EP2329325B1 - Display mechanism for a timepiece used to display or not the current time - Google Patents

Display mechanism for a timepiece used to display or not the current time Download PDF

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Publication number
EP2329325B1
EP2329325B1 EP09809324.8A EP09809324A EP2329325B1 EP 2329325 B1 EP2329325 B1 EP 2329325B1 EP 09809324 A EP09809324 A EP 09809324A EP 2329325 B1 EP2329325 B1 EP 2329325B1
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EP
European Patent Office
Prior art keywords
additional
lever
display
actuating device
cam
Prior art date
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Application number
EP09809324.8A
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German (de)
French (fr)
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EP2329325A1 (en
Inventor
Jean-Marc Wiederrecht
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La Montre Hermes SA
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La Montre Hermes SA
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Priority to EP09809324.8A priority Critical patent/EP2329325B1/en
Publication of EP2329325A1 publication Critical patent/EP2329325A1/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
    • G04B19/06—Dials
    • G04B19/08—Geometrical arrangement of the graduations
    • 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
    • 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

Definitions

  • the present invention relates to a timepiece display mechanism for being driven from a base wheel of a watch movement for controlling the movements of a display member of a time indication or the operation of the timepiece.
  • the mechanism according to the invention comprises a cam having a periphery of predefined shape and intended to be driven by the base wheel, a lever intended to be pivotally mounted, with reference to a frame element of the watch movement, between a abutment position, associated with an indication position of the display member, and a waiting position, associated with a predefined alternative position of the display member.
  • the lever carries a probe intended to cooperate with the periphery of the cam to define the stop position.
  • the lever further carries a rake arranged in engagement with a pinion for driving the display member, elastic means exerting a force on the lever to tend to position it in its abutment position.
  • the present invention also relates to a watch movement and a timepiece provided with such a mechanism.
  • These parts comprise a movement arranged to drive an hour hand and a minute hand, retrograde on two respective sectors arranged opposite one another, so that they indicate the current time at the request of a user.
  • some of the known parts comprise a pusher arranged to act on two levers each carrying a rake in engagement with a pinion carrying one of the needles.
  • these levers are arranged in a waiting position associated with a rest position of the needles, typically at noon, under the effect of the action of springs.
  • the pusher is actuated by the user, the levers pivot, each driving the corresponding gear, each pinion being engaged with a second rake carried by a second lever, the latter also carrying a probe intended to cooperate with the periphery of a cam driven in rotation to the rhythm of the minutes, respectively to the rhythm of the hours.
  • the associated needle indicates the minutes, respectively the hours, of the current time.
  • these pieces generally had a square, accessible through an opening in the dial, to proceed to the time setting by means of a key.
  • the latter must be manipulated by the user to adjust the time while he must at the same time press the pusher to view the effect of its correction, which is impractical.
  • the corresponding timepiece displays the time at the request of the user, by pressing a pushbutton.
  • the main object of the present invention is to propose a watch movement which makes it possible to produce a timepiece offering an original display, notably a mode of operation in which the time is not displayed, in the spirit of the pieces of the watch.
  • prior art described above while offering the user the possibility of having a time display that is almost conventional.
  • the display members can be positioned in either of their possible positions, namely indicating or waiting, stably, that is to say without The user needs to maintain pressure on a controller to maintain the current time display.
  • the user has the choice between two stable display modes of the corresponding timepiece, a first in which the display members indicate the current time and, a second in which they are arranged in a predefined alternative position.
  • a particular chronograph mechanism is described in the patent application EP 1 475 681 A1 , the latter being arranged to control a display counter of measured fractions of a second.
  • a cam is used to count the fractions of a second, while a probe is arranged to cooperate with the periphery of the latter and to control the displacements of the associated display member, only when the measurement of a time is interrupted, to limit the energy needs of the chronograph mechanism when it is engaged.
  • the position of the probe is controlled by a column wheel simultaneously controlling the operation of the chronograph mechanism.
  • the cam is driven only when the measurement of a time is engaged, but also it must necessarily be stopped to allow the display, at a given time, the information it carries.
  • the display mechanism according to the present invention stems from a very different approach to that which led to the chronograph mechanism just described.
  • a main purpose of the present invention is to allow or not, at the request of the user, the display of a permanent information relating to the time or the operation of the timepiece, without the value of this information is not affected by the fact that it is displayed.
  • the display mechanism according to the invention is characterized in that the cam is intended to be driven permanently, independently of the positions of the movable control member and the lever.
  • the mechanism comprises a rocker intended to be pivotally mounted, with reference to a frame element of the watch movement, and arranged to cooperate, on the one hand, with the control member and, on the other hand, with the lever for neutralizing the elastic means when the control member is in its standby position.
  • control member may be of rotary type, for example a column wheel, the rocker having a spout arranged to cooperate with the columns to act directly, by pivoting, on a contact surface of the lever and position it in his waiting position.
  • the mechanism according to the invention has a simple structure, mounting and settings Simple, offering great security and reliability.
  • the predefined alternative position may be a fixed position, defined by the manufacturer during the assembly of the timepiece. Alternatively, this predefined position may be associated with the indication by the display member of the value of an additional quantity relating to the time or operation of the timepiece.
  • the figures 1 , 3 and 4 represent, in the same simplified plan view, a watch movement comprising a display mechanism according to a general embodiment of the invention, respectively, in first, second and third configurations.
  • the figure 2 allows better understand the interactions between certain components of the mechanism that will be described later.
  • the movement comprises a plate (not visible) carrying various conventional components including a barrel, a work train and a mechanical resonator not shown.
  • the movement is visible by its dial side in the figures, the display mechanism being typically disposed on this side of the movement.
  • the display mechanism according to the present invention can be assembled as an integral part of the movement or be added on a basic movement in the form of a module, as shown in the embodiment which will be described below. .
  • the display mechanism may comprise an additional plate (not visible in the figures) made integral with the main plate of the basic movement.
  • the additional plate has a number of holes and openings to allow access to components of the basic movement such as the floor 1 for example.
  • the display mechanism comprises a return 3 arranged in engagement with a pinion 5 of the roadway 1 and also in engagement with a pinion (not visible) integral with a minute cam 7.
  • the corresponding gear is arranged such that the minute cam 7 makes a complete turn on itself in one hour.
  • the display mechanism also comprises a minute lever pivotally mounted on the additional plate via an axis located near a first end thereof.
  • the lever carries a rake 12 (FIG. figure 2 ), at its second end, arranged in engagement with a minute gear 13 ( figure 2 ), rotatably mounted on the roadway 1 and intended to carry a minute display member.
  • the lever 10 carries also a probe 14, in its middle portion. The latter is intended to cooperate with the minute cam 7 so as to position the pinion minutes, through the rake 12, in a position such that the corresponding display member indicates the minutes.
  • the mechanism further comprises a long spring 15 cooperating with a finger 16 mounted on the lever 10 to apply on the latter a force tending to press the probe 14 against the periphery of the cam 7.
  • the minute lever 10 has a contact surface 17, at its first end 11, arranged to cooperate with a first end 18 of a J-shaped latch 19, and pivotally mounted on the additional plate by means of a span screw 20 disposed between the two arms of J.
  • the second end 22 of the latch has the shape of a spout arranged to cooperate with the columns 23 of a column wheel 24 mounted to rotate on the additional plate.
  • the second end 22 of the flip-flop 19 when the second end 22 of the flip-flop 19 is located in a void between two columns 23, its first end 18 exerts little or no pressure on the contact area of the first end 11 of the minute lever. The latter is then subjected to the action of the long spring 15 tending to maintain the probe 14 in abutment against the minute cam 7, so that the minute display member indicates the minutes of the current time (configurations shown on FIG. the figures 1 and 3 respectively at 10:10 and 7:30).
