EP1938347A1 - Push-push electric switching device having push-button guiding means - Google Patents

Push-push electric switching device having push-button guiding means

Info

Publication number
EP1938347A1
EP1938347A1 EP06808173A EP06808173A EP1938347A1 EP 1938347 A1 EP1938347 A1 EP 1938347A1 EP 06808173 A EP06808173 A EP 06808173A EP 06808173 A EP06808173 A EP 06808173A EP 1938347 A1 EP1938347 A1 EP 1938347A1
Authority
EP
European Patent Office
Prior art keywords
housing
push button
push
button
connecting arm
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP06808173A
Other languages
German (de)
French (fr)
Other versions
EP1938347B1 (en
Inventor
Tony Belet
Laurent Janicot
Emmanuel Maneyrol
Jean-François Mourgaud
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 SNC
Legrand France SA
Original Assignee
Legrand SNC
Legrand France SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Legrand SNC, Legrand France SA filed Critical Legrand SNC
Publication of EP1938347A1 publication Critical patent/EP1938347A1/en
Application granted granted Critical
Publication of EP1938347B1 publication Critical patent/EP1938347B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/02—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch
    • H01H3/12—Push-buttons
    • H01H3/122—Push-buttons with enlarged actuating area, e.g. of the elongated bar-type; Stabilising means therefor
    • H01H3/125—Push-buttons with enlarged actuating area, e.g. of the elongated bar-type; Stabilising means therefor using a scissor mechanism as stabiliser
    • 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
    • H01H13/50—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a single operating member
    • H01H13/56—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a single operating member the contact returning to its original state upon the next application of operating force
    • H01H13/562—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a single operating member the contact returning to its original state upon the next application of operating force making use of a heart shaped cam

Definitions

  • the present invention relates generally to electrical switching devices such as switches and back and forth.
  • a tilting trainer adapted to pivot between two stable positions to put in contact or out of contact a mobile electric contactor with a fixed electrical contactor
  • a pushbutton accessible to the user; a nut integral with the pushbutton adapted to cooperate with the tilting coach to rotate it between the two stable positions, and
  • the main disadvantage of such devices is that the guide means in translation of the push button are not sufficient to maintain its support surface always perpendicular to the direction of translation of the push button regardless of the support point of the push button. user on the support surface. Indeed, it may happen that the user, by pressing the pushbutton eccentrically relative to the central portion on which the return spring acts, causes the tilting of the push button thus causing a bad cooperation of the nut with the trainer or even a blockage of said push button in the opening that receives it.
  • the present invention proposes an electrical switching device in which the translational guidance of the pushbutton in the housing is improved. More particularly, the invention proposes an electrical switching device as defined in the introduction, in which the translational guiding means comprise two link arms connected to each other by a pivot axis while crossing each other and cooperating with the housing and the push button to move together in the manner of scissors.
  • the translational guiding means comprise two link arms connected to each other by a pivot axis while crossing each other and cooperating with the housing and the push button to move together in the manner of scissors.
  • these two arms link the push button to the housing by supporting each of these two parts in several distinct points and moving together. They therefore form a lifting table which ensures the correct positioning of the push button during its translation regardless of the size of the push button and whatever the point of support of the effort exerted by the user on this button.
  • the connecting arms give the device rigidity and robustness essential to its frequent and durable use.
  • one of the connecting arms comprises a low end connected to the casing by a pivot connection and an upper end connected to the pushbutton by a slide connection. sliding axis parallel to the plane of the support surface of the push button, and, secondly, the other of the connecting arm comprises a low end connected to the housing by a sliding connection of axis parallel to said axis of sliding and a high end connected to the push button by a pivot connection.
  • each connecting arm has a U-shape with two lateral branches connected to one another by a transverse branch.
  • This U-shaped configuration of the connecting arms makes it possible to release the central space of the housing reserved for the electrical switching mechanism.
  • each connecting arm forms a low end and the transverse branch of each connecting arm forms a high end.
  • the link arms have four points of contact with the housing and four points of contact with the push button, thus ensuring the push button a correct seat on the housing.
  • the lower ends of the connecting arms carrying cylindrical tenons, the tenons of an arm fit into a housing of the housing while its upper end fits into a sliding groove of the push button, and the tenons of the other arm fit into a sliding groove of the housing while its upper end snaps into a snap groove of the push button.
  • each connecting arm carries a rib provided with two notches adapted to maintain laterally each connecting arm relative to the push button.
  • the device comprises elastic means for returning the push button in the rest position which act on the link arms in a direction transverse to the direction of translation of the push button.
  • the push button when no effort is exerted on the push button, the latter is placed automatically and quickly in the rest position so that it is always ready to be actuated to cause the electrical switching of the switching mechanism.
  • said elastic return means are compression springs arranged between a side wall of the housing and the free ends lateral branches of a connecting arm which slide in the sliding groove provided in the housing.
  • the space in the center of the device reserved for the switching mechanism is left free.
  • the lower ends of a connecting arm move in the housing orthogonal to the axis of the translation of the push button to arrange the return springs orthogonally to this axis of translation in a space does not interfere with the establishment of the electrical switching mechanism.
  • the elastic return means are compression springs disposed between a side wall of the push button and the upper end of the link arm which slides in the sliding groove provided on the push button.
  • abutment means limiting the deployment of the connecting arms to maintain the push button in the rest position.
  • said stop means of the push button comprise a bulge disposed at the mouth of the sliding groove provided on the housing or on the push button and which cooperates with a low end or a high end of a link arm .
  • the nut being able to take two tilting positions corresponding to the two stable positions of the tilting coach, there is provided means for returning the nut in a centered position between these two tilting positions. .
  • the nut is automatically returned to the initial position in order to be able to cooperate properly with the tilting coach at the next descent of the push button.
  • FIG. 1 is a schematic perspective exploded view of a switching device according to the invention
  • FIG. 2 is a diagrammatic perspective view of push button guiding means of the switching device of FIG. 1;
  • FIG. 3 is a schematic perspective view of the guide means of Figure 2 assembled with the push button of the device of Figure 1;
