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EP0255712A1 - Works for electronic watch provided with hands for the display - Google Patents

Works for electronic watch provided with hands for the display Download PDF

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Publication number
EP0255712A1
EP0255712A1 EP87111177A EP87111177A EP0255712A1 EP 0255712 A1 EP0255712 A1 EP 0255712A1 EP 87111177 A EP87111177 A EP 87111177A EP 87111177 A EP87111177 A EP 87111177A EP 0255712 A1 EP0255712 A1 EP 0255712A1
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EP
European Patent Office
Prior art keywords
mobile
wheel
center
pinion
plate
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
EP87111177A
Other languages
German (de)
French (fr)
Other versions
EP0255712B1 (en
Inventor
Willy Cleusix
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
Ebauchesfabrik ETA AG
Original Assignee
Ebauchesfabrik ETA AG
Eta SA Fabriques dEbauches
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 Ebauchesfabrik ETA AG, Eta SA Fabriques dEbauches filed Critical Ebauchesfabrik ETA AG
Publication of EP0255712A1 publication Critical patent/EP0255712A1/en
Application granted granted Critical
Publication of EP0255712B1 publication Critical patent/EP0255712B1/en
Expired legal-status Critical Current

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    • 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
    • G04C3/008—Mounting, assembling of components
    • 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
    • G04B33/00—Calibers
    • G04B33/06—Calibers of extremely flat shape

Definitions

  • the present invention relates to electronic watch movements with needle display and more particularly to movements which comprise only an hour hand and a minute hand.
  • the object of the present invention is to remedy these defects by a constructive arrangement which maintains the possibility of using a stack extending as close as possible to the center of the movement, the thickness of this stack possibly being almost equal to the height. movement.
  • FIGS. 1 and 2 which illustrate the first embodiment, a watch movement is seen, the frame of which comprises a plate 1 and a gear train 2. Between these two frame elements is mounted a motor (not shown) the rotor of which comprises a pinion which meshes with a first intermediate mobile 3, more precisely with the wheel 4 of this first intermediate mobile.
  • the pinion 5 of this first intermediate mobile is engaged with the wheel 6 of a second intermediate mobile 7 whose pinion 8 is constituted by a toothed disc in the form of a plate driven out on the shaft 9 of this mobile.
  • This shaft 9 has two pivots 10 each engaged in a stone 11. One of these stones is driven into a hole in the plate located in the center of a drop 12 which projects towards the inside of the movement.
  • the plate 1 also includes a central recess 1a, the bottom 13 of which is punctured to allow the toothed disc 8 to mesh with a moving center 14 which will now be described.
  • This center mobile comprises a shaft 15 coming in one piece with a pinion 16 and a pivot 17.
  • the pivot 17 is supported by a bearing 18 formed by a stone driven into a hole of the gear train 2.
  • the mobile 14 further comprises a wheel 19 which comprises a board 19a provided with a toothing, a drop 19b, a flange 20 adjacent to the board 19a and between these two elements a circular groove coaxial with the mobile and designated by 21.
  • the toothing of the wheel 19 has the same number of teeth as the toothed disc 8 and it can be seen that these two elements are mutually engaged when the center mobile is in place.
  • the collar 20 has an outside diameter which is slightly greater than that of the pinion 16. This collar is engaged in a hole 22 formed in the bottom 13 of the central recess 1a of the plate 1. Consequently, this hole 22 or central opening of the plate 1 is larger than the center pinion 16.
