WO2020109916A1 - Timepiece moon phase indicator mechanism - Google Patents

Timepiece moon phase indicator mechanism Download PDF

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Publication number
WO2020109916A1
WO2020109916A1 PCT/IB2019/059823 IB2019059823W WO2020109916A1 WO 2020109916 A1 WO2020109916 A1 WO 2020109916A1 IB 2019059823 W IB2019059823 W IB 2019059823W WO 2020109916 A1 WO2020109916 A1 WO 2020109916A1
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WO
WIPO (PCT)
Prior art keywords
moon
wheel
window
representation
phase indicator
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Application number
PCT/IB2019/059823
Other languages
French (fr)
Inventor
Marco Tedeschi
Sergio Silva
Alejandro LAMAS
Original Assignee
Rj Watches 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 Rj Watches Sa filed Critical Rj Watches Sa
Publication of WO2020109916A1 publication Critical patent/WO2020109916A1/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
    • G04B19/26—Clocks or watches with indicators for tides, for the phases of the moon, or the like
    • G04B19/268—Clocks or watches with indicators for tides, for the phases of the moon, or the like with indicators for the phases of the moon

Definitions

  • the present invention relates to a mechanism indicating the moon phase of a timepiece.
  • the invention is particularly suitable for wristwatches but can also be applied to other time measurement mechanisms such as table clocks, wall clocks, clocks and pocket watches.
  • W02016107730 describes a mechanism indicating moon phases, for a timepiece provided with a movement and a dial, the mechanism indicating moon phases comprising at least one moon disc, and at least one gear train of moon placed under the dial and driven by the movement of the timepiece, the cog of the moon phases meshing with a moon phase wheel in the form of a toothed ring so as to move the moon disc to the periphery of the dial around an axis A arranged in the center of the dial, by means of the cog train of the moon phases.
  • the moon phase wheel carries at least indirectly and in a fixed manner the moon disc, by means of an intermediate piece, mounted on the toothed ring, the intermediate piece surrounding the dial as well as the movement.
  • EP152551581 discloses a device for displaying the phase of the moon comprising a first disc carrying a representation of the moon, arranged to be rotated at a first speed by a first gear train, a second disc bearing a marking having a regular succession of dark areas and bright areas, arranged to be rotated at a second speed different from said first speed, by a second train of toothed wheels, the two discs being arranged to be rotated about an axis of common rotation, the representation of the moon superimposed on the dark or light areas of the marking of said second disc giving a representation of the current phase of the moon and a third disc carrying a representation of the sun, the disc being mounted on a tree arranged to be in rotation by a clockwork mechanism at a speed of 1 t / 24 hours.
  • CH71062842 discloses a moon phase display device comprising a dial having an axis A, a moon disc, a mask positioned to mask all or part of the moon disc and means for driving the moon disc in rotation arranged for rotating the moon disk around the axis A.
  • the display device comprises means for adjusting the position of the mask so that the mask can pass from a first position in which the moon disk indicates the moon phases in the northern hemisphere, towards a second position in which the moon disc indicates the moon phases in the southern hemisphere, the rotation movement of the moon disc relative to the mask simulating the different phases of the moon.
  • the object of the present invention is to provide a mechanism indicating the moon phases of a timepiece.
  • the subject of the invention is therefore a mechanism for indicating moon phases comprising a representation of the full moon arranged with an eccentric axis on a disc driven in rotation by a central wheel.
  • the central wheel drives a peripheral wheel by means of a first gear, the peripheral wheel carrying the moon carrier disc by its axis so that the representation of the full moon orbit around the mechanism.
  • a moon window is arranged to obscure the representation of the full moon during its orbital trajectory, the moon window rotating relative to the axis of the moon.
  • the window is driven by an integral wheel engaging a second gear with a fixed wheel fixed in the center of the mechanism.
  • the mechanism is arranged such that the window compensates by turning in one direction while the moon rotates around the center of the mechanism in the other direction, so that the window or the moon keeps its orientation relative to the mechanism.
  • the peripheral wheel is a peripheral ring which surrounds the fixed wheel.
  • the peripheral ring has an internal toothing which engages with the first return.
  • the moon disc extends from the center of the mechanism to beyond the periphery of the peripheral wheel / ring.
  • the moonlight window has a disc of equal size, preferably larger, than the representation of the full moon.
