EP4080292B1 - Timepiece mechanism for displaying at least a single indication of the time and timepiece comprising such a mechanism - Google Patents
Timepiece mechanism for displaying at least a single indication of the time and timepiece comprising such a mechanism Download PDFInfo
- Publication number
- EP4080292B1 EP4080292B1 EP21170065.3A EP21170065A EP4080292B1 EP 4080292 B1 EP4080292 B1 EP 4080292B1 EP 21170065 A EP21170065 A EP 21170065A EP 4080292 B1 EP4080292 B1 EP 4080292B1
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- European Patent Office
- Prior art keywords
- barrel
- wheel
- hour
- shaft
- drum
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- 230000007246 mechanism Effects 0.000 title claims description 28
- 238000004804 winding Methods 0.000 claims description 17
- 230000010355 oscillation Effects 0.000 claims description 10
- 230000001105 regulatory effect Effects 0.000 claims description 7
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 230000008901 benefit Effects 0.000 description 2
- 210000000056 organ Anatomy 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 241001417494 Sciaenidae Species 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Classifications
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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
- G04B19/00—Indicating the time by visual means
- G04B19/02—Back-gearing arrangements between gear train and hands
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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
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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
- G04B1/14—Mainsprings; Bridles therefor
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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
- G04B15/00—Escapements
- G04B15/14—Component parts or constructional details, e.g. construction of the lever or the escape wheel
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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
- G04B33/00—Calibers
- G04B33/10—Calibers with seconds hand arranged in the centre of the dial
Definitions
- the present invention relates to a watch mechanism for displaying at least the single time indication.
- the invention also relates to a timepiece comprising such a mechanism.
- finishing gear the set of wheels and pinions which, from the barrel, transmit the driving force to the escapement whose purpose is to maintain the oscillations of a regulating organ, typically a balance wheel, which , through its oscillations, regulates the running of the clockwork movement.
- a regulating organ typically a balance wheel
- the center mobile with which the roadway that is to say a pinion which makes one revolution in 1 hour and which controls the timer via which the rotation of the minute gear is transmitted to the hour hand, is friction coupled.
- the present invention aims to remedy the problems mentioned above as well as others by proposing a watch mechanism making it possible to provide at least the indication of the single time with increased precision.
- the present invention relates to a watch mechanism comprising a barrel drum mounted freely to pivot around a barrel shaft, a barrel spring being housed inside the barrel drum, this barrel spring comprising a first turn on the outside by which it is fixed to the barrel drum, and a last turn on the inside by which the barrel spring is fixed to the barrel shaft, the winding of the barrel spring being done by a rod of winder which meshes with the barrel drum via a winding train, a barrel ratchet being fixedly mounted on the barrel shaft, the watch mechanism also comprising a finishing train which comprises a first finishing wheel with which the barrel ratchet meshes and which, from the barrel drum, transmits a driving force to an escapement mobile whose purpose is to maintain the oscillations of a regulating organ which, through its oscillations, regulates the running of the clock movement, the mechanism watchmaker further comprising an hour wheel mounted by friction on the barrel shaft and on which an hour hand is fixed, the entire kinematic chain which extends from the barrel ratchet to
- the present invention provides a watch mechanism comprising a barrel drum on the barrel shaft of which an hour wheel is mounted.
- the present invention is distinguishes from the usual embodiments in which the roadway is for example fixed on an axis of a center wheel of the finishing gear and is connected to the hour wheel via one or more mobiles.
- the present invention teaches mounting the hour wheel directly on the barrel shaft, the connection between the hour wheel and the escapement is as direct as possible. This makes it possible to avoid as much as possible the problems of play and eccentricity of the toothed mobiles that are usually encountered in the transmission of movement between the roadway and the hour wheel, and therefore to guarantee a precise display of the time. .
- the entire kinematic chain which extends from the barrel ratchet to the escapement is calculated in such a way that the barrel ratchet, and therefore the hour wheel, rotates one complete revolution in 12 or 24 hours; on the other hand, so that it is possible to mount the hour wheel on the barrel shaft, the winding of the barrel spring is done by a winding rod which does not mesh with the barrel ratchet which is fixedly mounted on the barrel shaft, but with the barrel drum, and the barrel ratchet meshes with the first wheel of the finishing gear.
- Another advantage of the invention can be seen in the fact that by eliminating one or more reduction mobiles between the roadway and the hour wheel, we gain in space.
- the barrel drum can be arranged in the center of the movement, so that it can be larger than in the case where it must be arranged next to the switch and we must therefore make do with a barrel drum of a smaller diameter. Consequently, thanks to the invention, a watch mechanism with a greater power reserve is provided.
