EP1536299B1 - 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
EP1536299B1
EP1536299B1 EP03027146A EP03027146A EP1536299B1 EP 1536299 B1 EP1536299 B1 EP 1536299B1 EP 03027146 A EP03027146 A EP 03027146A EP 03027146 A EP03027146 A EP 03027146A EP 1536299 B1 EP1536299 B1 EP 1536299B1
Authority
EP
European Patent Office
Prior art keywords
ring
date
teeth
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.)
Expired - Lifetime
Application number
EP03027146A
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German (de)
French (fr)
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EP1536299A1 (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 DE60332637T priority Critical patent/DE60332637D1/en
Priority to EP03027146A priority patent/EP1536299B1/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/HK1077883A1/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 calendar 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 mainly comprising a date ring greater than sixteen sectors, superimposed on a lower ring having seventeen sectors.
  • the upper ring covers fifteen of its sectors markings "17" to "31” while the last sector is equipped with 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 inner circumference of the two rings has teeth, a location for the upper ring and a location for the lower ring being toothless.
  • a date training finger typically making a turn every twenty-four hours, drives the calendar rings in a conventional manner, by action on their teeth.
  • the position of the driving finger relative to the teeth of the rings is such that when a ring has its free position (aperture for the upper ring and unmarked sector for the lower ring) at the display location of the shows, the drive finger is in front of the tooth-free position of the concerned ring.
  • the Brandi patent provides a date mechanism for a timepiece which advantageously makes it possible to give the date indication a large format, substantially twice that of a conventional date mechanism.
  • This date mechanism is animated by a training finger which makes a turn every twenty-four hours and which drives the date rings by action on their teeth.
  • a correction device that would quickly change the indication provided by the date mechanism.
  • two jumper locking devices act respectively on the teeth of the upper ring and on the teeth of the lower ring. But, considering that a place of the teeth of each of these rings is toothless, these jumpers must be double top and support between the tips of three successive teeth.
  • jumpers must therefore be large and are therefore bulky.
  • the mechanical characteristics of the retention exerted by the jumpers on the two date rings are different depending on whether the missing tooth is in first, second or third position vis-à-vis said jumpers. We must therefore 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.
  • the object of the present invention is to overcome the aforementioned drawbacks as well as others by providing a date mechanism making it possible to give the date indication a large format, this mechanism comprising two superposed 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, a rapid correction device for quickly changing the indication provided by the date mechanism.
  • Another object of the present invention is to provide a date mechanism of the aforementioned kind comprising a jumper device for securing the two rings.
  • the present invention relates to a date mechanism for a timepiece such as a wristwatch comprising two superposed top and bottom date rings, the surface of which is divided into a plurality of sectors, the ring 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 an open or transparent window, while the lower ring comprises seventeen sectors, sixteen of which are respectively the other sixteen markings of the 31-position cycle, and the seventeenth of which is one excess sector, each of these rings cooperating with drive means in such a way that the markings of the lower ring appear successively in a display area through the window, the upper ring remaining stationary, then, lower ring being stationary, 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 of a succession of regularly spaced teeth, these peripheral teeth extending according to two stepped rows, respectively upper and lower, the teeth of the
  • the present invention provides a date mechanism comprising two superposed calendar rings and a fast correction device for quickly changing the information provided by the date mechanism.
  • the correction device is located opposite the toothless place of the toothing of this ring. As a result, the correction device can only act on the other ring, so that the risks of disordering the date mechanism are avoided.
  • the correction device comprises a sliding pinion.
  • the sliding pinion meshes with the teeth of the calendar rings only when it is moved by the user by means of a correction rod.