  • the integral wheel which drives the moonlight window is coaxial with the axis by which the moon disk is mounted on the peripheral wheel / ring.
  • the representation of the full moon orbits around the periphery of the peripheral wheel / ring.
  • the moon shaker window pivots around the center of the moon carrier disc in the opposite direction to that of the moon.
  • the integral wheel and the fixed wheel have the same dimensions and the same number of teeth.
  • the invention also relates to a timepiece movement comprising a moon phase indicator mechanism or a timepiece in which the dial and / or the moon phase indicator mechanism is visible.
  • FIG. 1 shows a front view of the moon phase indicator mechanism with a full moon
  • FIG. 2 shows a front view of the moon phase indicator mechanism with a moon in the first quarter position
  • FIG. 3 shows a front view in transparency of a part of the mechanism for viewing the central wheel
  • - Figure 4 shows a front view in transparency of a part of the mechanism for viewing the integral wheel and the second reference;
  • FIG. 5 shows a perspective view of the moon phase mechanism
  • FIG. 6 shows a perspective view of a wristwatch comprising a mechanism indicating the moon phase according to the present invention.
  • a mechanism indicating the moon phases of a timepiece includes a representation of the full moon 1 arranged with its eccentric axis on a disc 9 driven in rotation by a central wheel 2.
  • the wheel central 2 drives a peripheral wheel 3 by means of a first return 4, this peripheral wheel 3 carrying the moon-carrier disc 9 by its axis so that the representation of the full moon 1 orbit around the mechanism while keeping its radial orientation relative to the mechanism.
  • the window orbits the mechanism and the moon keeps its radial orientation, which is the reverse of the illustrated version.
  • a moon window 5 is arranged to obscure the representation of the full moon 1 during its orbital trajectory, the window 5 pivoting relative to the axis of the moon 1.
  • the window 5 is driven by an integral wheel 6 meshing with a second gear 7 with a fixed wheel 8 fixed to the center of the mechanism.
  • the integral wheel 6 and the fixed wheel 8 have the same dimensions and the same number of teeth such that the window 5 compensates, by turning in one direction while the moon 1 rotates around the center of the mechanism in the other direction, so that the window 5 keeps its orientation relative to the mechanism.
  • the window 5 goes around the movement in a cycle of 29d 13h 20min. Thanks to this configuration, the cycle is slower than the real cycle of the moon, that is to say 29d 12h 44mn 15s, so that there is only need to correct the cycle once to put the phase back moon in phase with the real cycle, a correction every 3 years and 3 months approximately, more precisely, every 3.24 years. The correction of the cycle of the moon phase will therefore be done by advancing the representation of the moon by 1 day.
  • a wristwatch includes a moon phase indicator mechanism whose representation of the moon 1 rotates while keeping its radial orientation relative to the mechanism, and whose aperture 5 retains its orientation relative to the mechanism. It is the combination of these two movements that creates a gap between the window 5 and the representation of the moon 1 thus allowing the display of the moon phase.
  • the moon phase indicator mechanism orbits orbitally in a dial space while being positioned in the center of the watch.
  • the moon phase indicator mechanism is arranged between the indexes fixed on the dial and the time indicator hands.
  • the representation of the moon 1 is driven by a central wheel 2 making one jump per day and advancing one 14th of a turn with each jump.
  • This central wheel 2 drives a peripheral wheel 3 on which the representation of the moon 1 is fixed by means of a reference 4.
  • the relationship between the central wheel 2, in this example comprising 63 teeth, and the peripheral wheel 3, comprising in this example 133 teeth, makes it possible to arrive at the desired rotation period starting from a 14-day cycle for the first.
  • a ratio between a central wheel 2 comprising 64 teeth, and a peripheral wheel 3, comprising 135 teeth would allow a cycle closer to reality, that is to say 29d 12h 45m, while retaining the advantage of the correction single every 122.12 years.
  • the mechanism would include a two-stage gear, each of the stages of which would mesh with one of the two wheels.
  • the moon window 5 pivots on the axis of the representation of the moon.
  • the moon window 5 is driven by an integral wheel 6 which meshes through a reference 7 with a wheel 8 of the same size fixed in the center of the mechanism.
  • the moon window 5 compensates by turning in one direction what the representation of the moon 1 rotates around the center of the mechanism in the other direction. So in one turn mechanism, the moon makes a turn in one direction when the aperture 5 makes a turn in the opposite direction which makes the rotation of the aperture 5 zero with respect to the mechanism.

