EP1536299A1 - Calendar mechanism for a watch comprising two superposed date annuli - Google Patents

Calendar mechanism for a watch comprising two superposed date annuli Download PDF

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Publication number
EP1536299A1
EP1536299A1 EP03027146A EP03027146A EP1536299A1 EP 1536299 A1 EP1536299 A1 EP 1536299A1 EP 03027146 A EP03027146 A EP 03027146A EP 03027146 A EP03027146 A EP 03027146A EP 1536299 A1 EP1536299 A1 EP 1536299A1
Authority
EP
European Patent Office
Prior art keywords
ring
teeth
date
rings
toothing
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.)
Granted
Application number
EP03027146A
Other languages
German (de)
French (fr)
Other versions
EP1536299B1 (en
Inventor
Roger Willemin
Roger Metzger
Marco Bettelini
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ETA SA Manufacture Horlogere Suisse
Original Assignee
ETA SA Manufacture Horlogere Suisse
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ETA SA Manufacture Horlogere Suisse filed Critical ETA SA Manufacture Horlogere Suisse
Priority to EP03027146A priority Critical patent/EP1536299B1/en
Priority to DE60332637T priority patent/DE60332637D1/en
Priority to SG200407205A priority patent/SG112097A1/en
Priority to TW093135279A priority patent/TW200519553A/en
Priority to US10/992,695 priority patent/US6925032B2/en
Priority to KR1020040096652A priority patent/KR101067067B1/en
Priority to CN2004100917337A priority patent/CN1621975B/en
Priority to JP2004341913A priority patent/JP4523835B2/en
Publication of EP1536299A1 publication Critical patent/EP1536299A1/en
Priority to HK05109890.7A priority patent/HK1077883B/en
Application granted granted Critical
Publication of EP1536299B1 publication Critical patent/EP1536299B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • 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
    • G04B19/25—Devices for setting the date indicators manually

Definitions

  • the present invention relates to a date mechanism with a large date comprising two superposed date rings, respectively upper and lower, one of which carries fifteen successive markings of a cycle of 31 positions, while the other carries the other sixteen markings.
  • Counter metering and cyclic display devices used in calendar timepieces for displaying the date are already known.
  • the analog display of the date is conventionally made using a date ring which has 31 sectors bearing the markings from 1 to 31.
  • a device has the disadvantage of not offering, for each sector, a field whose size corresponds to a 31 th of the circumference of the ring.
  • the dimensions of this field are insufficient to allow an easily readable date display.
  • the need for a device to display a "large date" on a field much wider than a 31 th circumference has been felt.
  • the Brandi patent teaches a date mechanism comprising mainly a date ring greater than sixteen sectors, superimposed on a lower ring with seventeen sectors.
  • the upper ring bears on fifteen of its sectors markings "17" to "31” while the last sector is equipped of a window.
  • the lower ring has on sixteen of its sectors the markings "1" to "16", while the last sector is free of marking.
  • the circumference inside of the two rings has teeth, a place for the upper ring and a place for the lower ring being toothless.
  • a training finger of date classically making a turn every twenty-four hours, coaching the calendar rings in a classical way, by action on their teeth.
  • the driving position of the finger relative to the teeth of the rings is such that, when a ring has its free position (aperture for the upper ring and sector free of marking for the lower ring) at the display location of the shows, the finger drive is in front of the tooth-free position of the ring concerned.
  • the Brandi patent provides a date mechanism for a timepiece which advantageously makes it possible to give the date indication a large format, substantially double that of a conventional date mechanism.
  • This date mechanism is animated by a finger drive that makes a ride every twenty-four hours and which drives the date rings by action on their teeth.
  • a correction device that would allow quickly change the indication provided by the date mechanism.
  • it poses a problem with regard to the positioning of the rings of calendar. Indeed, according to the Brandi patent, two arresting devices by Jumping effect acts respectively on the teeth of the upper ring and on the teeth of the lower ring.
  • the present invention aims to overcome the disadvantages mentioned above and others by providing a date mechanism to give the date indication a large format, this mechanism comprising two superposed rings, respectively upper and lower, whose one carries fifteen successive markings of a cycle of 31 positions, while the other carries the other sixteen markings, a rapid correction device allowing quickly change the indication provided by the date mechanism.
  • Another object of the present invention is to provide a mechanism for date of the above-mentioned kind comprising a device for stopping by jumper allowing to properly position the two rings.
  • the present invention relates to a date mechanism for timepiece such as a wristwatch comprising two rings of superposed date, respectively upper and lower, the surface of which divides into a plurality of sectors, the upper ring comprising sixteen sectors, fifteen of which respectively bear fifteen successive markings of a cycle of 31 positions, and the sixteenth of which is a surplus sector with a window open or transparent, while the lower ring comprises seventeen sectors of which sixteen respectively carry the other sixteen markings of the 31-position cycle, and of which the seventeenth is a surplus sector, each of these rings co-operating with means of training in such a way that the markings of the ring below appear successively in a display area through the window, the upper ring remaining stationary, then that, the lower ring being immobile, the markings of the upper ring appear successively in the display area, the upper ring covering the markings of the lower ring, the date mechanism being characterized in that each ring comprises two peripheral teeth each made of a succession of teeth regularly spaced, these peripheral teeth extending in two rows tie
  • the present invention provides a mechanism for calendar comprising two superposed calendar rings and a device for quick fix to quickly change the information provided by the date mechanism.
  • the correction device is in look at the toothless place of the teeth of this ring.
  • correction device can only act on the other ring, so that the risks to disrupt the date mechanism are avoided.
  • the correction device includes a sliding pinion.
  • the sliding gear does not mesh with the teeth of the date rings only when it is set in motion by the user by means of a correction rod.
  • the mechanism of date includes means for jumper locking, the ring of lower date including additional teeth located under the teeth of this ring and whose teeth are arranged in coincidence with those of said lower toothing. Thanks to these characteristics, the stop device by jumper effect is simple to manufacture and allows proper positioning of both date rings. Indeed, unlike the prior art where, because of the fact that a place in the toothing of each of the calendar rings is devoid of tooth, the jumpers must be double-pointed and press between the points of three successive teeth, the jumpers according to the invention are constantly housed between two successive teeth of one or other of the teeth of a given ring, so that they stay in touch with the date ring concerned, even when passing the missing tooth.
  • the jumpers according to the invention therefore terminate classically by two inclined planes that support between the tips of two teeth immediately to keep the date rings in the desired position.
  • These necklaces are therefore of classic design and exert on the rings of date a holding force of constant intensity, whatever the position of said rings.
  • the present invention proceeds from the general inventive idea of to provide a date mechanism for a timepiece comprising on the one hand a training wheel making a turn every twenty-four hours and coaching the rings of date by action on their teeth, and secondly a device of correction allowing rapid modification of the indications provided by the date mechanism.
  • the date rings each comprise two inner peripheral teeth, one of which is for to cooperate with the drive wheel, while the other cooperates with the device correction.
  • a place in each of these teeth is devoid of tooth to define an extended rest position of the considered ring.
  • this Another object of the invention is to provide a calendar mechanism of the kind described above which the device for arresting by jumping effect comprises two little jumpers bulky, simple to manufacture and guaranteeing an adequate positioning of date rings.
  • each of the two date rings comprises two sets of teeth whose teeth are superimposed, the location of the missing tooth for the two teeth not being the same, so that the jumpers are constantly housed between two teeth successive teeth of one or the other of the teeth of a given ring and therefore remain in taken with the date ring concerned, even when passing the tooth missing.
  • FIG. 1 is a view from above of a watch movement comprising a date mechanism according to the invention.
  • the date mechanism according to the invention mainly comprises a ring of upper date 4 superimposed on a lower date ring 6.
  • the ring of upper date 4 has sixteen sectors, while the date ring lower 6 to seventeen sectors.
  • the upper ring 4 bears on fifteen of its sectors markings "17" to "31", while the last sector is provided an open or transparent window 8.
  • the lower ring 6 has meanwhile on Sixteen of its sectors markings "1" to "16", while the last sector is free marking.
  • the inner circumference of the upper date ring 4 comprises a toothing formed of a succession of regularly spaced teeth.
  • this single toothing is formed of two teeth upper and lower stages, whose teeth are respectively 10 and 12 superimposed, a place 14 of the upper toothing and a place 16 of the lower toothing being toothless (see Figure 4).
  • the inner circumference of the lower date ring 6 has two peripheral teeth each made of a succession of teeth regularly spaced, these peripheral teeth extending in two ranks staged, respectively upper and lower, the teeth 18 of the upper row being staggered relative to the teeth of the lower row (see Figure 5).
  • the toothing of the lower row is formed of two upper and lower staggered teeth whose teeth, designated respectively by 20 and 22, are superimposed.
  • a place 24 of the toothing upper and a place 26 of the lower toothing are toothless.
  • the date mechanism comprises a date drive wheel 28 making a turn all the twenty-four hours and that drives the rings of date 4 and 6 by action on the teeth 10 and 20 of the upper toothing of said upper ring 4 and the toothing lower part of said lower ring 6.
  • the position of the drive wheel 28 by ratio to the upper and lower teeth respectively of the upper rings 4 and lower 6 is such that when one of these rings presents its free position (window 8 for the upper ring 4 and unmarked sector for the ring lower 6) at the display location 30 of the watch movement 1 (dial window supposedly removed and that would occupy the position where we see the figure "16"), the wheel 28 is in front of the missing tooth, respectively 14 or 26, of the upper toothing of the upper ring 4 or the lower toothing of the lower ring 6.
  • the date mechanism also comprises a correction device for rapidly changing the indication provided by said date mechanism.
  • this correction device comprises a sliding pinion 32.
  • This sliding pinion 32 is actuated by the user by means of a correction rod 33 and causes the date rings 4 and 6 by action on the teeth 12 and 18 of the lower toothing said upper ring 4 and the upper toothing of said lower ring 6.
  • the position of the sliding pinion 32 with respect to the teeth respectively lower and upper ring 4 and lower 6 is such that when one of these rings presents its free position at the display location 30 of the movement of shows, the sliding pinion 32 is in front of the missing tooth, respectively 16 or 24, of the lower toothing of the upper ring 4 or the upper teeth of the lower ring 6.
  • a jumper device 34 comprises two jumpers 36 and 38 which cooperate respectively with the teeth 10, 12 of the upper teeth and lower part of the upper ring 4 and with the teeth 20, 22 of the lower teeth and 6.
  • the jumpers 36 and 38 according to the invention are constantly housed between two teeth immediately successive of one or other of the teeth of a ring given, so that they stay in touch with the same date ring concerned when passing the missing tooth.
  • the date rings 4 and 6 present each a stop, respectively 40 and 42.
  • Figures 4 and 5 show the detail of this arrangement.
  • the stop 40 extends perpendicular to the plane of the ring of upper date 4, while the stop 42 extends radially out of the perimeter outside the lower date ring 6.
  • the date ring upper 4 has its window 8 at the display location 30 and simultaneously its missing teeth 14 and 16 vis-a-vis respectively of the drive wheel 28 and of the sliding pinion 32.
  • the missing teeth 14 and 16 define a rest position of the upper date ring 4, a position in which neither the drive wheel 28 nor the sliding pinion 32 can act on said ring date of upper date 4.
  • the drive wheel 28 therefore drives only the lower date ring 6 which, to achieve the position shown, has been conducted successively in situations where he exhibited the markings "11", "12", ..., "15” and finally "16". At the moment when the marking "16" appears, the stop 42 arrives against the stop 40.
  • the upper ring 4 will be also driven, so that the window 8 will disappear from the display location 30 to make way for the marking "17" of the upper ring 4.
  • the lower ring 6 which will present its missing teeth in front, respectively, of the drive wheel 28 and the sliding pinion 32.
  • the missing teeth 24 and 26 of the lower ring 6 define a rest position of this ring 6, position in which neither the drive wheel 28, neither the sliding pinion 32 can act on said lower date ring 6.
  • the relative displacement of the two calendar rings upper 4 and lower 6 would be the same if they were driven not by the wheel 28, but by the sliding pinion 32 actuated by the user via the rod 33.
  • the two rings 4 and 6 would simply turn faster, allowing the user to quickly correct the indication provided by the mechanism of date.
  • the position of the sliding pinion 32 is such that, when the upper ring 4 has its free position at the display location 30, the sliding pinion 32 is in front of the missing tooth 16 of the toothing lower part of the upper ring 4, whereas when the lower ring 6 presents its free position at the display location 30, the sliding pinion 32 is in front of the missing tooth 24 of the upper toothing of the lower ring 6.
  • the sliding pinion 32 does not come into mesh with the teeth of the date rings that when put into motion by the user by means of of the correction rod 33. During normal operation of the mechanism of date, the sliding pinion 32 occupies a position away from the rings of date 4 and 6.
  • the drive wheel 28 causes the date rings 4 and 6 by means of a finger presenting a certain elasticity, so that when one of the rings 4 or 6 is driven by the sliding pinion 32, the finger is erased in front of the tooth that is passing it and falls into the hollow defined by this tooth and the next tooth.
  • FIG. 7 is an exploded view of the watch movement 1 equipped with the date mechanism according to the invention.
  • This movement 1 includes platinum 2 which supports and rotates the two lower date rings 6 and 4.
  • In the center of the plate 2 is the axis of the wheel 44 hours on which is engaged the hour wheel 46.
  • a bridge 48 carries the device stop 34 with its two jumpers 36 and 38 acting respectively on the upper date ring 4 and the lower date ring 6.
  • the wheel 28 includes a wheel 50 driven, via a mobile gear reducer not shown, by the hour wheel 46 so as to perform a complete turn in twenty-four hours.
  • Two fingers 52 and 54 are fixed, for example by welding, on the wheel 50.
  • the drive wheel 28 is freely mounted on an axis 56 of the bridge 48. even the sliding pinion 32 is mounted on the bridge 48 via an axis 58. Said sliding pinion 32 is connected to the correction rod 33 by a chain kinematic comprising deflection wheels 60 and 62 and a pinion 64. Finally, the date mechanism according to the invention is held axially on the plate 2 to means of a holding plate 66 fixed with screws 68.
  • FIG. 8 is a developed representation of the teeth of the rings of upper 4 and lower 6.
  • the upper date ring 4 has sixteen teeth identified by the numbers 1, 2, ..., 15 and 16, while the lower date ring 6 comprises seventeen teeth identified by the numbers 1, 2, ..., 16 and 17.
  • the upper ring 4 comprises therefore 16 divisions, while the lower ring has 17 divisions.
  • the upper date ring 4 has two serrated teeth whose teeth, designated respectively by 10 and 12, are superimposed, a place 14 of the upper toothing and a location 16 of the lower toothing, each materialized by a circle in solid line, being toothless.
  • the lower date ring 6 also has two teeth staggered teeth, designated respectively by 18 and 20, are staggered place 24 of the upper toothing and a place 26 of the lower toothing, each materialized by a circle in solid line, being toothless.
  • the ring of lower date 6 further comprises additional teeth whose teeth 22 coincide with the teeth 20 of the lower toothing.
  • the position of the drive wheel 28 and that of the sliding gear 32 vis-à-vis the teeth of the upper date ring 4 and lower 6 are identified by line segments A-A and B-B respectively.
  • the two jumpers 36 and 38 are represented by two rectangles with the same references digital. As can be seen from the drawing, the height of the two jumpers 36 and 38 is equal to the thickness of the upper and lower teeth, respectively lower and additional upper date rings 4 and lower 6 with which said jumpers cooperate.
  • the upper date ring 4 presents its two missing teeth 14 and 16 vis-à-vis respectively of the wheel 28 and the sliding pinion 32.
  • This position corresponds to the situation in which the upper ring 4 has its window 8 at the display location 30 of the movement and reveals the figure "16" carried by the lower ring 6.
  • the marking "16” the stop 42 of the lower ring 6 abuts against the stop 40 of the upper ring 4.
  • the upper ring 4 will be also driven. It will then be the lower ring 6 which will present its teeth missing 24 and 26 next to, respectively, the drive wheel 28 and the sliding gear 32, while the missing teeth 14 and 16 of the upper ring 4 will have taken a step forward.
  • the height of the two jumpers 36 and 38 is substantially equal to the thickness of the teeth 10, 12 and 20, 22 so that even when missing teeth, said jumpers are always engaged between two immediately consecutive teeth of the teeth of the upper disks and lower, ensuring proper positioning of these discs.
  • the present invention is not limited to the embodiment which has just been described, and that various modifications and simple variants can be contemplated by those skilled in the art without departing from the scope of the present invention.
  • the upper date ring could have seventeen sectors, while the lower date ring has only sixteen.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)

