EP2428856B1 - Timepiece - Google Patents

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Publication number
EP2428856B1
EP2428856B1 EP20100405209 EP10405209A EP2428856B1 EP 2428856 B1 EP2428856 B1 EP 2428856B1 EP 20100405209 EP20100405209 EP 20100405209 EP 10405209 A EP10405209 A EP 10405209A EP 2428856 B1 EP2428856 B1 EP 2428856B1
Authority
EP
European Patent Office
Prior art keywords
mobile
month
months
days
timepiece
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP20100405209
Other languages
German (de)
French (fr)
Other versions
EP2428856A1 (en
Inventor
Dominique Dubugnon
Adrien Farron
Christian Fleury
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rolex SA
Original Assignee
Rolex SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Rolex SA filed Critical Rolex SA
Priority to EP13163812.4A priority Critical patent/EP2624075B1/en
Priority to EP20100405209 priority patent/EP2428856B1/en
Priority to JP2011239888A priority patent/JP5918502B2/en
Priority to US13/287,469 priority patent/US8830797B2/en
Priority to CN201110384826.9A priority patent/CN102455653B/en
Publication of EP2428856A1 publication Critical patent/EP2428856A1/en
Application granted granted Critical
Publication of EP2428856B1 publication Critical patent/EP2428856B1/en
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    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B19/00—Indicating the time by visual means
    • G04B19/04—Hands; Discs with a single mark or the like
    • G04B19/046—Indicating by means of a disc with a mark or window
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B19/00—Indicating the time by visual means
    • G04B19/24—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B19/00—Indicating the time by visual means
    • G04B19/24—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars
    • G04B19/243—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars characterised by the shape of the date indicator
    • G04B19/247—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars characterised by the shape of the date indicator disc-shaped
    • G04B19/253—Driving or releasing mechanisms
    • G04B19/25333—Driving or releasing mechanisms wherein the date indicators are driven or released mechanically by a clockwork movement
    • G04B19/25353—Driving or releasing mechanisms wherein the date indicators are driven or released mechanically by a clockwork movement driven or released stepwise by the clockwork movement

