EP0743663B1 - Electric switch for sideways operation - Google Patents

Electric switch for sideways operation Download PDF

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Publication number
EP0743663B1
EP0743663B1 EP96400984A EP96400984A EP0743663B1 EP 0743663 B1 EP0743663 B1 EP 0743663B1 EP 96400984 A EP96400984 A EP 96400984A EP 96400984 A EP96400984 A EP 96400984A EP 0743663 B1 EP0743663 B1 EP 0743663B1
Authority
EP
European Patent Office
Prior art keywords
thruster
electric switch
switch according
plate
support
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP96400984A
Other languages
German (de)
French (fr)
Other versions
EP0743663A1 (en
Inventor
Alain Janniere
Laurent Bouvier
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.)
ITT Industries Inc
Original Assignee
ITT Composants et Instruments 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 ITT Composants et Instruments SA filed Critical ITT Composants et Instruments SA
Publication of EP0743663A1 publication Critical patent/EP0743663A1/en
Application granted granted Critical
Publication of EP0743663B1 publication Critical patent/EP0743663B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H15/00—Switches having rectilinearly-movable operating part or parts adapted for actuation in opposite directions, e.g. slide switch
    • H01H15/02—Details
    • H01H15/06—Movable parts; Contacts mounted thereon
    • H01H15/10—Operating parts
    • H01H15/102—Operating parts comprising cam devices
    • 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
    • H01H13/48—Snap-action arrangements depending upon deformation of elastic members using buckling of disc springs
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/58—Electric connections to or between contacts; Terminals
    • H01H2001/5888—Terminals of surface mounted devices [SMD]