  • FIG. 4 is a sectional view along the plane A-A of Figure 3.
  • FIG. 1 diagrammatically shows an electrical switching device. It can be a simple switch or a back and forth depending on the type of switching mechanism 50 associated with it. In all cases, this device comprises a housing 40 having four side walls which border a bottom wall open at its center by an opening 41 accommodating a rocker arm 51 pivotally mounted on the base of the switching mechanism 50.
  • the tilting driver 51 is adapted to pivot between two stable positions to put in contact or out of contact a movable electric contactor with a fixed electrical contactor (not shown).
  • the electrical switching device further comprises a push button 10 accessible to the user and which closes the front face of the housing 40.
  • This push button 10 is adapted to translate between a rest position and a depressed position by sliding the along the side walls of the casing 40.
  • the pushbutton 10 In order to cooperate with the tilting driver 51, the pushbutton 10 carries in the center of its rear face a nut 20 adapted to cooperate with the tilting driver 51 to rotate it between its stable positions.
  • the nut 20 has on two of its lateral faces an attachment pin 21 intended to be inserted into a latching groove projecting from the rear face of the push button 10. It is thus adapted to pivot relative to the button. 10 during the translation of the latter to take two tilting positions corresponding inversely to the two stable positions of the tilting driver 51.
  • the tilting driver 51 is in the form of a U-shaped cradle with two parallel branches which internally comprise a sidewalk 52; the nut 20 has on its back side two shoulders 22 intended to bear alternately on the sidewalks 52 of the two branches of the tilting trainer 51 to tilt it to one or other of its stable positions.
  • return means 70 of the nut 20 in a centered position between its two tilting positions consist of a rod 70 elastically deformable, fixed at each of its ends to the pushbutton 10 and adapted to deform towards the rear face of the pushbutton 10.
  • This rod 70 is in contact with the front face of the nut 20 at a central flat 23 so that when the nut 20 pivots, the rod 70 exerts a return torque of the nut 20 to its centered position.
  • the electrical switching device comprises means for translational movement of the pushbutton 10 in the housing 40 which comprise two connecting arms 30A, 30B (a first arm 30A and a second arm 30B), here identical, connected to each other by a pivot axis by crossing and cooperating with the housing 40 and the push button 10 to move together in the manner of scissors.
  • each connecting arm 30A, 30B has a U-shape with two lateral branches 31A.31 B linked to one another by a transverse branch 32A.32B.
  • each connecting arm 30A.30B has a U-shape with two lateral branches 31A.31 B linked to one another by a transverse branch 32A.32B.
  • one of the two lateral branches 31A, 31B of each connecting arm is pierced laterally at its center with a bore 39'A, 39'B and the other of the two lateral branches 31A.31B is on its outer face, in its center, a pin 39A.39B.
  • the two connecting arms 30A.30B are staggered relative to each other so that the pin 39A.39B of each connecting arm 30A.30B fits into the bore 39'A, 39 ' B of the other connecting arm 30A.30B, so that the two connecting arms 30A.30B can move relative to each other in the manner of scissors.
  • one of the link arms 3OB has a low end
  • the other link arm 3OA has a low end 33A connected to the casing 40 by a slide linkage 34A.42 of axis W parallel to said sliding axis W and a high end 32A linked to the pushbutton 10 by a pivot link 36A.11.
  • the free ends of the lateral branches 31A.31B of each connecting arm 30A.30B form its lower end 33A.33B and the transverse branch 32A.32B of each connecting arm 30A, 30B forms its high end 32A.32B.
  • the transverse branches 32A.32B of the connecting arms 30A.30B have a circular section and are straight. They are each bordered by a rib 37A.37B longitudinal having two notches 38A, 38B.
  • each connecting arm 30A.30B is formed in one piece by molding a plastic material so that each pin 39A.39B of pivoting, each foot 35A.35B, each post 34A, 34B and each rib 37A. 37B are formed with said corresponding connecting arm 30A, 30B.
  • the rear face of the pushbutton 10 carries two ribs 13,14 parallel and identical in each of which is formed at one end, a latching groove 11 open towards the rear by a mouthpiece 11A, intended to accommodate the portion 36A of the upper end 32A of the first connecting arm 30A located at one of the notches 38A of the rib 37A.
  • the first link arm 30A can pivot in this latching groove 11 without moving laterally, the lateral faces of the notches 38A bearing on either side of the two ribs 13,14.
  • the two ribs 13, 14 each form at their other end a sliding groove 12 open laterally and intended to receive the portion 36B of the upper end 32B of the second connecting arm 30B located at one of the notches 38B of the rib 37B.
  • the second link arm 3OB can slide in this sliding groove 12 without moving laterally, the lateral faces of the notches 38B bearing on either side of the two ribs 13,14 and sliding on them.
  • the electrical switching device For the automatic repositioning of the pushbutton 10 in the rest position when it has been moved to its depressed position, the electrical switching device comprises elastic return means 60 of the pushbutton 10 which act on the link arms 30A.30B in a direction transverse to the direction of translation of the pushbutton 10.
  • said elastic return means are compression springs 60 disposed between a side wall of the housing 40 and the corners formed by the legs 35A, 35B of the free ends of the lateral branches 31A of the first link arm 30A which slide in the groove slide 42 provided in the housing 40.
  • the compression springs are arranged between a side wall of the push button and the upper end of the second connecting arm which slides in the sliding groove provided on the push button.
  • the electrical switching device shown comprises stop means 42A limiting the deployment of the connecting arms 30A, 30B to maintain the push button 10 in the rest position.
  • said stop means 42A of the push button 10 comprise a bulge 42A disposed at the mouth of the sliding groove 42 provided on the housing 40 which cooperates with the lower end 33A of the first link arm 30A.
  • the pins 34A of the first link arm 30A are intended to come into contact with the bulges 42A to stop the push button 10 in the rest position.
  • the push button 10 does not tilt.
  • the tilting coach 51 begins to switch from one stable position to the other.
  • the initiation of this tilting causes the pivoting of the nut 20 in the opposite direction of the driver, so that the other shoulder 22 of the nut 20 is inserted between the branches of the tilting driver 51 without coming into contact. with him.
  • the nut 20 bears only on one branch of the tilting coach 51 so that it can completely rotate to its other stable position so perform the switching function of the device.
  • the translation of the pushbutton 10 is stopped when the tenons 35A of the first connecting arm 30A bear against the bottom of the sliding grooves 42 of the housing 40.
  • the return springs 60 bearing against the feet 35A of the lateral branches 31A of the first connecting arm 30A push the link arm 30A along the axis W, so that the two arms 30A, 30B, in a scissors movement, drive the pushbutton 10 to the rest position.
  • the movement of the first linking arm 30A stops when the tenons 34A of the first connecting arm 30A come into contact with the bulges 42A of the sliding grooves 42 of the casing 40.
  • the stiffness of the two return springs 60 is in fact intended to causing the pushbutton 10 to rise to its rest position while preventing said pins 34A from passing beyond the bulges 42A.
  • the present invention is not limited to the embodiment described and shown but the skilled person will be able to make any variant within his mind.

