EP3306416B1 - Mechanical clock movement with power-reserve detection - Google Patents

Mechanical clock movement with power-reserve detection Download PDF

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Publication number
EP3306416B1
EP3306416B1 EP16192251.3A EP16192251A EP3306416B1 EP 3306416 B1 EP3306416 B1 EP 3306416B1 EP 16192251 A EP16192251 A EP 16192251A EP 3306416 B1 EP3306416 B1 EP 3306416B1
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EP
European Patent Office
Prior art keywords
wheel
locking
rotation
timepiece movement
mechanical timepiece
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.)
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Application number
EP16192251.3A
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German (de)
French (fr)
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EP3306416A1 (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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Application filed by ETA SA Manufacture Horlogere Suisse filed Critical ETA SA Manufacture Horlogere Suisse
Priority to EP16192251.3A priority Critical patent/EP3306416B1/en
Priority to US15/681,458 priority patent/US10365612B2/en
Priority to JP2017160964A priority patent/JP6405429B2/en
Priority to CN201710890061.3A priority patent/CN107894699B/en
Publication of EP3306416A1 publication Critical patent/EP3306416A1/en
Priority to HK18111497.5A priority patent/HK1252258A1/en
Application granted granted Critical
Publication of EP3306416B1 publication Critical patent/EP3306416B1/en
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    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • 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
    • G04B27/00—Mechanical devices for setting the time indicating means
    • G04B27/02—Mechanical devices for setting the time indicating means by making use of the winding means
    • G04B27/04—Mechanical devices for setting the time indicating means by making use of the winding means with clutch wheel
    • G04B27/045—Changing the winding position to the setting position and vice versa is done with an independant part of the winding or setting mechanism
    • 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
    • G04B1/12—Driving mechanisms with mainspring with several mainsprings
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B13/00—Gearwork
    • G04B13/02—Wheels; Pinions; Spindles; Pivots
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B3/00—Normal winding of clockworks by hand or mechanically; Winding up several mainsprings or driving weights simultaneously
    • G04B3/04—Rigidly-mounted keys, knobs or crowns
    • G04B3/043—Locking of the operating element, also by mounting in a concealed place
    • 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
    • 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
    • G04B9/02—Devices controlled by such state, e.g. device affording protection means against overwinding

