EP3855255A1 - Locking device for timepieces - Google Patents

Locking device for timepieces Download PDF

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Publication number
EP3855255A1
EP3855255A1 EP20152932.8A EP20152932A EP3855255A1 EP 3855255 A1 EP3855255 A1 EP 3855255A1 EP 20152932 A EP20152932 A EP 20152932A EP 3855255 A1 EP3855255 A1 EP 3855255A1
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EP
European Patent Office
Prior art keywords
movable part
locking device
stop
movable
locking
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.)
Granted
Application number
EP20152932.8A
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German (de)
French (fr)
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EP3855255B1 (en
Inventor
James Hide
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.)
Patek Philippe SA Geneve
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Patek Philippe SA Geneve
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Publication date
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Priority to EP20152932.8A priority Critical patent/EP3855255B1/en
Publication of EP3855255A1 publication Critical patent/EP3855255A1/en
Application granted granted Critical
Publication of EP3855255B1 publication Critical patent/EP3855255B1/en
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Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B15/00—Escapements
    • G04B15/10—Escapements with constant impulses for the regulating mechanism
    • 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
    • G04B13/00—Gearwork
    • G04B13/002—Gearwork where rotation in one direction is changed into a stepping movement
    • 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
    • G04B17/00—Mechanisms for stabilising frequency
    • G04B17/04—Oscillators acting by spring tension
    • 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
    • G04B17/00—Mechanisms for stabilising frequency
    • G04B17/04—Oscillators acting by spring tension
    • G04B17/045—Oscillators acting by spring tension with oscillating blade springs
    • 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
    • G04B19/24306—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 combination of different shapes, e.g. bands and discs, discs and drums
    • G04B19/2432—Driving or releasing mechanisms wherein the date indicators are driven or released mechanically by a clockwork movement
    • G04B19/2434—Driving or releasing mechanisms wherein the date indicators are driven or released mechanically by a clockwork movement driven or released by their own energy source which is released at regular time intervals
    • 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
    • G04B23/00—Arrangements producing acoustic signals at preselected times
    • G04B23/02—Alarm clocks
    • G04B23/025—Signal triggering
    • 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
    • G04B19/26—Clocks or watches with indicators for tides, for the phases of the moon, or the like
    • G04B19/268—Clocks or watches with indicators for tides, for the phases of the moon, or the like with indicators for the phases of the moon