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

Abstract

A timepiece moon phase indicator mechanism comprises a representation of the full moon arranged with its axis eccentric on a disc driven by a central wheel driving a peripheral wheel, this peripheral wheel bearing the moon-bearing disc via its axis so that the representation of the full moon orbits around the mechanism. The mechanism comprises a moon window designed to conceal the representation of the full moon on its orbital path, the window pivoting with respect to the axis of the moon. The mechanism is arranged in such a way that the window compensates by rotating in one direction whereas the moon rotates about the centre of the mechanism in the other direction, so that the window or the moon maintains its orientation with respect to the mechanism.

Description

Mécanisme indicateur de phase de lune d’une pièce d’horlogerie Moon phase indicator mechanism of a timepiece
La présente invention se rapporte à un mécanisme indicateur de phase de lune d’une pièce d’horlogerie. L’invention est particulièrement adaptée aux montres bracelets mais peut également s’appliquer à d’autres mécanismes de mesure du temps tels les pendules de table, les pendules murales, les horloges et les montres de poches. The present invention relates to a mechanism indicating the moon phase of a timepiece. The invention is particularly suitable for wristwatches but can also be applied to other time measurement mechanisms such as table clocks, wall clocks, clocks and pocket watches.
W02016107730 décrit un mécanisme indicateur de phases de lune, pour une pièce d'horlogerie munie d'un mouvement et d'un cadran, le mécanisme indicateur de phases de lune comprenant au moins un disque de lune, et au moins un rouage de phases de lune disposé sous le cadran et entraîné par le mouvement de la pièce d'horlogerie, le rouage des phases de lune engrenant avec une roue de phases de lune se présentant sous la forme d'un anneau denté de manière à déplacer le disque de lune à la périphérie du cadran autour d'un axe A agencé au centre du cadran, par le biais du rouage de phases de lune. La roue des phases de lune porte au moins indirectement et de manière fixe le disque de lune, par le biais d'une pièce intermédiaire, montée sur l'anneau denté, la pièce intermédiaire entourant le cadran ainsi que le mouvement. Une des différences entre le mécanisme de la présente invention et ce document réside notamment dans l’absence de pièce intermédiaire entourant le cadran. W02016107730 describes a mechanism indicating moon phases, for a timepiece provided with a movement and a dial, the mechanism indicating moon phases comprising at least one moon disc, and at least one gear train of moon placed under the dial and driven by the movement of the timepiece, the cog of the moon phases meshing with a moon phase wheel in the form of a toothed ring so as to move the moon disc to the periphery of the dial around an axis A arranged in the center of the dial, by means of the cog train of the moon phases. The moon phase wheel carries at least indirectly and in a fixed manner the moon disc, by means of an intermediate piece, mounted on the toothed ring, the intermediate piece surrounding the dial as well as the movement. One of the differences between the mechanism of the present invention and this document lies in particular in the absence of an intermediate part surrounding the dial.
EP152551581 divulgue un dispositif d'affichage de la phase de la lune comprenant un premier disque portant une représentation de la lune, agencé pour être mis en rotation à une première vitesse par un premier train de roues dentées, un deuxième disque portant un marquage présentant une succession régulière de zones sombres et de zones claires, agencé pour être, mis en rotation à une deuxième vitesse différente de ladite première vitesse, par un deuxième train de roues dentées, les deux disques étant agencés pour être en rotation autour d'un axe de rotation commun, la représentation de la lune superposée aux zones sombres ou claires du marquage dudit deuxième disque donnant une représentation de la phase actuelle de la lune et un troisième disque portant une représentation du soleil, le disque étant monté sur un arbre agencé pour être en rotation par un mécanisme d'horlogerie à une vitesse de 1 t / 24 heures. L'arbre portant le troisième disque porte aussi la première roue dentée des premiers et deuxièmes trains de roues dentées. CH71062842 divulgue un dispositif d'affichage de phases de lune comprenant un cadran présentant un axe A, un disque de lune, un masque positionné pour masquer en tout ou partie le disque de lune et des moyens d'entraînement en rotation du disque de lune agencés pour déplacer en rotation le disque de lune autour de l'axe A. Le dispositif d'affichage comprend des moyens de réglage de la position du masque de manière que le masque peut passer d'une première position dans laquelle le disque de lune indique les phases de lune dans l'hémisphère Nord, vers une deuxième position dans laquelle le disque de lune indique les phases de lune dans l'hémisphère Sud, le déplacement en rotation du disque de lune par rapport au masque simulant les différentes phases de la lune. EP152551581 discloses a device for displaying the phase of the moon comprising a first disc carrying a representation of the moon, arranged to be rotated at a first speed by a first gear train, a second disc bearing a marking having a regular succession of dark areas and bright areas, arranged to be rotated at a second speed different from said first speed, by a second train