EP3185079A1 - Push-button arrangement for an electronic or electromechanical wristwatch - Google Patents

Push-button arrangement for an electronic or electromechanical wristwatch Download PDF

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Publication number
EP3185079A1
EP3185079A1 EP15201722.4A EP15201722A EP3185079A1 EP 3185079 A1 EP3185079 A1 EP 3185079A1 EP 15201722 A EP15201722 A EP 15201722A EP 3185079 A1 EP3185079 A1 EP 3185079A1
Authority
EP
European Patent Office
Prior art keywords
push
button
push button
electronic
electronic board
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
EP15201722.4A
Other languages
German (de)
French (fr)
Other versions
EP3185079B1 (en
Inventor
Pascal Lagorgette
Raphaël Balmer
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.)
ETA SA Manufacture Horlogere Suisse
Original Assignee
ETA SA Manufacture Horlogere Suisse
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 ETA SA Manufacture Horlogere Suisse filed Critical ETA SA Manufacture Horlogere Suisse
Priority to EP15201722.4A priority Critical patent/EP3185079B1/en
Priority to US15/284,902 priority patent/US10068724B2/en
Priority to JP2016200674A priority patent/JP6286005B2/en
Priority to CN201610974928.9A priority patent/CN107918272B/en
Priority to KR1020160171714A priority patent/KR20170074185A/en
Publication of EP3185079A1 publication Critical patent/EP3185079A1/en
Priority to KR1020180089065A priority patent/KR20180088778A/en
Priority to HK18111780.1A priority patent/HK1252472A1/en
Application granted granted Critical
Publication of EP3185079B1 publication Critical patent/EP3185079B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G21/00—Input or output devices integrated in time-pieces
    • G04G21/08—Touch switches specially adapted for time-pieces
    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G17/00—Structural details; Housings
    • G04G17/08—Housings
    • 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
    • H01H13/12—Movable parts; Contacts mounted thereon
    • H01H13/14—Operating parts, e.g. push-button
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B3/00—Normal winding of clockworks by hand or mechanically; Winding up several mainsprings or driving weights simultaneously
    • G04B3/04—Rigidly-mounted keys, knobs or crowns
    • G04B3/048—Operation exclusively by axial movement of a push-button, e.g. for chronographs
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B37/00—Cases
    • G04B37/08—Hermetic sealing of openings, joints, passages or slits
    • G04B37/10—Hermetic sealing of openings, joints, passages or slits of winding stems
    • G04B37/106—Hermetic sealing of openings, joints, passages or slits of winding stems of push buttons
    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C3/00—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means
    • G04C3/001—Electromechanical switches for setting or display
    • G04C3/007—Electromechanical contact-making and breaking devices acting as pulse generators for setting
    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G17/00—Structural details; Housings
    • 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
    • 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
    • H01H13/52—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 immediately upon removal of operating force, e.g. bell-push switch

