EP2315082B1 - Mechanical movement with regulating organ comprising at least two balances - Google Patents

Mechanical movement with regulating organ comprising at least two balances Download PDF

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Publication number
EP2315082B1
EP2315082B1 EP10178111.0A EP10178111A EP2315082B1 EP 2315082 B1 EP2315082 B1 EP 2315082B1 EP 10178111 A EP10178111 A EP 10178111A EP 2315082 B1 EP2315082 B1 EP 2315082B1
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EP
European Patent Office
Prior art keywords
balance
movement
watch
mechanical
regulating member
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EP10178111.0A
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German (de)
French (fr)
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EP2315082B8 (en
EP2315082A3 (en
EP2315082A2 (en
Inventor
Gilles Pellet
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Manufacture dHorlogerie Audemars Piguet SA
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Manufacture dHorlogerie Audemars Piguet SA
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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
    • G04B17/00—Mechanisms for stabilising frequency
    • G04B17/04—Oscillators acting by spring tension
    • G04B17/06—Oscillators with hairsprings, e.g. balance
    • 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
    • G04B17/00—Mechanisms for stabilising frequency
    • G04B17/04—Oscillators acting by spring tension
    • G04B17/06—Oscillators with hairsprings, e.g. balance
    • G04B17/063—Balance construction
    • 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
    • G04B17/00—Mechanisms for stabilising frequency
    • G04B17/20—Compensation of mechanisms for stabilising frequency
    • 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
    • G04B45/00—Time pieces of which the indicating means or cases provoke special effects, e.g. aesthetic effects
    • G04B45/02—Time pieces of which the clockwork is visible partly or wholly
    • 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
    • G04B18/00—Mechanisms for setting frequency
    • G04B18/006—Mechanisms for setting frequency by adjusting the devices fixed on the balance

