EP3460588B1 - Date mechanism - Google Patents
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- Publication number
- EP3460588B1 EP3460588B1 EP18195071.8A EP18195071A EP3460588B1 EP 3460588 B1 EP3460588 B1 EP 3460588B1 EP 18195071 A EP18195071 A EP 18195071A EP 3460588 B1 EP3460588 B1 EP 3460588B1
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- European Patent Office
- Prior art keywords
- wheel
- date
- cam
- month
- mechanism according
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 230000007246 mechanism Effects 0.000 title claims description 35
- 230000009191 jumping Effects 0.000 claims description 13
- 244000027321 Lychnis chalcedonica Species 0.000 claims description 2
- 239000000523 sample Substances 0.000 description 6
- 230000003993 interaction Effects 0.000 description 3
- 230000002457 bidirectional effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000011144 upstream manufacturing 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
- G04B19/24—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars
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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
Definitions
- the invention also relates to a timepiece comprising such a date mechanism.
- the date mechanisms are among the most appreciated horological complications, because they provide particularly useful information.
- the date in the particular field of mechanical watches, the date must generally be adjusted when a user puts on his watch after a certain period during which it has not been wound.
- Certain constructions allow rapid correction, by acting directly on the date without acting on the time indication system.
- it is not always possible or desirable to have such a rapid correction system because depending on the case, there is a risk of desynchronizing several displays.
- the document CH 680 630 A3 discloses a date mechanism according to the preamble of claim 1.
- the present invention aims to provide a new date mechanism, compact and reliable, allowing bidirectional correction and applicable to an annual calendar, a leap calendar or a perpetual calendar.
- the invention relates to a date mechanism as proposed in the claims, as well as a timepiece comprising such a date mechanism.
- the date mechanism can be arranged on an assembled module plate and kinematically connected to a basic movement, or if necessary, be integrated into a movement.
- the mechanism notably comprises a date wheel 10 intended to provide information relating to the date.
- This date wheel 10 can carry indications or a disc with the 31 numbers of the date or carry a needle intended to move opposite a graduation.
- the date wheel 10 typically has 31 teeth and is intended to be driven at a rate of one step per day, around midnight, except for the last day of a month of less than 31 days where, as will be detailed below. afterwards, it is intended to be driven by at least one additional step.
- the date wheel 10 is intended to be driven by a control wheel 12, which is driven by the watch movement.
- the control wheel 12 comprises first of all a power take-off member, in the form of a star 12.0 intended, in the example illustrated, to be pushed one step per day by a 24-hour wheel of the movement, not shown.
- a power take-off member in the form of a star 12.0 intended, in the example illustrated, to be pushed one step per day by a 24-hour wheel of the movement, not shown.
- Other types of training are also possible, for example by a rocker.
- the star 12.0 is mounted coaxially and integral in rotation with a first drive level 12.2 to drive the date wheel 10 by one step at the end of each day.
- the first training level 12.2 also takes the form of a star.
- the stars have the same number of branches and they are superimposed on each other, in order to favor the synchronization of the drive of the date wheel 10 with the time of the movement. In this case, the stars have 7 branches each.
- star 12.0 has shorter branches than those of the star 12.2, so that it has no interaction with the date wheel 10, even if it is located in the same plane as the teeth of the date wheel 10.
- the control wheel 12 also includes a second drive level 12.4 for driving the date wheel 10 by an additional step at the end of the last day of a month of 30 days, as well as a third drive level 12.6 to drive the date wheel 10 by three additional steps at the end of the last day of February, typically when it lasts 28 days.
- the third level 12.6 has actuation zones 12.62 located on branches, which have a shape similar to a branch of the Maltese cross.
- the second level 12.4 has actuation zones 12.42 interposed between the branches of the second level 12.4, advantageously in the shape of a U, opening to the outside, that is to say in the direction of the date wheel 10.
- the actuation zones are symmetrical with respect to a radius of the control wheel 12, allowing operation in both directions of rotation, as will be understood below.
- the spokes forming the axes of symmetry of the actuation zones 12.42 of the second level 12.4 are superimposed on the branches of the stars 12.0 and 12.2, while the rays forming the axes of symmetry of the actuation zones 12.62 of the third level 12.6 are superimposed on the bisectors angles formed by the rays of two branches of stars 12.0, 12.2 juxtaposed.
- the second 12.4 and third 12.6 drive levels may have come in one piece, the actuation zones 12.62 of the third level 12.6 extending, in a separate plane, the actuation zones 12.42 of the second level 12.4.
- the control wheel 12 thus has three separate drive levels 12.2, 12.4, 12.6, capable of cooperating with the date wheel 10, at determined times, as will appear below.
- the annual cam 10.1 is arranged in a satellite manner on the date wheel 10. It is integral with a drive board 10.3, intended to be driven by cooperating with a fixed finger 14, located in the center of the date wheel 10, and around which the date wheel 10 pivots.
- the drive board 10.3 typically has 12 teeth and advances by one step for each revolution made by the date wheel 10, that is to say each month.
- the annual cam 10.1 has a profile defining portions of different radii, corresponding to the different months.
- the radii of said portions are determined so as to angularly position, in a synchronized manner, the end-of-month jump mobile 10.0 in relation to the control wheel 12.
