EP3923084A1 - Anti-correction system of an indicator for a timepiece - Google Patents
Anti-correction system of an indicator for a timepiece Download PDFInfo
- Publication number
- EP3923084A1 EP3923084A1 EP20179603.4A EP20179603A EP3923084A1 EP 3923084 A1 EP3923084 A1 EP 3923084A1 EP 20179603 A EP20179603 A EP 20179603A EP 3923084 A1 EP3923084 A1 EP 3923084A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- correction
- indicator
- component
- protuberance
- correction system
- 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.)
- Pending
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- 229910000831 Steel Inorganic materials 0.000 claims description 2
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- 230000001419 dependent effect Effects 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 230000003442 weekly effect Effects 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
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- 238000002347 injection Methods 0.000 description 1
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- 239000002184 metal Substances 0.000 description 1
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- 239000007787 solid Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
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
- G04B19/24—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars
- G04B19/243—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars characterised by the shape of the date indicator
- G04B19/247—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars characterised by the shape of the date indicator disc-shaped
- G04B19/253—Driving or releasing mechanisms
- G04B19/25333—Driving or releasing mechanisms wherein the date indicators are driven or released mechanically by a clockwork movement
- G04B19/25353—Driving or releasing mechanisms wherein the date indicators are driven or released mechanically by a clockwork movement driven or released stepwise by the clockwork movement
- G04B19/2536—Driving or releasing mechanisms wherein the date indicators are driven or released mechanically by a clockwork movement driven or released stepwise by the clockwork movement automatically corrected at the end of months having less than 31 days
-
- 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
- G04B19/24—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars
- G04B19/243—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars characterised by the shape of the date indicator
- G04B19/247—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars characterised by the shape of the date indicator disc-shaped
- G04B19/253—Driving or releasing mechanisms
- G04B19/25306—Independent date indicating devices activated by hand or by clockwork, e.g. calendar watches
- G04B19/25313—Independent date indicating devices activated by hand or by clockwork, e.g. calendar watches driven or released by a steady movement
- G04B19/2532—Independent date indicating devices activated by hand or by clockwork, e.g. calendar watches driven or released by a steady movement automatically corrected at the end of mounths having less than 31 days
-
- 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
- G04B19/24—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars
- G04B19/243—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars characterised by the shape of the date indicator
- G04B19/247—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars characterised by the shape of the date indicator disc-shaped
- G04B19/253—Driving or releasing mechanisms
- G04B19/25306—Independent date indicating devices activated by hand or by clockwork, e.g. calendar watches
- G04B19/25313—Independent date indicating devices activated by hand or by clockwork, e.g. calendar watches driven or released by a steady movement
- G04B19/25326—Independent date indicating devices activated by hand or by clockwork, e.g. calendar watches driven or released by a steady movement manually corrected at the end of months having less than 31 days
-
- 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
- G04B19/24—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars
-
- 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
-
- 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
- G04B19/24—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars
- G04B19/243—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars characterised by the shape of the date indicator
- G04B19/247—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars characterised by the shape of the date indicator disc-shaped
- G04B19/253—Driving or releasing mechanisms
- G04B19/25306—Independent date indicating devices activated by hand or by clockwork, e.g. calendar watches
-
- 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
- G04B19/24—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars
- G04B19/243—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars characterised by the shape of the date indicator
- G04B19/247—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars characterised by the shape of the date indicator disc-shaped
- G04B19/253—Driving or releasing mechanisms
- G04B19/25333—Driving or releasing mechanisms wherein the date indicators are driven or released mechanically by a clockwork movement
- G04B19/2534—Driving or releasing mechanisms wherein the date indicators are driven or released mechanically by a clockwork movement driven or released continuously by the clockwork movement
- G04B19/25346—Driving or releasing mechanisms wherein the date indicators are driven or released mechanically by a clockwork movement driven or released continuously by the clockwork movement manually corrected at the end of months having less than 31 days
-
- 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
Definitions
- the invention relates to an anti-correction system for an indicator for a timepiece. Without this being limiting, a particular field of application of the present invention is that of horological complications of the annual calendar mechanism type.
- the indicator is for example a date indicator, a month indicator or even a day or year indicator or a weekly calendar.
- the invention also relates to a timepiece comprising such an anti-correction system.
- the timepiece is for example a mechanical watch.
- An annual calendar mechanism is a horological complication which takes into account the fact that the twelve months of the year do not all have the same number of days.
- the annual calendar mechanism is therefore capable of correctly displaying the date of the first day of the months following a thirty-day month.
- Such a mechanism does not take into account either the month of February (considered as a month with thirty or thirty-one days) or leap years.
- the difference in duration between the months is typically taken into account thanks to a cam having solid parts and notches.
- the correction of the month on the thirtieth day of each month must be mechanically blocked within the system. Indeed, otherwise, there is a risk of temporary desynchronization.
