EP3779609B1 - Display device for a timepiece - Google Patents

Display device for a timepiece Download PDF

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Publication number
EP3779609B1
EP3779609B1 EP19191485.2A EP19191485A EP3779609B1 EP 3779609 B1 EP3779609 B1 EP 3779609B1 EP 19191485 A EP19191485 A EP 19191485A EP 3779609 B1 EP3779609 B1 EP 3779609B1
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EP
European Patent Office
Prior art keywords
display
disc
discs
markings
date
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EP19191485.2A
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German (de)
French (fr)
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EP3779609A1 (en
Inventor
Salvatore Palermo
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Patek Philippe SA Geneve
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Patek Philippe SA Geneve
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Priority to EP19191485.2A priority Critical patent/EP3779609B1/en
Publication of EP3779609A1 publication Critical patent/EP3779609A1/en
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    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B19/00—Indicating the time by visual means
    • G04B19/24—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars
    • G04B19/243—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars characterised by the shape of the date indicator
    • G04B19/247—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars characterised by the shape of the date indicator disc-shaped

Definitions

  • the subject of the present invention is a display mechanism for a timepiece, in particular a date display mechanism.
  • optical magnification means such as a magnifying glass
  • the units and tens digits are distributed on separate mobiles and the size of these digits can then be considerably enlarged.
  • the date mechanisms applying this last solution are commonly called “big date” and are well known.
  • the document CH 310 559 describes for example a date display, in which the date is indicated by two juxtaposed or coplanar discs, one bearing the tens digits, the other those of the units. Other arrangements of the units and tens discs are possible.
  • the documents EP 0 529 191 and EP 1 017 996 describe a date display with a units disc and a tens disc coaxial and superimposed.
  • the documents CH 690 515 , DE 1020050106012 and CH 688 671 describe a date display with a units disc and a coplanar and coaxial tens disc.
  • EP 1 426 836 further discloses coplanar discs.
  • the object of the present invention is to produce a display mechanism for a timepiece, in particular a date display mechanism, offering great readability without harming the aesthetics of the display and while remaining simple and compact in its construction.
  • the display mechanism according to the present invention is intended to equip a timepiece, and in particular a wristwatch or a pocket watch, for the display of information through an aperture.
  • the display mechanism is a date display mechanism.
  • the date display mechanism illustrated in figures 1 to 11 comprises a first date disc 1 whose circumference is truncated over a sector of approximately 60° (in the example illustrated, this sector therefore has a radius strictly less than the outer radius of the solid, non-truncated part of the rest of the disc ).
  • This truncated sector is designated by notch 11 below.
  • the first date disc 1 bears the marks 4 to 18 (fifteen marks designated by the reference 10) arranged on the rest of its circumference (that is to say on its solid part of 300°).
  • each marker 10 occupies an angular sector of 20° and the notch 11 therefore occupies the place of three markers.
  • the date display mechanism further comprises a second date disc 2 whose circumference is truncated over a sector of approximately 60°, designated by notch 21 below (in the example illustrated, this sector therefore has a radius strictly less than the outer radius of the solid, non-truncated part of the rest of the disc).
  • the second date disc 2 bears the marks 19 to 31, 1, 2 and 3 (sixteen marks designated by the reference 20) arranged on the rest of its circumference (that is to say on its solid part of 300°) .
  • each marker 20 occupies an angular sector of 18.75° and the notch 21 therefore occupies the place of three markers (3.2 markers according to the strict division).
  • the first and second date discs 1 and 2 are arranged to be coplanar and to cooperate with a one-stop window 3 arranged on the center line of the first and second date discs 1, 2.
  • first and second date discs 1 and 2 are arranged so that the distance between their center is strictly less than the sum of the radii of their solid part (part of larger radius). There should therefore be overlap but the notches 11, 21 are chosen and the discs are arranged relative to each other so that they can pivot, the first in one direction, the second in the opposite direction, without block although being coplanar.
  • the first and second date discs 1, 2 have a similar shape and size: that is to say that their solid part have the same outer radius while the notches 11, 12 are truncated sectors of almost identical size and shape.
  • the first date disc 1 is integral with a first pinion 5 comprising eighteen teeth in the illustrated embodiment.
  • a first jumper 7 is arranged to ensure the angular positioning of the first pinion 5.
  • the second date disc 2 is integral with a second pinion 6 comprising nineteen teeth in the illustrated embodiment.
  • a second jumper 8 is arranged to ensure the angular positioning of the second pinion 6.
  • the first and second date pinions 5, 6 are driven by a driving wheel set 9 kinematically connected to the going train of the movement of the timepiece for its driving at the speed of one step per day (around midnight).
  • the driving wheel 9 is kinematically connected to the first date disc 1 for its drive in a first direction (counterclockwise in the figures), while it is kinematically connected to the second date disc 2 for its drive in a second direction opposite to the first (clockwise in the figures).
  • the driving wheel set 9 comprises a first driving wheel 91 and a second driving wheel 92 which are coaxial, superposed and integral with each other.
  • the first driving wheel 91 has a toothless sector 911 and a toothed sector 912 comprising sixteen teeth and the second driving wheel 92 has a toothless sector 921 and a toothed sector 922 comprising seventeen teeth (see figure 11 ).
  • the first drive wheel 91 cooperates with an intermediate transmission 4 which itself meshes with the first pinion 5.
  • the second drive wheel 92 cooperates directly with the second pinion 6.
  • the driving mobile 9 when the driving mobile 9 completes a full revolution (31 steps), it drives the first date disc 1 alone for 12 steps in a first direction, then the two discs simultaneously in opposite directions for 3 steps (the notches 11, 21 occupying the place of 3 markers), then the second date disc 2 alone for 13 steps in a second direction opposite to the first and finally the two discs simultaneously in opposite directions for 3 steps.
  • the figures 1 to 10 illustrate this operation.
  • the figures 1 to 4 illustrate the transition from the 2nd to the 5th of the month.
  • the date displayed through the window 3 is the 2 carried by the second date disc 2.
  • the notch 11 of the first date disc 1 is opposite the said window 3.
  • the first and second date discs 1, 2 are driven simultaneously via the toothed sectors 912, 922 of the first and second drive wheels 91, 92 which cooperate respectively with the transmission 4 and the second pinion 6.
