.In the open position, Figures 1 to 3, the control lever 11 is tilted on a first side, the left side in these figures, and it is resiliently held in this tilting position by the spring 43 constituting its elastic means reminder, this spring 43 acting on it by means of the movable pawl 26 which is coupled to it.

Conjointement, sous la sollicitation, pour l'essentiel, du ressort 97 constituant ses moyens élastiques de rappel, et, dans une certaine mesure, du ressort 124 constituant les moyens élastiques de pression de contact, le coulisseau 87 est en position reculée d'ouverture, et la came 25 avec laquelle il engrène par son doigt 88 se trouve alors circulairement en appui, par son cran 28, contre le bec 27 du cliquet mobile 26.Jointly, under the stress, for the most part, of the spring 97 constituting its elastic return means, and, to a certain extent, of the spring 124 constituting the elastic contact pressure means, the slider 87 is in the retracted opening position , and the cam 25 with which it meshes with its finger 88 is then circularly supported, by its notch 28, against the spout 27 of the movable pawl 26.

En prise, par son cran 90, avec le cran 91 du support de contact 12, le levier d'accrochage 89, maintenu dans la position correspondante par le ressort 109 constituant ses moyens élastiques de rappel, maintient en position d'ouverture ce support de contact 12.In engagement, by its notch 90, with the notch 91 of the contact support 12, the latching lever 89, maintained in the corresponding position by the spring 109 constituting its elastic return means, maintains this support in the open position contact 12.

Les contacts mobiles 13 sont donc alors ainsi maintenus écartés des contacts fixes 15.The movable contacts 13 are therefore thus kept apart from the fixed contacts 15.

Corollairement, sous la sollicitation du ressort 55 constituant ses moyens élastiques de rappel, le cliquet fixe 30 se trouve hors service, son cran 31 étant à distance du cran 32 de la came 25, cependant que l'extrémité de son bras 54 est au voisinage immédiat de la base de la rampe 53 de celle-ci et que sa traverse 64 s'étend à la racine du becquet 63 du levier de verrouillage 62.As a corollary, under the bias of the spring 55 constituting its elastic return means, the fixed pawl 30 is out of service, its notch 31 being at a distance from the notch 32 of the cam 25, while the end of its arm 54 is in the vicinity immediately from the base of ramp 53 of the latter and that its crosspiece 64 extends to the root of the spoiler 63 of the locking lever 62.

Sous la sollicitation du ressort 67 constituant ses moyens élastiques de rappel, le levier de verrouillage 62, quant à lui, se trouve en appui contre l'ergot 77 du levier de déverrouillage 73, et, celui-ci étant conjointement en appui, par son bossage 75, contre le bossage 76 de la manette de commande 11, sous la sollicitation du même ressort 67, la vis 86 portée par le levier de verrouillage 62 se trouve écartée du bras 82 du levier de réarmement 81, cependant que, celui-ci, sous la sollicitation du ressort 55 constituant les moyens élastiques de rappel du cliquet fixe 30, et par l'intermédiaire de ce dernier, se trouve appliqué contre le percuteur 80 du relais sensible 79.Under the stress of the spring 67 constituting its elastic return means, the locking lever 62, for its part, is in abutment against the lug 77 of the unlocking lever 73, and, the latter being jointly in abutment, by its boss 75, against the boss 76 of the control lever 11, under the stress of the same spring 67, the screw 86 carried by the locking lever 62 is spaced from the arm 82 of the reset lever 81, however, the latter , under the bias of the spring 55 constituting the elastic return means of the fixed pawl 30, and by means of the latter, is applied against the striker 80 of the sensitive relay 79.

Si, à partir de cette position d'ouverture la manette de commande 11 est basculée, de gauche à droite, suivant la flèche F1 de la figure 2, le cliquet mobile 26 qu'elle porte entraîne avec elle, dans le même sens, la came 25, du fait que, par son bec 27, il engrène alors avec le cran 28 de celle-ci.If, from this open position, the control handle 11 is tilted, from left to right, along the arrow F1 in FIG. 2, the movable pawl 26 which it carries carries with it, in the same direction, the cam 25, due to the fact that, through its beak 27, it then meshes with the notch 28 thereof.

