EP0837526B1 - Automatic connnection terminal and an electrical device fitted with such a terminal - Google Patents

Automatic connnection terminal and an electrical device fitted with such a terminal Download PDF

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Publication number
EP0837526B1
EP0837526B1 EP97402410A EP97402410A EP0837526B1 EP 0837526 B1 EP0837526 B1 EP 0837526B1 EP 97402410 A EP97402410 A EP 97402410A EP 97402410 A EP97402410 A EP 97402410A EP 0837526 B1 EP0837526 B1 EP 0837526B1
Authority
EP
European Patent Office
Prior art keywords
contact element
connecting terminal
terminal according
mobile contact
entrainment
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP97402410A
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German (de)
French (fr)
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EP0837526A1 (en
Inventor
Marcel Daccord
Franck Pauzet
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
Legrand SNC
Original Assignee
Legrand SA
Legrand SNC
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Publication date
Application filed by Legrand SA, Legrand SNC filed Critical Legrand SA
Publication of EP0837526A1 publication Critical patent/EP0837526A1/en
Application granted granted Critical
Publication of EP0837526B1 publication Critical patent/EP0837526B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/28—Clamped connections, spring connections
    • H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
    • H01R4/4809—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar
    • H01R4/4828—Spring-activating arrangements mounted on or integrally formed with the spring housing
    • H01R4/48365—Spring-activating arrangements mounted on or integrally formed with the spring housing with integral release means

Definitions

  • connection terminals of the type used for example certain electrical appliances, and, in particular, certain electrical installation devices, such as switches, sockets or others, for connection to electrical conductors necessary for their service.
  • connection terminals which generally comprises in an insulating body, two contact elements, one at less is in conductive material, namely, on the one hand, a fixed contact element, which is relatively rigid, and which, between two opposite walls, forms at least one cable entry, and, on the other hand, a mobile contact element, which comprises, obliquely, between the two walls of the fixed contact element, an elastically deformable clamping strip, this strip clamp being pivotally mounted relative to one of the walls of the fixed contact element, hereinafter simply called convenience support wall, and extending freely in door to false towards the other of these walls, hereinafter called simple convenience wall clamping, approaching this clamping wall as it moves away from cable entry.
  • connection terminal For connecting, for example, a conductor electric, it suffices, in fact, to forcibly engage in the connection terminal the bare end of this conductor electric.
  • this actuator is simply mounted movable in translation, like a slide.
  • German patent No 36 37 316 it can also be mounted swivel, like a lever.
  • this actuator acts to this end. pushing day on the clamping plate of the element mobile contact, and, under the effect of the reaction force then developed by it, it is constantly in demand elastically towards its closed position.
  • this actuating member If, therefore, this actuating member is released, it systematically returns to the closed position, and likewise for the movable contact element.
  • the organ is not a lever, but a cam eccentric, and, to allow the disconnection of a wire, i.e. for the passage in the open position of the element of movable contact, it acts in thrust on this contact element mobile, which implies a deformation of it.
  • the present invention generally has for object a provision allowing on the contrary to avoid these disadvantages.
  • connection terminal of the kind comprising, in a body insulator, two contact elements of which at least one is in conductive material, namely, on the one hand, an element of fixed contact, which is relatively rigid, and which between two opposite walls, forms at least one cable entry, and, on the other hand, a movable contact element, which comprises, in oblique, between the two walls of the fixed contact element, an elastically deformable clamping strip, this strip clamp being pivotally mounted relative to one of the walls of the fixed contact element, here called support wall, and extending freely cantilevered towards the other of these walls, here called the clamping wall, approaching this clamping wall as it moves away from the cable entry, with, at the disposal of the user, being accessible from outside the insulating body, an organ actuator, which is mounted movable relative to the element fixed contact, between two positions, one closed, the other opening, and from which it results, when it is in open position, that the movable contact element is itself in an open position for which the
  • toggle transmission is meant here classic way, a mechanism which, by crossing elastic of a neutral point corresponding to the alignment momentary of three axes of articulation, blocks itself in a stable, but reversible position, by bracing, beyond of this alignment.
  • any connection, or disconnection, an electrical conductor is found advantageously facilitated, whether it is a driver electric with flexible multi-strand conductive core, or is an electrical conductor with a rigid conductive core or semi-rigid.
  • the actuator used is also able to act in pushing on the contact element mobile, for the passage of the latter from its open position to a closed position for which, in the absence of electrical conductor in cable entry, free end of its clamping lamella bears against the wall of tightening of the fixed contact element, and jointly the movable contact element is then able to hook onto the fixed contact element in this closed position, in so this closed position is also a stable position.
  • connection terminal constitutes thus advantageously a bistable, which, when its element of movable contact is in the closed position, ready advantageously to an implementation analogous to that of automatic connection terminals, therefore suitable for everything especially if the electrical conductor is a electrical conductor with rigid or semi-rigid conductive core, and which, when its movable contact element is in position opening, facilitates connection or disconnection of the electrical conductor, lending itself then particularly if this electrical conductor is a electrical conductor with flexible, multi-strand conductive core.
  • connection terminals 11 each specific to the connection of at least one electrical conductor 12, as shown schematically in broken lines in Figure 9.
  • connection terminals 11 Only one of these connection terminals 11 will be described in the following.
  • this connection terminal 11 comprises, in an insulating body 13, two contact elements 14, 15, which jointly form its active part 16, and of which at least one is of conductive material, namely, of a apart, a fixed contact element 14, which is relatively rigid, and which, between two opposite walls 17, 18, forms at minus a cable entry 19, for engaging at least one electrical conductor 12, and, on the other hand, an element of movable contact 15, which comprises, obliquely, between the two walls 17, 18 of the fixed contact element 14, a strip of elastically deformable clamping 20, this clamping strip 20 being pivotally mounted, according to the arrangements described in more detail later, relative to one of the walls 17, 18 of the fixed contact element 14, in this case its wall 17, said here for simple convenience, support wall, and extending freely cantilevered towards the other of these walls, in this case wall 18, said here for convenience clamping wall, approaching this clamping wall 18 as it moves away from the cable entry 19.
  • the insulating body 13 can be an integral part of the switch housing 10, or constitute a part which, separate from this case, is duly secured to it.
  • the fixed contact element 14 generally has a tubular configuration, with substantially cross section quadrangular, its support wall 17 and its clamping wall 18 being substantially parallel to each other and being connected to each other by side walls 21 which are attached to them substantially perpendicular.
  • the set comes in one piece with a single steel blank suitably cut and folded, and its maintenance in tubular configuration is for example secured by stapling, a tab 22 coming from a single from the support wall 17 being for example recessed for do this in a complementary cutout 23 provided for this purpose in the immediately adjacent side wall 21.
  • the element of fixed contact 14 form, side by side, two cable entries 19, and, in correspondence with them, the insulating body 13 has two holes 25.
  • the clamping wall 18 of this fixed contact element 14 forms, longitudinally, and parallel to each other, two channels 26, one per cable entry 19, for one better positioning of electrical conductors 12 likely to be engaged.
  • this clamping wall 18 has, longitudinally, at a distance from each other, in its area middle, between the channels 26, two recesses 28 in favor which pins 29, integral with the insulating body 13, in being in practice come from one piece of it, make projection in the interior volume of the fixed contact element 14, to serve as a wire guide for the electrical conductors 12.
  • the clamping strip 20 of the element contact block 15 is split longitudinally into two branches 30 by a slot 31 on at least part of its length from its free end 32, at the rate of one branch 30 by cable entry 19, for actions individual on the two electrical conductors 12 possibly present.
  • this clamping strip 20 forms a leaf spring.
  • connection terminal 11 comprises an actuating member 34, which, available to the user, being accessible from the outside of the insulating body 13 thanks to a recess 35 thereof, is mounted movable relative to the element of fixed contact 14, between two positions, one closing, FIG. 3, the other opening, FIG. 9, and from which it results, when in the open position, that the contact element mobile 15 is itself in an open position for which, as shown in Figure 9, the free end 32 of its clamping strip 20 is spaced from the wall of tightening 18 of the fixed contact element 14.
  • the actuating member 34 is associated with means blocking 36 able to keep it stable in position opening, so that the opening position of the element moving contact 15 is itself a stable position.
  • the member actuator 34 is pivotally mounted, in the manner of a lever, relative to the fixed contact element 14, around an axis of articulation A1, and the clamping strip 20 of the element of movable contact 15 is itself pivotally mounted relative to to the fixed contact element 14, around an axis of articulation A2 separate from the articulation axis A1 of the organ actuation 34.
  • the articulation axes A1, A2 are shown diagrammatically by their trace in FIGS. 3, 8A, 8B, 8C and 9.
  • the organ actuator 34 is pivotally mounted on the insulating body 13, above the fixed contact element 14, by pins 37 which materialize the axis of articulation A1.
  • this body actuator 34 is able to act in traction on the element of movable contact 15 for the passage of the latter into position opening hours, as described in more detail subsequently, and the blocking means 36 which are attached to it associates include, in the embodiment shown, a toggle transmission 38 which intervenes between it and this movable contact element 15.
  • this toggle transmission 38 comprises, on the one hand, a zipper 39, which, according to arrangements described in more detail subsequently, is coupled to the movable contact element 15, and, on the other hand, a drive arm 40, which is integral with the actuating member 34, and which, in its path, interferes with the drawbar 39 at a point A3 thereof distinct both from the articulation axis A1 of the organ actuation 34 that of the hinge axis A2 of the lamella clamping 20 of the movable contact element 15, with, between the pull tab 39 and the drive arm 40, means 41 suitable for allowing the training of this zipper 39 by this drive arm 40.
  • these means attachment 41 comprise, on the pull tab 39, a return 42, in the shape of a butt, and, for cooperation with this return 42, the end 43 of the drive arm 40 is generally rounded.
  • the element of movable contact 15 comprises a drive strip 45, which continuously extends its clamping strip 20, making with this one an acute bend 46, and, by this bend 46, said here by simple convenience elbow joint, contact element mobile 15 bypasses the bearing wall 17 of the contact element fixed 14, being pivotally mounted by a knife type joint on this support wall 17.
  • the movable contact element 15 is engaged on that of the edges of the bearing wall 17 of the element of fixed contact 14 which is on the side of the cable entries 18.
  • the hinge axis A2 of the clamping strip 20 of the movable contact element 15 is therefore materialized by this slice.
  • the movable contact element 15 has a recess, which is in fact formed by an extension of the slot 31 separating in two branches 30 its clamping strip 20, and, by this obviously, it is engaged with a lug 47 which, extending locally the support wall 17 of the fixed contact element 14, protrudes from the relevant section thereof.
  • the angle C1 made by the articulation elbow at rest 46 of the movable contact element 15, FIG. 9, is preferably between 20 ° and 80 °.
  • the pull tab 39 of the transmission toggle switch 38 provided according to the invention is, in the form of embodiment shown, coupled to the drive strip 45 of this movable contact element 15.
  • this drive plate 45 comprises, successively, counting of the articulation elbow 46, a first section 49 and a second section 50, which bends between them 51, and the zipper 39 is coupled to the second section 50, that is to say to the one farthest from the articulation elbow 46.
  • the second section 50 of the drive strip 45 extends on the same side of the first section 49 as the clamping strip 20, and, by the elbow 51 which these two sections make between them 49, 50, the movable contact element 15 bypasses, at a distance, that of the edges of the bearing wall 17 of the element of fixed contact 14 which is on the side opposite the cable entries 19.
  • the elbow 51 which between them the first section 49 and the second section 50 of the strip drive 45 of the movable contact element 15 is a acute elbow.
  • the angle C2 that this elbow 51 makes at rest, FIG. 8B, is preferably between 70 ° and 90 °.
  • the pull tab 39 of the toggle transmission 38 extends generally obliquely to the second section 50 of the drive plate 45 of the contact element mobile 15, approaching the first section 49 of this drive plate 45 as it moves away of the second section 50.
  • the angle C3 made by this pull tab 39 at rest with the second section 50 to which it is coupled, FIG. 8A, is preferably between 5 ° and 35 °.
  • the pull tab 39 crosses the first section 49 of the drive strip 45, by means of a recess 52 of this which, in practice, also extends continuously over the second section 50.
  • the zipper 39 is in one piece with the movable contact element 15, by forming a single piece with it, and the recess 52 which it crosses is a puncture by virtue of which she was trained.
  • the pull tab 39 of the transmission to knee brace 38 therefore extends substantially along the zone center of the movable contact element 15.
  • the end free of the second section 50 of the drive strip 45 is slightly folded towards the clamping strip 20 beyond the root of the zipper 39.
  • the pull tab 39 is elastically deformable.
  • the assembly which the movable contact element 15 forms with this zipper 39 can for example come from a strip in spring steel suitably cut and folded.
  • the arm drive 40 of the toggle link transmission 38 provided according to the invention is in one piece with the organ 34, forming with it one and the same part, and, on the other side of its axis of articulation A1 by relative to this drive arm 40, the actuating member 34 has an actuating arm 53, which, projecting outside of the insulating body 13 through the recess 35 of this constitutes the part of this actuator 34 which is accessible to the user.
  • the arm actuator 53 and the drive arm 40 of the member actuation 34 generally form an elbow 54 between them.
  • the angle C4 of this elbow 54 is preferably between 45 ° and 90 °, figure 9.
  • the articulation axis A1 of the actuating member 34 extends between the hinge axis A2 of the movable contact element 15 and the pull tab 39 of the toggle transmission 38.
  • the member 34 is also able to act on thrust on the movable contact element 15, for the passage thereof its open position to a closed position for which the free end 32 of its clamping strip 20 is close to the clamping wall 18 of the contact element fixed 14, this free end 32 then being in abutment, either, under slight elastic stress, against this wall of tightening 18 when, as shown in FIG. 3, no electrical conductor 12 is present in one or the other cable entries 19, i.e. under elastic stress more accentuated, against the bare end of a conductor electric 12 when such an electric conductor 12 is present in either of these cable entries 19.
  • the member actuator 34 for its action in thrust on the movable contact element 15, the member actuator 34 comprises at least one cheek 55, which extends perpendicular to its axis of articulation A1, and the path interferes with the drive plate 45 of the element mobile contact 15.
  • the actuating member 34 comprises two cheeks 55, which, arranged on either side of its drive arm 40, in extending slightly beyond it, connect this arm 40 to the actuating arm 53, thereby ensuring the stiffening of the assembly, and which frame the zipper 39 of the toggle drive 38.
  • the actuating arm 53 meanwhile, extends over the entire width of the actuating member 34, from one to the other of the outer surfaces of the cheeks 55.
  • the movable contact element 15 is suitable for hooking onto the fixed contact element 14 in closed position, so that its closed position is also a stable position.
  • the pull tab 39 of the toggle joint transmission 38 has at least one shoulder 56 by which it can engage on a shoulder 57 of the fixed contact element 14.
  • the pull tab 39 presents, successively, from the second section 50 of the drive strip 45 of the movable contact element 15 a larger section width 39 'and a smaller section 39 ", and, at the root of the latter, it comprises, transversely, two shoulders 56, each arranged respectively on the side and on the other side of this section of smaller width 39 ".
  • the fixed contact element 14 has, in correspondence, two shoulders 57, thanks to a notch 58 affecting, in its median zone, that of edges of its support wall 17 which is opposite to the entrances of cable 19.
  • both the fixed contact element 14 as the movable contact element 15 are of conductive material, and, the electrical appliance 10 concerned being supposed to be a switch, the element of fixed contact 14 locally carries a contact grain 60.
  • this grain of contact 60 is attached to a contact wall 61 which, from the opposite side to the cable entries 19, forms a right angle for an extension 62 of one of the side walls 21 of the fixed contact element 14, FIGS. 5 and 6.
  • the fixed contact element 14 also comprises, beyond the edge of its clamping wall 18 which is on the side opposite the cable entries 19, to limit engagement therein electrical conductors 12, a barrier wall 63.
  • this stop wall 63 comes from a single holding on the other side walls 21 of this element of fixed contact 14, also forming a square return for this one.
  • This stop wall 63 extends transversely between the clamping wall 18 of the fixed contact element 14 and the second section 50 of the drive strip 45 of the movable contact element 15.
  • the contact wall 61 extends beyond this second section 50.
  • the branch 30 corresponding to the clamping strip 20 of the element movable contact 15 is driven elastically, by pivoting around the axis of articulation A2, as shown schematically in lines interrupted in FIG. 3, which leads, as sought, when connecting this electrical conductor 12 to the terminal connection 11.
  • connection terminal 11 when the movable contact element 15 is in closed position, the next connection terminal 11 the invention operates as a connection terminal automatic.
  • the actuator 34 with him, by his drive arm 40, the pull tab 39, by means of an elastically temporary deformation of it, and, by this zipper 39, it therefore drives the element mobile contact 15, which, as shown by arrow F2 in Figures 8B and 8C, then pivots around its axis of articulation A2.
  • the clamping strip 20 of the contact element mobile 15 then gradually moves away from the clamping wall 18 of the fixed contact element 14.
  • the member actuation 34 is subjected to a torque which tends to keep stably in the open position, this open position being reached in practice when, at term of its tilting, it comes to bear against a stop, not visible in the figures, provided for this purpose on the body insulator 13.
  • the actuator 34 thus being in position stable opening, the same applies to the contact element mobile 15, and therefore for its clamping strip 20, which remains therefore at a distance from the clamping wall 18 of the element of fixed contact 14.
  • the cheeks 55 of the actuating member 34 come to bear on the first section 49 of the strip drive 45 of the movable contact element 15, which gradually brings it back to its original position of closure, however that, on the one hand, contacting the electrical conductor 12, the clamping strip 20 of this movable contact element 15 progressively submits this electrical conductor 12 at sufficient effort to ensure its holding in the connection terminal 11, and that, on the other hand, by returning to its elastic configuration at the end of the movement corresponding pivot, the pull tab 39 of the transmission knee switch 38 comes by itself to take by its shoulders 56 on the shoulders 57 of the contact element fixed 14, again ensuring stable holding in position closing of the assembly.
  • the contact surfaces between the end 43 of the drive arm 40 of the actuating member 34 and the pull tab 39 of the toggle link 38 are cylindrical surfaces, so that the corresponding contact is done along an A3 straight line rather than along a point A3.
  • this point A3 or this straight line A3 moves to the as the actuating member 34 tilts.
  • connection terminal 11 the invention has two cable entries 19 for transplant to its level if desired.
  • the actuator could just as easily be mounted movable in translation, provided, on the one hand, that, from its position closing in its open position, it drags with it the movable contact element, and, secondly, that it is associated with locking means capable of holding it so stable in closed position.
  • only one of the contact elements could be of conductive material.
  • connection terminal can just as well intervene in isolation, like a connector, for establishing a connection between two electrical conductors.