- a minute wheel is fixed on an axis of a wheel of the finishing train which is calculated so that this wheel makes a complete revolution in 60 minutes.
- the invention also relates to a timepiece, in particular a wristwatch, comprising such a watch mechanism.
- the present invention proceeds from the general inventive idea which consists of displaying the unique time by means of an hour wheel fixed on a shaft of a barrel drum.
- the winding of the barrel spring is done by means of a winding rod engaged, not with the barrel ratchet as is usually the case, but with the barrel drum. -same, while the barrel ratchet meshes with the first wheel of the finishing gear.
- a minute wheel is mounted on an axis of a wheel of the finishing gear arranged so that this wheel rotates at the rate of one complete revolution in 60 minutes.
- THE figures 1 And 2 are respectively top and perspective views of the part of a watch movement in which the watch mechanism according to the invention is integrated.
- this watch movement comprises at its center a barrel drum 2 mounted freely to pivot around a barrel shaft 4.
- a barrel spring 6, housed inside the barrel drum 2 conventionally comprises a first turn on the outside 6a by which it is fixed to the barrel drum 2, and a last turn on the inside 6b by which the barrel spring 6 is fixed to the barrel shaft 4.
- the winding of the barrel spring 6 is done by a winding gear 8 which is actuated by a winding rod 9 (see Figure 4 ) and which meshes, not, as is usually the case, with a barrel ratchet 10 fixedly mounted on the barrel shaft 4, but with the barrel drum 2 itself.
- the watch mechanism also comprises a finishing train 12 which comprises a first finishing wheel 14 with which the barrel ratchet 10 meshes.
- This first finishing wheel 14 meshes with a large average pinion 16 which, with a large average wheel 18, forms a large average wheel 20.
- the large average wheel 18 meshes with an average pinion 22 which , with an average wheel 24, forms a mobile of average 26.
- the average wheel 24 meshes with a second pinion 28 which, with a second wheel 30, forms a second mobile 32.
- the second wheel 30 meshes with an escape pinion 34 which, with an escape wheel 36, forms an escape wheel 38.
- this regulating member 40 is composed of an assembly formed by a balance wheel 42 and a spiral spring 44 and cooperates with the escape wheel 36 via an anchor 46.
- an hour wheel 48 is elastically coupled with the barrel shaft 4 in a manner which will be described in more detail below.
- the assembly formed by the barrel shaft 4 and the hour wheel 48 is pivoted between a first bridge 50a and a second bridge 50b by means of stones 52a, 52b which act as bearings.
- the number of teeth and the diameters of the cogs which make up the entire kinematic chain which extends from the barrel ratchet 10 to the escapement mobile 38 are calculated so that the hour wheel 48 on which is fixed an hour hand 54 for displaying the single time rotates at the rate of one complete revolution in 12 or 24 hours.
- the watch mechanism according to the invention described above operates in the following way.
- the barrel drum 2 turns and drives the first turn outside 6a of the barrel spring 6 by which the latter is fixed to the barrel drum 2.
- the last turn inside 6b by which the spring barrel 6 is fixed to the barrel shaft 4 remains fixed, so that the barrel spring 6 is tensioned.
- the barrel spring 6 begins to relax.
- the barrel spring 6 drives the barrel shaft 4, and therefore the barrel ratchet 10, in pivoting by its last turn inside 6b.
- the driving force produced by the barrel spring 6 which relaxes will thus be communicated via the barrel ratchet 10 and the entire finishing gear 12 to the escapement mobile 38 whose purpose is to maintain the oscillations of the balance 42 , which, through its oscillations, regulates the running of the clockwork movement 1.
- the number of teeth and the diameters of the cogs which make up the entire kinematic chain which extends from the barrel ratchet 10 to to the escapement mobile 38 are calculated so that the hour wheel 48 on which is fixed an hour hand 54 for displaying the single time rotates at the rate of one complete revolution in 12 or 24 hours.
- the hour wheel 48 is frictionally coupled with the barrel shaft 4, this in order to allow the adjustment of the single time display.
- the hour wheel 48 is coupled with the barrel shaft 4 by means of a friction wheel 56 arranged between the barrel drum 2 and this hour wheel 48.
- the friction wheel 56 is provided with two flexible arms 58 which surround the barrel shaft 4, so that this friction wheel 56 is elastically coupled with the barrel shaft 4 and is driven in rotation by the latter.
- the wheel of hours 48 is then placed on the friction wheel 56 so that two lugs 60 which stand on the surface of the friction wheel 56 engage in two corresponding openings 62 provided in the hour wheel 48, which guarantees coupling in rotation of the hour wheel 48 with the friction wheel 56.
