EP0224402A1 - Snap switches - Google Patents

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Publication number
EP0224402A1
EP0224402A1 EP86402344A EP86402344A EP0224402A1 EP 0224402 A1 EP0224402 A1 EP 0224402A1 EP 86402344 A EP86402344 A EP 86402344A EP 86402344 A EP86402344 A EP 86402344A EP 0224402 A1 EP0224402 A1 EP 0224402A1
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EP
European Patent Office
Prior art keywords
blade
elastic
contact blade
contact
control element
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP86402344A
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German (de)
French (fr)
Inventor
Jean Rogero
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.)
Mors SA
Original Assignee
Mors SA
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Filing date
Publication date
Application filed by Mors SA filed Critical Mors SA
Publication of EP0224402A1 publication Critical patent/EP0224402A1/en
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/02—Details
    • H01H13/26—Snap-action arrangements depending upon deformation of elastic members
    • H01H13/36—Snap-action arrangements depending upon deformation of elastic members using flexing of blade springs

Definitions

  • the invention relates to contactors which comprise: at least one relatively rigid conductive contact blade, one end of which is mounted so as to be able to rotate about a fixed axis relative to an insulating housing, so that this blade can pivot between two extreme angular positions for the first of which the other end or free end of this contact blade is spaced from a fixed contact pad but for the second of which this latter end is in contact with this pad; elastic means continuously exerting on the contact blade an approximately longitudinal thrust, directed towards said fixed axis; and a control element capable of temporarily exerting on the blade, against the action of a return means, a force capable of passing the contact blade from the first to the second of the above extreme positions, the return means then causing the contact blade to return to the first of its extreme positions.
  • Such contactors are well known but they are of a relatively complicated construction and assembly and therefore of too high a cost price.
  • their control element is of the type actuated directly by the user, they do not give the user a feeling touch of the contactor closing, at the arrival of the free end of the contact blade on its stud.
  • the object of the invention is in particular to remedy these drawbacks of known contactors.
  • the contactor according to the invention is essentially characterized in that the elastic means acting on the contact blade and the return means acting on the control element are combined in a single elastic blade, one end of which is held by the housing and the other end of which is connected to an intermediate part of the contact blade and in that the elastic blade is bent under elastic tension according to an arcuate transverse profile having its convexity towards the control element, which is arranged to act by pushing on an intermediate part of this elastic blade.
  • the contactor is thus composed of only three moving parts, namely the control element, the relatively rigid contact blade and the elastic blade, and its assembly is therefore simple as will be explained in more detail using the figures.
  • the control element exerts its action in the direction of application of the contact blade towards its stud, the user experiences a tactile sensation when the contactor closes when this control element is of the directly actuated type. by the user.
  • the elastic blade has a tongue which is preferably made in one piece with this blade and which projects towards the control element to cooperate with it and the housing comprises stop means limiting the return movement of the control element.
  • the presence of this tab has the effect of sparing the elastic blade from excessive deformation when the contacts are closed.
  • the contactor comprises, in known manner, a contact blade 1, relatively rigid, one of the ends 2 of which is mounted so as to be able to rotate about an axis X - X which is fixed relative to an insulating housing 3.
  • the contact blade 1 can thus pivot between two extreme positions shown respectively in FIGS. 1 and 2.
  • FIGS. 1 and 2 For the first of these positions (FIG. 1), the free end 4 of the contact blade 1, opposite to the end 2 is spaced from a contact pad 5 whose tail 6 is partially embedded in the housing 3 during the molding thereof and emerges from the bottom of this housing to form a connection terminal.
  • the free end 4 of the contact blade 1 is in contact with the stud 5.
  • the contactor comprises a control element preferably manual and such as a push button 7 which is guided in translation relative to the housing 3 and whose return movement (upwards of FIGS. 1 and 2) is limited by means stop (not shown).
  • a control element preferably manual and such as a push button 7 which is guided in translation relative to the housing 3 and whose return movement (upwards of FIGS. 1 and 2) is limited by means stop (not shown).
  • An elastic blade 8 is combined with this relatively rigid contact blade 1, one end 9 of which is fixed relative to the housing 3 and the other end 10 of which is connected to an intermediate part of the contact blade 1.
  • This elastic blade 8, which may or may not be of electrically conductive material, is bent under elastic tension according to an arcuate profile having its convexity towards the control element or push button 7 (see FIGS. 1 and 2), which is arranged to act by pushing on an intermediate part of the elastic blade.
  • the end 9 of the elastic blade 8 is forked and has two branches 11 defining a notch 12 whose role will be explained below.
  • the end of each branch 11 is engaged in a housing 13 provided in the housing 3, which gives the end 9 a fixed position relative to the latter.
  • the latter has an opening 14 of closed outline, for example rectangular, in which is engaged the end 10 which has the shape of 'A spout and which is provided with a suitable shoulder to limit its insertion into the opening 14.
  • the contact blade 1 is pushed into a notch 15 formed in a terminal 16 whose tail 17 is mounted in the housing 3 like that 6 of the pad 5.
  • the notch 15 is shaped so as to allow the contact blade 1 to pivot around the axis XX.
  • the contact blade 1 has two lateral spouts 18 which keep it centered relative to the terminal 16.
  • the elastic blade 8 has a tongue 20 which is obtained by cutting this blade 8 and which projects towards the push-button 7, so as to cooperate with a projection 21 thereof.
  • the tongue 20 leaves tangentially from the vicinity of the bottom of the notch 12 of the elastic blade 8, with a less curvature than that of this elastic blade, as can be seen from FIGS. 1 and 2.
  • a contactor is thus obtained, the method of mounting and operation of which are as follows.
  • the elastic blade 8 slightly relaxes by abruptly driving the contact blade 1 towards the cut-off position shown in FIG. 1 and by raising the push button 7, by means of the tongue 20.
  • the only elastic blade 8 thus performs the following functions: - Print the contact blade 1 a movement in accordance with the control movement received from the operating member 7, which allows it to close and open the contact; - Give this movement a high speed, independent of the speed of movement of the operating member 7, when the contact blade 1 joins the fixed stud 5 and when it deviates from it; - in the closed contact position ( Figure 2), press the contact blade 1 on the fixed stud 5 with a force allowing the requested performance to be obtained; - in the open contact position ( Figure 1), maintain the contact blade 1 in this position, in accordance with the required performance; - Apply to the operating member 7 a force recalling it and keeping it in the rest position ( Figure 1) when it is not actuated.
  • the elastic blade 8 works thanks to the elasticity of the material which constitutes it (which can be mineral or organic, electrically conductive or insulating).
  • the end 9 of the elastic blade 8 has been shown and described as capable of pivoting with respect to the housing 3, it can also be embedded in the latter without the operation of the contactor being modified.
  • the elastic blade 8, especially when it is made of a material which does not conduct electricity, can be associated not with a single contact blade, as described above and shown, but with several blades. contact 1 mounted in parallel.