Definitions

  • the present invention relates to a locking device for a timepiece, capable of locking a rotating member under tension and unlocking it at determined instants to control movements by jumps of one or more moving parts.
  • the rotary locking member is used, for example, to drive a jumping indicator member, to trigger a mechanism such as a striking mechanism or to periodically arm an intermediate spring of a so-called constant force mechanism.
  • the drawback of this locking device is that the times at which the rotary locking member is released depend on manufacturing and assembly tolerances. This can generate inaccuracies in the display of information by the jumping indicator unit, in the triggering of the controlled mechanism. by the rotary locking member or in the quantity of energy delivered in each cycle by the intermediate spring of the so-called constant force mechanism.
  • the present invention aims to remedy this drawback or at least to mitigate it.
  • the second movable part of the blocking device comprises an adjustment device arranged to act on the stop device and making it possible to adjust said determined instants.
  • the figures 1 and 2 show two examples of a locking device for a timepiece such as a wristwatch, a pocket watch or a clock, designed according to the teaching of patent applications WO 2018/193365 and WO 2018/193366 the respective contents of which are incorporated herein by reference.
  • the locking device 10 comprises a movable frame 11 having first and second openings 12, 13 which respectively receive a rotary drive member 14 and a rotary lock member 15.
  • the rotary drive members 14 and locking 15 are for example fingers, as shown in the drawings, or stars.
  • the first and second openings 12, 13 may have an open contour ( figure 1 ) or closed contour ( figure 2 ).
  • the rotary drive member 14 is driven continuously in a determined direction, namely the counterclockwise direction to the figure 1 and clockwise to figure 2 , by an energy source of the timepiece, typically via a cog, and alternately cooperates with first and second drive elements 16, 17 defined by the wall of the first opening 12 to move the movable frame 11 alternately in two opposite directions.
  • the movable frame 11 moves in rotation around an axis A.
  • it moves in translation in the direction indicated by the arrow F while being guided by a flexible guide 18 which can be monolithic with the movable frame 11.
  • the rotary locking member 15 is kept under tension by a power source of the timepiece, which may be the same source of energy as that driving the rotary drive member 14 or another source of energy. energy independent of the first.
  • the rotary drive member 14 rotates without driving, and preferably without touching, the movable frame 11 and the rotary blocking member 15 bears against one of two stop elements 19, 20 integral with the movable frame 11.
  • the rotary drive member 14 comes into contact with one, 16, of the drive elements 16, 17 and then cooperates with it tangentially, in the manner of a gear, to move the movable frame. 11 one way for a while.
  • This movement causes the stopper 19 against which it was resting to leave the path of the rotary blocking member 15, thus freeing the rotary blocking member 15.
  • the latter then moves almost instantaneously to abut against the other stopper 20.
  • the figure 1 shows the rotating blocking member 15 during its fall between the stop elements 19, 20.
  • the figure 2 shows the rotary blocking member 15 having just come into contact with the stop member 20.
  • the rotary drive member 14 then leaves the driving member 16 and continues its rotation without driving the movable frame 11
  • the rotary locking member 15 remains in abutment against the stop member 20 until the rotary driving member 14 comes into contact with the other driving member 17 and cooperates with it tangentially to move the frame mobile 11 in the other direction.
  • the rotary blocking member 15 is then released to rest against the first stop member 19, the rotary drive member 14 leaves the drive member 17 and the cycle repeats.
  • Each jump of the rotary locking member 15 between the two stop elements 19, 20 causes a corresponding jump of an indicator member, such as a needle, activates a mechanism such as a striking mechanism or arms a spring intermediary of a so-called constant force mechanism, for example.
  • the indicator member can indicate information such as the date, the week, the day of the week, the month or the moon phase.
  • each stop element 19, 20 with which the rotary locking member 15 cooperates can be concentric with the movable frame 11, so that the support of the member rotary locking 15 on the stopper 19, 20 does not move the movable frame 11.
  • the stopper surface 21, 22 can be inclined so that the rotary locking member 15 exerts on the movable frame 11 a draft which immobilizes the movable frame 11 by compensating for an elastic return torque applied to the movable frame 11.
  • each stop element 19, 20 with which the rotary locking member 15 cooperates may be parallel to the direction of movement of the movable frame 11, in particular if the guide flexible 18 is arranged so as not to apply any elastic return force on the movable frame 11.
  • the stop surface 21, 22 can be inclined, as shown, so that the rotary locking member 15 exerts on the movable frame 11 a draw which immobilizes the movable frame 11 by compensating for an elastic return force exerted by the flexible guide 18 and / or by causing the wall of the second opening 13 to abut against the rotary locking member 15.
  • each stop element 19, 20 constitutes or makes part of a rigid block 23, 24 suspended from a rigid base 25, 26 by a flexible guide 27, 28.
  • the rigid base 25, 26 - flexible guide 27, 28 - rigid block 23, 24 assembly can be part of the frame mobile 11 and even be monolithic with the rest of the mobile frame 11, as in the example of figure 1 , or be attached to the mobile frame 11, as in the example of figure 2 .
  • each flexible guide 27, 28 is of the type with a remote center of rotation called "RCC" (Remote Center Compliance) and guides the corresponding rigid block 23, 24 in rotation around the center of curvature of the corresponding stop surface 21, 22 , in other words, parallel to said stop surface.
  • each flexible guide 27, 28 comprises two parallel elastic blades and guides the corresponding rigid block 23, 24 in translation parallel to the corresponding stop surface 21, 22.
  • Each flexible guide 27, 28 is prestressed and permanently applies the corresponding rigid block 23, 24 against an adjustment element 29, 30, such as an eccentric (variant shown) or an adjustment screw, mounted on the mobile frame 11.
  • an adjustment element 29, 30 such as an eccentric (variant shown) or an adjustment screw, mounted on the mobile frame 11.
  • each flexible guide 27, 28 is low in the guiding direction of the corresponding rigid block 23, 24 (the elastic blades being urged in this direction in bending) but is high in the other directions, in particular in the direction of feedback vis-à-vis the rotary locking member 15 (the elastic blades being urged in this direction mainly in compression for one and mainly in traction for the other).
  • the two stops 19, 20 are adjustable, as described above and shown in the drawings.
  • the movable frame 11 consists of two parts 11a, 11b integral, therefore connected kinematically, respectively comprising the first opening 12 and the second opening 13.
  • these two parts 11a, 11b could be separated and kinematically connected by a connection of the gear type or the like, preferably without play, in the manner for example of the embodiment shown in FIG. 7 of the application WO 2018/193365 .
  • the assembly comprising the rigid bases 25, 26, the flexible guides 27, 28 and the rigid blocks 23, 24 would be mounted on, or monolithic with, the second part 11b and the adjustment elements 29, 30 would also be mounted on the second part 11b.
  • the openings 12, 13 could not be coplanar but superimposed. More than two drive elements and / or more than two stop elements could be provided.
  • the wall of the first opening 12 could define additional drive elements to allow a pre-reinforcement of the movable frame 11 or of the part 11a before its displacement leading to the release of the rotary locking member 15.
  • the flexible guides 27, 28 could be replaced by an arrangement of slides and return springs.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Transmission Devices (AREA)