  • the needle display device comprises a 24 hour cannon wheel which is engaged on the shaft 15 of the mobile 14 above the wheel 19 and bears against the drop 19b.
  • the barrel of this wheel 24 will carry an hour hand (not shown) while the end of the shaft 15 of the mobile 14 will carry a minute hand (not shown).
  • the battery 25 which constitutes the energy source of the movement is put in place from the rear of the movement in a notch or a hole in the gear point 2. It comes to rest against a beveled surface 26 of the bottom 13 of the central recess 1a of the plate 1. Between the upper face of the pile 25 and the part of the plate 1 which extends above the pile, there is sufficient space to accommodate a connection tab (not shown) ). The wheel 19 also extends in this space, while the plank of the hour wheel 24 extends at the level of the upper part of the plate 1. Radially, the stack 25 extends up to a distance from the center of the movement which is slightly greater than the radius of the pinion 16.
  • the wheels 19 and 24 are also visible in FIG. 2.
  • the pinion 16 is engaged with the wheel 27 of a timer mobile 18, the pinion 29 of which is driven in a flange 30 of diameter slightly greater than that of the pinion 29.
  • a hole 31 of the plate 1 ensures the pivoting.
  • the timer gear 29 is engaged with the barrel wheel 24, while the timer wheel 27, which is engaged with the center gear 16, can also be manually driven by moving the sliding gear 32 on the square of the control rod 33. This is engaged radially in the movement.
  • a lever 34 and a pull tab usually move the sliding pinion 32 when the rod 33 is pulled outwards in order to bring it into the time setting position. This movement construction therefore has no intermediate reference for setting the time.
  • the second embodiment differs from the first essentially by the fact that the center mobile 14 is pivotally mounted on a tenon 35, driven into the gear train 2. More precisely, the tenon 35 comprises a plate 36 forcibly engaged in a hole 37 of the deck 2, as well as a pivot 38, engaged in a hole 39 of the shaft 15, to ensure the pivoting of the latter.
  • the pivot 38 and the shaft 15 each have an annular boss, bearing the references 40 and 41 respectively and defining an axial notch, to ensure the axial positioning of the center mobile.
  • the center wheel 19 no longer has a collar or groove, the guide and the positioning of the minutes mobile being ensured by the lug only 35.
  • the plate 1 is devoid of recess in its center, but has a simple central opening 1b through which the assembly of the center mobile 14 and the hour and minute wheels 19 and 24 can be put in place.
  • the minute hand is carried by a shaft driven by a large diameter wheel, that is to say the center wheel 19, which considerably reduces the clearance gear.
  • the space available in height in the movement, to receive the battery exceeds 60% and can reach 90% of the thickness of the movement, even if this stack extends to the immediate vicinity of the center of the movement.
  • this solution offers an additional advantage, since it is possible to set up the center mobile and the barrel wheel once the movement is also completely finished.
  • the mobile 14 is simply engaged on the pivot 38. This makes it possible to store movements without the center mobile and the barrel wheel, and to choose, at the time of delivery, mobile and wheel in depending on the height of the switch. It might even be possible to mount the minute and hour hands respectively on the center mobile and the barrel wheel, with the interposition of the dial, before placing the module thus produced on the movement of the watch.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)

