EP2515186A1 - Gear-train for timepiece - Google Patents

Gear-train for timepiece Download PDF

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Publication number
EP2515186A1
EP2515186A1 EP11003306A EP11003306A EP2515186A1 EP 2515186 A1 EP2515186 A1 EP 2515186A1 EP 11003306 A EP11003306 A EP 11003306A EP 11003306 A EP11003306 A EP 11003306A EP 2515186 A1 EP2515186 A1 EP 2515186A1
Authority
EP
European Patent Office
Prior art keywords
gear
satellite
wheel
sun gear
finishing
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.)
Granted
Application number
EP11003306A
Other languages
German (de)
French (fr)
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EP2515186B1 (en
Inventor
Cyrille Chatel
Kéwin Bas
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.)
Cartier Creation Studio SA
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Cartier Creation Studio SA
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Filing date
Publication date
Application filed by Cartier Creation Studio SA filed Critical Cartier Creation Studio SA
Priority to EP11003306.5A priority Critical patent/EP2515186B1/en
Priority to JP2012108887A priority patent/JP6016447B2/en
Priority to US13/450,506 priority patent/US8737176B2/en
Priority to CN201210118300.0A priority patent/CN102749835B/en
Publication of EP2515186A1 publication Critical patent/EP2515186A1/en
Priority to HK12110956.7A priority patent/HK1170316A1/en
Application granted granted Critical
Publication of EP2515186B1 publication Critical patent/EP2515186B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • G04B13/00—Gearwork
    • G04B13/007—Gearwork with differential work
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B19/00—Indicating the time by visual means
    • G04B19/02—Back-gearing arrangements between gear train and hands
    • 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
    • G04B5/00—Automatic winding up
    • G04B5/02—Automatic winding up by self-winding caused by the movement of the watch

