EP2820486B1 - Universal running equation of time mechanism, and method for setting such a mechanism - Google Patents

Universal running equation of time mechanism, and method for setting such a mechanism Download PDF

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Publication number
EP2820486B1
EP2820486B1 EP13705760.0A EP13705760A EP2820486B1 EP 2820486 B1 EP2820486 B1 EP 2820486B1 EP 13705760 A EP13705760 A EP 13705760A EP 2820486 B1 EP2820486 B1 EP 2820486B1
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European Patent Office
Prior art keywords
time
equation
civil
true
minute
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German (de)
French (fr)
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EP2820486A1 (en
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Marco Rochat
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Blancpain SA
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Blancpain SA
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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
    • G04B19/26—Clocks or watches with indicators for tides, for the phases of the moon, or the like
    • G04B19/262—Clocks or watches with indicators for tides, for the phases of the moon, or the like with indicators for astrological informations
    • 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
    • G04B19/22—Arrangements for indicating different local apparent times; Universal time pieces
    • G04B19/23—Arrangements for indicating different local apparent times; Universal time pieces by means of additional hands or additional pairs of hands
    • 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
    • G04B19/22—Arrangements for indicating different local apparent times; Universal time pieces
    • G04B19/23—Arrangements for indicating different local apparent times; Universal time pieces by means of additional hands or additional pairs of hands
    • G04B19/235—Arrangements for indicating different local apparent times; Universal time pieces by means of additional hands or additional pairs of hands mechanisms for correcting the additional hand or hands