Abstract

Le dispositif de blocage (10) pour l'horlogerie selon l'invention comprend : une première partie mobile (11a) et une deuxième partie mobile (11b, 25-30) reliées cinématiquement entre elles, typiquement solidaires, la première partie mobile (11a) comprenant un dispositif d'entraînement (16, 17), la deuxième partie mobile (11b, 25-30) comprenant un dispositif d'arrêt (19, 20) ; un organe rotatif d'entraînement (14) destiné à tourner dans un unique sens et agencé pour coopérer avec le dispositif d'entraînement (16, 17) pour déplacer la première partie mobile (11a), et donc la deuxième partie mobile (11b), alternativement dans des sens opposés ; et un organe rotatif de blocage (15) destiné à être mis sous tension et agencé pour coopérer avec le dispositif d'arrêt (19, 20) pour être bloqué par la deuxième partie mobile (11b, 25-30) et libéré à des instants déterminés par lesdits déplacements de la deuxième partie mobile (11b, 25-30). La deuxième partie mobile (11b, 25-30) comprend un dispositif de réglage (25-30) agissant sur le dispositif d'arrêt (19, 20) et permettant de régler les instants déterminés où l'organe rotatif de blocage (15) est libéré.The locking device (10) for watchmaking according to the invention comprises: a first movable part (11a) and a second movable part (11b, 25-30) kinematically connected to each other, typically integral, the first movable part (11a ) comprising a drive device (16, 17), the second movable part (11b, 25-30) comprising a stop device (19, 20); a rotary drive member (14) intended to rotate in a single direction and arranged to cooperate with the drive device (16, 17) to move the first movable part (11a), and therefore the second movable part (11b) , alternately in opposite directions; and a rotating blocking member (15) intended to be energized and arranged to cooperate with the stop device (19, 20) to be blocked by the second movable part (11b, 25-30) and released at times determined by said displacements of the second movable part (11b, 25-30). The second movable part (11b, 25-30) comprises an adjustment device (25-30) acting on the stop device (19, 20) and making it possible to adjust the determined instants when the rotary locking member (15) is released.

Description

La présente invention concerne un dispositif de blocage pour une pièce d'horlogerie, capable de bloquer un organe rotatif sous tension et de le débloquer à des instants déterminés pour commander des déplacements par sauts d'un ou plusieurs mobiles.The present invention relates to a locking device for a timepiece, capable of locking a rotating member under tension and unlocking it at determined instants to control movements by jumps of one or more moving parts.

La présente invention concerne plus particulièrement un dispositif de blocage comprenant :

  • des première et deuxième parties mobiles reliées cinématiquement entre elles, la première partie mobile comprenant un dispositif d'entraînement, la deuxième partie mobile comprenant un dispositif d'arrêt,
  • un organe rotatif d'entraînement destiné à tourner dans un unique sens et agencé pour coopérer avec le dispositif d'entraînement pour déplacer la première partie mobile, et donc la deuxième partie mobile, alternativement dans des sens opposés, et
  • un organe rotatif de blocage destiné à être mis sous tension et agencé pour coopérer avec le dispositif d'arrêt pour être bloqué par la deuxième partie mobile et libéré à des instants déterminés par lesdits déplacements de la deuxième partie mobile.
The present invention relates more particularly to a locking device comprising:
  • first and second movable parts kinematically connected to each other, the first movable part comprising a drive device, the second movable part comprising a stop device,
  • a rotary drive member intended to rotate in a single direction and arranged to cooperate with the drive device to move the first movable part, and therefore the second movable part, alternately in opposite directions, and
  • a rotary blocking member intended to be energized and arranged to cooperate with the stop device to be blocked by the second movable part and released at times determined by said movements of the second movable part.

Un tel dispositif est décrit dans les demandes de brevet WO 2018/193365 et WO 2018/193366 de la demanderesse. L'organe rotatif de blocage sert par exemple à entraîner un organe indicateur sautant, à déclencher un mécanisme tel qu'un mécanisme de sonnerie ou à armer périodiquement un ressort intermédiaire d'un mécanisme dit à force à constante.Such a device is described in patent applications WO 2018/193365 and WO 2018/193366 of the plaintiff. The rotary locking member is used, for example, to drive a jumping indicator member, to trigger a mechanism such as a striking mechanism or to periodically arm an intermediate spring of a so-called constant force mechanism.

L'inconvénient de ce dispositif de blocage est que les instants auxquels l'organe rotatif de blocage est libéré dépendent des tolérances de fabrication et d'assemblage. Cela peut générer des imprécisions dans l'affichage d'information par l'organe indicateur sautant, dans le déclenchement du mécanisme commandé par l'organe rotatif de blocage ou dans la quantité d'énergie délivrée à chaque cycle par le ressort intermédiaire du mécanisme dit à force constante.The drawback of this locking device is that the times at which the rotary locking member is released depend on manufacturing and assembly tolerances. This can generate inaccuracies in the display of information by the jumping indicator unit, in the triggering of the controlled mechanism. by the rotary locking member or in the quantity of energy delivered in each cycle by the intermediate spring of the so-called constant force mechanism.

La présente invention vise à remédier à cet inconvénient ou au moins à l'atténuer.The present invention aims to remedy this drawback or at least to mitigate it.

A cette fin, la deuxième partie mobile du dispositif de blocage selon l'invention comprend un dispositif de réglage agencé pour agir sur le dispositif d'arrêt et permettant de régler lesdits instants déterminés.To this end, the second movable part of the blocking device according to the invention comprises an adjustment device arranged to act on the stop device and making it possible to adjust said determined instants.

D'autres caractéristiques et avantages de la présente invention apparaîtront à la lecture de la description détaillée suivante faite en référence aux dessins annexés dans lesquels :

  • la figure 1 est une vue de dessus d'un dispositif de blocage selon un premier exemple de réalisation de l'invention ;
  • la figure 2 est une vue de dessus d'un dispositif de blocage selon un deuxième exemple de réalisation de l'invention.
Other characteristics and advantages of the present invention will become apparent on reading the following detailed description given with reference to the appended drawings in which:
  • the figure 1 is a top view of a locking device according to a first embodiment of the invention;
  • the figure 2 is a top view of a locking device according to a second embodiment of the invention.

