EP3339971A1 - Timepiece comprising a day/night display taking into account seasonal variations - Google Patents
Timepiece comprising a day/night display taking into account seasonal variations Download PDFInfo
- Publication number
- EP3339971A1 EP3339971A1 EP16206811.8A EP16206811A EP3339971A1 EP 3339971 A1 EP3339971 A1 EP 3339971A1 EP 16206811 A EP16206811 A EP 16206811A EP 3339971 A1 EP3339971 A1 EP 3339971A1
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- European Patent Office
- Prior art keywords
- hours
- mobile
- circle
- sphere
- teeth
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Images
Classifications
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- G—PHYSICS
- G04—HOROLOGY
- G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
- G04B19/00—Indicating the time by visual means
- G04B19/24—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars
-
- 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
- G04B19/226—Arrangements for indicating different local apparent times; Universal time pieces three-dimensionally shaped, e.g. terrestrial globes, cylinders and the like
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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
- G04B19/25366—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 manually corrected at the end of months having less than 31 days
Definitions
- the present invention relates to a timepiece comprising a watch movement, a calendar mechanism and means for indicating the sunrise and sunset taking into account seasonal variations
- the watch movement comprising a minute mobile, a timer wheel , an hours indicating member, and a mobile hours integral rotation of the hours indicating member and arranged to be driven by the minute mobile via the clockwork is at the speed of a turn in 12 hours, or at a speed of one turn in 24 hours
- the calendar mechanism being arranged to be driven via the hours mobile and having means for displaying the date and means for displaying the month
- the means for indicating the date sunrise and sunset including a sphere reproducing the globe, a support, and a circle mounted on the support concentrically to the sphere and arranged to indicate the position of the terrestrial terminator, the circle and the sphere being arranged to be driven so as to rotate relative to each other, at the rate of one revolution per 24 hours, about a first axis corresponding to the polar axis of the terrestrial globe, and the circle being mounted on the support
- the duration of the day is the time included, each day, between the moment when the upper limb of the Sun appears to the east above the horizon, at sunrise, until its disappearance to the west below of the horizon, at sunset. Whatever the time, there is always half of the surface of the globe which is illuminated by the Sun, and another half which is in the shadow.
- the term terrestrial terminator is the line of demarcation between the part of the Earth which is illuminated and that which is in the shadow.
- the terrestrial terminator is a large circle that surrounds the globe. This large circle extends in a plane perpendicular to the plane of the earth's orbit around the sun (called the plane of the ecliptic). We can still note that the center of the Earth is on the line of intersection between these two planes.
- the length of the day varies throughout the year and depends on the latitude. This variation is caused by the inclination of the axis of rotation of the Earth on itself with respect to the plane of the ecliptic. This inclination corresponds by definition to the latitude of the tropics which is ⁇ 23 ° 27 '.
- the duration of the day is shortest during the December solstice in the northern hemisphere, and June in the southern hemisphere. At the equinoxes, the duration of the day is equal to that of the night on the whole Earth.
- timepieces arranged to indicate the current position of the limit between day and night and which correspond to the definition given in the preamble above. These include descriptions in patent documents EP 2,911,013 , EP 2 977 832 and EP 3,007,012 in the name of the plaintiff. The use and design of these timepieces, however, present a number of difficulties.
- these timepieces comprise an annual cam which has a profile representative of the inclination of the Sun relative to the equatorial plane and which is intended to be rotated by the movement at the rate of one revolution per year.
- a disadvantage of these timepieces is that it can be problematic to return the annual cam to the exact position after an indefinite stop time of the timepiece.
- An object of the present invention is to overcome the aforementioned drawbacks of the prior art.
- the invention achieves this goal by providing a watch movement according to the appended claim 1.
- the timepiece comprises a calendar mechanism arranged to be driven via the hours mobile and which comprises means for displaying the date and means to display the month.
- the timepiece also includes a third kinematic chain that connects the hours mobile to the annual cam via means for displaying the month.
- the calendar mechanism is driven by the hours motive. Under these conditions, when the wearer of the timepiece changes the indication of the time, for example to correct it, the correction of the time automatically causes the correction of the calendar mechanism and the annual cam.
- the third kinematic chain has either a transmission ratio of 1/744 th (in the case where the mobile hours is arranged to be driven by the timer at the speed of a lap in 12 hours), a transmission ratio of 1/372 th (in the case where the mobile hours is arranged to be driven by the timer at the rate of one revolution in 24 hours).
- a simple calendar is a calendar mechanism for which every month has 31 days. In a calendar of this type, it is necessary at the end of months not having 31 days, manually advance the needle or the date disk, to update it. As for the change of the indication of the name of the month, it can be done automatically each time the indication of the date passes from the 31st date to the date 1. The man of the trade will tend to consider that if the annual cam n is not driven by through the means to display the date, the difference between the real time and the current position of the terrestrial terminator on the globe will gradually increase. However, if, for example, the date is pushed forward at the end of the months that do not have 31 days using the time setting, this date setting operation is not likely to de-synchronize the calendar and the annual cam. .
- the watch movement comprises a summer / winter correction mechanism manually operable to switch from summer time to winter time, or vice versa, by rotating the mobile hours of stepping forward or backward regardless of the clockwork.
- the manually operable mechanism is arranged to rotate the mobile hours without this also affects the indication of the position of the terrestrial terminator on the sphere.
- an advantage of this feature is that it prevents the position of the circle relative to the earth from changing when it does not correspond to a real movement of the Sun relative to the surface of the globe.
- the figure 1 attached is a block diagram illustrating the kinematic links associating different mechanisms of a timepiece according to a first exemplary embodiment of the invention.
- This extremely summary block diagram represents the transmission paths of the driving force provided by the movement to the different mechanisms using double-thick arrows, and the kinematic links which are arranged to transmit the manually entered commands by a user to the user. help of arrows of smaller thickness.
- the arrows appearing kinematic links connect together symbols that represent different mechanisms of the timepiece.
- the mechanisms represented by the symbols comprise a driving mechanism 103 associating a driving member, a regulating member and an escapement, a minutes moving member (referenced 105) which is integral with a minute display member and which is arranged to be driven at the rate of one revolution per hour by the drive mechanism, an hour mobile 107 integral in rotation with a display member hours, a timer train 106 connecting the mobile minutes to the hours so that the latter is driven at the rate of one turn every 12 hours, a time zone correction mechanism (referenced 101) interposed between the wheel of timer 106 and the hours mobile 107.
- the timepiece illustrated further comprises means for indicating the sunrise and sunset taking into account seasonal variations, these means comprising a sphere reproducing the globe, a support, and a mounted circle on the support concentrically to the sphere and which is arranged to indicate the position of the terrestrial terminator.
- the circle and the sphere are arranged to be driven so as to rotate relative to each other, at the rate of one revolution per 24 hours, around a first axis corresponding to the polar axis of the terrestrial globe.
- the circle is mounted on the support so as to also pivot relative to the sphere along a second axis intersecting the first axis perpendicular to the center of the sphere.