Abstract

The mechanism has two superposed upper (4) and lower (6) date rings whose surface is divided into a set of sectors. The upper ring has sixteen sectors, and the lower ring has seventeen sectors. A correction device alters an indication provided by the mechanism, position of a drive unit with respect to upper and lower toothings of the respective rings and position of a correction mechanism with respect to the toothings.

Description

La présente invention concerne un mécanisme de quantième à grande date comprenant deux anneaux de quantième superposés, respectivement supérieur et inférieur, dont l'un porte quinze marquages successifs d'un cycle de 31 positions, tandis que l'autre porte les seize autres marquages.The present invention relates to a date mechanism with a large date comprising two superposed date rings, respectively upper and lower, one of which carries fifteen successive markings of a cycle of 31 positions, while the other carries the other sixteen markings.

Des dispositifs de comptage et d'affichage cyclique à guichet utilisés dans des pièces d'horlogerie à calendrier pour l'affichage du quantième sont déjà connus. Habituellement, l'affichage analogique du quantième est classiquement réalisé à l'aide d'un anneaux de quantième qui comporte 31 secteurs portant les marquages de 1 à 31. Un tel dispositif présente toutefois l'inconvénient de n'offrir, pour chaque secteur, qu'un champ dont la dimension correspond à un 31ème de la circonférence de l'anneau. En particulier dans les montres-bracelets de petits formats, les dimensions de ce champ sont insuffisantes pour permettre un affichage de quantième aisément lisible. Le besoin d'un dispositif permettant l'affichage d'un "grand quantième" sur un champ nettement plus large qu'un 31ème de circonférence s'est donc fait sentir.Counter metering and cyclic display devices used in calendar timepieces for displaying the date are already known. Usually, the analog display of the date is conventionally made using a date ring which has 31 sectors bearing the markings from 1 to 31. However, such a device has the disadvantage of not offering, for each sector, a field whose size corresponds to a 31 th of the circumference of the ring. Especially in small format wristwatches, the dimensions of this field are insufficient to allow an easily readable date display. The need for a device to display a "large date" on a field much wider than a 31 th circumference has been felt.