- a mechanical blocking is for example produced by means of a lug provided on an upper part of the date indicator.
- the position of the lug on the date indicator is chosen such that the lug blocks in rotation a drive gear on the thirtieth day of each month, the drive gear being integral with a correction gear configured to mesh with the month indicator under the action of a correction mechanism.
- the correction mechanism is in fact configured to mesh with the correction gear in a correction position, and is movably mounted between this correction position and a non-correction position.
- a problem posed by this type of mechanical blocking is that if the user decides to manually correct the month (for example by means of a manual correction system of the actuating rod type) when the lug blocks the rotation of the month. drive gear, there is a very significant risk that the user will force the system, thus leading to degradation or even breakage of certain components such as the correction gear for example.
- a known solution consists in providing, in the correction mechanism of the month indicator, a part held by friction and capable of rotating about an axis, of the friction board type.
- the object of the invention is therefore to provide an anti-correction system for an indicator for a timepiece, making it possible to simply prevent any deterioration of a component in the event of an attempt at manual correction during a day or two. '' an hour during which the correction is prohibited, without having to resort to a part held by friction.
- the invention relates to an anti-correction system for an indicator for a timepiece, and which comprises the characteristics mentioned in independent claim 1.
- the system comprises a component mounted mobile in rotation about an axis.
- the component has a first end configured to cooperate with at least one protuberance provided on the date indicator or the hour wheel, and a second end configured to cooperate with the correction mechanism so as to lock the mechanism in an anti-correction position.
- the component thus turns around its axis and locks the mechanism in the anti-correction position.
- the correction mechanism is then stopped before the end of its travel for the correction of the date or the month, and turns in a vacuum.
- the component On the other (non-prohibited) days of the month, or the other (non-prohibited) hours of the day, the component is free and allows the correction mechanism to switch also freely from its non-correction position to its correction position in which it meshes with the correction gear.
- Such a solution according to the invention is particularly simple and makes it possible to control the performance and the stability of the anti-correction system, compared to the solutions of the prior art using work of parts held by friction.
- the system according to the invention makes it possible to prevent any component deterioration in the event of an attempt at manual correction during a day or an hour during which (which) the correction is prohibited, while ensuring good behavior. date mechanism and avoiding any risk of temporary desynchronization.
- the component is mounted to rotate freely about the axis.
- This variant makes it possible to reduce the consumption of mechanical torque within the system. It also makes it possible to reduce the mechanical wear between the components of the system and therefore to increase the longevity of the latter.
- the system further comprises at least one stopper configured to limit the angular movement of the correction mechanism between its correction and non-correction positions.
- the correction mechanism is configured so that its second position of non-correction of the indicator corresponds to a correction position of the date indicator or of the hour wheel.
- the correction mechanism is configured so that its anti-correction position corresponds to its second position of non-correction of the indicator.
- the or each protuberance is provided on a lower part of the date indicator or of the hour wheel, and extends in a plane defined by the lower part of said date indicator or of said hour wheel.
- the system is a month indicator anti-correction system
- the date indicator is provided with at least one protuberance, the position of the or each protuberance on the indicator. date corresponding to a date predetermined for which the protuberance cooperates with the first end of the component so as to cause the locking of the mechanism in its anti-correction position.
- the system is a date indicator anticorrection system
- the hour wheel is provided with at least one protuberance, the position of the or each protuberance on the hour wheel. corresponding to a predetermined time during which the protuberance cooperates with the first end of the component so as to cause the mechanism to lock in its anti-correction position.
- the invention also relates to a watch movement comprising the anti-correction system described above, and which comprises the characteristics mentioned in dependent claim 14.
- the invention also relates to a timepiece comprising the horological movement described above and / or the anti-correction system described above, and which comprises the characteristics mentioned in dependent claim 15.
- a particular form of the timepiece is defined in dependent claim 16.
- the figures 1 to 4 represent a part of a timepiece 1, which comprises a timepiece movement 2.
- the timepiece 1 is typically a mechanical watch.
- the watch movement 2 comprises a system 4 for anti-correction of an indicator 6.
- the indicator 6 is for example a date indicator, a month indicator or even a day or year indicator or a weekly calendar, without this happening. is limiting in the context of the present invention.
- the system 4 is an anti-correction system for a month indicator 6.
- the watch movement 2 also includes a date indicator 5 and a mechanism annual calendar (the latter not being shown in the figures).
- the month indicator 6 is shown on the figure 1 .
- the month indicator 6 is mounted in rotation about an axis 6a.
- the month indicator 6 is driven by another system (not shown) belonging to the annual calendar mechanism, in order to modify the value of the month at the end of the thirtieth day.
- the system 4 is an anti-correction system for a date indicator.
- the system 4 comprises a mechanism 8 for correcting the month indicator 6, a correction gear 10, a drive gear 12, and a movable component 14 (not shown in FIG. figure 1 for the sake of clarity).
