EP1462875A2 - Retrograde display mechanism for timepiece - Google Patents

Retrograde display mechanism for timepiece Download PDF

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Publication number
EP1462875A2
EP1462875A2 EP04006463A EP04006463A EP1462875A2 EP 1462875 A2 EP1462875 A2 EP 1462875A2 EP 04006463 A EP04006463 A EP 04006463A EP 04006463 A EP04006463 A EP 04006463A EP 1462875 A2 EP1462875 A2 EP 1462875A2
Authority
EP
European Patent Office
Prior art keywords
star
retrograde
spring
needle
probe
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.)
Withdrawn
Application number
EP04006463A
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German (de)
French (fr)
Other versions
EP1462875A3 (en
Inventor
Franck Müller
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.)
Franck Mueller Watchland SA
Original Assignee
Franck Mueller Watchland SA
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 Franck Mueller Watchland SA filed Critical Franck Mueller Watchland SA
Publication of EP1462875A2 publication Critical patent/EP1462875A2/en
Publication of EP1462875A3 publication Critical patent/EP1462875A3/en
Withdrawn legal-status Critical Current

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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
    • G04B19/06—Dials
    • G04B19/08—Geometrical arrangement of the graduations
    • G04B19/082—Geometrical arrangement of the graduations varying from the normal closed scale
    • 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
    • G04B19/02—Back-gearing arrangements between gear train and hands

Definitions

  • the subject of the invention is a downshifting display mechanism.
  • rake driven by sprockets with teeth truncated.
  • These rake mechanisms include a rake rotating on an axis, a display needle being integral with the rake.
  • the rake is a piece relatively large, so these mechanisms occupy an important place in a timepiece.
  • the cam revolves around a axis, and is integral with a needle. The cam is based on the data we want display, and present at the end of the race a part right which will allow the probe to return to its initial position under the action of a spring.
  • the object of the present invention is to achieve a retrograde display mechanism, which take up little space, while being safe operation.
  • the display mechanism downshifts according to the invention is characterized in that it comprises a star secured to a toothed drive wheel, a succession of points constituting the star, each having a flank against which a feeler attached to a needle is supported by the action of a spring, the sides being adapted and dimensioned in function of the data to be displayed.
  • the probe, the needle and the spring are mounted on a barrel turning on an axis.
  • the mechanism includes a stop which blocks the barrel's return rotation, after the probe has finished its race on the side of the point of the star, and falls on the next flank for a new cycle.
  • the sides of the points of the star can be trained and sized to achieve a linear display.
  • the drive of the retrograde mechanism is made via wheels R1 and R2.
  • the retrograde star 1 is integral with the wheel R2 and has several identical spikes regularly distributed around its periphery.
  • the beak of the retrograde probe 3 is continuously in contact with a tip of the retrograde star 1 resting on the side B of said point. Indeed, the spiral spring 2 maintains this permanent contact.
  • On the cup of axis A (figure 2), we can see the detail of the mechanism.
  • the spiral spring 2 is integral with the canon 7.
  • the retrograde probe 3 and the needle 6 are driven out on this same barrel 7. It is free on axis A.
  • Pin 4 is used to hold the spiral spring 2.
  • the mobile retrograde R2 rotates clockwise, causing the spout of the retrograde probe 3 via the flank B.
  • the beak reaches the end of its travel ( Figure 3)
  • it releases the probe which falls on the next flank C. And so on on the side C to the next. Therefore the needle is in continuous movement.
  • the pin 5 acts as a stop during the jump, and prevents the beak of the retrograde probe 3 does not come to the bottom in profile of the retrograde star 1.
  • flanks B, C, of the points of the star of retrograde 1 are judiciously adapted so that retrograde needle 6 moves linearly on a dial not shown.
  • the spring hairspring 2, retrograde feeler 3, and needle 6 are driven out of barrel 7, and are by therefore fixed in their respective positions on said canon 7.
  • Spiral spring 2 is under tension and fixed to the frame of the mechanism using the pin 4.
  • the needle 6 is at the start of its race against stop 5 and the retrograde probe 3 also at the start of its stroke in contact with the flank B of a point of the retrograde star 1.
  • the star 1 attached to the wheel R2 is driven according to the arrow (see Figures 1 and 3) by the mobile R1, and leads to its turn probe 3, which, as and the advance of the wheel R1, moves along the sidewall B of the point of the star 1.
  • the needle 6 which is in a fixed position relative to the probe, is driven by said probe 3 against the action of spring 2, and indicates the values displayed on the dial not shown.
  • the spring 2 brings back the probe 3 and the needle 6 in their starting position in abutment against the stop 5, and the cycle can start again on the flank C of star 1.
  • the mechanism which has just been described in see Figures 1 to 4, can be adapted for indicate any data usually displayed by a timepiece, including seconds, minutes, hours, dates, days, phases of the moon, etc ... for this to adequately size the mobile R1 and R2, and adapt the tips of the star 1 with the values you want to display.
  • the device described offers the advantage of being simple and to propose a display always in movement. Indeed, as soon as the probe passes a tip of the star, the next cycle starts and the display continues without interruption.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Measurement Of Unknown Time Intervals (AREA)
  • A Measuring Device Byusing Mechanical Method (AREA)
  • Electromechanical Clocks (AREA)
  • Toys (AREA)
  • Measuring Leads Or Probes (AREA)