Description

La présente invention concerne d'une manière générale les bornes de connexion du type de celles équipant par exemple certains appareils électriques, et, notamment, certains appareils électriques d'installation, tels qu'interrupteurs, prises de courant ou autres, pour leur raccordement aux conducteurs électriques nécessaires à leur desserte.The present invention relates generally connection terminals of the type used for example certain electrical appliances, and, in particular, certain electrical installation devices, such as switches, sockets or others, for connection to electrical conductors necessary for their service.

Elle vise plus particulièrement celles de ces bornes de connexion, communément dites "automatiques" ou à connexion "rapide", dans lesquelles le serrage de l'extrémité, préalablement dénudée, d'un conducteur électrique n'implique pas la mise en oeuvre d'une quelconque vis.It relates more particularly to those of these terminals connection, commonly called "automatic" or connection "fast", in which the tightening of the end, previously stripped of an electrical conductor does not imply not the implementation of any screw.

Plus particulièrement, encore, la présente invention vise celle de ces bornes de connexion qui comporte, en général dans un corps isolant, deux éléments de contact dont l'un au moins est en matériau conducteur, à savoir, d'une part, un élément de contact fixe, qui est relativement rigide, et qui, entre deux parois opposées, forme au moins une entrée de câble, et, d'autre part, un élément de contact mobile, qui comporte, en oblique, entre les deux parois de l'élément de contact fixe, une lamelle de serrage élastiquement déformable, cette lamelle de serrage étant montée pivotante par rapport à l'une des parois de l'élément de contact fixe, dite ci-après par simple commodité paroi d'appui, et s'étendant librement en porte à faux en direction de l'autre de ces parois, dite ci-après par simple commodité paroi de serrage, en se rapprochant de cette paroi de serrage au fur et à mesure qu'elle s'éloigne de l'entrée de câble.More particularly, still, the present invention targets that of these connection terminals which generally comprises in an insulating body, two contact elements, one at less is in conductive material, namely, on the one hand, a fixed contact element, which is relatively rigid, and which, between two opposite walls, forms at least one cable entry, and, on the other hand, a mobile contact element, which comprises, obliquely, between the two walls of the fixed contact element, an elastically deformable clamping strip, this strip clamp being pivotally mounted relative to one of the walls of the fixed contact element, hereinafter simply called convenience support wall, and extending freely in door to false towards the other of these walls, hereinafter called simple convenience wall clamping, approaching this clamping wall as it moves away from cable entry.

Par rapport à une borne de connexion à vis classique, une telle borne de connexion automatique permet un avantageux gain de temps.Compared to a conventional screw connection terminal, such an automatic connection terminal allows an advantageous time saving.

Pour le branchement, par exemple, d'un conducteur électrique, il suffit, en effet, d'engager à force dans la borne de connexion l'extrémité, dénudée, de ce conducteur électrique.For connecting, for example, a conductor electric, it suffices, in fact, to forcibly engage in the connection terminal the bare end of this conductor electric.

Refoulant élastiquement la lamelle de serrage de l'élément de contact mobile, cette extrémité dénudée vient alors d'elle-même se prendre entre l'extrémité libre de la lamelle de serrage et la paroi de serrage de l'élément de contact fixe, et, par arc-boutement entre cette lamelle de serrage et cette paroi de serrage, elle se trouve fermement arrimée à l'ensemble.Elastically pushing back the clamping strip the movable contact element, this stripped end comes then of itself to be caught between the free end of the clamping plate and the clamping wall of the element fixed contact, and, by bracing between this strip of clamping and this clamping wall it sits firmly tied to the whole.

Si, pour un conducteur électrique à âme conductrice rigide ou semi-rigide, un tel branchement ne soulève aucune difficulté, il n'en est pas de même pour un conducteur électrique à âme conductrice souple multibrin, eu égard au manque de rigidité et de cohérence d'une telle âme conductrice et à la relative fragilité de celle-ci.If, for an electrical conductor with a conductive core rigid or semi-rigid, such a connection does not raise any difficulty, it is not the same for a driver electric with flexible multi-strand conductive core, having regard to lack of rigidity and consistency of such a conductive core and the relative fragility of it.

En outre, dans l'un et l'autre cas, un éventuel débranchement du conducteur électrique est lui-même malaisé et incertain.In addition, in either case, a possible disconnection of the electrical conductor is itself difficult and uncertain.