Definitions

  • the present invention relates to the work train of a timepiece, that is to say the wheel connecting the barrel of the mechanical clockwork movement to the exhaust pinion of this movement.
  • the document FR 1 457 818 describes a simplification of the gear used in an automatic watch.
  • the oscillating mass controls a differential device actuating, on the one hand, directly the work train and, on the other hand, the mainspring.
  • the differential device comprises a differential planetary gear having a first internal sun gear connected to the oscillating weight, a second external sun gear connected to the gear train, a satellite gate connected to the mainspring, and three satellites. Since this differential device is inserted after the mainspring and before the last mobile of the finishing train, it participates both in the reduction of the winding train and in the multiplication of the gear train. Notwithstanding this simplification, the workings of this watch and in particular its finishing gear always incorporate a large number of mobiles.
  • the object of the present invention is primarily to increase the efficiency of the multiplier gear train by transmitting the driving force of the barrel to the exhaust. Another object of the invention is to reduce the number of wheels of the finishing gear of a mechanical watch movement and incidentally to allow to consider new aesthetic perspectives for a mechanical watch movement. Finally, a further object of the invention is to eliminate the wheels of the timer which also increases the efficiency and reduce the number of mobile and thus reduce the size of the wheels in a mechanical clockwork.
  • the present invention therefore relates to a finishing gear for a timepiece comprising a mechanical movement comprising a cylinder and an exhaust pinion which is distinguished by the fact that it comprises a train epicycloidal (also called planetary gearing) formed of a first and a second sun gear, a satellite gate and at least one satellite.
  • train epicycloidal also called planetary gearing
  • the first sun gear is rotated at a constant speed and preferably it is fixed relative to the frame of the movement, this constant speed being zero.
  • the satellite carrier comprises a wheel meshing directly with a toothing of the barrel, the at least one satellite comprises a wheel engaged with a second sun gear and a gear engaged with the first fixed sun gear, the second sun gear further comprising a kinematically connected wheel. at the exhaust pinion.
  • the wheel of the second sun gear is connected to the exhaust pinion by a single intermediate mobile.
  • the multiplication ratios of the work train are such that the planet carrier of the planetary gear train performs one revolution per hour.
  • the barrel of movement comprises a second toothing in direct contact with a wheel hours performing a turn in twelve hours.
  • the present invention relates to a finishing gear for a movement of a mechanical timepiece.
  • finishing gear hears the gear train connecting the gear wheel of the movement to the exhaust pinion of said watch movement.
  • finishing gear train comprises an epicyclic gear train, which makes it possible to achieve a large multiplication ratio with the aid of a few mobile units.
  • This planetary gear train comprises a satellite gate having a wheel in direct contact with a toothing of the watch movement cylinder.
  • This satellite carrier comprises at least one satellite comprising a pinion engaged with a first sun gear whose rotational speed is constant (preferably zero) during normal movement and a wheel engaged with a pinion of a second sun gear whose the wheel is directly or indirectly connected to the escape gear of the movement.
  • a peculiarity of this work-train lies in the fact that the numbers of teeth of the various mobiles that it comprises are determined as a function of the frequency of the regulating organ, for example a spiral balance, of the movement for the satellite gate to one turn per hour. As a result, this satellite door can directly carry the minute hand of the timepiece.
  • the mechanical clockwork movement comprises a barrel 1 pivoted on the platen of the movement, the drum of which comprises a first toothing 2 and a second toothing 3.
  • the movement also comprises a regulating member, not shown, cooperating with a mobile exhaust having an escape wheel 4 integral with an exhaust pinion 5 pivoted on the plate or a bridge of the movement.
  • the finishing gear of the clockwork movement which will now be described constitutes the kinematic connection between the escape pinion 5 and the first toothing 2 of the barrel 1.
  • This finishing train includes in the illustrated example an epicyclic gear train and an intermediate mobile.
  • the epicyclic gear comprises a first sun gear 6 formed of a ring gear with internal teeth which is fixed during the normal movement of the movement. It also comprises a second sun gear 7 pivoted on a fixed part of the movement concentrically to the first sun gear 6 and having a second sun gear 7.1 and a sun gear 7.2 second sun gear 7 acting as a sun gear in the epicyclic gear train.
  • This epicyclic gear train also comprises a satellite gate 8 having a satellite gate wheel 8.1 in direct contact with the first toothing 2 of the barrel 1, and at least one eccentric axis 8.2, parallel to the axis of rotation of the satellite gate wheel 8.1 around which is rotated a satellite 9 having a satellite gear 9.1 in engagement with the first sun gear 6 and a satellite wheel 9.2 meshing with the external toothing of the pinion 7.2 of the second sun gear 7.
  • the satellite gate 8 pivots concentrically and freely by relative to the sun gear 7 and to the axis 12 by means of a ball bearing, the inner ring 8.3 is integral with the satellite door 8 and the outer ring 8.4 is integral with the frame 0 of the movement.
  • the satellite gate 8 has two eccentric axes 8.2 each serving as a pivot to a satellite 9.
  • the finishing gear train also comprises an intermediate wheel 10, pivoted on a fixed part of the movement along an axis parallel to the axis of the epicyclic gear train, comprising a gear 10.1 engaged with the wheel 7.1 of the second sun gear 7 and a wheel 10.2 engaged with the exhaust pinion 5 of the clockwork movement.
  • this finishing gear is constructed so that the satellite carrier 8 performs a complete turn in one hour so that it can carry the minute hand of a time display of the timepiece equipped with such a finishing gear.
  • the finishing gear wheel further comprises a wheel 11 hours whose axis 12 extends concentrically through the axis of the second sun gear 7 and carries a hour hand of the hourly display of the coin d watchmaker equipped with this work train.
  • This hour wheel 11 meshes directly with the second toothing 3 of the barrel 1.
  • the bearing of the satellite door 8 is first mounted to the frame and subsequently the shaft of the sun gear 7 and after the axis 12 are mounted on the bridge side so that they pivot down in their respective bridges (fixed to the plate) and at the top in the satellite door 8.
  • Other mounting variants are of course possible.
  • the number of teeth of the second toothing 3 is 30 teeth and that of the hour wheel 11 of 120 teeth so that said hour wheel 11 performs one revolution in twelve hours.
  • the finishing gear train may not comprise an intermediate wheel 10, the wheel 7.1 of the second sun gear 7 then meshing directly with the escape pinion 5.
  • the number of teeth of the moving wheels of the epicyclic gear train would then be determined so that the satellite door 8 always makes one turn per hour. More generally, also depending on the torque available to the barrel and to provide exhaust, it would also be possible for the gear to understand two or more additional mobile.
  • the finishing train described above does not include a timer train which further reduces its size and increases the efficiency of said work train.
  • the sun gear 6, which in the example shown is fixed during normal movement, can be rotated by the user (for example when the movement stops) by means of an adjustment mechanism.
  • the time setting mechanism comprises a kinematic connection connecting the winding stem of the movement, when it is in the pulled-out position, to the first sun gear 6 rotatably mounted on the frame 0 of the movement.
  • a rotation of this winding stem in the setting position on time drives the satellite door 8 and thus the hour hand it carries.
  • the satellite gate 8 is turned during the time setting, the axis of the barrel 1 is rotated in one direction or the other. This barrel axis being connected to the hour hand, this allows the setting of the hours hand.
  • the speed of rotation of the satellite gate 8 is one revolution every two hours and the indication of the minutes comprises an index half-circle cooperating with a double needle, which always makes it possible to eliminate the clockwork.
  • the speed of rotation of the satellite door 8 is different, it is generally necessary to add the clock train for the display. In this case, in order to ensure that the associated time setting system operates, it is necessary to connect the timer train to the satellite door or upstream thereof.
  • the multiplication ratio between the second toothing 3 of the cylinder 1 and the hour wheel 11 may be such that the hour wheel 11 performed a complete revolution in twenty-four hours.
  • the first sun gear 6 is fixed during normal movement.
  • the epycycloidal train can be configured so that the first sun gear rotates at a constant speed during the normal movement, but generally zero speed is preferred for simplicity of realization.
  • it is essential that the first sun gear is not controlled by an external influence such as the movements of an oscillating weight.
  • first constant (and preferably fixed) external planetary gear 6 and a second internal sun gear 7 connected to the exhaust have been chosen for its ease of design and its gain. in space, other variants of the epicyclic gear are also possible.
  • two internal planetary or two external planetary can be used.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Gears, Cams (AREA)
  • Measurement Of Unknown Time Intervals (AREA)
  • Electromechanical Clocks (AREA)

Abstract

The structure has a frame (0), a barrel and an escapement pinion that are connected together by a going train. A stepping-up epicyclic train of the going train includes an external planet gear (6) with a constant rotational speed during normal operation of the structure, an internal planet gear (7) kinematically connected to the pinion, a satellite gear meshing with the planet gears, and a satellite carrier (8) kinematically connected to the barrel and carrying the satellite gear. The satellite carrier effects one full turn per hour. An independent claim is also included for a timepiece.

