EP3376309B1 - Winding mechanism of a timepiece - Google Patents

Winding mechanism of a timepiece Download PDF

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Publication number
EP3376309B1
EP3376309B1 EP17161690.7A EP17161690A EP3376309B1 EP 3376309 B1 EP3376309 B1 EP 3376309B1 EP 17161690 A EP17161690 A EP 17161690A EP 3376309 B1 EP3376309 B1 EP 3376309B1
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EP
European Patent Office
Prior art keywords
winding
pinion
order
power accumulator
power
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP17161690.7A
Other languages
German (de)
French (fr)
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EP3376309A1 (en
Inventor
Bernat Monferrer
Edmond Capt
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Montres Jaquet Droz SA
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Montres Jaquet Droz 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.)
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Publication date
Application filed by Montres Jaquet Droz SA filed Critical Montres Jaquet Droz SA
Priority to EP17161690.7A priority Critical patent/EP3376309B1/en
Priority to JP2018045294A priority patent/JP6706639B2/en
Priority to US15/919,258 priority patent/US10802445B2/en
Priority to RU2018109333A priority patent/RU2760425C2/en
Priority to CN201810218496.8A priority patent/CN108628142B/en
Publication of EP3376309A1 publication Critical patent/EP3376309A1/en
Application granted granted Critical
Publication of EP3376309B1 publication Critical patent/EP3376309B1/en
Active legal-status Critical Current
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Classifications

    • 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
    • G04B23/00—Arrangements producing acoustic signals at preselected times
    • G04B23/02—Alarm clocks
    • G04B23/023—Driving, e.g. by springs or common drive with the clockwork; gears; escapements
    • 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
    • G04B27/00—Mechanical devices for setting the time indicating means
    • G04B27/02—Mechanical devices for setting the time indicating means by making use of the winding means
    • G04B27/04—Mechanical devices for setting the time indicating means by making use of the winding means with clutch wheel
    • 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
    • G04B13/00—Gearwork
    • 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
    • G04B27/00—Mechanical devices for setting the time indicating means
    • G04B27/02—Mechanical devices for setting the time indicating means by making use of the winding means
    • G04B27/026—Mechanical devices for setting the time indicating means by making use of the winding means for several clockworks or pairs of hands and/or supplementary functions
    • 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
    • G04B3/006—Mechanical winding up; winding up with special equipment
    • 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
    • G04B37/00—Cases
    • G04B37/06—Forming the passage for the winding stem through the case; Divided winding stems
    • G04B37/062—Means for preventing the winding stem from being pulled out too far