Pour surmonter ces difficultés, il a déjà été proposé de mettre à la disposition de l'usager un organe d'actionnement, qui, accessible de l'extérieur du corps isolant, est monté mobile par rapport à l'élément de contact fixe entre deux positions, l'une de fermeture, l'autre d'ouverture, et dont il résulte, lorsqu'il est en position d'ouverture, que l'élément de contact mobile est lui-même dans une position d'ouverture pour laquelle l'extrémité libre de sa lamelle de serrage est écartée de la paroi de serrage de l'élément de contact fixe.To overcome these difficulties, it has already been proposed to make available to the user an organ actuation, which, accessible from outside the body insulator, is mounted movable relative to the contact element fixed between two positions, one closed, the other opening, and from which it results, when in position opening, that the movable contact element is itself in an open position for which the free end of its clamping strip is spaced from the clamping wall of the fixed contact element.

Le plus souvent, cet organe d'actionnement est simplement monté mobile en translation, à la manière d'un coulisseau.Most often, this actuator is simply mounted movable in translation, like a slide.

Mais, tel que décrit par exemple dans la demande de brevet allemand No 36 37 316, il peut également être monté pivotant, à la manière d'un levier.But, as described for example in the request for German patent No 36 37 316, it can also be mounted swivel, like a lever.

Dans tous les cas, cet organe d'actionnement agit à ce jour en poussée sur la lamelle de serrage de l'élément de contact mobile, et, sous l'effet de l'effort de réaction alors développé par celle-ci, il est en permanence sollicité élastiquement en direction de sa position de fermeture.In all cases, this actuator acts to this end. pushing day on the clamping plate of the element mobile contact, and, under the effect of the reaction force then developed by it, it is constantly in demand elastically towards its closed position.

Si, donc, cet organe d'actionnement est relâché, il revient systématiquement en position de fermeture, et il en est de même pour l'élément de contact mobile. If, therefore, this actuating member is released, it systematically returns to the closed position, and likewise for the movable contact element.

Il en résulte que, pour le branchement, ou le débranchement, d'un conducteur électrique, il faut, d'une main, agir sur l'organe d'actionnement, et, de l'autre, agir sur le conducteur électrique, ce qui complique les opérations et les rend relativement malaisées.It follows that, for the connection, or the disconnection, of an electrical conductor, it is necessary, with one hand, act on the actuator, and, on the other, act on the electrical conductor, which complicates operations and makes it relatively awkward.

Dans le brevet britannique No 1 368 577, l'organe d'actionnement n'est pas un levier, mais une came à excentrique, et, pour permettre la déconnexion d'un fil, c'est-à-dire pour le passage en position d'ouverture de l'élément de contact mobile, il agit en poussée sur cet élément de contact mobile, ce qui implique une déformation de celui-ci.In British Patent No. 1,368,577, the organ is not a lever, but a cam eccentric, and, to allow the disconnection of a wire, i.e. for the passage in the open position of the element of movable contact, it acts in thrust on this contact element mobile, which implies a deformation of it.

Dans le brevet américain No 4 759 726, le levier constituant l'organe d'actionnement intervient également à la manière d'une came à excentrique, et, pour la connexion d'un fil, c'est-à-dire pour le passage en position de fermeture de l'élément de contact mobile, il agit en poussée sur celui-ci.In U.S. Patent No. 4,759,726, the lever constituting the actuator also intervenes in the way of an eccentric cam, and, for the connection of a wire, i.e. for the passage into the closed position of the movable contact element, it acts in thrust thereon.

En outre, lorsque l'élément de contact mobile est ainsi en position de fermeture, il n'est normalement pas possible d'introduire à force un quelconque fil dans la borne de connexion correspondante, au contraire de ce que permet une borne de connexion de type automatique.Furthermore, when the movable contact element is so in the closed position it is normally not possible to force any wire into the terminal corresponding connection, unlike what a automatic type connection terminal.

La présente invention a d'une manière générale pour objet une disposition permettant au contraire d'éviter ces inconvénients.The present invention generally has for object a provision allowing on the contrary to avoid these disadvantages.

De manière plus précise, elle a tout d'abord pour objet une borne de connexion du genre comportant, dans un corps isolant, deux éléments de contact dont l'un, au moins, est en matériau conducteur, à savoir, d'une part, un élément de contact fixe, qui est relativement rigide, et qui, entre deux parois opposées, forme au moins une entrée de câble, et, d'autre part, un élément de contact mobile, qui comporte, en oblique, entre les deux parois de l'élément de contact fixe, une lamelle de serrage élastiquement déformable, cette lamelle de serrage étant montée pivotante par rapport à l'une des parois de l'élément de contact fixe, dite ici paroi d'appui, et s'étendant librement en porte à faux en direction de l'autre de ces parois, dite ici paroi de serrage, en se rapprochant de cette paroi de serrage au fur et à mesure qu'elle s'éloigne de l'entrée de câble, avec, à la disposition de l'usager, en étant accessible de l'extérieur du corps isolant, un organe d'actionnement, qui est monté mobile par rapport à l'élément de contact fixe, entre deux positions, l'une de fermeture, l'autre d'ouverture, et dont il résulte, lorsqu'il est en position d'ouverture, que l'élément de contact mobile est lui-même dans une position d'ouverture pour laquelle l'extrémité libre de sa lamelle de serrage est écartée de la paroi de serrage de l'élément de contact fixe, et avec, associés à l'organe d'actionnement, des moyens de blocage aptes à son maintien stable en position d'ouverture, en sorte que la position d'ouverture de l'élément de contact mobile est elle-même une position stable, cette borne de connexion étant d'une manière générale caractérisée en ce que, l'organe d'actionnement étant monté pivotant, à la manière d'un levier, et la lamelle de serrage de l'élément de contact mobile étant elle-même montée pivotante, autour d'un axe d'articulation distinct de celui de l'organe d'actionnement, cet organe d'actionnement est apte à agir en traction sur l'élément de contact mobile pour le passage de celui-ci en position d'ouverture, et les moyens de blocage qui lui sont associés comportent une transmission à genouillère qui intervient entre lui et l'élément de contact mobile ; elle a encore pour objet tout appareil électrique équipé d'au moins une telle borne de connexion.More precisely, it has first of all for object a connection terminal of the kind comprising, in a body insulator, two contact elements of which at least one is in conductive material, namely, on the one hand, an element of fixed contact, which is relatively rigid, and which between two opposite walls, forms at least one cable entry, and, on the other hand, a movable contact element, which comprises, in oblique, between the two walls of the fixed contact element, an elastically deformable clamping strip, this strip clamp being pivotally mounted relative to one of the walls of the fixed contact element, here called support wall, and extending freely cantilevered towards the other of these walls, here called the clamping wall, approaching this clamping wall as it moves away from the cable entry, with, at the disposal of the user, being accessible from outside the insulating body, an organ actuator, which is mounted movable relative to the element fixed contact, between two positions, one closed, the other opening, and from which it results, when it is in open position, that the movable contact element is itself in an open position for which the end free of its clamping strip is spaced from the wall of tightening of the fixed contact element, and with, associated with the actuating member, blocking means suitable for its stable hold in the open position, so that the opening position of the movable contact element is itself a stable position, this connection terminal being of a generally characterized in that, the organ actuator being pivotally mounted, in the manner of a lever, and the clamping strip of the movable contact element being itself pivotally mounted, around an axis of articulation distinct from that of the actuating organ, this organ actuation is able to act in traction on the element of movable contact for moving it into position opening, and the blocking means associated therewith have a toggle transmission which takes place between him and the movable contact element; it still has for object any electrical appliance fitted with at least one such terminal connection.

Par transmission à genouillère, on entend, ici, de manière classique, un mécanisme qui, par franchissement élastique d'un point mort correspondant à l'alignement momentané de trois axes d'articulation, se bloque de lui-même en position stable, mais réversible, par arc-boutement, au-delà de cet alignement.By toggle transmission is meant here classic way, a mechanism which, by crossing elastic of a neutral point corresponding to the alignment momentary of three axes of articulation, blocks itself in a stable, but reversible position, by bracing, beyond of this alignment.

Quoi qu'il en soit, du fait d'un maintien possible en position d'ouverture de l'élément de contact mobile grâce aux moyens de blocage prévus suivant l'invention, tout branchement, ou débranchement, d'un conducteur électrique se trouve avantageusement facilité, qu'il s'agisse d'un conducteur électrique à âme conductrice souple multibrin, ou qu'il s'agisse d'un conducteur électrique à âme conductrice rigide ou semi-rigide.Anyway, because of a possible maintenance in open position of the movable contact element thanks to the blocking means provided according to the invention, any connection, or disconnection, an electrical conductor is found advantageously facilitated, whether it is a driver electric with flexible multi-strand conductive core, or is an electrical conductor with a rigid conductive core or semi-rigid.

Mais, préférentiellement, suivant un développement de l'invention, l'organe d'actionnement mis en oeuvre est également apte à agir en poussée sur l'élément de contact mobile, pour le passage de celui-ci de sa position d'ouverture à une position de fermeture pour laquelle, en l'absence de conducteur électrique dans l'entrée de câble, l'extrémité libre de sa lamelle de serrage est en appui contre la paroi de serrage de l'élément de contact fixe, et, conjointement, l'élément de contact mobile est alors apte à se crocheter sur l'élément de contact fixe dans cette position de fermeture, en sorte que cette position de fermeture est elle aussi une position stable.But, preferably, following a development of the invention, the actuator used is also able to act in pushing on the contact element mobile, for the passage of the latter from its open position to a closed position for which, in the absence of electrical conductor in cable entry, free end of its clamping lamella bears against the wall of tightening of the fixed contact element, and jointly the movable contact element is then able to hook onto the fixed contact element in this closed position, in so this closed position is also a stable position.

La borne de connexion suivant l'invention constitue ainsi avantageusement un bistable, qui, lorsque son élément de contact mobile est en position de fermeture, se prête avantageusement à une mise en oeuvre analogue à celle des bornes de connexion automatiques, en convenant donc tout particulièrement au cas où le conducteur électrique est un conducteur électrique à âme conductrice rigide ou semi-rigide, et qui, lorsque son élément de contact mobile est en position d'ouverture, facilite le branchement ou le débranchement du conducteur électrique, en se prêtant alors tout particulièrement au cas où ce conducteur électrique est un conducteur électrique à âme conductrice souple multibrin.The connection terminal according to the invention constitutes thus advantageously a bistable, which, when its element of movable contact is in the closed position, ready advantageously to an implementation analogous to that of automatic connection terminals, therefore suitable for everything especially if the electrical conductor is a electrical conductor with rigid or semi-rigid conductive core, and which, when its movable contact element is in position opening, facilitates connection or disconnection of the electrical conductor, lending itself then particularly if this electrical conductor is a electrical conductor with flexible, multi-strand conductive core.