Definitions

  • the present invention relates to a timepiece comprising an indicator dial, a date mechanism comprising a date mobile and a step-by-step driving member of this mobile, a mobile of the months, disposed below said indicator dial. and connected to the mobile date of the month by means of stepping drive shaped so that the moving months turn at an angle of 30 ° each month.
  • a date and month indicator device of this type is disclosed in the document EP 1158374 .
  • the integration of a complementary mechanism for displaying the indication of the months usually requires the establishment of one or more additional indexing jumpers.
  • the energy accumulator of the date mechanism must deliver an additional amount of energy to be able to overcome the sum of the couples produced by the multiple jumpers.
  • the resulting loss of energy at the sprung balance may cause a decrease in its amplitude and affect the accuracy of the watch.
  • the solution to reduce the jumper springs is not indicated because it may cause jumping jumps or accidental double jumps.
  • the CH 695 227 describes a mechanism of perpetual instantaneous jump calendars whose mobile date has two large disks of superimposed dates.
  • the first disc the dates of the first fifteen days of the month and the second disc those from 16 to 31.
  • a window is provided in the first disc between 15 and 1 of the month so that the dates of the second disc can be seen from 16
  • the operation of this calendar is dependent on the cooperation and synchronization of these two disks which are each rotated by their internal teeth meshing with a separate drive wheel.
  • the disk drive is programmed via an auxiliary cam, a control lever and wire spring switches, mounted on the first disk and cooperating with the geometry of the second disk.
  • the indication of the months is ensured by a small needle, arranged in the center of the movement, which points towards one of the twelve indexes of the hours also acting as index of the months.
  • the wheel which carries the month hand is devoid of indexing spring, and is directly engaged with the date indicator wheel by means of a gear train and a Maltese cross for locking and closing. 'training.
  • the object of the present invention is to remedy at least in part the aforementioned drawbacks.
  • the invention relates to a timepiece according to claim 1.
  • This month display device can be associated with both a conventional calendar and an annual calendar, as described in the EP 1 596 261 , or a perpetual calendar.
  • the distinctive area of the moving month that appears in one of the twelve windows in the dial has an angular extent greater than that of this window, so that any game of this mobile becomes undetectable.
  • the angular displacement of the mobile months can be performed over several days.
  • a distinctive zone extending over an angular sector of 20 ° to 30 ° the transition from one month to another appears to be instantaneous, although in reality the monthly advance of month is done in several days.
  • the energy required for its displacement can be spread over a longer period. This can be advantageous in the case of an annual or perpetual calendar, because the mechanism must be able to chain two, three, or even four consecutive date jumps.
  • the date wheel and the month wheel rotate in opposite directions. Consequently, the untimely angular displacements of these two mobiles are canceled out and no phase difference between the indications given by these mobiles can be caused, in particular in case of shocks.
  • the figure 1 represents a date mechanism 1 of a timepiece, driven in rotation by an hour wheel 14.
  • This mechanism comprises a date mobile 10 preferably in the form of a ring provided with a first annular toothing 11 with thirty-one teeth. This toothing is in engagement with a step-by-step stepping member 13 of known type, and is indexed angularly by a single jumper 17.
  • the date wheel 10 comprises a second toothing formed by a toothed sector 12, intended to mesh with an intermediate mobile 20 in engagement with a mobile of the month 30 which has the shape of a ring gear 31 internally engaged with the intermediate mobile 20.
  • This mobile of the months carries a distinctive zone 32 on its face underlying an indicator dial 40 ( figure 2 ).
  • This dial has twelve 41 angularly equidistant windows.
  • the distinctive zone 32 is preferably a colored zone of a color having a good contrast with that of the dial and with that of the crown of the months 30, but it can also be a transparent zone which reveals a color of the frame of the watch which presents a good contrast with that of the watch and with that of the crown of the months 30.
  • the maximum extent of the distinctive zone 32 is limited to a sector of angle equal to 30 ° while its minimum angular extent is not less than that of a window 41.
  • the toothed sector 12 meshes with the intermediate mobile 20, it drives the latter from a given angle. Since the mobile of the calendars rotates with an angular step equivalent to a thirty-first of a turn in steps, the angle of the sector geared 12 conditions the number of jumps made monthly by the mobile of the months 30.
  • the report of toothed sector gear 12 and intermediate gear 20 is chosen so that the moving month turns at an angle of 30 ° on at least one step of the mobile date. The number of steps is limited by the angular extent of the window, the larger it is, the smaller the number of permissible steps.
  • FIGS 3a-3a 'to 3e-3e' illustrate the sequences of the mobile of the month 30 for a change of month that takes place in four days, that is to say in four steps of the mobile date of 10.
  • the figure 3a represents a portion of the mobile of the months 30 seen by transparency through the indicator dial 40.
  • the latter displays the date 30 of a month of 31 days through the window 43, for example, January 30.
  • the figure 3a ' shows the meshing of the intermediate mobile 20 with the date mobile 10 on the one hand and with the moving month 30 on the other hand.
  • the toothed sector 12 of the date mobile is an external toothing and the intermediate mobile 20 is constituted by a pinion which meshes directly with the toothed sector 12 on the one hand, and with the internal toothing 31 of the mobile months of on the other hand, the mobile of the dates and the motive of the months turn in opposite directions.
  • the moving month 30 rotates in the direction of clockwise while the date of rotation 10 rotates in the opposite direction.
  • the intermediate mobile 20 is not yet engaged with the calendar mobile 10.
  • the distinctive zone 32 fills the window 41 which corresponds to the indication of the month of January.
  • the Figures 3b, 3b ' show the mechanism on January 31, after a first date jump.
  • the angular displacement of a pitch of the dates mobile 10 has brought the sector into dented 12 with the intermediate mobile 20. This resulted in a slight rotation of the mobile 30 months during which the rear end of the distinctive zone 32 has moved closer to the edge of the window 41 of January.
  • the Figures 3c, 3c ' show the respective positions of the mobiles after the second step which corresponds to the passage from January 31st to February 1st.
  • the intermediate gear 20 is in the middle of the toothed sector 12.
  • this pinion was already engaged with the toothing 31 of the mobile 30 months just before the second step, it is rotated by the intermediate mobile 20 during all the second step of the calendar mobile 10.
  • the greater angular displacement during the second step allows the distinctive zone 32 to instantly leave the previous window 41 and to appear simultaneously in the next window 41 by filling it.
  • the figures 3e, 3e ' illustrate the position of the mechanism after the fourth and last step.
  • the intermediate gear 20 is in a position similar to that which it had before the first step, as shown in FIG. figure 3a ' .
  • An inelastic angular locking member 50 of the month mobile 30 is integral with the intermediate gear 20 and serves to prevent inadvertent rotation of the mobile 30 months when the intermediate gear 20 is not engaged with the toothed sector 12
  • this angular locking member comprises at least one locking surface 51 in engagement with a circular surface 15, concentric and integral with the mobile of the calendars 10.
  • This locking surface is interrupted on an angular portion 16 at least equal to and coincident with that of the toothed sector 12. This interruption makes it possible to deactivate the angular locking member 50 to allow rotation of the locking surface 51 when the toothed sector 12 is in engagement with the intermediate gearwheel 20.
  • the angular locking member 50 which operates according to the principle of a Maltese cross, has the shape of a square, each side of which constitutes a locking surface 51.
  • the figures 5 and 6 show a first variant of the display device months, wherein the distinctive area 32 of the mobile months 30 is formed on a disk 34 which is integral and concentric with a toothed gear 33 with external teeth.
  • the toothed sector 12 of the dates mobile 10 is formed on the inner edge of this mobile 10.
  • the intermediate mobile 20 comprises two coaxial pinions 21 and 22.
  • the pinion 21 meshes with the toothed mobile 33, then that the pinion 22 is periodically engaged with the toothed sector 12 of the date wheel 10.
  • the training of the mobile of the months 30 takes place on two steps of the date mobile 10 as represented in the FIGS. 7a-7a 'to 7c-7c' .
  • the display of the dates on the dial 40 of the figure 7a indicates, for example, December 30.
  • the distinctive zone 32 carried by the disc 34 of the mobile of the months 30 is seen by transparency through the indicator dial 40.
  • the toothed sector 12 of the date mobile is not engaged with the second gear 22.
  • the Figures 7b and 7b ' show the position of the mechanism following the first step of driving the mobile 33.
  • the figure 7b shows that the distinctive zone 32 carried by the disk 34 still appears in the window 41 of the month of December while the date 31 appears in the window 43. Comparing the figures 7a and 7b it is noted that the distinctive zone 32 has moved almost all of its angular extent without however encroaching on the next window corresponding to the month of January.
  • FIGS. 7c and 7c ' show the positions of the mechanism after the second step during which the mobiles of the dates 10 and months 30 are in mesh.
  • the angular locking member 50 shown in FIG. figure 5 works on the same principle as that shown in figure 4 .
  • this locking member is here an octagon concentric with the pinions 21 and 22.
  • the toothed sector 12 of the mobile 10 is an internal toothing
  • the circular locking surface 15 is concave while it is convex on the figure 4 .
  • This locking surface is also interrupted on an angular portion 16 at least equal to and coincident with that of the toothed sector 12.
  • the windows 41 of the month display are located closer to the center of the dial 40.
  • the display of the months according to the first embodiment illustrated by FIG. figure 1 allows to disengage the central part of the dial 40 which can be used for the display of another time indication for example.
  • the second variant illustrated by the Figures 8a-8a 'and 8b-8b' has a mechanism quite similar to that of Figures 7a-7a ' .
  • each angular displacement of the mobile 30 months is carried out in a single step of the date mobile, after the display of the date 31 by the mobile.
  • the gear ratios between the different moving gears are shaped so that the moving month rotates 30 ° when the date mobile goes from 31 to 1, as shown in FIGS. Figures 8a and 8b on which it can be seen that the relative position of the distinctive zone 32 with respect to the window 41 in which it appears is always identical regardless of the date indicated in the window 43.
  • the toothed sector 12 of the mobile dates is reduced to a single tooth.
  • the mechanism of display of the months described above can be associated indifferently with a mechanism of simple, annual or perpetual calendar, instant jump or not.
  • the mechanism according to the invention requires no additional indexing jumper to the jumper 17, energy loss generator, and allows to distribute the energy required for the passage of the month on several jumps of date.
  • the distinctive zone 32 consists of an annular segment or a circular sector of color chosen to contrast with that of the support on which it is associated and with that of the dial 40.
  • the extent of this distinctive zone is sufficient to fill a window 41.
  • the angular dimension of this window relative to the center 42 of the dial 40 is typically between 5 ° and 20 °, preferably around 10 °.

