EP3232275B1 - Winding mechanism for a timepiece comprising at least two barrels, and timepiece comprising such a mechanism - Google Patents

Winding mechanism for a timepiece comprising at least two barrels, and timepiece comprising such a mechanism Download PDF

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Publication number
EP3232275B1
EP3232275B1 EP17162108.9A EP17162108A EP3232275B1 EP 3232275 B1 EP3232275 B1 EP 3232275B1 EP 17162108 A EP17162108 A EP 17162108A EP 3232275 B1 EP3232275 B1 EP 3232275B1
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EP
European Patent Office
Prior art keywords
winding
drive member
sun gear
barrel
timepiece
Prior art date
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EP17162108.9A
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German (de)
French (fr)
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EP3232275A1 (en
Inventor
Nicolas Stalder
Willy Meier
Eric MAGNIN-FEYSOT
Kurt Straumann
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Van Cleef and Arpels SA
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Van Cleef and Arpels SA
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Publication of EP3232275A1 publication Critical patent/EP3232275A1/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
    • G04B3/00—Normal winding of clockworks by hand or mechanically; Winding up several mainsprings or driving weights simultaneously
    • G04B3/008—Winding up several mainsprings or driving weights simultaneously
    • 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
    • G04B21/00—Indicating the time by acoustic means
    • G04B21/02—Regular striking mechanisms giving the full hour, half hour or quarter hour
    • G04B21/12—Reiterating watches or clocks
    • G—PHYSICS
    • G04—HOROLOGY
    • G04F—TIME-INTERVAL MEASURING
    • G04F7/00—Apparatus for measuring unknown time intervals by non-electric means
    • G04F7/04—Apparatus for measuring unknown time intervals by non-electric means using a mechanical oscillator
    • G04F7/08—Watches or clocks with stop devices, e.g. chronograph
    • G04F7/0866—Special arrangements
    • G04F7/0895—Special arrangements with a separate barrel for the chronograph functions