Une première solution à ce problème a été apportée par la demande de brevet suisse CH 660 941 au nom de Brandi dont le but est de fournir un dispositif de comptage et d'affichage cyclique à guichet pour quantième de montre qui, tout en étant purement mécanique et d'une configuration simple, permet de donner à l'indication de quantième un grand format, au moins approximativement double de celui d'un 31ème de circonférence.A first solution to this problem was provided by the Swiss patent application CH 660 941 in the name of Brandi, the purpose of which is to provide a counting device and cyclic display with a window for a watch date which, while being purely mechanical and a simple configuration, allows to give the date indication a large format, at least approximately double that of a 31 th of circumference.

A cet effet, le brevet Brandi enseigne un mécanisme de quantième comportant principalement un anneau de quantième supérieur à seize secteurs, superposé à un anneau inférieur comportant dix-sept secteurs. L'anneau supérieur porte sur quinze de ses secteurs les marquages "17" à "31" tandis que le dernier secteur est muni d'une fenêtre. L'anneau inférieur comporte sur seize de ses secteurs les marquages "1" à "16", tandis que le dernier secteur est libre de marquage. La circonférence intérieure des deux anneaux comporte des dents, un endroit pour l'anneau supérieur et un endroit pour l'anneau inférieur étant dépourvus de dent. Un doigt d'entraínement de quantième, faisant classiquement un tour toutes les vingt-quatre heures, entraíne les anneaux de quantième d'une façon classique, par action sur leurs dents. La position du doigt entraíneur par rapport à la denture des anneaux est telle que, lorsqu'un anneau présente sa position libre (guichet pour l'anneau supérieur et secteur exempt de marquage pour l'anneau inférieur) à l'endroit d'affichage de la montre, le doigt d'entraínement se trouve en face de la position exempte de dent de l'anneau concerné.For this purpose, the Brandi patent teaches a date mechanism comprising mainly a date ring greater than sixteen sectors, superimposed on a lower ring with seventeen sectors. The upper ring bears on fifteen of its sectors markings "17" to "31" while the last sector is equipped of a window. The lower ring has on sixteen of its sectors the markings "1" to "16", while the last sector is free of marking. The circumference inside of the two rings has teeth, a place for the upper ring and a place for the lower ring being toothless. A training finger of date, classically making a turn every twenty-four hours, coaching the calendar rings in a classical way, by action on their teeth. The driving position of the finger relative to the teeth of the rings is such that, when a ring has its free position (aperture for the upper ring and sector free of marking for the lower ring) at the display location of the shows, the finger drive is in front of the tooth-free position of the ring concerned.

Le brevet Brandi procure un mécanisme de quantième pour pièce d'horlogerie qui permet avantageusement de donner à l'indication de quantième un grand format, sensiblement le double de celui d'un mécanisme de quantième classique. Ce mécanisme de quantième est animé par un doigt d'entraínement qui fait un tour toutes les vingt-quatre heures et qui entraíne les anneaux de quantième par action sur leurs dents. Il n'est cependant pas prévu de dispositif de correction qui permettrait de modifier rapidement l'indication fournie par le mécanisme de quantième. En outre, il se pose un problème en ce qui concerne le positionnement des anneaux de quantième. En effet, conformément au brevet Brandi, deux dispositifs d'arrêtage par effet de sautoir agissent respectivement sur les dents de l'anneau supérieur et sur les dents de l'anneau inférieur. Mais, compte tenu du fait qu'un endroit de la denture de chacun de ces anneaux est dépourvu de dent, ces sautoirs doivent être à double sommet et appuient entre les pointes de trois dents successives. Ces sautoirs doivent par conséquent être de grandes dimensions et sont donc encombrants. D'autre part, les caractéristiques mécaniques de la retenue exercée par les sautoirs sur les deux anneaux de quantième sont différentes selon que la dent manquante est en première, seconde ou troisième position vis-à-vis desdits sautoirs. Il faut donc trouver un compromis qui garantisse que, quelle que soit la position de la dent manquante, le sautoir assure un positionnement satisfaisant de l'anneau concerné. De tels sautoirs sont donc difficiles à mettre au point.The Brandi patent provides a date mechanism for a timepiece which advantageously makes it possible to give the date indication a large format, substantially double that of a conventional date mechanism. This date mechanism is animated by a finger drive that makes a ride every twenty-four hours and which drives the date rings by action on their teeth. However, there is no provision for a correction device that would allow quickly change the indication provided by the date mechanism. Furthermore, it poses a problem with regard to the positioning of the rings of calendar. Indeed, according to the Brandi patent, two arresting devices by Jumping effect acts respectively on the teeth of the upper ring and on the teeth of the lower ring. But, given the fact that a place in the dentition of each of these rings is devoid of teeth, these chokers must be double top and support between the tips of three successive teeth. These jumpers must therefore be large and therefore bulky. On the other hand, the mechanical characteristics of the restraint exerted by the jumpers on both Date rings are different depending on whether the missing tooth is in first, second or third position vis-à-vis said jumpers. So you have to find a compromise that ensures that, whatever the position of the missing tooth, the jumper ensures a satisfactory positioning of the ring concerned. Such jumpers are therefore difficult to develop.

La présente invention a pour but de remédier aux inconvénients susmentionnés ainsi qu'à d'autres encore en procurant un mécanisme de quantième permettant de donner à l'indication de quantième un grand format, ce mécanisme comprenant deux anneaux superposés, respectivement supérieur et inférieur, dont l'un porte quinze marquages successifs d'un cycle de 31 positions, tandis que l'autre porte les seize autres marquages, un dispositif de correction rapide permettant de modifier rapidement l'indication fournie par le mécanisme de quantième.The present invention aims to overcome the disadvantages mentioned above and others by providing a date mechanism to give the date indication a large format, this mechanism comprising two superposed rings, respectively upper and lower, whose one carries fifteen successive markings of a cycle of 31 positions, while the other carries the other sixteen markings, a rapid correction device allowing quickly change the indication provided by the date mechanism.

Un autre but de la présente invention est de fournir un mécanisme de quantième du genre susmentionné comprenant un dispositif d'arrêtage par effet de sautoir permettant de positionner adéquatement les deux anneaux.Another object of the present invention is to provide a mechanism for date of the above-mentioned kind comprising a device for stopping by jumper allowing to properly position the two rings.

A cet effet, la présente invention concerne un mécanisme de quantième pour pièce d'horlogerie telle qu'une montre-bracelet comprenant deux anneaux de quantième superposés, respectivement supérieur et inférieur, dont la surface se répartit en une pluralité de secteurs, l'anneau supérieur comprenant seize secteurs, dont quinze portent respectivement quinze marquages successifs d'un cycle de 31 positions, et dont le seizième est un secteur excédentaire présentant une fenêtre ouverte ou transparente, alors que l'anneau inférieur comprend dix-sept secteurs dont seize portent respectivement les seize autres marquages du cycle de 31 positions, et dont le dix-septième est un secteur excédentaire, chacun de ces anneaux coopérant avec des moyens d'entraínement de telle manière que les marquages de l'anneau inférieur apparaissent successivement dans une zone d'affichage au travers de la fenêtre, l'anneau supérieur restant immobile, puis que, l'anneau inférieur étant immobile, les marquages de l'anneau supérieur apparaissent successivement dans la zone d'affichage, l'anneau supérieur recouvrant les marquages de l'anneau inférieur, le mécanisme de quantième étant caractérisé en ce que chaque anneau comprend deux dentures périphériques faites chacune d'une succession de dents régulièrement espacées, ces dentures périphériques s'étendant selon deux rangs étagés, respectivement supérieur et inférieur, les dents des rangs supérieur et inférieur de l'anneau supérieur étant superposées, tandis que les dents des rangs supérieur et inférieur de l'anneau inférieur sont décalées, un endroit de chacune des dentures des anneaux supérieur et inférieur étant dépourvu de dent, et en ce que ledit mécanisme de quantième comprend en outre un dispositif de correction permettant de modifier l'indication fournie par le mécanisme de quantième, la position des moyens d'entraínement par rapport aux dentures supérieure et inférieure des anneaux respectivement supérieur et inférieur, et la position du mécanisme de correction par rapport aux dentures inférieure et supérieure des anneaux respectivement supérieur et inférieur étant telles que lorsque l'anneau supérieur présente son secteur excédentaire à l'endroit de ladite zone d'affichage, les moyens d'entraínement et le dispositif de correction se trouvent respectivement en regard de l'endroit dépourvu de dent de la denture du rang supérieur et de celle du rang inférieur de l'anneau supérieur, et lorsque l'anneau inférieur présente son secteur excédentaire à l'endroit de ladite zone d'affichage, les moyens d'entraínement et le dispositif de correction se trouvent respectivement en regard de l'endroit dépourvu de dent de la denture du rang inférieur et de celle du rang supérieur de l'anneau inférieur.For this purpose, the present invention relates to a date mechanism for timepiece such as a wristwatch comprising two rings of superposed date, respectively upper and lower, the surface of which divides into a plurality of sectors, the upper ring comprising sixteen sectors, fifteen of which respectively bear fifteen successive markings of a cycle of 31 positions, and the sixteenth of which is a surplus sector with a window open or transparent, while the lower ring comprises seventeen sectors of which sixteen respectively carry the other sixteen markings of the 31-position cycle, and of which the seventeenth is a surplus sector, each of these rings co-operating with means of training in such a way that the markings of the ring below appear successively in a display area through the window, the upper ring remaining stationary, then that, the lower ring being immobile, the markings of the upper ring appear successively in the display area, the upper ring covering the markings of the lower ring, the date mechanism being characterized in that each ring comprises two peripheral teeth each made of a succession of teeth regularly spaced, these peripheral teeth extending in two rows tiered, respectively upper and lower, the teeth of the upper and lower rows of the upper ring being superimposed, while the teeth of the upper and lower rows lower part of the lower ring are offset, a location of each of the teeth of the upper and lower rings being toothless, and in that said mechanism date record further comprises a correction device for modifying the indication provided by the date mechanism, the position of the means of training with respect to the upper and lower teeth of the rings respectively upper and lower, and the position of the correction mechanism by ratio to the upper and lower teeth of the rings respectively greater and lower being such that when the upper ring presents its sector excessively at the location of said display area, the drive means and the correction device are located respectively opposite the place devoid of tooth of the teeth of the upper row and that of the lower row of the ring higher, and when the lower ring presents its surplus sector to the place of said display area, the drive means and the correction device are located respectively opposite the toothless place of the teeth of the rank lower and that of the higher rank of the lower ring.