Description

La présente invention se rapporte à une pièce d'horlogerie comportant un cadran indicateur, un mécanisme des quantièmes comprenant un mobile des quantièmes et un organe d'entraînement pas à pas de ce mobile, un mobile des mois, disposé au-dessous dudit cadran indicateur et relié au mobile des quantièmes par des moyens d'entraînement pas à pas conformés pour que ce mobile des mois tourne d'un angle de 30° chaque mois.The present invention relates to a timepiece comprising an indicator dial, a date mechanism comprising a date mobile and a step-by-step driving member of this mobile, a mobile of the months, disposed below said indicator dial. and connected to the mobile date of the month by means of stepping drive shaped so that the moving months turn at an angle of 30 ° each month.

Un dispositif indicateur de quantième et de mois de ce type est divulgué dans le document EP 1158374 .A date and month indicator device of this type is disclosed in the document EP 1158374 .

Si le calendrier est annuel ou perpétuel, la présence de l'indication du mois est nécessaire pour le réglage de la montre. Cependant, du fait de la complexité de la majorité des calendriers annuels ou perpétuels du marché, il y a un risque de voir apparaître des sauts non synchronisés entre les différentes indications, ce qui peut conduire à une incertitude de lecture de la date.If the calendar is annual or perpetual, the presence of the indication of the month is necessary for the setting of the watch. However, because of the complexity of the majority of the annual or perpetual calendars of the market, there is a risk of seeing unsynchronized jumps between the different indications, which can lead to an uncertainty of reading the date.

Comme illustré dans le document CH685585 , l'intégration d'un mécanisme complémentaire permettant d'afficher l'indication des mois nécessite généralement la mise en place d'un ou plusieurs sautoirs d'indexage additionnels. En contrepartie, l'accumulateur d'énergie du mécanisme des quantièmes doit délivrer une quantité d'énergie supplémentaire pour pouvoir vaincre la somme des couples produits par les multiples sautoirs. La perte d'énergie qui en résulte au niveau du balancier-spiral risque de provoquer une diminution de son amplitude et de nuire à la précision de la montre. La solution visant à réduire les couples des ressorts des sautoirs n'est pas indiquée car elle risque de provoquer des sauts trainants ou des doubles sauts de date intempestifs.As illustrated in the document CH685585 , the integration of a complementary mechanism for displaying the indication of the months usually requires the establishment of one or more additional indexing jumpers. In return, the energy accumulator of the date mechanism must deliver an additional amount of energy to be able to overcome the sum of the couples produced by the multiple jumpers. The resulting loss of energy at the sprung balance may cause a decrease in its amplitude and affect the accuracy of the watch. The solution to reduce the jumper springs is not indicated because it may cause jumping jumps or accidental double jumps.

Le CH 695 227 décrit un mécanisme des quantièmes perpétuel à saut instantané dont le mobile des quantièmes comporte deux grands disques de dates superposés. Le premier disque porte les dates des quinze premiers jours du mois et le second disque celles allant du 16 au 31. Une fenêtre est ménagée dans le premier disque entre le 15 et le 1 du mois pour que les quantièmes du second disque puissent être visibles à partir du 16. Le fonctionnement de ce calendrier est tributaire de la coopération et de la synchronisation de ces deux disques qui sont chacun entraînés en rotation par leur denture intérieure en prise avec un mobile d'entraînement distinct.The CH 695 227 describes a mechanism of perpetual instantaneous jump calendars whose mobile date has two large disks of superimposed dates. The first disc the dates of the first fifteen days of the month and the second disc those from 16 to 31. A window is provided in the first disc between 15 and 1 of the month so that the dates of the second disc can be seen from 16 The operation of this calendar is dependent on the cooperation and synchronization of these two disks which are each rotated by their internal teeth meshing with a separate drive wheel.

La programmation de l'entraînement des disques se fait par l'intermédiaire d'une came auxiliaire, d'un levier de commande et de commutateurs à ressorts fils, montés sur le premier disque et qui coopèrent avec la géométrie du deuxième. L'indication des mois est assurée par une petite aiguille, disposée au centre du mouvement, qui pointe en direction de l'un des douze index des heures faisant également office d'index des mois. La roue qui porte l'aiguille des mois est dénuée de ressort d'indexage, et est directement en prise avec le mobile indicateur des quantièmes par le biais d'un train d'engrenages et d'une croix de Malte pour le verrouillage et l'entraînement.The disk drive is programmed via an auxiliary cam, a control lever and wire spring switches, mounted on the first disk and cooperating with the geometry of the second disk. The indication of the months is ensured by a small needle, arranged in the center of the movement, which points towards one of the twelve indexes of the hours also acting as index of the months. The wheel which carries the month hand is devoid of indexing spring, and is directly engaged with the date indicator wheel by means of a gear train and a Maltese cross for locking and closing. 'training.

Cette solution présente l'inconvénient de mettre en oeuvre une liaison de type tenon-croix de Malte particulièrement sensible aux jeux radiaux des éléments du train de rouage. Cette solution impose une parfaite maîtrise des tolérances des jeux de pivotement au risque de voir apparaître des problèmes d'arc-boutement. D'autre part, les jeux angulaires des mobiles de la chaîne de rouage se répercutent directement sur le positionnement de l'aiguille des mois. Ainsi, l'alignement de l'aiguille des mois avec l'index des heures semble être délicat. Aussi, en cas de choc, la variation angulaire du disque des quantièmes sera directement répercutée sur le positionnement de l'aiguille. Une solution consiste à raccourcir au maximum l'aiguille des mois mais cela au détriment du confort de lecture.This solution has the disadvantage of implementing a link type Maltese-Maltese particularly sensitive to radial clearances of the elements of the gear train. This solution imposes a perfect control of the tolerances of the pivoting games at the risk of seeing problems of jamming. On the other hand, the angular play of the moving parts of the gear train directly affects the positioning of the hand of the months. Thus, the alignment of the hand of the months with the index of hours seems to be delicate. Also, in case of shock, the angular variation of the date disc will be directly reflected on the positioning of the needle. One solution is to shorten the needle month as much as possible, but this to the detriment of reading comfort.

