EP1555585B1 - Calendar mechanism - Google Patents

Calendar mechanism Download PDF

Info

Publication number
EP1555585B1
EP1555585B1 EP04405031A EP04405031A EP1555585B1 EP 1555585 B1 EP1555585 B1 EP 1555585B1 EP 04405031 A EP04405031 A EP 04405031A EP 04405031 A EP04405031 A EP 04405031A EP 1555585 B1 EP1555585 B1 EP 1555585B1
Authority
EP
European Patent Office
Prior art keywords
display
teeth
wheel
movement
mobile
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
EP04405031A
Other languages
German (de)
French (fr)
Other versions
EP1555585A1 (en
Inventor
Walter Schlup
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to EP04405031A priority Critical patent/EP1555585B1/en
Priority to DE602004008207T priority patent/DE602004008207T2/en
Publication of EP1555585A1 publication Critical patent/EP1555585A1/en
Application granted granted Critical
Publication of EP1555585B1 publication Critical patent/EP1555585B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • 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

Definitions

  • the present invention relates to date mechanisms. It relates more particularly to a mechanism of the large window type, thanks to which the reading of the date is facilitated.
  • Such a mechanism is described in the document WO 98/50829 . It comprises an annular control wheel performing a turn per month and provided with first and second teeth, which drive two display mobiles respectively bearing the numbers of the units and tens.
  • the control wheel is concentrically arranged with the needles.
  • the display mobiles are arranged side by side, inside the ring formed by the control wheel, and off-center with respect to the latter.
  • the control mobile can be achieved by modifying a conventional date disc. It is thus possible to provide an existing template with a large window display, with a minimum of modifications.
  • Such a solution implies a date at noon or at 6 o'clock, in the middle part of the dial, with relatively modest dimensions of the wicket.
  • the document WO 99/13383 relates to a mechanism also comprising a control mobile performing one turn per month.
  • This mobile ensures, furthermore, the display units. It drives a mobile tens display superimposed on the disk units and provided with cutouts through which appear the numbers of units.
  • the tens control and display mobiles are off-center with respect to each other. This solution is even simpler than the previous one.
  • the display should be at 6 o'clock or noon, and the maximum dimension of the displayed figures remains modest.
  • the document CH 688 671 refers to a date mechanism Comprising display mobiles tens and units that are concentric with each other, but offset with respect to movement. Display mobiles are both driven by a gear train.
  • first and second gear trains respectively engaged with the first and second) teeth and with the wheels of the first and second display mobiles, the first gear set being disposed at a first and second gear first level, higher, and the second gear train at a second, lower level, and in that said disks are superimposed.
  • This mechanism is advantageously intended to equip a timepiece provided with a pivoting needle display in the center of the movement, the wheels of the display mobiles being disposed at the center of the movement.
  • the second gear set is arranged so that the second display mobile, displaying the tens, performs four steps per revolution.
  • This mobile display is provided with a disc bearing the indications "0" or "nothing", "1", "2" and "3".
  • the second gear set is arranged so that the second display mobile, displaying the tens, performs five steps per revolution.
  • This display mobile is provided with a disc bearing the indications "0" or "nothing", "1", “2", “3” and "31".
  • the teeth of the drive wheel are advantageously formed of pins.
  • the watch shown in FIG. 1 comprises, in a conventional manner, a box 10, a dial 12 provided with a window 14, a date display 16 and hour hands 18, minutes 20 and seconds 22.
  • the date display 16 and the hands 18, 20 and 22 are moved by a movement mounted in the housing that forms the box 10 and which will be partially described with reference Figures 2 and 3.
  • a crown setting time 24 corrects the information displayed.
  • the movement shown in plan in Figures 2a and 2b, is shown in section along the lines AA and BB respectively in Figures 3a and 3b.
  • It comprises a basic structure 26, schematically illustrated and formed of a frame carrying a power source, a time base, a gear wheel rotating in synchronism with the time base, and mechanisms, time setting controlled by the crown 24, and date causing the display 16.
  • the wheel comprises movers arranged in the center of the movement and provided with shafts 28, 30 and 32 for carrying respectively the needles18, 20 and 22.
  • the basic structure 26 carries a date module 34 which will be described in more detail below.
  • the date mechanism of the basic structure causes, in known manner, a disk in place of a control wheel 36 and making a turn in one month. It is provided with two teeth 36a and 36b formed of pins arranged perpendicularly to the plane of the disc.