- 12 portions are thus defined, one per month, it being understood that if two consecutive months have the same number of days (July-August and December-January), the two consecutive portions of the same radius are extended.
- the 31-day months correspond to portions of the cam 10.1 having the largest radii
- the 30-day months correspond to portions of the cam 10.1 having relatively small radii
- the portion corresponding to the month of February has the smallest radius, forming a notch in the cam 10.1.
- the probe 10.2 is held in contact with the profile of the cam 10.1.
- the cam 10.1 to pivot in both directions and thus to have a bidirectional date drive, in particular in the case of correction, the variations of the cam radii are progressive.
- the profile of the fixed finger 14 and that of the teeth of the drive board 10.3, are arranged so as to allow rotation of the board in both directions of rotation, depending on whether the date wheel rotates in the opposite direction. clockwise (with reference to the figure 8 , which is a bottom view), or clockwise (with reference to the figure 9 , which is also a bottom view).
- the feeler 10.2 is carried by a rocker 11 further carrying a rack 10.4, engaged with a pinion 10.5 secured to an intermediate rake 10.6, which is engaged with a second sprocket 10.7, secured to the end of month jumping mobile 10.0 .
- All the elements of the kinematic link between the probe 10.2 and the end of month jump mobile 10.0 are mounted on the date wheel 10. However, the detail of this kinematic link is given by way of example not limiting.
- the date wheel 10 also carries a spring 13 (visible on the figures 1 , 3 and 5 ) arranged to apply a force to a finger 13.1 (visible on the Figures 7 and 8 ) carried by the rocker 11 to hold the probe 10.2 in abutment against the cam 10.1.
- the end of month jump mobile 10.0 comprises two arms 10.01 and 10.02 , of different lengths.
- a first arm 10.01, long, is arranged to cooperate with the second level 12.4 of the control wheel 12 at the end of the 30-day months, to cause the date wheel 10 to take an additional step ( Fig. 4 ).
- a second arm 10.02, short, is arranged to cooperate with the third level 12.6 of the control wheel 12 at the end of the month of 28 days, to cause the date wheel 10 to take three additional steps.
- the interaction between the second arm 10.02 and the third level 12.6 is visible on the figure 6 , but in the case of a correction, that is to say with the control wheel located upstream side, in the direction of rotation indicated by the arrow.
- the end of month jump mobile 10.0 comprises only one arm, corresponding to the long arm 10.01 above, and the control wheel 12 includes only the first 12.2 and second 12.4 drive levels.
- the month-end jumping mobile 10.0 has no arms in the travel of the control wheel 10.0, with the consequence that the date wheel 10, on the evening of the last day of the month, is driven in a single step by the first level 12.2 of the control wheel 12.
- the long arm 10.01 is positioned in the travel of the control wheel 12, with the consequence that the date wheel 10, on the evening of the last day of the month, is driven by one step. the first level 12.2 of the control wheel 12, and an additional step by the second level 12.4 of the control wheel 12.
- the month of February can be treated as a month of 30 or 31 days, the display of the calendar at the end of February having to be managed manually.
- the date mechanism is adapted to provide a perpetual calendar, taking into account the months of February in leap years.
- the annual cam 10.1 is associated with a leap cam 10.8 arranged to make a turn in 4 years and position every 4 years, at the level of the notch in February of the cam, a portion of larger radius.
- the probe 10.2 is arranged to cooperate with the annual cam 10.1 and the leap cam 10.8, in order to cooperate with the latter when it takes position in the notch of February. It will be noted that over three-quarters of its perimeter, the leap cam 10.8 has a radius less than the February portion of the annual cam 10.1, so that the feeler 10.2 cooperates, in February in non-leap years, only with the annual cam 10.1.
- the annual cam 10.1 is integral with a pinion 10.9, engaged with a first stage of a deflection mobile 10.10, which includes a second stage also engaged with a leap drive board 10.11, integral with the leap cam 10.8, the gear ratios being determined so that the leap cam 10.8 performs one revolution in 4 years.
- the end-of-month jump mobile 10.0 comprises a third arm 10.03, of intermediate length between the long arm 10.01 and the short arm 10.02, arranged to be positioned in the travel of the control wheel 12, particularly of its third level 12.6, when the probe 10.2 is in contact with the leap cam 10.8.
- the third arm 10.03 is angularly offset from the second arm 10.02, being located in the same plane.
- the intermediate arm 10.03 is positioned in the travel of the control wheel 12, with the consequence that the date wheel 10, on the evening of the last day of the month, is driven by a step by the first level 12.2 of the control wheel 12, and two additional steps by the third level 12.6 of the control wheel 12.
- the date mechanism may also include a locking system 10.12 of the end jump mobile of month 10.0.
- This locking system 10.12 is designed to block the rotation of this mobile with reference to its axis, at least when said end-of-month jump mobile 10.0 cooperates with the control wheel 12.
- the locking system 10.12 comprises a locking lever 10.13, positioned by a locking cam 16, fixedly mounted in the center of the date wheel 10 which pivots with reference to it.
- the locking lever 10.13 comprises a feeler 10.15 held in contact with the locking cam 16, and a lug 10.14 able to cooperate with the end of month jump mobile 10.0 to block its rotation.