Definitions

  • the present invention relates to a switch electric.
  • the invention relates in particular to a switch with lateral actuation, very small, of the type comprising a contact-carrying support which delimits a housing in the substantially planar bottom of which are arranged at least two fixed electrical contacts and which receives a generally domed trigger which is deformable elastically from a rest position, according to a direction substantially perpendicular to the bottom of the housing, to establish an electrical connection between the two contacts fixed, and of the type comprising a mounted actuator sliding relative to the support, in a lateral direction parallel to the bottom of the housing, to act on the triggering, by mechanical means which transform the actuation force exerted on the pusher into a perpendicular trigger force applied to the organ release, from a rest position towards which it is recalled elastically.
  • the invention aims to remedy these drawbacks.
  • the invention proposes a switch with lateral actuation of the type mentioned above, characterized in that it includes an actuating lever mounted articulated with respect to the support around a parallel axis at the bottom of the housing, a support point of which cooperates with the triggering organ and whose point of application of the motive force by the pusher cooperates with a portion of the pusher shaped inclined ramp, and in that the lever is resiliently returned to its rest position.
  • FIG. 1 a contact carrier 10 which, according to a known concept, is constituted for essentially by a body or case 12 made by molding in insulating plastic material with a parallelepiped shape rectangle.
  • the body 10 is delimited by lateral faces 14 and 16, by a lower face 18 and by an upper face horizontal 20 in which a housing 22 opens.
  • the housing 22 is delimited by a peripheral wall 24 of rectangular outline and by a bottom 26 which is substantially planar and parallel to the upper face 20.
  • the body 12 is produced by overmolding on two conductive elements.
  • a first conductive element has one end 28 of connection, which extends outside the body 12 from a side face 16, to allow mounting of the switch on a printed circuit board (not shown), for example according to the technique of the flat transfer of components, and has a fixed contact end 30 which is arranged in the bottom 26 of the housing 22 substantially at center of the latter and slightly raised in relation to the background 26.
  • a second conductive element has one end 32 connection and a fixed contact end 34 arranged in the bottom 26 in the vicinity of the wall 24 and in relief in relation to the plane of the bottom 26.
  • the housing 22 is dimensioned to receive an organ trigger 36.
  • the member 36 is, according to a known concept, a element of generally domed conductive material which bears against the bottom 26 by its lower lateral edge 38 of rectangular outline and whose central apex 40 extends above the fixed contact 30.
  • the triggering member 36 takes support by its edge 38 on the fixed contact 34 and on a part in relief 35 from the bottom 26 of the housing 22 located substantially at the same altitude as the fixed contact 34.
  • the concavity of the triggering member 36 is turned towards the bottom 26 and the organ is likely to be deformed, against its own elasticity, according to a vertical release direction V, to establish a connection electric between the fixed contact 30 and 34.
  • the trigger suddenly changes state, beyond a determined trip, so as to give the user a tactile sensation of sound trigger.
  • the height of the member 36 is less than the depth of the housing 22 and the latter is covered by a protective and sealing film 42 which covers the upper face 20 of the support 12.
  • the film 42 is made of flexible material so as to allow to act on the member 36, the film further comprising an adhesive side ensuring its tightness with the face upper 20, and therefore the sealing of the housing 22 in which is arranged the trigger member 36.
  • Means for actuating the member 36 consisting essentially by an actuating pusher 44 and by a control plate 46 comprising a control lever 48 are interposed between the pusher 44 and the member trigger 36.
  • the control plate 46 is a metal plate produced by cutting and folding and whose rectangular outline is substantially the same dimensions as those of the support 12.
  • the plate 46 is delimited by lateral edges 50 to 54 and it has a central hole 56 which extends to the right and above the domed central part 40 of the trigger 36.
  • the plate 46 In the vicinity of its lateral edge 52, the plate 46 has a stop tab 58 which is folded vertically at right angle above the upper face 60 of the plate 46.
  • the tab 58 extends in a vertical median plane P which is the plane of symmetry of the switch design, at the exception of the arrangement of fixed contacts 30 and 34 (see figure 3).
  • the plate 46 In the vicinity of its lateral edge 50, opposite the edge 52, the plate 46 has two opposite guide tabs 62 which extend above the upper face 60 and which are arranged symmetrically on either side of the plane P.
  • control plate 46 has a control lever 48 made integrally with plate 46.
  • the lever 48 is made in the form of a blade elastically deformable comprising a fixing section 64 and an active section 66 with which the pusher 44 cooperates and which is designed to act on the triggering member 36.
  • the connecting section 64 has a profile that is substantially u-shaped uppercase lying horizontally parallel on the plane of the plate 46.
  • the section 64 has a first straight branch 68 which belongs to the body of the plate 46.
  • the straight branch 68 is extended by the branch angled 70 which extends above the upper face 60 and substantially in line with the side edge 50.
  • bent part 70 The bending of the bent part 70 is made possible thanks to two short slots 72 which extend, parallel to plane P, from edge 52.
  • the section 64 comprises a second rectilinear branch 74 parallel to branch 68 and which extends through the section active in the form of a loop 66.
  • This design allows the control blade to behave much like a recessed beam likely to flex transversely to constitute a lever pivoting around an axis X-X located substantially in the connection zone between branches 70 and 74.
  • the X-X axis is substantially parallel to the upper face 60 of plate 46 and perpendicular to the horizontal direction H for lateral sliding of the pusher 44.
  • the active part 66 is a loop comprising a first curved portion 76, from branch 74 whose convexity is provided to cooperate with the pusher 44 and for constitute the point of application of the actuating force on lever 48.
  • the active section 66 comprises a second portion curved 78 arranged opposite the hole 56, in the plane of the plate 46, and which constitutes the fulcrum of the lever 48 capable of cooperating with the central part 40 of the member trigger 36.
  • the loop 66 ends with an end edge 80 arranged substantially opposite the face 75 of the branch 74 and close to it.
  • the pusher 44 is a molded piece of material plastic of general rectangular shape that is rectangular bounded by a lower face 82 which bears on the face upper 60 of the control plate 46, one side parallel upper 84, two longitudinal side faces 86, by a lateral actuation face 88 and by a face end 90.
  • the width separating the faces 86 is such that the body of the pusher is guided in sliding between the guide tabs 62 of plate 46.
  • the end portion 90 of the pusher 44 has a central opening notch 92 which is delimited longitudinally by a ramp 94 inclined at about 45 ° and which is designed to cooperate with the curved portion 76 of the loop 66 of lever 48.
  • a longitudinal groove or slot 96 is formed in the underside 82 of pusher 44 and it receives the tab of stop 58 of plate 46.
  • the groove 96 is delimited longitudinally by an edge end 98 with which the tab 58 is in abutment to define the rest position of pusher 44 to which it is called back elastically by the lever 48 which acts on the ramp 94.
  • the groove 96 is also delimited by its edge opposite 100 with which the tab 58 cooperates to limit the actuating stroke of pusher 44, from right to left considering the figures.
  • the set of components 10, 42, 46 and 44 is kept stacked vertically and assembled by a cover 102 produced in the form of a cut and folded sheet metal part.
  • the hood has an upper horizontal wall flat, full and rectangular 104 which extends above the upper face 84 of pusher 44 and above the plate 46.
  • the upper wall 104 is continuous and allows a easy gripping, for example by suction, of the switch for its precise and automated positioning on a card printed circuit, despite the very small dimensions of the switch.
  • the wall 104 is extended vertically by two walls longitudinal sides 106 which extend opposite the edges 54 of the plate 46 and facing the side faces 16 of the contact holder support.
  • the upper wall 104 also extends by two transverse vertical side walls 108 which extend in looking at the edges 50 and 52 of the plate 46 and facing the lateral faces 14 of the contact carrier support 10.
  • the walls 108 each have a cutout central 110 for the passage of the body of the pusher 44, which extends vertically to the bottom edge 112.
  • the vertical and parallel edges 114 of the cutout 110 are also cut to form two pairs of legs 116, 118 which are slightly folded transversely towards inside the cover 102.
  • the lower tabs 118 allow the cover to be crimped 102 in the position mounted on the contact carrier 10, of which the body 12 comprises, in its lateral faces 14, notches 120 which receive the legs 118.
  • the lower edges 122 of the legs 116 cooperate with the portions facing the upper face 60 of the plate 46 to keep the latter pressed vertically against the upper face 20 of the body 12, with interposition of the film 42.
  • the user acts on the pusher 44 by directly or indirectly applying a actuation force on its face 88 in the lateral direction sliding H, from right to left.
  • the pusher 44 slides to its position of trigger illustrated in Figure 6.
  • the blade 48 deforms elastically and the section curved 78 moves vertically, in direction V and at through hole 56, to act on the central part 40 of the dome 36.
  • the action on the triggering member 36 causes the change of state illustrated in Figure 6 in which it establishes an electrical connection between the fixed contacts 30 and 34 with a strong transmission of the tactile effect due to its abrupt sound change of state.
  • the actuation overtravel therefore does not cause deterioration of the member 36 because the loop 66 has a inherent capacity for elastic deformation.
  • the blade 48 restores the energy it stored during actuation to return to its resting state, by pivoting globally around the X-X axis counterclockwise, and for push pusher 44 from left to right due to the arrangement of the ramp 94.
  • the design of the switch according to the invention is particularly compact.
  • Component assembly and positioning relative moving parts are particularly simple the made of the design of the control plate 46.
  • the central part 40 of the triggering member 36 can be curved to present a complementary profile that of the curved section 78 of the blade 48.

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  • Push-Button Switches (AREA)

Description

La présente invention concerne un commutateur électrique.The present invention relates to a switch electric.