Grâce à ces caractéristiques, la présente invention procure un mécanisme de quantième comprenant deux anneaux de quantième superposés et un dispositif de correction rapide permettant de modifier rapidement l'information fournie par le mécanisme de quantième. Avantageusement, lorsque l'un des anneaux présente son secteur excédentaire dans la zone d'affichage, le dispositif de correction se trouve en regard de l'endroit dépourvu de dent de la denture de cet anneau. En conséquence, le dispositif de correction ne peut agir que sur l'autre anneau, de sorte que les risques de dérégler le mécanisme de quantième sont évités. Thanks to these features, the present invention provides a mechanism for calendar comprising two superposed calendar rings and a device for quick fix to quickly change the information provided by the date mechanism. Advantageously, when one of the rings presents its sector in the display area, the correction device is in look at the toothless place of the teeth of this ring. As a result, correction device can only act on the other ring, so that the risks to disrupt the date mechanism are avoided.

Selon une autre caractéristique de l'invention, le dispositif de correction comprend un pignon baladeur. Le pignon baladeur ne vient engrener avec les dentures des anneaux de quantième que lorsqu'il est mis en mouvement par l'utilisateur au moyen d'une tige de correction.According to another characteristic of the invention, the correction device includes a sliding pinion. The sliding gear does not mesh with the teeth of the date rings only when it is set in motion by the user by means of a correction rod.

Selon encore une autre caractéristique de l'invention, le mécanisme de quantième comprend des moyens d'arrêtage par effet de sautoir, l'anneau de quantième inférieur comprenant une denture supplémentaire située sous la denture inférieure de cet anneau et dont les dents sont disposées en coïncidence avec celles de ladite denture inférieure. Grâce à ces caractéristiques, le dispositif d'arrêtage par effet de sautoir est simple à fabriquer et permet un positionnement adéquat des deux anneaux de quantième. En effet, contrairement à l'art antérieur où, en raison du fait qu'un endroit de la denture de chacun des anneaux de quantième est dépourvu de dent, les sautoirs doivent être à double sommet et appuyer entre les pointes de trois dents successives, les sautoirs selon l'invention sont constamment logés entre deux dents successives de l'une ou l'autre des dentures d'un anneau donné, de sorte qu'ils restent en prise avec l'anneau de quantième concerné, même lors du passage de la dent manquante. Les sautoirs selon l'invention se terminent donc classiquement par deux plans inclinés qui appuient entre les pointes de deux dents immédiatement successives pour maintenir les anneaux de quantième dans la position voulue. Ces sautoirs sont donc de conception classique et exercent sur les anneaux de quantième une force de retenue d'intensité constante, quelle que soit la position desdits anneaux.According to yet another characteristic of the invention, the mechanism of date includes means for jumper locking, the ring of lower date including additional teeth located under the teeth of this ring and whose teeth are arranged in coincidence with those of said lower toothing. Thanks to these characteristics, the stop device by jumper effect is simple to manufacture and allows proper positioning of both date rings. Indeed, unlike the prior art where, because of the fact that a place in the toothing of each of the calendar rings is devoid of tooth, the jumpers must be double-pointed and press between the points of three successive teeth, the jumpers according to the invention are constantly housed between two successive teeth of one or other of the teeth of a given ring, so that they stay in touch with the date ring concerned, even when passing the missing tooth. The jumpers according to the invention therefore terminate classically by two inclined planes that support between the tips of two teeth immediately to keep the date rings in the desired position. These necklaces are therefore of classic design and exert on the rings of date a holding force of constant intensity, whatever the position of said rings.

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 de quantième selon l'invention, cet exemple étant donné à titre purement illustratif et non limitatif seulement, en liaison avec le dessin annexé sur lequel :

  • la figure 1 est une vue de dessus d'une boíte de montre comprenant un mécanisme de quantième conforme à l'invention ;
  • la figure 2 est une vue en perspective sous un premier angle de la boíte de montre de la figure 1;
  • la figure 3 est une vue en perspective sous un second angle de la boíte de montre de la figure 1;
  • la figure 4 est une vue en perspective de l'anneau de quantième supérieur;
  • la figure 5 est une vue en perspective de l'anneau de quantième inférieur;
  • la figure 6 est une vue analogue à celle des figures 4 et 5, les anneaux de quantième étant superposés;
  • la figure 7 est une vue éclatée du mécanisme de quantième, et
  • la figure 8 est une représentation schématique développée des dentures périphériques des anneaux de quantième inférieur et supérieur.
Other features and advantages of the present invention will emerge more clearly from the detailed description which follows of an embodiment of the date mechanism according to the invention, this example being given purely by way of illustration and not only in connection with the appended drawing in which:
  • Figure 1 is a top view of a watch case comprising a date mechanism according to the invention;
  • Figure 2 is a perspective view at a first angle of the watch case of Figure 1;
  • Figure 3 is a perspective view at a second angle of the watch case of Figure 1;
  • Figure 4 is a perspective view of the upper date ring;
  • Figure 5 is a perspective view of the lower date ring;
  • Figure 6 is a view similar to that of Figures 4 and 5, the date rings being superimposed;
  • FIG. 7 is an exploded view of the date mechanism, and
  • Figure 8 is a schematic representation of the peripheral teeth of the lower and upper date rings.

La présente invention procède de l'idée générale inventive qui consiste à procurer un mécanisme de quantième pour pièce d'horlogerie comprenant d'une part une roue d'entraínement faisant un tour toutes les vingt-quatre heures et entraínant les anneaux de quantième par action sur leurs dents, et d'autre part un dispositif de correction permettant de modifier rapidement les indications fournies par le mécanisme de quantième. Pour atteindre ce résultat, les anneaux de quantième comprennent chacun deux dentures périphériques intérieures dont l'une est destinée à coopérer avec la roue d'entraínement, tandis que l'autre coopère avec le dispositif de correction. Par ailleurs, un endroit de chacune de ces dentures est dépourvu de dent afin de définir une position de repos prolongé de l'anneau considéré. Plus précisément, lorsqu'un anneau présente sa position libre (guichet pour l'anneau supérieur et secteur exempt de marquage pour l'anneau inférieur) à l'endroit d'affichage de la montre, la roue d'entraínement et le dispositif de correction se trouvent en regard de l'endroit dépourvu de dent des dentures de l'anneau concerné. En conséquence, l'anneau concerné se trouve dans sa position de repos, et le dispositif de correction ne peut agir que sur l'autre anneau, de sorte que les risques de dérégler le mécanisme de quantième sont évités. Par ailleurs, la présente invention a également pour but de procurer un mécanisme de quantième du genre susdécrit dont le dispositif d'arrêtage par effet de sautoir comprend deux sautoirs peu encombrants, simples à fabriquer et garantissant un positionnement adéquat des anneaux de quantième. Ce résultat est atteint grâce au fait que, contrairement à l'art antérieur, où en raison du fait qu'un endroit de la denture de chacun des anneaux de quantième est dépourvu de dent, les sautoirs doivent coopérer avec trois dents successives de la denture de chacun des anneaux pour garantir le positionnement de ces sautoirs même lors du passage de la dent manquante, selon l'invention, chacun des deux anneaux de quantième comprend deux dentures étagées dont les dents sont superposées, l'endroit de la dent manquante pour les deux dentures n'étant pas le même, de sorte que les sautoirs sont constamment logés entre deux dents successives de l'une ou de l'autre des dentures d'un anneau donné et restent donc en prise avec l'anneau de quantième concerné, même lors du passage de la dent manquante.The present invention proceeds from the general inventive idea of to provide a date mechanism for a timepiece comprising on the one hand a training wheel making a turn every twenty-four hours and coaching the rings of date by action on their teeth, and secondly a device of correction allowing rapid modification of the indications provided by the date mechanism. To achieve this result, the date rings each comprise two inner peripheral teeth, one of which is for to cooperate with the drive wheel, while the other cooperates with the device correction. Moreover, a place in each of these teeth is devoid of tooth to define an extended rest position of the considered ring. More precisely, when a ring presents its free position (window for the ring upper and unmarked area for the lower ring) at the of the watch, the drive wheel and the correction device find next to the toothless place of the teeth of the ring concerned. Consequently, the ring in question is in its rest position, and the correction device can only act on the other ring, so that the risks to disrupt the date mechanism are avoided. Moreover, this Another object of the invention is to provide a calendar mechanism of the kind described above which the device for arresting by jumping effect comprises two little jumpers bulky, simple to manufacture and guaranteeing an adequate positioning of date rings. This result is achieved thanks to the fact that, unlike art previous, where due to the fact that a place of the toothing of each of the rings of date is toothless, the chokers must cooperate with three teeth successive teeth of each of the rings to ensure the positioning of these jumpers even when passing the missing tooth, according to the invention, each of the two date rings comprises two sets of teeth whose teeth are superimposed, the location of the missing tooth for the two teeth not being the same, so that the jumpers are constantly housed between two teeth successive teeth of one or the other of the teeth of a given ring and therefore remain in taken with the date ring concerned, even when passing the tooth missing.