Definitions

  • the present invention relates to a mechanical clockwork movement provided with power reserve detection means.
  • the watch movement comprises at least one barrel system in connection with a differential load wheel and a differential discharge wheel.
  • 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 comprises two barrels facing each other and connected by a common tree, which controls the display mechanism of the power reserve. However nothing is planned to ensure a blocking of the movement, when the power reserve approaches zero.
  • the patent application CH 710 320 A2 describes a timepiece, which comprises a source of mechanical energy, such as a cylinder and a control member in connection with a control device in the watch case.
  • the control device comprises a power reserve wheel pivotally mounted on the frame and connected to the barrel by a differential so that the angular position of the power reserve wheel is a function of the load level of the barrel.
  • a control cam is pivotally mounted on the same axis as the power reserve wheel.
  • the control cam has a light extending in a circular arc in which is housed a pin secured to the power reserve wheel.
  • a spiral spring is mounted between the power reserve wheel and the cam.
  • a stop device which includes a stop rocker, to block the movement when the power reserve is close to 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 means for detecting the reserve of walk, which includes the features of the independent claim 1.
  • An advantage of the mechanical clockwork movement is that it is possible to use a locking wheel, which causes the power reserve indicator to block the movement by means of a locking element, which can be a finger disposed on the axis of the mobile.
  • the locking wheel is driven by an intermediate wheel of the differential.
  • the finger comes into contact with the differential discharge wheel, when the power reserve is 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 nearly 2 hours of time.
  • the figures 1a and 1b represent a three-dimensional view from above of certain components of the mechanical clockwork movement 1 in 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 can be arranged on one side of a movement watch plate or another support plate.
  • This barrel system can be single barrel or two barrels well known and having a load output and a discharge outlet for driving in particular a time base wheel not shown.
  • the mechanical clockwork movement 1 comprises, for example on a face of a watch plate 100 or a support plate, a differential 2 rotatably mounted about an axis of rotation and connected respectively to the charge output and to the discharge outlet of the barrel system.
  • the differential 2 is connected directly or via a gear stage or speed reduction chain 3, 4 to the load output and the discharge output of the cylinder system.
  • the differential 2 can be connected via a speed reduction stage 3, 4 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.
  • a set of wheels for example gear wheels 4a, 4b, 4c, 4d, 4e can be provided between a discharge wheel of the barrel system and the differential 2.
  • a set of wheels for example of gear wheels 3a, 3b, 3c, 3d can be used between a winding member and the charging outlet of the barrel system, which rather defines a multiplier stage in this sense.
  • 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 2c.
  • 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 first load wheel 2c can drive a first wheel 3a of the load wheel assembly 3, while the second wheel of discharge 2d can be rotated by the final wheel 4a of the discharge wheel assembly 4.
  • 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 load wheel 2c is driven in a direction of rotation opposite to the direction of rotation of the discharge wheel. This has the consequence of driving the intermediate wheel 2i also in the direction of rotation of the load wheel 2c, since the rotation generated at the load wheel 2c is greater in this case than the rotation of the discharge wheel 2d.
  • the intermediate wheel 2i of the differential 2 is connected to a locking wheel 5.
  • This locking wheel 5 can rotate about an axis of rotation of a maximum power reserve position as shown in FIG. Figures 2a and 3a at a power reserve position at zero, which is a lock position of the watch movement, as shown in FIGS. figures 2b and 3b .
  • the locking wheel 5 comprises a first wheel 5 ', which is fixed on the axis of rotation. This first wheel 5 'is in contact with the intermediate wheel 2i of the differential 2 and driven by said intermediate wheel 2i.
  • the first wheel 5 ' may comprise a toothing for meshing with a toothing of the intermediate wheel 2i.
  • the locking wheel 5 may further comprise a second wheel 5 "fixed on the axis of rotation and arranged coaxially above and parallel to the first wheel 5 'This second wheel 5" is intended to be directly connected to a power reserve indicator 7 or via a drive wheel 6, 6 'to the power reserve indicator 7.
  • the locking wheel 5 may also comprise only one wheel 5 'in contact with the intermediate wheel 2 1 of the differential, and connected directly to the power reserve indicator 7 or via the drive wheel 6, 6 'to the power reserve indicator 7.
  • the locking mobile 5 further comprises a locking element 15 mounted on the axis of rotation and intended to come into contact with the discharge wheel 2d of the differential 2 for the blocking of the movement, when the power reserve is zero.
  • the locking element 15 is preferably arranged between the first wheel 5 'and the second wheel 5 "of the locking wheel 5.
  • This locking element can be in the form of a finger 15 with a portion 15' of contact With the discharge wheel 2d in the locked position, this portion 15 'of contact is preferably a tooth 15' inserted between two teeth of a toothing of the discharge wheel 2d of the differential 2 to block the movement.
  • the finger 15 is rotatably mounted on the axis of rotation and further provided with a lug 15 "disposed in a banana-shaped opening 25 made in the first wheel 5 'of the locking wheel 5
  • the lug 15 "of the finger 15 comes into abutment with one end of the banana-shaped opening 25 of the first wheel 5 ', which makes it possible to drive the finger 15 of the maximum power reserve position as shown in FIGS. figures 1a , 2a and 3a at the power-reserve position to zero as shown in figures 1b , 2b and 3b which corresponds to a locking position of the watch movement.
  • the banana-shaped opening 25 describes a circular arc around the axis of rotation of the locking device 5, for example at an angle between 10 ° and 60 °.
  • the locking element may be formed on the first wheel 5 'projecting in the form of a notch, which is intended to come into contact with the discharge wheel 2d of the differential in the locked position when the power reserve is at zero.
  • the drive wheel 6 is rotated by the second wheel 5 "of the locking wheel 5.
  • the periphery of this drive wheel 6 may comprise a toothing for meshing with an external toothing provided on the periphery of the second wheel 5 ".
  • a central gear 6 'of the drive wheel 6 of smaller diameter comes into contact with a display wheel 7 of the power reserve indicator.
  • a needle can be provided fixed on the axis of rotation of the display wheel 7 mounted on the watch plate 100.
  • the power reserve indication needle can be observed on a watch dial for the indication. of the power reserve.
  • the blocking member of the locking member can also be driven in a rectilinear manner by the first wheel of the locking wheel to block the differential discharge wheel when the power reserve is zero.
  • 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)
  • Retarders (AREA)
  • Electromechanical Clocks (AREA)