L'invention concerne notamment un commutateur à actionnement latéral, de très petites dimensions, du type comportant un support porte-contacts qui délimite un logement dans le fond sensiblement plan duquel sont disposés au moins deux contacts électriques fixes et qui reçoit un organe de déclenchement de forme générale bombée qui est déformable élastiquement à partir d'une position de repos, selon une direction sensiblement perpendiculaire au fond du logement, pour établir une liaison électrique entre les deux contacts fixes, et du type comportant un poussoir d'actionnement monté coulissant par rapport au support, selon une direction latérale parallèle au fond du logement, pour agir sur l'organe de déclenchement, par l'intermédiaire de moyens mécaniques qui transforment l'effort d'actionnement exercé sur le poussoir en un effort perpendiculaire de déclenchement appliqué à l'organe de déclenchement, à partir d'une position de repos vers laquelle il est rappelé élastiquement.The invention relates in particular to a switch with lateral actuation, very small, of the type comprising a contact-carrying support which delimits a housing in the substantially planar bottom of which are arranged at least two fixed electrical contacts and which receives a generally domed trigger which is deformable elastically from a rest position, according to a direction substantially perpendicular to the bottom of the housing, to establish an electrical connection between the two contacts fixed, and of the type comprising a mounted actuator sliding relative to the support, in a lateral direction parallel to the bottom of the housing, to act on the triggering, by mechanical means which transform the actuation force exerted on the pusher into a perpendicular trigger force applied to the organ release, from a rest position towards which it is recalled elastically.

On connaít un exemple d'un tel commutateur décrit et représenté dans le document JP-A-02.195.616 dans lequel les moyens de transformation de la direction latérale de l'effort d'actionnement sont constitués par une partie articulée du poussoir qui coopère avec une rampe formée par découpe dans la paroi supérieure d'un capot du commutateur.We know an example of such a switch described and represented in document JP-A-02.195.616 in which the means for transforming the lateral direction of the force of actuation consist of an articulated part of the pusher which cooperates with a ramp formed by cutting in the upper wall of a switch cover.

Cette conception n'est pas satisfaisante dans la mesure où la découpe dans le capot empêche une préhension aisée par aspiration du commutateur, notamment lors des opérations de report à plat sur une carte à circuit imprimé.This design is not satisfactory to the extent where the cut-out in the cover prevents easy gripping by suction of the switch, especially during operations of transfer to flat on a printed circuit board.

De plus, la réalisation du poussoir avec une partie articulée reliée au corps du poussoir par une portion amincie formant charnière d'articulation est délicate et elle nécessite d'assurer un guidage très précis du poussoir.In addition, the realization of the pusher with a part articulated connected to the body of the pusher by a thinned portion forming articulation hinge is delicate and it requires ensure very precise guidance of the pusher.

L'invention a pour but de remédier à ces inconvénients.The invention aims to remedy these drawbacks.

Dans ce but, l'invention propose un commutateur à actionnement latéral du type mentionné précédemment, caractérisé en ce qu'il comporte un levier d'actionnement monté articulé par rapport au support autour d'un axe parallèle au fond du logement, dont un point d'appui coopère avec l'organe de déclenchement et dont le point d'application de la force motrice par le poussoir coopère avec une portion du poussoir en forme de rampe inclinée, et en ce que le levier est rappelé élastiquement vers sa position de repos.To this end, the invention proposes a switch with lateral actuation of the type mentioned above, characterized in that it includes an actuating lever mounted articulated with respect to the support around a parallel axis at the bottom of the housing, a support point of which cooperates with the triggering organ and whose point of application of the motive force by the pusher cooperates with a portion of the pusher shaped inclined ramp, and in that the lever is resiliently returned to its rest position.

Selon d'autres caractéristiques de l'invention :

  • l'axe de pivotement du levier est perpendiculaire à la direction de coulissement du poussoir ;
  • le levier est réalisé sous la forme d'une lame métallique déformable élastiquement dont une extrémité est fixée par rapport au support, et qui s'étend au-dessus de l'organe de déclenchement ;
  • la lame comporte un tronçon de fixation qui se prolonge par un tronçon actif en forme de boucle dont une portion coopère avec la rampe du poussoir et dont une portion coopère avec la partie centrale en regard de l'organe de déclenchement ;
  • le tronçon de fixation présente un profil en U dont une branche rectiligne est fixée sur le support et dont l'autre branche rectiligne s'étend sensiblement parallèlement au fond du logement et se prolonge par le tronçon actif en forme de boucle qui est agencé en regard de la branche coudée du tronçon de fixation et au-dessus de l'organe de déclenchement;
  • la lame est réalisée en une seule pièce avec une plaque qui recouvre la face supérieure du support porte-contacts dans laquelle est formé le logement et qui comporte une ouverture agencée en regard de la partie centrale de l'organe de déclenchement pour le passage du tronçon actif de la lame ;
  • la branche rectiligne de fixation de la lame appartient au corps de la plaque et se prolonge au-dessus de cette dernière par la branche coudée du tronçon de fixation en U ;
  • le poussoir est monté coulissant sur la face supérieure de la plaque ;
  • la face supérieure de la plaque comporte des pattes de guidage en coulissement du poussoir et des moyens de butée qui limitent les déplacements du poussoir par rapport à la plaque ;
  • les moyens de butée comporte une patte de butée qui est reçue en coulissement dans une fente longitudinale formée dans la face inférieure du poussoir en appui sur la plaque et qui est susceptible de coopérer avec les extrémités opposées de la fente pour déterminer la position de repos du poussoir et la course maximale d'actionnement du poussoir ;
  • le commutateur comporte un capot dont une paroi supérieure pleine s'étend au-dessus du poussoir, parallèlement au fond du logement, et dont des faces latérales s'étendent verticalement le long des bords latéraux de la plaque et le long des faces latérales du support porte-contacts;
  • le capot est réalisé en tôle découpée et pliée et certaines de ses faces latérales comportent des paires de pattes transversales entre lesquelles le corps du support porte-contacts et la plaque sont immobilisés verticalement l'un par rapport à l'autre.
According to other characteristics of the invention:
  • the pivot axis of the lever is perpendicular to the sliding direction of the pusher;
  • the lever is produced in the form of an elastically deformable metal blade, one end of which is fixed relative to the support, and which extends above the triggering member;
  • the blade comprises a fixing section which is extended by an active section in the form of a loop, a portion of which cooperates with the ramp of the pusher and a portion of which cooperates with the central part opposite the triggering member;
  • the fixing section has a U-shaped profile, one straight branch of which is fixed on the support and the other straight branch of which extends substantially parallel to the bottom of the housing and is extended by the active section in the form of a loop which is arranged opposite of the bent branch of the fixing section and above the triggering member;
  • the blade is made in one piece with a plate which covers the upper face of the contact carrier in which the housing is formed and which has an opening arranged opposite the central part of the triggering member for the passage of the section active blade;
  • the straight blade attachment branch belongs to the body of the plate and extends above the latter by the bent branch of the U-shaped attachment section;
  • the pusher is slidably mounted on the upper face of the plate;
  • the upper face of the plate has guide tabs in sliding of the pusher and stop means which limit the displacements of the pusher relative to the plate;
  • the abutment means comprises an abutment tab which is received in sliding in a longitudinal slot formed in the underside of the pusher bearing on the plate and which is capable of cooperating with the opposite ends of the slot to determine the rest position of the pusher and the maximum actuation stroke of the pusher;
  • the switch comprises a cover, a solid upper wall of which extends above the pusher, parallel to the bottom of the housing, and whose lateral faces extend vertically along the lateral edges of the plate and along the lateral faces of the support contact holders;
  • the cover is made of cut and folded sheet metal and some of its lateral faces include pairs of transverse tabs between which the body of the contact carrier and the plate are immobilized vertically relative to one another.