Definitions

  • the present invention relates to a universal walking equation. More specifically, the present invention relates to such a walking equation that indicates precisely the time when the sun is at the zenith regardless of the position, in longitude, the wearer of the watch.
  • the sun In the same time zone, the sun is not at the zenith at the same time depending on whether one is at the extreme east, the center or the extreme west of this time zone. Between the two extreme positions, the time difference is 59 minutes.
  • the equation cam of time 1 is rotated at the rate of one revolution per year from the simple or perpetual calendar mechanism that includes the timepiece.
  • the cam 1 carries a disk of months 2 which rotates at the same speed as it and which makes it possible to make the position of said cam 1 coincide with the date indicated by the date mechanism so that the minute hand of the solar time 4 indicates the exact solar time.
  • the date mechanism simple or perpetual, can be of any known type and will not be described here in its entirety. For a good understanding, it suffices to know that this date mechanism drives the equation cam of time 1 at the rate of one complete revolution per year. However, it is shown, for illustrative purposes only, a date mobile 6 driving a needle 8 which indicates the date (1 to 31). This mobile date of 6 rotates at a rate of one complete turn per month. It is actuated by the date mechanism via an intermediate date wheel 10 for reversing the direction of rotation, and a reduction wheel 12 which reduces the speed of rotation of a complete revolution per month to a lap complete per year.
  • the minute hand of the solar time 4 is driven by a differential gear 14 which has respective inputs a gear train 16 driving a minute hand of the civil time 18 and a rake 20 which cooperates with the equation cam time 1 (the rake 20 is represented on the figure 1 in its two extreme positions, once in solid lines and the other time in dashed lines).
  • the differential gear 14 comprises at least one, and preferably two satellites 22 driven by the timer of the watch movement of the watch. These two satellites 22 are able to turn on themselves and to roll on the internal toothing 24 of an equation wheel of time 26.
  • the latter also has on its outer periphery a toothed sector 28 by which it cooperates with a sector toothed 30 that has the rake 20 at one of its ends.
  • This rake is subjected to the return action of a spring (not shown) fixed on the frame of the watch and which tends to apply a feeler 32 forming the other end of said rake 20 against the periphery of the equation cam 1.
  • the solar weather display gear comprises a pinion 34 placed in the center of the differential gear 14 and carried by an axis 36.
  • This sun time display pinion 34 meshes with the planet gears 22.
  • it carries a display wheel 38 which meshes with a roadway 40 on the barrel from which the minute hand of solar time 4 is driven.
  • This wheel 38, 40 makes it possible to reduce the display of the time. solar in the center 42 of the clockwork movement of the watch, so that the minute hand of the solar time 4 is concentric with the minute hand of the civil time 18.
  • the equation cam of time 1, the time equation rake 20 and thus the equation of time equation 26 are immobile.
  • the planet gears 22 are driven by the watch movement of the watch. They therefore rotate on themselves and roll on the internal toothing 24 of the equation wheel of time 26, driving the pinion 34 to display the solar time in rotation, which allows the minute hand of the solar time 4 to rotate concomitantly with the minute hand of civil time 18.
  • the gap between the solar time hand 4 and the civil time needle 18 remains constant over a period of 24 hours.
  • the equation cam of walking time 1 rotates, driven by the date mechanism that shifts the calendar from one day to the next.
  • the feeler 32 which is in contact with the periphery of the cam 1 in turn rotates the rake 20.
  • Said rake 20 by pivoting, drives the equation wheel of the time 26 in rotation.
  • the planet gears 22 being substantially immobile (they make a complete revolution in 1 hour), turn on themselves while being rotated by the equation wheel of the time 26, and cause them to rotate. turn the display pinion of the solar time 34 so as to adjust again exactly the position of the minute hand of the solar time 4.
  • the walking time equation mechanism described above thus allows, by means of a minute hand of the civil time and a minute hand of the solar time, to display at any time the time difference between the mean solar time and the true time.
  • This equation of walking time equation does not allow to indicate the civil time at which the sun is at the zenith according to the position, in longitude, of the user in the time zone.
  • EP1637941 A1 discloses a walking time equation mechanism according to the preamble of claim 1 attached to this patent application.
  • the present invention aims to overcome this problem by providing a walking time equation mechanism capable of indicating at any time and regardless of the position in longitude of the user in the time zone the difference in hours and hours. minutes between the civil time and the true time.
  • the present invention relates to a universal walking time equation mechanism according to claim 1.
  • the present invention provides a universal walking time equation mechanism not only capable of displaying the gap between solar time and civil time, but still capable of taking into account the gap between solar time. and the civil time inherent in the user's longitude position relative to the center of the time zone.
  • the equation mechanism of the universal walking time according to the invention makes it possible to display at any moment the difference in hours and minutes between the civil time at the location of the user's time zone and the solar time.
  • the invention also relates to a method of assembling said mechanism according to the appended claim 5.
  • the present invention proceeds from the general inventive idea of providing an equation mechanism of the universal walking time which, for the display of solar time, takes into account the difference between the civil minute and the solar minute, the difference in the longitude position of the user relative to the center of the time zone, and the deviation from any discrepancy between the civil time of the user's location and the official time in the center of the time zone; time zone.
  • FIGS. 4A, 4B and 4C illustrate a first embodiment of the universal walking equation mechanism according to the invention.
  • FIGS. 5A, 5B and 5C illustrate a second embodiment of the universal walking equation mechanism according to the invention.
  • the Figure 4A is a schematic representation of a walking equation mechanism according to the prior art comprising a differential device 44 which has for respective entries a roadway 46 driving a minute hand of the civil time 48 and a weather equation cam 50. At the output, the differential device 44 causes one minute of walking equation 52. As already mentioned above, the minute of walking equation 52 indicates the difference, for a given day, between the civil time and the solar time. This difference between the civil time and the solar time reaches +14 min 22 s on February 11, and -16 min 23 s on November 4.
  • the width of a time zone is 15 °, which corresponds to a duration of one hour, so that the sun enters the time zone 30 minutes before the official time of the spindle and comes out 30 minutes after the official time of the spindle.
  • the minute of walking equation 52 causes friction 54 (lanterning) a true minute of walking equation 56.
  • This true minute of walking equation 56 differs from the minute of walking equation 52 in it takes into account not only the difference, for a given day, between calendar time and solar time, but also the position in longitude of the user in the time zone.
  • the true minute of running equation 56 in turn causes, through a timer of true equation 58, a true hour of running equation 60.
  • a user-drivable train 62 is coupled to the true equation timer 58.
  • the gear train 62 is coupled directly to the true minute of walking equation 56.
  • This gear train 62 shifts the true minute and hour of equation respectively marching 56, 60 depending on the position in longitude of the user in the time zone.
  • the gear train 62 carries one or two indications.
  • a first wheel 64 of the train 62 has the indication ⁇ 7.5 ° of the offset of the position of the user relative to the center of the time zone (knowing that each time zone has 15 °) and, optionally, another wheel 66 of the gear train 62 may carry an East or West indication of the offset from the center of the time zone.
  • the carriageway 46 carrying the civil minute 48 causes, in a ratio of 1/12, via a timer mobile 68, a civil hour wheel 70.
  • This civilian hours wheel 70 carries a jumper 72 resulting in a star of twelve teeth 74 linked to an axis 76 carrying a calendar hour hand 78 and a spindle wheel 80 having the same number of teeth as the calendar hour wheel 70.
  • the watch according to the invention is equipped with at least one winding stem (not shown) which, in a retracted position, allows the watch to be reassembled and which, in a first drawn position, makes it possible to adjust the date indication. .
  • the winding stem makes it possible to adjust the difference between the civil time at the location of the wearer of the watch and the official time in the center of the spindle. time and, in a third position drawn T3, the winding stem allows the time setting of the watch, that is to say the setting of the watch at the time of the place where the user is located. the watch.
  • the time setting of the watch is done by the winding stem in position T3 and via the mobile timer 68.
  • the mobile of timer 68 acts on the mobile timer 68 to bring the minute civil 48 and civil time 78 for example at noon.
  • the mobile of timer 68 causes the road 46 which, remember, is one of the inputs of the differential device 44. Therefore, the rotation of the roadway 46 causes the rotation of the minute of walking equation 52 which in turn causes the minute true of walking equation 56 and the true hour of walking equation 60.
  • the time of the switching that is to say during the assembly of the different needles in the factory, one makes sure that bring the date mechanism to one of the four days of the year when the difference between calendar time and solar time is zero. In this case, when bringing the civil minute 48 and the civil hour 78 at noon by means of the winding stem in position T3, the true hour of equation marching 60 and the true minute of equation marching 60 also place at noon.
  • the difference between the minute of the civil time and the minute of the solar time was successively programmed, then the difference related to the positioning in longitude of the user in the time zone, and finally the difference between the time where the watch user is and the official time in the center of the time zone.
  • All that remains now is to set the calendar time of the watch to coincide with the time of the location of the time zone where the user of the watch is located. This setting is done by a new operation of the winding stem in position T3.
  • we set displaying the civil minute 48 and the civil time 78 so that these hands display the civil time of the location where the user is.
  • the true hour of walking equation 60 and the actual minute of moving equation 56 move in the same direction and of the same amount as the civil minute 48 and the civil time 78.
  • the watch displays the civil time and the gap between the civil time and the true solar time.
  • FIGS. 5A, 5B and 5C appended to this patent application illustrate a second embodiment of the universal equation walking mechanism according to the invention.
  • This second embodiment of the invention is distinguished from the first embodiment of the invention illustrated in connection with the Figures 4A, 4B and 4C that in that it is planned to chase a minute hand of the true time 82 on the barrel of the roadway 56 from the true minute of walking equation.
  • This true time minute handwheel 82 moves over a shift indicator disc 84 driven out of the carriage borehole of the running equation minute 52.
  • This shift indicator disc 84 has the indication ⁇ 7, 5 ° the offset of the position of the user relative to the center of the time zone (knowing that each time zone counts 15 °) and the East or West indication of the offset from the center of the time zone.
  • the true time minute hand pointer 82 points to the zero mark of the shift indicator disc 84. It is also understood that the minute hand of time true 82 and the shift indicator disc 84 are shifted substantially ⁇ 15 min relative to the minute hand of the civil time 48 to indicate the deviation, for a given day, between the civil time and the solar time. This difference between the civil time and the solar time reaches +14 min 22 s on February 11, and -16 min 23 s on November 4.
  • the minute hand of the true time 82 is actuated independently of the shift indicator disc 84 to program, by means of the shift gear wheel 62 and display, the offset in East or West longitude related to the user's position relative to the center of the time zone. For example, suppose we are on June 21st. At this date, we know that the minute of the civil time is two minutes ahead of the minute of solar time. Therefore, if the civilian time minute hand 48 points to the zero scale, the true time minute handpiece 82 and the offset indicator disc 84 will indicate an offset of -2 min.
  • the user acts only on the minute hand of the true time 82 to bring it to the 4 ° position of longitude East on the shift indicator disc 84. Therefore, if the user is a 21 June at 4 ° East longitude relative to the center of the time zone, the minute hand of the civil time 48 will be zero, the zero of the shift indicator disc 84 will be shifted -2 min relative to the minute hand of the civil time 48 and the minute hand of the true time 82 will be offset by 4 ° east longitude relative to the indicator disc of offset 84, that is to say + 16 min. In the end, the minute hand of the true time 82 will be shifted +14 min relative to the minute hand of the civil time 48.
  • the winding stem in the position T3 of the winding stem, it acts on the civil minute 48 and the civil time 78.
  • the winding stem comprises a sliding pinion which comes to act through a first gear on the mobile timer 68.
  • T2 position of the winding stem we introduce the shift between the time of the place where we are and the official time of the spindle.
  • the sliding pinion of the winding stem acts via a second wheel on the spindle wheel 80.

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  • General Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • Electromechanical Clocks (AREA)
  • Electric Clocks (AREA)

Description

La présente invention a pour objet une équation marchante universelle. Plus précisément, la présente invention a pour objet une telle équation marchante qui indique précisément l'heure à laquelle le soleil est au zénith quelle que soit la position, en longitude, du porteur de la montre.The present invention relates to a universal walking equation. More specifically, the present invention relates to such a walking equation that indicates precisely the time when the sun is at the zenith regardless of the position, in longitude, the wearer of the watch.

Dans un même fuseau horaire, le soleil n'est pas au zénith à la même heure selon que l'on se trouve à l'extrême est, au centre ou à l'extrême ouest de ce fuseau. Entre les deux positions extrêmes, l'écart de temps est de 59 minutes.In the same time zone, the sun is not at the zenith at the same time depending on whether one is at the extreme east, the center or the extreme west of this time zone. Between the two extreme positions, the time difference is 59 minutes.