- a minute wheel is fixed on an axis of a wheel of the finishing train 12 which is calculated so that this wheel makes a complete revolution in 60 minutes.
- the invention also relates to a timepiece such as a wristwatch comprising such a watch mechanism.
- the watch mechanism according to the invention can advantageously be arranged so that the barrel drum 2 is located in the center of the watch case, so that the hour wheel 48 on which the hour hand 54 is fixed for the The single time display is located in the center of the dial of this watch.
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Metallurgy (AREA)
- Gears, Cams (AREA)
- Measurement Of Unknown Time Intervals (AREA)
- Electromechanical Clocks (AREA)
Description
La présente invention concerne un mécanisme horloger d'affichage d'au moins l'indication de l'heure unique. L'invention concerne également une pièce d'horlogerie comprenant un tel mécanisme.The present invention relates to a watch mechanism for displaying at least the single time indication. The invention also relates to a timepiece comprising such a mechanism.
En horlogerie mécanique, on appelle rouage de finissage l'ensemble des roues et des pignons qui, du barillet, transmet la force motrice à l'échappement dont le but est d'entretenir les oscillations d'un organe régulateur, typiquement un balancier, qui, par ses oscillations, régule la marche du mouvement d'horlogerie. Parmi les différents pignons et roues qui composent le rouage de finissage, on trouve le mobile de centre avec lequel la chaussée, c'est-à-dire un pignon qui fait un tour en 1 heure et qui commande la minuterie via laquelle la rotation du pignon des minutes est transmise à l'aiguille des heures, est couplée à friction.In mechanical watchmaking, we call finishing gear the set of wheels and pinions which, from the barrel, transmit the driving force to the escapement whose purpose is to maintain the oscillations of a regulating organ, typically a balance wheel, which , through its oscillations, regulates the running of the clockwork movement. Among the different pinions and wheels which make up the finishing gear, we find the center mobile with which the roadway, that is to say a pinion which makes one revolution in 1 hour and which controls the timer via which the rotation of the minute gear is transmitted to the hour hand, is friction coupled.
L'inconvénient du mécanisme brièvement décrit ci-dessus réside dans le fait que l'entraînement de la chaussée fait intervenir un nombre important de pignons et de roues avec les problèmes de jeux et d'excentricité des rotations de ces mobiles dentés que cela implique, problèmes qui, bien sûr, ont un impact négatif sur la précision de l'affichage de l'heure.The disadvantage of the mechanism briefly described above lies in the fact that driving the roadway involves a large number of pinions and wheels with the problems of clearance and eccentricity of the rotations of these toothed mobiles that this implies, issues which, of course, negatively impact the accuracy of the time display.
Ces problèmes de précision de l'affichage de l'heure sont tout particulièrement gênants dans le cas où l'on souhaite fournir une indication de l'heure au moyen d'une unique aiguille des heures. En effet, dans un tel cas, la moindre imprécision dans l'entraînement de cette aiguille des heures se traduit par une erreur d'affichage de l'heure unique qui peut atteindre plusieurs minutes. Le document
La présente invention a pour but de remédier aux problèmes mentionnés ci-dessus ainsi qu'à d'autres encore en proposant un mécanisme horloger permettant de fournir au moins l'indication de l'heure unique avec une précision accrue.The present invention aims to remedy the problems mentioned above as well as others by proposing a watch mechanism making it possible to provide at least the indication of the single time with increased precision.
A cet effet, la présente invention concerne un mécanisme horloger comprenant un tambour de barillet monté libre à pivotement autour d'un arbre de barillet, un ressort de barillet étant logé à l'intérieur du tambour de barillet, ce ressort de barillet comprenant une première spire à l'extérieur par laquelle il est fixé au tambour de barillet, et une dernière spire à l'intérieur par laquelle le ressort de barillet est fixé à l'arbre de barillet, le remontage du ressort de barillet se faisant par une tige de remontoir qui engrène avec le tambour de barillet via un rouage de remontage, un rochet de barillet étant monté fixe sur l'arbre de barillet, le mécanisme horloger comprenant également un rouage de finissage qui comporte une première roue de finissage avec laquelle le rochet de barillet engrène et qui, du tambour de barillet, transmet une force motrice à un mobile d'échappement dont le but est d'entretenir les oscillations d'un organe régulateur qui, par ses oscillations, régule la marche du mouvement d'horlogerie, le mécanisme horloger comprenant encore une roue des heures montée à friction sur l'arbre de barillet et sur laquelle est fixée une aiguille des heures, l'ensemble de la chaîne cinématique qui s'étend depuis le rochet de barillet jusqu'à l'échappement étant calculé de façon que le rochet de barillet, et donc la roue des heures, tournent à raison d'un tour complet en 12 ou 24 heures.For this purpose, the present invention relates to a watch mechanism comprising a barrel drum mounted freely to pivot around a barrel shaft, a barrel spring being housed inside the barrel drum, this barrel spring comprising a first turn on the outside by which it is fixed to the barrel drum, and a last turn on the inside by which the barrel spring is fixed to the barrel shaft, the winding of the barrel spring being done by a rod of winder which meshes with the barrel drum via a winding train, a barrel ratchet being fixedly mounted on the barrel shaft, the watch mechanism also comprising a finishing train which comprises a first finishing wheel with which the barrel ratchet meshes and which, from the barrel drum, transmits a driving force to an escapement mobile whose purpose is to maintain the oscillations of a regulating organ which, through its oscillations, regulates the running of the clock movement, the mechanism watchmaker further comprising an hour wheel mounted by friction on the barrel shaft and on which an hour hand is fixed, the entire kinematic chain which extends from the barrel ratchet to the escapement being calculated so that the barrel ratchet, and therefore the hour wheel, rotates one complete revolution in 12 or 24 hours.