Abstract

Mouvement d'horlogerie avec une platine (1), un pont de rouage (2), un mobile de centre (14), une roue des heures (24) et une pile (25). Le mobile de centre (14) comprend un arbre (15) et une roue (19) montée à friction sur l'arbre (15). Dans l'épaisseur du mouvement, la roue (19) est adjacente d'un côté à la pile (25) et de l'autre à la roue à canon (24). Dans ce mouvement, le mobile de centre (14) et la roue à canon (24) peuvent être mis en place en tout dernier lieu.Clock movement with a plate (1), a gear train (2), a center mobile (14), an hour wheel (24) and a battery (25). The center mobile (14) comprises a shaft (15) and a wheel (19) frictionally mounted on the shaft (15). In the thickness of the movement, the wheel (19) is adjacent on one side to the stack (25) and on the other to the barrel wheel (24). In this movement, the center mobile (14) and the barrel wheel (24) can be put in place at the very last place.

Description

La présente invention concerne les mouvements de montre élec­troniques à affichage à aiguilles et plus spécialement les mou­vements qui comportent uniquement une aiguille des heures et une aiguille des minutes.The present invention relates to electronic watch movements with needle display and more particularly to movements which comprise only an hour hand and a minute hand.

Ces mouvements sont généralement destinés à équiper des montres de petites dimensions, telles que des montres dame. Dans ces mon­tres, il est souhaitable de pouvoir disposer d'une pile s'approchant autant que possible du centre de la montre. A cet effet, le mou­vement décrit dans le brevet CH 615 068 comprend une platine sur laquelle est prévu un tenon central côté cadran, Sur ce tenon pivotent la chaussée et la roue à canon, qui engrènent respecti­vement avec la roue et le pignon de minuterie. La liaison cinéma­tique avec le rotor est donc ainsi réalisée uniquement par le mobile de minuterie. Cette configuration permet de libérer le centre du mouvement et ainsi d'utiliser une pile de grand diamètre. Elle présente toutefois un inconvénient majeur. En effet, la chaussée étant en bout de chaîne cinématique de rouage et ne comportant ainsi, par la force des choses, que peu de dents, l'ébat d'en­grenage est important. De la sorte, la position de cette aiguille est peu précise, à moins d'introduire un frein sur la chaussée. Cependant, un tel frein augmente la consommationde la montre, ce qui, pour une même autonomie, implique l'usage d'une plus grande pile.These movements are generally intended to equip watches of small dimensions, such as ladies' watches. In these watches, it is desirable to be able to have a battery as close as possible to the center of the watch. To this end, the movement described in patent CH 615 068 comprises a plate on which is provided a central stud on the dial side. On this stud pivot the carriageway and the barrel wheel, which mesh respectively with the wheel and the timer pinion. The kinematic connection with the rotor is thus thus achieved only by the timer mobile. This configuration frees the center of the movement and thus uses a large diameter battery. However, it has a major drawback. Indeed, the roadway being at the end of the kinematic train of cog and thus comprising, by the force of things, only few teeth, the gear play is important. In this way, the position of this needle is imprecise, unless introducing a brake on the road. However, such a brake increases the consumption of the watch, which, for the same autonomy, implies the use of a larger battery.

Dans la demande JP 57-161 578 est décrit un mouvement avec une platine, un pont de rouage, un rotor, un mobile intermédiaire et une roue à canon. Le mobile des minutes comporte un arbre monté pivotant entre le pont et la platine et sur lequel une planche de roue est montée à friction. L'arbre occupe toute la hauteur du mouvement, tandis que la planche est logée dans un espace compris entre la platine et la pile. Cette solution permet de réaliser une montre dans laquelle la pile s'étend jusqu'au voisinage du centre, sans pour autant qu'il y ait de problème d'ébat d'engrenage du mobile des minutes. Mais ce résultat est obtenu au détriment de l'épaisseur de la pile.In application JP 57-161 578 is described a movement with a plate, a gear train, a rotor, an intermediate mobile and a cannon wheel. The minutes mobile has a shaft pivotally mounted between the bridge and the plate and on which a wheel plate is frictionally mounted. The tree occupies the entire height of the movement, while the board is housed in a space between the plate and the stack. This solution makes it possible to produce a watch in which the battery extends to the vicinity of the center, without as long as there is a problem with the gear movement of the minute wheel. But this result is obtained at the expense of the thickness of the stack.

Le but de la présente invention est de remédier à ces défauts par une disposition constructive qui maintient la possibilité d'utiliser une pile s'étendant aussi près que possible du centre du mouvement, l'épaisseur de cette pile pouvant être presque égale à la hauteur du mouvement.The object of the present invention is to remedy these defects by a constructive arrangement which maintains the possibility of using a stack extending as close as possible to the center of the movement, the thickness of this stack possibly being almost equal to the height. movement.

Ce but est atteint grâce aux caractéristiques particulières que présente le mouvement de la revendication 1.This object is achieved thanks to the particular characteristics presented by the movement of claim 1.

On va décrire ci-après à titre d'exemple deux formes d'exécution de l'objet de l'invention en se référant aux dessins annexés, dont:

  • les figures 1 et 3 sont des vues en coupe partielle de ses formes d'exécution selon une ligne passant par le centre du mou­vement et les axes des mobiles du rouage, et
  • les figures 2 et 4 des vues semblables à celles des figures 1 et 3, le mouvement étant coupé selon une ligne passant par le centre et l'axe de la tige de commande. Dans ces figures, les mêmes pièces portent les mêmes références.
Two embodiments of the subject of the invention will be described below by way of example with reference to the accompanying drawings, of which:
  • FIGS. 1 and 3 are views in partial section of its embodiments along a line passing through the center of the movement and the axes of the moving parts of the train, and
  • Figures 2 and 4 views similar to those of Figures 1 and 3, the movement being cut along a line passing through the center and the axis of the control rod. In these figures, the same parts have the same references.

