EP1546818B1 - Mechanical hour and minute display device - Google Patents

Mechanical hour and minute display device Download PDF

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Publication number
EP1546818B1
EP1546818B1 EP03798851A EP03798851A EP1546818B1 EP 1546818 B1 EP1546818 B1 EP 1546818B1 EP 03798851 A EP03798851 A EP 03798851A EP 03798851 A EP03798851 A EP 03798851A EP 1546818 B1 EP1546818 B1 EP 1546818B1
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EP
European Patent Office
Prior art keywords
display
hours
tens
wheel
units
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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
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EP03798851A
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German (de)
French (fr)
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EP1546818A2 (en
Inventor
Carlos Dias
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Manufacture Roger Dubuis SA
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Manufacture Roger Dubuis SA
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Priority to EP03798851A priority Critical patent/EP1546818B1/en
Publication of EP1546818A2 publication Critical patent/EP1546818A2/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
    • G04B19/25—Devices for setting the date indicators manually
    • 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
    • G04B19/20—Indicating by numbered bands, drums, discs, or sheets
    • G04B19/202—Indicating by numbered bands, drums, discs, or sheets by means of turning discs

Definitions

  • the present invention relates to a mechanical device for displaying hours and minutes.
  • the document FR7427878 describes a watch with three disks, the first for the minute units, the second for the tens of minutes and the third for the hours of 1 to 12.
  • the present invention specifically aims to overcome the difficulties inherent in digital display hours and minutes by mechanical means, which has the effect of doubling the number of display members compared to the traditional analog display.
  • this invention relates to a mechanical device for displaying hours and minutes as defined by claim 1.
  • the advantage of the display device object of the present invention is to allow instant digital display of hours and minutes by mechanical means.
  • the timepiece illustrated here as an example comprises several indications derived from the time, in particular the days of the week, the calendar of the month, the phase of the moon and the day and night hours. It is already stated that these other indications are only illustrated as optional, but that the present invention is not limited to their presence in association with the display of hours and minutes.
  • the hours are indicated by two concentric disks 1, 2 respectively the digits of the tens (0, 1 for a display of hours in twelve hour increments) and the ten digits of the units, that the minutes are indicated by two non-concentric discs 3, 4 respectively bearing the digits of the tens (0 to 5) and the ten-digit units.
  • Two-digit side by side of the pair of hours 1, 2 discs are aligned with two adjacent digits of the pair of minute discs 3, 4.
  • These two adjacent pairs of aligned digits of the hours 1, 2, and minute discs respectively 3, 4 appear through two rectangular windows A, respectively B, formed through the dial of the watch C (FIGS. 4 and 6) which covers the various display disks illustrated in FIG. 1, like the counters commonly used, in particular to indicate the dates of the month.
  • the drive mechanism of the minute discs 3, 4 (FIGS. 3, 4) comprises a drive wheel 5 located at the center of the movement of the watch.
  • the center of this drive wheel 5 has a square opening 5a which fits over a portion of the same section of the road (not shown) of the conventional clockwork wheel, so that the drive wheel 5 rotates at the rate of 1 turn / hour. It meshes with a mobile of minutes 6 with a ratio 2/1, so that this wheel of minutes makes two turns per hour.
  • It is integral with an instant minute jump wheel 7 which has 30 triangular teeth, each tooth constitutes an instantaneous jump cam.
  • one of the faces of each tooth has a radial orientation through relative to the center of the wheel 7, while the other is inclined and constitutes an arming ramp.
  • An intermediate rocker 8 is pivotally mounted about an axis by a fixing screw 9.
  • This rocker 8 has a toothing engaged with a toothing of a minute rocker 10 pivotally mounted about an axis by a fixing screw 11
  • This minute latch 10 carries a driving pawl 12 applied against an abutment 10a of the rocker 10 by a spring 13.
  • This driving pawl 12 is engaged with a toothing of a star gear 14 of ten teeth. triangular, integral with the disk units of minutes 4.
  • This star gear 14 is positioned by a jumper spring 15.
  • a spring 16 constantly strives to turn the intermediate rocker 8 in the opposite direction to that of the hands of the watch, thus maintaining a permanent contact between this rocker 8 and one of the teeth or cam of the instantaneous jump wheel 7. Given the link between the latches 8 and 10 by their respective toothed sectors, the minute latch 10 is moved in the clockwise direction when the intermediate latch 8 is moved in the opposite direction and vice versa.
  • the tens of minutes disk 3 is secured to a star gear 17 comprising twelve triangular teeth, positioned by a jumper spring 18.
  • This wheel 17 is off-center with respect to the star gear 14 secured to the disk of the minute units 4.
  • the relative positions of the two star gears 14, 17 are such that there is a zone in which their respective teeth are superimposed.
  • An anchor 17a is fixed, perpendicular to the plane of the star gear 17, in the center of each triangular tooth, thus forming projections.
  • the time display mechanism Figs. 5, 6) includes an instantaneous hour cam wheel 19, coaxial with the minute drive wheel, but integral with the barrel wheel (not shown). classic clockwork, so that it goes around in twelve hours and rotates clockwise.
  • This wheel 19 has twelve cams in the form of triangular teeth, one of their respective faces has a radial orientation.
  • a flip-flop 20 is pressed by a spring 21 against the cam wheel 19.
  • the other end of this rocker carries a pawl 22, pressed against a stop 20a, by a spring 23.
  • This pawl 22 is in engagement with a toothing 24a of a 24 teeth of a mobile 24 which makes a turn in 24 hours.
  • This mobile 24 comprises a second toothing of a second reference 24b of four teeth, arranged symmetrically in pairs.
  • the two references 24a, 24b are integral and coaxial with each other.
  • the teeth of the return 24a is positioned by a jumper spring 33.
  • the toothing 24a of the wheel 24 is engaged with a star gear of twelve teeth 25 integral with the disk 2 of the hour units and positioned by a jumper spring 34, while the teeth 24b are engaged with a toothed wheel.