Definitions

  • the invention relates to a mechanism for winding a timepiece comprising at least a first energy accumulator arranged to supply energy to a first mechanism and a second energy accumulator arranged to supply energy to a second mechanism, said winding mechanism comprising a winding stem, a winding pinion and a sliding pinion carried by said winding stem and having facing each other straight teeth arranged to allow the winding pinion to be driven by the pinion sliding in both directions of rotation of the winding stem, said winding stem and the sliding pinion occupying the same axial winding position.
  • the invention also relates to a timepiece comprising such a winding mechanism.
  • Such a winding mechanism is for example described in the patent CH 330202 .
  • This document describes an alarm watch comprising a first energy accumulator constituted by the movement barrel and a second energy accumulator constituted by the striking barrel.
  • the mechanism comprises a winding stem arranged to carry out all the movement and alarm controls, and in particular the time setting of the movement and the chime, but also the winding of the movement barrel or the chime barrel by turning in one way or the other the winding stem when it occupies its middle winding position.
  • the sliding pinion engages with the winding pinion by straight-shaped teeth
  • a crown wheel engaged with the winding pinion
  • two crown transmissions both meshing with the crown wheel and intended to cooperate respectively with the ratchet of each of the barrels.
  • the meshing of the crown transmissions with the ratchet of the corresponding barrel is ensured by a spring which acts on the axes of the crown transmissions to push them and bring them into engagement with the corresponding ratchet.
  • the ratchet causes the persistence of a weak and cyclical contact between the parts.
  • Such a mechanism is fragile due to the permanent stress of the spring to ensure good meshing of the crown transmissions with the corresponding ratchet.
  • a loss of effectiveness of the spring, by fatigue or by aging, leads to the risk that one or the other of the references no longer cooperates with the corresponding ratchet so that the associated barrel can no longer be wound.
  • Another drawback is the wear of the crown gears when unclipping. In addition, this construction imposes a control of the manufacturing tolerances of the spring.
  • the patent CH 47977 also describes a winding and time-setting mechanism for a two-barrel alarm clock.
  • This mechanism comprises a movement barrel winding ratchet constantly engaged with a crown wheel meshing with a winding pinion, and arranged to actuate the movement barrel arbor only in one direction of rotation of the stem.
  • the movement barrel winding ratchet is used to transmit the reverse rotational movement of the stem either to the alarm barrel winding ratchet or to the alarm wheel by a reference pivoted on a lever that can be operated from outside the watch.
  • This mechanism has the disadvantage of requiring the actuation of an external control in addition to the rotation of the winding stem to wind the striking barrel.
  • the document CH 330 202 discloses a device for winding two barrels by rotating the winding crown in one direction or the other.
  • the object of the invention is in particular to overcome the various drawbacks of the known devices.
  • an object of the invention is to provide a winding mechanism allowing the winding of two energy accumulators simply by rotating the winding stem in both directions.
  • the invention also aims to provide a winding mechanism allowing the winding of two energy accumulators with high precision and reliability over time.
  • the invention also aims to provide a winding mechanism allowing the winding of two energy accumulators of simplified construction.
  • the present invention relates to a mechanism for winding a timepiece according to claim 1.
  • the winding mechanism according to the invention makes it possible to wind two energy accumulators simply by rotating the winding stem in one direction and in the other, by means of a mechanism of simplified construction.
  • the winding mechanism according to the invention is particularly suitable for winding a movement barrel constituting one of the energy accumulators and for winding a barrel of an independent automaton constituting the other of the energy accumulators.
  • the present invention also relates to a timepiece comprising a winding mechanism as defined above.
  • the present invention relates to a mechanism for winding at least two energy accumulators provided in a timepiece.
  • These two accumulators can be independent of one another or linked, for example at the discharge level. More particularly, in the following description, the two energy accumulators are independent or autonomous, one of the energy accumulators being a movement barrel supplying energy to the base movement of the timepiece and the other energy accumulators being for example an automaton barrel supplying an automaton provided in the timepiece. It is obvious that the energy accumulators can be used to supply energy to any other mechanism of a timepiece, for example a striking mechanism, deadbeat seconds or alarm clock, or any other appropriate mechanism.
  • the first energy accumulator is constituted by a first barrel, for example the movement barrel
  • the second energy accumulator is constituted by a second barrel, for example the automaton barrel . It is however quite obvious that the roles can be reversed, the “first” or “second” character attributed in the present description to the movement barrel, respectively to the automaton barrel, not being limiting.
  • a winding mechanism 1 of a timepiece which comprises in a conventional manner a winding stem 2 on which are mounted a winding pinion 4 and a sliding pinion 6.
  • the winding stem 2 is arranged to occupy at least two axial positions, namely a first winding position in which the rotation of the winding stem 2 in one direction (here clockwise) causes the winding of the first energy accumulator 3, i.e. i.e.
  • the winding pinion 4 is mounted free to rotate on a cylindrical part of the winding stem 2.
  • the sliding pinion 6 has a square hole and is slidably mounted on a corresponding square provided at the end of the winding stem 2.
  • the sliding pinion 6 can thus slide between the winding position in which it meshes with the winding pinion 4 and the time-setting position in which the sliding pinion 6 is separated of the winding pinion 4 and meshes with the time-setting mechanism.
  • the movement of the sliding pinion 6 is ensured by a mechanism comprising a pull rod 7 and a rocker 9, visible on the figure 4 . All these elements and mechanisms are known to those skilled in the art and do not require a more detailed description.
  • the sliding pinion and the winding pinion do not mesh via Breguet teeth but have facing each other straight edge teeth arranged to allow the driving of the winding pinion 4 by the sliding pinion 6 in both directions of clockwise and counterclockwise rotation of the winding stem 2, said winding stem 2 and the sliding pinion 6 occupying the same axial winding position.
  • the straight edge teeth of the sliding pinion 6 and of the winding pinion 4 can be dog teeth.
  • the winding pinion 4 and the sliding pinion 6 have respectively, instead of a Breguet toothing, teeth 8 in the form of slots ending in two inclined faces joining at the top of the slot and alternating with recesses 10 of complementary shape to that of the teeth 8 allowing their engagement by the engagement of the teeth 8 of one in the corresponding recesses 10 of the other.
  • This form of dog-on edge toothing allows the sliding pinion 6 to easily fit into the winding pinion 4, and to transmit more torque when they are in the winding position, as shown the figure 4 .
  • These edge dog teeth can also be machined without great strain.
  • the winding pinion 4 also comprises peripheral toothing 12 arranged to cooperate with the clutch device as will be detailed below.
  • the sliding pinion 6 also comprises an edge toothing 14, opposite to the edge toothing with claws 8, arranged to cooperate with the time-setting mechanism.
  • the winding mechanism comprises a clutch device 16 cooperating with the winding pinion 4.
  • the clutch device 16 can occupy intermediate and transitional positions in which it does not cooperate with any of the first and second energy accumulators 3, 5.
  • the clutch device 16 comprises a crown wheel 20 cooperating with the peripheral toothing 12 of the winding pinion 4 and on which is mounted a clutch rocker 22.
  • Said clutch rocker 22 bears at its end free a drive pinion 24 arranged to be able to kinematically connect the crown wheel 20 to one or the other of the first and second energy accumulators 3.5.
  • the drive pinion 24 is positioned on the clutch rocker 22 and arranged on the one hand to mesh with the crown wheel 20 and on the other hand to be able to mesh, according to the example shown, with either a first ratchet 28 cooperating with the first energy accumulator 3 when the clutch device 16 is in the first clutch position, or with a second ratchet 40 cooperating with the second energy accumulator 5 when said clutch device 16 is in second clutch position.
  • the first and second energy accumulators 3, 5 are wound up by their ratchet respective, non-return mechanisms (not shown) such as a pawl, spring or jumper, known to those skilled in the art, being provided at the level of the ratchet to prevent the ratchet from returning back.
  • first and second energy accumulators 3, 5 have opposite directions of operation.
  • a person skilled in the art knows how to arrange the components of the energy accumulators 3, 5 (drum, spring, shaft) in order to have two barrels operating in opposite directions. It is obvious that, in another variant not shown, the winding of one of the barrels can be done by the drum in order to rotate the barrel in the opposite direction, and the drive pinion will then be arranged to mesh with the drum of said barrel.
  • the two energy accumulators are arranged in the same plane, on the same stage of the timepiece.
  • the first and second energy accumulators can be arranged on different floors, intermediate mobiles and/or transmissions then being used to be able to kinematically link the clutch device to each of the accumulators. of energy when it occupies the corresponding clutch position.
  • the use of intermediate mobiles and/or references will have to be adapted by those skilled in the art according also to the direction of rotation of the other components of the construction, and in particular, for example according to the directions of rotation of the barrels.
  • winding mechanism when it is necessary to wind the first energy accumulator 3 or first barrel, the winding stem 2 is positioned in its axial winding position so that the sliding pinion 6 meshes with the winding pinion 4 as shown in the figure 4 , then winding stem 2 is turned clockwise. This rotation of the winding stem 2 causes the rotation of the winding pinion 4 clockwise.
  • the winding pinion 4 meshes with the crown wheel 20 to cause it to pivot counterclockwise (when looking at the dial).
  • the clutch rocker 22 and the drive pinion 24 being integral due to the friction and the absence of torque transmission through the cogs, and the drive pinion 24 being in engagement with the crown wheel 20, the rocker d clutch 22 and drive pinion 24 pivot integrally with said crown wheel 20 around its axis 21 counterclockwise until drive pinion 24 comes into contact with first ratchet 28 of first energy accumulator 3.
  • the clutch device 16 then occupies its first clutch position, as shown by the figures 1 to 4 .
  • the clutch device 16 When it occupies its first clutch position, the clutch device 16 is positioned so that the kinematic chain which links it to the second energy accumulator 5 is inactive, the clutch device 16 having no contact with one of the components of this kinematic chain.
  • this kinematic chain does not include any component in the release position. More particularly, as shown by the figures 1 to 4 , the drive pinion 24 having pivoted with the clutch lever 22 in the first clutch position, no contact is then possible between the drive pinion 24 and the second ratchet 40, or any other intermediate component possibly provided.
  • winding stem 2 is still positioned in its axial winding position so that sliding pinion 6, which has not moved, still meshes with winding pinion 4 (as shown in figure 4 ), then winding stem 2 is turned counterclockwise. This rotation of the winding stem 2 causes the rotation of the winding pinion 4 counterclockwise.
  • the winding pinion 4 meshes with the crown wheel 20 to cause it to pivot clockwise (when looking at the dial).
  • the clutch rocker 22 and the drive pinion 24 being integral due to the friction and the absence of torque transmission through the cogs, and the drive pinion 24 still being in mesh with the crown wheel 20, the rocker clutch 22 and the drive pinion 24 pivot integrally with said crown wheel 20 around its axis 21 in the clockwise direction until the drive pinion 24 comes into contact with the second ratchet 40 of the second energy accumulator 5
  • the clutch device 16 then occupies its second clutch position represented on the figure 5 .
  • the clutch device 16 When it occupies its second clutch position, the clutch device 16 is positioned so that the kinematic chain which links it to the first energy accumulator 3 is inactive, the clutch device 16 having no contact with one of the components of this kinematic chain.
  • this kinematic chain does not include any component in the release position. More specifically, as shown in figure 5 , the drive pinion 24 having pivoted with the clutch rocker 22 in the second clutch position, has moved away from the zone occupied by the first energy accumulator 3, no contact then being possible between the drive pinion 24 and the first ratchet 28, or any other intermediate component possibly provided.
  • the winding mechanism according to the invention allows, by means of a device of simple construction, precise and reliable winding of two energy accumulators by simply rotating the winding stem in both directions, the winding stem crown occupying the same axial winding position.

Description

Domaine de l'inventionField of the invention

L'invention se rapporte à un mécanisme de remontage d'une pièce d'horlogerie comprenant au moins un premier accumulateur d'énergie agencé pour alimenter en énergie un premier mécanisme et un second accumulateur d'énergie agencé pour alimenter en énergie un second mécanisme, ledit mécanisme de remontage comportant une tige de remontoir, un pignon de remontoir et un pignon coulant portés par ladite tige de remontoir et présentant en regard l'un de l'autre des dentures droites agencées pour permettre l'entrainement du pignon de remontoir par le pignon coulant dans les deux sens de rotation de la tige de remontoir, ladite tige de remontoir et le pignon coulant occupant une même position axiale de remontage. L'invention se rapporte également à une pièce d'horlogerie comprenant un tel mécanisme de remontage.The invention relates to a mechanism for winding a timepiece comprising at least a first energy accumulator arranged to supply energy to a first mechanism and a second energy accumulator arranged to supply energy to a second mechanism, said winding mechanism comprising a winding stem, a winding pinion and a sliding pinion carried by said winding stem and having facing each other straight teeth arranged to allow the winding pinion to be driven by the pinion sliding in both directions of rotation of the winding stem, said winding stem and the sliding pinion occupying the same axial winding position. The invention also relates to a timepiece comprising such a winding mechanism.