Un autre inconvénient réside dans le fait que le mobile entraîneur de calendrier doit entraîner les disques des quantièmes sur un pas angulaire près de deux fois plus grand que la normale. Cela a des conséquences du point de vue de la consommation d'énergie et donc sur la précision de la montre. D'autre part, lors du passage de date à la fin des mois courts, l'instantanéité des sauts est garantie par les ressorts du premier disque coopérant avec la géométrie de la périphérie du deuxième disque des quantièmes. Ce mécanisme est difficile à mettre au point. Le risque de voir apparaître un saut de date traînant, et donc une incertitude au niveau de la lecture de cet affichage, est loin d'être négligeable.Another disadvantage lies in the fact that the mobile calendar carrier must drive the date discs on an angular step almost twice as large as normal. This has consequences from the point of view of energy consumption and therefore the accuracy of the watch. On the other hand, during the transition from date to the end of the short months, the instantaneous jumps are guaranteed by the springs of the first disc cooperating with the geometry of the periphery of the second date disc. This mechanism is difficult to develop. The risk of seeing a trailing date jump, and therefore an uncertainty in the reading of this display, is far from negligible.

Le but de la présente invention est de remédier au moins en partie aux inconvénients précités.The object of the present invention is to remedy at least in part the aforementioned drawbacks.

A cet effet, l'invention a pour objet une pièce d'horlogerie selon la revendication 1.For this purpose, the invention relates to a timepiece according to claim 1.

Ce dispositif d'affichage des mois peut être associé aussi bien à un calendrier classique qu'à un calendrier annuel, tel que décrit dans le EP 1 596 261 , ou à un calendrier perpétuel.This month display device can be associated with both a conventional calendar and an annual calendar, as described in the EP 1 596 261 , or a perpetual calendar.

Avantageusement, la zone distinctive du mobile des mois qui apparaît dans une des douze fenêtres ménagées dans le cadran présente une étendue angulaire supérieure à celle de cette fenêtre, en sorte que tout jeu de ce mobile devient indétectable.Advantageously, the distinctive area of the moving month that appears in one of the twelve windows in the dial has an angular extent greater than that of this window, so that any game of this mobile becomes undetectable.

Grâce à l'invention, le déplacement angulaire du mobile des mois peut s'effectuer sur plusieurs jours. En utilisant une zone distinctive s'étendant sur un secteur angulaire de 20° à 30°, le passage d'un mois à un autre apparaît comme étant instantané, bien qu'en réalité l'avance mensuelle du mobile des mois s'effectue en plusieurs jours. Par ce biais, l'énergie nécessaire à son déplacement peut être répartie sur une période plus longue. Ceci peut être avantageux dans le cas d'un quantième annuel ou perpétuel, car le mécanisme doit pouvoir enchaîner deux, trois, voire quatre sauts de quantième consécutifs.Thanks to the invention, the angular displacement of the mobile months can be performed over several days. By using a distinctive zone extending over an angular sector of 20 ° to 30 °, the transition from one month to another appears to be instantaneous, although in reality the monthly advance of month is done in several days. In this way, the energy required for its displacement can be spread over a longer period. This can be advantageous in the case of an annual or perpetual calendar, because the mechanism must be able to chain two, three, or even four consecutive date jumps.

Selon le mode de réalisation préféré, le mobile des quantièmes et le mobile des mois tournent en sens opposés. Par conséquent, les déplacements angulaires intempestifs de ces deux mobiles s'annulent et aucun déphasage entre les indications données par ces mobiles ne peut être provoqué, notamment en cas de chocs.According to the preferred embodiment, the date wheel and the month wheel rotate in opposite directions. Consequently, the untimely angular displacements of these two mobiles are canceled out and no phase difference between the indications given by these mobiles can be caused, in particular in case of shocks.

D'autres avantages et spécificités apparaîtront à la lumière de la description suivante relative à une forme d'exécution et à deux variantes de l'invention, illustrées schématiquement et à titre d'exemple par les figures annexées.

  • La figure 1 est une vue en plan de cette première forme d'exécution.
  • La figure 2 est une vue en plan de l'affichage associé à cette première forme d'exécution.
  • Les figures 3a, 3a' à 3e, 3e' sont des vues partielles en plan des figures 1 et 2, illustrant le passage séquentiel de l'indication d'un mois à un autre.
  • La figure 4 est une vue partielle de la figure 1.
  • Les figures 5 et 6 sont des vues en plan semblables aux figures 1 et 2 d'une première variante de l'invention.
  • Les figures 7a, 7a' à 7c, 7c' sont des représentations similaires à celles des figures 3a, 3a' de la première variante de l'invention.
  • Les figures 8a, 8a' et 8b, 8b' sont des vues en plan semblables à celles des figures 7a, 7a' d'une seconde variante de l'invention.
Other advantages and specific features will become apparent in the light of the following description relating to one embodiment and to two variants of the invention, illustrated schematically and by way of example in the appended figures.
  • The figure 1 is a plan view of this first embodiment.
  • The figure 2 is a plan view of the display associated with this first embodiment.
  • The figures 3a , 3a 'to 3e , 3rd ' are partial plan views of figures 1 and 2 , illustrating the sequential passage of the indication from one month to another.
  • The figure 4 is a partial view of the figure 1 .
  • The figures 5 and 6 are plan views similar to figures 1 and 2 of a first variant of the invention.
  • The figures 7a , 7a 'to 7c , 7c ' are representations similar to those of FIGS. 3a, 3a ' of the first variant of the invention.
  • The FIGS. 8a, 8a 'and 8b, 8b' are plan views similar to those of Figures 7a, 7a ' of a second variant of the invention.

La figure 1 représente un mécanisme des quantièmes 1 d'une pièce d'horlogerie, entraîné en rotation par une roue des heures 14. Ce mécanisme comprend un mobile des quantièmes 10 se présentant de préférence sous la forme d'un anneau pourvu d'une première denture annulaire 11 comportant trente-et-une dents. Cette denture est en prise avec un organe d'entraînement pas à pas 13 à saut instantané de type connu, et est indexée angulairement par un seul et unique sautoir 17. Le mobile des quantièmes 10 comprend une seconde denture formée par un secteur denté 12, destiné à engrener avec un mobile intermédiaire 20 en prise avec un mobile des mois 30 qui présente la forme d'une couronne à denture intérieure 31, en prise avec le mobile intermédiaire 20.The figure 1 represents a date mechanism 1 of a timepiece, driven in rotation by an hour wheel 14. This mechanism comprises a date mobile 10 preferably in the form of a ring provided with a first annular toothing 11 with thirty-one teeth. This toothing is in engagement with a step-by-step stepping member 13 of known type, and is indexed angularly by a single jumper 17. The date wheel 10 comprises a second toothing formed by a toothed sector 12, intended to mesh with an intermediate mobile 20 in engagement with a mobile of the month 30 which has the shape of a ring gear 31 internally engaged with the intermediate mobile 20.

