EP3904962A1 - Device for indexing and device for displaying a time or time-derived indication - Google Patents

Abstract

Jumper device (80) for a watchmaking device (100) comprising: - at least a first arm (81) comprising a first spout (81a) for positioning a first mobile (10), - at least a second arm (82) comprising a second spout (82a) for positioning a second mobile (20), - an elastic return element (84) of the first arm and of the second arm in positioning configurations of the first and second mobile, and - a rocker ( 83; 83 ') interfaced between: o on the one hand, the elastic return element, and o on the other hand, the first and second arms.

Description

The invention relates to a device for displaying a time indication or a derivative of the time. The invention also relates to a jumper or indexing device. The invention also relates to a watch movement comprising such a display device and / or such a jumper or indexing device. The invention also relates to a timepiece comprising such a display device and / or such a jumper or indexing device, or such a watch movement. The invention finally relates to a method of operating such a display device or such a watch movement or such a timepiece.

The “big date” mechanisms known from the prior art systematically use a control wheel or a disc of 31 teeth, or a control wheel or a disc making a complete revolution in 31 steps, which are bulky and which, consequently, do not facilitate the implementation of such a mechanism in a watch movement. In addition, the sequencing of the control device allowing the drive of the tens and units disks is often complex and offers little freedom as to the positioning of the moving parts in the plane.

All the solutions identified use either a control unit or a 31-tooth disc. By way of example, the documents CH310559 and WO9850829 present the two main drive concepts known today for “big date” mechanisms.

The document CH310559 describes the arrangement of a control mobile driving a first display mobile for the units, as well as a second mobile display for the tens. These two display mobiles are arranged side by side. The command mobile moves forward one step per 24 hours and makes a complete revolution in 31 steps. The mobile control comprises three toothings distributed over three distinct levels. A first set of teeth is provided for its own drive, a second set of teeth having 30 teeth is provided for driving the units display mobile, and a third set of 4 teeth is provided for driving the tens display mobile. . The arrangement on three distinct levels and the fact of implementing a control mobile sequencing the jumps over 31 steps make this solution particularly bulky and restrictive for its installation in a watch movement.

The second document WO9850829 describes the use of a control disc advancing one step per 24 hours and driving a first display mobile for the units, as well as a second display mobile for the tens. These two display mobiles are arranged side by side. The control disc comprises two teeth arranged on two distinct levels. The first set of teeth comprises 31 teeth, 30 of which are active for driving the unit display mobile. The second set of teeth comprises 31 teeth, 4 of which are active for driving the tens display mobile. The space requirement in the plane of such a disc is very important. It is similar to a date disc, which leaves practically no freedom as to the arrangement of the two display mobiles in a watch movement. In addition, the fact of using a disc sequencing the jumps over 31 steps makes this solution particularly restrictive for its installation in a watch movement.

As described above, a "big date" mechanism generally comprises two display mobiles for displaying the date. date, a first for the units display and a second for the tens display. Each of these two display mobiles requires an angular position indexing device allowing respectively indexing of the units and tens digits in the counter. The term “indexing” of a mobile is preferably understood to mean the maintenance of a mobile according to an angular position determined from among a finite number of angular positions of this mobile, the positions being separated from each other by angles, in particular separated them. from each other by a fixed angle.

The problem with this type of "big date" mechanism is that the energy consumption of the movement, when the date changes, depends in particular on the date to be passed. Indeed, depending on the sequencing of the date display mechanism, it is necessary to drive one or two “big date” display mobiles. With a conventional mobile indexing device, the movement must overcome one or simultaneously two jumpers or levers each constituting indexing devices, which generates an energy consumption that may vary depending on the date to be passed. When the movement has to overcome two jumpers or levers, there may be less energy available for the regulating organ which, consequently, can generate possible drops in amplitudes at the level of this same regulating organ. These amplitude variations must be as low as possible, in order to have the most optimal chronometric performance possible.

The various documents identified in the state of the art describe mobile indexing devices which implement two levers but which are incompatible with a "big date" mechanism and / or do not offer a solution making it possible to have equivalent or substantially equivalent energy consumption whether there are one or more indexing levers to be actuated.

The document CH986270 describes a calendar comprising a date indicator and a day of the week indicator. This mobile indexing device comprises a lever with two jaws integral with one another for positioning the two indicators, an elastic return element and an eccentric integral with the lever. The eccentric makes it possible to adjust the relative position of the two nozzles and consequently to adjust the angular indexing position of the two indicators. This solution cannot be implemented for the indexing of a "big date" mechanism because a degree of freedom between the two slats is necessary for the latter to be able to operate independently of one another.

The document US4048795 describes a calendar comprising a mobile indexing device for positioning a date indicator and a day of the week indicator comprising a single lever provided with two slats and two elastic return elements. In order to offer an additional degree of freedom to the indexing device, the lever is also composed of a groove provided to cooperate with a pin integral with the frame of the movement, thus constituting a sliding connection. Although the nozzles are integral with a single lever, this additional degree of freedom allows the indicators to be able to operate independently. Indeed, thanks to this sliding connection, when only one of the two indicators is actuated, during for example a first operation of adjusting the calendar, the spout cooperating with the other indicator remains in the teeth of the latter and serves pivot to the lever. In this case, only one of the two elastic return elements is requested. The operation is similar when it is the other indicator which is activated during, for example, a second operation of setting the calendar. On the other hand, when the two indicators are actuated simultaneously, during the conventional operation of the calendar, the pivoting of the lever is done around the pin and the two elastic return elements of the lever. are solicited. This indexing device does not present a solution making it possible to actuate one and the same return element when the two indicators are actuated simultaneously. Furthermore, it does not make it possible to obtain equivalent or substantially equivalent energy consumption regardless of the number of display mobiles actuated.

The document FR2120056 discloses a calendar comprising a mobile indexing device comprising a lever provided with two slats which can be actuated independently of one another. It is described that this mobile indexing device comprises at least one spout intended to index the date indicator or the day of the week indicator and elastic parts oriented in two directions allowing the device to be resiliently returned. With such a device, the level of winding of the elastic parts of the mobile indexing device, and consequently the energy consumption, are dependent on the number of slats actuated. This solution is therefore not optimal.

According to a first aspect, the aim of the invention is to provide a device for displaying a time indication or derived from the time which makes it possible to remedy the aforementioned drawbacks and to improve the devices known from the prior art. In particular, the invention provides a device for displaying a time indication or time derivative providing great flexibility or flexibility in the arrangement of a display mechanism and making it possible to obtain a construction with a very high small footprint in the plan and equipped with high operating safety.

According to a second aspect, the aim of the invention is to provide a jumper or position indexing device making it possible to remedy the aforementioned drawbacks and to improve the devices. known from the prior art. In particular, the invention proposes a jumper or position indexing device having a simple structure and making it possible to implement two levers operating independently of one another and, moreover, to obtain a restitution force. an equivalent or substantially equivalent elastic return element regardless of the number of levers or slats to be actuated.

