EP1916575B1 - Annual calendar mechanism for timepiece - Google Patents

Annual calendar mechanism for timepiece Download PDF

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Publication number
EP1916575B1
EP1916575B1 EP06122850A EP06122850A EP1916575B1 EP 1916575 B1 EP1916575 B1 EP 1916575B1 EP 06122850 A EP06122850 A EP 06122850A EP 06122850 A EP06122850 A EP 06122850A EP 1916575 B1 EP1916575 B1 EP 1916575B1
Authority
EP
European Patent Office
Prior art keywords
date
ring
month
wheel set
teeth
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.)
Active
Application number
EP06122850A
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German (de)
French (fr)
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EP1916575A1 (en
Inventor
Loïc Pellaton
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ETA Manufacture Horlogere Suisse SA
Original Assignee
ETA Manufacture Horlogere Suisse SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority to AT06122850T priority Critical patent/ATE418093T1/en
Application filed by ETA Manufacture Horlogere Suisse SA filed Critical ETA Manufacture Horlogere Suisse SA
Priority to EP06122850A priority patent/EP1916575B1/en
Priority to DE602006004357T priority patent/DE602006004357D1/en
Priority to SG200717106-9A priority patent/SG142272A1/en
Priority to KR1020070105452A priority patent/KR20080036926A/en
Priority to JP2007273596A priority patent/JP5078542B2/en
Priority to CN2007101674374A priority patent/CN101169620B/en
Priority to US11/923,337 priority patent/US7535802B2/en
Publication of EP1916575A1 publication Critical patent/EP1916575A1/en
Priority to HK08111280.8A priority patent/HK1119466A1/en
Application granted granted Critical
Publication of EP1916575B1 publication Critical patent/EP1916575B1/en
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    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B1/00—Driving mechanisms
    • 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
    • G04B3/00—Normal winding of clockworks by hand or mechanically; Winding up several mainsprings or driving weights simultaneously