Definitions

  • the present invention relates to a movement comprising a motor, a gear train, an exhaust and a regulating member, the cog transmitting the driving force coming from the engine to said exhaust and said exhaust cooperating with said regulating member so as to maintain the oscillations of the regulating member.
  • a movement comprising a motor, a gear train, an exhaust and a regulating member, the cog transmitting the driving force coming from the engine to said exhaust and said exhaust cooperating with said regulating member so as to maintain the oscillations of the regulating member.
  • which comprises a first balance and a first balance spring, said first balance being fixed on an axis, the regulating member comprising at least a second balance fixed on the axis of said first balance, as well as a timepiece comprising such a movement .
  • the regulating organ of a mechanical timepiece is normally composed of a balance and a balance spring and forms the oscillating part of the movement of the timepiece.
  • this central part that constitutes the regulating organ has since the invention of mechanical watches constantly been the object of improvements and developments.
  • the regulating member has been used for a good number of years so as to increase the aesthetics of mechanical watches, for example by equipping watch cases with a transparent sapphire back so that the one can observe the movement of the watch, in particular the beats of the regulating organ of the watch.
  • This solution has a disadvantage, namely, in order to be able to observe all the elegance of this part of the movement, it is necessary to remove the watch from the wrist of the wearer and turn it over, except in skeleton or tourbillon watches which have a opening in the dial and in which the observation of the regulating organ is normally done by this side of the watch.
  • the document US 3,186,157 discloses a regulating member for an electronic or mechanical watch which comprises at least one pendulum whose ends of the axis are not fixed in bearings, the pendulum being in fact suspended by at least one spiral spring.
  • the latter has a dual function, namely to support the pendulum axis and provide the restoring force during the oscillation of the pendulum.
  • Certain embodiments of this regulating member have two pendulums mounted so rigid on the same axis, this axis being fixed, approximately in the middle along its length, to a spiral spring which carries the axis.
  • the document FR 2 160 835 discloses a circular balance for an electric watch, the balance consisting of an upper plate made of a non-magnetic material and a magnetic material combined as well as a lower plate similarly made of a non-magnetic material and a magnetic material combined, the balance being still equipped with several permanent magnets and cooperating with corresponding fixed coils. Since the latter device is used in an electric watch and has the corresponding specific characteristics, it is not suitable for use in a mechanical timepiece.
  • the object of the present invention is therefore to remedy the drawbacks of the currently known regulating members and to achieve the abovementioned advantages, in particular to allow the realization of a movement for mechanical timepieces whose running precision is improved without too much increase the complexity, the volume occupied, even the production cost, and which is suitable for being visually enhanced in the corresponding mechanical watch, this as much when the watch is worn, that is to say through the watch crystal, only when the watch is removed from the wrist and turned upside down, that is to say through a sapphire crystal case back.
  • the present invention provides a mechanical movement, which is distinguished by the characteristics set out in claim 1, or even a corresponding timepiece.
  • the regulating member of a movement according to the present invention comprises at least one second hairspring arranged on said at least second pendulum and the escapement is arranged at least partially between said first pendulum and said second pendulum of the regulating member .
  • the movement according to the present invention also has the advantage of making it easier to start the two balance springs, since the presence of a second pendulum on the same axis mainly removes the difficulty. of vision to distinguish between the two hairsprings which arose for the adjuster of the watch in the devices of the prior art.
  • the movement according to the present invention by being equipped with two pendulums on an axis, is obviously ideally suited to be highlighted visually through transparent windows located on both sides of a mechanical watch.
  • a movement according to the present invention is intended to be integrated in a mechanical timepiece, in particular in a mechanical watch whose watch case makes it possible to perceive the movement of the watch and in in particular the oscillation of the balance of the regulating member, this preferably on both sides of the watch.
  • a regulating member 1 of such a movement comprises a first balance 2.1 and a first balance spring 3.1, this balance 2.1 and the balance spring 3.1 being mounted near a first end 4.1 of the axis 4 of the balance.
  • the regulating member comprises at least a second balance 2.2 fixed on the same axis 4 as the first balance 2.1 and rigidly with respect to the latter.
  • the second balance 2.2 is mounted close to the other end 4.2 of the axis 4, as shown diagrammatically in the vertical section of the figure 2 .
  • the regulating member 1 of a movement according to the present invention advantageously also comprises at least one second hairspring 3.2 which is arranged on the second pendulum 2.2.
  • said first balance spring 3.1 and said second balance spring 3.2 are each arranged on the outward-facing side of said first balance 2.1 respectively of said second balance 2.2.
  • Figures 3a and 3b which respectively show a top view of the regulating member of a movement according to the present invention and a top view of the lower part of the regulating member along the line IIIb-IIIb indicated in the figure 2 .
  • a movement comprising the characteristics mentioned above according to the present invention thus has the following advantages.
  • the running precision of a mechanical movement incorporating such a regulating member is improved by the fact that the inertia of the balance has been approximately doubled without increasing the diameter of the device.
  • the precision of the pendulum's oscillation period can significantly be improved when two balance springs are used, in particular when using flat balance springs.
  • the latter could be replaced by hairsprings of the Breguet type or any other type of hairsprings known to those skilled in the art, but it is preferable to use, in the preferred embodiment of the movement according to the present invention, two or even generally an even number of simple flat balance springs, this because they make it possible to obtain almost the same performance result in terms of movement accuracy of the movement as the use of Breguet type balance springs, or even a better result if the Breguet curve of the balance spring is not perfectly controlled.
  • the movement according to the present invention using two pendulums and two hairsprings then makes it possible to optimize the precision of the oscillation of the pendulum without requiring too high a complexity or a volume of the device, which makes it possible to carry out the present invention at costs. relatively moderate production.
  • the mechanical watch may be equipped with a watch case comprising, on its two sides, that is to say on the dial side as well as on the back side of the watch, transparent windows through which the mechanical movement and in particular the oscillation of the pendulum can be observed.
  • the movement according to the present invention having two pendulums at the respective ends 4.1, 4.2 of the axis 4, the oscillation of at least one of the pendulums 2.1, 2.2 beating in synchronism can then be observed optimally through one of the windows corresponding side dial or back side of the watch case, without the pendulum that the observer has decided to admire is hidden by other parts of the mechanical movement.
  • the present invention proposes, thanks to the use of two pendulums 2.1, 2.2, to separate the two hairsprings 3.1, 3.2 by a relatively large axial distance, which allows the watch adjuster to decently carry out the operations control or adjustment or even the start-up, this in an almost traditional way because the two hairsprings can thus be considered as being independent, the first hairspring 3.1 not disturbing the start-up of the second hairspring 3.2 by superposition.
  • a regulating member 1 of a movement according to the present invention could also, in a constellation not illustrated in the figures, comprise more than two pendulums fixed on the same axis 4, for example a third pendulum fixed on the axis 4 of said first balance 2.1 and second balance 2.2 and arranged between the latter. Furthermore, such a regulating member 1 also generally comprises an even number of hairsprings each mounted on one of said pendulums, for example a hairspring fixed to the first second pendulum respectively and two hairsprings mounted on each side of said third pendulum, or four pendulums each with a corresponding hairspring.
  • the pendulums can also have a different diameter, height, and / or shape, this within the limit of the space available or even other technical constraints and according to the desired aesthetic . He is still it should be noted that the hairspring or even the hairsprings of the regulating member of a movement according to the present invention are mounted in a conventional manner to the pendulum and to the pendulum bridges by means of a ferrule and a stud.
  • the regulating member of a movement according to the present invention can cooperate in a conventional manner with the other parts of the mechanical movement of the watch, namely with the engine, the train and the escapement of the movement.
  • the escapement of a watch movement according to the present invention is arranged at least partially between said first balance 2.1 and second balance 2.2 of the regulating member 1.
  • a timepiece equipped with such a mechanical movement also forms the object of the present invention, in particular in the event of such a specific arrangement of the exhaust.
  • the present invention provides a movement for a mechanical timepiece whose running precision is improved without greatly increasing the technical complexity or the production costs and which is ideally suited to be visually enhanced through windows on both sides of the watch case, thus contributing significantly to the aesthetics of the timepiece.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Springs (AREA)
  • Electromechanical Clocks (AREA)
  • Gears, Cams (AREA)
  • Micromachines (AREA)
  • Transmission Devices (AREA)
  • Electric Clocks (AREA)