Ce mobile des mois porte une zone distinctive 32 sur sa face sous-jacente à un cadran indicateur 40 (figure 2). Ce cadran présente douze fenêtres 41 angulairement équidistantes. La zone distinctive 32 est de préférence une zone colorée d'une couleur présentant un bon contraste avec celle du cadran et avec celle de la couronne des mois 30, mais elle peut aussi être une zone transparente qui laisse apparaître une couleur du bâti de la montre qui présente un bon contraste avec celle de la montre et avec celle de la couronne des mois 30.This mobile of the months carries a distinctive zone 32 on its face underlying an indicator dial 40 ( figure 2 ). This dial has twelve 41 angularly equidistant windows. The distinctive zone 32 is preferably a colored zone of a color having a good contrast with that of the dial and with that of the crown of the months 30, but it can also be a transparent zone which reveals a color of the frame of the watch which presents a good contrast with that of the watch and with that of the crown of the months 30.

L'étendue maximale de la zone distinctive 32 est limitée à un secteur d'angle égal à 30° alors que son étendue angulaire minimale n'est pas inférieure à celle d'une fenêtre 41.The maximum extent of the distinctive zone 32 is limited to a sector of angle equal to 30 ° while its minimum angular extent is not less than that of a window 41.

Lorsque le secteur denté 12 engrène avec le mobile intermédiaire 20, il entraîne ce dernier d'un angle donné. Vu que le mobile des quantièmes tourne d'un pas angulaire équivalent à un trente-et-unième de tour par pas, l'angle du secteur denté 12 conditionne le nombre de sauts effectués mensuellement par le mobile des mois 30. Le rapport d'engrenage du secteur denté 12 et du mobile intermédiaire 20 est choisi pour que le mobile des mois tourne d'un angle de 30° sur au moins un pas du mobile des quantièmes. Le nombre de pas est limité par l'étendue angulaire de la fenêtre, plus celle-ci est grande plus le nombre de pas admissible est faible.When the toothed sector 12 meshes with the intermediate mobile 20, it drives the latter from a given angle. Since the mobile of the calendars rotates with an angular step equivalent to a thirty-first of a turn in steps, the angle of the sector geared 12 conditions the number of jumps made monthly by the mobile of the months 30. The report of toothed sector gear 12 and intermediate gear 20 is chosen so that the moving month turns at an angle of 30 ° on at least one step of the mobile date. The number of steps is limited by the angular extent of the window, the larger it is, the smaller the number of permissible steps.

Les figures 3a-3a' à 3e-3e' illustrent les séquences du mobile des mois 30 pour un changement de mois qui s'effectue en quatre jours, c'est-à-dire en quatre pas du mobile des quantièmes 10.The Figures 3a-3a 'to 3e-3e' illustrate the sequences of the mobile of the month 30 for a change of month that takes place in four days, that is to say in four steps of the mobile date of 10.

La figure 3a représente une portion du mobile des mois 30 vue par transparence au travers du cadran indicateur 40. Ce dernier affiche le quantième 30 d'un mois de 31 jours à travers la fenêtre 43, par exemple, le 30 janvier. La figure 3a' montre l'engrènement du mobile intermédiaire 20 avec le mobile des quantièmes 10 d'une part et avec le mobile des mois 30 d'autre part.The figure 3a represents a portion of the mobile of the months 30 seen by transparency through the indicator dial 40. The latter displays the date 30 of a month of 31 days through the window 43, for example, January 30. The figure 3a ' shows the meshing of the intermediate mobile 20 with the date mobile 10 on the one hand and with the moving month 30 on the other hand.

Vu que le secteur denté 12 du mobile des quantièmes est une denture extérieure et que le mobile intermédiaire 20 est constitué d'un pignon qui engrène directement avec ce secteur denté 12 d'une part, et avec la denture 31 intérieure du mobile des mois d'autre part, le mobile des quantièmes et le mobile des mois tournent en sens opposés. Dans l'exemple décrit, le mobile des mois 30 tourne dans le sens des aiguilles d'une montre alors que celui des quantièmes 10 tourne en sens inverse.Since the toothed sector 12 of the date mobile is an external toothing and the intermediate mobile 20 is constituted by a pinion which meshes directly with the toothed sector 12 on the one hand, and with the internal toothing 31 of the mobile months of on the other hand, the mobile of the dates and the motive of the months turn in opposite directions. In the example described, the moving month 30 rotates in the direction of clockwise while the date of rotation 10 rotates in the opposite direction.

On remarque qu'au 30 janvier, le mobile intermédiaire 20 n'est pas encore en prise avec le mobile des quantièmes 10. Comme illustré par la figure 3a, la zone distinctive 32 remplit la fenêtre 41 qui correspond à l'indication du mois de janvier.Note that at January 30, the intermediate mobile 20 is not yet engaged with the calendar mobile 10. As illustrated by the figure 3a , the distinctive zone 32 fills the window 41 which corresponds to the indication of the month of January.

Les figures 3b, 3b' montrent le mécanisme au 31 janvier, après un premier saut de date. Le déplacement angulaire d'un pas du mobile des quantièmes 10 a mis en prise le secteur denté 12 avec le mobile intermédiaire 20. Il en a résulté une légère rotation du mobile des mois 30 durant laquelle l'extrémité arrière de la zone distinctive 32 s'est rapprochée du bord de la fenêtre 41 du mois de janvier.The Figures 3b, 3b ' show the mechanism on January 31, after a first date jump. The angular displacement of a pitch of the dates mobile 10 has brought the sector into dented 12 with the intermediate mobile 20. This resulted in a slight rotation of the mobile 30 months during which the rear end of the distinctive zone 32 has moved closer to the edge of the window 41 of January.