Sur les figures 1 et 2, qui illustrent la première forme d'exé­cution, on voit un mouvement de montre dont le bâti comporte une platine 1 et un pont de rouage 2. Entre ces deux éléments de bâti est monté un moteur (non représenté) dont le rotor comporte un pignon qui engrène avec un premier mobile intermédiaire 3, plus précisèment avec la roue 4 de ce premier mobile intermédiaire. Le pignon 5 de ce premier mobile intermédiaire est en prise avec la roue 6 d'un second mobile intermédiaire 7 dont le pignon 8 est constitué par un disque denté en forme d'assiette chassé sur l'arbre 9 de ce mobile. Cet arbre 9 comporte deux pivots 10 engagés chacun dans une pierre 11. L'une de ces pierres est chassée dans un trou de la platine situé au centre d'une goutte 12 qui fait saillie vers l'intérieur du mouvement. La platine 1 comporte également une creusure centrale 1a dont le fond 13 est crevé pour permettre l'engrènement du disque denté 8 avec un mobile de centre 14 que l'on va décrire maintenant. Ce mobile de centre comporte un arbre 15 venu d'une pièce avec un pignon 16 et un pivot 17. Le pivot 17 est supporté par un palier 18 formé par une pierre chassée dans un trou du pont de rouage 2. Le mobile 14 comporte d'autre part une roue 19 qui comprend une planche 19a munie d'une denture, une goutte 19b, une collerette 20 adjacente à la planche 19a et entre ces deux éléments une rainure circulaire coaxiale au mobile et désignée par 21. La denture de la roue 19 comporte le même nombre de dents que le disque denté 8 et on voit que ces deux éléments sont en prise mutuellement lorsque le mobile de centre est en place. D'autre part, la collerette 20 présente un diamètre extérieur qui est légèrement supérieur à celui du pignon 16. Cette collerette est engagée dans un trou 22 ménagé dans le fond 13 de la creusure centrale 1a de la platine 1. Par conséquent, ce trou 22 ou ouverture centrale de la platine 1 est plus grand que le pignon de centre 16.In FIGS. 1 and 2, which illustrate the first embodiment, a watch movement is seen, the frame of which comprises a plate 1 and a gear train 2. Between these two frame elements is mounted a motor (not shown) the rotor of which comprises a pinion which meshes with a first intermediate mobile 3, more precisely with the wheel 4 of this first intermediate mobile. The pinion 5 of this first intermediate mobile is engaged with the wheel 6 of a second intermediate mobile 7 whose pinion 8 is constituted by a toothed disc in the form of a plate driven out on the shaft 9 of this mobile. This shaft 9 has two pivots 10 each engaged in a stone 11. One of these stones is driven into a hole in the plate located in the center of a drop 12 which projects towards the inside of the movement. The plate 1 also includes a central recess 1a, the bottom 13 of which is punctured to allow the toothed disc 8 to mesh with a moving center 14 which will now be described. This center mobile comprises a shaft 15 coming in one piece with a pinion 16 and a pivot 17. The pivot 17 is supported by a bearing 18 formed by a stone driven into a hole of the gear train 2. The mobile 14 further comprises a wheel 19 which comprises a board 19a provided with a toothing, a drop 19b, a flange 20 adjacent to the board 19a and between these two elements a circular groove coaxial with the mobile and designated by 21. The toothing of the wheel 19 has the same number of teeth as the toothed disc 8 and it can be seen that these two elements are mutually engaged when the center mobile is in place. On the other hand, the collar 20 has an outside diameter which is slightly greater than that of the pinion 16. This collar is engaged in a hole 22 formed in the bottom 13 of the central recess 1a of the plate 1. Consequently, this hole 22 or central opening of the plate 1 is larger than the center pinion 16.

La roue 19 est chassée à friction sur l'arbre 15. Ces deux pièces sont ainsi solidaires l'une de l'autre et le pivotement du mobile est assuré d'une part par la collerette 20 engagée dans le trou 22 et d'autre part par le pivot 17 engagé dans la pierre 18. Dans la forme d'exécution décrite, un verrou élastique 23 fixé par une vis dans le fond 13 de la creusure 1a de la platine 1 permet de bloquer le mobile de centre axialement, mais on le verra plus loin, cette disposition n'est pas indispensable.The wheel 19 is driven frictionally onto the shaft 15. These two parts are thus secured to one another and the pivoting of the mobile is ensured on the one hand by the flange 20 engaged in the hole 22 and on the other part by the pivot 17 engaged in the stone 18. In the embodiment described, an elastic lock 23 fixed by a screw in the bottom 13 of the recess 1a of the plate 1 makes it possible to block the moving center axially, but we as will be seen later, this provision is not essential.