Les figures 1 et 2 montrent deux exemples de dispositif de blocage pour une pièce d'horlogerie telle qu'une montre-bracelet, une montre de poche ou une pendulette, conçus selon l'enseignement des demandes de brevet WO 2018/193365 et WO 2018/193366 dont les contenus respectifs sont incorporés à la présente demande par renvoi.The figures 1 and 2 show two examples of a locking device for a timepiece such as a wristwatch, a pocket watch or a clock, designed according to the teaching of patent applications WO 2018/193365 and WO 2018/193366 the respective contents of which are incorporated herein by reference.

Dans ces deux exemples, le dispositif de blocage 10 comprend un cadre mobile 11 présentant des première et deuxième ouvertures 12, 13 qui reçoivent respectivement un organe rotatif d'entraînement 14 et un organe rotatif de blocage 15. Les organes rotatifs d'entraînement 14 et de blocage 15 sont par exemple des doigts, comme représenté sur les dessins, ou des étoiles. Les première et deuxième ouvertures 12, 13 peuvent être à contour ouvert (figure 1) ou à contour fermé (figure 2).In these two examples, the locking device 10 comprises a movable frame 11 having first and second openings 12, 13 which respectively receive a rotary drive member 14 and a rotary lock member 15. The rotary drive members 14 and locking 15 are for example fingers, as shown in the drawings, or stars. The first and second openings 12, 13 may have an open contour ( figure 1 ) or closed contour ( figure 2 ).

L'organe rotatif d'entraînement 14 est entraîné continûment dans un sens déterminé, à savoir le sens antihoraire à la figure 1 et le sens horaire à la figure 2, par une source d'énergie de la pièce d'horlogerie, typiquement via un rouage, et coopère alternativement avec des premier et deuxième éléments d'entraînement 16, 17 définis par la paroi de la première ouverture 12 pour déplacer le cadre mobile 11 alternativement dans deux sens opposés. Dans l'exemple de la figure 1, le cadre mobile 11 se déplace en rotation autour d'un axe A. Dans l'exemple de la figure 2, il se déplace en translation dans la direction indiquée par la flèche F en étant guidé par un guidage flexible 18 qui peut être monolithique avec le cadre mobile 11.The rotary drive member 14 is driven continuously in a determined direction, namely the counterclockwise direction to the figure 1 and clockwise to figure 2 , by an energy source of the timepiece, typically via a cog, and alternately cooperates with first and second drive elements 16, 17 defined by the wall of the first opening 12 to move the movable frame 11 alternately in two opposite directions. In the example of figure 1 , the movable frame 11 moves in rotation around an axis A. In the example of figure 2 , it moves in translation in the direction indicated by the arrow F while being guided by a flexible guide 18 which can be monolithic with the movable frame 11.

L'organe rotatif de blocage 15 est maintenu sous tension par une source d'énergie de la pièce d'horlogerie, qui peut être la même source d'énergie que celle entraînant l'organe rotatif d'entraînement 14 ou une autre source d'énergie indépendante de la première.The rotary locking member 15 is kept under tension by a power source of the timepiece, which may be the same source of energy as that driving the rotary drive member 14 or another source of energy. energy independent of the first.

La plupart du temps, l'organe rotatif d'entraînement 14 tourne sans entraîner, et de préférence sans toucher, le cadre mobile 11 et l'organe rotatif de blocage 15 est en appui contre l'un de deux éléments d'arrêt 19, 20 solidaires du cadre mobile 11.Most of the time, the rotary drive member 14 rotates without driving, and preferably without touching, the movable frame 11 and the rotary blocking member 15 bears against one of two stop elements 19, 20 integral with the movable frame 11.

A un moment donné, l'organe rotatif d'entraînement 14 entre en contact avec l'un, 16, des éléments d'entraînement 16, 17 puis coopère avec lui tangentiellement, à la manière d'un engrenage, pour déplacer le cadre mobile 11 dans un sens pendant un certain temps. Ce déplacement fait sortir de la trajectoire de l'organe rotatif de blocage 15 l'élément d'arrêt 19 contre lequel il s'appuyait, libérant ainsi l'organe rotatif de blocage 15. Ce dernier se déplace alors quasi-instantanément jusqu'à buter contre l'autre élément d'arrêt 20. La figure 1 montre l'organe rotatif de blocage 15 pendant sa chute entre les éléments d'arrêt 19, 20. La figure 2 montre l'organe rotatif de blocage 15 venant d'arriver au contact de l'élément d'arrêt 20. L'organe rotatif d'entraînement 14 quitte ensuite l'élément d'entraînement 16 et continue sa rotation sans entraîner le cadre mobile 11. L'organe rotatif de blocage 15 reste en appui contre l'élément d'arrêt 20 jusqu'à ce que l'organe rotatif d'entraînement 14 arrive au contact de l'autre élément d'entraînement 17 et coopère avec lui tangentiellement pour déplacer le cadre mobile 11 dans l'autre sens. L'organe rotatif de blocage 15 est alors libéré pour se retrouver en appui contre le premier élément d'arrêt 19, l'organe rotatif d'entraînement 14 quitte l'élément d'entraînement 17 et le cycle se répète.At a given moment, the rotary drive member 14 comes into contact with one, 16, of the drive elements 16, 17 and then cooperates with it tangentially, in the manner of a gear, to move the movable frame. 11 one way for a while. This movement causes the stopper 19 against which it was resting to leave the path of the rotary blocking member 15, thus freeing the rotary blocking member 15. The latter then moves almost instantaneously to abut against the other stopper 20. The figure 1 shows the rotating blocking member 15 during its fall between the stop elements 19, 20. The figure 2 shows the rotary blocking member 15 having just come into contact with the stop member 20. The rotary drive member 14 then leaves the driving member 16 and continues its rotation without driving the movable frame 11 The rotary locking member 15 remains in abutment against the stop member 20 until the rotary driving member 14 comes into contact with the other driving member 17 and cooperates with it tangentially to move the frame mobile 11 in the other direction. The rotary blocking member 15 is then released to rest against the first stop member 19, the rotary drive member 14 leaves the drive member 17 and the cycle repeats.