Arrière-plan de l'inventionBackground of the invention

Un tel mécanisme de remontage est par exemple décrit dans le brevet CH 330202 . Ce document décrit une montre-réveil comprenant un premier accumulateur d'énergie constitué par le barillet de mouvement et un second accumulateur d'énergie constitué par le barillet de sonnerie. Le mécanisme comprend une tige de remontoir agencée pour effectuer toutes les commandes du mouvement et du réveil, et notamment la mise à l'heure du mouvement et de la sonnerie, mais également le remontage du barillet de mouvement ou du barillet de sonnerie en tournant dans un sens ou dans l'autre la tige de remontoir lorsqu'elle occupe sa position médiane de remontage. A cet effet, le pignon coulant est en prise avec le pignon de remontoir par des dents de forme droite, et il est prévu une roue de couronne en prise avec le pignon de remontoir, et deux renvois de couronne, engrenant tous deux avec la roue de couronne et destinés à coopérer respectivement avec le rochet de chacun des barillets. L'engrènement des renvois de couronne avec le rochet du barillet correspondant est assuré par un ressort qui agit sur les axes des renvois de couronne pour les pousser et les amener en prise avec le rochet correspondant. Lorsque la tige de remontoir est tournée dans un sens ou dans l'autre, par l'effort tangentiel exercé par la roue de couronne sur les renvois, l'un des renvois de couronne opère le remontage du barillet correspondant tandis que l'autre fait décliquetage. Le décliquetage entraine la persistance d'un contact faible et cyclique entre les pièces. Un tel mécanisme est fragile du fait de la sollicitation permanente du ressort pour assurer un bon engrènement des renvois de couronne avec le rochet correspondant. Une perte d'efficacité du ressort, par fatigue ou par vieillissement, entraine le risque que l'un ou l'autre des renvois ne coopère plus avec le rochet correspondant de sorte que le barillet associé ne pourra plus être remonté. Un autre inconvénient est l'usure des renvois de couronne lors du décliquetage. De plus, cette construction impose un contrôle des tolérances de fabrication du ressort.Such a winding mechanism is for example described in the patent CH 330202 . This document describes an alarm watch comprising a first energy accumulator constituted by the movement barrel and a second energy accumulator constituted by the striking barrel. The mechanism comprises a winding stem arranged to carry out all the movement and alarm controls, and in particular the time setting of the movement and the chime, but also the winding of the movement barrel or the chime barrel by turning in one way or the other the winding stem when it occupies its middle winding position. For this purpose, the sliding pinion engages with the winding pinion by straight-shaped teeth, and there is provided a crown wheel engaged with the winding pinion, and two crown transmissions, both meshing with the crown wheel and intended to cooperate respectively with the ratchet of each of the barrels. The meshing of the crown transmissions with the ratchet of the corresponding barrel is ensured by a spring which acts on the axes of the crown transmissions to push them and bring them into engagement with the corresponding ratchet. When the winding stem is turned in one direction or the other, by the tangential force exerted by the crown wheel on the transmissions, one of the crown transmissions operates the winding of the corresponding barrel while the other unlatching. The ratchet causes the persistence of a weak and cyclical contact between the parts. Such a mechanism is fragile due to the permanent stress of the spring to ensure good meshing of the crown transmissions with the corresponding ratchet. A loss of effectiveness of the spring, by fatigue or by aging, leads to the risk that one or the other of the references no longer cooperates with the corresponding ratchet so that the associated barrel can no longer be wound. Another drawback is the wear of the crown gears when unclipping. In addition, this construction imposes a control of the manufacturing tolerances of the spring.

Le brevet CH 47977 décrit également un mécanisme de remontage et de mise à l'heure de montre-réveil à deux barillets. Ce mécanisme comprend un rochet de remontage du barillet de mouvement constamment en prise avec une roue de couronne engrenant avec un pignon de remontoir, et disposé pour n'actionner l'arbre de barillet de mouvement que dans un sens de rotation de la tige. Le rochet de remontage du barillet de mouvement est utilisé pour transmettre le mouvement inverse de rotation de la tige soit au rochet de remontage du barillet de réveil soit à la roue de réveil par un renvoi pivoté sur une bascule manœuvrable depuis l'extérieur de la montre. Ce mécanisme présente l'inconvénient de nécessiter l'actionnement d'une commande extérieure en plus de la rotation de la tige de remontoir pour remonter le barillet de sonnerie.The patent CH 47977 also describes a winding and time-setting mechanism for a two-barrel alarm clock. This mechanism comprises a movement barrel winding ratchet constantly engaged with a crown wheel meshing with a winding pinion, and arranged to actuate the movement barrel arbor only in one direction of rotation of the stem. The movement barrel winding ratchet is used to transmit the reverse rotational movement of the stem either to the alarm barrel winding ratchet or to the alarm wheel by a reference pivoted on a lever that can be operated from outside the watch. . This mechanism has the disadvantage of requiring the actuation of an external control in addition to the rotation of the winding stem to wind the striking barrel.

Le document CH 330 202 divulgue un dispositif de remontage de deux barillets par une rotation dans un sens ou dans l'autre de la couronne de remontage.The document CH 330 202 discloses a device for winding two barrels by rotating the winding crown in one direction or the other.

Résumé de l'inventionSummary of the invention

L'invention a notamment pour objectif de pallier les différents inconvénients des dispositifs connus.The object of the invention is in particular to overcome the various drawbacks of the known devices.

Plus précisément, un objectif de l'invention est de fournir un mécanisme de remontage permettant le remontage de deux accumulateurs d'énergie par la seule rotation de la tige de remontoir dans les deux sens.More specifically, an object of the invention is to provide a winding mechanism allowing the winding of two energy accumulators simply by rotating the winding stem in both directions.

L'invention a également pour objectif de fournir un mécanisme de remontage permettant le remontage de deux accumulateurs d'énergie présentant une grande précision et fiable dans le temps.The invention also aims to provide a winding mechanism allowing the winding of two energy accumulators with high precision and reliability over time.

L'invention a également pour objectif de fournir un mécanisme de remontage permettant le remontage de deux accumulateurs d'énergie de construction simplifiée.The invention also aims to provide a winding mechanism allowing the winding of two energy accumulators of simplified construction.

A cet effet, la présente invention concerne un mécanisme de remontage d'une pièce d'horlogerie selon la revendication 1.To this end, the present invention relates to a mechanism for winding a timepiece according to claim 1.

Ainsi, le mécanisme de remontage selon l'invention permet de remonter deux accumulateurs d'énergie par la seule rotation de la tige de remontoir dans un sens et dans l'autre, au moyen d'un mécanisme de construction simplifiée.Thus, the winding mechanism according to the invention makes it possible to wind two energy accumulators simply by rotating the winding stem in one direction and in the other, by means of a mechanism of simplified construction.

De plus, lorsque l'un des accumulateurs d'énergie est remonté au moyen du dispositif d'embrayage, l'autre des accumulateurs d'énergie est débrayé, ce qui signifie une absence totale de contact avec le dispositif d'embrayage et donc la suppression du risque d'usure, contrairement à un décliquetage.Moreover, when one of the energy accumulators is raised by means of the clutch device, the other of the energy accumulators is disengaged, which means a total absence of contact with the clutch device and therefore the elimination of the risk of wear, contrary to a ratchet.