  • the first date disc 1 pivots in a first direction while that the second disc 2 pivots in a second direction opposite to the first.
  • the date displayed through window 3 passes to 3 carried by the second date disc 2, while the first date disc 1 has also taken a step but its notch 11 is still opposite window 3 ( figure 2 ).
  • the second date disc 2 pivots in the second direction into a position in which its notch 21 is now opposite the window 3, while the first date disc 1 pivots by one step in the first direction in a position in which the mark 4 of this first disc 1 is displayed through the window 3 ( picture 3 ).
  • the second date disc 2 pivots in the second direction into a position in which its notch 21 is still opposite the aperture 3, while the first date disc 1 pivots in the first direction a step in a position in which marker 5 is now displayed through window 3 ( figure 4 ).
  • the toothless sector 921 of the second drive wheel 92 now cooperates with the second pinion 6.
  • the second date disc 2 remains stationary, while the first disc 1 pivots in the first direction, still driven by the toothed sector 912 of the first drive wheel 92, ensuring the passage from 5 to 17 (passing in particular through 13 as illustrated in figure 5 ).
  • the second date disc 2 will remain stationary during the successive steps of the driving wheel set 9 ( figure 5 and 6 ) until the toothed sector 922 of the second drive wheel 92 again cooperates with the second pinion 6. At this time, the date displayed through the aperture 3 is the 17 carried by the first date disc 1 ( figure 6 ).
  • the first and second date discs 1, 2 are driven simultaneously in their respective direction of rotation: the date displayed through the window 3 changes to 18 carried by the first date disc 1, while the second date disc 2 has also taken a step but its notch 21 is still opposite the aperture 3 ( figure 7 ).
  • the first date disc 1 pivots in the first direction into a position in which its notch 11 is now opposite the window 3, while the second date disc 2 pivots by one step in the second direction in a position in which the mark 19 is displayed through the window 3 ( figure 8 ).
  • the first date disc 1 pivots in the first direction in a position in which its notch 11 is still opposite the window 3, while the second date disc 2 pivots by one step in the second direction in a position in which the mark 20 is now displayed through the window 3 ( figure 9 ).
  • the toothless sector 911 of the first driving wheel 91 cooperates with the intermediate transmission 4.
  • the first disc 1 remains stationary, while the second disc 2 pivots in the second direction, still driven by the toothed sector 922 of the second driving wheel 92, ensuring the change from 20 to 2 (passing in particular through 26 as illustrated in figure 10 ). Back to 2, the cycle can resume.
  • the date display mechanism is therefore a display of the “big date” type offering large markers and therefore readable without magnification means, displayed in a single window, without separation between the tens and the units or variation in height between the various marks displayed whether the marks are carried by the first or the second date disc 1, 2 thus offering a very readable and aesthetic display.
  • the construction of the mechanism is simple.
  • the date display mechanism described above could of course include a date correction mechanism, manual or automatic, in particular for the passage from the 30th to the 1st of the month or from the 28th or 29th to the 1st of the month.
  • the calendar display mechanism above has been described by way of example only and the present invention can be applied to a large number of displays such as the display of the number of the week, a time display, phases moon, month...
  • the display mechanism for a timepiece comprises an aperture, a first display disc and a second display disc, the display discs being coplanar and each bearing markers.
  • the window is arranged on the line of the centers of the first and second display discs.
  • the display mechanism is arranged to allow the first and second display discs to be driven in rotation in opposite directions and in the same plane so as to successively display the marks of the first display disc then the marks of the second disc display through the counter.
  • the first and second display discs each have a solid part characterized by a first, respectively second outer radius and a recess or notch.
  • the markers carried by each of the discs are distributed over their solid part.
  • the first and second discs are arranged so that the distance between their center is strictly less than the sum of the first and second external radii.
  • the notches are each shaped so that when the notch of a disc is opposite the aperture, it can contain the solid part of the other disc so that the first and second discs can be coplanar without overlapping.
  • the first and second display discs 1, 2, and their solid part have essentially the same outer radius (discs of similar size).
  • the first and second outer radii of the solid parts of the first and second discs may be different and will be chosen according to the type of display or the position of the aperture on the dial (at 6 o'clock, at 3 o'clock, etc.). which could require having one disc larger than the other.
  • the notches of each of the discs can also vary according to the size of the first and second discs.
  • the notches could have the shape of a dish (following a chord for example), an arc of a circle or a “pie chart”, that is to say a truncated sector down to the center of the disc. They could also be different in shape and/or in size from one disk to another.
  • the window and the display discs are arranged so that, when a marker is displayed in the window, a portion of the disc bearing said marker extends under the entire window in order to ensure an aesthetic visual without parasitic geometry (void or edge of the disc which would be visible through the window).
  • the markers are arranged on each of the first and second display discs so that the two circles passing substantially one through the center of the markers of the first disc and the other through the center of the markers of the second disc intersect a point located essentially in the center of the wicket. This makes it possible to ensure the centering of the markers in the window when they are displayed.
  • the size of the markers of the first and second display discs is identical even if their number may vary between one disc and the other, as illustrated in the embodiment above.

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

Description

La présente invention a pour objet un mécanisme d'affichage pour pièce d'horlogerie, en particulier un mécanisme d'affichage du quantième.The subject of the present invention is a display mechanism for a timepiece, in particular a date display mechanism.

Une des difficultés rencontrées dans l'affichage du quantième pour une pièce d'horlogerie, et notamment une montre bracelet, est sa lisibilité. En effet, avec trente-et-un repères à répartir sur un mobile d'affichage (disque de quantième), la taille des repères est souvent très petite, voire trop petite pour être lus confortablement. La problématique est la même pour l'affichage du numéro de la semaine qui comprend cinquante-deux ou cinquante-trois repères.One of the difficulties encountered in displaying the date for a timepiece, and in particular a wristwatch, is its readability. Indeed, with thirty-one markers to be distributed on a mobile display (date disc), the size of the markers is often very small, even too small to be read comfortably. The problem is the same for the display of the number of the week which includes fifty-two or fifty-three markers.

