EP1970778A1 - Timepiece comprising a device indicating the power reserve - Google Patents

Timepiece comprising a device indicating the power reserve Download PDF

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Publication number
EP1970778A1
EP1970778A1 EP07104055A EP07104055A EP1970778A1 EP 1970778 A1 EP1970778 A1 EP 1970778A1 EP 07104055 A EP07104055 A EP 07104055A EP 07104055 A EP07104055 A EP 07104055A EP 1970778 A1 EP1970778 A1 EP 1970778A1
Authority
EP
European Patent Office
Prior art keywords
barrel
gear
input
timepiece according
power reserve
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
EP07104055A
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German (de)
French (fr)
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EP1970778B1 (en
Inventor
Alain Zaugg
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 Breguet SA
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Montres Breguet 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 Breguet SA filed Critical Montres Breguet SA
Priority to EP07104055A priority Critical patent/EP1970778B1/en
Priority to AT07104055T priority patent/ATE443282T1/en
Priority to DE602007002471T priority patent/DE602007002471D1/en
Priority to US12/043,342 priority patent/US7490977B2/en
Priority to JP2008059047A priority patent/JP5436788B2/en
Priority to CN2008100864408A priority patent/CN101281386B/en
Publication of EP1970778A1 publication Critical patent/EP1970778A1/en
Application granted granted Critical
Publication of EP1970778B1 publication Critical patent/EP1970778B1/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
    • G04B9/00—Supervision of the state of winding, e.g. indicating the amount of winding