- the means of indicating the sunrise and sunset also include an annual cam having a profile representative of the inclination of the Sun relative to the equatorial plane and which is arranged to be rotated at the rate of one revolution per year, a cam follower arranged to cooperate with the cam, and a first kinematic chain arranged to connect the cam follower to the circle so that the plane subtended by the circle makes with the first axis an angle equal to the angle of inclination of the Sun with respect to the equatorial plane.
- the timepiece comprises a sunrise and / or sunset indicator mechanism 115 which includes a sphere 117 showing the globe and a hull 113 shaped hemisphere which is arranged concentrically to the sphere 117 so as to darken or hide half of the surface of the globe on which it is night.
- the shell 113 has a substantially circular rim 113a which constitutes the circle of means for indicating the sunrise and sunset of the invention.
- the illustrated timepiece also comprises a calendar mechanism arranged to be driven via the hours mobile 107.
- the calendar mechanism shown comprises means for displaying the date 123 and means for displaying the date. month 125.
- the calendar mechanism is of the "simple date" type. As the person skilled in the art knows, in a simple calendar, it is necessary at the end of months not having 31 days, to manually advance the display of the date, in order to update it. As for the change of the indication of the name of the month, it is done automatically each time the indication of the date passes from the date 31 to the date 1.
- the hours mobile is arranged to cause the means to display the month 125 by means of a gear train 118 which does not go through the means to display the date 123.
- the gear reducer 118 is present as follows: the mobile hours 107 is integral in rotation with a reducing gear (not shown) which comprises a pinion of 18 teeth.
- the pinion of the reduction gear meshes with a wheel of 36 teeth of a first mobile inter (referenced 119) which is arranged to perform a turn in 24 hours.
- the first mobile inter 119 also comprises two fingers which are arranged for, once every 24 hours, cooperate respectively with one of the teeth of a date star with 31 teeth, and with one of the teeth of a star of 40 teeth which is part of a second mobile inter (not shown), so as to advance one step each of the two stars.
- the second mobile inter also comprises a pinion of 10 teeth arranged coaxially with the star of 40 teeth.
- the pinion of 10 teeth is arranged to mesh with a toothing of 93 teeth that presents an annual mobile means to display the month 125.
- the timepiece shown further comprises a tilting control mechanism (referenced 109) which includes an annual cam 111 and a cam follower (not shown).
- the hours mobile 107 drives the annual cam via a third kinematic chain 118 which passes through the means to display the month 125.
- the annual cam 111 is carried by the annual mobile means to display the month. The annual mobile is therefore part of both the inclination control mechanism 109 and the means for displaying the month 125.
- the third kinematic chain which, according to the invention, connects the hours mobile 107 and the annual cam 111 is constituted by the reduction gear train 118 which has been described above in connection with the means for displaying the month 125.
- the ratio of the gear wheel 118 is 1/744.
- the hours mobile 107 is arranged to perform a complete revolution every 12 hours.
- the hours mobile could alternatively be arranged to rotate at the rate of one turn every 24 hours instead of every 12 hours, and that in this case, the ratio of gear reducer is 1/372, the wheel is then shortened.
- the movement of the shell 113 relative to the sphere 117 is the result of the composition of distinct rotations along two perpendicular axes intersecting at the center of the sphere.
- the first of these two rotations is performed by the Earth which is arranged to rotate at the rate of a turn in 24 hours around a first of these two axes, and the other rotation corresponds to the pivoting of the shadow in the form of half-sphere around the second axis and results in a variation of the angle of inclination of the half-sphere relative to the first axis. Since the movements of the shadow 113 and the sphere 117 relative to each other are two functionally independent motions, the sunrise and / or sunset indicator mechanism 115 is shown twice in FIG.
- FIG. 1 Referring to the figure, it will be understood that the mechanism 115 is represented a first time to symbolize the rotation of the sphere 117 at the rate of one revolution per 24 hours around the first axis, and a second time to symbolize the pivoting of the shadow 113 around the second axis.
- the pivoting movement about the second axis is controlled from the annual cam 111 whose profile is representative of the relative inclination of the Sun above or below the equatorial plane of the Earth.
- the cam follower (not shown) is arranged to transmit the variations in the profile of the cam to the hemispherical shell 113 via a first kinematic link 112.
- the Shade 113 in the form of a half-sphere is pivotally mounted on a fixed support, and the arrangement of the indicator mechanism 115, like that of the first kinematic link 112, may conform, for example, to that described in the document EP Patent 2,911,013 . This document is incorporated by reference in the present description.
- the timepiece whose operation is shown still has a a number of correcting mechanisms which are arranged to be actuated manually by the wearer of the timepiece.
- a time zone correction mechanism (referenced 101) is interposed between the timer train 106 and the hours mobile 107.
- the mechanism 101 can be controlled in two different ways depending on whether the time change is related to a real change of longitude, following a trip for example, or that it is linked to the transition from winter time to summer time or Conversely.
- the wearer of the timepiece changes his time zone during a journey, he can correct the indication of the time using the control rod 131 of the workpiece. watchmaking.
- the mobile hours 107 causes the display mechanism of the month 125 and the annual cam 111 via the third kinematic chain 118.
- the mobile hours 107 also leads the date mechanism 123 and the Earth 117 in its rotation about the first axis. It will thus be understood that the annual cam 111, the calendar 123, and the sunrise and / or sunset indicator mechanism 115 are arranged to advance synchronously, not only when they are driven from the sunrise mechanism. 103, but also when they are manually driven forward or backward with the control rod 131 in position T2.
- the wearer of the timepiece can shift the time. indication of the time exactly one hour forward or backward by operating the pusher P2.
- the pusher P2 When actuated, the pusher P2 does not act solely on the mechanism of correction of the time zone 101, but also on a disengagement mechanism 133, so as to disengage the second kinematic chain 120 which is arranged to drive the Earth in rotation at the rate of one turn in 24 hours. It will be understood that disengaging the second kinematic chain prevents the relative angular position of the shadow 113 relative to the sphere 117 is affected by the transitions between summer time and winter time.
- the timepiece of the present example includes a traditional time setting.
- This setting allows the wearer of the timepiece to set it on time using the control rod 131 of the timepiece. To do this, he must bring the rod 131 in position T3 before rotating the crown.
- the time setting is arranged to drive the timer train 106 which in turn drives the minutes mobile 105 and the hours mobile 107.
- the mobile hours 107 causes the display mechanism of the month 125 and the annual cam 111 via the third kinematic chain 118.
- the mobile hours 107 also causes the date mechanism 123 and the Earth in its rotation about the first axis. It will thus be understood that the annual cam 111, the calendar 123 and the sunrise and / or sunset indicator mechanism 115 are arranged to move synchronously, also when manually driven forward or backward. using the control rod 131 in position T3.
- the timing mechanism of the timepiece of the present embodiment also includes a month corrector mechanism.
- the wearer of the timepiece wishes to correct the indication of the month, for example following a downtime indeterminate of the timepiece, it can shift step by step indication of the month forward or backward by operating the pusher P1.
- the annual mobile means for displaying the month 125 also carries the annual cam 111, the latter advances synchronously with the indication of the date, even when the indication of the month is changed using the month corrector.