Definitions

  • the present invention relates to the field of watchmaking. It relates more specifically to an annual calendar mechanism for equipping a mechanical or electromechanical watch.
  • Such mechanisms are known to those skilled in the art. They make it possible to go from date 31 to date 1, the 31-day month, and from date 30 to date 1, months of less than 31 days. They conventionally comprise a date ring equipped with 31 teeth, operated once a day and in steps, by a date wheel. They are, in addition, generally provided with an additional mechanism for actuating said date ring a second time to the passage of the date 30 to 31, months of less than 31 days.
  • Such a date mechanism is disclosed in the application EP 1 666 991 . It comprises an annual mobile and a mobile reminder forming with the date ring and the date mobile, two kinematic chains originating from the date mobile.
  • the annual mobile consists of a wheel and a board with 5 pins corresponding to 5 months of less than 31 days.
  • the deflection wheel consists of a first wheel cooperating in two stages with a lug located on the date ring, and a second wheel cooperating with the wheel of the annual mobile.
  • the date wheel drives the date ring once a day with the aid of a first nose coming into contact with one of its 31 teeth.
  • the lug located on the date ring meshes with the moving wheel and drives it a first step.
  • the returning mobile then drives itself the annual mobile of a first step.
  • the current month is a month of 30 days
  • one of the five pins on the annual mobile board is in the path of a second beak of the date wheel.
  • This one causes the annual motive of a second step, which itself involves a second step the mobile of return.
  • the latter then drives the date ring by one step, via its lug.
  • the date goes from 31 to 1 and the lug is cleared.
  • no lug comes into contact with the second spout of the date wheel.
  • the date wheel performs a complete revolution before driving the date ring normally for the passage from the date 31 to the date 1.
  • the pin of the date ring causes a second step, the moving wheel, which drives himself the annual motive of a second step.
  • the spur is clear.
  • a month indicator disc is secured to the annual mobile. As the latter turns a first time at the passage of the 30th to 31st and a second time at the passage of the 31st to 31st, each month appears twice on the indicator disc of the months, and occupies an angular sector of a 24 th of a turn . The display of the month is, therefore, relatively small.
  • a disc indicating the months is secured to a star mounted free to rotate on the mobile months, and a third wheel is mounted integral with the return mobile. The star is actuated by the third wheel of the deflection wheel, only during the second step of the return wheel.
  • each month appears only once on the indicator disk of the months and occupies an angular sector of a 12 th of a turn. Therefore, the display is larger than in the previous embodiment.
  • this advantage is counterbalanced by the fact that the mechanism comprises additional parts to increase its thickness.
  • the date mechanism takes place, in a watch case, between the movement and the dial.
  • the thickness of the date mechanism is important compared to that of the movement, the winding stem and the crown are eccentric vertically on the side of the box, which is unsightly and inconvenient.
  • the present invention makes it possible to limit this disadvantage by proposing a date mechanism of the type described in the application. EP 1 666 991 but of reduced thickness.
  • the mechanism further comprises a month indicator ring having an inner flank provided with teeth cooperating with the deflecting wheel, the deflecting wheel being arranged to rotate the ring of months at least at the second pitch.
  • the thickness of the date mechanism according to the invention is reduced, at least, the thickness of the indicator disc of the months.
  • the date mechanism represented in figure 1 conventionally comprises a date ring 10 of axis AA, a date mobile 12 intended to drive the date ring 10, an annual mobile 14 coaxial with the date ring 10 and a return wheel 16, together forming two kinematic chains originating from the date mobile 12.
  • the assembly is mounted on the upper face of a plate 18, provided with a bridge 20.
  • the date ring 10 is positioned angularly by a not shown jumper, mounted on the bridge 20. It conventionally comprises an annular portion 22 bearing the inscriptions of the visible dates through a window 24 made in a dial 26. It further comprises a substantially cylindrical portion 28 provided with a lug 30 in an upper stage, and 31 teeth 32, corresponding to the 31 calendars, in a lower stage.
  • the annular portions 22 and cylindrical 28 are interconnected rigidly by a substantially annular intermediate portion 34 forming a recess with the annular portion 22. The function of the intermediate portion 34 will be better understood in the remainder of this presentation.
  • the date ring 10 is driven once a day and by a step, by the mobile date wheel 12.
  • the latter carries out a revolution in 24 hours, and draws the driving force acting on it from a kinematic chain driven by a movement belonging to a timepiece, the last link is formed by an hour wheel 36. It comprises a toothed wheel 38, one of whose teeth, longer than the others, forms a spout 40 cooperating with the teeth 32
  • the date mobile also includes an additional piece 42 equipped with a finger 44 cooperating with the annual mobile 14 so as to drag a step at the end of each month of less than 31 days.
  • the annual mobile 14 is formed of an annual wheel 46 to 24 teeth, integral with a circular board 48 having 5 pins 50 corresponding to the five months of less than 31 days.
  • the lugs 50 are distributed angularly around the board 48 so as to reflect the distribution of months of less than 31 days in the year.
  • the annual mobile 14 is driven by the date mobile 12, with the lugs 50, when one of them is in the path of the finger 44, as explained later.
  • the deflection wheel 16 is engaged with the annual wheel 46. Moreover, it is disposed in the path of the lug 30 so as to cooperate in two stages with it, at the passage of the dates 30 to 31 and then 31 to 1. It has alternating thick teeth and thin teeth, the latter being marked by a dot on the Figures 2 to 7 . It can be made of metal by machining, or plastic material, by injection, in order to reduce the cost. It should be noted that, as an alternative to the one-piece deflection wheel 16, it is possible to use a deflection wheel formed of a first wheel comprising an even number of teeth and a second wheel secured to the first wheel and comprising half fewer teeth.
  • the date mechanism also comprises, according to the invention, a month indicator ring 52, on which are affixed the names of the twelve months of the year visible through the window 24. Each month occupies, on the ring 52, a angular sector of a 12 th of a turn.
  • the ring 52 is, furthermore, provided on its inner side with 12 teeth 54 directed towards its center of symmetry, designed to cooperate with the return wheel 16. It is mounted coaxially with the date ring 10, which is free in rotation, and extends above the intermediate portion 34 of the date ring 10.
  • the arrangement of the ring 52 and the return wheel 16 is such that only the thick teeth can cooperate. with the teeth 54 of the indicator ring 52. The thin teeth pass under the teeth 54 without driving it.
  • the indicator ring of the months 52 is angularly positioned by a not shown jumper, mounted on the bridge 20. It will be noted, as is visible in FIG. figure 1 , since the indicator ring of the months 52 is disposed above the intermediate portion 34 of the date ring 10, substantially in the same plane as the annular portion 22, it does not come in extra thickness of the different mobiles. In addition, the star and the third wheel of the return mobile present in the application EP 04028561.1 are, thanks to this arrangement, suppressed. This results in a gain in thickness and considerable complexity.
  • the date mobile 12 forms with the date ring 10, the return wheel 16 and the annual mobile 14 a first kinematic chain I, starting from the date mobile 12 and ending in the annual mobile 14, via the ring of date 10 and the idler wheel 16, and a second kinematic chain It starting from the date mobile 12 and ending in the date ring 10 via the annual mobile 14 and the idler wheel 16.
  • the date mechanism described above is intended to equip a mechanical or electromechanical watch powered by a source of electrical energy. Its operation will be detailed with regard to Figures 2 to 4 then 5 to 7, illustrating the passage from date 30 to date 1 respectively for a month of less than 31 days, then for a month of 31 days.
  • the figure 2 illustrates the situation of the date mechanism according to the invention on April 30 at 23:55.
  • the date displayed is April 30th.
  • the spout 40 of the date mobile 12 comes into contact with a tooth 32a of the date ring 10 it is about to lead a step.
  • the lug 30 of the date ring 10 is located in the immediate vicinity of the return wheel 16, which it is about to lead a step.
  • a tooth 54a of the month indicator ring 52 is engaged with the idler wheel 16, so that the next active tooth of the idler wheel 16 is a thin tooth referenced a.
  • ⁇ , ⁇ , ⁇ and ⁇ refer to the following teeth of the idler wheel 16.
  • the mechanism of the situation May 1 at 1 h30 is illustrated by figure 3 .
  • the date ring 10 Under the action of the date mobile 12, the date ring 10 has turned one step.
  • the lug 30 of the date ring 10 has driven a first step the return wheel 16 which has itself driven a first step the annual mobile 14.
  • a lug 50a is now on the path of the finger 44, so that the annual mobile 14 is ready to be driven by a second step by the date mobile 12.
  • the idler wheel 16 has also not driven the month indicator ring 42, because the Thin tooth ⁇ is under tooth 54a.
  • the date displayed is therefore tentatively 31 April.
  • the tooth 54a is still engaged with the return wheel 16, but the next active tooth is a thick tooth referenced ⁇ . It will be noted that during this first phase of the change of date, it is the kinematic chain I which has been solicited.
  • FIG 4 illustrates the mechanism of the position on May 1 at 3:00.
  • the finger 44 has driven a second step the annual mobile 14, which itself has driven a second step the return wheel 16.
  • This has resulted in the date ring 10 via the lug 30, and the indicator ring of the months via the tooth 54a, using the thick tooth ⁇ .
  • the lug 30 is released, and the displayed date is 1 evil.
  • a tooth 54b is now engaged with the return wheel 16.
  • this second phase of the change of date it is the kinematic chain It which intervened.
  • the figure 5 illustrates the situation of the date mechanism on May 30 at 23:55.
  • the date displayed is May 30th.
  • the spout 40 of the date mobile 12 comes into contact with the tooth 32a of the date ring 10 it is about to lead a step.
  • the lug 30 of the date ring 10 is located in the immediate vicinity of the return wheel 16, which it is about to lead a step.
  • the tooth 54b of the month indicator ring 52 is engaged with the idler wheel 16, so that the next active tooth of the idler wheel 16 is a thin tooth referenced ⁇ . Note that the annual wheel positions 14, the intermediate wheel 16 and month indicator ring 52 are unchanged from May 1 to 3:00.
  • the situation of the mechanism on May 31 at 23:55 is illustrated by the figure 6 .
  • the date ring 10 Under the action of the date mobile 12, the date ring 10 has turned one step.
  • the lug 30 of the date ring 10 has driven a first step the return wheel 16.
  • the latter has not driven the month indicator ring 42, since the thin tooth ⁇ is passed under the tooth 54b
  • the date displayed is 31 May.
  • the tooth 54b is still engaged with the return wheel 16, but the next active tooth is a thick tooth referenced ⁇ .
  • the deflection wheel 16 has driven the annual moving wheel 14 at a first step, but no lug 50 has been in the path of the finger 44, so that the date wheel 12 has carried out a complete revolution. without causing a second step the annual mobile 14.
  • the spout 40 of the date mobile 12 now comes into contact with a tooth 32b of the date ring 10. It will be noted that during this first phase of the change of date, it is the kinematic chain I which has been solicited.
  • FIG 7 illustrates the situation of the date mechanism on June 1 st at 0h10.
  • the date ring 10 has turned one step.
  • the lug 30 of the date ring 10 has driven a second step the return wheel 16.
  • the latter has driven the month indicator ring 42 through the tooth 54b, using the thick tooth ⁇ .
  • the date displayed is June 1 st .
  • a tooth 54c is now engaged with the return wheel 16, and the next active tooth is a thin tooth referenced ⁇ .
  • the return wheel 16 has, moreover, resulted in a second step the annual mobile 14, but no lug 50 is in the path of the finger 44.
  • this second phase of the change of date it is the same kinematic chain I that intervened.
  • FIG 8 represents a variant of the date mechanism according to the invention.
  • the mechanism illustrated in figure 8 differs from the mechanism described above in that it comprises a return wheel 56 comprising only teeth of the same thickness, and in that the indicator ring months 52 comprises 24 teeth 54, each of the twelve months being affixed twice .
  • each of the teeth of the return wheel 56 cooperates with the 24 teeth 54 of the ring 52, at each step performed by the return wheel 56.
  • This embodiment simplifies the manufacture of the wheel 56, the alternation of thick teeth and thin teeth being complex and expensive compared to a single thickness of teeth.
  • the figure 9 illustrates the situation of this variant of the date mechanism according to the invention on April 30 at 23:55.
  • the date displayed is April 30th, the first registration of the month of April being visible through the window 24.
  • the general configuration of the mechanism is similar to the configuration illustrated in FIG. figure 2 , with the difference that a tooth 54a of the month indicator ring 52 is engaged with the return wheel 56, whose teeth are all of the same thickness.
  • FIG. 10 The mechanism of the position on May 1 at 1:30 is illustrated by figure 10 .
  • the kinematic chain I was solicited and the various mobiles turned a step.
  • the situation is similar to the situation illustrated in figure 3 , except that the tooth ⁇ has caused the indicator ring of the months 52 of a step.
  • the date displayed is April 31, but it is now the second entry of April which is visible through the window 24.
  • a tooth 54b is now engaged with the return wheel 56.
  • FIG 11 illustrates the mechanism of the position on May 1 at 3:00.
  • the driveline It intervened and the various mobiles turned again of a step.
  • the displayed date is May 1, and a tooth 54c is now meshed with intermediate wheel 56.
  • the figure 12 illustrates the situation of the date mechanism on May 30 at 23:55.
  • the date displayed is May 30th, the first registration of May being visible through the window 24.
  • the general configuration of the mechanism is similar to the configuration illustrated in figure 5 , with the difference that a tooth 54c of the month indicator ring 52 is engaged with the return wheel 56. It will be noted that the positions of the annual wheel 14, the idler wheel 56 and the indicator ring of the month 52 are unchanged since the 1st mal 3:00.
  • the situation of the mechanism on May 31 at 23:55 is illustrated by the figure 13 .
  • the kinematic chain I was solicited and the various mobiles turned a step.
  • the situation is similar to the situation illustrated in figure 6 except that the tooth ⁇ has caused the indicator ring of the months 52 of a step.
  • the date displayed is May 31, but it is now the second entry of May which is visible through the window 24.
  • a tooth 54d is now engaged with the return wheel 56.
  • FIG 14 illustrates the situation of the date mechanism on June 1 st at 0h10.
  • the displayed date is June 1, and a tooth 54e is now meshed with intermediate wheel 56.