Les figures 3c, 3c' montrent les positions respectives des mobiles après le deuxième pas qui correspond au passage du 31 janvier au 1er février. Sur la figure 3c', le pignon intermédiaire 20 se trouve au milieu du secteur denté 12. Comme ce pignon était déjà en prise avec la denture 31 du mobile des mois 30 juste avant le second pas, celui-ci est entraîné en rotation par le mobile intermédiaire 20 durant tout le second pas du mobile des quantièmes 10. Il en résulte un déplacement angulaire du mobile des mois 30 plus important que lors du pas précédent illustré par les figures 3a-3a' et 3b, 3b'. Comme illustré par la figure 3c, le déplacement angulaire plus important lors du second pas permet à la zone distinctive 32 de quitter instantanément la fenêtre 41 précédente et d'apparaître simultanément dans la fenêtre 41 suivante en la remplissant.The Figures 3c, 3c ' show the respective positions of the mobiles after the second step which corresponds to the passage from January 31st to February 1st. On the figure 3c ' , the intermediate gear 20 is in the middle of the toothed sector 12. As this pinion was already engaged with the toothing 31 of the mobile 30 months just before the second step, it is rotated by the intermediate mobile 20 during all the second step of the calendar mobile 10. This results in an angular displacement of the mobile of the months 30 greater than in the previous step illustrated by the Figures 3a-3a ' and 3b, 3b ' . As illustrated by figure 3c , the greater angular displacement during the second step allows the distinctive zone 32 to instantly leave the previous window 41 and to appear simultaneously in the next window 41 by filling it.

La position après le troisième pas est représentée aux figures 3d, 3d', l'affichage indiquant le 2 février. On remarque que le pignon intermédiaire 20 se trouve à la sortie du secteur denté 12, dans une position symétrique à celle de la figure 3b' où ce pignon 20 se trouve à l'entrée de ce secteur denté.The position after the third step is shown in 3d figures, 3d ' , the display indicating 2 February. Note that the intermediate gear 20 is at the output of the toothed sector 12, in a position symmetrical to that of the figure 3b ' where this pinion 20 is at the entrance of this toothed sector.

Les figures 3e, 3e' illustrent la position du mécanisme après le quatrième et dernier pas. Par rapport au secteur denté 12, le pignon intermédiaire 20 se trouve dans une position similaire à celle qu'il avait avant le premier pas, comme représenté à la figure 3a'.The figures 3e, 3e ' illustrate the position of the mechanism after the fourth and last step. With respect to the toothed sector 12, the intermediate gear 20 is in a position similar to that which it had before the first step, as shown in FIG. figure 3a ' .

En observant les figures 3a à 3e, on constate que le mécanisme décrit permet d'obtenir un changement instantané des mois, alors que la rotation du mobile des mois se fait sur plusieurs jours, en autant de pas.By observing Figures 3a to 3e it is found that the mechanism described makes it possible to obtain an instantaneous change months, while the rotation of the mobile months is over several days, in as many steps.

Un organe de verrouillage angulaire non élastique 50 du mobile des mois 30 est solidaire du pignon intermédiaire 20 et sert à éviter toute rotation intempestive du mobile des mois 30 lorsque le pignon intermédiaire 20 n'est pas en prise avec le secteur denté 12An inelastic angular locking member 50 of the month mobile 30 is integral with the intermediate gear 20 and serves to prevent inadvertent rotation of the mobile 30 months when the intermediate gear 20 is not engaged with the toothed sector 12

Comme représenté à la figure 4, cet organe de verrouillage angulaire comporte au moins une surface de verrouillage 51 en prise avec une surface circulaire 15, concentrique et solidaire du mobile des quantièmes 10. Cette surface de verrouillage s'interrompt sur une portion angulaire 16 au moins égale et coïncidente à celle du secteur denté 12. Cette interruption permet de désactiver l'organe de verrouillage angulaire 50 pour autoriser la rotation de la surface de verrouillage 51 lorsque le secteur denté 12 est en prise avec le pignon intermédiaire 20.As represented in figure 4 this angular locking member comprises at least one locking surface 51 in engagement with a circular surface 15, concentric and integral with the mobile of the calendars 10. This locking surface is interrupted on an angular portion 16 at least equal to and coincident with that of the toothed sector 12. This interruption makes it possible to deactivate the angular locking member 50 to allow rotation of the locking surface 51 when the toothed sector 12 is in engagement with the intermediate gearwheel 20.

Dans l'exemple représenté, l'organe de verrouillage angulaire 50, qui fonctionne selon le principe d'une croix de Malte, a la forme d'un carré dont chaque côté constitue une surface de verrouillage 51.In the example shown, the angular locking member 50, which operates according to the principle of a Maltese cross, has the shape of a square, each side of which constitutes a locking surface 51.

En associant l'organe de verrouillage angulaire 50 au pignon intermédiaire 20, un seul organe permet alternativement d'entraîner, d'indexer et de verrouiller le mobile des mois.By associating the angular locking member 50 to the intermediate gear 20, a single member alternately allows to drive, index and lock the mobile months.

Les figures 5 et 6 montrent une première variante du dispositif d'affichage des mois, dans laquelle la zone distinctive 32 du mobile des mois 30 est ménagée sur un disque 34 qui est solidaire et concentrique d'un mobile denté 33 à denture extérieure. Le secteur denté 12 du mobile des quantièmes 10 est ménagé sur le bord intérieur de ce mobile 10. Le mobile intermédiaire 20 comporte deux pignons coaxiaux 21 et 22. Le pignon 21 engrène avec le mobile denté 33, alors que le pignon 22 est périodiquement en prise avec le secteur denté 12 du mobile des quantièmes 10.The figures 5 and 6 show a first variant of the display device months, wherein the distinctive area 32 of the mobile months 30 is formed on a disk 34 which is integral and concentric with a toothed gear 33 with external teeth. The toothed sector 12 of the dates mobile 10 is formed on the inner edge of this mobile 10. The intermediate mobile 20 comprises two coaxial pinions 21 and 22. The pinion 21 meshes with the toothed mobile 33, then that the pinion 22 is periodically engaged with the toothed sector 12 of the date wheel 10.

Dans cette première variante, l'entraînement du mobile des mois 30 se déroule sur deux pas du mobile des quantièmes 10 comme représenté dans les figures 7a-7a' à 7c-7c'.In this first variant, the training of the mobile of the months 30 takes place on two steps of the date mobile 10 as represented in the FIGS. 7a-7a 'to 7c-7c' .

