EP3306415A1 - Mechanical clock movement with power-reserve detection - Google Patents

Mechanical clock movement with power-reserve detection Download PDF

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Publication number
EP3306415A1
EP3306415A1 EP16192232.3A EP16192232A EP3306415A1 EP 3306415 A1 EP3306415 A1 EP 3306415A1 EP 16192232 A EP16192232 A EP 16192232A EP 3306415 A1 EP3306415 A1 EP 3306415A1
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EP
European Patent Office
Prior art keywords
wheel
movement
differential
cam
contact
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
EP16192232.3A
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German (de)
French (fr)
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EP3306415B1 (en
Inventor
Julien Saglini
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.)
ETA SA Manufacture Horlogere Suisse
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ETA SA Manufacture Horlogere Suisse
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Publication date
Application filed by ETA SA Manufacture Horlogere Suisse filed Critical ETA SA Manufacture Horlogere Suisse
Priority to EP16192232.3A priority Critical patent/EP3306415B1/en
Priority to JP2017184573A priority patent/JP6411608B2/en
Priority to CN201710888573.6A priority patent/CN107894700B/en
Priority to US15/724,833 priority patent/US10162309B2/en
Publication of EP3306415A1 publication Critical patent/EP3306415A1/en
Priority to HK18111499.3A priority patent/HK1252110A1/en
Application granted granted Critical
Publication of EP3306415B1 publication Critical patent/EP3306415B1/en
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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
    • G04B11/00—Click devices; Stop clicks; Clutches
    • G04B11/02—Devices allowing the motion of a rotatable part in only one direction
    • G04B11/022—Devices allowing the motion of a rotatable part in only one direction with a ratchet which makes contact with the rotating member by means of teeth
    • 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
    • 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
    • G04B1/00—Driving mechanisms
    • G04B1/10—Driving mechanisms with mainspring
    • G04B1/16—Barrels; Arbors; Barrel axles
    • 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
    • G04B1/00—Driving mechanisms
    • G04B1/10—Driving mechanisms with mainspring
    • G04B1/22—Compensation of changes in the motive power of the mainspring
    • 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
    • G04B9/005—Supervision of the state of winding, e.g. indicating the amount of winding by optical indication of the amount of winding