  • the module 34 comprises a plate 38 mounted on the frame of the base structure 26 by means of screws not shown and extending over most of its surface.
  • the plate 38 carries two gear trains 40 (Figure 3b) and 42 ( Figure 3a), respectively engaged with the teeth 36a and 36b.
  • the plate 38 is provided, in its central part, with a barrel 38a concentric with the trees 28, 30 and 32 and surrounding them.
  • Two display mobiles 44 and 46 are pivotally mounted on the barrel 38a.
  • the mobile 44 comprises a disk 44a, which carries the numbers of the date units, and a pinion 44b engaged with the gear train 40 and on which the disk 44a is fixed.
  • the mobile 46 is pivotally mounted on the mobile 44.
  • It comprises a disk 46a, bearing the digits of the tens, and a pinion 46b meshing with the gear train 42, and on which the disk 46a is fixed.
  • the numbers of teeth of the pinions 44b and 40c are chosen so that, for a quarter turn of the pinion 40c, the pinion 44b is one tenth of a turn. In this way, at each step of the control wheel 36, and to the extent that the toothing 36a has a pin, the wheel 40a is a quarter turn and the pinion 44b a tenth of a turn, which corresponds to the passage of a number of units to the next.
  • the numbers of teeth of the pinions 46b and 42c are chosen so that, for a third turn of the pinion 42c, the pinion 44b makes a quarter turn.
  • the wheel 42a is a third of a turn and the pinion 46b a quarter turn, which corresponds to the passage of a numbers from tens to the next.
  • the wheels 40a and 42a and 40d and 42d are respectively pivotally mounted on the plate 38 by means of pins 48, 50, 52 and 54.
  • the pins of the toothing 36a are arranged in a circle on the annular disk that forms the mobile 36. They are longer than the pins of the teeth 36b, also arranged in a circle on the mobile 36, the diameter of this second circle being smaller than that of the first.
  • the wheel 40a is at a first level, upper, chosen so that its board 40b is engaged with the toothing 36a, but does not come into contact with the toothing 36b.
  • the wheel 42a is at a second, lower level, the cutouts in its board 42b being engaged with the toothing 36b.
  • control wheel 36 drives the disks 44a and 46b through the gear trains 40 and 42. It is understood that the disks must be driven in a sequence such that the tens change at each pass from 9 to 0 units and the display goes from 31 to 1 at the end of each month.
  • Figure 4 shows more precisely how this sequence is defined.
  • the disk of the tens 46a and 4b the disk of the units 44a.
  • Part 4c has a table shape with, in the first line, the date displayed with which is associated a position of the control wheel 36, in the second line the displayed tens, in the third line the structure of the teeth 36b, in fourth line the units displayed and in the fifth line the structure of the toothing 36a.
  • the tens disk 46a as shown in 4a, has a central portion and four arms, each of them bearing a number, namely the sequence 0, 1, 2 and 3.
  • the disc 46a must jump during the passage from 9 to 10, 19 to 20, 29 to 30 and 31 to 1, under the action of the teeth of the toothing 36b shown in the third row of Table 4c.
  • the toothing 36b comprises four pins arranged so as to drive the disk 46a at each change of ten.
  • the disk units 44a shown in 4b must jump every day except when going from 31 to 1. This is why, as can be seen in the fifth line of Table 4c, the toothing has thirty pins and a space between the pins respectively ensuring the passage of 30 to 31 and 1 to 2.
  • FIG. 5 represents, according to the same structure as that of FIG. 4, a display variant in which the disk of the tens 46a comprises five indications, namely 0, 1, 2, 3 and 31.
  • the toothing 36b comprises five pins respectively providing the jump of the disc 46a during the passage from 9 to 10, from 19 to 20, from 29 to 30, from 30 to 31 and from 31 to 1.
  • the disk units 44a it can be driven during the passage from 30 to 31. It can also be driven during the passage from 31 to the first, as shown in this figure.
  • pinions 44b and 46b are advantageously positioned by means of jumpers cooperating with their toothing. These are not shown, however, to avoid overloading the drawing.
  • control wheel 36 and the display mobiles 40 and 42 are concentric with each other and with the shafts carrying the hour, minute and second hands. It is also possible to realize a mechanism in which the control wheel is off-center with respect to the movement.
  • the display mobiles are, here too, arranged concentrically to the control mobile. In this case, the display is smaller, but still interesting. These mobiles can be concentric to a shaft carrying a complementary display needle, indicating, for example, the second.
  • control mobile and display mobiles are concentric, it is possible to achieve a large date display, by simple means.

Landscapes

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

Description

La présente invention se rapporte aux mécanismes de quantième. Elle concerne plus particulièrement un mécanisme du type à grand guichet, grâce auquel la lecture de la date est facilitée.The present invention relates to date mechanisms. It relates more particularly to a mechanism of the large window type, thanks to which the reading of the date is facilitated.