- the figure 2 annexed is a functional diagram quite similar to that of the figure 1 , but illustrating the kinematic links associating different mechanisms of a timepiece according to a second exemplary embodiment of the invention.
- the second embodiment is very similar to the first and, in particular, the correction mechanisms arranged for actuated by the wearer of the timepiece are identical to those described in connection with the first embodiment.
- a drive mechanism 203 associating a drive member, a regulating member and an exhaust, a motive minutes (referenced 205) which is integral with a minute display member and which is arranged to be driven to a rhythm of one revolution per hour by the drive mechanism, a mobile of the hours 207 rotatably connected to an hour display member, a timer wheel 206 connecting the mobile minutes to that of the hours so that that the latter is driven at the rate of one turn every 12 hours, a mechanism for correcting the time zone (referenced 201) interposed between the timer train 206 and the mobile hours 207, a tilt control mechanism (referenced 209) which comprises an annual cam 211 and a cam follower (not shown), and finally a sunrise and / or sunset indicator mechanism (referenced 215) comprising a sphere 217 reproducing the globe and a hull 213, in the form of a half-sphere, which is arranged concentrically to the sphere.
- a motive minutes referenced 205
- a mobile of the hours 207
- the hours mobile 207 drives the annual cam via a third kinematic chain 218 which may optionally be identical to the kinematic chain 118 described above in connection with the first exemplary embodiment.
- the relative movement of the half-sphere 213 and the sphere 217 is the result of the composition of distinct rotations along two perpendicular axes intersecting at the center of the sphere.
- it is the semi-sphere-shaped shadow 213 which performs both rotations simultaneously, the sphere 217 being not driven.
- This mode of operation is made possible by the fact that the support (not shown) on which the shadow 213 is mounted is a rotary support.
- the hours mobile 207 is connected to the rotary support (not shown) by a kinematic chain 220 (hereinafter "the second kinematic chain 220") which is provided with a mechanism 233 clutch which can be quite similar to the disengagement mechanism 133 described above in connection with the transition from summer time to winter time.
- the arrangement of the indicator mechanism 215 and that of the second kinematic link 220 may, for example, be in accordance with what is described in one or other of the documents.
- EP 2 977 832 and EP 3,007,012 are incorporated by reference in the present description.
- a referenced mechanism 216 is interposed between the tilt control mechanism 209 and the indicator mechanism 215. It can be seen that the mechanism 216 has an output connected to the indicator mechanism 215 and two inputs.
- a kinematic link 221 (called fourth kinematic link 221) connects the mobile hours 207 to a first of two inputs. The mechanism 216 is driven by the mobile hours through its first input, said drive input.
- the cam follower (not shown) is connected to the second input by a kinematic link 212 (called first kinematic link 212) arranged to transmit the variations in the profile of the cam.
- the mechanism 216 is controlled by the profile of the cam 211 through its second input, called control input.
- the output of the mechanism 216 is arranged to drive the indicator mechanism 215 at the speed of one revolution in 24 hours.
- the mechanism 216 drives the indicator mechanism with a certain phase shift with respect to the second kinematic link 220.
- the mechanism 216 can be realized in multiple ways without departing from the scope of the present invention.
- it may be a differential mechanism, especially a differential mechanism as described in the patent document. EP 2 977 832 .
- It can also be a disengaging mechanism, including a disengaging mechanism as described in the patent document EP 3,007,012 .
- the illustrated timepiece also comprises a calendar mechanism constituted by the combination of the date display mechanism 223 and the display mechanism of the month 225.
- This calendar mechanism is of the "simple date” type ".
- the mechanism 101 comprises a first barrel 2, said inner barrel, designed to be conventionally mounted for rotation, about an axis of rotation X, on a roadway C driven by the drive mechanism 103 (shown in FIG. the figure 1 ).
- the inner barrel 2 carries an indicator needle 4 forming an hour hand, which needle is driven externally on a free end of the barrel 2 projecting from the mechanism 101.
- the inner barrel 2 thus forms a gun of hours, and it supports a first externally toothed wheel 6, said lower wheel, comprising a plate 7. It will be specified here that advantageously this lower wheel 6 forms a wheel hours, and it meshes with a wheel 8 (partially shown) of the timer train 106.
- this hour wheel 6 receives a time information delivered by the wheel 8 of the timer, information that it transmits, as will be understood below, indirectly, the inner barrel hours 2 and the indicator needle 4.
- the lower wheel hours 6 is mounted free to rotate on the barrel hours 2.
- the gun hours 2 has at its end that is opposite to its free end carrying the needle 4, a flange 10 forming a shoulder freely supporting a star 12 on which is fixedly fixed the wheel 6.
- the star 12 comprises a board 13, an external toothing 14 and a circular collar 16 formed edging adjacent to the toothing 14, behind and coaxially with it, under the board 13.
- the hour wheel 6 is fixedly held on the star 12 flank against its toothing 14. In fact, the hour wheel 6 via the central portion of its board 7 which has a through bore, is engaged by force externally on the collar 16, by driving and / or riveting.
- the star 12 and the hour wheel 6 are therefore directly integral in rotation and, in this example, they by their assembly, they form only one piece attached to the barrel of the hours 2.
- the star 12 and the hour wheel 6 can therefore move together concomitantly under the effect of the wheel 8 of the timer .
- the summer / winter correction mechanism further comprises two drive rollers 20 which are staggered and which each have a cylindrical base 22 from which extends normally a stud 24.
- the rollers are both engaged at rest, by their base 22, in the toothing 14 of the star 12 and they rest freely and laterally by this base against the side, not referenced, of the board 7 of the hour wheel 6.
- This rest position is likewise represented in FIG. top view at the figure 3B .
- the rollers 20 are furthermore maintained in this rest position in the toothing 14, resiliently by elastic return means 26 which are formed here by a closed annular spring, mounted coaxially with the star 12 and acting radially on the outer periphery of the base 22 of the rollers 20.
- elastic return means 26 which are formed here by a closed annular spring, mounted coaxially with the star 12 and acting radially on the outer periphery of the base 22 of the rollers 20.
- the spring 26 is mounted freely against the drive rollers 20, without any fixed attachment to the workpiece 101.
- the summer / winter correction mechanism further comprises a second barrel 30, said outer barrel, which comprises a guide bore 31 and which is fixed externally by this bore 31 on the first barrel 2.
- This second barrel 30 supports a second wheel externally toothed 32 disposed above the lower wheel hours 6 and said upper wheel. It will be specified here that the upper and lower positions of the wheels 6 and 32 are taken with reference to the drawing of the figure 3A which represents the correction mechanism with the hour switch pointing upwards.
- the upper wheel 32 comprises a board 33 and it meshes with its outer teeth with a wheel 34 itself driven by a corrector member manually operable from outside the timepiece.
- the upper wheel 34 thus forms a correction wheel summer / winter allowing, as will be understood, to directly correct the position of the gun hours 2 and the indicator needle 4, without acting on the timer and therefore without disturbing other information times, such as minute and second, which are normally cinematically related to the hours 2 canon via said timer.