Description

Domaine technique de l'inventionTechnical field of the invention

La présente invention concerne un mouvement comprenant un moteur, un rouage, un échappement et un organe régulateur, le rouage transmettant la force motrice provenant du moteur audit échappement et ledit échappement coopérant avec ledit organe régulateur de manière à entretenir les oscillations de l'organe régulateur qui comporte un premier balancier et un premier spiral, ledit premier balancier étant fixé sur un axe, l'organe régulateur comprenant au moins un deuxième balancier fixé sur l'axe dudit premier balancier, ainsi qu'une pièce d'horlogerie comportant un tel mouvement.The present invention relates to a movement comprising a motor, a gear train, an exhaust and a regulating member, the cog transmitting the driving force coming from the engine to said exhaust and said exhaust cooperating with said regulating member so as to maintain the oscillations of the regulating member. which comprises a first balance and a first balance spring, said first balance being fixed on an axis, the regulating member comprising at least a second balance fixed on the axis of said first balance, as well as a timepiece comprising such a movement .

État de l'art antérieurState of the prior art

L'organe régulateur d'une pièce d'horlogerie mécanique est normalement composé d'un balancier et d'un spiral et forme la partie oscillante du mouvement de la pièce d'horlogerie. D'une part, déterminant par sa période d'oscillation la précision de la pièce d'horlogerie mécanique et, d'autre part, étant perçu comme le cœur vivant d'un objet inanimé du fait de son « battement », cette partie centrale que constitue l'organe régulateur a depuis l'invention des montres mécaniques constamment été l'objet d'améliorations et de développements.The regulating organ of a mechanical timepiece is normally composed of a balance and a balance spring and forms the oscillating part of the movement of the timepiece. On the one hand, determining by its period of oscillation the precision of the mechanical timepiece and, on the other hand, being perceived as the living heart of an inanimate object due to its "beat", this central part that constitutes the regulating organ has since the invention of mechanical watches constantly been the object of improvements and developments.

Par exemple, dans le souci d'améliorer la précision des montres mécaniques, c'est-à-dire d'améliorer la précision de la période d'oscillation de l'organe régulateur, il a été proposé par le passé d'intégrer dans l'organe régulateur un deuxième spiral, ceci selon plusieurs variantes en modifiant notamment la position du deuxième spiral. Dans le même contexte s'inscrivent également les dispositifs réalisés par le passé dans lesquels l'organe régulateur est composé de deux voir plusieurs balanciers spiraux agencés sur des axes parallèles. Ces derniers dispositifs sont relativement complexes et volumineux, par conséquent assez difficiles et coûteux à produire.For example, in order to improve the precision of mechanical watches, that is to say to improve the precision of the period of oscillation of the regulating member, it has been proposed in the past to integrate into the regulating member a second hairspring, according to several variants, notably by modifying the position of the second hairspring. In the same context also the devices produced in the past in which the regulating member is made up of two or even several spiral pendulums arranged on parallel axes. These latter devices are relatively complex and bulky, therefore quite difficult and expensive to produce.

A part les développements techniques mentionnés ci-dessus ainsi que d'autres efforts non mentionnés dans cette description pour des raisons de volume et qui ciblent principalement la précision de marche de la pièce d'horlogerie mécanique correspondante, d'autres développements techniques ont été réalisés qui visent notamment à augmenter l'attractivité esthétique des montres correspondantes. En particulier, l'organe régulateur est utilisé depuis déjà un bon nombre d'années de manière à augmenter l'esthétique des montres mécaniques, par exemple en équipant les boîtes de montres d'un fond transparent en saphir de façon à ce que l'on puisse observer le mouvement de la montre, notamment les battements de l'organe régulateur de la montre. Cette solution présente un désavantage, à savoir que, pour pouvoir observer toute l'élégance de cette partie du mouvement, il est nécessaire d'ôter la montre du poignet du porteur et de la retourner, sauf dans les montres squelettes ou tourbillon qui ont une ouverture dans le cadran et dans lesquelles l'observation de l'organe régulateur se fait normalement par ce côté de la montre.Apart from the technical developments mentioned above as well as other efforts not mentioned in this description for reasons of volume and which mainly target the running precision of the corresponding mechanical timepiece, other technical developments have been made which aim in particular to increase the aesthetic appeal of the corresponding watches. In particular, the regulating member has been used for a good number of years so as to increase the aesthetics of mechanical watches, for example by equipping watch cases with a transparent sapphire back so that the one can observe the movement of the watch, in particular the beats of the regulating organ of the watch. This solution has a disadvantage, namely, in order to be able to observe all the elegance of this part of the movement, it is necessary to remove the watch from the wrist of the wearer and turn it over, except in skeleton or tourbillon watches which have a opening in the dial and in which the observation of the regulating organ is normally done by this side of the watch.