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 une vue partielle en perspective d'un appareil électrique équipé d'une borne de connexion suivant l'invention ;
  • la figure 2 en est une vue partielle en élévation, suivant la flèche II de la figure 1 ;
  • la figure 3 en est, à échelle supérieure, une vue partielle en coupe transversale, suivant la ligne brisée III-III de la figure 2 ;
  • la figure 4 est, sensiblement à la même échelle que la figure 3, une vue en perspective de la seule partie active de la borne de connexion suivant l'invention, représentée isolément, et vue de l'avant, pour la position de fermeture de son élément de contact mobile ;
  • la figure 5 est une autre vue en perspective, vue de l'arrière, de cette partie active ;
  • la figure 6 reprend, à échelle supérieure, le détail de la figure 5 repéré par un encart VI sur cette figure 5 ;
  • la figure 7 est, avec un arrachement local, une vue en perspective analogue à celle de la figure 4, pour la position d'ouverture de l'élément de contact mobile ;
  • les figures 8A, 8B, 8C sont des vues en coupe transversale qui, déduites de celle de la figure 3, illustrent diverses phases successives du passage de l'élément de contact mobile de la borne de connexion suivant l'invention de sa position de fermeture à sa position d'ouverture ;
  • la figure 9 est une vue en coupe transversale qui, analogue aux précédentes, correspond à la position d'ouverture de cet élément de contact mobile.
    • 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 a partial perspective view of an electrical device equipped with a connection terminal according to the invention;
  • Figure 2 is a partial elevational view, along arrow II of Figure 1;
  • Figure 3 is, on a larger scale, a partial view in cross section, along the broken line III-III of Figure 2;
  • Figure 4 is, substantially on the same scale as Figure 3, a perspective view of the only active part of the connection terminal according to the invention, shown in isolation, and viewed from the front, for the closed position of its movable contact element;
  • Figure 5 is another perspective view, viewed from the rear, of this active part;
  • Figure 6 shows, on a larger scale, the detail of Figure 5 identified by an insert VI in this Figure 5;
  • Figure 7 is, with a local cutaway, a perspective view similar to that of Figure 4, for the open position of the movable contact element;
  • Figures 8A, 8B, 8C are cross-sectional views which, deduced from that of Figure 3, illustrate various successive phases of the passage of the movable contact element of the connection terminal according to the invention from its closed position in its open position;
  • Figure 9 is a cross-sectional view which, similar to the previous ones, corresponds to the open position of this movable contact element.

    • Ces figures illustrent, à titre d'exemple, l'application de l'invention à un interrupteur 10.These figures illustrate, by way of example, application of the invention to a switch 10.

    Mais, cet interrupteur 10 ne relevant pas, par lui-même, de la présente invention, il n'a été que partiellement représenté sur les figures, et il ne sera pas décrit dans tous ses détails ici.But, this switch 10 does not fall, by itself, of the present invention, it was only partially shown in the figures, and will not be described in all its details here.

    Seuls en seront décrits les éléments nécessaires à la compréhension de l'invention.Only the elements necessary for the understanding of the invention.

    Il suffira d'indiquer, à ce sujet, qu'il est équipé de plusieurs bornes de connexion 11, propres chacune au branchement d'au moins un conducteur électrique 12, comme schématisé en traits interrompus sur la figure 9.It will suffice to indicate, on this subject, that it is equipped with several connection terminals 11, each specific to the connection of at least one electrical conductor 12, as shown schematically in broken lines in Figure 9.

    Seule l'une de ces bornes de connexion 11 sera décrite dans ce qui suit. Only one of these connection terminals 11 will be described in the following.

    De manière connue en soi, cette borne de connexion 11 comporte, dans un corps isolant 13, deux éléments de contact 14, 15, qui forment conjointement sa partie active 16, et dont l'un, au moins, est en matériau conducteur, à savoir, d'une part, un élément de contact fixe 14, qui est relativement rigide, et qui, entre deux parois 17, 18 opposées, forme au moins une entrée de câble 19, pour l'engagement d'au moins un conducteur électrique 12, et, d'autre part, un élément de contact mobile 15, qui comporte, en oblique, entre les deux parois 17, 18 de l'élément de contact fixe 14, une lamelle de serrage 20 élastiquement déformable, cette lamelle de serrage 20 étant montée pivotante, suivant des dispositions décrites plus en détail ultérieurement, par rapport à l'une des parois 17, 18 de l'élément de contact fixe 14, en l'espèce sa paroi 17, dite ici par simple commodité paroi d'appui, et s'étendant librement en porte à faux en direction de l'autre de ces parois, en l'espèce la paroi 18, dite ici par simple commodité paroi de serrage, en se rapprochant de cette paroi de serrage 18 au fur et à mesure qu'elle s'éloigne de l'entrée de câble 19.In a manner known per se, this connection terminal 11 comprises, in an insulating body 13, two contact elements 14, 15, which jointly form its active part 16, and of which at least one is of conductive material, namely, of a apart, a fixed contact element 14, which is relatively rigid, and which, between two opposite walls 17, 18, forms at minus a cable entry 19, for engaging at least one electrical conductor 12, and, on the other hand, an element of movable contact 15, which comprises, obliquely, between the two walls 17, 18 of the fixed contact element 14, a strip of elastically deformable clamping 20, this clamping strip 20 being pivotally mounted, according to the arrangements described in more detail later, relative to one of the walls 17, 18 of the fixed contact element 14, in this case its wall 17, said here for simple convenience, support wall, and extending freely cantilevered towards the other of these walls, in this case wall 18, said here for convenience clamping wall, approaching this clamping wall 18 as it moves away from the cable entry 19.

    Le corps isolant 13 peut faire partie intégrante du boítier de l'interrupteur 10, ou constituer une pièce qui, distincte de ce boítier, est dûment solidarisée à celui-ci.The insulating body 13 can be an integral part of the switch housing 10, or constitute a part which, separate from this case, is duly secured to it.

    Quoi qu'il en soit, dans la forme de réalisation représentée, l'élément de contact fixe 14 a globalement une configuration tubulaire, à section transversale sensiblement quadrangulaire, sa paroi d'appui 17 et sa paroi de serrage 18 étant sensiblement parallèles l'une à l'autre et étant reliées l'une à l'autre par des paroi latérales 21 qui leur sont sensiblement perpendiculaires.Anyway, in the embodiment shown, the fixed contact element 14 generally has a tubular configuration, with substantially cross section quadrangular, its support wall 17 and its clamping wall 18 being substantially parallel to each other and being connected to each other by side walls 21 which are attached to them substantially perpendicular.

    Par exemple, et tel que représenté, l'ensemble vient d'un seul tenant d'un seul et même flan en acier convenablement découpé et plié, et son maintien en configuration tubulaire est par exemple assuré par agrafage, une patte 22 venue d'un seul tenant de la paroi d'appui 17 étant par exemple encastrée pour ce faire dans une découpe complémentaire 23 prévue à cet effet dans la paroi latérale 21 immédiatement adjacente. For example, and as shown, the set comes in one piece with a single steel blank suitably cut and folded, and its maintenance in tubular configuration is for example secured by stapling, a tab 22 coming from a single from the support wall 17 being for example recessed for do this in a complementary cutout 23 provided for this purpose in the immediately adjacent side wall 21.

    Des languettes d'encliquetage 24, venues par crevé des parois latérales 21, assurent le maintien de l'élément de contact fixe 14, et donc l'ensemble de la partie active 16, dans le corps isolant 13.Snap-in tabs 24, punctured by side walls 21, maintain the element of fixed contact 14, and therefore the entire active part 16, in the insulating body 13.

    Dans la forme de réalisation représentée, l'élément de contact fixe 14 forme, côte à côte, deux entrées de câble 19, et, en correspondance avec celles-ci, le corps isolant 13 présente deux trous 25.In the embodiment shown, the element of fixed contact 14 form, side by side, two cable entries 19, and, in correspondence with them, the insulating body 13 has two holes 25.

    Plus précisément, dans cette forme de réalisation, la paroi de serrage 18 de cet élément de contact fixe 14 forme, longitudinalement, et parallèlement l'une à l'autre, deux rigoles 26, à raison d'une par entrée de câble 19, pour un meilleur positionnement des conducteurs électriques 12 susceptibles d'y être engagés.More specifically, in this embodiment, the clamping wall 18 of this fixed contact element 14 forms, longitudinally, and parallel to each other, two channels 26, one per cable entry 19, for one better positioning of electrical conductors 12 likely to be engaged.

    Dans le même but, cette paroi de serrage 18 présente, longitudinalement, à distance l'un de l'autre, dans sa zone médiane, entre les rigoles 26, deux évidements 28 à la faveur desquels des ergots 29, solidaires du corps isolant 13, en étant en pratique venus d'un seul tenant de celui-ci, font saillie dans le volume intérieur de l'élément de contact fixe 14, pour servir de guide fil aux conducteurs électriques 12.For the same purpose, this clamping wall 18 has, longitudinally, at a distance from each other, in its area middle, between the channels 26, two recesses 28 in favor which pins 29, integral with the insulating body 13, in being in practice come from one piece of it, make projection in the interior volume of the fixed contact element 14, to serve as a wire guide for the electrical conductors 12.

    Corollairement, la lamelle de serrage 20 de l'élément de contact mobile 15 est fractionnée longitudinalement en deux branches 30 par une fente 31 sur une partie au moins de sa longueur à compter de son extrémité libre 32, à raison d'une branche 30 par entrée de câble 19, pour des actions individuelles sur les deux conducteurs électriques 12 éventuellement présents.As a corollary, the clamping strip 20 of the element contact block 15 is split longitudinally into two branches 30 by a slot 31 on at least part of its length from its free end 32, at the rate of one branch 30 by cable entry 19, for actions individual on the two electrical conductors 12 possibly present.

    Prise globalement, cette lamelle de serrage 20 forme une lame de ressort.Taken as a whole, this clamping strip 20 forms a leaf spring.

    De manière connue en soi, la borne de connexion 11 suivant l'invention comporte un organe d'actionnement 34, qui, à la disposition de l'usager, en étant accessible de l'extérieur du corps isolant 13 à la faveur d'un évidement 35 de celui-ci, est monté mobile par rapport à l'élément de contact fixe 14, entre deux positions, l'une de fermeture, figure 3, l'autre d'ouverture, figure 9, et dont il résulte, lorsqu'il est position d'ouverture, que l'élément de contact mobile 15 est lui-même dans une position d'ouverture pour laquelle, tel que représenté sur la figure 9, l'extrémité libre 32 de sa lamelle de serrage 20 est écartée de la paroi de serrage 18 de l'élément de contact fixe 14.In a manner known per se, the connection terminal 11 according to the invention comprises an actuating member 34, which, available to the user, being accessible from the outside of the insulating body 13 thanks to a recess 35 thereof, is mounted movable relative to the element of fixed contact 14, between two positions, one closing, FIG. 3, the other opening, FIG. 9, and from which it results, when in the open position, that the contact element mobile 15 is itself in an open position for which, as shown in Figure 9, the free end 32 of its clamping strip 20 is spaced from the wall of tightening 18 of the fixed contact element 14.

    A l'organe d'actionnement 34 sont associés des moyens de blocage 36 aptes à son maintien stable en position d'ouverture, en sorte que la position d'ouverture de l'élément de contact mobile 15 est elle-même une position stable.The actuating member 34 is associated with means blocking 36 able to keep it stable in position opening, so that the opening position of the element moving contact 15 is itself a stable position.

    Dans la forme de réalisation représentée, l'organe d'actionnement 34 est monté pivotant, à la manière d'un levier, par rapport à l'élément de contact fixe 14, autour d'un axe d'articulation A1, et la lamelle de serrage 20 de l'élément de contact mobile 15 est elle-même montée pivotante par rapport à l'élément de contact fixe 14, autour d'un axe d'articulation A2 distinct de l'axe d'articulation A1 de l'organe d'actionnement 34.In the embodiment shown, the member actuator 34 is pivotally mounted, in the manner of a lever, relative to the fixed contact element 14, around an axis of articulation A1, and the clamping strip 20 of the element of movable contact 15 is itself pivotally mounted relative to to the fixed contact element 14, around an axis of articulation A2 separate from the articulation axis A1 of the organ actuation 34.

    Les axes d'articulation A1, A2 sont schématisés par leur trace sur les figures 3, 8A, 8B, 8C et 9.The articulation axes A1, A2 are shown diagrammatically by their trace in FIGS. 3, 8A, 8B, 8C and 9.