Abstract

An elastic strip (8), one end (9) of which is held by an insulating box (3) and the other end (10) of which is connected to an intermediate part of a contact strip (1), is curved under elastic tension along an arched transverse profile offering its convexity towards a control element (7), which element is arranged so as to act by pressing on an intermediate part of this elastic strip (8). <IMAGE>

Description

L'invention est relative aux contacteurs qui com­prennent : au moins une lame de contact conductrice relative­ment rigide dont l'une des extrémités est montée de façon à pouvoir tourner autour d'une axe fixe par rapport à un boîtier isolant, si bien que cette lame peut pivoter entre deux posi­tions angulaires extrêmes pour la première desquelles l'autre extrémité ou extrémité libre de cette lame de contact est écartée d'un plot de contact fixe mais pour la seconde des­quelles cette dernière extrémité est en contact avec ce plot ; un moyen élastique exerçant continuellement sur la lame de contact une poussée approximativement longitudinale, dirigée vers ledit axe fixe ; et un élément de commande capable d'exer­cer momentanément sur la lame, contre l'action d'un moyen de rappel, une force capable de faire passer la lame de contact de la première à la deuxième des susdites positions extrêmes, le moyen de rappel provoquant ensuite le retour de la lame de contact à la première de ses positions extrêmes.The invention relates to contactors which comprise: at least one relatively rigid conductive contact blade, one end of which is mounted so as to be able to rotate about a fixed axis relative to an insulating housing, so that this blade can pivot between two extreme angular positions for the first of which the other end or free end of this contact blade is spaced from a fixed contact pad but for the second of which this latter end is in contact with this pad; elastic means continuously exerting on the contact blade an approximately longitudinal thrust, directed towards said fixed axis; and a control element capable of temporarily exerting on the blade, against the action of a return means, a force capable of passing the contact blade from the first to the second of the above extreme positions, the return means then causing the contact blade to return to the first of its extreme positions.