  • the feeler 14 is moved away from the periphery of the minute cam 7 and the minutes lever is placed in a predefined alternative position (shown in FIG. figure 4 here, an arbitrary position of the hands at 10:10 has been illustrated) which is in particular a function of the amplitude of rotation of the rocker 19 when it passes from one position to the other.
  • the predefined position is such that the free end of the probe is located at a distance from the center of the cam 7 greater than the largest radius of the latter.
  • the display member is in a rest position which can be chosen by the manufacturer of the watch movement, at the time of indexing of the display member, according to his preferences or needs.
  • the column wheel 24 is actuated by means of an actuator having the form of a corrector 26 which can be manipulated by a user from outside the corresponding timepiece, using a conventional external device , possibly via a control lever 25, shown by way of nonlimiting illustration.
  • the corrector is preferably mounted free in translation between two positions, a recessed and a rest in which it is maintained, by default, by a corrector spring 27 cooperating with a recess 28 formed in the corrector.
  • the corrector carries a tooth 30 arranged to act on the column wheel 24 when the corrector is depressed and rotate a half-step and, therefore, to rotate the rocker 19 from one position to another.
  • the tooth 30 is preferably elastic to be erased during the return of the corrector in its rest position, under the effect of the action of the corrector spring 27.
  • the display mechanism according to the invention comprises a device similar to that just described, for the purpose of controlling the movements of a display member hours.
  • a reference 33 similar to a conventional timer is provided to ensure the kinematic connection between the pinion 5 of the roadway 1 and a cam of hours 37, through its pinion 40 meshing with a wheel 41 integral with the cam 37 in rotation so that the cam 37 turns on itself in twelve hours.
  • the display mechanism comprises an hour lever 50 pivotally mounted on the additional plate via an axis located near a first end 51.
  • the lever 50 carries a rake 52, at its second end, arranged in engagement with a pinion hours 53, rotatably mounted on the roadway 1, and a feeler 54, in its middle portion.
  • the hour gear 53 serves the function of a conventional hour wheel, that is to say it is intended to carry a display member hours.
  • the feeler 54 is intended to cooperate with the hour cam 37 so as to position the hour gear, by means of the rake 52, in a position such that the corresponding display member indicates the hours.
  • the mechanism further comprises a long spring 55 cooperating with a finger 56 mounted on the lever 50 to apply on the latter a force tending to press the feeler 54 against the periphery of the cam 37.
  • the hour lever 50 has a contact surface 57, at its first end 51, arranged to cooperate with a first end 58 of a latch 59 hours, substantially J-shaped and pivotally mounted on the additional plate by means of a span screw 60 disposed between the two arms of the J.
  • the second end 62 of the rocker has the shape of a spout arranged to cooperate with the columns 63 of an additional column wheel 64 rotatably mounted on the additional plate.
  • the feeler 54 is spaced from the periphery of the hour cam 37 and the hour lever is placed in a predefined alternative position (shown in FIG. figure 4 ) which is in particular a function of the amplitude of rotation of the rocker 59 as it passes from one position to the other.
  • the predefined position is such that the free end of the probe is located at a distance from the center of the cam 37 greater than the largest radius of the latter.
  • the hour display member is in a rest position which can be chosen by the manufacturer of the watch movement, at the time of indexing of the display member, according to his preferences or his needs .
  • the column wheel 64 is actuated by the corrector 26 which carries an additional tooth 70 arranged to act on the column wheel 64 when the corrector is depressed and to rotate it by half a step and, consequently, to rotate the rocker 59 from one position to another.
  • the tooth 70 is preferably elastic, as is the tooth 30, to fade when the corrector returns to its rest position, under the effect of the action of the corrector spring 27.
  • a jumper 71 is also provided to define the stable angular positions of the column wheel 64.
  • the shape of the periphery of the cams 7, 37 defines the angle traveled by each of the display members when the movement is in the time display mode.
  • the display members move with respect to corresponding graduated sectors.
  • the display members traverse graduated sectors extending at an angle of 360 °.
  • the display of the current time is done in an almost conventional manner, except that each of the display members has a retrograde movement. after having gone through 360 °. Thanks to these characteristics, the appearance of the timepiece can be absolutely conventional, especially at the level of its dial, as opposed to timepieces comprising retrograde display organs moving opposite graduated sectors extending on an angle less than 360 °.
  • the display members may be arranged, for example, at noon or at ten past ten, which is the position typically used to photograph watch models. It should be noted that, because of the particular construction of the mechanism according to the invention, the display members can be completely decoupled from one another and occupy relative rest positions they never occupy when the timepiece is in the current time display mode, such as the two superimposed bodies pointing exactly the six o'clock position of a conventional dial.
  • the display mechanism that has just been described has the advantage of providing an original and discreet display with a very high accuracy and reliability of operation.
  • the figures 5 and 6 show an alternative embodiment of the main embodiment which has just been described, according to which the display module is further intended to display additional information, in particular here the date.
  • the figures 5 and 6 have a different orientation from that used for the previous figures.
  • a mechanism similar in structure and operation to that of the indication of minutes and current hours is provided for controlling a date display member.
  • the display mechanism described above further comprises a date lever 80 pivotally mounted on the additional plate via an axis located near a first of its ends 81.
  • the lever 80 carries a rake 82, at its second end, arranged in engagement with a date pinion 83, rotatably mounted on the additional plate and intended to carry a date display member.
  • the lever 80 also carries a probe 84, in its median portion. The latter is intended to cooperate, on demand, with a date cam 86 so as to position the date pinion, via the rake 82, in a position such that the corresponding display member indicates the value of the date date in progress.
  • the mechanism further comprises a prestressed spring spring 88, whose first end is integral with the additional plate and the second end at least indirectly integral with the date pinion 83, to tend to rotate the latter in the anti-clockwise direction of rotation. (in the figures) and apply the probe 84 against the periphery of the date cam 86.
  • the probe is made here, without limitation, in the form of an extra thickness provided on the lever 80, so that it can be arranged at a lower level than that of the cam 86.
  • the mechanical properties of the lever can be adapted to the stresses it must undergo to fulfill its function.
  • the date lever 80 has a contact surface 89, at its first end 81, arranged to cooperate with an extension 90 carried here by the minute latch 19. As a result, the date display is activated. or disabled simultaneously with the current time display.
  • the figure 5 illustrates the motion configuration when the display is active while the figure 6 illustrates that corresponding to the suspension of the display, that is to say when the display members are placed in their respective alternative positions.
  • the date cam 86 is driven in a conventional manner from a date wheel 92, itself driven from the finishing gear train, via an internal toothing 93, to advance one step per day.
  • the date wheel also includes an external toothing 94 arranged to advance a step per day a star 95 carrying a pinion 96 arranged in engagement with a wheel 98 integral with the date cam 86.
  • a jumper 97 is provided to correctly position the star 95.
  • the mechanism can be constructed in the form of an additional module for enriching a basic watchmaker's caliber or be directly integrated into a watch movement.
  • additional and non-coaxial mobiles may be provided for carrying the display members.
  • feelers 14, 54 have been shown in an optional configuration in the figures, more precisely they are rotatably mounted on the corresponding lever while they bear the fingers 16, 56 on which the right springs 15, 55 act.
  • Such configuration providing security for the case where the user would perform a time setting by rotating the cams 7, 37 in the counter-clockwise direction in the figures, is conventional and should not be considered as being limiting.
  • a curved recess 75 in the lever 50 hours without limitation, to allow the passage of a shaft for carrying a second hand 76, as it appears from the figure 3 .
  • the mechanism comprises means additional so that at least one of the levers 10, 50 has a second stop position, associated with the rest position of the corresponding display member, in which the latter can display an additional quantity relating to time or operation of the timepiece.
  • the display of additional information can be implemented in relation to information other than the date.
  • other quantities such as the day of the week or the month, as an alternative or in addition to the date display as described.
  • their respective mechanisms can be controlled, respectively, from the display mechanisms of the hours and minutes.