Definitions

  • the present invention relates to an automatic and / or manual winding mechanism for a timepiece comprising at least two barrels supplying independent mechanisms such as the finishing gear and the time indication, a counter mechanism or chronometer or any another horological complication or animation mechanism.
  • the US patent US 1,245,245 A discloses an alarm clock comprising a first drive member for the clock and a second drive member for waking as well as manual winding means for said motor members.
  • the winding means are arranged so that the user can choose to go up either the drive member of the alarm clock only, or the two motor members simultaneously.
  • German patent DE 317 294 C describes a timepiece comprising a first mechanism and a second mechanism fed respectively by a first barrel and a second barrel and electrical winding means which raises the two barrels together.
  • a differential mechanism is arranged between the axes of the first and second barrels so that the energy stored in one of the two barrels can be transmitted to that of the first and second mechanisms that needs it most.
  • the object of the present invention is to be able to go up at least two barrels supplying independent mechanisms using a single winding mechanism and / or independent and this so as to advantage the arming of one of the barrels.
  • the present invention relates to a winding mechanism for a timepiece whose movement includes automatic and / or manual winding means providing a winding torque to at least a first motor member and a second motor member feeding each of independent mechanisms distinguished by the features set forth in claim 1.
  • the invention also relates to a timepiece equipped with such a winding mechanism.
  • the first embodiment illustrated in figures 1 , 3 and 4 is an automatic winding mechanism for a timepiece comprising a movement having at least two driving members, each comprising at least one barrel, supplying independent mechanisms, that is to say that each motor organ feeds exclusively its own mechanism without interaction with the mechanism driven by the other motor member.
  • These independent mechanisms may be the driving mechanism of the movement, a stopwatch mechanism of the movement or a mechanism of a complication of the movement or an animation mechanism that includes the timepiece.
  • the winding mechanism is automatic and includes winding means in the form of a winding mass 1, pivoted on a fixed part of the movement of the timepiece, comprising a drive wheel 2 in engagement with a sliding pinion 3, pivoted on a fixed part of the movement, and being able to move from an active position, in engagement with the wheel 4.1 of a winding device 4 to an inactive position , disengaged from the wheel 4.1 of the winding device 4 according to the direction of rotation of the automatic winding mass 1.
  • winding means in the form of a winding mass 1, pivoted on a fixed part of the movement of the timepiece, comprising a drive wheel 2 in engagement with a sliding pinion 3, pivoted on a fixed part of the movement, and being able to move from an active position, in engagement with the wheel 4.1 of a winding device 4 to an inactive position , disengaged from the wheel 4.1 of the winding device 4 according to the direction of rotation of the automatic winding mass 1.
  • the first drive member here a first cylinder 5, which is preferably the engine cylinder of the movement of the timepiece, comprises an axis 5.1, a cage 5.2 pivoted on the axis 5.1 and having on its periphery a suitable gearing 5.3 to drive the drive train of the movement and a cover 5.4.
  • a motor spring is fixed at its inner end to the axis 5.1 of the first cylinder 5 and at its outer end, possibly via a sliding flange, to the cage 5.2 of the first cylinder 5.
  • This first barrel 5 further comprises a ratchet 5.5 integral with its barrel axis 5.1 and whose teeth in wolf teeth cooperates with a non-illustrated pawl pivoted on the lid 5.4 of the barrel to allow a relative rotation of the axis 5.1 of the barrel 5 with respect to its cage 5.2 and its cover 5.4 that in the direction of winding of the mainspring.
  • the axis 5.1 of this first cylinder 5 is integral with a first winding pinion 6.
  • This automatic winding mechanism also comprises a distribution differential 7 illustrated in FIGS. Figures 3 and 4 which comprises an epicyclic gear train.
  • this differential comprises a first sun gear 7.1 pivoted on the shaft 5.1 of the first cylinder 5 having a gearing 7.2 in engagement with the pinion (not shown) of the winding device 4.
  • This first sun gear 7.1 comprises spokes 7.3, 7.4 serving as a carrier.
  • This distribution differential further comprises two satellites 7.5, 7.6 pivoted on the diametrically opposed radii 7.3, 7.4 respectively. These satellites 7.5, 7.6 meshing with the first winding pinion 6 of the first barrel 5 at two diametrically opposite points.
  • the distribution differential 7 further comprises a second sun gear 7.7 pivoted on the axis 5.1 of the first cylinder 5 having an internal toothing 7.8 meshing with at least one and preferably two satellites 7.5, 7.6.
  • the second sun gear 7.7 still has an external toothing 7.9.
  • the distribution differential 7 can be positioned at another place, for example next to the first cylinder 5.
  • the planetary 7.1, 7.7 pivot about an axis of the distribution differential which is parallel to the 5.1 shaft of the first cylinder, and the first winding pinion 6 is kinematically linked to an output wheel secured to the axis of the distribution differential.
  • the second motor member here in the form of a second barrel 9, comprises a cage 9.1, provided with an external toothing 9.2 and an axis 9.3.
  • This axis 9.3 is connected to the cage 9.1 by a motor spring.
  • the axis 9.3 of this second barrel 9 includes a ratchet (not shown) in a conventional manner and a second winding pinion (not shown).
  • the ratchet is subjected to the action of a pawl (not shown) allowing the relative rotation of the cage 9.1 with respect to the axis 9.3 of the second barrel that in the direction of the winding of the spring of the second barrel 9.
  • external toothing 9.2 of this second barrel 9 is engaged with a drive train of an independent mechanism, a complication or an animation of the timepiece.
  • the external toothing 7.9 of the second sun gear 7.7 of the distribution differential 7 is directly connected by a kinematic connection to the second winding pinion of the second barrel 9.
  • a kinematic connection without differential comprises in the illustrated example a wheel 10 engaged with the outer toothing 7.9 of the second sun gear 7.7 of the distribution differential, a first mobile 11, a second wheel 12 and a third wheel 13 engaged with the second winding pinion second barrel 9.
  • the second embodiment of the winding mechanism illustrated in FIG. figure 2 is a manual winding mechanism.
  • the winding means comprise a winding stem 20 which actuates, when it is in the axial position of winding, a winding crown 21 via a kinematic connection 22, 23, 24.
  • the winding crown 21 is engaged with the external toothing 7.2 of the first sun gear 7.1 of the distribution differential 7 mounted on the axis 5.1 of the first cylinder 5.
  • the automatic winding mass 1 and its kinematic connection 2, 3, 4 is replaced by the winding stem and its kinematic connection 21, 22, 23, 24.
  • the winding mechanism could be automatic and manual, the first sun gear 7.1 of the distribution differential 7 mounted on the first cylinder 5 being kinematically connected on the one hand to the automatic winding mass 1 and on the other hand to the winding crown 20.
  • a first torque is transmitted (directly or indirectly) to the axis 5.1 of the first cylinder 5 through the distribution differential 7, in the example illustrated by means of the satellites 7.5, 7.6 and the first winding pinion 6 and drives the axis 5.1 of the first cylinder 5 at a first speed of rotation.
  • a second pair is transmitted to the axis of the second cylinder by the second sun gear 7.7 of the distribution differential 7 and the kinematic connection 10, 11, 12, 13 thereof to the axis 9.1 of the second cylinder 9 and causes the axis 9.1 of the second barrel 9 at a second speed of rotation, generally lower than the first speed.
  • the distribution differential 7 receives a winding torque of the winding means and distributes this torque unequally between the first motor member and the second motor unit.
  • the distribution differential can be adapted to distribute the winding torque to more than two motor members.
  • the first barrel 5 for driving the watch movement relative to the second barrel 9 for driving a secondary mechanism of the timepiece, for example an animation mechanism.