Comme dans un mouvement normal, le dispositif d'affichage à aiguilles comporte une roue à canon des heures 24 qui est engagée sur l'arbre 15 du mobile 14 au-dessus de la roue 19 et en appui contre la goutte 19b. Le canon de cette roue 24 portera une aiguille des heures (non représentée) tandis que l'extrémité de l'arbre 15 du mobile 14 portera une aiguille des minutes (non représentée).As in a normal movement, the needle display device comprises a 24 hour cannon wheel which is engaged on the shaft 15 of the mobile 14 above the wheel 19 and bears against the drop 19b. The barrel of this wheel 24 will carry an hour hand (not shown) while the end of the shaft 15 of the mobile 14 will carry a minute hand (not shown).

On voit que la pile 25 qui constitue la source d'énergie du mouvement est mise en place depuis l'arrière du mouvement dans une échancrure ou un trou du point de rouage 2. Elle vient s'appuyer contre une surface biseautée 26 du fond 13 de la creusure centrale 1a de la platine 1. Entre la face supérieure de la pile 25 et la partie de la platine 1 qui s'étend au-dessus de la pile on prévoit un espace suffisant pour y loger une languette de connexion (non représentée). La roue 19 s'étend également dans cet espace, alors que la planche de la roue des heures 24 s'étend au niveau de la partie supérieure de la platine 1. Radialement, la pile 25 s'étend jusqu'à une distance du centre du mouvement qui est légèrement supérieure au rayon du pignon 16.We see that the battery 25 which constitutes the energy source of the movement is put in place from the rear of the movement in a notch or a hole in the gear point 2. It comes to rest against a beveled surface 26 of the bottom 13 of the central recess 1a of the plate 1. Between the upper face of the pile 25 and the part of the plate 1 which extends above the pile, there is sufficient space to accommodate a connection tab (not shown) ). The wheel 19 also extends in this space, while the plank of the hour wheel 24 extends at the level of the upper part of the plate 1. Radially, the stack 25 extends up to a distance from the center of the movement which is slightly greater than the radius of the pinion 16.

Les roues 19 et 24 sont également visibles à la figure 2. Le pignon 16 est en prise avec la roue 27 d'un mobile de minuterie 18 dont le pignon 29 est chassé dans une collerette 30 de diamètre légèrement supérieur à celui du pignon 29. Un trou 31 de la platine 1 assure le pivotement. Le pignon de minuterie 29 est en prise avec la roue à canon 24, tandis que la roue de minuterie 27, qui est en prise avec le pignon de centre 16, peut également être entrainée manuellement par déplacement du pignon coulant 32 sur le carré de la tige de commande 33. Celle-ci est engagée radialement dans le mouvement. Une bascule 34 et une tirette (non représentée) assurent de façon usuelle le déplacement du pignon coulant 32 lorsque l'on tire la tige 33 vers l'extérieur afin de l'amener en position de mise à l'heure. Cette construction de mouvement ne comporte donc pas de renvoi intermédiaire pour la mise à l'heure.The wheels 19 and 24 are also visible in FIG. 2. The pinion 16 is engaged with the wheel 27 of a timer mobile 18, the pinion 29 of which is driven in a flange 30 of diameter slightly greater than that of the pinion 29. A hole 31 of the plate 1 ensures the pivoting. The timer gear 29 is engaged with the barrel wheel 24, while the timer wheel 27, which is engaged with the center gear 16, can also be manually driven by moving the sliding gear 32 on the square of the control rod 33. This is engaged radially in the movement. A lever 34 and a pull tab (not shown) usually move the sliding pinion 32 when the rod 33 is pulled outwards in order to bring it into the time setting position. This movement construction therefore has no intermediate reference for setting the time.