Definitions

  • the present invention relates to a timepiece comprising a power reserve indicator device, that is to say a device for indicating to the wearer the degree of winding of the mainspring of a mechanical timepiece. .
  • Timepieces comprising devices for providing this power reserve indication are designed to take into account the rotation of the ratchet wheel during the winding of the mainspring as well as the rotation of the barrel during disarming of the spring. barrel.
  • most of these known devices implement a differential gear.
  • a device of this type is described, for example, in the patent EP 1 074 897 wherein the two inputs of the differential gear are respectively connected to the toothing of the barrel drum and that of the ratchet wheel, the output of the differential gear being connected to an indicator member.
  • Utility model is also known DE1638800U a power reserve indicator device utilizing a dual satellite planar differential gear disposed between the barrel bridge and the barrel cover to eliminate the gear reduction and disarming gearing.
  • the reduction ratio offered by this type of differential gearing does not make it possible to display the power reserve over a slightly extended arc, for example of the order of 30 ° without a display reduction gear.
  • this power reserve device has a limited footprint in the plane, it has a large footprint that hinders its height in its movement in small thickness.
  • the present invention aims to remedy the problems and disadvantages above and others by proposing a timepiece comprising a power reserve indicator device having a small footprint in the plane and height as well as a great simplicity of construction by creating a more judicious arrangement of the elements of the power reserve indicator device.
  • Another object of the invention is also to provide a timepiece comprising a power reserve indication device to limit or even eliminate the gearing reduction, arming, disarming and display of the power reserve.
  • Another object of the invention is also to provide a timepiece comprising a power reserve indication device having an improved accuracy of the display of the power reserve.
  • Yet another object of the invention is to provide a timepiece comprising a power reserve indication device for displaying without gear reduction, the power reserve on a circular arc less than 30 °.
  • the present invention relates to a timepiece comprising a movement provided with a power reserve indicator device, said timepiece comprising a barrel closed by a cover, a spring housed in this barrel and connected respectively to a barrel shaft and said cylinder, a finishing train driven by said barrel and means for winding said spring, said indicator device comprising a differential gear kinematically connected by a first input to the barrel shaft, by a second input to the barrel shaft; barrel and through an output to a power reserve indicator and wherein the differential gear housing is arranged coaxially with the barrel shaft, characterized in that the second differential gear input is secured to the gear cover.
  • the output of the differential gear is formed by a ring gear with internal teeth
  • the ring gear internal teeth is kinematically connected to the first input by at least a first and second satellite mobiles meshing with each other and in that the at least two satellite mobiles are carried by the cover.
  • the present invention provides a compact and simple power-reserve indicating device which can minimize the reduction of arming and disarming workings.
  • This solution also provides a power reserve indicator at least partially integrated into the lid or the bottom of the barrel, which significantly reduces its size.
  • the indicator member is directly carried by said ring gear to form the output of the differential gear.
  • This embodiment makes it possible to eliminate the display reduction gear in the sense that the display member of the power reserve is integrated with the differential gear.
  • FIG. 1 to 5 partially illustrate a timepiece of the wristwatch type for example, equipped with a power reserve indicator device according to the present invention and generally designated by the general numerical reference 1.
  • the watch comprises a watch movement M comprising a plate P on which is mounted a cylinder 2 in which is housed a cylinder spring 4.
  • the cylinder 2 conventionally comprises a drum 6 closed by a cover 8 and a bottom 10.
  • the cylinder 2 is freely rotatably mounted on the 12 barrel shaft secured to the bung 14.
  • the spring 4 is hooked by its inner end to the plug 14 and its outer end to the inner wall of the drum 6.
  • the barrel 2 is conventionally mounted between the plate P of the movement and a bridge 3 comprising a central portion 3a from which extend a bridge branch 3b and a bridge branch 3c.
  • the power reserve indicator device 1 is applied a cylinder associated with a rocket F also mounted on the plate P via the bridge arm 3c.
  • a chain C of which only one link is shown in the drawing, is attached by a first end to the barrel drum 6.
  • the chain C is progressively wound on the drum 6 from the rocket F to which it is fixed by a second end during disarming of the barrel.
  • the rocket F is conventionally associated with a ratchet R and comprises a toothed portion D engaged on the one hand with a work train and on the other hand with a winding train.
  • the barrel shaft 12 is fixed relative to the plate of the movement P.
  • the barrel shaft 12 is mounted between the plate P and the bridge leg 3b.
  • the bridge arm 3b also bears on its face disposed opposite the cover 8 a toothed wheel 16 forming a first input of a differential gear which will be described in more detail below.
  • the toothed wheel 16 is frictionally mounted on the branch of the bridge 3b by means of a spring ring 17 secured to the bridge branch 3b.
  • the second input of the differential gear is formed by the barrel 4 and more precisely by the cover 8 integral with the drum 6 which can pivot around the barrel shaft 12 with the barrel when the barrel disarms.
  • the cover 8 which thus forms the frame of the differential gear is thus arranged coaxially with the barrel shaft.
  • the cover 8 carries a first satellite mobile 18 comprising a first wheel 18a and a second wheel 18b coaxial with the wheel 18a.
  • the wheel 18a is engaged with the wheel 16 while the wheel 18b is engaged with a second satellite mobile 20 which is in turn engaged with a movable ring gear 22 which forms the output of the differential gear.
  • the crown 22 carries a display member formed of a power reserve needle 24 which, depending on the relative position it occupies with respect to a mark 26 carried by the plate P via a foot 26a, indicates carrying the power reserve available according to the number of winding turns of the mainspring.
  • the power reserve indication device further comprises means 28, 30 for limiting the angular travel of the internal gear wheel 22 so that the needle 24 moves between two positions of fixed and defined extreme arming and disarming corresponding to the degrees of arming respectively extreme disarming of the mark 26.
  • the limiting means 28, 30 comprise in the illustrated example three studs 28 integral with the bridge 3, the studs 28 moving each in an opening 30 formed in the internal gear wheel 22.
  • the openings 30 are outwardly open cuts formed in the circumferential periphery of the wheel 22, these openings 30 each defining two radial abutment surfaces 30a and 30b for the stud 28 associated with it.
  • the barrel cover 8 comprises a central recess 8a set back relative to its peripheral rim 8b and that the internal gear wheel 22 extends substantially in the plane of the rim 8b of the cover 8
  • This arrangement advantageously makes it possible to integrate the display device of the power reserve into the barrel and to limit as far as possible its overall height in the movement.
  • the wheels of the differential gear and in particular the gear ratios of the wheels 16, 18a, 18b, 20, and 22 are provided to provide, between the input 16 and the output 22 of the differential a gear ratio of between 60 and 120 and preferably 80.
  • a gear ratio of between 60 and 120 and preferably 80 By way of example, with a wheel 54 of 54 teeth, a wheel 18a of 10 teeth, a wheel 18b of 15 teeth, a wheel 20 11 teeth and a wheel 22 of 80 teeth is obtained a ratio of 1/80 e , for 6 turns of the barrel is obtained an angular displacement of 27 ° of the needle 22 linked to the wheel 22 and without gear reduction arming, and display.
  • the barrel shaft 12 and the wheel are fixed.
  • the drum 6 is rotated by the barrel spring 4 in the anti-clockwise direction (arrow F D , figure 2 ).
  • the chain C connected to the drum 6 is then wound progressively on the drum 6 from the rocket F which is in turn rotated to provide the finishing gear its driving force.
  • the wheel 18a of the satellite mobile 18 carried by the barrel cover 8 rolls on the toothing of the fixed wheel 16 also in the counterclockwise direction.
  • the wheel 18b of the mobile 18, integral in rotation with the wheel 18a then drives, in the clockwise direction, the wheel 20 in engagement with the internal toothing of the ring gear 22.
  • the ring 22 then drives the needle of the wheel in a counterclockwise direction. power reserve 24 opposite the mark 26.
  • the barrel drum 6 continues to drive the power reserve needle 24 as just described until the pads 28 come into contact with the radial surfaces of stop 30a of the openings 30.
  • the power reserve needle 24 is opposite the zero mark of the mark 26, that is to say in the position in which the mainspring 4 is totally disarmed.
  • the display needle 24 during disarming thus performs a gradual angular displacement from the indication representative of the complete winding of the mainspring, depending on the power reserve which can still be provided by the winding from the mainspring spring 4 to the indication representative of the complete disarming of the spring 4.
  • the chain C initially wound on the rocket was completely unrolled from the latter and wound on the barrel drum 6.
  • the rocket is actuated via its toothed portion in order to rewind the chain C on the rocket from the cylinder 6 on which it is wound.
  • the drum 6 is rotated about the barrel shaft 12 which is fixed relative to the platen of the movement.
  • the drum 6 then rotates clockwise (arrow A figure 2 ).
  • the wheel 18a of the satellite mobile 18 carried by the barrel cover 8 rolls on the toothing of the fixed wheel 16 also in the clockwise direction.
  • the wheel 18b of the mobile 18, integral in rotation with the wheel 18a then drives, in the counterclockwise direction, the wheel 20 in engagement with the internal toothing of the ring gear 22.
  • the ring gear 22 then drives in the clockwise direction.
  • the barrel drum 6 continues to drive the power reserve needle 24 as just described until the studs 28 come into contact with the surfaces. In this position, the power reserve needle 24 is opposite the 100% scale of the mark 26, that is to say in the position in which the mainspring 4 is totally rearmed.
  • the display needle 24 thus performs an angular displacement in the opposite direction to the previous one as a function of the power reserve provided by the number of winding turns of the mainspring. At this time, the chain C initially wound on the barrel drum 6 completely unrolled from the latter and wound on the rocket F.
  • the invention can in particular be used with a conventional barrel movement that the latter is manual or automatic winding.
  • a disengaging mechanism must be provided in order not to distort the power reserve indication when the mainspring is fully armed and the flange slides into the barrel.
  • the barrel shaft is pivotally mounted on the plate and is associated with a ratchet wheel controlled by a gear train.
  • the power reserve indication device therefore operates in a manner identical to that just described above.
  • the barrel drum that can be considered fixed.
  • the barrel shaft 12 is therefore rotated clockwise by a rearming gear so that it drives the mobile 18 in the counterclockwise direction.
  • the gear train 18 in turn drives the wheel 20 clockwise.
  • the wheel 22, carrying the power reserve indication needle, which is directly engaged with the wheel 20, is therefore driven in a counter-clockwise direction relative to the mark 26.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Unknown Time Intervals (AREA)
  • Transmission Devices (AREA)
  • Gear Transmission (AREA)
  • Electric Clocks (AREA)
  • Retarders (AREA)
  • Electromechanical Clocks (AREA)

Abstract

The timepiece (1) has a power reserve indicator device with a differential gear frame which is arranged coaxially with respect to a barrel arbour (12). The secondary output of differential gear is secured to a barrel cover. The differential gear output is obtained by an inner tooth crown which is kinetically connected to primary input by the planetary wheel sets meshed with each other, and carried by the barrel cover.

Description

La présente invention concerne une pièce d'horlogerie comprenant un dispositif indicateur de réserve de marche, c'est-à-dire un dispositif permettant d'indiquer au porteur le degré d'armage du ressort de barillet d'une pièce d'horlogerie mécanique.The present invention relates to a timepiece comprising a power reserve indicator device, that is to say a device for indicating to the wearer the degree of winding of the mainspring of a mechanical timepiece. .