of toothed wheels, the two discs being arranged to be rotated about an axis of common rotation, the representation of the moon superimposed on the dark or light areas of the marking of said second disc giving a representation of the current phase of the moon and a third disc carrying a representation of the sun, the disc being mounted on a tree arranged to be in rotation by a clockwork mechanism at a speed of 1 t / 24 hours. The shaft carrying the third disc also carries the first gear of the first and second sets of gear wheels. CH71062842 discloses a moon phase display device comprising a dial having an axis A, a moon disc, a mask positioned to mask all or part of the moon disc and means for driving the moon disc in rotation arranged for rotating the moon disk around the axis A. The display device comprises means for adjusting the position of the mask so that the mask can pass from a first position in which the moon disk indicates the moon phases in the northern hemisphere, towards a second position in which the moon disc indicates the moon phases in the southern hemisphere, the rotation movement of the moon disc relative to the mask simulating the different phases of the moon.
Le but de la présente invention est de fournir un mécanisme indicateur de phases de lune d’une pièce d'horlogerie. The object of the present invention is to provide a mechanism indicating the moon phases of a timepiece.
L’invention a ainsi pour objet un mécanisme indicateur de phases de lune comportant une représentation de la pleine lune agencée avec un axe excentré sur un disque entraîné en rotation par une roue centrale. La roue centrale entraîne une roue périphérique par l’intermédiaire d’un premier renvoi, la roue périphérique portant le disque porte-lune par son axe de manière à ce que la représentation de la pleine lune orbite autour du mécanisme. Un guichet de lune est agencé pour occulter la représentation de la pleine lune lors de sa trajectoire orbitale, le guichet de lune pivotant par rapport à l’axe de la lune. Le guichet est entraîné par une roue solidaire engrenant un second renvoi avec une roue fixe fixée au centre du mécanisme. Le mécanisme est agencé tel que le guichet compense en tournant dans un sens alors que la lune tourne autour du centre du mécanisme dans l’autre sens, de manière à ce que le guichet ou la lune garde son orientation par rapport au mécanisme. The subject of the invention is therefore a mechanism for indicating moon phases comprising a representation of the full moon arranged with an eccentric axis on a disc driven in rotation by a central wheel. The central wheel drives a peripheral wheel by means of a first gear, the peripheral wheel carrying the moon carrier disc by its axis so that the representation of the full moon orbit around the mechanism. A moon window is arranged to obscure the representation of the full moon during its orbital trajectory, the moon window rotating relative to the axis of the moon. The window is driven by an integral wheel engaging a second gear with a fixed wheel fixed in the center of the mechanism. The mechanism is arranged such that the window compensates by turning in one direction while the moon rotates around the center of the mechanism in the other direction, so that the window or the moon keeps its orientation relative to the mechanism.
Dans une forme d’exécution, la roue périphérique est un anneau périphérique qui entoure la roue fixe. In one embodiment, the peripheral wheel is a peripheral ring which surrounds the fixed wheel.
Selon cette forme d’exécution, l’anneau périphérique a une denture interne qui s’engage avec le premier renvoi. Typiquement, le disque porte-lune s’étend depuis le centre du mécanisme jusqu’au-delà de la périphérie de la roue/anneau périphérique. According to this embodiment, the peripheral ring has an internal toothing which engages with the first return. Typically, the moon disc extends from the center of the mechanism to beyond the periphery of the peripheral wheel / ring.
Le guichet cache-lune comporte un disque de dimension égale, de préférence plus grande, que la représentation de la pleine lune. The moonlight window has a disc of equal size, preferably larger, than the representation of the full moon.
Dans une forme d’exécution, la roue solidaire qui entraîne le guichet cache-lune est coaxiale avec l’axe par lequel le disque porte-lune est monté sur la roue/anneau périphérique. In one embodiment, the integral wheel which drives the moonlight window is coaxial with the axis by which the moon disk is mounted on the peripheral wheel / ring.
De préférence, la représentation de la pleine lune orbite autour de la périphérie de la roue/anneau périphérique. Preferably, the representation of the full moon orbits around the periphery of the peripheral wheel / ring.
Dans une forme d’exécution, de manière à rester statique par rapport au mouvement de la représentation de la lune, le guichet cache-lune pivote autour du centre du disque porte-lune dans le sens inverse à celui de la lune. In one embodiment, so as to remain static with respect to the movement of the representation of the moon, the moon shaker window pivots around the center of the moon carrier disc in the opposite direction to that of the moon.
Dans une forme d’exécution, la roue solidaire et la roue fixe ont les mêmes dimensions et le même nombre de dents. In one embodiment, the integral wheel and the fixed wheel have the same dimensions and the same number of teeth.