D'autres développements techniques réalisés par le passé ciblent des pièces d'horlogerie électroniques. Par exemple, le document US 3 186 157 divulgue un organe régulateur pour une montre électronique ou mécanique qui comporte au moins un balancier dont les extrémités de l'axe ne sont pas fixées dans des paliers, le balancier étant en effet suspendu par au moins un ressort spiral. Ce dernier possède une double fonction, à savoir supporter l'axe du balancier et fournir la force de rappel lors de l'oscillation du balancier. Certaines formes d'exécution de cet organe régulateur possèdent deux balanciers montés de façon rigide sur un même axe, cet axe étant fixé, environ au milieu le long de sa longueur, à un ressort spiral qui porte l'axe. De façon similaire, le document FR 2 160 835 divulgue un balancier circulaire pour une montre électrique, le balancier étant constitué d'une plaque supérieure fabriquée en un matériau non-magnétique et en un matériau magnétique combinés ainsi que d'une plaque inférieure fabriquée de même en un matériau non-magnétique et en un matériau magnétique combinés, le balancier étant encore équipé de plusieurs aimants permanents et coopérant avec des bobines fixes correspondantes. Étant donné que ce dernier dispositif est utilisé dans une montre électrique et dispose des caractéristiques spécifiques correspondantes, il n'est pas adapté à être utilisé dans une pièce d'horlogerie mécanique.Other technical developments carried out in the past target electronic timepieces. For example, the document US 3,186,157 discloses a regulating member for an electronic or mechanical watch which comprises at least one pendulum whose ends of the axis are not fixed in bearings, the pendulum being in fact suspended by at least one spiral spring. The latter has a dual function, namely to support the pendulum axis and provide the restoring force during the oscillation of the pendulum. Certain embodiments of this regulating member have two pendulums mounted so rigid on the same axis, this axis being fixed, approximately in the middle along its length, to a spiral spring which carries the axis. Similarly, the document FR 2 160 835 discloses a circular balance for an electric watch, the balance consisting of an upper plate made of a non-magnetic material and a magnetic material combined as well as a lower plate similarly made of a non-magnetic material and a magnetic material combined, the balance being still equipped with several permanent magnets and cooperating with corresponding fixed coils. Since the latter device is used in an electric watch and has the corresponding specific characteristics, it is not suitable for use in a mechanical timepiece.

Objectifs de l'inventionObjectives of the invention

Considérant alors les dispositifs de l'art antérieur passé brièvement en revue ci-dessus, il est à constater qu'il serait souhaitable de disposer d'un mouvement pour pièces d'horlogerie mécanique qui réponde encore mieux aux exigences actuelles en ce qui concerne sa précision de marche ainsi que son aptitude à être utilisé de manière à mettre en valeur visuellement le mouvement et notamment le balancier.Considering then the devices of the prior art briefly reviewed above, it should be noted that it would be desirable to have a movement for mechanical timepieces which meets even better the current requirements as regards its precision of walking as well as its ability to be used so as to visually enhance the movement and in particular the pendulum.

Le but de la présente invention est donc de remédier aux inconvénients des organes régulateurs connus actuellement et de réaliser les avantages susmentionnés, notamment de permettre la réalisation d'un mouvement pour pièces d'horlogerie mécanique dont la précision de marche est améliorée sans pour autant trop augmenter la complexité, le volume occupé, voire le coût de production, et qui est adapté à être mis en valeur visuellement dans la montre mécanique correspondante, ceci autant quand la montre est portée, c'est-à-dire à-travers la glace de la montre, que quand la montre est enlevée du poignet et retournée, c'est-à-dire à travers un fond en saphir de la boîte de montre.The object of the present invention is therefore to remedy the drawbacks of the currently known regulating members and to achieve the abovementioned advantages, in particular to allow the realization of a movement for mechanical timepieces whose running precision is improved without too much increase the complexity, the volume occupied, even the production cost, and which is suitable for being visually enhanced in the corresponding mechanical watch, this as much when the watch is worn, that is to say through the watch crystal, only when the watch is removed from the wrist and turned upside down, that is to say through a sapphire crystal case back.

Solution selon l'inventionSolution according to the invention

A cet effet, la présente invention propose un mouvement mécanique, qui se distingue par les caractéristiques énoncées à la revendication 1, voire une pièce d'horlogerie correspondante. En particulier, l'organe régulateur d'un mouvement selon la présente invention comprend au moins un deuxième spiral arrangé sur ledit au moins deuxième balancier et l'échappement est arrangé au moins partiellement entre ledit premier balancier et ledit deuxième balancier de l'organe régulateur.To this end, the present invention provides a mechanical movement, which is distinguished by the characteristics set out in claim 1, or even a corresponding timepiece. In particular, the regulating member of a movement according to the present invention comprises at least one second hairspring arranged on said at least second pendulum and the escapement is arranged at least partially between said first pendulum and said second pendulum of the regulating member .