Un tel mécanisme est décrit dans le document WO 98/50829 . Il comporte un mobile de commande annulaire effectuant un tour par mois et muni de première et deuxième dentures, lesquelles entraînent deux mobiles d'affichage portant respectivement les chiffres des unités et des dizaines. Le mobile de commande est disposé concentriquement aux aiguilles. Les mobiles d'affichage sont disposés côte à côte, à l'intérieur de l'anneau que forme le mobile de commande, et décentrés par rapport à ce dernier. Le mobile de commande peut être réalisé en modifiant un disque de quantième classique. Il est, de la sorte, possible de munir un calibre existant d'un affichage à grand guichet, avec un minimum de modifications. Une telle solution implique une date à midi ou à 6 heures, dans la partie médiane du cadran, avec des dimensions du guichet relativement modestes.Such a mechanism is described in the document WO 98/50829 . It comprises an annular control wheel performing a turn per month and provided with first and second teeth, which drive two display mobiles respectively bearing the numbers of the units and tens. The control wheel is concentrically arranged with the needles. The display mobiles are arranged side by side, inside the ring formed by the control wheel, and off-center with respect to the latter. The control mobile can be achieved by modifying a conventional date disc. It is thus possible to provide an existing template with a large window display, with a minimum of modifications. Such a solution implies a date at noon or at 6 o'clock, in the middle part of the dial, with relatively modest dimensions of the wicket.

Le document WO 99/13383 concerne un mécanisme comportant également un mobile de commande effectuant un tour par mois. Ce mobile assure, en outre, l'affichage des unités. Il entraîne un mobile d'affichage des dizaines superposé au disque des unités et muni de découpes au travers desquelles apparaissent les chiffres des unités. Les mobiles de commande et d'affichage des dizaines sont décentrés l'un par rapport à l'autre. Cette solution est encore plus simple que la précédente. Ici aussi, l'affichage doit se faire à 6 heures ou à midi, et la dimension maximale des chiffres affichés reste modeste.The document WO 99/13383 relates to a mechanism also comprising a control mobile performing one turn per month. This mobile ensures, furthermore, the display units. It drives a mobile tens display superimposed on the disk units and provided with cutouts through which appear the numbers of units. The tens control and display mobiles are off-center with respect to each other. This solution is even simpler than the previous one. Here too, the display should be at 6 o'clock or noon, and the maximum dimension of the displayed figures remains modest.

Une autre solution est décrite dans le document EP 0 529 191 , faisant appel à des mobiles d'affichage des unités et des dizaines qui peuvent être concentriques. Ceux-ci sont entraînés par un mobile de commande, décentré par rapport au centre du mouvement et des mobiles d'affichage, qui effectue un tour par mois. Les deux mobiles d'affichage sont munis de disques superposés dont le diamètre est sensiblement égal au rayon du mouvement.Another solution is described in the document EP 0 529 191 , using mobile display units and tens that can be concentric. These are driven by a control mobile, off center to the center of the movement and display mobiles, which performs one turn per month. Both display mobiles have disks superimposed whose diameter is substantially equal to the radius of the movement.

Cette solution permet d'avoir un affichage de très grande dimension, mais implique une construction spécifique. Ses organes constitutifs sont décalés par rapport au centre du mouvement.This solution makes it possible to have a very large display, but implies a specific construction. Its constituent organs are offset from the center of the movement.

Le document US 2002/0080687 décrit un mécanisme de quantième dans lequel le mobile de commande (qui effectue un tour par mois), le mobile d'affichage des unités et le mobile d'affichage des dizaines sont concentriques les uns aux autres, ainsi qu'au mouvement en lui-même. Dans ce mécanisme, l'indicateur des unités est commandé par un levier. Une telle solution est gourmande en énergie.The document US 2002/0080687 describes a date mechanism in which the control mobile (which performs one turn per month), the unit display mobile and the tens display mobile are concentric to each other, as well as to the movement in itself. even. In this mechanism, the units indicator is controlled by a lever. Such a solution is greedy energy.

Par ailleurs, le document CH 688 671 se rapporte à un mécanisme de quantième Comprenant des mobiles d'affichage des dizaines et des unités qui sont concentriques l'un par rapport à l'autre, mais décalés par rapport au mouvement. Les mobiles d'affichage sont tous les deux entraînés par un train d'engrenage.In addition, the document CH 688 671 refers to a date mechanism Comprising display mobiles tens and units that are concentric with each other, but offset with respect to movement. Display mobiles are both driven by a gear train.

Le but de la présente invention est de pallier ces inconvénients. Selon l'invention, le mécanisme de quantième comporte :

  • un mobile de commande disposé à la périphérie du mouvement, effectuant un tour par mois et muni de première et deuxième dentures,
  • un premier mobile d'affichage muni d'une roue et d'un disque portant les chiffres des unités du quantième,
  • un deuxième mobile d'affichage munie d'une roue et d'un disque portant les chiffres des dizaines du quantième,
lesdits mobiles étant concentriques les uns aux autres.The object of the present invention is to overcome these disadvantages. According to the invention, the date mechanism comprises:
  • a control wheel arranged at the periphery of the movement, making one turn per month and provided with first and second teeth,
  • a first display mobile provided with a wheel and a disk bearing the numbers of the date units,
  • a second display mobile provided with a wheel and a disc bearing the numbers of the tens of the date,
said mobiles being concentric with each other.