Il en résulte un déplacement du coulisseau 87 de la droite vers la gauche, suivant la flèche F3 des figures 2 et 3, en sorte que le ressort 124 constituant les moyens elastiques de pression de contact, en appui contre l'ergot 129 du support de contact 12 toujours retenu en position d'ouverture par le levier d'accrochage 89, se trouve progressivement bandé.This results in a displacement of the slide 87 from the right to the left, along the arrow F3 of Figures 2 and 3, so that the spring 124 constituting the elastic contact pressure means, bearing against the lug 129 of the support contact 12 still retained in the open position by the latching lever 89, is progressively bandaged.

Lorsque, dans son trajet, le pion 93 du coulisseau 87 vient porter sur la rampe 92 du levier d'accrochage 89, tel que représenté à la figure 4, il en provoque progressivement le basculement à l'encontre du ressort 109 constituant ses moyens élastiques de rappel, suivant la flèche F4 de cette figure 4.When, in its path, the pin 93 of the slide 87 comes to bear on the ramp 92 of the latching lever 89, as shown in Figure 4, it gradually causes the tilting against the spring 109 constituting its elastic means reminder, according to arrow F4 in this figure 4.

Corollairement, au cours de son entraînement par le cliquet mobile 26, la came 25 provoque, par sa rampe 53, un pivotement, suivant la flèche F2 des figures 2 et 4, du cliquet fixe 30, cette rampe 53 venant porter contre l'extrémité du bras 54 de ce cliquet fixe 30, et, du fait de son obliquité, contraignant alors ce bras 54, et donc le cliquet fixe 30, à la suivre.As a corollary, during its drive by the movable pawl 26, the cam 25 causes, by its ramp 53, a pivoting, along the arrow F2 of FIGS. 2 and 4, of the fixed pawl 30, this ramp 53 coming to bear against the end of the arm 54 of this fixed pawl 30, and, because of its obliquity, then constraining this arm 54, and therefore the fixed pawl 30, to follow it.

Ce pivotement du cliquet fixe 30 conduit progressivement son cran 31 à s'engager sur le trajet du cran 32 de la came 25.This pivoting of the fixed pawl 30 progressively leads its notch 31 to engage on the path of the notch 32 of the cam 25.

Il le conduit également à suivre, par sa traverse 64, le becquet 63 du levier de verrouillage 62, jusqu'à libérer celui-ci, tel que représenté à la figure 5.It also leads it to follow, through its crosspiece 64, the spoiler 63 of the locking lever 62, until it is released, as shown in FIG. 5.

Ainsi libéré, et sous la sollicitation du ressort 67 constituant ses moyens élastiques de rappel, le levier de verrouillage 62 pivote autour de l'axe 65, suivant la flèche F5 de la figure 5, ce qui le conduit à porter, par la vis 86 qu'il porte, sur le bras 82 du levier de réarmement 81, lui-même en appui sur le percuteur 80 du relais sensible 79.Thus released, and under the bias of the spring 67 constituting its elastic return means, the locking lever 62 pivots about the axis 65, along the arrow F5 in FIG. 5, which leads it to be carried, by the screw 86 that it carries, on the arm 82 of the reset lever 81, itself in contact with the striker 80 of the sensitive relay 79.

Le pivotement de la manette de commande 11 étant poursuivi, suivant la flèche F1 de la figure 5, le cran 90 du levier d'accrochage 89 échappe au cran 91 du support de contact 12.The pivoting of the control lever 11 being continued, along the arrow F1 of FIG. 5, the notch 90 of the hooking lever 89 escapes the notch 91 of the contact support 12.

Le support de contact 12 étant ainsi libéré, le ressort 124 constituant les moyens élastiques de pression de contact se détend brusquement, en provoquant la rotation de ce support de contact 12 autour de son axe 115, suivant la flèche F6 de la figure 6, ce qui conduit, d'une part, chaque contact mobile 13 à s'appliquer contre le contact fixe 15 correspondant, et, d'autre part, l'indicateur de position 120 à pivoter de l'une à l'autre de ses positions, en signalant ainsi la fermeture dès lors effectuée.The contact support 12 being thus released, the spring 124 constituting the elastic contact pressure means suddenly relaxes, causing the rotation of this contact support 12 about its axis 115, along arrow F6 of FIG. 6, which leads, on the one hand, each movable contact 13 to be applied against the corresponding fixed contact 15, and, on the other hand, the position indicator 120 to pivot from one to the other of its positions, thus signaling the closure when carried out.