Definitions

  • the present invention relates to a push button arrangement for an electronic wristwatch. More specifically, the invention relates to such a push button arrangement which is less bulky and more resistant to fatigue.
  • a push button is a very simple control means which consists schematically of a rod sliding in a passageway through the frame of an apparatus, being held in the rest position by elastic means which push the head of the rod towards outside, and being brought into operating position by pressure exerted by the user on the head.
  • the elastic means are for example formed by a helical spring housed in the through passage and which bears between the frame and the head of the pusher.
  • control means of the kind mentioned above can to be satisfactory even in its simplest embodiment.
  • the control of start and end of counting time by pressing an appropriate pushbutton must be synchronized with an event, for example sporty, that the user must observe, which does not allow him to simultaneously exercise a visual check of the proper functioning of the chronograph.
  • the elastic means which serve to maintain the pushbutton at rest can be formed by an elastic blade whose first free end is fixed on a plate and whose second free end which serves to hold the button.
  • pusher in the rest position is extended by a bent portion U substantially in the axis of the pusher.
  • This curved portion also elastic, bears against a tenon driven into the plate and has at its end a thickening or a notch which, crossing the tenon, produces a click when pressure is exerted on the push button.
  • the actuation of the push button will control the start of a time counting mechanism or will cause the closing of an electrical contact just after the feel of the click.
  • the disadvantage of such a push button arrangement lies in its size, which is relatively important in that the elastic blade extends in a plane and must be long enough to be able to restore the user's effort to the push button while remaining elastic.
  • the present invention relates to a second type of pushbutton said surface mounted, also known by its name Angled Surface Mounted Device or SMD.
  • the actuating element of such a type of push button is typically formed of a flexible metal sheet shaped as a dome, the dome having a periphery bearing on a first contact and a top which, when the user presses the push button, deforms and comes to bear on a second contact, which allows to close an electrical contact and send an electrical control signal.
  • the dome moves from its rest position to its depressed position, producing a click that is felt by the user.
  • One of the advantages of surface mounted type pushbuttons is that they occupy less space and can therefore be integrated into smaller devices.
  • the support 6 of the push button 1 substantially L-shaped, is mounted cantilevered by one of its branches 6a on the upper surface 8 of the electronic board 2 by means of a few soldering points 10
  • the second branch 6b almost inevitably has a slight clearance 12 with the lateral surface 14 of the electronic plate 2, so that under the effect of the forces of shear due to repeated pressures on the push button 1, the risk that the weld points 10 give up due to fatigue is high.
  • the present invention relates to a push-button arrangement for a portable object formed of a box inside which is housed an electronic board that extends horizontally, the push button being of the surface-mounted type.
  • a flexible printed circuit sheet itself partially fixed on the electronic board, the flexible printed circuit sheet being folded around the edge of the electronic board so that the push button extends substantially perpendicularly to the electronic board, in support against the edge of the latter.
  • the present invention provides a push-button arrangement of the surface-mounted type which is much more compact than a watch-type push-button and therefore easier to integrate into a small portable object such as a watch. bracelet.
  • push-buttons of the type mounted on the surface are standard components manufactured in large quantities and are therefore less expensive.
  • the printed circuit board on which is welded the push button extends below the latter. Consequently, when the push button is pressed, the welds work in slight compression and no longer in shear, so that the risk of these welds giving up is almost completely eliminated.
  • the push button being pressed against the wafer of the electronic board, this provides good mechanical resistance to pressure and provides good positioning tolerances in the vertical plane.
  • the push button can be welded flat on the printed circuit board, this greatly facilitates manufacturing operations.
  • the pushbutton is disposed in a housing formed in the electronic board, this housing limiting the movement of the pushbutton horizontally forwards and backwards and vertically downwards.
  • the housing formed in the electronic board is covered by an auxiliary board which limits the movement of the push button vertically upwards.
  • the box of the portable object is pierced with a through hole inside which slides a rod of an external push button held in the rest position by resilient means which repel the rod outwards, and brought into the operating position in which it presses the push button mounted on the surface by a pressure exerted on the rod.
  • the present invention proceeds from the general inventive idea of attaching a push-button of the surface-mounted type to a flexible printed circuit sheet itself fixed in part on an electronic board housed in the box of a portable object such as an electronic or electromechanical wristwatch.
  • the printed circuit sheet is arranged on the electronic board so that the portion of this printed circuit board that carries the push button remains free and can be folded around the edge of the electronic board to bring the push button into a plane. vertical in which the push button is in support against the edge of the electronic board.
  • FIG. figure 2 A push button arrangement according to the invention is illustrated in FIG. figure 2 attached to this patent application.
  • this push button arrangement comprises an electronic circuit board 18 delimited by a peripheral edge 20 and a lateral surface or wafer 22.
  • Such an electronic circuit board 18 is intended to receive on its upper surface 24 a set of electronic components interconnected by electrically conductive tracks and necessary for the operation of a portable object such as a wristwatch in which the electronic board 18 is embedded.
  • a flexible printed circuit sheet 26 is partly fixed on the upper surface 24 of the electronic board 18, while a portion 28 of this flexible printed circuit board 26 which carries a push button 30 of the type mounted on surface remains free.
  • the free portion 28 of the flexible printed circuit sheet 26 is folded around the peripheral edge 20 of the electronic board 18 so that the push button 30 is found in a vertical plane bearing against the edge 22 of the electronic board 18.
  • the free portion 28 of the flexible printed circuit board 26 which carries the push button 30 is long enough to be able to be folded downwardly around the peripheral edge 20 of the electronic board 18, and then upwardly to form a V-shaped bend 32.
  • this embodiment is given for illustrative and not limiting only and that it is enough that the free portion 28 of the flexible printed circuit sheet 26 is sufficiently long to be folded down around the peripheral edge 20 of the electronic board 18 so as to bring the push button 30 in a vertical plane in which it bears against the edge 22 of the electronic board 18.
  • the pushbutton 30 is soldered flat on the flexible printed circuit sheet 26. Consequently, when the flexible printed circuit sheet 26 is fixed on the upper surface 24 of the electronic board 18, then folded downward so as to bring the pushbutton 30 in a vertical plane bearing against the wafer 22 of the electronic board 18, the welds 34 by means of which the pushbutton 30 is secured to the flexible printed circuit sheet 26 are stressed in compression and no longer in shear when pressing the push button 30, so that the risk that these welds 34 give is almost completely eliminated. It will also be noted that since the push-button 30 bears against the wafer 22 of the electronic board 18, this provides good mechanical resistance to pressure and makes it possible to obtain good positioning tolerances in the vertical plane. Finally, the push button 30 can be soldered flat on the flexible printed circuit sheet 26, this greatly facilitates the manufacturing operations.
  • the push-button 30 is disposed in a recess 36 formed in the lateral surface 22 of the electronic plate 18.
  • This recess 36 is delimited by a vertical lateral wall 38 which encloses the button pushbutton 30 and which is extended forward by a horizontal surface 40.
  • This horizontal surface 40 defined by a flange 42, serves as a bearing surface for the pushbutton 30.
  • the housing 36 thus limits the movement of the pushbutton 30 horizontally forwards and backwards and vertically downwards.
  • the push button arrangement 16 is intended to be housed in a box 46 of a portable object such as a wristwatch.
  • This box 46 is formed of a middle part 48 which is pierced with a through hole 50 inside which a rod 52 of an external push button 54 is slidably arranged between a rest position in which the rod 52 is maintained by elastic means 56 which push it outwardly, and an operating position in which, by pressing on the rod 52, the latter presses on the pushbutton 30.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electric Clocks (AREA)
  • Push-Button Switches (AREA)

Abstract

Agencement de bouton-poussoir comprenant une platine électronique (18), le bouton-poussoir (30) étant du type monté en surface d'une feuille de circuit imprimé flexible (26) elle-même partiellement fixée sur la platine électronique (18), une portion (28) de la feuille de circuit imprimé flexible (26) qui porte le bouton-poussoir (30) restant libre et étant pliée autour d'un bord périphérique (20) de la platine électronique (18) de façon que le bouton-poussoir (30) s'étende sensiblement perpendiculairement à la platine électronique (18), en appui contre une surface latérale (22) de cette platine électronique (18).Push-button arrangement comprising an electronic board (18), the push-button (30) being of the surface-mounted type of a flexible printed circuit board (26) itself partially fixed to the electronic board (18), a portion (28) of the flexible printed circuit board (26) carrying the pushbutton (30) remaining free and being folded around a peripheral edge (20) of the electronic board (18) so that the button push-button (30) extends substantially perpendicularly to the electronic board (18), resting against a lateral surface (22) of this electronic board (18).