1. 1. Dispositif 100 d'affichage d'une indication horaire ou dérivée de l'heure comprenant :
   • un premier mobile d'affichage 10 incluant une première denture 11b, une deuxième denture 11c et un premier disque 12 portant des chiffres 13 destinés à indiquer les unités de l'indication horaire ou dérivée de l'heure,
   • un deuxième mobile d'affichage 20 incluant une troisième denture 21b, une quatrième denture 21c et un deuxième disque 22 portant des chiffres 23 destinés à indiquer les dizaines de l'indication horaire ou dérivée de l'heure, et
   • un mécanisme 90 d'entraînement des premier et deuxième mobiles, le mécanisme comprenant :
     • ▪ un premier mobile 30 de commande comprenant une cinquième denture 30a agencée de sorte à coopérer par obstacle, notamment par engrènement, avec la première denture et la troisième denture, et
     • ▪ un deuxième mobile 40 de commande comprenant une sixième denture 40a agencée de sorte à coopérer par obstacle, notamment par engrènement, avec la deuxième denture et la quatrième denture.
2. 2. Dispositif d'affichage selon la proposition 1, caractérisé en ce que les première, troisième et cinquième dentures présentent sensiblement un même premier diamètre primitif et/ou en ce que les deuxième, quatrième et sixième dentures présentent sensiblement un même deuxième diamètre primitif.
3. 3. Dispositif d'affichage selon la proposition 2, caractérisé en ce que les premier et deuxième diamètres primitifs sont égaux ou sensiblement égaux.
4. 4. Dispositif d'affichage selon l'une des propositions 1 à 3, caractérisé en ce que le premier mobile de commande 30 et le deuxième mobile de commande 40 sont agencés de manière coaxiale selon un axe A3.
5. 5. Dispositif d'affichage selon l'une des propositions 1 à 4, caractérisé en ce que le mécanisme 90 d'entraînement comprend une roue d'entraînement 60 comprenant une septième denture 61 agencée de sorte à mener, directement ou indirectement, le premier mobile de commande.
6. 6. Dispositif d'affichage selon l'une des propositions 1 à 5, caractérisé en ce que le deuxième mobile de commande est agencé de sorte à être mené par le premier mobile d'affichage et/ou par le deuxième mobile d'affichage.
7. 7. Dispositif d'affichage selon l'une des propositions 1 à 6, caractérisé en ce que le mécanisme 90 d'entraînement comprend un mobile intermédiaire 50 coopérant par obstacle, notamment par engrènement, avec la septième denture de la roue d'entraînement 60 et avec la cinquième denture du premier mobile 30 de commande et/ou en ce que le mécanisme 90 d'entraînement comprend un mobile de correction 70 agencé pour actionner directement ou indirectement la cinquième denture du premier mobile 30.
8. 8. Dispositif d'affichage selon l'une des propositions 1 à 7, caractérisé en ce que le mécanisme 90 d'entraînement est du type à saut instantané ou du type à saut semi-instantané ou du type traînant.
9. 9. Dispositif d'affichage selon l'une des propositions 1 à 8, caractérisé en ce que la première denture 11b comprend 9 dents, la deuxième denture 11c comprend 2 dents, la troisième denture 21b comprend 4 dents et la quatrième denture 21c comprend 6 dents.
10. 10. Dispositif d'affichage selon l'une des propositions 1 à 8, caractérisé en ce que la première denture 11b comprend 9 dents, la deuxième denture 11c comprend 2 dents, la troisième denture 21b comprend 7 dents et la quatrième denture 21c comprend 8 dents.
11. 11. Dispositif d'affichage selon l'une des propositions 1 à 10, caractérisé en ce que le premier disque comprend la série de chiffres suivante « 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 » et/ou en ce que le deuxième disque comprend la série de chiffres suivante « 0, 0, 1, 1, 1, 2, 2, 2, 3, 3 ».
12. 12. Dispositif d'affichage selon l'une des propositions 1 à 11, caractérisé en ce que le dispositif d'affichage d'une indication horaire ou dérivée de l'heure est un dispositif d'affichage de quantième, notamment de type « grande date », le premier disque étant un disque des unités et le deuxième disque étant un disque des dizaines.
    Selon le premier aspect de l'invention, un mouvement horloger est défini par la proposition qui suit.
13. 13. Mouvement horloger 110 comprenant un dispositif 100 selon l'une des propositions 1 à 12.
    Selon le premier aspect de l'invention, une pièce d'horlogerie est définie par la proposition qui suit.
14. 14. Pièce d'horlogerie 120, notamment montre, en particulier montre bracelet, comprenant un dispositif 100 selon l'une des propositions 1 à 13 et/ou un mouvement horloger 110 selon la proposition précédente.
    Selon le premier aspect de l'invention, un procédé de fonctionnement d'un dispositif d'affichage est défini par la proposition qui suit.
15. 15. Procédé de fonctionnement d'un dispositif 100 selon l'une des propositions 1 à 12 ou d'un mouvement horloger 110 selon la proposition 13 ou d'une pièce d'horlogerie 120 selon la proposition 14, caractérisé en ce qu'il comprend :
    • une étape d'entraînement du premier mobile d'affichage 10 par le premier mobile de commande 30, et/ou
    • simultanément, une étape d'entraînement du premier mobile d'affichage 10 par le premier mobile de commande 30 et une étape d'entraînement du deuxième mobile d'affichage 20 par le premier mobile d'affichage 10 via le deuxième mobile de commande 40, et/ou
    • une étape d'entraînement du deuxième mobile d'affichage 20 par le premier mobile de commande 30, et/ou
    • simultanément, une étape d'entraînement du deuxième mobile d'affichage 20 par le premier mobile de commande 30 et une étape d'entraînement du premier mobile d'affichage 10 par le deuxième mobile d'affichage 20 via le deuxième mobile de commande 40.
    Selon le deuxième aspect de l'invention, un dispositif de sautoir est défini par les propositions qui suivent.
16. 16. Dispositif 80 de sautoir pour dispositif horloger 100 comprenant :
    • au moins un premier bras 81 comprenant un premier bec 81a de positionnement d'un premier mobile 10,
    • au moins un deuxième bras 82 comprenant un deuxième bec 82a de positionnement d'un deuxième mobile 20,
    • un élément de rappel élastique 84 du premier bras et du deuxième bras dans des configurations de positionnement des premier et deuxième mobiles, et
    • une bascule 83 ; 83' interfacée entre :
      • ∘ d'une part, l'élément de rappel élastique, et
      • ∘ d'autre part, les premier et deuxième bras.
17. 17. Dispositif selon la proposition 16, caractérisé en ce que le dispositif est un dispositif d'indexation en position angulaire d'un premier mobile 10 mobile en rotation et d'un deuxième mobile 20 mobile en rotation.
18. 18. Dispositif selon la proposition 16 ou 17, caractérisé en ce que le dispositif comprend un bâti 99, en ce que le premier bras est monté pivotant relativement au bâti 99 et en ce que le deuxième bras est monté pivotant relativement au bâti 99, les premier et deuxième bras étant notamment montés pivotant autour d'un même axe A5.
19. 19. Dispositif selon l'une des propositions 16 à 18, caractérisé en ce que le dispositif comprend un bâti 99 et en ce que la bascule 83 ; 83' est montée mobile relativement au bâti avec :
    • un degré de liberté en translation, et
    • un degré de liberté en rotation.
20. 20. Dispositif selon l'une des propositions 16 à 19, caractérisé en ce que la plus grande dimension de la bascule est au moins 2 fois, voire 3 fois, inférieure à la plus grande dimension du premier bras ou à la plus grande dimension du deuxième bras.
21. 21. Dispositif selon l'une des propositions 16 à 20, caractérisé en ce que le dispositif comprend un bâti 99 et en ce que le dispositif comprend :
    • une rainure 85 réalisée sur la bascule, respectivement sur le bâti, et
    • une goupille 86 réalisée ou fixée sur le bâti, respectivement sur la bascule,
      la rainure et la goupille coopérant l'une avec l'autre pour constituer une liaison mécanique présentant les degrés de liberté en translation et en rotation.
22. 22. Dispositif selon l'une des propositions 16 à 21, caractérisé en ce que l'élément de rappel élastique 84 comprend une lame ressort.
23. 23. Dispositif selon l'une des propositions 16 à 22, caractérisé en ce que la bascule 83' ou l'élément de rappel élastique comprend une surface de came 89 agencée pour armer l'élément de rappel élastique 84 lorsque la bascule pivote en rotation.
    Selon le deuxième aspect de l'invention, un dispositif d'affichage est défini par les propositions qui suivent.
24. 24. Dispositif d'affichage des quantièmes 100, en particulier dispositif d'affichage « grande date », comprenant un dispositif de sautoir selon l'une des propositions 16 à 23.
25. 25. Dispositif d'affichage des quantièmes 100 selon la proposition 24, comprenant un premier mobile 10 d'affichage des unités et un deuxième mobile 20 d'affichage des dizaines.
    Selon le deuxième aspect de l'invention, un mouvement horloger est défini par la proposition qui suit.
26. 26. Mouvement horloger 110 comprenant un dispositif selon l'une des propositions 16 à 25.
    Selon le deuxième aspect de l'invention, une pièce d'horlogerie est définie par la proposition qui suit.
27. 27. Pièce d'horlogerie 120, notamment montre, en particulier montre bracelet, comprenant un dispositif selon l'une des propositions 16 à 25 et/ou un mouvement horloger 110 selon la proposition 26.
    Selon le deuxième aspect de l'invention, un procédé de fonctionnement d'un dispositif est défini par les propositions qui suivent.
28. 28. Procédé de fonctionnement d'un dispositif 80, 100 selon l'une des propositions 16 à 25 ou d'un mouvement horloger 110 selon la proposition 26 ou d'une pièce d'horlogerie 120 selon la proposition 27, caractérisé en ce qu'il comprend :
    • une étape de déplacement du premier bras et/ou du deuxième bras sous l'effet du mouvement du premier mobile 10 et/ou du deuxième mobile 20 et une étape d'armage de l'élément de rappel élastique 84 sous l'effet d'un déplacement de la bascule 83 ; 83',
    • une étape de restitution de l'élément de rappel élastique 84 provoquant un entraînement en rotation du premier mobile 10 et/ou du deuxième mobile 20 par l'intermédiaire de la bascule 83 ; 83' et du premier bras et/ou du deuxième bras.
29. 29. Procédé selon la proposition 28, caractérisé en ce que l'étape d'armage présente une même intensité dans au moins deux des situations qui suivent :
    • l'armage est provoqué par un déplacement du premier mobile,
    • l'armage est provoqué par un déplacement du deuxième mobile,
    • l'armage est provoqué par un déplacement du premier et du deuxième mobile.

According to the first aspect of the invention, a display device is defined by the following proposals.