L’invention concerne aussi un mouvement horloger comportant un mécanisme indicateur de phases de lune ou une pièce d’horlogerie dans lequel le cadran et/ou le mécanisme indicateur de phases de lune est visible. The invention also relates to a timepiece movement comprising a moon phase indicator mechanism or a timepiece in which the dial and / or the moon phase indicator mechanism is visible.
Les caractéristiques de l’invention apparaîtront plus clairement à la lecture de la description de plusieurs formes d’exécution données uniquement à titre d’exemple, nullement limitative en se référant aux figures schématiques, dans lesquelles : The characteristics of the invention will appear more clearly on reading the description of several embodiments given solely by way of example, in no way limiting with reference to the schematic figures, in which:
- La figure 1 représente une vue de face du mécanisme indicateur de phase de lune avec une pleine lune ; - Figure 1 shows a front view of the moon phase indicator mechanism with a full moon;
- La figure 2 représente une vue de face du mécanisme indicateur de phase de lune avec une lune en position premier quartier ; - Figure 2 shows a front view of the moon phase indicator mechanism with a moon in the first quarter position;
- La figure 3 représente une vue de face en transparence d’une partie du mécanisme permettant de visualiser la roue centrale ; - La figure 4 représente une vue de face en transparence d’une partie du mécanisme permettant de visualiser la roue solidaire et le second renvoi ; - Figure 3 shows a front view in transparency of a part of the mechanism for viewing the central wheel; - Figure 4 shows a front view in transparency of a part of the mechanism for viewing the integral wheel and the second reference;
- La figure 5 représente une vue en perspective du mécanisme de phase de lune ; et - Figure 5 shows a perspective view of the moon phase mechanism; and
- La figure 6 représente une vue en perspective d’une montre bracelet comportant un mécanisme indicateur de la phase de lune selon la présente invention. - Figure 6 shows a perspective view of a wristwatch comprising a mechanism indicating the moon phase according to the present invention.
Comme illustré aux figures 1 et 3, un mécanisme indicateur de phases de lune d’une pièce d'horlogerie comprend une représentation de la pleine lune 1 agencée avec son axe excentré sur un disque 9 entraîné en rotation par une roue centrale 2. La roue centrale 2 entraîne une roue périphérique 3 par l’intermédiaire d’un premier renvoi 4, cette roue périphérique 3 portant le disque porte-lune 9 par son axe de manière à ce que la représentation de la pleine lune 1 orbite autour du mécanisme tout en gardant son orientation radiale par rapport au mécanisme. As illustrated in FIGS. 1 and 3, a mechanism indicating the moon phases of a timepiece includes a representation of the full moon 1 arranged with its eccentric axis on a disc 9 driven in rotation by a central wheel 2. The wheel central 2 drives a peripheral wheel 3 by means of a first return 4, this peripheral wheel 3 carrying the moon-carrier disc 9 by its axis so that the representation of the full moon 1 orbit around the mechanism while keeping its radial orientation relative to the mechanism.
Dans une variante non illustrée, le guichet orbite autour du mécanisme et la lune garde son orientation radiale, ce qui est l’inverse de la version illustrée. In a variant not illustrated, the window orbits the mechanism and the moon keeps its radial orientation, which is the reverse of the illustrated version.
Comme illustré aux figures 2, 4 et 5, un guichet 5 de lune est agencé pour occulter la représentation de la pleine lune 1 lors de sa trajectoire orbitale, le guichet 5 pivotant par rapport à l’axe de la lune 1 . As illustrated in FIGS. 2, 4 and 5, a moon window 5 is arranged to obscure the representation of the full moon 1 during its orbital trajectory, the window 5 pivoting relative to the axis of the moon 1.
Comme cela est clairement visible à la figure 4, le guichet 5 est entraîné par une roue solidaire 6 engrenant un second renvoi 7 avec une roue fixe 8 fixée au centre du mécanisme. La roue solidaire 6 et la roue fixe 8 ont les mêmes dimensions et le même nombre de dents tel que le guichet 5 compense, en tournant dans un sens alors que la lune 1 tourne autour du centre du mécanisme dans l’autre sens, de manière à ce que le guichet 5 garde son orientation par rapport au mécanisme. As is clearly visible in Figure 4, the window 5 is driven by an integral wheel 6 meshing with a second gear 7 with a fixed wheel 8 fixed to the center of the mechanism. The integral wheel 6 and the fixed wheel 8 have the same dimensions and the same number of teeth such that the window 5 compensates, by turning in one direction while the moon 1 rotates around the center of the mechanism in the other direction, so that the window 5 keeps its orientation relative to the mechanism.
Dans cet exemple, le guichet 5 fait le tour du mouvement en un cycle de 29j 13h 20min. Grâce à cette configuration, le cycle est plus lent que le cycle réel de la lune, soit de 29j 12h 44mn 15s, de manière à ce qu’il n’y ait besoin de corriger le cycle qu’une seule fois pour remettre la phase de lune en phase avec le cycle réel, soit une correction tous les 3ans et 3mois environ, de manière plus précise, tous les 3.24ans. La correction du cycle de la phase de lune se fera donc en avançant la représentation de la lune de 1 jour. In this example, the window 5 goes around the movement in a cycle of 29d 13h 20min. Thanks to this configuration, the cycle is slower than the real cycle of the moon, that is to say 29d 12h 44mn 15s, so that there is only need to correct the cycle once to put the phase back moon in phase with the real cycle, a correction every 3 years and 3 months approximately, more precisely, every 3.24 years. The correction of the cycle of the moon phase will therefore be done by advancing the representation of the moon by 1 day.