Abstract

The mechanism has a date ring (10) with a lug (30) and teeth (32a, 32b), and a date wheel set (12) driving an intermediate wheel set (16) through a step when the date passes from the 30 to the 31 of the month. An annual wheel set (14) is meshed with the set (16). The date set drives the set (16) through another step when the date passes from the 31 to the 1st of the month for the months of 31 days. A month indicator ring (52) has an inner flank fitted with teeth cooperating with the intermediate set that rotates the month ring to the latter step.

Description

La présente invention se rapporte au domaine de l'horlogerie. Elle concerne plus précisément un mécanisme de quantième annuel destiné à équiper une montre mécanique ou électromécanique.The present invention relates to the field of watchmaking. It relates more specifically to an annual calendar mechanism for equipping a mechanical or electromechanical watch.

De tels mécanismes sont connus de l'homme de métier. Ils permettent de passer du quantième 31 au quantième 1, les mois de 31 jours, et du quantième 30 au quantième 1, les mois de moins de 31 jours. Ils comportent classiquement un anneau de quantième muni de 31 dents, actionné une fois par jour et par pas, par un mobile de quantième. Ils sont, en outre, généralement munis d'un mécanisme additionnel destiné à actionner ledit anneau de quantième une deuxième fois au passage du quantième 30 au quantième 31, les mois de moins de 31 jours.Such mechanisms are known to those skilled in the art. They make it possible to go from date 31 to date 1, the 31-day month, and from date 30 to date 1, months of less than 31 days. They conventionally comprise a date ring equipped with 31 teeth, operated once a day and in steps, by a date wheel. They are, in addition, generally provided with an additional mechanism for actuating said date ring a second time to the passage of the date 30 to 31, months of less than 31 days.

Un tel mécanisme de quantième est divulgué dans la demande EP 1 666 991 . Il comporte un mobile annuel et un mobile de renvoi formant avec la l'anneau de quantième et le mobile de quantième, deux chaînes cinématiques ayant pour origine le mobile de quantième. Le mobile annuel est formé d'une roue et d'une planche comprenant 5 ergots correspondants aux 5 mois de moins de 31 jours. Le mobile de renvoi est constitué d'une première roue coopérant en deux temps avec un ergot situé sur l'anneau de quantième, et d'une deuxième roue coopérant avec la roue du mobile annuel. La roue de quantième entraîne l'anneau de quantième une fois par jour à l'aide d'un premier bec venant au contact de l'une de ses 31 dents. Au passage du quantième 30 à 31, l'ergot situé sur l'anneau de quantième engrène avec le mobile de renvoi et l'entraîne d'un premier pas. Le mobile de renvoi entraîne alors lui-même le mobile annuel d'un premier pas. Lorsque le mois en cours est un mois de 30 jours, l'un des cinq ergots situé sur la planche du mobile annuel se présente sur la trajectoire d'un deuxième bec de la roue de quantième. Celui-ci entraîne le mobile annuel d'un deuxième pas, qui lui-même entraîne d'un deuxième pas le mobile de renvoi. Ce dernier entraîne alors d'un pas l'anneau de quantième, par l'intermédiaire de son ergot. Le quantième passe de 31 à 1 et l'ergot est dégagé. Lorsque le mois en cours est un mois de 31 jours, aucun ergot ne se présente au contact du deuxième bec de la roue de quantième. La roue de quantième effectue un tour complet avant d'entraîner l'anneau de quantième normalement pour le passage du quantième 31 au quantième 1. L'ergot de l'anneau de quantième entraîne d'un deuxième pas, le mobile de renvoi, qui entraîne lui-même le mobile annuel d'un deuxième pas. L'ergot est dégagé.Such a date mechanism is disclosed in the application EP 1 666 991 . It comprises an annual mobile and a mobile reminder forming with the date ring and the date mobile, two kinematic chains originating from the date mobile. The annual mobile consists of a wheel and a board with 5 pins corresponding to 5 months of less than 31 days. The deflection wheel consists of a first wheel cooperating in two stages with a lug located on the date ring, and a second wheel cooperating with the wheel of the annual mobile. The date wheel drives the date ring once a day with the aid of a first nose coming into contact with one of its 31 teeth. At the passage of the date 30 to 31, the lug located on the date ring meshes with the moving wheel and drives it a first step. The returning mobile then drives itself the annual mobile of a first step. When the current month is a month of 30 days, one of the five pins on the annual mobile board is in the path of a second beak of the date wheel. This one causes the annual motive of a second step, which itself involves a second step the mobile of return. The latter then drives the date ring by one step, via its lug. The date goes from 31 to 1 and the lug is cleared. When the current month is a month of 31 days, no lug comes into contact with the second spout of the date wheel. The date wheel performs a complete revolution before driving the date ring normally for the passage from the date 31 to the date 1. The pin of the date ring causes a second step, the moving wheel, which drives himself the annual motive of a second step. The spur is clear.

Le mécanisme ainsi décrit compte deux modes de réalisation. Dans une première variante, un disque indicateur des mois est solidaire du mobile annuel. Comme ce dernier tourne une première fois au passage du quantième 30 à 31 et une deuxième fois au passage du quantième 31 à 1, chaque mois apparaît deux fois sur le disque indicateur des mois, et occupe un secteur angulaire d'un 24ème de tour. L'affichage du mois est, par conséquent, relativement petit. Dans un deuxième mode de réalisation, un disque indicateur des mois est solidaire d'une étoile montée libre en rotation sur le mobile des mois, et une troisième roue est montée solidaire du mobile de renvoi. L'étoile est actionnée par la troisième roue du mobile de renvoi, uniquement lors du deuxième pas du mobile de renvoi. Dans ce mode de réalisation, chaque mois n'apparaît qu'une fois sur le disque indicateur des mois et occupe un secteur angulaire d'un 12ème de tour. Par conséquent, l'affichage est plus grand que dans le mode de réalisation précédent. Toutefois, cet avantage est contrebalancé par le fait que le mécanisme comprend des pièces supplémentaires venant augmenter son épaisseur.The mechanism thus described has two embodiments. In a first variant, a month indicator disc is secured to the annual mobile. As the latter turns a first time at the passage of the 30th to 31st and a second time at the passage of the 31st to 31st, each month appears twice on the indicator disc of the months, and occupies an angular sector of a 24 th of a turn . The display of the month is, therefore, relatively small. In a second embodiment, a disc indicating the months is secured to a star mounted free to rotate on the mobile months, and a third wheel is mounted integral with the return mobile. The star is actuated by the third wheel of the deflection wheel, only during the second step of the return wheel. In this embodiment, each month appears only once on the indicator disk of the months and occupies an angular sector of a 12 th of a turn. Therefore, the display is larger than in the previous embodiment. However, this advantage is counterbalanced by the fact that the mechanism comprises additional parts to increase its thickness.

Quel que soit le mode de réalisation choisi, on souhaite minimiser l'épaisseur d'un tel mécanisme de quantième. En effet, le mécanisme de quantième prend place, dans une boîte de montre, entre le mouvement et le cadran. Quand l'épaisseur du mécanisme de quantième est importante en regard de celle du mouvement, la tige de remontoir et la couronne se retrouvent décentrées verticalement sur le flanc de la boîte, ce qui est inesthétique et incommode.Whatever the embodiment chosen, it is desired to minimize the thickness of such a date mechanism. Indeed, the date mechanism takes place, in a watch case, between the movement and the dial. When the thickness of the date mechanism is important compared to that of the movement, the winding stem and the crown are eccentric vertically on the side of the box, which is unsightly and inconvenient.