Par ces mesures, on obtient un mouvement mécanique pour des pièces d'horlogerie mécaniques doté d'organe régulateur qui offre une précision de marche très élevée du fait de sa grande inertie obtenue sans augmentation du diamètre du dispositif et du fait d'être équipé de deux ressorts spiraux. Par rapport au dispositif de l'art antérieur utilisant deux spiraux, le mouvement selon la présente invention a aussi l'avantage de faciliter la mise en marche des deux spiraux, car la présence d'un deuxième balancier sur le même axe enlève majoritairement la difficulté de vision pour distinguer entre les deux spiraux qui se posait pour le régleur de la montre dans les dispositifs de l'art antérieur. De plus, le mouvement selon la présente invention, en étant équipé de deux balanciers sur un axe, est évidemment idéalement adapté à être mis en valeur visuellement à-travers des fenêtres transparentes se trouvant des deux côtés d'une montre mécanique.By these measurements, a mechanical movement is obtained for mechanical timepieces provided with a regulating member which offers a very high operating precision due to its great inertia obtained without increasing the diameter of the device and from being equipped with two spiral springs. Compared to the device of the prior art using two balance springs, the movement according to the present invention also has the advantage of making it easier to start the two balance springs, since the presence of a second pendulum on the same axis mainly removes the difficulty. of vision to distinguish between the two hairsprings which arose for the adjuster of the watch in the devices of the prior art. In addition, the movement according to the present invention, by being equipped with two pendulums on an axis, is obviously ideally suited to be highlighted visually through transparent windows located on both sides of a mechanical watch.

D'autres caractéristiques, ainsi que les avantages correspondants, ressortiront des revendications dépendantes, ainsi que de la description exposant ci après l'invention plus en détail.Other characteristics, as well as the corresponding advantages, will emerge from the dependent claims, as well as from the description setting out below the invention in more detail.

Brève description des dessinsBrief description of the drawings

Les dessins annexés représentent, à titre d'exemple, une forme d'exécution de l'invention.

  • La figure 1 est une vue en perspective d'un organe régulateur selon la présente invention.
  • La figure 2 est une coupe verticale à travers l'organe régulateur selon la présente invention.
  • La figure 3a est une vue de dessus de l'organe régulateur selon la ligne IIIa-IIIa indiquée dans la figure 2; la figure 3b est une vue de dessus de l'organe régulateur, partiellement en coupe horizontale à travers la ligne IIIb-IIIb indiquée dans la figure 2.
The accompanying drawings show, by way of example, an embodiment of the invention.
  • The figure 1 is a perspective view of a regulating member according to the present invention.
  • The figure 2 is a vertical section through the regulating member according to the present invention.
  • The figure 3a is a top view of the regulating organ along line IIIa-IIIa indicated in the figure 2 ; the figure 3b is a top view of the regulating member, partially in horizontal section through the line IIIb-IIIb indicated in the figure 2 .

Description détaillée de l'inventionDetailed description of the invention

L'invention va maintenant être décrite en détail en référence aux dessins annexés illustrant à titre d'exemple une forme d'exécution de l'invention.The invention will now be described in detail with reference to the accompanying drawings illustrating by way of example an embodiment of the invention.

Un mouvement selon la présente invention est destiné à être intégré dans une pièce d'horlogerie mécanique, notamment dans une montre mécanique dont la boîte de montre permet d'apercevoir le mouvement de la montre et en particulier l'oscillation du balancier de l'organe régulateur, ceci de préférence des deux côtés de la montre. Comme cela ressort de la figure 1, un organe régulateur 1 d'un tel mouvement comprend un premier balancier 2.1 et un premier spiral 3.1, ce balancier 2.1 et le spiral 3.1 étant montés proches d'une première extrémité 4.1 de l'axe 4 du balancier. L'organe régulateur comprend au moins un deuxième balancier 2.2 fixé sur le même axe 4 que le premier balancier 2.1 et de manière rigide par rapport à ce dernier. De préférence, le deuxième balancier 2.2 est monté proche de l'autre extrémité 4.2 de l'axe 4, tel que cela est illustré schématiquement à la coupe verticale de la figure 2.A movement according to the present invention is intended to be integrated in a mechanical timepiece, in particular in a mechanical watch whose watch case makes it possible to perceive the movement of the watch and in in particular the oscillation of the balance of the regulating member, this preferably on both sides of the watch. As is clear from the figure 1 , a regulating member 1 of such a movement comprises a first balance 2.1 and a first balance spring 3.1, this balance 2.1 and the balance spring 3.1 being mounted near a first end 4.1 of the axis 4 of the balance. The regulating member comprises at least a second balance 2.2 fixed on the same axis 4 as the first balance 2.1 and rigidly with respect to the latter. Preferably, the second balance 2.2 is mounted close to the other end 4.2 of the axis 4, as shown diagrammatically in the vertical section of the figure 2 .

