EP1734419B1 - Timepiece with calendar mechanismus - Google Patents

Timepiece with calendar mechanismus Download PDF

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Publication number
EP1734419B1
EP1734419B1 EP05012721A EP05012721A EP1734419B1 EP 1734419 B1 EP1734419 B1 EP 1734419B1 EP 05012721 A EP05012721 A EP 05012721A EP 05012721 A EP05012721 A EP 05012721A EP 1734419 B1 EP1734419 B1 EP 1734419B1
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EP
European Patent Office
Prior art keywords
months
days
date
star
month
Prior art date
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Application number
EP05012721A
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German (de)
French (fr)
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EP1734419A1 (en
Inventor
Roger Bernasconi
Frédéric Maier
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Patek Philippe SA Geneve
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Patek Philippe SA Geneve
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Publication date
Application filed by Patek Philippe SA Geneve filed Critical Patek Philippe SA Geneve
Priority to EP05012721A priority Critical patent/EP1734419B1/en
Priority to AT05012721T priority patent/ATE395637T1/en
Priority to DE602005006774T priority patent/DE602005006774D1/en
Publication of EP1734419A1 publication Critical patent/EP1734419A1/en
Priority to HK07101204A priority patent/HK1094468A1/en
Application granted granted Critical
Publication of EP1734419B1 publication Critical patent/EP1734419B1/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
    • 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 present invention relates to a timepiece comprising a movement and a calendar mechanism comprising at least one date display mechanism with a date indicator.
  • Timepieces comprising a calendar mechanism with a calendar are classic complications frequently integrated into mechanical watches.
  • the calendar display is generally of reduced size, therefore not very legible, or constituted by two numbers arranged on separate disks, which confers an unattractive appearance.
  • the calendar jump at midnight is not instantaneous and accurate but may take several hours to pass for example from 28 February to 1 March, which is not acceptable especially in the context of a display high accuracy by window.
  • the object of the present invention is to overcome these drawbacks and the invention is characterized for this purpose by the features in claim 1, namely that at least the date indicator is driven by a large mounted lever. pivoting on a fixed part and likely to occupy daily a rest position, a lever of the months being pivotally mounted on the large rocker and having a first portion intended to come into contact with a cam of the months performing one turn per year to lift daily during said rest position the number of days of the current month and a second part likely to come into contact daily during an active phase with a drive rake pivotally mounted on said fixed part and set in motion by a drive cam performing one turn a day, the rake and the lever of the months being arranged so that the rake performs a no-load run for a predetermined distance during an inactive phase before coming into contact with said second part during said active phase, this predetermined distance being variable and a function of the number of days of the current month so that the large flip-flop is driven by the lever months during said active phase in a rotational movement
  • the rake and the lever of the months are arranged so that said empty stroke is minimal for the months to 28 days and maximum for those 31 days, such that the large scale is raised against the effect of a spring of recall during said active phase approaching 24 hours for months to 28 days.
  • the date indicator is constituted by a rotating annular piece bearing the date markings 1 to 31, this annular piece having a toothing cooperating with a large latch ratchet pivotally mounted on the large scale so that this ratchet of big rocker daily skips the date indicator of a single step when the fall of the large rocker regardless of the amplitude of the rotational movement of the large rocker.
  • the large rocker is provided with a finger months with a pin biased elastically against a portion of the annular piece which has a notch in which the pin falls at the end of each month, so that the large rocker by the intermediary of his finger of months advance the annular piece during its fall to achieve, at the end of each month, the catching up of the days between the last day of the month concerned and the first day of the following month.
  • the calendar mechanism furthermore comprises a mechanism for displaying the months comprising an indicator of the months integral with the cam of the months and a star of the months, said finger of the months being provided with a hook arranged so as to cooperate with the star of months at the end of each month when his pin fell in the notch to perform, when the fall of the big rocker, the rotation of a step of the star of months.
  • the toothing of the annular piece is advantageously made in non-through form on a rear face of the annular piece so as to allow large date inscriptions on a front face of this annular piece.
  • the date display can thus be made particularly visible and large.
  • the calendar mechanism comprises a day display mechanism comprising an integral day indicator of a star of days, the large scale being provided with a pivotally arranged day finger to make to skip day by day when he falls the star of the days of a single step whatever is said amplitude of the rotational movement of the big rocker.
  • the calendar mechanism comprises a date-driven mobile carrying out a revolution per day in a first direction of rotation around a shaft on which the drive cam is mounted freely rotating, a date finger being pivotally mounted on this drive cam and biased, for driving the drive cam in said first direction of rotation, elastically in a notch of the date drive mobile so that the date finger can leave the notch, when the mobile date coach is rotated in an opposite direction of rotation during a time setting.
  • the calendar mechanism includes a date display by window larger than the wickets displays months and days between 1 and 2 hours and between 10 and 11 hours, which are an identical or similar size.
  • the resulting display is balanced, harmonious and readable.
  • the timepiece 10 shown in the figures is of the mechanical movement type and comprises a calendar mechanism 11 in the form of an instantaneous perpetual calendar mechanism forming an additional mechanism that can be mounted on a suitable base movement 17.
  • the calendar mechanism 11 includes a date display mechanism 12, a month display mechanism 13 and a day display mechanism 14.
  • the entire timing mechanism 11 is driven from a centrally located calendar driver 16 and assembled with the hour wheel (not shown) of the base movement 17.
  • This return 16 calendar trainer performs two laps per day and engrains with a date driving mobile 18 rotating in one turn per day to drive a date cam 20 mounted to rotate on the same axis 21 as the date driving mobile 18 ( figures 1 and 5 ).
  • the latter drives the date cam 20 via a date finger 22 which is pivotally mounted on the cam 20 by means of a pin 23.
  • the pin 21 is pivotally mounted between two stones driven in a calendar board 28 and a mobile drive bridge 34.
  • the date cam 20 is free around this axis 21.
  • the driving mobile 18 has a hub 24 provided with a notch 25 in which the date finger 22 is biased by a spring 26 mounted under the cam 20 by means of a screw 29.
  • the driving mobile 18 rotates in a counterclockwise direction and the date cam 20 is integral with the driving mobile 18 because the notch 25 is in contact with the date finger 22.
  • the driving mobile 18 rotates in a clockwise direction and the date finger 22 can exit the notch 25 when the date cam 20 comes into contact with a rake 27.
  • This clutch avoids the breakage when we pass midnight by setting a time back.
  • the calendar mechanism comprises a cam of the months 30 performing one turn per year in a counterclockwise direction.
  • This cam of the months is of the cam type of 12 formed of a succession of troughs 31 and bumps 32 for the eleven months of 30 and 31 days and a cam of four years 35 for the month of February.
  • Three sides of this four year old cam 35 are close of its axis of rotation 36 for February 28.
  • the fourth side 37 is farther from the axis of rotation 36 for February 29 of a leap year.
  • the cam of the months 30 is integral with a star of the months 40 and a disc of the months 41.
  • the four-year-old cam 35 is secured to a four-year-old wheel 38 and rotates around the axis of rotation 36 mounted on the 40-year-old star.
  • This four-year-old wheel 38 forms a satellite wheel which revolves around the fixed gear 39 meshing with the latter.
  • the four-year cam 35 performs 2 turns and 1 ⁇ 4 on itself.
  • a lever 45 months comes by a point 46 bearing against the cam 30 months or cam four years 35 in the month of February.
  • the toothing 47 of the star of the months 40 cooperates, on the one hand, with a first jumper of months 48 whose two functional flanks 48a, 48b reposition this star of the months with a favorable and constant sliding angle and, on the other hand on the other hand, with a second jumper of unidirectional months 49 whose functional flank 49a is arranged so that the direction of the force applied to the teeth of the toothing 47 passes through its center of rotation.
  • the flanks 47a of the teeth of the toothing 47 are aimed at the center of the fixed axis 42.
  • the two jumpers 48, 49 are subjected to the action of two superposed return springs 50.
  • the disc of the months 41 is provided with inscriptions 52 corresponding to the twelve months and which are visible in a window of the months 53 placed on the dial 54 between 1 and 2 hours.
  • the calendar mechanism comprises a large flip-flop 60 ( figures 1 and 7 ).
  • the latter and the rake 27 are not integral, but they are rotated about a common axis 61 which is disposed near the center 62 of the movement.
  • the rake 27 and the lever of the months 45 are connected by a rake spring 64 arranged to urge the rake 27 against the date cam 20 and the lever of the months 45 against the cam 30 months in a rest position of an inactive phase.
  • This month lever 45 includes a first portion 65 having the tip 46 for co-operating with the month cam 30 or the four year cam 35 to read daily during the idle phase the number of days of the current month and a second portion 66 able to come into contact daily during an active phase with the rake 27.
  • the latter comprises a first part 67 intended to cooperate with the date cam 20 and a second part 68 having four notches 69a, 69b, 69c, 69d intended to cooperate with the lever of the months 45 according to the number of days 31, 30, 29, 28 that the current month presents.
  • the large flip-flop 60 is thus driven by the lever 45 months in a clockwise direction against the effect of a large flip-flop spring 70 when the lever of the months 45 is in contact with the rake 27.