D'autres caractéristiques et avantages de l'invention apparaítront à la lecture de la description détaillée qui suit pour la compréhension de laquelle on se reportera aux dessins annexés dans lesquels :

  • La figure 1 est une vue en perspective éclatée des différents composants d'un commutateur à actionnement latéral réalisé conformément aux enseignements de l'invention;
  • la figure 2 est une vue en perspective et à plus grande échelle du commutateur en position assemblée ;
  • la figure 3 est une vue à grande échelle, en section selon la ligne 3-3 de la figure 2, du support porte-contacts du commutateur ;
  • la figure 4 est vue à grande échelle et en section par le plan vertical médian P de la figure 2, qui illustre une partie de détail de la lame de commande de l'organe de déclenchement ;
  • la figure 5 est une vue en section selon la ligne 5-5 de la figure 2 qui illustre le poussoir en cas de repos ;
  • la figure 6 est une vue similaire à celle de la figure 5 qui illustre le commutateur en position de déclenchement ; et
  • la figure 7 est une vue similaire à celle des figures 5 et 6 qui illustre le commutateur en position de surcourse d'actionnement.
Other characteristics and advantages of the invention will appear on reading the detailed description which follows for the understanding of which reference will be made to the appended drawings in which:
  • Figure 1 is an exploded perspective view of the various components of a side operated switch made in accordance with the teachings of the invention;
  • Figure 2 is a perspective view on a larger scale of the switch in the assembled position;
  • Figure 3 is an enlarged view, in section along line 3-3 of Figure 2, of the contact carrier of the switch;
  • FIG. 4 is seen on a large scale and in section through the vertical median plane P of FIG. 2, which illustrates a part of detail of the control blade of the triggering member;
  • Figure 5 is a sectional view along line 5-5 of Figure 2 which illustrates the pusher in case of rest;
  • Figure 6 is a view similar to that of Figure 5 which illustrates the switch in the release position; and
  • Figure 7 is a view similar to that of Figures 5 and 6 which illustrates the switch in the actuation overtravel position.

On a représenté sur la figure 1 un support porte-contacts 10 qui, selon une conception connue, est constitué pour l'essentiel par un corps ou boítier 12 réalisé par moulage en matière plastique isolante et de forme parallélépipédique rectangle.There is shown in Figure 1 a contact carrier 10 which, according to a known concept, is constituted for essentially by a body or case 12 made by molding in insulating plastic material with a parallelepiped shape rectangle.

Le corps 10 est délimité par des faces latérales 14 et 16, par une face inférieure 18 et par une face supérieure horizontale 20 dans laquelle s'ouvre un logement 22. The body 10 is delimited by lateral faces 14 and 16, by a lower face 18 and by an upper face horizontal 20 in which a housing 22 opens.

Le logement 22 est délimité par une paroi périphérique 24 de contour rectangulaire et par un fond 26 qui est sensiblement plan et parallèle à la face supérieure 20.The housing 22 is delimited by a peripheral wall 24 of rectangular outline and by a bottom 26 which is substantially planar and parallel to the upper face 20.

Le corps 12 est réalisé par surmoulage sur deux éléments conducteurs.The body 12 is produced by overmolding on two conductive elements.

Un premier élément conducteur comporte une extrémité 28 de raccordement, qui s'étend à l'extérieur du corps 12 depuis une face latérale 16, pour permettre le montage du commutateur sur une carte à circuit imprimé (non représentée), par exemple selon la technique du report à plat des composants, et comporte une extrémité de contact fixe 30 qui est agencée dans le fond 26 du logement 22 sensiblement au centre de ce dernier et légèrement en relief par rapport au fond 26.A first conductive element has one end 28 of connection, which extends outside the body 12 from a side face 16, to allow mounting of the switch on a printed circuit board (not shown), for example according to the technique of the flat transfer of components, and has a fixed contact end 30 which is arranged in the bottom 26 of the housing 22 substantially at center of the latter and slightly raised in relation to the background 26.

Un second élément conducteur comporte une extrémité 32 de raccordement et une extrémité de contact fixe 34 agencée dans le fond 26 au voisinage de la paroi 24 et en relief par rapport au plan du fond 26.A second conductive element has one end 32 connection and a fixed contact end 34 arranged in the bottom 26 in the vicinity of the wall 24 and in relief in relation to the plane of the bottom 26.

Le logement 22 est dimensionné pour recevoir un organe de déclenchement 36.The housing 22 is dimensioned to receive an organ trigger 36.

L'organe 36 est, selon une conception connue, un élément en matériau conducteur de forme générale bombée qui prend appui contre le fond 26 par son bord latéral inférieur 38 de contour rectangulaire et dont le sommet central 40 s'étend au-dessus du contact fixe 30.The member 36 is, according to a known concept, a element of generally domed conductive material which bears against the bottom 26 by its lower lateral edge 38 of rectangular outline and whose central apex 40 extends above the fixed contact 30.