Grâce à ces caractéristiques, la présente invention procure un mécanisme horloger comprenant un tambour de barillet sur l'arbre de barillet duquel est montée une roue des heures. En cela, la présente invention se distingue des modes de réalisation habituels dans lesquels la chaussée est par exemple fixée sur un axe d'une roue de centre du rouage de finissage et est reliée à la roue des heures via un ou plusieurs mobiles. Comme la présente invention enseigne de monter la roue des heures directement sur l'arbre de barillet, la liaison entre la roue des heures et l'échappement est le plus direct possible. Cela permet d'éviter le plus possible les problèmes de jeux et d'excentricité des mobiles dentés que l'on rencontre habituellement dans la transmission du mouvement entre la chaussée et la roue des heures, et donc de garantir un affichage précis de l'heure. Pour atteindre ce résultat, deux mesures doivent être prises : d'une part, l'ensemble de la chaîne cinématique qui s'étend depuis le rochet de barillet jusqu'à l'échappement est calculé de façon que le rochet de barillet, et donc la roue des heures, tournent à raison d'un tour complet en 12 ou 24 heures ; d'autre part, pour qu'il soit possible de monter la roue des heures sur l'arbre de barillet, le remontage du ressort de barillet se fait par une tige de remontoir qui engrène non pas avec le rochet de barillet qui est monté fixe sur l'arbre de barillet, mais avec le tambour de barillet, et le rochet de barillet engrène avec la première roue du rouage de finissage. Un autre avantage de l'invention peut être vu dans le fait qu'en s'affranchissant d'un ou de plusieurs mobiles de réduction entre la chaussée et la roue des heures, on gagne en encombrement. De même, en prévoyant de fixer la roue des heures sur l'arbre de barillet, le tambour de barillet peut être agencé au centre du mouvement, de sorte qu'il peut être plus grand que dans le cas où l'on doit le disposer à côté de l'aiguillage et que l'on doit donc se contenter d'un tambour de barillet de plus faible diamètre. Par conséquent, grâce à l'invention, on procure un mécanisme horloger avec une réserve de marche plus importante.Thanks to these characteristics, the present invention provides a watch mechanism comprising a barrel drum on the barrel shaft of which an hour wheel is mounted. In this, the present invention is distinguishes from the usual embodiments in which the roadway is for example fixed on an axis of a center wheel of the finishing gear and is connected to the hour wheel via one or more mobiles. As the present invention teaches mounting the hour wheel directly on the barrel shaft, the connection between the hour wheel and the escapement is as direct as possible. This makes it possible to avoid as much as possible the problems of play and eccentricity of the toothed mobiles that are usually encountered in the transmission of movement between the roadway and the hour wheel, and therefore to guarantee a precise display of the time. . To achieve this result, two measures must be taken: on the one hand, the entire kinematic chain which extends from the barrel ratchet to the escapement is calculated in such a way that the barrel ratchet, and therefore the hour wheel, rotates one complete revolution in 12 or 24 hours; on the other hand, so that it is possible to mount the hour wheel on the barrel shaft, the winding of the barrel spring is done by a winding rod which does not mesh with the barrel ratchet which is fixedly mounted on the barrel shaft, but with the barrel drum, and the barrel ratchet meshes with the first wheel of the finishing gear. Another advantage of the invention can be seen in the fact that by eliminating one or more reduction mobiles between the roadway and the hour wheel, we gain in space. Likewise, by planning to fix the hour wheel on the barrel shaft, the barrel drum can be arranged in the center of the movement, so that it can be larger than in the case where it must be arranged next to the switch and we must therefore make do with a barrel drum of a smaller diameter. Consequently, thanks to the invention, a watch mechanism with a greater power reserve is provided.