Il est caractérisé en ce qu'il comporte des premier et deuxième trains d'engrenages respectivement en prise avec les première et deuxième) dentures et avec les roues des premier et deuxième mobiles d'affichage, le premier train d'engrenages étant disposé à un premier niveau, supérieur, et le deuxième train d'engrenages à un deuxième niveau, inférieur, et en ce que lesdits disques sont superposés.It is characterized in that it comprises first and second gear trains respectively engaged with the first and second) teeth and with the wheels of the first and second display mobiles, the first gear set being disposed at a first and second gear first level, higher, and the second gear train at a second, lower level, and in that said disks are superimposed.

Ce mécanisme est avantageusement destiné à équiper une pièce d'horlogerie munie d'un affichage par aiguilles pivotant au centre du mouvement, les roues des mobiles d'affichage étant disposées au centre du mouvement.This mechanism is advantageously intended to equip a timepiece provided with a pivoting needle display in the center of the movement, the wheels of the display mobiles being disposed at the center of the movement.

Dans un premier mode de réalisation, le deuxième train d'engrenages est agencé de manière à ce que le deuxième mobile d'affichage, affichant les dizaines, effectue quatre pas par tour. Ce mobile d'affichage est muni d'un disque portant les indications « 0 » ou « rien », « 1 », « 2 » et « 3 ».In a first embodiment, the second gear set is arranged so that the second display mobile, displaying the tens, performs four steps per revolution. This mobile display is provided with a disc bearing the indications "0" or "nothing", "1", "2" and "3".

Dans un deuxième mode de réalisation, le deuxième train d'engrenages est agencé de manière à ce que le deuxième mobile d'affichage, affichant les dizaines, effectue cinq pas par tour. Ce mobile d'affichage est muni d'un disque portant les indications « 0 » ou « rien », « 1 », « 2 », « 3 » et « 31 ».In a second embodiment, the second gear set is arranged so that the second display mobile, displaying the tens, performs five steps per revolution. This display mobile is provided with a disc bearing the indications "0" or "nothing", "1", "2", "3" and "31".

Les dentures du mobile d'entraînement sont avantageusement formées de goupilles.The teeth of the drive wheel are advantageously formed of pins.

D'autres avantages et caractéristiques de l'invention ressortiront de la description qui va suivre, faite en regard du dessin annexé, dans lequel:

  • La figure 1 représente une montre munie d'un mécanisme selon l'invention ;
  • Les figures 2a et 2b sont des vues de dessus d'un mécanisme selon l'invention, certaines parties étant arrachées sur la figure 2b pour voir le mécanisme disposé en dessous des moyens d'affichage ;
  • Les figures 3a et 3b montrent, respectivement vu en coupe selon les lignes AA et BB, le mouvement de la figure 2 ; et
  • Les figures 4 et 5 montrent, pour deux modes de réalisation, la structure des moyens de commande de l'affichage des dates.
Other advantages and features of the invention will emerge from the description which follows, given with reference to the appended drawing, in which:
  • FIG. 1 represents a watch provided with a mechanism according to the invention;
  • Figures 2a and 2b are top views of a mechanism according to the invention, some parts being torn off in Figure 2b to see the mechanism disposed below the display means;
  • Figures 3a and 3b show, respectively seen in section along lines AA and BB, the movement of Figure 2; and
  • Figures 4 and 5 show, for two embodiments, the structure of the control means of the display of dates.

La montre représentée sur la figure 1 comporte, de manière classique, une boîte 10, un cadran 12 muni d'un guichet 14, un affichage de la date 16 et des aiguilles des heures 18, des minutes 20 et des secondes 22. L'affichage de la date 16 ainsi que les aiguilles 18, 20 et 22 sont mus par un mouvement monté dans le logement que forme la boîte 10 et qui sera partiellement décrit en référence aux figures 2 et 3. Une couronne de mise à l'heure 24 permet de corriger les informations affichées.The watch shown in FIG. 1 comprises, in a conventional manner, a box 10, a dial 12 provided with a window 14, a date display 16 and hour hands 18, minutes 20 and seconds 22. The date display 16 and the hands 18, 20 and 22 are moved by a movement mounted in the housing that forms the box 10 and which will be partially described with reference Figures 2 and 3. A crown setting time 24 corrects the information displayed.

Le mouvement, représenté en plan aux figures 2a et 2b, est montré en coupe respectivement selon les lignes AA et BB sur les figures 3a et 3b. Il comprend une structure de base 26, schématiquement illustrée et formée d'un bâti portant une source d'énergie, une base de temps, un rouage tournant en synchronisme avec la base de temps, et des mécanismes, de mise à l'heure commandé par la couronne 24, et de quantième entraînant l'affichage 16. Le rouage comporte des mobiles disposés au centre du mouvement et munis d'arbres 28, 30 et 32 destinés à porter respectivement les aiguilles18, 20 et 22. La structure de base 26 porte un module 34 de quantième qui sera décrit de manière plus détaillée ci-après.The movement, shown in plan in Figures 2a and 2b, is shown in section along the lines AA and BB respectively in Figures 3a and 3b. It comprises a basic structure 26, schematically illustrated and formed of a frame carrying a power source, a time base, a gear wheel rotating in synchronism with the time base, and mechanisms, time setting controlled by the crown 24, and date causing the display 16. The wheel comprises movers arranged in the center of the movement and provided with shafts 28, 30 and 32 for carrying respectively the needles18, 20 and 22. The basic structure 26 carries a date module 34 which will be described in more detail below.