Les pièces d'horlogerie comprenant des dispositifs permettant de fournir cette indication de réserve de marche sont conçues pour prendre en compte la rotation de la roue à rochet lors de l'armage du ressort de barillet ainsi que la rotation du barillet lors du désarmage du ressort de barillet. Pour ce faire, la plupart de ces dispositifs connus mettent en oeuvre un engrenage différentiel. Un dispositif de ce type est décrit, par exemple, dans le brevet EP 1 074 897 dans lequel les deux entrées de l'engrenage différentiel sont respectivement reliées à la denture du tambour de barillet et à celle de la roue à rochet, la sortie de l'engrenage différentiel étant reliée à un organe indicateur.Timepieces comprising devices for providing this power reserve indication are designed to take into account the rotation of the ratchet wheel during the winding of the mainspring as well as the rotation of the barrel during disarming of the spring. barrel. To do this, most of these known devices implement a differential gear. A device of this type is described, for example, in the patent EP 1 074 897 wherein the two inputs of the differential gear are respectively connected to the toothing of the barrel drum and that of the ratchet wheel, the output of the differential gear being connected to an indicator member.

Pour afficher le nombre de tours d'armage du ressort de barillet, qui est généralement de l'ordre de 10 pour des barillets ayant une réserve de marche de l'ordre de 2 jours, à l'aide d'un organe indicateur du type se déplaçant en regard d'une graduation s'étendant tout au plus sur 360°, il est nécessaire d'associer à l'engrenage différentiel des rouages de réduction. Ces rouages de réduction sont typiquement disposés entre le tambour de barillet et la première entrée de l'engrenage différentiel, entre la roue à rochet et la deuxième entrée de l'engrenage différentiel et entre la sortie de l'engrenage différentiel et l'organe indicateur. La présence de ces rouages de réduction se prête mal à une exécution avantageuse dans certains cas précis, notamment lorsque le mouvement comporte de nombreuses complications multipliant le nombre de pièces et que la place disponible autour du barillet est relativement limitée. En outre, les jeux inhérents à la construction présents dans ces rouages de réduction conduisent à des imprécisions d'affichage de la réserve de marche. Ces imprécisions de l'affichage sont d'autant plus grandes que l'arc le long duquel est affichée l'indication de la réserve de marche est grand.To display the number of winding turns of the mainspring, which is generally of the order of 10 for barrels with a power reserve of the order of 2 days, using an indicator organ of the type moving with respect to a graduation extending at most over 360 °, it is necessary to associate the reduction gear with the differential gearing. These reduction wheels are typically arranged between the barrel drum and the first differential gear input, between the ratchet wheel and the second differential gear input and between the differential gear output and the indicator gear. . The presence of these reduction mechanisms does not lend itself to an advantageous execution in some specific cases, especially when the movement has many complications multiplying the number of parts and the available space around the barrel is relatively limited. In addition, the games inherent in the construction present in these reduction wheels lead to inaccuracies in the display of the power reserve. These inaccuracies of the display are even larger than the arc along which is displayed the indication of the power reserve is large.

On connaît également du modèle d'utilité DE1638800U un dispositif indicateur de réserve de marche utilisant un engrenage différentiel plan à double satellite disposé entre le pont de barillet et le couvercle de barillet visant à éliminer les rouages de réduction d'armage et de désarmage. Toutefois, le rapport de réduction offert par ce type d'engrenage différentiel ne permet pas d'afficher la réserve de marche sur un arc de cercle faiblement étendu par exemple de l'ordre de 30°sans un rouage de réduction d'affichage. De plus, bien que ce dispositif de réserve de marche présente un encombrement limité dans le plan, il présente un encombrement en hauteur important qui nuit à son intégration dans des mouvements de faible épaisseur.Utility model is also known DE1638800U a power reserve indicator device utilizing a dual satellite planar differential gear disposed between the barrel bridge and the barrel cover to eliminate the gear reduction and disarming gearing. However, the reduction ratio offered by this type of differential gearing does not make it possible to display the power reserve over a slightly extended arc, for example of the order of 30 ° without a display reduction gear. In addition, although this power reserve device has a limited footprint in the plane, it has a large footprint that hinders its height in its movement in small thickness.

La présente invention a pour but de remédier aux problèmes et inconvénients ci-dessus ainsi qu'à d'autres encore en proposant une pièce d'horlogerie comprenant un dispositif indicateur de réserve de marche présentant un faible encombrement dans le plan et en hauteur ainsi qu'une grande simplicité de construction en créant une disposition plus judicieuse des éléments du dispositif indicateur de réserve de marche.The present invention aims to remedy the problems and disadvantages above and others by proposing a timepiece comprising a power reserve indicator device having a small footprint in the plane and height as well as a great simplicity of construction by creating a more judicious arrangement of the elements of the power reserve indicator device.

Un autre de but de l'invention consiste également à fournir une pièce d'horlogerie comprenant un dispositif d'indication de réserve de marche permettant de limiter voire d'éliminer les rouages de réduction d'armage, de désarmage et d'affichage de la réserve de marche.Another object of the invention is also to provide a timepiece comprising a power reserve indication device to limit or even eliminate the gearing reduction, arming, disarming and display of the power reserve.

Un autre de but de l'invention consiste également à fournir une pièce d'horlogerie comprenant un dispositif d'indication de réserve de marche ayant une précision améliorée de l'affichage de la réserve de marche.Another object of the invention is also to provide a timepiece comprising a power reserve indication device having an improved accuracy of the display of the power reserve.

Encore un autre de but de l'invention consiste à fournir une pièce d'horlogerie comprenant un dispositif d'indication de réserve de marche permettant d'afficher sans rouage de réduction, la réserve de marche sur un arc de cercle inférieur à 30°.Yet another object of the invention is to provide a timepiece comprising a power reserve indication device for displaying without gear reduction, the power reserve on a circular arc less than 30 °.

A cet effet, la présente invention concerne une pièce d'horlogerie comprenant un mouvement muni d'un dispositif indicateur de réserve de marche, ladite pièce d'horlogerie comprenant un barillet fermé par un couvercle, un ressort logé dans ce barillet et relié respectivement à un arbre de barillet et audit barillet, un rouage de finissage entraîné par ledit barillet et des moyens d'armage dudit ressort, ledit dispositif indicateur comportant un engrenage différentiel relié cinématiquement par une première entrée à l'arbre de barillet, par une seconde entrée au barillet et par une sortie à un organe indicateur de réserve de marche et dans lequel le bâti de l'engrenage différentiel est agencé coaxialement à l'arbre de barillet, caractérisée en ce que la deuxième entrée de l'engrenage différentiel est solidaire du couvercle du barillet, en ce que la sortie de l'engrenage différentiel est formée par une couronne à denture intérieure, en ce que la couronne à denture intérieure est reliée cinématiquement à la première entrée par au moins un premier et un deuxième mobiles satellites en prise l'un avec l'autre et en ce que les au moins deux mobiles satellites sont portés par le couvercle.For this purpose, the present invention relates to a timepiece comprising a movement provided with a power reserve indicator device, said timepiece comprising a barrel closed by a cover, a spring housed in this barrel and connected respectively to a barrel shaft and said cylinder, a finishing train driven by said barrel and means for winding said spring, said indicator device comprising a differential gear kinematically connected by a first input to the barrel shaft, by a second input to the barrel shaft; barrel and through an output to a power reserve indicator and wherein the differential gear housing is arranged coaxially with the barrel shaft, characterized in that the second differential gear input is secured to the gear cover. barrel, in that the output of the differential gear is formed by a ring gear with internal teeth, in that the ring gear internal teeth is kinematically connected to the first input by at least a first and second satellite mobiles meshing with each other and in that the at least two satellite mobiles are carried by the cover.