Description

Domaine technique de l'inventionTechnical field of the invention

La présente invention concerne un agencement de bouton-poussoir pour une montre-bracelet électronique. Plus précisément, l'invention concerne un tel agencement de bouton-poussoir qui est moins encombrant et qui résiste mieux à la fatigue.The present invention relates to a push button arrangement for an electronic wristwatch. More specifically, the invention relates to such a push button arrangement which is less bulky and more resistant to fatigue.

Arrière-plan technologique de l'inventionTechnological background of the invention

Un bouton-poussoir est un moyen de commande très simple qui se compose schématiquement d'une tige coulissant dans un passage traversant du bâti d'un appareil, en étant maintenue en position de repos par des moyens élastiques qui repoussent la tête de la tige vers l'extérieur, et en étant amenée en position de fonctionnement par une pression exercée par l'utilisateur sur la tête. Les moyens élastiques sont par exemple formés par un ressort hélicoïdal logé dans le passage traversant et qui prend appui entre le bâti et la tête du poussoir.A push button is a very simple control means which consists schematically of a rod sliding in a passageway through the frame of an apparatus, being held in the rest position by elastic means which push the head of the rod towards outside, and being brought into operating position by pressure exerted by the user on the head. The elastic means are for example formed by a helical spring housed in the through passage and which bears between the frame and the head of the pusher.

Dans les applications où le bon fonctionnement d'un appareil est facilement perceptible par l'utilisateur, tel que l'éclairage d'une chambre ou la mise en marche d'une source sonore, un moyen de commande du genre mentionné ci-dessus peut être satisfaisant même dans sa forme de réalisation la plus simple. Dans d'autres cas cependant, il est nécessaire que l'utilisateur qui exerce une pression sur un bouton-poussoir ressente de façon certaine que la fonction sélectionnée a bien été activée, en particulier lorsqu'il n'est pas en mesure d'exercer un contrôle visuel ou auditif à ce sujet. Il en est particulièrement ainsi dans une montre chronographe, qu'elle soit mécanique ou électronique. En effet, la commande de début et de fin de comptage du temps par pression sur un bouton-poussoir approprié doit être synchronisée avec un événement, par exemple sportif, que l'utilisateur doit observer, ce qui ne permet pas à celui-ci d'exercer simultanément un contrôle visuel du bon fonctionnement du chronographe.In applications where the smooth operation of a device is easily perceptible to the user, such as lighting a room or starting a sound source, control means of the kind mentioned above can to be satisfactory even in its simplest embodiment. In other cases, however, it is necessary for the user who exerts pressure on a push button to feel confident that the selected function has been activated, particularly when he is unable to exercise a visual or auditory control on this subject. This is particularly so in a chronograph watch, which she either mechanical or electronic. Indeed, the control of start and end of counting time by pressing an appropriate pushbutton must be synchronized with an event, for example sporty, that the user must observe, which does not allow him to simultaneously exercise a visual check of the proper functioning of the chronograph.

Pour remédier à cet inconvénient, différents dispositifs ont été proposés pour produire un déclic perceptible par l'utilisateur lorsqu'il exerce une pression sur un bouton-poussoir. A titre d'exemple uniquement, les moyens élastiques qui servent à maintenir le bouton-poussoir au repos peuvent être formés par une lame élastique dont une première extrémité libre est fixée sur une platine et dont la seconde extrémité libre qui sert à maintenir le bouton-poussoir en position de repos est prolongée par une partie recourbée en U sensiblement dans l'axe du poussoir. Cette partie recourbée, également élastique, est en appui contre un tenon chassé dans la platine et présente à son extrémité une surépaisseur ou une encoche qui, en franchissant le tenon, produit un déclic lorsqu'une pression est exercée sur le bouton-poussoir.To remedy this drawback, various devices have been proposed to produce a click that is perceptible to the user when he exerts pressure on a pushbutton. By way of example only, the elastic means which serve to maintain the pushbutton at rest can be formed by an elastic blade whose first free end is fixed on a plate and whose second free end which serves to hold the button. pusher in the rest position is extended by a bent portion U substantially in the axis of the pusher. This curved portion, also elastic, bears against a tenon driven into the plate and has at its end a thickening or a notch which, crossing the tenon, produces a click when pressure is exerted on the push button.

Selon que la montre chronographe est mécanique ou électronique, l'actionnement du bouton-poussoir commandera la mise en marche d'un mécanisme de comptage du temps ou bien provoquera la fermeture d'un contact électrique juste après le ressenti du clic. L'inconvénient d'un tel agencement de bouton-poussoir réside cependant dans son encombrement qui est relativement important dans la mesure où la lame élastique s'étend dans un plan et doit être suffisamment longue pour pouvoir restituer l'effort de l'utilisateur sur le bouton-poussoir tout en restant élastique.Depending on whether the chronograph watch is mechanical or electronic, the actuation of the push button will control the start of a time counting mechanism or will cause the closing of an electrical contact just after the feel of the click. The disadvantage of such a push button arrangement, however, lies in its size, which is relatively important in that the elastic blade extends in a plane and must be long enough to be able to restore the user's effort to the push button while remaining elastic.