D'autre part, il se peut que le pays dans lequel se trouve l'utilisateur ne soit pas aligné sur l'heure officielle du fuseau. Ceci est par exemple le cas de la Suisse qui, bien que se trouvant dans le fuseau de Greenwich, compte une heure d'écart avec l'Angleterre.On the other hand, it is possible that the country in which the user is located is not aligned with the official time of the time zone. This is for example the case of Switzerland which, although being in the time zone of Greenwich, counts one hour of gap with England.

D'autres pays possèdent une seule heure officielle mais leur territoire couvre pourtant plusieurs fuseaux horaires.Other countries have only one official time but their territory covers several time zones.

Enfin, certains pays changent d'heure selon la saison (heure d'été/heure d'hiver).Finally, some countries change their time according to the season (summer time / winter time).

A titre d'exemple, pour quelqu'un se trouvant à Neuchâtel (Suisse) le 23 juillet, le soleil sera au zénith à 14h38 heure civile, soit: 12 heures (heure du fuseau), + 2 heures (heure d'été) -28 minutes (longitude de Neuchâtel: 7°) +6 minutes (écart de l'équation marchante). Au contraire, pour quelqu'un se trouvant à Londres le même jour, le soleil sera au zénith à 13h06 heure civile, soit: 12 heures (heure du fuseau) +1 heure (heure d'été) +0 minutes (longitude de Londres: 0°) +6 minutes (écart de l'équation marchante). Or, Neuchâtel et Londres se trouvent dans le même fuseau horaire.For example, for someone in Neuchâtel (Switzerland) on July 23, the sun will be at the zenith at 2:38 pm, that is: 12 hours (time spindle), + 2 hours (summer time) -28 minutes (Neuchâtel longitude: 7 °) +6 minutes (distance from the walking equation). On the contrary, for someone in London on the same day, the sun will be at zenith at 1:06 pm (local time): 12 hours (time) +1 hour (summer time) +0 minutes (longitude of London) : 0 °) +6 minutes (difference of the equation walking). Neuchâtel and London are in the same time zone.

Les figures 1, 2 et 3 annexées à la présente demande de brevet illustrent le dispositif de différentiel selon l'art antérieur auquel s'applique le mécanisme d'équation marchante universelle selon l'invention.The figures 1 , 2 and 3 appended to this patent application illustrate the differential device according to the prior art to which applies the universal walking equation mechanism according to the invention.

Ce dispositif différentiel est décrit en détail dans la demande de brevet européen EP 1 286 233 au nom de la demanderesse. Rappelons que sur les figures 1, 2 et 3 annexées à la présente demande de brevet et reprises de la demande de brevet européen mentionnée ci-dessus, on voit notamment la came d'équation du temps 1 dont le profil est déterminé par la différence, pour chaque jour de l'année, entre le temps solaire moyen ou temps civil et le temps solaire vrai.This differential device is described in detail in the European patent application EP 1 286 233 in the name of the plaintiff. Recall that on figures 1 , 2 and 3 annexed to the present patent application and taken from the aforementioned European patent application, one sees in particular the time equation cam 1 whose profile is determined by the difference, for each day of the year, between the mean solar time or civil time and true solar time.

En effet, comme on le sait, il existe un écart entre le temps solaire vrai qui correspond à la durée qui s'écoule entre deux passages supérieurs consécutifs du soleil au méridien d'un même lieu, et le temps solaire moyen ou temps civil qui est la moyenne, faite sur l'année, de la durée de tous les jours solaires vrais. Cette différence entre le temps civil et le temps vrai atteint +14 min 22 s le 11 février, et -16 min 23 s le 4 novembre. Ces valeurs varient peu d'année en année.Indeed, as we know, there is a gap between the true solar time which corresponds to the duration which elapses between two consecutive consecutive passes of the sun to the meridian of the same place, and the average solar time or civil time which is the average, over the year, of the duration of all true solar days. This difference between the civil time and the true time reaches +14 min 22 s on February 11, and -16 min 23 s on November 4. These values vary little from year to year.

La came d'équation du temps 1 est entraînée en rotation à raison d'une révolution par an à partir du mécanisme de quantième simple ou perpétuel que comporte la pièce d'horlogerie. La came 1 porte un disque des mois 2 qui tourne à la même vitesse qu'elle et qui permet de faire coïncider la position de ladite came 1 avec la date indiquée par le mécanisme à quantième afin que l'aiguille des minutes du temps solaire 4 indique l'heure solaire exacte.The equation cam of time 1 is rotated at the rate of one revolution per year from the simple or perpetual calendar mechanism that includes the timepiece. The cam 1 carries a disk of months 2 which rotates at the same speed as it and which makes it possible to make the position of said cam 1 coincide with the date indicated by the date mechanism so that the minute hand of the solar time 4 indicates the exact solar time.

Le mécanisme de quantième, simple ou perpétuel, peut être de tout type connu et ne sera pas décrit ici dans sa totalité. Il suffit, en effet, pour une bonne compréhension, de savoir que ce mécanisme de quantième entraîne la came d'équation du temps 1 à raison d'un tour complet par an. On a cependant représenté, à titre purement illustratif seulement, un mobile de quantième 6 entraînant une aiguille 8 qui indique la date (de 1 à 31). Ce mobile de quantième 6 tourne à raison d'un tour complet par mois. Il est actionné par le mécanisme de quantième via une roue de renvoi intermédiaire de quantième 10 permettant d'inverser le sens de rotation, et un mobile de réduction 12 qui permet de réduire la vitesse de rotation d'un tour complet par mois à un tour complet par an.The date mechanism, simple or perpetual, can be of any known type and will not be described here in its entirety. For a good understanding, it suffices to know that this date mechanism drives the equation cam of time 1 at the rate of one complete revolution per year. However, it is shown, for illustrative purposes only, a date mobile 6 driving a needle 8 which indicates the date (1 to 31). This mobile date of 6 rotates at a rate of one complete turn per month. It is actuated by the date mechanism via an intermediate date wheel 10 for reversing the direction of rotation, and a reduction wheel 12 which reduces the speed of rotation of a complete revolution per month to a lap complete per year.