  • the lever of the months 45 is limited in its displacement on one side by the rake 27 and on the other side by the cam of 30 months or the cam of four years 35 for a month of February.
  • the lever 45 months can therefore, in a rest position just after midnight, when not in contact with the rake 27, be in four different positions, depending on the number of days of the current month. As a result, its second part 66 will come into contact with the rake 27 more or less quickly. The rake 27 driven by the date cam 20 will have a longer or shorter idle stroke during the inactive phase until it meets the lever of the months 45.
  • this empty run of the rake is very short, minimum for the months of February to 28 days, for which the rake 27 will push the lever of the months 45 and the big rocker 60 during a very active phase approaching 24 hours on a displacement angular very long in a clockwise direction about the axis 61.
  • the rake 27 will perform a vacuum stroke of longer duration and amplitude during a longer idle phase.
  • the lever of the months 45 and the big latch 60 will then be driven during a much shorter subsequent active phase whose duration is about 6 hours. They will therefore perform a much shorter angular displacement.
  • the rake 27 and the lever 45 months lock each other by raising the large latch 60 by a rotation in a clockwise direction about the axis 61.
  • the large flip-flop 60 is further provided with a toothing 74 meshing with a pinion 75 which acts as a regulator and energy dissipator, so as to regulate and moderate the speed of the anti-clockwise drop of the large scale. .
  • This regulator can be done in several ways, by the addition of a friction spring, increasing or decreasing the mass so the inertia or by working on the profiles of the teeth to have a different gear output for each tooth and profile.
  • the month 45 lever and the big latch 60 occupy daily just after midnight a rest position during which the lever of the month 45 raises the number of days of the current month.
  • the rake 27 performs a no-load run for a predetermined distance before coming into contact with the month lever 45, this active distance being variable and a function of the number of days of the current month.
  • the large flip-flop 60 is driven via the lever of the months 45 in a clockwise rotational movement whose amplitude is a function of the said number of days of the current month. Then the large latch 60 performs a fall in the opposite direction at the end of this active phase by driving all the display mechanisms.
  • the date display mechanism 12 comprises a date indicator 77 constituted by a rotating annular piece 78 rotatably mounted on the calendar board 28 by means of rollers 79.
  • This annular piece 78 has 81 inscriptions of date 1 to 31 on its front face. These inscriptions 81 are large and visible in a date window 80 which is larger than the window 53 months and located at 12 o'clock.
  • the annular piece 78 is provided on its rear face with a set of teeth 83 which has the particularity of being internal and not traversing in the form of recesses.
  • inscriptions 1 to 31 on the anterior surface may be large for a given width of the annular piece 78. In addition, this allows easy assembly and disassembly of the calendar mechanism.
  • a big rocker ratchet 85 ( figures 1 and 8 ) is pivotally mounted on the large rocker 60 by means of a shaft 87 and arranged to cooperate with the toothing 83 of the annular piece 78 to blow the date indicator 77 daily by a single step during the fall of the large flip-flop 60, regardless of the amplitude of the rotational movement of the large flip-flop 60.
  • a return spring 88 mounted on the large rocker is arranged to urge, in the rest position, the big rocker pawl 85 against a pin 89 driven into the large rocker 85.
  • the date display mechanism 12 further comprises a date jumper 90 ( figure 1 ) arranged to cooperate with the toothing 83 of the annular piece 78 by the action of a spring 91. Because of the space available between two teeth of the toothing 83, the jumper 90 has three functional flanks.
  • Two flanks 92, 93 are oriented to reposition the annular piece 78 with a favorable and constant sliding angle.
  • a third sidewall 94 is arranged in such a way that the direction of the force applied to the teeth of the toothing 83 passes through the center of the axis of rotation 96 of the date jumper 90.
  • the sidewalls 95 of the teeth of the toothing 83 are aimed at the center of rotation 62 of the annular piece 78.
  • the calendar mechanism 11 also has a finger 100 months which is articulated along an axis 101 on the large flip-flop 60 ( figures 1 , 7 , 8 and 9 ).
  • This finger is provided in its middle part with a protruding portion in the form of a pin 102 arranged to cooperate with an outer periphery 105 forming a cylindrical edge of the toothing 83 and with a notch 103 provided in this periphery 105.
  • the finger months for this purpose an elastic extension 115 for biasing the pin 102 against said periphery 105 and, at the end of the month, in the notch 103 which is indexed with the teeth of the toothing 83 of the date indicator 77 ( figure 8 ).
  • the pin 102 falls into the notch 103 and the hook 104 moves on a curve such that it drives a tooth of the 40 month star on a step during the fall from the big latch 60 to midnight.
  • the 30-month cam, the 41-month disc, and the four-year-old cam 35 are also advanced one step.
  • the display mechanism of the days 14 is also controlled by the large flip-flop 60 ( figures 1 and 9 ) and comprises for this purpose a finger of the days 110 which is pivotally mounted on the large latch 60 by the same axis 101 as the finger of the month 100.
  • the finger of the days 110 is intended to blow daily a star of the days 111 of one step regardless of the big flip 60 when falling at midnight.
  • This star of days 111 is attached to a disc of days 112 bearing inscriptions of days 113 visible in a third window 114 located between 10 and 11 o'clock of the dial and smaller than the date window 80, but of similar size or identical to that of the window of the months 53.
  • the 111 day star and the 112 day disc perform one turn per week.
  • the finger of the days 110, respectively the big latch ratchet 85 have the peculiarity of remaining in the toothing of the star of the days 111, respectively of the date indicator 77 after the jump of a step, which makes it possible to avoid multiple jumps. This is also the case for the hook 104 on the first day of the month ( figure 4 ).
  • the finger of the days 110 is subjected to the action of a return spring which is constituted by the elastic extension 115 of the finger of the months 100.
  • a return spring which is constituted by the elastic extension 115 of the finger of the months 100.
  • This finger months is shaped so that the arm carrying the hook 104 is biased elastically in the direction of the star 40 months, the middle portion bearing the pin 102 is elastically biased towards the date indicator 77 and its notch 103 and that its elastic extension 115 provides the function of return spring for the finger days 110.
  • This finger of the month 100 also makes it possible to make up the days at the end of the month on the date indicator 77 and the advance of a step of the star of the month 40.
  • the star of the days 111 is subjected to the action of two jumpers ( figures 1 and 9 ), namely a jumper 117 days with two functional flanks to reposition the star of days with a favorable and constant slip angle and a jumper unidirectional days 118 whose functional flank is arranged so that the direction of the force applied on the teeth of the star of days 111 passes through the center of rotation of the jumper of unidirectional days 118.
  • the two jumpers 117, 118 are subjected to the action of two springs 119 superimposed ( figure 1 ).
  • the flanks of the teeth of the star of days 111 aim at the center of rotation of this star of days.
  • the different jumpers 48, 49, 90, 117 and 118 make it possible to prevent the finger of the months 100, the large weighing pawl 85 and the finger of the days 110 from causing the star of the months 40, the date indicator 77 and the star of 111 days during the time shift of the large flip-flop 60 and thus avoid a shift even minor display of the inscriptions in their respective counters.
  • the figures 2 , 3 and 4 illustrate the movements of the different parts of the calendar mechanism 11 between February 28 and March 1.
  • the figure 2 corresponds to the position in the first minute of Monday, February 28th.
  • the lever of the months 45 is brought into contact with the four year old cam 35.
  • its second part 66 is very close to the notch 69d ( figure 5 ) of the second portion 68 of the rake 27. The latter will therefore very quickly drive the lever 45 months and the large latch 60 during an active phase that lasts for almost 24 hours.
  • the big latch 60 performed at the end of the day just before midnight ( figure 3 ) a rotation in a clockwise direction of a large amplitude.
  • the pin 102 of the finger months 100 will fall into the slot 103 located four back teeth on the annular member 78 to catch the indication of days between February 28 and March 1.
  • the date cam 20 releases the rake 27 and the large latch 60 which then performs a rapid rotation, but controlled in the counterclockwise direction.
  • the 77 calendar indicator is instantly advanced from 28 February to 1 March ( figure 4 ) jumping the dates 29, 30 and 31. Simultaneously the disc of the months 41 and the disc of the days 112 are advanced one step.
  • the rake 27 performs an identical rotational movement every day.
  • the large latch 60 carries out every day of a given month an identical rotational movement and advances every day at midnight the date indicator 77 and the disc of days 112 a step.
  • the pin 102 can cooperate with the notch 103 to allow the catching up of the days at the end of the month and to advance the disk of the months 41 by one step.
  • the date functions are performed directly on the date indicator 77, which reduces the number of moving parts, simplify the mechanism and increase reliability.
  • the calendar mechanism 11 further comprises a date display using a large trapezoidal aperture 80 located at 12 o'clock and displays of months and days by smaller trapezoidal counters 53, 114 located between 1 and 2 hours and between 10 and 11 hours.
  • the display thus obtained is balanced, harmonious and very readable.
  • This calendar mechanism 11 with instantaneous perpetual calendar is particularly suitable for mounting as an additional mechanism on different basic movements.
  • the embodiment described above is not limiting and that it can receive any desirable modifications within the frame as defined by claim 1.
  • the calendar mechanism can not understand whether a perpetual calendar display or not, without displaying days and / or months, or the display of other data, such as years, 24 hours, moon phases or other astronomical data .
  • the arrangement of the counters on the dial may be different, the date may for example be placed at 6 o'clock.
  • the date indicators, months and / or days may be constituted by other organs, such as needles.