Il ressort également des figures 1 et 2 que l'organe régulateur 1 d'un mouvement selon la présente invention comprend de manière avantageuse également au moins un deuxième spiral 3.2 qui est arrangé sur le deuxième balancier 2.2. Dans une forme d'exécution préférée de la présente invention et tel qu'illustré notamment à la figure 2, ledit premier spiral 3.1 ainsi que ledit deuxième spiral 3.2 sont chacun arrangés sur le côté orienté vers l'extérieur dudit premier balancier 2.1 respectivement dudit deuxième balancier 2.2. Cette disposition est également illustrée aux figures 3a et 3b qui montrent respectivement une vue de dessus de l'organe régulateur d'un mouvement selon la présente invention et une vue de dessus de la partie inférieure de l'organe régulateur le long de la ligne IIIb-IIIb indiquée dans la figure 2.It also emerges from Figures 1 and 2 that the regulating member 1 of a movement according to the present invention advantageously also comprises at least one second hairspring 3.2 which is arranged on the second pendulum 2.2. In a preferred embodiment of the present invention and as illustrated in particular in the figure 2 , said first balance spring 3.1 and said second balance spring 3.2 are each arranged on the outward-facing side of said first balance 2.1 respectively of said second balance 2.2. This provision is also illustrated in Figures 3a and 3b which respectively show a top view of the regulating member of a movement according to the present invention and a top view of the lower part of the regulating member along the line IIIb-IIIb indicated in the figure 2 .

Un mouvement comportant les caractéristiques mentionnées ci-dessus selon la présente invention présente ainsi les avantages suivants.A movement comprising the characteristics mentioned above according to the present invention thus has the following advantages.

D'une part, la précision de marche d'un mouvement mécanique intégrant un tel organe régulateur est améliorée du fait que l'inertie du balancier a été approximativement doublée sans pour autant augmenter le diamètre du dispositif. De même, la précision de la période d'oscillation du balancier peut sensiblement être améliorée en cas d'utilisation de deux spiraux, notamment en cas d'utilisation des spiraux plats. Ces derniers pourraient être remplacés par des spiraux de type Breguet ou tout autre type de spiraux connus par l'homme du métier, mais il est préférable d'utiliser, dans la forme d'exécution préférée du mouvement selon la présente invention, deux voire en général un nombre pair de spiraux plats simples, ceci du fait que ceux-ci permettent d'obtenir quasiment le même résultat de performance en termes de précision de marche du mouvement que l'utilisation de spiraux de type Breguet, voire un meilleur résultat si la courbe Breguet du spiral n'est pas parfaitement maîtrisée. Le mouvement selon la présente invention utilisant deux balanciers et deux spiraux permet alors d'optimiser la précision de l'oscillation du balancier sans pour autant nécessiter une complexité ou un volume trop élevé du dispositif, ce qui permet de réaliser la présente invention à des coûts de production relativement modérés.On the one hand, the running precision of a mechanical movement incorporating such a regulating member is improved by the fact that the inertia of the balance has been approximately doubled without increasing the diameter of the device. Likewise, the precision of the pendulum's oscillation period can significantly be improved when two balance springs are used, in particular when using flat balance springs. The latter could be replaced by hairsprings of the Breguet type or any other type of hairsprings known to those skilled in the art, but it is preferable to use, in the preferred embodiment of the movement according to the present invention, two or even generally an even number of simple flat balance springs, this because they make it possible to obtain almost the same performance result in terms of movement accuracy of the movement as the use of Breguet type balance springs, or even a better result if the Breguet curve of the balance spring is not perfectly controlled. The movement according to the present invention using two pendulums and two hairsprings then makes it possible to optimize the precision of the oscillation of the pendulum without requiring too high a complexity or a volume of the device, which makes it possible to carry out the present invention at costs. relatively moderate production.

D'autre part, grâce notamment à la présence de deux balanciers 2.1, 2.2 montés sur les extrémités respectives de l'axe 4 du dispositif, un tel organe régulateur est idéalement adapté à mettre en valeur techniquement et esthétiquement le mouvement d'une montre mécanique. En effet, la montre mécanique peut-être équipée d'une boîte de montre comportant, sur ses deux côtés, c'est-à-dire côté cadran ainsi que côté fond de la montre, des fenêtres transparentes à travers lesquelles le mouvement mécanique et en particulier l'oscillation du balancier peut-être observé. Le mouvement selon la présente invention disposant de deux balanciers aux extrémités 4.1, 4.2 respectives de l'axe 4, l'oscillation d'au moins un des balanciers 2.1, 2.2 battant en synchrone peut alors être observée de manière optimale à travers une des fenêtres correspondantes côté cadran ou côté fond de la boîte de montre, sans pour autant que le balancier que l'observateur a décidé d'admirer soit caché par d'autres pièces du mouvement mécanique.On the other hand, thanks in particular to the presence of two pendulums 2.1, 2.2 mounted on the respective ends of the axis 4 of the device, such a regulating member is ideally suited to enhance technically and aesthetically the movement of a mechanical watch. . Indeed, the mechanical watch may be equipped with a watch case comprising, on its two sides, that is to say on the dial side as well as on the back side of the watch, transparent windows through which the mechanical movement and in particular the oscillation of the pendulum can be observed. The movement according to the present invention having two pendulums at the respective ends 4.1, 4.2 of the axis 4, the oscillation of at least one of the pendulums 2.1, 2.2 beating in synchronism can then be observed optimally through one of the windows corresponding side dial or back side of the watch case, without the pendulum that the observer has decided to admire is hidden by other parts of the mechanical movement.