Le mécanisme de quantième de la structure de base entraîne, de manière connue, un disque tenant lieu de mobile de commande 36 et faisant un tour en un mois. Il est muni de deux dentures 36a et 36b formées de goupilles disposées perpendiculairement au plan du disque.The date mechanism of the basic structure causes, in known manner, a disk in place of a control wheel 36 and making a turn in one month. It is provided with two teeth 36a and 36b formed of pins arranged perpendicularly to the plane of the disc.

Le module 34 comprend une plaque 38 montée sur le bâti de la structure de base 26 au moyen de vis non représentées et s'étendant sur l'essentiel de sa surface. La plaque 38 porte deux trains d'engrenages 40 (figure 3b) et 42 (figure 3a), respectivement en prise avec les dentures 36a et 36b. La plaque 38 est munie, dans sa partie centrale, d'un canon 38a concentrique aux arbres 28, 30 et 32 et les entourant.The module 34 comprises a plate 38 mounted on the frame of the base structure 26 by means of screws not shown and extending over most of its surface. The plate 38 carries two gear trains 40 (Figure 3b) and 42 (Figure 3a), respectively engaged with the teeth 36a and 36b. The plate 38 is provided, in its central part, with a barrel 38a concentric with the trees 28, 30 and 32 and surrounding them.

Deux mobiles d'affichage 44 et 46 sont montés pivotant sur le canon 38a. Le mobile 44 comporte un disque 44a, qui porte les chiffres des unités du quantième, et un pignon 44b en prise avec le train d'engrenages 40 et sur lequel est fixé le disque 44a. Le mobile 46 est monté pivotant sur le mobile 44.Two display mobiles 44 and 46 are pivotally mounted on the barrel 38a. The mobile 44 comprises a disk 44a, which carries the numbers of the date units, and a pinion 44b engaged with the gear train 40 and on which the disk 44a is fixed. The mobile 46 is pivotally mounted on the mobile 44.

Il comprend un disque 46a, portant les chiffres des dizaines, et un pignon 46b en prise avec le train d'engrenages 42, et sur lequel est fixé le disque 46a.It comprises a disk 46a, bearing the digits of the tens, and a pinion 46b meshing with the gear train 42, and on which the disk 46a is fixed.

Le train d'engrenages 40 comporte :

  • une roue 40a, comprenant une planche 40b munie de quatre découpes en prise avec la denture 36a et un pignon 40c, et
  • un renvoi 40d transmettant le mouvement du pignon 40c vers le pignon 44b du mobile 44.
The gear train 40 comprises:
  • a wheel 40a, comprising a board 40b provided with four cutouts in engagement with the toothing 36a and a pinion 40c, and
  • a reference 40d transmitting the movement of the pinion 40c to the pinion 44b of the mobile 44.

Les nombres de dents des pignons 44b et 40c sont choisis de manière à ce que, pour un quart de tour du pignon 40c, le pignon 44b fasse un dixième de tour. De la sorte, à chaque pas du mobile de commande 36, et dans la mesure où la denture 36a comporte une goupille, la roue 40a fait un quart de tour et le pignon 44b un dixième de tour, ce qui correspond au passage d'un chiffre des unités au suivant.The numbers of teeth of the pinions 44b and 40c are chosen so that, for a quarter turn of the pinion 40c, the pinion 44b is one tenth of a turn. In this way, at each step of the control wheel 36, and to the extent that the toothing 36a has a pin, the wheel 40a is a quarter turn and the pinion 44b a tenth of a turn, which corresponds to the passage of a number of units to the next.

Le train d'engrenages 42 comporte :

  • une roue 42a, comprenant une planche 42b munie de trois découpes en prise avec la denture 36b et un pignon 42c, et
  • un renvoi 42d transmettant le mouvement du pignon 42c vers le pignon 46b du mobile 46.
The gear train 42 comprises:
  • a wheel 42a, comprising a board 42b provided with three cutouts in engagement with the toothing 36b and a pinion 42c, and
  • a reference 42d transmitting the movement of the pinion 42c to the pinion 46b of the mobile 46.

Les nombres de dents des pignons 46b et 42c sont choisis de manière à ce que, pour un tiers de tour du pignon 42c, le pignon 44b fasse un quart de tour. De la sorte, à chaque pas du mobile de commande 36, et dans la mesure où la denture 36b comporte une goupille, la roue 42a fait un tiers de tour et le pignon 46b un quart de tour, ce qui correspond au passage d'un chiffre des dizaines au suivant.The numbers of teeth of the pinions 46b and 42c are chosen so that, for a third turn of the pinion 42c, the pinion 44b makes a quarter turn. In this way, at each step of the control wheel 36, and insofar as the toothing 36b comprises a pin, the wheel 42a is a third of a turn and the pinion 46b a quarter turn, which corresponds to the passage of a numbers from tens to the next.