Abstract

The timepiece has a calendar mechanism (11) including a date display mechanism (12) with a date indicator (77) driven by a large lever (60). A rack (27) and a month lever (45) are arranged such that the rack carries out an idle motion at a preset distance during an inactive phase before coming in contact with a part (66) of the lever (45) during an active phase. The large lever is driven by the lever (45) during the active phase along a rotational movement in one direction and performs a drop in the reverse direction at the end of the active phase by driving the indicator.

Description

La présente invention concerne une pièce d'horlogerie comprenant un mouvement et un mécanisme de calendrier comportant au moins un mécanisme d'affichage de quantième avec un indicateur de quantième.The present invention relates to a timepiece comprising a movement and a calendar mechanism comprising at least one date display mechanism with a date indicator.

Les pièces d'horlogerie comportant un mécanisme de calendrier avec un quantième sont des complications classiques fréquemment intégrées dans des montres mécaniques.Timepieces comprising a calendar mechanism with a calendar are classic complications frequently integrated into mechanical watches.

Cependant l'affichage du quantième est généralement de taille réduite, donc peu lisible, ou constitué par deux chiffres disposés sur des disques séparés, ce qui confère un aspect peu esthétique. En outre, le saut de quantième à minuit n'est pas instantané et précis, mais peut nécessiter plusieurs heures pour passer par exemple du 28 février au 1er mars, ce qui n'est pas acceptable surtout dans le cadre d'un affichage de grande précision par guichet.However, the calendar display is generally of reduced size, therefore not very legible, or constituted by two numbers arranged on separate disks, which confers an unattractive appearance. In addition, the calendar jump at midnight is not instantaneous and accurate but may take several hours to pass for example from 28 February to 1 March, which is not acceptable especially in the context of a display high accuracy by window.

Les mécanismes de calendrier connus nécessitent généralement pour leur entraînement un couple élevé du mouvement de base. En outre, leur construction est généralement compliquée et fait usage d'un nombre de pièces élevées.Known calendar mechanisms generally require for their training a high torque of the basic movement. In addition, their construction is generally complicated and makes use of a number of high parts.

Un tel mécanisme est proposé, par example, dans le document DE 205445 .Such a mechanism is proposed, for example, in the document DE 205445 .

La présente invention a pour but de remédier à ces inconvénients et l'invention est caractérisée à cet effet par les caractéristiques figurant dans la revendication 1, à savoir par le fait qu'au moins l'indicateur de quantième est entraîné par une grande bascule montée pivotante sur une partie fixe et susceptible d'occuper journellement une position de repos, un levier des mois étant monté pivotant sur la grande bascule et comportant une première partie destinée à entrer en contact avec une came des mois effectuant un tour par an pour relever journellement pendant ladite position de repos le nombre de jours du mois en cours et une seconde partie susceptible d'entrer en contact journellement pendant une phase active avec un râteau d'entraînement monté pivotant sur ladite partie fixe et mise en mouvement par une came d'entraînement effectuant un tour par jour, le râteau et le levier des mois étant agencés de façon que le râteau effectue une course à vide sur une distance prédéterminée pendant une phase inactive avant d'entrer en contact avec ladite seconde partie lors de ladite phase active, cette distance prédéterminée étant variable et une fonction du nombre de jours du mois en cours de façon que la grande bascule soit entraînée par le levier des mois pendant ladite phase active selon un mouvement de rotation suivant un premier sens et dont l'amplitude est une fonction dudit nombre de jours du mois en cours, la grande bascule effectuant une chute en sens inverse à la fin de cette phase active en entraînant ledit indicateur de quantième.The object of the present invention is to overcome these drawbacks and the invention is characterized for this purpose by the features in claim 1, namely that at least the date indicator is driven by a large mounted lever. pivoting on a fixed part and likely to occupy daily a rest position, a lever of the months being pivotally mounted on the large rocker and having a first portion intended to come into contact with a cam of the months performing one turn per year to lift daily during said rest position the number of days of the current month and a second part likely to come into contact daily during an active phase with a drive rake pivotally mounted on said fixed part and set in motion by a drive cam performing one turn a day, the rake and the lever of the months being arranged so that the rake performs a no-load run for a predetermined distance during an inactive phase before coming into contact with said second part during said active phase, this predetermined distance being variable and a function of the number of days of the current month so that the large flip-flop is driven by the lever months during said active phase in a rotational movement in a first direction and whose amplitude is a function of said number of days of the current month, the large flip-flop falling in the opposite direction at the end of this active phase by driving said date indicator.

Grâce à ces caractéristiques, on obtient un mécanisme de calendrier n'utilisant pour son entraînement qu'un couple réduit du mouvement de base du fait que la grande bascule est levée pendant une phase active de durée considérable. Le nombre de pièces en mouvement du mécanisme est en outre peu élevé et la construction du mécanisme peut être simple tout en bénéficiant d'une grande fiabilité. Le saut de quantième est instantané et précis, même pour le rattrapage des jours du mois de février, et l'affichage du quantième peut être de grande taille avec des chiffres disposés sur une seule pièce mobile, permettant ainsi un affichage du quantième bien lisible et esthétique.Thanks to these characteristics, we obtain a calendar mechanism using for its training only a reduced torque of the basic movement because the large rocker is lifted during an active phase of considerable duration. The number of moving parts of the mechanism is also low and the construction of the mechanism can be simple while enjoying great reliability. The date jump is instantaneous and precise, even for catching the days of the month of February, and the display of the date can be large with numbers arranged on a single moving part, thus allowing a display of the date well readable and aesthetic.

Favorablement, le râteau et le levier des mois sont agencés de façon que ladite course à vide est minimale pour les mois à 28 jours et maximale pour ceux à 31 jours, telle que la grande bascule soit levée contre l'effet d'un ressort de rappel pendant ladite phase active approchant 24 heures pour les mois à 28 jours.Favorably, the rake and the lever of the months are arranged so that said empty stroke is minimal for the months to 28 days and maximum for those 31 days, such that the large scale is raised against the effect of a spring of recall during said active phase approaching 24 hours for months to 28 days.

On peut ainsi obtenir une utilisation d'un couple de levage réduit à une valeur très faible pour la levée de la grande bascule et ceci pendant une durée considérable, ce qui permet l'intégration du mécanisme de calendrier dans un grand nombre de mouvement de base.It is thus possible to obtain a use of a reduced lifting torque at a very low value for lifting the large scale and this for a considerable time, which allows the integration of the calendar mechanism in a large number of basic movements. .

Selon un mode d'exécution préféré, l'indicateur de quantième est constitué par une pièce annulaire rotative portant les inscriptions de quantième 1 à 31, cette pièce annulaire comportant une denture coopérant avec un cliquet de grande bascule monté pivotant sur la grande bascule de façon que ce cliquet de grande bascule fasse sauter journellement l'indicateur de quantième d'un seul pas lors de la chute de la grand bascule quelle que soit ladite amplitude du mouvement de rotation de la grande bascule.According to a preferred embodiment, the date indicator is constituted by a rotating annular piece bearing the date markings 1 to 31, this annular piece having a toothing cooperating with a large latch ratchet pivotally mounted on the large scale so that this ratchet of big rocker daily skips the date indicator of a single step when the fall of the large rocker regardless of the amplitude of the rotational movement of the large rocker.

Ces caractéristiques permettent d'obtenir un affichage de quantième d'une construction particulièrement simple et précise. Les fonctions du quantième sont réalisées directement sur l'indicateur de quantième afin de réduire le nombre de pièces en mouvement.These characteristics make it possible to obtain a date display of a particularly simple and precise construction. The calendar functions are performed directly on the date indicator to reduce the number of moving parts.

De façon avantageuse, la grande bascule est munie d'un doigt des mois comportant une goupille sollicitée élastiquement contre une partie de la pièce annulaire qui présente une encoche dans laquelle tombe la goupille à la fin de chaque mois, de façon que la grande bascule par l'intermédiaire de son doigt des mois fasse avancer la pièce annulaire lors de sa chute pour réaliser, à la fin de chaque mois, le rattrapage des jours entre le dernier jour du mois concerné et le premier jour du mois suivant.Advantageously, the large rocker is provided with a finger months with a pin biased elastically against a portion of the annular piece which has a notch in which the pin falls at the end of each month, so that the large rocker by the intermediary of his finger of months advance the annular piece during its fall to achieve, at the end of each month, the catching up of the days between the last day of the month concerned and the first day of the following month.

Ainsi, le saut de quantième est réalisé de façon instantanée grâce à une construction particulièrement fiable et simple.Thus, the date jump is achieved instantaneously thanks to a particularly reliable and simple construction.

Très favorablement, le mécanisme de calendrier comprend en outre un mécanisme d'affichage des mois comportant un indicateur des mois solidaire de la came des mois et d'une étoile des mois, ledit doigt des mois étant muni d'un crochet agencé de façon à coopérer avec l'étoile des mois à la fin de chaque mois lorsque sa goupille est tombée dans l'encoche pour effectuer, lors de la chute de la grande bascule, la rotation d'un pas de l'étoile des mois.Very favorably, the calendar mechanism furthermore comprises a mechanism for displaying the months comprising an indicator of the months integral with the cam of the months and a star of the months, said finger of the months being provided with a hook arranged so as to cooperate with the star of months at the end of each month when his pin fell in the notch to perform, when the fall of the big rocker, the rotation of a step of the star of months.

Ces caractéristiques permettent encore davantage de réduire le nombre de pièces du mécanisme tout en augmentant sa fiabilité.These features further reduce the number of parts of the mechanism while increasing its reliability.

La denture de la pièce annulaire est réalisée avantageusement sous forme non traversante sur une face postérieure de la pièce annulaire de façon à permettre des inscriptions de quantième de grande taille sur une face frontale de cette pièce annulaire.The toothing of the annular piece is advantageously made in non-through form on a rear face of the annular piece so as to allow large date inscriptions on a front face of this annular piece.

L'affichage du quantième peut ainsi être réalisé de façon particulièrement visible et de grande taille.The date display can thus be made particularly visible and large.

Selon un mode d'exécution favorable, le mécanisme de calendrier comprend un mécanisme d'affichage des jours comportant un indicateur des jours solidaire d'une étoile des jours, la grande bascule étant munie d'un doigt de jours agencé de façon pivotante pour faire sauter journellement lors de sa chute l'étoile des jours d'un seul pas quelle que soit ladite amplitude du mouvement de rotation de la grande bascule.According to a favorable embodiment, the calendar mechanism comprises a day display mechanism comprising an integral day indicator of a star of days, the large scale being provided with a pivotally arranged day finger to make to skip day by day when he falls the star of the days of a single step whatever is said amplitude of the rotational movement of the big rocker.

On obtient grâce à ces caractéristiques une construction du mécanisme de calendrier comportant un nombre de pièces réduites, mais d'une grande précision.These characteristics result in a construction of the calendar mechanism comprising a small number of parts, but with great precision.