  • the date mechanism comprises jumper locking means, the lower date ring comprising an additional toothing located under the lower teeth of this ring and whose teeth are arranged in coincide with those of said lower toothing. Thanks to these characteristics, the jumper device is easy to manufacture and allows the two date rings to be properly positioned. Indeed, unlike the prior art where, because a place of the teeth of each of the calendar rings is toothless, the jumpers must be double top and press between the tips 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 remain in engagement with the date ring concerned, even during the passage of the missing tooth.
  • jumpers according to the invention are therefore classically terminated by two inclined planes that support between the tips of two teeth immediately successive to maintain the date rings in the desired position. These jumpers are therefore of conventional design and exert on the calendar rings a constant intensity of retention force, regardless of the position of said rings.
  • the present invention proceeds from the general inventive idea of providing a date mechanism for a timepiece comprising on the one hand a drive wheel making a turn every twenty-four hours and driving the calendar rings by action. on their teeth, and secondly a correction device for quickly changing the indications provided by the date mechanism.
  • the date rings each comprise two inner peripheral teeth, one of which is intended to cooperate with the drive wheel, while the other cooperates with the correction device. Furthermore, a location of each of these teeth is toothless to define an extended rest position of the ring considered.
  • the present invention aims to provide a date mechanism of the kind described above which the jumper device for arresting effect comprises two jumper space-saving, simple to manufacture and ensuring proper positioning of the date rings.
  • each of the two date rings comprises two sets of teeth with teeth superimposed, the location of the missing tooth for the two toothings are not the same, so that the jumpers are constantly housed between two successive teeth of one or other of the teeth of a given ring and therefore remain in engagement with the date ring concerned, even when passing the missing tooth.
  • the figure 1 is a top view 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 calendar 4 superimposed on a lower date ring 6.
  • the upper date ring 4 has sixteen sectors, while the lower date ring 6 has seventeen sectors.
  • the upper ring 4 covers fifteen of its sectors markings "17" to "31", while the last sector is provided with 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 upper and lower staggered teeth, the teeth of which are designated respectively by 10 and 12 are superimposed, a place 14 of the upper toothing and a location 16 of the lower toothing being toothless (see figure 4 ).
  • the inner circumference of the lower date ring 6 comprises two peripheral teeth each made of a succession of regularly spaced teeth, these peripheral teeth extending in two stepped rows, respectively upper and lower, the teeth 18 of the row being offset relative to the teeth 20 of the lower row (see figure 5 ).
  • the toothing of the lower row is formed of two lower and additional staggered teeth whose teeth, designated respectively by 20 and 22, are superimposed.
  • a location 24 of the upper toothing and a location 26 of the lower toothing are toothless.
  • the date mechanism comprises a date drive wheel 28 making a turn every twenty-four hours and which drives the calendar rings 4 and 6 by action on the teeth 10 and 20 of the upper toothing of said upper ring 4 and the lower toothing of said lower ring 6.
  • the position of the drive wheel 28 relative to the upper and lower teeth respectively of the upper 4 and lower 6 rings is such that when one of these rings has its free position (window 8 for the upper ring 4 and unmarked sector for the lower ring 6) at the display location 30 of the watch movement 1 (dial counter assumed to be removed and which would occupy the position where the figure "16") is visible, the drive wheel 28 is opposite the missing tooth, respectively 14 or 26, of the upper toothing of the upper ring 4 or of the lower toothing of the ring i lower 6.
  • the date mechanism also comprises a correction device for quickly 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 pin 33 and drives the date rings 4 and 6 by action on the teeth 12 and 18 of the lower toothing of said upper ring 4 and the upper toothing of said lower ring 6.
  • the position of the sliding pinion 32 with respect to the lower and upper sets respectively of the upper and lower rings 6 and 6 is such that when one of these rings has its free position at the display position 30 of the watch movement, the sliding pinion 32 is opposite the missing tooth, respectively 16 or 24, of the lower toothing of the upper ring 4 or the upper toothing of the lower ring 6.