Comme on peut le voir plus particulièrement sur les figures 3a et 3b, les roues 40a et 42a et les renvois 40d et 42d sont respectivement montés pivotants sur la plaque 38 au moyen de tenons 48, 50, 52 et 54.As can be seen more particularly in Figures 3a and 3b, the wheels 40a and 42a and 40d and 42d are respectively pivotally mounted on the plate 38 by means of pins 48, 50, 52 and 54.

Les goupilles de la denture 36a sont disposées en cercle sur le disque annulaire que forme le mobile 36. Elles sont plus longues que les goupilles de la denture 36b, également disposées en cercle sur le mobile 36, le diamètre de ce deuxième cercle étant plus petit que celui du premier. La roue 40a se trouve à un premier niveau, supérieur, choisi de manière à ce que sa planche 40b soit en prise avec la denture 36a, mais n'entre pas en contact avec la denture 36b. La roue 42a se trouve à un deuxième niveau, inférieur, les découpes que comporte sa planche 42b étant en prise avec la denture 36b.The pins of the toothing 36a are arranged in a circle on the annular disk that forms the mobile 36. They are longer than the pins of the teeth 36b, also arranged in a circle on the mobile 36, the diameter of this second circle being smaller than that of the first. The wheel 40a is at a first level, upper, chosen so that its board 40b is engaged with the toothing 36a, but does not come into contact with the toothing 36b. The wheel 42a is at a second, lower level, the cutouts in its board 42b being engaged with the toothing 36b.

Comme expliqué plus haut, le mobile de commande 36 entraîne les disques 44a et 46b par l'intermédiaire des trains d'engrenages 40 et 42. Il est bien entendu que les disques doivent être entraînés selon une séquence telle que les dizaines changent à chaque passage du 9 au 0 des unités et que l'affichage passe de 31 à 1 à la fin de chaque mois.As explained above, the control wheel 36 drives the disks 44a and 46b through the gear trains 40 and 42. It is understood that the disks must be driven in a sequence such that the tens change at each pass from 9 to 0 units and the display goes from 31 to 1 at the end of each month.

La figure 4 montre plus précisément comment est défini cette séquence. En 4a est représenté le disque des dizaines 46a et en 4b le disque des unités 44a. La partie 4c a une forme de tableau avec, en première ligne la date affichée à laquelle est associée une position du mobile de commande 36, en deuxième ligne les dizaines affichées, en troisième ligne la structure de la dentures 36b, en quatrième ligne les unités affichées et en cinquième ligne la structure de la denture 36a.Figure 4 shows more precisely how this sequence is defined. In 4a is shown the disk of the tens 46a and 4b the disk of the units 44a. Part 4c has a table shape with, in the first line, the date displayed with which is associated a position of the control wheel 36, in the second line the displayed tens, in the third line the structure of the teeth 36b, in fourth line the units displayed and in the fifth line the structure of the toothing 36a.

Le disque des dizaines 46a, tel que représenté en 4a, comporte une portion centrale et quatre bras, chacun d'eux portant un chiffre, soit la séquence 0, 1, 2 et 3. Pour que l'affichage des dates soit correct, le disque 46a doit sauter lors du passage du 9 au 10, du 19 au 20, du 29 au 30 et du 31 au 1 er, sous l'action des dents de la denture 36b représentées sur la troisième ligne du tableau 4c. A cet effet, la denture 36b comporte quatre goupilles agencées de manière à assurer l'entraînement du disque 46a lors de chaque changement de dizaine.The tens disk 46a, as shown in 4a, has a central portion and four arms, each of them bearing a number, namely the sequence 0, 1, 2 and 3. For the dates display to be correct, the disc 46a must jump during the passage from 9 to 10, 19 to 20, 29 to 30 and 31 to 1, under the action of the teeth of the toothing 36b shown in the third row of Table 4c. For this purpose, the toothing 36b comprises four pins arranged so as to drive the disk 46a at each change of ten.

Le disque des unités 44a représenté en 4b doit sauter tous les jours sauf lors du passage du 31 au 1er. C'est pourquoi, comme on peut le voir sur la 5ème ligne du tableau 4c, la denture comporte trente goupilles et un espace entre les goupilles assurant respectivement le passage du 30 au 31 et du 1er au 2.The disk units 44a shown in 4b must jump every day except when going from 31 to 1. This is why, as can be seen in the fifth line of Table 4c, the toothing has thirty pins and a space between the pins respectively ensuring the passage of 30 to 31 and 1 to 2.

En d'autres termes, à cause de cet espace, le disque des unités 44a ne saute pas lors du passage du 31 au 1 er.In other words, because of this space, the disk of the units 44a does not jump during the passage from the 31st to the 1st.