Le pivotement de la manette de commande 11 étant poursuivi, le support de contact 12 vient, très peu après, agir en poussée, par son appendice 117, sur le bossage 42 du cliquet mobile 26, et, celui-ci pivotant dès lors autour de son axe 38, suivant la flèche F7 de la figure 6, son bec 27 échappe au cran 28 de la came 25.The pivoting of the control lever 11 being continued, the contact support 12 comes, very soon after, to act in thrust, by its appendage 117, on the boss 42 of the movable pawl 26, and, the latter therefore pivoting around its axis 38, along arrow F7 in FIG. 6, its beak 27 escapes the notch 28 of the cam 25.

Cette came 25 étant ainsi libérée, elle est l'objet, sous la sollicitation du ressort 43 constituant ses moyens élastiques de rappel, ceux-ci intervenant par l'intermédiaire du cliquet mobile 26, d'un mouvement rétrograde autour de l'axe 22, suivant la flèche F8 de la figure 6, ce qui la conduit à venir en prise, par son cran 32, avec le cran 31 du cliquet fixe 30, cependant que, celui-ci, sous la sollicitation du ressort 55 constituant ses moyens élastiques de rappel, vient en butée, par sa traverse 64 contre le becquet 63 du levier de verrouillage 62.This cam 25 being thus released, it is the object, under the stress of the spring 43 constituting its elastic return means, these intervening by by means of the movable pawl 26, in a retrograde movement around the axis 22, along arrow F8 in FIG. 6, which leads it to engage, by its notch 32, with the notch 31 of the fixed pawl 30, however, that the latter, under the bias of the spring 55 constituting its elastic return means, comes into abutment, by its crosspiece 64 against the spoiler 63 of the locking lever 62.

Par l'"accrochage" ainsi réalisé entre la traverse 64 du cliquet 30 et le becquet 63 du levier de verrouillage 62, le cliquet fixe 30 se trouve maintenu en position de fermeture, à l'encontre du ressort 55 constituant ses moyens élastiques de rappel, et, par l'"accrochage" réalisé entre son cran 31 et le cran 32 de la came 25, il maintient lui-même cette came 25, et donc le coulisseau 87, qui, du fait du mouvement rétrograde de la came 25, a légèrement reculé, en position de fermeture.By the "hooking" thus produced between the crosspiece 64 of the pawl 30 and the spoiler 63 of the locking lever 62, the fixed pawl 30 is held in the closed position, against the spring 55 constituting its elastic return means , and, by the "hooking" produced between its notch 31 and the notch 32 of the cam 25, it itself holds this cam 25, and therefore the slide 87, which, due to the retrograde movement of the cam 25, slightly back, in the closed position.

Le mouvement de pivotement de la manette de commande 11 étant poursuivi, le bossage 42 du cliquet mobile 26 qu'elle entraîne franchit, par effacement élastique de ce cliquet mobile 26, l'appendice 117 du support de contact 12, en sorte que lorsque, au terme de son mouvement de pivotement, la manette de commande 11 est abandonnée, elle demeure dans la position de fermeture qui est alors la sienne, par appui de ce bossage 42 du cliquet mobile 26 contre cet appendice 117 du support de contact 12, tel qu' il est représenté à la figure 6.The pivoting movement of the control lever 11 being continued, the boss 42 of the movable pawl 26 which it drives crosses, by elastic erasure of this movable pawl 26, the appendix 117 of the contact support 12, so that when, at the end of its pivoting movement, the control lever 11 is abandoned, it remains in the closed position which is then its, by pressing this boss 42 of the movable pawl 26 against this appendage 117 of the contact support 12, such that it is represented in figure 6.