  • a jumper locking device 34 comprises two jumpers 36 and 38 which cooperate respectively with the teeth 10, 12 of the upper and lower teeth of the upper ring 4 and with the teeth 20, 22 of the lower and additional teeth of the 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 given ring, so that they remain in engagement with the relevant date ring even when passing the missing tooth.
  • the date rings 4 and 6 each have an abutment, respectively 40 and 42.
  • figures 4 and 5 show the detail of this arrangement.
  • the abutment 40 extends perpendicular to the plane of the upper date ring 4, while the abutment 42 extends radially out of the outer perimeter of the lower date ring 6.
  • the upper date ring 4 has its window 8 at the display location 30 and simultaneously its missing teeth 14 and 16 vis-à-vis respectively the drive wheel 28 and the sliding pinion 32. It is understood that the missing teeth 14 and 16 define a rest position of the upper date ring 4, position in which neither the drive wheel 28 nor the sliding pinion 32 can act on said upper date ring 4.
  • the wheel drive 28 therefore drives only the lower date ring 6 which, to achieve the position shown, has been conducted successively in situations where he exhibited markings "11", "12", ..., "15” and finally "16". At the moment when the marking "16" appears, the stop 42 comes to bear against the stop 40.
  • the ring 4 will also be driven, so that the window 8 will disappear from the display location 30 to make room for the marking "17" of the upper ring 4.
  • the lower ring 6 which will present its missing teeth facing, respectively, 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, nor the sliding pinion 32 can act on said lower date ring 6.
  • the sliding pinion 32 does not mesh with the teeth of the when it is set in motion by the user by means of the correction rod 33. During normal operation of the date mechanism, the sliding pinion 32 occupies a position away from the date rings 4 and 6. Finally, it will be noted already that the drive wheel 28 drives the date rings 4 and 6 by means of a finger having 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 which is passing it and falls into the hollow defined by this tooth and the next tooth.
  • the figure 7 is an exploded view of the watch movement 1 provided with the date mechanism according to the invention.
  • This movement 1 comprises the plate 2 which supports and rotates the two lower and upper date rings 6 and 4.
  • In the center of the plate 2 is conventionally the axis of the hour wheel 44 on which the hour wheel is engaged. 46.
  • a bridge 48 carries the stop device 34 provided with its two jumpers 36 and 38 which act respectively on the upper date ring 4 and on the lower date ring 6.
  • the drive wheel 28 comprises a wheel 50 driven, via a not shown multiplier mobile, by the hour wheel 46 so as to perform a complete revolution 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.
  • 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 kinematic chain comprising deflection wheels 60 and 62 and a pinion 64.
  • the date mechanism according to the invention is held axially on the plate 2 by means of a holding plate 66 fixed with the aid of screw 68.
  • the figure 8 is a developed representation of the teeth of the upper 4 and lower date ring 6.
  • the upper date ring 4 has sixteen teeth identified by the 1, 2, ..., 15 and 16, while the lower date ring 6 comprises seventeen teeth identified by the numerals 1, 2, ..., 16 and 17.
  • the upper ring 4 therefore comprises 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 location 14 of the upper toothing and a location 16 of the lower toothing, each materialized by a solid line, being toothless.
  • the lower date ring 6 also comprises two stepped teeth whose teeth, designated respectively by 18 and 20, are offset, a place 24 of the upper toothing and a place 26 of the lower toothing, each materialized by a solid circle. , being toothless.
  • the lower date ring 6 further comprises an additional set of 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 pinion 32 vis-à-vis the teeth of the upper date ring 4 and lower 6 are marked by the straight segments A-A and B-B respectively.
  • the two jumpers 36 and 38 are represented by two rectangles which bear the same numerical references. As can be seen from the examination of 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 has its two missing teeth 14 and 16 vis-à-vis respectively the drive 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 number "16" carried by the lower ring 6.
  • the stop 42 of the lower ring 6 comes into abutment against the stop 40 of the upper ring 4.
  • the upper ring 4 will also be driven. It will then be the lower ring 6 which will present its missing teeth 24 and 26 opposite, respectively, the drive wheel 28 and the sliding pinion 32, while the missing teeth 14 and 16 of the upper ring 4 will have advanced one step.
  • 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 during the passage of the missing teeth, said jumpers are always engaged between two immediately consecutive teeth of the upper and lower disc teeth, ensuring proper positioning of these discs.