Le mécanisme de remontage selon l'invention est particulièrement approprié pour remonter un barillet de mouvement constituant l'un des accumulateurs d'énergie et pour remonter un barillet d'un automate indépendant constituant l'autre des accumulateurs d'énergie.The winding mechanism according to the invention is particularly suitable for winding a movement barrel constituting one of the energy accumulators and for winding a barrel of an independent automaton constituting the other of the energy accumulators.

La présente invention concerne également une pièce d'horlogerie comprenant un mécanisme de remontage tel que défini ci-dessus.The present invention also relates to a timepiece comprising a winding mechanism as defined above.

Description sommaire des dessinsBrief description of the drawings

D'autres caractéristiques et avantages de l'invention apparaîtront plus clairement à la lecture de la description suivante d'un mode de réalisation particulier de l'invention, donné à titre de simple exemple illustratif et non limitatif, et des figures annexées, parmi lesquelles :

  • la figure 1 est une vue en perspective, côté ponts, du mécanisme de remontage conforme à l'invention, le dispositif d'embrayage étant dans sa première position d'embrayage, la tige de remontoir ayant été tournée dans le sens horaire;
  • la figure 2 est une vue en coupe dépliée du dispositif d'embrayage dans sa première position d'embrayage, côté ponts;
  • la figure 3 est une vue côté pont, du mécanisme de remontage conforme à l'invention, le dispositif d'embrayage étant dans sa première position d'embrayage;
  • la figure 4 est une vue côté cadran, du mécanisme de remontage conforme à l'invention, le dispositif d'embrayage étant dans sa première position d'embrayage ;
  • la figure 5 est une vue côté ponts, du mécanisme de remontage conforme à l'invention, le dispositif d'embrayage étant dans sa seconde position d'embrayage, la tige de remontoir ayant été tournée dans le sens antihoraire ;
  • la figure 6 est une vue en perspective du pignon de remontoir ; et
  • la figure 7 est une vue en perspective du pignon coulant.
Other characteristics and advantages of the invention will appear more clearly on reading the following description of a particular embodiment of the invention, given by way of simple illustrative and non-limiting example, and the appended figures, among which :
  • the figure 1 is a perspective view, bridge side, of the winding mechanism according to the invention, the clutch device being in its first clutch position, the winding stem having been turned clockwise;
  • the figure 2 is an unfolded sectional view of the clutch device in its first clutch position, bridge side;
  • the picture 3 is a bridge side view of the winding mechanism according to the invention, the clutch device being in its first clutch position;
  • the figure 4 is a dial side view of the winding mechanism according to the invention, the clutch device being in its first clutch position;
  • the figure 5 is a bridge side view of the winding mechanism according to the invention, the clutch device being in its second clutch position, the winding stem having been turned counterclockwise;
  • the figure 6 is a perspective view of the winding pinion; and
  • the figure 7 is a perspective view of the sliding gable.

Description détaillée d'un mode de réalisation préféréDetailed description of a preferred embodiment

La présente invention concerne un mécanisme de remontage d'au moins deux accumulateurs d'énergie prévus dans une pièce d'horlogerie. Ces deux accumulateurs peuvent être indépendants l'un de l'autre ou liés, par exemple au niveau de la décharge. Plus particulièrement, dans la description qui suit, les deux accumulateurs d'énergie sont indépendants ou autonomes, l'un des accumulateurs d'énergie étant un barillet de mouvement alimentant en énergie le mouvement de base de la pièce d'horlogerie et l'autre des accumulateurs d'énergie étant par exemple un barillet d'automate alimentant un automate prévu dans la pièce d'horlogerie. Il est bien évident que les accumulateurs d'énergie peuvent être utilisés pour alimenter en énergie tout autre mécanisme d'une pièce d'horlogerie, par exemple un mécanisme de sonnerie, de seconde morte ou de réveil, ou tout autre mécanisme approprié.The present invention relates to a mechanism for winding at least two energy accumulators provided in a timepiece. These two accumulators can be independent of one another or linked, for example at the discharge level. More particularly, in the following description, the two energy accumulators are independent or autonomous, one of the energy accumulators being a movement barrel supplying energy to the base movement of the timepiece and the other energy accumulators being for example an automaton barrel supplying an automaton provided in the timepiece. It is obvious that the energy accumulators can be used to supply energy to any other mechanism of a timepiece, for example a striking mechanism, deadbeat seconds or alarm clock, or any other appropriate mechanism.

Dans l'exemple décrit ci-dessous, le premier accumulateur d'énergie est constitué par un premier barillet, par exemple le barillet de mouvement, et le second accumulateur d'énergie est constitué par un second barillet, par exemple le barillet d'automate. Il est toutefois bien évident que les rôles peuvent être inversés, le caractère « premier » ou « second » attribué dans la présente description au barillet de mouvement, respectivement au barillet d'automate n'étant pas limitatif.In the example described below, the first energy accumulator is constituted by a first barrel, for example the movement barrel, and the second energy accumulator is constituted by a second barrel, for example the automaton barrel . It is however quite obvious that the roles can be reversed, the “first” or “second” character attributed in the present description to the movement barrel, respectively to the automaton barrel, not being limiting.

En référence notamment aux figures 1 et 2, il est représenté un mécanisme de remontage 1 d'une pièce d'horlogerie qui comporte d'une manière classique une tige de remontoir 2 sur laquelle sont montés un pignon de remontoir 4 et un pignon coulant 6. La tige de remontoir 2 est agencée pour occuper au moins deux positions axiales, à savoir une première position de remontage dans laquelle la rotation de la tige de remontoir 2 dans un sens (ici sens horaire) entraine l'armage du premier accumulateur d'énergie 3, c'est-à-dire le premier barillet, et la rotation de la tige de remontoir 2 dans l'autre sens (ici antihoraire) entraine l'armage du second accumulateur d'énergie 5, c'est-à-dire le second barillet, comme on le verra ci-dessous, et une deuxième position de mise à l'heure dans laquelle la rotation de la tige de remontoir dans les deux sens horaire et antihoraire permet la mise à l'heure du mouvement, aucun des premier et second accumulateurs d'énergie ne pouvant alors être armé, quel que soit le sens de rotation de la tige de remontoir. D'une manière connue de l'homme du métier, le pignon de remontoir 4 est monté libre en rotation sur une partie cylindrique de la tige de remontoir 2. Le pignon coulant 6 présente un trou carré et est monté coulissant sur un carré correspondant prévu à l'extrémité de la tige de remontoir 2. Le pignon coulant 6 peut ainsi coulisser entre la position de remontage dans laquelle il engrène avec le pignon de remontoir 4 et la position de mise à l'heure dans laquelle le pignon coulant 6 est séparé du pignon de remontoir 4 et engrène avec le mécanisme de mise à l'heure. Le déplacement du pignon coulant 6 est assuré par un mécanisme comprenant une tirette 7 et une bascule 9, visibles sur la figure 4. Tous ces éléments et mécanismes sont connus de l'homme du métier et ne nécessitent pas de description plus détaillée.With particular reference to figures 1 and 2 , there is shown a winding mechanism 1 of a timepiece which comprises in a conventional manner a winding stem 2 on which are mounted a winding pinion 4 and a sliding pinion 6. The winding stem 2 is arranged to occupy at least two axial positions, namely a first winding position in which the rotation of the winding stem 2 in one direction (here clockwise) causes the winding of the first energy accumulator 3, i.e. i.e. the first barrel, and the rotation of the winding stem 2 in the other direction (here anti-clockwise) causes the winding of the second energy accumulator 5, that is to say the second barrel, as shown will see below, and a second time-setting position in which rotation of the winding stem in both clockwise and anti-clockwise directions sets the time of the movement, none of the first and second energy accumulators cannot then be cocked, regardless of the direction of rotation of the rod d e watch winder. In a manner known to those skilled in the art, the winding pinion 4 is mounted free to rotate on a cylindrical part of the winding stem 2. The sliding pinion 6 has a square hole and is slidably mounted on a corresponding square provided at the end of the winding stem 2. The sliding pinion 6 can thus slide between the winding position in which it meshes with the winding pinion 4 and the time-setting position in which the sliding pinion 6 is separated of the winding pinion 4 and meshes with the time-setting mechanism. The movement of the sliding pinion 6 is ensured by a mechanism comprising a pull rod 7 and a rocker 9, visible on the figure 4 . All these elements and mechanisms are known to those skilled in the art and do not require a more detailed description.