De tels contacteurs sont bien connus mais ils sont d'une construction et d'un montage relativement compliqués et par conséquent d'un prix de revient trop élevé. De plus, lors­que leur élément de commande est du type actionné directement par l'utilisateur, ils ne donnent pas à celui-ci une sensation tactile de la fermeture du contacteur, à l'arrivée de l'ex­trémité libre de la lame de contact sur son plot.Such contactors are well known but they are of a relatively complicated construction and assembly and therefore of too high a cost price. In addition, when their control element is of the type actuated directly by the user, they do not give the user a feeling touch of the contactor closing, at the arrival of the free end of the contact blade on its stud.

L'invention a notamment pour but de remédier à ces inconvénients des contacteurs connus.The object of the invention is in particular to remedy these drawbacks of known contactors.

Elle a également pour but de mettre en mouvement brusque la lame de contact, lorsqu'elle s'écarte du susdit plot ou lorsqu'elle vient prendre appui sur celui-ci.It also aims to put in abrupt movement the contact blade, when it departs from the aforesaid stud or when it comes to bear on it.

A cet effet, le contacteur conforme à l'inven­tion est essentiellement caractérisé en ce que le moyen élas­tique agissant sur la lame de contact et le moyen de rappel agissant sur l'élément de commande sont combinés en une seule lame élastique, dont une extrémité est maintenue par le boî­tier et dont l'autre extrémité est reliée à une partie inter­médiaire de la lame de contact et en ce que la lame élastique est courbée sous tension élastique selon un profil transversal arqué présentant sa convexité vers l'élément de commande, le­quel est agencé de façon à agir par poussée sur une partie intermédiaire de cette lame élastique.To this end, the contactor according to the invention is essentially characterized in that the elastic means acting on the contact blade and the return means acting on the control element are combined in a single elastic blade, one end of which is held by the housing and the other end of which is connected to an intermediate part of the contact blade and in that the elastic blade is bent under elastic tension according to an arcuate transverse profile having its convexity towards the control element, which is arranged to act by pushing on an intermediate part of this elastic blade.

Le contacteur est ainsi composé de trois pièces mobiles seulement, à savoir l'élément de commande, la lame de contact relativement rigide et la lame élastique, et son montage est donc simple ainsi qu'il sera expliqué plus en détail à l'aide des figures. En outre, comme l'élément de commande exerce son action dans le sens de l'application de la lame de contact vers son plot, l'utilisateur éprouve une sensation tactile à la fermeture du contacteur lorsque cet élément de commande est du type actionné directement par l'utilisateur.The contactor is thus composed of only three moving parts, namely the control element, the relatively rigid contact blade and the elastic blade, and its assembly is therefore simple as will be explained in more detail using the figures. In addition, as the control element exerts its action in the direction of application of the contact blade towards its stud, the user experiences a tactile sensation when the contactor closes when this control element is of the directly actuated type. by the user.

Selon une construction particulière avantageuse, la lame élastique comporte une languette qui est de préférence faite d'une seule pièce avec cette lame et qui fait saillie vers l'élément de commande pour coopérer avec celui-ci et le boîtier comprend des moyens de butée limitant le mouvement de retour de l'élément de commande. La présence de cette languet­te a pour effect d'épargner à la lame élastique des déformations excessives lors de la fermeture des contacts.According to a particular advantageous construction, the elastic blade has a tongue which is preferably made in one piece with this blade and which projects towards the control element to cooperate with it and the housing comprises stop means limiting the return movement of the control element. The presence of this tab has the effect of sparing the elastic blade from excessive deformation when the contacts are closed.

L'invention va être maintenant expliquée plus en détail à l'aide des dessins annexés qui illustrent un mode de réalisation préféré du contacteur conforme à l'invention.