La présente invention concerne un second type de bouton-poussoir dit monté en surface, encore connu sous sa dénomination anglo-saxonne Surface Mounted Device ou SMD. L'élément d'actionnement d'un tel type de bouton-poussoir est typiquement formé d'une feuille métallique flexible conformée en dôme, le dôme présentant un pourtour en appui sur un premier contact et un sommet qui, lorsque l'utilisateur appuie sur le bouton-poussoir, se déforme et vient en appui sur un second contact, ce qui permet de fermer un contact électrique et d'envoyer un signal électrique de commande. Lorsqu'une pression est exercée sur le bouton-poussoir, le dôme passe de sa position de repos à sa position enfoncée, produisant un déclic qui est ressenti par l'utilisateur. L'un des avantages des boutons-poussoirs du type monté en surface est qu'ils occupent moins de place et peuvent donc être intégrés dans des dispositifs de petites dimensions.The present invention relates to a second type of pushbutton said surface mounted, also known by its name Angled Surface Mounted Device or SMD. The actuating element of such a type of push button is typically formed of a flexible metal sheet shaped as a dome, the dome having a periphery bearing on a first contact and a top which, when the user presses the push button, deforms and comes to bear on a second contact, which allows to close an electrical contact and send an electrical control signal. When pressure is exerted on the push button, the dome moves from its rest position to its depressed position, producing a click that is felt by the user. One of the advantages of surface mounted type pushbuttons is that they occupy less space and can therefore be integrated into smaller devices.

On comprendra cependant en examinant la figure 1 annexée à la présente demande de brevet que lorsqu'un tel bouton-poussoir 1 est monté sur une platine électronique 2 logée dans la boîte 4 d'un objet portable tel qu'une montre-bracelet électronique ou électromécanique, il est très souvent actionné par le côté de la boîte 4, c'est-à-dire suivant un rayon de cette dernière. Or, comme on le remarque sur la figure 1, le support 6 du bouton-poussoir 1, sensiblement en forme de L, est monté en porte-à-faux par l'une de ses branches 6a sur la surface supérieure 8 de la platine électronique 2 au moyen de quelques points de soudure 10. En fonction de la qualité plus ou moins bonne des points de soudure 10, la seconde branche 6b présente de façon quasi inévitable un léger jeu 12 avec la surface latérale 14 de la platine électronique 2, de sorte que sous l'effet des forces de cisaillement dues aux pressions répétées sur le bouton-poussoir 1, le risque que les points de soudure 10 cèdent en raison de la fatigue est élevé.However, we will understand by examining the figure 1 attached to this patent application that when such a push button 1 is mounted on an electronic circuit board 2 housed in the box 4 of a portable object such as an electronic or electromechanical wristwatch, it is very often actuated by the side of the box 4, that is to say along a radius of the latter. Now, as we notice on the figure 1 , the support 6 of the push button 1, substantially L-shaped, is mounted cantilevered by one of its branches 6a on the upper surface 8 of the electronic board 2 by means of a few soldering points 10 According to the more or less good quality of the weld points 10, the second branch 6b almost inevitably has a slight clearance 12 with the lateral surface 14 of the electronic plate 2, so that under the effect of the forces of shear due to repeated pressures on the push button 1, the risk that the weld points 10 give up due to fatigue is high.

Résumé de l'inventionSummary of the invention

La présente invention a pour but de palier les inconvénients mentionnés ci-dessus ainsi que d'autres encore en procurant un agencement de bouton-poussoir pour un objet portable de petites dimensions tel qu'une montre-bracelet électronique ou électromécanique qui prenne peu de place et qui soit résistant mécaniquement à la fatigue.It is an object of the present invention to overcome the disadvantages mentioned above as well as others by providing a push-button arrangement for a small portable object such as an electronic or electromechanical wristwatch which takes up little space and which is mechanically resistant to fatigue.

A cet effet, la présente invention concerne un agencement de bouton-poussoir pour un objet portable formé d'une boîte à l'intérieur de laquelle est logée une platine électronique qui s'étend horizontalement, le bouton-poussoir étant du type monté en surface d'une feuille de circuit imprimé flexible elle-même fixée partiellement sur la platine électronique, la feuille de circuit imprimé flexible étant pliée autour du bord de la platine électronique de façon que le bouton-poussoir s'étende sensiblement perpendiculairement à la platine électronique, en appui contre la tranche de cette dernière.For this purpose, the present invention relates to a push-button arrangement for a portable object formed of a box inside which is housed an electronic board that extends horizontally, the push button being of the surface-mounted type. a flexible printed circuit sheet itself partially fixed on the electronic board, the flexible printed circuit sheet being folded around the edge of the electronic board so that the push button extends substantially perpendicularly to the electronic board, in support against the edge of the latter.

Grâce à ces caractéristiques, la présente invention procure un agencement pour un bouton-poussoir du type monté en surface beaucoup plus compact qu'un poussoir de type horloger et donc plus facile à intégrer dans un objet portable de petites dimensions tel qu'une montre-bracelet. Par ailleurs, les boutons-poussoirs du type monté en surface sont des composants standards fabriqués en grandes quantités et sont donc moins coûteux. De plus, la feuille de circuit imprimé sur laquelle est soudé le bouton-poussoir s'étend sous ce dernier. Par conséquent, lorsqu'on appuie sur le bouton-poussoir, les soudures travaillent en légère compression et non plus en cisaillement, de sorte que le risque que ces soudures cèdent est quasiment totalement éliminé. On notera également que le bouton-poussoir étant en appui contre la tranche de la platine électronique, cela procure une bonne résistance mécanique à la pression et permet d'obtenir de bonnes tolérances de positionnement dans le plan vertical. Enfin, le bouton-poussoir pouvant être soudé à plat sur la feuille de circuit imprimé, cela facilite considérablement les opérations de fabrication.Thanks to these features, the present invention provides a push-button arrangement of the surface-mounted type which is much more compact than a watch-type push-button and therefore easier to integrate into a small portable object such as a watch. bracelet. In addition, push-buttons of the type mounted on the surface are standard components manufactured in large quantities and are therefore less expensive. In addition, the printed circuit board on which is welded the push button extends below the latter. Consequently, when the push button is pressed, the welds work in slight compression and no longer in shear, so that the risk of these welds giving up is almost completely eliminated. Note also that the push button being pressed against the wafer of the electronic board, this provides good mechanical resistance to pressure and provides good positioning tolerances in the vertical plane. Finally, the push button can be welded flat on the printed circuit board, this greatly facilitates manufacturing operations.