1. 1. Device 100 for displaying a time indication or time derivative comprising:
   • a first display mobile 10 including a first toothing 11b, a second toothing 11c and a first disc 12 bearing numbers 13 intended to indicate the units of the time indication or derived from the time,
   • a second display mobile 20 including a third toothing 21b, a fourth toothing 21c and a second disc 22 bearing numbers 23 intended to indicate the tens of the time indication or derived from the hour, and
   • a mechanism 90 for driving the first and second mobile units, the mechanism comprising:
     • ▪ a first mobile control wheel 30 comprising a fifth toothing 30a arranged so as to cooperate by obstacle, in particular by meshing, with the first toothing and the third toothing, and
     • ▪ a second mobile 40 of control comprising a sixth toothing 40a arranged so as to cooperate by obstacle, in particular by meshing, with the second toothing and the fourth toothing.
2. 2. Display device according to proposal 1, characterized in that the first, third and fifth teeth have substantially the same first pitch diameter and / or in that the second, fourth and sixth teeth have substantially the same second pitch diameter.
3. 3. Display device according to proposal 2, characterized in that the first and second pitch diameters are equal or substantially equal.
4. 4. Display device according to one of proposals 1 to 3, characterized in that the first control mobile 30 and the second control mobile 40 are arranged coaxially along an axis A3.
5. 5. Display device according to one of proposals 1 to 4, characterized in that the drive mechanism 90 comprises a drive wheel 60 comprising a seventh toothing 61 arranged so as to lead, directly or indirectly, the first mobile command.
6. 6. Display device according to one of proposals 1 to 5, characterized in that the second control mobile is arranged so as to be driven by the first display mobile and / or by the second display mobile.
7. 7. Display device according to one of proposals 1 to 6, characterized in that the drive mechanism 90 comprises an intermediate mobile 50 cooperating by obstacle, in particular by meshing, with the seventh toothing of the drive wheel 60 and with the fifth toothing of the first mobile 30 control and / or in that the drive mechanism 90 comprises a correction mobile 70 arranged to directly or indirectly actuate the fifth toothing of the first mobile 30.
8. 8. Display device according to one of proposals 1 to 7, characterized in that the drive mechanism 90 is of the instantaneous jump type or of the semi-instantaneous jump type or of the trailing type.
9. 9. Display device according to one of proposals 1 to 8, characterized in that the first set of teeth 11b comprises 9 teeth, the second set of teeth 11c comprises 2 teeth, the third set of teeth 21b comprises 4 teeth and the fourth set of teeth 21c comprises 6 teeth.
10. 10. Display device according to one of proposals 1 to 8, characterized in that the first set of teeth 11b comprises 9 teeth, the second set of teeth 11c comprises 2 teeth, the third set of teeth 21b comprises 7 teeth and the fourth set of teeth 21c comprises 8 teeth.
11. 11. Display device according to one of proposals 1 to 10, characterized in that the first disc comprises the following series of digits "0, 1, 2, 3, 4, 5, 6, 7, 8, 9" and / or in that the second disk comprises the following series of digits "0, 0, 1, 1, 1, 2, 2, 2, 3, 3".
12. 12. Display device according to one of proposals 1 to 11, characterized in that the display device of a time indication or time derivative is a date display device, in particular of the "large" type. date ”, with the first disk being a units disk and the second disk being a tens disk.
    According to the first aspect of the invention, a watch movement is defined by the following proposition.
13. 13. Watch movement 110 comprising a device 100 according to one of proposals 1 to 12.
    According to the first aspect of the invention, a timepiece is defined by the following proposition.
14. 14. Timepiece 120, in particular a watch, in particular a wristwatch, comprising a device 100 according to one of the proposals 1 to 13 and / or a watch movement 110 according to the preceding proposal.
    According to the first aspect of the invention, a method of operating a display device is defined by the following proposition.
15. 15. Operating method of a device 100 according to one of proposals 1 to 12 or of a watch movement 110 according to proposal 13 or of a timepiece 120 according to proposal 14, characterized in that it understand :
    • a step of driving the first display mobile 10 by the first control mobile 30, and / or
    • simultaneously, a step of driving the first display mobile 10 by the first control mobile 30 and a step for driving the second display mobile 20 by the first display mobile 10 via the second control mobile 40, and or
    • a step of driving the second display mobile 20 by the first control mobile 30, and / or
    • simultaneously, a step of driving the second display mobile 20 by the first control mobile 30 and a step drive of the first display mobile 10 by the second display mobile 20 via the second control mobile 40.
    According to the second aspect of the invention, a jumper device is defined by the following proposals.
16. 16. A jumper device 80 for a watch device 100 comprising:
    • at least a first arm 81 comprising a first beak 81a for positioning a first mobile 10,
    • at least one second arm 82 comprising a second beak 82a for positioning a second mobile 20,
    • an elastic return element 84 of the first arm and of the second arm in positioning configurations of the first and second wheels, and
    • a flip-flop 83; 83 'interfaced between:
      • ∘ on the one hand, the elastic return element, and
      • ∘ on the other hand, the first and second arms.
17. 17. Device according to proposal 16, characterized in that the device is a device for indexing the angular position of a first mobile 10 mobile in rotation and a second mobile 20 mobile in rotation.
18. 18. Device according to proposal 16 or 17, characterized in that the device comprises a frame 99, in that the first arm is mounted to pivot relative to the frame 99 and in that the second arm is mounted to pivot relative to the frame 99, the first and second arms being in particular mounted to pivot about the same axis A5.
19. 19. Device according to one of proposals 16 to 18, characterized in that the device comprises a frame 99 and in that the rocker 83; 83 'is movable rise relative to the frame with:
    • a degree of freedom in translation, and
    • a degree of freedom in rotation.
20. 20. Device according to one of proposals 16 to 19, characterized in that the largest dimension of the rocker is at least 2 times, or even 3 times, less than the largest dimension of the first arm or the largest dimension of the lever. second arm.
21. 21. Device according to one of proposals 16 to 20, characterized in that the device comprises a frame 99 and in that the device comprises:
    • a groove 85 made on the rocker, respectively on the frame, and
    • a pin 86 produced or fixed on the frame, respectively on the rocker,
      the groove and the pin cooperating with one another to form a mechanical connection having the degrees of freedom in translation and in rotation.
22. 22. Device according to one of proposals 16 to 21, characterized in that the elastic return element 84 comprises a leaf spring.
23. 23. Device according to one of proposals 16 to 22, characterized in that the rocker 83 'or the elastic return element comprises a cam surface 89 arranged to arm the elastic return element 84 when the rocker rotates in rotation. .
    According to the second aspect of the invention, a display device is defined by the following proposals.
24. 24. Date display device 100, in particular “big date” display device, comprising a jumper device according to one of proposals 16 to 23.
25. 25. Date display device 100 according to proposal 24, comprising a first unit 10 for displaying the units and a second mobile 20 for displaying the tens.
    According to the second aspect of the invention, a watch movement is defined by the following proposition.
26. 26. Watch movement 110 comprising a device according to one of proposals 16 to 25.
    According to the second aspect of the invention, a timepiece is defined by the following proposition.
27. 27. Timepiece 120, in particular a watch, in particular a wristwatch, comprising a device according to one of proposals 16 to 25 and / or a horological movement 110 according to proposal 26.
    According to the second aspect of the invention, a method of operating a device is defined by the following proposals.
28. 28. Operating method of a device 80, 100 according to one of proposals 16 to 25 or of a watch movement 110 according to proposal 26 or of a timepiece 120 according to proposal 27, characterized in that 'He understands :
    • a step of moving the first arm and / or the second arm under the effect of the movement of the first mobile 10 and / or the second mobile 20 and a step of winding the elastic return element 84 under the effect of a movement of the rocker 83; 83 ',
    • a step of restoring the elastic return element 84 causing the first mobile 10 and / or the second mobile 20 to be driven in rotation by means of the latch 83; 83 'and the first arm and / or the second arm.
29. 29. Method according to proposition 28, characterized in that the winding step has the same intensity in at least two of the following situations:
    • the winding is caused by a displacement of the first mobile,
    • the winding is caused by a displacement of the second mobile,
    • the arming is caused by a displacement of the first and of the second mobile.

Unless there is a technical or logical incompatibility, all combinations of characteristics of the first and second aspects are envisaged.

• La figure 1 représente un premier mode de réalisation d'une pièce d'horlogerie.
• La figure 2 est une vue de détail d'un premier mode de réalisation d'un dispositif d'affichage d'une indication horaire ou dérivée de l'heure.
• La figure 3 est une vue en coupe (selon le plan I-I de la figure 2) du premier mode de réalisation du dispositif d'affichage d'une indication horaire ou dérivée de l'heure.
• La figure 4 est une vue en coupe (selon le plan II-II de la figure 2) du premier mode de réalisation du dispositif d'affichage d'une indication horaire ou dérivée de l'heure.
• La figure 5 représente une première variante du premier mode de réalisation d'un dispositif d'affichage d'une indication horaire ou dérivée de l'heure en vue en coupe (selon deux vues en coupe selon les plans III-III et IV-IV des figures 3 et 4).
• La figure 6 représente une deuxième variante du premier mode de réalisation d'un dispositif d'affichage d'une indication horaire ou dérivée de l'heure en vue en coupe (selon deux vues en coupe selon les plans III-III et IV-IV des figures 3 et 4).
• La figure 7 représente des illustrations du fonctionnement de la première variante du premier mode de réalisation d'un dispositif d'affichage.
• La figure 8 représente des illustrations du fonctionnement de la deuxième variante du premier mode de réalisation d'un dispositif d'affichage.
• La figure 9 représente un deuxième mode de réalisation d'une pièce d'horlogerie.
• La figure 10 représente une vue de détail d'un premier mode de réalisation d'un dispositif d'indexation.
• Les figures 11 à 13 représentent des vues explicatives du fonctionnement du premier mode de réalisation du dispositif d'indexation.
• Les figures 14 à 16 représentent des vues explicatives du fonctionnement d'un deuxième mode de réalisation du dispositif d'indexation.

The accompanying drawings show, by way of example, two embodiments of a timepiece.

• The figure 1 shows a first embodiment of a timepiece.
• The figure 2 is a detail view of a first embodiment of a device for displaying a time indication or time derivative.
• The figure 3 is a sectional view (according to plan II of the figure 2 ) of the first embodiment of the device for displaying a time indication or derived from the time.
• The figure 4 is a sectional view (according to plan II-II of the figure 2 ) of the first embodiment of the device for displaying a time indication or derived from the time.
• The figure 5 shows a first variant of the first embodiment of a device for displaying a time indication or time derivative in sectional view (according to two sectional views according to the plans III-III and IV-IV of the figures 3 and 4 ).
• The figure 6 shows a second variant of the first embodiment of a device for displaying a time indication or time derivative in sectional view (according to two sectional views according to the plans III-III and IV-IV of the figures 3 and 4 ).
• The figure 7 shows illustrations of the operation of the first variant of the first embodiment of a display device.
• The figure 8 shows illustrations of the operation of the second variant of the first embodiment of a display device.
• The figure 9 shows a second embodiment of a timepiece.
• The figure 10 shows a detail view of a first embodiment of an indexing device.
• The figures 11 to 13 represent explanatory views of the operation of the first embodiment of the indexing device.
• The figures 14 to 16 represent explanatory views of the operation of a second embodiment of the indexing device.