Plus précisément, l'organe de déclenchement 36 prend appui par son bord 38 sur le contact fixe 34 et sur une partie en relief 35 du fond 26 du logement 22 située sensiblement à la même altitude que le contact fixe 34.More specifically, the triggering member 36 takes support by its edge 38 on the fixed contact 34 and on a part in relief 35 from the bottom 26 of the housing 22 located substantially at the same altitude as the fixed contact 34.

La concavité de l'organe de déclenchement 36 est tournée vers le fond 26 et l'organe est susceptible d'être déformé, à l'encontre de son élasticité propre, selon une direction verticale de déclenchement V, pour établir une liaison électrique entre le contact fixe 30 et 34. L'organe de déclenchement change d'état de manière brusque, au-delà d'une course déterminée de déclenchement, de manière à transmettre à l'utilisateur une sensation tactile de son déclenchement.The concavity of the triggering member 36 is turned towards the bottom 26 and the organ is likely to be deformed, against its own elasticity, according to a vertical release direction V, to establish a connection electric between the fixed contact 30 and 34. The trigger suddenly changes state, beyond a determined trip, so as to give the user a tactile sensation of sound trigger.

En position de repos, la hauteur de l'organe 36 est inférieure à la profondeur du logement 22 et ce dernier est recouvert par un film de protection et d'étanchéité 42 qui recouvre la face supérieure 20 du support 12.In the rest position, the height of the member 36 is less than the depth of the housing 22 and the latter is covered by a protective and sealing film 42 which covers the upper face 20 of the support 12.

Le film 42 est réalisé en matériau souple de manière à permettre d'agir sur l'organe 36, le film comportant en outre une face adhésive assurant son étanchéité avec la face supérieure 20, et donc l'étanchéité du logement 22 dans lequel est disposé l'organe de déclenchement 36.The film 42 is made of flexible material so as to allow to act on the member 36, the film further comprising an adhesive side ensuring its tightness with the face upper 20, and therefore the sealing of the housing 22 in which is arranged the trigger member 36.

Des moyens d'actionnement de l'organe 36 constitués pour l'essentiel par un poussoir 44 d'actionnement et par une plaque de commande 46 comportant un levier de commande 48 sont interposés entre le poussoir 44 et l'organe de déclenchement 36.Means for actuating the member 36 consisting essentially by an actuating pusher 44 and by a control plate 46 comprising a control lever 48 are interposed between the pusher 44 and the member trigger 36.

La plaque de commande 46 est une plaque métallique réalisée par découpe et pliage et dont le contour rectangulaire est sensiblement de mêmes dimensions que celles du support 12.The control plate 46 is a metal plate produced by cutting and folding and whose rectangular outline is substantially the same dimensions as those of the support 12.

La plaque 46 est délimitée par des bords latéraux 50 à 54 et elle comporte un trou central 56 qui s'étend au droit et au-dessus de la partie centrale bombée 40 de l'organe de déclenchement 36.The plate 46 is delimited by lateral edges 50 to 54 and it has a central hole 56 which extends to the right and above the domed central part 40 of the trigger 36.

Au voisinage de son bord latéral 52, la plaque 46 comporte une patte de butée 58 qui est repliée verticalement à angle droit au-dessus de la face supérieure 60 de la plaque 46. In the vicinity of its lateral edge 52, the plate 46 has a stop tab 58 which is folded vertically at right angle above the upper face 60 of the plate 46.

La patte 58 s'étend dans un plan vertical médian P qui est le plan de symétrie de la conception du commutateur, à l'exception de la disposition des contacts fixes 30 et 34 (voir figure 3).The tab 58 extends in a vertical median plane P which is the plane of symmetry of the switch design, at the exception of the arrangement of fixed contacts 30 and 34 (see figure 3).

Au voisinage de son bord latéral 50, opposé au bord 52, la plaque 46 comporte deux pattes de guidage opposées 62 qui s'étendent au-dessus de la face supérieure 60 et qui sont agencées symétriquement de part et d'autre du plan P.In the vicinity of its lateral edge 50, opposite the edge 52, the plate 46 has two opposite guide tabs 62 which extend above the upper face 60 and which are arranged symmetrically on either side of the plane P.

Conformément aux enseignements de l'invention, la plaque de commande 46 comporte un levier de commande 48 réalisé venu de matière avec la plaque 46.In accordance with the teachings of the invention, the control plate 46 has a control lever 48 made integrally with plate 46.

Le levier 48 est réalisé sous la forme d'une lame déformable élastiquement comportant un tronçon de fixation 64 et un tronçon actif 66 avec lequel coopère le poussoir 44 et qui est conçu pour agir sur l'organe de déclenchement 36.The lever 48 is made in the form of a blade elastically deformable comprising a fixing section 64 and an active section 66 with which the pusher 44 cooperates and which is designed to act on the triggering member 36.

Le tronçon de liaison 64 présente un profil sensiblement en forme de U majuscule couché horizontalement parallèlement au plan de la plaque 46.The connecting section 64 has a profile that is substantially u-shaped uppercase lying horizontally parallel on the plane of the plate 46.

Le tronçon 64 comporte une première branche rectiligne 68 qui appartient au corps de la plaque 46.The section 64 has a first straight branch 68 which belongs to the body of the plate 46.

La branche rectiligne 68 se prolonge par la branche coudée 70 qui s'étend au-dessus de la face supérieure 60 et sensiblement au droit du bord latéral 50.The straight branch 68 is extended by the branch angled 70 which extends above the upper face 60 and substantially in line with the side edge 50.

Le pliage de la partie coudée 70 est rendue possible grâce à deux fentes de courte longueur 72 qui s'étendent, parallèlement au plan P, depuis le bord 52.The bending of the bent part 70 is made possible thanks to two short slots 72 which extend, parallel to plane P, from edge 52.