- the system 4 also comprises at least one stop (not visible in the figures).
- the system 4 also comprises a spring mounted so as to urge the movable component 14 towards an elastic return position.
- the correction mechanism 8 is connected to a manual correction actuation system (not shown in the figures), such as for example an actuating rod connected to a winding crown.
- the correction mechanism 8 is movably mounted between a first correction position illustrated on the figures 1 and 2 , wherein the correction mechanism 8 meshes with the correction gear 10; and a second non-correction position (not shown in the figures) in which the mechanism 8 does not mesh with the correction gear 10.
- the correction mechanism 8 is configured so that its second non-correction position of the month indicator 6 corresponds to a correction position of the date indicator 5.
- the correction mechanism 8 comprises at least one drive finger 18. In the particular embodiment illustrated in FIGS.
- the correction mechanism 8 comprises three drive fingers 18 regularly distributed over 360 degrees around an axis 18a which is mounted on the mechanism 8.
- the drive fingers 18 are integral and mounted to rotate around the axis 18a.
- the drive fingers 18 are configured to mesh with the correction gear 10 in the first correction position of the mechanism 8.
- the correction gear 10 is integral with the drive gear 12. As illustrated in figure 1 , the correction gear 10 is configured to mesh with the month indicator 6.
- the drive gear 12 is mounted on the correction gear 10, and is for example configured to cooperate with at least one lug 19 provided on an upper part 20 of the date indicator 5.
- the upper part 20 of the date indicator 5 is provided with a single lug 19.
- the lug 19 drives the month indicator 6, via the drive train 12, during a long month (at thirty- and-one days).
- the lug 19 is driven by the month indicator 6, via the drive gear 12, during a short month (less than thirty-one days).
- the lug 19 extends in the plane defined by the upper part 20 of the date indicator 5, and extends radially towards the inside of the date indicator 5.
- the upper part 20 of the date indicator 5 is not provided with any lug. This is for example the case when the watch movement 2 is provided with a simple non-annual date mechanism.
- Component 14 which is visible on the figures 2 to 4 , is mounted to be movable in rotation about an axis 22. In the preferred embodiment shown in the figures 1 to 4 , the component 14 is mounted to rotate freely around the axis 22. The component 14 is maintained in height on the axis 22, typically by means of a tenon or a pin.
- the component 14 has a first end 14a and a second end 14b.
- the component 14 has the form of a lever. In this case, the first end 14a corresponds to a corner of a first enlarged part 21 of the lever, and the second end 14b corresponds to a free end of a second arm-shaped part 23 of the lever.
- the first end 14a is configured to cooperate with at least one protuberance 24 provided on a lower part 25 of the date indicator 5.
- the lower part 25 of the date indicator 5 is provided with a single protuberance 24.
- the protuberance 24 extends in the plane defined by the lower part 25 of the date indicator 5, and extends radially towards the inside of the date indicator 5.
- the lower part 25 of the date indicator 5 is provided with at least two protuberances distributed at regular intervals or not on the periphery of the date indicator 5.
- the component 14 is for example made of a plastic material or of a metallic material, in particular of steel. Component 14 is advantageously manufactured via a stamp, or else via plastic or metal injection, or else in the form of bands or neckline.
- the second end 14b of the component 14 is configured to cooperate with the correction mechanism 8 so as to block the mechanism 8 in an anticorrection position when the first end 14a of the component 14 cooperates with the protuberance 24.
- component 14 then rotates around its axis 22 and locks mechanism 8 in the anti-correction position.
- the correction mechanism 8 is then stopped before the end of its travel for the correction of the month, and turns in a vacuum.
- the anti-correction position of mechanism 8, visible on the figures 3 and 4 is a prohibited correction position of the month indicator 6.
- the anti-correction position of mechanism 8 is an intermediate position between the first correction position and the second non-correction position of the indicator 6.
- the correction mechanism 8 is configured so that its anti-correction position corresponds to its second non-correction position of the indicator. month 6.
- the protuberance 24 is for example positioned so that the anti-correction position of the mechanism 8 is activated on the thirtieth day of each month.
- the movable component 14 is in an authorized correction position which is shown in the figure. figure 2 .
- the correction mechanism 8 is free to switch from its non-correction position to its correction position, and vice versa. This situation arises for example on a day distinct from the thirtieth day of the month.
- the month indicator 6, the correction mechanism 8, the correction gear 10, the mobile component 14 and the stopper are for example mounted on a plate 26 of the timepiece 1.
- At least one of the stops is configured to limit the angular movement of the correction mechanism 8 between its first correction position and its second non-correction position. At least one other stopper can be configured to limit the angular movement of the mobile component 14.
- the present invention has been described with reference to a particular embodiment according to which the system 4 is an anti-correction system for a month indicator 6, and in which the lower part 25 of the date indicator 5 is provided with a single protuberance 24.