A first embodiment of a timepiece 120 is described below with reference to figures 1 to 8 .

The timepiece 120 is for example a watch, in particular a wristwatch.

The timepiece 120 comprises a timepiece movement 110. The timepiece movement is intended to be mounted in a timepiece case in order to protect it from the external environment.

The watch movement 110 can be an electronic movement or a mechanical movement, in particular an automatic movement.

The watch movement comprises a device 100 for displaying a time indication or time derivative. The hourly or time-derived indication is preferably an indication of dates. However, the indication may be of any other nature, in particular a numerical indication with two or more digits such as an indication of the years or an indication of the months or an indication of the weeks or an indication of the hours or an indication of the minutes or an indication of the seconds.

In this first embodiment, the display device is for example a date display device of the “big date” type.

• un premier mobile d'affichage 10 incluant une première denture 11b, une deuxième denture 11c et un premier disque 12 portant des chiffres 13 destinés à indiquer les unités de l'indication horaire ou dérivée de l'heure,
• un deuxième mobile d'affichage 20 incluant une troisième denture 21b, une quatrième denture 21c et un deuxième disque 22 portant des chiffres 23 destinés à indiquer les dizaines de l'indication horaire ou dérivée de l'heure, et
• un mécanisme 90 d'entraînement des premier et deuxième mobiles.

The device 100 for displaying an hourly or time-derived indication comprises:

• a first display mobile 10 including a first toothing 11b, a second toothing 11c and a first disc 12 bearing numbers 13 intended to indicate the units of the time indication or derived from the time,
• a second display mobile 20 including a third toothing 21b, a fourth toothing 21c and a second disc 22 bearing numbers 23 intended to indicate the tens of the time indication or derived from the hour, and
• a mechanism 90 for driving the first and second mobile.

• un premier mobile 30 de commande comprenant une cinquième denture 30a agencée de sorte à coopérer par obstacle, notamment par engrènement, avec la première denture et la troisième denture, et
• un deuxième mobile 40 de commande comprenant une sixième denture 40a agencée de sorte à coopérer par obstacle, notamment par engrènement, avec la deuxième denture et la quatrième denture.

The drive mechanism 90 comprises:

• a first control wheel 30 comprising a fifth toothing 30a arranged so as to cooperate by obstacle, in particular by meshing, with the first toothing and the third toothing, and
• a second mobile 40 of control comprising a sixth toothing 40a arranged so as to cooperate by obstacle, in particular by meshing, with the second toothing and the fourth toothing.

The first display mobile 10 is rotated about a first axis A1. The second display mobile 20 is rotated about a second axis A2. The first and second axes are preferably parallel or substantially parallel. The first and second mobiles are preferably arranged side by side so as to position a units digit of the first mobile and a tens digit of the second mobile in proximity to one another, to indicate a value or information such as a date value. The device may include a mark, such as an aperture made in a dial or as a plate of a color contrasting with that of the numbers 13 and 23, respectively of the disks 12 and 22, making it possible to indicate or define a reading zone of information.

The display device 100 further comprises an indexing system 80 in the angular position of the first and second display mobiles. This system comprises arms 81 and 82 respectively provided for angularly indexing the first and second display wheels, as described below.

The first display mobile 10 comprises a first pinion 11 comprising in particular the first toothing 11b and the second toothing 11c. The first toothing is for example provided with nine teeth. The first set of teeth consists for example of a set of ten teeth, equally distributed around the axis A1, one of the teeth of which has been removed or has not been formed. In other words, it is a set of ten teeth with one tooth missing. The second set of teeth 11c is for example provided with two teeth. The second set of teeth consists for example of a set of ten teeth, equally distributed around the axis A1, of which eight teeth have been removed or have not been formed. In other words, it is a set of ten teeth of which eight teeth are missing. The two teeth of the second set of teeth are preferably juxtaposed, that is to say that there is no space left free by a missing tooth between the two teeth of the second set of teeth. These tooth configurations with missing teeth are adapted to allow a determined sequencing in the drive of the first mobile, but also of the second mobile, as will be specified below. The first and second gears can be seen as constituting a single tooth set with no missing tooth, with one tooth on the first set at an angular location where one tooth is missing on the second set and one tooth on the second set at a location. angular where a tooth is missing on the first toothing. Furthermore, at least one tooth of the first set of teeth can also be juxtaposed with a tooth of the second set of teeth.

The first disk 12 has 10 digits of units 0 through 9. These digits are shown on the units display disk 12.

The first set of teeth 11b and the second set of teeth 11c are juxtaposed on two distinct levels arranged respectively in planes P1 and P2 as shown in FIG. figure 3 . The planes P1 and P2 are mutually parallel and distinct. They are preferably perpendicular to the axis A1. Thus, the plane P1 intersects the first toothing, but does not intersect the second toothing. Likewise, the plane P2 intersects the second toothing, but does not intersect the first toothing.

The first and second teeth are integral with one another in rotation about the axis A1. Thus, one of the teeth cannot rotate by a given angle around the axis A1 without the other of the teeth also rotating by this given angle. For example, the first and second teeth are fixed to one another or linked by a built-in connection. Alternatively, the first and second toothings are either integral or produced in a single block or element.

The second display mobile 20 comprises a second pinion 21 comprising in particular the third toothing 21b and the fourth toothing 21c. The third toothing is for example provided with four teeth. The third set of teeth consists for example of a set of ten teeth, equally distributed around the axis A2, of which six of the teeth have been removed or have not been formed. In other words, it is a set of ten teeth of which six teeth are missing. The four teeth of the third set of teeth are preferably distributed as follows: two juxtaposed teeth, one space left free by two missing teeth, one tooth, one space left free by two missing teeth, one tooth and one space left free by two missing teeth .

The fourth set of teeth 21c is for example provided with six teeth. The fourth set of teeth consists for example of a set of ten teeth, equally distributed around the axis A2, of which four of the teeth have been removed or have not been formed. In other words, it is a set of ten teeth of which four teeth are missing. The six teeth of the fourth set of teeth are preferably distributed as follows: two juxtaposed teeth, a space left free by a missing tooth, two juxtaposed teeth, a space left free by a missing tooth, two juxtaposed teeth, a space left free by two missing teeth. The third and fourth teeth can be seen as constituting a single tooth set with no missing tooth, one tooth lying on the third tooth set at an angular location where one tooth is missing on the fourth tooth set and one tooth lying on the fourth set at a location. angular where a tooth is missing on the third tooth. Furthermore, at least one tooth of the third set of teeth can also be juxtaposed with at least one tooth of the fourth set of teeth.

These tooth configurations with missing teeth are adapted to allow a determined sequencing in the drive of the second mobile, but also of the first mobile, as will be specified below. In particular, the second control mobile is also arranged so as to be driven by the first display mobile and / or by the second display mobile.

The second disk 22 has 10 tens digits from 0 to 3. These digits are represented on the tens display disk 22. The digits are represented in the following sequence: 0, 0, 1, 1, 1, 2, 2 , 2,3,3.

The third set of teeth 21b and the fourth set of teeth 21c are juxtaposed on two distinct levels arranged respectively in the planes P1 and P2 as shown on the figure 3 . The planes P1 and P2 are preferably perpendicular to the axis A2. Thus, the plane P1 intersects the third toothing, but does not intersect the fourth toothing. Likewise, the plane P2 intersects the fourth toothing, but does not intersect the third toothing.

The third and fourth teeth are integral with one another in rotation about the axis A2. Thus, one of the teeth cannot rotate by a given angle around the axis A2 without the other of the teeth also rotating by this given angle. For example, the third and fourth teeth are fixed to one another or linked by a built-in connection. Alternatively, the third and fourth toothings are either integral or produced in a single block or element.

The drive mechanism 90 comprises, in addition to the first control mobile and the second control mobile, a drive wheel 60 comprising a seventh toothing 61 arranged so as to drive, directly or indirectly, the first control mobile.

In particular, the drive mechanism 90 may comprise an intermediate mobile 50 cooperating by obstacle, in particular by meshing, with the seventh toothing 61 of the drive wheel 60 and with the fifth toothing of the first mobile 30 for control. Thus, the seventh toothing 61 is arranged so as to lead indirectly (via the intermediate mobile 50) the first control mobile.

The drive mechanism 90 may be of the instantaneous jump type or of the semi-instantaneous jump type or of the drag type.

The drive mechanism 90 is configured and / or arranged so as to cause the advance of one step of the first control wheel set every twenty-four hours, that is to say to cause the rotation of a tenth of a turn of the first display mobile every twenty-four hours.

As seen above, the first control wheel 30 allows, via its fifth toothing 30a, the driving of the first display mobile 10 and / or the second display mobile 20, more particularly the driving of the first toothing 11b and / or the third set of teeth 21b.

As seen above, the second mobile 40 control allows, via its sixth toothing 40a, the driving of the first display mobile 10 and / or the second display mobile 20, more particularly the driving of the second toothing 11c and / or the fourth set of teeth 21c. Furthermore, the second control mobile is driven by the first display mobile and / or by the second display mobile.

The first and second control wheels 30 and 40 are for example coaxial relative to a third axis A3. The axis A3 is preferably parallel to the axes A1 and A2.

The fifth set of teeth 30a and the sixth set of teeth 40a are juxtaposed on two distinct levels arranged respectively in the planes P1 and P2 as shown in FIG. figure 4 . The planes P1 and P2 are preferably perpendicular to the axis A3. Thus, the plane P1 intersects the fifth toothing, but does not intersect the sixth toothing. Likewise, the plane P2 intersects the sixth toothing, but does not intersect the fifth toothing.