Abstract

The invention relates to an electric switching device comprising, inside a housing (40): a pivoting driver (51) that can pivot between two stable positions for bringing a moving electric contactor into or out of contact with/from a fixed electrical contactor; a push-button (10) accessible to the user; an egg insulator (20) connected to the push-button that can interact with the pivoting driver for making it pivot between the two stable positions, and; means for translationally guiding the push-button inside the housing between a pushed-in position and a position of rest. According to the invention, the translational guiding means comprise two joining members (30A, 30B) joined to one another via a pivot axis while crossing one another and interacting with the housing and the push-button for moving together in a scissor-like manner.

Description

Dispositif de commutation électrique du type "push-push" à moyens de guidage du bouton-poussoir Push-push type electrical switching device with push button guide means
DOMAINE TECHNIQUE AUQUEL SE RAPPORTE L'INVENTION La présente invention concerne de manière générale les dispositifs de commutation électrique tels que les interrupteurs et les va-et-vient.TECHNICAL FIELD TO WHICH THE INVENTION RELATES The present invention relates generally to electrical switching devices such as switches and back and forth.
Elle concerne plus particulièrement un dispositif de commutation électrique comportant dans un boîtier :It relates more particularly to an electrical switching device comprising in a housing:
- un entraîneur basculant adapté à pivoter entre deux positions stables pour mettre en contact ou hors contact un contacteur électrique mobile avec un contacteur électrique fixe,a tilting trainer adapted to pivot between two stable positions to put in contact or out of contact a mobile electric contactor with a fixed electrical contactor,
- un bouton-poussoir accessible à l'usager, - une noix solidaire du bouton-poussoir apte à coopérer avec l'entraîneur basculant pour le faire pivoter entre les deux positions stables, eta pushbutton accessible to the user; a nut integral with the pushbutton adapted to cooperate with the tilting coach to rotate it between the two stable positions, and
- des moyens de guidage en translation du bouton-poussoir dans le boîtier entre une position enfoncée et une position de repos.means for guiding the push-button in translation in the housing between a depressed position and a rest position.
ARRIÈRE-PLAN TECHNOLOGIQUE On connaît déjà des dispositifs de commutation électrique tels que précités, appelés communément interrupteur ou va-et-vient « push-push », dans lesquels chaque translation du bouton-poussoir permet de mettre en appui la noix sur un côté ou l'autre de l'entraîneur pour le faire basculer dans une position de commutation électrique. Dans de tels dispositifs déjà connus, le guidage en translation du bouton- poussoir est simplement réalisé par le glissement de sa paroi latérale sur la tranche de l'ouverture de la plaque enjoliveur qui l'accueille. Dans ces dispositifs, il est prévu un ressort de rappel compressé entre le bouton-poussoir et une partie intérieure du boîtier pour ramener le bouton-poussoir vers sa position de repos en saillie du boîtier. Généralement, ce ressort de rappel agit sur la partie centrale du bouton-poussoir suivant la direction de translation de ce dernier.BACKGROUND ART Electrical switching devices such as the above-mentioned, commonly known as a switch or push-push switch, in which each translation of the pushbutton makes it possible to bear the nut on one side or the other of the trainer to switch it into an electrical switching position. In such devices already known, the guide in translation of the push button is simply achieved by the sliding of its side wall on the edge of the opening of the trim plate which receives it. In these devices, there is provided a return spring compressed between the push button and an inner portion of the housing to return the push button to its rest position projecting from the housing. Generally, this return spring acts on the central part of the push button in the direction of translation of the latter.
L'inconvénient principal de tels dispositifs est que les moyens de guidage en translation du bouton-poussoir ne sont pas suffisants pour maintenir sa surface d'appui toujours perpendiculaire à la direction de translation du bouton-poussoir quelque soit le point d'appui de l'usager sur la surface d'appui. En effet, il peut arriver que l'usager, en appuyant sur le bouton-poussoir de manière décentrée par rapport à la partie centrale sur laquelle agit le ressort de rappel, provoque le basculement du bouton-poussoir entraînant alors une mauvaise coopération de la noix avec l'entraîneur ou même un blocage dudit bouton-poussoir dans l'ouverture qui l'accueille.The main disadvantage of such devices is that the guide means in translation of the push button are not sufficient to maintain its support surface always perpendicular to the direction of translation of the push button regardless of the support point of the push button. user on the support surface. Indeed, it may happen that the user, by pressing the pushbutton eccentrically relative to the central portion on which the return spring acts, causes the tilting of the push button thus causing a bad cooperation of the nut with the trainer or even a blockage of said push button in the opening that receives it.
OBJET DE L'INVENTIONOBJECT OF THE INVENTION
Afin de remédier à l'inconvénient précité de l'état de la technique, la présente invention propose un dispositif de commutation électrique dans lequel le guidage en translation du bouton-poussoir dans le boîtier est amélioré. Plus particulièrement, on propose selon l'invention un dispositif de commutation électrique tel que défini en introduction, dans lequel les moyens de guidage en translation comprennent deux bras de liaison liés l'un à l'autre par un axe de pivotement en se croisant et coopérant avec le boîtier et le bouton- poussoir pour se déplacer ensemble à la manière de ciseaux. Ainsi, ces deux bras lient le bouton-poussoir au boîtier en prenant appui sur chacune de ces deux pièces en plusieurs points distincts et en se déplaçant conjointement. Ils forment par conséquent une table élévatrice qui garantit le bon positionnement du bouton-poussoir lors de sa translation quelque soit la dimension du bouton-poussoir et quelque soit le point d'appui de l'effort exercé par l'utilisateur sur ce bouton. En outre, les bras de liaison confèrent au dispositif une rigidité et une robustesse indispensables à son utilisation fréquente et durable.In order to overcome the aforementioned drawback of the state of the art, the present invention proposes an electrical switching device in which the translational guidance of the pushbutton in the housing is improved. More particularly, the invention proposes an electrical switching device as defined in the introduction, in which the translational guiding means comprise two link arms connected to each other by a pivot axis while crossing each other and cooperating with the housing and the push button to move together in the manner of scissors. Thus, these two arms link the push button to the housing by supporting each of these two parts in several distinct points and moving together. They therefore form a lifting table which ensures the correct positioning of the push button during its translation regardless of the size of the push button and whatever the point of support of the effort exerted by the user on this button. In addition, the connecting arms give the device rigidity and robustness essential to its frequent and durable use.