Description

La présente invention se rapporte à un mécanisme de remontage automatique et/ou manuel pour une pièce d'horlogerie comportant au moins deux barillets alimentant des mécanismes indépendants tels que le rouage de finissage et l'indication horaire, un mécanisme de compteur ou chronomètre ou toute autre complication horlogère ou mécanisme d'animation.The present invention relates to an automatic and / or manual winding mechanism for a timepiece comprising at least two barrels supplying independent mechanisms such as the finishing gear and the time indication, a counter mechanism or chronometer or any another horological complication or animation mechanism.

Le brevet américain US 1 245 245 A décrit une horloge-réveil comprenant un premier organe moteur pour l'horloge et un second organe moteur pour le réveil ainsi que des moyens de remontage manuels pour lesdits organes moteur. Les moyens de remontage sont agencés pour que l'utilisateur puisse choisir de remonter soit l'organe moteur du réveil uniquement, soit les deux organes moteur simultanément.The US patent US 1,245,245 A discloses an alarm clock comprising a first drive member for the clock and a second drive member for waking as well as manual winding means for said motor members. The winding means are arranged so that the user can choose to go up either the drive member of the alarm clock only, or the two motor members simultaneously.

Le brevet allemand DE 317 294 C décrit une pièce d'horlogerie comprenant un premier mécanisme et un second mécanisme alimentés respectivement par un premier barillet et un second barillet ainsi que des moyens de remontage électriques qui remonte les deux barillets ensemble. Un mécanisme différentiel est agencé entre les axes des premier et second barillets de sorte que l'énergie stockée dans un des deux barillets peut être transmise à celui des premier et second mécanismes qui en a le plus besoin.The German patent DE 317 294 C describes a timepiece comprising a first mechanism and a second mechanism fed respectively by a first barrel and a second barrel and electrical winding means which raises the two barrels together. A differential mechanism is arranged between the axes of the first and second barrels so that the energy stored in one of the two barrels can be transmitted to that of the first and second mechanisms that needs it most.

Le but de la présente invention est de pouvoir remonter au moins deux barillets alimentant des mécanismes indépendants à l'aide d'un seul mécanisme de remontage automatique et/ou indépendant et ceci de manière à pouvoir avantager l'armage d'un des barillets.The object of the present invention is to be able to go up at least two barrels supplying independent mechanisms using a single winding mechanism and / or independent and this so as to advantage the arming of one of the barrels.

La présente invention a pour objet un mécanisme de remontage pour pièce d'horlogerie dont le mouvement comporte des moyens de remontage automatiques et/ou manuels fournissant un couple de remontage à au moins un premier organe moteur et un second organe moteur alimentant chacun des mécanismes indépendants qui se distingue par les caractéristiques énoncées à la revendication 1.The present invention relates to a winding mechanism for a timepiece whose movement includes automatic and / or manual winding means providing a winding torque to at least a first motor member and a second motor member feeding each of independent mechanisms distinguished by the features set forth in claim 1.

L'invention a également pour objet une pièce d'horlogerie équipée d'un tel mécanisme de remontage.The invention also relates to a timepiece equipped with such a winding mechanism.