On notera toutefois qu'à la différence des mécanismes de remontage classiques, le pignon coulant et le pignon de remontoir ne s'engrènent pas par une denture Breguet mais présentent en regard l'un de l'autre des dentures de chant droites agencées pour permettre l'entrainement du pignon de remontoir 4 par le pignon coulant 6 dans les deux sens de rotation horaire et antihoraire de la tige de remontoir 2, ladite tige de remontoir 2 et le pignon coulant 6 occupant une même position axiale de remontage.It should be noted, however, that unlike conventional winding mechanisms, the sliding pinion and the winding pinion do not mesh via Breguet teeth but have facing each other straight edge teeth arranged to allow the driving of the winding pinion 4 by the sliding pinion 6 in both directions of clockwise and counterclockwise rotation of the winding stem 2, said winding stem 2 and the sliding pinion 6 occupying the same axial winding position.

En référence plus particulièrement aux figures 6 et 7, les dentures de chant droites du pignon coulant 6 et du pignon de remontoir 4 peuvent être des dentures à crabot. A cet effet, le pignon de remontoir 4 et le pignon coulant 6 présentent respectivement, au lieu d'une denture Breguet, des dents 8 en forme de créneaux se terminant par deux faces inclinées se joignant au sommet du créneau et alternant avec des évidements 10 de forme complémentaire à celle des dents 8 permettant leur engrènement par l'engagement des dents 8 de l'un dans les évidements correspondants 10 de l'autre. Cette forme de dentures de chant à crabot permet au pignon coulant 6 de venir s'emboiter (se « craboter ») facilement dans le pignon de remontoir 4, et de transmettre plus de couple lorsqu'ils sont en position de remontage, comme le montre la figure 4. Ces dentures de chant à crabot sont également usinables sans grande contrainte. D'une manière connue en soi, le pignon de remontoir 4 comprend également une denture périphérique 12 agencée pour coopérer avec le dispositif d'embrayage comme cela sera détaillé ci-dessous. Le pignon coulant 6 comprend également une denture de chant 14, opposée à la denture de chant à crabots 8, agencée pour coopérer avec le mécanisme de mise à l'heure.With particular reference to figures 6 and 7 , the straight edge teeth of the sliding pinion 6 and of the winding pinion 4 can be dog teeth. To this end, the winding pinion 4 and the sliding pinion 6 have respectively, instead of a Breguet toothing, teeth 8 in the form of slots ending in two inclined faces joining at the top of the slot and alternating with recesses 10 of complementary shape to that of the teeth 8 allowing their engagement by the engagement of the teeth 8 of one in the corresponding recesses 10 of the other. This form of dog-on edge toothing allows the sliding pinion 6 to easily fit into the winding pinion 4, and to transmit more torque when they are in the winding position, as shown the figure 4 . These edge dog teeth can also be machined without great strain. In a manner known per se, the winding pinion 4 also comprises peripheral toothing 12 arranged to cooperate with the clutch device as will be detailed below. The sliding pinion 6 also comprises an edge toothing 14, opposite to the edge toothing with claws 8, arranged to cooperate with the time-setting mechanism.

Conformément à l'invention, et en référence aux figures 1 à 4, le mécanisme de remontage comprend un dispositif d'embrayage 16 coopérant avec le pignon de remontoir 4.In accordance with the invention, and with reference to the figures 1 to 4 , the winding mechanism comprises a clutch device 16 cooperating with the winding pinion 4.

En outre, le dispositif d'embrayage 16 est agencé pour occuper:

  • une première position d'embrayage selon laquelle ledit dispositif d'embrayage 16 embraye le pignon de remontoir 4 et le premier accumulateur d'énergie 3 lorsque la tige de remontoir 2 est tournée dans un sens (ici sens horaire), le second accumulateur d'énergie 5 étant alors débrayé, sans aucun contact avec ledit dispositif d'embrayage 16, et
  • une seconde position d'embrayage selon laquelle ledit dispositif d'embrayage 16 embraye le pignon de remontoir 4 et le second accumulateur d'énergie 5 lorsque la tige de remontoir 2 est tournée dans l'autre sens (ici sens antihoraire), le premier accumulateur d'énergie 3 étant alors débrayé, sans aucun contact avec ledit dispositif d'embrayage 16.
In addition, the clutch device 16 is arranged to occupy:
  • a first clutch position in which said clutch device 16 engages the winding pinion 4 and the first energy accumulator 3 when the winding stem 2 is turned in one direction (here clockwise), the second accumulator energy 5 being then disengaged, without any contact with said clutch device 16, and
  • a second clutch position in which said clutch device 16 engages the winding pinion 4 and the second energy accumulator 5 when the winding stem 2 is turned in the other direction (counterclockwise here), the first accumulator of energy 3 then being disengaged, without any contact with said clutch device 16.

Entre ces deux première et seconde positions d'embrayage, le dispositif d'embrayage 16 peut occuper des positions intermédiaires et transitoires dans lesquelles il ne coopère avec aucun des premier et second accumulateurs d'énergie 3, 5.Between these two first and second clutch positions, the clutch device 16 can occupy intermediate and transitional positions in which it does not cooperate with any of the first and second energy accumulators 3, 5.

Selon l'invention, le dispositif d'embrayage 16 comprend une roue de couronne 20 coopérant avec la denture périphérique 12 du pignon de remontoir 4 et sur laquelle est montée une bascule d'embrayage 22. Ladite bascule d'embrayage 22 porte à son extrémité libre un pignon entraineur 24 agencé pour pouvoir relier cinématiquement la roue de couronne 20 à l'un ou l'autre des premier et second accumulateurs d'énergie 3,5. Plus particulièrement, le pignon entraineur 24 est positionné sur la bascule d'embrayage 22 et agencé d'une part pour engrener avec la roue de couronne 20 et d'autre part pour pouvoir engrener, selon l'exemple représenté, avec soit un premier rochet 28 coopérant avec le premier accumulateur d'énergie 3 lorsque le dispositif d'embrayage 16 est en première position d'embrayage, soit avec un second rochet 40 coopérant avec le second accumulateur d'énergie 5 lorsque ledit dispositif d'embrayage 16 est en seconde position d'embrayage. Dans l'exemple décrit ici, les premier et second accumulateurs d'énergie 3, 5 sont remontés par leur rochet respectif, des mécanismes anti-retour (non représentés) tels que cliquet, ressort ou sautoir, connus de l'homme du métier, étant prévus au niveau du rochet pour empêcher le rochet de revenir en arrière. En outre, les premier et second accumulateurs d'énergie 3, 5 ont ici des sens de fonctionnement opposés. L'homme du métier sait comment agencer les composants des accumulateurs d'énergie 3, 5 (tambour, ressort, arbre) afin d'avoir deux barillets fonctionnant dans des sens opposés. Il est bien évident que, dans une autre variante non représentée, l'armage d'un des barillets peut se faire par le tambour afin de faire tourner le barillet dans le sens opposé, et le pignon entraineur sera alors agencé pour engrener avec le tambour dudit barillet.According to the invention, the clutch device 16 comprises a crown wheel 20 cooperating with the peripheral toothing 12 of the winding pinion 4 and on which is mounted a clutch rocker 22. Said clutch rocker 22 bears at its end free a drive pinion 24 arranged to be able to kinematically connect the crown wheel 20 to one or the other of the first and second energy accumulators 3.5. More particularly, the drive pinion 24 is positioned on the clutch rocker 22 and arranged on the one hand to mesh with the crown wheel 20 and on the other hand to be able to mesh, according to the example shown, with either a first ratchet 28 cooperating with the first energy accumulator 3 when the clutch device 16 is in the first clutch position, or with a second ratchet 40 cooperating with the second energy accumulator 5 when said clutch device 16 is in second clutch position. In the example described here, the first and second energy accumulators 3, 5 are wound up by their ratchet respective, non-return mechanisms (not shown) such as a pawl, spring or jumper, known to those skilled in the art, being provided at the level of the ratchet to prevent the ratchet from returning back. Furthermore, the first and second energy accumulators 3, 5 here have opposite directions of operation. A person skilled in the art knows how to arrange the components of the energy accumulators 3, 5 (drum, spring, shaft) in order to have two barrels operating in opposite directions. It is obvious that, in another variant not shown, the winding of one of the barrels can be done by the drum in order to rotate the barrel in the opposite direction, and the drive pinion will then be arranged to mesh with the drum of said barrel.