Description

La présente invention se rapporte au rouage de finissage d'une pièce d'horlogerie, c'est-à-dire au rouage reliant le barillet du mouvement mécanique d'horlogerie au pignon d'échappement de ce mouvement.The present invention relates to the work train of a timepiece, that is to say the wheel connecting the barrel of the mechanical clockwork movement to the exhaust pinion of this movement.

Le document FR 1 457 818 décrit une simplification du rouage utilisé dans une montre automatique. Selon ce document, la masse oscillante commande un dispositif différentiel actionnant, d'une part, directement le rouage de finissage et, d'autre part, le ressort moteur. Le dispositif différentiel comprend un engrenage planétaire différentiel comportant un premier planétaire interne relié à la masse oscillante, un second planétaire externe relié au rouage de finissage, un porte satellite relié au ressort moteur, et trois satellites. Puisque ce dispositif différentiel est inséré après le ressort moteur et avant le dernier mobile de rouage de finissage, il participe à la fois à la démultiplication du rouage de remontage et à la multiplication du rouage de finissage. Nonobstant cette simplification, le rouage de cette montre et notamment son rouage de finissage incorporent toujours un nombre important de mobiles.The document FR 1 457 818 describes a simplification of the gear used in an automatic watch. According to this document, the oscillating mass controls a differential device actuating, on the one hand, directly the work train and, on the other hand, the mainspring. The differential device comprises a differential planetary gear having a first internal sun gear connected to the oscillating weight, a second external sun gear connected to the gear train, a satellite gate connected to the mainspring, and three satellites. Since this differential device is inserted after the mainspring and before the last mobile of the finishing train, it participates both in the reduction of the winding train and in the multiplication of the gear train. Notwithstanding this simplification, the workings of this watch and in particular its finishing gear always incorporate a large number of mobiles.

Le but de la présente invention est principalement d'augmenter le rendement du train d'engrenage multiplicateur en transmettant la force motrice du barillet à l'échappement. Un autre but de l'invention est de réduire le nombre de mobiles du rouage de finissage d'un mouvement d'horlogerie mécanique et accessoirement de permettre d'envisager de nouvelles perspectives esthétiques pour un mouvement d'horlogerie mécanique. Enfin, un but supplémentaire de l'invention est de supprimer les rouages de la minuterie ce qui permet également d'augmenter le rendement et de diminuer le nombre de mobiles et donc de réduire l'encombrement des rouages dans un mouvement d'horlogerie mécanique.The object of the present invention is primarily to increase the efficiency of the multiplier gear train by transmitting the driving force of the barrel to the exhaust. Another object of the invention is to reduce the number of wheels of the finishing gear of a mechanical watch movement and incidentally to allow to consider new aesthetic perspectives for a mechanical watch movement. Finally, a further object of the invention is to eliminate the wheels of the timer which also increases the efficiency and reduce the number of mobile and thus reduce the size of the wheels in a mechanical clockwork.

La présente invention a donc pour objet un rouage de finissage pour pièce d'horlogerie comportant un mouvement mécanique comportant un barillet et un pignon d'échappement qui se distingue par le fait qu'il comporte un train épicycloïdal (aussi appellé engrénage planétaire) formé d'un premier et d'un second planétaire, d'un porte satellite et d'au moins un satellite.The present invention therefore relates to a finishing gear for a timepiece comprising a mechanical movement comprising a cylinder and an exhaust pinion which is distinguished by the fact that it comprises a train epicycloidal (also called planetary gearing) formed of a first and a second sun gear, a satellite gate and at least one satellite.

Le premier planétaire est entraîné en rotation à une vitesse constante et de préférence il est fixe par rapport au bâti du mouvement, cette vitesse constante étant nulle. Le porte satellite comporte une roue engrenant directement avec une denture du barillet, le au moins un satellite comporte une roue en prise avec un pignon du second planétaire et un pignon en prise avec le premier planétaire fixe, le second planétaire comportant encore une roue reliée cinématiquement au pignon d'échappement.The first sun gear is rotated at a constant speed and preferably it is fixed relative to the frame of the movement, this constant speed being zero. The satellite carrier comprises a wheel meshing directly with a toothing of the barrel, the at least one satellite comprises a wheel engaged with a second sun gear and a gear engaged with the first fixed sun gear, the second sun gear further comprising a kinematically connected wheel. at the exhaust pinion.

Dans une forme d'exécution particulière du rouage de finissage la roue du second planétaire est reliée au pignon d'échappement par un seul mobile intermédiaire.In a particular embodiment of the work train the wheel of the second sun gear is connected to the exhaust pinion by a single intermediate mobile.

De préférence, les rapports de multiplication du rouage de finissage sont tels que le porte satellite du train épicycloïdal effectue un tour par heure.Preferably, the multiplication ratios of the work train are such that the planet carrier of the planetary gear train performs one revolution per hour.

Enfin, dans une réalisation particulière le barillet du mouvement comporte une seconde denture en prise directe avec une roue des heures effectuant un tour en douze heures.Finally, in a particular embodiment, the barrel of movement comprises a second toothing in direct contact with a wheel hours performing a turn in twelve hours.

Le dessin annexé illustre schématiquement et à titre d'exemple une forme d'exécution particulière du rouage de finissage selon l'invention.