  • Les figures 1 et 2 représentent ce contacteur en élévation avec parties coupées, respectivement en position de repos et en postion de travail.
  • La figure 3 représente le même contacteur vu en plan par le haut des figures 1 et 2, son bouton-poussoir étant enlevé.
The invention will now be explained in more detail using the appended drawings which illustrate a preferred embodiment of the contactor according to the invention.
  • Figures 1 and 2 show this contactor in elevation with cut parts, respectively in the rest position and in the working position.
  • FIG. 3 represents the same contactor seen in plan from the top of FIGS. 1 and 2, its push button being removed.

Le contacteur conforme à l'invention comprend, de façon connue, une lame de contact 1, relativement rigide, dont l'une des extrémités 2 est montée de façon à pouvoir tourner autour d'un axe X - X qui est fixe par rapport à un boîtier isolant 3. La lame de contact 1 peut ainsi pivo­ter entre deux positions extrêmes représentées respective­ment aux figures 1 et 2. Pour la première de ces positions (figure 1), l'extrémité libre 4 de la lame de contact 1, opposée à l'extrémité 2, est écartée d'un plot de contact 5 dont la queue 6 est partiellement noyée dans le boîtier 3 lors du moulage de celui-ci et émerge du fond de ce boîtier pour former une borne de connexion. Pour la seconde de ces positions (figure 2), l'extrémité libre 4 de la lame de con­tact 1 est en contact avec le plot 5.The contactor according to the invention comprises, in known manner, a contact blade 1, relatively rigid, one of the ends 2 of which is mounted so as to be able to rotate about an axis X - X which is fixed relative to an insulating housing 3. The contact blade 1 can thus pivot between two extreme positions shown respectively in FIGS. 1 and 2. For the first of these positions (FIG. 1), the free end 4 of the contact blade 1, opposite to the end 2 is spaced from a contact pad 5 whose tail 6 is partially embedded in the housing 3 during the molding thereof and emerges from the bottom of this housing to form a connection terminal. For the second of these positions (FIG. 2), the free end 4 of the contact blade 1 is in contact with the stud 5.

Le contacteur comporte un élément de commande de préférence manuel et tel qu'un bouton-poussoir 7 qui est guidé en translation par rapport au boîtier 3 et dont le mouvement de rappel (vers le haut des figures 1 et 2) est limité par des moyens de butée (non représentés).The contactor comprises a control element preferably manual and such as a push button 7 which is guided in translation relative to the housing 3 and whose return movement (upwards of FIGS. 1 and 2) is limited by means stop (not shown).

On combine à cette lame de contact relativement rigide 1 une lame élastique 8 dont une extrémité 9 est fixe par rapport au boîtier 3 et dont l'autre extrémité 10 est reliée à une partie intermédiaire de la lame de contact 1. Cette lame élastique 8, qui peut ou non être en matière conductrice de l'électricité, est courbée sous tension élastique selon un profil arqué présentant sa convexité vers l'élément de com­mande ou bouton-poussoir 7 (voir les figures 1 et 2), lequel est agencé de façon à agir par poussée sur une partie inter­médiaire de la lame élastique.An elastic blade 8 is combined with this relatively rigid contact blade 1, one end 9 of which is fixed relative to the housing 3 and the other end 10 of which is connected to an intermediate part of the contact blade 1. This elastic blade 8, which may or may not be of electrically conductive material, is bent under elastic tension according to an arcuate profile having its convexity towards the control element or push button 7 (see FIGS. 1 and 2), which is arranged to act by pushing on an intermediate part of the elastic blade.

Selon le mode de rélisation représenté, l'ex­trémité 9 de la lame élastique 8 est fourchue et présente deux branches 11 délimitant une encoche 12 dont le rôle sera expliqué ci-après. L'extrémité de chaque branche 11 est enga­gée dans un logement 13 prévu dans le boîtier 3, ce qui donne à l'extrémité 9 une position fixe par rapport à celui-ci.According to the embodiment shown, the end 9 of the elastic blade 8 is forked and has two branches 11 defining a notch 12 whose role will be explained below. The end of each branch 11 is engaged in a housing 13 provided in the housing 3, which gives the end 9 a fixed position relative to the latter.