Chaque saut de l'organe rotatif de blocage 15 entre les deux éléments d'arrêt 19, 20 entraîne un saut correspondant d'un organe indicateur, tel qu'une aiguille, active un mécanisme tel qu'un mécanisme de sonnerie ou arme un ressort intermédiaire d'un mécanisme dit à force constante, par exemple. L'organe indicateur peut indiquer une information telle que le quantième, la semaine, le jour de la semaine, le mois ou la phase de lune.Each jump of the rotary locking member 15 between the two stop elements 19, 20 causes a corresponding jump of an indicator member, such as a needle, activates a mechanism such as a striking mechanism or arms a spring intermediary of a so-called constant force mechanism, for example. The indicator member can indicate information such as the date, the week, the day of the week, the month or the moon phase.

Dans l'exemple de la figure 1, la surface de chaque élément d'arrêt 19, 20 avec laquelle coopère l'organe rotatif de blocage 15, dite surface d'arrêt 21, 22, peut être concentrique avec le cadre mobile 11, pour que l'appui de l'organe rotatif de blocage 15 sur l'élément d'arrêt 19, 20 ne déplace pas le cadre mobile 11. En variante, la surface d'arrêt 21, 22 peut être inclinée pour que l'organe rotatif de blocage 15 exerce sur le cadre mobile 11 un tirage qui immobilise le cadre mobile 11 en compensant un couple de rappel élastique appliqué au cadre mobile 11.In the example of figure 1 , the surface of each stop element 19, 20 with which the rotary locking member 15 cooperates, called the stop surface 21, 22, can be concentric with the movable frame 11, so that the support of the member rotary locking 15 on the stopper 19, 20 does not move the movable frame 11. Alternatively, the stopper surface 21, 22 can be inclined so that the rotary locking member 15 exerts on the movable frame 11 a draft which immobilizes the movable frame 11 by compensating for an elastic return torque applied to the movable frame 11.

Dans l'exemple de la figure 2, la surface de chaque élément d'arrêt 19, 20 avec laquelle coopère l'organe rotatif de blocage 15, dite surface d'arrêt 21, 22, peut être parallèle à la direction de déplacement du cadre mobile 11, en particulier si le guidage flexible 18 est agencé pour n'appliquer aucune force de rappel élastique sur le cadre mobile 11. En variante, la surface d'arrêt 21, 22 peut être inclinée, comme cela est représenté, pour que l'organe rotatif de blocage 15 exerce sur le cadre mobile 11 un tirage qui immobilise le cadre mobile 11 en compensant une force de rappel élastique exercée par le guidage flexible 18 et/ou en en faisant buter la paroi de la deuxième ouverture 13 contre l'organe rotatif de blocage 15.In the example of figure 2 , the surface of each stop element 19, 20 with which the rotary locking member 15 cooperates, called the stop surface 21, 22, may be parallel to the direction of movement of the movable frame 11, in particular if the guide flexible 18 is arranged so as not to apply any elastic return force on the movable frame 11. As a variant, the stop surface 21, 22 can be inclined, as shown, so that the rotary locking member 15 exerts on the movable frame 11 a draw which immobilizes the movable frame 11 by compensating for an elastic return force exerted by the flexible guide 18 and / or by causing the wall of the second opening 13 to abut against the rotary locking member 15.