La seconde forme d'exécution, représentée aux figures 3 et 4, diffère de la première essentiellement par le fait que le mobile de centre 14 est monté pivotant sur un tenon 35, chassé dans le pont de rouage 2. Plus précisément, le tenon 35 comporte une assiette 36 engagée à force dans un trou 37 du pont 2, ainsi qu'un pivot 38, engagé dans un trou 39 de l'arbre 15, pour assurer le pivotement de ce dernier. Le pivot 38 et l'arbre 15 comportent chacun un bossage annulaire, portant respectivement les références 40 et 41 et défi­nissant un cran axial, pour assurer le positionnement axial du mobile de centre. En outre, la roue de centre 19 ne comporte plus ni collerette ni gorge, le guidage et le positionnement du mobile des minutes étant assurés par le seul tenon 35. On notera également que, dans ce cas, la platine 1 est dépourvue de creusure en son centre, mais présente une simple ouverture centrale 1b à travers laquelle l'ensemble du mobile de centre 14 et des roues des heures et des minutes 19 et 24 peut être mis en place.The second embodiment, represented in FIGS. 3 and 4, differs from the first essentially by the fact that the center mobile 14 is pivotally mounted on a tenon 35, driven into the gear train 2. More precisely, the tenon 35 comprises a plate 36 forcibly engaged in a hole 37 of the deck 2, as well as a pivot 38, engaged in a hole 39 of the shaft 15, to ensure the pivoting of the latter. The pivot 38 and the shaft 15 each have an annular boss, bearing the references 40 and 41 respectively and defining an axial notch, to ensure the axial positioning of the center mobile. In addition, the center wheel 19 no longer has a collar or groove, the guide and the positioning of the minutes mobile being ensured by the lug only 35. It will also be noted that, in this case, the plate 1 is devoid of recess in its center, but has a simple central opening 1b through which the assembly of the center mobile 14 and the hour and minute wheels 19 and 24 can be put in place.

Dans les deux formes d'exécution décrites ci-dessus, l'aiguille des minutes est portée par un arbre entraîné par une roue de grand diamètre,c'est-à-dire la roue de centre 19, ce qui réduit considé­rablement l'ébat d'engrenage. Malgré cela, la place disponible en hauteur dans le mouvement, pour recevoir la pile, dépasse 60 % et peut atteindre 90 % de l'épaisseur du mouvement, quand bien même cette pile s'étend jusqu'au voisinage immédiat du centre du mouvement.In the two embodiments described above, the minute hand is carried by a shaft driven by a large diameter wheel, that is to say the center wheel 19, which considerably reduces the clearance gear. Despite this, the space available in height in the movement, to receive the battery, exceeds 60% and can reach 90% of the thickness of the movement, even if this stack extends to the immediate vicinity of the center of the movement.

Il faut en outre relever que cette solution offre un avantage complémentaire intéressant, puisqu'il est possible de mettre en place le mobile de centre et la roue à canon une fois que le mou­vement est par ailleurs entièrement terminé. Dans la première forme d'exécution, il suffit d'engager le pivot 17 dans le trou de la pierre 18 et de faire pénétrer la collerette 20 dans le trou 22 de la platine. Dans la seconde forme d'exécution, le mobile 14 est simplement engagé sur le pivot 38. Ceci permet de stocker des mouvements sans le mobile de centre et la roue à canon, et de choisir, au moment de la livraison, mobile et roue en fonction de la hauteur de l'aiguillage. Il pourrait même être possible de monter respectivement les aiguilles de minute et d'heure sur le mobile de centre et la roue à canon, avec interposition du cadran, avant de placer le module ainsi réalisé sur le mouvement de la montre.It should also be noted that this solution offers an additional advantage, since it is possible to set up the center mobile and the barrel wheel once the movement is also completely finished. In the first embodiment, it suffices to engage the pivot 17 in the hole of the stone 18 and to make the collar 20 penetrate into the hole 22 of the plate. In the second embodiment, the mobile 14 is simply engaged on the pivot 38. This makes it possible to store movements without the center mobile and the barrel wheel, and to choose, at the time of delivery, mobile and wheel in depending on the height of the switch. It might even be possible to mount the minute and hour hands respectively on the center mobile and the barrel wheel, with the interposition of the dial, before placing the module thus produced on the movement of the watch.