La figure 1 est une vue de dessus d'un mouvement de montre comprenant un mécanisme de quantième conforme à l'invention. Désigné dans son ensemble par la référence numérique générale 1, le mouvement est monté dans une platine 2. Le mécanisme de quantième selon l'invention comprend principalement un anneau de quantième supérieur 4 superposé à un anneau de quantième inférieur 6. L'anneau de quantième supérieur 4 comporte seize secteurs, tandis que l'anneau de quantième inférieur 6 a dix-sept secteurs. Comme on peut le constater à l'examen de la figure 1 et mieux encore à l'examen des figures 4 et 5, l'anneau supérieur 4 porte sur quinze de ses secteurs les marquages "17" à "31", tandis que le dernier secteur est muni d'une fenêtre 8 ouverte ou transparente. L'anneau inférieur 6 comporte quant à lui sur seize de ses secteurs les marquages "1" à "16", tandis que le dernier secteur est libre de marquage.FIG. 1 is a view from above of a watch movement comprising a date mechanism according to the invention. Designated as a whole by the general numerical reference 1, the movement is mounted in a plate 2. The date mechanism according to the invention mainly comprises a ring of upper date 4 superimposed on a lower date ring 6. The ring of upper date 4 has sixteen sectors, while the date ring lower 6 to seventeen sectors. As can be seen from Figure 1 and better still, when examining FIGS. 4 and 5, the upper ring 4 bears on fifteen of its sectors markings "17" to "31", while the last sector is provided an open or transparent window 8. The lower ring 6 has meanwhile on Sixteen of its sectors markings "1" to "16", while the last sector is free marking.

La circonférence intérieure de l'anneau de quantième supérieur 4 comporte une denture formée d'une succession de dents régulièrement espacées. Pour les besoins de la description et afin de permettre une meilleure compréhension de l'invention, on supposera que cette denture unique est formée de deux dentures étagées supérieure et inférieure, dont les dents désignées respectivement par 10 et 12 sont superposées, un endroit 14 de la denture supérieure et un endroit 16 de la denture inférieure étant dépourvus de dent (voir figure 4).The inner circumference of the upper date ring 4 comprises a toothing formed of a succession of regularly spaced teeth. For the needs of the description and to allow a better understanding of the the invention, it will be assumed that this single toothing is formed of two teeth upper and lower stages, whose teeth are respectively 10 and 12 superimposed, a place 14 of the upper toothing and a place 16 of the lower toothing being toothless (see Figure 4).

De même, la circonférence intérieure de l'anneau de quantième inférieur 6 comporte deux dentures périphériques faites chacune d'une succession de dents régulièrement espacées, ces dentures périphériques s'étendant selon deux rangs étagés, respectivement supérieur et inférieur, les dents 18 du rang supérieur étant décalées par rapport aux dents 20 du rang inférieur (voir figure 5). Pour les mêmes raisons que ci-dessus, on supposera que la denture du rang inférieur est formée de deux dentures étagées inférieure et supplémentaire dont les dents, désignées respectivement par 20 et 22, sont superposées. Un endroit 24 de la denture supérieure et un endroit 26 de la denture inférieure sont dépourvus de dent.Likewise, the inner circumference of the lower date ring 6 has two peripheral teeth each made of a succession of teeth regularly spaced, these peripheral teeth extending in two ranks staged, respectively upper and lower, the teeth 18 of the upper row being staggered relative to the teeth of the lower row (see Figure 5). For the same reasons as above, it will be assumed that the toothing of the lower row is formed of two upper and lower staggered teeth whose teeth, designated respectively by 20 and 22, are superimposed. A place 24 of the toothing upper and a place 26 of the lower toothing are toothless.

En liaison avec les figures 1 à 3, on voit que le mécanisme de quantième selon l'invention comprend une roue d'entraínement de quantième 28 faisant un tour toutes les vingt-quatre heures et qui entraíne les anneaux de quantième 4 et 6 par action sur les dents 10 et 20 de la denture supérieure dudit anneau supérieur 4 et de la denture inférieure dudit anneau inférieur 6. La position de la roue d'entraínement 28 par rapport aux dentures respectivement supérieur et inférieure des anneaux supérieur 4 et inférieur 6 est telle que, lorsqu'un de ces anneaux présente sa position libre (fenêtre 8 pour l'anneau supérieur 4 et secteur exempt de marquage pour l'anneau inférieur 6) à l'endroit d'affichage 30 du mouvement de montre 1 (guichet du cadran supposé enlevé et qui occuperait la position où l'on voit le chiffre "16"), la roue d'entraínement 28 se trouve en face de la dent manquante, respectivement 14 ou 26, de la denture supérieure de l'anneau supérieur 4 ou de la denture inférieure de l'anneau inférieur 6. In connection with FIGS. 1 to 3, it can be seen that the date mechanism according to the invention comprises a date drive wheel 28 making a turn all the twenty-four hours and that drives the rings of date 4 and 6 by action on the teeth 10 and 20 of the upper toothing of said upper ring 4 and the toothing lower part of said lower ring 6. The position of the drive wheel 28 by ratio to the upper and lower teeth respectively of the upper rings 4 and lower 6 is such that when one of these rings presents its free position (window 8 for the upper ring 4 and unmarked sector for the ring lower 6) at the display location 30 of the watch movement 1 (dial window supposedly removed and that would occupy the position where we see the figure "16"), the wheel 28 is in front of the missing tooth, respectively 14 or 26, of the upper toothing of the upper ring 4 or the lower toothing of the lower ring 6.

Le mécanisme de quantième selon l'invention comprend également un dispositif de correction pour modifier rapidement l'indication fournie par ledit mécanisme de quantième. Selon une variante de réalisation préférée de l'invention, ce dispositif de correction comprend un pignon baladeur 32. Ce pignon baladeur 32 est actionné par l'utilisateur au moyen d'une tige de correction 33 et entraíne les anneaux de quantième 4 et 6 par action sur les dents 12 et 18 de la denture inférieure dudit anneau supérieur 4 et de la denture supérieure dudit anneau inférieur 6. La position du pignon baladeur 32 par rapport aux dentures respectivement inférieure et supérieure des anneau supérieur 4 et inférieur 6 est telle que, lorsqu'un de ces anneaux présente sa position libre à l'endroit d'affichage 30 du mouvement de montre, le pignon baladeur 32 se trouve en face de la dent manquante, respectivement 16 ou 24, de la denture inférieure de l'anneau supérieur 4 ou de la denture supérieure de l'anneau inférieur 6.The date mechanism according to the invention also comprises a correction device for rapidly changing the indication provided by said date mechanism. According to a preferred embodiment of the invention, this correction device comprises a sliding pinion 32. This sliding pinion 32 is actuated by the user by means of a correction rod 33 and causes the date rings 4 and 6 by action on the teeth 12 and 18 of the lower toothing said upper ring 4 and the upper toothing of said lower ring 6. The position of the sliding pinion 32 with respect to the teeth respectively lower and upper ring 4 and lower 6 is such that when one of these rings presents its free position at the display location 30 of the movement of shows, the sliding pinion 32 is in front of the missing tooth, respectively 16 or 24, of the lower toothing of the upper ring 4 or the upper teeth of the lower ring 6.

Un dispositif d'arrêtage par effet de sautoir 34 comprend deux sautoirs 36 et 38 qui coopèrent respectivement avec les dents 10, 12 des dentures supérieure et inférieure de l'anneau supérieur 4 et avec les dents 20, 22 des dentures inférieure et supplémentaire de l'anneau inférieur 6. Contrairement à l'art antérieur où, en raison du fait qu'un endroit de la denture de chacun des anneaux de quantième est dépourvu de dent, les sautoirs doivent coopérer avec trois dents successives de chacun des anneaux pour garantir le positionnement de ces anneaux même lors du passage de la dent manquante, les sautoirs 36 et 38 selon l'invention sont constamment logés entre deux dents immédiatement successives de l'une ou l'autre des dentures d'un anneau donné, de sorte qu'ils restent en prise avec l'anneau de quantième concerné même lors du passage de la dent manquante.A jumper device 34 comprises two jumpers 36 and 38 which cooperate respectively with the teeth 10, 12 of the upper teeth and lower part of the upper ring 4 and with the teeth 20, 22 of the lower teeth and 6. In contrast to the prior art where, due to because a place in the toothing of each of the date rings is missing teeth, the chokers must cooperate with three successive teeth of each of the rings to ensure the positioning of these rings even when passing the tooth missing, the jumpers 36 and 38 according to the invention are constantly housed between two teeth immediately successive of one or other of the teeth of a ring given, so that they stay in touch with the same date ring concerned when passing the missing tooth.

A leur circonférence extérieure, les anneaux de quantième 4 et 6 présentent chacun une butée, respectivement 40 et 42. Les figures 4 et 5 montrent le détail de cet agencement. La butée 40 s'étend perpendiculairement au plan de l'anneau de quantième supérieur 4, tandis que la butée 42 s'étend radialement hors du périmètre extérieur de l'anneau de quantième inférieur 6.At their outer circumference, the date rings 4 and 6 present each a stop, respectively 40 and 42. Figures 4 and 5 show the detail of this arrangement. The stop 40 extends perpendicular to the plane of the ring of upper date 4, while the stop 42 extends radially out of the perimeter outside the lower date ring 6.