Pour relier l'extrémité 10 de la lame élastique 8 à une partie intermédiaire de la lame de contact 1, celle-­ci présente une ouverture 14 de contour fermé, par exemple rectangulaire, dans laquelle est engagée l'extrémité 10 qui a la forme d'un bec et qui est munie d'un épaulement propre à limiter son enfoncement dans l'ouverture 14. La lame de contact 1 est poussée dans une encoche 15 ménagée dans une borne 16 dont la queue 17 est montée dans le boîtier 3 comme celle 6 du plot 5. L'encoche 15 est conformée de façon à per­mettre à la lame de contact 1 de pivoter autour de l'axe X-X. Comme il ressort de la figure 3, la lame de contact 1 présente deux becs latéraux 18 qui la maintiennent centrée par rapport à la borne 16. Deux tétons 19, venus de moulage avec le boî­tier 3, maintiennent latéralement la lame de contact 1 dont l'extrémité libre 4 joue librement à l'intérieur de l'encoche 12 de la lame élastique arquée 8. En raison de la tension élas­tique de celle-ci, la lame de contact 1 est empêchée de s'échapper de l'encoche 15.To connect the end 10 of the elastic blade 8 to an intermediate part of the contact blade 1, the latter has an opening 14 of closed outline, for example rectangular, in which is engaged the end 10 which has the shape of 'A spout and which is provided with a suitable shoulder to limit its insertion into the opening 14. The contact blade 1 is pushed into a notch 15 formed in a terminal 16 whose tail 17 is mounted in the housing 3 like that 6 of the pad 5. The notch 15 is shaped so as to allow the contact blade 1 to pivot around the axis XX. As can be seen from FIG. 3, the contact blade 1 has two lateral spouts 18 which keep it centered relative to the terminal 16. Two pins 19, molded with the housing 3, laterally hold the contact blade 1, the l the free end 4 plays freely inside the notch 12 of the arcuate elastic blade 8. Due to the elastic tension of the latter, the contact blade 1 is prevented from escaping from the notch 15.

La lame élastique 8 comporte une languette 20 qui est obtenue par découpage de cette lame 8 et qui fait saillie vers le bouton-poussoir 7, de façon à coopérer avec une sail­lie 21 de celui-ci. De préférence, la languette 20 part tan­gentiellement du voisinage du fond de l'encoche 12 de la lame élastique 8, avec une courbure moins forte que celle de cette lame élastique, ainsi qu'il ressort des figures 1 et 2.The elastic blade 8 has a tongue 20 which is obtained by cutting this blade 8 and which projects towards the push-button 7, so as to cooperate with a projection 21 thereof. Preferably, the tongue 20 leaves tangentially from the vicinity of the bottom of the notch 12 of the elastic blade 8, with a less curvature than that of this elastic blade, as can be seen from FIGS. 1 and 2.

On obtient ainsi un contacteur dont le mode de montage et le fonctionnement sont les suivants.A contactor is thus obtained, the method of mounting and operation of which are as follows.

Pour monter le contacteur, on commence par fabriquer séparément le boîtier 3 avec le plot 5 et la borne 16, le bouton-poussoir 7, la lame de contact 1 et la lame élasti­que 8. Puis on place ces deux lames 1 et 8 sur le boîtier 3, en engageant l'extrémité 2 de la lame 1 dans l'encoche 15 et sa partie intermédiaire entre les tétons 19, puis l'ex­trémité 10 de la lame 8 dans l'ouverture 14 de la lame 1 et ses branches 11 dans les logements 13, à cheval sur l'extré­mité 4 de la lame 1, en bandant ainsi la lame 8. Puis on adapte le bouton-poussoir par clipsage sur le boîtier 3 où il est maintenu par les susdits moyens de butée.To mount the contactor, we start by manufacturing separately the housing 3 with the stud 5 and the terminal 16, the push button 7, the contact blade 1 and the elastic blade 8. Then these two blades 1 and 8 are placed on the housing 3, engaging the end 2 of the blade 1 in the notch 15 and its intermediate part between the pins 19, then the end 10 of the blade 8 in the opening 14 of the blade 1 and its branches 11 in the housings 13, straddling the end 4 of the blade 1, thus bandaging the blade 8. Then the push-button is adapted by clipping onto the housing 3 where it is held by the above abutment means.