- the lug 10.14 of the locking lever 10.13 falls into the teeth of the end of month jump mobile 10.0 , thus blocking its rotation on its axis, allowing energy to be transmitted between the control wheel 12 and the date wheel 10.
- the invention also relates to a timepiece comprising a date mechanism as described above.
- the date system according to the invention makes it possible to operate by rotating the control wheel both directions, either under the action of movement, or under the action of a corrector kinematically connected to the control wheel.
- This corrector can act via the hour wheel, or be a rapid corrector, acting directly on the control wheel, typically the star 12.0 for example.
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electromechanical Clocks (AREA)
Description
La présente invention se rapporte au domaine de l'horlogerie. Elle concerne, plus particulièrement, un mécanisme de quantième comprenant :
- une roue de quantième destinée à fournir une information relative au quantième,
- une roue de commande destinée à être entraînée par un mouvement horloger et à entraîner la roue de quantième d'au moins un pas par jour.
- a date wheel intended to provide information relating to the date,
- a control wheel intended to be driven by a watch movement and to drive the date wheel by at least one step per day.
L'invention concerne également une pièce d'horlogerie comportant un tel mécanisme de quantième.The invention also relates to a timepiece comprising such a date mechanism.
Les mécanismes de quantième sont parmi les complications horlogères les plus appréciées, car elles fournissent une information particulièrement utile. Cependant, dans le domaine particulier des montres mécaniques, le quantième doit généralement être réglé lorsqu'un utilisateur met sa montre après une certaine période pendant laquelle elle n'a pas été remontée. Certaines constructions permettent d'effectuer une correction rapide, en agissant directement sur le quantième sans agir sur le système d'indication des heures. Cependant, il n'est pas toujours possible ni souhaitable d'avoir un tel système de correction rapide, car selon les cas, il existe un risque de désynchroniser plusieurs affichages.The date mechanisms are among the most appreciated horological complications, because they provide particularly useful information. However, in the particular field of mechanical watches, the date must generally be adjusted when a user puts on his watch after a certain period during which it has not been wound. Certain constructions allow rapid correction, by acting directly on the date without acting on the time indication system. However, it is not always possible or desirable to have such a rapid correction system, because depending on the case, there is a risk of desynchronizing several displays.
Aussi, lorsque le quantième est réglé par l'intermédiaire de la roue des heures, c'est-à-dire que l'aiguille des heures doit effectuer deux tours pour changer le quantième d'une unité, il est particulièrement appréciable de pouvoir effectuer la correction dans les deux sens, afin de limiter le nombre de tours à effectuer.Also, when the date is set via the hour wheel, that is to say that the hour hand must make two turns to change the date by one unit, it is particularly appreciable to be able to carry out correction in both directions, in order to limit the number of turns to be performed.
Or, parmi les mécanismes de quantième, notamment les quantièmes annuels qui permettent de tenir compte de la durée des mois de 31 ou 30 jours, ou les quantièmes perpétuels, qui tiennent compte en outre de la durée des mois de février de 28 ou 29 jours, rares sont les systèmes qui permettent une correction dans les deux sens.However, among the date mechanisms, in particular the annual calendars which make it possible to take into account the duration of the months of 31 or 30 days, or the perpetual calendars, which also take into account the duration of the months of February 28 or 29 days, there are few systems that allow a correction in both directions.
Le document
La présente invention a pour but de proposer un nouveau mécanisme de quantième, compact et fiable, permettant une correction bidirectionnelle et applicable à un quantième annuel, un quantième bissextile ou à un quantième perpétuel.The present invention aims to provide a new date mechanism, compact and reliable, allowing bidirectional correction and applicable to an annual calendar, a leap calendar or a perpetual calendar.
De façon plus précise, l'invention concerne un mécanisme de quantième tel que proposé dans les revendications, ainsi qu'une pièce d'horlogerie comprenant un tel mécanisme de quantième.More specifically, the invention relates to a date mechanism as proposed in the claims, as well as a timepiece comprising such a date mechanism.
D'autres détails de l'invention apparaîtront plus clairement à la lecture de la description qui suit, faite en référence au dessin annexé dans lequel :
- les
figures 1 et 2 sont des vues en perspective, respectivement de dessus et de dessous, d'un mécanisme selon un mode de réalisation préféré de l'invention, - les
figures 3 et 4 représentent ce même mécanisme, en plan, respectivement en vue de dessus et de dessous, lors du passage du 30 d'un mois, au 1er du mois suivant, soit lors d'une correction en avant ou lors d'un entraînement normal par le mouvement, - les
figures 5 et 6 représentent ce même mécanisme, en plan, respectivement en vue de dessus et de dessous, lors du passage du 1er d'un mois de mars, au 28 du mois de février précédent, c'est-à-dire lors d'une correction en arrière, - les
figures 7 et 8 montrent des détails du système, dans les deux sens d'entraînement d'une correction, et - la
figure 9 montre en détail les éléments relatifs à la prise en compte des années bissextiles.