Abstract

The mechanism has a star wheel (1) with succession of points having flanks (B, C) against which a feeler integrated to a needle support itself under action of a spring (2). The flanks are dimensioned according to data to be displayed. An abutment stops backward rotation of hour wheel under action of the spring, after that the feeler terminates its action on the flank (B) and fall again on a next flank for a new cycle.

Description

L'invention a pour objet un mécanisme d'affichage rétrogradant.The subject of the invention is a downshifting display mechanism.

On connaít des affichages rétrogradant dits à râteau, entraínés par des pignons à denture tronquée. Ces mécanismes à râteau comprennent un râteau tournant sur un axe, une aiguille d'affichage étant solidaire du râteau. Le râteau est une pièce de relativement grande dimension, de sorte que ces mécanismes occupent une place importante dans une pièce d'horlogerie. On connaít également un grand nombre de mécanismes constitués d'un palpeur en contact avec une came. La came tourne autour d'un axe, et est solidaire d'une aiguille. La came est réalisée en fonction des données que l'on veut afficher, et présente en fin de course une partie droite qui permettra au palpeur de revenir à sa position initiale sous l'action d'un ressort.We know downshifting displays so-called rake, driven by sprockets with teeth truncated. These rake mechanisms include a rake rotating on an axis, a display needle being integral with the rake. The rake is a piece relatively large, so these mechanisms occupy an important place in a timepiece. We also know a great number of mechanisms consisting of a probe in contact with a cam. The cam revolves around a axis, and is integral with a needle. The cam is based on the data we want display, and present at the end of the race a part right which will allow the probe to return to its initial position under the action of a spring.

Le but de la présente invention, est de réaliser un mécanisme d'affichage rétrogradant, qui prenne peu de place, tout en étant d'un fonctionnement sûr.The object of the present invention is to achieve a retrograde display mechanism, which take up little space, while being safe operation.

Le mécanisme d'affichage rétrogradant selon l'invention est caractérisé en ce qu'il comprend une étoile solidaire d'une roue d'entraínement dentée, une succession de pointes constituant l'étoile, présentant chacune un flanc contre lequel un palpeur solidaire d'une aiguille s'appuie sous l'action d'un ressort, les flancs étant adaptés et dimensionnés en fonction de la donnée à afficher.The display mechanism downshifts according to the invention is characterized in that it comprises a star secured to a toothed drive wheel, a succession of points constituting the star, each having a flank against which a feeler attached to a needle is supported by the action of a spring, the sides being adapted and dimensioned in function of the data to be displayed.

Dans un mode d'exécution préféré, le palpeur, l'aiguille et le ressort sont montés sur un canon tournant sur un axe. Le mécanisme comprend une butée qui bloque la rotation de retour du canon, après que le palpeur ait terminé sa course sur le flanc de la pointe de l'étoile, et retombe sur le flanc suivant pour un nouveau cycle.In a preferred embodiment, the probe, the needle and the spring are mounted on a barrel turning on an axis. The mechanism includes a stop which blocks the barrel's return rotation, after the probe has finished its race on the side of the point of the star, and falls on the next flank for a new cycle.

Les flancs des pointes de l'étoile peuvent être formés et dimensionnés de manière à réaliser un affichage linéaire.The sides of the points of the star can be trained and sized to achieve a linear display.