  • star 26 of six teeth, integral with the disc 1 tens of hours and positioned by a jumper spring 35.
  • the connection between the teeth 24b and the star wheel 26 is not achieved by means of the teeth of this wheel 26 , but by pins 26a ( Figure 6) which protrude perpendicularly to the star wheel 26.
  • the angular positions of the four teeth 24b of the toothing are chosen to drive the star wheel 26 a first time during the passage of the units to that of the ten and a second time after the display of the number 12 to return to the units, this cycle being repeated a second time in 24 hours.
  • the display is done by dividing the duration of a day into two periods of 12 hours.
  • a disk 27 (FIGS. 1 and 6) which moves under a window D is fixed to a star wheel 28 (FIGS. 5 and 6) positioned by a jumper spring 29.
  • This star wheel 28 is driven every 12 hours by a finger 30a integral with a pinion 30 which makes two turns in 24 hours, driven by a wheel 31 in engagement with a wheel 32 coaxial and secured to the wheel 24.
  • the disk 27 carries indications able to distinguish one on the other, the two 12-hour periods.
  • the two periods indicated by disk 27 each have 12 hours. It does not necessarily coincide with the 12-hour periods of time-shift discs 1, 2.
  • the disk 27 distinguishes day and night, the beginning of each period can for example start at 6 o'clock in the morning and in the evening, respectively. If the disk 27 indicates the hours in the imperial way, it can carry the indications AM and PM and in this case, the periods will coincide with the two periods of 12 hours of the disks 1, 2.
  • the instant jump display mechanism that has just been described has the particularity that its various organs can not rotate in the opposite direction to that of the needles of the watch. Indeed, the presence of the cam wheels 7 and 19 whose triangular teeth each have a radially oriented side, allows rotation in one direction, since in the opposite direction, the radial flanks of the teeth block the wheel when the rocker is at the bottom of a space separating two teeth. If we could train these cogs in both directions as in other watches, we could cause great damage to the movement of the watch.
  • This mechanism comprises a conventional winding stem 36 on which is mounted a sliding pinion 37 equally conventional, which slides in a traditional manner on a portion of square section of the winding stem 36, so that this sliding pinion 37 is rotationally fast of this winding stem whatever its position along this winding stem 36.
  • This sliding pinion 37 comprises, like all conventional sliding gears, a groove in which a rocker 38 is engaged.
  • This latch 38 is controlled by a pull rod 39 pivotally mounted and a finger is engaged, in a usual manner, in a groove of the winding stem.
  • the pull tab 39 pivots and controls the pivoting of the rocker 38 which moves the sliding pinion 37 in two positions illustrated respectively by FIGS. 7 and 8.
  • reference 40 has a Breguet-type edge cutter 40a (FIG. 9) in engagement with a Breguet-type edge toothing 41a also integral with a second coaxial return 41.
  • the second return 41 is pivotally mounted on a tubular pivoting element 42 in which a coil spring 43 is housed.
  • This spring 43 urges the two sawtooth teeth 40a, 41a against each other, so that the gear 40 transmits its rotation to the gear 41 only in one direction, since in the other direction the sawtooth teeth disengage and cause the disengagement of the reference 41, which can slide axially on the tubular pivoting element 42.
  • This provision therefore allows to drive the display mechanisms of the hours and minutes in the sense, avoiding any risk of deterioration of these mechanisms.
  • the latch 38 ends with two arms forming a gripping element 38a between which is an end of a correction lever 44 which carries three references 45, 46, 47 and which is rotated coaxially with the reference 46.
  • a correction lever 44 which carries three references 45, 46, 47 and which is rotated coaxially with the reference 46.
  • the illustrated time-setting mechanism by Figure 7 the three references 45, 46, 47 are disconnected from the reference 41 and the pinion 14a integral with the starwheel 14 units of minutes.
  • the correction rocker 44 is moved and simultaneously sets the gear 45 to the gear 41 and the gear 47 to engage with it.
  • the pinion 14a of the star wheel 14 display units minutes.
  • This correction flip-flop 44 constitutes a mechanism for establishing a direct connection between the sliding pinion 37 and the star-wheel 14 for displaying minute units.
  • a reference 48 in engagement with the drive wheel 5 secured to the roadway, is also engaged in the time setting position of the winding and setting mechanism, with the reference 45a, so that that the unidirectional rotation of the return 41 is also transmitted to the gear of the hours display mechanism, as well as all other display mechanisms that can still be associated.
  • FIG. 1 shows that the timepiece described here still includes a display disc of the days of the week 49, a pointer 50 for displaying the calendar of the month, and a disc 51 for displaying the phases from the moon.
  • the drive of these display members is made from a pinion 52 ( Figures 2 and 5) integral with the hour cam wheel 19 itself secured to the barrel wheel (not shown) of the clockwork usual of all mechanical watches.
  • pinion 52 Figures 2 and 5
  • the mechanical display mechanism object of the present invention must overcome the friction of the display members, as well as the energy loss caused by the arming springs for storing sufficient energy to move the organs d display by jumps and to overcome the force of jumper springs positioning display disks. It is obvious that such a display mechanism can only work if the surface state of the friction surfaces of the various members of this mechanism makes it possible to reduce the friction as much as possible.
  • the bearing on which pivots the surface inner ring of this ring will advantageously ruby.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Measurement Of Unknown Time Intervals (AREA)
  • Materials For Medical Uses (AREA)
  • Dental Preparations (AREA)

Abstract

Two concentric disks (1,2) bear peripheral numerals which enable them to indicate twelve hours through a dial plate slot. An adjacent dial plate slot shows peripheral numbers on two non concentric disks (3,4) to give a complete numerical time display. The hour disks are driven through spring loaded rockers and the minute disks through instantaneous step cams. Further disks (27,49,51) show am/pm, day and moon position

Description

La présente invention se rapporte à un dispositif mécanique d'affichage des heures et des minutes.The present invention relates to a mechanical device for displaying hours and minutes.