- the
Figures 1 and 2 are perspective views, respectively from above and from below, of a mechanism according to a preferred embodiment of the invention, - the
figures 3 and 4 represent this same mechanism, in plan, respectively from above and below, when passing from the 30th of a month, to the 1st of the following month, either during a correction in advance or during a normal training by movement, - the
Figures 5 and 6 represent this same mechanism, in plan, respectively in top view and below, during the passage from the 1st of a month of March, to the 28 of the previous February, that is to say during a correction in back, - the
Figures 7 and 8 show details of the system, in both directions driving a correction, and - the
figure 9 shows in detail the elements relating to the taking into account of leap years.
On a représenté sur la
Le mécanisme comprend notamment une roue de quantième 10 destinée à fournir une information relative au quantième. Cette roue de quantième 10 peut porter des indications ou un disque avec les 31 nombres du quantième ou porter une aiguille destinée à se déplacer en regard d'une graduation. La roue de quantième 10 comporte typiquement 31 dents et est destinée à être entraînée à raison de un pas par jour, aux environs de minuit, sauf pour le dernier jour d'un mois de moins de 31 jours où, comme on le détaillera ci-après, elle est destinée à être entraînée d'au moins un pas supplémentaire.The mechanism notably comprises a
La roue de quantième 10 est destinée à être entraînée par une roue de commande 12, qui elle est entraînée par le mouvement horloger.The
La roue de commande 12 comprend tout d'abord un organe de prise de force, en la forme d'une étoile 12.0 destinée, dans l'exemple illustré, à être poussée d'un pas par jour par une roue de 24h du mouvement, non représentée. D'autres types d'entraînement sont également possibles, par exemple par une bascule.The
L'étoile 12.0 est montée coaxiale et solidaire en rotation avec un premier niveau d'entraînement 12.2 pour entraîner la roue de quantième 10 d'un pas à la fin de chaque jour. Le premier niveau d'entraînement 12.2 prend également la forme d'une étoile. De préférence, les étoiles comportent le même nombre de branches et elles sont superposées l'une à l'autre, afin de favoriser la synchronisation de l'entraînement de la roue de quantième 10 avec l'heure du mouvement. En l'espèce, les étoiles présentent 7 branches chacune.The star 12.0 is mounted coaxially and integral in rotation with a first drive level 12.2 to drive the
Pour permettre de réduire les épaisseurs du mécanisme tout en contrôlant les interactions de l'étoile 12.0 et de celle du premier niveau d'entraînement 12.2, avec les différents éléments du mécanisme, l'étoile 12.0 présente des branches plus courtes que celles de l'étoile 12.2, afin qu'elle n'ait pas d'interaction avec la roue de quantième 10, même si elle est située dans le même plan que la denture de la roue de quantième 10.To allow the thicknesses of the mechanism to be reduced while controlling the interactions of star 12.0 and that of the first training level 12.2, with the various elements of the mechanism, star 12.0 has shorter branches than those of the star 12.2, so that it has no interaction with the
La roue de commande 12 comporte également un deuxième niveau d'entraînement 12.4 pour entraîner la roue de quantième 10 d'un pas supplémentaire à la fin du dernier jour d'un mois de 30 jours, ainsi qu'un troisième niveau d'entraînement 12.6 pour entraîner la roue de quantième 10 de trois pas supplémentaires à la fin du dernier jour du mois de février, typiquement lorsqu'il dure 28 jours.The
Plus particulièrement, le troisième niveau 12.6 présente des zones d'actionnement 12.62 situées sur des branches, qui présentent une forme similaire à une branche de croix de Malte. Le deuxième niveau 12.4 présente des zones d'actionnement 12.42 intercalées entre les branches du deuxième niveau 12.4, avantageusement en forme de U, s'ouvrant sur l'extérieur, c'est-à-dire en direction de la roue de quantième 10. Pour ces deux niveaux 12.4, 12.6, les zones d'actionnement sont symétriques par rapport à un rayon de la roue de commande 12, permettant un fonctionnement dans les deux sens de rotation, comme on le comprendra ci-après.More particularly, the third level 12.6 has actuation zones 12.62 located on branches, which have a shape similar to a branch of the Maltese cross. The second level 12.4 has actuation zones 12.42 interposed between the branches of the second level 12.4, advantageously in the shape of a U, opening to the outside, that is to say in the direction of the
Pour chaque niveau 12.4, 12.6, on a 7 zones d'actionnement, respectivement 12.42 et 12.62. Les rayons formant les axes de symétrie des zones d'actionnement 12.42 du deuxième niveau 12.4 sont superposés aux branches des étoiles 12.0 et 12.2, tandis que les rayons formant les axes de symétrie des zones d'actionnement 12.62 du troisième niveau 12.6 sont superposés aux bissectrices des angles formés par les rayons de deux branches d'étoiles 12.0, 12.2 juxtaposées.For each level 12.4, 12.6, there are 7 actuation zones, respectively 12.42 and 12.62. The spokes forming the axes of symmetry of the actuation zones 12.42 of the second level 12.4 are superimposed on the branches of the stars 12.0 and 12.2, while the rays forming the axes of symmetry of the actuation zones 12.62 of the third level 12.6 are superimposed on the bisectors angles formed by the rays of two branches of stars 12.0, 12.2 juxtaposed.