- the lower part 25 of the date indicator 5 is provided with at least two protuberances. The position of each protuberance on the date indicator 5 then corresponds to a predetermined date for which the protuberance cooperates with the first end 14a of the component 14 of so as to cause the locking of the mechanism 8 in its anti-correction position.
- the manual correction of the month is prohibited during at least two predetermined days of each month.
- the system 4 is a date indicator anti-correction system.
- a lower part of the hour wheel is provided with at least one protuberance, preferably at least two protuberances.
- the position of each protuberance on the hour wheel then corresponds to a predetermined time during which the protuberance cooperates with the first end 14a of the component 14 so as to cause the locking of the mechanism 8 in its anti-correction position.
- manual correction of the date is prohibited during at least one predetermined time of each day, preferably during at least two predetermined hours of each day.
Abstract
L'invention concerne un système (4) d'anticorrection d'un indicateur (6) pour une pièce d'horlogerie (1), le système (4) comprenant un mécanisme (8) de correction de l'indicateur (6) et un rouage de correction (10) configuré pour engrener avec ledit indicateur (6), le mécanisme de correction (8) étant configuré pour être relié à un système d'actionnement de correction manuel et pour engrener avec le rouage de correction (10) dans une première position de correction, le mécanisme de correction (8) étant monté mobile entre la première position de correction et une deuxième position de non correction, caractérisé en ce que le système (4) comprend en outre un composant (14) monté mobile en rotation autour d'un axe (22), ledit composant (14) présentant une première extrémité (14a) configurée pour coopérer avec au moins une excroissance (24) prévue sur l'indicateur quantième (5) ou la roue des heures, ledit composant (14) présentant une deuxième extrémité (14b) configurée pour coopérer avec le mécanisme de correction (8) de sorte à bloquer le mécanisme (8) dans une position d'anticorrection lorsque la première extrémité (14a) du composant (14) coopère avec ladite au moins une excroissance (24).The invention relates to a system (4) for anti-correction of an indicator (6) for a timepiece (1), the system (4) comprising a mechanism (8) for correcting the indicator (6) and a correction gear (10) configured to mesh with said indicator (6), the correction mechanism (8) being configured to be connected to a manual correction actuation system and to mesh with the correction gear (10) in a first correction position, the correction mechanism (8) being mounted movably between the first correction position and a second non-correction position, characterized in that the system (4) further comprises a component (14) mounted movably in rotation about an axis (22), said component (14) having a first end (14a) configured to cooperate with at least one protuberance (24) provided on the date indicator (5) or the hour wheel, said component (14) having a second end (14b) configured to cooperate with the correction mechanism (8) so as to block the mechanism (8) in an anti-correction position when the first end (14a) of the component (14) cooperates with said at least one protuberance (24).
Description
L'invention concerne un système d'anticorrection d'un indicateur pour une pièce d'horlogerie. Sans que cela ne soit limitatif, un domaine d'application particulier de la présente invention est celui des complications horlogères de type mécanismes de quantième annuel. L'indicateur est par exemple un indicateur quantième, un indicateur de mois ou encore un indicateur de jour ou d'année ou un semainier.The invention relates to an anti-correction system for an indicator for a timepiece. Without this being limiting, a particular field of application of the present invention is that of horological complications of the annual calendar mechanism type. The indicator is for example a date indicator, a month indicator or even a day or year indicator or a weekly calendar.
L'invention concerne également une pièce d'horlogerie comportant un tel système d'anticorrection. La pièce d'horlogerie est par exemple une montre mécanique.The invention also relates to a timepiece comprising such an anti-correction system. The timepiece is for example a mechanical watch.
Un mécanisme de quantième annuel est une complication horlogère qui permet de tenir compte du fait que les douze mois de l'année n'ont pas tous le même de nombre de jours. Le mécanisme de quantième annuel est donc capable d'afficher correctement la date du premier jour des mois qui suivent un mois de trente jours. Un tel mécanisme ne tient cependant compte ni du mois de février (considéré comme un mois à trente ou trente et un jours) ni des années bissextiles. La différence de durée entre les mois est typiquement prise en compte grâce à une came possédant des parties pleines et des encoches.An annual calendar mechanism is a horological complication which takes into account the fact that the twelve months of the year do not all have the same number of days. The annual calendar mechanism is therefore capable of correctly displaying the date of the first day of the months following a thirty-day month. However, such a mechanism does not take into account either the month of February (considered as a month with thirty or thirty-one days) or leap years. The difference in duration between the months is typically taken into account thanks to a cam having solid parts and notches.