    Par exemple, et tel que représenté, l'organe d'actionnement 34 est monté pivotant sur le corps isolant 13, au-dessus de l'élément de contact fixe 14, par des tourillons 37 qui en matérialisent l'axe d'articulation A1.For example, and as shown, the organ actuator 34 is pivotally mounted on the insulating body 13, above the fixed contact element 14, by pins 37 which materialize the axis of articulation A1.

    Quoi qu'il en soit, et suivant l'invention, cet organe d'actionnement 34 est apte à agir en traction sur l'élément de contact mobile 15 pour le passage de celui-ci en position d'ouverture, suivant des modalités décrites plus en détail ultérieurement, et les moyens de blocage 36 qui lui sont associés comportent, dans la forme de réalisation représentée, une transmission à genouillère 38 qui intervient entre lui et cet élément de contact mobile 15.Anyway, and according to the invention, this body actuator 34 is able to act in traction on the element of movable contact 15 for the passage of the latter into position opening hours, as described in more detail subsequently, and the blocking means 36 which are attached to it associates include, in the embodiment shown, a toggle transmission 38 which intervenes between it and this movable contact element 15.

    Dans la forme de réalisation représentée, cette transmission à genouillère 38 comporte, d'une part, une tirette 39, qui, suivant des dispositions décrites plus en détail ultérieurement, est attelée à l'élément de contact mobile 15, et, d'autre part, un bras d'entraínement 40, qui, lui, est solidaire de l'organe d'actionnement 34, et qui, dans son trajet, interfère avec la tirette 39 en un point A3 de celle-ci distinct tant de l'axe d'articulation A1 de l'organe d'actionnement 34 que de l'axe d'articulation A2 de la lamelle de serrage 20 de l'élément de contact mobile 15, avec, entre la tirette 39 et le bras d'entraínement 40, des moyens d'accrochage 41 propres à permettre l'entraínement de cette tirette 39 par ce bras d'entraínement 40.In the embodiment shown, this toggle transmission 38 comprises, on the one hand, a zipper 39, which, according to arrangements described in more detail subsequently, is coupled to the movable contact element 15, and, on the other hand, a drive arm 40, which is integral with the actuating member 34, and which, in its path, interferes with the drawbar 39 at a point A3 thereof distinct both from the articulation axis A1 of the organ actuation 34 that of the hinge axis A2 of the lamella clamping 20 of the movable contact element 15, with, between the pull tab 39 and the drive arm 40, means 41 suitable for allowing the training of this zipper 39 by this drive arm 40.

    Par exemple, et tel que représenté, ces moyens d'accrochage 41 comportent, sur la tirette 39, un retour 42, en forme de crosse, et, pour coopération avec ce retour 42, l'extrémité 43 du bras d'entraínement 40 est globalement arrondie.For example, and as shown, these means attachment 41 comprise, on the pull tab 39, a return 42, in the shape of a butt, and, for cooperation with this return 42, the end 43 of the drive arm 40 is generally rounded.

    Dans la forme de réalisation représentée, l'élément de contact mobile 15 comporte une lamelle d'entraínement 45, qui prolonge en continu sa lamelle de serrage 20, en faisant avec celle-ci un coude 46 aigu, et, par ce coude 46, dit ici par simple commodité coude d'articulation, l'élément de contact mobile 15 contourne la paroi d'appui 17 de l'élément de contact fixe 14, en étant au passage monté pivotant par une articulation de type à couteau sur cette paroi d'appui 17.In the embodiment shown, the element of movable contact 15 comprises a drive strip 45, which continuously extends its clamping strip 20, making with this one an acute bend 46, and, by this bend 46, said here by simple convenience elbow joint, contact element mobile 15 bypasses the bearing wall 17 of the contact element fixed 14, being pivotally mounted by a knife type joint on this support wall 17.

    Par exemple, et tel que représenté, par ce coude d'articulation 46, l'élément de contact mobile 15 est engagé sur celle des tranches de la paroi d'appui 17 de l'élément de contact fixe 14 qui est du côté des entrées de câble 18.For example, and as shown, by this elbow articulation 46, the movable contact element 15 is engaged on that of the edges of the bearing wall 17 of the element of fixed contact 14 which is on the side of the cable entries 18.

    L'axe d'articulation A2 de la lamelle de serrage 20 de l'élément de contact mobile 15 se trouve donc matérialisé par cette tranche.The hinge axis A2 of the clamping strip 20 of the movable contact element 15 is therefore materialized by this slice.

    Dans la zone médiane de son coude d'articulation 46, l'élément de contact mobile 15 présente un évidement, qui est en fait formé par un prolongement de la fente 31 séparant en deux branches 30 sa lamelle de serrage 20, et, par cet évidement, il est en prise avec un ergot 47 qui, prolongeant localement la paroi d'appui 17 de l'élément de contact fixe 14, fait saillie sur la tranche concernée de celle-ci.In the middle area of its articulation elbow 46, the movable contact element 15 has a recess, which is in fact formed by an extension of the slot 31 separating in two branches 30 its clamping strip 20, and, by this obviously, it is engaged with a lug 47 which, extending locally the support wall 17 of the fixed contact element 14, protrudes from the relevant section thereof.

    L'angle C1 que fait au repos le coude d'articulation 46 de l'élément de contact mobile 15, figure 9, est préférentiellement compris entre 20° et 80°. The angle C1 made by the articulation elbow at rest 46 of the movable contact element 15, FIG. 9, is preferably between 20 ° and 80 °.

    Par exemple, et tel que représenté, il est de l'ordre de 50°.For example, and as shown, it is around 50 °.

    Quoi qu'il en soit, la tirette 39 de la transmission à genouillère 38 prévue suivant l'invention est, dans la forme de réalisation représentée, attelée à la lamelle d'entraínement 45 de cet élément de contact mobile 15.Anyway, the pull tab 39 of the transmission toggle switch 38 provided according to the invention is, in the form of embodiment shown, coupled to the drive strip 45 of this movable contact element 15.

    Dans la forme de réalisation représentée, cette lamelle d'entraínement 45 comporte, successivement, à compter du coude d'articulation 46, un premier tronçon 49 et un deuxième tronçon 50, qui font entre eux un coude 51, et la tirette 39 est attelée au deuxième tronçon 50, c'est-à-dire à celui qui est le plus éloigné du coude d'articulation 46.In the embodiment shown, this drive plate 45 comprises, successively, counting of the articulation elbow 46, a first section 49 and a second section 50, which bends between them 51, and the zipper 39 is coupled to the second section 50, that is to say to the one farthest from the articulation elbow 46.

    En pratique, dans la forme de réalisation représentée, le deuxième tronçon 50 de la lamelle d'entraínement 45 s'étend du même côté du premier tronçon 49 que la lamelle de serrage 20, et, par le coude 51 que font entre eux ces deux tronçons 49, 50, l'élément de contact mobile 15 contourne, à distance, celle des tranches de la paroi d'appui 17 de l'élément de contact fixe 14 qui est du côté opposé aux entrées de câble 19.In practice, in the embodiment shown, the second section 50 of the drive strip 45 extends on the same side of the first section 49 as the clamping strip 20, and, by the elbow 51 which these two sections make between them 49, 50, the movable contact element 15 bypasses, at a distance, that of the edges of the bearing wall 17 of the element of fixed contact 14 which is on the side opposite the cable entries 19.

    En pratique, également, le coude 51 que font entre eux le premier tronçon 49 et le deuxième tronçon 50 de la lamelle d'entraínement 45 de l'élément de contact mobile 15 est un coude aigu.In practice, also, the elbow 51 which between them the first section 49 and the second section 50 of the strip drive 45 of the movable contact element 15 is a acute elbow.

    L'angle C2 que fait au repos ce coude 51, figure 8B, est préférentiellement compris entre 70° et 90°.The angle C2 that this elbow 51 makes at rest, FIG. 8B, is preferably between 70 ° and 90 °.

    Par exemple, et tel que représenté, il est de l'ordre de 80°.For example, and as shown, it is around 80 °.

    La tirette 39 de la transmission à genouillère 38 s'étend globalement en oblique par rapport au deuxième tronçon 50 de la lamelle d'entraínement 45 de l'élément de contact mobile 15, en se rapprochant du premier tronçon 49 de cette lamelle d'entraínement 45 au fur et à mesure qu'elle s'écarte du deuxième tronçon 50.The pull tab 39 of the toggle transmission 38 extends generally obliquely to the second section 50 of the drive plate 45 of the contact element mobile 15, approaching the first section 49 of this drive plate 45 as it moves away of the second section 50.

    L'angle C3 que fait au repos cette tirette 39 avec le deuxième tronçon 50 auquel elle est attelée, figure 8A, est préférentiellement compris entre 5° et 35°. The angle C3 made by this pull tab 39 at rest with the second section 50 to which it is coupled, FIG. 8A, is preferably between 5 ° and 35 °.

    Par exemple, et tel que représenté, il est de l'ordre de 20°.For example, and as shown, it is around 20 °.

    Quoi qu'il en soit, dans la forme de réalisation représentée, la tirette 39 traverse le premier tronçon 49 de la lamelle d'entraínement 45, à la faveur d'un évidement 52 de celle-ci qui, en pratique, s'étend aussi en continu sur le deuxième tronçon 50.Anyway, in the embodiment shown, the pull tab 39 crosses the first section 49 of the drive strip 45, by means of a recess 52 of this which, in practice, also extends continuously over the second section 50.

    Dans la forme de réalisation représentée, la tirette 39 est d'un seul tenant avec l'élément de contact mobile 15, en formant une seule et même pièce avec celui-ci, et l'évidement 52 qu'elle traverse est un crevé à la faveur duquel elle a été formée.In the embodiment shown, the zipper 39 is in one piece with the movable contact element 15, by forming a single piece with it, and the recess 52 which it crosses is a puncture by virtue of which she was trained.

    Longitudinalement, la tirette 39 de la transmission à genouillère 38 s'étend donc sensiblement suivant la zone médiane de l'élément de contact mobile 15.Longitudinally, the pull tab 39 of the transmission to knee brace 38 therefore extends substantially along the zone center of the movable contact element 15.

    Dans la forme de réalisation représentée, l'extrémité libre du deuxième tronçon 50 de la lamelle d'entraínement 45 est légèrement repliée en direction de la lamelle de serrage 20 au-delà de la racine de la tirette 39.In the embodiment shown, the end free of the second section 50 of the drive strip 45 is slightly folded towards the clamping strip 20 beyond the root of the zipper 39.

    Comme la lamelle de serrage 20, la tirette 39 est élastiquement déformable.Like the clamping strip 20, the pull tab 39 is elastically deformable.

    L'ensemble que l'élément de contact mobile 15 forme avec cette tirette 39 peut par exemple venir d'un feuillard en acier à ressort convenablement découpé et plié.The assembly which the movable contact element 15 forms with this zipper 39 can for example come from a strip in spring steel suitably cut and folded.

    Dans la forme de réalisation représentée, le bras d'entraínement 40 de la transmission à genouillère 38 prévue suivant l'invention est d'un seul tenant avec l'organe d'entraínement 34, en formant avec celui-ci une seule et même pièce, et, de l'autre côté de son axe d'articulation A1 par rapport à ce bras d'entraínement 40, l'organe d'actionnement 34 comporte un bras d'actionnement 53, qui, faisant saillie hors du corps isolant 13 à la faveur de l'évidement 35 de celui-ci, constitue la partie de cet organe d'actionnement 34 qui est accessible à l'usager.In the embodiment shown, the arm drive 40 of the toggle link transmission 38 provided according to the invention is in one piece with the organ 34, forming with it one and the same part, and, on the other side of its axis of articulation A1 by relative to this drive arm 40, the actuating member 34 has an actuating arm 53, which, projecting outside of the insulating body 13 through the recess 35 of this constitutes the part of this actuator 34 which is accessible to the user.