La présente invention permet de limiter cet inconvénient, en proposant un mécanisme de quantième du type de celui décrit dans la demande EP 1 666 991 , mais d'épaisseur réduite.The present invention makes it possible to limit this disadvantage by proposing a date mechanism of the type described in the application. EP 1 666 991 but of reduced thickness.

Plus précisément, l'invention concerne un mécanisme de quantième annuel pour pièce d'horlogerie comprenant :

  • un anneau de quantième comportant un ergot et 31 dents, et un mobile de quantième agencé pour faire tourner l'anneau de quantième d'un pas une fois par jour,
  • un mobile de renvoi coopérant avec l'ergot de façon que le mobile de quantième entraîne d'un premier pas le mobile de renvoi, au passage du quantième 30 à 31, par l'intermédiaire de l'anneau de quantième,
  • un mobile annuel en prise avec le mobile de renvoi et coopérant avec le mobile de quantième,
les mobiles de quantième, de renvoi et annuel étant agencés pour que le mobile de quantième entraîne d'un deuxième pas le mobile de renvoi au passage du quantième 31 à 1 les mois de 31 jours, par l'intermédiaire de l'anneau de quantième, et pour que le mobile de quantième entraîne le mobile de renvoi d'un deuxième pas après le passage du quantième 30 à 31, les mois de moins de 31 jours, par l'intermédiaire du mobile annuel, le mobile de renvoi entraînant alors l'anneau de quantième.More specifically, the invention relates to an annual calendar mechanism for a timepiece comprising:
  • a date ring having a lug and 31 teeth, and a date mobile arranged to rotate the date ring one step once a day,
  • a return mobile cooperating with the lug so that the date mobile causes, at a first step, the deflection wheel, at the passage of the date 30 to 31, via the date ring,
  • an annual mobile in touch with the mobile referral and cooperating with the mobile date,
the date, return and year mobiles being arranged so that the date mobile causes a second step the mobile reference to the passage of the 31 to 31 month 31 days, through the date ring , and so that the date mobile causes the moving wheel of a second step after the passage of the date 30 to 31, the months of less than 31 days, by means of the annual mobile, the moving wheel then driving the date ring.

Selon l'invention, le mécanisme comporte encore un anneau indicateur des mois comportant un flanc intérieur muni de dents coopérant avec le mobile de renvoi, le mobile de renvoi étant agencé pour faire tourner l'anneau des mois au moins au deuxième pas.According to the invention, the mechanism further comprises a month indicator ring having an inner flank provided with teeth cooperating with the deflecting wheel, the deflecting wheel being arranged to rotate the ring of months at least at the second pitch.

Grâce à ces caractéristiques, l'épaisseur du mécanisme de quantième selon l'invention est réduite, au minimum, de l'épaisseur du disque indicateur des mois.Thanks to these characteristics, the thickness of the date mechanism according to the invention is reduced, at least, the thickness of the indicator disc of the months.

D'autres caractéristiques et avantages de la présente invention ressortiront plus clairement de la description détaillée qui suit d'un exemple de réalisation d'un mécanisme de quantième selon l'invention, cet exemple étant donné à titre purement illustratif et non limitatif seulement, en liaison avec le dessin annexé sur lequel :

  • les figures 1 et 8 sont des vues en coupe selon un axe XX d'un premier et d'un deuxième modes de réalisation du mécanisme de quantième selon l'invention,
  • les figures 2 à 7 et 9 à 14 sont des vues de dessus illustrant différentes étapes de fonctionnement dudit mécanisme selon respectivement un premier et un deuxième mode de réalisation.
Other characteristics and advantages of the present invention will emerge more clearly from the following detailed description of an example embodiment of a date mechanism according to the invention, this example being given for purely illustrative and nonlimiting purposes only, in connection with the appended drawing in which:
  • the figures 1 and 8 are views in section along an axis XX of a first and a second embodiment of the date mechanism according to the invention,
  • the Figures 2 to 7 and 9 to 14 are top views illustrating different stages of operation of said mechanism respectively according to a first and a second embodiment.

Le mécanisme de quantième représenté en figure 1, comporte classiquement un anneau de quantième 10 d'axe AA, un mobile de quantième 12 destiné à entraîner l'anneau de quantième 10, un mobile annuel 14 coaxial à l'anneau de quantième 10 et une roue de renvoi 16, formant ensemble deux chaînes cinématiques ayant pour origine le mobile de quantième 12. L'ensemble est monté sur la face supérieure d'une platine 18, munie d'un pont 20.The date mechanism represented in figure 1 , conventionally comprises a date ring 10 of axis AA, a date mobile 12 intended to drive the date ring 10, an annual mobile 14 coaxial with the date ring 10 and a return wheel 16, together forming two kinematic chains originating from the date mobile 12. The assembly is mounted on the upper face of a plate 18, provided with a bridge 20.

L'anneau de quantième 10 est positionné angulairement par un sautoir non représenté, monté sur le pont 20. Il comprend classiquement une portion annulaire 22 portant les inscriptions des quantièmes visibles à travers un guichet 24 pratiqué dans un cadran 26. Il comprend en outre, une portion sensiblement cylindrique 28 munie d'un ergot 30 dans un étage supérieur, et de 31 dents 32, correspondant aux 31 quantièmes, dans un étage inférieur. Les portions annulaire 22 et cylindrique 28 sont reliées entre elles rigidement par une portion intermédiaire 34 sensiblement annulaire formant un décrochement avec la portion annulaire 22. La fonction de la portion intermédiaire 34 sera mieux comprise dans la suite de cet exposé.The date ring 10 is positioned angularly by a not shown jumper, mounted on the bridge 20. It conventionally comprises an annular portion 22 bearing the inscriptions of the visible dates through a window 24 made in a dial 26. It further comprises a substantially cylindrical portion 28 provided with a lug 30 in an upper stage, and 31 teeth 32, corresponding to the 31 calendars, in a lower stage. The annular portions 22 and cylindrical 28 are interconnected rigidly by a substantially annular intermediate portion 34 forming a recess with the annular portion 22. The function of the intermediate portion 34 will be better understood in the remainder of this presentation.

L'anneau de quantième 10 est entraîné une fois par jour et d'un pas, par le mobile de quantième 12. Ce dernier effectue un tour en 24 heures, et tire la force motrice agissant sur lui d'une chaîne cinématique entraînée par un mouvement appartenant à une pièce d'horlogerie, dont le dernier maillon est formé par une roue des heures 36. Il comprend une roue dentée 38, dont l'une des dents, plus longue que les autres, forme un bec 40 coopérant avec les dents 32. Le mobile de quantième comporte encore une pièce additionnelle 42 dotée d'un doigt 44 coopérant avec le mobile annuel 14 de façon à l'entraîner d'un pas à la fin de chaque mois comportant moins de 31 jours.The date ring 10 is driven once a day and by a step, by the mobile date wheel 12. The latter carries out a revolution in 24 hours, and draws the driving force acting on it from a kinematic chain driven by a movement belonging to a timepiece, the last link is formed by an hour wheel 36. It comprises a toothed wheel 38, one of whose teeth, longer than the others, forms a spout 40 cooperating with the teeth 32 The date mobile also includes an additional piece 42 equipped with a finger 44 cooperating with the annual mobile 14 so as to drag a step at the end of each month of less than 31 days.