Si l'on connaît l'affichage digital des heures et des minutes par cristaux liquides ou diodes électroluminescentes pour les montres à quartz, celui-ci est pratiquement inconnu dans le cas de montres mécaniques. Même si quelques tentatives ont été faites, on ne connaît en tout cas pas de dispositif d'affichage dans lequel les changements d'heures et de minutes sont toutes à saut instantané. On ne connaît pas davantage un dispositif mécanique d'affichage digital pour montre dans lequel tous les chiffres sont disposés côte à côte, permettant une lecture aisée et ont la même grandeur et une grandeur suffisante, pour une lecture sans loupe, ce qui suppose que le dispositif affiche séparément les unités et les dizaines, aussi bien des heures que des minutes.If we know the digital display hours and minutes by liquid crystal or light emitting diodes for quartz watches, it is virtually unknown in the case of mechanical watches. Even if some attempts have been made, there is in any case no display device in which the changes of hours and minutes are all instantaneous jump. A mechanical digital display device for a watch in which all the numbers are arranged side by side, which are easy to read and have the same size and magnitude, for reading without a magnifying glass, which assumes that the device displays separately units and tens, both hours and minutes.

Le document FR7427878 décrit une montre avec trois disques, le premier pour les unités des minutes, le deuxième pour les dizaines des minutes et le troisième pour les heures de 1 à 12.The document FR7427878 describes a watch with three disks, the first for the minute units, the second for the tens of minutes and the third for the hours of 1 to 12.

La présente invention a précisément pour but de surmonter les difficultés inhérentes à l'affichage digital des heures et des minutes par des moyens mécanique, ce qui a pour effet de doubler le nombre des organes d'affichage par rapport à l'affichage analogique traditionnel.The present invention specifically aims to overcome the difficulties inherent in digital display hours and minutes by mechanical means, which has the effect of doubling the number of display members compared to the traditional analog display.

A cet effet, cette invention a pour objet un dispositif mécanique d'affichage des heures et des minutes tel que défini par la revendication 1.For this purpose, this invention relates to a mechanical device for displaying hours and minutes as defined by claim 1.

L'intérêt du dispositif d'affichage objet de la présente invention est de permettre l'affichage digital instantané des heures et des minutes par des moyens mécaniques.The advantage of the display device object of the present invention is to allow instant digital display of hours and minutes by mechanical means.

Le dessin annexé illustre, schématiquement et à titre d'exemple, une forme d'exécution du dispositif d'affichage objet de la présente invention.

  • La figure 1 est une vue en plan de l'ensemble de l'affichage mécanique de la pièce d'horlogerie comprenant le dispositif d'affichage des heures et des minuties objet de l'invention;
  • la figure 2 est une vue en plan semblable à celle de la figure 1, mais sans les différents disques indicateurs permettant de voir l'ensemble des mécanismes d'affichage de cette pièce d'horlogerie;
  • la figure 3 est une vue en plan partielle de la figure 2, illustrant le mécanisme d'affichage des minutes;
  • la figure 4 est une vue en coupe selon la ligne IV-IV de la figure 3;
  • la figure 5 est une autre vue en plan partielle de la figure 2, illustrant le mécanisme d'affichage des heures et des heures diurnes et nocturnes;
  • la figure 6 est une vue en coupe selon la ligne VI-VI de la figure 5;
  • la figure 7 est une vue en plan partielle de la figure 2, illustrant le mécanisme de correction d'affichage en position débrayée;
  • la figure 8 est une vue semblable à la figure 7, illustrant le mécanisme de correction d'affichage en position embrayée;
  • la figure 9 est une vue en coupe selon la ligne IX-IX de la figure 8.
The accompanying drawing illustrates, schematically and by way of example, an embodiment of the display device object of the present invention.
  • FIG. 1 is a plan view of the entire mechanical display of the timepiece including the display device hours and minutia object of the invention;
  • Figure 2 is a plan view similar to that of Figure 1, but without the different indicator discs to see all the display mechanisms of this timepiece;
  • Fig. 3 is a partial plan view of Fig. 2, illustrating the minute display mechanism;
  • Figure 4 is a sectional view along the line IV-IV of Figure 3;
  • Fig. 5 is another fragmentary plan view of Fig. 2, illustrating the display mechanism of the hours and hours of day and night;
  • Figure 6 is a sectional view along the line VI-VI of Figure 5;
  • Figure 7 is a partial plan view of Figure 2, illustrating the display correction mechanism in the disengaged position;
  • Figure 8 is a view similar to Figure 7, illustrating the display correction mechanism in the engaged position;
  • Figure 9 is a sectional view along the line IX-IX of Figure 8.

La pièce d'horlogerie illustrée ici à titre d'exemple comporte plusieurs indications dérivées de l'heure, notamment le jours de la semaine, le quantième du mois, la phase de la lune et les heures diurnes et nocturnes. Il est d'ores et déjà précisé que ces autres indications ne sont illustrées qu'à titre facultatif, mais que la présente invention n'est pas limitée à leur présence en association avec l'affichage de l'heure et des minutes.The timepiece illustrated here as an example comprises several indications derived from the time, in particular the days of the week, the calendar of the month, the phase of the moon and the day and night hours. It is already stated that these other indications are only illustrated as optional, but that the present invention is not limited to their presence in association with the display of hours and minutes.

On peut constater sur la figure 1 que les heures sont indiquées par deux disques concentriques 1, 2 portant respectivement les chiffres des dizaines (0, 1 pour un affichage des heures par tranches de douze heures) et les dix chiffres des unités, que les minutes sont indiquées par deux disques non concentriques 3, 4 portant respectivement les chiffres des dizaines (0 à 5) et les dix chiffres des unités.It can be seen in FIG. 1 that the hours are indicated by two concentric disks 1, 2 respectively the digits of the tens (0, 1 for a display of hours in twelve hour increments) and the ten digits of the units, that the minutes are indicated by two non-concentric discs 3, 4 respectively bearing the digits of the tens (0 to 5) and the ten-digit units.