La bascule d'embrayage 22 est montée libre sur l'axe 21 de ladite roue de couronne 20 et le pignon entraineur 24 est monté à friction sur ladite bascule d'embrayage 22, de sorte que, tant que le dispositif d'embrayage 16 n'occupe pas l'une des positions d'embrayage, ladite bascule d'embrayage 22 et le pignon entraineur 24 pivotent solidairement avec ladite roue de couronne 20 pour passer :

  • en première position d'embrayage et lier cinématiquement le pignon entraineur 24 au premier rochet 28 du premier accumulateur d'énergie 3, puis, une fois le pignon entraineur 24 au contact du premier rochet 28 du premier accumulateur d'énergie 3, la bascule d'embrayage 22 est empêchée de continuer à pivoter et le pignon entraineur 24 se désolidarise de la bascule d'embrayage 22 grâce à la friction, permettant ainsi l'entrainement du pignon entraineur 24 par le pignon de remontoir 4 via la roue de couronne 20 pour remonter le premier accumulateur d'énergie 3 lorsque la tige de remontoir 2 est tournée dans un premier sens, par exemple le sens horaire, le pignon entraineur 24 étant de ce fait à distance du second accumulateur d'énergie 5,
  • en seconde position d'embrayage et lier cinématiquement le pignon entraineur 24 au second rochet 40 du second accumulateur d'énergie 5 puis, une fois le pignon entraineur 24 au contact du second rochet 40 du second accumulateur d'énergie 5, la bascule d'embrayage 22 est empêchée de continuer à pivoter et le pignon entraineur 24 se désolidarise de la bascule d'embrayage 22 grâce à la friction, permettant ainsi l'entrainement du pignon entraineur 24 par le pignon de remontoir 4 via la roue de couronne 20 pour remonter le second accumulateur d'énergie 5 lorsque la tige de remontoir 2 est tournée dans un second sens inverse, par exemple le sens antihoraire, le pignon entraineur 24 étant de ce fait à distance du premier accumulateur d'énergie 3.
The clutch rocker 22 is freely mounted on the shaft 21 of said crown wheel 20 and the drive pinion 24 is friction mounted on said clutch rocker 22, so that, as long as the clutch device 16 n does not occupy one of the clutch positions, said clutch rocker 22 and the drive pinion 24 pivot integrally with said crown wheel 20 to pass:
  • in the first clutch position and kinematically link the drive pinion 24 to the first ratchet 28 of the first energy accumulator 3, then, once the drive pinion 24 is in contact with the first ratchet 28 of the first energy accumulator 3, the rocker d clutch 22 is prevented from continuing to pivot and drive pinion 24 separates from clutch rocker 22 due to friction, thus allowing drive pinion 24 to be driven by winding pinion 4 via crown wheel 20 to wind the first energy accumulator 3 when the winding stem 2 is turned in a first direction, for example clockwise, the drive pinion 24 being therefore at a distance from the second energy accumulator 5,
  • in the second clutch position and kinematically link the drive pinion 24 to the second ratchet 40 of the second energy accumulator 5 then, once the drive pinion 24 is in contact with the second ratchet 40 of the second energy accumulator 5, the clutch rocker 22 is prevented from continuing to pivot and the drive pinion 24 separates from the clutch rocker 22 thanks to the friction , thus allowing the drive pinion 24 to be driven by the winding pinion 4 via the crown wheel 20 to wind the second energy accumulator 5 when the winding stem 2 is turned in a second opposite direction, for example counterclockwise. , the drive pinion 24 being therefore at a distance from the first energy accumulator 3.

Il est bien évident que les sens de rotation de la tige de remontoir décrits ici ne sont pas limitatifs et qu'ils peuvent être inversés, le premier accumulateur d'énergie pouvant être remonté par rotation de la tige de remontoir dans le sens antihoraire, le second accumulateur d'énergie étant alors remonté par rotation de la tige de remontoir dans le sens horaire.It is obvious that the directions of rotation of the winding stem described here are not limiting and that they can be reversed, the first energy accumulator being able to be wound up by rotation of the winding stem counterclockwise, the second energy accumulator then being wound up by rotation of the winding stem in the clockwise direction.

En outre, selon un mode de réalisation préféré, les deux accumulateurs d'énergie sont disposés dans un même plan, à un même étage de la pièce d'horlogerie. Il est bien évident que dans une variante non représentée, les premier et second accumulateurs d'énergie peuvent être disposés à des étages différents, des mobiles intermédiaires et/ou renvois étant alors utilisés pour pouvoir lier cinématiquement le dispositif d'embrayage à chacun des accumulateurs d'énergie lorsqu'il occupe la position d'embrayage correspondante. De plus, l'utilisation de mobiles intermédiaires et/ou de renvois sera à adapter par l'homme du métier en fonction également du sens de rotation des autres composants de la construction, et notamment par exemple en fonction des sens de rotation des barillets.Furthermore, according to a preferred embodiment, the two energy accumulators are arranged in the same plane, on the same stage of the timepiece. It is obvious that in a variant not shown, the first and second energy accumulators can be arranged on different floors, intermediate mobiles and/or transmissions then being used to be able to kinematically link the clutch device to each of the accumulators. of energy when it occupies the corresponding clutch position. In addition, the use of intermediate mobiles and/or references will have to be adapted by those skilled in the art according also to the direction of rotation of the other components of the construction, and in particular, for example according to the directions of rotation of the barrels.