L'aiguille des minutes du temps solaire 4 est entraînée par un engrenage différentiel 14 qui a pour entrées respectives un rouage 16 entraînant une aiguille des minutes du temps civil 18 et un râteau 20 qui coopère avec la came d'équation temps 1 (le râteau 20 est représenté sur la figure 1 dans ses deux positions extrêmes, une fois en trait plein et l'autre fois en trait mixte). Plus précisément, comme cela est visible sur la figure 1, l'engrenage différentiel 14 comprend au moins un, et préférentiellement deux satellites 22 entraînés par la minuterie du mouvement d'horlogerie de la montre. Ces deux satellites 22 sont aptes à tourner sur eux-mêmes et à rouler sur la denture intérieure 24 d'une roue d'équation du temps 26. Cette dernière présente également sur son pourtour extérieur un secteur denté 28 par lequel elle coopère avec un secteur denté 30 que présente le râteau 20 à l'une de ses extrémités. Ce râteau est soumis à l'action de rappel d'un ressort (non représenté) fixé sur le bâti de la montre et qui tend à appliquer un palpeur 32 formant l'autre extrémité dudit râteau 20 contre la périphérie de la came d'équation marchante 1. Le rouage d'affichage du temps solaire comprend quant à lui un pignon 34 placé au centre de l'engrenage différentiel 14 et porté par un axe 36. Ce pignon d'affichage du temps solaire 34 engrène avec les pignons satellites 22. Il porte d'autre part une roue d'affichage 38 qui engrène avec une chaussée 40 sur le canon de laquelle est chassée l'aiguille des minutes du temps solaire 4. Ce rouage 38, 40 permet de ramener l'affichage de l'heure solaire au centre 42 du mouvement d'horlogerie de la montre, de façon à ce que l'aiguille des minutes du temps solaire 4 soit concentrique à l'aiguille des minutes du temps civil 18.The minute hand of the solar time 4 is driven by a differential gear 14 which has respective inputs a gear train 16 driving a minute hand of the civil time 18 and a rake 20 which cooperates with the equation cam time 1 (the rake 20 is represented on the figure 1 in its two extreme positions, once in solid lines and the other time in dashed lines). More precisely, as is visible on the figure 1 , the differential gear 14 comprises at least one, and preferably two satellites 22 driven by the timer of the watch movement of the watch. These two satellites 22 are able to turn on themselves and to roll on the internal toothing 24 of an equation wheel of time 26. The latter also has on its outer periphery a toothed sector 28 by which it cooperates with a sector toothed 30 that has the rake 20 at one of its ends. This rake is subjected to the return action of a spring (not shown) fixed on the frame of the watch and which tends to apply a feeler 32 forming the other end of said rake 20 against the periphery of the equation cam 1. The solar weather display gear comprises a pinion 34 placed in the center of the differential gear 14 and carried by an axis 36. This sun time display pinion 34 meshes with the planet gears 22. On the other hand, it carries a display wheel 38 which meshes with a roadway 40 on the barrel from which the minute hand of solar time 4 is driven. This wheel 38, 40 makes it possible to reduce the display of the time. solar in the center 42 of the clockwork movement of the watch, so that the minute hand of the solar time 4 is concentric with the minute hand of the civil time 18.

Le mécanisme d'équation du temps marchante qui vient d'être décrit fonctionne de la manière suivante.The walking time equation mechanism just described works as follows.

En régime de fonctionnement normal de la montre, la came d'équation du temps 1, le râteau d'équation du temps 20 et donc le rouage d'équation du temps 26 sont immobiles. Par contre, les pignons satellites 22 sont entraînés par le mouvement d'horlogerie de la montre. Ils tournent donc sur eux-mêmes et roulent sur la denture intérieure 24 de la roue d'équation du temps 26, entraînant le pignon 34 d'affichage du temps solaire en rotation, ce qui permet à l'aiguille des minutes du temps solaire 4 de tourner de façon concomitante à l'aiguille des minutes du temps civil 18. L'écart entre l'aiguille du temps solaire 4 et l'aiguille du temps civil 18 reste donc constant sur une période de 24 heures.In normal operation of the watch, the equation cam of time 1, the time equation rake 20 and thus the equation of time equation 26 are immobile. On the other hand, the planet gears 22 are driven by the watch movement of the watch. They therefore rotate on themselves and roll on the internal toothing 24 of the equation wheel of time 26, driving the pinion 34 to display the solar time in rotation, which allows the minute hand of the solar time 4 to rotate concomitantly with the minute hand of civil time 18. The gap between the solar time hand 4 and the civil time needle 18 remains constant over a period of 24 hours.

Une fois par jour, aux environs de minuit, la came d'équation du temps marchante 1 pivote, entraînée par le mécanisme de quantième qui fait passer le calendrier d'un jour au jour suivant. A ce moment précis, le palpeur 32 qui est en contact avec la périphérie de la came 1 fait pivoter à son tour le râteau 20. Ledit râteau 20, en pivotant, entraîne la roue d'équation du temps 26 en rotation. Les pignons satellites 22 étant, durant ce bref intervalle de temps, sensiblement immobiles (ils font un tour complet en 1 heure), tournent sur eux-mêmes en étant entraînés en rotation par la roue d'équation du temps 26, et entraînent à leur tour le pignon d'affichage du temps solaire 34 de façon à ajuster de nouveau exactement la position de l'aiguille des minutes du temps solaire 4.Once a day, around midnight, the equation cam of walking time 1 rotates, driven by the date mechanism that shifts the calendar from one day to the next. At this precise moment, the feeler 32 which is in contact with the periphery of the cam 1 in turn rotates the rake 20. Said rake 20, by pivoting, drives the equation wheel of the time 26 in rotation. During this short period of time, the planet gears 22 being substantially immobile (they make a complete revolution in 1 hour), turn on themselves while being rotated by the equation wheel of the time 26, and cause them to rotate. turn the display pinion of the solar time 34 so as to adjust again exactly the position of the minute hand of the solar time 4.

Le mécanisme d'équation du temps marchante décrit ci-dessus permet donc, au moyen d'une aiguille des minutes du temps civil et d'une aiguille des minutes du temps solaire, d'afficher à tout moment l'écart de temps entre le temps solaire moyen et le temps vrai. Ce mécanisme d'équation du temps marchante ne permet cependant pas d'indiquer l'heure civile à laquelle le soleil est au zénith en fonction de la position, en longitude, de l'utilisateur dans le fuseau horaire.The walking time equation mechanism described above thus allows, by means of a minute hand of the civil time and a minute hand of the solar time, to display at any time the time difference between the mean solar time and the true time. This equation of walking time equation, however, does not allow to indicate the civil time at which the sun is at the zenith according to the position, in longitude, of the user in the time zone.

Le document EP1637941 A1 divulgue un mécanisme d'équation du temps marchante selon le préambule de la revendication 1 annexée à la présente demande de brevet.The document EP1637941 A1 discloses a walking time equation mechanism according to the preamble of claim 1 attached to this patent application.

La présente invention a pour but de pallier ce problème en procurant un mécanisme d'équation du temps marchante capable d'indiquer à tout moment et quelle que soit la position en longitude de l'utilisateur dans le fuseau horaire l'écart en heures et en minutes entre le temps civil et le temps vrai.The present invention aims to overcome this problem by providing a walking time equation mechanism capable of indicating at any time and regardless of the position in longitude of the user in the time zone the difference in hours and hours. minutes between the civil time and the true time.

A cet effet, la présente invention concerne un mécanisme d'équation du temps marchante universelle selon la revendication 1.For this purpose, the present invention relates to a universal walking time equation mechanism according to claim 1.