Si, à partir de la position de fermeture ainsi obtenue, il est appliqué, à la manette de commande 11, suivant la flèche F9 de la figure 6, un mouvement de basculement, de la droite vers la gauche, inverse du précédent, et suffisamment accentué pour que, par effacement élastique, le bossage 42 du cliquet mobile 26 échappe à l'appendice 117 du support de contact 12, la manette de commande 11, ainsi libérée, revient d'elle-même en position d'ouverture, sous la sollicitation du ressort 43 constituant ses moyens élastiques de rappel.If, from the closed position thus obtained, it is applied to the control lever 11, according to arrow F9 in FIG. 6, a tilting movement, from right to left, reverse of the previous one, and sufficiently accentuated so that, by elastic erasure, the boss 42 of the movable pawl 26 escapes the appendix 117 of the contact support 12, the control lever 11, thus freed, returns itself to the open position, under the biasing of the spring 43 constituting its elastic return means.

Lors de son mouvement de pivotement correspondant, elle vient, par son bossage 76 interférer avec le bossage 75 du levier de déverrouillage 73, et celui-ci se trouve dès lors entraîné en rotation avec elle autour de l'axe 22.During its corresponding pivoting movement, it comes, through its boss 76 to interfere with the boss 75 of the unlocking lever 73, and the latter is therefore driven in rotation with it around the axis 22.

Agissant, par son ergot 77, sur le levier de verrouillage 62, le levier de déverrouillage 73 provoque la cassure de l'accrochage précédemment établi entre le becquet 63 de ce levier de verrouillage 62 et la traverse 64 du cliquet fixe 30, en sorte que, celui-ci revenant en position d'ouverture sous la sollicitation du ressort 55 constituant ses moyens élastiques de rappel, par pivotement, suivant la flèche F10 de la figure 6, autour de l'axe 50, il libère la came 25 et donc le coulisseau 87 qui engrène avec elle.Acting, by its lug 77, on the locking lever 62, the unlocking lever 73 causes the breaking of the attachment previously established between the spoiler 63 of this locking lever 62 and the crosspiece 64 of the fixed pawl 30, so that , the latter returning to the open position under the bias of the spring 55 constituting its elastic return means, by pivoting, along the arrow F10 of FIG. 6, around the axis 50, it releases the cam 25 and therefore the slide 87 which meshes with it.

Sous la sollicitation du ressort 97 constituant ses moyens élastiques de rappel, le coulisseau 87, ainsi libéré, revient brusquement en position reculée d'ouverture, ce qui, d'une part, par son doigt 96, ramène également brusquement en position d'ouverture le contact mobile 13, et donc le support de contact 12 portant celui-ci, avec, en bout de course, un nouveau crochetage de ce support de contact 12 sur le levier d'accrochage 89, celui-ci étant sollicité en conséquence par le ressort 109 constituant ses moyens élastiques de rappel dès lors que le pion 93 du coulisseau 87 a abandonné sa rampe 92, et ce qui, d'autre part, par son doigt 88, provoque également le retour en position d'ouverture de la came 25, avec, en bout de course, un nouveau crochetage, sur celle-ci, du cliquet mobile 26.Under the stress of the spring 97 constituting its elastic return means, the slider 87, thus released, suddenly returns to the retracted open position, which, on the one hand, by its finger 96, also suddenly returns to the open position the movable contact 13, and therefore the contact support 12 carrying the latter, with, at the end of its travel, a new picking of this contact support 12 on the latching lever 89, the latter being urged accordingly by the spring 109 constituting its elastic return means as soon as the pin 93 of the slide 87 has abandoned its ramp 92, and which, on the other hand, by its finger 88, also causes the return of the cam 25 to the open position , with, at the end of the travel, a new hooking, on the latter, of the movable pawl 26.

Dans le cas où, pour la position de fermeture précédente, un courant différentiel suffisant vient à traverser le relais sensible 79, c'est le percuteur 80 de ce relais sensible 79 qui, par l'intermédiaire du bras rigide 82 du levier de réarmement 81, provoque le pivotement du levier de verrouillage 62 conduisant à la cassure de l'accrochage entre le becquet 63 de ce levier de verrouillage 62 et la traverse 64 du cliquet fixe 30, avec, ensuite, le développement d'un processus d'ouverture identique au précédent.In the case where, for the previous closed position, a sufficient differential current comes through the sensitive relay 79, it is the striker 80 of this sensitive relay 79 which, by means of the rigid arm 82 of the reset lever 81 , causes the locking lever 62 to pivot, leading to breakage of the coupling between the spoiler 63 of this locking lever 62 and the crosspiece 64 of the fixed pawl 30, with, then, the development of an identical opening process to the previous one.