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Description

Domaine techniqueTechnical area

La présente invention concerne un mécanisme d'affichage pour pièce d'horlogerie destiné à être entraîné à partir d'une roue de base d'un mouvement horloger pour commander les déplacements d'un organe d'affichage d'une indication relative au temps ou au fonctionnement de la pièce d'horlogerie. En particulier, le mécanisme selon l'invention comporte une came présentant une périphérie de forme prédéfinie et destinée à être entraînée par la roue de base, un levier destiné à être monté pivotant, en référence à un élément de bâti du mouvement horloger, entre une position de butée, associée à une position d'indication de l'organe d'affichage, et une position d'attente, associée à une position alternative prédéfinie de l'organe d'affichage. Le levier porte un palpeur destiné à coopérer avec la périphérie de la came pour définir la position de butée. Le levier porte en outre un râteau agencé en prise avec un pignon destiné à entraîner l'organe d'affichage, des moyens élastiques exerçant une force sur le levier pour tendre à le positionner dans sa position de butée.The present invention relates to a timepiece display mechanism for being driven from a base wheel of a watch movement for controlling the movements of a display member of a time indication or the operation of the timepiece. In particular, the mechanism according to the invention comprises a cam having a periphery of predefined shape and intended to be driven by the base wheel, a lever intended to be pivotally mounted, with reference to a frame element of the watch movement, between a abutment position, associated with an indication position of the display member, and a waiting position, associated with a predefined alternative position of the display member. The lever carries a probe intended to cooperate with the periphery of the cam to define the stop position. The lever further carries a rake arranged in engagement with a pinion for driving the display member, elastic means exerting a force on the lever to tend to position it in its abutment position.

La présente invention concerne également un mouvement horloger et une pièce d'horlogerie munis d'un tel mécanisme.The present invention also relates to a watch movement and a timepiece provided with such a mechanism.

Etat de la techniqueState of the art

On connaît des pièces appelées communément "Bras en l'air" qui ont été produites à partir de la fin du 18ème siècle et jusqu'au début du 19ème siècle. Seuls quelques dizaines d'exemplaires sont répertoriées aujourd'hui, ces pièces n'ayant pas connu un très grand succès.There are known pieces commonly known as "Arms in the air" that were produced from the late 18 th century until the beginning of the 19 th century. Only a few dozen copies are listed today, these pieces have not been very successful.

Ces pièces comportent un mouvement agencé pour entraîner une aiguille des heures et une aiguille des minutes, de manière rétrograde sur deux secteurs respectifs disposés en regard l'un de l'autre, de telle façon qu'elles indiquent l'heure courante à la demande d'un utilisateur.These parts comprise a movement arranged to drive an hour hand and a minute hand, retrograde on two respective sectors arranged opposite one another, so that they indicate the current time at the request of a user.

Dans ce but, certaines des pièces connues comprennent un poussoir agencé pour agir sur deux leviers portant chacun un râteau en prise avec un pignon portant l'une des aiguilles. Par défaut, ces leviers sont disposés dans une position d'attente associée à une position de repos des aiguilles, typiquement à midi, sous l'effet de l'action de ressorts. Lorsque le poussoir est actionné par l'utilisateur, les leviers pivotent en entraînant chacun le pignon correspondant, chaque pignon étant en prise avec un second râteau porté par un second levier, ce dernier portant également un palpeur destiné à coopérer avec la périphérie d'une came entraînée en rotation au rythme des minutes, respectivement au rythme des heures. Lorsque chaque palpeur est disposé en butée sur la périphérie de la came correspondante, l'aiguille associée indique les minutes, respectivement les heures, de l'heure courante.For this purpose, some of the known parts comprise a pusher arranged to act on two levers each carrying a rake in engagement with a pinion carrying one of the needles. By default, these levers are arranged in a waiting position associated with a rest position of the needles, typically at noon, under the effect of the action of springs. When the pusher is actuated by the user, the levers pivot, each driving the corresponding gear, each pinion being engaged with a second rake carried by a second lever, the latter also carrying a probe intended to cooperate with the periphery of a cam driven in rotation to the rhythm of the minutes, respectively to the rhythm of the hours. When each probe is disposed in abutment on the periphery of the corresponding cam, the associated needle indicates the minutes, respectively the hours, of the current time.

Lorsque l'utilisateur libère le poussoir, les râteaux reviennent en place sous l'effet de l'action des ressorts, les aiguilles revenant à midi.When the user releases the pusher, the rakes return in place under the effect of the action of the springs, the needles returning at noon.

Ainsi, un inconvénient principal de ces pièces, découlant directement de leur finalité, est qu'elles ne permettent de lire l'heure qu'à la demande.Thus, a major disadvantage of these parts, resulting directly from their purpose, is that they only read the time at the request.

Par ailleurs, ces pièces présentaient généralement un carré, accessible au travers d'une ouverture ménagée dans le cadran, pour procéder à la mise à l'heure au moyen d'une clé. Cette dernière doit être manipulée par l'utilisateur pour ajuster l'heure tandis qu'il doit en même temps presser sur le poussoir pour visualiser l'effet de sa correction, ce qui se révèle peu pratique.In addition, these pieces generally had a square, accessible through an opening in the dial, to proceed to the time setting by means of a key. The latter must be manipulated by the user to adjust the time while he must at the same time press the pusher to view the effect of its correction, which is impractical.

Un mouvement horloger basé sur un principe d'affichage similaire, sur 360 degrés, a été commercialisé plus récemment par la société Frank Müller et fait l'objet de la demande de brevet EP 1 936 448 A1 . La pièce d'horlogerie correspondante affiche l'heure à la demande de l'utilisateur, par pression sur un poussoir.A watch movement based on a similar display principle, 360 degrees, was marketed more recently by the company Frank Müller and is the subject of the patent application EP 1 936 448 A1 . The corresponding timepiece displays the time at the request of the user, by pressing a pushbutton.

Divulgation de l'inventionDisclosure of the invention

La présente invention a pour but principal de proposer un mouvement horloger qui permette de réaliser une pièce d'horlogerie offrant un affichage original, notamment un mode de fonctionnement dans lequel l'heure n'est pas affichée, dans l'esprit des pièces de l'art antérieur décrites ci-dessus, tout en offrant à l'utilisateur la possibilité de disposer d'un affichage de l'heure qui soit quasiment conventionnel.The main object of the present invention is to propose a watch movement which makes it possible to produce a timepiece offering an original display, notably a mode of operation in which the time is not displayed, in the spirit of the pieces of the watch. prior art described above, while offering the user the possibility of having a time display that is almost conventional.

A cet effet, le mécanisme selon l'invention comporte les caractéristiques divulguées dans les revendications annexées.For this purpose, the mechanism according to the invention comprises the features disclosed in the appended claims.

Grâce à ces caractéristiques, les organes d'affichage peuvent être positionnés dans l'une et l'autre de leurs positions possibles, à savoir d'indication ou d'attente, de manière stable, c'est-à-dire sans que l'utilisateur n'ait besoin de maintenir une pression sur un organe de commande pour conserver l'affichage de l'heure courante.Thanks to these characteristics, the display members can be positioned in either of their possible positions, namely indicating or waiting, stably, that is to say without The user needs to maintain pressure on a controller to maintain the current time display.

S'il peut sembler contradictoire a priori de regrouper ces deux modes de fonctionnement dans une même pièce d'horlogerie, cela permet de rendre plus attractives les pièces selon la présente invention en référence aux inconvénients des pièces connues de l'art antérieur mentionnés précédemment, tout en offrant l'originalité de ces dernières.While it may seem contradictory a priori to combine these two modes of operation in the same timepiece, it makes more attractive parts according to the present invention with reference to the disadvantages of known parts of the prior art mentioned above, while offering the originality of the latter.