Le dessin annexé illustre schématiquement et à titre d'exemple deux formes d'exécution du mécanisme de remontage pour pièce d'horlogerie selon l'invention.

  • La figure 1 est une vue en perspective d'un mécanisme de remontage automatique de deux barillets indépendants selon une première forme d'exécution.
  • La figure 2 est une vue en perspective d'un mécanisme de remontage manuel de deux barillets indépendants selon une seconde forme d'exécution.
  • La figure 3 illustre en perspective et à plus grande échelle un différentiel de distribution et le pignon de remontage d'un premier barillet.
  • La figure 4 est une coupe suivant la ligne A-A de la figure 3.
  • La figure 5 illustre les courbes de recharge de deux barillets en fonction du temps obtenues avec un mécanisme de remontage selon l'invention.
The attached drawing illustrates schematically and by way of example two embodiments of the winding mechanism for a timepiece according to the invention.
  • The figure 1 is a perspective view of an automatic winding mechanism of two independent barrels according to a first embodiment.
  • The figure 2 is a perspective view of a manual winding mechanism of two independent barrels according to a second embodiment.
  • The figure 3 illustrates in perspective and on a larger scale a distribution differential and the winding pinion of a first cylinder.
  • The figure 4 is a section along line AA of the figure 3 .
  • The figure 5 illustrates the charging curves of two barrels as a function of time obtained with a winding mechanism according to the invention.

La première forme d'exécution illustrée aux figures 1, 3 et 4 est un mécanisme de remontage automatique pour une pièce d'horlogerie comportant un mouvement présentant au moins deux organes moteurs, chacun comprenant au moins un barillet, alimentant des mécanismes indépendants, c'est-à-dire que chaque organe moteur alimente exclusivement son propre mécanisme sans interaction avec le mécanisme entraîné par l'autre organe moteur. Ces mécanismes indépendants peuvent être le rouage moteur du mouvement, un mécanisme de chronomètre du mouvement ou un mécanisme d'une complication du mouvement ou un mécanisme d'animation que comporte la pièce d'horlogerie.The first embodiment illustrated in figures 1 , 3 and 4 is an automatic winding mechanism for a timepiece comprising a movement having at least two driving members, each comprising at least one barrel, supplying independent mechanisms, that is to say that each motor organ feeds exclusively its own mechanism without interaction with the mechanism driven by the other motor member. These independent mechanisms may be the driving mechanism of the movement, a stopwatch mechanism of the movement or a mechanism of a complication of the movement or an animation mechanism that includes the timepiece.

Dans cette première forme d'exécution, le mécanisme de remontage est automatique et comprend des moyens de remontage en forme d'une masse de remontage 1, pivotée sur une partie fixe du mouvement de la pièce d'horlogerie, comportant une roue d'entraînement 2 en prise avec un pignon baladeur 3, pivoté sur une partie fixe du mouvement, et pouvant se déplacer d'une position active, en prise avec la roue 4.1 d'un mobile de remontage 4 à une position inactive, débrayée, de la roue 4.1 du mobile de remontage 4 suivant le sens de rotation de la masse de remontage automatique 1.In this first embodiment, the winding mechanism is automatic and includes winding means in the form of a winding mass 1, pivoted on a fixed part of the movement of the timepiece, comprising a drive wheel 2 in engagement with a sliding pinion 3, pivoted on a fixed part of the movement, and being able to move from an active position, in engagement with the wheel 4.1 of a winding device 4 to an inactive position , disengaged from the wheel 4.1 of the winding device 4 according to the direction of rotation of the automatic winding mass 1.

Le premier organe moteur, ici un premier barillet 5, qui est de préférence le barillet moteur du mouvement de la pièce d'horlogerie, comporte un axe 5.1, une cage 5.2 pivotée sur l'axe 5.1 et présentant sur sa périphérie une denture 5.3 apte à entraîner le rouage moteur du mouvement et un couvercle 5.4. Un ressort moteur, non illustré, est fixé par son extrémité intérieure à l'axe 5.1 du premier barillet 5 et par son extrémité extérieure, éventuellement par l'intermédiaire d'une bride glissante, à la cage 5.2 de ce premier barillet 5.The first drive member, here a first cylinder 5, which is preferably the engine cylinder of the movement of the timepiece, comprises an axis 5.1, a cage 5.2 pivoted on the axis 5.1 and having on its periphery a suitable gearing 5.3 to drive the drive train of the movement and a cover 5.4. A motor spring, not shown, is fixed at its inner end to the axis 5.1 of the first cylinder 5 and at its outer end, possibly via a sliding flange, to the cage 5.2 of the first cylinder 5.