De façon avantageuse, le mécanisme de calendrier comprend un mobile entraîneur de quantième effectuant un tour par jour suivant un premier sens de rotation autour d'un arbre sur lequel la came d'entraînement est montée librement tournant, un doigt de quantième étant monté pivotant sur cette came d'entraînement et sollicité, pour l'entraînement de la came d'entraînement suivant ledit premier sens de rotation, élastiquement dans une encoche du mobile entraîneur de quantième de façon que le doigt de quantième puisse sortir de l'encoche, lorsque le mobile entraîneur de quantième est mis en rotation suivant un sens de rotation opposé lors d'une mise à l'heure.Advantageously, the calendar mechanism comprises a date-driven mobile carrying out a revolution per day in a first direction of rotation around a shaft on which the drive cam is mounted freely rotating, a date finger being pivotally mounted on this drive cam and biased, for driving the drive cam in said first direction of rotation, elastically in a notch of the date drive mobile so that the date finger can leave the notch, when the mobile date coach is rotated in an opposite direction of rotation during a time setting.

Ces caractéristiques permettent d'éviter que le mécanisme de calendrier ne soit détérioré lors d'une mise à l'heure en arrière en passant minuit.These features make it possible to prevent the calendar mechanism from being damaged during a time-setting back by midnight.

Selon un mode d'exécution favorable, le mécanisme de calendrier comporte un affichage de quantième par guichet de plus grande taille que les guichets des affichages des mois et des jours situés entre 1 et 2 heures et entre 10 et 11 heures, qui sont d'une taille identique ou similaire.According to a favorable embodiment, the calendar mechanism includes a date display by window larger than the wickets displays months and days between 1 and 2 hours and between 10 and 11 hours, which are an identical or similar size.

L'affichage ainsi obtenu est équilibré, harmonieux et lisible.The resulting display is balanced, harmonious and readable.

D'autres avantages ressortent des caractéristiques exprimées dans les revendications dépendantes et de la description exposant ci-après l'invention plus en détail à l'aide de dessins qui représentent schématiquement et à titre d'exemple un mode d'exécution.

  • La figure 1 est une vue en plan de ce mode d'exécution dans une première position correspondant au 31 mars à 0 h 01 min.
  • La figure 2 est une vue en plan de ce mode d'exécution dans une seconde position correspondant au 28 février à 0 h 01 min.
  • La figure 3 est une vue en plan de ce mode d'exécution dans une troisième position correspondant au 28 février à 23 h 59 min.
  • La figure 4 est une vue en plan de ce mode d'exécution dans une quatrième position correspondant au 1er mars à 0 h 01 min.
  • La figure 5 est une vue de détail des figures précédentes illustrant l'entraînement du mécanisme de calendrier.
  • La figure 6 est une vue de détail de la figure 2 illustrant plus particulièrement le mécanisme d'affichage des mois.
  • La figure 7 est une vue de détail de la figure 2 illustrant plus particulièrement la grande bascule et les organes associés à cette dernière.
  • La figure 8 est une vue de détail de la figure 2 illustrant plus particulièrement le mécanisme d'affichage de quantième.
  • La figure 9 est une vue de détail illustrant plus particulièrement le mécanisme d'affichage des jours.
Other advantages emerge from the features expressed in the dependent claims and from the following description describing the invention more in detail with the aid of drawings which schematically and by way of example represent a mode of execution.
  • The figure 1 is a plan view of this embodiment in a first position corresponding to March 31 at 0 h 01 min.
  • The figure 2 is a plan view of this embodiment in a second position corresponding to February 28 at 0 h 01 min.
  • The figure 3 is a plan view of this embodiment in a third position corresponding to February 28 at 23 h 59 min.
  • The figure 4 is a plan view of this embodiment in a fourth position corresponding to March 1 st at 0 h 01 min.
  • The figure 5 is a detail view of the preceding figures illustrating the training of the calendar mechanism.
  • The figure 6 is a detail view of the figure 2 illustrating in particular the display mechanism of the months.
  • The figure 7 is a detail view of the figure 2 illustrating in particular the large scale and the associated bodies.
  • The figure 8 is a detail view of the figure 2 illustrating more particularly the date display mechanism.
  • The figure 9 is a detail view illustrating more particularly the display mechanism of the days.

La pièce d'horlogerie 10 représentée aux figures est du type mouvement mécanique et comprend un mécanisme de calendrier 11 sous forme d'un mécanisme de quantième perpétuel instantané formant un mécanisme additionnel qui peut être monté sur un mouvement de base 17 adéquat.The timepiece 10 shown in the figures is of the mechanical movement type and comprises a calendar mechanism 11 in the form of an instantaneous perpetual calendar mechanism forming an additional mechanism that can be mounted on a suitable base movement 17.

En référence à la figure 1, le mécanisme de calendrier 11 comprend un mécanisme d'affichage de quantième 12, un mécanisme d'affichage des mois 13 et un mécanisme d'affichage des jours 14.With reference to the figure 1 the calendar mechanism 11 includes a date display mechanism 12, a month display mechanism 13 and a day display mechanism 14.

L'entraînement de l'ensemble du mécanisme de calendrier 11 est effectué à partir d'un renvoi entraîneur de calendrier 16 situé au centre et assemblé avec la roue des heures (non représentée) du mouvement de base 17.The entire timing mechanism 11 is driven from a centrally located calendar driver 16 and assembled with the hour wheel (not shown) of the base movement 17.

Ce renvoi entraîneur de calendrier 16 effectue deux tours par jour et engraine avec un mobile entraîneur de quantième 18 tournant en un tour par jour pour entraîner une came de quantième 20 montée tournant sur le même axe 21 que le mobile entraîneur de quantième 18 (figures 1 et 5). Ce dernier entraîne la came de quantième 20 par l'intermédiaire d'un doigt de quantième 22 qui est monté pivotant sur la came 20 grâce à une goupille 23. L'axe 21 est monté pivotant entre deux pierres chassées dans une planche de calendrier 28 et un pont de mobile entraîneur 34. La came de quantième 20 est libre autour de cet axe 21.This return 16 calendar trainer performs two laps per day and engrains with a date driving mobile 18 rotating in one turn per day to drive a date cam 20 mounted to rotate on the same axis 21 as the date driving mobile 18 ( figures 1 and 5 ). The latter drives the date cam 20 via a date finger 22 which is pivotally mounted on the cam 20 by means of a pin 23. The pin 21 is pivotally mounted between two stones driven in a calendar board 28 and a mobile drive bridge 34. The date cam 20 is free around this axis 21.

Le mobile entraîneur 18 possède un moyeu 24 muni d'une encoche 25 dans laquelle le doigt de quantième 22 est sollicité par un ressort 26 monté sous la came 20 au moyen d'une vis 29.The driving mobile 18 has a hub 24 provided with a notch 25 in which the date finger 22 is biased by a spring 26 mounted under the cam 20 by means of a screw 29.

Ainsi, pendant le fonctionnement normal de la pièce d'horlogerie, le mobile entraîneur 18 tourne dans un sens antihoraire et la came de quantième 20 est solidaire avec le mobile entraîneur 18 du fait que l'encoche 25 est en contact avec le doigt de quantième 22.Thus, during the normal operation of the timepiece, the driving mobile 18 rotates in a counterclockwise direction and the date cam 20 is integral with the driving mobile 18 because the notch 25 is in contact with the date finger 22.

Par contre, si l'utilisateur fait tourner les aiguilles en arrière en mode de mise à l'heure, le mobile entraîneur 18 tourne dans un sens horaire et le doigt de quantième 22 peut sortir de l'encoche 25 lorsque la came de quantième 20 rentre en contact avec un râteau 27. Ce débrayage permet d'éviter la casse lorsque l'on passe minuit en faisant une mise à l'heure en arrière.On the other hand, if the user turns the hands back to the time setting mode, the driving mobile 18 rotates in a clockwise direction and the date finger 22 can exit the notch 25 when the date cam 20 comes into contact with a rake 27. This clutch avoids the breakage when we pass midnight by setting a time back.

En référence aux figures 1 et 6, le mécanisme de calendrier comprend une came des mois 30 effectuant un tour par an suivant un sens antihoraire. Cette came des mois est du type came de 12 formée d'une succession de creux 31 et de bosses 32 pour les onze mois de 30 et 31 jours et une came de quatre ans 35 pour le mois de février. Trois côtés de cette came de quatre ans 35 sont proches de son axe de rotation 36 pour le 28 février. Le quatrième côté 37 est plus éloigné de l'axe de rotation 36 pour le 29 février d'une année bissextile.With reference to figures 1 and 6 , the calendar mechanism comprises a cam of the months 30 performing one turn per year in a counterclockwise direction. This cam of the months is of the cam type of 12 formed of a succession of troughs 31 and bumps 32 for the eleven months of 30 and 31 days and a cam of four years 35 for the month of February. Three sides of this four year old cam 35 are close of its axis of rotation 36 for February 28. The fourth side 37 is farther from the axis of rotation 36 for February 29 of a leap year.

La came des mois 30 est solidaire d'une étoile des mois 40 et d'un disque des mois 41.The cam of the months 30 is integral with a star of the months 40 and a disc of the months 41.

Ces trois éléments tournent autour d'un axe fixe 42 chassé dans la planche de calendrier 28 et solidaire d'un pignon fixe 39.These three elements rotate around a fixed axis 42 driven in the calendar board 28 and secured to a fixed gear 39.

La came de quatre ans 35 est solidaire d'une roue de quatre ans 38 et montée tournante autour de l'axe de rotation 36 monté sur l'étoile des mois 40. Cette roue de quatre ans 38 forme une roue satellite qui tourne autour du pignon fixe 39 en engrenant avec ce dernier. A chaque tour de la came des mois 30, la came de quatre ans 35 effectue 2 tours et ¼ sur elle-même.The four-year-old cam 35 is secured to a four-year-old wheel 38 and rotates around the axis of rotation 36 mounted on the 40-year-old star. This four-year-old wheel 38 forms a satellite wheel which revolves around the fixed gear 39 meshing with the latter. At each turn of the 30-month cam, the four-year cam 35 performs 2 turns and ¼ on itself.