Ainsi, l'ingéniosité de la Demanderesse a permis d'apporter à ces pièces connues depuis plus de deux siècles les améliorations qui leur ont fait défaut jusqu'ici et ont sans doute conduit à leur quasi-abandon par les fabricants horlogers.Thus, the ingenuity of the Applicant has made it possible to bring to these pieces known for more than two centuries the improvements that have been lacking so far and have probably led to their near-abandonment by watch manufacturers.

Grâce aux caractéristiques de l'invention citées ci-dessus, l'utilisateur a le choix entre deux modes d'affichage stables de la pièce d'horlogerie correspondante, un premier dans lequel les organes d'affichage indiquent l'heure courante et, un second dans lequel ils sont disposés dans une position alternative prédéfinie.Thanks to the features of the invention mentioned above, the user has the choice between two stable display modes of the corresponding timepiece, a first in which the display members indicate the current time and, a second in which they are arranged in a predefined alternative position.

Un mécanisme de chronographe particulier est décrit dans la demande de brevet EP 1 475 681 A1 , celui-ci étant agencé pour commander un compteur d'affichage des fractions de seconde mesurées. Une came est mise en oeuvre pour assurer le comptage des fractions de seconde, tandis qu'un palpeur est agencé pour coopérer avec la périphérie de cette dernière et commander les déplacements de l'organe d'affichage associé, uniquement lorsque la mesure d'un temps est interrompue, pour limiter les besoins énergétiques du mécanisme de chronographe lorsqu'il est enclenché. Toutefois, la position du palpeur est commandée par une roue à colonnes commandant simultanément le fonctionnement du mécanisme de chronographe. Ainsi, non seulement la came n'est entraînée que lorsque la mesure d'un temps est enclenchée, mais en outre elle doit nécessairement être stoppée pour permettre l'affichage, à un instant donné, de l'information qu'elle porte.A particular chronograph mechanism is described in the patent application EP 1 475 681 A1 , the latter being arranged to control a display counter of measured fractions of a second. A cam is used to count the fractions of a second, while a probe is arranged to cooperate with the periphery of the latter and to control the displacements of the associated display member, only when the measurement of a time is interrupted, to limit the energy needs of the chronograph mechanism when it is engaged. However, the position of the probe is controlled by a column wheel simultaneously controlling the operation of the chronograph mechanism. Thus, not only the cam is driven only when the measurement of a time is engaged, but also it must necessarily be stopped to allow the display, at a given time, the information it carries.

Le mécanisme d'affichage selon la présente invention découle d'une démarche très différente de celle ayant conduit au mécanisme de chronographe qui vient d'être décrit.The display mechanism according to the present invention stems from a very different approach to that which led to the chronograph mechanism just described.

En effet, un but principal de la présente invention est de permettre ou non, à la demande de l'utilisateur, l'affichage d'une information permanente relative au temps ou au fonctionnement de la pièce d'horlogerie, sans que la valeur de cette information ne soit affectée par le fait qu'elle est affichée.Indeed, a main purpose of the present invention is to allow or not, at the request of the user, the display of a permanent information relating to the time or the operation of the timepiece, without the value of this information is not affected by the fact that it is displayed.

Ainsi, le mécanisme d'affichage selon l'invention est caractérisé par le fait que la came est destinée à être entraînée en permanence, indépendamment des positions de l'organe de commande mobile et du levier.Thus, the display mechanism according to the invention is characterized in that the cam is intended to be driven permanently, independently of the positions of the movable control member and the lever.

De manière préférée, le mécanisme comporte une bascule destinée à être montée pivotante, en référence à un élément de bâti du mouvement horloger, et agencée pour coopérer, d'une part, avec l'organe de commande et, d'autre part, avec le levier pour neutraliser les moyens élastiques lorsque l'organe de commande est dans sa position d'attente.Preferably, the mechanism comprises a rocker intended to be pivotally mounted, with reference to a frame element of the watch movement, and arranged to cooperate, on the one hand, with the control member and, on the other hand, with the lever for neutralizing the elastic means when the control member is in its standby position.

Préférablement, l'organe de commande peut être de type rotatif, comme par exemple une roue à colonnes, la bascule présentant un bec agencé pour coopérer avec les colonnes pour agir directement, par pivotement, sur une surface de contact du levier et le positionner dans sa position d'attente.Preferably, the control member may be of rotary type, for example a column wheel, the rocker having a spout arranged to cooperate with the columns to act directly, by pivoting, on a contact surface of the lever and position it in his waiting position.

Grâce à ces caractéristiques supplémentaires, le mécanisme selon l'invention présente une structure simple, au montage et aux réglages simples, offrant une grande sécurité et une grande fiabilité de fonctionnement.With these additional features, the mechanism according to the invention has a simple structure, mounting and settings Simple, offering great security and reliability.

La position alternative prédéfinie peut être une position fixe, définie par le constructeur lors de l'assemblage de la pièce d'horlogerie. De manière alternative, cette position prédéfinie peut être associée à l'indication par l'organe d'affichage de la valeur d'une grandeur supplémentaire relative au temps ou au fonctionnement de la pièce d'horlogerie.The predefined alternative position may be a fixed position, defined by the manufacturer during the assembly of the timepiece. Alternatively, this predefined position may be associated with the indication by the display member of the value of an additional quantity relating to the time or operation of the timepiece.

Brève description des dessinsBrief description of the drawings

D'autres caractéristiques et avantages de la présente invention apparaîtront plus clairement à la lecture de la description détaillée d'un mode de réalisation préféré qui suit, faite en référence aux dessins annexés donnés à titre d'exemples non limitatifs et dans lesquels:

  • la figure 1 représente une vue en plan simplifiée d'un mode général de réalisation d'un mouvement horloger comportant un mécanisme d'affichage selon l'invention, dans une première configuration;
  • la figure 2 représente une vue en perspective d'un détail de construction du mécanisme de la figure 1, prise dans la direction de la flèche II de la figure 1;
  • la figure 3 représente une vue similaire du mode de réalisation de la figure 1, dans une seconde configuration;
  • la figure 4 représente une vue similaire du mode de réalisation de la figure 1, dans une troisième configuration
  • la figure 5 représente une vue en plan simplifiée d'une variante de réalisation du mouvement horloger de la figure 1, dans une première configuration, et
  • la figure 6 représente une vue similaire de la variante de réalisation de la figure 5, dans une seconde configuration.
Other features and advantages of the present invention will appear more clearly on reading the detailed description of a preferred embodiment which follows, made with reference to the accompanying drawings given by way of non-limiting examples and in which:
  • the figure 1 represents a simplified plan view of a general embodiment of a watch movement comprising a display mechanism according to the invention, in a first configuration;
  • the figure 2 represents a perspective view of a construction detail of the mechanism of the figure 1 , taken in the direction of arrow II of the figure 1 ;
  • the figure 3 represents a similar view of the embodiment of the figure 1 in a second configuration;
  • the figure 4 represents a similar view of the embodiment of the figure 1 in a third configuration
  • the figure 5 represents a simplified plan view of an alternative embodiment of the watch movement of the figure 1 , in a first configuration, and
  • the figure 6 represents a similar view of the variant embodiment of the figure 5 in a second configuration.

Mode(s) de réalisation de l'inventionMode (s) of realization of the invention

Les figures 1, 3 et 4 représentent, dans une même vue en plan simplifiée, un mouvement horloger comportant un mécanisme d'affichage selon un mode général de réalisation de l'invention, respectivement, dans des première, seconde et troisième configurations. La figure 2 permet de mieux comprendre les interactions existant entre certains composants du mécanisme qui seront décrits plus loin.The figures 1 , 3 and 4 represent, in the same simplified plan view, a watch movement comprising a display mechanism according to a general embodiment of the invention, respectively, in first, second and third configurations. The figure 2 allows better understand the interactions between certain components of the mechanism that will be described later.

Certains éléments structurels conventionnels du mouvement n'ayant pas de rapport direct avec l'invention n'ont pas été représentés sur les figures, dans un souci de clarté.Some conventional structural elements of the movement not directly related to the invention have not been shown in the figures for the sake of clarity.