Comme illustré à la figure 6, une montre-bracelet comporte un mécanisme indicateur de phase de lune dont la représentation de la lune 1 tourne en gardant son orientation radiale par rapport au mécanisme, et dont le guichet 5 conserve son orientation par rapport au mécanisme. C’est la combinaison de ces deux mouvements qui crée un décalage entre le guichet 5 et la représentation de la lune 1 permettant ainsi l’affichage de la phase de lune. Dans cet exemple, le mécanisme indicateur de phase de lune gravite de manière orbitale dans un espace cadran en étant positionné au centre de la montre. Le mécanisme indicateur de phase de lune est agencé entre les index fixés sur le cadran et les aiguilles indicatrices de l’heure. As illustrated in FIG. 6, a wristwatch includes a moon phase indicator mechanism whose representation of the moon 1 rotates while keeping its radial orientation relative to the mechanism, and whose aperture 5 retains its orientation relative to the mechanism. It is the combination of these two movements that creates a gap between the window 5 and the representation of the moon 1 thus allowing the display of the moon phase. In this example, the moon phase indicator mechanism orbits orbitally in a dial space while being positioned in the center of the watch. The moon phase indicator mechanism is arranged between the indexes fixed on the dial and the time indicator hands.
Comme illustré à la figure 3, la représentation de la lune 1 est entraînée par une roue centrale 2 faisant un saut par jour et avançant d’un 14ème de tour à chaque saut. Bien entendu, même si l’exemple décrit un mécanisme d’entrainement par sauts, d’autres configurations non illustrées sont possibles et notamment une version traînante du mécanisme. Cette roue centrale 2 entraîne une roue périphérique 3 sur laquelle est fixée la représentation de la lune 1 par l’intermédiaire d’un renvoi 4. Le rapport entre la roue centrale 2, comportant dans cet exemple 63 dents, et la roue périphérique 3, comportant dans cet exemple 133 dents, permet d’arriver à la période de rotation voulue en partant d’un cycle de 14 jours pour la première. As illustrated in FIG. 3, the representation of the moon 1 is driven by a central wheel 2 making one jump per day and advancing one 14th of a turn with each jump. Of course, even if the example describes a jump training mechanism, other configurations not illustrated are possible and in particular a trailing version of the mechanism. This central wheel 2 drives a peripheral wheel 3 on which the representation of the moon 1 is fixed by means of a reference 4. The relationship between the central wheel 2, in this example comprising 63 teeth, and the peripheral wheel 3, comprising in this example 133 teeth, makes it possible to arrive at the desired rotation period starting from a 14-day cycle for the first.
Dans une variante non illustrée, un rapport entre une roue centrale 2 comportant 64 dents, et une roue périphérique 3, comportant 135 dents, permettrait un cycle plus proche de la réalité, soit 29j 12h 45m, tout en conservant l’avantage de la correction simple tous les 122.12 ans. Selon cette variante, le mécanisme comporterait un renvoi à deux étages dont chacun des étages engrènerait avec une des deux roues. In a variant not illustrated, a ratio between a central wheel 2 comprising 64 teeth, and a peripheral wheel 3, comprising 135 teeth, would allow a cycle closer to reality, that is to say 29d 12h 45m, while retaining the advantage of the correction single every 122.12 years. According to this variant, the mechanism would include a two-stage gear, each of the stages of which would mesh with one of the two wheels.
Comme illustré à la figure 4, le guichet de lune 5 pivote sur l’axe de la représentation de la lune. Le guichet de lune 5 est entraîné par une roue solidaire 6 qui engrène à travers un renvoi 7 avec une roue 8 de même dimension fixée au centre du mécanisme. Comme les deux roues 6 et 8 ont le même nombre de dents le guichet de lune 5 compense en tournant dans un sens ce que la représentation de la lune 1 tourne autour du centre du mécanisme dans l’autre sens. Ainsi, en un tour de mécanisme, la lune fait un tour dans un sens quand le guichet 5 fait un tour dans le sens inverse ce qui rend la rotation du guichet 5 nulle par rapport au mécanisme. As illustrated in FIG. 4, the moon window 5 pivots on the axis of the representation of the moon. The moon window 5 is driven by an integral wheel 6 which meshes through a reference 7 with a wheel 8 of the same size fixed in the center of the mechanism. As the two wheels 6 and 8 have the same number of teeth, the moon window 5 compensates by turning in one direction what the representation of the moon 1 rotates around the center of the mechanism in the other direction. So in one turn mechanism, the moon makes a turn in one direction when the aperture 5 makes a turn in the opposite direction which makes the rotation of the aperture 5 zero with respect to the mechanism.
Les rapports entre les différentes roues décrits précédemment sont donnés à titre d’exemple et ne sont pas limitatifs. Ainsi, d’autres rapports entre les roues sont possible. The relationships between the different wheels described above are given by way of example and are not limiting. Thus, other relationships between the wheels are possible.