Conformément à l'invention, les positions respectives des éléments d'arrêt 19, 20 sont réglables. A cet effet, chaque élément d'arrêt 19, 20 constitue ou fait partie d'un bloc rigide 23, 24 suspendu à une base rigide 25, 26 par un guidage flexible 27, 28. L'ensemble base rigide 25, 26 - guidage flexible 27, 28 - bloc rigide 23, 24 peut faire partie du cadre mobile 11 et même être monolithique avec le reste du cadre mobile 11, comme dans l'exemple de la figure 1, ou être rapporté sur le cadre mobile 11, comme dans l'exemple de la figure 2. Dans l'exemple de la figure 1, chaque guidage flexible 27, 28 est du type à centre de rotation déporté dit « RCC » (Remote Centre Compliance) et guide le bloc rigide correspondant 23, 24 en rotation autour du centre de courbure de la surface d'arrêt correspondante 21, 22, autrement dit, parallèlement à ladite surface d'arrêt. Dans l'exemple de la figure 2, chaque guidage flexible 27, 28 comprend deux lames élastiques parallèles et guide le bloc rigide correspondant 23, 24 en translation parallèlement à la surface d'arrêt correspondante 21, 22.According to the invention, the respective positions of the stop elements 19, 20 are adjustable. For this purpose, each stop element 19, 20 constitutes or makes part of a rigid block 23, 24 suspended from a rigid base 25, 26 by a flexible guide 27, 28. The rigid base 25, 26 - flexible guide 27, 28 - rigid block 23, 24 assembly can be part of the frame mobile 11 and even be monolithic with the rest of the mobile frame 11, as in the example of figure 1 , or be attached to the mobile frame 11, as in the example of figure 2 . In the example of figure 1 , each flexible guide 27, 28 is of the type with a remote center of rotation called "RCC" (Remote Center Compliance) and guides the corresponding rigid block 23, 24 in rotation around the center of curvature of the corresponding stop surface 21, 22 , in other words, parallel to said stop surface. In the example of figure 2 , each flexible guide 27, 28 comprises two parallel elastic blades and guides the corresponding rigid block 23, 24 in translation parallel to the corresponding stop surface 21, 22.

Chaque guidage flexible 27, 28 est précontraint et applique en permanence le bloc rigide correspondant 23, 24 contre un élément de réglage 29, 30, tel qu'un excentrique (variante représentée) ou une vis de réglage, monté sur le cadre mobile 11. En tournant les éléments de réglage 29, 30 au moyen d'un outil pendant l'assemblage de la pièce d'horlogerie, on peut régler la longueur d'interaction entre les éléments d'arrêt 19, 20 et l'organe rotatif de blocage 15, donc le moment où l'organe rotatif de blocage 15 sera libéré pendant le déplacement du cadre mobile 11 par l'organe rotatif d'entraînement 14. Grâce à la direction de guidage des éléments d'arrêt 19, 20 parallèle à leur surface d'arrêt 21, 22, la direction de la force appliquée par l'organe rotatif de blocage 15 sur chaque élément d'arrêt 19, 20 n'est pas modifiée par le réglage.Each flexible guide 27, 28 is prestressed and permanently applies the corresponding rigid block 23, 24 against an adjustment element 29, 30, such as an eccentric (variant shown) or an adjustment screw, mounted on the mobile frame 11. By turning the adjustment elements 29, 30 by means of a tool during the assembly of the timepiece, the length of interaction between the stop elements 19, 20 and the rotary locking member can be adjusted. 15, therefore the moment when the rotary locking member 15 will be released during the movement of the movable frame 11 by the rotary drive member 14. Thanks to the guiding direction of the stop elements 19, 20 parallel to their surface stopper 21, 22, the direction of the force applied by the rotary locking member 15 on each stopper member 19, 20 is not changed by the adjustment.

Bien qu'ils soient portés par les guidages flexibles 27, 28, les éléments d'arrêt 19, 20 gardent une position fixe par rapport au cadre mobile 11 ou au reste du cadre mobile 11 pendant le fonctionnement du dispositif de blocage 10, même lorsqu'ils sont en contact avec l'organe rotatif de blocage 15. En effet, la raideur de chaque guidage flexible 27, 28 est faible dans la direction de guidage du bloc rigide correspondant 23, 24 (les lames élastiques étant sollicitées dans cette direction en flexion) mais est élevée dans les autres directions, en particulier dans la direction de contre-réaction vis-à-vis de l'organe rotatif de blocage 15 (les lames élastiques étant sollicitées dans cette direction principalement en compression pour l'une et principalement en traction pour l'autre).Although they are carried by the flexible guides 27, 28, the stop elements 19, 20 keep a fixed position with respect to the movable frame 11 or to the rest of the movable frame 11 during the operation of the locking device 10, even when 'they are in contact with the rotary locking member 15. In fact, the stiffness of each flexible guide 27, 28 is low in the guiding direction of the corresponding rigid block 23, 24 (the elastic blades being urged in this direction in bending) but is high in the other directions, in particular in the direction of feedback vis-à-vis the rotary locking member 15 (the elastic blades being urged in this direction mainly in compression for one and mainly in traction for the other).

Pour la précision et la facilité du réglage, il est bien entendu préférable que les deux éléments d'arrêts 19, 20 soient réglables, comme décrit ci-dessus et montré sur les dessins. On pourrait néanmoins n'avoir qu'un seul des deux éléments d'arrêt 19, 20 qui soit réglable.For precision and ease of adjustment, it is of course preferable that the two stops 19, 20 are adjustable, as described above and shown in the drawings. One could nevertheless have only one of the two stop elements 19, 20 which is adjustable.