Ce premier barillet 5 comporte encore un rochet 5.5 solidaire de son axe de barillet 5.1 et dont la denture en dent de loup coopère avec un cliquet non illustré pivoté sur le couvercle 5.4 du barillet pour ne permettre une rotation relative de l'axe 5.1 du barillet 5 par rapport à sa cage 5.2 et son couvercle 5.4 que dans le sens de remontage du ressort moteur.This first barrel 5 further comprises a ratchet 5.5 integral with its barrel axis 5.1 and whose teeth in wolf teeth cooperates with a non-illustrated pawl pivoted on the lid 5.4 of the barrel to allow a relative rotation of the axis 5.1 of the barrel 5 with respect to its cage 5.2 and its cover 5.4 that in the direction of winding of the mainspring.

L'axe 5.1 de ce premier barillet 5 est solidaire d'un premier pignon de remontage 6.The axis 5.1 of this first cylinder 5 is integral with a first winding pinion 6.

Ce mécanisme de remontage automatique comporte encore un différentiel de distribution 7 illustré aux figures 3 et 4 qui comprend un train d'engrenage épicycloïdal. Dans la forme d'exécution illustrée, ce différentiel comprend un premier planétaire 7.1 pivoté sur l'arbre 5.1 du premier barillet 5 présentant une denture 7.2 en prise avec le pignon (non illustré) du mobile de remontage 4. Ce premier planétaire 7.1 comporte des rayons 7.3, 7.4 servant de porte-satellite. Ce différentiel de distribution comporte encore deux satellites 7.5, 7.6 pivotés sur les rayons diamétralement opposés 7.3, 7.4 respectivement. Ces satellites 7.5, 7.6 engrènent avec le premier pignon de remontage 6 du premier barillet 5 en deux points diamétralement opposés.This automatic winding mechanism also comprises a distribution differential 7 illustrated in FIGS. Figures 3 and 4 which comprises an epicyclic gear train. In the illustrated embodiment, this differential comprises a first sun gear 7.1 pivoted on the shaft 5.1 of the first cylinder 5 having a gearing 7.2 in engagement with the pinion (not shown) of the winding device 4. This first sun gear 7.1 comprises spokes 7.3, 7.4 serving as a carrier. This distribution differential further comprises two satellites 7.5, 7.6 pivoted on the diametrically opposed radii 7.3, 7.4 respectively. These satellites 7.5, 7.6 meshing with the first winding pinion 6 of the first barrel 5 at two diametrically opposite points.

Le différentiel de distribution 7 comporte encore un second planétaire 7.7 pivoté sur l'axe 5.1 du premier barillet 5 comportant une denture intérieure 7.8 en prise avec au moins un et de préférence deux satellites 7.5, 7.6. Le second planétaire 7.7 comporte encore une denture extérieure 7.9.The distribution differential 7 further comprises a second sun gear 7.7 pivoted on the axis 5.1 of the first cylinder 5 having an internal toothing 7.8 meshing with at least one and preferably two satellites 7.5, 7.6. The second sun gear 7.7 still has an external toothing 7.9.

Selon des variantes, le différentiel de distribution 7 peut être positionné à un autre endroit, par exemple à côté du premier barillet 5. Dans ce cas, les planétaires 7.1, 7.7 pivotent autour d'un axe du différentiel de distribution qui est parallèle à l'arbre 5.1 du premier barillet, et le premier pignon de remontage 6 est lié cinématiquement à une roue de sortie solidaire de l'axe du différentiel de distribution. Une telle variante permet de réduire l'épaisseur du mécanisme de remontage.According to variants, the distribution differential 7 can be positioned at another place, for example next to the first cylinder 5. In this case, the planetary 7.1, 7.7 pivot about an axis of the distribution differential which is parallel to the 5.1 shaft of the first cylinder, and the first winding pinion 6 is kinematically linked to an output wheel secured to the axis of the distribution differential. Such a variant makes it possible to reduce the thickness of the winding mechanism.