A la position de repos illustrée à la figure 1, la tension de la lame élastique 8 exerce une composante de force dirigée de bas en haut selon les figures 1 et 2, qui a pour effet de maintenir la lame de contact 1 à l'écart du plot 5 et de repousser élastiquement le bouton-poussoir 7 vers le haut, par l'intermédiaire de la languette 20 en appui sur la saillie 21.In the rest position illustrated in Figure 1, the tension of the elastic blade 8 exerts a force component directed from bottom to top according to Figures 1 and 2, which has the effect of keeping the contact blade 1 away of the stud 5 and of resiliently pushing the push button 7 upwards, by means of the tongue 20 bearing on the projection 21.

lorsque l'utilisateur appuie sur le bouton-pous­soir 7, la languette 20 est abaissée par la saillie 21, ce qui fait tourner la lame élastique 8 autour de son extrémité 2 et abaisse son extrémité opposée 10 en augmentant la ten­sion de cette lame élastique 8.when the user presses the push button 7, the tongue 20 is lowered by the projection 21, which rotates the elastic blade 8 around its end 2 and lowers its opposite end 10 by increasing the tension of this elastic blade 8 .

Lorsque la résultante des forces appliquées sur le point d'articulation 10, 14 entre les lames 1 et 8 se trouve dirigée vers le bas (selon les figures 1 et 2), la lame de contact 10 se trouve entraînée vers le plot 5. Simultanément la flexion de la lame élastique 8 diminue en libérant une énergie qui provoque le déplacement brusque de la lame de contact 1, jusqu'à ce qu'un nouvel équilibre soit obtenu à la position de la figure 2 où l'extrémité 4 de la lame 1 vient toucher brusquement le plot 6, ce qui est ressenti par l'uti­lisateur qui appuie sur le bouton-poussoir 7. La borne 17 se trouve ainsi reliée électriquement au plot 5 par la lame de contact 1.When the result of the forces applied to the articulation point 10, 14 between the blades 1 and 8 is directed downward (according to FIGS. 1 and 2), the contact blade 10 is drawn towards the stud 5. Simultaneously the flexion of the elastic blade 8 decreases by releasing an energy which causes the abrupt displacement of the contact blade 1, until a new equilibrium is obtained at the position of FIG. 2 where the end 4 of the blade 1 abruptly touches the pad 6, which is felt by the user who presses the push button 7. The terminal 17 is thus electrically connected to the pad 5 by the contact blade 1.

Lorsqu'on lâche le bouton-poussoir 7, la lame élastique 8 se détend légèrement en entraînant brusquement la lame de contact 1 vers la position de coupure représentée à la figure 1 et en faisant remonter le bouton-poussoir 7, par l'intermédiaire de la languette 20.When the push button 7 is released, the elastic blade 8 slightly relaxes by abruptly driving the contact blade 1 towards the cut-off position shown in FIG. 1 and by raising the push button 7, by means of the tongue 20.

La seule lame élastique 8 assure ainsi les fonc­tions suivantes :
- imprimer à la lame de contact 1 un mouvement conforme au mouvement de commande reçu de l'organe de manoeuvre 7, qui lui permet de fermer et d'ouvrir le contact ;
- conférer à ce mouvement une vitesse importante, indépendante de la vitesse du mouvement de l'organe de manoeuvre 7, lors­que la lame de contact 1 rejoint le plot fixe 5 et lorsqu'il s'en écarte ;
- en position de contact fermé (figure 2), plaquer la lame du contact 1 sur le plot fixe 5 avec une force autorisant l'obtention des performances demandées ;
- en position de contact ouvert (figure 1), maintenir la lame de contact 1 dans cette position, conformément aux per­formances demandées ;
- appliquer à l'organe de manoeuvre 7 une force le rappelant et le maintenant en position de repos (figure 1) lorsqu'il n'est pas actionné.The only elastic blade 8 thus performs the following functions:
- Print the contact blade 1 a movement in accordance with the control movement received from the operating member 7, which allows it to close and open the contact;
- Give this movement a high speed, independent of the speed of movement of the operating member 7, when the contact blade 1 joins the fixed stud 5 and when it deviates from it;
- in the closed contact position (Figure 2), press the contact blade 1 on the fixed stud 5 with a force allowing the requested performance to be obtained;
- in the open contact position (Figure 1), maintain the contact blade 1 in this position, in accordance with the required performance;
- Apply to the operating member 7 a force recalling it and keeping it in the rest position (Figure 1) when it is not actuated.