Description

DOMAINE TECHNIQUETECHNICAL AREA

La présente invention concerne un mouvement d'horlogerie mécanique muni de moyens de détection de réserve de marche. Le mouvement d'horlogerie comprend au moins un système à barillet en liaison avec une roue de charge d'un différentiel et une roue de décharge du différentiel.The present invention relates to a mechanical clockwork movement provided with power reserve detection means. The watch movement comprises at least one barrel system in connection with a differential load wheel and a differential discharge wheel.

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 comprises two barrels facing each other and connected by a common tree, which controls the display mechanism of the power reserve. However nothing is planned to ensure a blocking of the movement, when the power reserve approaches zero.

La demande de brevet CH 710 320 A2 décrit une pièce d'horlogerie, qui comprend une source d'énergie mécanique, telle qu'un barillet et un organe de commande en liaison avec un dispositif de commande dans la boîte de montre. Le dispositif de commande comporte une roue de réserve de marche montée pivotante sur le bâti et reliée au barillet par un différentiel pour que la position angulaire de la roue de réserve de marche soit fonction du niveau de charge du barillet. Une came de commande est montée pivotante sur le même axe que la roue de réserve de marche. La came de commande a une lumière s'étendant en arc de cercle dans laquelle est logée une cheville solidaire de la roue de réserve de marche. Un ressort spiral est monté entre la roue de réserve de marche et la came. En liaison avec le dispositif de commande, il est encore prévu un dispositif d'arrêt, qui comprend une bascule d'arrêt, pour bloquer le mouvement quand la réserve de marche est proche de zéro.The patent application CH 710 320 A2 describes a timepiece, which comprises a source of mechanical energy, such as a cylinder and a control member in connection with a control device in the watch case. The control device comprises a power reserve wheel pivotally mounted on the frame and connected to the barrel by a differential so that the angular position of the power reserve wheel is a function of the load level of the barrel. A control cam is pivotally mounted on the same axis as the power reserve wheel. The control cam has a light extending in a circular arc in which is housed a pin secured to the power reserve wheel. A spiral spring is mounted between the power reserve wheel and the cam. In connection with the control device, there is further provided a stop device, which includes a stop rocker, to block the movement when the power reserve is close to 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 means for detecting the reserve of walk, which includes the features of the independent claim 1.

Des formes particulières d'exécution du mouvement d'horlogerie mécanique sont définies dans les revendications dépendantes 2 à 11.Particular embodiments of the mechanical clockwork are defined in the dependent claims 2 to 11.