Plusieurs solutions à ce problème ont été envisagées; soit des moyens d'agrandissement optiques, comme une loupe, sont prévus sur la glace pour faciliter la lecture, soit les chiffres des unités et des dizaines sont répartis sur des mobiles séparés et la taille de ces chiffres peut être alors considérablement agrandie.Several solutions to this problem have been considered; either optical magnification means, such as a magnifying glass, are provided on the crystal to facilitate reading, or the units and tens digits are distributed on separate mobiles and the size of these digits can then be considerably enlarged.

Les mécanismes de quantième appliquant cette dernière solution sont communément appelés «grande date» et sont bien connus. Le document CH 310 559 décrit par exemple un affichage de quantième, dans lequel le quantième est indiqué par deux disques juxtaposés ou coplanaires, l'un portant les chiffres des dizaines, l'autre ceux des unités. D'autres agencements des disques des unités et des dizaines sont possibles. Les documents EP 0 529 191 et EP 1 017 996 décrivent un affichage de quantième avec un disque des unités et un disque des dizaines coaxiaux et superposés. Les documents CH 690 515 , DE 1020050106012 et CH 688 671 décrivent un affichage de quantième avec un disque des unités et un disque des dizaines coplanaires et coaxiaux. EP 1 426 836 divulgue encore des disques coplanaires.The date mechanisms applying this last solution are commonly called “big date” and are well known. The document CH 310 559 describes for example a date display, in which the date is indicated by two juxtaposed or coplanar discs, one bearing the tens digits, the other those of the units. Other arrangements of the units and tens discs are possible. The documents EP 0 529 191 and EP 1 017 996 describe a date display with a units disc and a tens disc coaxial and superimposed. The documents CH 690 515 , DE 1020050106012 and CH 688 671 describe a date display with a units disc and a coplanar and coaxial tens disc. EP 1 426 836 further discloses coplanar discs.

Ces mécanismes présentent plusieurs inconvénients. D'une part, lorsque les dizaines et les unités sont portées par des disques d'affichage coplanaires, il existe alors un espace entre ces deux chiffres visible au travers d'un guichet et qui n'est pas particulièrement esthétique. Ensuite, lorsqu'ils sont superposés, la différence de hauteur entre les disques d'affichage, également visible à travers un guichet, nuit à la lecture et à l'esthétisme de l'affichage du quantième. D'autre part, ces mécanismes sont souvent complexes et encombrants.These mechanisms have several drawbacks. On the one hand, when the tens and units are carried by coplanar display discs, it There is then a space between these two digits visible through an aperture and which is not particularly aesthetic. Then, when they are superimposed, the difference in height between the display discs, also visible through an aperture, is detrimental to reading and to the aesthetics of the date display. On the other hand, these mechanisms are often complex and cumbersome.

Le but de la présente invention est de réaliser un mécanisme d'affichage pour pièce d'horlogerie, en particulier un mécanisme d'affichage du quantième, offrant une grande lisibilité sans nuire à l'esthétisme de l'affichage et tout en restant simple et peu encombrant dans sa construction.The object of the present invention is to produce a display mechanism for a timepiece, in particular a date display mechanism, offering great readability without harming the aesthetics of the display and while remaining simple and compact in its construction.

La présente invention a pour objet un mécanisme d'affichage selon la revendication 1 ainsi qu'une pièce d'horlogerie selon la revendication 11.

  • Les figures annexées illustrent schématiquement et à titre d'exemple uniquement une forme d'exécution d'un mécanisme d'affichage selon la présente invention.
  • Les figures 1 à 10 illustrent un mécanisme d'affichage du quantième selon une forme d'exécution de l'invention dans différentes positions : le quantième affiché est respectivement 2, 3, 4, 5, 13, 17, 18, 19, 20 et 26.
  • La figure 11 est une vue en perspective du mobile entraîneur du mécanisme d'affichage du quantième des figures 1 à 10.
The subject of the present invention is a display mechanism according to claim 1 and a timepiece according to claim 11.
  • The appended figures illustrate schematically and by way of example only one embodiment of a display mechanism according to the present invention.
  • The figures 1 to 10 illustrate a date display mechanism according to one embodiment of the invention in different positions: the date displayed is respectively 2, 3, 4, 5, 13, 17, 18, 19, 20 and 26.
  • The figure 11 is a perspective view of the driving wheel of the date display mechanism of the figures 1 to 10 .

Le mécanisme d'affichage selon la présente invention est destiné à équiper une pièce d'horlogerie, et notamment une montre bracelet ou une montre de poche, pour l'affichage d'une information au travers d'un guichet. Dans la forme d'exécution illustrée, le mécanisme d'affichage est un mécanisme d'affichage du quantième.The display mechanism according to the present invention is intended to equip a timepiece, and in particular a wristwatch or a pocket watch, for the display of information through an aperture. In the illustrated embodiment, the display mechanism is a date display mechanism.

Le mécanisme d'affichage du quantième illustré aux figures 1 à 11 comprend un premier disque de quantième 1 dont la circonférence est tronquée sur un secteur d'environ 60° (dans l'exemple illustré, ce secteur présente donc un rayon strictement inférieur au rayon extérieur de la partie pleine, non tronquée, du reste du disque). Ce secteur tronqué est désigné par encoche 11 dans la suite. Le premier disque de quantième 1 porte les repères 4 à 18 (quinze repères désignés par la référence 10) agencés sur le reste de sa circonférence (c'est-à-dire sur sa partie pleine de 300°). Dans cette forme d'exécution, chaque repère 10 occupe un secteur angulaire de 20° et l'encoche 11 occupe donc la place de trois repères.The date display mechanism illustrated in figures 1 to 11 comprises a first date disc 1 whose circumference is truncated over a sector of approximately 60° (in the example illustrated, this sector therefore has a radius strictly less than the outer radius of the solid, non-truncated part of the rest of the disc ). This truncated sector is designated by notch 11 below. the first date disc 1 bears the marks 4 to 18 (fifteen marks designated by the reference 10) arranged on the rest of its circumference (that is to say on its solid part of 300°). In this embodiment, each marker 10 occupies an angular sector of 20° and the notch 11 therefore occupies the place of three markers.