Claims

REVENDICATIONS
1. Mécanisme indicateur de phases de lune d’une pièce d'horlogerie, le mécanisme indicateur de phases de lune comprenant : 1. Mechanism indicating the moon phases of a timepiece, the mechanism indicating the moon phases comprising:
- Une représentation de la pleine lune (1 ) agencée avec son axe excentré sur un disque (9) entraîné en rotation par une roue centrale (2), ladite roue centrale (2) entraînant une roue périphérique (3) par l’intermédiaire d’un premier renvoi (4), cette roue périphérique (3) portant le disque porte-lune (9) par son axe de manière à ce que la représentation de la pleine lune (1 ) orbite autour du mécanisme, et - A representation of the full moon (1) arranged with its eccentric axis on a disc (9) driven in rotation by a central wheel (2), said central wheel (2) driving a peripheral wheel (3) via 'a first return (4), this peripheral wheel (3) carrying the moon-carrier disc (9) by its axis so that the representation of the full moon (1) orbit around the mechanism, and
- Un guichet (5) de lune agencé pour occulter la représentation de la pleine lune (1 ) lors de sa trajectoire orbitale, le guichet (5) pivotant par rapport à l’axe de la lune (1 ), ledit guichet étant entraîné par une roue solidaire (6) engrenant un second renvoi (7) avec une roue fixe (8) fixée au centre du mécanisme, - A moon window (5) arranged to hide the representation of the full moon (1) during its orbital trajectory, the window (5) pivoting relative to the axis of the moon (1), said window being driven by an integral wheel (6) meshing with a second gear (7) with a fixed wheel (8) fixed to the center of the mechanism,
- Le mécanisme étant agencé tel que le guichet (5) compense en tournant dans un sens alors que la lune (1 ) tourne autour du centre du mécanisme dans l’autre sens, de manière à ce que le guichet (5) ou la lune (1 ) garde son orientation par rapport au mécanisme. - The mechanism being arranged such that the window (5) compensates by turning in one direction while the moon (1) rotates around the center of the mechanism in the other direction, so that the window (5) or the moon (1) keeps its orientation relative to the mechanism.
2. Mécanisme indicateur de phases de la lune selon la revendication 1 , où la roue périphérique est un anneau périphérique (3) qui entoure la roue fixe (8). 2. Moon phase indicator mechanism according to claim 1, wherein the peripheral wheel is a peripheral ring (3) which surrounds the fixed wheel (8).
3. Mécanisme indicateur de phases de la lune selon la revendication 2, où l’anneau périphérique (3) a une denture interne qui s’engage avec le premier renvoi (4). 3. Moon phase indicator mechanism according to claim 2, wherein the peripheral ring (3) has an internal toothing which engages with the first gear (4).
4. Mécanisme indicateur de phases de la lune selon l’une quelconque des revendications précédentes, où le disque porte-lune (9) s’étend depuis vers le centre du mécanisme jusqu’au-delà de la périphérie de la roue/anneau périphérique (3). 4. Moon phase indicator mechanism according to any one of the preceding claims, in which the moon-carrier disc (9) extends from towards the center of the mechanism to beyond the periphery of the peripheral wheel / ring. (3).
5. Mécanisme indicateur de phases de la lune selon l’une quelconque des revendications précédentes, où le guichet cache-lune comporte un disque (5) de dimension égale ou de préférence plus grande que la représentation de la pleine lune (1 ). 5. Moon phase indicator mechanism according to any one of the preceding claims, in which the moon-concealer window comprises a disc (5) of equal or preferably larger size than the representation of the full moon (1).
6. Mécanisme indicateur de phases de la lune selon l’une quelconque des revendications précédentes, où la roue solidaire (6) qui entraîne le guichet cache- lune (5)) est coaxiale avec l’axe par lequel le disque porte-lune est monté sur la roue/anneau périphérique (3). 6. Moon phase indicator mechanism according to any one of the preceding claims, in which the integral wheel (6) which drives the moon mask window (5)) is coaxial with the axis by which the moon carrier disc is mounted on the peripheral wheel / ring (3).
7. Mécanisme indicateur de phases de la lune selon l’une quelconque des revendications précédentes, où la représentation de la pleine lune orbite autour de la périphérie de la roue/anneau périphérique (3). 7. Moon phase indicator mechanism according to any one of the preceding claims, wherein the representation of the full moon orbit around the periphery of the peripheral wheel / ring (3).
8. Mécanisme indicateur de phases de la lune selon l’une quelconque des revendications précédentes, où le guichet cache-lune (5) pivote autour de centre du disque porte-lune (9). 8. Moon phase indicator mechanism according to any one of the preceding claims, in which the moon mask window (5) pivots around the center of the moon carrier disc (9).
9. Mécanisme indicateur de phases de la lune selon l’une quelconque des revendications précédentes, où la roue solidaire (6) et la roue fixe (8) ont les mêmes dimensions et le même nombre de dents. 9. Moon phase indicator mechanism according to any one of the preceding claims, in which the integral wheel (6) and the fixed wheel (8) have the same dimensions and the same number of teeth.
10. Mouvement horloger comportant un mécanisme indicateur de phases de la lune selon l’une quelconque des revendications précédentes. 10. Watch movement comprising a mechanism indicating the phases of the moon according to any one of the preceding claims.
11. Pièce d’horlogerie comportant le mouvement horloger selon la revendication 10 et un cadran où le mécanisme indicateur de phases de la lune est visible. 11. Timepiece comprising the timepiece movement according to claim 10 and a dial where the mechanism indicating the phases of the moon is visible.
PCT/IB2019/059823 2018-11-30 2019-11-15 Timepiece moon phase indicator mechanism WO2020109916A1 (en)