Deux chiffres côte à côté de la paire de disques des heures 1, 2 sont alignés avec deux chiffres adjacents de la paire de disques des minutes 3, 4. Ces deux paires adjacentes de chiffres alignés des disques des heures 1, 2, respectivement des minutes 3, 4 apparaissent à travers deux guichets rectangulaires A, respectivement B, ménagés à travers le cadran de la montre C (figures 4 et 6) qui recouvre les différents disques d'affichage illustrés par la figure 1, à l'instar des guichets couramment utilisés, notamment pour indiquer les quantièmes du mois. C'est ainsi que dans la position des disques 1, 2, 3, 4 de l'exemple illustré, on pourra lire à travers ces guichets A, B qu'il est 11 heures 59 minutes.Two-digit side by side of the pair of hours 1, 2 discs are aligned with two adjacent digits of the pair of minute discs 3, 4. These two adjacent pairs of aligned digits of the hours 1, 2, and minute discs respectively 3, 4 appear through two rectangular windows A, respectively B, formed through the dial of the watch C (FIGS. 4 and 6) which covers the various display disks illustrated in FIG. 1, like the counters commonly used, in particular to indicate the dates of the month. Thus, in the position of the disks 1, 2, 3, 4 of the illustrated example, it will be possible to read through these counters A, B that it is 11 hours 59 minutes.

Le mécanisme d'entraînement des disques des minutes 3, 4 (figures 3, 4) comporte une roue d'entraînement 5 située au centre du mouvement de la montre. Le centre de cette roue d'entraînement 5 présente une ouverture carrée 5a qui s'ajuste sur une partie de même section de la chaussée (non représentée) du rouage classique de minuterie, de sorte que cette roue d'entraînement 5 tourne à raison de 1 tour/heure. Elle engrène avec un mobile des minutes 6 avec un rapport 2/1, de sorte que cette roue des minutes fait deux tours par heure. Elle est solidaire d'une roue de saut instantané des minutes 7 qui comporte 30 dents triangulaires dont chaque dent constitue une came de saut instantané. A cet effet, une des faces de chaque dent a une orientation radiale par rapport au centre de la roue 7, tandis que l'autre est inclinée et constitue une rampe d'armage.The drive mechanism of the minute discs 3, 4 (FIGS. 3, 4) comprises a drive wheel 5 located at the center of the movement of the watch. The center of this drive wheel 5 has a square opening 5a which fits over a portion of the same section of the road (not shown) of the conventional clockwork wheel, so that the drive wheel 5 rotates at the rate of 1 turn / hour. It meshes with a mobile of minutes 6 with a ratio 2/1, so that this wheel of minutes makes two turns per hour. It is integral with an instant minute jump wheel 7 which has 30 triangular teeth, each tooth constitutes an instantaneous jump cam. For this purpose, one of the faces of each tooth has a radial orientation through relative to the center of the wheel 7, while the other is inclined and constitutes an arming ramp.

Une bascule intermédiaire 8 est montée pivotante autour d'un axe par une vis de fixation 9. Cette bascule 8 comporte une denture en prise avec une denture d'une bascule des minutes 10 montée pivotante autour d'un axe par une vis de fixation 11. Cette bascule de minutes 10 porte un cliquet d'entraînement 12 appliqué contre une butée 10a de la bascule 10 par un ressort 13. Ce cliquet d'entraînement 12 est en prise avec une denture d'une roue dentée en étoile 14 de dix dents triangulaires, solidaire du disque des unités de minutes 4. Cette roue dentée en étoile 14 est positionnée par un ressort sautoir 15.An intermediate rocker 8 is pivotally mounted about an axis by a fixing screw 9. This rocker 8 has a toothing engaged with a toothing of a minute rocker 10 pivotally mounted about an axis by a fixing screw 11 This minute latch 10 carries a driving pawl 12 applied against an abutment 10a of the rocker 10 by a spring 13. This driving pawl 12 is engaged with a toothing of a star gear 14 of ten teeth. triangular, integral with the disk units of minutes 4. This star gear 14 is positioned by a jumper spring 15.

Un ressort 16 tend constamment à faire tourner la bascule intermédiaire 8 dans le sens inverse de celui des aiguilles de la montre, maintenant ainsi un contact permanent entre cette bascule 8 et une des dents ou came de la roue de saut instantané 7. Etant donné la liaison entre les bascules 8 et 10 par leurs secteurs dentés respectifs, la bascule des minutes 10 est déplacée dans le sens des aiguilles de la montre lorsque la bascule intermédiaire 8 est déplacée dans le sens opposé et inversement.A spring 16 constantly strives to turn the intermediate rocker 8 in the opposite direction to that of the hands of the watch, thus maintaining a permanent contact between this rocker 8 and one of the teeth or cam of the instantaneous jump wheel 7. Given the link between the latches 8 and 10 by their respective toothed sectors, the minute latch 10 is moved in the clockwise direction when the intermediate latch 8 is moved in the opposite direction and vice versa.