Selon une caractéristique complémentaire de l'invention, le bouton-poussoir est disposé dans un logement ménagé dans la platine électronique, ce logement limitant le déplacement du bouton-poussoir horizontalement vers l'avant et vers l'arrière et verticalement vers le bas.According to a complementary feature of the invention, the pushbutton is disposed in a housing formed in the electronic board, this housing limiting the movement of the pushbutton horizontally forwards and backwards and vertically downwards.

Selon une autre caractéristique de l'invention, le logement ménagé dans la platine électronique est recouvert par une platine auxiliaire qui limite le déplacement du bouton-poussoir verticalement vers le haut.According to another characteristic of the invention, the housing formed in the electronic board is covered by an auxiliary board which limits the movement of the push button vertically upwards.

Selon encore une autre caractéristique de l'invention, la boîte de l'objet portable est percée d'un trou traversant à l'intérieur duquel coulisse une tige d'un bouton-poussoir extérieur maintenue en position de repos par des moyens élastiques qui repoussent la tige vers l'extérieur, et amenée en position de fonctionnement dans laquelle elle appuie sur le bouton-poussoir monté en surface par une pression exercée sur la tige.According to yet another characteristic of the invention, the box of the portable object is pierced with a through hole inside which slides a rod of an external push button held in the rest position by resilient means which repel the rod outwards, and brought into the operating position in which it presses the push button mounted on the surface by a pressure exerted on the rod.

Brève description des figuresBrief description of the figures

D'autres caractéristiques et avantages de la présente invention ressortiront plus clairement de la description détaillée qui suit d'un exemple de réalisation d'un agencement de bouton-poussoir selon l'invention, cet exemple étant donné à titre purement illustratif et non limitatif seulement en liaison avec le dessin annexé sur lequel :

  • la figure 1, déjà citée, illustre un agencement de bouton-poussoir monté en surface d'une platine électronique selon l'art antérieur ;
  • la figure 2 est une vue en coupe verticale d'une platine électronique sur laquelle une feuille de circuit imprimé flexible est fixée, une portion de la feuille de circuit imprimé flexible laissée libre portant un bouton-poussoir et étant repliée de façon que le bouton-poussoir s'étende verticalement, en appui contre la tranche de la platine ;
  • la figure 3 est une vue de dessus de la platine électronique sur laquelle est fixée la feuille de circuit imprimé flexible, la platine auxiliaire qui recouvre le logement dans lequel est disposé le bouton-poussoir ayant été retirée, et
  • la figure 4 est une vue en coupe verticale de la platine électronique illustrée à la figure 2, cette platine électronique étant logée dans une boîte d'un objet portable qui est percée d'un trou traversant à l'intérieur duquel une tige d'un bouton-poussoir extérieur est agencée à coulissement entre une position de repos et une position de fonctionnement dans laquelle elle appuie sur le bouton-poussoir monté en surface.
Other features and advantages of the present invention will emerge more clearly from the following detailed description of an exemplary embodiment of a push button arrangement according to the invention, this example being given for purely illustrative and not limiting purposes only. in conjunction with the accompanying drawing in which:
  • the figure 1 , already mentioned, illustrates a push button arrangement mounted on the surface of an electronic board according to the prior art;
  • the figure 2 is a vertical sectional view of an electronic board on which a flexible printed circuit sheet is attached, a portion of the flexible printed circuit sheet left free carrying a push button and folded so that the push button extends vertically, resting against the edge of the plate;
  • the figure 3 is a top view of the electronic board on which is fixed the flexible printed circuit sheet, the auxiliary board which covers the housing in which the push button is removed, and
  • the figure 4 is a vertical sectional view of the electronic circuit board illustrated in FIG. figure 2 , this electronic board being housed in a box a portable object which is pierced with a through hole inside which a rod of an external push-button is slidably arranged between a rest position and an operating position in which it presses the push-button surface mounted.

Description détaillée d'un mode de réalisation de l'inventionDetailed description of an embodiment of the invention

La présente invention procède de l'idée générale inventive qui consiste à fixer un bouton-poussoir du type monté en surface sur une feuille de circuit imprimé flexible elle-même fixée en partie sur une platine électronique logée dans la boîte d'un objet portable tel qu'une montre-bracelet électronique ou électromécanique. La feuille de circuit imprimé est agencée sur la platine électronique de façon que la partie de cette feuille de circuit imprimé qui porte le bouton-poussoir reste libre et puisse être pliée autour du bord de la platine électronique pour amener le bouton-poussoir dans un plan vertical dans lequel le bouton-poussoir se retrouve en appui contre la tranche de la platine électronique.The present invention proceeds from the general inventive idea of attaching a push-button of the surface-mounted type to a flexible printed circuit sheet itself fixed in part on an electronic board housed in the box of a portable object such as an electronic or electromechanical wristwatch. The printed circuit sheet is arranged on the electronic board so that the portion of this printed circuit board that carries the push button remains free and can be folded around the edge of the electronic board to bring the push button into a plane. vertical in which the push button is in support against the edge of the electronic board.