Applications Claiming Priority (2)

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CH01476/18A CH715606A1 (en) 2018-11-30 2018-11-30 Moon phase indicator mechanism for a timepiece.
CH01476/18 2018-11-30

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Citations (3)

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EP2728420A1 (en) * 2012-11-06 2014-05-07 Montres Breguet SA Astronomical watch
WO2016107730A1 (en) 2014-12-31 2016-07-07 Blancpain Sa Moon phase indicator mechanism

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FR2365173A1 (en) * 1976-09-15 1978-04-14 Dhelens Jean Paul Perpetual calendar including lunar cycle display - has central axis representing position of sun, and rotating discs showing earth and moon
CH705128B1 (en) * 2011-06-16 2015-10-15 Télôs Watch SA Device date display and moon phase.
DE102013109288B3 (en) * 2013-08-27 2014-05-22 Lange Uhren Gmbh Clock i.e. wrist watch, has moon-view aperture rotatably drivable in relation to rotating movement of large-moon pane, so that dark circular areas are provided in coverage and out of overage by rotating movement of small-moon pane
CH710450B1 (en) * 2014-12-09 2018-06-29 Richemont Int Sa Timepiece with orbital display.

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Publication number Priority date Publication date Assignee Title
WO2004013708A2 (en) * 2002-07-31 2004-02-12 Ulysse Nardin Sa Displaying device
EP1525515A2 (en) 2002-07-31 2005-04-27 Ulysse Nardin S.A. Displaying device
EP2728420A1 (en) * 2012-11-06 2014-05-07 Montres Breguet SA Astronomical watch
WO2016107730A1 (en) 2014-12-31 2016-07-07 Blancpain Sa Moon phase indicator mechanism

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