- the outer barrel 30 is force-mounted by driving externally on the inner barrel hours 2 and is therefore fixed thereto. These two guns are thus integral in rotation and they can move together. It will be understood that the gun of the hours 2, the outer barrel 30 and the upper wheel 34 together form the mobile of the hours 107.
- the upper correction wheel 34 can thus act on the inner barrel of the hours 2 by means of the outer barrel 30 .
- the clock of the hours 2 is furthermore driven in normal operation by the timer 106, and in particular by the wheel 8 of the timer.
- the plate 33 of the correction wheel 32 are formed radial grooves 36 in which are freely engaged pins 24 which can translate radially therein.
- the rollers 20 can therefore rotate the correction wheel 32, and the two guns 2 and 30, when the star 12 is itself driven by the hour wheel 6.
- the user of the timepiece must rotate the correction wheel 34, the rollers 20 are then moved angularly and (while the star 12 and the hour wheel 7 remain fixed) jump into the toothing 14 of the star 12 by ovalizing the spring 26.
- the rollers 20 then return to the toothing 14 of the star 12, in the rest position, but offset from the position of the figure 2 . Needle 4 then indicates another time zone. It will be specified that although the toothing of the star 12 has 12 teeth in the figures (to indicate the 12 hours), this toothing could include 24 for an application to a timepiece, type 24 h.
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Abstract
La pièce d'horlogerie comprend un mouvement horloger, un mécanisme de calendrier (223, 225) et des moyens d'indication du lever et du coucher du Soleil tenant compte des variations saisonnières (215). Le mécanisme de calendrier à quantième simple comporte un affichage du quantième (223) et un affichage du mois (225). Les moyens d'indication du lever et du coucher du Soleil comprennent encore une came annuelle (211) présentant un profil représentatif de l'inclinaison du Soleil par rapport au plan équatorial et agencée pour être entraînée en rotation à partir du mobile des heures (207) par l'intermédiaire d'une chaîne cinématique (218) passant par les moyens pour afficher le mois et possédant un rapport de transmission de 1/744ème. The timepiece includes a watch movement, a calendar mechanism (223, 225) and means for indicating sunrise and sunset, taking into account seasonal variations (215). The simple calendar calendar mechanism includes a date display (223) and a month display (225). The means for indicating the sunrise and sunset also include an annual cam (211) having a profile representative of the inclination of the sun with respect to the equatorial plane and arranged to be rotated from the hours motive (207). ) via a kinematic chain (218) passing through the means to display the month and having a transmission ratio of 1/744 th .
Description
La présente invention concerne une pièce d'horlogerie comprenant un mouvement horloger, un mécanisme de calendrier et des moyens d'indication du lever et du coucher du Soleil tenant compte des variations saisonnières, le mouvement horloger comprenant un mobile des minutes, un rouage de minuterie, un organe indicateur des heures, et un mobile des heures solidaire en rotation de l'organe indicateur des heures et agencé pour être entraîné par le mobile des minutes via le rouage de minuterie soit à la vitesse d'un tour en 12 heures, soit à la vitesse d'un tour en 24 heures, le mécanisme de calendrier étant agencé pour être entraîné par l'intermédiaire du mobile des heures et comportant des moyens pour afficher le quantième et des moyens pour afficher le mois, les moyens d'indication du lever et du coucher du Soleil comprenant une sphère reproduisant le globe terrestre, un support, et un cercle monté sur le support concentriquement à la sphère et agencé pour indiquer la position du terminateur terrestre, le cercle et la sphère étant agencés pour être entraînés de manière à tourner l'un par rapport à l'autre, au rythme d'un tour par 24 heures, autour d'un premier axe correspondant à l'axe polaire du globe terrestre, et le cercle étant monté sur le support de manière à pouvoir également pivoter relativement à la sphère selon un second axe croisant le premier axe perpendiculairement au centre de la sphère, les moyens d'indication du lever et du coucher du Soleil comprenant encore une came annuelle présentant un profil représentatif de l'inclinaison du Soleil par rapport au plan équatorial et agencée pour être entraînée en rotation à raison d'une révolution par année, un suiveur de came agencé pour coopérer avec la came, et une première chaîne cinématique agencée pour relier le suiveur de came au cercle de manière à ce que le plan sous-tendu par le cercle fasse avec le premier axe un angle égal à l'angle d'inclinaison du Soleil par rapport au plan équatorial. La présente invention concerne notamment une telle pièce d'horlogerie dans laquelle les moyens d'indication du lever et du coucher du Soleil tenant compte des variations saisonnières indiquent également sur quelle partie de la surface de la Terre il fait jour et sur quelle partie de la surface de la Terre il fait nuit.The present invention relates to a timepiece comprising a watch movement, a calendar mechanism and means for indicating the sunrise and sunset taking into account seasonal variations, the watch movement comprising a minute mobile, a timer wheel , an hours indicating member, and a mobile hours integral rotation of the hours indicating member and arranged to be driven by the minute mobile via the clockwork is at the speed of a turn in 12 hours, or at a speed of one turn in 24 hours, the calendar mechanism being arranged to be driven via the hours mobile and having means for displaying the date and means for displaying the month, the means for indicating the date sunrise and sunset including a sphere reproducing the globe, a support, and a circle mounted on the support concentrically to the sphere and arranged to indicate the position of the terrestrial terminator, the circle and the sphere being arranged to be driven so as to rotate relative to each other, at the rate of one revolution per 24 hours, about a first axis corresponding to the polar axis of the terrestrial globe, and the circle being mounted on the support so as to be able to pivot relative to the sphere along a second axis intersecting the first axis perpendicular to the center of the sphere, the means for indicating the sunrise and sunset also comprising an annual cam having a profile representative of the inclination of the Sun relative to the equatorial plane and arranged to be rotated at the rate of one revolution per year, a cam follower arranged to cooperate with the cam, and a first kinematic chain arranged to connect the cam follower to the circle so that the plane subtended by the circle makes with the first axis an angle equal to the angle of inclination of the Sun with respect to the equatorial plane. The present invention relates in particular to such a timepiece in which the means of indicating the sunrise and sunset taking into account seasonal variations also indicate what part of the surface of the Earth it is day and on which part of the surface of the Earth it is night.
La durée du jour est le temps compris, chaque jour, entre le moment où le limbe supérieur du Soleil apparait à l'est au-dessus de l'horizon, au lever du Soleil, jusqu'à sa disparition à l'ouest en dessous de l'horizon, lors du coucher du Soleil. Quelle que soit l'heure, il y a toujours une moitié de la surface du globe qui est éclairée par le Soleil, et une autre moitié qui est dans l'ombre. On appelle terminateur terrestre la ligne de démarcation entre la partie de la Terre qui est éclairée et celle qui est dans l'ombre. Géométriquement parlant, le terminateur terrestre est un grand cercle qui ceinture le globe terrestre. Ce grand cercle s'étend dans un plan perpendiculaire au plan de l'orbite terrestre autour du soleil (appelé le plan de l'écliptique). On peut encore noter que le centre de la Terre se trouve sur la droite d'intersection entre ces deux plans.The duration of the day is the time included, each day, between the moment when the upper limb of the Sun appears to the east above the horizon, at sunrise, until its disappearance to the west below of the horizon, at sunset. Whatever the time, there is always half of the surface of the globe which is illuminated by the Sun, and another half which is in the shadow. The term terrestrial terminator is the line of demarcation between the part of the Earth which is illuminated and that which is in the shadow. Geometrically speaking, the terrestrial terminator is a large circle that surrounds the globe. This large circle extends in a plane perpendicular to the plane of the earth's orbit around the sun (called the plane of the ecliptic). We can still note that the center of the Earth is on the line of intersection between these two planes.