Le mobile annuel 14 est formé d'une roue annuelle 46 à 24 dents, solidaire d'une planche circulaire 48 comportant 5 ergots 50 correspondants aux cinq mois de moins de 31 jours. Les ergots 50 sont répartis angulairement autour de la planche 48 de manière à refléter la répartition des mois de moins de 31 jours dans l'année. Le mobile annuel 14 est entraîné par le mobile de quantième 12, à l'aide des ergots 50, lorsque l'un d'entre eux se trouve sur le trajet du doigt 44, comme explicité par la suite.The annual mobile 14 is formed of an annual wheel 46 to 24 teeth, integral with a circular board 48 having 5 pins 50 corresponding to the five months of less than 31 days. The lugs 50 are distributed angularly around the board 48 so as to reflect the distribution of months of less than 31 days in the year. The annual mobile 14 is driven by the date mobile 12, with the lugs 50, when one of them is in the path of the finger 44, as explained later.

La roue de renvoi 16 est en prise avec la roue annuelle 46. De plus elle est disposée sur le trajet de l'ergot 30 de manière à coopérer en deux temps avec lui, au passage des quantièmes 30 à 31 puis 31 à 1. Elle comporte une alternance de dents épaisses et de dents minces, ces dernières étant repérées par un point sur les figures 2 à 7. Elle peut être fabriquée en métal par usinage, ou en matériau plastique, par injection, afin d'en diminuer le coût. On notera qu'en alternative à la roue de renvoi monobloc 16, on peut utiliser un mobile de renvoi formé d'une première roue comportant un nombre pair de dents et d'une deuxième roue solidaire de la première et comportant moitié moins de dents.The deflection wheel 16 is engaged with the annual wheel 46. Moreover, it is disposed in the path of the lug 30 so as to cooperate in two stages with it, at the passage of the dates 30 to 31 and then 31 to 1. It has alternating thick teeth and thin teeth, the latter being marked by a dot on the Figures 2 to 7 . It can be made of metal by machining, or plastic material, by injection, in order to reduce the cost. It should be noted that, as an alternative to the one-piece deflection wheel 16, it is possible to use a deflection wheel formed of a first wheel comprising an even number of teeth and a second wheel secured to the first wheel and comprising half fewer teeth.

Le mécanisme de quantième comporte encore, selon l'invention, un anneau indicateur des mois 52, sur lequel sont apposés les noms des douze mois de l'année visibles au travers du guichet 24. Chaque mois occupe, sur l'anneau 52, un secteur angulaire d'un 12ème de tour. L'anneau 52 est, en outre, muni, sur son flanc intérieur, de 12 dents 54 dirigées vers son centre de symétrie, destinées à coopérer avec la roue de renvoi 16. Il est monté coaxialement à l'anneau de quantième 10, libre en rotation, et s'étend au dessus de la portion intermédiaire 34 de l'anneau de quantième 10. De plus, l'agencement de l'anneau 52 et de la roue de renvoi 16 est tel, que seules les dents épaisses peuvent coopérer avec les dents 54 de l'anneau indicateur 52. Les dents minces passent sous les dents 54 sans l'entraîner. Comme l'anneau de quantième 10, l'anneau indicateur des mois 52 est positionné angulairement par un sautoir non représenté, monté sur le pont 20. On notera, comme il est visible en figure 1, que l'anneau indicateur des mois 52 étant disposé au dessus de la portion intermédiaire 34 de l'anneau de quantième 10, sensiblement dans un même plan que la portion annulaire 22, il ne vient pas en surépaisseur des différents mobiles. De plus, l'étoile et la troisième roue du mobile de renvoi présentes dans la demande EP 04028561.1 sont, grâce à cet agencement, supprimées. Il en résulte un gain en épaisseur et en complexité considérable.The date mechanism also comprises, according to the invention, a month indicator ring 52, on which are affixed the names of the twelve months of the year visible through the window 24. Each month occupies, on the ring 52, a angular sector of a 12 th of a turn. The ring 52 is, furthermore, provided on its inner side with 12 teeth 54 directed towards its center of symmetry, designed to cooperate with the return wheel 16. It is mounted coaxially with the date ring 10, which is free in rotation, and extends above the intermediate portion 34 of the date ring 10. In addition, the arrangement of the ring 52 and the return wheel 16 is such that only the thick teeth can cooperate. with the teeth 54 of the indicator ring 52. The thin teeth pass under the teeth 54 without driving it. Like the date ring 10, the indicator ring of the months 52 is angularly positioned by a not shown jumper, mounted on the bridge 20. It will be noted, as is visible in FIG. figure 1 , since the indicator ring of the months 52 is disposed above the intermediate portion 34 of the date ring 10, substantially in the same plane as the annular portion 22, it does not come in extra thickness of the different mobiles. In addition, the star and the third wheel of the return mobile present in the application EP 04028561.1 are, thanks to this arrangement, suppressed. This results in a gain in thickness and considerable complexity.

On notera que le mobile de quantième 12 forme avec l'anneau de quantième 10, la roue de renvoi 16 et le mobile annuel 14 une première chaîne cinématique I, partant du mobile de quantième 12 et aboutissant au mobile annuel 14, via l'anneau de quantième 10 et la roue de renvoi 16, et une deuxième chaîne cinématique Il partant du mobile de quantième 12 et aboutissant à l'anneau de quantième 10 via le mobile annuel 14 et la roue de renvoi 16.Note that the date mobile 12 forms with the date ring 10, the return wheel 16 and the annual mobile 14 a first kinematic chain I, starting from the date mobile 12 and ending in the annual mobile 14, via the ring of date 10 and the idler wheel 16, and a second kinematic chain It starting from the date mobile 12 and ending in the date ring 10 via the annual mobile 14 and the idler wheel 16.

Le mécanisme de quantième décrit précédemment est destiné à équiper une montre mécanique ou électromécanique alimentée par une source d'énergie électrique. Son fonctionnement va être détaillé en regard des figures 2 à 4 puis 5 à 7, illustrant le passage du quantième 30 au quantième 1 respectivement pour un mois de moins de 31 jours, puis pour un mois de 31 jours.The date mechanism described above is intended to equip a mechanical or electromechanical watch powered by a source of electrical energy. Its operation will be detailed with regard to Figures 2 to 4 then 5 to 7, illustrating the passage from date 30 to date 1 respectively for a month of less than 31 days, then for a month of 31 days.

La figure 2 illustre la situation du mécanisme de quantième selon l'invention un 30 avril à 23h55. La date affichée est le 30 avril. Le bec 40 du mobile de quantième 12 vient au contact d'une dent 32a de l'anneau de quantième 10 qu'il s'apprête à entraîner d'un pas. L'ergot 30 de l'anneau de quantième 10 est situé au voisinage immédiat de la roue de renvoi 16, qu'il s'apprête à entraîner d'un pas. Une dent 54a de l'anneau indicateur des mois 52 est en prise avec la roue de renvoi 16, de sorte que la prochaine dent active de la roue de renvoi 16, est une dent mince référencée a. On a référencé β, γ, δ et ε les dents suivantes de la roue de renvoi 16.The figure 2 illustrates the situation of the date mechanism according to the invention on April 30 at 23:55. The date displayed is April 30th. The spout 40 of the date mobile 12 comes into contact with a tooth 32a of the date ring 10 it is about to lead a step. The lug 30 of the date ring 10 is located in the immediate vicinity of the return wheel 16, which it is about to lead a step. A tooth 54a of the month indicator ring 52 is engaged with the idler wheel 16, so that the next active tooth of the idler wheel 16 is a thin tooth referenced a. Β, γ, δ and ε refer to the following teeth of the idler wheel 16.