Le mécanisme d'affichage du quantième comprend encore un second disque de quantième 2 dont la circonférence est tronquée sur un secteur d'environ 60°, désigné par encoche 21 dans la suite (dans l'exemple illustré, ce secteur présente donc un rayon strictement inférieur au rayon extérieur de la partie pleine, non tronquée, du reste du disque). Le second disque de quantième 2 porte les repères 19 à 31, 1, 2 et 3 (seize repères désignés par la référence 20) agencés sur le reste de sa circonférence (c'est-à-dire sur sa partie pleine de 300°). Dans cette forme d'exécution, chaque repère 20 occupe un secteur angulaire de 18,75° et l'encoche 21 occupe donc la place de trois repères (3,2 repères selon la division stricte).The date display mechanism further comprises a second date disc 2 whose circumference is truncated over a sector of approximately 60°, designated by notch 21 below (in the example illustrated, this sector therefore has a radius strictly less than the outer radius of the solid, non-truncated part of the rest of the disc). The second date disc 2 bears the marks 19 to 31, 1, 2 and 3 (sixteen marks designated by the reference 20) arranged on the rest of its circumference (that is to say on its solid part of 300°) . In this embodiment, each marker 20 occupies an angular sector of 18.75° and the notch 21 therefore occupies the place of three markers (3.2 markers according to the strict division).

Selon l'invention, les premier et second disques de quantième 1 et 2 sont agencés pour être coplanaires et pour coopérer avec un guichet unique 3 disposé sur la ligne des centres des premier et second disques de quantième 1, 2.According to the invention, the first and second date discs 1 and 2 are arranged to be coplanar and to cooperate with a one-stop window 3 arranged on the center line of the first and second date discs 1, 2.

De plus, les premier et second disques de quantième 1 et 2 sont agencés de sorte que la distance entre leur centre est strictement inférieure à la somme des rayons de leur partie pleine (partie de plus grand rayon). Il devrait donc y avoir chevauchement mais les encoches 11, 21 sont choisies et les disques sont agencés l'un par rapport à l'autre pour qu'ils puissent pivoter, le premier dans un sens, le second dans le sens opposé, sans se bloquer bien qu'étant coplanaires.Moreover, the first and second date discs 1 and 2 are arranged so that the distance between their center is strictly less than the sum of the radii of their solid part (part of larger radius). There should therefore be overlap but the notches 11, 21 are chosen and the discs are arranged relative to each other so that they can pivot, the first in one direction, the second in the opposite direction, without block although being coplanar.

Dans la forme d'exécution illustrée, les premier et second disques de quantième 1, 2 présentent une forme et une taille similaire : c'est-à-dire que leur partie pleine ont le même rayon extérieur tandis que les encoches 11, 12 sont des secteurs tronqués de taille et de forme quasi identiques.In the illustrated embodiment, the first and second date discs 1, 2 have a similar shape and size: that is to say that their solid part have the same outer radius while the notches 11, 12 are truncated sectors of almost identical size and shape.

Le premier disque de quantième 1 est solidaire d'un premier pignon 5 comprenant dix-huit dents dans la forme d'exécution illustrée. Un premier sautoir 7 est agencé pour assurer le positionnement angulaire du premier pignon 5.The first date disc 1 is integral with a first pinion 5 comprising eighteen teeth in the illustrated embodiment. A first jumper 7 is arranged to ensure the angular positioning of the first pinion 5.

Le second disque de quantième 2 est solidaire d'un second pignon 6 comprenant dix-neuf dents dans la forme d'exécution illustrée. Un second sautoir 8 est agencé pour assurer le positionnement angulaire du second pignon 6.The second date disc 2 is integral with a second pinion 6 comprising nineteen teeth in the illustrated embodiment. A second jumper 8 is arranged to ensure the angular positioning of the second pinion 6.

Les premier et second pignons de quantième 5, 6 sont entraînés par un mobile entraîneur 9 relié cinématiquement au rouage de finissage du mouvement de la pièce d'horlogerie pour son entraînement à la vitesse d'un pas par jour (aux environs de minuit).The first and second date pinions 5, 6 are driven by a driving wheel set 9 kinematically connected to the going train of the movement of the timepiece for its driving at the speed of one step per day (around midnight).

Le mobile entraîneur 9 est relié cinématiquement au premier disque de quantième 1 pour son entraînement dans un premier sens (sens antihoraire dans les figures), tandis qu'il est relié cinématiquement au second disque de quantième 2 pour son entraînement dans un second sens opposé au premier (sens horaire dans les figures).The driving wheel 9 is kinematically connected to the first date disc 1 for its drive in a first direction (counterclockwise in the figures), while it is kinematically connected to the second date disc 2 for its drive in a second direction opposite to the first (clockwise in the figures).

Dans la forme d'exécution illustrée, le mobile entraîneur 9 comprend une première roue entraîneuse 91 et une seconde roue entraîneuse 92 coaxiales, superposées et solidaires entre elles. La première roue entraîneuse 91 présente un secteur sans dent 911 et un secteur denté 912 comprenant seize dents et la seconde roue entraîneuse 92 présente un secteur sans dent 921 et un secteur denté 922 comprenant dix-sept dents (voir figure 11).In the illustrated embodiment, the driving wheel set 9 comprises a first driving wheel 91 and a second driving wheel 92 which are coaxial, superposed and integral with each other. The first driving wheel 91 has a toothless sector 911 and a toothed sector 912 comprising sixteen teeth and the second driving wheel 92 has a toothless sector 921 and a toothed sector 922 comprising seventeen teeth (see figure 11 ).

La première roue entraîneuse 91 coopère avec un renvoi intermédiaire 4 qui engrène lui-même avec le premier pignon 5. La seconde roue entraîneuse 92 coopère directement avec le second pignon 6.The first drive wheel 91 cooperates with an intermediate transmission 4 which itself meshes with the first pinion 5. The second drive wheel 92 cooperates directly with the second pinion 6.