Grâce à ces caractéristiques, la présente invention procure un dispositif indicateur de réserve de marche compact et simple pouvant réduire au minimum les rouages de réduction d'armage et de désarmage. Cette solution permet également d'obtenir un indicateur de réserve de marche au moins partiellement intégré dans le couvercle ou le fond du barillet, ce qui permet de réduire sensiblement son encombrement.With these features, the present invention provides a compact and simple power-reserve indicating device which can minimize the reduction of arming and disarming workings. This solution also provides a power reserve indicator at least partially integrated into the lid or the bottom of the barrel, which significantly reduces its size.

Selon une caractéristique préférée de l'invention, l'organe indicateur est directement porté par ladite couronne à denture intérieure formant la sortie de l'engrenage différentiel. Ce mode de réalisation permet d'éliminer le rouage de réduction d'affichage dans la mesure ou l'organe d'affichage de la réserve de marche est intégré à l'engrenage différentiel.According to a preferred characteristic of the invention, the indicator member is directly carried by said ring gear to form the output of the differential gear. This embodiment makes it possible to eliminate the display reduction gear in the sense that the display member of the power reserve is integrated with the differential gear.

D'autres caractéristiques et avantages de la présente invention apparaîtront plus clairement à la lecture de la description détaillée qui suit d'un exemple de réalisation du dispositif indicateur de réserve de marche selon l'invention, cet exemple étant donné à titre purement illustratif et non limitatif, en liaison avec les dessins annexés dans lesquels :

  • la figure 1 est une vue en perspective d'un mouvement de pièce d'horlogerie équipé d'un dispositif indicateur de réserve de marche selon l'invention ;
  • la figure 2 est une vue en perspective du mécanisme indicateur de réserve de marche selon l'invention dans lequel le pont de barillet a été omis ;
  • la figure 3 est une vue en élévation du dispositif indicateur de réserve de marche selon l'invention;
  • la figure 4 est une coupe selon la ligne IV-IV de la figure 3 ; et
  • la figure 5 est une coupe selon la ligne V-V de la figure 1.
Other features and advantages of the present invention will emerge more clearly on reading the following detailed description of an exemplary embodiment of the power reserve indicator device according to the invention, this example being given purely for illustrative purposes and not in connection with the accompanying drawings in which:
  • the figure 1 is a perspective view of a timepiece movement equipped with a power reserve indicator device according to the invention;
  • the figure 2 is a perspective view of the power reserve indicator mechanism according to the invention in which the barrel bridge has been omitted;
  • the figure 3 is an elevational view of the power reserve indicator device according to the invention;
  • the figure 4 is a section along line IV-IV of the figure 3 ; and
  • the figure 5 is a section along line VV of the figure 1 .

Les vues des figures 1 à 5 illustrent partiellement une pièce d'horlogerie du type montre-bracelet par exemple, équipée d'un dispositif indicateur de réserve de marche conforme à la présente invention et désigné dans son ensemble par la référence numérique générale 1. La montre comprend un mouvement d'horlogerie M comportant une platine P sur laquelle est monté un barillet 2 dans lequel est logé un ressort de barillet 4. Le barillet 2 comprend classiquement un tambour 6 fermé par un couvercle 8 et un fond 10. Le barillet 2 est monté librement à rotation sur l'arbre de barillet 12, solidaire de la bonde 14. Le ressort 4 est accroché par son extrémité intérieure à la bonde 14 et par son extrémité extérieure à la paroi intérieure du tambour 6. Le barillet 2 est monté classiquement entre la platine P du mouvement et un pont 3 comprenant une portion centrale 3a à partir de laquelle s'étendent une branche de pont 3b et une branche de pont 3c.The views of Figures 1 to 5 partially illustrate a timepiece of the wristwatch type for example, equipped with a power reserve indicator device according to the present invention and generally designated by the general numerical reference 1. The watch comprises a watch movement M comprising a plate P on which is mounted a cylinder 2 in which is housed a cylinder spring 4. The cylinder 2 conventionally comprises a drum 6 closed by a cover 8 and a bottom 10. The cylinder 2 is freely rotatably mounted on the 12 barrel shaft secured to the bung 14. The spring 4 is hooked by its inner end to the plug 14 and its outer end to the inner wall of the drum 6. The barrel 2 is conventionally mounted between the plate P of the movement and a bridge 3 comprising a central portion 3a from which extend a bridge branch 3b and a bridge branch 3c.