Le second organe moteur, ici en forme d'un second barillet 9, comporte une cage 9.1, munie d'une denture extérieure 9.2 et un axe 9.3. Cet axe 9.3 est relié à la cage 9.1 par un ressort moteur. L'axe 9.3 de ce second barillet 9 comporte un rochet (non illustré) de façon classique et un second pignon de remontage (non illustré). Le rochet est soumis à l'action d'un cliquet (non illustré) ne permettant la rotation relative de la cage 9.1 par rapport à l'axe 9.3 du second barillet que dans le sens du remontage du ressort de ce second barillet 9. La denture extérieure 9.2 de ce second barillet 9 est en prise avec un rouage d'entraînement d'un mécanisme indépendant, une complication ou une animation de la pièce d'horlogerie.The second motor member, here in the form of a second barrel 9, comprises a cage 9.1, provided with an external toothing 9.2 and an axis 9.3. This axis 9.3 is connected to the cage 9.1 by a motor spring. The axis 9.3 of this second barrel 9 includes a ratchet (not shown) in a conventional manner and a second winding pinion (not shown). The ratchet is subjected to the action of a pawl (not shown) allowing the relative rotation of the cage 9.1 with respect to the axis 9.3 of the second barrel that in the direction of the winding of the spring of the second barrel 9. external toothing 9.2 of this second barrel 9 is engaged with a drive train of an independent mechanism, a complication or an animation of the timepiece.

La denture externe 7.9 du second planétaire 7.7 du différentiel de distribution 7 est reliée directement par une liaison cinématique au second pignon de remontage du second barillet 9. On entend par directement, comme illustré à titre d'exemple à la figure 1 ou 2, une liaison cinématique sans différentiel. Cette liaison cinématique comporte dans l'exemple illustré une roue 10 en prise avec la denture extérieure 7.9 du second planétaire 7.7 du différentiel de distribution, un premier mobile 11, une deuxième roue 12 et une troisième roue 13 en prise avec le second pignon de remontage du second barillet 9.The external toothing 7.9 of the second sun gear 7.7 of the distribution differential 7 is directly connected by a kinematic connection to the second winding pinion of the second barrel 9. By direct means, as illustrated by way of example at the figure 1 or 2 , a kinematic connection without differential. This kinematic connection comprises in the illustrated example a wheel 10 engaged with the outer toothing 7.9 of the second sun gear 7.7 of the distribution differential, a first mobile 11, a second wheel 12 and a third wheel 13 engaged with the second winding pinion second barrel 9.

La seconde forme d'exécution du mécanisme de remontage illustrée à la figure 2 est un mécanisme de remontage manuel.The second embodiment of the winding mechanism illustrated in FIG. figure 2 is a manual winding mechanism.

Dans cette forme d'exécution, les moyens de remontage comprennent une tige de remontoir 20 qui actionne, lorsqu'elle est en position axiale de remontage, une couronne de remontage 21 par l'intermédiaire d'une liaison cinématique 22, 23, 24. La couronne de remontage 21 est en prise avec la denture extérieure 7.2 du premier planétaire 7.1 du différentiel de distribution 7 monté sur l'axe 5.1 du premier barillet 5.In this embodiment, the winding means comprise a winding stem 20 which actuates, when it is in the axial position of winding, a winding crown 21 via a kinematic connection 22, 23, 24. The winding crown 21 is engaged with the external toothing 7.2 of the first sun gear 7.1 of the distribution differential 7 mounted on the axis 5.1 of the first cylinder 5.

Dans cette forme d'exécution, la masse de remontage automatique 1 et sa liaison cinématique 2, 3, 4 est remplacée par la tige de remontoir et sa liaison cinématique 21, 22, 23, 24.In this embodiment, the automatic winding mass 1 and its kinematic connection 2, 3, 4 is replaced by the winding stem and its kinematic connection 21, 22, 23, 24.

Dans une variante, le mécanisme de remontage pourrait être automatique et manuel, le premier planétaire 7.1 du différentiel de distribution 7 monté sur le premier barillet 5 étant relié cinématiquement d'une part à la masse de remontage automatique 1 et d'autre part à la couronne de remontoir 20.In a variant, the winding mechanism could be automatic and manual, the first sun gear 7.1 of the distribution differential 7 mounted on the first cylinder 5 being kinematically connected on the one hand to the automatic winding mass 1 and on the other hand to the winding crown 20.