Le bras élastiquement déformable 83 du levier de réarmement 81, qui, lors d'une fermeture, a permis, par l'intermédiaire du cliquet fixe 30, et sous la sollicitation du ressort 55 constituant les moyens élastiques de rappel associés à ce cliquet fixe 30, le réarmement du percuteur 80 du relais sensible 79, absorbe, avantageusement, lors d'une ouverture, une partie de l'énergie de choc développée, en ménageant ainsi le relais sensible 79.The elastically deformable arm 83 of the rearming lever 81, which, during closing, has enabled, by means of the fixed pawl 30, and under the bias of the spring 55 constituting the elastic return means associated with this fixed pawl 30 , the resetting of the striker 80 of the sensitive relay 79, advantageously absorbs, during an opening, part of the shock energy developed, thus providing for the sensitive relay 79.

Ainsi qu'il est aisé de le comprendre, hormis les ressorts et les contacts, les divers constituants de l'interrupteur électrique à coupure automatique suivant l'invention peuvent avantageusement être réalisés en matière synthétique, ce qui concourt à l'isolation de l'ensemble.As is easy to understand, apart from the springs and the contacts, the various constituents of the electric switch with automatic cut-off according to the invention can advantageously be made of synthetic material, which contributes to the insulation of the together.

En outre, et ainsi qu'on le notera, les flasques 20 mis en oeuvre dans la forme de réalisation représentée portent l'ensemble des organes mobiles internes au boîtier 10, ainsi, d'ailleurs, que le relais sensible 79, ce qui, au montage, permet avantageusement de rapporter, d'abord, sur ces flasques de support 20, les divers organes concernés, et, ensuite, après les réglages nécessaires, de disposer le tout dans ce boîtier 10, seuls les bornes d'entrée et de sortie et le contact fixe étant directement rapportés sur celui-ci.In addition, and as will be noted, the flanges 20 used in the embodiment shown carry all of the movable members internal to the housing 10, as well, moreover, as the sensitive relay 79, which, during assembly, advantageously makes it possible to report, first, on these support flanges 20, the various members concerned, and, then, after the necessary adjustments, to place everything in this housing 10, only the input and output and the fixed contact being directly attached to it.

Bien entendu, la présente invention ne se limite pas à la forme de réalisation décrite et représentée, mais englobe toute variante d'exécution.Of course, the present invention is not limited to the embodiment described and shown, but encompasses any variant.

Claims (15)