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

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 calendar 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 has been provided by the Swiss patent application CH 660 941 in the name of Brandi whose purpose is to provide a counting device and cyclic display window for a watch date which, while being purely mechanical and simple configuration, makes it possible to give the date indication a great deal 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'entraînement de quantième, faisant classiquement un tour toutes les vingt-quatre heures, entraîne les anneaux de quantième d'une façon classique, par action sur leurs dents. La position du doigt entraîneur 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'entraînement se trouve en face de la position exempte de dent de l'anneau concerné.For this purpose, the Brandi patent teaches a date mechanism mainly comprising a date ring greater than sixteen sectors, superimposed on a lower ring having seventeen sectors. The upper ring covers fifteen of its sectors markings "17" to "31" while the last sector is equipped with 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 inner circumference of the two rings has teeth, a location for the upper ring and a location for the lower ring being toothless. A date training finger, typically making a turn every twenty-four hours, drives the calendar rings in a conventional manner, by action on their teeth. The position of the driving finger relative to the teeth of the rings is such that when a ring has its free position (aperture for the upper ring and unmarked sector for the lower ring) at the display location of the shows, the drive finger is in front of the tooth-free position of the concerned ring.

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'entraînement qui fait un tour toutes les vingt-quatre heures et qui entraîne 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 twice that of a conventional date mechanism. This date mechanism is animated by a training finger which makes a turn 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 quickly change the indication provided by the date mechanism. In addition, there is a problem with regard to the positioning of the date rings. In fact, according to the Brandi patent, two jumper locking devices act respectively on the teeth of the upper ring and on the teeth of the lower ring. But, considering that a place of the teeth of each of these rings is toothless, these jumpers must be double top and support between the tips of three successive teeth. These jumpers must therefore be large and are therefore bulky. On the other hand, the mechanical characteristics of the retention exerted by the jumpers on the two date rings are different depending on whether the missing tooth is in first, second or third position vis-à-vis said jumpers. We must therefore 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 object of the present invention is to overcome the aforementioned drawbacks as well as others by providing a date mechanism making it possible to give the date indication a large format, this mechanism comprising two superposed 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, a rapid correction device for quickly changing 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 date mechanism of the aforementioned kind comprising a jumper device for securing 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'entraînement 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 intérieures 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'entraînement 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'entraînement 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'entraînement 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 a timepiece such as a wristwatch comprising two superposed top and bottom date rings, the surface of which is divided into a plurality of sectors, the ring 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 an open or transparent window, while the lower ring comprises seventeen sectors, sixteen of which are respectively the other sixteen markings of the 31-position cycle, and the seventeenth of which is one excess sector, each of these rings cooperating with drive means in such a way that the markings of the lower ring appear successively in a display area through the window, the upper ring remaining stationary, then, lower ring being stationary, 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 of a succession of regularly spaced teeth, these peripheral teeth extending according to two stepped rows, 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 of the lower ring are offset, a location of each of the upper ring teeth and lower being toothless, 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 relative to the upper and lower teeth of the respectively upper and lower rings, and the position of the correction mechanism with respect to the upper and lower teeth of the respectively upper and lower rings being such that when the upper ring has its surplus sector at the location of said display area, the drive means and the correction device are respectively ectively opposite the toothless place of the upper and lower teeth of the upper ring, and when the lower ring has its surplus sector at the location of said display area, the driving means and the correction device are respectively facing the toothless place of the toothing of the lower row and that of the upper row 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 date mechanism comprising two superposed calendar rings and a fast correction device for quickly changing the information provided by the date mechanism. Advantageously, when one of the rings has its surplus sector in the display area, the correction device is located opposite the toothless place of the toothing of this ring. As a result, the correction device can only act on the other ring, so that the risks of disordering 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 comprises a sliding pinion. The sliding pinion meshes with the teeth of the calendar rings only when it is moved 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 date mechanism comprises jumper locking means, the lower date ring comprising an additional toothing located under the lower teeth of this ring and whose teeth are arranged in coincide with those of said lower toothing. Thanks to these characteristics, the jumper device is easy to manufacture and allows the two date rings to be properly positioned. Indeed, unlike the prior art where, because a place of the teeth of each of the calendar rings is toothless, the jumpers must be double top and press between the tips 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 remain in engagement with the date ring concerned, even during the passage of the missing tooth. The jumpers according to the invention are therefore classically terminated by two inclined planes that support between the tips of two teeth immediately successive to maintain the date rings in the desired position. These jumpers are therefore of conventional design and exert on the calendar rings a constant intensity of retention force, regardless of 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 boîte 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 boîte de montre de la figure 1;
  • la figure 3 est une vue en perspective sous un second angle de la boîte 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:
  • the figure 1 is a top view of a watch case comprising a date mechanism according to the invention;
  • the figure 2 is a perspective view at a first angle of the watch case of the figure 1 ;
  • the figure 3 is a perspective view at a second angle of the watch case of the figure 1 ;
  • the figure 4 is a perspective view of the upper date ring;
  • the figure 5 is a perspective view of the lower date ring;
  • the figure 6 is a view similar to that of figures 4 and 5 , the date rings being superimposed;
  • the figure 7 is an exploded view of the date mechanism, and
  • the 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'entraînement faisant un tour toutes les vingt-quatre heures et entraînant 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'entraînement, 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'entraînement 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 providing a date mechanism for a timepiece comprising on the one hand a drive wheel making a turn every twenty-four hours and driving the calendar rings by action. on their teeth, and secondly a correction device for quickly changing the indications provided by the date mechanism. To achieve this result, the date rings each comprise two inner peripheral teeth, one of which is intended to cooperate with the drive wheel, while the other cooperates with the correction device. Furthermore, a location of each of these teeth is toothless to define an extended rest position of the ring considered. More specifically, when a ring has its free position (aperture for the upper ring and unmarked sector for the lower ring) at the display location of the watch, the drive wheel and the correction device are next to the toothless place of the teeth of the ring concerned. As a result, the ring concerned is in its rest position, and the correction device can act only on the other ring, so that the risks of disordering the date mechanism are avoided. Moreover, the present invention also aims to provide a date mechanism of the kind described above which the jumper device for arresting effect comprises two jumper space-saving, simple to manufacture and ensuring proper positioning of the date rings. This result is achieved thanks to the fact that, contrary to the prior art, where due to the fact that a place in the toothing of each of the calendar rings is devoid of teeth, the jumpers must cooperate with three successive teeth of the toothing. 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 with teeth superimposed, the location of the missing tooth for the two toothings are not the same, so that the jumpers are constantly housed between two successive teeth of one or other of the teeth of a given ring and therefore remain in engagement with the date ring concerned, even when passing the missing tooth.