Le dessin représente, à titre d'exemple, un mode d'exécution d'un mécanisme d'affichage rétrogradant selon l'invention.
Dans le dessin :

  • la figure 1 représente une vue de dessus du mécanisme,
  • la figure 2 est une vue en coupe à travers l'axe portant l'aiguille du mécanisme,
  • la figure 3 est une vue semblable à celle de la figure 1, le palpeur de rétrograde étant dans une position extrême précédent la remise à zéro de l'aiguille, et
  • la figure 4 est une vue de dessus de l'étoile de rétrograde.
The drawing shows, by way of example, an embodiment of a retrograde display mechanism according to the invention.
In the drawing:
  • FIG. 1 represents a top view of the mechanism,
  • FIG. 2 is a view in section through the axis carrying the needle of the mechanism,
  • FIG. 3 is a view similar to that of FIG. 1, the retrograde feeler being in an extreme position preceding the resetting of the needle, and
  • Figure 4 is a top view of the retrograde star.

Les figures 1 à 4 du dessin représentent un mécanisme d'affichage à secteur rétrograde simplifié. En horlogerie, cet affichage permet d'indiquer par exemple la réserve de marche d'un montre ou, dans le présent cas, la seconde. Elle a comme avantage de ne pas avoir de moments à vide. En effet, l'aiguille est tout le temps en mouvement, contrairement à bien des mouvements rétrogrades de l'art antérieur.
Le mécanisme comprend :

  • une étoile rétrograde 1,
  • un ressort spiral 2,
  • un palpeur rétrograde 3,
  • une goupille de fixation du ressort spiral4,
  • une goupille de butée 5, et
  • une aiguille 6
Figures 1 to 4 of the drawing show a simplified retrograde sector display mechanism. In watchmaking, this display indicates, for example, the power reserve of a watch or, in this case, the second. It has the advantage of not having empty moments. Indeed, the needle is always in motion, unlike many retrograde movements of the prior art.
The mechanism includes:
  • a retrograde star 1,
  • a spiral spring 2,
  • a retrograde probe 3,
  • a spiral spring fixing pin4,
  • a stop pin 5, and
  • a needle 6

L'entraínement du mécanisme de rétrograde se fait par l'intermédiaire des roues R1 et R2. L'étoile de rétrograde 1 est solidaire de la roue R2 et présente plusieurs pointes identiques régulièrement réparties sur sa périphérie.The drive of the retrograde mechanism is made via wheels R1 and R2. The retrograde star 1 is integral with the wheel R2 and has several identical spikes regularly distributed around its periphery.

Le bec du palpeur de rétrograde 3 est continuellement en contact avec une pointe de l'étoile de rétrograde 1 en s'appuyant sur le flanc B de ladite pointe. En effet, le ressort spiral 2 maintient ce contact permanent. Sur la coupe de l'axe A (figure 2), on peut apercevoir le détail du mécanisme. Le ressort spiral 2 est solidaire du canon 7. De même, le palpeur de rétrograde 3 et l'aiguille 6 sont chassés sur ce même canon 7. Celui-ci est libre sur l'axe A. La goupille 4 sert à maintenir le ressort spiral 2.The beak of the retrograde probe 3 is continuously in contact with a tip of the retrograde star 1 resting on the side B of said point. Indeed, the spiral spring 2 maintains this permanent contact. On the cup of axis A (figure 2), we can see the detail of the mechanism. The spiral spring 2 is integral with the canon 7. Similarly, the retrograde probe 3 and the needle 6 are driven out on this same barrel 7. It is free on axis A. Pin 4 is used to hold the spiral spring 2.

Lors du fonctionnement, le mobile rétrograde R2 tourne dans le sens horaire, entraínant le bec du palpeur de rétrograde 3 par l'intermédiaire du flanc B. Lorsque le bec arrive en bout de course (figure 3), celui-ci libère le palpeur qui retombe sur le flanc suivant C. Et ainsi de suite sur le flanc C jusqu'au suivant. C'est ainsi que l'aiguille est en mouvement continuel. La goupille 5 fait office de butée lors du saut, et empêche que le bec du palpeur de rétrograde 3 ne vienne en fond de profil de l'étoile de rétrograde 1.During operation, the mobile retrograde R2 rotates clockwise, causing the spout of the retrograde probe 3 via the flank B. When the beak reaches the end of its travel (Figure 3), it releases the probe which falls on the next flank C. And so on on the side C to the next. Therefore the needle is in continuous movement. The pin 5 acts as a stop during the jump, and prevents the beak of the retrograde probe 3 does not come to the bottom in profile of the retrograde star 1.

Les flancs B, C, des pointes de l'étoile de rétrograde 1 sont judicieusement adaptées afin que l'aiguille de rétrograde 6 se déplace linéairement sur un cadran non représenté.The flanks B, C, of the points of the star of retrograde 1 are judiciously adapted so that retrograde needle 6 moves linearly on a dial not shown.