Grâce à ces caractéristiques, la présente invention procure un mécanisme d'équation du temps marchante universelle non seulement capable d'afficher l'écart entre le temps solaire et le temps civil, mais encore capable de prendre en compte l'écart entre le temps solaire et le temps civil inhérent à la position en longitude de l'utilisateur par rapport au centre du fuseau horaire. Ainsi, le mécanisme d'équation du temps marchante universelle selon l'invention permet d'afficher à tout instant l'écart en heures et en minutes entre l'heure civile à l'endroit du fuseau où se trouve l'utilisateur et l'heure solaire.Thanks to these features, the present invention provides a universal walking time equation mechanism not only capable of displaying the gap between solar time and civil time, but still capable of taking into account the gap between solar time. and the civil time inherent in the user's longitude position relative to the center of the time zone. Thus, the equation mechanism of the universal walking time according to the invention makes it possible to display at any moment the difference in hours and minutes between the civil time at the location of the user's time zone and the solar time.

L'invention concerne également un procédé d'assemblage dudit mécanisme selon la revendication 5 annexée.The invention also relates to a method of assembling said mechanism according to the appended claim 5.

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

  • la figure 1, déjà citée, est une vue en plan du dispositif d'équation du temps marchante auquel s'applique le mécanisme d'équation du temps marchante universelle selon l'invention;
  • la figure 2, déjà citée, est une première vue en coupe du dispositif d'équation du temps marchante représenté à la figure 1 ;
  • la figure 3, déjà citée, est une vue en coupe analogue à celle de la figure 2 sur laquelle est représentée une partie du mécanisme de quantième ;
  • les figures 4A, 4B et 4C illustrent un premier mode de réalisation du mécanisme d'équation marchante universelle selon l'invention, et
  • les figures 5A, 5B et 5C illustrent un second mode de réalisation du mécanisme d'équation marchante universelle selon l'invention.
Other features and advantages of the present invention will emerge more clearly from the following detailed description of one embodiment of the universal walking time equation mechanism according to the invention, this example being given purely by way of illustration and not by way of example. limiting only in connection with the appended drawing in which:
  • the figure 1 , already mentioned, is a plan view of the equation device of the walking time to which the equation mechanism of the universal walking time according to the invention applies;
  • the figure 2 , already cited, is a first sectional view of the equation device of the walking time represented in FIG. figure 1 ;
  • the figure 3 , already cited, is a sectional view similar to that of the figure 2 on which is represented a part of the date mechanism;
  • the Figures 4A, 4B and 4C illustrate a first embodiment of the universal walking equation mechanism according to the invention, and
  • the FIGS. 5A, 5B and 5C illustrate a second embodiment of the universal walking equation mechanism according to the invention.

La présente invention procède de l'idée générale inventive qui consiste à procurer un mécanisme d'équation du temps marchante universelle qui, pour l'affichage du temps solaire, prend en compte l'écart entre la minute civile et la minute solaire, l'écart lié à la position en longitude de l'utilisateur par rapport au centre du fuseau horaire, et l'écart lié à l'éventuel décalage entre l'heure civile du lieu où se trouve l'utilisateur et l'heure officielle au centre du fuseau horaire.The present invention proceeds from the general inventive idea of providing an equation mechanism of the universal walking time which, for the display of solar time, takes into account the difference between the civil minute and the solar minute, the the difference in the longitude position of the user relative to the center of the time zone, and the deviation from any discrepancy between the civil time of the user's location and the official time in the center of the time zone; time zone.

Les figures 4A, 4B et 4C illustrent un premier mode de réalisation du mécanisme d'équation marchante universelle selon l'invention.The Figures 4A, 4B and 4C illustrate a first embodiment of the universal walking equation mechanism according to the invention.

Les figures 5A, 5B et 5C illustrent un second mode de réalisation du mécanisme d'équation marchante universelle selon l'invention.The FIGS. 5A, 5B and 5C illustrate a second embodiment of the universal walking equation mechanism according to the invention.

La figure 4A est une représentation schématique d'un mécanisme d'équation marchante selon l'art antérieur comprenant un dispositif différentiel 44 qui a pour entrées respectives une chaussée 46 entraînant une aiguille des minutes du temps civil 48 et une came d'équation du temps 50. En sortie, le dispositif différentiel 44 entraîne une minute d'équation marchante 52. Comme déjà mentionné ci-dessus, la minute d'équation marchante 52 indique l'écart, pour un jour donné, entre le temps civil et le temps solaire. Cette différence entre le temps civil et le temps solaire atteint +14 min 22 s le 11 février, et -16 min 23 s le 4 novembre.The Figure 4A is a schematic representation of a walking equation mechanism according to the prior art comprising a differential device 44 which has for respective entries a roadway 46 driving a minute hand of the civil time 48 and a weather equation cam 50. At the output, the differential device 44 causes one minute of walking equation 52. As already mentioned above, the minute of walking equation 52 indicates the difference, for a given day, between the civil time and the solar time. This difference between the civil time and the solar time reaches +14 min 22 s on February 11, and -16 min 23 s on November 4.

A l'écart entre le temps civil et le temps solaire s'ajoute l'écart lié à la position en longitude de l'utilisateur dans le fuseau horaire. En effet, la largeur d'un fuseau horaire est de 15°, ce qui correspond à une durée d'une heure, de sorte que le soleil entre dans le fuseau horaire 30 minutes avant l'heure officielle du fuseau et en ressort 30 minutes après l'heure officielle du fuseau.At the difference between the civil time and the solar time is added the difference related to the position in longitude of the user in the time zone. Indeed, the width of a time zone is 15 °, which corresponds to a duration of one hour, so that the sun enters the time zone 30 minutes before the official time of the spindle and comes out 30 minutes after the official time of the spindle.

C'est pourquoi, comme représenté à la figure 4B annexée à la présente demande de brevet, la minute d'équation marchante 52 entraîne par friction 54 (lanternage) une minute vraie d'équation marchante 56. Cette minute vraie d'équation marchante 56 se distingue de la minute d'équation marchante 52 en ce qu'elle tient compte non seulement de l'écart, pour un jour donné, entre le temps civil et le temps solaire, mais encore de la position en longitude de l'utilisateur dans le fuseau horaire. La minute vraie d'équation marchante 56 entraîne à son tour, par l'intermédiaire d'une minuterie d'équation vraie 58, une heure vraie d'équation marchante 60. Un train de rouage 62 pouvant être actionné par l'utilisateur est couplé à la minuterie d'équation vraie 58. Selon une variante de réalisation, le train de rouage 62 est couplé directement à la minute vraie d'équation marchante 56. Ce train de rouage 62 permet de décaler la minute et l'heure vraies d'équation marchante respectivement 56, 60 en fonction de la position en longitude de l'utilisateur dans le fuseau. A cet effet, et comme illustré à la figure 4C annexée à la présente demande de brevet, le train de rouage 62 porte une ou deux indications. Une première roue 64 du rouage 62 porte l'indication ± 7,5° du décalage de la position de l'utilisateur par rapport au centre du fuseau horaire (sachant que chaque fuseau horaire compte 15 °) et, de manière facultative, une autre roue 66 du train de rouage 62 peut porter une indication Est ou Ouest du décalage par rapport au centre du fuseau horaire.This is why, as represented in Figure 4B attached to this patent application, the minute of walking equation 52 causes friction 54 (lanterning) a true minute of walking equation 56. This true minute of walking equation 56 differs from the minute of walking equation 52 in it takes into account not only the difference, for a given day, between calendar time and solar time, but also the position in longitude of the user in the time zone. The true minute of running equation 56 in turn causes, through a timer of true equation 58, a true hour of running equation 60. A user-drivable train 62 is coupled to the true equation timer 58. According to an alternative embodiment, the gear train 62 is coupled directly to the true minute of walking equation 56. This gear train 62 shifts the true minute and hour of equation respectively marching 56, 60 depending on the position in longitude of the user in the time zone. For this purpose, and as illustrated in figure 4C attached to this patent application, the gear train 62 carries one or two indications. A first wheel 64 of the train 62 has the indication ± 7.5 ° of the offset of the position of the user relative to the center of the time zone (knowing that each time zone has 15 °) and, optionally, another wheel 66 of the gear train 62 may carry an East or West indication of the offset from the center of the time zone.