The first and second control wheels 30 and 40 are mounted loose with respect to each other. In other words, the first and second control wheels can rotate freely with respect to each other.

The fifth and sixth teeth 30a and 40a each comprise, for example, 10 teeth. These teeth could have another number of teeth. However, the fifth and sixth teeth 30a and 40a advantageously have the same number of teeth.

The first and second teeth 11b and 21b arranged at the level of the first plane P1 are each provided to cooperate with the fifth teeth 30a of the first control wheel 30, which is also arranged at the level of the first plane P1. This first control wheel 30, more particularly the fifth set of teeth 30a, is driven by one step per 24 hours.

The two display wheels 10 and 20 are also driven by means of the sixth toothing 40a of the second control wheel 40, which is arranged at the level of the second plane P2, and which is designed to cooperate with the teeth 11c and 21c. . Depending on the sequencing of the date jumps, this second control wheel 40 can drive and / or be driven by the teeth 11c and 21c.

More particularly, the drive mechanism 90, by means of its toothing 50a, drives every day, by one step, the fifth toothing 30a of the first control wheel set 30, which in turn drives, depending on the date, the first display mobile 10 and / or the second display mobile 20, through the respective teeth 11b, 21b. Depending on the date, the teeth 40a of the second control wheel 40 can be driven by the first display wheel set 10, more particularly by the teeth 11c, and / or by the second display wheel set 20, more particularly by the teeth 21c . When it is driven, the second control mobile 40 can in turn drive the first display mobile 10 via the toothing 11c, and / or the second display mobile 20 via the toothing 21c.

In a second variant of the first embodiment illustrated on figure 6 , only the conformation of the second display mobile 20 is modified. In this variant, the second display mobile 20 comprises a third set of teeth 21b arranged along plane P1, provided with 7 teeth, as well as a fourth set of teeth 21c, arranged along plane P2, provided with 8 teeth.

The third set of teeth consists for example of a set of ten teeth, equally distributed around the axis A2, of which three of the teeth have been removed or have not been formed. In other words, it is a set of ten teeth of which three teeth are missing. The seven teeth of the third set of teeth are preferably distributed as follows: three juxtaposed teeth, a space left free by a missing tooth, two juxtaposed teeth, a space left free by a missing tooth, two juxtaposed teeth and a space left free by a missing tooth.

The fourth set of teeth is for example made up of a set of ten teeth, equally distributed around the axis A2, of which two of the teeth have been removed or have not been formed. In other words, it is a set of ten teeth of which two teeth are missing. The eight teeth of the fourth set of teeth are preferably distributed as follows: eight juxtaposed teeth and a space left free by two missing teeth.

This variant has in particular the advantage of having teeth 21b and 21c with few missing teeth, deleted or not formed, which makes it possible to avoid the biasing of the arms 81, 82 and more particularly the arm 82 cooperating with the second. mobile.

A second embodiment of a timepiece 120 is described below with reference to figure 9 .

The timepiece 120 is for example a watch, in particular a wristwatch.

The timepiece 120 comprises a timepiece movement 110. The timepiece movement is intended to be mounted in a timepiece case in order to protect it from the external environment.

The watch movement 110 can be an electronic movement or a mechanical movement, in particular an automatic movement.

The watch movement comprises a device 100 for displaying a time indication or time derivative. The hourly or time-derived indication is preferably an indication of dates. However, the indication may be of any other nature, in particular a numerical indication with two or more digits such as an indication of the years or an indication of the months or an indication of the hours or an indication of the minutes or an indication of the seconds.

In this second embodiment, the display device is for example a date display device of the “big date” type.

In this second embodiment, the display device further comprises a correction mobile 70 acting on the drive mobile 50, more particularly on the teeth 50a. As a variant, the correction could also be done by directly driving the fifth set of teeth 30a of the first control mobile 30. The device could also include (in substitution for the correction mobile 70) an arm used to perform a correction by acting on the mobile 50. or on the first mobile control 30.

Different design variants are possible for the drive of the two display discs 12 and 22. All of the variants presented here all operate according to the same date display sequencing, with the same number of teeth on the moving parts. display 10 and on the control wheels 30 and 40. The only differences between the different variants described are the arrangement and the number of teeth provided on the third and fourth teeth of the display mobile 20.

Preferably, whatever the embodiment or the variant, the first, third and fifth teeth have substantially the same first pitch diameter.

Preferably, whatever the embodiment or the variant, the second, fourth and sixth teeth have substantially the same second pitch diameter.

Preferably, whatever the embodiment or the variant, the first and second pitch diameters are equal or substantially equal.

Preferably, whatever the embodiment or the variant, the first and second control wheels 30 and 40 are arranged coaxially. However, it is also possible to arrange them along two distinct axes of rotation while keeping the same operation of the kinematic chain of the display device.

Preferably, whatever the embodiment or the variant, the first toothing 11b, the second toothing 11c, the third toothing 21b and the fourth toothing 21c, as well as the fifth toothing 30a and the sixth toothing 40a of the first and second wheels 30 and 40 all have profiles and modules that are substantially identical. These six teeth also have the same angular pitch with 10 teeth, missing or not, evenly distributed around their respective axes. These characteristics do not, however, constitute a limitation on the operation of the device. For example, it would be quite conceivable to have different numbers of teeth for the two display mobiles 10 and 20 in order to follow successions of different digits on the two display discs 12 and 22. The numbers of digits on the two display mobiles 10 and 20 are not necessarily identical. Likewise, the number of teeth of the pinions 11 and 21 need not be identical. The numbers of teeth of the two control wheels 30 and 40 also have no influence on the sequencing of the jumps of this device. The number of teeth of the fifth set of teeth 30a of the first control wheel set 30 could be different from that of the sixth set of teeth 40a of the second drive wheel set 40.

Whatever the embodiment or the variant, the number of locations available for arranging teeth on the teeth 11b, 11c, 21b and 21c of the two display wheels 10 and 20 could also be a multiple of the number of digits indicated. on display disks 12 and 22.

Whatever the embodiment or the variant, the meshing of the teeth 11b, 11c, 21b and 21c of the two display wheels 10 and 20 could also be done with different profiles and / or modules on the teeth 30a and 40a of the two control wheels 30 and 40. One could, for example, have the teeth 30a and 40a substantially twice smaller than those provided in the teeth 11b, 11c, 21b, 21c.

In other design variants, it is possible to have the two display disks 12 and 22 superimposed or partially superimposed. It is even possible to arrange the two display discs so coaxial. In the case of a coaxial superposition of the display disks, the construction of the kinematic chain should then be transposed onto four separate planes instead of two, because the teeth 11b, 11c, 21b and 21c of the two display mobiles 10 and 20 must be coaxial. The kinematic chain would however remain unchanged, because it would still be possible to have a fifth toothing 30a of a first control wheel 30 meshing with the first and third teeth 11b and 21b, as well as a sixth toothing 40a of a second wheel. control 40 meshing with the second and fourth teeth 11c and 21c.

Whatever the embodiment or the variant, a locking system, in particular a Maltese cross, could be added to one or more additional levels of the display mobiles 10 and 20 or of the control mobiles 30 and 40.

Whatever the embodiment or the variant, the driving of the first control wheel set 30 by the drive wheel set 50 can be done directly by the respective teeth 30a and 50a, or by an additional level of teeth not shown here.

Whatever the embodiment or the variant, it is possible to carry out the drive of the first and second mobile units directly with the first control mobile 30 (without resorting to mobile 50 and 60). To do this, the first control wheel 30 could comprise a limited number n of teeth, for example one tooth or two teeth or three teeth (evenly distributed), and configured so that a rotation of 1 / n turn takes place. every 24 hours. The drive could be of the instantaneous jump type or of the semi-instantaneous jump type or of the drag type. For example, the mobile 30 could include only 2 diametrically opposed teeth from each other and causing the first and the second display mobile 10 and 20 on the center line. The control rover should then perform a U-turn every 24 hours.

Regardless of the embodiment or variant, the display of the digit 0 on the tens display disk 22 may be replaced by a blank, that is to say an area of the disk without a digit. Thus, the sequence 0, 0, 1, 1, 1, 2, 2, 2, 3, 3 can be replaced by "empty", "empty", 1, 1, 1, 2, 2, 2, 3, 3 .

Whatever the embodiment or the variant, the timepiece, in particular the movement or the display device, may comprise a jumper or indexing device 80, in particular a first embodiment of a device. 80 jumper or indexing as described below with reference to figures 9 to 13 .

• au moins un premier bras 81 comprenant un premier bec 81a de positionnement d'un premier mobile 10,
• au moins un deuxième bras 82 comprenant un deuxième bec 82a de positionnement d'un deuxième mobile 20,
• un élément de rappel élastique 84 du premier bras et du deuxième bras dans des configurations de positionnement des premier et deuxième mobiles, et
• une bascule 83 interfacée entre :
  • ∘ d'une part, l'élément de rappel élastique, et
  • ∘ d'autre part, les premier et deuxième bras.

The jumper or indexing device 80 comprises:

• at least a first arm 81 comprising a first beak 81a for positioning a first mobile 10,
• at least one second arm 82 comprising a second beak 82a for positioning a second mobile 20,
• an elastic return element 84 of the first arm and of the second arm in positioning configurations of the first and second wheels, and
• a flip-flop 83 interfaced between:
  • ∘ on the one hand, the elastic return element, and
  • ∘ on the other hand, the first and second arms.

The jumper or indexing device 80 makes it possible to index each of the first and second moving parts in angular position, that is to say to define a determined angular position from among a determined number of stable angular positions, for example 10 positions, for each of first and second mobile. These positions are positions allowing the mobiles to indicate information.