Un levier des mois 45 vient par une pointe 46 en appui contre la came des mois 30 ou la came de quatre ans 35 lors du mois de février.A lever 45 months comes by a point 46 bearing against the cam 30 months or cam four years 35 in the month of February.

La denture 47 de l'étoile des mois 40 coopère, d'une part, avec un premier sautoir des mois 48 dont les deux flancs fonctionnels 48a, 48b repositionnent cette étoile des mois avec un angle de glissement favorable et constant et, d'autre part, avec un second sautoir des mois unidirectionnel 49 dont le flanc fonctionnel 49a est agencé de façon que la direction de la force appliquée sur les dents de la denture 47 passe par son centre de rotation. Les flancs 47a des dents de la denture 47 visent le centre de l'axe fixe 42. Les deux sautoirs 48, 49 sont soumis à l'action de deux ressorts de rappel 50 superposés.The toothing 47 of the star of the months 40 cooperates, on the one hand, with a first jumper of months 48 whose two functional flanks 48a, 48b reposition this star of the months with a favorable and constant sliding angle and, on the other hand on the other hand, with a second jumper of unidirectional months 49 whose functional flank 49a is arranged so that the direction of the force applied to the teeth of the toothing 47 passes through its center of rotation. The flanks 47a of the teeth of the toothing 47 are aimed at the center of the fixed axis 42. The two jumpers 48, 49 are subjected to the action of two superposed return springs 50.

Dans la position de repos illustré à la figure 6, le flanc 48a du premier sautoir des mois 48 est en contact avec une des dents de la denture 47 et le flanc 47a de cette dent est en appui contre le flanc fonctionnel 49a du second sautoir des mois 49. Ainsi l'étoile des mois 40 possède une position de repos bien défini. Il est à noter que dans cette position, le flanc fonctionnel 48b du premier sautoir des mois 48 n'est pas en contact avec la dent voisine, mais séparé de cette dernière par un interstice.In the rest position shown in figure 6 the flank 48a of the first jumper of the months 48 is in contact with one of the teeth of the toothing 47 and the flank 47a of this tooth bears against the functional flank 49a of the second jumper of the months 49. Thus the star of the months 40 has a well defined rest position. It should be noted that in this position, the functional flank 48b of the first jumper months 48 is not in contact with the neighboring tooth, but separated from the latter by a gap.

Le disque des mois 41 est muni d'inscriptions 52 correspondant aux douze mois et qui sont visibles dans un guichet des mois 53 placé sur le cadran 54 entre 1 et 2 heures.The disc of the months 41 is provided with inscriptions 52 corresponding to the twelve months and which are visible in a window of the months 53 placed on the dial 54 between 1 and 2 hours.

Afin de réaliser l'entraînement des mécanismes d'affichage de quantième, des mois et des jours 12, 13, 14, le mécanisme de calendrier comprend une grande bascule 60 (figures 1 et 7). Cette dernière et le râteau 27 ne sont pas solidaires, mais ils sont pivotés selon un axe commun 61 qui est disposé près du centre 62 du mouvement.In order to carry out the training of the date display mechanisms, months and days 12, 13, 14, the calendar mechanism comprises a large flip-flop 60 ( figures 1 and 7 ). The latter and the rake 27 are not integral, but they are rotated about a common axis 61 which is disposed near the center 62 of the movement.

Par contre le levier des mois 45 est pivoté sur la grande bascule 60 selon un axe de pivotement 63 et se déplace donc avec elle.On the other hand the lever of the months 45 is pivoted on the big rocker 60 according to a pivot axis 63 and therefore moves with it.

Le râteau 27 et le levier des mois 45 sont reliés par un ressort de râteau 64 agencé de façon à solliciter le râteau 27 contre la came de quantième 20 et le levier des mois 45 contre la came des mois 30 dans une position de repos d'une phase inactive.The rake 27 and the lever of the months 45 are connected by a rake spring 64 arranged to urge the rake 27 against the date cam 20 and the lever of the months 45 against the cam 30 months in a rest position of an inactive phase.

Ce levier des mois 45 comprend une première partie 65 comportant la pointe 46 destinée à coopérer avec la came des mois 30 ou la came de quatre ans 35 pour relever journellement pendant la phase inactive le nombre de jours du mois en cours et une seconde partie 66 susceptible d'entrer en contact journellement pendant une phase active avec le râteau 27. Ce dernier comprend une première partie 67 destinée à coopérer avec la came de quantième 20 et une seconde partie 68 présentant quatre entailles 69a, 69b, 69c, 69d destinées à coopérer avec le levier des mois 45 selon le nombre de jours 31, 30, 29, 28 que le mois en cours présente.This month lever 45 includes a first portion 65 having the tip 46 for co-operating with the month cam 30 or the four year cam 35 to read daily during the idle phase the number of days of the current month and a second portion 66 able to come into contact daily during an active phase with the rake 27. The latter comprises a first part 67 intended to cooperate with the date cam 20 and a second part 68 having four notches 69a, 69b, 69c, 69d intended to cooperate with the lever of the months 45 according to the number of days 31, 30, 29, 28 that the current month presents.

La grande bascule 60 est donc entraînée par le levier des mois 45 suivant un sens de rotation horaire contre l'effet d'un ressort de grande bascule 70 lorsque le levier des mois 45 est en contact avec le râteau 27. Le levier des mois 45 est limité dans son déplacement d'un côté par le râteau 27 et de l'autre côté par la came des mois 30 ou la came de quatre ans 35 pour un mois de février.The large flip-flop 60 is thus driven by the lever 45 months in a clockwise direction against the effect of a large flip-flop spring 70 when the lever of the months 45 is in contact with the rake 27. The lever of the months 45 is limited in its displacement on one side by the rake 27 and on the other side by the cam of 30 months or the cam of four years 35 for a month of February.

Le levier des mois 45 peut donc, dans une position de repos juste après minuit, lorsqu'il n'est pas en contact avec le râteau 27, se trouver dans quatre positions différentes, selon le nombre de jours du mois en cours. En conséquence, sa seconde partie 66 va entrer en contact avec le râteau 27 plus ou moins rapidement. Le râteau 27 entraîné par la came de quantième 20 aura une course à vide plus ou moins longue pendant la phase inactive jusqu'à ce qu'il rencontre le levier des mois 45.The lever 45 months can therefore, in a rest position just after midnight, when not in contact with the rake 27, be in four different positions, depending on the number of days of the current month. As a result, its second part 66 will come into contact with the rake 27 more or less quickly. The rake 27 driven by the date cam 20 will have a longer or shorter idle stroke during the inactive phase until it meets the lever of the months 45.

En référence aux figures 2 et 3, cette course à vide du râteau est très courte, minimale pour les mois de février à 28 jours, pour lesquels le râteau 27 poussera donc le levier des mois 45 et la grande bascule 60 pendant une phase active très longue approchant 24 heures sur un déplacement angulaire très long suivant un sens de rotation horaire autour de l'axe 61.With reference to figures 2 and 3 , this empty run of the rake is very short, minimum for the months of February to 28 days, for which the rake 27 will push the lever of the months 45 and the big rocker 60 during a very active phase approaching 24 hours on a displacement angular very long in a clockwise direction about the axis 61.

A l'inverse pour les mois de 31 jours (figures 1 et 4), le râteau 27 effectuera une course à vide d'une durée et amplitude plus longue pendant une phase inactive plus longue. Le levier des mois 45 et la grande bascule 60 seront alors entraînés pendant une phase active subséquente beaucoup plus courte dont la durée est d'environ 6 heures. Ils effectueront donc un déplacement angulaire beaucoup plus court.Conversely for the months of 31 days ( figures 1 and 4 ), the rake 27 will perform a vacuum stroke of longer duration and amplitude during a longer idle phase. The lever of the months 45 and the big latch 60 will then be driven during a much shorter subsequent active phase whose duration is about 6 hours. They will therefore perform a much shorter angular displacement.

Les mois à 29 et 30 jours donneront des durées et déplacements intermédiaires entre ces deux extrêmes.The months at 29 and 30 days will give durations and intermediate displacements between these two extremes.

Lors de leurs déplacements, le râteau 27 et le levier des mois 45 se verrouillent mutuellement en levant la grande bascule 60 par une rotation suivant un sens horaire autour de l'axe 61.During their movements, the rake 27 and the lever 45 months lock each other by raising the large latch 60 by a rotation in a clockwise direction about the axis 61.

Lorsque juste avant minuit (figure 3), le râteau 27 est levé au maximum, la pointe 72 de la came de quantième 20 libère le râteau 27 et la grande bascule 60 peut effectuer une chute dans le sens anti-horaire sous l'effet de son ressort 70 jusqu'à ce qu'elle entre en contact avec une goupille 73 en effectuant un déplacement angulaire rapide suivant un sens de rotation antihoraire autour de l'axe 61.When just before midnight ( figure 3 ), the rake 27 is raised to the maximum, the tip 72 of the date cam 20 releases the rake 27 and the large latch 60 can fall in the counterclockwise direction under the effect of its spring 70 until it comes into contact with a pin 73 by making a rapid angular displacement in a counterclockwise direction of rotation about the axis 61.

La grande bascule 60 est en outre munie d'une denture 74 engrenant avec un pignon 75 qui fait office de régulateur et de dissipateur d'énergie, de façon à régler et modérer la vitesse de la chute en sens anti-horaire de la grande bascule.The large flip-flop 60 is further provided with a toothing 74 meshing with a pinion 75 which acts as a regulator and energy dissipator, so as to regulate and moderate the speed of the anti-clockwise drop of the large scale. .