On s'intéresse maintenant à l'introduction d'une heure d'hiver ou d'une heure d'été ou bien encore d'une heure différente de l'heure officielle du fuseau horaire en liaison avec la figure 4B.We are now interested in the introduction of a winter time or a summer time or a time different from the official time of the time zone in connection with the Figure 4B .

La chaussée 46 qui porte la minute civile 48 entraîne, dans un rapport de 1/12, via un mobile de minuterie 68, une roue des heures civiles 70. Cette roue des heures civiles 70 porte un sautoir 72 entraînant une étoile de douze dents 74 liée à un axe 76 portant une aiguille des heures civiles 78 et une roue de fuseau 80 présentant le même nombre de dents que la roue des heures civiles 70.The carriageway 46 carrying the civil minute 48 causes, in a ratio of 1/12, via a timer mobile 68, a civil hour wheel 70. This civilian hours wheel 70 carries a jumper 72 resulting in a star of twelve teeth 74 linked to an axis 76 carrying a calendar hour hand 78 and a spindle wheel 80 having the same number of teeth as the calendar hour wheel 70.

La montre selon l'invention est équipée d'au moins une tige de remontoir (non représentée) qui, dans une position rentrée, permet le remontage de la montre et qui, dans une première position tirée, permet de régler l'indication de quantième. Comme on le verra ci-après, dans une deuxième position T2 tirée, la tige de remontoir permet de régler le décalage entre l'heure civile à l'endroit où se trouve le porteur de la montre et l'heure officielle au centre du fuseau horaire et, dans une troisième position tirée T3, la tige de remontoir permet la mise à l'heure de la montre, c'est-à-dire le réglage de la montre à l'heure du lieu où se trouve l'utilisateur de la montre.The watch according to the invention is equipped with at least one winding stem (not shown) which, in a retracted position, allows the watch to be reassembled and which, in a first drawn position, makes it possible to adjust the date indication. . As will be seen below, in a second position T2 drawn, the winding stem makes it possible to adjust the difference between the civil time at the location of the wearer of the watch and the official time in the center of the spindle. time and, in a third position drawn T3, the winding stem allows the time setting of the watch, that is to say the setting of the watch at the time of the place where the user is located. the watch.

La mise à l'heure de la montre se fait par la tige de remontoir en position T3 et via le mobile de minuterie 68. Dans la position T3 de la tige de remontoir, on agit sur le mobile de minuterie 68 pour amener la minute civile 48 et l'heure civile 78 par exemple à midi. En tournant, le mobile de minuterie 68 entraîne la chaussée 46 qui, rappelons-le, constitue l'une des entrées du dispositif différentiel 44. Par conséquent, la rotation de la chaussée 46 provoque la rotation de la minute d'équation marchante 52 qui entraîne à son tour la minute vraie d'équation marchante 56 et l'heure vraie d'équation marchante 60. On notera qu'au moment de l'aiguillage, c'est-à-dire lors du montage des différentes aiguilles en usine, on fait en sorte d'amener le mécanisme de quantième à l'un des quatre jours de l'année où le décalage entre le temps civil et le temps solaire est nul. Dans ce cas, lorsqu'on amène la minute civile 48 et l'heure civile 78 à midi au moyen de la tige de remontoir en position T3, l'heure vraie d'équation marchante 60 et la minute vraie d'équation marchante 60 se placent également à midi.The time setting of the watch is done by the winding stem in position T3 and via the mobile timer 68. In the position T3 of the winding stem, it acts on the mobile timer 68 to bring the minute civil 48 and civil time 78 for example at noon. By turning, the mobile of timer 68 causes the road 46 which, remember, is one of the inputs of the differential device 44. Therefore, the rotation of the roadway 46 causes the rotation of the minute of walking equation 52 which in turn causes the minute true of walking equation 56 and the true hour of walking equation 60. It will be noted that at the time of the switching, that is to say during the assembly of the different needles in the factory, one makes sure that bring the date mechanism to one of the four days of the year when the difference between calendar time and solar time is zero. In this case, when bringing the civil minute 48 and the civil hour 78 at noon by means of the winding stem in position T3, the true hour of equation marching 60 and the true minute of equation marching 60 also place at noon.

Une fois toutes les aiguilles amenées à midi par actionnement de la tige de remontoir en position T3, il faut programmer le décalage entre l'heure civile et l'heure officielle au centre du fuseau. On rappelle que ce décalage est lié à la différence entre l'heure civile à l'endroit du fuseau où se trouve l'utilisateur de la montre et l'heure au centre du fuseau horaire. A titre d'exemple, pour un utilisateur se trouvant en Suisse, le décalage est de + 1 heure en hiver et de + 2 heures en été. Le décalage de l'heure civile ou le passage en heure d'été ou d'hiver se fait par la tige de remontoir en position T2 et par l'intermédiaire de la roue de fuseau 80 en avant ou en arrière par pas d'une heure, l'étoile de douze dents 74 passant d'un pas à l'autre sur le sautoir 72 et effectuant 1/12ème de tour à chaque pas.Once all the needles are brought at noon by actuating the winding stem in position T3, it is necessary to program the difference between the civil time and the official time in the center of the spindle. It is recalled that this shift is related to the difference between the civil time at the location of the time zone where the user of the watch is located and the time in the center of the time zone. For example, for a user in Switzerland, the offset is + 1 hour in winter and + 2 hours in summer. The shift of the civil time or the passage in summer or winter time is done by the winding stem in position T2 and by means of the spindle wheel 80 forwards or backwards in steps of a hour, the star of twelve teeth 74 passing from one step to another on the jumper 72 and performing 1/12 th of a turn at each step.