La lame élastique 8 fonctionne grâce à l'élasti­cité de la matière qui la constitue (laquelle peut être miné­rale ou organique, conductrice de l'électricité ou isolante).The elastic blade 8 works thanks to the elasticity of the material which constitutes it (which can be mineral or organic, electrically conductive or insulating).

Bien que l'extrémité 9 de la lame élastique 8 ait été représentée et décrite comme capable de pivoter par rap­port au boîtier 3, elle peut aussi être encastrée dans ce dernier sans que le fonctionnement du contacteur soit modifié. De même, la lame élastique 8, surtout lorsq'elle est faite d'une matière non conductrice de l'électricité, peut être associée non pas à une seule lame de contact, comme décrit ci-dessus et représenté, mais à plusieurs lames de contact 1 montées en parallèle.Although the end 9 of the elastic blade 8 has been shown and described as capable of pivoting with respect to the housing 3, it can also be embedded in the latter without the operation of the contactor being modified. Similarly, the elastic blade 8, especially when it is made of a material which does not conduct electricity, can be associated not with a single contact blade, as described above and shown, but with several blades. contact 1 mounted in parallel.

Claims (6)

1. Contacteur qui comprend : au moins une lame de contact conductrice (1) relativement rigide dont l'une des extrémités (2) est montée de façon à pouvoir tourner autour d'un axe fixe par rapport à un boîtier isolant (3), si bien que cette lame de contact peut pivoter entre deux positions angulaires extrêmes, pour la première desquelles l'autre extrémité ou extrémité libre (4) de cette lame de contact (1) est écartée d'un plot de contact fixe (5) mais pour la seconde desquelles cette dernière extrémité (4) est en con­tact avec ce plot (5); un moyen élastique exerçant conti­nuellement sur la lame de contact (1) une poussée approxima­tivement longitudinale, dirigée vers ledit axe (X - X) ; et un élément de commande (7) capable d'exercer momentanément sur la lame de contact (1), contre l'action d'un moyen de rappel, une force capable de faire passer la lame de contact (1) de la première à la deuxième des susdites positions ex­trêmes, le moyen de rappel provoquant ensuite le retour de la lame de contact (1) à la première de ses positions extrêmes, caractérisé en ce que le moyen élastique agissant sur la lame de contact (1) et le moyen de rappel agissant sur l'élément de commande (7) sont combinés en une seule lame élastique (8), dont une extrémité (9) est maintenue par le boîtier (3) et dont l'autre extrémité est reliée à une partie intermédiaire de la lame de contact (1) et en ce que la lame élastique (8) est courbée sous tension élastique selon un profil tranversal arqué présentant sa convexité vers l'élément de commande (7), lequel est agencé de façon à agir par poussée sur une partie intermédiaire de cette lame élastique (8).1. Contactor which comprises: at least one relatively rigid conductive contact blade (1), one of the ends (2) of which is mounted so as to be able to rotate about a fixed axis relative to an insulating housing (3), so that this contact blade can pivot between two extreme angular positions, for the first of which the other end or free end (4) of this contact blade (1) is separated from a fixed contact pad (5) but for the second of which this last end (4) is in contact with this stud (5); elastic means continuously exerting on the contact blade (1) an approximately longitudinal thrust, directed towards said axis (X - X); and a control element (7) capable of temporarily exerting on the contact blade (1), against the action of a return means, a force capable of passing the contact blade (1) from the first to the second of the above extreme positions, the return means then causing the contact blade (1) to return to the first of its extreme positions, characterized in that the elastic means acting on the contact blade (1) and the means return acting on the control element (7) are combined into a single elastic blade (8), one end (9) of which is held by the housing (3) and the other end of which is connected to an intermediate part of the contact blade (1) and in that the elastic blade (8) is bent under elastic tension according to an arcuate transverse profile having its convexity towards the control element (7), which is arranged so as to act by pushing on an intermediate part of this elastic blade (8). 2. Contacteur selon la revendication 1, caractérisé en ce que l'élément de commande (7) est du type manuel.2. Contactor according to claim 1, characterized in that the control element (7) is of the manual type. 3. Contacteur selon l'une des revendications 1 et 2, caratérisé en ce que la lame élastique (8) comporte une languette (20) qui fait saillie vers l'élément de commande (7) pour coopérer avec celui-ci.3. Contactor according to one of claims 1 and 2, characterized in that the elastic blade (8) has a tongue (20) which projects towards the control element (7) to cooperate therewith. 4. Contacteur selon la revendication 3, caractérisé en ce que la languette (20) est faite d'une seule pièce avec la lame élastique (8).4. Contactor according to claim 3, characterized in that the tongue (20) is made in one piece with the elastic blade (8). 5. Contacteur selon l'une quelconque des revendi­cations 1 à 4, caractérisé en ce que l'extrémité (9), main­tenue par le boîtier (3), de la lame élastique (8) est four­chue et présente deux branches (11) délimitant une encoche (12) à l'intérieur de laquelle joue librement l'extrémité libre (4) de la lame de contact (1).5. Contactor according to any one of claims 1 to 4, characterized in that the end (9), held by the housing (3), of the elastic blade (8) is forked and has two branches (11) delimiting a notch (12) inside which freely plays the free end (4) of the contact blade (1). 6. Contacteur selon l'une quelconque des revendi­cations 1 à 5, caractérisé en ce que la lame de contact (1) présente une ouverture (14), de contour fermé, dans laquelle est engagée l'autre extrémité (10) de la lame élastique (8), laquelle extrémité a la forme d'un bec et est munie d'un épau­lement propre à limiter son enfoncement dans cette ouverture (14).6. Contactor according to any one of claims 1 to 5, characterized in that the contact blade (1) has an opening (14), of closed contour, in which is engaged the other end (10) of the blade elastic (8), which end has the shape of a beak and is provided with a shoulder capable of limiting its penetration into this opening (14).
EP86402344A 1985-10-22 1986-10-20 Snap switches Withdrawn EP0224402A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8515640 1985-10-22
FR8515640A FR2588999A1 (en) 1985-10-22 1985-10-22 IMPROVEMENTS TO SUSPENDED RUPTURE CONTACTORS