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.The figure 1 is a top view of a watch movement comprising a date mechanism according to the invention. Designated as a whole by the general reference numeral 1, the movement is mounted in a plate 2. The date mechanism according to the invention mainly comprises a ring of upper date calendar 4 superimposed on a lower date ring 6. The upper date ring 4 has sixteen sectors, while the lower date ring 6 has seventeen sectors. As can be seen from the examination of the figure 1 and better still in the examination of figures 4 and 5 , the upper ring 4 covers fifteen of its sectors markings "17" to "31", while the last sector is provided with 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 purposes of the description and to allow a better understanding of the invention, it will be assumed that this single toothing is formed of two upper and lower staggered teeth, the teeth of which are designated respectively by 10 and 12 are superimposed, a place 14 of the upper toothing and a location 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.Similarly, the inner circumference of the lower date ring 6 comprises two peripheral teeth each made of a succession of regularly spaced teeth, these peripheral teeth extending in two stepped rows, respectively upper and lower, the teeth 18 of the row being offset relative to the teeth 20 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 lower and additional staggered teeth whose teeth, designated respectively by 20 and 22, are superimposed. A location 24 of the upper toothing and a location 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'entraînement de quantième 28 faisant un tour toutes les vingt-quatre heures et qui entraîne 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'entraînement 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'entraînement 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 liaison with Figures 1 to 3 it can be seen that the date mechanism according to the invention comprises a date drive wheel 28 making a turn every twenty-four hours and which drives the calendar rings 4 and 6 by action on the teeth 10 and 20 of the upper toothing of said upper ring 4 and the lower toothing of said lower ring 6. The position of the drive wheel 28 relative to the upper and lower teeth respectively of the upper 4 and lower 6 rings is such that when one of these rings has its free position (window 8 for the upper ring 4 and unmarked sector for the lower ring 6) at the display location 30 of the watch movement 1 (dial counter assumed to be removed and which would occupy the position where the figure "16") is visible, the drive wheel 28 is opposite the missing tooth, respectively 14 or 26, of the upper toothing of the upper ring 4 or of the lower toothing of the ring i lower 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 entraîne 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 quickly 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 pin 33 and drives the date rings 4 and 6 by action on the teeth 12 and 18 of the lower toothing of said upper ring 4 and the upper toothing of said lower ring 6. The position of the sliding pinion 32 with respect to the lower and upper sets respectively of the upper and lower rings 6 and 6 is such that when one of these rings has its free position at the display position 30 of the watch movement, the sliding pinion 32 is opposite the missing tooth, respectively 16 or 24, of the lower toothing of the upper ring 4 or the upper toothing 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 locking device 34 comprises two jumpers 36 and 38 which cooperate respectively with the teeth 10, 12 of the upper and lower teeth of the upper ring 4 and with the teeth 20, 22 of the lower and additional teeth of the 6. In contrast to the prior art where, due to the fact that a place in the toothing of each of the calendar rings is toothless, the chokers must cooperate with three successive teeth of each of the rings to guarantee the positioning these rings even when passing the missing tooth, 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 given ring, so that they remain in engagement with the relevant date ring even 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 each have an abutment, respectively 40 and 42. figures 4 and 5 show the detail of this arrangement. The abutment 40 extends perpendicular to the plane of the upper date ring 4, while the abutment 42 extends radially out of the outer perimeter of 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'entraînement 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'entraînement 28, ni le pignon baladeur 32 ne peuvent agir sur ledit anneau de quantième supérieur 4. La roue d'entraînement 28 entraîne 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 apparaît 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'entraînement 28, l'anneau supérieur 4 sera également entraîné, de sorte que la fenêtre 8 disparaîtra 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'entraînement 