Le tronçon 64 comporte une seconde branche rectiligne 74 parallèle à la branche 68 et qui se prolonge par le tronçon actif en forme de boucle 66.The section 64 comprises a second rectilinear branch 74 parallel to branch 68 and which extends through the section active in the form of a loop 66.

Cette conception permet à la lame de commande de se comporter sensiblement comme une poutre encastrée susceptible de fléchir transversalement pour constituer un levier pivotant autour d'un axe X-X situé sensiblement dans la zone de raccordement entre les branches 70 et 74.This design allows the control blade to behave much like a recessed beam likely to flex transversely to constitute a lever pivoting around an axis X-X located substantially in the connection zone between branches 70 and 74.

L'axe X-X est sensiblement parallèle à la face supérieure 60 de la plaque 46 et perpendiculaire à la direction horizontale H de coulissement latéral du poussoir 44.The X-X axis is substantially parallel to the upper face 60 of plate 46 and perpendicular to the horizontal direction H for lateral sliding of the pusher 44.

La partie active 66 est une boucle comportant une première portion incurvée 76, à partir de la branche 74 dont la convexité est prévue pour coopérer avec le poussoir 44 et pour constituer le point d'application de la force d'actionnement sur le levier 48.The active part 66 is a loop comprising a first curved portion 76, from branch 74 whose convexity is provided to cooperate with the pusher 44 and for constitute the point of application of the actuating force on lever 48.

Le tronçon actif 66 comporte une seconde portion incurvée 78 agencée en regard du trou 56, dans le plan de la plaque 46, et qui constitue le point d'appui du levier 48 susceptible de coopérer avec la partie centrale 40 de l'organe de déclenchement 36.The active section 66 comprises a second portion curved 78 arranged opposite the hole 56, in the plane of the plate 46, and which constitutes the fulcrum of the lever 48 capable of cooperating with the central part 40 of the member trigger 36.

Enfin, la boucle 66 se termine par un bord d'extrémité 80 agencé sensiblement en regard de la face 75 de la branche 74 et à proximité de cette dernière.Finally, the loop 66 ends with an end edge 80 arranged substantially opposite the face 75 of the branch 74 and close to it.

Le poussoir 44 est une pièce moulée en matière plastique de forme général parallélépipédique rectangle qui est délimitée par une face inférieure 82 qui prend appui sur la face supérieure 60 de la plaque de commande 46, une face supérieure parallèle 84, deux faces latérales longitudinales 86, par une face latérale d'actionnement 88 et par une face d'extrémité 90.The pusher 44 is a molded piece of material plastic of general rectangular shape that is rectangular bounded by a lower face 82 which bears on the face upper 60 of the control plate 46, one side parallel upper 84, two longitudinal side faces 86, by a lateral actuation face 88 and by a face end 90.

La largeur séparant les faces 86 est telle que le corps du poussoir est guidé en coulissement entre les pattes de guidage 62 de la plaque 46.The width separating the faces 86 is such that the body of the pusher is guided in sliding between the guide tabs 62 of plate 46.

La partie d'extrémité 90 du poussoir 44 comporte une encoche centrale débouchante 92 qui est délimitée longitudinalement par une rampe 94 inclinée à environ 45° et qui est prévue pour coopérer avec la portion incurvée 76 de la boucle 66 du levier 48.The end portion 90 of the pusher 44 has a central opening notch 92 which is delimited longitudinally by a ramp 94 inclined at about 45 ° and which is designed to cooperate with the curved portion 76 of the loop 66 of lever 48.

Une rainure ou fente longitudinale 96 est formée dans la face inférieure 82 du poussoir 44 et elle reçoit la patte de butée 58 de la plaque 46.A longitudinal groove or slot 96 is formed in the underside 82 of pusher 44 and it receives the tab of stop 58 of plate 46.

La rainure 96 est délimitée longitudinalement par un bord d'extrémité 98 avec lequel la patte 58 est en butée pour définir la position de repos du poussoir 44 vers laquelle il est rappelé élastiquement par le levier 48 qui agit sur la rampe 94.The groove 96 is delimited longitudinally by an edge end 98 with which the tab 58 is in abutment to define the rest position of pusher 44 to which it is called back elastically by the lever 48 which acts on the ramp 94.

La rainure 96 est également délimitée par son bord opposé 100 avec lequel coopère la patte 58 pour limiter la course d'actionnement du poussoir 44, de la droite vers la gauche en considérant les figures.The groove 96 is also delimited by its edge opposite 100 with which the tab 58 cooperates to limit the actuating stroke of pusher 44, from right to left considering the figures.

L'ensemble des composants 10, 42, 46 et 44 est maintenu empilé verticalement et assemblé par un capot 102 réalisé sous la forme d'une pièce en tôle découpée et pliée.The set of components 10, 42, 46 and 44 is kept stacked vertically and assembled by a cover 102 produced in the form of a cut and folded sheet metal part.

Le capot comporte une paroi horizontale supérieure plane, pleine et rectangulaire 104 qui s'étend au-dessus de la face supérieure 84 du poussoir 44 et au-dessus de la plaque 46.The hood has an upper horizontal wall flat, full and rectangular 104 which extends above the upper face 84 of pusher 44 and above the plate 46.

La paroi supérieure 104 est continue et elle permet une préhension aisée, par exemple par aspiration, du commutateur pour son positionnement précis et automatisé sur une carte à circuit imprimé, et ceci malgré les très petites dimensions du commutateur.The upper wall 104 is continuous and allows a easy gripping, for example by suction, of the switch for its precise and automated positioning on a card printed circuit, despite the very small dimensions of the switch.

La paroi 104 se prolonge verticalement par deux parois latérales longitudinales 106 qui s'étendent en regard des bords 54 de la plaque 46 et en regard des faces latérales 16 du support porte-contacts.The wall 104 is extended vertically by two walls longitudinal sides 106 which extend opposite the edges 54 of the plate 46 and facing the side faces 16 of the contact holder support.