Les première et seconde roues entraîneuses 91, 92 sont superposées mais décalées, en particulier leur secteur denté 912, 922 sont décalés de sorte que :

  • Entre le 5 et le 17 du mois, seul le premier disque de quantième 1 est entraîné d'un pas par jour aux environs de minuit via le secteur denté 912 de la première roue entraîneuse 91, le renvoi intermédiaire 4 et le premier pignon 5; durant cette phase, le secteur sans dent 921 de la seconde roue entraîneuse 92 coopère avec le second pignon 6 du second disque de quantième 2 qui reste ainsi immobile ;
  • Entre le 17 et le 20 du mois, les premier et second disques de quantième 1, 2 sont entraînés simultanément d'un pas par jour par les première et seconde roues entraîneuses 91 et 92 et leur secteur denté respectif 912, 922, les repères 17 et 18 étant affichés par le premier disque 1 tandis que les repères 19 et 20 sont affichés par le second disque 2 ;
  • Entre le 20 et le 2 du mois, seul le second disque de quantième 2 est entraîné d'un pas par jour via le secteur denté 922 de la seconde roue entraîneuse 92 et le second pignon 6; durant cette phase, le secteur sans dent 911 de la première roue entraîneuse 91 coopère avec le premier pignon 5 du premier disque de quantième 1 qui reste ainsi immobile ;
  • Entre le 2 et le 5 du mois, les premier et second disques de quantième 1, 2 sont entraînés simultanément d'un pas par jour par les première et seconde roues entraîneuses 91 et 92 et leur secteur denté respectif 912, 922, les repères 2 et 3 étant affichés par le second disque 2 tandis que les repères 4 et 5 sont affichés par le premier disque 1.
The first and second drive wheels 91, 92 are superposed but offset, in particular their toothed sector 912, 922 are offset so that:
  • Between the 5th and the 17th of the month, only the first date disc 1 is driven by one step per day around midnight via the toothed sector 912 of the first driving wheel 91, the reference intermediate 4 and the first pinion 5; during this phase, the toothless sector 921 of the second drive wheel 92 cooperates with the second pinion 6 of the second date disc 2 which thus remains stationary;
  • Between the 17th and the 20th of the month, the first and second date discs 1, 2 are driven simultaneously by one step per day by the first and second drive wheels 91 and 92 and their respective toothed sector 912, 922, the marks 17 and 18 being displayed by the first disk 1 while the markers 19 and 20 are displayed by the second disk 2;
  • Between the 20th and the 2nd of the month, only the second date disc 2 is driven by one step per day via the toothed sector 922 of the second driving wheel 92 and the second pinion 6; during this phase, the toothless sector 911 of the first drive wheel 91 cooperates with the first pinion 5 of the first date disc 1 which thus remains stationary;
  • Between the 2nd and the 5th of the month, the first and second date discs 1, 2 are driven simultaneously by one step per day by the first and second driving wheels 91 and 92 and their respective toothed sector 912, 922, the marks 2 and 3 being displayed by the second disc 2 while markers 4 and 5 are displayed by the first disc 1.

Ainsi, on remarque que lorsque le mobile entraîneur 9 fait un tour complet (31 pas), il entraîne le premier disque de quantième 1 seul durant 12 pas dans un premier sens, puis les deux disques simultanément dans des sens opposés durant 3 pas (les encoches 11, 21 occupant la place de 3 repères), ensuite le second disque de quantième 2 seul durant 13 pas dans un second sens opposé au premier et enfin les deux disques simultanément dans des sens opposés durant 3 pas.Thus, it can be seen that when the driving mobile 9 completes a full revolution (31 steps), it drives the first date disc 1 alone for 12 steps in a first direction, then the two discs simultaneously in opposite directions for 3 steps (the notches 11, 21 occupying the place of 3 markers), then the second date disc 2 alone for 13 steps in a second direction opposite to the first and finally the two discs simultaneously in opposite directions for 3 steps.

Les figures 1 à 10 illustrent ce fonctionnement. En particulier, les figures 1 à 4 illustrent le passage du 2 au 5 du mois.The figures 1 to 10 illustrate this operation. In particular, the figures 1 to 4 illustrate the transition from the 2nd to the 5th of the month.

Dans la figure 1, le quantième affiché au travers du guichet 3 est le 2 porté par le second disque de quantième 2. L'encoche 11 du premier disque de quantième 1 est en face dudit guichet 3. Au prochain pas du mobile entraîneur 9, les premier et second disques de quantième 1, 2 sont entraînés simultanément via les secteurs dentés 912, 922 des première et seconde roues entraîneuses 91, 92 qui coopèrent respectivement avec le renvoi 4 et le second pignon 6. Le premier disque de quantième 1 pivote dans un premier sens tandis que le second disque 2 pivote dans un second sens opposé au premier. Le quantième affiché au travers du guichet 3 passe au 3 porté par le second disque de quantième 2, tandis que le premier disque de quantième 1 a également fait un pas mais son encoche 11 est toujours en face du guichet 3 (figure 2).In the figure 1 , the date displayed through the window 3 is the 2 carried by the second date disc 2. The notch 11 of the first date disc 1 is opposite the said window 3. At the next step of the mobile trainer 9, the first and second date discs 1, 2 are driven simultaneously via the toothed sectors 912, 922 of the first and second drive wheels 91, 92 which cooperate respectively with the transmission 4 and the second pinion 6. The first date disc 1 pivots in a first direction while that the second disc 2 pivots in a second direction opposite to the first. The date displayed through window 3 passes to 3 carried by the second date disc 2, while the first date disc 1 has also taken a step but its notch 11 is still opposite window 3 ( figure 2 ).

Au pas suivant du mobile entraîneur 9, le second disque de quantième 2 pivote dans le second sens dans une position dans laquelle son encoche 21 est maintenant en face du guichet 3, tandis que le premier disque de quantième 1 pivote d'un pas dans le premier sens dans une position dans laquelle le repère 4 de ce premier disque 1 est affiché au travers du guichet 3 (figure 3).At the next step of the driving wheel set 9, the second date disc 2 pivots in the second direction into a position in which its notch 21 is now opposite the window 3, while the first date disc 1 pivots by one step in the first direction in a position in which the mark 4 of this first disc 1 is displayed through the window 3 ( picture 3 ).