    Dans la forme de réalisation représentée, le bras d'actionnement 53 et le bras d'entraínement 40 de l'organe d'actionnement 34 font globalement entre eux un coude 54. In the embodiment shown, the arm actuator 53 and the drive arm 40 of the member actuation 34 generally form an elbow 54 between them.

    L'angle C4 de ce coude 54 est préférentiellement compris entre 45° et 90°, figure 9.The angle C4 of this elbow 54 is preferably between 45 ° and 90 °, figure 9.

    Par exemple, et tel que représenté, il est de l'ordre de 65°.For example, and as shown, it is around 65 °.

    Quoi qu'il en soit, l'axe d'articulation A1 de l'organe d'actionnement 34 s'étend entre l'axe d'articulation A2 de l'élément de contact mobile 15 et la tirette 39 de la transmission à genouillère 38.Anyway, the articulation axis A1 of the actuating member 34 extends between the hinge axis A2 of the movable contact element 15 and the pull tab 39 of the toggle transmission 38.

    Dans la forme de réalisation représentée, l'organe d'actionnement 34 est également apte à agir en poussée sur l'élément de contact mobile 15, pour le passage de celui-ci de sa position d'ouverture à une position de fermeture pour laquelle l'extrémité libre 32 de sa lamelle de serrage 20 est rapprochée de la paroi de serrage 18 de l'élément de contact fixe 14, cette extrémité libre 32 se trouvant alors en appui, soit, sous légère contrainte élastique, contre cette paroi de serrage 18 lorsque, comme représenté sur la figure 3, aucun conducteur électrique 12 n'est présent dans l'une ou l'autre des entrées de câble 19, soit, sous contrainte élastique plus accentuée, contre l'extrémité dénudée d'un conducteur électrique 12 lorsqu'un tel conducteur électrique 12 est présent dans l'une ou l'autre de ces entrées de câble 19.In the embodiment shown, the member 34 is also able to act on thrust on the movable contact element 15, for the passage thereof its open position to a closed position for which the free end 32 of its clamping strip 20 is close to the clamping wall 18 of the contact element fixed 14, this free end 32 then being in abutment, either, under slight elastic stress, against this wall of tightening 18 when, as shown in FIG. 3, no electrical conductor 12 is present in one or the other cable entries 19, i.e. under elastic stress more accentuated, against the bare end of a conductor electric 12 when such an electric conductor 12 is present in either of these cable entries 19.

    Par exemple, et tel que représenté, pour son action en poussée sur l'élément de contact mobile 15, l'organe d'actionnement 34 comporte au moins une joue 55, qui s'étend perpendiculairement à son axe d'articulation A1, et dont le trajet interfère avec la lamelle d'entraínement 45 de l'élément de contact mobile 15.For example, and as shown, for its action in thrust on the movable contact element 15, the member actuator 34 comprises at least one cheek 55, which extends perpendicular to its axis of articulation A1, and the path interferes with the drive plate 45 of the element mobile contact 15.

    En pratique, dans la forme de réalisation représentée, l'organe d'actionnement 34 comporte deux joues 55, qui, disposées de part et d'autre de son bras d'entraínement 40, en s'étendant légèrement au-delà de celui-ci, relient ce bras d'entraínement 40 au bras d'actionnement 53, en assurant ainsi le raidissement de l'ensemble, et qui encadrent la tirette 39 de la transmission à genouillère 38.In practice, in the embodiment shown, the actuating member 34 comprises two cheeks 55, which, arranged on either side of its drive arm 40, in extending slightly beyond it, connect this arm 40 to the actuating arm 53, thereby ensuring the stiffening of the assembly, and which frame the zipper 39 of the toggle drive 38.

    Le bras d'actionnement 53, quant à lui, s'étend sur toute la largeur de l'organe d'actionnement 34, de l'une à l'autre des surfaces extérieures des joues 55.The actuating arm 53, meanwhile, extends over the entire width of the actuating member 34, from one to the other of the outer surfaces of the cheeks 55.

    Corollairement, l'élément de contact mobile 15 est apte à se crocheter sur l'élément de contact fixe 14 en position de fermeture, en sorte que sa position de fermeture est aussi une position stable.As a corollary, the movable contact element 15 is suitable for hooking onto the fixed contact element 14 in closed position, so that its closed position is also a stable position.

    Dans la forme de réalisation représentée, pour le crochetage de l'élément de contact mobile 15 sur l'élément de contact fixe 14, la tirette 39 de la transmission à genouillère 38 comporte au moins un épaulement 56 par lequel elle peut s'engager sur un épaulement 57 de l'élément de contact fixe 14.In the embodiment shown, for the hooking of the movable contact element 15 on the element of fixed contact 14, the pull tab 39 of the toggle joint transmission 38 has at least one shoulder 56 by which it can engage on a shoulder 57 of the fixed contact element 14.

    En pratique, la tirette 39 présente, successivement, à compter du deuxième tronçon 50 de la lamelle d'entraínement 45 de l'élément de contact mobile 15 un tronçon de plus grande largeur 39' et un tronçon de plus petite largeur 39", et, à la racine de ce dernier, elle comporte, transversalement, deux épaulements 56, disposés chacun respectivement de part et d'autre de ce tronçon de plus petite largeur 39".In practice, the pull tab 39 presents, successively, from the second section 50 of the drive strip 45 of the movable contact element 15 a larger section width 39 'and a smaller section 39 ", and, at the root of the latter, it comprises, transversely, two shoulders 56, each arranged respectively on the side and on the other side of this section of smaller width 39 ".

    Corollairement, l'élément de contact fixe 14 présente, en correspondance, deux épaulements 57, à la faveur d'une échancrure 58 affectant, dans sa zone médiane, celle des tranches de sa paroi d'appui 17 qui est opposée aux entrées de câble 19.As a corollary, the fixed contact element 14 has, in correspondence, two shoulders 57, thanks to a notch 58 affecting, in its median zone, that of edges of its support wall 17 which is opposite to the entrances of cable 19.

    Dans la forme de réalisation représentée, tant l'élément de contact fixe 14 que l'élément de contact mobile 15 sont en matériau conducteur, et, l'appareil électrique 10 concerné étant supposé être un interrupteur, l'élément de contact fixe 14 porte localement un grain de contact 60.In the embodiment shown, both the fixed contact element 14 as the movable contact element 15 are of conductive material, and, the electrical appliance 10 concerned being supposed to be a switch, the element of fixed contact 14 locally carries a contact grain 60.

    Par exemple, et tel que représenté, ce grain de contact 60 est rapporté sur une paroi de contact 61 qui, du côté opposé aux entrées de câble 19, forme un retour en équerre pour un prolongement 62 d'une des parois latérales 21 de l'élément de contact fixe 14, figures 5 et 6.For example, and as shown, this grain of contact 60 is attached to a contact wall 61 which, from the opposite side to the cable entries 19, forms a right angle for an extension 62 of one of the side walls 21 of the fixed contact element 14, FIGS. 5 and 6.

    Dans la forme de réalisation représentée, enfin, l'élément de contact fixe 14 comporte, aussi, au-delà de la tranche de sa paroi de serrage 18 qui est du côté opposé aux entrées de câble 19, pour limiter l'engagement dans celles-ci des conducteurs électriques 12, une paroi d'arrêt 63. In the embodiment shown, finally, the fixed contact element 14 also comprises, beyond the edge of its clamping wall 18 which is on the side opposite the cable entries 19, to limit engagement therein electrical conductors 12, a barrier wall 63.

    En pratique, cette paroi d'arrêt 63 vient d'un seul tenant de l'autre des parois latérales 21 de cet élément de contact fixe 14, en formant elle aussi un retour en équerre pour celle-ci.In practice, this stop wall 63 comes from a single holding on the other side walls 21 of this element of fixed contact 14, also forming a square return for this one.

    Cette paroi d'arrêt 63 s'étend transversalement entre la paroi de serrage 18 de l'élément de contact fixe 14 et le deuxième tronçon 50 de la lamelle d'entraínement 45 de l'élément de contact mobile 15.This stop wall 63 extends transversely between the clamping wall 18 of the fixed contact element 14 and the second section 50 of the drive strip 45 of the movable contact element 15.

    La paroi de contact 61 s'étend, elle, au-delà de ce deuxième tronçon 50.The contact wall 61, for its part, extends beyond this second section 50.

    On supposera tout d'abord, en référence à la figure 3, que l'organe d'actionnement 34 est en position de fermeture et que, par voie de conséquence, il en est de même pour l'élément de contact mobile 15.We will first assume, with reference to Figure 3, that the actuating member 34 is in the closed position and that, consequently, it is the same for the element mobile contact 15.

    Par ses épaulements 56, la tirette 39 de la transmission à genouillère 38 est donc en prise avec les épaulements 57 de l'élément de contact fixe 14.By its shoulders 56, the zipper 39 of the toggle transmission 38 is therefore engaged with the shoulders 57 of the fixed contact element 14.

    Il en résulte, par construction, que, par son extrémité libre 32, la lamelle de serrage 20 de l'élément de contact mobile 15 est conjointement en appui élastique sur la paroi de serrage 18 de l'élément de contact fixe 14.It follows, by construction, that, by its free end 32, the clamping strip 20 of the element movable contact 15 is jointly in elastic support on the clamping wall 18 of the fixed contact element 14.

    Si, cependant, l'extrémité, au préalable dénudée, d'un conducteur électrique 12 est engagée dans l'une ou l'autre des entrées de câble 19, et si l'âme conductrice de ce conducteur électrique 12 présente toute la rigidité nécessaire, la branche 30 correspondante de la lamelle de serrage 20 de l'élément de contact mobile 15 est refoulée élastiquement, par pivotement autour de l'axe d'articulation A2, tel que schématisé en traits interrompus sur la figure 3, ce qui conduit, comme recherché, au branchement de ce conducteur électrique 12 dans la borne de connexion 11.If, however, the previously stripped end of a electrical conductor 12 is engaged in one or other of the cable entries 19, and if the conductive core of this conductor electric 12 has all the necessary rigidity, the branch 30 corresponding to the clamping strip 20 of the element movable contact 15 is driven elastically, by pivoting around the axis of articulation A2, as shown schematically in lines interrupted in FIG. 3, which leads, as sought, when connecting this electrical conductor 12 to the terminal connection 11.

    Ainsi, lorsque l'élément de contact mobile 15 est en position de fermeture, la borne de connexion 11 suivant l'invention intervient à la manière d'une borne de connexion automatique.Thus, when the movable contact element 15 is in closed position, the next connection terminal 11 the invention operates as a connection terminal automatic.

    On supposera maintenant que, tel que schématisé par une flèche F1 sur les figures 8A, 8B et 8C, l'organe d'actionnement 34 est basculé en direction de sa position d'ouverture, par pivotement autour de son axe d'articulation A1.We will now assume that, as shown schematically by an arrow F1 in FIGS. 8A, 8B and 8C, the member 34 is tilted towards its position opening, by pivoting around its axis of articulation A1.

    Dans un premier temps, le bras d'entraínement 40 de cet organe d'actionnement 34 vient porter par son extrémité 43 contre la tirette 39 de la transmission à genouillère 38, ce qui conduit les épaulements 56 de cette tirette 39 à échapper aux épaulements 57 de l'élément de contact fixe 14, comme représenté sur la figure 8A.At first, the drive arm 40 of this actuating member 34 comes to carry by its end 43 against the pull tab 39 of the toggle joint transmission 38, this which leads the shoulders 56 of this zipper 39 to escape at the shoulders 57 of the fixed contact element 14, as shown in Figure 8A.