Un agencement de bouton-poussoir conforme à l'invention est illustré à la figure 2 annexée à la présente demande de brevet. Désigné dans son ensemble par la référence numérique générale 16, cet agencement de bouton-poussoir comprend une platine électronique 18 délimitée par un bord périphérique 20 et une surface latérale ou tranche 22. Une telle platine électronique 18 est destinée à recevoir à sa surface supérieure 24 un ensemble de composants électroniques reliés entre eux par des pistes électriquement conductrices et nécessaires au fonctionnement d'un objet portable tel qu'une montre-bracelet dans lequel la platine électronique 18 est embarquée.A push button arrangement according to the invention is illustrated in FIG. figure 2 attached to this patent application. Designated as a whole by the general reference numeral 16, this push button arrangement comprises an electronic circuit board 18 delimited by a peripheral edge 20 and a lateral surface or wafer 22. Such an electronic circuit board 18 is intended to receive on its upper surface 24 a set of electronic components interconnected by electrically conductive tracks and necessary for the operation of a portable object such as a wristwatch in which the electronic board 18 is embedded.

Comme on peut le voir à l'examen de la figure 2, une feuille de circuit imprimé flexible 26 est en partie fixée sur la surface supérieure 24 de la platine électronique 18, tandis qu'une portion 28 de cette feuille de circuit imprimé flexible 26 qui porte un bouton-poussoir 30 du type monté en surface reste libre. La portion libre 28 de la feuille de circuit imprimé flexible 26 est pliée autour du bord périphérique 20 de la platine électronique 18 de façon que le bouton-poussoir 30 se retrouve dans un plan vertical en appui contre la tranche 22 de la platine électronique 18. Comme on peut le voir sur la figure 2, la portion libre 28 de la feuille de circuit imprimé flexible 26 qui porte le bouton-poussoir 30 est suffisamment longue pour pouvoir d'abord être pliée vers le bas autour du bord périphérique 20 de la platine électronique 18, puis vers le haut de façon à former un pli 32 en forme de V. Il va cependant de soi que ce mode de réalisation est donné à titre illustratif et non limitatif seulement et qu'il suffit que la portion libre 28 de la feuille de circuit imprimé flexible 26 soit suffisamment longue pour pouvoir être pliée vers le bas autour du bord périphérique 20 de la platine électronique 18 de façon à amener le bouton-poussoir 30 dans un plan vertical dans lequel il s'appuie contre la tranche 22 de la platine électronique 18.As can be seen from the examination of the figure 2 , a flexible printed circuit sheet 26 is partly fixed on the upper surface 24 of the electronic board 18, while a portion 28 of this flexible printed circuit board 26 which carries a push button 30 of the type mounted on surface remains free. The free portion 28 of the flexible printed circuit sheet 26 is folded around the peripheral edge 20 of the electronic board 18 so that the push button 30 is found in a vertical plane bearing against the edge 22 of the electronic board 18. As can be seen on the figure 2 , the free portion 28 of the flexible printed circuit board 26 which carries the push button 30 is long enough to be able to be folded downwardly around the peripheral edge 20 of the electronic board 18, and then upwardly to form a V-shaped bend 32. However, it goes without saying that this embodiment is given for illustrative and not limiting only and that it is enough that the free portion 28 of the flexible printed circuit sheet 26 is sufficiently long to be folded down around the peripheral edge 20 of the electronic board 18 so as to bring the push button 30 in a vertical plane in which it bears against the edge 22 of the electronic board 18.

Selon un avantage de l'invention, le bouton-poussoir 30 est soudé à plat sur la feuille de circuit imprimé flexible 26. Par conséquent, lorsque la feuille de circuit imprimé flexible 26 est fixée sur la surface supérieure 24 de la platine électronique 18 puis repliée vers le bas de façon à amener le bouton-poussoir 30 dans un plan vertical en appui contre la tranche 22 de la platine électronique 18, les soudures 34 au moyen desquelles le bouton-poussoir 30 est solidarisé sur la feuille de circuit imprimé flexible 26 sont sollicitées en compression et non plus en cisaillement lorsqu'on appuie sur le bouton-poussoir 30, de sorte que le risque que ces soudures 34 cèdent est quasiment totalement éliminé. On notera également que du fait que le bouton-poussoir 30 est en appui contre la tranche 22 de la platine électronique 18, cela procure une bonne résistance mécanique à la pression et permet d'obtenir de bonnes tolérances de positionnement dans le plan vertical. Enfin, le bouton-poussoir 30 pouvant être soudé à plat sur la feuille de circuit imprimé flexible 26, cela facilite considérablement les opérations de fabrication.According to an advantage of the invention, the pushbutton 30 is soldered flat on the flexible printed circuit sheet 26. Consequently, when the flexible printed circuit sheet 26 is fixed on the upper surface 24 of the electronic board 18, then folded downward so as to bring the pushbutton 30 in a vertical plane bearing against the wafer 22 of the electronic board 18, the welds 34 by means of which the pushbutton 30 is secured to the flexible printed circuit sheet 26 are stressed in compression and no longer in shear when pressing the push button 30, so that the risk that these welds 34 give is almost completely eliminated. It will also be noted that since the push-button 30 bears against the wafer 22 of the electronic board 18, this provides good mechanical resistance to pressure and makes it possible to obtain good positioning tolerances in the vertical plane. Finally, the push button 30 can be soldered flat on the flexible printed circuit sheet 26, this greatly facilitates the manufacturing operations.

Un examen attentif des figures 2 et 3 fait également ressortir qu'à titre préféré mais non limitatif le bouton-poussoir 30 est disposé dans un logement 36 ménagé dans la surface latérale 22 de la platine électronique 18. Ce logement 36 est délimité par une paroi latérale verticale 38 qui enveloppe le bouton-poussoir 30 et qui est prolongée vers l'avant par une surface horizontale 40. Cette surface horizontale 40, délimitée par un rebord 42, sert de surface d'appui au bouton-poussoir 30. Le logement 36 limite ainsi le déplacement du bouton-poussoir 30 horizontalement vers l'avant et vers l'arrière et verticalement vers le bas.A careful examination of Figures 2 and 3 It is also pointed out that, by way of a preferred but nonlimiting manner, the push-button 30 is disposed in a recess 36 formed in the lateral surface 22 of the electronic plate 18. This recess 36 is delimited by a vertical lateral wall 38 which encloses the button pushbutton 30 and which is extended forward by a horizontal surface 40. This horizontal surface 40, defined by a flange 42, serves as a bearing surface for the pushbutton 30. The housing 36 thus limits the movement of the pushbutton 30 horizontally forwards and backwards and vertically downwards.