  • La figure 1 est une représentation schématique du barillet, du pignon d'échappement d'un mouvement mécanique d'horlogerie et du rouage de finition selon l'invention.
  • La figure 2 est une vue en perspective du train épicycloïdal du rouage de finissage.
  • La figure 3 est une coupe passant par l'axe du train épicycloïdal du rouage de finissage.
The accompanying drawing illustrates schematically and by way of example a particular embodiment of the finishing train according to the invention.
  • The figure 1 is a schematic representation of the barrel, the exhaust pinion of a clockwork mechanical movement and the work train according to the invention.
  • The figure 2 is a perspective view of the epicyclic gear train of the finishing train.
  • The figure 3 is a section passing through the axis of the epicyclic gear train of the finishing gear.

La présente invention a pour objet un rouage de finissage pour un mouvement d'une pièce d'horlogerie mécanique. Par rouage de finissage on entend le rouage reliant le barillet de rouage du mouvement au pignon d'échappement dudit mouvement d'horlogerie.The present invention relates to a finishing gear for a movement of a mechanical timepiece. By finishing gear hears the gear train connecting the gear wheel of the movement to the exhaust pinion of said watch movement.

La particularité du rouage de finissage selon l'invention réside dans le fait qu'il comporte un train épicycloïdal, ce qui permet de réaliser un grand rapport de multiplication à l'aide de peu de mobiles.The particularity of the finishing gear train according to the invention lies in the fact that it comprises an epicyclic gear train, which makes it possible to achieve a large multiplication ratio with the aid of a few mobile units.

Ce train épicycloïdal comporte un porte satellite présentant une roue en prise directe avec une denture du barillet du mouvement d'horlogerie. Ce porte satellite comporte au moins un satellite comportant un pignon en prise avec un premier planétaire dont la vitesse de rotation est constante (de préférence nulle) lors de la marche normale du mouvement et une roue en prise avec un pignon d'un second planétaire dont la roue est directement ou indirectement reliée au pignon d'échappement du mouvement.This planetary gear train comprises a satellite gate having a wheel in direct contact with a toothing of the watch movement cylinder. This satellite carrier comprises at least one satellite comprising a pinion engaged with a first sun gear whose rotational speed is constant (preferably zero) during normal movement and a wheel engaged with a pinion of a second sun gear whose the wheel is directly or indirectly connected to the escape gear of the movement.

Une particularité de ce rouage de finissage réside dans le fait que les nombres de dents des différents mobiles qu'il comporte sont déterminés en fonction de la fréquence de l'organe réglant, par exemple un balancier spiral, du mouvement pour que le porte satellite effectue un tour par heure. De ce fait, ce porte satellite peut porter directement l'aiguille des minutes de la pièce d'horlogerie.A peculiarity of this work-train lies in the fact that the numbers of teeth of the various mobiles that it comprises are determined as a function of the frequency of the regulating organ, for example a spiral balance, of the movement for the satellite gate to one turn per hour. As a result, this satellite door can directly carry the minute hand of the timepiece.

Ceci permet alors, en prévoyant une seconde denture sur le barillet engrenant avec une roue des heures, de supprimer la minuterie traditionnelle du mouvement d'horlogerie.This then makes it possible, by providing a second toothing on the barrel meshing with a wheel hours, to remove the traditional timer of the watch movement.

II apparaît donc clairement qu'un tel rouage de finissage comporte un nombre réduit de mobiles ce qui permet d'augmenter significativement le rendement du rouage de finissage et d'en diminuer l'encombrement.It therefore clearly appears that such a crawler train comprises a reduced number of mobiles, which makes it possible to significantly increase the efficiency of the finishing gear train and to reduce its bulk.

Se référant au dessin annexé on voit que le mouvement d'horlogerie mécanique comporte un barillet 1 pivoté sur la platine du mouvement dont le tambour comporte une première denture 2 et une deuxième denture 3. Le mouvement comporte encore un organe réglant, non illustré, coopérant avec un mobile d'échappement présentant une roue d'échappement 4 solidaire d'un pignon d'échappement 5 pivoté sur la platine ou un pont du mouvement.Referring to the appended drawing, it can be seen that the mechanical clockwork movement comprises a barrel 1 pivoted on the platen of the movement, the drum of which comprises a first toothing 2 and a second toothing 3. The movement also comprises a regulating member, not shown, cooperating with a mobile exhaust having an escape wheel 4 integral with an exhaust pinion 5 pivoted on the plate or a bridge of the movement.

Le rouage de finition du mouvement d'horlogerie qui va être décrit maintenant constitue la liaison cinématique entre le pignon d'échappement 5 et la première denture 2 du barillet 1.The finishing gear of the clockwork movement which will now be described constitutes the kinematic connection between the escape pinion 5 and the first toothing 2 of the barrel 1.

Ce rouage de finissage comporte dans l'exemple illustré un train épicycloïdal et un mobile intermédiaire.This finishing train includes in the illustrated example an epicyclic gear train and an intermediate mobile.

Dans l'exemple illustré, le train épicycloïdal comporte un premier planétaire 6 formé d'une couronne à denture intérieure qui est fixe lors de la marche normale du mouvement. Il comporte encore un second planétaire 7 pivoté sur une partie fixe du mouvement concentriquement au premier planétaire 6 et présentant une roue 7.1 de second planétaire 7 et un pignon 7.2 de second planétaire 7 agissant comme une roue solaire dans le train épicycloïdal.In the illustrated example, the epicyclic gear comprises a first sun gear 6 formed of a ring gear with internal teeth which is fixed during the normal movement of the movement. It also comprises a second sun gear 7 pivoted on a fixed part of the movement concentrically to the first sun gear 6 and having a second sun gear 7.1 and a sun gear 7.2 second sun gear 7 acting as a sun gear in the epicyclic gear train.