As seen above, the first mobile 10 is mobile in rotation around the axis A1 and the second mobile 20 is mobile in rotation around the axis A2. The device 80 preferably comprises a frame 99 on which the first mobile 10 is mounted to be movable in rotation about the axis A1 and on which the second movable 20 is mounted to be movable in rotation about the axis A2. The frame can be in particular a blank such as a plate or a calendar circle 99.

The first arm or lever 81 is mounted to pivot relative to the frame 99 about a pivot axis A5 of the first arm.

The second arm or lever 82 is mounted to pivot relative to the frame 99 about a pivot axis A5 of the second arm.

The first arm or lever 81, in particular the first spout 81a, is intended to cooperate with the first 11b and second 11c teeth of the first pinion 11 of the first display mobile 10. The second arm or lever 82, in particular the second spout 82a, is intended to cooperate with the third 21b and fourth 21c teeth of the second pinion 21 of the second display mobile 20. It is these two arms or levers 81, 82, in particular their beaks, which allow, by interaction with the teeth of the teeth, the angular indexing of the two display wheels 10 and 20, as shown in figure 2 .

More precisely, the indexing of the first display mobile 10 is ensured by the beak or the head 81a which is part of the arm 81. The head 81a comprises two flanks 81b and 81c. It is the arrangement of these two flanks cooperating by contact with the flanks of successive teeth of the first and second teeth 11b and 11c which allows the angular indexing of the first display mobile 10, as illustrated in figure 10 .

Similarly, the indexing of the second display mobile 20 is ensured by the spout or the head 82a which is part of the arm 82. The head 82a comprises two flanks 82b and 82c. It is the arrangement of these two flanks cooperating by contact with the flanks of successive teeth of the third and fourth teeth 21b and 21c which allows the angular indexing of the second display mobile 20, as illustrated in FIG. figure 10 .

The elastic return element 84 makes it possible to elastically return the arms or levers 81 and 82 by means of an interface means 83, such as a rocker, which makes it possible to transmit and distribute the force of the return element elastic 84 between the two arms or levers 81 and 82. The interface means is therefore interfaced or disposed between the arms or levers 81 and 82 and the elastic return element 84. The elastic return element 84 is mechanically linked to the frame 99. For example, the elastic return element 84 is mechanically fixed to the frame 99 at one of its ends. Advantageously, the return element is in the form of a leaf spring.

Preferably, the interface means 83 comprises a pin 86 which is guided in a groove 85 formed on the frame. Associated with the pin 86, this groove 85 allows the interface means 83 to have a first degree of freedom in rotation, in particular around an axis parallel or substantially parallel to the axis A5, and a second degree of freedom in translation relative to the frame perpendicular to the line of centers defined by axes A1 and A2 or substantially perpendicular to the line of centers defined by axes A1 and A2.

In an alternative embodiment not shown, the pin can be made or fixed to the frame and the groove can be made in the interface means. In other words, in an alternative embodiment, the construction can be reversed.

The interface means 83 comprises in particular a first contact zone 83a or 83a 'cooperating with the elastic return element 84, in particular with a second end of the leaf spring 84, a second contact zone 83b or 83b' cooperating with the first arm or lever 81 and a third contact zone 83c or 83c 'cooperating with the second arm or lever 82, as shown in FIG. figure 10 .

The spring 84 transmits its return force to the interface means 83 via the first contact zone 83a or 83a '. This restoring force is then transmitted and distributed between the first and the second arm 81 and 82 by means of the second and third contact zones 83b or 83b 'and 83c or 83c' respectively.

A second embodiment of a jumper or indexing device 80 is described below with reference to figures 14 to 16 .

The second embodiment of the jumper or indexing device 80 differs from the first embodiment of the jumper or indexing device 80 mainly or only by the geometry of the interface means 83 '.

In the second embodiment of the jumper or indexing device 80, the interface means 83 ′ advantageously have a generally rectangular or trapezoidal section in the representation planes of the figures 14 to 16 perpendicular to axes A1, A2 or A5.

The interface means 83 ′ comprises in particular a first contact zone 83a ′ cooperating with the elastic return element 84, in particular with the second end of the leaf spring 84, a second contact zone 83b ′ cooperating with the first arm or lever 81 and a third contact zone 83c 'cooperating with the second arm or lever 82, as shown in the figures 14 to 16 .

The first contact area 83a 'may extend along a small base of the trapezoidal section. Advantageously, this contact zone constitutes a cam surface 89 arranged to arm the elastic return element 84 when the interface means pivot in rotation about an axis perpendicular to the plane of the figures 14 to 16 , in particular around the axis of the pin 86. In fact, with respect to a rest or neutral position such as that shown in FIG. figure 10 where the surface 89 would be substantially parallel to the end of the leaf spring 84, in the positions shown in the figures 14 and 16 , the interface means 83 'has translated downwards, in the direction of the leaf spring 84, perpendicular to the axis A5 and has pivoted about the axis of the pin 86. These displacements cause a first displacement or winding of the elastic return element 84 due to the translation of the interface means 83 'and a second displacement or winding of the elastic return element 84 due to the rotation of the interface means 83' via of the cam surface 89. The cam surface 89 is arranged or shaped so that the winding of the resilient return member 84 is, in the configurations of figures 14 to 16 , the same or more or less the same as in the configuration of the figure 15 , where the interface means has translated downwards, in the direction of the leaf spring 84, perpendicular to the axis A5 without pivoting or almost without pivoting about the axis of the pin 86.

The distribution of the force produced by the elastic return element 84 between the two arms 81, 82 depends on the relative positions of the three contact zones 83a, 83b and 83c or 83a ', 83b' and 83c ', geometries adopted on the arms 81, 82 and on the elastic return element 84 cooperating with these three contact zones 83a, 83b and 83c or 83a ', 83b' and 83c ', the geometry and the position of the guide of the means 83 or 83 'and the relative position between the arms 81 and 82.

In an alternative embodiment, the first arm and the second arm can be formed in the same one-piece or monolithic assembly. In such a variant, the one-piece or monolithic assembly can be shaped so as to allow a degree of freedom in rotation of the first and second arms about an axis parallel or substantially parallel or coincident with the axis A5, for example by by means of elastic pivots of the RCC type. The interface means 83 or 83 'can also form part of the one-piece or monolithic assembly and have a degree of freedom in rotation about an axis parallel to the axis of rotation of the first and second arms, and a second degree of freedom in translation relative to the frame perpendicular to the line of the centers defined by the axes A1 and A2 or substantially perpendicular to the line of the centers defined by the axes A1 and A2, by means of elastic connections formed for this purpose. The one-piece or monolithic assembly may include a frame intended to be fixed to the frame and positioned so that the interface means can be in contact with the end of the spring. Thus, the proposed mobile indexing device could be constructed in one or more parts in flexible guides which can group together several parts and / or functions described in this document.

Whatever the variant, the largest dimension of the interface means 83 or 83 'is preferably at least 2 times or at least 3 times less than the largest dimension of the first arm and / or the largest dimension of the second arm.

In an alternative embodiment, the geometries of the elastic return element 84, of the interface means 83 or 83 ', of the arms 81, 82, and consequently of the contact zones 83a, 83b and 83c or 83a', 83b 'and 83c' could be modified so as to modify the distribution of the force transmitted to the two arms or levers 81, 82 by the elastic return element 84 and by the intermediary of the interface means 83 or 83 '. In the same logic, these geometric modifications would make it possible to modify the force and / or the variations in force produced by the elastic return element 84 as a function of the number of arms or levers actuated. It is therefore possible to modulate the return force at the levers according to the needs of the construction.

In an alternative embodiment, the different degrees of freedom conferred on the interface means could be obtained without a pin or a groove. To do this, the interface means 83 or 83 'would have to be, for example, guided directly by the arms or levers 81, 82 and / or by the elastic return element 84, of course adapting the geometries of these. components. With this type of construction, it would even be possible to add an additional degree of freedom; for example a second translation in a plane perpendicular to the axis A5.

In an alternative embodiment, the pivoting of the arms or levers 81 and 82 could not be coaxial.

In the variant embodiment illustrated in particular by the figure 10 , the two arms or levers 81 and 82 operate in opposition to each other with respect to the axis A5. However, in an alternative embodiment, these two arms or levers 81 and 82 could be superimposed, in particular in the case where the two display mobiles are superimposed or coaxial. In such a case, the interface means 83 or 83 'is advantageously mounted in a pivot connection about an axis parallel to the plane of the figures 11 to 13 .

In an alternative embodiment, the mobile indexing device could also be implemented with arms or levers 81 and 82 operating in translation. In such a case, the interface means 83 or 83 'is advantageously arranged to bear against the ends of the arms or levers 81 and 82 operating in translation.

In different variant embodiments, the elastic return element 84 could in particular comprise one or more blades, or be a helical spring, a flexible guide or any other device capable of applying a torque or a return force. The elastic return element could in particular comprise two blades separated by a portion forming a cam provided to cooperate with the interface means.

In an alternative embodiment, an intermediate piece between the interface means 83 or 83 ′ and the elastic return element 84 could be added.

By extension, the indexing device 80 could also operate with more than two arms or levers.

Different cases of actuation of the arms or levers 81, 82 as a function of the different possible sequencing during a date jump are explained below.

Thanks to the arrangement and the conformation of the interface means 83 or 83 ', the deformation of the elastic return element 84 when the two arms or levers 81, 82 are actuated can here be advantageously equivalent or substantially equivalent to the deformation of the elastic return element 84 when only one of the two arms or levers 81, 82 is actuated. This results in equivalent or substantially equivalent energy consumption regardless of the number of arms or levers actuated.