Selon une forme spéciale d'exécution de l'invention, une roue des minutes est fixée sur un axe d'une roue du rouage de finissage qui est calculé de façon que cette roue effectue un tour complet en 60 minutes.According to a special embodiment of the invention, a minute wheel is fixed on an axis of a wheel of the finishing train which is calculated so that this wheel makes a complete revolution in 60 minutes.
L'invention concerne également une pièce d'horlogerie, en particulier une montre-bracelet, comprenant un tel mécanisme horloger.The invention also relates to a timepiece, in particular a wristwatch, comprising such a watch mechanism.
D'autres caractéristiques et avantages de la présente invention ressortiront plus clairement de la description détaillée qui suit d'un mode de réalisation du mécanisme horloger selon l'invention, cet exemple étant donné à titre purement illustratif et non limitatif seulement en liaison avec le dessin annexé sur lequel :
- la
figure 1 est une vue dessus de la partie d'un mouvement d'horlogerie comprise entre un tambour de barillet et un organe régulateur qui sont reliés l'un à l'autre par l'intermédiaire d'un rouage de finissage et d'un échappement ; - la
figure 2 est une vue en perspective de la partie du mouvement d'horlogerie représentée à lafigure 1 ; - la
figure 3 est une vue en coupe et en élévation du mécanisme horloger selon l'invention ; - la
figure 4 est une vue en perspective du mécanisme horloger représenté à lafigure 3 , et - la
figure 5 illustre le couplage à friction entre la roue des heures et l'arbre de barillet.
- there
figure 1 is a top view of the part of a watch movement included between a barrel drum and a regulating member which are connected to each other via a finishing train and an escapement; - there
figure 2 is a perspective view of the part of the clock movement shown on thefigure 1 ; - there
Figure 3 is a sectional and elevational view of the watch mechanism according to the invention; - there
Figure 4 is a perspective view of the watch mechanism shown inFigure 3 , And - there
Figure 5 illustrates the friction coupling between the hour wheel and the barrel shaft.
La présente invention procède de l'idée générale inventive qui consiste à afficher l'heure unique au moyen d'une roue des heures fixée sur un arbre d'un tambour de barillet. En procédant de la sorte, on s'affranchit du ou des mobiles qui sont habituellement utilisés dans les mécanismes d'horlogerie pour assurer la démultiplication entre la chaussée et la roue des heures et on évite ainsi les problèmes de jeux et d'excentricité inhérents à ces mobiles qui sont source d'imprécision dans l'affichage de l'heure. Pour atteindre ce résultat, la présente invention enseigne que le remontage du ressort de barillet se fait au moyen d'une tige de remontoir en prise, non pas avec le rochet de barillet comme tel est habituellement le cas, mais avec le tambour de barillet lui-même, tandis que le rochet de barillet engrène quant à lui avec la première roue du rouage de finissage. Moyennant un calcul approprié du nombre de dents et du diamètre des différents rouages qui composent la chaîne cinématique qui s'étend depuis le rochet de barillet jusqu'à l'échappement via le rouage de finissage, il est possible de faire tourner le rochet de barillet et donc la roue des heures à raison d'un tour complet en 12 ou 24 heures. Selon une forme spéciale d'exécution de l'invention, une roue des minutes est montée sur un axe d'une roue du rouage de finissage agencé de façon que cette roue tourne à raison d'un tour complet en 60 minutes.The present invention proceeds from the general inventive idea which consists of displaying the unique time by means of an hour wheel fixed on a shaft of a barrel drum. By proceeding in this way, we free ourselves from the or mobiles which are usually used in watch mechanisms to ensure the reduction between the road and the hour wheel and thus avoid the problems of play and eccentricity inherent to these mobiles which are a source of inaccuracy in the time display. To achieve this result, the present invention teaches that the winding of the barrel spring is done by means of a winding rod engaged, not with the barrel ratchet as is usually the case, but with the barrel drum. -same, while the barrel ratchet meshes with the first wheel of the finishing gear. By properly calculating the number of teeth and the diameter of the different gears that make up the kinematic chain which extends from the barrel ratchet to the escapement via the finishing gear, it is possible to rotate the barrel ratchet and therefore the hour wheel at the rate of one complete revolution in 12 or 24 hours. According to a special embodiment of the invention, a minute wheel is mounted on an axis of a wheel of the finishing gear arranged so that this wheel rotates at the rate of one complete revolution in 60 minutes.