Le réglage de ce régulateur peut se faire de plusieurs façons, par le rajout d'un ressort de friction, en augmentant ou en diminuant la masse donc l'inertie ou encore en travaillant sur les profils des dentures pour avoir un rendement d'engrenage différent pour chaque dent et profil.The adjustment of this regulator can be done in several ways, by the addition of a friction spring, increasing or decreasing the mass so the inertia or by working on the profiles of the teeth to have a different gear output for each tooth and profile.

Ainsi, lors d'une phase inactive (figures 1, 2 et 4), le levier des mois 45 et la grande bascule 60 occupent journellement juste après minuit une position de repos pendant laquelle le levier des mois 45 relève le nombre de jours du mois en cours. Pendant cette phase inactive le râteau 27 effectue une course à vide sur une distance prédéterminée avant d'entrer en contact avec le levier des mois 45, cette distance active étant variable et une fonction du nombre de jours du mois en cours.Thus, during an inactive phase ( figures 1 , 2 and 4 ), the month 45 lever and the big latch 60 occupy daily just after midnight a rest position during which the lever of the month 45 raises the number of days of the current month. During this idle phase the rake 27 performs a no-load run for a predetermined distance before coming into contact with the month lever 45, this active distance being variable and a function of the number of days of the current month.

Pendant la phase active qui suit, la grande bascule 60 est entraînée par l'intermédiaire du levier des mois 45 suivant un mouvement de rotation horaire dont l'amplitude est une fonction dudit nombre de jours du mois en cours. Ensuite la grande bascule 60 effectue une chute en sens inverse à la fin de cette phase active en entraînant l'ensemble des mécanismes d'affichage.During the active phase that follows, the large flip-flop 60 is driven via the lever of the months 45 in a clockwise rotational movement whose amplitude is a function of the said number of days of the current month. Then the large latch 60 performs a fall in the opposite direction at the end of this active phase by driving all the display mechanisms.

En référence aux figures 1 et 8, le mécanisme d'affichage de quantième 12 comprend un indicateur de quantième 77 constitué par une pièce annulaire 78 rotative montée tournante sur la planche de calendrier 28 grâce à des galets 79.With reference to figures 1 and 8 , the date display mechanism 12 comprises a date indicator 77 constituted by a rotating annular piece 78 rotatably mounted on the calendar board 28 by means of rollers 79.

Cette pièce annulaire 78 porte des inscriptions 81 de quantième 1 à 31 sur sa face frontale. Ces inscriptions 81 sont de grande taille et visibles dans un guichet de quantième 80 qui est d'une taille plus grande que le guichet des mois 53 et situé à 12 heures.This annular piece 78 has 81 inscriptions of date 1 to 31 on its front face. These inscriptions 81 are large and visible in a date window 80 which is larger than the window 53 months and located at 12 o'clock.

La pièce annulaire 78 est munie sur sa face postérieure d'une denture 83 qui a la particularité d'être intérieure et non traversante sous forme de creusures. Ainsi, les inscriptions 1 à 31 sur la face antérieure peuvent être de grande taille pour une largeur donnée de la pièce annulaire 78. En outre, cela permet un montage et un démontage facilités du mécanisme de calendrier.The annular piece 78 is provided on its rear face with a set of teeth 83 which has the particularity of being internal and not traversing in the form of recesses. Thus, inscriptions 1 to 31 on the anterior surface may be large for a given width of the annular piece 78. In addition, this allows easy assembly and disassembly of the calendar mechanism.

Un cliquet de grande bascule 85 (figures 1 et 8) est monté pivotant sur la grande bascule 60 grâce à un axe 87 et agencé de façon à coopérer avec la denture 83 de la pièce annulaire 78 pour faire sauter journellement l'indicateur de quantième 77 d'un seul pas lors de la chute de la grande bascule 60, quelle que soit l'amplitude du mouvement de rotation de la grande bascule 60.A big rocker ratchet 85 ( figures 1 and 8 ) is pivotally mounted on the large rocker 60 by means of a shaft 87 and arranged to cooperate with the toothing 83 of the annular piece 78 to blow the date indicator 77 daily by a single step during the fall of the large flip-flop 60, regardless of the amplitude of the rotational movement of the large flip-flop 60.

Un ressort de rappel 88 monté sur la grande bascule est agencé pour solliciter, dans la position de repos, le cliquet de grande bascule 85 contre une goupille 89 chassée dans la grande bascule 85.A return spring 88 mounted on the large rocker is arranged to urge, in the rest position, the big rocker pawl 85 against a pin 89 driven into the large rocker 85.

Le mécanisme d'affichage de quantième 12 comprend en outre un sautoir de quantième 90 (figure 1) agencé de façon à coopérer avec la denture 83 de la pièce annulaire 78 grâce à l'action d'un ressort 91. Du fait de la place disponible entre deux dents de la denture 83, ce sautoir 90 possède trois flancs fonctionnels.The date display mechanism 12 further comprises a date jumper 90 ( figure 1 ) arranged to cooperate with the toothing 83 of the annular piece 78 by the action of a spring 91. Because of the space available between two teeth of the toothing 83, the jumper 90 has three functional flanks.

Deux flancs 92, 93 sont orientés pour repositionner la pièce annulaire 78 avec un angle de glissement favorable et constant. Un troisième flanc 94 est agencé de manière que la direction de la force appliquée sur les dents de la denture 83 passe par le centre de l'axe de rotation 96 du sautoir de quantième 90. Les flancs 95 des dents de la denture 83 visent le centre de rotation 62 de la pièce annulaire 78.Two flanks 92, 93 are oriented to reposition the annular piece 78 with a favorable and constant sliding angle. A third sidewall 94 is arranged in such a way that the direction of the force applied to the teeth of the toothing 83 passes through the center of the axis of rotation 96 of the date jumper 90. The sidewalls 95 of the teeth of the toothing 83 are aimed at the center of rotation 62 of the annular piece 78.

Le mécanisme de calendrier 11 présente en outre un doigt des mois 100 qui est articulé suivant un axe 101 sur la grande bascule 60 (figures 1, 7, 8 et 9). Ce doigt est muni dans sa partie médiane d'une portion en saillie sous forme d'une goupille 102 agencée pour coopérer avec une périphérie extérieure 105 formant un bord cylindrique de la denture 83 et avec une encoche 103 prévue dans cette périphérie 105. Le doigt des mois présente à cet effet un prolongement élastique 115 destiné à solliciter la goupille 102 contre ladite périphérie 105 et, en fin de mois, dans l'encoche 103 qui est indexée avec les dents de la denture 83 de l'indicateur de quantième 77 (figure 8).The calendar mechanism 11 also has a finger 100 months which is articulated along an axis 101 on the large flip-flop 60 ( figures 1 , 7 , 8 and 9 ). This finger is provided in its middle part with a protruding portion in the form of a pin 102 arranged to cooperate with an outer periphery 105 forming a cylindrical edge of the toothing 83 and with a notch 103 provided in this periphery 105. The finger months for this purpose an elastic extension 115 for biasing the pin 102 against said periphery 105 and, at the end of the month, in the notch 103 which is indexed with the teeth of the toothing 83 of the date indicator 77 ( figure 8 ).

Lorsque la grande bascule 60 se lève, la goupille 102 va tomber le dernier jour du mois dans l'encoche 103 juste avant minuit (figure 3). Ensuite le doigt des mois 100 entraîné par la chute de la grande bascule 60 va faire sauter l'indicateur de quantième 77 de quatre pas pour le 28 février, de trois pas pour le 29 février et de deux pas pour un mois de 30 jours, conformément à l'amplitude du mouvement de la grande bascule 60 déterminée par la position du levier des mois 45 sur la came des mois 30 lors de ladite position de repos. Plus la grande bascule 60 se lève longtemps, plus elle va chercher loin l'encoche 103 avec le doigt des mois 100 et plus elle va faire sauter un nombre de pas important à l'indicateur de quantième 77. Le doigt des mois 100 a donc la fonction de réaliser le rattrapage des jours en fin de mois sur l'indicateur de quantième 77.When the big latch 60 rises, the pin 102 will fall on the last day of the month in the notch 103 just before midnight ( figure 3 ). Then the finger of 100 months driven by the fall of the big rocker 60 will blow up the date indicator 77 by four steps for February 28, three steps for February 29 and two steps for a month of 30 days, according to the amplitude of the movement of the large rocker 60 determined by the position of the lever 45 months on the cam 30 months in said rest position. The longer the big rocker 60 gets up a long time, the farther it goes to get the notch 103 with the finger of the months 100 and the more it will blow up a significant number of steps to the date indicator 77. The finger of the months 100 has therefore the function of catching the days at the end of the month on the date indicator 77.

Pour le saut des mois (figure 3), on trouve à l'extrémité du doigt des mois 100 un crochet 104. Pour tous les jours sauf le dernier jour du mois, le doigt des mois 100 et son crochet 104 restent levés grâce à la goupille 102. Le crochet 104 passe ainsi à côté de l'étoile des mois 40 sans l'entraîner lors de la chute de la grande bascule 60 à minuit.For the jump of the months ( figure 3 ), there is at the end of the finger 100 months a hook 104. For all days except the last day of the month, the finger 100 months and its hook 104 remain lifted through the pin 102. The hook 104 and passes next to the star of the 40 months without driving it during the fall of the big latch 60 at midnight.

Par contre lors du dernier jour du mois à minuit, la goupille 102 tombe dans l'encoche 103 et le crochet 104 se déplace sur une courbe telle qu'il entraîne une dent de l'étoile des mois 40 sur un pas lors de la chute de la grande bascule 60 à minuit. La came des mois 30, le disque des mois 41 et la came de quatre ans 35 sont également avancés d'un pas.On the other hand, during the last day of the month at midnight, the pin 102 falls into the notch 103 and the hook 104 moves on a curve such that it drives a tooth of the 40 month star on a step during the fall from the big latch 60 to midnight. The 30-month cam, the 41-month disc, and the four-year-old cam 35 are also advanced one step.