D'une façon générale, la durée du jour varie tout au long de l'année et dépend de la latitude. Cette variation est provoquée par l'inclinaison de l'axe de rotation de la Terre sur elle-même par rapport au plan de l'écliptique. Cette inclinaison correspond par définition à la latitude des tropiques qui est de ± 23° 27'. Comme on le sait bien, la durée du jour est au plus court lors du solstice de décembre dans l'hémisphère nord, et de juin dans l'hémisphère sud. Lors des équinoxes, la durée du jour est égale à celle de la nuit sur toute la Terre.In general, the length of the day varies throughout the year and depends on the latitude. This variation is caused by the inclination of the axis of rotation of the Earth on itself with respect to the plane of the ecliptic. This inclination corresponds by definition to the latitude of the tropics which is ± 23 ° 27 '. As is well known, the duration of the day is shortest during the December solstice in the northern hemisphere, and June in the southern hemisphere. At the equinoxes, the duration of the day is equal to that of the night on the whole Earth.
On connait déjà des pièces d'horlogerie agencées pour indiquer la position courante de la limite entre le jour et la nuit et qui correspondent à la définition donnée en préambule ci-avant. On en trouve notamment des descriptions dans les documents de brevet
En particulier, ces pièces d'horlogerie comprennent une came annuelle qui présente un profil représentatif de l'inclinaison du Soleil par rapport au plan équatorial et qui prévue pour être entraînée en rotation par le mouvement à raison d'une révolution par année. Un inconvénient de ces pièces d'horlogerie est qu'il peut être problématique de remettre la came annuelle en position exacte après un temps d'arrêt indéterminé de la pièce d'horlogerie.In particular, these timepieces comprise an annual cam which has a profile representative of the inclination of the Sun relative to the equatorial plane and which is intended to be rotated by the movement at the rate of one revolution per year. A disadvantage of these timepieces is that it can be problematic to return the annual cam to the exact position after an indefinite stop time of the timepiece.
Un but de la présente invention est de remédier aux inconvénients susmentionnés de l'art antérieur. L'invention atteint ce but en fournissant un mouvement horloger conforme à la revendication 1 annexée.An object of the present invention is to overcome the aforementioned drawbacks of the prior art. The invention achieves this goal by providing a watch movement according to the appended claim 1.
Conformément à l'invention, la pièce d'horlogerie comprend un mécanisme de calendrier agencé pour être entraîné par l'intermédiaire du mobile des heures et qui comporte des moyens pour afficher le quantième et des moyens pour afficher le mois. La pièce d'horlogerie comprend également une troisième chaîne cinématique qui relie le mobile des heures à la came annuelle par l'intermédiaire des moyens pour afficher le mois. Un premier avantage de cette caractéristique est qu'elle permet, après un temps d'arrêt indéterminé de la pièce d'horlogerie, de remettre automatiquement la came annuelle en position exacte sans erreur possible, par simple remise à la date du calendrier.According to the invention, the timepiece comprises a calendar mechanism arranged to be driven via the hours mobile and which comprises means for displaying the date and means to display the month. The timepiece also includes a third kinematic chain that connects the hours mobile to the annual cam via means for displaying the month. A first advantage of this feature is that it allows, after an indefinite stoppage time of the timepiece, to automatically reset the annual cam in the exact position without error, simply by the date of the calendar.
Conformément à l'invention, le mécanisme de calendrier est entraîné par le mobile des heures. Dans ces conditions, lorsque le porteur de la pièce d'horlogerie change l'indication de l'heure, par exemple pour la corriger, la correction de l'heure entraîne automatiquement la correction du mécanisme de calendrier et de la came annuelle.According to the invention, the calendar mechanism is driven by the hours motive. Under these conditions, when the wearer of the timepiece changes the indication of the time, for example to correct it, the correction of the time automatically causes the correction of the calendar mechanism and the annual cam.
D'autre part, conformément à l'invention, la troisième chaîne cinématique possède soit un rapport de transmission de 1/744ème (dans le cas où le mobile des heures est agencé pour être entraîné par la minuterie à la vitesse d'un tour en 12 heures), soit un rapport de transmission de 1/372ème (dans le cas où le mobile des heures est agencé pour être entraîné par la minuterie à la vitesse d'un tour en 24 heures).On the other hand, according to the invention, the third kinematic chain has either a transmission ratio of 1/744 th (in the case where the mobile hours is arranged to be driven by the timer at the speed of a lap in 12 hours), a transmission ratio of 1/372 th (in the case where the mobile hours is arranged to be driven by the timer at the rate of one revolution in 24 hours).
On peut vérifier que 372 correspond au nombre de jours qu'aurait l'année si tous les mois comptaient 31 jours (et 744 correspond à deux fois 372). On appelle quantième simple un mécanisme de calendrier pour lequel tous les mois ont 31 jours. Dans un quantième de ce type, il faut à la fin des mois ne comportant pas 31 jours, faire avancer manuellement l'aiguille ou le disque de quantième, afin de le mettre à jour. Quant au changement de l'indication du nom du mois, il peut se faire automatiquement à chaque fois que l'indication de la date passe du quantième 31 au quantième 1. L'homme du métier aura tendance à considérer que si la came annuelle n'est pas entraînée par l'intermédiaire des moyens pour afficher le quantième, l'écart entre l'heure réelle et la position courante du terminateur terrestre sur le globe va progressivement augmenter. Toutefois, si par exemple on fait avancer le quantième à la fin des mois n'ayant pas 31 jours en se servant de la mise à l'heure, cette opération de mise à la date ne risque pas de désynchroniser le calendrier et la came annuelle.We can check that 372 corresponds to the number of days that the year would have if each month had 31 days (and 744 corresponds to twice 372). A simple calendar is a calendar mechanism for which every month has 31 days. In a calendar of this type, it is necessary at the end of months not having 31 days, manually advance the needle or the date disk, to update it. As for the change of the indication of the name of the month, it can be done automatically each time the indication of the date passes from the 31st date to the date 1. The man of the trade will tend to consider that if the annual cam n is not driven by through the means to display the date, the difference between the real time and the current position of the terrestrial terminator on the globe will gradually increase. However, if, for example, the date is pushed forward at the end of the months that do not have 31 days using the time setting, this date setting operation is not likely to de-synchronize the calendar and the annual cam. .