Dans l'exemple illustré, le dispositif indicateur de réserve de marche 1 est appliqué un barillet associé à une fusée F montée également sur la platine P via la branche de pont 3c. Une chaîne C, dont seul un maillon est représenté au dessin, est attachée par une première extrémité au tambour de barillet 6. La chaîne C s'enroule progressivement sur le tambour 6 à partir de la fusée F à laquelle elle est fixée par une deuxième extrémité au cours du désarmage du barillet. La fusée F est classiquement associée à un rochet R et comprend une portion dentée D en prise d'une part avec un rouage de finissage et d'autre part avec un rouage de remontage. Dans cet exemple, l'arbre de barillet 12 est fixe par rapport à la platine du mouvement P. L'arbre de barillet 12 est monté entre la platine P et la branche de pont 3b. La branche de pont 3b porte en outre sur sa face disposée en regard du couvercle 8 une roue dentée 16 formant une première entrée d'un engrenage différentiel qui sera décrit plus en détail ci-après. La roue dentée 16 est montée à friction sur la branche du pont 3b par l'intermédiaire d'une bague à ressort 17 solidaire de la branche de pont 3b. La deuxième entrée de l'engrenage différentiel est formée par le barillet 4 et plus précisément par le couvercle 8 solidaire du tambour 6 qui peut pivoter autour de l'arbre de barillet 12 avec le barillet lorsque ce dernier se désarme. Le couvercle 8 qui forme ainsi le bâti de l'engrenage différentiel est donc agencé coaxialement à l'arbre de barillet. Le couvercle 8 porte un premier mobile satellite 18 comprenant une première roue 18a et une deuxième roue 18b coaxiale à la roue 18a. La roue 18a est en prise avec la roue 16 tandis que la roue 18b est en prise avec un deuxième mobile satellite 20 qui est à son tour en prise avec une couronne mobile à denture intérieure 22 qui forme la sortie de l'engrenage différentiel. La couronne 22 porte un organe d'affichage formé d'une aiguille de réserve de marche 24 qui, en fonction de la position relative qu'elle occupe vis-à-vis d'un repère 26 porté par la platine P via un pied 26a, indique au porteur la réserve de marche disponible en fonction du nombre de tours d'armage du ressort de barillet.In the example illustrated, the power reserve indicator device 1 is applied a cylinder associated with a rocket F also mounted on the plate P via the bridge arm 3c. A chain C, of which only one link is shown in the drawing, is attached by a first end to the barrel drum 6. The chain C is progressively wound on the drum 6 from the rocket F to which it is fixed by a second end during disarming of the barrel. The rocket F is conventionally associated with a ratchet R and comprises a toothed portion D engaged on the one hand with a work train and on the other hand with a winding train. In this example, the barrel shaft 12 is fixed relative to the plate of the movement P. The barrel shaft 12 is mounted between the plate P and the bridge leg 3b. The bridge arm 3b also bears on its face disposed opposite the cover 8 a toothed wheel 16 forming a first input of a differential gear which will be described in more detail below. The toothed wheel 16 is frictionally mounted on the branch of the bridge 3b by means of a spring ring 17 secured to the bridge branch 3b. The second input of the differential gear is formed by the barrel 4 and more precisely by the cover 8 integral with the drum 6 which can pivot around the barrel shaft 12 with the barrel when the barrel disarms. The cover 8 which thus forms the frame of the differential gear is thus arranged coaxially with the barrel shaft. The cover 8 carries a first satellite mobile 18 comprising a first wheel 18a and a second wheel 18b coaxial with the wheel 18a. The wheel 18a is engaged with the wheel 16 while the wheel 18b is engaged with a second satellite mobile 20 which is in turn engaged with a movable ring gear 22 which forms the output of the differential gear. The crown 22 carries a display member formed of a power reserve needle 24 which, depending on the relative position it occupies with respect to a mark 26 carried by the plate P via a foot 26a, indicates carrying the power reserve available according to the number of winding turns of the mainspring.

En se référant plus particulièrement aux figures 2 et 3 on voit également que le dispositif d'indication de réserve de marche selon l'invention comprend en outre des moyens 28, 30 pour limiter la course angulaire de la roue à denture intérieure 22 de manière que l'aiguille 24 évolue entre deux positions d'armage et de désarmage extrêmes fixes et définies correspondant aux degrés d'armage respectivement de désarmage extrêmes du repère 26. Les moyens de limitation 28, 30 comprennent dans l'exemple illustré trois plots 28 solidaires du pont 3, les plots 28 se déplaçant chacun dans une ouverture 30 ménagée dans la roue à denture intérieure 22. De préférence, les ouvertures 30 sont des découpes ouvertes vers l'extérieur ménagées dans le pourtour périphérique de la roue 22, ces ouvertures 30 définissant chacune deux surfaces radiales de butée 30a et 30b pour le plot 28 qui lui est associé.With particular reference to Figures 2 and 3 it is also seen that the power reserve indication device according to the invention further comprises means 28, 30 for limiting the angular travel of the internal gear wheel 22 so that the needle 24 moves between two positions of fixed and defined extreme arming and disarming corresponding to the degrees of arming respectively extreme disarming of the mark 26. The limiting means 28, 30 comprise in the illustrated example three studs 28 integral with the bridge 3, the studs 28 moving each in an opening 30 formed in the internal gear wheel 22. Preferably, the openings 30 are outwardly open cuts formed in the circumferential periphery of the wheel 22, these openings 30 each defining two radial abutment surfaces 30a and 30b for the stud 28 associated with it.

On notera également que dans l'exemple illustré, le couvercle du barillet 8 comprend un évidement central 8a en retrait par rapport à son rebord périphérique 8b et que la roue à denture intérieure 22 s'étend sensiblement dans le plan du rebord 8b du couvercle 8. Cette disposition permet avantageusement d'intégrer le dispositif d'affichage de la réserve de marche dans le barillet et de limiter au maximum son encombrement en hauteur dans le mouvement.Note also that in the illustrated example, the barrel cover 8 comprises a central recess 8a set back relative to its peripheral rim 8b and that the internal gear wheel 22 extends substantially in the plane of the rim 8b of the cover 8 This arrangement advantageously makes it possible to integrate the display device of the power reserve into the barrel and to limit as far as possible its overall height in the movement.

Les roues de l'engrenage différentiel et en particulier les rapports d'engrenage des roues 16, 18a, 18b, 20, et 22 sont prévus pour fournir, entre l'entrée 16 et la sortie 22 du différentiel une démultiplication comprise entre 60 et 120 et de préférence 80. A titre d'exemple, avec une roue 16 de 54 dents, une roue 18a de 10dents une roue 18b de 15 dents une roue 20 de 11 dents et une roue 22 de 80 dents on obtient un rapport de 1/80e, soit pour 6 tours du barillet on obtient un déplacement angulaire de 27° de l'aiguille 22 lié à la roue 22 et ce sans rouage de réduction d'armage, et d'affichage.The wheels of the differential gear and in particular the gear ratios of the wheels 16, 18a, 18b, 20, and 22 are provided to provide, between the input 16 and the output 22 of the differential a gear ratio of between 60 and 120 and preferably 80. By way of example, with a wheel 54 of 54 teeth, a wheel 18a of 10 teeth, a wheel 18b of 15 teeth, a wheel 20 11 teeth and a wheel 22 of 80 teeth is obtained a ratio of 1/80 e , for 6 turns of the barrel is obtained an angular displacement of 27 ° of the needle 22 linked to the wheel 22 and without gear reduction arming, and display.

Le mode de réalisation illustré du dispositif de réserve de marche selon l'invention qui vient d'être décrit fonctionne de la façon suivante.The illustrated embodiment of the power reserve device according to the invention which has just been described operates as follows.