Selon une première caractéristique avantageuse du dispositif conforme à l'invention, d'une part, l'un des bras de liaison comporte une extrémité basse liée au boîtier par une liaison pivot et une extrémité haute liée au bouton-poussoir par une liaison glissière d'axe de glissement parallèle au plan de la surface d'appui du bouton-poussoir, et, d'autre part, l'autre des bras de liaison comporte une extrémité basse liée au boîtier par une liaison glissière d'axe parallèle audit axe de glissement et une extrémité haute liée au bouton-poussoir par une liaison pivot.According to a first advantageous characteristic of the device according to the invention, on the one hand, one of the connecting arms comprises a low end connected to the casing by a pivot connection and an upper end connected to the pushbutton by a slide connection. sliding axis parallel to the plane of the support surface of the push button, and, secondly, the other of the connecting arm comprises a low end connected to the housing by a sliding connection of axis parallel to said axis of sliding and a high end connected to the push button by a pivot connection.
Ainsi, la combinaison des liaisons pivot et des liaisons glissière permet au bouton-poussoir de descendre vers sa position enfoncée le long des faces latérales du boîtier selon une simple translation sans décalage transversal. Les faces latérales du bouton-poussoir peuvent par conséquent être précisément ajustées contre la tranche de l'ouverture du boîtier accueillant le bouton-poussoir afin d'obtenir un dispositif esthétique et hermétique aux poussières. Selon une autre caractéristique avantageuse de l'invention, chaque bras de liaison présente une forme de U avec deux branches latérales liées l'une à l'autre par une branche transversale.Thus, the combination of pivot links and slide links allows the push button to descend to its depressed position along the side faces of the housing in a simple translation without transverse shift. The side faces of the push button can therefore be precisely adjusted against the edge of the opening of the housing accommodating the push button in order to obtain an aesthetic and dust-tight device. According to another advantageous characteristic of the invention, each connecting arm has a U-shape with two lateral branches connected to one another by a transverse branch.
Cette configuration en U des bras de liaison permet de libérer l'espace central du boîtier réservé au mécanisme de commutation électrique.This U-shaped configuration of the connecting arms makes it possible to release the central space of the housing reserved for the electrical switching mechanism.
Avantageusement alors, les extrémités libres des branches latérales de chaque bras de liaison forment une extrémité basse et la branche transversale de chaque bras de liaison forme une extrémité haute.Advantageously then, the free ends of the lateral branches of each connecting arm form a low end and the transverse branch of each connecting arm forms a high end.
Ainsi, les bras de liaison possèdent quatre points de contact avec le boîtier et quatre points de contact avec le bouton-poussoir, assurant par conséquent au bouton-poussoir une assise correcte sur le boîtier.Thus, the link arms have four points of contact with the housing and four points of contact with the push button, thus ensuring the push button a correct seat on the housing.
Préférentiellement, les extrémités basses des bras de liaison portant des tenons cylindriques, les tenons d'un bras s'insèrent dans un logement du boîtier alors que son extrémité haute s'insère dans une gorge de glissement du bouton- poussoir, et les tenons de l'autre bras s'insèrent dans une gorge de glissement du boîtier alors que son extrémité haute s'encliquette dans une gorge d'encliquetage du bouton-poussoir.Preferably, the lower ends of the connecting arms carrying cylindrical tenons, the tenons of an arm fit into a housing of the housing while its upper end fits into a sliding groove of the push button, and the tenons of the other arm fit into a sliding groove of the housing while its upper end snaps into a snap groove of the push button.
Avantageusement, la branche transversale de chaque bras de liaison porte une nervure pourvue de deux échancrures adaptées à maintenir latéralement chaque bras de liaison par rapport au bouton-poussoir.Advantageously, the transverse branch of each connecting arm carries a rib provided with two notches adapted to maintain laterally each connecting arm relative to the push button.
Ainsi, les faces latérales des échancrures de la nervure de chaque bras de liaison prennent appui de part et d'autre des gorges de glissement et d'encliquetage du bouton-poussoir, bloquant par conséquent en translation les bras de liaison selon l'axe de leur branche transversale. Selon une autre caractéristique avantageuse de l'invention, le dispositif comporte des moyens élastiques de rappel du bouton-poussoir en position de repos qui agissent sur les bras de liaison suivant une direction transversale à la direction de la translation du bouton-poussoir.Thus, the lateral faces of the notches of the rib of each connecting arm bear on either side of the sliding grooves and snap of the push button, thereby blocking in translation the connecting arms along the axis of their transverse branch. According to another advantageous characteristic of the invention, the device comprises elastic means for returning the push button in the rest position which act on the link arms in a direction transverse to the direction of translation of the push button.
Ainsi, lorsqu'aucun effort n'est exercé sur le bouton-poussoir, ce dernier se place automatiquement et rapidement en position de repos si bien qu'il est toujours prêt à être actionné pour provoquer la commutation électrique du mécanisme de commutation.Thus, when no effort is exerted on the push button, the latter is placed automatically and quickly in the rest position so that it is always ready to be actuated to cause the electrical switching of the switching mechanism.
Préférentiellement, lesdits moyens élastiques de rappel sont des ressorts de compression disposés entre une paroi latérale du boîtier et les extrémités libres des branches latérales d'un bras de liaison qui glissent dans la gorge de glissement prévue dans le boîtier.Preferably, said elastic return means are compression springs arranged between a side wall of the housing and the free ends lateral branches of a connecting arm which slide in the sliding groove provided in the housing.
Ainsi, l'espace au centre du dispositif réservé au mécanisme de commutation est laissé libre. Dans le dispositif selon l'invention, on tire en effet parti du fait que les extrémités basses d'un bras de liaison se déplacent dans le boîtier orthogonalement à l'axe de la translation du bouton-poussoir pour disposer les ressorts de rappel orthogonalement à cet axe de translation dans un espace ne gênant pas la mise en place du mécanisme de commutation électrique.Thus, the space in the center of the device reserved for the switching mechanism is left free. In the device according to the invention, it takes advantage indeed that the lower ends of a connecting arm move in the housing orthogonal to the axis of the translation of the push button to arrange the return springs orthogonally to this axis of translation in a space does not interfere with the establishment of the electrical switching mechanism.
Selon une variante de réalisation, les moyens élastiques de rappel sont des ressorts de compression disposés entre une paroi latérale du bouton-poussoir et l'extrémité haute du bras de liaison qui glisse dans la gorge de glissement prévue sur le bouton-poussoir.According to an alternative embodiment, the elastic return means are compression springs disposed between a side wall of the push button and the upper end of the link arm which slides in the sliding groove provided on the push button.
Selon une autre caractéristique avantageuse de l'invention, il est prévu des moyens de butée limitant le déploiement des bras de liaison pour maintenir le bouton-poussoir en position de repos.According to another advantageous characteristic of the invention, there is provided abutment means limiting the deployment of the connecting arms to maintain the push button in the rest position.