Conformément à un mode de réalisation particulier de l'invention, le mouvement horloger comprend un mécanisme de correction été/hiver actionnable manuellement pour passer de l'heure d'été à l'heure d'hiver, ou inversement, en faisant pivoter le mobile des heures d'un pas en avant ou en arrière indépendamment du rouage de minuterie. L'homme du métier comprendra qu'un premier avantage de cette caractéristique est qu'elle permet d'effectuer la correction heure d'été/heure d'hiver sans que l'indication des minutes et l'indication des secondes ne soient affectées.According to a particular embodiment of the invention, the watch movement comprises a summer / winter correction mechanism manually operable to switch from summer time to winter time, or vice versa, by rotating the mobile hours of stepping forward or backward regardless of the clockwork. Those skilled in the art will understand that a first advantage of this characteristic is that it makes it possible to carry out the summer time / winter time correction without the indication of the minutes and the indication of the seconds being affected.
Conformément à une variante avantageuse du mode de réalisation susmentionné, le mécanisme actionnable manuellement est agencé pour faire pivoter le mobile des heures sans que cela n'affecte non plus l'indication de la position du terminateur terrestre sur la sphère. L'homme du métier comprendra qu'un avantage de cette caractéristique est qu'elle évite que la position du cercle relativement au globe terrestre ne change lorsque cela ne correspond pas à un déplacement réel du Soleil par rapport à la surface du globe.According to an advantageous variant of the aforementioned embodiment, the manually operable mechanism is arranged to rotate the mobile hours without this also affects the indication of the position of the terrestrial terminator on the sphere. Those skilled in the art will understand that an advantage of this feature is that it prevents the position of the circle relative to the earth from changing when it does not correspond to a real movement of the Sun relative to the surface of the globe.
D'autres caractéristiques et avantages de la présente invention apparaîtront à la lecture de la description qui va suivre, donnée uniquement à titre d'exemple non limitatif, et faite en référence aux dessins annexés dans lesquels :
- la
figure 1 est un schéma fonctionnel illustrant sommairement les liaisons cinématiques entre différents mécanismes d'une pièce d'horlogerie conforme à un premier mode de réalisation particulier de l'invention ; - la
figure 2 est un schéma fonctionnel illustrant sommairement les liaisons cinématiques entre différents mécanismes d'une pièce d'horlogerie conforme à un deuxième mode de réalisation particulier de l'invention ; - les
figures 3A et 3B sont respectivement une coupe et une vue d'un exemple de mécanisme, connu en tant que tel, qui comporte une première et une seconde roue des heures et un dispositif d'accouplement débrayable agencé pour solidariser en rotation et indexer, ou alternativement pour débrayer, les deux roues des heures.
- the
figure 1 is a block diagram illustrating briefly the kinematic links between different mechanisms of a timepiece according to a first particular embodiment of the invention; - the
figure 2 is a block diagram illustrating briefly the kinematic links between different mechanisms of a timepiece according to a second particular embodiment of the invention; - the
Figures 3A and 3B are respectively a section and a view of an exemplary mechanism, known as such, which comprises a first and a second hour wheel and a disengageable coupling device arranged to rotate and index, or alternatively to disengage, the two wheels of the hours.
La
Dans le schéma de principe de la
Conformément à l'invention, la pièce d'horlogerie illustrée comprend encore des moyens d'indication du lever et du coucher du Soleil en tenant compte des variations saisonnières, ces moyens comprenant une sphère reproduisant le globe terrestre, un support, et un cercle monté sur le support concentriquement à la sphère et qui est agencé pour indiquer la position du terminateur terrestre. Le cercle et la sphère sont agencés pour être entraînés de manière à tourner l'un par rapport à l'autre, au rythme d'un tour par 24 heures, autour d'un premier axe correspondant à l'axe polaire du globe terrestre. De plus, le cercle est monté sur le support de manière à pouvoir également pivoter relativement à la sphère selon un second axe croisant le premier axe perpendiculairement au centre de la sphère. Les moyens d'indication du lever et du coucher du Soleil comprennent encore une came annuelle présentant un profil représentatif de l'inclinaison du Soleil par rapport au plan équatorial et qui est agencée pour être entraînée en rotation à raison d'une révolution par année, un suiveur de came agencé pour coopérer avec la came, et une première chaîne cinématique agencée pour relier le suiveur de came au cercle de manière à ce que le plan sous-tendu par le cercle fasse avec le premier axe un angle égal à l'angle d'inclinaison du Soleil par rapport au plan équatorial. En se référant à nouveau à la
En se référant encore à la
Dans l'exemple illustré, le mobile des heures est agencé pour entraîner les moyens pour afficher le mois 125 par l'intermédiaire d'un rouage réducteur 118 qui ne passe pas par les moyens pour afficher le quantième 123. Le rouage réducteur 118 se présent comme suit : le mobile des heures 107 est solidaire en rotation d'un mobile réducteur (non représenté) qui comporte un pignon de 18 dents. Le pignon du mobile réducteur engrène avec une roue de 36 dents d'un premier mobile inter (référencé 119) qui donc est agencé pour accomplir un tour en 24 heures. Le premier mobile inter 119 comporte également deux doigts qui sont agencés pour, une fois par 24 heures, coopérer respectivement avec une des dents d'une étoile de quantième comportant 31 dents, et avec une des dents d'une étoile de 40 dents qui fait partie d'un deuxième mobile inter (non représenté), de manière à faire avancer d'un pas chacune des deux étoiles. Le deuxième mobile inter comporte également un pignon de 10 dents arrangé coaxialement avec l'étoile de 40 dents. Le pignon de 10 dents est agencé pour engrener avec une denture de 93 dents que présente un mobile annuel des moyens pour afficher le mois 125.In the illustrated example, the hours mobile is arranged to cause the means to display the
En se référant toujours à la
Conformément au mode de réalisation de l'invention illustré dans la
Conformément à l'invention, le mouvement de pivotement autour du deuxième axe est commandé à partir de la came annuelle 111 dont le profil est représentatif de l'inclinaison relative du Soleil au-dessus ou au-dessous du plan équatorial de la Terre. Le suiveur de came (non représenté) est agencé pour transmettre les variations dans le profil de la came à la coque hémisphérique 113 par l'intermédiaire d'une première liaison cinématique 112. Conformément au premier mode de réalisation de l'invention, l'ombre 113 en forme de demi-sphère est montée pivotante sur un support fixe, et l'agencement du mécanisme indicateur 115, comme celui de la première liaison cinématique 112, peuvent être conformes par exemple à ce qui est décrit dans le document de
En se référant toujours à la
Dans l'exemple illustré, lors du passage de l'heure d'hiver à l'heure d'été ou de l'heure d'été à l'heure d'hiver, le porteur de la pièce d'horlogerie peut décaler l'indication de l'heure d'exactement une heure en avant ou en arrière en actionnant le poussoir P2. Lorsqu'il est actionné, le poussoir P2 n'agit pas uniquement sur le mécanisme de correction du fuseau horaire 101, mais également sur un mécanisme de débrayage 133, de manière à débrayer la deuxième chaîne cinématique 120 qui est agencée pour entraîner la Terre en rotation au rythme d'un tour en 24 heures. On comprendra que le fait de débrayer la deuxième chaîne cinématique évite que la position angulaire relative de l'ombre 113 par rapport à la sphère 117 ne soit affectée par les transitions entre heure d'été et heure d'hiver.In the illustrated example, during the transition from winter time to summer time or from summer time to winter time, the wearer of the timepiece can shift the time. indication of the time exactly one hour forward or backward by operating the pusher P2. When actuated, the pusher P2 does not act solely on the mechanism of correction of the