Lorsque la pièce d'horlogerie fonctionne normalement, c'est-à-dire lorsque le ressort de barillet est en cours de désarmage, l'arbre de barillet 12 et la roue sont fixes. Le tambour 6 est entraîné en rotation par le ressort de barillet 4 dans le sens anti-horaire (flèche FD, figure 2). La chaîne C reliée au tambour 6 est alors enroulée progressivement sur le tambour 6 à partir de la fusée F qui est à son tour entraînée en rotation pour fournir au rouage de finissage sa force motrice. Ce faisant, la roue 18a du mobile satellite 18 porté par le couvercle de barillet 8 roule sur la denture de la roue fixe 16 également dans le sens anti-horaire. La roue 18b du mobile 18, solidaire en rotation de la roue 18a, entraîne alors, dans le sens horaire, la roue 20 en prise avec la denture intérieure de la couronne 22. La couronne 22 entraîne alors dans le sens antihoraire l'aiguille de réserve de marche 24 en regard du repère 26. Le tambour 6 de barillet continue d'entraîner l'aiguille de réserve de marche 24 comme cela vient d'être décrit jusqu'à ce que les plots 28 viennent en contact avec les surfaces radiales de butée 30a des ouvertures 30. Dans cette position, l'aiguille de réserve de marche 24 est en regard de la graduation zéro du repère 26, c'est-à-dire dans la position dans laquelle le ressort de barillet 4 est totalement désarmé. L'aiguille d'affichage 24 au cours du désarmage effectue ainsi un déplacement angulaire progressif à partir de l'indication représentative de l'armage complet du ressort de barillet, en fonction de la réserve de marche qui peut encore être assurée par l'armage du ressort de barillet 4 jusqu'à l'indication représentative du désarmage complet du ressort 4. A cet instant la chaîne C enroulée initialement sur la fusée s'est totalement déroulée à partir cette dernière et s'est enroulée sur le tambour de barillet 6.When the timepiece is operating normally, that is to say when the mainspring is being disarmed, the barrel shaft 12 and the wheel are fixed. The drum 6 is rotated by the barrel spring 4 in the anti-clockwise direction (arrow F D , figure 2 ). The chain C connected to the drum 6 is then wound progressively on the drum 6 from the rocket F which is in turn rotated to provide the finishing gear its driving force. In doing so, the wheel 18a of the satellite mobile 18 carried by the barrel cover 8 rolls on the toothing of the fixed wheel 16 also in the counterclockwise direction. The wheel 18b of the mobile 18, integral in rotation with the wheel 18a, then drives, in the clockwise direction, the wheel 20 in engagement with the internal toothing of the ring gear 22. The ring 22 then drives the needle of the wheel in a counterclockwise direction. power reserve 24 opposite the mark 26. The barrel drum 6 continues to drive the power reserve needle 24 as just described until the pads 28 come into contact with the radial surfaces of stop 30a of the openings 30. In this position, the power reserve needle 24 is opposite the zero mark of the mark 26, that is to say in the position in which the mainspring 4 is totally disarmed. The display needle 24 during disarming thus performs a gradual angular displacement from the indication representative of the complete winding of the mainspring, depending on the power reserve which can still be provided by the winding from the mainspring spring 4 to the indication representative of the complete disarming of the spring 4. At this moment the chain C initially wound on the rocket was completely unrolled from the latter and wound on the barrel drum 6.

Pour remonter la pièce d'horlogerie en vue du réarmage du ressort de barillet on agit sur la fusée via sa portion dentée afin de réenrouler la chaîne C sur la fusée à partir du barillet 6 sur laquelle elle est enroulée. Ce faisant, le tambour 6 est mis en rotation autour de l'arbre de barillet 12 qui est fixe par rapport à la platine du mouvement. Le tambour 6 tourne alors dans le sens horaire (flèche A figure 2). Ce faisant, la roue 18a du mobile satellite 18 porté par le couvercle de barillet 8 roule sur la denture de la roue fixe 16 également dans le sens horaire. La roue 18b du mobile 18, solidaire en rotation de la roue 18a, entraîne alors, dans le sens anti-horaire, la roue 20 en prise avec la denture intérieure de la couronne 22. La couronne 22 entraîne alors dans le sens horaire l'aiguille de réserve de marche 24 en regard du repère 26. Le tambour 6 de barillet continue d'entraîner l'aiguille de réserve de marche 24 comme cela vient d'être décrit jusqu'à ce que les plots 28 viennent en contact avec les surfaces radiales de butée 30b des ouvertures 30. Dans cette position, l'aiguille de réserve de marche 24 est en regard de la graduation 100% du repère 26, c'est-à-dire dans la position dans laquelle le ressort de barillet 4 est totalement réarmé. L'aiguille d'affichage 24 effectue ainsi un déplacement angulaire en sens opposé au précédent en fonction de la réserve de marche assurée par le nombre de tours d'armage du ressort de barillet. A cet instant la chaîne C enroulée initialement sur le tambour de barillet 6 s'est totalement déroulée à partir de ce dernier et s'est enroulée sur la fusée F.To reassemble the timepiece for the purpose of rearming the mainspring, the rocket is actuated via its toothed portion in order to rewind the chain C on the rocket from the cylinder 6 on which it is wound. In doing so, the drum 6 is rotated about the barrel shaft 12 which is fixed relative to the platen of the movement. The drum 6 then rotates clockwise (arrow A figure 2 ). In doing so, the wheel 18a of the satellite mobile 18 carried by the barrel cover 8 rolls on the toothing of the fixed wheel 16 also in the clockwise direction. The wheel 18b of the mobile 18, integral in rotation with the wheel 18a, then drives, in the counterclockwise direction, the wheel 20 in engagement with the internal toothing of the ring gear 22. The ring gear 22 then drives in the clockwise direction. power reserve needle 24 facing the mark 26. The barrel drum 6 continues to drive the power reserve needle 24 as just described until the studs 28 come into contact with the surfaces. In this position, the power reserve needle 24 is opposite the 100% scale of the mark 26, that is to say in the position in which the mainspring 4 is totally rearmed. The display needle 24 thus performs an angular displacement in the opposite direction to the previous one as a function of the power reserve provided by the number of winding turns of the mainspring. At this time, the chain C initially wound on the barrel drum 6 completely unrolled from the latter and wound on the rocket F.

Il va de soi que l'invention n'est pas limitée au mode de réalisation qui vient d'être décrit, et que des modifications et des variantes peuvent être envisagées sans sortir du cadre de l'invention défini par les revendications annexées.It goes without saying that the invention is not limited to the embodiment which has just been described, and that modifications and variants can be envisaged without departing from the scope of the invention defined by the appended claims.

On notera que l'invention peut notamment être utilisée avec un mouvement à barillet classique que ce dernier soit à remontage manuel ou automatique. Dans ce dernier cas, un mécanisme à débrayage devra être prévu pour ne pas fausser l'indication de réserve de marche lorsque le ressort du barillet est armé au maximum et que la bride glisse dans le barilletIt should be noted that the invention can in particular be used with a conventional barrel movement that the latter is manual or automatic winding. In the latter case, a disengaging mechanism must be provided in order not to distort the power reserve indication when the mainspring is fully armed and the flange slides into the barrel.