Les
Selon une autre caractéristique de l'invention, le mécanisme horloger comprend également un rouage de finissage 12 qui comporte une première roue de finissage 14 avec laquelle le rochet de barillet 10 engrène. Cette première roue de finissage 14 engrène avec un pignon de grande moyenne 16 qui, avec une roue de grande moyenne 18, forme un mobile de grande moyenne 20. A son tour, la roue de grande moyenne 18 engrène avec un pignon de moyenne 22 qui, avec une roue de moyenne 24, forme un mobile de moyenne 26. A son tour, la roue de moyenne 24 engrène avec un pignon de seconde 28 qui, avec une roue de seconde 30, forme un mobile de seconde 32. Finalement, la roue de seconde 30 engrène avec un pignon d'échappement 34 qui, avec une roue d'échappement 36, forme un mobile d'échappement 38. Grâce à la force motrice qu'il reçoit du tambour de barillet 2, le mobile d'échappement 38 est à même d'entretenir les oscillations d'un organe régulateur 40 qui, par ses oscillations, régule la marche du mouvement d'horlogerie 1. Selon un exemple de réalisation donné à titre purement illustratif seulement, cet organe régulateur 40 se compose d'un ensemble formé par un balancier 42 et un ressort spiral 44 et coopère avec la roue d'échappement 36 par l'intermédiaire d'une ancre 46.According to another characteristic of the invention, the watch mechanism also comprises a
Selon une autre caractéristique de l'invention, une roue des heures 48 est couplée élastiquement avec l'arbre de barillet 4 d'une façon qui sera décrite plus en détail ci-après. Comme on peut le voir à l'examen de la
Le mécanisme horloger selon l'invention décrit ci-dessus fonctionne de la façon suivante. Pour remonter le ressort de barillet 6, on actionne la tige de remontoir 9 qui, on le rappelle, engrène via un rouage de remontage 8 avec le tambour de barillet 2. Sous l'effet de l'actionnement de la tige de remontoir 9, le tambour de barillet 2 tourne et entraîne la première spire à l'extérieur 6a du ressort de barillet 6 par laquelle ce dernier est fixé au tambour de barillet 2. Dans le même temps, la dernière spire à l'intérieur 6b par laquelle le ressort de barillet 6 est fixé à l'arbre de barillet 4 reste fixe, de sorte que le ressort de barillet 6 se tend. Ensuite, en cours de fonctionnement, le ressort de barillet 6 commence à se détendre. Comme le tambour de barillet 2 est alors immobile, le ressort de barillet 6 entraîne l'arbre de barillet 4, et donc le rochet de barillet 10, en pivotement par sa dernière spire à l'intérieur 6b. La force motrice produite par le ressort de barillet 6 qui se détend va ainsi être communiquée via le rochet de barillet 10 et l'ensemble du rouage de finissage 12 au mobile d'échappement 38 dont le but est d'entretenir les oscillations du balancier 42, qui, par ses oscillations, régule la marche du mouvement d'horlogerie 1. On rappelle que le nombre de dents et les diamètres des rouages qui composent l'ensemble de la chaîne cinématique qui s'étend depuis le rochet de barillet 10 jusqu'au mobile d'échappement 38 sont calculés de façon que la roue des heures 48 sur laquelle est fixée une aiguille des heures 54 pour l'affichage de l'heure unique tourne à raison d'un tour complet en 12 ou 24 heures.The watch mechanism according to the invention described above operates in the following way. To wind the
Comme indiqué ci-dessus, la roue des heures 48 est couplée à friction avec l'arbre de barillet 4, ceci dans le but de permettre le réglage de l'affichage de l'heure unique. A cet effet, la roue des heures 48 est couplée avec l'arbre de barillet 4 au moyen d'une roue à friction 56 disposée entre le tambour de barillet 2 et cette roue des heures 48. Comme il ressort de la
Il va de soi que la présente invention n'est pas limitée au mode de réalisation qui vient d'être décrit et que diverses modifications et variantes simples peuvent être envisagées par l'homme du métier sans sortir du cadre de l'invention tel que défini par les revendications annexées. En particulier, selon une forme spéciale d'exécution de l'invention, une roue des minutes est fixée sur un axe d'une roue du rouage de finissage 12 qui est calculé de façon que cette roue effectue un tour complet en 60 minutes. L'invention concerne également une pièce d'horlogerie telle qu'une montre-bracelet comprenant un tel mécanisme horloger. Le mécanisme horloger selon l'invention peut avantageusement être agencé de façon que le tambour de barillet 2 se trouve au centre de la boîte de la montre, de sorte que la roue des heures 48 sur laquelle est fixée l'aiguille des heures 54 pour l'affichage de l'heure unique se trouve au centre du cadran de cette montre.It goes without saying that the present invention is not limited to the embodiment which has just been described and that various simple modifications and variants can be envisaged by those skilled in the art without departing from the scope of the invention as defined. by the appended claims. In particular, according to a special embodiment of the invention, a minute wheel is fixed on an axis of a wheel of the finishing