1. Interrupteur électrique à coupure automatique du genre comportant, dans un boîtier (10), entre une manette de commande (11) montée rotative par rapport audit boîtier (10) et un support de contact (12), qui, lui aussi monté rotatif par rapport audit boîtier (10), porte au moins un contact (13), un mécanisme à déclenchement brusque (14) propre à provoquer le pivotement automatique dudit support de contact (12) entre une position de fermeture, pour laquelle il applique contre un contact fixe (15) le contact (13) qu'il porte, dit ci-après contact mobile, et une position d'ouverture pour laquelle il maintient ce contact mobile (13) écarté du contact fixe (15), ledit mécanisme à déclenchement brusque (14) étant sous le contrôle d'une came (25) qui, coaxiale de la manette de commande (11), est montée librement rotative par rapport à celle-ci, avec, associés à ladite came (25), d'une part, un premier cliquet (26), dit ci-après cliquet mobile, qui, monté rotatif sur la manette de commande (11), est apte à coopérer avec un premier cran (28) de la came (25), pour l'entraînement, dans un sens, de celle-ci, et, d'autre part, un deuxième cliquet (30), dit ci-après cliquet fixe, qui, monté rotatif par rapport au boîtier (10), est apte à coopérer avec un deuxième cran (32) de la came (25), pour la retenue de celle-ci dans le sens opposé au précédent, caractérisé en ce que, le mecanisme à déclenchement brusque (14) comportant un coulisseau (87) monté mobile en translation par rapport au boîtier (10), ledit coulisseau (87) engrène par un doigt (88) avec la came (25), et ledit mécanisme à déclenchement brusque comporte en outre un levier d'accrochage (89) qui, monté rotatif par rapport au boîtier (10) présente, d'une part, un cran (90) par lequel il est apte à se crocheter sur un cran (91) du support de contact (12), pour la retenue de celui-ci, et, d'autre part, une rampe (92) par laquelle, pour son pivotement, et ainsi la libération dudit support de contact (12), il interfère avec le trajet d'un pion (93) solidaire du coulisseau (87), et des moyens élastiques de pression de contact (124) aptes à agir en fermeture sur le support de contact (12).1. An electric switch with automatic cut-off of the type comprising, in a housing (10), between a control lever (11) rotatably mounted with respect to said housing (10) and a contact support (12), which also rotatably mounted with respect to said housing (10), carries at least one contact (13), a snap-action mechanism (14) capable of causing the automatic pivoting of said contact support (12) between a closed position, for which it applies against a fixed contact (15) the contact (13) which it carries, hereinafter called mobile contact, and an open position for which it maintains this mobile contact (13) away from the fixed contact (15), said trigger mechanism abrupt (14) being under the control of a cam (25) which, coaxial with the control handle (11), is mounted freely rotatable relative to the latter, with, associated with said cam (25), on the one hand, a first pawl (26), hereinafter called movable pawl, which, rotatably mounted on the control handle (1 1), is able to cooperate with a first notch (28) of the cam (25), for driving it in one direction, and, on the other hand, a second pawl (30), said below fixed pawl, which, rotatably mounted relative to the housing (10), is capable of cooperating with a second notch (32) of the cam (25), for retaining the latter in the opposite direction to the previous one, characterized in that, the mechanism with abrupt release (14) comprising a slide (87) mounted movable in translation relative to the housing (10), said slide (87) meshes by a finger (88) with the cam (25), and said snap-action mechanism further comprises a hooking lever (89) which, rotatably mounted relative to the housing (10) has, on the one hand, a notch (90) by which it is capable of being hooked on a notch (91) of the contact support (12), for retaining the latter, and, on the other hand, a ramp (92) by which, for its pivoting, and thus the release of said contact support (12) , it interferes with c the path of a pin (93) integral with the slide (87), and elastic means of contact pressure (124) capable of acting in closing on the contact support (12). 2. Interrupteur électrique suivant la revendication 1, caractérisé en ce que le coulisseau (87) présente un doigt (96) par lequel il est apte à agir sur le contact mobile (13) pour l'entraînement en ouverture de celui-ci.2. Electric switch according to claim 1, characterized in that the slide (87) has a finger (96) by which it is able to act on the movable contact (13) for the drive in opening thereof. 3. Interrupteur électrique suivant l'une quelconque des revendications 1, 2, caractérisé en ce que les moyens élastiques de pression de contact (124) prennent appui sur le coulisseau (87).3. Electric switch according to any one of claims 1, 2, characterized in that the elastic contact pressure means (124) bear on the slide (87). 4. Interrupteur électrique suivant l'une quelconque des revendications 1 à 3, caractérisé en ce que, au coulisseau (87), sont en outre associés des moyens élastiques de rappel (97).4. Electric switch according to any one of claims 1 to 3, characterized in that, to the slide (87), are also associated elastic return means (97). 5. Interrupteur électrique suivant l'une quelconque des revendications 1 à 4, caractérisé en ce que, par un appendice (117), le support de contact (12) est apte à coopérer avec un bossage (42) du cliquet mobile (26), notamment en appui, pour la retenue en position de fermeture de la manette de commande (11).5. Electric switch according to any one of claims 1 to 4, characterized in that, by an appendage (117), the contact support (12) is able to cooperate with a boss (42) of the movable pawl (26) , in particular in support, for the retention in the closed position of the control handle (11). 6. Interrupteur électrique suivant l'une quelconque des revendications 1 à 5, caractérisé en ce que pour la sollicitation en pivotement du cliquet fixe (30) dans le sens pour lequel il est apte à venir en prise avec le cran (32) correspondant de la came (25) ladite came (25) présente une rampe (53) dont le trajet interfère avec un bras (54) dudit cliquet fixe (30).6. Electric switch according to any one of claims 1 to 5, characterized in that for the pivoting stress of the fixed pawl (30) in the direction for which it is able to engage with the notch (32) corresponding to the cam (25) said cam (25) has a ramp (53) whose path interferes with an arm (54) of said fixed pawl (30). 