La figure 5 représente, selon une même structure que celle de la figure 4, une variante d'affichage dans laquelle le disque des dizaines 46a comporte cinq indications, soit 0, 1, 2, 3 et 31. Selon cette variante, la denture 36b comporte cinq goupilles assurant respectivement le saut du disque 46a lors du passage du 9 au 10, du 19 au 20, du 29 au 30, du 30 au 31 et du 31 au 1er. Quant au disque des unités 44a, il peut être entraîné lors du passage du 30 au 31. Il peut aussi l'être lors du passage du 31 au premier, comme représenté sur cette figure.FIG. 5 represents, according to the same structure as that of FIG. 4, a display variant in which the disk of the tens 46a comprises five indications, namely 0, 1, 2, 3 and 31. According to this variant, the toothing 36b comprises five pins respectively providing the jump of the disc 46a during the passage from 9 to 10, from 19 to 20, from 29 to 30, from 30 to 31 and from 31 to 1. As for the disk units 44a, it can be driven during the passage from 30 to 31. It can also be driven during the passage from 31 to the first, as shown in this figure.

On relèvera que les pignons 44b et 46b sont avantageusement positionnés au moyen de sautoirs coopérant avec leur denture. Ces derniers ne sont toutefois pas représentés, pour éviter de surcharger le dessin.It will be noted that the pinions 44b and 46b are advantageously positioned by means of jumpers cooperating with their toothing. These are not shown, however, to avoid overloading the drawing.

Dans le mode de réalisation décrit, le mobile de commande 36 et les mobiles d'affichage 40 et 42 sont concentriques entre eux et aux arbres portant les aiguilles des heures, des minutes et des secondes. Il est également possible de réaliser un mécanisme dans lequel le mobile de commande est décentré par rapport au mouvement. Les mobiles d'affichage sont, ici aussi, disposés concentriquement au mobile de commande. Dans ce cas, l'affichage est plus petit, mais reste intéressant. Ces mobiles peuvent être concentriques à un arbre portant une aiguille d'affichage complémentaire, indiquant, par exemple, la seconde.In the embodiment described, the control wheel 36 and the display mobiles 40 and 42 are concentric with each other and with the shafts carrying the hour, minute and second hands. It is also possible to realize a mechanism in which the control wheel is off-center with respect to the movement. The display mobiles are, here too, arranged concentrically to the control mobile. In this case, the display is smaller, but still interesting. These mobiles can be concentric to a shaft carrying a complementary display needle, indicating, for example, the second.

Dans une autre variante, il est possible de placer l'affichage à 3 heures, les chiffres étant alors orientés tangentiellement sur la périphérie des disques. Il est alors aussi possible de placer les deux disques 44a et 46a sur un même plan.In another variant, it is possible to place the display at 3 o'clock, the numbers then being oriented tangentially on the periphery of the disks. It is then also possible to place the two disks 44a and 46a on the same plane.

Ainsi, grâce au fait que le mobile de commande et les mobiles d'affichage sont concentriques, il est possible de réaliser un affichage de la date de grande dimension, par des moyens simples.Thus, thanks to the fact that the control mobile and display mobiles are concentric, it is possible to achieve a large date display, by simple means.

Claims (6)

  1. Timepiece date display mechanism comprising:
    - a drive wheel assembly (36) at the perimeter of the movement, making one revolution per month and having first teeth (36a) and second teeth (36b),
    - a first display wheel assembly (44) having a wheel (44b) and a first disc (44a) marked with the numerals of the units of the date display, and
    - a second display wheel assembly (46) having a wheel (46b) and a second disc (46a) marked with the numerals of the tens of the date display,
    said wheel assemblies (36, 44, 46) being concentric with each other,
    which mechanism is characterized in that it comprises first (40) and second (42) gear trains engaging respectively with the first teeth (36a) and second teeth (36b) and with the wheels of the first (44) and second (46) display wheel assemblies, the first gear train being positioned at a first, higher level, and the second gear train at a second, lower level, and in that said discs (44a, 46a) are superposed.
  2. Mechanism according to Claim 1, fitted to a timepiece having a display by hands (18, 20, 22) pivoting in the centre of the movement, characterized in that said wheel assemblies (36, 44, 46) are also concentric with said movement.
  3. Mechanism according to Claim 2, characterized in that the wheels (44b, 46b) of the display wheel assemblies are located in the centre of the movement.
  4. Mechanism according to Claim 1, characterized in that the second gear train is so arranged that the second display wheel assembly (46) performs four steps per revolution and has a disc (46a) marked with the indications "0" or "nothing", "1", "2" and "3".
  5. Mechanism according to Claim 1, characterized in that the second gear train is so arranged that the second display wheel assembly (46) performs five steps per revolution and has a disc (46a) marked with the indications "0" or "nothing", "1", "2", "3" and "31".
  6. Mechanism according to Claim 1, characterized in that at least one of said sets of teeth (36a, 36b) of the drive wheel assembly (36) consists of pins.
EP04405031A 2004-01-16 2004-01-16 Calendar mechanism Expired - Lifetime EP1555585B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP04405031A EP1555585B1 (en) 2004-01-16 2004-01-16 Calendar mechanism
DE602004008207T DE602004008207T2 (en) 2004-01-16 2004-01-16 calendar mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP04405031A EP1555585B1 (en) 2004-01-16 2004-01-16 Calendar mechanism