Au pas suivant du mobile entraîneur 9, le second disque de quantième 2 pivote dans le second sens dans une position dans laquelle son encoche 21 est toujours en face du guichet 3, tandis que le premier disque de quantième 1 pivote dans le premier sens d'un pas dans une position dans laquelle le repère 5 est maintenant affiché au travers du guichet 3 (figure 4). Dans cette position, le secteur sans dent 921 de la seconde roue entraîneuse 92 coopère à présent avec le second pignon 6.At the next step of the driving wheel set 9, the second date disc 2 pivots in the second direction into a position in which its notch 21 is still opposite the aperture 3, while the first date disc 1 pivots in the first direction a step in a position in which marker 5 is now displayed through window 3 ( figure 4 ). In this position, the toothless sector 921 of the second drive wheel 92 now cooperates with the second pinion 6.

Durant les pas suivants du mobile entraîneur 9, le second disque de quantième 2 reste immobile, tandis que le premier disque 1 pivote dans le premier sens, toujours entraîné par le secteur denté 912 de la première roue entraîneuse 92, assurant le passage du 5 au 17 (en passant notamment par le 13 tel qu'illustré à la figure 5).During the following steps of the driving wheel set 9, the second date disc 2 remains stationary, while the first disc 1 pivots in the first direction, still driven by the toothed sector 912 of the first drive wheel 92, ensuring the passage from 5 to 17 (passing in particular through 13 as illustrated in figure 5 ).

Ainsi, le second disque de quantième 2 va rester immobile pendant les pas successifs du mobile entraîneur 9 (figures 5 et 6) jusqu'à ce que le secteur denté 922 de la seconde roue entraîneuse 92 vienne à nouveau coopérer avec le second pignon 6. A ce moment-là, le quantième affiché au travers du guichet 3 est le 17 porté par le premier disque de quantième 1 (figure 6).Thus, the second date disc 2 will remain stationary during the successive steps of the driving wheel set 9 ( figure 5 and 6 ) until the toothed sector 922 of the second drive wheel 92 again cooperates with the second pinion 6. At this time, the date displayed through the aperture 3 is the 17 carried by the first date disc 1 ( figure 6 ).

Au prochain pas du mobile entraîneur 9, les premier et second disques de quantième 1, 2 sont entraînés simultanément dans leur sens de rotation respectif : le quantième affiché au travers du guichet 3 passe au 18 porté par le premier disque de quantième 1, tandis que le second disque de quantième 2 a également fait un pas mais son encoche 21 est toujours en face du guichet 3 (figure 7).At the next step of the driving mobile 9, the first and second date discs 1, 2 are driven simultaneously in their respective direction of rotation: the date displayed through the window 3 changes to 18 carried by the first date disc 1, while the second date disc 2 has also taken a step but its notch 21 is still opposite the aperture 3 ( figure 7 ).

Au pas suivant du mobile entraîneur 9, le premier disque de quantième 1 pivote dans le premier sens dans une position dans laquelle son encoche 11 est maintenant en face du guichet 3, tandis que le second disque de quantième 2 pivote d'un pas dans le second sens dans une position dans laquelle le repère 19 est affiché au travers du guichet 3 (figure 8).At the next step of the driving wheel set 9, the first date disc 1 pivots in the first direction into a position in which its notch 11 is now opposite the window 3, while the second date disc 2 pivots by one step in the second direction in a position in which the mark 19 is displayed through the window 3 ( figure 8 ).

Au pas suivant du mobile entraîneur 9, le premier disque de quantième 1 pivote dans le premier sens dans une position dans laquelle son encoche 11 est toujours en face du guichet 3, tandis que le second disque de quantième 2 pivote d'un pas dans le second sens dans une position dans laquelle le repère 20 est maintenant affiché au travers du guichet 3 (figure 9). Dans cette position, le secteur sans dent 911 de la première roue entraîneuse 91 coopère avec le renvoi intermédiaire 4.At the next step of the driving wheel set 9, the first date disc 1 pivots in the first direction in a position in which its notch 11 is still opposite the window 3, while the second date disc 2 pivots by one step in the second direction in a position in which the mark 20 is now displayed through the window 3 ( figure 9 ). In this position, the toothless sector 911 of the first driving wheel 91 cooperates with the intermediate transmission 4.

Durant les pas suivants du mobile entraîneur 9, le premier disque 1 reste immobile, tandis que le second disque 2 pivote dans le second sens, toujours entraîné par le secteur denté 922 de la seconde roue entraîneuse 92, assurant le passage du 20 au 2 (en passant notamment par le 26 tel qu'illustré à la figure 10). De retour au 2, le cycle peut reprendre.During the following steps of the mobile drive 9, the first disc 1 remains stationary, while the second disc 2 pivots in the second direction, still driven by the toothed sector 922 of the second driving wheel 92, ensuring the change from 20 to 2 (passing in particular through 26 as illustrated in figure 10 ). Back to 2, the cycle can resume.

Dans la forme d'exécution illustrée, le mécanisme d'affichage de quantième est donc un affichage du type « grande date » offrant des repères de grande taille et donc lisibles sans moyen de grossissement, affichés dans un guichet unique, sans séparation entre les dizaines et les unités ni variation de hauteur entre les différents repères affichés que les repères soient portés par le premier ou le second disque de quantième 1, 2 offrant ainsi un affichage très lisible et esthétique. De plus, la construction du mécanisme est simple.In the illustrated embodiment, the date display mechanism is therefore a display of the “big date” type offering large markers and therefore readable without magnification means, displayed in a single window, without separation between the tens and the units or variation in height between the various marks displayed whether the marks are carried by the first or the second date disc 1, 2 thus offering a very readable and aesthetic display. In addition, the construction of the mechanism is simple.

Le mécanisme d'affichage du quantième décrit ci-dessus pourrait bien entendu comprendre un mécanisme de correction de la date, manuel ou automatique, notamment pour le passage du 30 au 1 du mois ou du 28 ou 29 au 1 du mois.The date display mechanism described above could of course include a date correction mechanism, manual or automatic, in particular for the passage from the 30th to the 1st of the month or from the 28th or 29th to the 1st of the month.