Definitions

  • the present invention relates to a mechanical clockwork movement provided with power reserve detection means.
  • a mechanical watchmaking movement generally comprises a barrel system driving at least one wheel at the load outlet and a wheel at the discharge outlet respectively connected to a load wheel and a discharge wheel of a differential.
  • a set of wheels in connection with an intermediate wheel of the differential controls a power-reserve display, but no movement element is provided for a movement-locking operation when the power-reserve is at zero.
  • the patent EP 0 568 499 B1 discloses a power reserve indicator device for a mechanical watch.
  • the indicator device comprises at least one star wheel with an indicator member, which is rotated during loading or unloading of the barrel.
  • the indicator organ makes it possible to display the power reserve of the watch. However nothing is planned to ensure a blocking of the movement, when the power reserve approaches zero.
  • the patent CH 698 752 B1 describes a timepiece, which includes a mechanism for indicating the power reserve. It includes two barrels facing each other and connected by a common tree, which controls the mechanism for displaying the power reserve. However nothing is planned to ensure a blocking of the movement, when the power reserve approaches zero.
  • the main purpose of the invention is therefore to overcome the drawbacks of the state of the art by proposing a mechanical clockwork movement provided with power reserve detection means and capable of blocking the operation of the movement when the power reserve is present. is close to zero.
  • the present invention relates to a mechanical clockwork movement provided with power reserve detection means, which comprises the characteristics of the independent claim 1.
  • An advantage of the mechanical clockwork movement is that it is possible with the same element displaceable by the cam wheel to control the indication of the power reserve and to perform a blocking by the locking member of the movement, when the power reserve is at zero. Even with the indication of the power reserve at zero, the barrel of the barrel system is still sufficiently loaded to operate the watch movement. However, advantageously, the mechanical clockwork is blocked for safety when the power reserve indication is at zero.
  • the Figures 1a and 1b represent a three-dimensional view from above of the components of the mechanical clockwork movement 1 in the normal operating position in figure 1a and in blocking position of the movement in figure 1b .
  • the mechanical clockwork movement 1 comprises at least one not shown barrel system, which is arranged for example on one side of a movement watch plate or another support plate.
  • This barrel system can be single barrel or two barrel or more than two well known barrels and has a load output and a discharge outlet to drive a time base wheel.
  • the mechanical clockwork movement 1 comprises for example a differential 2, which is rotatably mounted about an axis of rotation, and connected respectively to the charge outlet and the discharge outlet of the barrel system.
  • the differential 2 is connected directly or via a gear stage or speed multiplier to the load output and the discharge output of the barrel system.
  • the differential 2 is connected through a speed reduction gear stage to the load output and the discharge output of the cylinder system so as to reduce the rotation for the detection of the power reserve. explained below.
  • the differential 2 comprises a first load wheel 2c and a second discharge wheel 2d disposed preferably on the same axis of rotation as the first load wheel.
  • the differential 2 further comprises an intermediate wheel 2i between the load wheel 2c and the discharge wheel 2d and in contact with the load wheel and the discharge wheel in particular by means of a ball bearing arrangement or with rollers.
  • the load wheel 2c In normal operation of the watch movement after a charging operation of the barrel system, the load wheel 2c remains fixed without rotation, while the discharge wheel 2d is rotating. In this way, the intermediate wheel 2i is rotated in the same direction as the discharge wheel 2d, but with a rotational speed smaller than the rotational speed of the discharge wheel 2d.
  • the intermediate wheel 2i of the differential 2 is connected to a cam follower 4, for example by means of a speed reduction gear stage 3.
  • This reducing stage may be a drive wheel 3, the outer periphery of which may be toothed. meshing with an external toothing of the intermediate wheel 2i, while a central pinion 3 'of smaller diameter comes into contact with the cam follower 4.
  • This cam follower 4 can also be a wheel 4, on which is arranged, fixed on the axis of rotation, a disk or at least one angular sector 4 'acting as a cam for driving a movable member 5 for actuating a power reserve indicator.
  • the disk or the angular sector can come from material or be made with the wheel of the mobile 4 in contact with the central gear 3 'of the drive wheel 3.
  • the wheel of the mobile 4 and the central gear 3' can be with a toothing to mesh with each other.
  • the periphery of the disc or the angular sector 4 defines a curve with a distance to the axis of rotation variable from a first end of the disc or the angular sector 4' to a second end of the disc or the angular sector.
  • the radius or distance to the axis of rotation of the periphery of the disk or the angular sector is variable from the first end to the second end.
  • the distance to the axis of rotation can decrease at least on a portion of the disk or the angular sector between the first end and the second end and in a regular manner.
  • the distance d1 to the axis of rotation of the first end of the disk or the angular sector is greater than the distance d2 to the axis of rotation of the second end of the disk or of the angular sector 4 'to control a blockage of the movement .
  • the displaceable element 5 comprises a wedge 15 for coming into contact with the periphery of the disk or of the angular sector 4 'while being pushed against the periphery by a spring 6 as shown in FIGS. Figures 1a and 1b .
  • This spring 6 pushes against a lateral surface the displaceable element 5 towards the periphery of the disc or the angular sector 4 '.
  • This displaceable element 5 may be rotatably mounted about an axis of rotation.
  • the displaceable member 5 may be in the form of a flat-shaped rake, but any other form for this displaceable member may be envisaged.
  • a power reserve indicator 7 is thus provided to display a full charge indication.
  • This power reserve indicator comprises a display wheel 7 with possibly a not shown needle fixed on the axis of rotation of the display wheel 7.
  • the display wheel 7 is for example rotated in contact with a wheel. inner surface of an opening 17 oblong rake 5 away from its axis of rotation.
  • the display wheel 7 may be toothed to mesh with an internal toothing of the oblong-shaped opening 17 of the rake 5.
  • the radius or distance from the corner 15 of the rake 5 in contact with the center of rotation is the smallest at the second end of the disk or the angular sector.
  • the rake 5 comprises a locking portion 15 'coming into contact with a locking member 10.
  • This locking member 10 is directly connected to the discharge outlet of the barrel system or to the discharge wheel 2d differential 2 to block the watch movement, when the power reserve (RDM) is zero.
  • This locking member 10 is an intermediate mobile between the discharge discharge wheel of the barrel system and the discharge wheel 2d of the differential and can also act as a reducing stage. It can also be envisaged to have the blocking member 10 connected to other wheels of a reducing stage from the discharge outlet of the barrel system to the discharge wheel 2d of the differential 2.
  • the blocking 10 takes the form of a rod 11 with a toothed portion or not, which is rotatably mounted. This wheel-shaped portion 11 'on the rod 11 can come into contact with an output wheel of the barrel system or preferably with the discharge wheel 2d of the differential 2. At least one tooth 12' on the locking member 10 rotatably mounted is provided to be hooked by a notch 15 'of the blocking portion of the rake 5, when the power reserve is zero.
  • the locking member 10 thus comprises a star-shaped wheel 12 for example with three teeth 12 ', which is fixed on the rod 11 above the wheel-shaped portion 11' mounted on the rod 11 in contact with the discharge wheel 2d of the differential 2.
  • the number of locking teeth provided is not important provided that one of the teeth comes into contact with the notch 15 'of the locking portion of the rake 5.
  • the mechanical watchmaking movement with power reserve detection means can be designed by those skilled in the art without departing from the scope of the invention defined by the claims. It can be provided that the movable member for actuating the power reserve indicator and coming into contact with the locking member when the power reserve is at zero is moved rectilinearly and not rotatably by the moving member. cam.
  • the watch movement may be in the form of a module with all the elements arranged in said module.

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

Abstract

Le mouvement d'horlogerie mécanique (1) à indication de la réserve de marche comprend au moins un système à barillet en liaison avec une roue de charge (2c) d'un différentiel (2) et une roue de décharge (2d) du différentiel (2). Une roue intermédiaire (2i) du différentiel (2) est en liaison avec un mobile à came (4) pour l'entraîner en rotation par l'intermédiaire d'un étage réducteur (3). Un râteau (5), qui agit sur un indicateur de réserve de marche (7), est en contact avec le mobile à came (4). Quand la réserve de marche est à zéro, une partie de blocage du râteau (5) vient en contact d'un organe de blocage (10) pour bloquer le mouvement à une sortie de décharge du système à barillet ou en contact de la roue de décharge (2d) du différentiel (2).The mechanical clockwork (1) with power reserve indication comprises at least one cylinder system in connection with a load wheel (2c) of a differential (2) and a discharge wheel (2d) of the differential (2). An intermediate wheel (2i) of the differential (2) is connected to a cam follower (4) to drive it in rotation through a reducing stage (3). A rake (5), which acts on a power reserve indicator (7), is in contact with the cam follower (4). When the power reserve is zero, a rake blocking part (5) comes into contact with a locking member (10) to block the movement at a discharge outlet of the barrel system or in contact with the wheel of discharge (2d) of the differential (2).