Additionnellement, il est possible (voir figure 2) de recouvrir le logement 36 d'une platine auxiliaire 44 de façon que le bouton-poussoir 30 soit également limité dans ses déplacements vers le haut.Additionally, it is possible (see figure 2 ) to cover the housing 36 of an auxiliary plate 44 so that the push button 30 is also limited in its upward movements.

Comme représenté sur la figure 4, l'agencement de bouton-poussoir 16 selon l'invention est destiné à être logé dans une boîte 46 d'un objet portable tel qu'une montre-bracelet. Cette boîte 46 est formée d'une carrure 48 qui est percée d'un trou traversant 50 à l'intérieur duquel une tige 52 d'un bouton-poussoir extérieur 54 est agencée à coulissement entre une position de repos dans laquelle la tige 52 est maintenue par des moyens élastiques 56 qui la repoussent vers l'extérieur, et une position de fonctionnement dans laquelle, par pression sur la tige 52, celle-ci appuie sur le bouton-poussoir 30.As shown on the figure 4 , the push button arrangement 16 according to the invention is intended to be housed in a box 46 of a portable object such as a wristwatch. This box 46 is formed of a middle part 48 which is pierced with a through hole 50 inside which a rod 52 of an external push button 54 is slidably arranged between a rest position in which the rod 52 is maintained by elastic means 56 which push it outwardly, and an operating position in which, by pressing on the rod 52, the latter presses on the pushbutton 30.

Il va de soi que la présente invention n'est pas limitée au mode de réalisation qui vient d'être décrit et que diverses modifications et variantes simples peuvent être envisagées par l'homme du métier sans sortir du cadre de l'invention tel que défini par les revendications annexées.It goes without saying that the present invention is not limited to the embodiment which has just been described and that various modifications and simple variants can be envisaged by those skilled in the art without departing from the scope of the invention as defined by the appended claims.

NomenclatureNomenclature

  • Bouton-poussoir 1Push button 1
  • Platine électronique 2Electronic Platinum 2
  • Boîte 4Box 4
  • Support 6Support 6
  • Branches 6a, 6bBranches 6a, 6b
  • Surface supérieure 8Superior surface 8
  • Points de soudure 10Welding points 10
  • Jeu 12Game 12
  • Surface latérale 14Side surface 14
  • Agencement de bouton-poussoir 16Push button arrangement 16
  • Platine électronique 18Electronic turntable 18
  • Bord périphérique 20Perimeter edge 20
  • Surface latérale ou tranche 22Side surface or slice 22
  • Surface supérieure 24Upper surface 24
  • Feuille de circuit imprimé flexible 26Flexible printed circuit board 26
  • Portion libre 28Free portion 28
  • Bouton-poussoir 30Pushbutton 30
  • Pli en forme de V 32V-shaped fold 32
  • Soudures 34Welds 34
  • Logement 36Housing 36
  • Paroi latérale verticale 38Vertical side wall 38
  • Surface horizontale 40Horizontal surface 40
  • Rebord 42Edge 42
  • Platine auxiliaire 44Auxiliary turntable 44
  • Boîte 46Box 46
  • Carrure 48Carrure 48
  • Trou traversant 50Through hole 50
  • Tige 52Stem 52
  • Bouton-poussoir extérieur 54External push button 54
  • Moyens élastiques 56Elastic means 56

Claims (4)