Le mouvement comprend une platine (non visible) portant divers composants conventionnels dont notamment un barillet, un rouage de finissage et un résonateur mécanique non représentés.The movement comprises a plate (not visible) carrying various conventional components including a barrel, a work train and a mechanical resonator not shown.

Le mouvement est visible par son côté cadran sur les figures, le mécanisme d'affichage étant typiquement disposé de ce côté du mouvement.The movement is visible by its dial side in the figures, the display mechanism being typically disposed on this side of the movement.

Le mécanisme d'affichage selon la présente invention peut être assemblé comme une partie intégrante du mouvement ou être ajouté sur un mouvement de base sous la forme d'un module, tel que représenté dans l'exemple de réalisation qui va être décrit ci-dessous.The display mechanism according to the present invention can be assembled as an integral part of the movement or be added on a basic movement in the form of a module, as shown in the embodiment which will be described below. .

Ainsi, le mécanisme d'affichage peut comporter une platine supplémentaire (non visible sur les figures) rendue solidaire de la platine principale du mouvement de base.Thus, the display mechanism may comprise an additional plate (not visible in the figures) made integral with the main plate of the basic movement.

Dans ce cas, la platine supplémentaire comporte un certain nombre de trous et ouvertures pour permettre un accès à des composants du mouvement de base comme la chaussée 1 par exemple.In this case, the additional plate has a number of holes and openings to allow access to components of the basic movement such as the floor 1 for example.

Dans la partie supérieure des figures 1, 3 et 4, il apparaît que le mécanisme d'affichage comprend un renvoi 3 agencé en prise avec un pignon 5 de la chaussée 1 et également en prise avec un pignon (non visible) solidaire d'une came des minutes 7. L'engrenage correspondant est agencé de telle manière que la came des minutes 7 fait un tour complet sur elle-même en une heure.In the upper part of figures 1 , 3 and 4 , it appears that the display mechanism comprises a return 3 arranged in engagement with a pinion 5 of the roadway 1 and also in engagement with a pinion (not visible) integral with a minute cam 7. The corresponding gear is arranged such that the minute cam 7 makes a complete turn on itself in one hour.

Le mécanisme d'affichage comporte également un levier des minutes 10 monté pivotant sur la platine supplémentaire par l'intermédiaire d'un axe situé à proximité d'une première de ses extrémités 11. Le levier 10 porte un râteau 12 (figure 2), à sa seconde extrémité, agencé en prise avec un pignon des minutes 13 (figure 2), monté libre en rotation sur la chaussée 1 et destiné à porter un organe d'affichage des minutes. Le levier 10 porte également un palpeur 14, dans sa portion médiane. Ce dernier est destiné à coopérer avec la came des minutes 7 de manière à positionner le
pignon des minutes, par l'intermédiaire du râteau 12, dans une position telle que l'organe d'affichage correspondant indique les minutes. Le mécanisme comprend en outre un ressort long 15 coopérant avec un doigt 16 monté sur le levier 10 pour appliquer sur ce dernier une force tendant à plaquer le palpeur 14 contre la périphérie de la came 7.The display mechanism also comprises a minute lever pivotally mounted on the additional plate via an axis located near a first end thereof. The lever carries a rake 12 (FIG. figure 2 ), at its second end, arranged in engagement with a minute gear 13 ( figure 2 ), rotatably mounted on the roadway 1 and intended to carry a minute display member. The lever 10 carries also a probe 14, in its middle portion. The latter is intended to cooperate with the minute cam 7 so as to position the
pinion minutes, through the rake 12, in a position such that the corresponding display member indicates the minutes. The mechanism further comprises a long spring 15 cooperating with a finger 16 mounted on the lever 10 to apply on the latter a force tending to press the probe 14 against the periphery of the cam 7.

Par ailleurs, le levier des minutes 10 présente une surface de contact 17, au niveau de sa première extrémité 11, agencée pour coopérer avec une première extrémité 18 d'une bascule des minutes 19, sensiblement en forme de J et, montée pivotante sur la platine supplémentaire au moyen d'une vis à portée 20 disposée entre les deux bras du J.Furthermore, the minute lever 10 has a contact surface 17, at its first end 11, arranged to cooperate with a first end 18 of a J-shaped latch 19, and pivotally mounted on the additional plate by means of a span screw 20 disposed between the two arms of J.

La seconde extrémité 22 de la bascule présente la forme d'un bec agencé pour coopérer avec les colonnes 23 d'une roue à colonnes 24 montée à rotation sur la platine supplémentaire. Ainsi, lorsque la seconde extrémité 22 de la bascule 19 est située dans un vide entre deux colonnes 23, sa première extrémité 18 n'exerce pas ou peu de pression sur la zone de contact de la première extrémité 11 du levier des minutes. Ce dernier est alors soumis à l'action du ressort long 15 tendant à maintenir le palpeur 14 en appui contre la came des minutes 7, pour que l'organe d'affichage des minutes indique les minutes de l'heure courante (configurations représentées sur les figures 1 et 3, respectivement à 10h10 et à 7h30).The second end 22 of the latch has the shape of a spout arranged to cooperate with the columns 23 of a column wheel 24 mounted to rotate on the additional plate. Thus, when the second end 22 of the flip-flop 19 is located in a void between two columns 23, its first end 18 exerts little or no pressure on the contact area of the first end 11 of the minute lever. The latter is then subjected to the action of the long spring 15 tending to maintain the probe 14 in abutment against the minute cam 7, so that the minute display member indicates the minutes of the current time (configurations shown on FIG. the figures 1 and 3 respectively at 10:10 and 7:30).

Inversement, lorsque la seconde extrémité 22 de la bascule 19 est en appui sur une colonne 23, sa première extrémité 18 exerce une pression suffisante sur la première extrémité 11 du levier des minutes pour s'opposer à la force exercée par le ressort long 15. En conséquence de cela, le palpeur 14 est écarté de la périphérie de la came des minutes 7 et le levier des minutes se place dans une position alternative prédéfinie (représentée sur la figure 4, ici une position arbitraire des aiguilles à 10h10 a été illustrée) qui est notamment fonction de l'amplitude de rotation de la bascule 19 lorsqu'elle passe d'une position à l'autre. Dans le mode de réalisation des figures 1 et 3, la position prédéfinie est telle que l'extrémité libre du palpeur est située à une distance du centre de la came 7 supérieure au plus grand rayon de cette dernière. Ainsi, la came peut effectuer un tour complet sur elle-même sans entrer en contact avec le palpeur.Conversely, when the second end 22 of the rocker 19 bears on a column 23, its first end 18 exerts sufficient pressure on the first end 11 of the minute lever to oppose the force exerted by the long spring 15. As a result of this, the feeler 14 is moved away from the periphery of the minute cam 7 and the minutes lever is placed in a predefined alternative position (shown in FIG. figure 4 here, an arbitrary position of the hands at 10:10 has been illustrated) which is in particular a function of the amplitude of rotation of the rocker 19 when it passes from one position to the other. In the embodiment of figures 1 and 3 , the predefined position is such that the free end of the probe is located at a distance from the center of the cam 7 greater than the largest radius of the latter. Thus, the cam can perform a complete revolution on itself without coming into contact with the probe.

Dans la configuration de la figure 4, l'organe d'affichage se trouve dans une position de repos qui peut être choisie par le constructeur du mouvement horloger, au moment de l'indexation de l'organe d'affichage, en fonction de ses préférences ou de ses besoins.In the configuration of the figure 4 , the display member is in a rest position which can be chosen by the manufacturer of the watch movement, at the time of indexing of the display member, according to his preferences or needs.