Comme on peut le voir particulièrement sur les
La roue de commande 12 comporte ainsi trois niveaux d'entraînement 12.2, 12.4, 12.6 distincts, aptes à coopérer avec la roue de quantième 10, à des moments déterminés, comme il apparaîtra plus loin.The
Pour ce faire, outre sa denture de 31 destinée à coopérer avec le premier niveau d'entraînement 12.2 de la roue de commande 12, la roue de quantième 10 porte :
- un mobile de saut de fin de mois 10.0, destiné à coopérer avec le deuxième 12.4 ou le troisième 12.6 niveaux d'entraînement de la roue de
commande 12 à la fin des mois de moins de 31 jours, ledit mobile de saut de fin de mois 10.0 étant monté de manière satellitaire sur la roue dequantième 10, - un ensemble d'une came annuelle 10.1 et d'un palpeur 10.2 agencé pour positionner angulairement le mobile de saut de fin de mois 10.0 en référence à son propre axe de rotation sur la roue de
quantième 10.
- an end-of-month jump mobile 10.0, intended to cooperate with the second 12.4 or the third 12.6 drive levels of the
control wheel 12 at the end of the months less than 31 days, said end-of-month jump mobile 10.0 being mounted by satellite on thedate wheel 10, - a set of an annual cam 10.1 and a feeler 10.2 arranged to angularly position the end of month jump mobile 10.0 with reference to its own axis of rotation on the
date wheel 10.
La came annuelle 10.1 est agencée de manière satellitaire sur la roue de quantième 10. Elle est solidaire d'une planche d'entraînement 10.3, destinée à être entraînée en coopérant avec un doigt fixe 14, situé au centre de la roue de quantième 10, et autour duquel pivote la roue de quantième 10. La planche d'entraînement 10.3 comporte typiquement 12 dents et avance d'un pas à chaque tour effectué par la roue de quantième 10, c'est-à-dire chaque mois.The annual cam 10.1 is arranged in a satellite manner on the
Comme on peut le voir particulièrement sur les
Ainsi, les mois de 31 jours correspondent à des portions de la came 10.1 présentant les plus grands rayons, les mois de 30 jours correspondent à des portions de la came 10.1 présentant des rayons relativement plus petits, et la portion correspondant au mois de février présente le plus petit rayon, formant une échancrure dans la came 10.1.Thus, the 31-day months correspond to portions of the cam 10.1 having the largest radii, the 30-day months correspond to portions of the cam 10.1 having relatively small radii, and the portion corresponding to the month of February has the smallest radius, forming a notch in the cam 10.1.
Le palpeur 10.2 est maintenu au contact du profil de la came 10.1. Pour permettre de faire pivoter la came 10.1 dans les deux sens et d'avoir ainsi un entraînement bidirectionnel du quantième, notamment dans le cas de correction, les variations de rayons de la came sont progressives. De même, le profil du doigt fixe 14 et celui des dentures de la planche d'entraînement 10.3, sont agencés de manière à permettre une rotation de la planche dans les deux sens de rotation, selon si la roue de quantième tourne dans le sens inverse des aiguilles d'une montre (en référence à la
Le palpeur 10.2 est porté par une bascule 11 portant par ailleurs une crémaillère 10.4, en prise avec un pignon 10.5 solidaire d'un râteau intermédiaire 10.6, lequel est en prise avec un deuxième pignon 10.7, solidaire du mobile de saut de fin de mois 10.0. Tous les éléments de la liaison cinématique entre le palpeur 10.2 et le mobile de saut de fin de mois 10.0 sont montés sur la roue de quantième 10. Cependant, le détail de cette liaison cinématique n'est donné qu'à titre d'exemple non limitatif.The feeler 10.2 is carried by a
On notera que la roue de quantième 10 porte en outre un ressort 13 (visible sur les
Dans un mode de réalisation de type quantième bissextile, c'est-à-dire tenant compte des mois de 30 jours et de 28 jours, mais pas de 29 jours, le mobile de saut de fin de mois 10.0 comprend deux bras 10.01 et 10.02, de longueurs différentes. Un premier bras 10.01, long, est agencé pour coopérer avec le deuxième niveau 12.4 de la roue de commande 12 à la fin des mois de 30 jours, pour faire faire à la roue de quantième 10 un pas supplémentaire (
Ainsi, en fonction du rayon de la portion de la came 10.1 avec laquelle coopère le palpeur 10.2, le mobile de saut de fin de mois 10.0 présente dans la course de la roue de commande 12 :
- aucun bras, pour les mois de 31 jours, avec comme conséquence que la roue de quantième 10, au soir du dernier jour du mois, est entraînée d'un seul pas par le premier niveau 12.2 de la roue de commande 12,
- le bras long, pour les mois de 30 jours, avec comme conséquence que la roue de quantième 10, au soir du dernier jour du mois, est entraînée d'un pas par le premier niveau 12.2 de la roue de commande 12, et d'un pas supplémentaire par le deuxième niveau 12.4 de la roue de commande 12, ou
- le bras court, pour les mois de février, avec comme conséquence que la roue de quantième 10, au soir du dernier jour du mois, est entraînée d'un pas par le premier niveau 12.2 de la roue de commande 12, et de trois pas supplémentaires par le troisième niveau 12.6 de la roue de commande 12.