Un avantage du mouvement d'horlogerie mécanique réside dans le fait qu'il est possible d'utiliser un mobile de blocage, qui entraîne l'indicateur de réserve de marche pour opérer un blocage du mouvement au moyen d'un élément de blocage, qui peut être un doigt disposé sur l'axe du mobile. Le mobile de blocage est entraîné par une roue intermédiaire du différentiel. De préférence le doigt vient en contact de la roue de décharge du différentiel, lorsque 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 près de 2 heures de temps.An advantage of the mechanical clockwork movement is that it is possible to use a locking wheel, which causes the power reserve indicator to block the movement by means of a locking element, which can be a finger disposed on the axis of the mobile. The locking wheel is driven by an intermediate wheel of the differential. Preferably the finger comes into contact with the differential discharge wheel, when the power reserve is 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 nearly 2 hours of time.

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,
  • les figures 2a et 2b représentent une vue de dessus plus détaillée des figures 1a et 1b du mouvement d'horlogerie mécanique selon l'invention, et
  • les figures 3a et 3b représentent une vue tridimensionnelle partielle du différentiel et du mobile de blocage en position de réserve de marche maximum et en position de réserve marche minimum du mouvement d'horlogerie mécanique 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 Figures 2a and 2b represent a more detailed top view of figures 1a and 1b of the mechanical clockwork according to the invention, and
  • the Figures 3a and 3b represent a partial three-dimensional view of the differential and the locking wheel in the maximum power-reserve position and in the minimum on-reserve position of the mechanical clockwork 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 de certains 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 peut être disposé 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 bien connus et disposant d'une sortie de charge et d'une sortie de décharge pour entraîner notamment un rouage de base de temps non représenté.The figures 1a and 1b represent a three-dimensional view from above of certain components of the mechanical clockwork movement 1 in 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 can be arranged on one side of a movement watch plate or another support plate. This barrel system can be single barrel or two barrels well known and having a load output and a discharge outlet for driving in particular a time base wheel not shown.

Le mouvement d'horlogerie mécanique 1 comprend par exemple sur une face d'une platine de montre 100 ou d'une plaque support, un différentiel 2 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 chaîne de réduction de vitesse de rotation 3, 4 à la sortie de charge et à la sortie de décharge du système à barillet. De préférence, le différentiel 2 peut être relié par l'intermédiaire d'un étage réducteur 3, 4 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. Depuis la sortie de décharge du système à barillet, un ensemble de roues, par exemple de roues d'engrenages 4a, 4b, 4c, 4d, 4e peut être prévu entre une roue de sortie de décharge du système à barillet et le différentiel 2. Bien entendu, pour la charge du système à barillet, un ensemble de roues, par exemple de roues d'engrenage 3a, 3b, 3c, 3d peut être utilisé entre un organe de remontage et la sortie de charge du système à barillet, ce qui définit plutôt un étage multiplicateur dans ce sens.The mechanical clockwork movement 1 comprises, for example on a face of a watch plate 100 or a support plate, a differential 2 rotatably mounted about an axis of rotation and connected respectively to the charge output and to the discharge outlet of the barrel system. The differential 2 is connected directly or via a gear stage or speed reduction chain 3, 4 to the load output and the discharge output of the cylinder system. Preferably, the differential 2 can be connected via a speed reduction stage 3, 4 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. From the discharge outlet of the barrel system, a set of wheels, for example gear wheels 4a, 4b, 4c, 4d, 4e can be provided between a discharge wheel of the barrel system and the differential 2. Of course, for the charging of the barrel system, a set of wheels, for example of gear wheels 3a, 3b, 3c, 3d can be used between a winding member and the charging outlet of the barrel system, which rather defines a multiplier stage in this sense.

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 2c. 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. La première roue de charge 2c peut entraîner une première roue 3a de l'ensemble de roues de charge 3, alors que la seconde roue de décharge 2d peut être entraînée en rotation par la roue finale 4a de l'ensemble de roues de décharge 4.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 2c. 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 first load wheel 2c can drive a first wheel 3a of the load wheel assembly 3, while the second wheel of discharge 2d can be rotated by the final wheel 4a of the discharge wheel assembly 4.