An embodiment of a first method of operating a device 100 described above or a watch movement 110 described above or a timepiece 120 described above is disclosed below with reference to figures 7 and 8 .

• une étape d'entraînement du premier mobile d'affichage 10 par le premier mobile de commande 30, et/ou
• simultanément, une étape d'entraînement du premier mobile d'affichage 10 par le premier mobile de commande 30 et une étape d'entraînement du deuxième mobile d'affichage 20 par le premier mobile d'affichage 10 via le deuxième mobile de commande 40, et/ou
• une étape d'entraînement du deuxième mobile d'affichage 20 par le premier mobile de commande 30, et/ou
• simultanément, une étape d'entraînement du deuxième mobile d'affichage 20 par le premier mobile de commande 30 et une étape d'entraînement du premier mobile d'affichage 10 par le deuxième mobile d'affichage 20 via le deuxième mobile de commande 40.

The process includes:

• a step of driving the first display mobile 10 by the first control mobile 30, and / or
• simultaneously, a step of driving the first display mobile 10 by the first control mobile 30 and a step for driving the second display mobile 20 by the first display mobile 10 via the second control mobile 40, and or
• a step of driving the second display mobile 20 by the first control mobile 30, and / or
• simultaneously, a step of driving the second display mobile 20 by the first control mobile 30 and a step for driving the first display mobile 10 by the second display mobile 20 via the second control mobile 40.

An embodiment of a second method of operating a device 80 described above or a device 100 described previously or a horological movement 110 described previously or a timepiece 120 described previously is also disclosed. below with reference to figures 11 to 16 .

• une étape de déplacement du premier bras et/ou du deuxième bras sous l'effet du mouvement du premier mobile 10 et/ou du deuxième mobile 20 et une étape d'armage de l'élément de rappel élastique 84 sous l'effet d'un déplacement de la bascule 83, 83', et
• une étape de restitution de l'élément de rappel élastique 84 (c'est-à-dire une étape de restitution d'énergie potentielle élastique) provoquant un entraînement en rotation du premier mobile 10 et/ou du deuxième mobile 20 par l'intermédiaire de la bascule 83, 83' et du premier bras et/ou du deuxième bras, notamment jusqu'à ce que le premier et/ou le deuxième mobile atteigne sa position indexée ou stable suivante.

The process includes:

• a step of moving the first arm and / or the second arm under the effect of the movement of the first mobile 10 and / or the second mobile 20 and a step of winding the elastic return element 84 under the effect of a movement of the rocker 83, 83 ', and
• a step of restoring the elastic return element 84 (that is to say a step of restoring elastic potential energy) causing a drive in rotation of the first mobile 10 and / or the second mobile 20 via of the rocker 83, 83 'and of the first arm and / or of the second arm, in particular until the first and / or the second mobile reaches its next indexed or stable position.

• l'armage est provoqué par un déplacement du premier mobile,
• l'armage est provoqué par un déplacement du deuxième mobile,
• l'armage est provoqué par un déplacement du premier et du deuxième mobile.

Preferably, with the embodiment described with reference to figures 14 to 16 , the winding step has the same intensity in at least two of the following situations:

• the winding is caused by a displacement of the first mobile,
• the winding is caused by a displacement of the second mobile,
• the arming is caused by a displacement of the first and of the second mobile.

The kinematic chain of the drive of the display mobiles 10 and 20 by the control mobiles 30 and 40 varies according to the date to be jumped. The different possible cases are explained below in particular by means of the first variant of the first embodiment. The diagrams in the figure 7 illustrate these different scenarios.

Passage of information "29" to "30":

The display device shows "29". The toothing 50a of the drive mobile 50 takes a step in the counterclockwise direction and drives the fifth toothing 30a of the first control mobile 30 in the direction hourly. The fifth set of teeth 30a thus drives the first set of teeth 11b of the first display mobile 10 in the counterclockwise direction. The display of units on the first display disk 12 then changes from unit "9" to "0". The fifth toothing 30a does not drive the third toothing 21b of the second display mobile 20. However, in its rotation, the toothing 11c of the first display mobile 10 drives the sixth toothing 40a of the second control mobile 40 resulting in its rotation. turn the toothing 21c of the second display mobile 20. The display of the tens of the second display disc 22 then changes from ten “2” to ten “3”.

This training principle is identical for information passages from "09" to "10", as well as from "19" to "20".

Passage of information "30" to "31":

The display device shows "30". The toothing 50a of the drive mobile 50 takes a step in the counterclockwise direction and drives the fifth toothing 30a of the first control mobile 30 in the clockwise direction. The fifth set of teeth 30a thus drives the set of teeth 11b of the first display mobile 10 in the counterclockwise direction. The display of the units on the first display disk 12 then changes from the unit "0" to "1". The fifth toothing 30a does not drive the third toothing 21b of the second display mobile 20. However, in its rotation, the toothing 11c of the first display mobile 10 drives the sixth toothing 40a of the second control mobile 40 resulting in its rotation. turn the teeth 21c of the second display mobile 20. The display of the tens of the second display disc 22 then changes to the next digit, that is to say from ten “3” to ten “3”, the display "3" being duplicated on disk 22.

This drive principle is identical for the information passages from "10" to "11", as well as from "20" to "21", the displays of "1" and "2" also being duplicated.

Passage of information "31" to "01":

The display device shows "31". The fifth set of teeth 50a of the drive wheel set 50 takes a step in the counterclockwise direction and drives the fifth set of teeth 30a of the first control wheel set 30 in the clockwise direction. The fifth set of teeth 30a can no longer drive the set of teeth 11b of the first display mobile 10, because it is facing a missing, deleted or unformed tooth. The fifth set of teeth 30a drives the set of teeth 21b of the second display mobile 20 in the counterclockwise direction. The tens display of the second display disk 22 then changes to the next ten, from "3" to "0". In its rotation, the toothing 21c of the second display mobile 20 cannot drive the second control mobile 40 by the sixth toothing 40a, because the toothing 21c is here missing, deleted or not formed. The first display disk 12 of the units of the first display mobile 10 then remains in place.

When changing the date from "31" to "01" as shown on the figures 11 and 14 , only the second display mobile 20 is driven.

In a first phase of actuation of the second arm 82, under the effect of the rotation of the second display mobile 20, the second arm 82 is actuated in a first direction of rotation by mounting on a tooth of the teeth 21b or 21c . In its rotation, the second arm 82 arms the elastic return element 84 by means of the interface means 83 or 83 '. More precisely, the second contact zone 83b or 83b 'being supported on the first arm 81 which remains in place, the interface means 83 or 83' rotates and translates in the groove 85 in a first direction of displacement due to the mobility of the support of the second arm 82 on the third contact zone 83c or 83c '.

In a second phase of actuation of the second arm 82, which takes place after crossing the top of the tooth of the toothing 21b or 21c, the second arm 82 is actuated in a second direction of rotation by lowering the tooth of the toothing 21b. or 21c under the effect of the restitution of the elastic return element 84, via the interface means 83 or 83 '. The interface means 83 or 83 'rotates and translates here according to a second direction of movement, which is opposite to the first direction of movement.

Passage of information "01" to "02":

The display device shows "01". The fifth set of teeth 50a of the drive wheel set 50 takes a step in the counterclockwise direction and drives the fifth set of teeth 30a of the first control wheel set 30 in the clockwise direction. The fifth set of teeth 30a can no longer drive the set of teeth 11b of the first display mobile 10, because it is facing a missing, deleted or unformed tooth. On the other hand, this fifth toothing 30a drives the toothing 21b of the second display mobile 20 in the counterclockwise direction. The display of the tens of the second display disc 22 then changes to the next digit "0", the display of the ten "0" being duplicated on the disc 22. In its rotation, the teeth 21c of the second display mobile 20 drives the sixth toothing 40a of the second control wheel 40, in turn driving the teeth 11c of the first display wheel 10. The display of the units of the first display disc 12 then changes from unit "1" to 1. unit "2".

The two display mobiles 10 and 20 are here driven simultaneously, as illustrated in the figures 12 and 15 .

In a first phase of actuation of the two arms, under the effect of the rotation of the first and of the second display mobiles 10 and 20, the first and second arms 81 and 82 are actuated in a first direction of rotation by rising respectively on teeth of the teeth 11b or 11c and 21b or 21c. In their rotation, the first and second arms 81 and 82 arm the elastic return element 84 by means of the interface means 83 or 83 '. More precisely, the interface means 83 or 83 'translates in the groove 85 in a first direction of movement under the combined effect of the support of the first arm 81 on the second contact zone 83b or 83b' and of the 'support of the second arm 82 on the third contact zone 83c or 83c', and this so as to arm the elastic return element 84 by means of the first support zone 83a or 83a '. The displacement of the interface means 83 or 83 ′ corresponds here to a displacement in translation or substantially in translation. It is possible that the interface means 83 or 83 'can pivot. However, this potential rotational displacement is low, or even very low, compared to its translational displacement.

In a second phase of actuation of the two arms, which takes place after crossing the tops of the teeth of the teeth 11b or 11c and 21b or 21c, the first and second arms 81 and 82 are actuated in a second direction of rotation by descending from the teeth under the effect of the restitution of the elastic return element 84, via the interface means 83 or 83 '. The latter is translated here according to a second direction of movement, which is opposite to the first direction of movement.

These training principles are identical for the passages of information "11" to "12", as well as "21" to "22", the displays of "1" and "2" also being duplicated.