Le cadre mobile 11 est constitué de deux parties 11a, 11b solidaires, donc reliées cinématiquement, comprenant respectivement la première ouverture 12 et la deuxième ouverture 13. Au lieu d'être solidaires et même monolithiques l'une avec l'autre comme dans les exemples illustrés, ces deux parties 11a, 11b pourraient être séparées et reliées cinématiquement par une liaison de type engrenage ou autre, de préférence sans jeu, à la manière par exemple du mode de réalisation représenté à la figure 7 de la demande WO 2018/193365 . Dans ce cas, l'ensemble comprenant les bases rigides 25, 26, les guidages flexibles 27, 28 et les blocs rigides 23, 24 serait monté sur, ou monolithique avec, la deuxième partie 11b et les éléments de réglage 29, 30 seraient également montés sur la deuxième partie 11b.The movable frame 11 consists of two parts 11a, 11b integral, therefore connected kinematically, respectively comprising the first opening 12 and the second opening 13. Instead of being integral and even monolithic with each other as in the examples illustrated, these two parts 11a, 11b could be separated and kinematically connected by a connection of the gear type or the like, preferably without play, in the manner for example of the embodiment shown in FIG. 7 of the application WO 2018/193365 . In this case, the assembly comprising the rigid bases 25, 26, the flexible guides 27, 28 and the rigid blocks 23, 24 would be mounted on, or monolithic with, the second part 11b and the adjustment elements 29, 30 would also be mounted on the second part 11b.

De nombreuses autres configurations que celles décrites ci-dessus et représentées aux figures sont possibles dans la présente invention. Par exemple, les ouvertures 12, 13 pourraient ne pas être coplanaires mais superposées. Plus de deux éléments d'entraînement et/ou plus de deux éléments d'arrêt pourraient être prévus. Par exemple, la paroi de la première ouverture 12 pourrait définir des éléments d'entraînement supplémentaires pour permettre un pré-armage du cadre mobile 11 ou de la partie 11a avant son déplacement conduisant à la libération de l'organe rotatif de blocage 15. Par ailleurs, les guidages flexibles 27, 28 pourraient être remplacés par un agencement de glissières et de ressorts de rappel.Many other configurations than those described above and shown in the figures are possible in the present invention. For example, the openings 12, 13 could not be coplanar but superimposed. More than two drive elements and / or more than two stop elements could be provided. For example, the wall of the first opening 12 could define additional drive elements to allow a pre-reinforcement of the movable frame 11 or of the part 11a before its displacement leading to the release of the rotary locking member 15. By elsewhere, the flexible guides 27, 28 could be replaced by an arrangement of slides and return springs.

Claims (15)