Description

DOMAINE TECHNIQUETECHNICAL AREA

La présente invention concerne un mouvement d'horlogerie mécanique muni de moyens de détection de réserve de marche.The present invention relates to a mechanical clockwork movement provided with power reserve detection means.

ARRIERE-PLAN TECHNOLOGIQUEBACKGROUND

Un mouvement d'horlogerie mécanique comprend généralement un système à barillet entraînant au moins une roue en sortie de charge et une roue en sortie de décharge reliées respectivement à une roue de charge et à une roue de décharge d'un différentiel. Un ensemble de roues en liaison à une roue intermédiaire du différentiel contrôle un affichage de réserve de marche, mais aucun élément du mouvement n'est prévu pour une opération de blocage du mouvement quand la réserve de marche est à zéro.A mechanical watchmaking movement generally comprises a barrel system driving at least one wheel at the load outlet and a wheel at the discharge outlet respectively connected to a load wheel and a discharge wheel of a differential. A set of wheels in connection with an intermediate wheel of the differential controls a power-reserve display, but no movement element is provided for a movement-locking operation when the power-reserve is at zero.

Le brevet EP 0 568 499 B1 décrit un dispositif indicateur de réserve de marche pour une montre mécanique. Le dispositif indicateur comprend au moins une roue-étoile avec un organe indicateur, qui est entraînée en rotation lors de la charge ou la décharge du barillet. L'organe indicateur permet d'afficher la réserve de marche de la montre. Cependant rien n'est prévu pour assurer un blocage du mouvement, quand la réserve de marche s'approche de zéro.The patent EP 0 568 499 B1 discloses a power reserve indicator device for a mechanical watch. The indicator device comprises at least one star wheel with an indicator member, which is rotated during loading or unloading of the barrel. The indicator organ makes it possible to display the power reserve of the watch. However nothing is planned to ensure a blocking of the movement, when the power reserve approaches zero.

Le brevet CH 698 752 B1 décrit une pièce d'horlogerie, qui comprend un mécanisme d'indication de la réserve de marche. Elle comprend deux barillets en regard l'un de l'autre et reliés par un arbre commun, qui contrôle le mécanisme d'affichage de la réserve de marche. Cependant rien n'est prévu pour assurer un blocage du mouvement, quand la réserve de marche s'approche de zéro.The patent CH 698 752 B1 describes a timepiece, which includes a mechanism for indicating the power reserve. It includes two barrels facing each other and connected by a common tree, which controls the mechanism for displaying the power reserve. However nothing is planned to ensure a blocking of the movement, when the power reserve approaches zero.

RESUME DE L'INVENTIONSUMMARY OF THE INVENTION

L'invention a donc pour but principal de pallier les inconvénients de l'état de la technique en proposant un mouvement d'horlogerie mécanique muni de moyens de détection de réserve de marche et capable de bloquer le fonctionnement du mouvement, quand la réserve de marche est proche de zéro.The main purpose of the invention is therefore to overcome the drawbacks of the state of the art by proposing a mechanical clockwork movement provided with power reserve detection means and capable of blocking the operation of the movement when the power reserve is present. is close to zero.

A cet effet, la présente invention concerne un mouvement d'horlogerie mécanique muni de moyens de détection de réserve de marche, qui comprend les caractéristiques de la revendication indépendante 1.For this purpose, the present invention relates to a mechanical clockwork movement provided with power reserve detection means, which comprises the characteristics of the independent claim 1.

Des formes particulières d'exécution du mouvement d'horlogerie mécanique sont définies dans les revendications dépendantes 2 à 12.Particular embodiments of the mechanical clockwork are defined in the dependent claims 2 to 12.

Un avantage du mouvement d'horlogerie mécanique réside dans le fait qu'il est possible avec un même élément déplaçable par le mobile à came de commander l'indication de la réserve de marche et d'effectuer un blocage par l'organe de blocage du mouvement, quand la réserve de marche est à zéro. Même avec l'indication de la réserve de marche à zéro, le barillet du système à barillet est encore suffisamment chargé pour faire fonctionner le mouvement d'horlogerie. Cependant avantageusement, le mouvement d'horlogerie mécanique est bloqué par sécurité quand l'indication de réserve de marche est à zéro.An advantage of the mechanical clockwork movement is that it is possible with the same element displaceable by the cam wheel to control the indication of the power reserve and to perform a blocking by the locking member of the movement, when the power reserve is at zero. Even with the indication of the power reserve at zero, the barrel of the barrel system is still sufficiently loaded to operate the watch movement. However, advantageously, the mechanical clockwork is blocked for safety when the power reserve indication is at zero.