La roue à colonnes 24 est actionnée au moyen d'un actuateur présentant la forme d'un correcteur 26 qui peut être manipulé par un utilisateur depuis l'extérieur de la pièce d'horlogerie correspondante, à l'aide d'un dispositif externe conventionnel, éventuellement par l'intermédiaire d'un levier de commande 25, représenté à titre illustratif non limitatif. Le correcteur est préférablement monté libre en translation entre deux positions, une enfoncée et une de repos dans laquelle il est maintenu, par défaut, par un ressort de correcteur 27 coopérant avec un évidement 28 ménagé dans le correcteur. Le correcteur porte une dent 30 agencée pour agir sur la roue à colonnes 24 lorsque le correcteur est enfoncé et la faire tourner d'un demi-pas et, par conséquent, pour faire pivoter la bascule 19 d'une position à l'autre. La dent 30 est préférablement élastique pour s'effacer lors du retour du correcteur dans sa position de repos, sous l'effet de l'action du ressort de correcteur 27.The column wheel 24 is actuated by means of an actuator having the form of a corrector 26 which can be manipulated by a user from outside the corresponding timepiece, using a conventional external device , possibly via a control lever 25, shown by way of nonlimiting illustration. The corrector is preferably mounted free in translation between two positions, a recessed and a rest in which it is maintained, by default, by a corrector spring 27 cooperating with a recess 28 formed in the corrector. The corrector carries a tooth 30 arranged to act on the column wheel 24 when the corrector is depressed and rotate a half-step and, therefore, to rotate the rocker 19 from one position to another. The tooth 30 is preferably elastic to be erased during the return of the corrector in its rest position, under the effect of the action of the corrector spring 27.

On a représenté un sautoir 31 coopérant avec la denture de la roue à colonnes 24 pour définir les positions stables de cette dernière, de façon conventionnelle.There is shown a jumper 31 cooperating with the toothing of the column wheel 24 to define the stable positions of the latter, conventionally.

Dans la partie inférieure des figures 1, 3 et 4, il apparaît que le mécanisme d'affichage selon l'invention comporte un dispositif similaire à celui qui vient d'être décrit, dans le but de contrôler les déplacements d'un organe d'affichage des heures.In the lower part of figures 1 , 3 and 4 it appears that the display mechanism according to the invention comprises a device similar to that just described, for the purpose of controlling the movements of a display member hours.

Un renvoi 33 similaire à une minuterie conventionnelle est prévu pour assurer la liaison cinématique entre le pignon 5 de la chaussée 1 et une came des heures 37, par l'intermédiaire de son pignon 40 engrenant avec une roue 41 solidaire de la came 37 en rotation, de telle manière que la came 37 fait un tour sur elle-même en douze heures.A reference 33 similar to a conventional timer is provided to ensure the kinematic connection between the pinion 5 of the roadway 1 and a cam of hours 37, through its pinion 40 meshing with a wheel 41 integral with the cam 37 in rotation so that the cam 37 turns on itself in twelve hours.

Le mécanisme d'affichage comporte un levier des heures 50 monté pivotant sur la platine supplémentaire par l'intermédiaire d'un axe situé à proximité d'une première de ses extrémités 51. Le levier 50 porte un râteau 52, à sa seconde extrémité, agencé en prise avec un pignon des heures 53, monté libre en rotation sur la chaussée 1, ainsi qu'un palpeur 54, dans sa portion médiane. Le pignon des heures 53 remplit la fonction d'une roue des heures conventionnelle, c'est-à-dire qu'il est destiné à porter un organe d'affichage des heures. Ainsi, le palpeur 54 est destiné à coopérer avec la came des heures 37 de manière à positionner le pignon des heures, par l'intermédiaire du râteau 52, dans une position telle que l'organe d'affichage correspondant indique les heures. Le mécanisme comprend en outre un ressort long 55 coopérant avec un doigt 56 monté sur le levier 50 pour appliquer sur ce dernier une force tendant à plaquer le palpeur 54 contre la périphérie de la came 37.The display mechanism comprises an hour lever 50 pivotally mounted on the additional plate via an axis located near a first end 51. The lever 50 carries a rake 52, at its second end, arranged in engagement with a pinion hours 53, rotatably mounted on the roadway 1, and a feeler 54, in its middle portion. The hour gear 53 serves the function of a conventional hour wheel, that is to say it is intended to carry a display member hours. Thus, the feeler 54 is intended to cooperate with the hour cam 37 so as to position the hour gear, by means of the rake 52, in a position such that the corresponding display member indicates the hours. The mechanism further comprises a long spring 55 cooperating with a finger 56 mounted on the lever 50 to apply on the latter a force tending to press the feeler 54 against the periphery of the cam 37.

Par ailleurs, le levier des heures 50 présente une surface de contact 57, au niveau de sa première extrémité 51, agencée pour coopérer avec une première extrémité 58 d'une bascule des heures 59, sensiblement en forme de J et, montée pivotante sur la platine supplémentaire au moyen d'une vis à portée 60 disposée entre les deux bras du J.Moreover, the hour lever 50 has a contact surface 57, at its first end 51, arranged to cooperate with a first end 58 of a latch 59 hours, substantially J-shaped and pivotally mounted on the additional plate by means of a span screw 60 disposed between the two arms of the J.

La seconde extrémité 62 de la bascule présente la forme d'un bec agencé pour coopérer avec les colonnes 63 d'une roue à colonnes supplémentaire 64 montée à rotation sur la platine supplémentaire. Ainsi, lorsque la seconde extrémité 62 de la bascule 59 est située dans un vide entre deux colonnes 63, sa première extrémité 58 n'exerce pas ou peu de pression sur la zone de contact de la première extrémité 51 du levier des heures. Ce dernier est alors soumis à l'action du ressort long 55 tendant à maintenir le palpeur 54 en appui contre la came des heures 37, pour que l'organe d'affichage des heures indique les heures de l'heure courante (configurations représentées sur les figures 1 et 3).The second end 62 of the rocker has the shape of a spout arranged to cooperate with the columns 63 of an additional column wheel 64 rotatably mounted on the additional plate. Thus, when the second end 62 of the rocker 59 is located in a vacuum between two columns 63, its first end 58 exerts little or no pressure on the contact area of the first end 51 of the hours lever. The latter is then subjected to the action of the long spring 55 tending to maintain the probe 54 in abutment against the hour cam 37, so that the hour display member indicates the hours of the current time (configurations shown on the figures 1 and 3 ).

Inversement, lorsque la seconde extrémité 62 de la bascule 59 est en appui sur une colonne 63, sa première extrémité 58 exerce une pression suffisante sur la première extrémité 51 du levier des heures pour s'opposer à la force exercée par le ressort long 55. En conséquence de cela, le palpeur 54 est écarté de la périphérie de la came des heures 37 et le levier des heures se place dans une position alternative prédéfinie (représentée sur la figure 4) qui est notamment fonction de l'amplitude de rotation de la bascule 59 lorsqu'elle passe d'une position à l'autre. Dans le mode de réalisation illustré, la position prédéfinie est telle que l'extrémité libre du palpeur est située à une distance du centre de la came 37 supérieure au plus grand rayon de cette dernière. Ainsi, la came peut effectuer un tour complet sur elle-même sans entrer en contact avec le palpeur.Conversely, when the second end 62 of the rocker 59 bears on a column 63, its first end 58 exerts sufficient pressure on the first end 51 of the hour lever to oppose the force exerted by the long spring 55. Consequently this, the feeler 54 is spaced from the periphery of the hour cam 37 and the hour lever is placed in a predefined alternative position (shown in FIG. figure 4 ) which is in particular a function of the amplitude of rotation of the rocker 59 as it passes from one position to the other. In the illustrated embodiment, the predefined position is such that the free end of the probe is located at a distance from the center of the cam 37 greater than the largest radius of the latter. Thus, the cam can perform a complete revolution on itself without coming into contact with the probe.