Publications (1)

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EP0224402A1 true EP0224402A1 (en) 1987-06-03

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EP86402344A Withdrawn EP0224402A1 (en) 1985-10-22 1986-10-20 Snap switches

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EP (1) EP0224402A1 (en)
FR (1) FR2588999A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0314925A2 (en) * 1987-10-08 1989-05-10 Omron Corporation Microswitch
US4904832A (en) * 1987-10-08 1990-02-27 Omron Tateisi Electronics Co. Microswitch
EP2557368A1 (en) 2011-08-12 2013-02-13 Marco Zambolin Procedure for regulating an air flow in an air conditioning sytem and air conditioning system therefor

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1370274A (en) * 1962-09-19 1964-08-21 Plessey Company Uk Ltd Snap-action mechanism for electrical switches
US4316066A (en) * 1979-09-10 1982-02-16 International Telephone And Telegraph Corporation Key switch with snap-action contact and resilient actuator
EP0118870A2 (en) * 1983-03-05 1984-09-19 Omron Tateisi Electronics Co. Push-button switch
US4480937A (en) * 1982-08-30 1984-11-06 Eckhardt Richard A Breakaway leafspring actuated keyswitch apparatus

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1370274A (en) * 1962-09-19 1964-08-21 Plessey Company Uk Ltd Snap-action mechanism for electrical switches
US4316066A (en) * 1979-09-10 1982-02-16 International Telephone And Telegraph Corporation Key switch with snap-action contact and resilient actuator
US4480937A (en) * 1982-08-30 1984-11-06 Eckhardt Richard A Breakaway leafspring actuated keyswitch apparatus
EP0118870A2 (en) * 1983-03-05 1984-09-19 Omron Tateisi Electronics Co. Push-button switch

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0314925A2 (en) * 1987-10-08 1989-05-10 Omron Corporation Microswitch
EP0314925A3 (en) * 1987-10-08 1989-06-07 Omron Tateisi Electronics Co. Microswitch
US4904832A (en) * 1987-10-08 1990-02-27 Omron Tateisi Electronics Co. Microswitch
EP2557368A1 (en) 2011-08-12 2013-02-13 Marco Zambolin Procedure for regulating an air flow in an air conditioning sytem and air conditioning system therefor

Also Published As

Publication number Publication date
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