Avantageusement, lesdits moyens de butée du bouton-poussoir comportent un renflement disposé à l'embouchure de la gorge de glissement prévue sur le boîtier ou sur le bouton-poussoir et qui coopère avec une extrémité basse ou une extrémité haute d'un bras de liaison. Selon une autre caractéristique avantageuse de l'invention, la noix étant apte à prendre deux positions de basculement correspondant aux deux positions stables de l'entraîneur basculant, il est prévu des moyens de rappel de la noix en position centrée entre ces deux positions de basculement.Advantageously, said stop means of the push button comprise a bulge disposed at the mouth of the sliding groove provided on the housing or on the push button and which cooperates with a low end or a high end of a link arm . According to another advantageous characteristic of the invention, the nut being able to take two tilting positions corresponding to the two stable positions of the tilting coach, there is provided means for returning the nut in a centered position between these two tilting positions. .
Ainsi, lorsque le bouton-poussoir est en position de repos, la noix se replace automatiquement en position initiale afin de pouvoir correctement coopérer avec l'entraîneur basculant lors de la prochaine descente du bouton- poussoir.Thus, when the push button is in the rest position, the nut is automatically returned to the initial position in order to be able to cooperate properly with the tilting coach at the next descent of the push button.
DESCRIPTION DÉTAILLÉE D'UN EXEMPLE DE RÉALISATION La description qui va suivre en regard des dessins annexés donnés à titre d'exemples non limitatifs, fera bien comprendre en quoi consiste l'invention et comment elle peut être réalisée.DETAILED DESCRIPTION OF AN EXEMPLARY EMBODIMENT The following description with reference to the accompanying drawings given by way of non-limiting example will make it clear what the invention consists of and how it can be achieved.
Sur les dessins annexés :In the accompanying drawings:
- la figure 1 est une vue schématique en perspective éclatée d'un dispositif de commutation selon l'invention ; - la figure 2 est une vue schématique en perspective de moyens de guidage du bouton-poussoir du dispositif de commutation de la figure 1 ;- Figure 1 is a schematic perspective exploded view of a switching device according to the invention; FIG. 2 is a diagrammatic perspective view of push button guiding means of the switching device of FIG. 1;
- la figure 3 est une vue schématique en perspective des moyens de guidage de la figure 2 assemblés avec le bouton-poussoir du dispositif de la figure 1 ; et- Figure 3 is a schematic perspective view of the guide means of Figure 2 assembled with the push button of the device of Figure 1; and
- la figure 4 est une vue en coupe selon le plan A-A de la figure 3.- Figure 4 is a sectional view along the plane A-A of Figure 3.
Sur la figure 1 , on a représenté schématiquement un dispositif de commutation électrique. Il peut s'agir d'un interrupteur simple ou d'un va-et-vient selon le type de mécanisme de commutation 50 qui lui est associé. Dans tous les cas, ce dispositif comporte un boîtier 40 présentant quatre parois latérales qui bordent une paroi de fond ouverte en son centre par une ouverture 41 accueillant un entraîneur basculant 51 monté à pivotement sur le socle du mécanisme de commutation 50.FIG. 1 diagrammatically shows an electrical switching device. It can be a simple switch or a back and forth depending on the type of switching mechanism 50 associated with it. In all cases, this device comprises a housing 40 having four side walls which border a bottom wall open at its center by an opening 41 accommodating a rocker arm 51 pivotally mounted on the base of the switching mechanism 50.
De manière connue en soi, l'entraîneur basculant 51 est adapté à pivoter entre deux positions stables pour mettre en contact ou hors contact un contacteur électrique mobile avec un contacteur électrique fixe (non représentés).In a manner known per se, the tilting driver 51 is adapted to pivot between two stable positions to put in contact or out of contact a movable electric contactor with a fixed electrical contactor (not shown).
Le dispositif de commutation électrique comporte en outre un bouton- poussoir 10 accessible à l'usager et qui ferme la face avant du boîtier 40. Ce bouton-poussoir 10 est adapté à se translater entre une position de repos et une position enfoncée en glissant le long des parois latérales du boîtier 40.The electrical switching device further comprises a push button 10 accessible to the user and which closes the front face of the housing 40. This push button 10 is adapted to translate between a rest position and a depressed position by sliding the along the side walls of the casing 40.
Afin de coopérer avec l'entraîneur basculant 51 , le bouton-poussoir 10 porte au centre de sa face arrière une noix 20 apte à coopérer avec l'entraîneur basculant 51 pour le faire pivoter entre ses positions stables.In order to cooperate with the tilting driver 51, the pushbutton 10 carries in the center of its rear face a nut 20 adapted to cooperate with the tilting driver 51 to rotate it between its stable positions.
La noix 20 présente sur deux de ses faces latérales un pion d'attache 21 destiné à s'insérer dans une gorge d'encliquetage en saillie de la face arrière du bouton-poussoir 10. Elle est ainsi adaptée à pivoter par rapport au bouton- poussoir 10 lors de la translation de ce dernier pour prendre deux positions de basculement correspondant de manière inversée aux deux positions stables de l'entraîneur basculant 51. L'entraîneur basculant 51 se présente sous la forme d'un berceau en U avec deux branches parallèles qui comportent intérieurement un trottoir 52 ; la noix 20 présente quant à elle sur sa face arrière deux épaulements 22 destinés à prendre appui alternativement sur les trottoirs 52 des deux branches de l'entraîneur basculant 51 pour le faire basculer vers l'une ou l'autre de ses positions stables.The nut 20 has on two of its lateral faces an attachment pin 21 intended to be inserted into a latching groove projecting from the rear face of the push button 10. It is thus adapted to pivot relative to the button. 10 during the translation of the latter to take two tilting positions corresponding inversely to the two stable positions of the tilting driver 51. The tilting driver 51 is in the form of a U-shaped cradle with two parallel branches which internally comprise a sidewalk 52; the nut 20 has on its back side two shoulders 22 intended to bear alternately on the sidewalks 52 of the two branches of the tilting trainer 51 to tilt it to one or other of its stable positions.
Avantageusement, il est prévu des moyens de rappel 70 de la noix 20 en position centrée entre ses deux positions de basculement. Ces moyens de rappel consistent en une tige 70 élastiquement déformable, fixée à chacune de ses extrémités au bouton-poussoir 10 et adaptée à se déformer vers la face arrière du bouton-poussoir 10.Advantageously, there is provided return means 70 of the nut 20 in a centered position between its two tilting positions. These return means consist of a rod 70 elastically deformable, fixed at each of its ends to the pushbutton 10 and adapted to deform towards the rear face of the pushbutton 10.
Cette tige 70 est en contact avec la face avant de la noix 20 au niveau d'un méplat central 23 si bien que lorsque la noix 20 pivote, la tige 70 exerce un couple de rappel de la noix 20 vers sa position centrée.This rod 70 is in contact with the front face of the nut 20 at a central flat 23 so that when the nut 20 pivots, the rod 70 exerts a return torque of the nut 20 to its centered position.
Selon une caractéristique particulièrement avantageuse du dispositif de commutation électrique selon l'invention, il comporte des moyens de guidage en translation du bouton-poussoir 10 dans le boîtier 40 qui comprennent deux bras de liaison 30A,30B (un premier bras 3OA et un second bras 30B), ici identiques, liés l'un à l'autre par un axe de pivotement en se croisant et coopérant avec le boîtier 40 et le bouton-poussoir 10 pour se déplacer ensemble à la manière de ciseaux.According to a particularly advantageous characteristic of the electrical switching device according to the invention, it comprises means for translational movement of the pushbutton 10 in the housing 40 which comprise two connecting arms 30A, 30B (a first arm 30A and a second arm 30B), here identical, connected to each other by a pivot axis by crossing and cooperating with the housing 40 and the push button 10 to move together in the manner of scissors.