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'entraînement 28, ni le pignon baladeur 32 ne peuvent agir sur ledit anneau de quantième inférieur 6. Ainsi, à chaque tour de la roue d'entraînement 28, seul l'anneau supérieur 4 avancera d'un pas, faisant successivement apparaître 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 represented in Figures 1 to 3 , the upper date ring 4 has its window 8 at the display location 30 and simultaneously its missing teeth 14 and 16 vis-à-vis respectively the drive wheel 28 and the sliding pinion 32. It is understood that the missing teeth 14 and 16 define a rest position of the upper date ring 4, position in which neither the drive wheel 28 nor the sliding pinion 32 can act on said upper date ring 4. The wheel drive 28 therefore drives only the lower date ring 6 which, to achieve the position shown, has been conducted successively in situations where he exhibited markings "11", "12", ..., "15" and finally "16". At the moment when the marking "16" appears, the stop 42 comes to bear against the stop 40. At this moment, during the advance which will be imparted to the lower ring 6 by the drive wheel 28, the ring 4 will also be driven, so that the window 8 will disappear from the display location 30 to make room for the marking "17" of the upper ring 4. At this time, it will be the lower ring 6 which will present its missing teeth facing, respectively, the drive wheel 28 and the sliding pinion 32. As for the upper ring 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, nor 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 d one step, successively showing 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 date ring 4, abutting the stop 42 of the lower date ring 6, will simultaneously cause, during the advance of the upper ring 4, 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. During the entire time when the upper ring 4 has moved while the lower ring 6 was at rest, it is the mark-free sector of the which was at the display location 20, however, this being without effect since, in this case, the window 8 was never at the display location 30 and therefore never allowed to see the lower ring 6. Then, the sixteen markings of the lower ring 6 scroll successively until the return to the situation shown in FIGS. 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 entraînés non pas par la roue d'entraînement 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'entraînement 28 entraîne 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 entraîné 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 rings of upper date 4 and lower 6 would be the same if they were driven not by the drive wheel 28, but by the sliding pinion 32 actuated by the user via the rod The two rings 4 and 6 would simply turn faster, allowing the user to quickly correct the indication provided by the date mechanism. 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 opposite the missing tooth 16 of the lower toothing of the upper ring 4, while, when the lower ring 6 has 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 also be recalled that the sliding pinion 32 does not mesh with the teeth of the when it is set in motion by the user by means of the correction rod 33. During normal operation of the date mechanism, the sliding pinion 32 occupies a position away from the date rings 4 and 6. Finally, it will be noted already that the drive wheel 28 drives the date rings 4 and 6 by means of a finger having 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 which 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'entraînement 28 comprend une roue 50 entraînée, 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 entraînent 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'entraînement 28, celle-ci sera sans effet sur ledit anneau supérieur 4 et entraînera 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'entraînement 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.The figure 7 is an exploded view of the watch movement 1 provided with the date mechanism according to the invention. This movement 1 comprises the plate 2 which supports and rotates the two lower and upper date rings 6 and 4. In the center of the plate 2 is conventionally the axis of the hour wheel 44 on which the hour wheel is engaged. 46. A bridge 48 carries the stop device 34 provided with its two jumpers 36 and 38 which act respectively on the upper date ring 4 and on the lower date ring 6. The drive wheel 28 comprises a wheel 50 driven, via a not shown multiplier mobile, by the hour wheel 46 so as to perform a complete revolution 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 teeth of said lower ring 6. If the missing tooth 14 of the upper toothing of the upper date ring 4 is opposite the drive wheel 28, it will have no effect on said upper ring 4 and will drive with his finger 54 the lower date ring 6 one step each 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 only the The upper ring 4 will step forward every day.