    Dans un deuxième temps, l'organe d'actionnement 34 entraíne avec lui, par son bras d'entraínement 40, la tirette 39, moyennant une déformation élastiquement temporaire de celle-ci, et, par cette tirette 39, il entraíne donc l'élément de contact mobile 15, qui, tel que schématisé par la flèche F2 sur les figures 8B et 8C, pivote alors autour de son axe d'articulation A2.Secondly, the actuator 34 with him, by his drive arm 40, the pull tab 39, by means of an elastically temporary deformation of it, and, by this zipper 39, it therefore drives the element mobile contact 15, which, as shown by arrow F2 in Figures 8B and 8C, then pivots around its axis of articulation A2.

    La lamelle de serrage 20 de l'élément de contact mobile 15 s'écarte alors progressivement de la paroi de serrage 18 de l'élément de contact fixe 14.The clamping strip 20 of the contact element mobile 15 then gradually moves away from the clamping wall 18 of the fixed contact element 14.

    Le basculement de l'organe d'actionnement 34 étant poursuivi, il arrive un moment où, dans un troisième temps, le point de contact A3 entre l'extrémité 43 du bras d'actionnement 40 et la tirette 39 de la transmission à genouillère 38 franchit, élastiquement, à force, le point neutre matérialisé par la ligne imaginaire L, qui, tel que schématisé en traits interrompus sur les figures 8C et 9, passe à la fois par l'axe d'articulation A1 de cet organe d'actionnement 34 et l'axe d'articulation A2 de l'élément de contact mobile 15.The tilting of the actuating member 34 being continued, there comes a point when, in a third step, the contact point A3 between the end 43 of the actuating arm 40 and the pull tab 39 of the toggle transmission 38 cross, elastically, by force, the neutral point materialized by the imaginary line L, which, as shown schematically in lines interrupted in Figures 8C and 9, passes through both the axis of articulation A1 of this actuating member 34 and the axis hinge A2 of the movable contact element 15.

    Dès lors, et du fait de la sollicitation élastique dont il est alors l'objet de la part de la tirette 39, tel que schématisé par la flèche F3 sur la figure 9, l'organe d'actionnement 34 est soumis à un couple qui tend à le maintenir de manière stable en position d'ouverture, cette position d'ouverture étant en pratique atteinte lorsque, au terme de son basculement, il vient en appui contre une butée, non visible sur les figures, prévue à cet effet sur le corps isolant 13. Therefore, and due to the elastic stress of which it is then the object on the part of the zipper 39, such as shown diagrammatically by arrow F3 in FIG. 9, the member actuation 34 is subjected to a torque which tends to keep stably in the open position, this open position being reached in practice when, at term of its tilting, it comes to bear against a stop, not visible in the figures, provided for this purpose on the body insulator 13.

    L'organe d'actionnement 34 étant ainsi en position stable d'ouverture, il en est de même pour l'élément de contact mobile 15, et, donc, pour sa lamelle de serrage 20, qui demeure dès lors à distance de la paroi de serrage 18 de l'élément de contact fixe 14.The actuator 34 thus being in position stable opening, the same applies to the contact element mobile 15, and therefore for its clamping strip 20, which remains therefore at a distance from the clamping wall 18 of the element of fixed contact 14.

    L'engagement d'un conducteur électrique 12 dans l'une ou l'autre des entrées de câble 19, tel que schématisé en traits interrompus sur la figure 9, se trouve ainsi avantageusement facilité.The engagement of an electrical conductor 12 in one either of the cable entries 19, as shown schematically in broken lines in Figure 9, is thus advantageously facilitated.

    Pour le branchement, ensuite, de ce conducteur électrique 12 sur la borne de connexion 11, il suffit de ramener en position de fermeture l'organe d'actionnement 34.For the connection, then, of this conductor 12 on the connection terminal 11, just return the actuating member 34 to the closed position.

    Lors du basculement correspondant, qui se fait en sens inverse du précédent, les joues 55 de l'organe d'actionnement 34 viennent porter sur le premier tronçon 49 de la lamelle d'entraínement 45 de l'élément de contact mobile 15, ce qui ramène progressivement celui-ci à sa position initiale de fermeture, cependant que, d'une part, prenant contact avec le conducteur électrique 12, la lamelle de serrage 20 de cet élément de contact mobile 15 soumet progressivement ce conducteur électrique 12 à un effort suffisant pour assurer son maintien dans la borne de connexion 11, et que, d'autre part, par retour à sa configuration élastique au terme du mouvement de pivotement correspondant, la tirette 39 de la transmission à genouillère 38 vient d'elle-même se prendre par ses épaulements 56 sur les épaulements 57 de l'élément de contact fixe 14, en assurant à nouveau le maintien stable en position de fermeture de l'ensemble.During the corresponding tilting, which is done in the opposite direction reverse of the previous one, the cheeks 55 of the actuating member 34 come to bear on the first section 49 of the strip drive 45 of the movable contact element 15, which gradually brings it back to its original position of closure, however that, on the one hand, contacting the electrical conductor 12, the clamping strip 20 of this movable contact element 15 progressively submits this electrical conductor 12 at sufficient effort to ensure its holding in the connection terminal 11, and that, on the other hand, by returning to its elastic configuration at the end of the movement corresponding pivot, the pull tab 39 of the transmission knee switch 38 comes by itself to take by its shoulders 56 on the shoulders 57 of the contact element fixed 14, again ensuring stable holding in position closing of the assembly.

    Pour le débranchement du conducteur électrique 12, il suffit de ramener l'organe d'actionnement 34 en position d'ouverture.To disconnect the electrical conductor 12, it just bring the actuator 34 into position opening hours.

    Il peut en être ainsi tant pour un conducteur électrique 12 à âme conductrice souple multibrin que pour un conducteur électrique 12 à âme conductrice rigide ou semi-rigide.It can be so both for a driver electric 12 with flexible multi-strand conductive core only for a electrical conductor 12 with rigid or semi-rigid conductive core.

    En pratique, les surfaces de contact entre l'extrémité 43 du bras d'entraínement 40 de l'organe d'actionnement 34 et la tirette 39 de la transmission à genouillère 38 sont des surfaces cylindriques, en sorte que le contact correspondant se fait suivant une droite A3 plutôt que suivant un point A3.In practice, the contact surfaces between the end 43 of the drive arm 40 of the actuating member 34 and the pull tab 39 of the toggle link 38 are cylindrical surfaces, so that the corresponding contact is done along an A3 straight line rather than along a point A3.

    En outre ce point A3 ou cette droite A3 se déplace au fur et à mesure du basculement de l'organe d'actionnement 34.In addition, this point A3 or this straight line A3 moves to the as the actuating member 34 tilts.

    Mais, à chaque instant, il ou elle peut être assimilé à un axe d'articulation.But, at any moment, he or she can be assimilated to an axis of articulation.

    Par ailleurs, et ainsi qu'il est aisé de le comprendre, le fait que la borne de connexion 11 suivant l'invention présente deux entrées de câble 19 permet de procéder si désiré à un repiquage à son niveau.In addition, and as it is easy to understand, the fact that the following connection terminal 11 the invention has two cable entries 19 for transplant to its level if desired.

    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 of execution.

    En particulier, au lieu d'être monté pivotant, l'organe d'actionnement pourrait tout aussi bien être monté mobile en translation, pourvu, d'une part, que, de sa position de fermeture à sa position d'ouverture, il entraíne avec lui l'élément de contact mobile, et, d'autre part, qu'il lui soit associé des moyens de blocage aptes à le maintenir de manière stable en position de fermeture.In particular, instead of being pivotally mounted, the actuator could just as easily be mounted movable in translation, provided, on the one hand, that, from its position closing in its open position, it drags with it the movable contact element, and, secondly, that it is associated with locking means capable of holding it so stable in closed position.

    En outre, seul l'un des éléments de contact pourrait être en matériau conducteur.In addition, only one of the contact elements could be of conductive material.

    Lorsqu'il s'agit de l'élément de contact mobile, il suffit, par exemple, qu'il lui soit attelé un conducteur électrique souple.When it comes to the movable contact element, it it is enough, for example, to have a conductor attached flexible electric.

    Enfin, le domaine d'application de l'invention n'est pas nécessairement limité à celui du seul équipement des appareils électriques.Finally, the scope of the invention is not not necessarily limited to that of equipment only electrical appliances.

    Au contraire, eu égard aux deux entrées de câble qu'elle comporte, la borne de connexion suivant l'invention peut tout aussi bien intervenir isolément, à la manière d'un connecteur, pour l'établissement d'une liaison entre deux conducteurs électriques.On the contrary, having regard to the two cable entries that it comprises, the connection terminal according to the invention can just as well intervene in isolation, like a connector, for establishing a connection between two electrical conductors.

    Claims (25)