Publications (2)

Publication Number Publication Date
EP1555585A1 EP1555585A1 (en) 2005-07-20
EP1555585B1 true EP1555585B1 (en) 2007-08-15

Family

ID=34610250

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04405031A Expired - Lifetime EP1555585B1 (en) 2004-01-16 2004-01-16 Calendar mechanism

Country Status (2)

Country Link
EP (1) EP1555585B1 (en)
DE (1) DE602004008207T2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5151637B2 (en) * 2008-04-10 2013-02-27 セイコーエプソン株式会社 Clock with date display mechanism
CH705216B1 (en) 2008-05-21 2013-01-15 Zeitwinkel Ag Calendar mechanism.
CH707959B1 (en) * 2013-04-24 2017-06-15 Christophe Claret Sa Drive system of a date indicator.
CH716399A1 (en) * 2019-07-11 2021-01-15 Mft Et Fabrique De Montres Et Chronometres Ulysse Nardin Le Locle S A Mechanism for displaying a horological value, in particular the date.

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1599171A (en) * 1926-01-07 1926-09-07 George T Fyfe Calendar
CH688671B5 (en) * 1995-05-15 1998-07-15 Ulysse Nardin S.A. D`affichage mechanism of the date.
SG102647A1 (en) * 2000-12-22 2004-03-26 Ebauchesfabrik Eta Ag Timepiece provided with a date having a large aperture

Also Published As

Publication number Publication date
DE602004008207T2 (en) 2008-05-08
DE602004008207D1 (en) 2007-09-27
EP1555585A1 (en) 2005-07-20

Similar Documents

Publication Publication Date Title
EP1916575B1 (en) Annual calendar mechanism for timepiece
CH684618B5 (en) Timepiece for simultaneous display of the time for at least two time zones.
EP0940833A1 (en) Calendar mechanism for watch movement
CH676310B5 (en)
EP1609028B1 (en) Day of the month display mechanism for watch movement
EP0008832B1 (en) Clockwork with hands comprising a differential-gear mechanism
EP1536300B1 (en) Calendar mechanism for a watch comprising two superposed date annuli
EP1536299B1 (en) Calendar mechanism for a watch comprising two superposed date annuli
EP1555585B1 (en) Calendar mechanism
EP1481293A1 (en) Watch movement
EP0999482B1 (en) Annual calendar mechanism
EP1426836B1 (en) Date display mechanism for timepiece
EP3904964A1 (en) Device for displaying a time or time-derived indication and device for indexing
EP3667434B1 (en) Large date mechanism and timepiece comprising such a mechanism
WO2020065574A2 (en) Display mechanism with a single aperture
WO2005088411A1 (en) Timepiece comprising a moving analogue display
CH689601A5 (en) Day of the month mechanism for timepiece
CH702725B1 (en) Watch with calendar mechanism.
CH701836B1 (en) Displaying device for movement e.g. mechanical type movement, of timepiece to display date of month, has tenths representing display driven by tenths displaying mechanism, and units representing display driven by units displaying mechanism
EP2156250B1 (en) Device for correction of a display mechanism for a timepiece
EP1251412A1 (en) Calendar mechanism
EP1943564B1 (en) Clock piece with digital display
CH660440GA3 (en) Perpetual calendar mechanism
CH698027B1 (en) Chronograph watch.
CH717255B1 (en) Mechanical watch movement with date display.

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL LT LV MK

17P Request for examination filed

Effective date: 20060119

AKX Designation fees paid

Designated state(s): CH DE FR IT LI

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): CH DE FR IT LI

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REF Corresponds to:

Ref document number: 602004008207

Country of ref document: DE

Date of ref document: 20070927

Kind code of ref document: P

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: GLN GRESSET & LAESSER NEUCHATEL CABINET DE CONSEIL

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20080516

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20081029

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20080131

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20100127

Year of fee payment: 7

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20080131

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 602004008207

Country of ref document: DE

Effective date: 20110802

REG Reference to a national code

Ref country code: CH

Ref legal event code: PFA

Owner name: SCHLUP, WALTER, CH

Free format text: FORMER OWNER: SCHLUP, WALTER, CH

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110802

REG Reference to a national code

Ref country code: CH

Ref legal event code: PFA

Owner name: SCHLUP, WALTER, CH

Free format text: FORMER OWNER: SCHLUP, WALTER, CH

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20170720

Year of fee payment: 14

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180131

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180131