Ce train épicycloïdal comporte encore un porte satellite 8 présentant une roue de porte satellite 8.1 en prise directe avec la première denture 2 du barillet 1, et au moins un axe excentré 8.2, parallèle à l'axe de rotation de la roue de porte satellite 8.1, autour duquel est pivoté un satellite 9 présentant un pignon de satellite 9.1 en prise avec le premier planétaire 6 et une roue de satellite 9.2 en prise avec la denture extérieure du pignon 7.2 du second planétaire 7. Le porte satellite 8 pivote concentriquement et librement par rapport au planétaire 7 et à l'axe 12 par le biais d'un roulement à billes, dont la bague intérieure 8.3 est solidaire du porte satellite 8 et la bague extérieure 8.4 est solidaire du bâti 0 du mouvement. Dans l'exemple illustré, le porte satellite 8 comporte deux axes excentrés 8.2 servant chacun de pivot à un satellite 9.This epicyclic gear train also comprises a satellite gate 8 having a satellite gate wheel 8.1 in direct contact with the first toothing 2 of the barrel 1, and at least one eccentric axis 8.2, parallel to the axis of rotation of the satellite gate wheel 8.1 around which is rotated a satellite 9 having a satellite gear 9.1 in engagement with the first sun gear 6 and a satellite wheel 9.2 meshing with the external toothing of the pinion 7.2 of the second sun gear 7. The satellite gate 8 pivots concentrically and freely by relative to the sun gear 7 and to the axis 12 by means of a ball bearing, the inner ring 8.3 is integral with the satellite door 8 and the outer ring 8.4 is integral with the frame 0 of the movement. In the example shown, the satellite gate 8 has two eccentric axes 8.2 each serving as a pivot to a satellite 9.

Dans l'exemple illustré, le rouage de finissage comporte encore un mobile intermédiaire 10, pivoté sur une partie fixe du mouvement suivant un axe parallèle à l'axe du train épicycloïdal, comportant un pignon 10.1 en prise avec la roue 7.1 du second planétaire 7 et une roue 10.2 en prise avec le pignon d'échappement 5 du mouvement d'horlogerie.In the example illustrated, the finishing gear train also comprises an intermediate wheel 10, pivoted on a fixed part of the movement along an axis parallel to the axis of the epicyclic gear train, comprising a gear 10.1 engaged with the wheel 7.1 of the second sun gear 7 and a wheel 10.2 engaged with the exhaust pinion 5 of the clockwork movement.

Avantageusement, ce rouage de finissage est construit de manière à ce que le porte satellite 8 effectue un tour complet en une heure de sorte que celui-ci peut porter l'aiguille des minutes d'un affichage horaire de la pièce d'horlogerie équipée d'un tel rouage de finissage.Advantageously, this finishing gear is constructed so that the satellite carrier 8 performs a complete turn in one hour so that it can carry the minute hand of a time display of the timepiece equipped with such a finishing gear.

Dans l'exemple illustré et pour obtenir une rotation d'un tour par heure du porte satellite 8 le nombre de dents des divers mobiles du rouage de finissage sont, pour un organe réglant d'une fréquence de 4 Hz, comme indiqué ci-dessous à titre d'exemple non limitatif :

  • première denture 2 du barillet 1, 123 dents
  • roue 8.2 de porte satellite 8, 41 dents
  • roue 9.2 de satellite 9, 88 dents
  • pignon 9.1 de satellite 9, 22 dents
  • couronne 6 de premier planétaire, 132 dents
  • pignon 7.2 de second planétaire 7, 22 dents
  • roue 7.1 de second planétaire 7, 88 dents
  • pignon 10.1 de mobile intermédiaire 10, 20 dents
  • roue 10.2 de mobile intermédiaire 10, 112 dents
  • pignon d'échappement 5, 21 dents
  • roue d'échappement 4, 20 dents
In the illustrated example and to obtain a rotation of one turn per hour of the satellite gate 8 the number of teeth of the various mobile wheels of the finishing train are, for a regulating organ of a frequency of 4 Hz, as indicated below as a non-limitative example:
  • first toothing 2 of the barrel 1, 123 teeth
  • 8.2 door wheel 8, 41 teeth
  • 9.2 satellite 9 wheel, 88 teeth
  • 9.1 gear 9 satellite, 22 teeth
  • crown 6 of first sun gear, 132 teeth
  • 7.2 pinion of second sun gear 7, 22 teeth
  • 7.1 second wheel 7, 88 teeth
  • pinion 10.1 of intermediate mobile 10, 20 teeth
  • 10.2 intermediate wheel 10, 112 teeth
  • exhaust pinion 5, 21 teeth
  • escape wheel 4, 20 teeth

Un tel rouage de finissage ne comporte que peu de mobiles du fait du rapport de multiplication élevé du train épicycloïdal ce qui permet d'en réduire l'encombrement ainsi que sa consommation d'énergie.Such a work train has only few moving because of the high multiplication ratio of the epicyclic gear which reduces its size and its energy consumption.