Le disque des dizaines de minutes 3 est solidaire d'une roue dentée en étoile 17 comportant douze dents triangulaires, positionnée par un ressort sautoir 18. Cette roue 17 est décentrée par rapport à la roue dentée en étoile 14 solidaire du disque des unités de minutes 4. Les positions relatives des deux roues dentées en étoile 14, 17 sont telles qu'il existe une zone dans laquelle leurs dentures respectives se superposent. Une cheville 17a est fixée, perpendiculairement au plan de la roue dentée en étoile 17, au centre de chaque dent triangulaire, formant ainsi des saillies. Ces chevilles s'étendent en direction de la roue dentée en étoile 14, dont une des dix dents 14a (figure 4) est plus épaisse que le reste de cette roue 14, formant ainsi une saillie dirigée vers la roue en étoile 17, en sorte que cette dent 14a coupe la trajectoire des chevilles 17a et entraîne la roue en étoile 17 d'un pas à chaque tour de la roue en étoile 14. Comme cette roue 14 a dix dents, elle entraîne donc la roue en étoile 17 solidaire du disque de dizaines de minutes 4 d'un pas à chaque changement de dizaine. Par ailleurs, étant donné que la roue 14 est entraînée par sauts instantanés, la roue 17 est donc elle aussi entraînée par sauts instantanés. Cette roue en étoile 17 ayant douze dents, elle fera donc un tour en deux heures et le disque 4 qui lui est solidaire porte de ce fait deux séries de chiffres de 0 à 5.The tens of minutes disk 3 is secured to a star gear 17 comprising twelve triangular teeth, positioned by a jumper spring 18. This wheel 17 is off-center with respect to the star gear 14 secured to the disk of the minute units 4. The relative positions of the two star gears 14, 17 are such that there is a zone in which their respective teeth are superimposed. An anchor 17a is fixed, perpendicular to the plane of the star gear 17, in the center of each triangular tooth, thus forming projections. These pins extend towards the star gear 14, one of the ten teeth 14a (Figure 4) is thicker than the rest of the wheel 14, thus forming a projection directed towards the star wheel 17, so that the tooth 14a intersects the trajectory of the pins 17a and causes the star wheel 17 one step each turn of the star wheel 14. As this wheel 14 has ten teeth, it therefore causes the star wheel 17 secured to the disc tens of minutes 4 of a step with each change of ten. Moreover, since the wheel 14 is driven by instantaneous jumps, the wheel 17 is also driven by instantaneous jumps. Since this star wheel 17 has twelve teeth, it will thus turn in two hours and the disc 4 which is integral with it thus carries two sets of numbers from 0 to 5.

Le mécanisme d'affichage de l'heure Figures 5, 6) comporte une roue à cames de sauts instantanés des heures 19, coaxiale à la roue d'entraînement 5 des minutes, mais qui est solidaire de la roue à canon (non représentée) du rouage classique de minuterie, de sorte qu'elle fait un tour en douze heures et tourne dans le sens des aiguilles de la montre. Cette roue 19 comporte douze cames en forme de dents triangulaires, dont une de leurs faces respectives a une orientation radiale.The time display mechanism Figs. 5, 6) includes an instantaneous hour cam wheel 19, coaxial with the minute drive wheel, but integral with the barrel wheel (not shown). classic clockwork, so that it goes around in twelve hours and rotates clockwise. This wheel 19 has twelve cams in the form of triangular teeth, one of their respective faces has a radial orientation.

Une extrémité d'une bascule de sauts instantanés 20 est pressée par un ressort 21 contre la roue à cames 19. L'autre extrémité de cette bascule porte un cliquet 22, pressé contre une butée 20a, par un ressort 23. Ce cliquet 22 est en prise avec une denture d'un renvoi 24a de 24 dents d'un mobile 24 qui fait un tour en 24 heures. Ce mobile 24 comporte une seconde denture d'un second renvoi 24b de quatre dents, disposées symétriquement deux à deux. Les deux renvois 24a, 24b sont solidaires et coaxiaux l'un de l'autre. La denture du renvoi 24a est positionnée par un ressort sautoir 33.One end of a flip-flop 20 is pressed by a spring 21 against the cam wheel 19. The other end of this rocker carries a pawl 22, pressed against a stop 20a, by a spring 23. This pawl 22 is in engagement with a toothing 24a of a 24 teeth of a mobile 24 which makes a turn in 24 hours. This mobile 24 comprises a second toothing of a second reference 24b of four teeth, arranged symmetrically in pairs. The two references 24a, 24b are integral and coaxial with each other. The teeth of the return 24a is positioned by a jumper spring 33.

La denture 24a de la roue 24 est en prise avec une roue dentée en étoile de douze dents 25 solidaire du disque 2 des unités d'heure et positionnée par un ressort sautoir 34, tandis que les dents 24b sont en prise avec une roue dentée en étoile 26 de six dents, solidaire du disque 1 des dizaines d'heure et positionnée par un ressort sautoir 35. La liaison entre les dents 24b et la roue en étoile 26 n'est pas réalisée par l'intermédiaire des dents de cette roue 26, mais par des chevilles 26a (figure 6) qui font saillie perpendiculairement à cette roue en étoile 26. Les positions angulaires des quatre dents 24b de la denture sont choisies pour entraîner la roue en étoile 26 une première fois lors du passage des unités à celui de la dizaine et une seconde fois après l'affichage du chiffre 12 pour revenir aux unités, ce cycle se répétant une seconde fois en 24 heures. Bien entendu, dans l'exemple donné ici, l'affichage se fait en divisant la durée d'un jour en deux périodes de 12 heures.The toothing 24a of the wheel 24 is engaged with a star gear of twelve teeth 25 integral with the disk 2 of the hour units and positioned by a jumper spring 34, while the teeth 24b are engaged with a toothed wheel. star 26 of six teeth, integral with the disc 1 tens of hours and positioned by a jumper spring 35. The connection between the teeth 24b and the star wheel 26 is not achieved by means of the teeth of this wheel 26 , but by pins 26a (Figure 6) which protrude perpendicularly to the star wheel 26. The angular positions of the four teeth 24b of the toothing are chosen to drive the star wheel 26 a first time during the passage of the units to that of the ten and a second time after the display of the number 12 to return to the units, this cycle being repeated a second time in 24 hours. Of course, in the example given here, the display is done by dividing the duration of a day into two periods of 12 hours.