Comme le montrent plus particulièrement les figures 2 et 3, ici, chaque bras de liaison 3OA, 3OB présente une forme de U avec deux branches latérales 31A.31 B liées l'une à l'autre par une branche transversale 32A.32B. Pour réaliser la liaison à pivotement des deux bras de liaison 30A.30B enAs shown more particularly in Figures 2 and 3, here, each connecting arm 30A, 30B has a U-shape with two lateral branches 31A.31 B linked to one another by a transverse branch 32A.32B. To realize the pivotal connection of the two connecting arms 30A.30B in
U, l'une des deux branches latérales 31 A, 31 B de chaque bras de liaison est percée latéralement en son centre d'un alésage 39'A,39'B et l'autre des deux branches latérales 31A.31 B porte sur sa face extérieure, en son centre, un pion 39A.39B. Les deux bras de liaison 30A.30B sont disposés en quinconce l'un par rapport à l'autre de sorte que le pion 39A.39B de chaque bras de liaison 30A.30B s'insère dans l'alésage 39'A,39'B de l'autre bras de liaison 30A.30B, si bien que les deux bras de liaison 30A.30B peuvent se déplacer l'un par rapport à l'autre à la manière de ciseaux. D'une part, l'un des bras de liaison 3OB comporte une extrémité basseU, one of the two lateral branches 31A, 31B of each connecting arm is pierced laterally at its center with a bore 39'A, 39'B and the other of the two lateral branches 31A.31B is on its outer face, in its center, a pin 39A.39B. The two connecting arms 30A.30B are staggered relative to each other so that the pin 39A.39B of each connecting arm 30A.30B fits into the bore 39'A, 39 ' B of the other connecting arm 30A.30B, so that the two connecting arms 30A.30B can move relative to each other in the manner of scissors. On the one hand, one of the link arms 3OB has a low end
33B liée au boîtier 40 par une liaison pivot 34B,43 et une extrémité haute 32B liée au bouton-poussoir 10 par une liaison glissière 36B.12 d'axe de glissement W parallèle au plan de la surface d'appui du bouton-poussoir 10. D'autre part, l'autre bras de liaison 3OA comporte une extrémité basse 33A liée au boîtier 40 par une liaison glissière 34A.42 d'axe W parallèle audit axe de glissement W et une extrémité haute 32A liée au bouton-poussoir 10 par une liaison pivot 36A.11. Les extrémités libres des branches latérales 31A.31B de chaque bras de liaison 30A.30B forment son extrémité basse 33A.33B et la branche transversale 32A.32B de chaque bras de liaison 30A,30B forme son extrémité haute 32A.32B.33B connected to the housing 40 by a pivot connection 34B, 43 and a high end 32B connected to the push button 10 by a slide pin connection 36B.12 W parallel to the plane of the bearing surface of the push button 10 . On the other hand, the other link arm 3OA has a low end 33A connected to the casing 40 by a slide linkage 34A.42 of axis W parallel to said sliding axis W and a high end 32A linked to the pushbutton 10 by a pivot link 36A.11. The free ends of the lateral branches 31A.31B of each connecting arm 30A.30B form its lower end 33A.33B and the transverse branch 32A.32B of each connecting arm 30A, 30B forms its high end 32A.32B.
Les branches transversales 32A.32B des bras de liaison 30A.30B présentent une section circulaire et sont droites. Elle sont chacune longées par une nervure 37A.37B longitudinale présentant deux échancrures 38A,38B.The transverse branches 32A.32B of the connecting arms 30A.30B have a circular section and are straight. They are each bordered by a rib 37A.37B longitudinal having two notches 38A, 38B.
Les extrémités libres des branches latérales 31A.31B de chaque bras de liaison 30A,30B portent quant à elles chacune un pied 35A en forme de coin. Elles portent par ailleurs chacune un tenon 34A,34B tourné latéralement vers l'extérieur des branches latérales 31A,31B. Avantageusement, chaque bras de liaison 30A.30B est formé d'une seule pièce par moulage d'une matière plastique de sorte que chaque pion 39A.39B de pivotement, chaque pied 35A.35B, chaque tenon 34A,34B et chaque nervure 37A.37B viennent de formation avec ledit bras de liaison 30A, 3OB correspondant. Comme le montre plus particulièrement la figure 4, la face arrière du bouton-poussoir 10 porte deux nervures 13,14 parallèles et identiques dans chacune desquelles est formée, à une extrémité, une gorge d'encliquetage 11 ouverte vers l'arrière par une embouchure 11A, destinée à accueillir la partie 36A de l'extrémité haute 32A du premier bras de liaison 3OA située au niveau d'une des échancrures 38A de la nervure 37A. Avantageusement, le premier bras de liaison 3OA peut pivoter dans cette gorge d'encliquetage 11 sans se déplacer latéralement, les faces latérales des échancrures 38A prenant appui de part et d'autre des deux nervures 13,14.The free ends of the lateral branches 31A.31B of each connecting arm 30A, 30B each carry a foot 35A wedge-shaped. They also each carry a pin 34A, 34B turned laterally outwardly of the lateral branches 31A, 31B. Advantageously, each connecting arm 30A.30B is formed in one piece by molding a plastic material so that each pin 39A.39B of pivoting, each foot 35A.35B, each post 34A, 34B and each rib 37A. 37B are formed with said corresponding connecting arm 30A, 30B. As shown more particularly in Figure 4, the rear face of the pushbutton 10 carries two ribs 13,14 parallel and identical in each of which is formed at one end, a latching groove 11 open towards the rear by a mouthpiece 11A, intended to accommodate the portion 36A of the upper end 32A of the first connecting arm 30A located at one of the notches 38A of the rib 37A. Advantageously, the first link arm 30A can pivot in this latching groove 11 without moving laterally, the lateral faces of the notches 38A bearing on either side of the two ribs 13,14.
Les deux nervures 13,14 forment chacune à leur autre extrémité une gorge de glissement 12 ouverte latéralement et destinée à accueillir la partie 36B de l'extrémité haute 32B du second bras de liaison 3OB située au niveau d'une des échancrures 38B de la nervure 37B. Avantageusement, le second bras de liaison 3OB peut glisser dans cette gorge de glissement 12 sans se déplacer latéralement, les faces latérales des échancrures 38B prenant appui de part et d'autre des deux nervures 13,14 et coulissant sur elles.The two ribs 13, 14 each form at their other end a sliding groove 12 open laterally and intended to receive the portion 36B of the upper end 32B of the second connecting arm 30B located at one of the notches 38B of the rib 37B. Advantageously, the second link arm 3OB can slide in this sliding groove 12 without moving laterally, the lateral faces of the notches 38B bearing on either side of the two ribs 13,14 and sliding on them.
Par ailleurs, comme le montre plus particulièrement la figure 1 , il est formé dans le fond du boîtier 40, d'une part, deux logements 43 dans lesquels les tenons 34B du second bras de liaison 3OB peuvent s'insérer et pivoter, et, d'autre part, deux gorges de glissement 42 ouvertes latéralement dans lesquelles les tenons 34A du premier bras de liaison 3OA sont adaptés à glisser.Furthermore, as shown more particularly in Figure 1, it is formed in the bottom of the housing 40, on the one hand, two housings 43 in which the pins 34B of the second connecting arm 30B can be inserted and pivoted, and, on the other hand, two sliding grooves 42 laterally open in which the pins 34A of the first link arm 30A are adapted to slide.
Lorsque les bras de liaison 30A.30B sont montés dans le boîtier 40, les faces latérales extérieures des pieds 35A,35B prennent appui contre les faces intérieures des parois latérales du boîtier 40, si bien que les deux bras de liaison 30A,30B sont maintenus latéralement dans le boîtier 40.When the connecting arms 30A.30B are mounted in the housing 40, the outer lateral faces of the legs 35A, 35B bear against the inner faces of the side walls of the housing 40, so that the two connecting arms 30A, 30B are maintained. laterally in the housing 40.