Dans le cas d'une application à un barillet classique, l'arbre de barillet est monté pivotant sur la platine et est associé à une roue à rochet commandée par un rouage d'armage. Au cours du désarmage, la roue 16 qui est solidaire de l'arbre de barillet est fixe, le dispositif d'indication de la réserve de marche fonctionne donc de manière identique à ce qui vient d'être décrit précédemment. Lors du réarmage, c'est le tambour de barillet qui peut être considéré comme fixe. L'arbre de barillet 12 est donc mis en rotation dans le sens horaire par un rouage de réarmage de sorte qu'il entraîne le mobile 18 dans le sens anti-horaire. Le rouage 18 entraîne à son tour la roue 20 dans le sens horaire. La roue 22, portant l'aiguille d'indication de la réserve de marche, qui est directement en prise avec la roue 20, est donc entraînée dans le sens anti-horaire en regard du repère 26.In the case of an application to a conventional barrel, the barrel shaft is pivotally mounted on the plate and is associated with a ratchet wheel controlled by a gear train. During disarming, the wheel 16 which is secured to the barrel shaft is fixed, the power reserve indication device therefore operates in a manner identical to that just described above. When re-arming, it is the barrel drum that can be considered fixed. The barrel shaft 12 is therefore rotated clockwise by a rearming gear so that it drives the mobile 18 in the counterclockwise direction. The gear train 18 in turn drives the wheel 20 clockwise. The wheel 22, carrying the power reserve indication needle, which is directly engaged with the wheel 20, is therefore driven in a counter-clockwise direction relative to the mark 26.

Claims (12)

Pièce d'horlogerie comprenant un mouvement muni d'un dispositif indicateur de réserve de marche, ladite pièce d'horlogerie comprenant un barillet fermé par un couvercle, un ressort logé dans ce barillet et relié respectivement à un arbre de barillet et audit barillet, un rouage de finissage entraîné par ledit barillet et des moyens d'armage dudit ressort, ledit dispositif indicateur comportant un engrenage différentiel relié cinématiquement par une première entrée à l'arbre de barillet, par une seconde entrée au barillet et par une sortie à un organe indicateur de réserve de marche et dans lequel le bâti de l'engrenage différentiel est agencé coaxialement à l'arbre de barillet, caractérisée en ce que la deuxième entrée de l'engrenage différentiel est solidaire du couvercle du barillet, en ce que la sortie de l'engrenage différentiel est formée par une couronne à denture intérieure, en ce que la couronne à denture intérieure est reliée cinématiquement à la première entrée par au moins un premier et un deuxième mobiles satellites en prise l'un avec l'autre et en ce que les au moins deux mobiles satellite sont portés par le couvercle.Timepiece comprising a movement provided with a power reserve indicator device, said timepiece comprising a barrel closed by a cover, a spring housed in this barrel and connected respectively to a barrel shaft and to said barrel, a finishing gear driven by said barrel and means for winding said spring, said indicator device comprising a differential gear kinematically connected by a first input to the barrel shaft, a second barrel input and an output to an indicator member power reserve system and wherein the differential gear frame is arranged coaxially with the barrel shaft, characterized in that the second input of the differential gear is integral with the barrel cover, in that the output of the spur gear is differential gear is formed by a ring gear with internal teeth, in that the ring gear is kinematically connected at the first input by at least first and second satellite mobiles meshing with each other and in that the at least two satellite mobiles are carried by the cover. Pièce d'horlogerie selon la revendication 1, caractérisée en ce que l'organe indicateur est directement porté par ladite couronne à denture intérieure.Timepiece according to claim 1, characterized in that the indicator member is directly carried by said ring gear. Pièce d'horlogerie selon la revendication 1, caractérisée en ce que la première entrée de l'engrenage différentiel est formée d'une roue dentée d'entrée disposée autour de l'axe de barilletTimepiece according to claim 1, characterized in that the first input of the differential gear is formed of an input gear arranged around the cylinder axis Pièce d'horlogerie selon la revendication 3, caractérisée en ce que le premier mobile satellite comprend une première roue en prise avec la première entrée du différentiel et une deuxième roue en prise avec le deuxième satellite, le deuxième satellite étant en prise avec la couronne à denture intérieure.Timepiece according to claim 3, characterized in that the first satellite mobile comprises a first wheel engaged with the first differential input and a second wheel engaged with the second satellite, the second satellite being engaged with the ring gear. internal teeth. Pièce d'horlogerie selon la revendication 3, caractérisée en ce que le couvercle du barillet comprend un évidement central en retrait par rapport à son rebord périphérique et en ce que la couronne à denture intérieure s'étend sensiblement dans le plan du rebord du couvercle.Timepiece according to claim 3, characterized in that the barrel cover comprises a central recess set back from its peripheral rim and in that the inner gear ring extends substantially in the plane of the rim of the lid. Pièce d'horlogerie selon l'une quelconque des revendications précédentes caractérisée en ce que l'arbre de barillet est monté fixe dans le mouvement et en ce que la première entée est solidaire de l'arbre de barillet.Timepiece according to any one of the preceding claims characterized in that the barrel shaft is fixedly mounted in the movement and in that the first input is secured to the barrel shaft. Pièce d'horlogerie selon la revendication 3 et 6, caractérisée en ce que la roue dentée d'entrée est montée à friction sur l'arbre de barillet au moyen d'une bague à ressort.Timepiece according to claim 3 and 6, characterized in that the input gear is frictionally mounted on the cylinder shaft by means of a spring ring. Pièce d'horlogerie selon l'une quelconque des revendications précédentes caractérisée en ce qu'il comprend en outre des moyens pour limiter la course angulaire de la couronne à denture intérieure.Timepiece according to any one of the preceding claims characterized in that it further comprises means for limiting the angular travel of the ring gear. Pièce d'horlogerie selon la revendications 6, caractérisée en ce que lesdits moyens de limitation de la course angulaire comprennent au moins un plot solidaire du couvercle, ledit plot se déplaçant dans une ouverture ménagé dans la couronne à denture intérieure.Timepiece according to claim 6, characterized in that said means for limiting the angular stroke comprise at least one stud integral with the cover, said stud moving in an opening in the ring gear. Pièce d'horlogerie selon l'une des revendications précédentes caractérisée en les roues de l'engrenage différentiel sont agencées pour fournir, entre l'entrée et la sortie du différentiel une démultiplication comprise entre 60 et 120 et de préférence 80.Timepiece according to one of the preceding claims, characterized in that the wheels of the differential gear are arranged to provide, between the input and the output of the differential, a gear ratio of between 60 and 120 and preferably 80. Pièce d'horlogerie selon l'une quelconque des revendications précédentes, caractérisée en ce que l'organe indicateur de réserve de marche est une aiguille.Timepiece according to any one of the preceding claims, characterized in that the power reserve indicator member is a needle. Pièce d'horlogerie selon l'une quelconque des revendications précédentes en combinaison avec la revendication 6 ou 7 dans lequel le barillet comprend un tambour, caractérisée en ce que le barillet est associé à une fusée au moyen d'une chaîne reliée par une première extrémité à son tambour, ladite chaîne étant enroulée sur le tambour à partir de la fusée au cours du désarmage du ressort de barillet et en ce que la fusée est associée à un rochet et comprend une portion dentée en prise avec le rouage de finissageTimepiece according to any one of the preceding claims in combination with claim 6 or 7 wherein the barrel comprises a drum, characterized in that the barrel is associated with a rocket by means of a chain connected by a first end at its drum, said chain being wound on the drum from the rocket during disarming of the mainspring and in that the rocket is associated with a ratchet and comprises a toothed portion engaged with the finishing gear
EP07104055A 2007-03-13 2007-03-13 Timepiece comprising a device indicating the power reserve Active EP1970778B1 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP07104055A EP1970778B1 (en) 2007-03-13 2007-03-13 Timepiece comprising a device indicating the power reserve
AT07104055T ATE443282T1 (en) 2007-03-13 2007-03-13 WATCH WITH POWER RESERVE DISPLAY
DE602007002471T DE602007002471D1 (en) 2007-03-13 2007-03-13 Watch with power reserve indicator
US12/043,342 US7490977B2 (en) 2007-03-13 2008-03-06 Timepiece including a power reserve indicator device
JP2008059047A JP5436788B2 (en) 2007-03-13 2008-03-10 A watch having a power reserve display mechanism
CN2008100864408A CN101281386B (en) 2007-03-13 2008-03-12 Timepiece comprising a device indicating the power reserve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP07104055A EP1970778B1 (en) 2007-03-13 2007-03-13 Timepiece comprising a device indicating the power reserve