Le mécanisme d'affichage du quantième ci-dessus a été décrit à titre d'exemple uniquement et la présente invention peut s'appliquer à un grand nombre d'affichage comme l'affichage du numéro de la semaine, un affichage horaire, des phases de lune, du mois...The calendar display mechanism above has been described by way of example only and the present invention can be applied to a large number of displays such as the display of the number of the week, a time display, phases moon, month...

De manière générale, le mécanisme d'affichage pour pièce d'horlogerie selon la présente invention comprend un guichet, un premier disque d'affichage et un second disque d'affichage, les disques d'affichage étant coplanaires et portant chacun des repères. Le guichet est disposé sur la ligne des centres des premier et second disques d'affichage.In general, the display mechanism for a timepiece according to the present invention comprises an aperture, a first display disc and a second display disc, the display discs being coplanar and each bearing markers. The window is arranged on the line of the centers of the first and second display discs.

Le mécanisme d'affichage est agencé pour permettre l'entraînement en rotation des premier et second disques d'affichage dans des directions opposées et dans un même plan de manière à afficher successivement les repères du premier disque d'affichage puis les repères du second disque d'affichage au travers du guichet.The display mechanism is arranged to allow the first and second display discs to be driven in rotation in opposite directions and in the same plane so as to successively display the marks of the first display disc then the marks of the second disc display through the counter.

De préférence, les premier et second disques d'affichage présentent chacun une partie pleine caractérisée par un premier, respectivement second rayon extérieur et un évidement ou encoche. Les repères portés par chacun des disques sont répartis sur leur partie pleine.Preferably, the first and second display discs each have a solid part characterized by a first, respectively second outer radius and a recess or notch. The markers carried by each of the discs are distributed over their solid part.

Les premier et second disques sont agencés de sorte que la distance entre leur centre est strictement inférieure à la somme des premier et second rayons extérieurs.The first and second discs are arranged so that the distance between their center is strictly less than the sum of the first and second external radii.

Quant aux encoches, elles sont chacune conformées de sorte que lorsque l'encoche d'un disque est en face du guichet, elle peut contenir la partie pleine de l'autre disque pour que les premier et second disques puissent être coplanaires sans se chevaucher.As for the notches, they are each shaped so that when the notch of a disc is opposite the aperture, it can contain the solid part of the other disc so that the first and second discs can be coplanar without overlapping.

En particulier, le mécanisme d'affichage est agencé pour pouvoir entraîner les premier et second disques d'affichage selon le cycle suivant :

  1. 1. le premier disque d'affichage seul dans un premier sens, le second disque restant immobile ;
  2. 2. les deux disques simultanément, le premier disque dans le premier sens, le second disque dans un second sens opposé au premier ;
  3. 3. le second disque d'affichage seul dans le second sens, le premier disque restant immobile ;
  4. 4. les deux disques simultanément, le premier disque dans le premier sens, le second disque dans un second sens.
In particular, the display mechanism is arranged to be able to drive the first and second display discs according to the following cycle:
  1. 1. the first display disc alone in a first direction, the second disc remaining stationary;
  2. 2. the two discs simultaneously, the first disc in the first direction, the second disc in a second direction opposite to the first;
  3. 3. the second display disc alone in the second direction, the first disc remaining stationary;
  4. 4. both discs simultaneously, the first disc in the first direction, the second disc in a second direction.

Dans la forme d'exécution illustrée, les premier et second disques d'affichage 1, 2, et leur partie pleine ont essentiellement le même rayon extérieur (disques de taille similaire). De manière générale, les premier et second rayons extérieurs des parties pleines des premier et second disques peuvent être différents et seront choisis en fonction du type d'affichage ou de la position du guichet sur le cadran (à 6h, à 3h...) qui pourrait imposer d'avoir un disque plus grand que l'autre.In the illustrated embodiment, the first and second display discs 1, 2, and their solid part have essentially the same outer radius (discs of similar size). In general, the first and second outer radii of the solid parts of the first and second discs may be different and will be chosen according to the type of display or the position of the aperture on the dial (at 6 o'clock, at 3 o'clock, etc.). which could require having one disc larger than the other.

Quant à la taille et à la forme des encoches de chacun des disques, si elles sont essentiellement les mêmes dans la forme d'exécution illustrée, elles peuvent également varier selon la taille des premier et second disques. Ainsi, les encoches pourraient avoir la forme d'un plat (suivant une corde par exemple), d'un arc de cercle ou d'un « camembert », c'est-à-dire un secteur tronqué jusqu'au centre du disque. Elles pourraient en outre être différentes en forme et/ou en taille d'un disque à l'autre.As for the size and shape of the notches of each of the discs, while they are essentially the same in the illustrated embodiment, they can also vary according to the size of the first and second discs. Thus, the notches could have the shape of a dish (following a chord for example), an arc of a circle or a “pie chart”, that is to say a truncated sector down to the center of the disc. They could also be different in shape and/or in size from one disk to another.

De préférence et comme illustré aux figures, le guichet et les disques d'affichage sont agencés pour que, lorsqu'un repère est affiché dans le guichet, une portion du disque portant ledit repère s'étende sous la totalité du guichet afin d'assurer un visuel esthétique sans géométrie parasite (vide ou bord du disque qui serait visible au travers du guichet).Preferably and as illustrated in the figures, the window and the display discs are arranged so that, when a marker is displayed in the window, a portion of the disc bearing said marker extends under the entire window in order to ensure an aesthetic visual without parasitic geometry (void or edge of the disc which would be visible through the window).

De préférence encore, les repères sont agencés sur chacun des premier et second disques d'affichage de sorte que les deux cercles passant sensiblement l'un par le centre des repères du premier disque et l'autre par le centre des repères du second disque se coupent un point situé essentiellement au centre du guichet. Cela permet d'assurer le centrage des repères dans le guichet lors de leur affichage.Preferably again, the markers are arranged on each of the first and second display discs so that the two circles passing substantially one through the center of the markers of the first disc and the other through the center of the markers of the second disc intersect a point located essentially in the center of the wicket. This makes it possible to ensure the centering of the markers in the window when they are displayed.