Le fonctionnement du mécanisme de remontage selon l'invention est le suivant : en référence aux figures 1 à 4, lorsqu'il est nécessaire de remonter le premier accumulateur d'énergie 3 ou premier barillet, la tige de remontoir 2 est positionnée dans sa position axiale de remontage pour que le pignon coulant 6 engrène avec le pignon de remontoir 4 comme le montre la figure 4, puis la tige de remontoir 2 est tournée dans le sens horaire. Cette rotation de la tige de remontoir 2 entraine la rotation du pignon de remontoir 4 dans le sens horaire. Le pignon de remontoir 4 engrène avec la roue de couronne 20 pour la faire pivoter dans le sens antihoraire (lorsque l'on regarde le cadran). La bascule d'embrayage 22 et le pignon entraineur 24 étant solidaires du fait de la friction et de l'absence de transmission de couple à travers les rouages, et le pignon entraineur 24 étant en prise avec la roue de couronne 20, la bascule d'embrayage 22 et le pignon entraineur 24 pivotent solidairement avec ladite roue de couronne 20 autour de son axe 21 dans le sens antihoraire jusqu'à ce que le pignon entraineur 24 entre en contact avec le premier rochet 28 du premier accumulateur d'énergie 3. Le dispositif d'embrayage 16 occupe alors sa première position d'embrayage, comme le montrent les figures 1 à 4. Le pivotement de la bascule d'embrayage 22 étant désormais empêché, le pignon entraineur 24 se désolidarise alors de la bascule d'embrayage 22 grâce à la friction, de sorte que la rotation de la roue de couronne 20 entrainée par le pignon de remontoir 4 entraine maintenant la rotation du pignon entraineur 24 qui engrène avec le premier rochet 28 pour le remontage du premier barillet 3.The operation of the winding mechanism according to the invention is as follows: with reference to the figures 1 to 4 , when it is necessary to wind the first energy accumulator 3 or first barrel, the winding stem 2 is positioned in its axial winding position so that the sliding pinion 6 meshes with the winding pinion 4 as shown in the figure 4 , then winding stem 2 is turned clockwise. This rotation of the winding stem 2 causes the rotation of the winding pinion 4 clockwise. The winding pinion 4 meshes with the crown wheel 20 to cause it to pivot counterclockwise (when looking at the dial). The clutch rocker 22 and the drive pinion 24 being integral due to the friction and the absence of torque transmission through the cogs, and the drive pinion 24 being in engagement with the crown wheel 20, the rocker d clutch 22 and drive pinion 24 pivot integrally with said crown wheel 20 around its axis 21 counterclockwise until drive pinion 24 comes into contact with first ratchet 28 of first energy accumulator 3. The clutch device 16 then occupies its first clutch position, as shown by the figures 1 to 4 . The pivoting of the clutch rocker 22 being now prevented, the drive pinion 24 then separates from the clutch rocker 22 thanks to the friction, so that the rotation of the crown wheel 20 driven by the winding pinion 4 now causes the rotation of the drive pinion 24 which meshes with the first ratchet 28 for winding the first barrel 3.

Lorsqu'il occupe sa première position d'embrayage, le dispositif d'embrayage 16 est positionné de sorte que la chaine cinématique qui le lie au second accumulateur d'énergie 5 est inactive, le dispositif d'embrayage 16 n'ayant aucun contact avec l'un des composants de cette chaine cinématique. Notamment, cette chaine cinématique ne comprend aucun composant en position de décliquetage. Plus particulièrement, comme le montrent les figures 1 à 4, le pignon entraineur 24 ayant pivoté avec la bascule d'embrayage 22 en première position d'embrayage, aucun contact n'est alors possible entre le pignon entraineur 24 et le second rochet 40, ou tout autre composant intermédiaire éventuellement prévu.When it occupies its first clutch position, the clutch device 16 is positioned so that the kinematic chain which links it to the second energy accumulator 5 is inactive, the clutch device 16 having no contact with one of the components of this kinematic chain. In particular, this kinematic chain does not include any component in the release position. More particularly, as shown by the figures 1 to 4 , the drive pinion 24 having pivoted with the clutch lever 22 in the first clutch position, no contact is then possible between the drive pinion 24 and the second ratchet 40, or any other intermediate component possibly provided.

Pour remonter le second accumulateur d'énergie 5, en référence à la figure 5, la tige de remontoir 2 est toujours positionnée dans sa position axiale de remontage pour que le pignon coulant 6, qui ne s'est pas déplacé, engrène toujours avec le pignon de remontoir 4 (comme le montre la figure 4), puis la tige de remontoir 2 est tournée dans le sens antihoraire. Cette rotation de la tige de remontoir 2 entraine la rotation du pignon de remontoir 4 dans le sens antihoraire. Le pignon de remontoir 4 engrène avec la roue de couronne 20 pour la faire pivoter dans le sens horaire (lorsque l'on regarde le cadran). La bascule d'embrayage 22 et le pignon entraineur 24 étant solidaires du fait de la friction et de l'absence de transmission de couple à travers les rouages, et le pignon entraineur 24 étant toujours en prise avec la roue de couronne 20, la bascule d'embrayage 22 et le pignon entraineur 24 pivotent solidairement avec ladite roue de couronne 20 autour de son axe 21 dans le sens horaire jusqu'à ce que le pignon entraineur 24 entre en contact avec le second rochet 40 du second accumulateur d'énergie 5. Le dispositif d'embrayage 16 occupe alors sa seconde position d'embrayage représentée sur la figure 5. Le pivotement de la bascule d'embrayage 22 étant désormais empêché, le pignon entraineur 24 se désolidarise alors de la bascule d'embrayage 22 grâce à la friction, de sorte que la rotation de la roue de couronne 20 entrainée par le pignon de remontoir 4 entraine maintenant la rotation du pignon entraineur 24 qui engrène avec le second rochet 40 pour le remontage du second barillet 5.To reassemble the second energy accumulator 5, with reference to the figure 5 , winding stem 2 is still positioned in its axial winding position so that sliding pinion 6, which has not moved, still meshes with winding pinion 4 (as shown in figure 4 ), then winding stem 2 is turned counterclockwise. This rotation of the winding stem 2 causes the rotation of the winding pinion 4 counterclockwise. The winding pinion 4 meshes with the crown wheel 20 to cause it to pivot clockwise (when looking at the dial). The clutch rocker 22 and the drive pinion 24 being integral due to the friction and the absence of torque transmission through the cogs, and the drive pinion 24 still being in mesh with the crown wheel 20, the rocker clutch 22 and the drive pinion 24 pivot integrally with said crown wheel 20 around its axis 21 in the clockwise direction until the drive pinion 24 comes into contact with the second ratchet 40 of the second energy accumulator 5 The clutch device 16 then occupies its second clutch position represented on the figure 5 . The pivoting of the clutch rocker 22 being now prevented, the drive pinion 24 then separates from the clutch rocker 22 thanks to the friction, so that the rotation of the crown wheel 20 driven by the winding pinion 4 now causes the rotation of the drive pinion 24 which meshes with the second ratchet 40 for winding the second barrel 5.

Lorsqu'il occupe sa seconde position d'embrayage, le dispositif d'embrayage 16 est positionné de sorte que la chaine cinématique qui le lie au premier accumulateur d'énergie 3 est inactive, le dispositif d'embrayage 16 n'ayant aucun contact avec l'un des composants de cette chaine cinématique. Notamment, cette chaine cinématique ne comprend aucun composant en position de décliquetage. Plus particulièrement, comme le montre la figure 5, le pignon entraineur 24 ayant pivoté avec la bascule d'embrayage 22 en seconde position d'embrayage, s'est écarté de la zone occupée par le premier accumulateur d'énergie 3, aucun contact n'étant alors possible entre le pignon entraineur 24 et le premier rochet 28, ou tout autre composant intermédiaire éventuellement prévu.When it occupies its second clutch position, the clutch device 16 is positioned so that the kinematic chain which links it to the first energy accumulator 3 is inactive, the clutch device 16 having no contact with one of the components of this kinematic chain. In particular, this kinematic chain does not include any component in the release position. More specifically, as shown in figure 5 , the drive pinion 24 having pivoted with the clutch rocker 22 in the second clutch position, has moved away from the zone occupied by the first energy accumulator 3, no contact then being possible between the drive pinion 24 and the first ratchet 28, or any other intermediate component possibly provided.

Ainsi, le mécanisme de remontage selon l'invention permet, au moyen d'un dispositif de construction simple, un remontage précis et fiable de deux accumulateurs d'énergie par la seule rotation de la tige de remontoir dans les deux sens, la tige de remontoir occupant une même position axiale de remontage.Thus, the winding mechanism according to the invention allows, by means of a device of simple construction, precise and reliable winding of two energy accumulators by simply rotating the winding stem in both directions, the winding stem crown occupying the same axial winding position.