    1. A connecting terminal of the kind comprising, in an insulating body (13), two contact elements (14, 15) of which one at least is of a conducting material, namely on the one hand a fixed contact element (14) which is relatively rigid and which between two opposite walls (17, 18) forms at least one cable entry (19), and on the other hand a mobile contact element (15) which comprises in inclined relationship between the two walls (17, 18) of the fixed contact element (14) an elastically deformable clamping tongue (20), said clamping tongue (20) being mounted pivotably with respect to one of the walls (17) of the fixed contact element (14), referred to as the support wall, and extending freely in cantilever relationship in the direction of the other of said walls (18), referred to as the clamping wall, becoming closer to said clamping wall (18) in proportion to its increasing distance from the cable entry (19), with, available to the user, being accessible from the exterior of the insulating body (13), an actuating member (34) which is mounted movably with respect to the fixed contact element (14) between two positions, one being a closure position and the other being an open position, and which provides when it is in the open position that the mobile contact element (15) is itself in an open position in which the free end (32) of its clamping tongue (20) is moved away from the clamping wall (18) of the fixed contact element (14), and, associated with the actuating member (34), blocking means (36) adapted to hold it stably in the open position, in such a way that the open position of the mobile contact element (15) is itself a stable position, characterised in that, the actuating member (34) being mounted pivotably in the manner of a lever and the clamping tongue (20) of the mobile contact element (15) itself being mounted pivotably about a pivot axis (A2) which is separate from the pivot axis (Al) of the actuating member (34), said actuating member (34) is capable of acting in a traction mode on the mobile contact element (15) for moving same into the open position, and the blocking means (36) which are associated therewith comprise a toggle transmission (38) which is operatively disposed between it and the mobile contact element (15).
    2. A connecting terminal according to claim 1 characterised in that the toggle transmission (38) comprises on the one hand a pull member (39) which is coupled to the mobile contact element (15) and on the other hand an entrainment arm (40) which is fixed with respect to the actuating member (34) and which in its path of movement interferes with the pull member (39) at a point (A3) thereof which is separate both from the pivot axis (A1) of the actuating member (34) and the pivot axis (A2) of the clamping tongue (20) of the mobile contact element (15), with, between said pull member (39) and said entrainment arm (40), hooking means (41) capable of permitting entrainment of said pull member (39) by said entrainment arm (40).
    3. A connecting terminal according to claim 2 characterised in that the hooking means (41) comprise on the pull member (39) an arcuately hooked bend portion (42).
    4. A connecting terminal according to claim 3 characterised in that, for co-operation with the bend portion (42) of the pull member (39), the end (43) of the entrainment arm (40) is generally rounded.
    5. A connecting terminal according to any one of claims 2 to 4 characterised in that the mobile contact element (15) comprises an entrainment tongue (45) which continuously prolongs its clamping tongue (20), forming an acute elbow bend (46) therewith, by means of said elbow bend (46), referred to as the pivot elbow bend, the mobile contact element (15) passes around the support wall (17) of the fixed contact element (14), as it passes therearound being mounted pivotably on said support wall (17) by a pivot mounting of the knife edge type, and the pull member (39) of the toggle transmission (38) is coupled to said entrainment tongue (45).
    6. A connecting terminal according to claim 5 characterised in that, by means of its pivot elbow bend (46), the mobile contact element (15) is engaged on that of the edges of the support wall (17) of the fixed contact element (14), which is at the side of the cable entry (19).
    7. A connecting terminal according to claim 6 characterised in that, in the central zone of its pivot elbow bend (46), the mobile contact element (15) has an opening and by way of said opening it is engaged with a lug (47) which, locally extending the support wall (17) of the fixed contact element (14), projects from the edge thereof.
    8. A connecting terminal according to any one of claims 5 to 7 characterised in that, from the pivot elbow bend (46), the entrainment tongue (45) of the mobile contact element (15) successively comprises a first portion (49) and a second portion (50) which form an elbow bend (51) between them, and the pull member (39) of the toggle transmission (38) is coupled to the second portion (50), that is to say that which is most remote from the pivot elbow bend (46).
    9. A connecting terminal according to claim 8 characterised in that the second portion (50) of the entrainment tongue (45) of the mobile contact element (15) extends on the same side of the first portion (49) as the clamping tongue (20) and, by means of the elbow bend (51) which said first portion (49) and said second portion (50) form between them, the mobile contact element (15) passes at a spacing around that one of the edges of the support wall (17) of the fixed contact element (14), which is at the side opposite to the cable entry (19).
    10. A connecting terminal according to claim 9 characterised in that the elbow bend (51) which the first portion (49) and the second portion (50) of the entrainment tongue (45) of the mobile contact element (15) form between them is an acute elbow bend.
    11. A connecting terminal according to any one of claims 1 to 10 characterised in that the pull member (39) of the toggle transmission (38) extends generally inclinedly with respect to the second portion (50) of the entrainment tongue (45) of the mobile contact element (15), becoming closer to the first portion (49) of said entrainment tongue (45) in proportion to its increasing distance from said second portion (50).
    12. A connecting terminal according to claims 10 and 11 in combination characterised in that the pull member (39) of the toggle transmission (38) passes through the first portion (49) of the entrainment tongue (45) of the mobile contact element (15) by virtue of an opening (52) in said entrainment tongue (45).
    13. A connecting terminal according to any one of claims 2 to 12 characterised in that the pull member (39) of the toggle transmission (38) is in integral relationship with the mobile contact element (15), forming one and the same member therewith.
    14. A connecting terminal according to any one of claims 2 to 13 characterised in that the pull member (39) of the toggle transmission (38) is elastically deformable.
    15. A connecting terminal according to any one of claims 2 to 14 characterised in that the pivot axis (A1) of the actuating member (34) extends between the pivot axis (A2) of the mobile contact element (15) and the pull member (39) of the toggle transmission (38).
    16. A connecting terminal according to any one of claims 2 to 15 characterised in that the entrainment arm (40) of the toggle transmission (38) is in integral relationship with the actuating member (34), forming one and the same member therewith, and, on the other side of its pivot axis (A1) with respect to said entrainment arm (40), the actuating member (34) comprises an actuating arm (53) which, projecting out of the insulating body (13), constitutes the part of said actuating member (34) which is accessible to the user.
    17. A connecting terminal according to claim 16 characterised in that the actuating arm (53) and the entrainment arm (40) of the actuating member (34) form an elbow bend (54) between them.
    18. A connecting terminal according to any one of claims 1 to 16 characterised in that the actuating member (34) is mounted pivotably on the insulating body (13).
    19. A connecting terminal according to any one of claims 1 to 18 characterised in that the actuating member (34) is also capable of acting with a thrust force on the mobile contact element (15) for moving same from its open position to a closure position in which the free end (32) of its clamping tongue (20) is moved towards the clamping wall (18) of the fixed contact element (14).
    20. A connecting terminal according to claims 5 and 19 in combination characterised in that, for its thrust action on the mobile contact element (15), the actuating member (34) comprises at least one side plate portion (55) which extends perpendicularly with respect to its pivot axis (A1) and the path of movement of which interferes with the entrainment tongue (45) of said mobile contact element (15).
    21. A connecting terminal according to either one of claims 19 and 20 characterised in that the mobile contact element (15) is capable of latching on to the fixed contact element (14) in the closure position in such a way that its closure position is also a stable position.
    22. A connecting terminal according to claims 2 and 21 in combination characterised in that, for latching engagement of the mobile contact element (15) on to the fixed contact element (14), the pull member (39) of the toggle transmission (38) comprises at least one shoulder (56), by way of which it can engage against a shoulder (57) of the fixed contact element (14).
    23. A connecting terminal according to any one of claims 1 to 22 characterised in that the fixed contact element (14) is generally of a tubular configuration.
    24. A connecting terminal according to any one of claims 1 to 23 characterised in that the fixed contact element (14) forms in side-by-side relationship two cable entries (19), the clamping tongue (20) of the mobile contact element (15) is divided longitudinally into two arms (30) over a part at least of its length from its free end (32), with one arm (30) for each cable entry (19), and, between said cable entries (19), the clamping wall (18) of the fixed contact element (14) has at least one opening (28) through which is engaged a lug (29) fixed with respect to the insulating body (13).
    25. An electrical apparatus equipped with at least one connecting terminal (11) characterised in that the connecting terminal (11) is in accordance with any one of claims 1 to 24.
    EP97402410A 1996-10-16 1997-10-13 Automatic connnection terminal and an electrical device fitted with such a terminal Expired - Lifetime EP0837526B1 (en)

    Applications Claiming Priority (2)

    Application Number Priority Date Filing Date Title
    FR9612634A FR2754640B1 (en) 1996-10-16 1996-10-16 AUTOMATIC CONNECTION TERMINAL, AND ELECTRIC APPARATUS EQUIPPED WITH SUCH CONNECTION TERMINAL
    FR9612634 1996-10-16

    Publications (2)

    Publication Number Publication Date
    EP0837526A1 EP0837526A1 (en) 1998-04-22
    EP0837526B1 true EP0837526B1 (en) 2001-01-03

    Family

    ID=9496731

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP97402410A Expired - Lifetime EP0837526B1 (en) 1996-10-16 1997-10-13 Automatic connnection terminal and an electrical device fitted with such a terminal

    Country Status (5)

    Country Link
    EP (1) EP0837526B1 (en)
    AU (1) AU722382B2 (en)
    DE (1) DE69703829T2 (en)
    ES (1) ES2153170T3 (en)
    FR (1) FR2754640B1 (en)

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    CN105449382A (en) * 2014-08-22 2016-03-30 进联电子科技(上海)有限公司 Improved structure of electric conductor terminal base
    EP4068519A1 (en) * 2018-03-28 2022-10-05 Wago Verwaltungsgesellschaft mbH Conductor connecting terminal, clamping spring of a conductor terminal and terminal block
    EP3613103B1 (en) * 2017-04-18 2022-10-19 Phoenix Contact GmbH & Co KG Spring-force connection

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    DE19855050A1 (en) * 1998-11-28 2000-05-31 Wuerth Adolf Gmbh & Co Kg Plug-in terminal
    ATE302475T1 (en) * 2000-12-11 2005-09-15 Hager Electro ELECTRICAL CONNECTOR WITH CAGE SPRING AND SELF-SUPPORTING LEVER
    FR2877502B1 (en) * 2004-10-28 2009-01-23 Professional General Elect TERMINAL ELEMENT AND CONNECTOR WITHOUT SCREW.
    FR2909227B1 (en) * 2006-11-28 2009-04-03 Legrand France AUTOMATIC ELECTRICAL CONNECTION TERMINAL.
    DE102008039868A1 (en) 2008-08-27 2010-03-04 Phoenix Contact Gmbh & Co. Kg Electrical connection terminal
    JP5253577B2 (en) 2008-08-27 2013-07-31 フェニックス コンタクト ゲーエムベーハー ウント コムパニー カーゲー Electrical connection terminal
    DE102010024809B4 (en) * 2010-06-23 2013-07-18 Wago Verwaltungsgesellschaft Mbh terminal
    DE102011110640B4 (en) * 2011-08-18 2014-07-31 Wago Verwaltungsgesellschaft Mbh Conductor terminal
    DE102011081329A1 (en) * 2011-08-22 2013-02-28 Bimed Teknik A.S. Terminal for electrical connection of conductors
    DE202011051516U1 (en) * 2011-10-04 2013-01-08 Weidmüller Interface GmbH & Co. KG Connecting device for connecting a conductor end
    DE102012011794A1 (en) 2012-06-15 2013-12-19 Phoenix Contact Gmbh & Co. Kg Electrical connection terminal
    ITPD20130245A1 (en) 2013-09-10 2015-03-11 Vimar Spa DEVICE FOR ELECTRICAL SYSTEMS
    DE102014117699B4 (en) * 2014-12-02 2021-12-09 Phoenix Contact Gmbh & Co. Kg Ladder clamp device
    DE102015100823B4 (en) 2015-01-21 2021-12-09 Phoenix Contact Gmbh & Co. Kg Electrical connection terminal
    LU93148B1 (en) 2016-07-13 2018-01-23 Phoenix Contact Gmbh & Co Kg Intellectual Property Licenses & Standards terminal
    DE202017107208U1 (en) * 2017-11-28 2019-03-04 Weidmüller Interface GmbH & Co. KG Connecting device for connecting a conductor end
    DE202017107209U1 (en) * 2017-11-28 2019-03-04 Weidmüller Interface GmbH & Co. KG Connecting device for connecting a conductor end
    DE202017107202U1 (en) 2017-11-28 2019-04-04 Weidmüller Interface GmbH & Co. KG Connecting device for connecting a conductor end
    DE202018101726U1 (en) * 2018-03-28 2019-07-01 Wago Verwaltungsgesellschaft Mbh Conductor connection terminal, clamping spring of a conductor connection terminal and terminal block
    DE102018110312A1 (en) * 2018-03-28 2019-10-02 Wago Verwaltungsgesellschaft Mbh Conductor terminal

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    CN105449382A (en) * 2014-08-22 2016-03-30 进联电子科技(上海)有限公司 Improved structure of electric conductor terminal base
    CN105449382B (en) * 2014-08-22 2018-08-31 进联电子科技(上海)有限公司 The structure-improved of electric lead terminal base
    EP3613103B1 (en) * 2017-04-18 2022-10-19 Phoenix Contact GmbH & Co KG Spring-force connection
    EP4068519A1 (en) * 2018-03-28 2022-10-05 Wago Verwaltungsgesellschaft mbH Conductor connecting terminal, clamping spring of a conductor terminal and terminal block
    EP3776742B1 (en) * 2018-03-28 2024-03-20 Wago Verwaltungsgesellschaft mbH Conductor connection terminal

    Also Published As

    Publication number Publication date
    DE69703829T2 (en) 2001-07-19
    DE69703829D1 (en) 2001-02-08
    FR2754640A1 (en) 1998-04-17
    FR2754640B1 (en) 1998-12-18
    AU4099097A (en) 1998-04-23
    EP0837526A1 (en) 1998-04-22
    ES2153170T3 (en) 2001-02-16
    AU722382B2 (en) 2000-08-03

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