7. Interrupteur électrique suivant l'une quelconque des revendications 1 à 6, caractérisé en ce que, au cliquet fixe (30) sont associés des moyens élastiques de rappel (55) qui le sollicitent en pivotement dans le sens opposé à celui pour lequel il est apte à venir en prise avec le cran (32) correspondant de la came (25).7. Electric switch according to any one of claims 1 to 6, characterized in that, to the fixed pawl (30) are associated elastic return means (55) which bias it in pivoting in the opposite direction to that for which it is able to engage with the corresponding notch (32) of the cam (25). 8. Interrupteur électrique suivant l'une quelconque des revendications 1 à 7, caractérisé en ce que, au cliquet fixe (30) est associé un levier de verrouillage (62), qui monté rotatif par rapport au boîtier (10), est apte, par un becquet (63), à maintenir ledit cliquet fixe (30) en prise avec le cran (32) correspondant de la came (25).8. Electric switch according to any one of claims 1 to 7, characterized in that, with the fixed pawl (30) is associated a locking lever (62), which rotatably mounted relative to the housing (10), is suitable, by a spoiler (63), keeping said fixed pawl (30) in engagement with the corresponding notch (32) of the cam (25). 9. Interrupteur électrique suivant la revendication 8, caractérisé en ce que, au levier de verrouillage (62) est associé un levier de déverrouillage (73) qui, monté rotatif par rapport au boîtier (10), comporte, d'une part, un bossage (75), par lequel il interfère avec le trajet d'un bossage (76) que comporte pour lui la manette de commande (11), et, d'autre part, un ergot (77) par lequel il est apte à agir sur le levier de verrouillage (62).9. Electric switch according to claim 8, characterized in that, with the locking lever (62) is associated an unlocking lever (73) which, mounted rotatably relative to the housing (10), comprises, on the one hand, a boss (75), by which it interferes with the path of a boss (76) which comprises for it the control handle (11), and, on the other hand, a lug (77) by which it is able to act on the locking lever (62). 10. Interrupteur électrique suivant l'une quelconque des revendications 8, 9, caractérisé en ce que, s'agissant d'un interrupteur différentiel, c'est-à-dire d'un interrupteur comportant un relais (79) sensible à un courant différentiel, le percuteur (80) dudit relais sensible (79) est apte à agir sur le levier de verrouillage (62) par l'intermédiaire d'un levier de réarmement (81) monté rotatif par rapport au boîtier (10).10. Electric switch according to any one of claims 8, 9, characterized in that, being a differential switch, that is to say a switch comprising a relay (79) sensitive to a current differential, the striker (80) of said sensitive relay (79) is capable of acting on the locking lever (62) by means of a reset lever (81) rotatably mounted relative to the housing (10). 11. Interrupteur électrique suivant la revendication 10, caractérisé en ce que le levier de réarmement (81) comporte un bras rigide (82), par lequel il est apte à agir sur le percuteur (80) du relais sensible (79), et un bras élastiquement déformable (83), sur lequel porte le cliquet fixe (30).11. Electric switch according to claim 10, characterized in that the reset lever (81) comprises a rigid arm (82), by which it is able to act on the striker (80) of the sensitive relay (79), and a elastically deformable arm (83), on which the fixed pawl (30) bears. 12. Interrupteur électrique suivant l'une quelconque des revendications 1 à 11, caractérisé en ce que le cliquet mobile (26) et le cliquet fixe (30) sont disposés en positions globalement diamétralement opposées l'un par rapport à l'autre de part et d'autre de la came (25).12. Electric switch according to any one of claims 1 to 11, characterized in that the movable pawl (26) and the fixed pawl (30) are arranged in generally diametrically opposite positions relative to each other on the one hand and other of the cam (25). 13. Interrupteur électrique suivant l'une quelconque des revendications 1 à 12, caractérisé en ce que le cliquet mobile (26) et la manette de commande (11) ont en commun des moyens élastiques de rappel (43), qui, prenant appui sur le boîtier (10), sollicitent, conjointement, la manette de commande (11) en direction de sa position de fermeture, et le cliquet mobile (26) en direction de la came (25).13. Electric switch according to any one of claims 1 to 12, characterized in that the movable pawl (26) and the control handle (11) have in common elastic return means (43), which, bearing on the housing (10), jointly urge the control handle (11) towards its closed position, and the movable pawl (26) towards the cam (25). 14. Interrupteur électrique suivant l'une quelconque des revendications 1 à 13, caractérisé en ce que, par un bras (118), le support de contact (12) engrène avec un indicateur de position (120) monté rotatif par rapport au boîtier (10).14. Electric switch according to any one of claims 1 to 13, characterized in that, by an arm (118), the contact support (12) meshes with a position indicator (120) rotatably mounted relative to the housing ( 10). 15. Interrupteur électrique suivant l'une quelconque des revendications 1 à 14, caractérisé en ce que, au boîtier (10), sont associés deux flasques de support (20) portant l'ensemble des organes mobiles internes à ce boîtier (10).15. Electric switch according to any one of claims 1 to 14, characterized in that, to the housing (10), are associated two support flanges (20) carrying all of the internal movable members of this housing (10).
EP89400294A 1988-02-03 1989-02-02 Automatically opening electric switch, in particular a differential interrupter Withdrawn EP0327460A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8801242 1988-02-03
FR8801242A FR2626712B1 (en) 1988-02-03 1988-02-03 ELECTRICAL SWITCH WITH AUTOMATIC SWITCHING, IN PARTICULAR DIFFERENTIAL SWITCH