Une indication permet de donner une information destinée à distinguer les heures du jour et celles de la nuit. A cet effet, un disque 27 (figures 1 et 6) qui se déplace sous un guichet D est fixé à une roue en étoile 28 (figures 5 et 6) positionnée par un ressort sautoir 29. Cette roue en étoile 28 est entraînée chaque 12 heures par un doigt 30a solidaire d'un pignon 30 qui fait deux tours en 24 heures, entraîné par une roue 31 en prise avec une roue 32 coaxiale et solidaire de la roue 24. Le disque 27 porte des indications aptes à distinguer l'une de l'autre les deux périodes de 12 heures. Les deux périodes indiquées par le disque 27 ont chacune 12 heures. Elle ne coïncident pas nécessairement avec les périodes de 12 heures des disques 1, 2 d'affichage de l'heure. En effet, si le disque 27 distingue le jour et la nuit, le début de chaque période peut par exemple commencer à 6 heures, du matin, respectivement du soir. Si le disque 27 indique les heures à la façon anglo-saxonne, il peut porter les indications AM et PM et dans ce cas, les périodes coïncideront avec les deux périodes de 12 heures des disques 1, 2.An indication gives information to distinguish the hours of the day and those of the night. For this purpose, a disk 27 (FIGS. 1 and 6) which moves under a window D is fixed to a star wheel 28 (FIGS. 5 and 6) positioned by a jumper spring 29. This star wheel 28 is driven every 12 hours by a finger 30a integral with a pinion 30 which makes two turns in 24 hours, driven by a wheel 31 in engagement with a wheel 32 coaxial and secured to the wheel 24. The disk 27 carries indications able to distinguish one on the other, the two 12-hour periods. The two periods indicated by disk 27 each have 12 hours. It does not necessarily coincide with the 12-hour periods of time-shift discs 1, 2. Indeed, if the disk 27 distinguishes day and night, the beginning of each period can for example start at 6 o'clock in the morning and in the evening, respectively. If the disk 27 indicates the hours in the imperial way, it can carry the indications AM and PM and in this case, the periods will coincide with the two periods of 12 hours of the disks 1, 2.

Le mécanisme d'affichage à sauts instantanés qui vient d'être décrit présente la particularité que ses différents organes ne peuvent pas tourner dans le sens inverse de celui des aiguilles de la montre. En effet, la présence des roues à cames 7 et 19 dont les dents triangulaires comportent chacune un côté à orientation radiale, ne permet la rotation que dans un sens, puisque dans le sens opposé, les flancs radiaux des dents bloquent la roue lorsque la bascule est au fond d'un espace séparant deux dents. Si on pouvait entraîner ces rouages dans les deux sens comme dans les autres montres, on pourrait causer de gros dégâts au mouvement de la montre.The instant jump display mechanism that has just been described has the particularity that its various organs can not rotate in the opposite direction to that of the needles of the watch. Indeed, the presence of the cam wheels 7 and 19 whose triangular teeth each have a radially oriented side, allows rotation in one direction, since in the opposite direction, the radial flanks of the teeth block the wheel when the rocker is at the bottom of a space separating two teeth. If we could train these cogs in both directions as in other watches, we could cause great damage to the movement of the watch.

Même en résolvant ce problème du sens de rotation du rouage, si la mise à l'heure devait être effectuée à travers le mécanisme de saut instantané du mécanisme d'affichage des minutes, la mise à l'heure serait extrêmement longue à effectuer en raison de l'entraînement pas à pas de la roue dentée en étoile 14 par le mécanisme de bascules 8, 10 et de la vitesse forcément limitée à laquelle ce mécanisme peut être entraîné.Even by solving this problem of the direction of rotation of the gear, if the time setting were to be performed through the instant jump mechanism of the minute display mechanism, the time setting would be extremely long to perform because the stepwise drive of the star gear 14 by the latch mechanism 8, 10 and the necessarily limited speed at which this mechanism can be driven.

C'est la raison pour laquelle un mécanisme de mise à l'heure particulier a été réalisé afin de satisfaire les deux exigences susmentionnées. Ce mécanisme comporte une tige de remontoir classique 36 sur laquelle est monté un pignon coulant 37 tout aussi classique, qui coulisse de manière traditionnelle sur une partie de section carrée de la tige de remontoir 36, de sorte que ce pignon coulant 37 est solidaire en rotation de cette tige de remontoir quelle que soit sa position le long de cette tige de remontoir 36. Ce pignon coulant 37 comporte, comme tous les pignons coulants classiques, une gorge dans laquelle une bascule 38 est en prise. Cette bascule 38 est commandée par une tirette 39 montée pivotante et dont un doigt est en prise, de manière habituelle, dans une gorge de la tige de remontoir. Lors des déplacement axiaux de la tige de remontoir 36, la tirette 39 pivote et commande le pivotement de la bascule 38 qui déplace le pignon coulant 37 dans deux positions illustrées respectivement par les figures 7 et 8.This is why a special time-setting mechanism has been implemented to meet the two requirements mentioned above. This mechanism comprises a conventional winding stem 36 on which is mounted a sliding pinion 37 equally conventional, which slides in a traditional manner on a portion of square section of the winding stem 36, so that this sliding pinion 37 is rotationally fast of this winding stem whatever its position along this winding stem 36. This sliding pinion 37 comprises, like all conventional sliding gears, a groove in which a rocker 38 is engaged. This latch 38 is controlled by a pull rod 39 pivotally mounted and a finger is engaged, in a usual manner, in a groove of the winding stem. During axial displacement of the winding stem 36, the pull tab 39 pivots and controls the pivoting of the rocker 38 which moves the sliding pinion 37 in two positions illustrated respectively by FIGS. 7 and 8.