- 1. Mouvement d'horlogerie1. Clockwork
- 2. Tambour de barillet2. Barrel drum
- 4. Arbre de barillet4. Barrel shaft
- 6. Ressort de barillet6. Barrel spring
- 6a. Première spire à l'extérieur6a. First turn outside
- 6b. Dernière spire à l'intérieur6b. Last turn inside
- 8. Rouage de remontage8. Winding gear
- 9. Tige de remontoir9. Winding stem
- 10. Rochet de barillet10. Barrel ratchet
- 12. Rouage de finissage12. Finishing gear
- 14. Première roue de finissage14. First finishing wheel
- 16. Pignon de grande moyenne16. Large medium pinion
- 18. Roue de grande moyenne18. Large medium wheel
- 20. Mobile de grande moyenne20. Large medium mobile
- 22. Pignon de moyenne22. Average pinion
- 24. Roue de moyenne24. Average Wheel
- 26. Mobile de moyenne26. Moving average
- 28. Pignon de seconde28. Second gear
- 30. Roue de seconde30. Second wheel
- 32. Mobile de seconde32. Second mobile
- 34. Pignon d'échappement34. Exhaust pinion
- 36. Roue d'échappement36. Escape wheel
- 38. Mobile d'échappement38. Exhaust mobile
- 40. Organe régulateur40. Regulatory body
- 42. Balancier42. Pendulum
- 44. Ressort spiral44. Spiral spring
- 46. Ancre46. Anchor
- 48. Roue des heures48. Hour wheel
- 50a. Premier pont50a. First bridge
- 50b. Second pont50b. Second bridge
- 52a, 52b. Pierres52a, 52b. Stones
- 54. Aiguille des heures54. Hour hand
- 56. Roue à friction56. Friction wheel
- 58. Bras flexibles58. Flexible arms
- 60. Ergots60. Dewclaws
- 62. Ouvertures62. Openings
Claims (4)
- A horological mechanism comprising a barrel drum (2) mounted pivotally free around a barrel shaft (4), a barrel spring (6) being housed inside the barrel drum (2), this barrel spring (6) comprising a first external coil (6a) by which it is attached to the barrel drum (2), and a last internal coil (6b) by which the barrel spring (6) is attached to the barrel shaft (4), the winding of the barrel spring (6) being done by a winding rod (9) which meshes with the barrel drum (2) via a winding geartrain (8), a barrel ratchet (10) being fixedly mounted on the barrel shaft (4), the horological mechanism also comprising a finishing geartrain (12) which includes a first finishing wheel (14) with which the barrel ratchet (10) meshes, and which transmits a driving force from the barrel drum (12) to an escapement mobile (38) the purpose of which is to maintain the oscillations of a regulating member (40) which, by its oscillations, regulates the rate of the horological mechanism, the horological mechanism being characterised in that it comprises an hour wheel (48) frictionally mounted on the barrel shaft (4) and to which an hour hand is attached (54) for displaying the single time, this hour wheel (54) being frictionally coupled with the barrel shaft (4), the entire kinematic chain extending from the barrel ratchet (10) to the escapement mobile (38) being calculated so that the barrel ratchet (10), and therefore the hour wheel (48), rotate at the rate of one complete revolution in 12 or 24 hours.
- The horological mechanism according to claim 1, characterised in that a minute wheel is attached to an axis of a wheel of the finishing geartrain (12) which is calculated so that this wheel makes one complete revolution in 60 minutes.
- The horological mechanism according to one of claims 1 and 2, characterised in that the hour wheel (48) is coupled with the barrel shaft (4) by means of a friction wheel (56) disposed between the barrel drum (2) and this hour wheel (48), the friction wheel (56) being provided with two flexible arms (58) which grip the barrel shaft (4), so that this friction wheel (56) is elastically coupled with the barrel shaft (4) and is rotated by the latter, the hour wheel (48) being placed on the friction wheel (56) so that two lugs (60) which stand on the surface of the friction wheel (56) engage in two corresponding openings (62) made in the hour wheel (48), which guarantees the rotational coupling of the hour wheel (48) with the friction wheel (56).