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. Par contre pour une opération de charge du système à barillet, la roue de charge 2c est entraînée dans une direction de rotation opposée à la direction de rotation de la roue de décharge. Cela a pour conséquence d'entraîner la roue intermédiaire 2i aussi dans la direction de rotation de la roue de charge 2c, étant donné que la rotation générée à la roue de charge 2c est plus grande dans ce cas que la 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. On the other hand, for a charging operation of the barrel system, the load wheel 2c is driven in a direction of rotation opposite to the direction of rotation of the discharge wheel. This has the consequence of driving the intermediate wheel 2i also in the direction of rotation of the load wheel 2c, since the rotation generated at the load wheel 2c is greater in this case than the rotation of the discharge wheel 2d.

Comme également montrée aux figures 2a, 2b, 3a et 3b, la roue intermédiaire 2i du différentiel 2 est reliée à un mobile de blocage 5. Ce mobile de blocage 5 peut tourner autour d'un axe de rotation d'une position de réserve de marche maximale comme représenté aux figures 2a et 3a, à une position de réserve de marche à zéro, qui est une position de blocage du mouvement d'horlogerie, comme représenté aux figures 2b et 3b.As also shown to Figures 2a, 2b , 3a and 3b , the intermediate wheel 2i of the differential 2 is connected to a locking wheel 5. This locking wheel 5 can rotate about an axis of rotation of a maximum power reserve position as shown in FIG. Figures 2a and 3a at a power reserve position at zero, which is a lock position of the watch movement, as shown in FIGS. figures 2b and 3b .

Le mobile de blocage 5 comprend une première roue 5', qui est fixée sur l'axe de rotation. Cette première roue 5' est en contact de la roue intermédiaire 2i du différentiel 2 et entraînée par ladite roue intermédiaire 2i. La première roue 5' peut comprendre une denture pour engrener avec une denture de la roue intermédiaire 2i. Le mobile de blocage 5 peut comprendre encore une seconde roue 5" fixée sur l'axe de rotation et disposée de manière coaxiale au-dessus et parallèle à la première roue 5'. Cette seconde roue 5" est prévue pour être reliée directement à un indicateur 7 de réserve de marche ou par l'intermédiaire d'une roue d'entraînement 6, 6' à l'indicateur 7 de réserve de marche.The locking wheel 5 comprises a first wheel 5 ', which is fixed on the axis of rotation. This first wheel 5 'is in contact with the intermediate wheel 2i of the differential 2 and driven by said intermediate wheel 2i. The first wheel 5 'may comprise a toothing for meshing with a toothing of the intermediate wheel 2i. The locking wheel 5 may further comprise a second wheel 5 "fixed on the axis of rotation and arranged coaxially above and parallel to the first wheel 5 'This second wheel 5" is intended to be directly connected to a power reserve indicator 7 or via a drive wheel 6, 6 'to the power reserve indicator 7.

Il est à noter que le mobile de blocage 5 peut aussi ne comprendre qu'une seule roue 5' en contact de la roue intermédiaire 2i du différentiel, et reliée directement à l'indicateur 7 de réserve de marche ou par l'intermédiaire de la roue d'entraînement 6, 6' à l'indicateur 7 de réserve de marche.It should be noted that the locking wheel 5 may also comprise only one wheel 5 'in contact with the intermediate wheel 2 1 of the differential, and connected directly to the power reserve indicator 7 or via the drive wheel 6, 6 'to the power reserve indicator 7.