De plus, en cas d'utilisation de deux spiraux correspondant aux deux balanciers et agencés respectivement sur ces derniers, les opérations de contrôle ou de réglages lors de la production voire du service client sont grandement facilités pour un organe régulateur selon la présente invention par rapport aux dispositifs de l'art antérieur. En effet, dans les dispositifs connus utilisant deux spiraux, ces derniers étaient souvent superposés l'un au-dessus de l'autre, ce qui engendre une difficulté de vision ne permettant, pour le régleur de la montre, que très difficilement de distinguer entre les deux spiraux et ainsi de réaliser leur mise en marche que dans des conditions assez désavantageuses. A l'encontre, la présente invention propose, grâce à l'utilisation de deux balanciers 2.1, 2.2, de séparer par une distance axiale relativement importante les deux spiraux 3.1, 3.2, ce qui permet au régleur de la montre de décemment réaliser les opérations de contrôle ou de réglage voire la mise en marche, ceci de manière quasiment traditionnelle du fait que les deux spiraux peuvent ainsi être considérés comme étant indépendants, le premier spiral 3.1 ne perturbant pas par superposition la mise en marche du deuxième spiral 3.2.In addition, in the case of the use of two hairsprings corresponding to the two pendulums and arranged respectively on the latter, the control or adjustment operations during production or even customer service are greatly facilitated for a regulating member according to the present invention compared to the devices of the prior art. In fact, in the known devices using two hairsprings, the latter were often superimposed one above the other, which creates a difficulty of vision which makes it very difficult for the watch adjuster to distinguish between the two hairsprings and thus achieve their starting only under fairly disadvantageous conditions. On the contrary, the present invention proposes, thanks to the use of two pendulums 2.1, 2.2, to separate the two hairsprings 3.1, 3.2 by a relatively large axial distance, which allows the watch adjuster to decently carry out the operations control or adjustment or even the start-up, this in an almost traditional way because the two hairsprings can thus be considered as being independent, the first hairspring 3.1 not disturbing the start-up of the second hairspring 3.2 by superposition.

Il reste à constater qu'un organe régulateur 1 d'un mouvement selon la présente invention pourrait également, dans une constellation non illustrée aux figures, comprendre plus de deux balanciers fixés sur le même axe 4, par exemple un troisième balancier fixé sur l'axe 4 desdits premier balancier 2.1 et deuxième balancier 2.2 et arrangé entre ces derniers. Par ailleurs, un tel organe régulateur 1 comprend également, de manière générale, un nombre pair de spiraux montés chacun sur un desdits balanciers, par exemple un spiral fixé sur le premier respectivement deuxième balancier et deux spiraux montés de chaque côté dudit troisième balancier, ou quatre balanciers avec chacun un spiral correspondant. Les balanciers, qu'il y en ait deux ou plusieurs, peuvent aussi avoir un diamètre, une hauteur, et/ou une forme différents, ceci dans la limite de l'espace disponible voire d'autres contraintes techniques et selon l'esthétique souhaitée. Il est encore à noter que le spiral voire les spiraux de l'organe régulateur d'un mouvement selon la présente invention sont montés de manière conventionnelle au balancier et aux ponts de balancier par l'intermédiaire d'une virole et d'un piton.It remains to be seen that a regulating member 1 of a movement according to the present invention could also, in a constellation not illustrated in the figures, comprise more than two pendulums fixed on the same axis 4, for example a third pendulum fixed on the axis 4 of said first balance 2.1 and second balance 2.2 and arranged between the latter. Furthermore, such a regulating member 1 also generally comprises an even number of hairsprings each mounted on one of said pendulums, for example a hairspring fixed to the first second pendulum respectively and two hairsprings mounted on each side of said third pendulum, or four pendulums each with a corresponding hairspring. The pendulums, whether there are two or more, can also have a different diameter, height, and / or shape, this within the limit of the space available or even other technical constraints and according to the desired aesthetic . He is still it should be noted that the hairspring or even the hairsprings of the regulating member of a movement according to the present invention are mounted in a conventional manner to the pendulum and to the pendulum bridges by means of a ferrule and a stud.