Publications (2)

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EP1970778A1 true EP1970778A1 (en) 2008-09-17
EP1970778B1 EP1970778B1 (en) 2009-09-16

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EP07104055A Active EP1970778B1 (en) 2007-03-13 2007-03-13 Timepiece comprising a device indicating the power reserve

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US (1) US7490977B2 (en)
EP (1) EP1970778B1 (en)
JP (1) JP5436788B2 (en)
CN (1) CN101281386B (en)
AT (1) ATE443282T1 (en)
DE (1) DE602007002471D1 (en)

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CN104049520B (en) * 2013-03-15 2016-08-31 天津海鸥表业集团有限公司 A kind of chain transmission type wrist-watch time indication mechanism
EP2977827B1 (en) * 2014-07-22 2017-11-15 Montres Breguet SA Clock barrel with improved force transmission
EP3306416B1 (en) * 2016-10-04 2019-08-21 ETA SA Manufacture Horlogère Suisse Mechanical clock movement with power-reserve detection
EP3333637B1 (en) 2016-12-12 2021-09-22 ETA SA Manufacture Horlogère Suisse Mechanical clock movement with power reserve detection
EP3382468B1 (en) * 2017-03-30 2020-01-15 The Swatch Group Research and Development Ltd Movement with extension of running reserve
EP3435169B1 (en) * 2017-07-25 2023-03-01 Blancpain SA Halting mechanism for a timepiece chiming mechanism
KR102172820B1 (en) * 2017-07-25 2020-11-03 불랑패인쏘시에떼아노님 Torque smoothing for a timepiece, particularly with a striking mechanism
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EP3992727A1 (en) * 2020-10-30 2022-05-04 ETA SA Manufacture Horlogère Suisse Mechanical clock movement with running reserve detection

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Cited By (19)

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CN104838321A (en) * 2012-10-30 2015-08-12 帕米贾尼弗勒里耶股份有限公司 Timepiece intended to indicate power reserve
US9367040B2 (en) 2012-10-30 2016-06-14 Parmigiani Fleurier SA Timepiece intended to indicate the power reserve
WO2014068375A1 (en) 2012-10-30 2014-05-08 Parmigiani Fleurier S.A. Timepiece intended to indicate the power reserve
EP2735919A1 (en) * 2012-11-27 2014-05-28 Montres Breguet SA Watch movement comprising a fusee
US8858068B2 (en) 2012-11-27 2014-10-14 Montres Breguet Sa Watch movement comprising a fusee
EP2869134A1 (en) 2013-11-04 2015-05-06 Chronometres Ferdinand Berthoud Neuchatel SA, Val-de-Travers Barrel system for a timepiece
WO2015063337A2 (en) 2013-11-04 2015-05-07 Chronometrie Ferdinand Berthoud Sa Fusee system
WO2015063338A2 (en) 2013-11-04 2015-05-07 Chronometrie Ferdinand Berthoud Sa Barrel system for a timepiece
EP2869135A1 (en) 2013-11-04 2015-05-06 Chronometres Ferdinand Berthoud Neuchatel SA, Val-de-Travers Fusee system
EP3098668A1 (en) 2015-05-29 2016-11-30 ETA SA Manufacture Horlogère Suisse Power reserve indicator for a timepiece
EP3106927A2 (en) 2015-05-29 2016-12-21 ETA SA Manufacture Horlogère Suisse Power reserve indicator for a timepiece
US10241475B2 (en) 2016-03-11 2019-03-26 The Swatch Group Research And Development Ltd Timepiece regulating mechanism with optimised magnetic escapement
EP3217227A1 (en) * 2016-03-11 2017-09-13 The Swatch Group Research and Development Ltd. Timepiece regulator mechanism with optimised magnetic escapement
RU2721618C2 (en) * 2016-03-11 2020-05-21 Те Свотч Груп Рисерч Энд Дивелопмент Лтд Clock-control mechanism with optimized magnetic descent
EP3627233A1 (en) * 2018-09-19 2020-03-25 ETA SA Manufacture Horlogère Suisse Timepiece power reserve indicator mechanism
US11526130B2 (en) 2018-09-19 2022-12-13 Eta Sa Manufacture Horlogere Suisse Power reserve indicator mechanism for horology
CN115047740A (en) * 2021-03-09 2022-09-13 Eta瑞士钟表制造股份有限公司 Timepiece display device on a plurality of wheels
EP4057080A1 (en) * 2021-03-09 2022-09-14 ETA SA Manufacture Horlogère Suisse Device for timepiece display on several mobiles
CN115047740B (en) * 2021-03-09 2024-03-26 Eta瑞士钟表制造股份有限公司 Timepiece display apparatus on a plurality of wheels

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ATE443282T1 (en) 2009-10-15
DE602007002471D1 (en) 2009-10-29
JP5436788B2 (en) 2014-03-05
CN101281386B (en) 2011-12-14
EP1970778B1 (en) 2009-09-16
CN101281386A (en) 2008-10-08
JP2008224668A (en) 2008-09-25
US20080225646A1 (en) 2008-09-18
US7490977B2 (en) 2009-02-17

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