Claims (9)

1. Mouvement de montre électronique comportant une platine (1), une pile (25), un dispositif d'affichage à aiguilles, un moteur et un train d'engrenages reliant le moteur aux aiguilles, ce train comportant un mobile intermédiaire (7), un mobile de centre (14), avec une roue (19) et un pignon (16), un mobile de minuterie (28) et une roue à canon des heures (24) pivotant sur l'arbre (15) du mobile de centre (14), dans lequel la roue de centre (19) est en prise avec une denture (8) du mobile intermédiaire (7), et superposée à la pile (25), caractérisé en ce que la roue à canon (24) est montée pivotante directement au-dessus de la roue de centre (19) et en ce que la platine (1) comporte une ouverture centrale (22; 1b) plus grande que le pignon de centre (16).1. Electronic watch movement comprising a plate (1), a battery (25), a display device with needles, a motor and a gear train connecting the motor to the needles, this train comprising an intermediate mobile (7) , a center mobile (14), with a wheel (19) and a pinion (16), a timer mobile (28) and an hour canon wheel (24) pivoting on the shaft (15) of the mobile center (14), in which the center wheel (19) is engaged with a toothing (8) of the intermediate mobile (7), and superimposed on the stack (25), characterized in that the barrel wheel (24) is pivotally mounted directly above the center wheel (19) and in that the plate (1) has a central opening (22; 1b) larger than the center pinion (16). 2. Mouvement selon la revendication 1, caractérisé en ce que la roue (19) du mobile de centre (14) et la roue des heures (24) s'étendent dans une creusure (1a) de la platine (1) sur sa face extérieure.2. Movement according to claim 1, characterized in that the wheel (19) of the center mobile (14) and the hour wheel (24) extend in a recess (1a) of the plate (1) on its face outside. 3. Mouvement selon la revendication 2, caractérisé en ce que le mobile de centre (14) comporte entre sa roue (19) et son pignon (16) une collerette (20) dont le diamètre est plus grand que celui du pignon (16) et qui guide le mobile (14) en rotation dans ladite ouverture centrale (22) ménagée dans le fond (13) de la creusure (1a) de la platine (1).3. Movement according to claim 2, characterized in that the center mobile (14) comprises between its wheel (19) and its pinion (16) a flange (20) whose diameter is larger than that of the pinion (16) and which guides the mobile (14) in rotation in said central opening (22) formed in the bottom (13) of the recess (1a) of the plate (1). 4. Mouvement selon la revendication 3, caractérisé en ce que le mobile de centre (14) comporte en outre un pivot (17) engagé dans un palier (18) solidaire d'un pont de roulage (2).4. Movement according to claim 3, characterized in that the center mobile (14) further comprises a pivot (17) engaged in a bearing (18) integral with a running bridge (2). 5. Mouvement selon la revendication 1, caractérisé en ce que la roue (19) du mobile de centre (14) et le pignon (8) du mobile intermédiaire (7) ont le même nombre de dents.5. Movement according to claim 1, characterized in that the wheel (19) of the center mobile (14) and the pinion (8) of the intermediate mobile (7) have the same number of teeth. 6. Mouvement selon l'une quelconque des revendications précé­dentes, caractérisé en ce que le mobile de centre (14) est tenu en place axialement par un verrou (23) qui s'engage dans une rainure circonférentielle (21) co-axiale au mobile (14) et située entre sa roue (19) et son pignon (16).6. Movement according to any one of the preceding claims, characterized in that the center mobile (14) is held in place axially by a lock (23) which engages in a circumferential groove (21) coaxial with the mobile (14) and located between its wheel (19) and its pinion (16). 7. Mouvement d'horlogerie selon la revendication 1, caractérisé en ce qu'il comporte un pont de rouage (2) muni d'un tenon (35) s'étendant en direction de la platine (1) et engagé dans un trou axial (39) que comporte le mobile de centre (14) pour en assurer le pivotement.7. Clock movement according to claim 1, characterized in that it comprises a gear train (2) provided with a lug (35) extending in the direction of the plate (1) and engaged in an axial hole (39) which comprises the center mobile (14) to ensure pivoting. 8. Mouvement d'horlogerie selon la revendication 7, caractérisé en ce que le tenon (35) et la paroi du trou (39) comportent chacun un bossage annulaire (40, 41) définissant un cran, pour assurer un positionnement axial du mobile de centre (14) sur le tenon (35).8. Clock movement according to claim 7, characterized in that the tenon (35) and the wall of the hole (39) each comprise an annular boss (40, 41) defining a notch, to ensure an axial positioning of the mobile of center (14) on the post (35). 9. Mobile d'horlogerie comprenant un arbre (15) avec un pivot (17) à l'une de ses extrémités, un pignon (16) et une roue (19) et dans lequel le pignon (16) et l'arbre (15) sont faits d'une seule pièce et la roue (19) est une pièce distincte engagée sur l'arbre, caractérisé en ce que la roue (19) est formée d'une pièce avec une collerette de pivotement (20) dont le diamètre est plus grand que celui du pignon (16) et en ce que cette collerette (20) est située entre la roue (19) et le pignon (16) de manière à faciliter la mise en place du mobile (14).9. Clockwork mobile comprising a shaft (15) with a pivot (17) at one of its ends, a pinion (16) and a wheel (19) and in which the pinion (16) and the shaft ( 15) are made in one piece and the wheel (19) is a separate piece engaged on the shaft, characterized in that the wheel (19) is formed in one piece with a pivoting flange (20) the diameter is larger than that of the pinion (16) and in that this flange (20) is located between the wheel (19) and the pinion (16) so as to facilitate the positioning of the mobile (14).
EP87111177A 1986-08-07 1987-08-03 Works for electronic watch provided with hands for the display Expired EP0255712B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH317686 1986-08-07
CH3176/86 1986-08-07