- A timepiece comprising a horological mechanism according to one of claims 1 to 3.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP21170065.3A EP4080292B1 (en) | 2021-04-23 | 2021-04-23 | Timepiece mechanism for displaying at least a single indication of the time and timepiece comprising such a mechanism |
US17/646,900 US12147194B2 (en) | 2021-04-23 | 2022-01-04 | Horological mechanism for displaying at least the single time indication and timepiece comprising such a mechanism |
JP2022000848A JP7233573B2 (en) | 2021-04-23 | 2022-01-06 | Mechanisms for timepieces for displaying at least one time indication and timepieces comprising such mechanisms |
CN202210133537.XA CN115327878B (en) | 2021-04-23 | 2022-02-09 | Timepiece mechanism for displaying at least a single time indication and timepiece comprising such a mechanism |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP21170065.3A EP4080292B1 (en) | 2021-04-23 | 2021-04-23 | Timepiece mechanism for displaying at least a single indication of the time and timepiece comprising such a mechanism |
Publications (2)
Publication Number | Publication Date |
---|---|
EP4080292A1 EP4080292A1 (en) | 2022-10-26 |
EP4080292B1 true EP4080292B1 (en) | 2023-11-08 |
Family
ID=75659859
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP21170065.3A Active EP4080292B1 (en) | 2021-04-23 | 2021-04-23 | Timepiece mechanism for displaying at least a single indication of the time and timepiece comprising such a mechanism |
Country Status (4)
Country | Link |
---|---|
US (1) | US12147194B2 (en) |
EP (1) | EP4080292B1 (en) |
JP (1) | JP7233573B2 (en) |
CN (1) | CN115327878B (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP7534941B2 (en) | 2020-12-02 | 2024-08-15 | 積水化学工業株式会社 | Partition wall |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH27549A (en) * | 1903-02-17 | 1904-01-31 | Irenee Aubry | Long-running watch and visible escapement, with central seconds |
CH1792770A4 (en) * | 1970-12-03 | 1972-06-30 | ||
CH687795C1 (en) * | 1994-05-07 | 2001-05-15 | Omega Sa | MECHANICAL WATCHMAKING PIECE WITH A TOURBILLON. |
EP1845425B1 (en) * | 2006-04-12 | 2011-07-13 | Montres Breguet S.A. | Chiming timepiece with a single barrel |
JP5410453B2 (en) | 2008-03-11 | 2014-02-05 | パルミジャーニ フルーリエ エス.アー. | Coaxial watch movement |
CN202837825U (en) * | 2012-09-12 | 2013-03-27 | 天津海鸥表业集团有限公司 | Tourbillon desk clock |
CH706990B1 (en) * | 2012-09-18 | 2016-10-14 | Breitling Ag | watch movement comprising first and second barrels. |
EP2746867B1 (en) * | 2012-12-18 | 2015-12-16 | ETA SA Manufacture Horlogère Suisse | Timepiece barrel |
EP2871537B1 (en) * | 2013-11-06 | 2017-01-04 | ETA SA Manufacture Horlogère Suisse | Watch with improved power reserve |
EP2887150A1 (en) * | 2013-12-20 | 2015-06-24 | ETA SA Manufacture Horlogère Suisse | Optimised timepiece barrel |
EP2977830B1 (en) * | 2014-07-23 | 2017-08-30 | Nivarox-FAR S.A. | Constant-force escapement mechanism |
EP3168693B1 (en) * | 2015-11-12 | 2018-11-07 | Cartier International AG | Clock movement |
CH712101A2 (en) * | 2016-02-08 | 2017-08-15 | Hepta Swiss Sa | Clockwork movement comprising a regulating device disposed between a power source and an exhaust. |
EP3557335A1 (en) * | 2018-04-17 | 2019-10-23 | Dominique Renaud SA | Free direct escapement mechanism for timepiece part |
EP3557334A1 (en) * | 2018-04-17 | 2019-10-23 | Dominique Renaud SA | Escapement mechanism with lock pallet and timepiece comprising such an escapement mechanism |
-
2021
- 2021-04-23 EP EP21170065.3A patent/EP4080292B1/en active Active
-
2022
- 2022-01-04 US US17/646,900 patent/US12147194B2/en active Active
- 2022-01-06 JP JP2022000848A patent/JP7233573B2/en active Active
- 2022-02-09 CN CN202210133537.XA patent/CN115327878B/en active Active
Also Published As
Publication number | Publication date |
---|---|
JP7233573B2 (en) | 2023-03-06 |
CN115327878B (en) | 2024-05-03 |
US12147194B2 (en) | 2024-11-19 |
CN115327878A (en) | 2022-11-11 |
EP4080292A1 (en) | 2022-10-26 |
US20220342369A1 (en) | 2022-10-27 |
JP2022167770A (en) | 2022-11-04 |
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