Le mobile de blocage 5 comprend encore un élément de blocage 15 monté sur l'axe de rotation et destiné à venir en contact de la roue de décharge 2d du différentiel 2 pour le blocage du mouvement, quand la réserve de marche est à zéro. L'élément de blocage 15 est de préférence disposé entre la première roue 5' et la seconde roue 5" du mobile de blocage 5. Cet élément de blocage peut se présenter sous la forme d'un doigt 15 avec une portion 15' de contact avec la roue de décharge 2d en position de blocage. Cette portion 15' de contact est de préférence une dent 15' venant s'insérer entre deux dents d'une denture de la roue de décharge 2d du différentiel 2 pour bloquer le mouvement.The locking mobile 5 further comprises a locking element 15 mounted on the axis of rotation and intended to come into contact with the discharge wheel 2d of the differential 2 for the blocking of the movement, when the power reserve is zero. The locking element 15 is preferably arranged between the first wheel 5 'and the second wheel 5 "of the locking wheel 5. This locking element can be in the form of a finger 15 with a portion 15' of contact With the discharge wheel 2d in the locked position, this portion 15 'of contact is preferably a tooth 15' inserted between two teeth of a toothing of the discharge wheel 2d of the differential 2 to block the movement.

Il peut encore être prévu que le doigt 15 est monté libre de rotation sur l'axe de rotation et muni encore d'un ergot 15" disposé dans une ouverture 25 en forme de banane réalisée dans la première roue 5' du mobile de blocage 5. Lors de la rotation de la roue intermédiaire 2i du différentiel, l'ergot 15" du doigt 15 vient en appui d'une extrémité de l'ouverture 25 en forme de banane de la première roue 5', ce qui permet d'entraîner le doigt 15 de la position de réserve de marche maximale comme représenté aux figures 1a, 2a et 3a, à la position de réserve de marche à zéro comme représenté aux figures 1b, 2b et 3b, qui correspond à une position de blocage du mouvement d'horlogerie. L'ouverture en forme de banane 25 décrit un arc de cercle autour de l'axe de rotation du mobile de blocage 5, par exemple d'un angle entre 10° et 60°.It can also be provided that the finger 15 is rotatably mounted on the axis of rotation and further provided with a lug 15 "disposed in a banana-shaped opening 25 made in the first wheel 5 'of the locking wheel 5 When the intermediate wheel 2i of the differential is rotated, the lug 15 "of the finger 15 comes into abutment with one end of the banana-shaped opening 25 of the first wheel 5 ', which makes it possible to drive the finger 15 of the maximum power reserve position as shown in FIGS. figures 1a , 2a and 3a at the power-reserve position to zero as shown in figures 1b , 2b and 3b which corresponds to a locking position of the watch movement. The banana-shaped opening 25 describes a circular arc around the axis of rotation of the locking device 5, for example at an angle between 10 ° and 60 °.

Dans une forme d'exécution non représentée, l'élément de blocage peut être réalisé sur la première roue 5' en saillie sous la forme d'un cran, qui est destiné à venir en contact de la roue de décharge 2d du différentiel en position de blocage lorsque la réserve de marche est à zéro.In an embodiment not shown, the locking element may be formed on the first wheel 5 'projecting in the form of a notch, which is intended to come into contact with the discharge wheel 2d of the differential in the locked position when the power reserve is at zero.

Selon la forme d'exécution présentée aux figures 1a, 1b, 2a et 2b, la roue d'entraînement 6 est entraînée en rotation par la seconde roue 5" du mobile de blocage 5. La périphérie de cette roue d'entraînement 6 peut comprendre une denture pour engrener avec une denture extérieure réalisée en périphérie de la seconde roue 5". Un pignon central 6' de la roue d'entraînement 6 de diamètre inférieur vient en contact d'une roue d'affichage 7 de l'indicateur de réserve de marche. Le pignon central 6' comprend une denture pour engrener avec une denture de la roue d'affichage 7 de l'indicateur de réserve de marche. Une aiguille peut être prévue fixée sur l'axe de rotation de la roue d'affichage 7 montée sur la platine de montre 100. L'aiguille d'indication de la réserve de marche peut être observée sur un cadran de montre pour l'indication de la réserve de marche.According to the form of execution presented to figures 1a , 1b , 2a and 2b , the drive wheel 6 is rotated by the second wheel 5 "of the locking wheel 5. The periphery of this drive wheel 6 may comprise a toothing for meshing with an external toothing provided on the periphery of the second wheel 5 ". A central gear 6 'of the drive wheel 6 of smaller diameter comes into contact with a display wheel 7 of the power reserve indicator. The central gear 6 'comprises a toothing for meshing with a toothing of the display wheel 7 of the power reserve indicator. A needle can be provided fixed on the axis of rotation of the display wheel 7 mounted on the watch plate 100. The power reserve indication needle can be observed on a watch dial for the indication. of the power reserve.