La situation du mécanisme le 1er mai à 1 h30 est illustrée par la figure 3. Sous l'action du mobile de quantième 12, l'anneau de quantième 10 a tourné d'un pas. L'ergot 30 de l'anneau de quantième 10 a entraîné d'un premier pas la roue de renvoi 16 qui a elle-même entraîné d'un premier pas le mobile annuel 14. Un ergot 50a se situe maintenant sur la trajectoire du doigt 44, de sorte que le mobile annuel 14 est prêt à être entraîné d'un deuxième pas par le mobile de quantième 12. La roue de renvoi 16 n'a, par ailleurs, pas entraîné l'anneau indicateur de mois 42, car la dent mince α est passée sous la dent 54a. La date affichée est donc provisoirement le 31 avril. La dent 54a est toujours en prise avec la roue de renvoi 16, mais la prochaine dent active est une dent épaisse référencée β. On notera que lors de cette première phase du changement de date, c'est la chaîne cinématique I qui a été sollicitée.The mechanism of the situation May 1 at 1 h30 is illustrated by figure 3 . Under the action of the date mobile 12, the date ring 10 has turned one step. The lug 30 of the date ring 10 has driven a first step the return wheel 16 which has itself driven a first step the annual mobile 14. A lug 50a is now on the path of the finger 44, so that the annual mobile 14 is ready to be driven by a second step by the date mobile 12. The idler wheel 16 has also not driven the month indicator ring 42, because the Thin tooth α is under tooth 54a. The date displayed is therefore tentatively 31 April. The tooth 54a is still engaged with the return wheel 16, but the next active tooth is a thick tooth referenced β. It will be noted that during this first phase of the change of date, it is the kinematic chain I which has been solicited.

On se réfère maintenant à la figure 4 qui illustre la situation du mécanisme le 1er mai à 3h00. Le doigt 44 a entraîné d'un deuxième pas le mobile annuel 14, qui lui-même a entraîné d'un deuxième pas la roue de renvoi 16. Celle-ci a entraîné l'anneau de quantième 10 par l'intermédiaire de l'ergot 30, et l'anneau indicateur des mois par l'intermédiaire de la dent 54a, à l'aide de la dent épaisse β. L'ergot 30 est libéré, et la date affichée est le 1er mal. Une dent 54b est maintenant en prise avec la roue de renvoi 16. Lors de cette deuxième phase du changement de date, c'est la chaîne cinématique Il qui est intervenue.We now refer to the figure 4 which illustrates the mechanism of the position on May 1 at 3:00. The finger 44 has driven a second step the annual mobile 14, which itself has driven a second step the return wheel 16. This has resulted in the date ring 10 via the lug 30, and the indicator ring of the months via the tooth 54a, using the thick tooth β. The lug 30 is released, and the displayed date is 1 evil. A tooth 54b is now engaged with the return wheel 16. During this second phase of the change of date, it is the kinematic chain It which intervened.

La figure 5 illustre la situation du mécanisme de quantième le 30 mai à 23h55. La date affichée est le 30 mai. Le bec 40 du mobile de quantième 12 vient au contact de la dent 32a de l'anneau de quantième 10 qu'il s'apprête à entraîner d'un pas. L'ergot 30 de l'anneau de quantième 10 est situé au voisinage immédiat de la roue de renvoi 16, qu'il s'apprête à entraîner d'un pas. La dent 54b de l'anneau indicateur des mois 52 est en prise avec la roue de renvoi 16, de sorte que la prochaine dent active de la roue de renvoi 16, est une dent mince référencée γ. On notera que les positions du mobile annuel 14, de la roue de renvoi 16 et de l'anneau indicateur des mois 52 sont inchangées depuis le 1er mai à 3h00.The figure 5 illustrates the situation of the date mechanism on May 30 at 23:55. The date displayed is May 30th. The spout 40 of the date mobile 12 comes into contact with the tooth 32a of the date ring 10 it is about to lead a step. The lug 30 of the date ring 10 is located in the immediate vicinity of the return wheel 16, which it is about to lead a step. The tooth 54b of the month indicator ring 52 is engaged with the idler wheel 16, so that the next active tooth of the idler wheel 16 is a thin tooth referenced γ. Note that the annual wheel positions 14, the intermediate wheel 16 and month indicator ring 52 are unchanged from May 1 to 3:00.

La situation du mécanisme le 31 mai à 23h55 est illustrée par la figure 6. Sous l'action du mobile de quantième 12, l'anneau de quantième 10 a tourné d'un pas. L'ergot 30 de l'anneau de quantième 10 a entraîné d'un premier pas la roue de renvoi 16. Cette dernière n'a pas entraîné l'anneau indicateur de mois 42, car la dent mince γ est passée sous la dent 54b en prise avec la roue de renvoi 16. La date affichée est donc le 31 mai. La dent 54b est toujours en prise avec la roue de renvoi 16, mais la prochaine dent active est une dent épaisse référencée δ. La roue de renvoi 16 a, par contre, entraîné d'un premier pas le mobile annuel 14, mais aucun ergot 50 ne s'est trouvé sur le trajet du doigt 44, de sorte que le mobile de quantième 12 a effectué un tour complet sans entraîner d'un deuxième pas le mobile annuel 14. Le bec 40 du mobile de quantième 12 vient maintenant au contact d'une dent 32b de l'anneau de quantième 10. On notera que lors de cette première phase du changement de date, c'est la chaîne cinématique I qui a été sollicitée.The situation of the mechanism on May 31 at 23:55 is illustrated by the figure 6 . Under the action of the date mobile 12, the date ring 10 has turned one step. The lug 30 of the date ring 10 has driven a first step the return wheel 16. The latter has not driven the month indicator ring 42, since the thin tooth γ is passed under the tooth 54b The date displayed is 31 May. The tooth 54b is still engaged with the return wheel 16, but the next active tooth is a thick tooth referenced δ. On the other hand, the deflection wheel 16 has driven the annual moving wheel 14 at a first step, but no lug 50 has been in the path of the finger 44, so that the date wheel 12 has carried out a complete revolution. without causing a second step the annual mobile 14. The spout 40 of the date mobile 12 now comes into contact with a tooth 32b of the date ring 10. It will be noted that during this first phase of the change of date, it is the kinematic chain I which has been solicited.

On se réfère maintenant à la figure 7 qui illustre la situation du mécanisme de quantième le 1er juin à 0h10. Sous l'action du mobile de quantième 12, l'anneau de quantième 10 a tourné d'un pas. L'ergot 30 de l'anneau de quantième 10 a entraîné d'un deuxième pas la roue de renvoi 16. Cette dernière a entraîné l'anneau indicateur de mois 42 par l'intermédiaire de la dent 54b, à l'aide de la dent épaisse δ. La date affichée est donc le 1er juin. Une dent 54c est maintenant en prise avec la roue de renvoi 16, et la prochaine dent active est une dent mince référencée ε. La roue de renvoi 16 a, par ailleurs, entraîné d'un deuxième pas le mobile annuel 14, mais aucun ergot 50 ne se trouve sur le trajet du doigt 44. Lors de cette deuxième phase du changement de date, c'est la même chaîne cinématique I qui est intervenue.We now refer to the figure 7 which illustrates the situation of the date mechanism on June 1 st at 0h10. Under the action of the date mobile 12, the date ring 10 has turned one step. The lug 30 of the date ring 10 has driven a second step the return wheel 16. The latter has driven the month indicator ring 42 through the tooth 54b, using the thick tooth δ. The date displayed is June 1 st . A tooth 54c is now engaged with the return wheel 16, and the next active tooth is a thin tooth referenced ε. The return wheel 16 has, moreover, resulted in a second step the annual mobile 14, but no lug 50 is in the path of the finger 44. During this second phase of the change of date, it is the same kinematic chain I that intervened.