Dispositif de blocage (10) pour l'horlogerie comprenant : - une première partie mobile (11a) et une deuxième partie mobile (11b, 25-30) reliées cinématiquement entre elles, la première partie mobile (11a) comprenant un dispositif d'entraînement (16, 17), la deuxième partie mobile (11b, 25-30) comprenant un dispositif d'arrêt (19, 20), - un organe rotatif d'entraînement (14) destiné à tourner dans un unique sens et agencé pour coopérer avec le dispositif d'entraînement (16, 17) pour déplacer la première partie mobile (11a), et donc la deuxième partie mobile (11b), alternativement dans des sens opposés, et - un organe rotatif de blocage (15) destiné à être mis sous tension et agencé pour coopérer avec le dispositif d'arrêt (19, 20) pour être bloqué par la deuxième partie mobile (11b, 25-30) et libéré à des instants déterminés par lesdits déplacements de la deuxième partie mobile (11b, 25-30), caractérisé en ce que la deuxième partie mobile (11b, 25-30) comprend un dispositif de réglage (25-30) agencé pour agir sur le dispositif d'arrêt (19, 20) et permettant de régler lesdits instants déterminés.Locking device (10) for watchmaking comprising: - a first movable part (11a) and a second movable part (11b, 25-30) kinematically connected to each other, the first movable part (11a) comprising a drive device (16, 17), the second movable part (11b , 25-30) comprising a stop device (19, 20), - a rotary drive member (14) intended to rotate in a single direction and arranged to cooperate with the drive device (16, 17) to move the first movable part (11a), and therefore the second movable part (11b) ), alternately in opposite directions, and - a rotating blocking member (15) intended to be energized and arranged to cooperate with the stop device (19, 20) to be blocked by the second movable part (11b, 25-30) and released at times determined by said displacements of the second mobile part (11b, 25-30), characterized in that the second movable part (11b, 25-30) comprises an adjustment device (25-30) arranged to act on the stop device (19, 20) and making it possible to adjust said determined instants. Dispositif de blocage (10) selon la revendication 1, caractérisé en ce que le dispositif d'arrêt (19, 20) comprend des premier et deuxième éléments d'arrêt (19, 20) et en ce que le dispositif de réglage (25-30) est agencé pour agir sur au moins un des éléments d'arrêt.Locking device (10) according to Claim 1, characterized in that the stop device (19, 20) comprises first and second stop elements (19, 20) and in that the adjusting device (25- 30) is designed to act on at least one of the stop elements. Dispositif de blocage (10) selon la revendication 2, caractérisé en ce que le dispositif de réglage (25-30) est agencé pour agir sur chacun des éléments d'arrêt (19, 20).Locking device (10) according to Claim 2, characterized in that the adjusting device (25-30) is arranged to act on each of the stop elements (19, 20). Dispositif de blocage (10) selon la revendication 2 ou 3, caractérisé en ce que le dispositif de réglage (25-30) est agencé pour déplacer ledit un des éléments d'arrêt ou chacun des éléments d'arrêt (19, 20) sensiblement parallèlement à une surface d'arrêt (21, 22) de cet élément d'arrêt.Locking device (10) according to claim 2 or 3, characterized in that the adjusting device (25-30) is arranged to move said one of the stop elements or each of the stop elements (19, 20) substantially parallel to a stop surface (21, 22) of this stop element. Dispositif de blocage (10) selon l'une quelconque des revendications 1 à 4, caractérisé en ce que le dispositif de réglage (25-30) comprend au moins un guidage flexible (27, 28) couplant le dispositif d'arrêt (19, 20) au reste de la deuxième partie mobile (11b) et précontraint par un élément de réglage (29, 30).Locking device (10) according to any one of claims 1 to 4, characterized in that the adjustment device (25-30) comprises at least one flexible guide (27, 28) coupling the stop device (19, 20) to the rest of the second mobile part (11b) and prestressed by an adjusting element (29, 30). Dispositif de blocage (10) selon la revendication 5, caractérisé en ce que l'élément de réglage (29, 30) est un excentrique ou une vis de réglage.Locking device (10) according to Claim 5, characterized in that the adjusting element (29, 30) is an eccentric or an adjusting screw. Dispositif de blocage (10) selon l'une quelconque des revendications 1 à 6, caractérisé en ce que les première et deuxième parties mobiles (11a, 11b) sont solidaires l'une de l'autre.Locking device (10) according to any one of claims 1 to 6, characterized in that the first and second movable parts (11a, 11b) are integral with one another. Dispositif de blocage (10) selon l'une quelconque des revendications 1 à 7, caractérisé en ce que l'organe rotatif d'entraînement (14) est sous la forme d'un doigt ou d'une étoile.Locking device (10) according to any one of claims 1 to 7, characterized in that the rotary drive member (14) is in the form of a finger or a star. Dispositif de blocage (10) selon l'une quelconque des revendications 1 à 8, caractérisé en ce que l'organe rotatif de blocage (15) est sous la forme d'un doigt ou d'une étoile.Locking device (10) according to any one of claims 1 to 8, characterized in that the rotating locking member (15) is in the form of a finger or a star. Dispositif de blocage (10) selon l'une quelconque des revendications 1 à 9, caractérisé en ce que la première partie mobile (11a) présente une ouverture (12) recevant l'organe rotatif d'entraînement (14) et dont la paroi définit le dispositif d'entraînement (16, 17).Locking device (10) according to any one of claims 1 to 9, characterized in that the first movable part (11a) has a opening (12) receiving the rotary drive member (14) and the wall of which defines the drive device (16, 17). Dispositif de blocage (10) selon l'une quelconque des revendications 1 à 10, caractérisé en ce que la deuxième partie mobile (11b) présente une ouverture (13) recevant l'organe rotatif de blocage (15).Locking device (10) according to any one of claims 1 to 10, characterized in that the second movable part (11b) has an opening (13) receiving the rotary locking member (15). Dispositif de blocage (10) selon l'une quelconque des revendications 1 à 11, caractérisé en ce que le dispositif d'entraînement (16, 17) comprend des premier et deuxième éléments d'entraînement.Locking device (10) according to any one of claims 1 to 11, characterized in that the driving device (16, 17) comprises first and second driving elements. Dispositif de blocage (10) selon l'une quelconque des revendications 1 à 12, caractérisé en ce que les première et deuxième parties mobiles (11a, 11b) sont chacune mobiles en rotation.Locking device (10) according to any one of claims 1 to 12, characterized in that the first and second movable parts (11a, 11b) are each movable in rotation. Dispositif de blocage (10) selon l'une quelconque des revendications 1 à 12, caractérisé en ce que les première et deuxième parties mobiles (11a, 11b) sont chacune mobiles en translation.Locking device (10) according to any one of claims 1 to 12, characterized in that the first and second movable parts (11a, 11b) are each movable in translation. Pièce d'horlogerie comprenant un dispositif de blocage (10) selon l'une quelconque des revendications 1 à 14.Timepiece comprising a locking device (10) according to any one of claims 1 to 14.
EP20152932.8A 2020-01-21 2020-01-21 Locking device for timepieces Active EP3855255B1 (en)

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Application Number Priority Date Filing Date Title
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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2068210A2 (en) * 2007-12-04 2009-06-10 Chronode SA Trigger device
CH704331A1 (en) * 2011-01-13 2012-07-13 Greubel Forsey S A Timepiece.
WO2018193366A1 (en) 2017-04-18 2018-10-25 Patek Philippe Sa Geneve Locking device for a timepiece

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2068210A2 (en) * 2007-12-04 2009-06-10 Chronode SA Trigger device
CH704331A1 (en) * 2011-01-13 2012-07-13 Greubel Forsey S A Timepiece.
WO2018193366A1 (en) 2017-04-18 2018-10-25 Patek Philippe Sa Geneve Locking device for a timepiece
WO2018193365A1 (en) 2017-04-18 2018-10-25 Patek Philippe Sa Geneve Locking device for a timepiece

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