Comme représenté dans la figure 2, le ressort spiral 2, le palpeur de rétrograde 3, et l'aiguille 6 sont chassés sur le canon 7, et sont par conséquent fixes dans leur position respective sur ledit canon 7.As shown in Figure 2, the spring hairspring 2, retrograde feeler 3, and needle 6 are driven out of barrel 7, and are by therefore fixed in their respective positions on said canon 7.

Le ressort spiral 2 est sous tension et fixé au bâti du mécanisme à l'aide de la goupille 4. Comme représenté sur la figure 1, l'aiguille 6 est au début de sa course contre la butée 5 et le palpeur de rétrograde 3 également au début de sa course au contact du flanc B d'une pointe de l'étoile de rétrograde 1. L'étoile 1 solidaire de la roue R2, est entraínée selon la flèche (voir figures 1 et 3) par le mobile R1, et entraíne à son tour le palpeur 3, qui, au fur et à mesure de l'avance de la roue R1, se déplace le long du flanc B de la pointe de l'étoile 1. L'aiguille 6 qui est dans une position fixe par rapport au palpeur, est entraínée par ledit palpeur 3 contre l'action du ressort 2, et indique les valeurs affichées sur le cadran non représenté. Au moment où le palpeur 3 dépasse la position indiquée dans la figure 3, le ressort 2 ramène le palpeur 3 et l'aiguille 6 dans leur position de départ en appui contre la butée 5, et le cycle peut recommencer sur le flanc C de l'étoile 1.Spiral spring 2 is under tension and fixed to the frame of the mechanism using the pin 4. As shown in Figure 1, the needle 6 is at the start of its race against stop 5 and the retrograde probe 3 also at the start of its stroke in contact with the flank B of a point of the retrograde star 1. The star 1 attached to the wheel R2, is driven according to the arrow (see Figures 1 and 3) by the mobile R1, and leads to its turn probe 3, which, as and the advance of the wheel R1, moves along the sidewall B of the point of the star 1. The needle 6 which is in a fixed position relative to the probe, is driven by said probe 3 against the action of spring 2, and indicates the values displayed on the dial not shown. When the probe 3 exceeds the position shown in figure 3, the spring 2 brings back the probe 3 and the needle 6 in their starting position in abutment against the stop 5, and the cycle can start again on the flank C of star 1.

Le mécanisme qui vient d'être décrit en regard des figures 1 à 4, peut être adapté pour indiquer n'importe quelle donnée habituellement affichée par une pièce d'horlogerie, notamment des secondes, des minutes, des heures, des dates, des jours, des phases de la lune, etc.... Il suffit pour cela de dimensionner de manière adéquate les mobiles R1 et R2, et d'adapter les pointes de l'étoile 1 aux valeurs que l'on désire afficher.The mechanism which has just been described in see Figures 1 to 4, can be adapted for indicate any data usually displayed by a timepiece, including seconds, minutes, hours, dates, days, phases of the moon, etc ... for this to adequately size the mobile R1 and R2, and adapt the tips of the star 1 with the values you want to display.

Le dispositif décrit offre l'avantage d'être simple et de proposer un affichage toujours en mouvement. En effet, dès que le palpeur passe une pointe de l'étoile, le cycle suivant démarre et l'affichage se poursuit sans interruption.The device described offers the advantage of being simple and to propose a display always in movement. Indeed, as soon as the probe passes a tip of the star, the next cycle starts and the display continues without interruption.

Claims (4)