Dans la situation représentée aux figures 1 à 3, l'anneau de quantième supérieur 4 présente sa fenêtre 8 à l'endroit d'affichage 30 et simultanément ses dents manquantes 14 et 16 vis-à-vis respectivement de la roue d'entraínement 28 et du pignon baladeur 32. On comprend que les dents manquantes 14 et 16 définissent une position de repos de l'anneau de quantième supérieur 4, position dans laquelle ni la roue d'entraínement 28, ni le pignon baladeur 32 ne peuvent agir sur ledit anneau de quantième supérieur 4. La roue d'entraínement 28 entraíne donc uniquement l'anneau de quantième inférieur 6 qui, pour parvenir à la position représentée, a été mené successivement dans les situations où il exposait les marquages "11", "12", ..., "15" et finalement "16". Au moment où apparaít le marquage "16", la butée 42 arrive en appui contre la butée 40. A ce moment, lors de l'avance qui sera impartie à l'anneau inférieur 6 par la roue d'entraínement 28, l'anneau supérieur 4 sera également entraíné, de sorte que la fenêtre 8 disparaítra de l'endroit d'affichage 30 pour faire place au marquage "17" de l'anneau supérieur 4. A ce moment, ce sera l'anneau inférieur 6 qui présentera ses dents manquantes en face, respectivement, de la roue d'entraínement 28 et du pignon baladeur 32. De même que pour l'anneau supérieur 4, les dents manquantes 24 et 26 de l'anneau inférieur 6 définissent une position de repos de cet anneau 6, position dans laquelle ni la roue d'entraínement 28, ni le pignon baladeur 32 ne peuvent agir sur ledit anneau de quantième inférieur 6. Ainsi, à chaque tour de la roue d'entraínement 28, seul l'anneau supérieur 4 avancera d'un pas, faisant successivement apparaítre les marquages "17", "18", ..., "30" et "31". Lors de l'affichage du marquage "31 ", la situation entre les deux butées 40 et 42 sera l'inverse de celle décrite ci-dessus, c'est-à-dire que la butée 40 de l'anneau de quantième 4, venant buter contre la butée 42 de l'anneau de quantième inférieur 6, provoquera simultanément, lors de l'avance de l'anneau supérieur 4, l'avance de l'anneau inférieur 6, ce qui provoquera l'apparition du marquage "1" sous la fenêtre 8, à l'endroit d'affichage 30. Pendant tout le temps où l'anneau supérieur 4 s'est mû alors que l'anneau inférieur 6 était en repos, c'est le secteur exempt de marquage de celui-ci qui se trouvait à l'endroit d'affichage 20, cela étant toutefois sans effet puisque, dans ce cas, la fenêtre 8 n'a jamais été à l'endroit d'affichage 30 et n'a donc jamais laissé voir l'anneau inférieur 6. Ensuite, les seize marquages de l'anneau inférieur 6 défilent successivement, jusqu'au retour à la situation représentée aux figures 1 à 3. Le cycle se répète alors.In the situation shown in FIGS. 1 to 3, the date ring upper 4 has its window 8 at the display location 30 and simultaneously its missing teeth 14 and 16 vis-a-vis respectively of the drive wheel 28 and of the sliding pinion 32. It will be understood that the missing teeth 14 and 16 define a rest position of the upper date ring 4, a position in which neither the drive wheel 28 nor the sliding pinion 32 can act on said ring date of upper date 4. The drive wheel 28 therefore drives only the lower date ring 6 which, to achieve the position shown, has been conducted successively in situations where he exhibited the markings "11", "12", ..., "15" and finally "16". At the moment when the marking "16" appears, the stop 42 arrives against the stop 40. At this moment, during the advance which will be the lower ring 6 by the drive wheel 28, the upper ring 4 will be also driven, so that the window 8 will disappear from the display location 30 to make way for the marking "17" of the upper ring 4. At that moment, it will be the lower ring 6 which will present its missing teeth in front, respectively, of the drive wheel 28 and the sliding pinion 32. As for the ring upper 4, the missing teeth 24 and 26 of the lower ring 6 define a rest position of this ring 6, position in which neither the drive wheel 28, neither the sliding pinion 32 can act on said lower date ring 6. Thus, at each turn of the drive wheel 28, only the upper ring 4 will advance one step, successively appearing the markings "17", "18", ..., "30" and "31". When displaying the marking "31", the situation between the two stops 40 and 42 will be the opposite of that described above, that is to say that the stop 40 of the ring of date 4, abutting against the stop 42 of the lower date ring 6, at the same time, when the upper ring 4 is advanced, the advance of the lower ring 6, which will cause the appearance of the marking "1" under the window 8, at the display location 30. Throughout the time the upper ring 4 has moved while the lower ring 6 was at rest, it is the sector free of marking of the latter which was in the display place 20, however, this being without effect since, in this case, the window 8 has never been at the display location 30 and therefore has never let see the lower ring 6. Then the sixteen markings of the ring lower 6 pass successively, until the return to the situation represented in Figures 1 to 3. The cycle is repeated then.

Il va de soi que le déplacement relatif des deux anneaux de quantième supérieur 4 et inférieur 6 serait le même s'ils étaient entraínés non pas par la roue d'entraínement 28, mais par le pignon baladeur 32 actionné par l'utilisateur via la tige de correction 33. Les deux anneaux 4 et 6 tourneraient simplement plus vite, permettant à l'utilisateur de corriger rapidement l'indication fournie par le mécanisme de quantième. On rappellera que la position du pignon baladeur 32 est telle que, lorsque l'anneau supérieur 4 présente sa position libre à l'endroit d'affichage 30, le pignon baladeur 32 se trouve en face de la dent manquante 16 de la denture inférieure de l'anneau supérieur 4, tandis que, lorsque l'anneau inférieur 6 présente sa position libre à l'endroit d'affichage 30, le pignon baladeur 32 se trouve en face de la dent manquante 24 de la denture supérieure de l'anneau inférieur 6. On rappellera également que le pignon baladeur 32 ne vient engrèner avec les dentures des anneaux de quantième que lorsqu'il est mis en mouvement par l'utilisateur au moyen de la tige de correction 33. En période de fonctionnement normal du mécanisme de quantième, le pignon baladeur 32 occupe une position à l'écart des anneaux de quantième 4 et 6. Enfin, on notera d'ores et déjà que la roue d'entraínement 28 entraíne les anneaux de quantième 4 et 6 par le biais d'un doigt présentant une certaine élasticité, de sorte que lorsque l'un des anneaux 4 ou 6 est entraíné par le pignon baladeur 32, le doigt s'efface devant la dent qui est en train de le dépasser et tombe dans le creux défini par cette dent et la dent suivante.It goes without saying that the relative displacement of the two calendar rings upper 4 and lower 6 would be the same if they were driven not by the wheel 28, but by the sliding pinion 32 actuated by the user via the rod 33. The two rings 4 and 6 would simply turn faster, allowing the user to quickly correct the indication provided by the mechanism of date. It will be recalled that the position of the sliding pinion 32 is such that, when the upper ring 4 has its free position at the display location 30, the sliding pinion 32 is in front of the missing tooth 16 of the toothing lower part of the upper ring 4, whereas when the lower ring 6 presents its free position at the display location 30, the sliding pinion 32 is in front of the missing tooth 24 of the upper toothing of the lower ring 6. It will be recalled also that the sliding pinion 32 does not come into mesh with the teeth of the date rings that when put into motion by the user by means of of the correction rod 33. During normal operation of the mechanism of date, the sliding pinion 32 occupies a position away from the rings of date 4 and 6. Finally, it should be noted already that the drive wheel 28 causes the date rings 4 and 6 by means of a finger presenting a certain elasticity, so that when one of the rings 4 or 6 is driven by the sliding pinion 32, the finger is erased in front of the tooth that is passing it and falls into the hollow defined by this tooth and the next tooth.

La figure 7 est une vue éclatée du mouvement d'horlogerie 1 muni du mécanisme de quantième selon l'invention. Ce mouvement 1 comprend la platine 2 qui supporte et guide en rotation les deux anneaux de quantième inférieur 6 et supérieur 4. Au centre de la platine 2 se dresse classiquement l'axe de la roue des heures 44 sur lequel est engagée la roue des heures 46. Un pont 48 porte le dispositif d'arrêtage 34 muni de ses deux sautoirs 36 et 38 qui agissent respectivement sur l'anneau de quantième supérieur 4 et sur l'anneau de quantième inférieur 6. La roue d'entraínement 28 comprend une roue 50 entraínée, via un mobile démultiplicateur non représenté, par la roue des heures 46 de façon à effectuer un tour complet en vingt-quatre heures. Deux doigts 52 et 54 sont fixés, par exemple par soudage, sur la roue 50. Ces deux doigts 52 et 54 entraínent les anneaux de quantième, respectivement supérieur 4 et inférieur 6, par action sur la denture supérieure dudit anneau supérieur 4 et sur la denture inférieure dudit anneau inférieur 6. Si la dent manquante 14 de la denture supérieure de l'anneau de quantième supérieur 4 se trouve vis-à-vis de la roue d'entraínement 28, celle-ci sera sans effet sur ledit anneau supérieur 4 et entraínera par son doigt 54 l'anneau de quantième inférieur 6 d'un pas chaque jour. Inversement, si la dent manquante 26 de la denture inférieure de l'anneau de quantième inférieur 6 se trouve en regard de la roue d'entraínement 28, le doigt 54 ne pourra venir en prise avec les dents 20 dudit anneau inférieur 6 et seul l'anneau supérieur 4 avancera d'un pas chaque jour.FIG. 7 is an exploded view of the watch movement 1 equipped with the date mechanism according to the invention. This movement 1 includes platinum 2 which supports and rotates the two lower date rings 6 and 4. In the center of the plate 2 is the axis of the wheel 44 hours on which is engaged the hour wheel 46. A bridge 48 carries the device stop 34 with its two jumpers 36 and 38 acting respectively on the upper date ring 4 and the lower date ring 6. The wheel 28 includes a wheel 50 driven, via a mobile gear reducer not shown, by the hour wheel 46 so as to perform a complete turn in twenty-four hours. Two fingers 52 and 54 are fixed, for example by welding, on the wheel 50. These two fingers 52 and 54 drive the date rings, respectively upper 4 and lower 6, by action on the upper toothing of said upper ring 4 and on the lower toothing of said lower ring 6. If the tooth missing 14 of the upper toothing of the upper date ring 4 is found vis-à-vis the drive wheel 28, it will have no effect on said ring upper 4 and will drive with his finger 54 the lower date ring 6 a step every day. Conversely, if the missing tooth 26 of the lower toothing of the lower date ring 6 is opposite the drive wheel 28, the finger 54 can not come into engagement with the teeth 20 of said lower ring 6 and alone the upper ring 4 will advance one step each day.