- no arms, for the months of 31 days, with the consequence that the
date wheel 10, on the evening of the last day of the month, is driven with a single step by the first level 12.2 of thecontrol wheel 12, - the long arm, for the months of 30 days, with the consequence that the
date wheel 10, on the evening of the last day of the month, is driven by one step by the first level 12.2 of thecontrol wheel 12, and an additional step via the second level 12.4 of thecontrol wheel 12, or - the short arm, for the months of February, with the consequence that the
date wheel 10, on the evening of the last day of the month, is driven by one step by the first level 12.2 of thecontrol wheel 12, and by three steps additional by the third level 12.6 of thecontrol wheel 12.
Avec cette construction, dans le cas d'année bissextile, il faudra gérer manuellement le réglage de la fin du mois de février.With this construction, in the case of a leap year, the setting for the end of February will have to be managed manually.
Dans un mode de réalisation non représenté permettant d'obtenir un quantième annuel, c'est-à-dire ne tenant compte que des mois de 30 et 31 jours, le mobile de saut de fin de mois 10.0 ne comprend qu'un bras, correspondant au bras long 10.01 ci-dessus, et la roue de commande 12 ne comprend que les premier 12.2 et deuxième 12.4 niveaux d'entraînement.In an embodiment not shown making it possible to obtain an annual calendar, that is to say taking into account only the months of 30 and 31 days, the end of month jump mobile 10.0 comprises only one arm, corresponding to the long arm 10.01 above, and the
A la fin des mois de 31 jours, comme ci-dessus, le mobile de saut de fin de mois 10.0 ne présente aucun bras dans la course de la roue de commande 10.0, avec comme conséquence que la roue de quantième 10, au soir du dernier jour du mois, est entraînée d'un seul pas par le premier niveau 12.2 de la roue de commande 12.At the end of the 31-day months, as above, the month-end jumping mobile 10.0 has no arms in the travel of the control wheel 10.0, with the consequence that the
A la fin des mois de 30 jours, le bras long 10.01 est positionné dans la course de la roue de commande 12, avec comme conséquence que la roue de quantième 10, au soir du dernier jour du mois, est entraînée d'un pas par le premier niveau 12.2 de la roue de commande 12, et d'un pas supplémentaire par le deuxième niveau 12.4 de la roue de commande 12.At the end of the 30-day months, the long arm 10.01 is positioned in the travel of the
Le mois de février peut être traité comme un mois de 30 ou 31 jours, l'affichage du quantième à la fin des mois de février devant être géré manuellement.The month of February can be treated as a month of 30 or 31 days, the display of the calendar at the end of February having to be managed manually.
Dans un mode de réalisation préféré, notamment illustré particulièrement à la
Pour ce faire, la came annuelle 10.1 est associée à une came bissextile 10.8 agencée pour faire un tour en 4 ans et positionner tous les 4ans, au niveau de l'encoche de février de la came, une portion de rayon plus grand.To do this, the annual cam 10.1 is associated with a leap cam 10.8 arranged to make a turn in 4 years and position every 4 years, at the level of the notch in February of the cam, a portion of larger radius.
Pour ce qui concerne les plans de partagement, le palpeur 10.2 est agencé pour coopérer avec la came annuelle 10.1 et la came bissextile 10.8, afin de coopérer avec celle-ci lorsqu'elle prend position dans l'encoche de février. On notera que sur les trois quarts de son périmètre, la came bissextile 10.8 présente un rayon inférieur à la portion de février de la came annuelle 10.1, afin que le palpeur 10.2 ne coopère, les mois de février des années non bissextiles, qu'avec la came annuelle 10.1.With regard to the sharing plans, the probe 10.2 is arranged to cooperate with the annual cam 10.1 and the leap cam 10.8, in order to cooperate with the latter when it takes position in the notch of February. It will be noted that over three-quarters of its perimeter, the leap cam 10.8 has a radius less than the February portion of the annual cam 10.1, so that the feeler 10.2 cooperates, in February in non-leap years, only with the annual cam 10.1.
Pour piloter la came bissextile 10.8, la came annuelle 10.1 est solidaire d'un pignon 10.9, en prise avec un premier étage d'un mobile de renvoi 10.10, qui comporte un deuxième étage également en prise avec une planche d'entraînement bissextile 10.11, solidaire de la came bissextile 10.8, les rapports d'engrenage étant déterminés pour que la came bissextile 10.8 effectue un tour en 4ans.To control the leap cam 10.8, the annual cam 10.1 is integral with a pinion 10.9, engaged with a first stage of a deflection mobile 10.10, which includes a second stage also engaged with a leap drive board 10.11, integral with the leap cam 10.8, the gear ratios being determined so that the leap cam 10.8 performs one revolution in 4 years.