A ce stade, on a successivement programmé l'écart entre la minute du temps civil et la minute du temps solaire, puis l'écart lié au positionnement en longitude de l'utilisateur dans le fuseau, et enfin l'écart entre l'heure civile à l'endroit du fuseau où se trouve l'utilisateur de la montre et l'heure officielle au centre du fuseau horaire. Il ne reste plus maintenant qu'à régler l'heure civile de la montre pour la faire coïncider avec l'heure du lieu du fuseau où se trouve l'utilisateur de la montre. Cette mise à l'heure s'effectue par un nouvel actionnement de la tige de remontoir en position T3. Au cours de cette manipulation, on règle l'affichage de la minute civile 48 et de l'heure civile 78 pour que ces aiguilles affichent l'heure civile du lieu où se trouve l'utilisateur. En même temps, l'heure vraie d'équation marchante 60 et la minute vraie d'équation marchante 56 se déplacent dans le même sens et de la même quantité que la minute civile 48 et l'heure civile 78. Finalement, la montre affiche l'heure civile et l'écart entre l'heure civile et l'heure solaire vraie.At this stage, the difference between the minute of the civil time and the minute of the solar time was successively programmed, then the difference related to the positioning in longitude of the user in the time zone, and finally the difference between the time where the watch user is and the official time in the center of the time zone. All that remains now is to set the calendar time of the watch to coincide with the time of the location of the time zone where the user of the watch is located. This setting is done by a new operation of the winding stem in position T3. During this manipulation, we set displaying the civil minute 48 and the civil time 78 so that these hands display the civil time of the location where the user is. At the same time, the true hour of walking equation 60 and the actual minute of moving equation 56 move in the same direction and of the same amount as the civil minute 48 and the civil time 78. Finally, the watch displays the civil time and the gap between the civil time and the true solar time.

Les figures 5A, 5B et 5C annexées à la présente demande de brevet illustrent un second mode de réalisation du mécanisme d'équation universelle marchante selon l'invention. Ce second mode de réalisation de l'invention ne se distingue du premier mode de réalisation de l'invention illustré en liaison avec les figures 4A, 4B et 4C qu'en ce qu'il est prévu de chasser une aiguille des minutes du temps vrai 82 sur le canon de la chaussée 56 de la minute vraie d'équation marchante. Cette aiguille des minutes du temps vrai 82 se déplace au-dessus d'un disque indicateur de décalage 84 chassé sur le canon de la chaussée de la minute d'équation marchante 52. Ce disque indicateur de décalage 84 porte l'indication ± 7,5° du décalage de la position de l'utilisateur par rapport au centre du fuseau horaire (sachant que chaque fuseau horaire compte 15°) ainsi que l'indication Est ou Ouest du décalage par rapport au centre du fuseau horaire.The FIGS. 5A, 5B and 5C appended to this patent application illustrate a second embodiment of the universal equation walking mechanism according to the invention. This second embodiment of the invention is distinguished from the first embodiment of the invention illustrated in connection with the Figures 4A, 4B and 4C that in that it is planned to chase a minute hand of the true time 82 on the barrel of the roadway 56 from the true minute of walking equation. This true time minute handwheel 82 moves over a shift indicator disc 84 driven out of the carriage borehole of the running equation minute 52. This shift indicator disc 84 has the indication ± 7, 5 ° the offset of the position of the user relative to the center of the time zone (knowing that each time zone counts 15 °) and the East or West indication of the offset from the center of the time zone.

Plus précisément, on comprend que si l'utilisateur se trouve au milieu du fuseau horaire, l'aiguille des minutes du temps vrai 82 pointe sur le repère zéro du disque indicateur de décalage 84. On comprend également que l'aiguille des minutes du temps vrai 82 et le disque indicateur de décalage 84 se décalent sensiblement de ± 15 min par rapport à l'aiguille des minutes du temps civil 48 afin d'indiquer l'écart, pour un jour donné, entre le temps civil et le temps solaire. Cette différence entre le temps civil et le temps solaire atteint +14 min 22 s le 11 février, et -16 min 23 s le 4 novembre. Par ailleurs, on agit sur l'aiguille des minutes du temps vrai 82 indépendamment du disque indicateur de décalage 84 pour programmer, par l'intermédiaire du rouage 62 de décalage et d'affichage, le décalage en longitude Est ou Ouest lié à la position de l'utilisateur par rapport au centre du fuseau horaire. A titre d'exemple, supposons que l'on soit le 21 juin. A cette date, on sait que la minute du temps civil est en avance de deux minutes par rapport à la minute du temps solaire. Par conséquent, si l'aiguille des minutes du temps civil 48 pointe sur la graduation zéro, l'aiguille des minutes du temps vrai 82 et le disque indicateur de décalage 84 indiqueront un décalage de -2 min. Si l'on suppose en outre que l'utilisateur se trouve par exemple à 4° de longitude Est par rapport au centre du fuseau horaire, on agit uniquement sur l'aiguille des minutes du temps vrai 82 pour l'amener en position 4° de longitude Est sur le disque indicateur de décalage 84. Par conséquent, si l'utilisateur se trouve un 21 juin à 4° de longitude Est par rapport au centre du fuseau horaire, l'aiguille des minutes du temps civil 48 sera à zéro, le zéro du disque indicateur de décalage 84 sera décalé de -2 min par rapport à l'aiguille des minutes du temps civil 48 et l'aiguille des minutes du temps vrai 82 sera décalée de 4° de longitude Est par rapport au disque indicateur de décalage 84, c'est-à-dire de + 16 min. Au final, l'aiguille des minutes du temps vrai 82 sera décalée de + 14 min par rapport à l'aiguille des minutes du temps civil 48.More specifically, it is understood that if the user is in the middle of the time zone, the true time minute hand pointer 82 points to the zero mark of the shift indicator disc 84. It is also understood that the minute hand of time true 82 and the shift indicator disc 84 are shifted substantially ± 15 min relative to the minute hand of the civil time 48 to indicate the deviation, for a given day, between the civil time and the solar time. This difference between the civil time and the solar time reaches +14 min 22 s on February 11, and -16 min 23 s on November 4. On the other hand, the minute hand of the true time 82 is actuated independently of the shift indicator disc 84 to program, by means of the shift gear wheel 62 and display, the offset in East or West longitude related to the user's position relative to the center of the time zone. For example, suppose we are on June 21st. At this date, we know that the minute of the civil time is two minutes ahead of the minute of solar time. Therefore, if the civilian time minute hand 48 points to the zero scale, the true time minute handpiece 82 and the offset indicator disc 84 will indicate an offset of -2 min. If it is further assumed that the user is for example at 4 ° East longitude relative to the center of the time zone, it acts only on the minute hand of the true time 82 to bring it to the 4 ° position of longitude East on the shift indicator disc 84. Therefore, if the user is a 21 June at 4 ° East longitude relative to the center of the time zone, the minute hand of the civil time 48 will be zero, the zero of the shift indicator disc 84 will be shifted -2 min relative to the minute hand of the civil time 48 and the minute hand of the true time 82 will be offset by 4 ° east longitude relative to the indicator disc of offset 84, that is to say + 16 min. In the end, the minute hand of the true time 82 will be shifted +14 min relative to the minute hand of the civil time 48.