Publications (2)

Publication Number Publication Date
EP0255712A1 true EP0255712A1 (en) 1988-02-10
EP0255712B1 EP0255712B1 (en) 1989-11-29

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ID=4250264

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Application Number Title Priority Date Filing Date
EP87111177A Expired EP0255712B1 (en) 1986-08-07 1987-08-03 Works for electronic watch provided with hands for the display

Country Status (6)

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US (1) US4893292A (en)
EP (1) EP0255712B1 (en)
JP (1) JP2551960B2 (en)
DE (1) DE3761063D1 (en)
HK (1) HK2195A (en)
WO (1) WO1988001071A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6640664B2 (en) * 2001-08-06 2003-11-04 Seitz Corporation Power assembly and method of making same

Citations (4)

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DE2658782A1 (en) * 1975-12-25 1977-07-14 Citizen Watch Co Ltd MOVEMENT FOR A SMALL SIZE ANALOG QUARTZ WATCH
US4249251A (en) * 1979-10-29 1981-02-03 Timex Corporation Gear train for timepiece with a stepping motor
US4335454A (en) * 1978-11-17 1982-06-15 Kabushiki Kaisha Suwa Seikosha Gear train mechanism for a timepiece
EP0082110A1 (en) * 1981-12-16 1983-06-22 Fabriques D'horlogerie De Fontainemelon S.A. Electronic watch with or without a seconds hand

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FR2436505A1 (en) * 1978-09-12 1980-04-11 Radiotechnique Compelec OPTOELECTRONIC DEVICE WITH COUPLED TRANSMITTER AND RECEIVER
US4496246A (en) * 1980-10-21 1985-01-29 Kabushiki Kaisha Suwa Seikosha Timepiece construction
JPS57161578A (en) * 1981-03-30 1982-10-05 Seiko Epson Corp Wheel train structure of battery timepiece
JPS5918385U (en) * 1982-07-27 1984-02-03 日本航空電子工業株式会社 Electromagnetic shield structure of connector

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Publication number Priority date Publication date Assignee Title
DE2658782A1 (en) * 1975-12-25 1977-07-14 Citizen Watch Co Ltd MOVEMENT FOR A SMALL SIZE ANALOG QUARTZ WATCH
US4335454A (en) * 1978-11-17 1982-06-15 Kabushiki Kaisha Suwa Seikosha Gear train mechanism for a timepiece
US4249251A (en) * 1979-10-29 1981-02-03 Timex Corporation Gear train for timepiece with a stepping motor
EP0082110A1 (en) * 1981-12-16 1983-06-22 Fabriques D'horlogerie De Fontainemelon S.A. Electronic watch with or without a seconds hand

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Title
PATENT ABSTRACTS OF JAPAN, vol. 6, no. 265 (P-165)[1143], 24 décembre 1982; & JP-A-57 161 578 (SUWA SEIKOSHA K.K.) 05-10-1982 *

Also Published As

Publication number Publication date
JP2551960B2 (en) 1996-11-06
WO1988001071A1 (en) 1988-02-11
US4893292A (en) 1990-01-09
DE3761063D1 (en) 1990-01-04
EP0255712B1 (en) 1989-11-29
JPH01501246A (en) 1989-04-27
HK2195A (en) 1995-01-13

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