De préférence, la taille des repères des premier et second disques d'affichage est identique même si leur nombre peut varier entre un disque et l'autre, comme illustré dans la forme d'exécution ci-dessus.Preferably, the size of the markers of the first and second display discs is identical even if their number may vary between one disc and the other, as illustrated in the embodiment above.

Claims (11)

  1. Display mechanism for a timepiece comprising a first display disc (1) and a second display disc (2) which are arranged to be coplanar and each bearing markings (10, 20) and an aperture (3), which is disposed on the line extending between the centres of the first and second display discs (1, 2), the display mechanism being arranged to drive the first and second display discs (1, 2) in rotation in opposite directions and in the same plane, characterised in that the display mechanism is arranged so as to display the markings of the first display disc (1) and then the markings of the second display disc (2) is succession through the aperture (3).
  2. Display mechanism as claimed in claim 1, characterised in that the first and second display discs (1, 2) each have a full part which is characterised by a first and second outer radius respectively and a recess or notch (11, 21), the markings (10, 20) on each of the discs (1, 2) being distributed over their full part; in that the first and second display discs (1, 2) are also arranged so that the distance between their centres is strictly less than the sum of the first and second outer radii; in that the notches (11, 21) are each shaped so that, when the notch of one disc faces the aperture (3), it can contain the full part of the other disc so that the first and second discs (1, 2) can be coplanar without overlapping.
  3. Mechanism as claimed in the preceding claim, characterised in that it is arranged to be able to drive the first and second display discs (1, 2) according to the following cycle:
    ∘ the first display disc (1) alone in a first direction, the second disc (2) remaining immobile;
    ∘ both discs (1, 2) simultaneously, the first disc (1) in the first direction, the second disc (2) in a second direction, opposite to the first;
    ∘ the second display disc (2) alone in the second direction, the first disc (1) remaining immobile;
    ∘ both discs (1, 2) simultaneously, the first disc (1) in the first direction, the second disc (2) in a second direction.
  4. Mechanism as claimed in claim 3, characterised in that the mechanism comprises a driving mobile (9) kinematically connected to the first display disc (1) in order to drive same in the first direction and to the second display disc (2) in order to drive same in the second direction, opposite to the first.
  5. Mechanism as claimed in claim 4, characterised in that the driving mobile (9) comprises a first and a second driving wheel (91, 92) which are coaxial and fixedly attached to one another; the first driving wheel (91) being kinematically connected to the first display disc (1) in order to drive same in the first direction, the second driving wheel (92) being kinematically connected to the second display disc (2) in order to drive same in the second direction, opposite to the first, the first and second driving wheels (91, 92) each comprising a toothed sector (912, 922) and a non-toothed sector (911, 921), said toothed sectors (912, 922) being superimposed but offset so that the driving mobile (9) can drive the first and second display discs (1, 2) in succession, alone or simultaneously according to said cycle.
  6. Display mechanism as claimed in any one of the preceding claims, characterised in that the first and second outer radii characterising the full parts of the first and second display discs (1, 2) are essentially equal.
  7. Display mechanism as claimed in any one of the preceding claims, characterised in that the markings (10, 20) are arranged on each of the first and second display discs (1, 2) so that the two circles passing substantially one through the centre of the markings (10) of the first disc (1) and the other through the centre of the markings (20) of the second disc (2) intersect each other at a point located essentially at the centre of the aperture (3).
  8. Display mechanism as claimed in any one of the preceding claims, characterised in that the markings (10, 20) of the first and second display discs (1, 2) are essentially the same size.
  9. Display mechanism as claimed in any one of the preceding claims, characterised in that the aperture (3) and the first and second display discs (1, 2) are arranged so that, when a marking is displayed in the aperture (3), a portion of the disc bearing said marking extends under the whole of the aperture (3).
  10. Mechanism as claimed in any one of the preceding claims, characterised in that it is a mechanism for displaying the date, the first display disc (1) bearing fifteen successive markings from among the sequence of numbers 1 to 31 and the second display disc (2) bearing sixteen successive markings from among the remaining numbers of the sequence 1 to 31.
  11. Timepiece comprising a display mechanism as claimed in any one of the preceding claims.
EP19191485.2A 2019-08-13 2019-08-13 Display device for a timepiece Active EP3779609B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP19191485.2A EP3779609B1 (en) 2019-08-13 2019-08-13 Display device for a timepiece

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19191485.2A EP3779609B1 (en) 2019-08-13 2019-08-13 Display device for a timepiece

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EP3779609A1 EP3779609A1 (en) 2021-02-17
EP3779609B1 true EP3779609B1 (en) 2022-03-16

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Publication number Priority date Publication date Assignee Title
EP3629102B1 (en) * 2018-09-26 2022-12-14 Patek Philippe SA Genève Display mechanism with single window

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH310559A (en) 1953-07-03 1955-10-31 Fontainemelon Horlogerie Calendar timepiece.
DE4127825C1 (en) 1991-08-22 1992-10-01 Jaeger-Le Coultre S.A., Le Sentier, Ch
CH688671B5 (en) 1995-05-15 1998-07-15 Ulysse Nardin S.A. D`affichage mechanism of the date.
CH690515A5 (en) 1996-03-27 2000-09-29 Patek Philippe Sa timepiece equipped with a date display.
CA2304782C (en) 1997-09-25 2007-03-27 Jack R. Little, Jr. Nondestructive testing of dielectric materials
DE60132602T2 (en) * 2001-11-30 2008-08-28 Rolex Sa Calendar mechanism for a clock
FR2847992B1 (en) * 2002-12-02 2005-02-25 Technotime Holding S A QUANTIME DISPLAY MECHANISM FOR A CLASSIFICATION PART
CH699794B1 (en) * 2008-10-24 2013-08-15 Eta Sa Mft Horlogere Suisse An aid in maintaining the position of a ring date indicator timepiece.
CH707971B8 (en) * 2013-04-29 2017-09-15 Télôs Watch SA Timepiece comprising a date display device.

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