Toutefois, afin d'assurer la bonne conduite du mécanisme de quantième annuel, la correction du mois lors du trentième jour de chaque mois doit être bloquée mécaniquement au sein du système. En effet, dans le cas contraire, il existe un risque d'une désynchronisation temporaire. Un tel blocage mécanique est par exemple réalisé au moyen d'un ergot prévu sur une partie supérieure de l'indicateur quantième. La position de l'ergot sur l'indicateur quantième est choisie de telle sorte que l'ergot bloque en rotation un rouage d'entraînement au trentième jour de chaque mois, le rouage d'entraînement étant solidaire d'un rouage de correction configuré pour engrener avec l'indicateur de mois sous l'action d'un mécanisme de correction. Le mécanisme de correction est en effet configuré pour engrener avec le rouage de correction dans une position de correction, et est monté mobile entre cette position de correction et une position de non correction.However, in order to ensure the proper operation of the annual calendar mechanism, the correction of the month on the thirtieth day of each month must be mechanically blocked within the system. Indeed, otherwise, there is a risk of temporary desynchronization. Such a mechanical blocking is for example produced by means of a lug provided on an upper part of the date indicator. The position of the lug on the date indicator is chosen such that the lug blocks in rotation a drive gear on the thirtieth day of each month, the drive gear being integral with a correction gear configured to mesh with the month indicator under the action of a correction mechanism. The correction mechanism is in fact configured to mesh with the correction gear in a correction position, and is movably mounted between this correction position and a non-correction position.
Toutefois, un problème posé par ce type de blocage mécanique est que si l'utilisateur décide de corriger manuellement le mois (par exemple au moyen d'un système de correction manuel de type tige d'actionnement) lorsque l'ergot bloque en rotation le rouage d'entraînement, il existe un risque très important que l'utilisateur force le système, conduisant ainsi à une dégradation voire à une casse de certains composants tels que le rouage de correction par exemple. Afin de répondre à ce problème une solution connue consiste à prévoir, dans le mécanisme de correction de l'indicateur de mois, une pièce maintenue par friction et apte à tourner autour d'un axe, du type planche à friction. De cette manière, si l'utilisateur tente de corriger manuellement le mois alors que le rouage d'entraînement est bloqué en rotation par l'ergot prévu sur l'indicateur quantième, l'effet de friction fait tourner la planche du mécanisme de correction sur son axe, sans autre effet sur le rouage de correction. Ceci permet d'éviter toute détérioration de composant, tout en empêchant la correction manuelle. Toutefois, un inconvénient de cette solution est qu'elle n'est pas optimale dans sa réalisation et sa maîtrise. En effet, la qualité et la précision de la friction fluctue facilement avec les tolérances d'usinage de la pièce, lors de son montage, de sa lubrification (quantité ou type de lubrification) ou encore au cours de sa durée de vie (phénomènes de rodage ou d'usure).However, a problem posed by this type of mechanical blocking is that if the user decides to manually correct the month (for example by means of a manual correction system of the actuating rod type) when the lug blocks the rotation of the month. drive gear, there is a very significant risk that the user will force the system, thus leading to degradation or even breakage of certain components such as the correction gear for example. In order to respond to this problem, a known solution consists in providing, in the correction mechanism of the month indicator, a part held by friction and capable of rotating about an axis, of the friction board type. In this way, if the user attempts to manually correct the month while the drive train is locked in rotation by the lug provided on the date indicator, the effect of friction causes the plate of the correction mechanism to rotate on its axis, without any other effect on the correction gear. This is to prevent component damage, while preventing manual correction. However, a drawback of this solution is that it is not optimal in its implementation and control. Indeed, the quality and precision of the friction fluctuates easily with the machining tolerances of the part, during its assembly, its lubrication (quantity or type of lubrication) or even during its service life (phenomena of lapping or wear).
L'invention a donc pour but de fournir un système d'anticorrection d'un indicateur pour une pièce d'horlogerie, permettant d'empêcher de manière simple toute détérioration de composant en cas de tentative de correction manuelle lors d'un jour ou d'une heure pendant lequel (laquelle) la correction est interdite, et ce sans avoir à recourir à une pièce maintenue par friction.The object of the invention is therefore to provide an anti-correction system for an indicator for a timepiece, making it possible to simply prevent any deterioration of a component in the event of an attempt at manual correction during a day or two. '' an hour during which the correction is prohibited, without having to resort to a part held by friction.