La paroi supérieur 104 se prolonge également par deux parois latérales verticales transversales 108 qui s'étendent en regard des bords 50 et 52 de la plaque 46 et en regard des faces latérales 14 du support porte-contacts 10.The upper wall 104 also extends by two transverse vertical side walls 108 which extend in looking at the edges 50 and 52 of the plate 46 and facing the lateral faces 14 of the contact carrier support 10.

Les parois 108 comportent chacune une découpe centrale 110 pour le passage du corps du poussoir 44, qui s'étend verticalement jusqu'au bord inférieur 112.The walls 108 each have a cutout central 110 for the passage of the body of the pusher 44, which extends vertically to the bottom edge 112.

Les bords verticaux et parallèles 114 de la découpe 110 sont également découpés pour former deux paires de pattes 116, 118 qui sont légèrement rabattues transversalement vers l'intérieur du capot 102.The vertical and parallel edges 114 of the cutout 110 are also cut to form two pairs of legs 116, 118 which are slightly folded transversely towards inside the cover 102.

Les pattes inférieures 118 permettent de sertir le capot 102 en position montée sur le support porte-contacts 10 dont le corps 12 comporte, dans ses faces latérales 14, des encoches 120 qui reçoivent les pattes 118.The lower tabs 118 allow the cover to be crimped 102 in the position mounted on the contact carrier 10, of which the body 12 comprises, in its lateral faces 14, notches 120 which receive the legs 118.

Les bords inférieurs 122 des pattes 116 coopèrent avec les portions en vis-à-vis de la face supérieure 60 de la plaque 46 pour maintenir cette dernière plaquée verticalement contre la face supérieure 20 du corps 12, avec interposition du film 42.The lower edges 122 of the legs 116 cooperate with the portions facing the upper face 60 of the plate 46 to keep the latter pressed vertically against the upper face 20 of the body 12, with interposition of the film 42.

On décrira maintenant le mode de fonctionnement du commutateur en se reportant aux figures 5 à 7.We will now describe the operating mode of the switch referring to Figures 5 to 7.

Dans la position de repos illustrée à la figure 5, le commutateur est en position de repos et l'organe de déclenchement 36 est à l'état libre.In the rest position illustrated in Figure 5, the switch is in the rest position and the trigger 36 is in the free state.

A partir de cette position de repos, l'utilisateur agit sur le poussoir 44 en lui appliquant directement ou indirectement un effort d'actionnement sur sa face 88 selon la direction latérale de coulissement H, de la droite vers la gauche.From this rest position, the user acts on the pusher 44 by directly or indirectly applying a actuation force on its face 88 in the lateral direction sliding H, from right to left.

Le poussoir 44 coulisse jusqu'à sa position de déclenchement illustrée à la figure 6.The pusher 44 slides to its position of trigger illustrated in Figure 6.

Au cours de ce coulissement le levier 48 pivote dans le sens horaire sensiblement autour de l'axe X-X. During this sliding the lever 48 pivots in the clockwise substantially around the X-X axis.

La lame 48 se déforme élastiquement et le tronçon incurvé 78 se déplace verticalement, selon la direction V et à travers le trou 56, pour venir agir sur la partie centrale 40 du dôme 36.The blade 48 deforms elastically and the section curved 78 moves vertically, in direction V and at through hole 56, to act on the central part 40 of the dome 36.

L'action sur l'organe de déclenchement 36 provoque le changement d'état illustré à la figure 6 dans lequel il établit une liaison électrique entre les contacts fixes 30 et 34 avec une transmission forte de l'effet tactile du à son brusque changement d'état.The action on the triggering member 36 causes the change of state illustrated in Figure 6 in which it establishes an electrical connection between the fixed contacts 30 and 34 with a strong transmission of the tactile effect due to its abrupt sound change of state.

Si l'on poursuit l'application d'un effort d'actionnement au-delà de la position de commutation illustrée à la figure 6, la course du poussoir 44 est limitée par la patte de butée 58 qui vient en butée contre le bord d'extrémité 100 comme cela est illustré à la figure 7.If the application of an actuating force is continued beyond the switching position illustrated in Figure 6, the stroke of the pusher 44 is limited by the stop tab 58 which abuts against the end edge 100 as it is illustrated in figure 7.

La surcourse d'actionnement ne provoque donc pas de détérioration de l'organe 36 car la boucle 66 présente une capacité propre de déformation élastique.The actuation overtravel therefore does not cause deterioration of the member 36 because the loop 66 has a inherent capacity for elastic deformation.

Lorsque l'on relâche l'effort d'actionnement, la lame 48 restitue l'énergie qu'elle a emmagasinée lors de l'actionnement pour retrouver son état de repos, en pivotant globalement autour de l'axe X-X dans le sens anti-horaire, et pour repousser le poussoir 44 de la gauche vers la droite du fait de l'agencement de la rampe 94.When the actuation force is released, the blade 48 restores the energy it stored during actuation to return to its resting state, by pivoting globally around the X-X axis counterclockwise, and for push pusher 44 from left to right due to the arrangement of the ramp 94.

La conception du commutateur selon l'invention est particulièrement compacte.The design of the switch according to the invention is particularly compact.

Ainsi, sa hauteur totale est inférieure à environ 1,7 mm et sa largeur selon la direction H, est inférieure à 3 mm.So its total height is less than about 1.7mm and its width in the direction H, is less than 3 mm.

L'assemblage des composants et le positionnement relatif des éléments mobiles sont particulièrement simples du fait de la conception de la plaque de commande 46.Component assembly and positioning relative moving parts are particularly simple the made of the design of the control plate 46.