Dans l'exemple illustré le rouage de finissage comporte encore une roue des heures 11 dont l'axe 12 s'étend concentriquement au travers de l'axe du second planétaire 7 et porte une aiguille des heures de l'affichage horaire de la pièce d'horlogerie équipée de ce rouage de finissage. Cette roue des heures 11 engrène directement avec la seconde denture 3 du barillet 1. Dans cet exemple, le roulement du porte satellite 8 est d'abord monté au bâti et par la suite l'arbre du planétaire 7 et après l'axe 12 sont montés côté pont afin qu'ils pivotent en bas dans leurs ponts respectifs (fixé à la platine) et en haut dans le porte satellite 8. D'autres variantes de montage sont bien entendu possibles.In the illustrated example, the finishing gear wheel further comprises a wheel 11 hours whose axis 12 extends concentrically through the axis of the second sun gear 7 and carries a hour hand of the hourly display of the coin d watchmaker equipped with this work train. This hour wheel 11 meshes directly with the second toothing 3 of the barrel 1. In this example, the bearing of the satellite door 8 is first mounted to the frame and subsequently the shaft of the sun gear 7 and after the axis 12 are mounted on the bridge side so that they pivot down in their respective bridges (fixed to the plate) and at the top in the satellite door 8. Other mounting variants are of course possible.

Dans le cas de l'exemple particulier indiqué plus haut, le nombre de dents de la seconde denture 3 est de 30 dents et celui de la roue des heures 11 de 120 dents pour que ladite roue des heures 11 effectue un tour en douze heures.In the case of the particular example indicated above, the number of teeth of the second toothing 3 is 30 teeth and that of the hour wheel 11 of 120 teeth so that said hour wheel 11 performs one revolution in twelve hours.

Dans une variante, le rouage de finissage pourrait ne pas comporter de mobile intermédiaire 10, la roue 7.1 du seconde planétaire 7 engrenant alors directement avec le pignon d'échappement 5. Le nombre de dents des mobiles du train épicycloïdal serait alors déterminé pour que le porte satellite 8 effectue toujours un tour par heure. Plus généralement, en fonction également du couple disponible au barillet et à fournir à l'échappement, il serait également possible pour le rouage de comprendre deux ou plusieurs mobiles supplémentaires. Il est à remarquer que le rouage de finissage décrit ci-dessus ne comporte pas de rouage de minuterie ce qui réduit encore son encombrement et augmente le rendement dudit rouage de finissage. Pour effectuer une mise-à-l'heure de l'affichage horaire le planétaire 6, qui, dans l'exemple illustré, est fixe lors de la marche normale du mouvement, peut être commandé en rotation par l'utilisateur (par exemple quand le mouvement s'arrête) par le biais d'un mécanisme de mise-à-l'heure.In a variant, the finishing gear train may not comprise an intermediate wheel 10, the wheel 7.1 of the second sun gear 7 then meshing directly with the escape pinion 5. The number of teeth of the moving wheels of the epicyclic gear train would then be determined so that the satellite door 8 always makes one turn per hour. More generally, also depending on the torque available to the barrel and to provide exhaust, it would also be possible for the gear to understand two or more additional mobile. It should be noted that the finishing train described above does not include a timer train which further reduces its size and increases the efficiency of said work train. To carry out an update of the time display, the sun gear 6, which in the example shown is fixed during normal movement, can be rotated by the user (for example when the movement stops) by means of an adjustment mechanism.

Le mécanisme de mise à l'heure comporte une liaison cinématique reliant la tige de remontoir du mouvement, lorsqu'elle est en position tirée de mise à l'heure, au premier planétaire 6 monté rotatif sur le bâti 0 du mouvement. Ainsi une rotation de cette tige de remontoir en position de mise à l'heure entraîne le porte satellite 8 et donc l'aiguille des heures qu'il porte. Lorsque l'on fait tourner le porte satellite 8 lors de la mise à l'heure, l'axe du barillet 1 est entraîné en rotation dans un sens ou dans l'autre. Cet axe de barillet étant relié à l'aiguille des heures, ceci permet la mise à l'heure de l'aiguille des heures.The time setting mechanism comprises a kinematic connection connecting the winding stem of the movement, when it is in the pulled-out position, to the first sun gear 6 rotatably mounted on the frame 0 of the movement. Thus a rotation of this winding stem in the setting position on time drives the satellite door 8 and thus the hour hand it carries. When the satellite gate 8 is turned during the time setting, the axis of the barrel 1 is rotated in one direction or the other. This barrel axis being connected to the hour hand, this allows the setting of the hours hand.

Pour éviter le dévidement et le rechargement du ressort de barillet lors de la mise à l'heure, on peut dans une variante prévoir un système de débrayage entre le mobile qui engrène avec d'une part le porte satellite 8 et le mobile des heures 11 et d'autre part le ressort de barillet.To avoid the unwinding and reloading of the mainspring during the time setting, it is possible in a variant to provide a disengagement system between the mobile which meshes with firstly the satellite door 8 and the mobile hours 11 and secondly the mainspring.