A cet effet, l'invention concerne un système d'anticorrection d'un indicateur pour une pièce d'horlogerie, et qui comprend les caractéristiques mentionnées dans la revendication indépendante 1.To this end, the invention relates to an anti-correction system for an indicator for a timepiece, and which comprises the characteristics mentioned in
Des formes particulières du système d'anticorrection sont définies dans les revendications dépendantes 2 à 13.Particular forms of the anti-correction system are defined in
Selon l'invention, le système comprend un composant monté mobile en rotation autour d'un axe. Le composant présente une première extrémité configurée pour coopérer avec au moins une excroissance prévue sur l'indicateur quantième ou la roue des heures, et une deuxième extrémité configurée pour coopérer avec le mécanisme de correction de sorte à bloquer le mécanisme dans une position d'anticorrection lorsque la première extrémité du composant coopère avec ladite au moins une excroissance. Par ce mouvement, le composant tourne ainsi autour de son axe et bloque le mécanisme dans la position d'anticorrection. Le mécanisme de correction est alors stoppé avant la fin de sa course pour la correction de la date ou du mois, et tourne dans le vide. Les autres jours (non interdits) du mois, ou les autres heures (non interdites) de la journée, le composant est libre et permet au mécanisme de correction un basculement également libre depuis sa position de non correction jusqu'à sa position de correction dans laquelle il engrène avec le rouage de correction. Une telle solution selon l'invention est particulièrement simple et permet de maitriser les performances et la stabilité du système d'anticorrection, par rapport aux solutions de l'art antérieur mettant en oeuvre des pièces maintenues par friction. En outre, le système selon l'invention permet d'empêcher toute détérioration de composant en cas de tentative de correction manuelle lors d'un jour ou d'une heure pendant lequel (laquelle) la correction est interdite, tout en assurant la bonne conduite du mécanisme de quantième et en évitant tout risque de désynchronisation temporaire.According to the invention, the system comprises a component mounted mobile in rotation about an axis. The component has a first end configured to cooperate with at least one protuberance provided on the date indicator or the hour wheel, and a second end configured to cooperate with the correction mechanism so as to lock the mechanism in an anti-correction position. when the first end of the component cooperates with said at least one protuberance. By this movement, the component thus turns around its axis and locks the mechanism in the anti-correction position. The correction mechanism is then stopped before the end of its travel for the correction of the date or the month, and turns in a vacuum. On the other (non-prohibited) days of the month, or the other (non-prohibited) hours of the day, the component is free and allows the correction mechanism to switch also freely from its non-correction position to its correction position in which it meshes with the correction gear. Such a solution according to the invention is particularly simple and makes it possible to control the performance and the stability of the anti-correction system, compared to the solutions of the prior art using work of parts held by friction. In addition, the system according to the invention makes it possible to prevent any component deterioration in the event of an attempt at manual correction during a day or an hour during which (which) the correction is prohibited, while ensuring good behavior. date mechanism and avoiding any risk of temporary desynchronization.
Selon une variante de réalisation préférentielle, le composant est monté libre en rotation autour de l'axe. Cette variante permet de réduire la consommation de couple mécanique au sein du système. Elle permet en outre de réduire l'usure mécanique entre les composants du système et donc d'augmenter la longévité de ce dernier.According to a preferred variant embodiment, the component is mounted to rotate freely about the axis. This variant makes it possible to reduce the consumption of mechanical torque within the system. It also makes it possible to reduce the mechanical wear between the components of the system and therefore to increase the longevity of the latter.
Avantageusement, le système comprend en outre au moins une butée configurée pour limiter le débattement angulaire du mécanisme de correction entre ses positions de correction et de non correction.Advantageously, the system further comprises at least one stopper configured to limit the angular movement of the correction mechanism between its correction and non-correction positions.
Avantageusement, le mécanisme de correction est configuré de sorte que sa deuxième position de non correction de l'indicateur correspond à une position de correction de l'indicateur quantième ou de la roue des heures.Advantageously, the correction mechanism is configured so that its second position of non-correction of the indicator corresponds to a correction position of the date indicator or of the hour wheel.
Avantageusement, le mécanisme de correction est configuré de sorte que sa position d'anticorrection correspond à sa deuxième position de non correction de l'indicateur.Advantageously, the correction mechanism is configured so that its anti-correction position corresponds to its second position of non-correction of the indicator.
Selon une caractéristique technique particulière de l'invention, la ou chaque excroissance est prévue sur une partie inférieure de l'indicateur quantième ou de la roue des heures, et s'étend dans un plan défini par la partie inférieure dudit indicateur quantième ou de ladite roue des heures.According to a particular technical characteristic of the invention, the or each protuberance is provided on a lower part of the date indicator or of the hour wheel, and extends in a plane defined by the lower part of said date indicator or of said hour wheel.
Selon un premier mode de réalisation de l'invention, le système est un système d'anticorrection d'indicateur de mois, et l'indicateur quantième est muni d'au moins une excroissance, la position de la ou chaque excroissance sur l'indicateur quantième correspondant à un quantième prédéterminé pour lequel l'excroissance coopère avec la première extrémité du composant de sorte à provoquer le blocage du mécanisme dans sa position d'anticorrection.According to a first embodiment of the invention, the system is a month indicator anti-correction system, and the date indicator is provided with at least one protuberance, the position of the or each protuberance on the indicator. date corresponding to a date predetermined for which the protuberance cooperates with the first end of the component so as to cause the locking of the mechanism in its anti-correction position.