L'affichage des quantièmes sur le cadran 40 de la figure 7a, indique, par exemple, le 30 décembre. La zone distinctive 32 portée par le disque 34 du mobile des mois 30 est vue par transparence au travers du cadran indicateur 40. A cet instant, on remarque à la figure 7a' que le secteur denté 12 du mobile des quantièmes n'est pas en prise avec le second pignon 22.The display of the dates on the dial 40 of the figure 7a , indicates, for example, December 30. The distinctive zone 32 carried by the disc 34 of the mobile of the months 30 is seen by transparency through the indicator dial 40. At this moment, we notice at the Figure 7a ' that the toothed sector 12 of the date mobile is not engaged with the second gear 22.

Les figures 7b et 7b' montrent la position du mécanisme suite au premier pas de l'entraînement du mobile 33. La figure 7b montre que la zone distinctive 32 portée par le disque 34 apparaît toujours dans la fenêtre 41 du mois de décembre alors que le quantième 31 apparaît dans le guichet 43. En comparant les figures 7a et 7b, on remarque que la zone distinctive 32 s'est déplacée de la presque totalité de son étendue angulaire sans toutefois empiéter sur la prochaine fenêtre correspondant au mois de janvier.The Figures 7b and 7b ' show the position of the mechanism following the first step of driving the mobile 33. The figure 7b shows that the distinctive zone 32 carried by the disk 34 still appears in the window 41 of the month of December while the date 31 appears in the window 43. Comparing the figures 7a and 7b it is noted that the distinctive zone 32 has moved almost all of its angular extent without however encroaching on the next window corresponding to the month of January.

Les figures 7c et 7c' montrent les positions du mécanisme après le deuxième pas durant lequel les mobiles des quantièmes 10 et des mois 30 sont en prise.The Figures 7c and 7c ' show the positions of the mechanism after the second step during which the mobiles of the dates 10 and months 30 are in mesh.

L'organe de verrouillage angulaire 50 représenté à la figure 5 fonctionne sur le même principe que celui représenté à la figure 4. Comme il est associé au mobile intermédiaire 20 de pas angulaire différent de celui du mobile intermédiaire de la forme d'exécution précédente, cet organe de verrouillage est ici un octogone concentrique aux pignons 21 et 22. En outre, comme le secteur denté 12 du mobile des quantièmes 10 est une denture intérieure, la surface de verrouillage circulaire 15 est concave alors qu'elle est convexe sur la figure 4. Cette surface de verrouillage s'interrompt aussi sur une portion angulaire 16 au moins égale et coïncidente à celle du secteur denté 12.The angular locking member 50 shown in FIG. figure 5 works on the same principle as that shown in figure 4 . As it is associated with the intermediate mobile 20 of angular pitch different from that of the intermediate mobile of the preceding embodiment, this locking member is here an octagon concentric with the pinions 21 and 22. In addition, as the toothed sector 12 of the mobile 10 is an internal toothing, the circular locking surface 15 is concave while it is convex on the figure 4 . This locking surface is also interrupted on an angular portion 16 at least equal to and coincident with that of the toothed sector 12.

Selon cette variante, les fenêtres 41 de l'affichage des mois sont situées plus près du centre du cadran 40. A contrario, l'affichage des mois selon la première forme d'exécution illustrée par la figure 1 permet de dégager la partie centrale du cadran 40 qui pourra être utilisée pour l'affichage d'une autre indication horaire par exemple.According to this variant, the windows 41 of the month display are located closer to the center of the dial 40. On the other hand, the display of the months according to the first embodiment illustrated by FIG. figure 1 allows to disengage the central part of the dial 40 which can be used for the display of another time indication for example.

La seconde variante illustrée par les figures 8a-8a' et 8b-8b' comporte un mécanisme tout à fait similaire à celui des figures 7a-7a'. Ici, chaque déplacement angulaire du mobile des mois 30 s'effectue au cours d'un seul pas du mobile des quantièmes, après l'affichage du quantième 31 par ce mobile. Ainsi, les rapports d'engrenage entre les différents mobiles en jeux sont conformés pour que le mobile des mois tourne de 30° lorsque le mobile des quantièmes passe du 31 au 1, comme représenté aux figures 8a et 8b sur lesquelles on voit que la position relative de la zone distinctive 32 par rapport à la fenêtre 41 dans laquelle elle apparaît est toujours identique quelle que soit la date indiquée dans le guichet 43. Comme représenté sur les figures 8a' et 8b' , le secteur denté 12 du mobile des quantièmes est réduit à une seule dent.The second variant illustrated by the Figures 8a-8a 'and 8b-8b' has a mechanism quite similar to that of Figures 7a-7a ' . Here, each angular displacement of the mobile 30 months is carried out in a single step of the date mobile, after the display of the date 31 by the mobile. Thus, the gear ratios between the different moving gears are shaped so that the moving month rotates 30 ° when the date mobile goes from 31 to 1, as shown in FIGS. Figures 8a and 8b on which it can be seen that the relative position of the distinctive zone 32 with respect to the window 41 in which it appears is always identical regardless of the date indicated in the window 43. As shown in FIGS. Figures 8a 'and 8b' , the toothed sector 12 of the mobile dates is reduced to a single tooth.

Le mécanisme d'affichage des mois décrit précédemment peut être associé indifféremment à un mécanisme des quantièmes simple, annuel ou perpétuel, à saut instantané ou non.The mechanism of display of the months described above can be associated indifferently with a mechanism of simple, annual or perpetual calendar, instant jump or not.

Quel que soit le mode d'exécution et pour autant que le mécanisme des quantièmes équipant la pièce d'horlogerie soit à saut instantané, le changement de mois tel qu'il apparaît sur le cadran 40 est également instantané et synchronisé avec le saut du mobile des quantièmes passant du 31 au 1.Whatever the mode of execution and as long as the mechanism of the calendars equipping the timepiece is instantaneous jump, the change of month as it appears on the dial 40 is also instantaneous and synchronized with the jump of the mobile dates from 31 to 1.