La roue d'entraînement 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 chaîne 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. Similarly 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 kinematic chain 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 by means of a holding plate 66 fixed with the aid of screw 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.The figure 8 is a developed representation of the teeth of the upper 4 and lower date ring 6. As can be seen from the examination of this figure, the upper date ring 4 has sixteen teeth identified by the 1, 2, ..., 15 and 16, while the lower date ring 6 comprises seventeen teeth identified by the numerals 1, 2, ..., 16 and 17. The upper ring 4 therefore comprises 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 location 14 of the upper toothing and a location 16 of the lower toothing, each materialized by a 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 comprises two stepped teeth whose teeth, designated respectively by 18 and 20, are offset, a place 24 of the upper toothing and a place 26 of the lower toothing, each materialized by a solid circle. , being toothless. The lower date ring 6 further comprises an additional set of teeth whose teeth 22 coincide with the teeth 20 of the lower toothing.

La position de la roue d'entraînement 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 pinion 32 vis-à-vis the teeth of the upper date ring 4 and lower 6 are marked by the straight segments A-A and B-B respectively. Finally, the two jumpers 36 and 38 are represented by two rectangles which bear the same numerical references. As can be seen from the examination of 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'entraînement 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 apparaît 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'entraînement 28, l'anneau supérieur 4 sera également entraîné. Ce sera alors l'anneau inférieur 6 qui présentera ses dents manquantes 24 et 26 en regard, respectivement, de la roue d'entraînement 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 represented in figure 8 , the upper date ring 4 has its two missing teeth 14 and 16 vis-à-vis respectively the drive 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 number "16" carried by the lower ring 6. At the moment when the mark "16" appears, the stop 42 of the lower ring 6 comes into abutment against the stop 40 of the upper ring 4. Thus; when the advance which will be imparted to the lower ring 6 by the drive wheel 28, the upper ring 4 will also be driven. It will then be the lower ring 6 which will present its missing teeth 24 and 26 opposite, respectively, the drive wheel 28 and the sliding pinion 32, while the missing teeth 14 and 16 of the upper ring 4 will have advanced one step.

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 during the passage of the missing teeth, said jumpers are always engaged between two immediately consecutive teeth of the upper and lower disc teeth, 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 comme définie par les revendications. 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 envisaged by those skilled in the art without departing from the scope of the present invention as defined. by the claims. In particular, the upper date ring could have seventeen sectors, while the lower date ring would have only sixteen.

Claims (5)

  1. Date mechanism for a timepiece such as a wristwatch including two superposed respectively upper (4) and lower (6) date rings, whose surface is divided into a plurality of sectors, the upper ring (4) including sixteen sectors, fifteen of which respectively bear fifteen successive markings of a cycle of 31 positions, and the sixteenth of which is an extra sector having an open or transparent aperture (8), whereas the lower ring (6) includes seventeen sectors, sixteen of which bear respectively the other sixteen markings of the cycle of 31 positions, and the seventeenth of which is an extra sector, each of said rings (4, 6) cooperating with drive means such that the markings of the lower ring appear successively in a display zone (30) through the aperture (8), the upper ring (4) remaining immobile, and that the lower ring being immobile, the markings of upper ring (4) appear successively in the display zone (30), the upper ring (4) concealing the markings of the lower ring (6), the date mechanism being characterised in that each ring (4, 6) includes two peripheral interior toothings each made of a succession of regularly spaced teeth (10, 12; 18, 20), these peripheral toothings extending along two stepped, respectively upper and lower rows, the teeth (10, 12) of the upper and lower rows of the upper ring (4) being superposed, whereas the teeth (18, 20) of the upper and lower rows of the lower ring (6) are staggered, one location (14, 16; 24, 26) of each of the toothings of the upper (4) and lower (6) rings being tooth free, and in that said date mechanism further includes a correction device for altering the indication provided by the date mechanism, the position of the drive means with respect to the upper and lower toothings of the respectively upper (4) and lower (6) rings, and the position of the correction mechanism with respect to the lower and upper toothings of the respectively upper (4) and lower (6) rings being such that when the upper ring (4) has its extra sector at the location of said display zone (30), the drive means and the correction device are located respectively opposite the tooth free location (14, 16) of the toothing of the upper row and that of the lower row of the upper ring, and when the lower ring (6) has its extra sector at the location of said display zone (30), the drive means and the quick correction device are located respectively opposite the tooth free location (24, 26) of the toothing of the lower row and that of the upper row of the lower ring (6).
  2. Date mechanism according to claim 1, characterised in that the correction device includes a sliding pinion (32) which only meshes with the lower and upper toothings of the respectively upper (4) and lower (6) date rings when it is set in motion by means of a correction stem (33).
  3. Date mechanism according to claims 1 or 2, characterised in that it includes jumper-effect stopping means (34) which cooperate with the upper and lower toothings of the upper ring (4), and with the lower toothing of the lower ring (6) as well as with an additional toothing located under the lower toothing of said lower ring (6) and whose teeth (22) are arranged to coincide with those (20) of said lower toothing.
  4. Date mechanism according to claim 3, characterised in that the stopping means (34) include two jumpers (36, 38) the height of which is substantially equal to the thickness of the teeth (10, 12) and (20, 22).
  5. Date mechanism according to any of claims 1 to 4, characterised in that the drive means include a wheel (28) which makes one revolution in 24 hours and which is fitted with two fingers (52, 54) which respectively drive the upper (4) and lower (6) date rings by acting 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
DE60332637T DE60332637D1 (en) 2003-11-26 2003-11-26 Calendar mechanism for a watch with two superimposed rings
EP03027146A EP1536299B1 (en) 2003-11-26 2003-11-26 Calendar mechanism for a watch comprising two superposed date annuli
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 Timepiece with a date mechanism comprising two superposed 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 HK1077883A1 (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