Pour la remise en place automatique du bouton-poussoir 10 en position de repos lorsqu'il a été déplacé vers sa position enfoncée, le dispositif de commutation électrique comporte des moyens élastiques de rappel 60 du bouton- poussoir 10 qui agissent sur les bras de liaison 30A.30B suivant une direction transversale à la direction de la translation du bouton-poussoir 10.For the automatic repositioning of the pushbutton 10 in the rest position when it has been moved to its depressed position, the electrical switching device comprises elastic return means 60 of the pushbutton 10 which act on the link arms 30A.30B in a direction transverse to the direction of translation of the pushbutton 10.
Plus précisément, lesdits moyens élastiques de rappel sont des ressorts de compression 60 disposés entre une paroi latérale du boîtier 40 et les coins formés par les pieds 35A,35B des extrémités libres des branches latérales 31A du premier bras de liaison 3OA qui glissent dans la gorge de glissement 42 prévue dans le boîtier 40.More specifically, said elastic return means are compression springs 60 disposed between a side wall of the housing 40 and the corners formed by the legs 35A, 35B of the free ends of the lateral branches 31A of the first link arm 30A which slide in the groove slide 42 provided in the housing 40.
Bien entendu, en variante, on pourrait prévoir que les ressorts de compression soient disposés entre une paroi latérale du bouton-poussoir et l'extrémité haute du second bras de liaison qui glisse dans la gorge de glissement prévue sur le bouton-poussoir.Of course, alternatively, it could be provided that the compression springs are arranged between a side wall of the push button and the upper end of the second connecting arm which slides in the sliding groove provided on the push button.
Par ailleurs, avantageusement, le dispositif de commutation électrique représenté comporte des moyens de butée 42A limitant le déploiement des bras de liaison 30A,30B pour maintenir le bouton-poussoir 10 en position de repos.Furthermore, advantageously, the electrical switching device shown comprises stop means 42A limiting the deployment of the connecting arms 30A, 30B to maintain the push button 10 in the rest position.
Plus particulièrement, lesdits moyens de butée 42A du bouton-poussoir 10 comportent un renflement 42A disposé à l'embouchure de la gorge de glissement 42 prévue sur le boîtier 40 qui coopère avec l'extrémité basse 33A du premier bras de liaison 3OA. Ainsi, les tenons 34A du premier bras de liaison 3OA sont destinés à entrer en contact avec les renflements 42A pour arrêter le bouton- poussoir 10 en position de repos. En fonctionnement, lorsque l'utilisateur exerce une pression sur n'importe quel endroit de la face avant du bouton-poussoir 10, ce dernier descend vers sa position enfoncée. Durant cette descente et grâce au système de bras de liaison 3OA, 3OB dont le mouvement en ciseaux permet aux extrémités hautes 32A.32B des bras de liaison 3OA, 3OB de descendre de concert, le bouton- poussoir 10 ne s'incline pas. Lors de cette descente, l'extrémité basse 33A du premier bras de liaison 3OA et l'extrémité haute 32B du second bras de liaison 3OB coulissent dans leur gorge de glissement 12,42 selon les axes W1W, mettant par conséquent en pression les ressorts de rappel 60. Lors de cette descente, l'un des épaulements 22 prévus sur la noix 20 prend appui contre le trottoir 52 de la branche du berceau en U de l'entraîneur basculant 51 la plus proche du bouton-poussoir 10. Sous l'effet de l'effort exercé par l'utilisateur, l'entraîneur basculant 51 commence à basculer d'une position stable vers l'autre. L'amorce de ce basculement provoque le pivotement de la noix 20 dans le sens inverse de l'entraîneur, de sorte que l'autre épaulement 22 de la noix 20 s'insère entre les branches de l'entraîneur basculant 51 sans entrer en contact avec lui. Ainsi, durant le basculement de l'entraîneur d'une position stable à l'autre, la noix 20 n'appuie que sur une branche de l'entraîneur basculant 51 si bien que celui-ci peut complètement pivoter vers son autre position stable afin de réaliser la fonction de commutation du dispositif.More particularly, said stop means 42A of the push button 10 comprise a bulge 42A disposed at the mouth of the sliding groove 42 provided on the housing 40 which cooperates with the lower end 33A of the first link arm 30A. Thus, the pins 34A of the first link arm 30A are intended to come into contact with the bulges 42A to stop the push button 10 in the rest position. In operation, when the user exerts pressure on any location on the front face of the pushbutton 10, the latter descends to its depressed position. During this descent and thanks to the 3OA link arm system, 3OB whose scissor movement allows the upper ends 32A.32B link arms 3OA, 3OB to go down together, the push button 10 does not tilt. During this descent, the lower end 33A of the first link arm 30A and the upper end 32B of the second link arm 30B slide in their sliding groove 12,42 along the axes W 1 W, thereby putting pressure on them. return springs 60. During this descent, one of the shoulders 22 provided on the nut 20 bears against the sidewalk 52 of the U-shaped cradle of the tilting coach 51 closest to the push-button 10. Under the effect of the effort exerted by the user, the tilting coach 51 begins to switch from one stable position to the other. The initiation of this tilting causes the pivoting of the nut 20 in the opposite direction of the driver, so that the other shoulder 22 of the nut 20 is inserted between the branches of the tilting driver 51 without coming into contact. with him. Thus, during the tilting of the driver from one stable position to the other, the nut 20 bears only on one branch of the tilting coach 51 so that it can completely rotate to its other stable position so perform the switching function of the device.
La translation du bouton-poussoir 10 est arrêtée lorsque les tenons 35A du premier bras de liaison 3OA prennent appui contre le fond des gorges de glissement 42 du boîtier 40.The translation of the pushbutton 10 is stopped when the tenons 35A of the first connecting arm 30A bear against the bottom of the sliding grooves 42 of the housing 40.
Lorsque l'utilisateur lâche le bouton-poussoir 10, les ressorts de rappel 60 en appui contre les pieds 35A des branches latérales 31A du premier bras de liaison 30A poussent ce bras de liaison 3OA selon l'axe W, si bien que les deux bras de liaison 30A,30B, dans un mouvement de ciseaux, entraînent le bouton- poussoir 10 en position de repos. Le mouvement du premier bras de liaison 3OA s'arrête lorsque les tenons 34A du premier bras de liaison 3OA entrent en contact avec les renflements 42A des gorges de glissement 42 du boîtier 40. La raideur des deux ressorts de rappel 60 est en effet prévue pour provoquer la remontée du bouton-poussoir 10 vers sa position de repos tout en évitant que lesdits tenons 34A passent au-delà des renflements 42A. La présente invention n'est nullement limitée au mode de réalisation décrit et représenté mais l'homme du métier saura y apporter toute variante conforme à son esprit. When the user releases the pushbutton 10, the return springs 60 bearing against the feet 35A of the lateral branches 31A of the first connecting arm 30A push the link arm 30A along the axis W, so that the two arms 30A, 30B, in a scissors movement, drive the pushbutton 10 to the rest position. The movement of the first linking arm 30A stops when the tenons 34A of the first connecting arm 30A come into contact with the bulges 42A of the sliding grooves 42 of the casing 40. The stiffness of the two return springs 60 is in fact intended to causing the pushbutton 10 to rise to its rest position while preventing said pins 34A from passing beyond the bulges 42A. The present invention is not limited to the embodiment described and shown but the skilled person will be able to make any variant within his mind.