Claims (5)

  1. Winding mechanism of a timepiece comprising at least one first power accumulator (3) provided in order to supply a first mechanism with power and a second power accumulator (5) provided in order to supply a second mechanism with power, said winding mechanism comprising a winding stem (2), a winding pinion (4) and a sliding pinion (6) carried by said winding stem (2) and having face gear toothings, facing one another, provided in order to allow driving of the winding pinion (4) by the sliding pinion (6) in the two directions of rotation of the winding stem (2), said winding stem (2) and the sliding pinion (6) occupying a same axial winding position, the winding mechanism comprising a coupling device (16) which cooperates with the winding pinion (4) and is provided in order to occupy a first coupling position for coupling the winding pinion (4) and the first power accumulator (3) when the winding stem (2) is turned in one direction, the second power accumulator (5) being uncoupled, without any contact with said coupling device (16), and a second coupling position for coupling the winding pinion (4) and the second power accumulator (5) when the winding stem (2) is turned in the other direction, the first power accumulator (3) being uncoupled, without any contact with said coupling device (16), wherein the coupling device (16) comprises a crown wheel (20) which cooperates with the winding pinion (4) and on which a coupling lever (22) is mounted, carrying a driving pinion (24) provided in order to be able to connect kinematically the crown wheel (20) to one or other of the first and second power accumulators (3, 5), said coupling lever (22) being mounted freely on the crown wheel (20) and the driving pinion (24) being mounted frictionally on the coupling lever (22):
    - so as to pivot integrally with said crown wheel (20) into the first coupling position in order to connect cinematically the driving pinion (24) to the first power accumulator (3), the driving pinion (24) being provided in order to be able to mesh with a first ratchet (28) which cooperates with the first power accumulator (3), when the driving pinion (24) is in contact with of the first ratchet (28) of the first power accumulator (3), the coupling lever (22) is prevented from continuing to pivot and the driving pinion (24) separates from the coupling lever (22) due to friction, allowing driving of the driving pinion (24) by the winding pinion (4) via the crown wheel (20) in order to wind the first power accumulator (3) when the winding stem (2) is turned in a first direction, and
    - so as to pivot integrally with said crown wheel (20) into the second coupling position in order to connect cinematically the driving pinion (24) to the second power accumulator (5), the driving pinion (24) being provided in order to be able to mesh with a second ratchet (40) which cooperates with the second power accumulator (5), when the driving pinion (24) is in contact with of the second ratchet (40) of the second power accumulator (5), the coupling lever (22) is prevented from continuing to pivot and the driving pinion (24) separates from the coupling lever (22) due to friction, allowing driving of the driving pinion (24) by the winding pinion (4) via crown wheel (20) in order to wind the second power accumulator (5) when the winding stem (2) is turned in a second inverse direction.
  2. Winding mechanism according to the preceding claim, characterised in that the face gear toothings of the sliding pinion (6) and of the winding pinion (4) are dog clutch teeth.
  3. Winding mechanism according to the preceding claim, characterised in that the sliding pinion (6) and the winding pinion (4) have respectively crenelated teeth (8) ending in two inclined faces that meet at the top of the crenelation and alternate with recesses (10) of complementary shape to those of the teeth (8), allowing said pinions to mesh by engagement of the teeth (8) of one in the corresponding recesses (10) of the other.
  4. Winding mechanism according to one of the preceding claims, characterised in that the first and second power accumulators (3, 5) are disposed in the same plane.
  5. Timepiece comprising at least one first power accumulator (3) provided in order to supply a first mechanism with power, a second power accumulator (5) provided in order to supply a second mechanism with power, and a winding mechanism according to one of the preceding claims.
EP17161690.7A 2017-03-17 2017-03-17 Winding mechanism of a timepiece Active EP3376309B1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP17161690.7A EP3376309B1 (en) 2017-03-17 2017-03-17 Winding mechanism of a timepiece
JP2018045294A JP6706639B2 (en) 2017-03-17 2018-03-13 Winding mechanism of timer
US15/919,258 US10802445B2 (en) 2017-03-17 2018-03-13 Winding mechanism of a timepiece
RU2018109333A RU2760425C2 (en) 2017-03-17 2018-03-16 Node for winding up clock and clock containing such a node
CN201810218496.8A CN108628142B (en) 2017-03-17 2018-03-16 Winding mechanism for clock

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP17161690.7A EP3376309B1 (en) 2017-03-17 2017-03-17 Winding mechanism of a timepiece

Publications (2)

Publication Number Publication Date
EP3376309A1 EP3376309A1 (en) 2018-09-19
EP3376309B1 true EP3376309B1 (en) 2022-05-18

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Application Number Title Priority Date Filing Date
EP17161690.7A Active EP3376309B1 (en) 2017-03-17 2017-03-17 Winding mechanism of a timepiece

Country Status (5)

Country Link
US (1) US10802445B2 (en)
EP (1) EP3376309B1 (en)
JP (1) JP6706639B2 (en)
CN (1) CN108628142B (en)
RU (1) RU2760425C2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3376305B1 (en) * 2017-03-17 2020-07-22 Harry Winston SA Winding device with push-button for watch

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH21313A (en) * 1900-04-17 1901-06-30 Winding and time-setting mechanism for watches, improved
CH35121A (en) * 1905-11-18 1906-07-15 Freres Pellaton Winding mechanism for watches with two barrels
CH47977A (en) 1909-08-06 1910-09-01 Eugene Favre Louis Winding and time-setting mechanism in two-barrel alarm watches
CH151727A (en) * 1930-11-14 1931-12-31 Koehler Wilhelm Winding and adjusting devices for clocks.
CH330202A (en) 1956-03-05 1958-05-31 Omega Brandt & Freres Sa Louis Alarm clock
SU1756859A1 (en) * 1990-04-17 1992-08-23 Научно-исследовательский институт часовой промышленности Device for winding-up of clocks and shifting of hands
EP1862871B1 (en) * 2006-05-31 2008-05-21 Montres Breguet S.A. Timepiece comprising an improved time-setting mechanism
CN201060379Y (en) * 2007-05-21 2008-05-14 杭州手表有限公司 Double cased wheel mechanism of timekeeper
FI124328B (en) * 2008-12-31 2014-06-30 Suunto Oy Two-function control means for a wrist computer or equivalent and a method for controlling a wrist computer or a corresponding terminal device
EP2221676B1 (en) * 2009-02-24 2011-07-20 Montres Breguet SA Timepiece including a chronograph and a watch
JP6334111B2 (en) * 2012-08-21 2018-05-30 ロレックス・ソシエテ・アノニムＲｏｌｅｘ Ｓａ Clock mechanism coupling lever and coupling device
CN203054455U (en) * 2012-12-26 2013-07-10 烟台北极星股份有限公司 Clockwork spring actuating unit for movement of mechanical clock
CH708340B1 (en) * 2013-07-04 2017-10-13 Richemont Int Sa Manual winding mechanism for timepiece.
CN205485302U (en) * 2016-03-25 2016-08-17 谭泽华 Parallelly connected watch movement's of two spring drums drive mechanism

Also Published As

Publication number Publication date
CN108628142A (en) 2018-10-09
JP6706639B2 (en) 2020-06-10
CN108628142B (en) 2020-06-12
RU2018109333A (en) 2019-09-16
RU2018109333A3 (en) 2021-07-23
JP2018155751A (en) 2018-10-04
RU2760425C2 (en) 2021-11-24
US20180267475A1 (en) 2018-09-20
EP3376309A1 (en) 2018-09-19
US10802445B2 (en) 2020-10-13

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