Selon une variante de réalisation, non représentée sur les figures, la partie centrale 40 de l'organe de déclenchement 36 peut être incurvée pour présenter un profil complémentaire de celui du tronçon incurvé 78 de la lame 48. Une partie centrale ainsi modifiée avec sa concavité tournée vers le haut, en considérant les figures, permet d'améliorer la coopération des deux composants et la boucle de la lame 48 peut, au repos, s'étendre à l'intérieur du trou 56 verticalement vers le bas légèrement au-dessous de la plaque 46 pour être en contact avec la partie centrale incurvée 40.According to an alternative embodiment, not shown on the figures, the central part 40 of the triggering member 36 can be curved to present a complementary profile that of the curved section 78 of the blade 48. A portion central thus modified with its concavity turned upwards, considering the figures, improves cooperation of the two components and the blade loop 48 can, at rest, extend inside hole 56 vertically towards the bottom slightly below plate 46 to be in contact with the curved central part 40.

Claims (12)

  1. Electric switch of the type comprising a contact-holder (30, 34) support (10, 12), which delimits a receptacle (22), in the substantially flat base (26) of which there are disposed at least two fixed electric contacts (30, 34), and which receives a triggering unit (36) with a generally convex shape, which is deformable resiliently from a position of rest, according to a direction (V) which is substantially perpendicular to the base (26) of the receptacle (22), in order to establish an electrical connection between the two fixed contacts (30, 34), and of the type comprising an activation thruster (44), which is fitted such as to slide relative to the support (10, 12), in a direction (H) parallel to the base (26) of the receptacle (22), in order to act on the triggering unit (36), by means of mechanical means (48) which transform the activation force exerted on the thruster (44) into a perpendicular triggering force applied to the triggering unit (36), from a position of rest towards which it is returned resiliently, characterised in that it comprises an activation lever (48), which is fitted in a manner which is articulated relative to the support (10, 12), around an axis (X-X) which is parallel to the base (26) of the receptacle (22), a support point of which co-operates with the triggering unit (36, 40), of which the point of application of the power by the thruster (44) co-operates with a portion (90, 94) of the thruster (44) in the form of an inclined ramp (94), and in that the lever (48) is returned resiliently towards its position of rest.
  2. Electric switch according to claim 1, characterised in that the axis of pivoting (X-X) of the lever (48) is perpendicular to the direction (H) of sliding of the thruster (44).
  3. Electric switch according to claim 1 or claim 2, characterised in that the lever is produced in the form of a resiliently deformable metal strip (48), one end (64) of which is fixed relative to the support (10, 12), and which extends above the triggering unit (36, 40).
  4. Electric switch according to claim 3, taken in combination with claim 2, characterised in that the strip comprises a securing section (64), which is extended by a section (66) in the form of a loop, a portion (76) of which co-operates with the ramp (94) of the thruster (44), and a portion (78) of which co-operates with the central part (40) opposite, of the triggering unit (36).
  5. Electric switch according to claim 4, characterised in that the securing section (64) has a profile in the shape of a "U", a straight branch (68) of which is secured to the support (10, 12), and the other straight branch (74) of which extends substantially parallel to the base (26) of the receptacle (22), and is extended by the active section in the form of a loop (66), which is disposed opposite the curved branch (70) of the securing section (64), and above the triggering unit (35, 40).
  6. Electric switch according to claim 4 or claim 5, characterised in that the strip (48) is integral with a plate (46) which covers the upper surface (20) of the contact-holder support (10, 12) in which the receptacle (22) is provided, and which contains an aperture (56) provided opposite the central part (40) of the triggering unit (36), for passage of the active section (66, 78) of the strip (48).
  7. Electric switch according to claim 6, taken in combination with claim 5, characterised in that the straight securing branch (68) of the strip belongs to the body of the plate (46), and is extended above the latter by the curved branch (70) of the securing section in the shape of a "U".
  8. Electric switch according to claim 6 or claim 7, characterised in that the thruster (44) is fitted such as to slide on the upper surface (60) of the plate (46).
  9. Electric switch according to claim 8, characterised in that the upper surface (60) of the plate (46) comprises lugs (62) for guiding in a sliding manner of the thruster (44), and stop means (58) which limit the displacements of the thruster (44) relative to the plate (46).
  10. Electric switch according to claim 9, characterised in that the stop means comprise a stop lug (58), which is received in a sliding manner in a longitudinal slot (96) formed in the lower surface (82) of the thruster (44) which is supported on the plate (46, 60), and can co-operate with the opposite ends (98, 100) of the slot (96), in order to determine the position of rest of the thruster (44) and the maximum path of activation of the thruster.
  11. Electric switch according to any one of claims 8 to 10, characterised in that it comprises a cover (102), a full upper wall (104) of which extends above the thruster (44), parallel to the base (26) of the receptacle (22), and the lateral surfaces (106, 108) of which extend vertically along the lateral edges (50, 52, 54) of the plate (46), and along the lateral surfaces (14, 16) of the contact-holder support (10, 12).
  12. Electric switch according to claim 11, characterised in that the cover (102) is made of sheet metal which is cut and folded, and in that some of its lateral surfaces (108) contain pairs of transverse lugs (118, 116), between which the body (12) of the contact-holder support (10) and the plate (46) are immobilised vertically relative to one another.
EP96400984A 1995-05-16 1996-05-09 Electric switch for sideways operation Expired - Lifetime EP0743663B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9505754 1995-05-16
FR9505754A FR2734398B1 (en) 1995-05-16 1995-05-16 SIDE OPERATION ELECTRIC SWITCH

Publications (2)

Publication Number Publication Date
EP0743663A1 EP0743663A1 (en) 1996-11-20
EP0743663B1 true EP0743663B1 (en) 2001-06-27

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EP96400984A Expired - Lifetime EP0743663B1 (en) 1995-05-16 1996-05-09 Electric switch for sideways operation

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US (1) US5660272A (en)
EP (1) EP0743663B1 (en)
DE (1) DE69613512T2 (en)
ES (1) ES2158256T3 (en)
FR (1) FR2734398B1 (en)

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Also Published As

Publication number Publication date
FR2734398B1 (en) 1997-07-18
ES2158256T3 (en) 2001-09-01
DE69613512T2 (en) 2002-06-06
FR2734398A1 (en) 1996-11-22
EP0743663A1 (en) 1996-11-20
US5660272A (en) 1997-08-26
DE69613512D1 (en) 2001-08-02

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