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. L'élément de blocage du mobile de blocage peut aussi être entraîné d'une manière rectiligne par la première roue du mobile de blocage pour venir bloquer la roue de décharge du différentiel lorsque la réserve de marche est à zéro. 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. The blocking member of the locking member can also be driven in a rectilinear manner by the first wheel of the locking wheel to block the differential discharge wheel when the power reserve is zero. The watch movement may be in the form of a module with all the elements arranged in said module.

Claims (11)

  1. Mechanical timepiece movement (1) with running reserve indication, comprising at least one barrel system with a winding output connected to a winding wheel (2c) of a differential gear (2), and with an unwinding output connected to an unwinding wheel (2d) of the differential gear (2),
    the movement including a locking wheel set (5) driven in rotation by an intermediate wheel (2i) of the differential gear (2), the locking wheel set (5) being connected to a running reserve indicator (7) to display the running reserve,
    the locking wheel set (5) including a locking element (15) for coming into contact with the unwinding wheel (2d) of the differential gear (2), when the running reserve indicator indicates zero in order to lock the timepiece movement, and
    characterized in that the locking wheel set (5) includes a first wheel (5') fixed on the axis of rotation of the locking wheel set (5) and in direct contact with the intermediate wheel (2i) of the differential gear (2) to be driven in rotation.
  2. Mechanical timepiece movement (1) according to claim 1, characterized in that the locking wheel set (5) drives the running reserve indicator (7) via a drive wheel (6).
  3. Mechanical timepiece movement (1) according to claim 2, characterized in that the drive wheel (6) drives in rotation a display wheel (7) of the running reserve indicator.
  4. Mechanical timepiece movement (1) according to claim 1, characterized in that the locking wheel set (5) includes a second wheel (5") mounted and fixed on the axis of rotation coaxially and parallel to the first wheel (5'), and in that the second wheel (5") drives the running reserve indicator (7) via a drive wheel (6).
  5. Mechanical timepiece movement (1) according to claim 1, characterized in that the locking element of the locking wheel set (5) is in the form of a finger (15) with a portion (15') in contact with the unwinding wheel (2d) in the locking position.
  6. Mechanical timepiece movement (1) according to claim 5, characterized in that the contact portion is a tooth (15') that is inserted between two teeth of a toothing of the unwinding wheel (2d) of the differential gear (2) in the position locking the movement.
  7. Mechanical timepiece movement (1) according to claim 5, characterized in that the finger (15) is mounted on the axis of rotation of the locking wheel set (5).
  8. Mechanical timepiece movement (1) according to claim 7, characterized in that the finger (15) includes a lug (15") disposed inside an aperture (25) in an arc of a circle made inside a first wheel (5') fixed on an axis of rotation, the first wheel (5') being in direct contact with the intermediate wheel (2i) of the differential gear (2) to be driven in rotation.
  9. Mechanical timepiece movement (1) according to claim 8, characterized in that the banana-shaped aperture (25) describes an arc of a circle about the axis of rotation of the locking wheel set (5), and in that the finger (15) rotates freely on the axis of rotation and is driven in rotation on the first wheel (5') via the lug thereof (15") in contact with one end of the banana-shaped aperture (25) of the first wheel (5').
  10. Mechanical timepiece movement (1) according to claim 8, characterized in that the finger (15) is disposed between the first wheel (5') of the locking wheel set (5) and a second wheel (5") of the locking wheel set (5), which drives a drive wheel (6) in contact with the running reserve indicator (7).
  11. Mechanical timepiece movement (1) according to claim 1, characterized in that the locking element of the locking wheel set (5) is made on the first wheel (5') projecting in the form of a catch intended to come into contact with the unwinding wheel (2d) of the differential gear (2) in the locking position, when the running reserve is at zero.
EP16192251.3A 2016-10-04 2016-10-04 Mechanical clock movement with power-reserve detection Active EP3306416B1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP16192251.3A EP3306416B1 (en) 2016-10-04 2016-10-04 Mechanical clock movement with power-reserve detection
US15/681,458 US10365612B2 (en) 2016-10-04 2017-08-21 Mechanical timepiece movement with running reserve detection
JP2017160964A JP6405429B2 (en) 2016-10-04 2017-08-24 Mechanical timer movement with running reserve detection
CN201710890061.3A CN107894699B (en) 2016-10-04 2017-09-27 Mechanical timepiece movement with movement reserve detection device
HK18111497.5A HK1252258A1 (en) 2016-10-04 2018-09-06 Mechanical timepiece movement with running reserve detection