BREVE DESCRIPTION DES FIGURESBRIEF DESCRIPTION OF THE FIGURES

Les buts, avantages et caractéristiques d'un mouvement d'horlogerie mécanique muni de moyens de détection de réserve de marche apparaîtront mieux dans la description suivante de manière non limitative en regard des dessins sur lesquels :

  • les figures 1a et 1b représentent une vue tridimensionnelle de dessus d'une forme d'exécution d'un mouvement d'horlogerie mécanique muni de moyens de détection de réserve de marche selon l'invention,
  • la figure 2 représente une vue de dessus du mobile à came du mouvement d'horlogerie mécanique selon l'invention, et
  • la figure 3 représente l'organe de blocage en contact de l'élément déplaçable pour le blocage du mouvement d'horlogerie mécanique lorsque la réserve de marche est à zéro selon l'invention.
The aims, advantages and characteristics of a mechanical clockwork movement provided with power reserve detection means will appear better in the following description in a nonlimiting manner with regard to the drawings in which:
  • the Figures 1a and 1b represent a three-dimensional view from above of an embodiment of a mechanical clockwork movement provided with power reserve detection means according to the invention,
  • the figure 2 represents a top view of the cam wheel of the mechanical clockwork according to the invention, and
  • the figure 3 represents the locking member in contact with the displaceable element for locking the mechanical clockwork when the power reserve is zero according to the invention.

DESCRIPTION DETAILLEE DE L'INVENTIONDETAILED DESCRIPTION OF THE INVENTION

Dans la description suivante, tous les composants d'un mouvement d'horlogerie mécanique muni de moyens de détection de réserve de marche, qui sont bien connus d'un homme du métier dans ce domaine technique ne sont relatés que de manière simplifiée.In the following description, all the components of a mechanical clockwork movement provided with power reserve detection means, which are well known to a person skilled in this technical field, are only described in a simplified manner.

Les figures 1a et 1b représentent une vue tridimensionnelle de dessus des composants du mouvement d'horlogerie mécanique 1 en position de fonctionnement normal en figure 1a et en position de blocage du mouvement en figure 1b. Le mouvement d'horlogerie mécanique 1 comprend au moins un système à barillet non représenté, qui est disposé par exemple sur une face d'une platine de montre du mouvement ou d'une autre plaque support. Ce système à barillet peut être à simple barillet ou à deux barillets ou plus de deux barillets bien connus et disposant d'une sortie de charge et d'une sortie de décharge pour entraîner un rouage de base de temps.The Figures 1a and 1b represent a three-dimensional view from above of the components of the mechanical clockwork movement 1 in the normal operating position in figure 1a and in blocking position of the movement in figure 1b . The mechanical clockwork movement 1 comprises at least one not shown barrel system, which is arranged for example on one side of a movement watch plate or another support plate. This barrel system can be single barrel or two barrel or more than two well known barrels and has a load output and a discharge outlet to drive a time base wheel.

Le mouvement d'horlogerie mécanique 1 comprend par exemple un différentiel 2, qui est monté rotatif autour d'un axe de rotation, et relié respectivement à la sortie de charge et à la sortie de décharge du système à barillet. Le différentiel 2 est relié directement ou par l'intermédiaire d'un étage réducteur ou multiplicateur de vitesse de rotation à la sortie de charge et à la sortie de décharge du système à barillet. De préférence, le différentiel 2 est relié par l'intermédiaire d'un étage réducteur de vitesse de rotation à la sortie de charge et à la sortie de décharge du système à barillet de manière à réduire la rotation pour la détection de la réserve de marche expliquée ci-après.The mechanical clockwork movement 1 comprises for example a differential 2, which is rotatably mounted about an axis of rotation, and connected respectively to the charge outlet and the discharge outlet of the barrel system. The differential 2 is connected directly or via a gear stage or speed multiplier to the load output and the discharge output of the barrel system. Preferably, the differential 2 is connected through a speed reduction gear stage to the load output and the discharge output of the cylinder system so as to reduce the rotation for the detection of the power reserve. explained below.

Le différentiel 2 comprend une première roue de charge 2c et une seconde roue de décharge 2d disposée de préférence sur un même axe de rotation que la première roue de charge. Le différentiel 2 comprend encore, une roue intermédiaire 2i entre la roue de charge 2c et la roue de décharge 2d et en contact de la roue de charge et de la roue de décharge notamment par l'intermédiaire d'un agencement à roulement à billes ou à rouleaux.The differential 2 comprises a first load wheel 2c and a second discharge wheel 2d disposed preferably on the same axis of rotation as the first load wheel. The differential 2 further comprises an intermediate wheel 2i between the load wheel 2c and the discharge wheel 2d and in contact with the load wheel and the discharge wheel in particular by means of a ball bearing arrangement or with rollers.

Dans un fonctionnement normal du mouvement d'horlogerie après une opération de charge du système à barillet, la roue de charge 2c reste fixe sans rotation, alors que la roue de décharge 2d est en rotation. De cette manière, la roue intermédiaire 2i est entraînée en rotation dans une même direction que la roue de décharge 2d, mais avec une vitesse de rotation plus petite que la vitesse de rotation de la roue de décharge 2d.In normal operation of the watch movement after a charging operation of the barrel system, the load wheel 2c remains fixed without rotation, while the discharge wheel 2d is rotating. In this way, the intermediate wheel 2i is rotated in the same direction as the discharge wheel 2d, but with a rotational speed smaller than the rotational speed of the discharge wheel 2d.