Grâce à ce mécanisme, les déplacements angulaires du mobile des mois résultant des jeux dans le mécanisme d'entraînement ne sont pas détectables dans les fenêtres 41 du cadran 40. En outre, le mécanisme selon l'invention ne requiert aucun sautoir d'indexage additionnel au sautoir 17, générateur de perte d'énergie, et permet de répartir l'énergie nécessaire au passage du mois sur plusieurs sauts de quantième.With this mechanism, the angular displacements of the mobile months resulting from the games in the drive mechanism are not detectable in the windows 41 of the dial 40. In addition, the mechanism according to the invention requires no additional indexing jumper to the jumper 17, energy loss generator, and allows to distribute the energy required for the passage of the month on several jumps of date.

De préférence, la zone distinctive 32 est constituée d'un segment annulaire ou d'un secteur circulaire de couleur choisie pour contraster avec celle du support sur laquelle elle est associée et avec celle du cadran 40. L'étendue de cette zone distinctive est suffisante pour remplir une fenêtre 41. La dimension angulaire de cette fenêtre par rapport au centre 42 du cadran 40, est typiquement comprise entre 5° et 20°, de préférence autour de 10°.Preferably, the distinctive zone 32 consists of an annular segment or a circular sector of color chosen to contrast with that of the support on which it is associated and with that of the dial 40. The extent of this distinctive zone is sufficient to fill a window 41. The angular dimension of this window relative to the center 42 of the dial 40, is typically between 5 ° and 20 °, preferably around 10 °.

Claims (9)

  1. A timepiece comprising an indicator dial (40), a days-of-the-month mechanism (1) comprising a days-of-the-month mobile (10) and a stepper drive member (13) for driving the days-of-the-month mobile (10), a months mobile (30) placed beneath said indicator dial (40) and connected to the days-of-the-month mobile (10) by stepper drive means (12, 20) formed so that the months mobile (30) turns through an angle of 30° each month, said indicator dial (40) having twelve windows (41) that are angularly equidistant, said months mobile (30) supporting a distinctive zone (32) of which the trajectory passes through said windows (41) and of which the angular extent is situated between a minimum corresponding to the angular extent of one of said windows (41) and a maximum of 30°, wherein said stepper drive means (12, 20) connecting the days-of-the-month mobile (10) to the months mobile (30) comprise a toothed sector (12) and an intermediate mobile (20) on the one hand, constantly engaged with a tooth gear (31) secured to the months mobile which extends over 360° and, on the other hand, suitable for being periodically engaged with said toothed sector (12).
  2. The timepiece as claimed in claim 1, wherein said months mobile (30) is a ring gear with internal teeth (31) and said toothed sector (12) of the days-of-the-month mobile (10) is an external tooth gear.
  3. The timepiece as claimed in claim 1, wherein said months mobile (30) comprises an external tooth gear (33) secured to and concentric with a disk (34) supporting said distinctive zone (32) and wherein said toothed sector (12) is an internal tooth gear.
  4. The timepiece as claimed in one of claims 1 to 3, wherein said stepper drive means (12, 20) are formed so that said months mobile (30) turns through said angle of 30° in at least one step of the days-of-the-month mobile (10).
  5. The timepiece as claimed in one of claims 1 to 3, wherein said stepper drive mans (12, 20) are formed so that said months mobile (30) turns through said angle of 30° in a number of steps ≥ 2 of the days-of-the-month mobile (10).
  6. The timepiece as claimed in one of claims 1 to 5, wherein said intermediate mobile (20) is secured to a nonelastic angular locking member (50) of the months mobile (30).
  7. The timepiece as claimed in claim 6, wherein said angular locking member (50) of the months mobile (30) comprises at least one locking surface (51) engaged with a circular surface (15) that is concentric with and secured to the days-of-the-month mobile (10) and which has an interruption (16) over an angular portion at least equal to and coincident with that of said toothed sector (12).
  8. The timepiece as claimed in claim 3, wherein said intermediate mobile (20) comprises a first pinion (21) engaging with said external tooth gear (33) of the months mobile (30) and a second pinion (22) concentric with and secured to the first, engaged periodically with said toothed sector (12) of the days-of-the-month mobile (10).
  9. The timepiece as claimed in one of the preceding claims, wherein said stepper drive member (13) of the days-of-the-month mobile (10) has instantaneous jump.
EP20100405209 2010-11-03 2010-11-03 Timepiece Active EP2428856B1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP13163812.4A EP2624075B1 (en) 2010-11-03 2010-11-03 Timepiece
EP20100405209 EP2428856B1 (en) 2010-11-03 2010-11-03 Timepiece
JP2011239888A JP5918502B2 (en) 2010-11-03 2011-11-01 clock
US13/287,469 US8830797B2 (en) 2010-11-03 2011-11-02 Timepiece
CN201110384826.9A CN102455653B (en) 2010-11-03 2011-11-02 Timepiece

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CH691149A5 (en) * 1996-07-03 2001-04-30 Nardin Ulysse Sa Watch mechanism for setting the time, date, month and year, which only uses gear wheels without levers
CH689601A5 (en) * 1998-03-05 1999-06-30 Piguet Frederic Sa Day of the month mechanism for timepiece
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EP1158374B1 (en) 2000-05-25 2008-09-24 Vaucher Manufacture Fleurier SA Calendar display mechanism
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DE05405291T1 (en) 2004-05-14 2006-05-18 Rolex Sa Annual calendar mechanism for clockwork
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CH695227A5 (en) 2005-03-29 2006-01-31 Moser Schaffhausen Ag Wristwatch with hour and minute hands has small dial for second hand and has extra hand indicating month and window showing figure on first or second ring for day of month
EP1785783B1 (en) * 2005-11-11 2011-10-12 Omega SA Annual calendar mechanism for a clock movement

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3173878A1 (en) 2015-11-26 2017-05-31 Rolex Sa Timepiece calendar system
EP3173876A1 (en) 2015-11-26 2017-05-31 Rolex Sa Timepiece calendar system
EP3173878B1 (en) * 2015-11-26 2021-05-26 Rolex Sa Timepiece calendar system
US11853008B2 (en) 2019-12-05 2023-12-26 Blancpain Sa Timepiece display mechanism with an instantaneous jump function

Also Published As

Publication number Publication date
EP2428856A1 (en) 2012-03-14
EP2624075A1 (en) 2013-08-07
US8830797B2 (en) 2014-09-09
EP2624075B1 (en) 2014-10-15
JP5918502B2 (en) 2016-05-18
CN102455653B (en) 2015-03-11
JP2012098284A (en) 2012-05-24
CN102455653A (en) 2012-05-16
US20120127835A1 (en) 2012-05-24

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