La roue d'entraínement 28 est montée libre sur un axe 56 du pont 48. De même le pignon baladeur 32 est monté sur le pont 48 par l'intermédiaire d'un axe 58. Ledit pignon baladeur 32 est relié à la tige de correction 33 par une chaíne cinématique comprenant des roues de renvoi 60 et 62 et un pignon 64. Enfin, le mécanisme de quantième selon l'invention est maintenu axialement sur la platine 2 au moyen d'une plaque de maintient 66 fixée à l'aide de vis 68.The drive wheel 28 is freely mounted on an axis 56 of the bridge 48. even the sliding pinion 32 is mounted on the bridge 48 via an axis 58. Said sliding pinion 32 is connected to the correction rod 33 by a chain kinematic comprising deflection wheels 60 and 62 and a pinion 64. Finally, the date mechanism according to the invention is held axially on the plate 2 to means of a holding plate 66 fixed with screws 68.

La figure 8 est une représentation développée des dentures des anneaux de quantième supérieur 4 et inférieur 6. Comme on peut le constater à l'examen de cette figure, l'anneau de quantième supérieur 4 comporte seize dents repérées par les chiffres 1, 2, ..., 15 et 16, tandis que l'anneau de quantième inférieur 6 comprend dix-sept dents repérées par les chiffres 1, 2, ..., 16 et 17. L'anneau supérieur 4 comporte donc 16 divisions, tandis que l'anneau inférieur comporte 17 divisions.FIG. 8 is a developed representation of the teeth of the rings of upper 4 and lower 6. As can be seen from the examination of this figure, the upper date ring 4 has sixteen teeth identified by the numbers 1, 2, ..., 15 and 16, while the lower date ring 6 comprises seventeen teeth identified by the numbers 1, 2, ..., 16 and 17. The upper ring 4 comprises therefore 16 divisions, while the lower ring has 17 divisions.

L'anneau de quantième supérieur 4 comporte deux dentures étagées dont les dents, désignées respectivement par 10 et 12, sont superposées, un endroit 14 de la denture supérieure et un endroit 16 de la denture inférieure, matérialisés chacun par un cercle en trait plein, étant dépourvus de dent.The upper date ring 4 has two serrated teeth whose teeth, designated respectively by 10 and 12, are superimposed, a place 14 of the upper toothing and a location 16 of the lower toothing, each materialized by a circle in solid line, being toothless.

L'anneau de quantième inférieur 6 comporte également deux dentures étagées dont les dents, désignées respectivement par 18 et 20, sont décalées, un endroit 24 de la denture supérieure et un endroit 26 de la denture inférieure, matérialisés chacun par un cercle en trait plein, étant dépourvus de dent. L'anneau de quantième inférieur 6 comporte en outre une denture supplémentaire dont les dents 22 coïncident avec les dents 20 de la denture inférieure.The lower date ring 6 also has two teeth staggered teeth, designated respectively by 18 and 20, are staggered place 24 of the upper toothing and a place 26 of the lower toothing, each materialized by a circle in solid line, being toothless. The ring of lower date 6 further comprises additional teeth whose teeth 22 coincide with the teeth 20 of the lower toothing.

La position de la roue d'entraínement 28 et celle du pignon baladeur 32 vis-à-vis des dentures des anneaux de quantième supérieur 4 et inférieur 6 sont repérées par les segments de droite A-A et B-B respectivement. Enfin, les deux sautoirs 36 et 38 sont matérialisés par deux rectangles qui portent les mêmes références numériques. Comme on peut le constater à l'examen du dessin, la hauteur des deux sautoirs 36 et 38 est égale à l'épaisseur des dentures supérieure et inférieure, respectivement inférieure et supplémentaire des anneaux de quantième supérieur 4 et inférieur 6 avec lesquelles lesdits sautoirs coopèrent.The position of the drive wheel 28 and that of the sliding gear 32 vis-à-vis the teeth of the upper date ring 4 and lower 6 are identified by line segments A-A and B-B respectively. Finally, the two jumpers 36 and 38 are represented by two rectangles with the same references digital. As can be seen from the drawing, the height of the two jumpers 36 and 38 is equal to the thickness of the upper and lower teeth, respectively lower and additional upper date rings 4 and lower 6 with which said jumpers cooperate.

Dans la situation représentée à la figure 8, l'anneau de quantième supérieur 4 présente ses deux dents manquantes 14 et 16 vis-à-vis respectivement de la roue d'entraínement 28 et du pignon baladeur 32. Cette position correspond à la situation dans laquelle l'anneau supérieur 4 présente sa fenêtre 8 à l'endroit d'affichage 30 du mouvement et révèle le chiffre "16" porté par l'anneau inférieur 6. Au moment où apparaít le marquage "16", la butée 42 de l'anneau inférieur 6 arrive en butée contre la butée 40 de l'anneau supérieur 4. Ainsi; lors de l'avance qui sera impartie à l'anneau inférieur 6 par la roue d'entraínement 28, l'anneau supérieur 4 sera également entraíné. Ce sera alors l'anneau inférieur 6 qui présentera ses dents manquantes 24 et 26 en regard, respectivement, de la roue d'entraínement 28 et du pignon baladeur 32, tandis que les dents manquantes 14 et 16 de l'anneau supérieur 4 auront avancé d'un pas.In the situation shown in FIG. 8, the upper date ring 4 presents its two missing teeth 14 and 16 vis-à-vis respectively of the wheel 28 and the sliding pinion 32. This position corresponds to the situation in which the upper ring 4 has its window 8 at the display location 30 of the movement and reveals the figure "16" carried by the lower ring 6. At the moment appears the marking "16", the stop 42 of the lower ring 6 abuts against the stop 40 of the upper ring 4. Thus; during the advance that will be outsourced to the lower ring 6 by the drive wheel 28, the upper ring 4 will be also driven. It will then be the lower ring 6 which will present its teeth missing 24 and 26 next to, respectively, the drive wheel 28 and the sliding gear 32, while the missing teeth 14 and 16 of the upper ring 4 will have taken a step forward.

Comme déjà mentionné ci-dessus, la hauteur des deux sautoirs 36 et 38 est sensiblement égale à l'épaisseur des dents 10, 12 et 20, 22 de sorte que, même lors du passage des dents manquantes, lesdits sautoirs restent toujours engagés entre deux dents immédiatement consécutives des dentures des disques supérieur et inférieur, garantissant un positionnement adéquat de ces disques.As already mentioned above, the height of the two jumpers 36 and 38 is substantially equal to the thickness of the teeth 10, 12 and 20, 22 so that even when missing teeth, said jumpers are always engaged between two immediately consecutive teeth of the teeth of the upper disks and lower, ensuring proper positioning of these discs.

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 la présente invention. En particulier, l'anneau de quantième supérieur pourrait comporter dix-sept secteurs, tandis que l'anneau de quantième inférieur n'en compterait que seize.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 contemplated by those skilled in the art without departing from the scope of the present invention. In In particular, the upper date ring could have seventeen sectors, while the lower date ring has only sixteen.