Mécanisme d'affichage rétrogradant, caractérisé en ce qu'il comprend une étoile (1) solidaire d'une roue d'entraínement, une succession de pointes constituant l'étoile présentant chacune un flanc (B, C, ..) contre lequel un palpeur (3) solidaire d'une aiguille (6) s'appuie, sous l'action d'un ressort (2), les flancs (B, C, ..) étant adaptés et dimensionnés en fonction de la donnée à afficher.Retrograde display mechanism, characterized in that it comprises a star (1) integral with a drive wheel, a succession of points constituting the star each having a flank (B, C, ..) against which a feeler (3) integral with a needle (6) is supported, under the action of a spring (2), the sides (B, C, ..) being adapted and sized according to the data to be displayed. Mécanisme selon la revendication 1 caractérisé en ce que le palpeur (3), l'aiguille (6), et le ressort (2) sont montés sur un canon (7) tournant sur un axe.Mechanism according to claim 1 characterized in that the feeler (3), the needle (6), and the spring (2) are mounted on a barrel (7) rotating on an axis. Mécanisme selon la revendication 2 caractérisé en ce qu'une butée (5) bloque la rotation de retour du canon (7) sous l'action du ressort (2) après que le palpeur ait terminé sa course sur le flanc(B,C,..), et retombe sur le flanc suivant pour un nouveau cycle.Mechanism according to Claim 2, characterized in that a stop (5) blocks the return rotation of the barrel (7) under the action of the spring (2) after the probe has finished its travel on the side (B, C, ..), and falls back on the next flank for a new cycle. Mécanisme selon la revendication 1, caractérisé en ce que les flancs (B, C, ..) des pointes de l'étoile (1) sont formés de manière à réaliser un affichage linéaire.Mechanism according to claim 1, characterized in that the sides (B, C, ..) of the points of the star (1) are formed so as to produce a linear display.
EP04006463A 2003-03-27 2004-03-18 Retrograde display mechanism for timepiece Withdrawn EP1462875A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH5352003 2003-03-27
CH5352003A CH696860A5 (en) 2003-03-27 2003-03-27 Mechanism downshifting display.

Publications (2)

Publication Number Publication Date
EP1462875A2 true EP1462875A2 (en) 2004-09-29
EP1462875A3 EP1462875A3 (en) 2010-04-28

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ID=32778612

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Application Number Title Priority Date Filing Date
EP04006463A Withdrawn EP1462875A3 (en) 2003-03-27 2004-03-18 Retrograde display mechanism for timepiece

Country Status (7)

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EP (1) EP1462875A3 (en)
JP (1) JP2004294441A (en)
CN (1) CN100412726C (en)
CH (1) CH696860A5 (en)
HK (1) HK1067191A1 (en)
RU (1) RU2340924C2 (en)
SG (1) SG125951A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH714222A1 (en) * 2017-10-04 2019-04-15 Richemont Int Sa Display mechanism for a timepiece.

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108279557B (en) * 2018-03-28 2024-03-01 天王电子（深圳）有限公司 Pointer reverse jump structure and clock
EP4141581B1 (en) * 2021-08-30 2024-06-26 Nogerah SA Display mechanism for a lunisolar calendar for timepiece movement, corresponding timepiece movement and timepiece

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1350131A (en) * 1919-06-20 1920-08-17 Cortland L Hill Clock
EP0788036A2 (en) * 1996-02-01 1997-08-06 Gerald Genta S.A. Timepiece, particularly wristwatch

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Publication number Priority date Publication date Assignee Title
CH681761B5 (en) * 1991-12-28 1993-11-30 Longines Montres Comp D Part of clockwork mechanical and / or electromechanical, provided with automatic retrograde moving display means.
CH688068B5 (en) * 1994-07-29 1998-02-13 Technowatch Sa Second indicator device for a timepiece.
CN2277532Y (en) * 1996-08-07 1998-04-01 张建新 Double-face clockwise and counterclockwise hands clock and watch
CH690630A5 (en) * 1997-03-24 2000-11-15 Leschot Sa Watch incorporating a retrograde dial type display of the day of the month where the days are displayed on a dial sector with markings indicating days between 1 and 31 and a hand pointing to the day of the month
CH691087A5 (en) * 1997-04-04 2001-04-12 Gerald Genta Sa Timepiece, in particular wristwatch.
EP1102134A1 (en) * 1999-11-19 2001-05-23 AGENHOR SA, Atelier Genevois d'Horlogerie Retrograde sector display device
DE60038867D1 (en) * 2000-03-16 2008-06-26 Manufacture Roger Dubuis S.A. Triple declining display and its mechanism

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1350131A (en) * 1919-06-20 1920-08-17 Cortland L Hill Clock
EP0788036A2 (en) * 1996-02-01 1997-08-06 Gerald Genta S.A. Timepiece, particularly wristwatch

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH714222A1 (en) * 2017-10-04 2019-04-15 Richemont Int Sa Display mechanism for a timepiece.

Also Published As

Publication number Publication date
SG125951A1 (en) 2006-10-30
CN1534407A (en) 2004-10-06
CN100412726C (en) 2008-08-20
EP1462875A3 (en) 2010-04-28
CH696860A5 (en) 2007-12-31
RU2004109130A (en) 2005-09-20
JP2004294441A (en) 2004-10-21
HK1067191A1 (en) 2005-04-01
RU2340924C2 (en) 2008-12-10

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