Il va de soi que la présente invention n'est pas limitée au mode de réalisation qui vient d'être décrit et que diverses modifications et variantes simples peuvent être envisagées par l'homme du métier sans sortir du cadre de l'invention tel que défini par les revendications annexées à la présente demande de brevet. On notera en particulier que dans la position T3 de la tige de remontoir, on agit sur la minute civile 48 et l'heure civile 78. A cet effet, la tige de remontoir comprend un pignon coulant qui vient agir par l'intermédiaire d'un premier rouage sur le mobile de minuterie 68. De même, en position T2 de la tige de remontoir, on introduit le décalage entre l'heure du lieu où l'on se trouve et l'heure officielle du fuseau. Pour cela, le pignon coulant de la tige de remontoir agit par l'intermédiaire d'un second rouage sur la roue de fuseau 80.It goes without saying that the present invention is not limited to the embodiment which has just been described and that various modifications and simple variants can be envisaged by those skilled in the art without departing from the scope of the invention as defined by the claims appended to this patent application. It will be noted in particular that in the position T3 of the winding stem, it acts on the civil minute 48 and the civil time 78. For this purpose, the winding stem comprises a sliding pinion which comes to act through a first gear on the mobile timer 68. Similarly, T2 position of the winding stem, we introduce the shift between the time of the place where we are and the official time of the spindle. For this, the sliding pinion of the winding stem acts via a second wheel on the spindle wheel 80.

Claims (5)

  1. Universal running equation of time mechanism including a differential device (44), a first input of which is formed by a cannon-pinion (46) for the civil time minutes and a second input of which is formed by a running equation cam (50), the differential device (44) outputting a running equation of time minute (52) which indicates the difference, for a given day, between civil time and solar time, the running equation minute (52) driving a true minute (56) of the running equation of time, which, via a true equation motion work (58) drives a true hour (60) of the running equation of time, the civil time minute cannon-pinion (46) driving, via a motion work wheel set (68), a civil hour wheel (70), a jumper spring (72), integral with the civil hour wheel (70), cooperating with a star (74) having twelve teeth connected to an arbor (76) carrying a civil hour hand (78), a time zone wheel (80) also being integral with the arbor (76), a time difference and display train (62), coupled to the true equation motion work (58), applying the time difference linked to the longitude position of the user relative to the center of the time zone to the true running equation hour (60), the time zone wheel (80) applying to the civil hour wheel (70), in forward or backward one-hour steps, the time difference between the civil time at the place where the user is situated and the time at the center of the time zone, characterized in that the running equation minute (52) is connected to the true running equation minute (56) by indenting.
  2. Running equation of time mechanism according to claim 1, characterized in that a first wheel (64) of the difference and display train (62) carries the indication ± 7.5° of the offset of the position of the user relative to the center of the time zone.
  3. Running equation of time mechanism according to claim 2, characterized in that another wheel (66) of the difference and display train (62) carries an east, west indication of the offset relative to the center of the time zone.
  4. Running equation of time mechanism according to any of claims 1 to 3, characterized in that a true time minute hand (82) is driven onto the pipe of the cannon-pinion (56) for the true running equation minutes, said true time minute hand (82) moving above an offset indicator disc (84) driven onto the pipe of the running equation minute cannon-pinion (52).
  5. Method of setting a universal running equation of time mechanism according to any of claims 1 to 4, including the steps consisting in:
    • applying the difference, for a given day, between civil time and true time to the true running equation hour (60);
    • applying the difference associated with the longitude position of the user relative to the center of a time zone, to the true running equation hour (60);
    • applying to the civil hour wheel (70), in forward or backward steps of one hour, the difference between civil time at the place where the user is located and the time at the center of the time zone;
    • adjusting the civil time so that it coincides with the time of the place within the time zone where the watch user is located.
EP13705760.0A 2012-02-27 2013-02-21 Universal running equation of time mechanism, and method for setting such a mechanism Active EP2820486B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP13705760.0A EP2820486B1 (en) 2012-02-27 2013-02-21 Universal running equation of time mechanism, and method for setting such a mechanism

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP12157118 2012-02-27
EP13705760.0A EP2820486B1 (en) 2012-02-27 2013-02-21 Universal running equation of time mechanism, and method for setting such a mechanism
PCT/EP2013/053410 WO2013127681A1 (en) 2012-02-27 2013-02-21 Universal running equation of time mechanism, and method for setting such a mechanism

Publications (2)

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EP2820486A1 EP2820486A1 (en) 2015-01-07
EP2820486B1 true EP2820486B1 (en) 2016-02-17

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US (1) US9261859B2 (en)
EP (1) EP2820486B1 (en)
JP (1) JP5918394B2 (en)
CN (1) CN104246627B (en)
HK (1) HK1205289A1 (en)
RU (1) RU2592776C2 (en)
WO (1) WO2013127681A1 (en)

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EP3333640B1 (en) * 2016-12-08 2022-03-30 Montres Breguet S.A. Running time equation mechanism controlled by a differential device

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CH708215B1 (en) * 2013-06-06 2018-02-15 Gfpi S A Timepiece comprising a device for displaying the equation of time.
EP3029531B1 (en) * 2014-12-02 2018-08-01 Blancpain SA. Device for displaying periods forming an annual cycle
CH712219A2 (en) * 2016-03-15 2017-09-15 Chanel Sa Genève Mechanism for watch movement with retrograde and jumping display.
EP3270236B1 (en) * 2016-07-15 2020-02-12 Montres Breguet S.A. Running time equation mechanism controlled by a differential device
EP3410231B1 (en) * 2017-05-29 2021-06-30 Montres Breguet S.A. Clock mechanism
USD957267S1 (en) * 2020-01-09 2022-07-12 Montres Breguet Sa (Montres Breguet Ag) (Montres B Watch case

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US1459710A (en) 1919-05-24 1923-06-26 Samuel W Balch Combined sidereal and mean solar timepiece
CH680632B5 (en) * 1990-04-18 1993-04-15 Longines Montres Comp D
CH681674B5 (en) * 1991-04-17 1993-11-15 Montres Breguet Sa clockwork perpetual calendar.
EP1243985A1 (en) * 2001-03-20 2002-09-25 Wiederrecht, Jean-Marc Clockwork
CH696218A5 (en) * 2001-08-07 2007-02-15 Piguet Frederic Sa Timepiece in calendar including a running equation of time device.
ATE384980T1 (en) * 2001-08-07 2008-02-15 Piguet Frederic Sa CALENDAR WATCH WITH EQUATION DEVICE
EP1343056A1 (en) 2002-03-08 2003-09-10 The British Masters SA Wristwatch with solar time display
EP1637941A1 (en) * 2004-09-15 2006-03-22 Frédéric Piguet S.A. Calendar timepiece comprising an equation-of-time device
EP2503407B1 (en) 2011-03-23 2017-06-28 Montres Breguet SA Timepiece movement comprising an instant actuator controlled by the movement
EP2503412B1 (en) 2011-03-23 2013-08-28 Montres Breguet SA Uhrwerk, das eine Vorrichtung mit fortschreitender Zeitgleichung umfasst

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Publication number Priority date Publication date Assignee Title
EP3333640B1 (en) * 2016-12-08 2022-03-30 Montres Breguet S.A. Running time equation mechanism controlled by a differential device

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Publication number Publication date
CN104246627A (en) 2014-12-24
HK1205289A1 (en) 2015-12-11
US9261859B2 (en) 2016-02-16
WO2013127681A1 (en) 2013-09-06
CN104246627B (en) 2017-02-22
EP2820486A1 (en) 2015-01-07
RU2592776C2 (en) 2016-07-27
JP2015510123A (en) 2015-04-02
JP5918394B2 (en) 2016-05-18
US20150103635A1 (en) 2015-04-16
RU2014138931A (en) 2016-04-20

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