La roue intermédiaire 2i du différentiel 2 est reliée à un mobile à came 4 par exemple par l'intermédiaire d'un étage réducteur de vitesse de rotation 3. Cet étage réducteur peut être une roue d'entraînement 3, dont la périphérie extérieure dentée peut engrener avec une denture extérieure de la roue intermédiaire 2i, alors qu'un pignon central 3' de diamètre inférieur vient en contact du mobile à came 4. Ce mobile à came 4 peut être également une roue 4, sur laquelle est disposé, fixement sur l'axe de rotation, un disque ou au moins un secteur angulaire 4' faisant office de came pour entraîner un élément déplaçable 5 pour l'actionnement d'un indicateur de réserve de marche. Le disque ou le secteur angulaire peut venir de matière ou être réalisé avec la roue du mobile 4 en contact du pignon central 3' de la roue d'entraînement 3. La roue du mobile 4 et le pignon central 3' peuvent être avec une denture pour engrener l'un avec l'autre.The intermediate wheel 2i of the differential 2 is connected to a cam follower 4, for example by means of a speed reduction gear stage 3. This reducing stage may be a drive wheel 3, the outer periphery of which may be toothed. meshing with an external toothing of the intermediate wheel 2i, while a central pinion 3 'of smaller diameter comes into contact with the cam follower 4. This cam follower 4 can also be a wheel 4, on which is arranged, fixed on the axis of rotation, a disk or at least one angular sector 4 'acting as a cam for driving a movable member 5 for actuating a power reserve indicator. The disk or the angular sector can come from material or be made with the wheel of the mobile 4 in contact with the central gear 3 'of the drive wheel 3. The wheel of the mobile 4 and the central gear 3' can be with a toothing to mesh with each other.

Comme représenté à la figure 2, la périphérie du disque ou du secteur angulaire 4' définit une courbe avec une distance à l'axe de rotation variable depuis une première extrémité du disque ou du secteur angulaire 4' à une seconde extrémité du disque ou du secteur angulaire. Le rayon ou la distance à l'axe de rotation de la périphérie du disque ou du secteur angulaire est variable de la première extrémité à la seconde extrémité. De préférence, la distance à l'axe de rotation peut décroître au moins sur une partie du disque ou du secteur angulaire entre la première extrémité et la seconde extrémité et de manière régulière. La distance d1 à l'axe de rotation de la première extrémité du disque ou du secteur angulaire est plus grande que la distance d2 à l'axe de rotation de la seconde extrémité du disque ou du secteur angulaire 4' pour contrôler un blocage du mouvement.As represented in figure 2 , the periphery of the disc or the angular sector 4 'defines a curve with a distance to the axis of rotation variable from a first end of the disc or the angular sector 4' to a second end of the disc or the angular sector. The radius or distance to the axis of rotation of the periphery of the disk or the angular sector is variable from the first end to the second end. Preferably, the distance to the axis of rotation can decrease at least on a portion of the disk or the angular sector between the first end and the second end and in a regular manner. The distance d1 to the axis of rotation of the first end of the disk or the angular sector is greater than the distance d2 to the axis of rotation of the second end of the disk or of the angular sector 4 'to control a blockage of the movement .

L'élément déplaçable 5 comprend un coin 15 pour venir en contact de la périphérie du disque ou du secteur angulaire 4' en étant poussé contre la périphérie par un ressort 6 comme montré aux figures 1a et 1b. Ce ressort 6 pousse contre une surface latérale l'élément déplaçable 5 vers la périphérie du disque ou du secteur angulaire 4'. Cet élément déplaçable 5 peut être monté rotatif autour d'un axe de rotation. Comme représenté aux figures 1a et 1b, l'élément déplaçable 5 peut être sous la forme d'un râteau de forme plane, mais il peut être envisagé toute autre forme pour cet élément déplaçable.The displaceable element 5 comprises a wedge 15 for coming into contact with the periphery of the disk or of the angular sector 4 'while being pushed against the periphery by a spring 6 as shown in FIGS. Figures 1a and 1b . This spring 6 pushes against a lateral surface the displaceable element 5 towards the periphery of the disc or the angular sector 4 '. This displaceable element 5 may be rotatably mounted about an axis of rotation. As represented in Figures 1a and 1b the displaceable member 5 may be in the form of a flat-shaped rake, but any other form for this displaceable member may be envisaged.

Lorsque le ou les barillets du système à barillet sont en pleine charge, le coin 15 du râteau 5 vient en contact d'une butée 14 de la première extrémité du disque ou du secteur angulaire 4', où le rayon ou la distance au centre de rotation est le plus grand. Un indicateur de réserve de marche 7 est ainsi prévu pour afficher une indication de charge complète. Cet indicateur de réserve de marche comprend une roue d'affichage 7 avec éventuellement une aiguille non représentée fixée sur l'axe de rotation de la roue d'affichage 7. La roue d'affichage 7 est par exemple entraînée en rotation en contact avec une surface intérieure d'une ouverture 17 de forme oblongue du râteau 5 à distance de son axe de rotation. La roue d'affichage 7 peut être dentée pour engrener avec une denture intérieure de l'ouverture 17 de forme oblongue du râteau 5.When the barrel or cylinders of the barrel system are fully loaded, the corner 15 of the rake 5 comes into contact with a stop 14 of the first end of the disk or the angular sector 4 ', where the radius or distance to the center of rotation is the largest. A power reserve indicator 7 is thus provided to display a full charge indication. This power reserve indicator comprises a display wheel 7 with possibly a not shown needle fixed on the axis of rotation of the display wheel 7. The display wheel 7 is for example rotated in contact with a wheel. inner surface of an opening 17 oblong rake 5 away from its axis of rotation. The display wheel 7 may be toothed to mesh with an internal toothing of the oblong-shaped opening 17 of the rake 5.