Lorsque le pignon coulant 37 est dans la position illustrée par la figure 8, c'est-à-dire en position de mise à l'heure, sa denture de chant est en prise avec un renvoi de mise à l'heure 40. Ce renvoi 40 présente une denture de chant de type Breguet 40a (figure 9) en prise avec une denture de chant de type Breguet 41a également, solidaire d'un second renvoi coaxial 41. Le second renvoi 41 est monté pivotant sur un élément de pivotement tubulaire 42 dans lequel un ressort à boudin 43 est logé. Ce ressort 43 presse l'une contre l'autre les deux dentures en dents de scie 40a, 41a, de sorte que le renvoi 40 ne transmet sa rotation au renvoi 41 que dans un sens, étant donné que dans l'autre sens, les dentures en dents de scie désengrènent et provoquent le débrayage du renvoi 41, celui-ci pouvant coulisser axialement sur l'élément de pivotement tubulaire 42. Cette disposition permet donc de n'entraîner les mécanismes d'affichage des heures et des minutes que dans le sens voulu, évitant ainsi tout risque de détérioration de ces mécanismes.When the sliding pinion 37 is in the position shown in FIG. 8, that is to say in the setting position, its edge toothing is engaged with a time setting back 40. reference 40 has a Breguet-type edge cutter 40a (FIG. 9) in engagement with a Breguet-type edge toothing 41a also integral with a second coaxial return 41. The second return 41 is pivotally mounted on a tubular pivoting element 42 in which a coil spring 43 is housed. This spring 43 urges the two sawtooth teeth 40a, 41a against each other, so that the gear 40 transmits its rotation to the gear 41 only in one direction, since in the other direction the sawtooth teeth disengage and cause the disengagement of the reference 41, which can slide axially on the tubular pivoting element 42. This provision therefore allows to drive the display mechanisms of the hours and minutes in the sense, avoiding any risk of deterioration of these mechanisms.

La bascule 38 se termine par deux bras formant un élément de préhension 38a entre lesquels se situe une extrémité d'une bascule de correction 44 qui porte trois renvois 45, 46, 47 et qui est pivotée coaxialement au renvoi 46. Dans la position de remontage du mécanisme de mise à l'heure illustrée par la figure 7, les trois renvois 45, 46, 47 sont déconnectés du renvoi 41 et du pignon 14a solidaire de la roue en étoile 14 des unités de minutes. Lorsque la tige de remontoir 36 déplace le mécanisme de mise à l'heure dans la position illustrée par la figure 8, la bascule de correction 44 est déplacée et met simultanément le renvoi 45 en prise avec le renvoi 41 et le renvoi 47 en prise avec le pignon 14a de la roue en étoile 14 d'affichage des unités de minutes. Cette bascule de correction 44 constitue un mécanisme pour établir une connexion directe entre le pignon coulant 37 et la roue en étoile 14 d'affichage des unités de minutes.The latch 38 ends with two arms forming a gripping element 38a between which is an end of a correction lever 44 which carries three references 45, 46, 47 and which is rotated coaxially with the reference 46. In the winding position the illustrated time-setting mechanism by Figure 7, the three references 45, 46, 47 are disconnected from the reference 41 and the pinion 14a integral with the starwheel 14 units of minutes. When the winding stem 36 moves the time setting mechanism to the position shown in FIG. 8, the correction rocker 44 is moved and simultaneously sets the gear 45 to the gear 41 and the gear 47 to engage with it. the pinion 14a of the star wheel 14 display units minutes. This correction flip-flop 44 constitutes a mechanism for establishing a direct connection between the sliding pinion 37 and the star-wheel 14 for displaying minute units.

Grâce à cette disposition, le mécanisme d'entraînement à saut instantané de la roue en étoile 14 est mis hors service, le déplacement des disques 3 et 4 étant effectué par l'intermédiaire des renvois 41, 45, 46, 47 et du pignon 14a, ce qui permet une mise à l'heure beaucoup plus rapide qu'en passant à travers le mécanismes des bascules 8 et 10.With this arrangement, the instantaneous jump drive mechanism of the star wheel 14 is put out of service, the displacement of the discs 3 and 4 being effected by means of the references 41, 45, 46, 47 and the pinion 14a. , which allows a time setting much faster than passing through the mechanisms of flip-flops 8 and 10.

Un renvoi 48, en prise avec la roue d'entraînement 5 solidaire de la chaussée, est également mis en prise en position de mise à l'heure du mécanisme de remontage et de mise à l'heure, avec le renvoi 45a, en sorte que le mouvement unidirectionnel de rotation du renvoi 41 est également transmis au rouage du mécanisme d'affichage des heures, ainsi qu'à tous les autres mécanismes d'affichage qui peuvent encore être associés.A reference 48, in engagement with the drive wheel 5 secured to the roadway, is also engaged in the time setting position of the winding and setting mechanism, with the reference 45a, so that that the unidirectional rotation of the return 41 is also transmitted to the gear of the hours display mechanism, as well as all other display mechanisms that can still be associated.

Comme on a pu le constater au cours de la description précédente, tous les changements d'affichage des minutes et des heures, ainsi que l'affichage dérivé de celui des heures, à savoir l'indication du jour et de la nuit, sont commandés par la roue à cames 7 et les bascules 8, 11, respectivement par la roue à cames 19 et la bascule associée 20.As can be seen from the previous description, all display changes of the minutes and hours, as well as the display derived from that of the hours, namely the indication of day and night, are ordered by the cam wheel 7 and the rockers 8, 11, respectively by the cam wheel 19 and the associated rocker 20.

La figure 1 montre que la pièce d'horlogerie décrite ici comporte encore un disque d'affichage des jours de la semaine 49, une aiguille 50 pour l'affichage des quantièmes du mois, ainsi qu'un disque 51 pour l'affichage des phases de la lune. L'entraînement de ces organes d'affichage est réalisé à partir d'un pignon 52 (figures 2 et 5) solidaire de la roue à cames des heures 19 elle-même solidaire de la roue à canon (non représentée) du rouage de minuterie habituel de toutes les montres à affichage mécanique. Ces mécanismes sont de type classique et ne font pas partie de la présente invention, en sorte qu'il n'est pas utile de les décrire ici, dans la mesure où ils ne sont pas nécessaire à la compréhension de la présente invention.FIG. 1 shows that the timepiece described here still includes a display disc of the days of the week 49, a pointer 50 for displaying the calendar of the month, and a disc 51 for displaying the phases from the moon. The drive of these display members is made from a pinion 52 (Figures 2 and 5) integral with the hour cam wheel 19 itself secured to the barrel wheel (not shown) of the clockwork usual of all mechanical watches. These mechanisms are of conventional type and do not form part of the present invention, so that it is not useful to describe them here, insofar as they are not necessary for the understanding of the present invention.