Outre le mécanisme de correction du fuseau horaire 101 déjà mentionné, la pièce d'horlogerie du présent exemple comporte une mise à l'heure de type traditionnel. Cette mise à l'heure permet au porteur de la pièce d'horlogerie de la mettre à l'heure à l'aide de la tige de commande 131 de la pièce d'horlogerie. Pour ce faire, il doit amener la tige 131 dans position T3 avant de faire tourner la couronne. Comme dans la plupart des pièces d'horlogerie courantes, la mise à l'heure est agencée pour entraîner le rouage de minuterie 106 qui entraîne à son tour le mobile des minutes 105 et le mobile des heures 107. A l'instar de ce qui était déjà le cas lors de la correction du fuseau horaire, le mobile des heures 107 entraîne le mécanisme d'affichage du mois 125 et la came annuelle 111 par l'intermédiaire de la troisième chaîne cinématique 118. De plus, le mobile des heures 107 entraîne également le mécanisme de quantième 123 et la Terre dans sa rotation autour du premier axe. On comprendra donc que la came annuelle 111, le calendrier 123 125 et le mécanisme indicateur du lever et/ou du coucher du Soleil 115, sont agencés de manière à avancer de manière synchrone, également lorsqu'ils sont entraînés manuellement en avant ou en arrière à l'aide de la tige de commande 131 en position T3.In addition to the time
Finalement, le mécanisme de calendrier de la pièce d'horlogerie du présent mode de réalisation comporte également un mécanisme correcteur du mois. Lorsque le porteur de la pièce d'horlogerie désire corriger l'indication du mois, par exemple suite à un temps d'arrêt indéterminé de la pièce d'horlogerie, il peut décaler pas-à-pas l'indication du mois en avant ou en arrière en actionnant le poussoir P1. Comme dans le présent exemple, le mobile annuel des moyens pour afficher le mois 125 porte également la came annuelle 111, cette dernière avance de manière synchrone avec l'indication de la date, même lorsque l'indication du mois est changée à l'aide du correcteur de mois.Finally, the timing mechanism of the timepiece of the present embodiment also includes a month corrector mechanism. When the wearer of the timepiece wishes to correct the indication of the month, for example following a downtime indeterminate of the timepiece, it can shift step by step indication of the month forward or backward by operating the pusher P1. As in the present example, the annual mobile means for displaying the
La
Dans l'exemple illustré, le mobile des heures 207 entraîne la came annuelle par l'intermédiaire d'une troisième chaîne cinématique 218 qui peut éventuellement être identique à la chaîne cinématique 118 décrite ci-dessus en relation avec le premier mode de réalisation exemplaire.In the illustrated example, the hours mobile 207 drives the annual cam via a third
Dans le deuxième mode de réalisation, comme dans le premier, le mouvement relatif de la demi-sphère 213 et de la sphère 217 est le résultat de la composition de rotations distinctes selon deux axes perpendiculaires se croisant au centre de la sphère. Toutefois, conformément au deuxième mode de réalisation, c'est l'ombre en forme de demi-sphère 213 qui effectue simultanément les deux rotations, la sphère 217 n'étant pas entraînée. Ce mode de fonctionnement est rendu possible par le fait que le support (non représenté) sur lequel est montée l'ombre 213 est un support rotatif. En se référant toujours à la
En se référant à nouveau à la
En se référant encore à la
En se référant maintenant aux
Le canon intérieur 2 forme donc un canon des heures, et il supporte une première roue extérieurement dentée 6, dite roue inférieure, comportant une planche 7. On précisera ici que de façon avantageuse cette roue inférieure 6 forme une roue des heures, et elle engrène avec une roue 8 (partiellement représentée) du rouage de minuterie 106. En fonctionnement normal, cette roue des heures 6 reçoit une information horaire délivrée par la roue 8 de la minuterie, information qu'elle transmet, comme on le comprendra ci-après, indirectement au canon intérieur des heures 2 et à l'aiguille indicatrice 4. En effet, la roue inférieure des heures 6 est montée libre en rotation sur le canon des heures 2. Pour cela, le canon des heures 2 comporte à son extrémité qui est opposée à son extrémité libre portant l'aiguille 4, une collerette 10 formant un épaulement supportant librement une étoile 12 sur laquelle est maintenue fixement la roue 6. L'étoile 12 comporte une planche 13, une denture extérieure 14 et un collet circulaire 16 ménagé à chant de façon adjacente à la denture 14, derrière et de façon coaxiale à celle-ci, sous la planche 13.The
La roue des heures 6 est maintenue fixement sur l'étoile 12 à flanc contre sa denture 14. En effet, la roue des heures 6 par l'intermédiaire de la partie centrale de sa planche 7 qui présente un alésage débouchant, est engagée à force extérieurement sur le collet 16, par chassage et/ou par rivetage. L'étoile 12 et la roue des heures 6 sont donc directement solidaires en rotation et, dans cet exemple, elles ne forment, grâce à leur montage, qu'une seule pièce rapportée sur le canon des heures 2. L'étoile 12 et la roue des heures 6 peuvent donc se déplacer ensemble de façon concomitante sous l'effet de la roue 8 de la minuterie.The
Le mécanisme de correction été/hiver comporte de plus deux galets d'entraînement 20 qui sont étagés et qui présentent chacun une embase cylindrique 22 à partir de laquelle s'étend de façon normale un tenon 24. Les galets sont engagés tous deux au repos, par leur embase 22, dans la denture 14 de l'étoile 12 et ils reposent librement et latéralement par cette embase contre le flanc, non référencé, de la planche 7 de la roue des heures 6. Cette position de repos est de même représentée en vue de dessus à la
Le mécanisme de correction été/hiver comporte de plus un second canon 30, dit canon extérieur, qui comporte un alésage de guidage 31 et qui est fixé extérieurement par cet alésage 31 sur le premier canon 2. Ce second canon 30 supporte une seconde roue extérieurement dentée 32 disposée au-dessus de la roue inférieure des heures 6 et dite roue supérieure. On précisera ici que les positions supérieure et inférieure des roues 6 et 32 sont prises en référence au dessin de la
La roue supérieure 34 forme donc une roue de correction été/hiver permettant, comme on le comprendra, de corriger directement la position du canon des heures 2 et de l'aiguille indicatrice 4, sans agir sur la minuterie et donc sans perturber les autres informations horaires, telles que la minute et la seconde, qui sont normalement liées cinématiquement au canon des heures 2 via ladite minuterie. De façon avantageuse, le canon extérieur 30 sont montés à force par chassage extérieurement sur le canon intérieur des heures 2 et il est donc fixé à celui-ci. Ces deux canons sont donc solidaires en rotation et ils peuvent se déplacer ensemble. On comprendra que le canon des heures 2, le canon extérieur 30 et la roue supérieure 34 forment ensemble le mobile des heures 107. La roue supérieure de correction 34 peut donc agir sur le canon intérieur des heures 2 par l'intermédiaire du canon extérieur 30.The
On précisera que le canon des heures 2 est de plus entraîné en fonctionnement normal par la minuterie 106, et notamment par la roue 8 de la minuterie. C'est pourquoi dans la planche 33 de la roue de correction 32 sont ménagées des rainures radiales 36 dans lesquelles sont engagés librement les tenons 24 qui peuvent se translater radialement dans celles-ci. Les galets 20 peuvent donc entraîner en rotation la roue de correction 32, et les deux canons 2 et 30, lorsque l'étoile 12 est elle-même entraînée par la roue des heures 6.It will be noted that the clock of the
Pour le passage sur un autre fuseau horaire, l'utilisateur de la pièce d'horlogerie doit mettre en rotation la roue de correction 34, les galets 20 sont alors déplacés angulairement et (alors que l'étoile 12 et la roue des heures 7 restent fixes) sautent dans la denture 14 de l'étoile 12 en ovalisant le ressort 26. Les galets 20 reviennent ensuite dans la denture 14 de l'étoile 12, en position de repos, mais de façon décalée par rapport à la position de la
On comprendra en outre que diverses modifications et/ou améliorations évidentes pour un homme du métier peuvent être apportées aux modes de réalisation qui font l'objet de la présente description sans sortir du cadre de la présente invention définie par les revendications annexées.It will be further understood that various modifications and / or improvements obvious to those skilled in the art can be made to the embodiments which are the subject of the present description without departing from the scope of the present invention defined by the appended claims.