Le mécanisme d'affichage des jours 14 est également commandé par la grande bascule 60 (figures 1 et 9) et comprend à cet effet un doigt des jours 110 qui est monté pivotant sur la grande bascule 60 grâce au même axe 101 que le doigt des mois 100. Le doigt des jours 110 est destiné à faire sauter journellement une étoile des jours 111 d'un pas quelle que soit la course de grande bascule 60 lors de sa chute à minuit.The display mechanism of the days 14 is also controlled by the large flip-flop 60 ( figures 1 and 9 ) and comprises for this purpose a finger of the days 110 which is pivotally mounted on the large latch 60 by the same axis 101 as the finger of the month 100. The finger of the days 110 is intended to blow daily a star of the days 111 of one step regardless of the big flip 60 when falling at midnight.

Cette étoile des jours 111 est solidaire d'un disque des jours 112 portant des inscriptions de jours 113 visibles dans un troisième guichet 114 situé entre 10 et 11 heures du cadran et de plus petite taille que le guichet de quantième 80, mais de taille similaire ou identique à celle du guichet des mois 53.This star of days 111 is attached to a disc of days 112 bearing inscriptions of days 113 visible in a third window 114 located between 10 and 11 o'clock of the dial and smaller than the date window 80, but of similar size or identical to that of the window of the months 53.

L'étoile des jours 111 et le disque des jours 112 effectuent un tour par semaine. Le doigt des jours 110, respectivement le cliquet de grande bascule 85 ont la particularité de rester dans la denture de l'étoile des jours 111, respectivement de l'indicateur de quantième 77 après le saut d'un pas, ce qui permet d'éviter des sauts multiples. Ceci est également le cas pour le crochet 104 lors du premier jour du mois (figure 4).The 111 day star and the 112 day disc perform one turn per week. The finger of the days 110, respectively the big latch ratchet 85 have the peculiarity of remaining in the toothing of the star of the days 111, respectively of the date indicator 77 after the jump of a step, which makes it possible to avoid multiple jumps. This is also the case for the hook 104 on the first day of the month ( figure 4 ).

Le doigt des jours 110 est soumis à l'action d'un ressort de rappel qui est constitué par le prolongement élastique 115 du doigt des mois 100. Ainsi ce doigt des mois est conformé de façon que le bras portant le crochet 104 soit sollicité élastiquement en direction de l'étoile des mois 40, la partie médiane portant la goupille 102 soit sollicitée élastiquement en direction de l'indicateur de quantième 77 et de son encoche 103 et que son prolongement élastique 115 assure la fonction de ressort de rappel pour le doigt des jours 110. Ce doigt des mois 100 permet en outre de réaliser le rattrapage des jours en fin de mois sur l'indicateur de quantième 77 et l'avance d'un pas de l'étoile des mois 40.The finger of the days 110 is subjected to the action of a return spring which is constituted by the elastic extension 115 of the finger of the months 100. Thus this finger months is shaped so that the arm carrying the hook 104 is biased elastically in the direction of the star 40 months, the middle portion bearing the pin 102 is elastically biased towards the date indicator 77 and its notch 103 and that its elastic extension 115 provides the function of return spring for the finger days 110. This finger of the month 100 also makes it possible to make up the days at the end of the month on the date indicator 77 and the advance of a step of the star of the month 40.

Comme pour l'étoile des mois 40, l'étoile des jours 111 est soumise à l'action de deux sautoirs (figures 1 et 9), à savoir un sautoir des jours 117 avec deux flancs fonctionnels pour repositionner l'étoile des jours avec un angle de glissement favorable et constant et un sautoir des jours unidirectionnel 118 dont le flanc fonctionnel est agencé de façon que la direction de la force appliquée sur les dents de l'étoile des jours 111 passe par le centre de rotation du sautoir des jours unidirectionnel 118. Les deux sautoirs 117, 118 sont soumis à l'action de deux ressorts 119 superposés (figure 1). Les flancs des dents de l'étoile des jours 111 visent le centre de rotation de cette étoile des jours.As for the star of months 40, the star of the days 111 is subjected to the action of two jumpers ( figures 1 and 9 ), namely a jumper 117 days with two functional flanks to reposition the star of days with a favorable and constant slip angle and a jumper unidirectional days 118 whose functional flank is arranged so that the direction of the force applied on the teeth of the star of days 111 passes through the center of rotation of the jumper of unidirectional days 118. The two jumpers 117, 118 are subjected to the action of two springs 119 superimposed ( figure 1 ). The flanks of the teeth of the star of days 111 aim at the center of rotation of this star of days.

Ainsi les différents sautoirs 48, 49, 90, 117 et 118 permettent d'empêcher que le doigt des mois 100, le cliquet de grande bascule 85 et le doigt des jours 110 entraînent l'étoile des mois 40, l'indicateur de quantième 77 et l'étoile des jours 111 lors du déplacement horaire de la grande bascule 60 et permettent ainsi d'éviter un décalage même mineur de l'affichage des inscriptions dans leurs guichets respectifs.Thus, the different jumpers 48, 49, 90, 117 and 118 make it possible to prevent the finger of the months 100, the large weighing pawl 85 and the finger of the days 110 from causing the star of the months 40, the date indicator 77 and the star of 111 days during the time shift of the large flip-flop 60 and thus avoid a shift even minor display of the inscriptions in their respective counters.

Les figures 2, 3 et 4 illustrent les déplacements des différentes pièces du mécanisme de calendrier 11 entre le 28 février et le 1er mars. La figure 2 correspond à la position lors de la première minute du lundi 28 février.
Le levier des mois 45 est mis en contact avec la came de quatre ans 35. A ce moment, sa seconde partie 66 se trouve très proche de l'entaille 69d (figure 5) de la seconde partie 68 du râteau 27. Ce dernier va donc très rapidement entraîner le levier des mois 45 et la grande bascule 60 pendant une phase active qui dure pratiquement 24 heures.The figures 2 , 3 and 4 illustrate the movements of the different parts of the calendar mechanism 11 between February 28 and March 1. The figure 2 corresponds to the position in the first minute of Monday, February 28th.
The lever of the months 45 is brought into contact with the four year old cam 35. At this moment, its second part 66 is very close to the notch 69d ( figure 5 ) of the second portion 68 of the rake 27. The latter will therefore very quickly drive the lever 45 months and the large latch 60 during an active phase that lasts for almost 24 hours.

Ainsi la grande bascule 60 a effectué en fin de journée juste avant minuit (figure 3) une rotation suivant un sens horaire d'une amplitude importante. La goupille 102 du doigt des mois 100 va tomber dans l'encoche 103 située quatre dents en arrière sur la pièce annulaire 78 pour rattraper l'indication des jours entre le 28 février et le 1er mars. A minuit précis, la came de quantième 20 libère le râteau 27 et la grande bascule 60 qui effectue alors une rotation rapide, mais contrôlée dans le sens antihoraire. L'indicateur de quantième 77 est avancé instantanément du 28 février au 1er mars (figure 4) en sautant les quantièmes 29, 30 et 31. Simultanément le disque des mois 41 et le disque des jours 112 sont avancés d'un pas.Thus, the big latch 60 performed at the end of the day just before midnight ( figure 3 ) a rotation in a clockwise direction of a large amplitude. The pin 102 of the finger months 100 will fall into the slot 103 located four back teeth on the annular member 78 to catch the indication of days between February 28 and March 1. At exactly midnight, the date cam 20 releases the rake 27 and the large latch 60 which then performs a rapid rotation, but controlled in the counterclockwise direction. The 77 calendar indicator is instantly advanced from 28 February to 1 March ( figure 4 ) jumping the dates 29, 30 and 31. Simultaneously the disc of the months 41 and the disc of the days 112 are advanced one step.

Ainsi, le râteau 27 effectue tous les jours un mouvement de rotation identique. En fonction de la position occupée par le levier des mois 45 pendant la phase inactive, la grande bascule 60 effectue tous les jours d'un mois donné un mouvement de rotation identique et fait avancer tous les jours à minuit l'indicateur de quantième 77 et le disque des jours 112 d'un pas.Thus, the rake 27 performs an identical rotational movement every day. Depending on the position occupied by the lever of the months 45 during the inactive phase, the large latch 60 carries out every day of a given month an identical rotational movement and advances every day at midnight the date indicator 77 and the disc of days 112 a step.

Lors du dernier jour du mois, la goupille 102 peut coopérer avec l'encoche 103 pour permettre le rattrapage des jours en fin de mois et pour faire avancer le disque des mois 41 d'un pas.On the last day of the month, the pin 102 can cooperate with the notch 103 to allow the catching up of the days at the end of the month and to advance the disk of the months 41 by one step.

Ainsi, grâce à ce mécanisme on obtient un saut de quantième instantané quel que soit le nombre de jours à rattraper en fin de mois. Du fait que la grande bascule est levée pendant pratiquement 24 heures pour un mois de 28 jours, on nécessite un couple minimum pour l'entraînement du mécanisme de calendrier à partir du mouvement de base.Thus, thanks to this mechanism we obtain an instantaneous date jump irrespective of the number of days to catch up at the end of the month. Since the large scale is raised for practically 24 hours for a month of 28 days, a minimum torque is required for the training of the calendar mechanism from the basic movement.

Les fonctions du quantième sont réalisées directement sur l'indicateur de quantième 77, ce qui permet de réduire le nombre de pièces en mouvement, de simplifier le mécanisme et d'en augmenter la fiabilité.The date functions are performed directly on the date indicator 77, which reduces the number of moving parts, simplify the mechanism and increase reliability.