Lorsque la réserve de marche s'approche de zéro, le rayon ou la distance du coin 15 du râteau 5 en contact au centre de rotation est le plus petit à la seconde extrémité du disque ou du secteur angulaire. Dans ce cas de figure, le râteau 5 comprend une partie de blocage 15' venant en contact d'un organe de blocage 10. Cet organe de blocage 10 est lié directement en sortie de décharge du système à barillet ou à la roue de décharge 2d du différentiel 2 pour bloquer le mouvement de montre, quand la réserve de marche (RDM) est à zéro.When the power reserve approaches zero, the radius or distance from the corner 15 of the rake 5 in contact with the center of rotation is the smallest at the second end of the disk or the angular sector. In this case, the rake 5 comprises a locking portion 15 'coming into contact with a locking member 10. This locking member 10 is directly connected to the discharge outlet of the barrel system or to the discharge wheel 2d differential 2 to block the watch movement, when the power reserve (RDM) is zero.

Cet organe de blocage 10 est un mobile intermédiaire entre la roue de sortie de décharge du système à barillet et la roue de décharge 2d du différentiel et peut faire office également d'étage réducteur. Il peut être envisagé aussi d'avoir l'organe de blocage 10 lié à d'autres roues d'un étage réducteur depuis la sortie de décharge du système à barillet jusqu'à la roue de décharge 2d du différentiel 2. L'organe de blocage 10 prend la forme d'une tige 11 avec une portion dentée ou non, qui est montée rotative. Cette portion en forme de roue 11' sur la tige 11 peut venir en contact d'une roue de sortie du système à barillet ou préférentiellement de la roue de décharge 2d du différentiel 2. Au moins une dent 12' sur l'organe de blocage 10 monté rotatif est prévue pour être accrochée par un cran 15' de la partie de blocage du râteau 5, lorsque la réserve de marche est à zéro.This locking member 10 is an intermediate mobile between the discharge discharge wheel of the barrel system and the discharge wheel 2d of the differential and can also act as a reducing stage. It can also be envisaged to have the blocking member 10 connected to other wheels of a reducing stage from the discharge outlet of the barrel system to the discharge wheel 2d of the differential 2. The blocking 10 takes the form of a rod 11 with a toothed portion or not, which is rotatably mounted. This wheel-shaped portion 11 'on the rod 11 can come into contact with an output wheel of the barrel system or preferably with the discharge wheel 2d of the differential 2. At least one tooth 12' on the locking member 10 rotatably mounted is provided to be hooked by a notch 15 'of the blocking portion of the rake 5, when the power reserve is zero.

Sur les figures 1a et 1b et 4, l'organe de blocage 10 comprend donc une roue en forme d'étoile 12 par exemple avec trois dents 12', qui est fixée sur la tige 11 au-dessus de la portion en forme de roue 11' montée sur la tige 11 en contact de la roue de décharge 2d du différentiel 2. Cependant le nombre de dents de blocage prévu n'est pas important pour autant qu'une des dents vienne en contact du cran 15' de la partie de blocage du râteau 5.On the Figures 1a and 1b and 4, the locking member 10 thus comprises a star-shaped wheel 12 for example with three teeth 12 ', which is fixed on the rod 11 above the wheel-shaped portion 11' mounted on the rod 11 in contact with the discharge wheel 2d of the differential 2. However, the number of locking teeth provided is not important provided that one of the teeth comes into contact with the notch 15 'of the locking portion of the rake 5.

A partir de la description qui vient d'être faite, plusieurs variantes de réalisation du mouvement mécanique d'horlogerie à moyens de détection de réserve de marche peuvent être conçues par l'homme du métier sans sortir du cadre de l'invention définie par les revendications. Il peut être prévu que l'élément déplaçable pour actionner l'indicateur de réserve de marche et venir en contact de l'organe de blocage lorsque la réserve de marche est à zéro soit déplacé de manière rectiligne et non de manière rotative par le mobile à came. Le mouvement d'horlogerie peut se présenter sous la forme d'un module avec tous les éléments disposés dans ledit module.From the description that has just been given, several embodiments of the mechanical watchmaking movement with power reserve detection means can be designed by those skilled in the art without departing from the scope of the invention defined by the claims. It can be provided that the movable member for actuating the power reserve indicator and coming into contact with the locking member when the power reserve is at zero is moved rectilinearly and not rotatably by the moving member. cam. The watch movement may be in the form of a module with all the elements arranged in said module.

Claims (12)