Claims (18)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP16206811.8A EP3339971B1 (en) | 2016-12-23 | 2016-12-23 | Timepiece comprising a day/night display taking into account seasonal variations |
US15/835,518 US10775745B2 (en) | 2016-12-23 | 2017-12-08 | Timepiece comprising a day/night display that takes account of seasonal variations |
JP2017237458A JP6473799B2 (en) | 2016-12-23 | 2017-12-12 | Clock with day and night display that takes into account seasonal variations |
CN201711406622.4A CN108241283B (en) | 2016-12-23 | 2017-12-22 | Timepiece comprising day/night display means taking into account seasonal variations |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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EP16206811.8A EP3339971B1 (en) | 2016-12-23 | 2016-12-23 | Timepiece comprising a day/night display taking into account seasonal variations |
Publications (2)
Publication Number | Publication Date |
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EP3339971A1 true EP3339971A1 (en) | 2018-06-27 |
EP3339971B1 EP3339971B1 (en) | 2019-08-28 |
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Application Number | Title | Priority Date | Filing Date |
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EP16206811.8A Active EP3339971B1 (en) | 2016-12-23 | 2016-12-23 | Timepiece comprising a day/night display taking into account seasonal variations |
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US (1) | US10775745B2 (en) |
EP (1) | EP3339971B1 (en) |
JP (1) | JP6473799B2 (en) |
CN (1) | CN108241283B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3731028A1 (en) * | 2019-04-24 | 2020-10-28 | Patek Philippe SA Genève | Device for displaying summer time as well as the time of sunrise and/or the time of sunset |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2021037967A1 (en) * | 2019-08-29 | 2021-03-04 | Complitime Sa | Mechanism for moving an object for a jewellery or costume jewellery item |
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EP3007012A1 (en) | 2014-10-07 | 2016-04-13 | The Swatch Group Research and Development Ltd. | Timepiece capable of indicating the sunrise or sunset at any point on the globe |
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US1997511A (en) * | 1932-05-02 | 1935-04-09 | Canepa Christopher | Astronomical watch |
US5132943A (en) * | 1991-12-03 | 1992-07-21 | Davies Edward R | World globe and drive arrangement |
CH684619B5 (en) * | 1992-07-17 | 1995-05-15 | Longines Montres Comp D | Timepiece universal time display. |
CN2206466Y (en) * | 1994-04-27 | 1995-08-30 | 张恒敬 | Multipurpose clock with indicating different local apparent time |
US6603709B2 (en) * | 1999-12-23 | 2003-08-05 | Miguel Guillermo Ochoa Loaiza | World globe pocket clock and world globe desk clock |
EP2447789B1 (en) * | 2010-11-02 | 2013-08-07 | Société anonyme de la Manufacture d'Horlogerie Audemars Piguet & Cie | Calendar display device and calendar watch |
EP2503410B1 (en) * | 2011-03-22 | 2014-05-21 | Montres Breguet SA | Calendar mechanism comprising a quick month corrector |
EP2503407B1 (en) * | 2011-03-23 | 2017-06-28 | Montres Breguet SA | Timepiece movement comprising an instant actuator controlled by the movement |
EP2728420B1 (en) * | 2012-11-06 | 2018-01-03 | Montres Breguet SA | Astronomical watch |
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2016
- 2016-12-23 EP EP16206811.8A patent/EP3339971B1/en active Active
-
2017
- 2017-12-08 US US15/835,518 patent/US10775745B2/en active Active
- 2017-12-12 JP JP2017237458A patent/JP6473799B2/en active Active
- 2017-12-22 CN CN201711406622.4A patent/CN108241283B/en active Active
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
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US2023677A (en) * | 1931-10-30 | 1935-12-10 | Edward R Fowler | Time globe |
US3305946A (en) * | 1964-12-02 | 1967-02-28 | Gardin Tristan Du | Apparatus simulating the illumination of earth by the sun at any time and date |
US4102121A (en) * | 1976-11-08 | 1978-07-25 | Veazey Robert W | Three dimensional time piece |
US7012855B1 (en) * | 1999-12-23 | 2006-03-14 | Miguel Guillermo Ochoa Loaiza | World globe pocket clock and world globe desk clock |
EP2911013A1 (en) | 2014-02-20 | 2015-08-26 | The Swatch Group Research and Development Ltd. | Timepiece capable of indicating the sunrise or sunset at any point on the globe |
EP2977832A1 (en) | 2014-07-23 | 2016-01-27 | The Swatch Group Research and Development Ltd. | Timepiece capable of indicating the sunrise or sunset at any point on the globe |
EP3007012A1 (en) | 2014-10-07 | 2016-04-13 | The Swatch Group Research and Development Ltd. | Timepiece capable of indicating the sunrise or sunset at any point on the globe |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3731028A1 (en) * | 2019-04-24 | 2020-10-28 | Patek Philippe SA Genève | Device for displaying summer time as well as the time of sunrise and/or the time of sunset |
Also Published As
Publication number | Publication date |
---|---|
CN108241283A (en) | 2018-07-03 |
US10775745B2 (en) | 2020-09-15 |
CN108241283B (en) | 2020-06-09 |
US20180181069A1 (en) | 2018-06-28 |
JP2018105856A (en) | 2018-07-05 |
EP3339971B1 (en) | 2019-08-28 |
JP6473799B2 (en) | 2019-02-20 |
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