Dans ce mode de réalisation, le mobile de saut de fin de mois 10.0 comporte un troisième bras 10.03, de longueur intermédiaire entre le bras long 10.01 et le bras court 10.02, agencé pour être positionné dans la course de la roue de commande 12, particulièrement de son troisième niveau 12.6, lorsque le palpeur 10.2 est en appui sur la came bissextile 10.8. Typiquement, le troisième bras 10.03 est décalé angulairement par rapport au deuxième bras 10.02, en étant situé dans le même plan.In this embodiment, the end-of-month jump mobile 10.0 comprises a third arm 10.03, of intermediate length between the long arm 10.01 and the short arm 10.02, arranged to be positioned in the travel of the
Ainsi, à la fin des mois de 29 jours, le bras intermédiaire 10.03 est positionné dans la course de la roue de commande 12, avec comme conséquence que la roue de quantième 10, au soir du dernier jour du mois, est entraînée d'un pas par le premier niveau 12.2 de la roue de commande 12, et de deux pas supplémentaires par le troisième niveau 12.6 de la roue de commande 12.Thus, at the end of the 29-day months, the intermediate arm 10.03 is positioned in the travel of the
Afin d'assurer une bonne transmission du couple entre le(s) bras du mobile de saut de fin de mois 10.0 et la roue de commande 12, le mécanisme de quantième peut encore comporter un système de verrouillage 10.12 du mobile de saut de fin de mois 10.0. Ce système de verrouillage 10.12 est agencé pour bloquer la rotation de ce mobile en référence à son axe, au moins lorsque ledit mobile de saut de fin de mois 10.0 coopère avec la roue de commande 12. Ainsi, on peut monter de manière très libre le mobile de saut de fin de mois 10.0, afin de consommer peu d'énergie pour positionner le mobile de saut de fin de mois 10.0.In order to ensure good transmission of the torque between the arm (s) of the end of month jump mobile 10.0 and the
De manière avantageuse, le système de verrouillage 10.12 comporte une bascule de verrouillage 10.13, positionnée par une came de verrouillage 16, montée fixe au centre de la roue de quantième 10 qui pivote en référence à elle. La bascule de verrouillage 10.13 comprend un palpeur 10.15 maintenu au contact de la came de verrouillage 16, et un ergot 10.14 apte à coopérer avec le mobile de saut de fin de mois 10.0 pour bloquer sa rotation.Advantageously, the locking system 10.12 comprises a locking lever 10.13, positioned by a locking
Ainsi, lors des fins de mois, typiquement à partir du 26, lorsque le mobile de saut de fin de mois 10.0 est positionné, l'ergot 10.14 de la bascule de verrouillage 10.13 tombe dans la denture du mobile de saut de fin de mois 10.0, bloquant ainsi sa rotation sur son axe, permettant une transmission de l'énergie entre la roue de commande 12 et la roue de quantième 10.Thus, at the end of the month, typically from the 26th, when the end of month jump mobile 10.0 is positioned, the lug 10.14 of the locking lever 10.13 falls into the teeth of the end of month jump mobile 10.0 , thus blocking its rotation on its axis, allowing energy to be transmitted between the
L'invention concerne également une pièce d'horlogerie comprenant un mécanisme de quantième tel que décrit ci-dessus.The invention also relates to a timepiece comprising a date mechanism as described above.
Ainsi, grâce à la configuration des éléments menés et des éléments menants, ainsi que des cames et des palpeurs, le système de quantième selon l'invention permet de fonctionner en faisant tourner la roue de commande dans les deux sens, soit sous l'action du mouvement, soit sous l'action d'un correcteur relié cinématiquement à la roue de commande. Ce correcteur peut agir par l'intermédiaire de la roue des heures, ou être un correcteur rapide, agissant directement sur la roue de commande, typiquement l'étoile 12.0 par exemple.Thus, thanks to the configuration of the driven elements and of the driving elements, as well as of the cams and of the feelers, the date system according to the invention makes it possible to operate by rotating the control wheel both directions, either under the action of movement, or under the action of a corrector kinematically connected to the control wheel. This corrector can act via the hour wheel, or be a rapid corrector, acting directly on the control wheel, typically the star 12.0 for example.
Ainsi est proposé un mécanisme de quantième particulièrement fiable et compact, qui peut être actionné dans les deux sens par un système de correction. L'homme du métier peut directement l'adapter pour réaliser un quantième simple, un quantième bissextile ou un quantième annuel. L'exemple décrit ci-dessus, en référence aux figures, a été donné à titre d'illustration non limitative de l'invention, dont la portée est définie par les revendications.Thus a particularly reliable and compact date mechanism is proposed, which can be actuated in both directions by a correction system. A person skilled in the art can directly adapt it to produce a simple calendar, a leap calendar or an annual calendar. The example described above, with reference to the figures, has been given by way of nonlimiting illustration of the invention, the scope of which is defined by the claims.
Claims (14)
- Date mechanism comprising- a date wheel (10) intended to provide an item of information relating to the date,- a control wheel (12) intended to be driven by a clockwork movement and to drive the date wheel (10) by at least one step per day,in which the control wheel (12) comprises:- a first drive level (12.2) for driving the date wheel (10) by one step at the end of each day,- a second drive level (12.4) for driving the date wheel (10) by an additional step at the end of the last day of a month comprising 30 days,and in which the date wheel (10) bears:- a jumping end-of-month wheel (10.0), intended to collaborate with the second drive level (12.4) of the control wheel (12) at least at the end of months comprising 30 days, the said jumping end-of-month wheel (10.0) being mounted in the manner of a satellite on the date wheel (10),characterized in that the date wheel (10) also bears:- an assembly of an annual cam (10.1) and of a feeler-spindle (10.2), the latter being borne by a lever (11) and being designed to position the jumping end-of-month wheel (10.0) angularly with reference to its own axis of rotation on the date wheel (10).