Publications (2)

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

Family

ID=34442880

Family Applications (1)

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

Country Status (9)

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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)
HK (1) HK1077883A1 (en)
SG (1) SG112097A1 (en)
TW (1) TW200519553A (en)

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CN101151583B (en) * 2005-03-30 2010-05-19 西铁城控股株式会社 Display device and calendar device of timepiece
US20070047390A1 (en) * 2005-08-29 2007-03-01 Shigeo Suzuki Timepiece with calendar mechanism indicating date by plurality of date indicators
JP2007121077A (en) * 2005-10-27 2007-05-17 Casio Comput Co Ltd Timepiece with calendar function, assembly method of timepiece with calendar function, and radio-controlled timepiece with calendar function
FR2893726B1 (en) * 2005-11-21 2008-01-18 Sylvain Boileau QUANTIME DISPLAY MECHANISM FOR WATCHES
DE602006007855D1 (en) * 2006-09-26 2009-08-27 Eta Sa Mft Horlogere Suisse Movement comprising a mounting plate for a display ring
JP4595977B2 (en) * 2007-09-20 2010-12-08 カシオ計算機株式会社 Dial and electronic equipment
EP2141556B1 (en) * 2008-07-03 2012-06-27 ETA SA Manufacture Horlogère Suisse Calendar mechanism for a timepiece
US7859950B2 (en) * 2008-08-11 2010-12-28 Blancpain S.A. Large date calendar day mechanism for a timepiece
EP2434354B1 (en) * 2010-09-27 2012-12-12 ETA SA Manufacture Horlogère Suisse Large display with aperture for a clock piece
JP5853504B2 (en) * 2011-08-31 2016-02-09 セイコーエプソン株式会社 Dial assembly and clock
JP6015207B2 (en) * 2012-07-31 2016-10-26 カシオ計算機株式会社 Information display device and analog electronic timepiece
EP2945026B1 (en) * 2014-05-14 2018-01-03 ETA SA Manufacture Horlogère Suisse Quick correction mechanism of a timepiece
HK1252182A2 (en) * 2018-07-06 2019-05-17 Pengelly Co Ltd Watch with geometric codes

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DE2036464C3 (en) * 1970-07-22 1974-10-03 Gebrueder Junghans Gmbh, 7230 Schramberg Clock with date display
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JP3081992B2 (en) * 1996-10-02 2000-08-28 セイコーインスツルメンツ株式会社 Wristwatch with calendar
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JP3939073B2 (en) * 2000-03-31 2007-06-27 セイコーインスツル株式会社 Clock with calendar mechanism
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JP4451634B2 (en) * 2003-10-31 2010-04-14 シチズンホールディングス株式会社 Calendar mechanism

Also Published As

Publication number Publication date
CN1621975B (en) 2012-11-07
US6925032B2 (en) 2005-08-02
EP1536299A1 (en) 2005-06-01
SG112097A1 (en) 2005-06-29
HK1077883A1 (en) 2006-02-24
TW200519553A (en) 2005-06-16
KR101067067B1 (en) 2011-09-22
US20050111303A1 (en) 2005-05-26
DE60332637D1 (en) 2010-07-01
CN1621975A (en) 2005-06-01
KR20050050554A (en) 2005-05-31
JP2005156562A (en) 2005-06-16
JP4523835B2 (en) 2010-08-11

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