Mouvement d'horlogerie mécanique (1) à indication de la réserve de marche, comprenant au moins un système à barillet en liaison avec une roue de charge (2c) d'un différentiel (2) et une roue de décharge (2d) du différentiel (2), une roue intermédiaire (2i) du différentiel (2) étant en liaison avec au moins un mobile à came (4) pour l'entraîner en rotation, un élément déplaçable (5) en contact avec le mobile à came (4) agissant sur un indicateur (7) de réserve de marche à afficher,
caractérisé en ce que l'élément déplaçable (5) est agencé pour venir activer un organe de blocage (10) pour bloquer le mouvement à une sortie de décharge du système à barillet ou en contact de la roue de décharge (2d) du différentiel (2), quand la réserve de marche est à zéro.Mechanical clockwork movement (1) with indication of the power reserve, comprising at least one cylinder system in connection with a load wheel (2c) of a differential (2) and a differential discharge wheel (2d) (2), an intermediate wheel (2i) of the differential (2) being connected with at least one cam follower (4) for driving it in rotation, a displaceable element (5) in contact with the cam follower (4) ) acting on a power reserve indicator (7) to be displayed,
characterized in that the displaceable member (5) is arranged to activate a locking member (10) to block movement at a discharge outlet of the barrel system or in contact with the differential discharge wheel (2d) ( 2), when the power reserve is at zero. Mouvement d'horlogerie mécanique (1) selon la revendication 1, caractérisé en ce que le mobile à came (4) est entraîné en rotation par l'intermédiaire d'un étage (3) réducteur de vitesse de rotation disposé entre la roue intermédiaire (2i) et une roue du mobile à came (4).Mechanical clockwork movement (1) according to claim 1, characterized in that the cam follower (4) is rotated by means of a speed reduction gear stage (3) arranged between the intermediate wheel ( 2i) and a wheel of the cam follower (4). Mouvement d'horlogerie mécanique (1) selon la revendication 2, caractérisé en ce que l'étage réducteur (3) comprend une roue d'entraînement (3) en contact de la roue intermédiaire (2i) du différentiel (2), et en ce qu'un pignon central (3') de la roue d'entraînement (3) est en contact de la roue du mobile à came (4).Mechanical watch movement (1) according to claim 2, characterized in that the reduction stage (3) comprises a drive wheel (3) contacting the intermediate wheel (2i) of the differential (2), and that a central gear (3 ') of the drive wheel (3) is in contact with the wheel of the movable cam (4). Mouvement d'horlogerie mécanique (1) selon la revendication 1, caractérisé en ce que le mobile à came (4) comprend une roue en liaison avec la roue intermédiaire (2i) du différentiel (2) et une came (4') au-dessus de la roue pour être en contact d'un coin (15) de l'élément déplaçable (5).Mechanical clockwork movement (1) according to claim 1, characterized in that the cam follower (4) comprises a wheel connected to the intermediate wheel (2i) of the differential (2) and a cam (4 ') to above the wheel to be in contact with a wedge (15) of the movable element (5). Mouvement d'horlogerie mécanique (1) selon la revendication 4, caractérisé en ce que la came (4') du mobile à came (4) est un disque ou un secteur angulaire, disposé sur l'axe de rotation de la roue du mobile à came (4), la distance de l'axe de rotation à la périphérie du disque ou du secteur angulaire (4') en contact du coin (15) de l'élément déplaçable (5) étant décroissante entre une première extrémité et une seconde extrémité du disque ou du secteur angulaire de manière à déplacer l'élément déplaçable (5) entre une position de charge complète et une position de blocage du mouvement.Mechanical clockwork movement (1) according to claim 4, characterized in that the cam (4 ') of the cam follower (4) is a disk or an angular sector disposed on the axis of rotation of the wheel of the mobile at cam (4), the distance of the axis of rotation at the periphery of the disk or the angular sector (4 ') in contact with the wedge (15) of the displaceable element (5) decreasing between a first end and a second end of the disc or the angular sector so as to move the movable member (5) between a full load position and a motion lock position. Mouvement d'horlogerie mécanique (1) selon la revendication 5, caractérisé en ce que la came (4') comprend une butée (14) à la première extrémité, où la distance à l'axe de rotation est la plus grande et contre laquelle le coin (15) de l'élément déplaçable (5) s'appuie en position de charge complète du système à barillet.Mechanical clockwork movement (1) according to claim 5, characterized in that the cam (4 ') comprises a stop (14) at the first end, where the distance to the axis of rotation is greatest and against which the wedge (15) of the displaceable element (5) bears in the full load position of the barrel system. Mouvement d'horlogerie mécanique (1) selon la revendication 5, caractérisé en ce que la périphérie de la came 4' en forme de disque définit une courbe avec une distance à l'axe de rotation variable depuis la première extrémité du disque à la seconde extrémité du disque.Mechanical clockwork movement (1) according to claim 5, characterized in that the periphery of the disk-shaped cam 4 'defines a curve with a distance to the axis of rotation variable from the first end of the disc to the second end of the disc. Mouvement d'horlogerie mécanique (1) selon la revendication 5, caractérisé en ce que l'élément déplaçable (5) est un râteau monté rotatif autour d'un axe de rotation.Mechanical clockwork movement (1) according to claim 5, characterized in that the displaceable element (5) is a rake rotatably mounted about an axis of rotation. Mouvement d'horlogerie mécanique (1) selon la revendication 8, caractérisé en ce que le râteau (5) est poussé contre le mobile à came (4) par l'intermédiaire d'un ressort (6).Mechanical clockwork movement (1) according to claim 8, characterized in that the rake (5) is pushed against the cam follower (4) via a spring (6). Mouvement d'horlogerie mécanique (1) selon la revendication 8, caractérisé en ce que le râteau (5) comprend une ouverture (17) de forme oblongue dans laquelle est placée une roue (7) de l'indicateur de réserve de marche, la roue (7) de l'indicateur étant en contact d'une surface intérieure de l'ouverture (17) de manière à être entraînée en rotation par le mouvement du râteau (5) poussé par le mobile à came (4).Mechanical clockwork movement (1) according to claim 8, characterized in that the rake (5) comprises an oblong opening (17) in which is placed a wheel (7) of the power reserve indicator, the wheel (7) of the indicator being in contact with an inner surface of the opening (17) so as to be rotated by the movement of the rake (5) pushed by the cam follower (4). Mouvement d'horlogerie mécanique (1) selon la revendication 8, caractérisé en ce que le râteau (5) est de forme plane avec un cran (15') sur une partie de blocage venant en contact de l'organe de blocage (10) dans une position de blocage, quand le coin (15) du râteau (5) est à la seconde extrémité du disque ou du secteur angulaire de la came (4').Mechanical clockwork movement (1) according to claim 8, characterized in that the rake (5) is of planar shape with a notch (15 ') on a locking portion engaging the locking member (10) in a locking position, when the wedge (15) of the rake (5) is at the second end of the disc or the angular sector of the cam (4). '). Mouvement d'horlogerie mécanique (1) selon la revendication 1, caractérisé en ce que l'organe de blocage (10) comprend une tige (11) montée rotative et avec une portion en forme de roue en contact d'une roue de sortie de décharge du système à barillet ou de la roue de décharge (2d) du différentiel (2), et en ce que l'organe de blocage (10) comprend une roue-étoile (12) à au moins une dent (12') de blocage fixée sur la tige (11) pour être accrochée en position de blocage du mouvement par un cran (15') de l'élément déplaçable (5), quand la réserve de marche est à zéro.Mechanical clockwork movement (1) according to claim 1, characterized in that the locking member (10) comprises a rod (11) rotatably mounted and with a wheel-shaped portion in contact with an output wheel of discharge of the barrel system or the discharge wheel (2d) of the differential (2), and in that the locking member (10) comprises a star wheel (12) with at least one tooth (12 ') of blocking fixed on the rod (11) to be hooked in the position of blocking movement by a notch (15 ') of the movable element (5), when the power reserve is zero.
EP16192232.3A 2016-10-04 2016-10-04 Mechanical clock movement with power-reserve detection Active EP3306415B1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP16192232.3A EP3306415B1 (en) 2016-10-04 2016-10-04 Mechanical clock movement with power-reserve detection
JP2017184573A JP6411608B2 (en) 2016-10-04 2017-09-26 Mechanical timer movement with power reserve detection
CN201710888573.6A CN107894700B (en) 2016-10-04 2017-09-27 Mechanical timepiece movement with power reserve detection
US15/724,833 US10162309B2 (en) 2016-10-04 2017-10-04 Mechanical timepiece movement with power reserve detection
HK18111499.3A HK1252110A1 (en) 2016-10-04 2018-09-06 Mechanical timepiece movement with power reserve detection