Agencement de bouton-poussoir comprenant une platine électronique (18), le bouton-poussoir (30) étant du type monté en surface d'une feuille de circuit imprimé flexible (26) elle-même partiellement fixée sur la platine électronique (18), une portion (28) de la feuille de circuit imprimé flexible (26) qui porte le bouton-poussoir (30) restant libre et étant pliée autour d'un bord périphérique (20) de la platine électronique (18) de façon que le bouton-poussoir (30) s'étende sensiblement perpendiculairement à la platine électronique (18), en appui contre une surface latérale (22) de cette platine électronique (18).Push-button arrangement comprising an electronic board (18), the push-button (30) being of the surface-mounted type of a flexible printed circuit board (26) itself partially fixed to the electronic board (18), a portion (28) of the flexible printed circuit board (26) carrying the pushbutton (30) remaining free and being folded around a peripheral edge (20) of the electronic board (18) so that the button push-button (30) extends substantially perpendicularly to the electronic board (18), resting against a lateral surface (22) of this electronic board (18). Agencement de bouton-poussoir selon la revendication 1, caractérisé en ce que le bouton-poussoir (30) est disposé dans un logement (36) ménagé dans la platine électronique (18), ce logement (36) limitant le déplacement du bouton-poussoir (30) horizontalement vers l'avant et vers l'arrière et verticalement vers le bas.Push button arrangement according to Claim 1, characterized in that the push-button (30) is arranged in a recess (36) in the electronic circuit board (18), this recess (36) limiting the movement of the push-button (30) horizontally forward and backward and vertically downward. Agencement de bouton-poussoir selon la revendication 2, caractérisé en ce que le logement (36) ménagé dans la platine électronique (18) est recouvert par une platine auxiliaire (44) qui limite le déplacement du bouton-poussoir (30) verticalement vers le haut.Push button arrangement according to claim 2, characterized in that the recess (36) in the electronic board (18) is covered by an auxiliary board (44) which limits the movement of the push button (30) vertically towards the high. Objet portable formé d'une boîte (46) à l'intérieur de laquelle est logé un agencement de bouton-poussoir selon l'une quelconque des revendications 1 à 3, la boîte (46) de l'objet portable étant percée d'un trou traversant (50) à l'intérieur duquel coulisse une tige (52) d'un bouton-poussoir extérieur (54), cette tige (52) étant maintenue en position de repos par des moyens élastiques (56) qui repoussent la tige (52) vers l'extérieur, et étant amenée en position de fonctionnement dans laquelle elle appuie sur le bouton-poussoir (30) monté en surface par une pression exercée sur cette dernière.Portable object formed of a box (46) inside which is housed a push button arrangement according to any one of claims 1 to 3, the box (46) of the portable object being pierced with a through hole (50) inside which slides a rod (52) of an external push button (54), this rod (52) being held in the rest position by resilient means (56) which push back the rod ( 52) to the outside, and being brought into the operating position in which it presses the push button (30) mounted on the surface by a pressure exerted on the latter.
EP15201722.4A 2015-12-21 2015-12-21 Push-button arrangement for an electronic or electromechanical wristwatch Active EP3185079B1 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
EP15201722.4A EP3185079B1 (en) 2015-12-21 2015-12-21 Push-button arrangement for an electronic or electromechanical wristwatch
US15/284,902 US10068724B2 (en) 2015-12-21 2016-10-04 Push-button arrangement for an electronic or electromechanical wristwatch
JP2016200674A JP6286005B2 (en) 2015-12-21 2016-10-12 Electronic or electromechanical wristwatch pushbutton device
CN201610974928.9A CN107918272B (en) 2015-12-21 2016-11-07 Button device for an electronic or electromechanical wristwatch
KR1020160171714A KR20170074185A (en) 2015-12-21 2016-12-15 Push-button arrangement for an electronic or electromechanical wristwatch
KR1020180089065A KR20180088778A (en) 2015-12-21 2018-07-31 Push-button arrangement for an electronic or electromechanical wristwatch
HK18111780.1A HK1252472A1 (en) 2015-12-21 2018-09-13 Push-button arrangement for an electronic or electromechanical wristwatch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP15201722.4A EP3185079B1 (en) 2015-12-21 2015-12-21 Push-button arrangement for an electronic or electromechanical wristwatch

Publications (2)

Publication Number Publication Date
EP3185079A1 true EP3185079A1 (en) 2017-06-28
EP3185079B1 EP3185079B1 (en) 2019-08-21

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP15201722.4A Active EP3185079B1 (en) 2015-12-21 2015-12-21 Push-button arrangement for an electronic or electromechanical wristwatch

Country Status (6)

Country Link
US (1) US10068724B2 (en)
EP (1) EP3185079B1 (en)
JP (1) JP6286005B2 (en)
KR (2) KR20170074185A (en)
CN (1) CN107918272B (en)
HK (1) HK1252472A1 (en)

Families Citing this family (2)

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Publication number Priority date Publication date Assignee Title
KR20210003410A (en) 2019-07-02 2021-01-12 삼성전자주식회사 Electronic device including electrically connecting member
WO2023277337A1 (en) * 2021-06-28 2023-01-05 삼성전자 주식회사 Electronic device comprising printed circuit board

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FR2196515A1 (en) * 1972-08-18 1974-03-15 Matsushita Electric Ind Co Ltd
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EP1519453A1 (en) * 2003-09-23 2005-03-30 Asulab S.A. Portable electronic equipment having at least one I/O terminal adapted for establishing a connection with an electronic unit located within said equipment
EP1566129A2 (en) * 2004-02-20 2005-08-24 Seb S.A. Electric household appliance for food processing

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JPS5024770A (en) * 1973-07-05 1975-03-17
JPH09120739A (en) * 1995-10-26 1997-05-06 Shinmei Denki Kk Push switch
ATE331323T1 (en) * 2003-09-23 2006-07-15 Asulab Sa PORTABLE ELECTRONIC DEVICE HAVING AT LEAST ONE ADAPTED ACTUATING ELEMENT FOR TRANSMITTING ELECTRICAL SIGNALS
CN201590810U (en) * 2009-12-31 2010-09-22 深圳市创荣发电子有限公司 Touch button and electronic device adopting same
JP2012189521A (en) * 2011-03-13 2012-10-04 Seiko Instruments Inc Portable watch
EP2607972B1 (en) * 2011-12-22 2016-04-27 The Swatch Group Research and Development Ltd. Watertight push button for watch
EP2813907B1 (en) * 2013-06-11 2018-08-01 LG Electronics, Inc. Watch type mobile terminal

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Publication number Priority date Publication date Assignee Title
FR2196515A1 (en) * 1972-08-18 1974-03-15 Matsushita Electric Ind Co Ltd
EP0392307A1 (en) * 1989-04-12 1990-10-17 Eta SA Fabriques d'Ebauches Push-button, in particular for watch-case
EP1519453A1 (en) * 2003-09-23 2005-03-30 Asulab S.A. Portable electronic equipment having at least one I/O terminal adapted for establishing a connection with an electronic unit located within said equipment
EP1566129A2 (en) * 2004-02-20 2005-08-24 Seb S.A. Electric household appliance for food processing

Also Published As

Publication number Publication date
US10068724B2 (en) 2018-09-04
EP3185079B1 (en) 2019-08-21
JP2017116526A (en) 2017-06-29
CN107918272A (en) 2018-04-17
KR20170074185A (en) 2017-06-29
US20170178834A1 (en) 2017-06-22
KR20180088778A (en) 2018-08-07
HK1252472A1 (en) 2019-05-24
JP6286005B2 (en) 2018-02-28
CN107918272B (en) 2020-04-10

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