Selon un deuxième mode de réalisation de l'invention, le système est un système d'anticorrection d'indicateur quantième, et la roue des heures est munie d'au moins une excroissance, la position de la ou chaque excroissance sur la roue des heures correspondant à une heure prédéterminée pendant laquelle l'excroissance coopère avec la première extrémité du composant de sorte à provoquer le blocage du mécanisme dans sa position d'anticorrection.According to a second embodiment of the invention, the system is a date indicator anticorrection system, and the hour wheel is provided with at least one protuberance, the position of the or each protuberance on the hour wheel. corresponding to a predetermined time during which the protuberance cooperates with the first end of the component so as to cause the mechanism to lock in its anti-correction position.
A cet effet, l'invention concerne également un mouvement horloger comprenant le système d'anticorrection décrit ci-dessus, et qui comprend les caractéristiques mentionnées dans la revendication dépendante 14.To this end, the invention also relates to a watch movement comprising the anti-correction system described above, and which comprises the characteristics mentioned in
A cet effet, l'invention concerne également une pièce d'horlogerie comportant le mouvement horloger décrit ci-dessus et/ou le système d'anticorrection décrit ci-dessus, et qui comprend les caractéristiques mentionnées dans la revendication dépendante 15.To this end, the invention also relates to a timepiece comprising the horological movement described above and / or the anti-correction system described above, and which comprises the characteristics mentioned in dependent claim 15.
Une forme particulière de la pièce d'horlogerie est définie dans la revendication dépendante 16.A particular form of the timepiece is defined in
Les buts, avantages et caractéristiques du système d'anticorrection d'un indicateur quantième ou de mois selon l'invention apparaîtront mieux dans la description suivante sur la base d'au moins une forme d'exécution non limitative illustrée par les dessins sur lesquels :
- la
figure 1 est une vue en perspective d'une partie d'un mouvement horloger d'une montre comprenant un système d'anticorrection d'un indicateur de mois selon un mode de réalisation particulier de l'invention ; - la
figure 2 est une vue en perspective du système d'anticorrection de lafigure 1 , le système d'anticorrection comprenant un composant mobile en rotation autour d'un axe, le composant étant représenté dans une position de correction autorisée ; - la
figure 3 est une vue analogue à celle de lafigure 2 , le composant mobile étant représenté dans une position de correction interdite ; et - la
figure 4 est une vue analogue à celle de lafigure 3 , prise selon une perspective différente.
- the
figure 1 is a perspective view of part of a watch movement of a watch comprising an anti-correction system for a month indicator according to a particular embodiment of the invention; - the
figure 2 is a perspective view of the anti-correction system of thefigure 1 , the anti-correction system comprising a component movable in rotation about an axis, the component being represented in an authorized correction position; - the
figure 3 is a view analogous to that of thefigure 2 , the mobile component being shown in a prohibited correction position; and - the
figure 4 is a view analogous to that of thefigure 3 , taken from a different perspective.
Dans la description suivante, il est fait référence à un mouvement horloger muni d'un mécanisme de quantième, typiquement un mécanisme de quantième annuel. Les composants usuels du mouvement horloger, qui sont bien connus d'un homme du métier dans ce domaine technique, ne sont décrits que de manière simplifiée ou pas décrits du tout. L'homme du métier saura en effet adapter ces différents composants et les faire coopérer pour le fonctionnement du mouvement horloger. En particulier, tout ce qui concerne le mécanisme de quantième ne sera pas décrit par la suite.In the following description, reference is made to a watch movement provided with a date mechanism, typically an annual calendar mechanism. The usual components of the watch movement, which are well known to a person skilled in the art in this technical field, are only described in a simplified manner or not described at all. Those skilled in the art will in fact know how to adapt these different components and make them cooperate for the operation of the watch movement. In particular, everything relating to the date mechanism will not be described below.