L'organe régulateur d'un mouvement selon la présente invention peut coopérer de manière conventionnelle avec les autres parties du mouvement mécanique de la montre, à savoir avec le moteur, le rouage et l'échappement du mouvement. L'échappement d'un mouvement de montre selon la présente invention est arrangé au moins partiellement entre lesdits premier balancier 2.1 et deuxième balancier 2.2 de l'organe régulateur 1. Ainsi, une pièce d'horlogerie équipée d'un tel mouvement mécanique forme également l'objet de la présente invention, notamment en cas d'une telle disposition spécifique de l'échappement.The regulating member of a movement according to the present invention can cooperate in a conventional manner with the other parts of the mechanical movement of the watch, namely with the engine, the train and the escapement of the movement. The escapement of a watch movement according to the present invention is arranged at least partially between said first balance 2.1 and second balance 2.2 of the regulating member 1. Thus, a timepiece equipped with such a mechanical movement also forms the object of the present invention, in particular in the event of such a specific arrangement of the exhaust.

Au vu de la description détaillée figurant ci-dessus, il est clair que la présente invention propose un mouvement pour une pièce d'horlogerie mécanique dont la précision de marche se trouve améliorée sans trop augmenter la complexité technique ou les coûts de production et qui est idéalement adapté à être mis en valeur visuellement à travers des fenêtres se trouvant des deux côtés de la boîte de montre, contribuant ainsi de manière importante à l'esthétique de la pièce d'horlogerie.In view of the detailed description given above, it is clear that the present invention provides a movement for a mechanical timepiece whose running precision is improved without greatly increasing the technical complexity or the production costs and which is ideally suited to be visually enhanced through windows on both sides of the watch case, thus contributing significantly to the aesthetics of the timepiece.

Claims (8)

  1. Watch movement for mechanical watch piece, the movement comprising a motor, a gearing, an escapement and a regulating organ (1), wherein the gearing transmits the driving power coming from the motor to said escapement and said escapement is cooperating with said regulating organ (1) so as to maintain the oscillations of the regulating organ (1) which comprises a first balance (2.1) and a first spiral (3.1), said first balance (2.1) being mounted on an axle (4), the regulating organ (1) comprising at least a second balance (2.2) mounted on the axle (4) of said first balance (2.1) and at least a second spiral (3.2) arranged on said at least second balance (2.2), wherein the escapement is arranged at least partially between said first balance (2.1) and said second balance (2.2) of the regulating organ.
  2. Movement according to the previous claim, characterized by the fact that said first balance (2.1) and said second balance (2.2) are each arranged on an end of the axle (4) of said regulating organ (1).
  3. Movement according to the previous claim, characterized by the fact that the first spiral (3.1) and the second spiral (3.2) are arranged on the side turned toward the outside of said first balance (2.1) and of said second balance (2.2) of the regulating organ (1), respectively.
  4. Movement according to one of the previous claims, characterized by the fact that the spirals (3.1, 3.2) are flat spirals.
  5. Movement according to one of the previous claims 1 to 3, characterized by the fact that the spirals (3.1, 3.2) are Breguet spirals.
  6. Movement according to one of the previous claims, characterized by the fact that it comprises a third balance mounted on the axle (4) of said first balance (2.1) and of said second balance (2.2) and arranged between these latter.
  7. Movement according to one of the previous claims, characterized by the fact that it comprises an even number of spirals (3.1, 3.2), each spiral being mounted on one of the balances (2.1, 2.2).
  8. Mechanical watch piece, in particular a mechanical wrist watch, characterized by the fact that it comprises a watch movement according to one of the previous claims.
EP10178111.0A 2009-10-26 2010-09-21 Mechanical movement with regulating organ comprising at least two balances Active EP2315082B8 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH01630/09A CH702062B1 (en) 2009-10-26 2009-10-26 Regulating organ comprising at least two pendulums, a watch movement as well as a timepiece comprising such an organ.

Publications (4)

Publication Number Publication Date
EP2315082A2 EP2315082A2 (en) 2011-04-27
EP2315082A3 EP2315082A3 (en) 2016-12-07
EP2315082B1 true EP2315082B1 (en) 2020-05-27
EP2315082B8 EP2315082B8 (en) 2020-08-12

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EP10178111.0A Active EP2315082B8 (en) 2009-10-26 2010-09-21 Mechanical movement with regulating organ comprising at least two balances

Country Status (7)

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US (1) US8668378B2 (en)
EP (1) EP2315082B8 (en)
JP (1) JP5670151B2 (en)
CN (1) CN102053553B (en)
CH (1) CH702062B1 (en)
ES (1) ES2801002T3 (en)
HK (1) HK1154291A1 (en)

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Publication number Publication date
ES2801002T3 (en) 2021-01-07
JP2011089991A (en) 2011-05-06
EP2315082B8 (en) 2020-08-12
CN102053553A (en) 2011-05-11
EP2315082A3 (en) 2016-12-07
HK1154291A1 (en) 2012-04-13
CN102053553B (en) 2015-04-01
CH702062B1 (en) 2022-01-31
EP2315082A2 (en) 2011-04-27
JP5670151B2 (en) 2015-02-18
US8668378B2 (en) 2014-03-11
US20110096636A1 (en) 2011-04-28
CH702062A1 (en) 2011-04-29

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