De même que pour l'organe d'affichage des minutes, dans la configuration de la figure 4, l'organe d'affichage des heures se trouve dans une position de repos qui peut être choisie par le constructeur du mouvement horloger, au moment de l'indexation de l'organe d'affichage, en fonction de ses préférences ou de ses besoins.As for the minute display organ, in the configuration of the figure 4 , the hour display member is in a rest position which can be chosen by the manufacturer of the watch movement, at the time of indexing of the display member, according to his preferences or his needs .

La roue à colonnes 64 est actionnée par le correcteur 26 qui porte une dent 70 supplémentaire agencée pour agir sur la roue à colonnes 64 lorsque le correcteur est enfoncé et la faire tourner d'un demi-pas et, par conséquent, pour faire pivoter la bascule 59 d'une position à l'autre. La dent 70 est préférablement élastique, de même que la dent 30, pour s'effacer lors du retour du correcteur dans sa position de repos, sous l'effet de l'action du ressort de correcteur 27.The column wheel 64 is actuated by the corrector 26 which carries an additional tooth 70 arranged to act on the column wheel 64 when the corrector is depressed and to rotate it by half a step and, consequently, to rotate the rocker 59 from one position to another. The tooth 70 is preferably elastic, as is the tooth 30, to fade when the corrector returns to its rest position, under the effect of the action of the corrector spring 27.

Un sautoir 71 est également prévu pour définir les positions angulaires stables de la roue à colonnes 64.A jumper 71 is also provided to define the stable angular positions of the column wheel 64.

On notera que la forme de la périphérie des cames 7, 37 définit l'angle parcouru par chacun des organes d'affichage lorsque le mouvement est dans le mode d'affichage horaire. Ainsi, il est possible de prévoir que les organes d'affichage se déplacent en regard de secteurs gradués correspondants.It will be noted that the shape of the periphery of the cams 7, 37 defines the angle traveled by each of the display members when the movement is in the time display mode. Thus, it is possible to provide that the display members move with respect to corresponding graduated sectors.

Selon un mode de réalisation particulier, il est possible de prévoir que les organes d'affichage parcourent des secteurs gradués s'étendant suivant un angle de 360°. Dans ce cas de figure, l'affichage de l'heure courante est effectué de manière quasiment conventionnelle à l'exception du fait que chacun des organes d'affichage présente un mouvement rétrograde après avoir parcouru 360°. Grâce à ces caractéristiques, l'apparence de la pièce d'horlogerie peut être absolument conventionnelle, notamment au niveau de son cadran, par opposition aux pièces d'horlogerie comprenant des organes d'affichage rétrogrades se déplaçant en regard de secteurs gradués s'étendant sur un angle inférieur à 360°.According to a particular embodiment, it is possible to provide that the display members traverse graduated sectors extending at an angle of 360 °. In this case, the display of the current time is done in an almost conventional manner, except that each of the display members has a retrograde movement. after having gone through 360 °. Thanks to these characteristics, the appearance of the timepiece can be absolutely conventional, especially at the level of its dial, as opposed to timepieces comprising retrograde display organs moving opposite graduated sectors extending on an angle less than 360 °.

Par ailleurs, le débattement des leviers 10 et 50 combiné aux rapports d'engrenages entre les râteaux 12, 52 et les pignons 13, 53 ainsi que l'indexation des organes d'affichage lors de leur montage sur le mouvement offrent une très grande liberté dans la définition des positions de repos respectives de ces derniers. Les organes d'affichage peuvent être disposés, par exemple, à midi ou encore à dix heures dix qui est la position typiquement utilisée pour photographier les modèles de montres. Il convient de noter que, du fait de la construction particulière du mécanisme selon l'invention, les organes d'affichage peuvent être totalement découplés l'un de l'autre et occuper des positions de repos relatives qu'ils n'occupent jamais lorsque la pièce d'horlogerie est en mode d'affichage de l'heure courante, comme par exemple les deux organes superposés pointant exactement la position six heures d'un cadran conventionnel.Furthermore, the movement of the levers 10 and 50 combined with the gear ratios between the rakes 12, 52 and the pinions 13, 53 and the indexing of the display members during their mounting on the movement offer a great deal of freedom in the definition of the respective rest positions of the latter. The display members may be arranged, for example, at noon or at ten past ten, which is the position typically used to photograph watch models. It should be noted that, because of the particular construction of the mechanism according to the invention, the display members can be completely decoupled from one another and occupy relative rest positions they never occupy when the timepiece is in the current time display mode, such as the two superimposed bodies pointing exactly the six o'clock position of a conventional dial.

Le mécanisme d'affichage qui vient d'être décrit présente l'avantage de procurer un affichage original et discret avec une précision et une fiabilité de fonctionnement très élevées.The display mechanism that has just been described has the advantage of providing an original and discreet display with a very high accuracy and reliability of operation.

Les figures 5 et 6 présentent une variante de réalisation du mode de réalisation principal qui vient d'être décrit, selon laquelle le module d'affichage est en outre destiné à afficher une information supplémentaire, en particulier ici le quantième. Les figures 5 et 6 présentent une orientation différente de celle utilisée pour les figures précédentes.The figures 5 and 6 show an alternative embodiment of the main embodiment which has just been described, according to which the display module is further intended to display additional information, in particular here the date. The figures 5 and 6 have a different orientation from that used for the previous figures.

A cet effet, un mécanisme à la structure et au fonctionnement similaires à ceux de l'indication des minutes et des heures courantes est prévu pour commander un organe d'affichage du quantième.For this purpose, a mechanism similar in structure and operation to that of the indication of minutes and current hours is provided for controlling a date display member.

Plus précisément, le mécanisme d'affichage décrit plus haut comporte en outre un levier de quantième 80 monté pivotant sur la platine supplémentaire par l'intermédiaire d'un axe situé à proximité d'une première de ses extrémités 81. Le levier 80 porte un râteau 82, à sa seconde extrémité, agencé en prise avec un pignon de quantième 83, monté libre en rotation sur la platine supplémentaire et destiné à porter un organe d'affichage du quantième. Le levier 80 porte également un palpeur 84, dans sa portion médiane. Ce dernier est destiné à coopérer, à la demande, avec une came de quantième 86 de manière à positionner le pignon de quantième, par l'intermédiaire du râteau 82, dans une position telle que l'organe d'affichage correspondant indique la valeur du quantième en cours. Le mécanisme comprend en outre un ressort spiral 88 précontraint, dont une première extrémité est solidaire de la platine supplémentaire et la seconde extrémité au moins indirectement solidaire du pignon de quantième 83, pour tendre à faire tourner ce dernier dans le sens de rotation anti-horaire (sur les figures) et appliquer le palpeur 84 contre la périphérie de la came de quantième 86.More specifically, the display mechanism described above further comprises a date lever 80 pivotally mounted on the additional plate via an axis located near a first of its ends 81. The lever 80 carries a rake 82, at its second end, arranged in engagement with a date pinion 83, rotatably mounted on the additional plate and intended to carry a date display member. The lever 80 also carries a probe 84, in its median portion. The latter is intended to cooperate, on demand, with a date cam 86 so as to position the date pinion, via the rake 82, in a position such that the corresponding display member indicates the value of the date date in progress. The mechanism further comprises a prestressed spring spring 88, whose first end is integral with the additional plate and the second end at least indirectly integral with the date pinion 83, to tend to rotate the latter in the anti-clockwise direction of rotation. (in the figures) and apply the probe 84 against the periphery of the date cam 86.

On notera que le palpeur est réalisé ici, à titre non limitatif, sous la forme d'une surépaisseur ménagée sur le levier 80, de sorte que celui-ci peut être agencé à un niveau inférieur à celui de la came 86. Grâce à cette caractéristique, les propriétés mécaniques du levier peuvent être adaptées aux contraintes qu'il doit subir pour remplir sa fonction.Note that the probe is made here, without limitation, in the form of an extra thickness provided on the lever 80, so that it can be arranged at a lower level than that of the cam 86. With this Characteristically, the mechanical properties of the lever can be adapted to the stresses it must undergo to fulfill its function.