Claims (5)

Mécanisme de quantième pour pièce d'horlogerie telle qu'une montre-bracelet comprenant deux anneaux de quantième superposés, respectivement supérieur (4) et inférieur (6), dont la surface se répartit en une pluralité de secteurs, l'anneau supérieur (4) comprenant seize secteurs, dont quinze portent respectivement quinze marquages successifs d'un cycle de 31 positions, et dont le seizième est un secteur excédentaire présentant une fenêtre (8) ouverte ou transparente, alors que l'anneau inférieur (6) comprend dix-sept secteurs dont seize portent respectivement les seize autres marquages du cycle de 31 positions, et dont le dix-septième est un secteur excédentaire, chacun de ces anneaux (4, 6) coopérant avec des moyens d'entraínement de telle manière que les marquages de l'anneau inférieur apparaissent successivement dans une zone d'affichage (30) au travers de la fenêtre (8), l'anneau supérieur (4) restant immobile, puis que, l'anneau inférieur (6) étant immobile, les marquages de l'anneau supérieur (4) apparaissent successivement dans la zone d'affichage (30), l'anneau supérieur (4) recouvrant les marquages de l'anneau inférieur (6), le mécanisme de quantième étant caractérisé en ce que chaque anneau (4, 6) comprend deux dentures périphériques faites chacune d'une succession de dents (10, 12; 18, 20) régulièrement espacées, ces dentures périphériques s'étendant selon deux rangs étagés, respectivement supérieur et inférieur, les dents (10, 12) des rangs supérieur et inférieur de l'anneau supérieur (4) étant superposées, tandis que les dents (18, 20) des rangs supérieur et inférieur de l'anneau inférieur (6) sont décalées, un endroit (14, 16; 24, 26) de chacune des dentures des anneaux supérieur (4) et inférieur (6) étant dépourvu de dent, et en ce que ledit mécanisme de quantième comprend en outre un dispositif de correction permettant de modifier l'indication fournie par le mécanisme de quantième, la position des moyens d'entraínement par rapport aux dentures supérieure et inférieure des anneaux respectivement supérieur (4) et inférieur (6), et la position du mécanisme de correction par rapport aux dentures inférieure et supérieure des anneaux respectivement supérieur (6) et inférieur (4) étant telles que lorsque l'anneau supérieur (6) présente son secteur excédentaire à l'endroit de ladite zone d'affichage (30), les moyens d'entraínement et le dispositif de correction se trouvent respectivement en regard de l'endroit dépourvu de dent (14, 16) de la denture du rang supérieur et de celle du rang inférieur de l'anneau supérieur, et lorsque l'anneau inférieur (6) présente son secteur excédentaire à l'endroit de ladite zone d'affichage (30), les moyens d'entraínement et le dispositif de correction rapide se trouvent respectivement en regard de l'endroit dépourvu de dent (24, 26) de la denture du rang inférieur et de celle du rang supérieur de l'anneau inférieur (6).Calendar mechanism for a timepiece such as a wristwatch comprising two superimposed, upper (4) and lower (6) superimposed date rings, the surface of which is divided into a plurality of sectors, the upper ring (4) ) comprising sixteen sectors, fifteen of which respectively carry fifteen successive markings of a cycle of 31 positions, and the sixteenth of which is a surplus sector having an open or transparent window (8), whereas the lower ring (6) comprises ten seven sectors of which sixteen respectively carry the other sixteen markings of the cycle of 31 positions, and the seventeenth of which is a surplus sector, each of these rings (4, 6) cooperating with means of training in such a way that the markings of the lower ring appear successively in a display area (30) through the window (8), the upper ring (4) remaining stationary, and that, the lower ring (6) being stationary , the markings of the upper ring (4) appear successively in the display area (30), the upper ring (4) covering the markings of the lower ring (6), the date mechanism being characterized in that that each ring (4, 6) comprises two peripheral toothings each made of a succession of teeth (10, 12; 18, 20) regularly spaced, these peripheral teeth extending in two tiers, respectively upper and lower rows, the teeth (10, 12) of the upper and lower rows of the upper ring (4) being superimposed, while the teeth (18, 20) of the upper and lower rows of the lower ring (6) are offset, a location (14, 16; 24, 26) of each of the teeth of the upper (4) and lower (6) rings being devoid of tooth, and in that said date mechanism further comprises a correction device for modifying the indication provided by the date mechanism, the position of the drive means with respect to the upper and lower teeth of the respectively upper ring (4). ) and lower (6), and the position of the correction mechanism with respect to the lower and upper teeth of the respectively upper (6) and lower (4) rings being such that when the upper ring (6) ) presents its surplus sector at the location of said display area (30), the drive means and the correction device are respectively facing the tooth-free place (14, 16) of the tooth of the row and that of the lower row of the upper ring, and when the lower ring (6) has its surplus sector at the location of said display area (30), the drive means and the device of rapid correction are respectively facing the toothless place (24, 26) of the toothing of the lower row and that of the upper row of the lower ring (6). Mécanisme de quantième selon la revendication 1, caractérisé en ce que le dispositif de correction comprend un pignon baladeur (32) qui ne vient engrener avec les dentures inférieure et supérieure des anneaux de quantième respectivement supérieur (4) et inférieur (6) que lorsqu'il est mis en mouvement au moyen d'une tige de correction (33).Date mechanism according to claim 1, characterized in that the correction device comprises a sliding pinion (32) which meshes with the lower and upper teeth of the respectively upper (4) and lower (6) calendar rings than when it is set in motion by means of a correction rod (33). Mécanisme de quantième selon l'une quelconque des revendications 1 ou 2, caractérisé en ce qu'il comprend des moyens d'arrêtage par effet de sautoir (34) qui coopèrent avec les dentures supérieure et inférieure de l'anneau supérieur (4), et avec la denture inférieure de l'anneau inférieur (4) ainsi qu'avec une denture supplémentaire située sous la denture inférieure dudit anneau inférieur (4) et dont les dents (22) sont disposées en coïncidence avec celles (20) de ladite denture inférieure.Date mechanism according to any one of claims 1 or 2, characterized in that it comprises jumper locking means (34) which cooperate with the upper and lower teeth of the upper ring (4), and with the lower toothing of the lower ring (4) and with additional toothing located under the lower toothing of said lower ring (4) and whose teeth (22) are arranged in coincidence with those (20) of said toothing lower. Mécanisme de quantième selon la revendication 3, caractérisé en ce que les moyens d'arrêtage (34) comprennent deux sautoirs (36, 38) dont la hauteur est sensiblement égale à l'épaisseur des dents (10, 12) et (20, 22).Date mechanism according to claim 3, characterized in that the stop means (34) comprise two jumpers (36, 38) whose height is substantially equal to the thickness of the teeth (10, 12) and (20, 22 ). Mécanisme de quantième selon l'une quelconque des revendications 1 à 4, caractérisé en ce que les moyens d'entraínement comprennent une roue (28) qui fait un tour en 24 heures et qui est munie de deux doigts (52, 54) qui entraínent respectivement les anneaux de quantième supérieur (4) et inférieur (6) par action sur leurs dents (10) et (20) respectives.Date mechanism according to any one of claims 1 to 4, characterized in that the drive means comprise a wheel (28) which turns in 24 hours and which is provided with two fingers (52, 54) which drive respectively the upper (4) and lower (6) calendar rings by action on their respective teeth (10) and (20).
EP03027146A 2003-11-26 2003-11-26 Calendar mechanism for a watch comprising two superposed date annuli Expired - Lifetime EP1536299B1 (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
EP03027146A EP1536299B1 (en) 2003-11-26 2003-11-26 Calendar mechanism for a watch comprising two superposed date annuli
DE60332637T DE60332637D1 (en) 2003-11-26 2003-11-26 Calendar mechanism for a watch with two superimposed rings
SG200407205A SG112097A1 (en) 2003-11-26 2004-11-12 Timepiece with a date mechanism comprising two superposed date rings
TW093135279A TW200519553A (en) 2003-11-26 2004-11-17 Timepiece with a date mechanism comprising two superposed date rings
US10/992,695 US6925032B2 (en) 2003-11-26 2004-11-22 Timepiece with a date mechanism comprising two superposed date rings
KR1020040096652A KR101067067B1 (en) 2003-11-26 2004-11-24 Clock with date device consisting of two nested date rings
CN2004100917337A CN1621975B (en) 2003-11-26 2004-11-25 Timepiece with a date mechanism comprising two superposed date rings
JP2004341913A JP4523835B2 (en) 2003-11-26 2004-11-26 Watch having a date mechanism with two date rings superimposed
HK05109890.7A HK1077883B (en) 2003-11-26 2005-11-07 Timepiece with a date mechanism comprising two superposed date rings

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP03027146A EP1536299B1 (en) 2003-11-26 2003-11-26 Calendar mechanism for a watch comprising two superposed date annuli

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EP1536299A1 true EP1536299A1 (en) 2005-06-01
EP1536299B1 EP1536299B1 (en) 2010-05-19

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EP03027146A Expired - Lifetime EP1536299B1 (en) 2003-11-26 2003-11-26 Calendar mechanism for a watch comprising two superposed date annuli

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US (1) US6925032B2 (en)
EP (1) EP1536299B1 (en)
JP (1) JP4523835B2 (en)
KR (1) KR101067067B1 (en)
CN (1) CN1621975B (en)
DE (1) DE60332637D1 (en)
SG (1) SG112097A1 (en)
TW (1) TW200519553A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2141556A1 (en) 2008-07-03 2010-01-06 ETA SA Manufacture Horlogère Suisse Calendar mechanism for a timepiece
US7835229B2 (en) 2008-07-03 2010-11-16 Eta Sa Manufacture Horlogere Suisse Date mechanism for a timepiece
EP2434354A1 (en) * 2010-09-27 2012-03-28 ETA SA Manufacture Horlogère Suisse Large display with aperture for a clock piece
US8730767B2 (en) 2010-09-27 2014-05-20 Eta Sa Manufacture Horlogère Suisse Large aperture display for a timepiece
US12055897B2 (en) 2018-09-26 2024-08-06 Patek Philippe Sa Geneve Display mechanism with a single aperture

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DE60332637D1 (en) 2010-07-01
EP1536299B1 (en) 2010-05-19
JP4523835B2 (en) 2010-08-11
KR20050050554A (en) 2005-05-31
CN1621975A (en) 2005-06-01
CN1621975B (en) 2012-11-07
TW200519553A (en) 2005-06-16
US6925032B2 (en) 2005-08-02
SG112097A1 (en) 2005-06-29
US20050111303A1 (en) 2005-05-26
HK1077883A1 (en) 2006-02-24
JP2005156562A (en) 2005-06-16

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