Dans une variante, la vitesse de rotation du porte satellite 8 est un tour tous les deux heures et l'indication des minutes comprend un demi-cercle d'index coopérant avec une double aiguille, ce qui permet toujours de supprimer le rouage de minuterie. Cependant, dans d'autres variantes où la vitesse de rotation du porte satellite 8 est différente, il est généralement nécessaire de rajouter le rouage de minuterie pour l'affichage. Dans ce cas, afin de s'assurer que le système de mise à l'heure associé fonctionne il est nécessaire de connecter le rouage de minuterie sur le porte satellite ou en amont de ce dernier.In one variant, the speed of rotation of the satellite gate 8 is one revolution every two hours and the indication of the minutes comprises an index half-circle cooperating with a double needle, which always makes it possible to eliminate the clockwork. However, in other variants where the speed of rotation of the satellite door 8 is different, it is generally necessary to add the clock train for the display. In this case, in order to ensure that the associated time setting system operates, it is necessary to connect the timer train to the satellite door or upstream thereof.

Dans une autre variante du rouage de finissage, le rapport de multiplication entre la seconde denture 3 du barillet 1 et la roue des heures 11 peut être tel que cette roue des heures 11 effectué un tour complet en vingt-quatre heures.In another variant of the work train, the multiplication ratio between the second toothing 3 of the cylinder 1 and the hour wheel 11 may be such that the hour wheel 11 performed a complete revolution in twenty-four hours.

Comme décrit ci-dessus, le premier planétaire 6 est fixe lors de la marche normale du mouvement. Dans des variantes, le train epycycloidal peut être configuré afin que le premier planétaire tourne à une vitesse constante lors de la marche normale du mouvement, mais en général une vitesse nulle est privilégiée pour la simplicité de la réalisation. En tous les cas, il est essentiel que le premier planétaire ne soit pas piloté par une influence extérieure telle que les mouvements d'une masse oscillante.As described above, the first sun gear 6 is fixed during normal movement. In variants, the epycycloidal train can be configured so that the first sun gear rotates at a constant speed during the normal movement, but generally zero speed is preferred for simplicity of realization. In any case, it is essential that the first sun gear is not controlled by an external influence such as the movements of an oscillating weight.

Bien que dans la forme d'exécution illustrée, la configuration d'un premier planétaire externe 6 de vitesse constante (et de préférence fixe) et un second planétaire interne 7 relié à l'échappement a été choisi pour sa facilité de conception et son gain en encombrement, d'autres variantes du train épicycloïdal sont également possibles. Par exemple, deux planétaires internes ou deux planétaires externes peuvent être utilisés. On peut avoir un train épicycloïdal avec deux planétaires internes, sans planétaire externe, ou avec deux planétaires externes, sans planétaire interne. De plus, il serait possible de mettre un premier planétaire de vitesse constante (de préférence fixe) en interne et un second planétaire relié à l'échappement en externe.Although in the illustrated embodiment, the configuration of a first constant (and preferably fixed) external planetary gear 6 and a second internal sun gear 7 connected to the exhaust have been chosen for its ease of design and its gain. in space, other variants of the epicyclic gear are also possible. For example, two internal planetary or two external planetary can be used. One can have an epicyclic train with two internal planetary, without external sun gear, or with two external sun gear, without internal sun gear. In addition, it would be possible to put a first planetary constant speed (preferably fixed) internally and a second sun gear connected to the exhaust externally.

Claims (13)