Passage of information "02" to "03":

The display device shows "02". The fifth set of teeth 50a of the drive wheel set 50 takes a step in the counterclockwise direction and drives the fifth set of teeth 30a of the first control wheel set 30 in the clockwise direction. The fifth set of teeth 30a drives the set of teeth 11b of the first display mobile 10 in the counterclockwise direction. The display of units on the first display disk 12 then changes to the next unit. On the other hand, the tens are not trained. Indeed, the fifth toothing 30a can no longer drive the toothing 21b of the second display mobile 20, because it is facing a missing, deleted or unformed tooth. The toothing 11c of the first display mobile 10 cannot either drive the sixth toothing 40a of the second control mobile 40, because a tooth of the toothing 11c is also here missing, deleted or not formed. As a result, the second control mobile 40 and the second display mobile 20, more particularly the second display disc 22, remain in place.

In this case, only the first display mobile 10 is driven, as shown in the figures. figures 13 and 16 .

In a first phase of actuation of the first arm 81, under the effect of the rotation of the first display mobile 10, the first arm 81 is actuated in a first direction of rotation by mounting on a tooth of the teeth 11b or 11c . In its rotation, the first arm 81 arms the elastic return element 84 by means of the interface means 83 or 83 '. More precisely, the third contact zone 83c or 83c 'being supported on the second arm 82 which remains in place, the interface means 83 rotates and translates in the groove 85 in a first direction of movement due to the mobility of the support of the first arm 81 on the second contact zone 83b or 83b '.

In a second phase of actuation of the first arm 81, which takes place after crossing the top of the tooth of the teeth 11b or 11c, the first arm 81 is actuated in a second direction of rotation by descending from the tooth of the teeth 11b or 11c under the effect of the restitution of the elastic return element 84, via the interface means 83 or 83 '. The interface means 83 or 83 'rotates and translates here according to a second direction of movement, which is opposite to the first direction of movement.

These same principles are applicable for the other jumps from "03" to "09", and for the jumps from "12" to "13" and up to "19", as well as for the jumps "22" to "23" and up to "29".

Preferably, as visible on the figures 5 , 6 and explained below with reference to figure 8 , the teeth of the fifth set of teeth are clipped. Indeed, it is in particular necessary to truncate the end of the toothing 30a so that the latter can cooperate with the toothings 11b and 21b only on the line of centers passing through the axes A1 and A2 and so that the latter does not risk to infer with the teeth 11b and 21b outside the line of centers.

Thanks to the solutions described above, the drive is produced by two separate control wheels having substantially the same size as that of the two pinions 11 and 21 of the two display wheels. The overall dimensions in the plane are then advantageously reduced, while offering a certain flexibility for the arrangement of the display mobiles and for the sequencing of the display.

These solutions also allow greater freedom as to the arrangement of the date display on the dial, but also in the sizing of the display discs, and therefore in the quality of reading the date.

These solutions do not include a large control wheel, but two separate control wheels, each in the form of a small pinion in the format equivalent or substantially equivalent to that of the pinion integral with the tens disk and / or that of the pinion. integral with the units disc.

The indexing device proposed here advantageously makes it possible to use one and the same return element provided for recalling two arms or levers capable of operating independently of one another or simultaneously. Such a device is thus capable of cleverly solving the problem of variations in the energy consumption of the movement linked to the simultaneous or non-simultaneous drive of the two “big date” display mobiles.

Thanks to the solutions according to the invention, the energy consumption of the movement during the training of the “big date” is identical or substantially identical whether there is one or both display mobiles to be driven. To achieve this, the interface means arranged between the elastic return element and the two arms indexing the two display wheels can be shaped so as to subject the end of the elastic return element, substantially the same displacement in a direction perpendicular or substantially perpendicular to the line of centers passing through the axes A1 and A2 in both situations. The figures 11 and 13 illustrate a means which moves by a first amplitude in a direction perpendicular or substantially perpendicular to the line of centers passing through the axes A1 and A2, under the effect of the displacement of the first or of the second arm. The figure 12 illustrates a means which moves by a second amplitude in a perpendicular direction or substantially perpendicular to the line of centers passing through the axes A1 and A2, under the effect of the simultaneous displacement of the first and second arms. In the indexing device shown in the figures 11 , 12 , and 13 , the first and second amplitudes are particularly low, so that the difference between these two amplitudes has no significant effect on the energy consumption of the movement. Thus, the energy required to drive the “big date” mechanism remains identical or substantially identical whether there is one or both display mobiles to be driven and is preferably negligible compared to the energy consumed by the part. clockwork for 24 hours.

Of course, it is quite possible to shape the first and / or the second arm and / or the interface means so that the second displacement amplitude of the means in a direction perpendicular or substantially perpendicular to the line of passing centers by the axes A1 and A2 is equal to the first amplitude of displacement of the interface means in a direction perpendicular or substantially perpendicular to the line of centers passing through the axes A1 and A2. Such a configuration is particularly favorable if the rigidity and / or the pre-winding of the spring are required to be increased, in particular with the aim of making the operation of the indexing device safer. In this case, the energy required to drive the “big date” mechanism remains identical or substantially identical whether there is one or both display mobiles to be driven.

Of course, it is quite possible to shape the first and / or the second arm and / or the interface means so that the displacement amplitudes of the interface means in a direction perpendicular or substantially perpendicular to the line of centers passing through the axes A1 and A2 vary as a function of the arm (s) actuated, and in particular as a function of the number of arms actuated. Thus, the force transmitted to the arm (s) could in particular vary according to the number of actuated arms or according to the actuated arm.

The mobile watchmaker indexing device solutions could be used in any other device implementing several indexing arms such as, for example, a day-date calendar, an annual or semi-perpetual or perpetual calendar, or even a chain. chronograph counting machine.

They could also be used in devices where the arms would serve, for example, as a mobile brake, clutch clamp or split-seconds. These devices can also be assimilated to indexing systems.

None of the identified documents of the prior art discloses an indexing device implementing two levers or lever jaws capable of being actuated independently of one another or simultaneously, and cooperating with one and the same control element. recall of which the level of winding is substantially the same regardless of the number of slats actuated. More particularly, none of the documents identified discloses such an indexing device for a “big date” mechanism.

Throughout this document, by "jumper" is preferably meant a position indexing device comprising a nose cooperating with a set of teeth, in particular with a hollow between two successive teeth of a set of teeth to define at least one indexed position d. 'a mobile, the spout being returned to the hollow by an elastic element.

Throughout this document, the term “toothing” preferably means a set of one or more teeth.

Throughout this document, the term “mobile” preferably means an element capable of rotating around an axis and of performing at least one complete rotation around the axis. The element can comprise several parts integral with one another in rotation around the axis. Advantageously, the mobile includes at least one set of teeth capable of allowing the mobile to be driven in rotation about the axis, in particular by meshing with another toothing external to the mobile.

Claims (14)

Jumper device (80) for a watchmaking device (100) comprising: - at least a first arm (81) comprising a first spout (81a) for positioning a first mobile (10), - at least a second arm (82) comprising a second spout (82a) for positioning a second mobile (20), - an elastic return element (84) of the first arm and of the second arm in positioning configurations of the first and second mobile, and - a rocker (83; 83 ') interfaced between: ∘ on the one hand, the elastic return element, and ∘ on the other hand, the first and second arms. Device according to the preceding claim, characterized in that the device is a device for indexing the angular position of a first mobile (10) mobile in rotation and a second mobile (20) mobile in rotation. Device according to Claim 1 or 2, characterized in that the device comprises a frame (99), in that the first arm is mounted to pivot relative to the frame (99) and in that the second arm is mounted to pivot relative to the frame ( 99), the first and second arms being in particular mounted to pivot about the same axis (A5). Device according to one of the preceding claims, characterized in that the device comprises a frame (99) and in that the rocker (83; 83 ') is mounted movably relative to the frame with: - a degree of freedom in translation, and - a degree of freedom in rotation. Device according to one of the preceding claims, characterized in that the largest dimension of the rocker is at least 2 times, or even 3 times, less than the largest dimension of the first arm or the largest dimension of the second arm. Device according to one of the preceding claims, characterized in that the device comprises a frame (99) and in that the device comprises: - a groove (85) made on the rocker, respectively on the frame, and - a pin (86) made or fixed on the frame, respectively on the rocker,
the groove and the pin cooperating with one another to form a mechanical connection having the degrees of freedom in translation and in rotation. Device according to one of the preceding claims, characterized in that the elastic return element (84) comprises a leaf spring. Device according to one of the preceding claims, characterized in that the rocker (83 ') or the elastic return element comprises a cam surface (89) arranged to arm the elastic return element (84) when the rocker is pivoted. in rotation. Date display device (100), in particular a “big date” display device, comprising a jumper device according to one of the preceding claims. Date display device (100) according to the preceding claim, comprising a first unit display mobile (10) and a second tens display mobile (20). Watch movement (110) comprising a device according to one of the preceding claims. Timepiece (120), in particular watch, in particular wristwatch, comprising a device according to one of claims 1 to 10 and / or a timepiece movement (110) according to the preceding claim. Method of operating a device (80, 100) according to one of claims 1 to 10 or of a timepiece movement (110) according to claim 11 or of a timepiece (120) according to claim 12, characterized in that it comprises: - a step of moving the first arm and / or the second arm under the effect of the movement of the first mobile (10) and / or the second mobile (20) and a step of winding the elastic return element (84 ) under the effect of a movement of the rocker (83; 83 '), - a step of restoring the elastic return element (84) causing a drive in rotation of the first mobile (10) and / or the second mobile (20) via the lever (83; 83 ') and the first arm and / or second arm. Method according to the preceding claim, characterized in that the winding step has the same intensity in at least two of the following situations: - the winding is caused by a displacement of the first mobile, - the winding is caused by a displacement of the second mobile, - The arming is caused by a displacement of the first and the second mobile.

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