On se réfère maintenant à la figure 8 qui représente une variante du mécanisme de quantième selon l'invention. Le mécanisme illustré en figure 8 se distingue du mécanisme décrit précédemment en ce qu'il comporte une roue de renvoi 56 ne comprenant que des dents de même épaisseur, et en ce que l'anneau indicateur des mois 52 comprend 24 dents 54, chacun des douze mois étant apposé deux fois. Dans ce mode de réalisation, chacune des dents de la roue de renvoi 56 coopère avec les 24 dents 54 de l'anneau 52, à chaque pas effectué par la roue de renvoi 56. Ce mode de réalisation permet de simplifier la fabrication de la roue de renvoi 56, l'alternance de dents épaisses et de dents minces étant complexe et coûteuse par rapport à une épaisseur unique de dents.We now refer to the figure 8 which represents a variant of the date mechanism according to the invention. The mechanism illustrated in figure 8 differs from the mechanism described above in that it comprises a return wheel 56 comprising only teeth of the same thickness, and in that the indicator ring months 52 comprises 24 teeth 54, each of the twelve months being affixed twice . In this embodiment, each of the teeth of the return wheel 56 cooperates with the 24 teeth 54 of the ring 52, at each step performed by the return wheel 56. This embodiment simplifies the manufacture of the wheel 56, the alternation of thick teeth and thin teeth being complex and expensive compared to a single thickness of teeth.

Le fonctionnement de cette variante du mécanisme de quantième, illustré par les figures 9 à 14, diffère du fonctionnement du mécanisme précédent, en ce que la roue de renvoi 56 entraîne l'anneau indicateur des mois 52 à chaque pas.The operation of this variant of the date mechanism, illustrated by the Figures 9 to 14 , differs from the operation of the previous mechanism, in that the return wheel 56 drives the indicator ring months 52 at each step.

La figure 9 illustre la situation de cette variante du mécanisme de quantième selon l'invention un 30 avril à 23h55. La date affichée est le 30 avril, la première inscription du mois d'avril étant visible à travers le guichet 24. La configuration générale du mécanisme est similaire à la configuration illustrée en figure 2, à la différence qu'une dent 54a de l'anneau indicateur des mois 52 est en prise avec la roue de renvoi 56, dont les dents sont toutes de même épaisseur.The figure 9 illustrates the situation of this variant of the date mechanism according to the invention on April 30 at 23:55. The date displayed is April 30th, the first registration of the month of April being visible through the window 24. The general configuration of the mechanism is similar to the configuration illustrated in FIG. figure 2 , with the difference that a tooth 54a of the month indicator ring 52 is engaged with the return wheel 56, whose teeth are all of the same thickness.

La situation du mécanisme le 1er mai à 1h30 est illustrée par la figure 10. La chaîne cinématique I a été sollicitée et les différents mobiles ont tourné d'un pas. La situation est similaire à la situation illustrée en figure 3, excepté que la dent α a entraîné l'anneau indicateur des mois 52 d'un pas. La date affichée est le 31 avril, mais c'est maintenant la deuxième inscription du mois d'avril qui est visible à travers le guichet 24. Une dent 54b est maintenant en prise avec la roue de renvoi 56.The mechanism of the position on May 1 at 1:30 is illustrated by figure 10 . The kinematic chain I was solicited and the various mobiles turned a step. The situation is similar to the situation illustrated in figure 3 , except that the tooth α has caused the indicator ring of the months 52 of a step. The date displayed is April 31, but it is now the second entry of April which is visible through the window 24. A tooth 54b is now engaged with the return wheel 56.

On se réfère maintenant à la figure 11 qui illustre la situation du mécanisme le 1er mai à 3h00. La chaîne cinématique Il est intervenue et les différents mobiles ont tourné à nouveau d'un pas. La date affichée est le 1er mai, et une dent 54c est maintenant en prise avec la roue de renvoi 56.We now refer to the figure 11 which illustrates the mechanism of the position on May 1 at 3:00. The driveline It intervened and the various mobiles turned again of a step. The displayed date is May 1, and a tooth 54c is now meshed with intermediate wheel 56.

La figure 12 illustre la situation du mécanisme de quantième le 30 mai à 23h55. La date affichée est le 30 mai, la première inscription du mois de mai étant visible à travers le guichet 24. La configuration générale du mécanisme est similaire à la configuration illustrée en figure 5, à la différence qu'une dent 54c de l'anneau indicateur des mois 52 est en prise avec la roue de renvoi 56.On notera que les positions du mobile annuel 14, de la roue de renvoi 56 et de l'anneau indicateur des mois 52 sont inchangées depuis le 1er mal à 3h00.The figure 12 illustrates the situation of the date mechanism on May 30 at 23:55. The date displayed is May 30th, the first registration of May being visible through the window 24. The general configuration of the mechanism is similar to the configuration illustrated in figure 5 , with the difference that a tooth 54c of the month indicator ring 52 is engaged with the return wheel 56. It will be noted that the positions of the annual wheel 14, the idler wheel 56 and the indicator ring of the month 52 are unchanged since the 1st mal 3:00.

La situation du mécanisme le 31 mai à 23h55 est illustrée par la figure 13. La chaîne cinématique I a été sollicitée et les différents mobiles ont tourné d'un pas. La situation est similaire à la situation illustrée en figure 6, excepté que la dent γ a entraîné l'anneau indicateur des mois 52 d'un pas. La date affichée est le 31 mai, mais c'est maintenant la deuxième inscription du mois de mai qui est visible à travers le guichet 24. Une dent 54d est maintenant en prise avec la roue de renvoi 56.The situation of the mechanism on May 31 at 23:55 is illustrated by the figure 13 . The kinematic chain I was solicited and the various mobiles turned a step. The situation is similar to the situation illustrated in figure 6 except that the tooth γ has caused the indicator ring of the months 52 of a step. The date displayed is May 31, but it is now the second entry of May which is visible through the window 24. A tooth 54d is now engaged with the return wheel 56.

On se réfère maintenant à la figure 14 qui illustre la situation du mécanisme de quantième le 1er juin à 0h10. La chaîne cinématique I est intervenue une deuxième fois et les différents mobiles ont tourné à nouveau d'un pas. La date affichée est le 1er juin, et une dent 54e est maintenant en prise avec la roue de renvoi 56.We now refer to the figure 14 which illustrates the situation of the date mechanism on June 1 st at 0h10. The driveline I intervened a second time and the various mobiles turned again a step. The displayed date is June 1, and a tooth 54e is now meshed with intermediate wheel 56.

Ainsi a été présenté un mécanisme de quantième annuel dont l'encombrement et la complexité sont réduits par rapport à l'art antérieur.Thus has been presented an annual calendar mechanism whose size and complexity are reduced compared to the prior art.

Il va de soi que la présente invention n'est pas limitée aux modes de réalisations qui viennent d'être décrits, et que diverses modifications et variantes simples peuvent être envisagées par l'homme de métier, sans sortir du cadre de la présente invention telle que définie par les revendications annexées. On notera, en particulier, que les mécanismes selon l'invention sont décrits à des heures précises. Ces heures sont données à titre indicatif et ne sauraient limiter la portée de la protection.It goes without saying that the present invention is not limited to the embodiments which have just been described, and that various simple modifications and variants can be envisaged by those skilled in the art, without departing from the scope of the present invention such as as defined by the appended claims. It will be noted, in particular, that the mechanisms according to the invention are described at specific times. These times are given as an indication and can not limit the scope of protection.