Lorsque le premier planétaire 7.1 du différentiel de distribution est entraîné en rotation, soit par la masse de remontage automatique 1, soit par la couronne de remontoir 20, un premier couple est transmis (directement ou indirectement) à l'axe 5.1 du premier barillet 5 par l'intermédiaire du différentiel de distribution 7, soit dans l'exemple illustré par l'intermédiaire des satellites 7.5, 7.6 et du premier pignon de remontage 6 et entraîne l'axe 5.1 du premier barillet 5 à une première vitesse de rotation. Un second couple est transmis à l'axe du second barillet par le second planétaire 7.7 du différentiel de distribution 7 et la liaison cinématique 10, 11, 12, 13 de celui-ci à l'axe 9.1 du second barillet 9 et entraîne l'axe 9.1 du second barillet 9 à une seconde vitesse de rotation, généralement plus faible que la première vitesse.When the first sun gear 7.1 of the distribution differential is rotated, either by the automatic winding mass 1 or by the winding crown 20, a first torque is transmitted (directly or indirectly) to the axis 5.1 of the first cylinder 5 through the distribution differential 7, in the example illustrated by means of the satellites 7.5, 7.6 and the first winding pinion 6 and drives the axis 5.1 of the first cylinder 5 at a first speed of rotation. A second pair is transmitted to the axis of the second cylinder by the second sun gear 7.7 of the distribution differential 7 and the kinematic connection 10, 11, 12, 13 thereof to the axis 9.1 of the second cylinder 9 and causes the axis 9.1 of the second barrel 9 at a second speed of rotation, generally lower than the first speed.

De façon plus générale, selon la présente invention le différentiel de distribution 7 reçoit un couple de remontage des moyens de remontage et distribue ce couple de manière non égale entre le premier organe moteur et le deuxième organe moteur. Selon des variantes, le différentiel de distribution peut être adapté pour distribuer le couple de remontage à plus de deux organes moteurs.More generally, according to the present invention the distribution differential 7 receives a winding torque of the winding means and distributes this torque unequally between the first motor member and the second motor unit. According to variants, the distribution differential can be adapted to distribute the winding torque to more than two motor members.

En jouant sur le couple et les vitesses de rotation de remontage des ressorts des deux barillets 5, 9 par le rapport d'engrenage de la liaison cinématique 10, 11, 12, 13, reliant le second planétaire 7.7 à l'axe 9.1 du second barillet, il est possible d'avantager l'armage d'un des barillets par rapport à l'autre comme cela est illustré à la figure 5 où la ligne pleine illustre la recharge du premier barillet 5 et la ligne en pointillés la recharge du second barillet 9 en fonction du temps.By adjusting the torque and the winding rotation speeds of the springs of the two barrels 5, 9 by the gear ratio of the kinematic link 10, 11, 12, 13, connecting the second sun gear 7.7 to the axis 9.1 of the second barrel, it is possible to benefit the arming of one of the barrels relative to the other as shown in FIG. figure 5 where the solid line illustrates the refill of the first barrel 5 and the dotted line the refill of the second barrel 9 as a function of time.

De préférence, on privilégiera le remontage du premier barillet 5 destiné à l'entraînement du mouvement horloger par rapport au second barillet 9 destiné à l'entraînement d'un mécanisme secondaire de la pièce d'horlogerie, par exemple un mécanisme d'animation.Preferably, it will be preferred to reassemble the first barrel 5 for driving the watch movement relative to the second barrel 9 for driving a secondary mechanism of the timepiece, for example an animation mechanism.