Publications (1)

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EP0327460A1 true EP0327460A1 (en) 1989-08-09

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EP89400294A Withdrawn EP0327460A1 (en) 1988-02-03 1989-02-02 Automatically opening electric switch, in particular a differential interrupter

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EP (1) EP0327460A1 (en)
FR (1) FR2626712B1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2686453A1 (en) * 1992-01-17 1993-07-23 Legrand Sa Differential switch
EP2485237A1 (en) * 2011-02-08 2012-08-08 Siemens Aktiengesellschaft Residual current protection switch
CN109755774A (en) * 2019-03-11 2019-05-14 北京铁道工程机电技术研究所股份有限公司 A kind of electric grounding device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB154022A (en) * 1919-09-19 1920-11-25 Crompton & Co Ltd Improvements in or relating to electric switches
GB233094A (en) * 1924-03-10 1925-05-07 Albert Browne Mudie Improvements in electric switches
DE656585C (en) * 1933-07-05 1938-02-09 Stotz Kontakt Gmbh Device for instantaneous activation of electrical circuit breakers
DE1210069B (en) * 1962-10-19 1966-02-03 Standard Elektrik Lorenz Ag Momentary switch for actuation through the dial cord of motorized transmitter search devices in television and radio equipment

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB154022A (en) * 1919-09-19 1920-11-25 Crompton & Co Ltd Improvements in or relating to electric switches
GB233094A (en) * 1924-03-10 1925-05-07 Albert Browne Mudie Improvements in electric switches
DE656585C (en) * 1933-07-05 1938-02-09 Stotz Kontakt Gmbh Device for instantaneous activation of electrical circuit breakers
DE1210069B (en) * 1962-10-19 1966-02-03 Standard Elektrik Lorenz Ag Momentary switch for actuation through the dial cord of motorized transmitter search devices in television and radio equipment

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2686453A1 (en) * 1992-01-17 1993-07-23 Legrand Sa Differential switch
EP2485237A1 (en) * 2011-02-08 2012-08-08 Siemens Aktiengesellschaft Residual current protection switch
CN109755774A (en) * 2019-03-11 2019-05-14 北京铁道工程机电技术研究所股份有限公司 A kind of electric grounding device

Also Published As

Publication number Publication date
FR2626712A1 (en) 1989-08-04
FR2626712B1 (en) 1995-06-23

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