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP16192251.3A EP3306416B1 (en) 2016-10-04 2016-10-04 Mechanical clock movement with power-reserve detection

Publications (2)

Publication Number Publication Date
EP3306416A1 EP3306416A1 (en) 2018-04-11
EP3306416B1 true EP3306416B1 (en) 2019-08-21

Family

ID=57047131

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16192251.3A Active EP3306416B1 (en) 2016-10-04 2016-10-04 Mechanical clock movement with power-reserve detection

Country Status (5)

Country Link
US (1) US10365612B2 (en)
EP (1) EP3306416B1 (en)
JP (1) JP6405429B2 (en)
CN (1) CN107894699B (en)
HK (1) HK1252258A1 (en)

Families Citing this family (3)

* 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
EP3992727A1 (en) * 2020-10-30 2022-05-04 ETA SA Manufacture Horlogère Suisse Mechanical clock movement with running reserve detection

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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.
CN101156113B (en) * 2005-03-23 2011-11-16 Bnb概念股份有限公司 Time-meter movement
DE602005011433D1 (en) * 2005-09-01 2009-01-15 Montres Journe S A Clock with a timekeeping device by bell
EP1925995B1 (en) * 2006-11-21 2014-06-18 Christophe Claret Engineering S.A. Chiming mechanism
ATE443282T1 (en) * 2007-03-13 2009-10-15 Montres Breguet Sa WATCH WITH POWER RESERVE DISPLAY
CH704672A2 (en) 2011-03-22 2012-09-28 Montres Breguet Sa Selective stop mechanism for striking work of watch, has isolation mobile for controlling position of blocking lever and releasing/prohibiting movement of striking work control rod and/or authorizing/prohibiting impact of hammer on gong
EP2570866A1 (en) * 2011-09-15 2013-03-20 The Swatch Group Research and Development Ltd. Synchronised oscillators for an intermittent escapement
EP2859411B1 (en) * 2012-06-07 2016-10-12 Detra SA Escapement device for timepiece
EP2977828B1 (en) * 2014-07-21 2017-08-30 ETA SA Manufacture Horlogère Suisse Timepiece power reserve indicator
CH710320B1 (en) * 2014-10-31 2018-06-29 Red & White Intellectual Property Man Sa Timepiece comprising a source of mechanical energy and a control member.

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Also Published As

Publication number Publication date
HK1252258A1 (en) 2019-05-24
US20180095424A1 (en) 2018-04-05
JP2018059906A (en) 2018-04-12
CN107894699B (en) 2020-04-10
EP3306416A1 (en) 2018-04-11
US10365612B2 (en) 2019-07-30
JP6405429B2 (en) 2018-10-17
CN107894699A (en) 2018-04-10

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