Le mécanisme de calendrier 11 comporte en outre un affichage de quantième par guichet 80 de forme trapézoïdale de grande taille, situé à 12 heures et des affichages des mois et des jours par guichets 53, 114 de forme trapézoïdale de plus petite taille situés entre 1 et 2 heures et entre 10 et 11 heures. L'affichage ainsi obtenu est équilibré, harmonieux et très lisible.The calendar mechanism 11 further comprises a date display using a large trapezoidal aperture 80 located at 12 o'clock and displays of months and days by smaller trapezoidal counters 53, 114 located between 1 and 2 hours and between 10 and 11 hours. The display thus obtained is balanced, harmonious and very readable.

La construction de ce mécanisme de calendrier 11 à quantième perpétuel instantané est particulièrement adaptée à un montage en tant que mécanisme additionnel sur différents mouvements de base.The construction of this calendar mechanism 11 with instantaneous perpetual calendar is particularly suitable for mounting as an additional mechanism on different basic movements.

Il est bien entendu que le mode de réalisation décrit ci-dessus ne présente aucun caractère limitatif et qu'il peut recevoir toutes modifications désirables à l'intérieur du cadre tel que défini par la revendication 1. En particulier, le mécanisme de calendrier ne pourra comprendre qu'un affichage de quantième perpétuel ou non, sans affichage des jours et/ou des mois, ou encore l'affichage d'autres données, telles que les années, les 24 heures, les phases de lune ou d'autres données astronomiques.It is understood that the embodiment described above is not limiting and that it can receive any desirable modifications within the frame as defined by claim 1. In particular, the calendar mechanism can not understand whether a perpetual calendar display or not, without displaying days and / or months, or the display of other data, such as years, 24 hours, moon phases or other astronomical data .

La disposition des guichets sur le cadran pourra être différente, le quantième pourra par exemple être placé à 6 heures. Les indicateurs de quantième, des mois et/ou des jours pourront être constitués par d'autres organes, telles que des aiguilles.The arrangement of the counters on the dial may be different, the date may for example be placed at 6 o'clock. The date indicators, months and / or days may be constituted by other organs, such as needles.

Claims (15)

  1. Timepiece comprising a movement (62) and a calendar mechanism (11) with at least one date display mechanism (12) and a date indicator (77), this date indicator (77) being driven by a large yoke (60) pivoted on a fixed part (28) and capable daily to occupy a rest position, characterised in that a lever (45) of the months is pivoted on large yoke (60) and includes a first segment (65) intended to come in contact with a cam (30) of the months that performs one full turn per year so that during said position of rest it daily records the number of days of the current month, and a second segment (66) capable daily during an active phase to come in contact with a driving rack (27) pivoted on said fixed part (28) and set in motion by a driving cam (20) that performs one full turn per day, rack (27) and lever (45) of the months being arranged in such a way that rack (27) during a passive phase performs an idle run covering a predetermined distance prior to coming in contact with said second segment (66) during said active phase, this predetermined distance being variable and a function of the number of days of the current month, so that large yoke (60) during said active phase is driven by lever (45) of the months to rotate in a first direction with an amplitude that is a function of said number of days of the current month, large yoke (60) dropping in the opposite direction at the end of this active phase while driving said date indicator (77).
  2. Timepiece according to claim 1, characterised in that rack (27) and lever (45) of the months are arranged in such a way that said idle run is minimal for the months of 28 days, and maximal for those of 31 days, so that large yoke (60) is lifted against the action of a return spring (70) during said active phase approaching 24 hours during the months of 28 days.
  3. Timepiece according to claim 2, characterized in that date indicator (77) consists of a rotatable annular part (78) inscribed with the dates from 1 to 31, this annular part (78) including teeth (83) cooperating with a pawl (85) of the large yoke that is pivoted on large yoke (60) in such a way that this pawl (85) of the large yoke causes date indicator (77) to jump by only a single step per day during the drop of large yoke (60) regardless of said amplitude of rotary motion of the large yoke.
  4. Time piece according to claim 3, characterised in that large yoke (60) is provided with a finger (100) of the months that includes a projecting portion (102) elastically pushed against a segment (105) of annular part (78) that has a nick (103) into which projecting portion (102) falls at the end of each month, so that during its drop large yoke (60) via its finger (100) of the months causes annular part (78) to advance so that at the end of each month it catches up with the days between the last day of the month concerned and the first day of the following month.
  5. Timepiece according to claim 4, characterised in that calendar mechanism (11) in addition comprises a month display mechanism (13) including an indicator (41) of the months that is integral with cam (30) of the months and with a star (40) of the months, said finger (100) of the months being provided with a hook (104) arranged to cooperate with star (40) of the months at the end of each month while its projecting portion (102) has dropped into nick (103) in order to rotate star (40) of the months by one step during the drop of large yoke (60).
  6. Timepiece according to claim 3, characterised in that teeth (83) of annular part (78) are realised on a rear face of annular part (78) without traversing it, so that date insciptions (81) of a large size may be realised on a front face of this annular part (78).
  7. Timepiece according to claim 1, characterised in that calendar mechanism (11) comprises a day display mechanism (14) including an indicator (112) of the days integral with a star (111) of the days, large yoke (60) being provided with a day finger (110) pivoted so as to cause day star (111) to daily jump by a single step during the drop of large yoke (60) regardless of the amplitude of the yoke's rotary motion.
  8. Time piece according to claim 1, characterised in that driving rack (27) and large yoke (60) are mounted on said fixed segment (28) so as to pivot around the same axis of rotation (61) that is set up close to the centre of the movement (62).
  9. Timepiece according to claim 1, characterised in that driving rack (27) and lever (45) of the months are linked by a spring (64) arranged so that it pushes driving rack (27) against driving cam (20), and lever (45) of the months against cam (30) of the months.
  10. Timepiece according to claim 5 and 7, characterised in that finger (100) of the months comprises elastic means (115) designed so that a first segment holding hook (104) is elastically pushed in the direction of star (40) of the months while a second segment holding projecting portion (102) is elastically pushed in the direction of said nick (103), in such a way that the function of a return spring is secured for finger (110) of the days.
  11. Timepiece according to claim 1, characterised in that calendar mechanism (11) comprises a date driving wheel (18) performing one full turn per day in a first direction of rotation around an arbor (21) onto which driving cam (20) is mounted free in rotation, a date finger (22) being pivoted on this driving cam (20) and, for driving of driving cam (20) in said first direction of rotation, elastically pushed into a nick (25) of date driving wheel (18) in such a way that date finger (22) will be able to leave nick (25) when date driving wheel (18) is rotated in an opposite direction of rotation while the time is set back.
  12. Timepiece according to claim 3, characterised in that it comprises a date jumper spring (90) arranged so that it cooperates with teeth (83) of the annular part (78), and includes three working flanks, two (92, 93) of which oriented so as to reposition annular part (78) with a favorable slip angle, and a third one (94) arranged so that the direction of the force applied to said teeth (83) passes through the centre of the axis of rotation (96) of date jumper spring (90).
  13. Timepiece according to claims 5 and 7, characterised in that calendar mechanism (11) comprises two jumper springs (48, 49) associated with star (40) of the months, and two jumper springs (117, 118) associated with star (111) of the days, a first one (48, 117) of any of the two jumper springs including two working flanks oriented so as to reposition star (40) of the months and star (111) of the days, respectively, with a favorable slip angle, a second one (49, 118) of any of the two jumper springs including a third flank arranged so that the direction of the force applied to the teeth of star (40) of the months and of star (111) of the days, respectively, passes through the centre of the axes of rotation of the second jumper springs (49, 118).
  14. Timepiece according to claim 1, characterised in that large yoke (60) is provided with teeth (74) engaged with a pinion (75) acting as an energy dissipator so as to regulate and moderate the speed with which large yoke (60) drops in the opposite direction.
  15. Timepiece according to claim 1, characterised in that calendar mechanism (11) includes a date display in a window (80) larger in size than the windows (53, 114) for display of the months and days set up between 1 and 2 o'clock and between 10 and 11 o'clock, respectively, and having an identical or similar size.
EP05012721A 2005-06-14 2005-06-14 Timepiece with calendar mechanismus Active EP1734419B1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP05012721A EP1734419B1 (en) 2005-06-14 2005-06-14 Timepiece with calendar mechanismus
AT05012721T ATE395637T1 (en) 2005-06-14 2005-06-14 WATCH WITH CALENDAR MECHANISM
DE602005006774T DE602005006774D1 (en) 2005-06-14 2005-06-14 Clock with calendar mechanism
HK07101204A HK1094468A1 (en) 2005-06-14 2007-02-01 Timepiece with calendar mechanismus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP05012721A EP1734419B1 (en) 2005-06-14 2005-06-14 Timepiece with calendar mechanismus

Publications (2)

Publication Number Publication Date
EP1734419A1 EP1734419A1 (en) 2006-12-20
EP1734419B1 true EP1734419B1 (en) 2008-05-14

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP05012721A Active EP1734419B1 (en) 2005-06-14 2005-06-14 Timepiece with calendar mechanismus

Country Status (4)

Country Link
EP (1) EP1734419B1 (en)
AT (1) ATE395637T1 (en)
DE (1) DE602005006774D1 (en)
HK (1) HK1094468A1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH705710B1 (en) * 2007-07-04 2013-05-15 Patek Philippe Sa Geneve An actuator in the fall of great control rocker displaying an instantaneous a timepiece equipped with a perpetual calendar mechanism or secular.
EP2428855B1 (en) 2010-09-08 2019-07-03 Rolex S.A. Clock piece fitted with a device for displaying predetermined time periods

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE205445C (en) *
CH660440GA3 (en) * 1985-01-23 1987-04-30 Dubois & Depraz Sa Perpetual calendar mechanism

Also Published As

Publication number Publication date
HK1094468A1 (en) 2007-03-30
DE602005006774D1 (en) 2008-06-26
ATE395637T1 (en) 2008-05-15
EP1734419A1 (en) 2006-12-20

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