Rouage de finissage pour pièce d'horlogerie comportant un mouvement mécanique comprenant un bâti (0), un barillet (1) et un pignon d'échappement (5) reliés par ledit rouage de finissage, caractérisé par le fait qu'il comporte un train épicycloïdal multiplicateur comprenant un premier planétaire (6) ayant une vitesse de rotation constante lors de la marche normale du mouvement, un second planétaire (7) relié cinématiquement au pignon d'échappement (5), au moins un satellite (9) engrenant chacun avec le premier planétaire (6) et le second planétaire (7), et un porte satellite (8) relié cinématiquement au barillet (1) et portant le ou les satellites (9).Finishing wheel for a timepiece comprising a mechanical movement comprising a frame (0), a cylinder (1) and an escape gear (5) connected by said finishing train, characterized in that it comprises a train epicyclic multiplier comprising a first sun gear (6) having a constant speed of rotation during normal movement, a second sun gear (7) kinematically connected to the exhaust pinion (5), at least one satellite (9) meshing each with the first sun gear (6) and the second sun gear (7), and a satellite door (8) kinematically connected to the cylinder (1) and carrying the satellite or satellites (9). Rouage de finissage selon la revendication 1, caractérisé par le fait que le premier planétaire (6) comprend une couronne ayant une denture intérieure engrenant avec chaque satellite (9) et par le fait que le second planétaire (7) comprend une roue à denture extérieure engrenant avec chaque satellite (9).Finishing wheel according to Claim 1, characterized in that the first sun gear (6) comprises a ring having an internal toothing meshing with each satellite (9) and in that the second sun gear (7) comprises an external gear wheel. meshing with each satellite (9). Rouage de finissage selon la revendication 1 ou 2, caractérisé par le fait que le porte satellite (8) comporte une roue de porte satellite (8.1) engrenant directement avec une première denture (2) du barillet (1).Finishing gear according to claim 1 or 2, characterized in that the satellite gate (8) comprises a satellite gate wheel (8.1) meshing directly with a first toothing (2) of the barrel (1). Rouage de finissage selon la revendication 3, caractérisé par le fait que chaque satellite (9) comporte un pignon de satellite (9.1) en prise avec le premier planétaire (6) et une roue de satellite (9.2) en prise avec un pignon (7.2) du second planétaire (7), ce second planétaire (7) comportant une roue de second planétaire (7.1) reliée cinématiquement au pignon d'échappement (5) du mouvement.Finishing gear according to Claim 3, characterized in that each satellite (9) comprises a satellite pinion (9.1) in engagement with the first sun gear (6) and a satellite wheel (9.2) meshing with a pinion (7.2) of the second sun gear (7), this second sun gear (7) comprising a second sun gear (7.1) connected kinematically to the exhaust pinion (5) of the movement. Rouage de finissage selon la revendication 4, caractérisé par le fait que le porte satellite (8) porte deux satellites (9).Finishing gear according to claim 4, characterized in that the satellite carrier (8) carries two satellites (9). Rouage de finissage selon l'une des revendications précédentes, caractérisé par le fait qu'il comporte encore au moins un mobile intermédiaire (10) entre la roue (7.1) du second planétaire (7) et le pignon d'échappement (5) du mouvement.Finishing gear according to one of the preceding claims, characterized in that it also comprises at least one intermediate wheel (10) between the wheel (7.1) of the second sun gear (7) and the exhaust pinion (5) of the movement. Rouage de finissage selon l'une des revendications précédentes, caractérisé par le fait que le porte satellite (8) effectue un tour complet par heure.Finishing gear according to one of the preceding claims, characterized in that the satellite carrier (8) performs a complete revolution per hour. Rouage de finissage selon l'une des revendications précédentes, caractérisé par le fait qu'il comporte encore une roue des heures (11) portée par un axe traversant coaxialement le train épicycloïdal, cette roue des heures étant en prise directe avec une seconde denture (3) du barillet (1) du mouvement et effectuant un tour complet en douze heures ou en vingt quatre heures.Finishing wheel according to one of the preceding claims, characterized in that it also comprises an hour wheel (11) carried by a shaft coaxially traversing the epicyclic gear, this hour wheel being in direct contact with a second toothing ( 3) of the barrel (1) of the movement and performing a complete turn in twelve hours or twenty-four hours. Rouage de finissage selon l'une des revendications précédentes, caractérisé par le fait que le premier planétaire (6) a une vitesse nulle et est alors fixe par rapport au bâti (0) du mouvement lors de la marche normale du mouvement.Finishing wheel according to one of the preceding claims, characterized in that the first sun gear (6) has a zero speed and is then fixed relative to the frame (0) of the movement during normal movement. Rouage de finissage selon l'une des revendications 1 à 9, caractérisé par le fait que le premier planétaire (6) est monté rotatif sur le bâti (0) du mouvement et qu'il est relié cynématiquement à une tige de remontoir que comporte ledit mouvement lorsque cette tige de remontoir est en position de mise à l'heure.Finishing wheel according to one of claims 1 to 9, characterized in that the first sun gear (6) is rotatably mounted on the frame (0) movement and is cynematically connected to a winding stem that includes movement when this winding stem is in the time setting position. Pièce d'horlogerie comportant un mouvement mécanique comprenant un barillet (1) et un pignon d'échappement (5), caractérisé par le fait qu'il comporte un rouage de finissage selon l'une des revendications précédentes.Timepiece comprising a mechanical movement comprising a cylinder (1) and an exhaust pinion (5), characterized in that it comprises a finishing gear according to one of the preceding claims. Pièce d'horlogerie selon la revendication 11, caractérisé par le fait qu'elle comporte un affichage horaire comportant une aiguille des minutes portée par le porte satellite (8) du train épicycloïdal du rouage de finissage.Timepiece according to claim 11, characterized in that it comprises a time display comprising a minute hand carried by the planet carrier (8) of the epicyclic gear train of the finishing train. Pièce d'horlogerie selon la revendication 12, caractérisé par le fait que l'affichage horaire comporte une aiguille des heures entraînée par une roue des heures (11) engrenant directement avec une seconde denture (3) du barillet (1) du mouvement.Timepiece according to claim 12, characterized in that the time display comprises an hour hand driven by an hour wheel (11) meshing directly with a second toothing (3) of the barrel (1) of the movement.
EP11003306.5A 2011-04-20 2011-04-20 Räderwerk für Uhr Active EP2515186B1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP11003306.5A EP2515186B1 (en) 2011-04-20 2011-04-20 Räderwerk für Uhr
JP2012108887A JP6016447B2 (en) 2011-04-20 2012-04-19 Clock train for timer
US13/450,506 US8737176B2 (en) 2011-04-20 2012-04-19 Going train for a timepiece
CN201210118300.0A CN102749835B (en) 2011-04-20 2012-04-20 The going train of clock and watch
HK12110956.7A HK1170316A1 (en) 2011-04-20 2012-10-31 Gear-train for timepiece

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EP11003306.5A EP2515186B1 (en) 2011-04-20 2011-04-20 Räderwerk für Uhr

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EP3667435B1 (en) * 2018-12-10 2022-06-01 Montres Breguet S.A. System for adjusting the position of a first toothed moving part relative to a support on which the first toothed moving part is pivotably mounted, and timepiece comprising such a system
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EP3944026A1 (en) 2020-07-21 2022-01-26 Rolex Sa Timepiece mechanism with counting chain

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EP2515186B1 (en) 2014-06-11
JP2012225931A (en) 2012-11-15
HK1170316A1 (en) 2013-02-22
US8737176B2 (en) 2014-05-27
JP6016447B2 (en) 2016-10-26
CN102749835A (en) 2012-10-24
CN102749835B (en) 2017-03-01
US20120269044A1 (en) 2012-10-25

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