Il est évident que le mécanisme d'affichage mécanique objet de la présente invention doit surmonter les frottements des organes d'affichage, ainsi que la perte d'énergie provoquée par l'armage des ressorts destinés à emmagasiner une énergie suffisante pour déplacer les organes d'affichage par sauts instantanés et pour vaincre la force des ressorts sautoirs de positionnement des disques d'affichage. Il est évident qu'un tel mécanisme d'affichage ne peut fonctionner que si l'état de surface des surfaces de frottement des différents organes de ce mécanisme permet de réduire le plus possible les frottements. C'est ainsi, en particulier, que dans le cas de la roue en étoile 17, solidaire du disque des dizaines de minutes 3, qui se présente sous la forme d'un anneau (figure 4), le palier sur lequel pivote la surface circulaire interne de cet anneau sera avantageusement en rubis.It is obvious that the mechanical display mechanism object of the present invention must overcome the friction of the display members, as well as the energy loss caused by the arming springs for storing sufficient energy to move the organs d display by jumps and to overcome the force of jumper springs positioning display disks. It is obvious that such a display mechanism can only work if the surface state of the friction surfaces of the various members of this mechanism makes it possible to reduce the friction as much as possible. Thus, in particular, in the case of the star wheel 17, integral with the disk tens of minutes 3, which is in the form of a ring (Figure 4), the bearing on which pivots the surface inner ring of this ring will advantageously ruby.

Claims (5)

  1. A mechanical hour and minute display device, characterized in that it comprises four disks (1, 2, 3, 4), two (1, 2) for displaying, respectively, the tens and units of hours, two (3, 4) for displaying, respectively, the tens and units of minutes, each disk being fixedly connected to a toothed wheel linked to a positioning jumper spring, said toothed wheels (25, 14), fixedly connected to the two disks (2, 4) so as to display, respectively, the units of hours and of minutes, being linked to respective yoke mechanisms (8, 10, 20) pressed by elastic means (16, 21) against respective instantaneous-jump cam elements (7, 19), and that it further comprises, between said cam elements (7, 19) and said toothed wheels (17, 26) fixedly connected, respectively, to said tens of minutes and of hours disks (3, 1), means (14a, 17a, 24b) for connecting said last toothed wheels (17, 26) to said respective instantaneous-jump cam elements (7, 19) with each change of tens.
  2. The device as claimed in claim 1, in which the rotation axes of said toothed wheels (14, 17) fixedly connected, respectively, to said units (4) and tens (3) of minutes display disks are parallel and arranged so that two respective portions of the toothings of these toothed wheels (14, 17) lie one on top of the other, one tooth in ten of said toothed wheel (14) fixedly connected to said unit of minutes display disk having an addendum (14a) directed toward the other toothed wheel (17), whereas each tooth of the latter wheel has an addendum (17a) directed toward the other toothed wheel (14), such that, with each turn of the addendum (14a) of said units display wheel (14) this addendum (14a) advances said tens display wheel by one step.
  3. The device as claimed in one of the preceding claims, in which said toothed wheels (25, 26) fixedly connected, respectively, to said units (2) and tens of hours (1) display disks are concentric, a double-geared (24a, 24b) mobile (24) being interposed between said respective yoke mechanism (20) and said last wheels, the first gear (24a) of said mobile (24) being engaged, on the one hand, with said yoke mechanism (20) arranged so as to advance it by one step per hour and, on the other hand, with said toothed wheel (25) fixedly connected to said units of hours display disk (2), the second gear (24b) of said mobile (24) comprising teeth (24b) disposed angularly to mesh with said toothed wheel (26) fixedly connected to said tens of hours display disk with the passage of the tens and every twelve hours.
  4. The device as claimed in one of the preceding claims, comprising a time-setting mechanism, the train of which comprises means (40-43) for the unidirectional transmission of the rotation of the winding and time-setting stem (36).
  5. The device as claimed in claim 4, in which the time-setting mechanism comprises, on the one hand, means (44-47) for establishing, in the time-setting position of said winding and time-setting stem (36), a direct connection between the latter and said toothed wheel (14) fixedly connected to said disk (4) in order to display the units of minutes and, on the other hand, means (45a, 48) for establishing, in the time-setting position of said winding and time-setting stem (36), a connection between the latter and said double-geared (24a, 24b) mobile (24) interposed between said yoke mechanism (20) and said toothed wheels (25, 26) fixedly connected, respectively, to said units (2) and tens (1) of hours display disks.
EP03798851A 2002-10-01 2003-09-29 Mechanical hour and minute display device Expired - Lifetime EP1546818B1 (en)

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EP02405843 2002-10-01
EP02405843A EP1406131A1 (en) 2002-10-01 2002-10-01 Mechanical device for the display of hours and minutes
PCT/CH2003/000645 WO2004031869A2 (en) 2002-10-01 2003-09-29 Mechanical hour and minute display device
EP03798851A EP1546818B1 (en) 2002-10-01 2003-09-29 Mechanical hour and minute display device

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EP (2) EP1406131A1 (en)
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CN2067419U (en) * 1990-05-05 1990-12-12 温州钟表厂 Rotary disc indication type mechanical alarm clock
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JP3487273B2 (en) * 1999-08-27 2004-01-13 セイコーエプソン株式会社 Electronic clock

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US20050152225A1 (en) 2005-07-14
AU2003264222A8 (en) 2004-04-23
EP1546818A2 (en) 2005-06-29
DE60306790D1 (en) 2006-08-24
CN100389367C (en) 2008-05-21
US7075860B2 (en) 2006-07-11
EP1406131A1 (en) 2004-04-07
CN1685292A (en) 2005-10-19
WO2004031869A2 (en) 2004-04-15
HK1074082A1 (en) 2005-10-28
WO2004031869A3 (en) 2004-08-05
JP4594094B2 (en) 2010-12-08
ATE333115T1 (en) 2006-08-15
AU2003264222A1 (en) 2004-04-23
JP2006501451A (en) 2006-01-12

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