Les
Le système 4 comprend un mécanisme 8 de correction de l'indicateur de mois 6, un rouage de correction 10, un rouage d'entraînement 12, et un composant mobile 14 (non représenté sur la
Le mécanisme de correction 8 est relié à un système d'actionnement de correction manuel (non représenté sur les figures), tel que par exemple une tige d'actionnement reliée à une couronne de remontoir. Le mécanisme de correction 8 est monté mobile entre une première position de correction illustrée sur les
Le rouage de correction 10 est solidaire du rouage d'entraînement 12. Comme illustré sur la
Le rouage d'entraînement 12 est monté sur le rouage de correction 10, et est par exemple configuré pour coopérer avec au moins un ergot 19 prévu sur une partie supérieure 20 de l'indicateur quantième 5. Dans l'exemple de réalisation particulier illustré sur la
En variante, la partie supérieure 20 de l'indicateur quantième 5 n'est munie d'aucun ergot. Ceci est par exemple le cas lorsque le mouvement horloger 2 est muni d'un mécanisme de quantième simple non annuel.As a variant, the
Le composant 14, qui est visible sur les
Comme illustré sur les
L'indicateur de mois 6, le mécanisme de correction 8, le rouage de correction 10, le composant mobile 14 et la butée sont par exemple montés sur une platine 26 de la pièce d'horlogerie 1.The month indicator 6, the
Au moins une des butées est configurée pour limiter le débattement angulaire du mécanisme de correction 8 entre sa première position de correction et sa deuxième position de non correction. Au moins une autre butée peut être configurée pour limiter le débattement angulaire du composant mobile 14.At least one of the stops is configured to limit the angular movement of the
La présente invention a été décrite en référence à un mode de réalisation particulier selon lequel le système 4 est un système d'anticorrection d'indicateur de mois 6, et dans lequel la partie inférieure 25 de l'indicateur quantième 5 est munie d'une seule excroissance 24. Selon un autre mode de réalisation, non représenté sur les figures, la partie inférieure 25 de l'indicateur quantième 5 est munie d'au moins deux excroissances. La position de chaque excroissance sur l'indicateur quantième 5 correspond alors à un quantième prédéterminé pour lequel l'excroissance coopère avec la première extrémité 14a du composant 14 de sorte à provoquer le blocage du mécanisme 8 dans sa position d'anticorrection. Selon ce mode de réalisation particulier, la correction manuelle du mois est interdite lors d'au moins deux jours prédéterminés de chaque mois. Selon un autre mode de réalisation encore, non représenté sur les figures, le système 4 est un système d'anticorrection d'indicateur quantième. Une partie inférieure de la roue des heures est munie d'au moins une excroissance, de préférence d'au moins deux excroissances. La position de chaque excroissance sur la roue des heures correspond alors à une heure prédéterminée pendant laquelle l'excroissance coopère avec la première extrémité 14a du composant 14 de sorte à provoquer le blocage du mécanisme 8 dans sa position d'anticorrection. Selon ce mode de réalisation particulier, la correction manuelle de la date est interdite lors d'au moins une heure prédéterminée de chaque jour, de préférence lors d'au moins deux heures prédéterminées de chaque jour.The present invention has been described with reference to a particular embodiment according to which the
Claims (16)
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EP20179603.4A EP3923084A1 (en) | 2020-06-12 | 2020-06-12 | Anti-correction system of an indicator for a timepiece |
US17/234,917 US11860578B2 (en) | 2020-06-12 | 2021-04-20 | Indicator anti-correction system for a timepiece |
JP2021071580A JP7160991B2 (en) | 2020-06-12 | 2021-04-21 | Indicator change prevention system for timepieces |
KR1020210062115A KR102614213B1 (en) | 2020-06-12 | 2021-05-13 | Indicator anti-correction system for a timepiece |
CN202110651142.4A CN113805458B (en) | 2020-06-12 | 2021-06-10 | Indicator anti-correction system for a timepiece |
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Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
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EP1335253A1 (en) * | 2002-02-11 | 2003-08-13 | Rolex Sa | Annual calendar mechanism for clockwork-movement |
EP2701014A1 (en) * | 2012-08-21 | 2014-02-26 | Rolex Sa | Clutch lever and clutch device for a clockwork mechanism |
WO2015172943A2 (en) * | 2014-05-14 | 2015-11-19 | Eta Sa Manufacture Horlogère Suisse | Clock display mechanism comprising a rapid correction |
Family Cites Families (6)
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US4240249A (en) | 1979-03-05 | 1980-12-23 | Kruglov Gennady A | Instantaneous calendar device for timepieces |
JP2651150B2 (en) | 1987-06-16 | 1997-09-10 | シチズン時計株式会社 | Clock calendar mechanism |
CH708853B1 (en) * | 2013-10-31 | 2017-11-30 | Parmigiani Fleurier SA | Hijri calendar for watch movement. |
CH709654B1 (en) * | 2014-05-14 | 2021-03-15 | Eta Sa Mft Horlogere Suisse | Clockwork rocker and rapid correction mechanism comprising such a bacule. |
EP3144743B1 (en) | 2015-09-15 | 2018-03-14 | ETA SA Manufacture Horlogère Suisse | Clock movement comprising a mechanism for correcting the date |
EP3483664B1 (en) * | 2017-11-10 | 2020-06-03 | Montres Breguet S.A. | Clockwork mechanism for displaying the lunar day and the phase of the moon, with correction system with dual drive train |
-
2020
- 2020-06-12 EP EP20179603.4A patent/EP3923084A1/en active Pending
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Publication number | Priority date | Publication date | Assignee | Title |
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EP1335253A1 (en) * | 2002-02-11 | 2003-08-13 | Rolex Sa | Annual calendar mechanism for clockwork-movement |
EP2701014A1 (en) * | 2012-08-21 | 2014-02-26 | Rolex Sa | Clutch lever and clutch device for a clockwork mechanism |
WO2015172943A2 (en) * | 2014-05-14 | 2015-11-19 | Eta Sa Manufacture Horlogère Suisse | Clock display mechanism comprising a rapid correction |
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CN113805458B (en) | 2023-02-17 |
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CN113805458A (en) | 2021-12-17 |
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