Claims

REVENDICATIONS
1. Dispositif de commutation électrique comportant dans un boîtier (40) :1. Electrical switching device comprising in a housing (40):
- un entraîneur basculant (51) adapté à pivoter entre deux positions stables pour mettre en contact ou hors contact un contacteur électrique mobile avec un contacteur électrique fixe,a tilting driver (51) adapted to pivot between two stable positions to put in contact or out of contact a movable electric contactor with a fixed electrical contactor,
- un bouton-poussoir (10) accessible à l'usager,a pushbutton (10) accessible to the user,
- une noix (20) solidaire du bouton-poussoir (10) apte à coopérer avec l'entraîneur basculant (51) pour le faire pivoter entre les deux positions stables, et- A nut (20) secured to the push button (10) adapted to cooperate with the tilting driver (51) to rotate between the two stable positions, and
- des moyens de guidage en translation du bouton-poussoir (10) dans le boîtier (40) entre une position enfoncée et une position de repos, caractérisé en ce que les moyens de guidage en translation comprennent deux bras de liaison (30A,30B) liés l'un à l'autre par un axe de pivotement en se croisant et coopérant avec le boîtier (40) et le bouton-poussoir (10) pour se déplacer ensemble à la manière de ciseaux. means for guiding the push-button (10) in translation in the housing (40) between a depressed position and a rest position, characterized in that the translational guiding means comprise two link arms (30A, 30B) linked to each other by a pivot axis by crossing and cooperating with the housing (40) and the push button (10) to move together in the manner of scissors.
2. Dispositif selon la revendication 1 , caractérisé en ce que, d'une part, l'un des bras de liaison (30B) comporte une extrémité basse (33B) liée au boîtier (40) par une liaison pivot (34B, 43) et une extrémité haute (32B) liée au bouton- poussoir (10) par une liaison glissière (36B.12) d'axe de glissement (W) parallèle au plan de la surface d'appui du bouton-poussoir (10), et, d'autre part, l'autre des bras de liaison (30A) comporte une extrémité basse (33A) liée au boîtier (40) par une liaison glissière (34A,42) d'axe (W) parallèle audit axe de glissement (W) et une extrémité haute (32A) liée au bouton-poussoir (10) par une liaison pivot (36A111).2. Device according to claim 1, characterized in that, firstly, one of the connecting arm (30B) has a low end (33B) connected to the housing (40) by a pivot connection (34B, 43) and a top end (32B) connected to the push-button (10) by a sliding axis sliding connection (36B.12) (W) parallel to the plane of the pressing surface of the push-button (10), and on the other hand, the other of the connecting arms (30A) has a low end (33A) connected to the housing (40) by a sliding connection (34A, 42) with axis (W) parallel to said sliding axis ( W) and a high end (32A) connected to the push button (10) by a pivot connection (36A 1 11).
3. Dispositif selon l'une des revendications 1 et 2, caractérisé en ce que chaque bras de liaison (30A.30B) présente une forme de U avec deux branches latérales (31A.31 B) liées l'une à l'autre par une branche transversale (32A.32B).3. Device according to one of claims 1 and 2, characterized in that each connecting arm (30A.30B) has a U-shape with two lateral branches (31A.31 B) connected to one another by a transverse branch (32A.32B).
4. Dispositif selon les revendications 2 et 3, caractérisé en ce que les extrémités libres des branches latérales (31A.31 B) de chaque bras de liaison (3OA, 30B) forment une extrémité basse (33A.33B) et la branche transversale (32A.32B) de chaque bras de liaison (3OA, 30B) forme une extrémité haute (32A.32B).4. Device according to claims 2 and 3, characterized in that the free ends of the lateral branches (31A.31 B) of each connecting arm (30A, 30B) form a low end (33A.33B) and the transverse branch ( 32A.32B) of each link arm (30A, 30B) forms a top end (32A.32B).
5. Dispositif selon l'une des revendications 2 à 4, caractérisé en ce que, les extrémités basses (33A.33B) des bras de liaison (30A.30B) portant des tenons (34A.34B) cylindriques, les tenons (34B) d'un bras (30B) s'insèrent dans un logement (43) du boîtier (40) alors que son extrémité haute (33B) s'insère dans une gorge de glissement (12) du bouton-poussoir (10), et les tenons (34A) de l'autre bras (30A) s'insèrent dans une gorge de glissement (42) du boîtier (40) alors que son extrémité haute (33A) s'encliquette dans une gorge d'encliquetage (11) du bouton-poussoir (10).5. Device according to one of claims 2 to 4, characterized in that the lower ends (33A.33B) of the connecting arms (30A.30B) carrying tenons (34A.34B) cylindrical, the tenons (34B) of an arm (30B) fit into a housing (43) of the housing (40) while its upper end (33B) fits into a sliding groove ( 12) of the push button (10), and the tenons (34A) of the other arm (30A) fit into a sliding groove (42) of the housing (40) while its upper end (33A) is snap into a snap groove (11) of the pushbutton (10).
6. Dispositif selon l'une des revendications 3 à 5, caractérisé en ce que la branche transversale (32A.32B) de chaque bras de liaison (30A.30B) porte une nervure (37A.37B) pourvue de deux échancrures (38A.38B) adaptées à maintenir latéralement chaque bras de liaison (30A.30B) par rapport au bouton-poussoir (10).6. Device according to one of claims 3 to 5, characterized in that the transverse branch (32A.32B) of each connecting arm (30A.30B) carries a rib (37A.37B) provided with two notches (38A. 38B) adapted to laterally hold each connecting arm (30A.30B) relative to the push button (10).
7. Dispositif selon l'une des revendications 1 à 6, caractérisé en ce qu'il comporte des moyens élastiques de rappel (60) du bouton-poussoir (10) en position de repos qui agissent sur les bras de liaison (30A,30B) suivant une direction transversale à la direction de la translation du bouton-poussoir (10).7. Device according to one of claims 1 to 6, characterized in that it comprises elastic return means (60) of the push button (10) in the rest position which act on the connecting arms (30A, 30B ) in a direction transverse to the direction of translation of the pushbutton (10).
8. Dispositif selon les revendication 4, 5 et 7, caractérisé en ce que lesdits moyens élastiques de rappel sont des ressorts de compression (60) disposés entre une paroi latérale du boîtier (40) et les extrémités libres des branches latérales (31A) d'un bras de liaison (30A) qui glissent dans la gorge de glissement (42) prévue dans le boîtier (40).8. Device according to claims 4, 5 and 7, characterized in that said elastic return means are compression springs (60) disposed between a side wall of the housing (40) and the free ends of the side branches (31A) of a link arm (30A) which slides in the slide groove (42) provided in the housing (40).
9. Dispositif selon les revendication 5 et 7, caractérisé en ce que lesdits moyens élastiques de rappel sont des ressorts de compression disposés entre une paroi latérale du bouton-poussoir et l'extrémité haute du bras de liaison qui glisse dans la gorge de glissement prévue sur le bouton-poussoir. 9. Device according to claims 5 and 7, characterized in that said elastic return means are compression springs disposed between a side wall of the push button and the upper end of the connecting arm which slides in the sliding groove provided on the push button.
10. Dispositif selon l'une des revendications 1 à 9, caractérisé en ce qu'il est prévu des moyens de butée (42A) limitant le déploiement des bras de liaison (30A.30B) pour maintenir le bouton-poussoir (10) en position de repos.10. Device according to one of claims 1 to 9, characterized in that there is provided stop means (42A) limiting the deployment of the connecting arm (30A.30B) to maintain the push button (10) in rest position.
11. Dispositif selon les revendications 5 et 10, caractérisé en ce que lesdits moyens de butée (42A) du bouton-poussoir (10) comportent un renflement (42A) disposé à l'embouchure de la gorge de glissement (42) prévue sur le boîtier (40) ou sur le bouton-poussoir et qui coopère avec une extrémité basse (33A) ou une extrémité haute d'un bras de liaison (30A).11. Device according to claims 5 and 10, characterized in that said stop means (42A) of the push button (10) comprise a bulge (42A) disposed at the mouth of the sliding groove (42) provided on the housing (40) or on the push button and which cooperates with a low end (33A) or a high end of a connecting arm (30A).
12. Dispositif selon l'une des revendications 1 à 11 , caractérisé en ce que la noix étant apte à prendre deux positions de basculement correspondant aux deux positions stables de l'entraîneur basculant (51), il est prévu des moyens de rappel (70) de la noix (20) en position centrée entre ces deux positions de basculement. 12. Device according to one of claims 1 to 11, characterized in that the nut being adapted to take two tilting positions corresponding to the two stable positions of the tilting driver (51), there is provided return means (70) of the nut (20) in a centered position between these two tilting positions.
EP06808173A 2005-10-11 2006-09-20 Push-push electric switching device having push-button guiding means Not-in-force EP1938347B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0510351A FR2891947B1 (en) 2005-10-11 2005-10-11 ELECTRIC SWITCHING DEVICE OF THE "PUSH-PUSH" TYPE WITH PUSHBUTTON GUIDING MEANS
PCT/FR2006/002151 WO2007042632A1 (en) 2005-10-11 2006-09-20 Push-push electric switching device having push-button guiding means

Publications (2)

Publication Number Publication Date
EP1938347A1 true EP1938347A1 (en) 2008-07-02
EP1938347B1 EP1938347B1 (en) 2009-09-16

Family

ID=36579499

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06808173A Not-in-force EP1938347B1 (en) 2005-10-11 2006-09-20 Push-push electric switching device having push-button guiding means

Country Status (7)

Country Link
EP (1) EP1938347B1 (en)
CN (1) CN101288139B (en)
AT (1) ATE443338T1 (en)
DE (1) DE602006009284D1 (en)
ES (1) ES2331712T3 (en)
FR (1) FR2891947B1 (en)
WO (1) WO2007042632A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8855349B2 (en) * 2011-07-27 2014-10-07 Htc Corporation Portable speaker

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4736081A (en) * 1986-06-23 1988-04-05 Eaton Corporation Mechanically operated electric pulse switch and anti-tie down control circuit using the same
JP2577359Y2 (en) * 1992-06-09 1998-07-23 ブラザー工業株式会社 Key switch device
JP3201340B2 (en) * 1993-01-06 2001-08-20 ブラザー工業株式会社 Key switch
JP3489651B2 (en) * 1997-06-30 2004-01-26 アルプス電気株式会社 Keyboard device and personal computer using the keyboard device
JPH11111107A (en) * 1997-10-06 1999-04-23 Alps Electric Co Ltd Push switch device
US6680449B1 (en) * 2002-08-07 2004-01-20 Ming-Shan Wang Press button switch
TWI246701B (en) * 2004-04-06 2006-01-01 Darfon Electronics Corp Keyboard with elevated key

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2007042632A1 *

Also Published As

Publication number Publication date
FR2891947A1 (en) 2007-04-13
WO2007042632A1 (en) 2007-04-19
FR2891947B1 (en) 2007-12-28
ES2331712T3 (en) 2010-01-13
CN101288139A (en) 2008-10-15
EP1938347B1 (en) 2009-09-16
WO2007042632A8 (en) 2007-06-07
DE602006009284D1 (en) 2009-10-29
ATE443338T1 (en) 2009-10-15
CN101288139B (en) 2010-11-17

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