- Date mechanism according to Claim 1, characterized in that the annual cam (10.1) is secured to a drive plate (10.3) intended to be driven by its collaboration with a finger (14) fixed at the centre of the date wheel (10).
- Date mechanism according to one of Claims 1 and 2, characterized in that the annual cam (10.1) has a profile defining portions with different radii, the said feeler-spindle (10.2) being kept in contact with the profile of the annual cam (10.1), the radii of the said portions being determined in such a way as to angularly position the jumping end-of-month wheel (10.0) synchronously in relation to the control wheel (12).
- Date mechanism according to one of the preceding claims, characterized in that the feeler-spindle (10.2) is secured to a rack (10.4) in mesh with a pinion (10.5) secured to an intermediate rack (10.6) which is in mesh with a second pinion (10.7) secured to the jumping end-of-month wheel (10.0).
- Date mechanism according to one of the preceding claims, characterized in that the control wheel (12) comprises a third drive level (12.6) for driving the date wheel (10) by three additional steps at the end of the last day of a month comprising 28 days.
- Date mechanism according to Claim 5, characterized in that the jumping end-of-month wheel (10.0) comprises at least two arms (10.01, 10.02) of different lengths which are intended respectively to collaborate with the second drive level (12.4) and with the third drive level (12.6).
- Date mechanism according to one of Claims 5 and 6, characterized in that the third drive level (12.6) has actuation zones (12.62) situated on branches, the second level (12.4) having actuation zones (12.42) intercalated between the branches of the third level (12.6), the said actuation zones (12.42, 12.62) being symmetrical with respect to a radius of the control wheel (12), allowing the jumping end-of-month wheel to be actuated in both directions of rotation.
- Date mechanism according to Claim 7, characterized in that the said branches have a shape similar to a branch of a Maltese cross, and the actuation zones (12.42) of the second level (12.4) are in the shape of a U, open to the outside.
- Date mechanism according to one of Claims 5 to 8, characterized in that the annual cam (10.1) is associated with a bissextile cam (10.8) designed to effect one revolution in four years and to position, every four years, in the February notch of the cam, a cam portion having a larger radius than the February portion of the annual cam (10.1),
and in that the feeler-spindle (10.2) is designed to collaborate with either the annual cam (10.1) or the bissextile cam (10.8), according to whether the bissextile cam (10.8) protrudes radially beyond the annual cam (10.1). - Date mechanism according to Claim 9, characterized in that the annual cam (10.1) is secured to a pinion (10.9) in mesh with a first stage of an intermediate wheel (10.10) which comprises a second stage likewise in mesh with a bissextile drive plate (10.11) secured to the bissextile cam (10.8), the gear ratios being determined so that the bissextile cam (10.8) effects one revolution in four years.
- Date mechanism according to one of Claims 9 and 10, characterized in that the jumping end-of-month wheel (10.0) comprises three arms.
- Date mechanism according to one of the preceding claims, characterized in that the date wheel (10) further bears a jumping end-of-month wheel (10.0) locking system (10.12) designed to block the rotation of this wheel with reference to its axis, at least when the said jumping end-of-month wheel (10.0) is collaborating with the control wheel (12).
- Date mechanism according to Claim 12, characterized in that the locking system (10.12) comprises a locking lever (10.13), positioned by a locking cam (16), mounted fixed at the centre of the date wheel (10) which pivots with reference thereto, the locking lever (10.13) comprising a lug (10.14) able to collaborate with the jumping end-of-month wheel (10.0) to block its rotation.
- Timepiece comprising a date mechanism according to one of the preceding claims.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH01156/17A CH714178A1 (en) | 2017-09-20 | 2017-09-20 | Annual calendar mechanism. |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3460588A1 EP3460588A1 (en) | 2019-03-27 |
EP3460588B1 true EP3460588B1 (en) | 2020-01-01 |
Family
ID=60164547
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP18195071.8A Active EP3460588B1 (en) | 2017-09-20 | 2018-09-18 | Date mechanism |
Country Status (2)
Country | Link |
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EP (1) | EP3460588B1 (en) |
CH (1) | CH714178A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
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EP3832397B1 (en) * | 2019-12-05 | 2023-09-06 | Blancpain SA | Stepwise timepiece display mechanism |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH481414A (en) * | 1966-12-22 | 1969-07-31 | Certina Kurth Freres S A | Calendar timepiece |
EP2597537B1 (en) * | 2011-02-17 | 2014-04-16 | Glashütter Uhrenbetrieb GmbH | Calendar mechanism programme wheel |
CH708216B1 (en) * | 2013-06-04 | 2017-12-29 | W Lea David | Annual or perpetual calendar mechanism for a timepiece. |
-
2017
- 2017-09-20 CH CH01156/17A patent/CH714178A1/en not_active Application Discontinuation
-
2018
- 2018-09-18 EP EP18195071.8A patent/EP3460588B1/en active Active
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EP3460588A1 (en) | 2019-03-27 |
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