Claims (14)

  1. Winding mechanism for a timepiece, the movement of which comprises means for automatic and/or manual winding providing a winding torque to at least one first drive member (5) and one second drive member (9) supplying first and second independent mechanisms, characterised in that it comprises a distribution differential (7) receiving a winding torque from the winding means and distributing this torque unequally between the first drive member (5) and the second drive member (9).
  2. Mechanism as claimed in claim 1, characterised in that the distribution differential (7) comprises an epicyclic gear train (7.1, 7.2, 7.3. 7.4, 7.5, 7.6, 7.7, 7.8, 7.9).
  3. Mechanism as claimed in claim 2, characterised in that the distribution differential (7) comprises a first sun gear (7.1) pivoted on a shaft of the distribution differential, at least one planet gear (7.5, 7.6) pivoted on the first sun gear (7.1) meshing on the one hand with a output wheel fixedly attached to the shaft of the distribution differential and on the other hand with a second sun gear (7.7) pivoted on the shaft of the distribution differential, the first sun gear (7.1) being kinematically connected to the winding means, the output wheel being kinematically connected to the first drive member (5) and the second sun gear (7.7) being kinematically connected to the second drive member (9).
  4. Mechanism as claimed in claim 3, characterised in that a kinematic link (10, 11, 12, 13) directly connects a toothed arrangement (7.9) of the second sun gear (7.7) to the second drive member (9).
  5. Mechanism as claimed in claim 4, characterised in that each planet gear (7.5, 7.6) meshes with an inner toothed arrangement (7.8) of the second sun gear (7.7), and in that the kinematic link (10, 11, 12, 13) connects the toothed arrangement (7.9) of the second sun gear (7.7) to the second drive member (9).
  6. Mechanism as claimed in any one of claims 3 to 5, characterised in that the first drive member comprises a first barrel (5) and the second drive member comprises a second barrel (9), the output wheel being kinematically connected to a first winding pinion (6) fixedly attached to the staff of the first barrel (5), and the second sun gear (7.7) being kinematically connected to a second winding pinion fixedly attached to the staff (9.3) of the second barrel (9).
  7. Mechanism as claimed in claim 6, characterised in that the shaft of the differential is formed by the staff (5.1) of the first barrel (5), the output wheel of the distribution differential being the first winding pinion (6) of the first barrel (5).
  8. Mechanism as claimed in claim 6, characterised in that the shaft of the distribution differential is in parallel with the staff (5.1) of the first barrel (5).
  9. Mechanism as claimed in any one of claims 3 to 8, characterised in that the distribution differential (7) comprises two planet gears (7.5, 7.6).
  10. Mechanism as claimed in any one of claims 3 to 9, characterised in that the first sun gear (7.1) comprises an outer toothed arrangement (7.2).
  11. Mechanism as claimed in any one of claims 3 to 10, characterised in that the first sun gear (7.1) is kinematically connected to an automatic winding mass (1) of the movement.
  12. Mechanism as claimed in any one of claims 3 to 11, characterised in that the first sun gear (7.1) is kinematically connected to a winding stem (20) of the movement when the stem is in the winding position.
  13. Mechanism as claimed in any one of the preceding claims, characterised in that the first drive member (5) supplies a timepiece movement of the timepiece and the second drive member (9) supplies a secondary mechanism of the timepiece, the winding of the first drive member (5) being of a higher priority than the winding of the second drive member (9).
  14. Timepiece comprising means for manual and/or automatic winding, characterised in that it is fitted with a winding mechanism as claimed in any one of claims 1 to 13.
EP17162108.9A 2016-04-13 2017-03-21 Winding mechanism for a timepiece comprising at least two barrels, and timepiece comprising such a mechanism Active EP3232275B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH00481/16A CH712338A1 (en) 2016-04-13 2016-04-13 Winding mechanism for a timepiece comprising at least two barrels, and a timepiece comprising such a mechanism.

Publications (2)

Publication Number Publication Date
EP3232275A1 EP3232275A1 (en) 2017-10-18
EP3232275B1 true EP3232275B1 (en) 2019-02-20

Family

ID=55794824

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17162108.9A Active EP3232275B1 (en) 2016-04-13 2017-03-21 Winding mechanism for a timepiece comprising at least two barrels, and timepiece comprising such a mechanism

Country Status (2)

Country Link
EP (1) EP3232275B1 (en)
CH (1) CH712338A1 (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1245245A (en) * 1917-03-28 1917-11-06 Edward T Lewis Alarm-clock.
DE317294C (en) * 1918-08-08 1919-12-13 Paul Schröder WINDING DEVICE FOR WATCHES WITH MULTIPLE MOVEMENTS
DE542580C (en) * 1928-02-25 1932-01-26 Carl Doll Clock with electric winding

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
EP3232275A1 (en) 2017-10-18
CH712338A1 (en) 2017-10-13

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