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP16192232.3A EP3306415B1 (en) 2016-10-04 2016-10-04 Mechanical clock movement with power-reserve detection

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EP3306415A1 true EP3306415A1 (en) 2018-04-11
EP3306415B1 EP3306415B1 (en) 2020-05-20

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EP (1) EP3306415B1 (en)
JP (1) JP6411608B2 (en)
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3992727A1 (en) * 2020-10-30 2022-05-04 ETA SA Manufacture Horlogère Suisse Mechanical clock movement with running reserve detection

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3333637B1 (en) * 2016-12-12 2021-09-22 ETA SA Manufacture Horlogère Suisse Mechanical clock movement with power reserve detection
EP3627233B1 (en) * 2018-09-19 2022-03-30 ETA SA Manufacture Horlogère Suisse Timepiece power reserve indicator mechanism

Citations (5)

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EP0568499B1 (en) 1992-04-29 1997-05-21 Exidel Sa Device for displaying the power-reserve of a watch
EP1760548A1 (en) * 2005-09-01 2007-03-07 Montres Journe SA Timepiece incorporating a mechanism for the indication of time by a striking mechanism
CH698752B1 (en) 2004-11-10 2009-10-15 Frank Mueller Watchland S A Timepiece with indication of the power reserve mechanism.
EP2503405A1 (en) * 2011-03-22 2012-09-26 Montres Breguet SA Mechanism for selectively stopping the striking mechanism of a timepiece according to the available motor torque
CH710320A2 (en) * 2014-10-31 2016-05-13 Le Cercle Des Horlogers Sa Timepiece comprising a source of mechanical energy and a control member.

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ATE428958T1 (en) * 1999-08-04 2009-05-15 Piguet Frederic Sa DEVICE FOR DISPLAYING THE POWER RESERVE OF A WATCH
EP2560057B1 (en) * 2011-08-17 2014-04-02 ETA SA Manufacture Horlogère Suisse Timepiece movement with reduced height and large power reserve

Patent Citations (5)

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Publication number Priority date Publication date Assignee Title
EP0568499B1 (en) 1992-04-29 1997-05-21 Exidel Sa Device for displaying the power-reserve of a watch
CH698752B1 (en) 2004-11-10 2009-10-15 Frank Mueller Watchland S A Timepiece with indication of the power reserve mechanism.
EP1760548A1 (en) * 2005-09-01 2007-03-07 Montres Journe SA Timepiece incorporating a mechanism for the indication of time by a striking mechanism
EP2503405A1 (en) * 2011-03-22 2012-09-26 Montres Breguet SA Mechanism for selectively stopping the striking mechanism of a timepiece according to the available motor torque
CH710320A2 (en) * 2014-10-31 2016-05-13 Le Cercle Des Horlogers Sa Timepiece comprising a source of mechanical energy and a control member.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3992727A1 (en) * 2020-10-30 2022-05-04 ETA SA Manufacture Horlogère Suisse Mechanical clock movement with running reserve detection
US11971687B2 (en) 2020-10-30 2024-04-30 Eta Sa Manufacture Horlogère Suisse Mechanical horological movement with power reserve detection

Also Published As

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HK1252110A1 (en) 2019-05-17
EP3306415B1 (en) 2020-05-20
JP2018059920A (en) 2018-04-12
JP6411608B2 (en) 2018-10-24
CN107894700A (en) 2018-04-10
US10162309B2 (en) 2018-12-25
US20180095422A1 (en) 2018-04-05
CN107894700B (en) 2019-12-06

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