Claims (7)

  1. Annual calendar mechanism for a timepiece, including:
    - a date ring (10) including a lug (30) and 31 teeth (32), and a date wheel set (12) arranged for rotating said date ring (10) through one step per day,
    - an intermediate wheel set (16, 56) cooperating with said lug (30) such that said date wheel set (12) drives the intermediate wheel set (16, 56) through a first step when the date passes from the 30th to the 31st of the month, via said date ring (10).
    - an annual wheel set (14) meshed with the intermediate wheel set (16, 56) and cooperating with the date wheel set (12),
    said date (12), intermediate (16, 56) and annual (14) wheel sets being arranged such that said date wheel set (12) drives said intermediate wheel set (16, 56) through a second step when the date passes from the 31st to the 1st of the month, for the months of 31 days, via said date ring (10), and such that said date wheel set (12) drives said intermediate wheel set (16, 56) through a second step after the date has passed from the 30th to the 31st of the month, for the months of less than 31 days, via the annual wheel set (14), the intermediate wheel set (16, 56) then driving the date wheel ring (10),
    said mechanism being characterized in that it further includes a month indicator ring (52) including an inner flank fitted with teeth (54) cooperating with said intermediate wheel set (16, 56), said intermediate wheel set (16, 56) being arranged for rotating the month ring (52) at least to said second step.
  2. Mechanism according to claim 1, characterized in that said date ring (10) includes an annular portion (22) bearing the markings of the days of the month, and in that said month indicator ring (52) is arranged in substantially the same plane as said annular portion (22).
  3. Mechanism according to claim 2, characterized in that said date ring (10) further includes a substantially annular intermediate portion (34) forming a step with said annular portion (22) and in that said month indicator ring (52) extends above said intermediate portion (34).
  4. Mechanism according to any of claims 1 to 3, characterized in that said intermediate wheel set (16, 56) is formed of a wheel including alternating thick teeth and thin teeth and is arranged such that only the thick teeth cooperate with the teeth (54) of said month indicator ring (52).
  5. Mechanism according to claim 4, characterized in that said month indicator ring (52) includes 12 teeth and in that each month is affixed only once.
  6. Mechanism according to any of claims 1 to 3, characterized in that said intermediate wheel set (16, 56) is formed of a wheel (56) whose teeth are all of the same thickness.
  7. Mechanism according to claim 6, characterized in that said month indictor ring (52) includes 24 teeth and in that each month is affixed twice.
EP06122850A 2006-10-24 2006-10-24 Annual calendar mechanism for timepiece Active EP1916575B1 (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
EP06122850A EP1916575B1 (en) 2006-10-24 2006-10-24 Annual calendar mechanism for timepiece
DE602006004357T DE602006004357D1 (en) 2006-10-24 2006-10-24 Year calendar mechanism for clockwork
AT06122850T ATE418093T1 (en) 2006-10-24 2006-10-24 ANNUAL CALENDAR MECHANISM FOR CLOCK MOVEMENT
KR1020070105452A KR20080036926A (en) 2006-10-24 2007-10-19 Annual calendar mechanism for a timepiece
SG200717106-9A SG142272A1 (en) 2006-10-24 2007-10-19 Annual calendar mechanism for a timepiece
JP2007273596A JP5078542B2 (en) 2006-10-24 2007-10-22 Annual calendar mechanism for watches
CN2007101674374A CN101169620B (en) 2006-10-24 2007-10-24 Annual calendar mechanism for timepiece
US11/923,337 US7535802B2 (en) 2006-10-24 2007-10-24 Annual calendar mechanism for a timepiece
HK08111280.8A HK1119466A1 (en) 2006-10-24 2008-10-13 Annual calendar mechanism for a timepiece

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP06122850A EP1916575B1 (en) 2006-10-24 2006-10-24 Annual calendar mechanism for timepiece

Publications (2)

Publication Number Publication Date
EP1916575A1 EP1916575A1 (en) 2008-04-30
EP1916575B1 true EP1916575B1 (en) 2008-12-17

Family

ID=38179654

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06122850A Active EP1916575B1 (en) 2006-10-24 2006-10-24 Annual calendar mechanism for timepiece

Country Status (9)

Country Link
US (1) US7535802B2 (en)
EP (1) EP1916575B1 (en)
JP (1) JP5078542B2 (en)
KR (1) KR20080036926A (en)
CN (1) CN101169620B (en)
AT (1) ATE418093T1 (en)
DE (1) DE602006004357D1 (en)
HK (1) HK1119466A1 (en)
SG (1) SG142272A1 (en)

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Publication number Priority date Publication date Assignee Title
JP5181133B2 (en) * 2008-11-28 2013-04-10 セイコーインスツル株式会社 A clock with a calendar mechanism equipped with a month wheel and a date wheel
JP4952778B2 (en) * 2009-12-08 2012-06-13 カシオ計算機株式会社 Date display device
EP2515186B1 (en) * 2011-04-20 2014-06-11 Cartier Création Studio S.A. Räderwerk für Uhr
JP6091942B2 (en) * 2012-08-01 2017-03-08 セイコーインスツル株式会社 CALENDAR MECHANISM, MOVEMENT AND CALENDAR WATCH HAVING THE MECHANISM
EP2843483A1 (en) * 2013-08-27 2015-03-04 Manufacture et fabrique de montres et chronomètres Ulysse Nardin Le Locle SA Date mechanism
EP3173878B1 (en) * 2015-11-26 2021-05-26 Rolex Sa Timepiece calendar system
EP3173876B1 (en) 2015-11-26 2020-09-02 Rolex Sa Timepiece calendar system
EP3173877B1 (en) 2015-11-26 2019-10-16 Rolex Sa Timepiece calendar system
EP3327516B1 (en) * 2016-10-27 2019-11-27 Blancpain SA Mechanism for displaying a temporal or seasonal period
CN108227454B (en) * 2016-12-22 2023-05-26 天津海鸥表业集团有限公司 Double-layer calendar mechanism of clock
EP3499317A1 (en) * 2017-12-13 2019-06-19 Rolex Sa Timepiece calendar mobile
EP3696617B1 (en) * 2019-02-14 2023-07-05 Glashütter Uhrenbetrieb GmbH Mechanism for displaying month and leap year for a timepiece
EP3800513B1 (en) * 2019-10-04 2023-08-09 ETA SA Manufacture Horlogère Suisse Timepiece including a means for indicating am-pm
FR3104748B1 (en) 2019-12-12 2022-01-21 Laurent Mazounie Simplified annual calendar
EP3926417A1 (en) * 2020-06-18 2021-12-22 ETA SA Manufacture Horlogère Suisse Watch with annual calendar setting and related method

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CH538137A (en) * 1971-04-07 1972-12-29 Kocher Aeschbacher Hans Date watch
JPS5137265A (en) * 1974-09-25 1976-03-29 Citizen Watch Co Ltd
US4228644A (en) * 1977-11-16 1980-10-21 Citizen Watch Co., Ltd. Display device for calendar timepieces
JPS6047991B2 (en) * 1977-11-24 1985-10-24 シチズン時計株式会社 calendar clock
CH684815B5 (en) * 1993-07-15 1995-07-14 Longines Montres Comp D Mechanism annual calendar timepiece.
CH688706B5 (en) * 1995-07-28 1998-07-31 Longines Montres Comp D Annual calendar mechanism for a timepiece.
US6108278A (en) * 1998-09-11 2000-08-22 Frederic Piguet S.A. Annual calendar mechanism for clockwork movement
EP1251412A1 (en) * 2001-04-18 2002-10-23 Progress Watch AG Calendar mechanism
EP1471396A1 (en) * 2003-04-25 2004-10-27 Frédéric Crettex Date indicating mechanism for timepiece
EP1596261B1 (en) * 2004-05-14 2007-08-01 Rolex S.A. Annual calendar for a watch movement
EP1666991B1 (en) * 2004-12-02 2011-06-01 ETA SA Manufacture Horlogère Suisse Annual calendar mechanism for a timepiece

Also Published As

Publication number Publication date
KR20080036926A (en) 2008-04-29
JP2008107350A (en) 2008-05-08
CN101169620B (en) 2010-12-01
ATE418093T1 (en) 2009-01-15
SG142272A1 (en) 2008-05-28
HK1119466A1 (en) 2009-03-06
US7535802B2 (en) 2009-05-19
DE602006004357D1 (en) 2009-01-29
JP5078542B2 (en) 2012-11-21
US20080094941A1 (en) 2008-04-24
EP1916575A1 (en) 2008-04-30
CN101169620A (en) 2008-04-30

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