Par ailleurs, le levier de quantième 80 présente une surface de contact 89, au niveau de sa première extrémité 81, agencée pour coopérer avec une extension 90 portée ici par la bascule des minutes 19. De ce fait, l'affichage du quantième est activé ou désactivé simultanément à l'affichage de l'heure courante.Furthermore, the date lever 80 has a contact surface 89, at its first end 81, arranged to cooperate with an extension 90 carried here by the minute latch 19. As a result, the date display is activated. or disabled simultaneously with the current time display.

La figure 5 illustre la configuration du mouvement lorsque l'affichage est actif tandis que la figure 6 illustre celle correspondant à la suspension de l'affichage, c'est-à-dire lorsque les organes d'affichage sont placés dans leurs positions alternatives respectives.The figure 5 illustrates the motion configuration when the display is active while the figure 6 illustrates that corresponding to the suspension of the display, that is to say when the display members are placed in their respective alternative positions.

La came de quantième 86 est entraînée de manière conventionnelle à partir d'une roue de quantième 92, elle-même entraînée depuis le rouage de finissage, par l'intermédiaire d'une denture interne 93, pour avancer d'un pas par jour. La roue de quantième comprend également une denture externe 94 agencée pour faire avancer d'un pas par jour une étoile 95 portant un pignon 96 agencé en prise avec une roue 98 solidaire de la came de quantième 86. Un sautoir 97 est prévu pour positionner correctement l'étoile 95.The date cam 86 is driven in a conventional manner from a date wheel 92, itself driven from the finishing gear train, via an internal toothing 93, to advance one step per day. The date wheel also includes an external toothing 94 arranged to advance a step per day a star 95 carrying a pinion 96 arranged in engagement with a wheel 98 integral with the date cam 86. A jumper 97 is provided to correctly position the star 95.

Bien entendu, il est possible de prévoir en variante que le mécanisme d'affichage du quantième est commandé à partir du mécanisme d'affichage des heures plutôt qu'à partir de celui des minutes, sans sortir du cadre de l'invention.Of course, it is possible to provide in a variant that the calendar display mechanism is controlled from the hours display mechanism rather than from that of minutes, without departing from the scope of the invention.

La description qui précède s'attache à décrire un mode de réalisation particulier à titre d'illustration non limitative et, l'invention n'est pas limitée à la mise en oeuvre de certaines caractéristiques particulières qui viennent d'être décrites, comme par exemple les roues à colonnes ou leur forme, des organes de commande rotatifs de type navette pouvant être utilisés en alternative. Par ailleurs, une roue à colonnes unique peut être utilisée sans sortir du cadre de la présente invention, les deux bascules étant alors agencées pour coopérer avec ses colonnes de manière simultanée.The foregoing description attempts to describe a particular embodiment by way of non-limiting illustration and the invention is not limited to the implementation of certain particular features which have just been described, for example column wheels or their shape, shuttle-type rotary actuators can be used alternatively. Furthermore, a single column wheel can be used without departing from the scope of the present invention, the two latches being then arranged to cooperate with its columns simultaneously.

Tel que mentionné plus haut, le mécanisme peut être construit sous la forme d'un module additionnel destiné à enrichir un calibre horloger de base ou être directement intégré à un mouvement horloger. De même, des mobiles supplémentaires et non coaxiaux peuvent être prévus pour porter les organes d'affichage.As mentioned above, the mechanism can be constructed in the form of an additional module for enriching a basic watchmaker's caliber or be directly integrated into a watch movement. Likewise, additional and non-coaxial mobiles may be provided for carrying the display members.

On notera que les palpeurs 14, 54 ont été représentés dans une configuration optionnelle sur les figures, plus précisément ils sont montés rotatifs sur le levier correspondant tandis qu'ils portent les doigts 16, 56 sur lesquels agissent les ressorts droits 15, 55. Une telle configuration, procurant une sécurité pour le cas où l'utilisateur effectuerait une mise à l'heure en faisant tourner les cames 7, 37 dans le sens de rotation anti-horaire sur les figures, est conventionnelle et ne doit pas être considérée comme étant limitative.Note that the feelers 14, 54 have been shown in an optional configuration in the figures, more precisely they are rotatably mounted on the corresponding lever while they bear the fingers 16, 56 on which the right springs 15, 55 act. such configuration, providing security for the case where the user would perform a time setting by rotating the cams 7, 37 in the counter-clockwise direction in the figures, is conventional and should not be considered as being limiting.

De même, on a prévu un évidement incurvé 75 dans le levier des heures 50, à titre non limitatif, pour permettre le passage d'un arbre destiné à porter une aiguille des secondes 76, tel que cela apparaît de la figure 3.Similarly, there is provided a curved recess 75 in the lever 50 hours, without limitation, to allow the passage of a shaft for carrying a second hand 76, as it appears from the figure 3 .

En complément au mode de réalisation général qui a été décrit, il est possible de prévoir que le mécanisme comporte des moyens supplémentaires pour que l'un au moins des leviers 10, 50 présente une seconde position de butée, associée à la position de repos de l'organe d'affichage correspondant, dans laquelle ce dernier pourra afficher une grandeur supplémentaire relative au temps ou au fonctionnement de la pièce d'horlogerie.In addition to the general embodiment that has been described, it is possible to provide that the mechanism comprises means additional so that at least one of the levers 10, 50 has a second stop position, associated with the rest position of the corresponding display member, in which the latter can display an additional quantity relating to time or operation of the timepiece.

Par ailleurs, on peut également prévoir que l'affichage d'une information supplémentaire, tel qu'illustré sur les figures 5 et 6, peut être mis en oeuvre en relation avec une information autre que le quantième. On peut envisager notamment d'indiquer d'autres grandeurs, tel que le jour de la semaine ou le mois, en alternative ou en complément à l'affichage du quantième tel que décrit. Bien entendu, lorsqu'au moins deux informations supplémentaires sont affichées, leurs mécanismes respectifs peuvent être commandés, respectivement, à partir des mécanismes d'affichage des heures et des minutes.On the other hand, it is also possible that the display of additional information, as illustrated on the figures 5 and 6 can be implemented in relation to information other than the date. In particular, it is possible to indicate other quantities, such as the day of the week or the month, as an alternative or in addition to the date display as described. Of course, when at least two additional pieces of information are displayed, their respective mechanisms can be controlled, respectively, from the display mechanisms of the hours and minutes.

L'homme du métier ne rencontrera pas de difficulté particulière pour adapter le contenu de la présente divulgation à ses propres besoins et mettre en oeuvre une pièce d'horlogerie présentant un affichage exclusif sans sortir du cadre de la présente invention qui est défini par les revendications annexés.Those skilled in the art will not encounter any particular difficulty in adapting the content of the present disclosure to their own needs and implementing a timepiece presenting an exclusive display without departing from the scope of the present invention which is defined by the claims attached.

Claims (12)

  1. A display mechanism for a timepiece, adapted to be driven from a base wheel (1, 5) of a clock movement to actuate the movements of a display device for displaying at least one indication relative to the time or the operation of the timepiece, the mechanism comprising
    a cam (7) having a periphery of predefined form and which is adapted to be driven by the base wheel,
    a lever (10) adapted to be pivotally mounted, with reference to a support member of the clock movement, between an abutment position, associated with an indication position of the display device, and a waiting position, associated with a predefined alternative position of the display device, said lever bearing a cam follower (14) adapted to cooperate with the periphery of said cam to define said abutment position, the lever furthermore bearing a rack (12) arranged in meshing engagement with a pinion (13) adapted to drive the display device,
    a movable actuating device (24) having at least a waiting position and an indicating position, said actuating device being arranged to pass alternately from one position to the other in response to successive actions of a user,
    characterized in that said cam is adapted to be driven continuously, independently of the indication and waiting positions of said movable actuating device and of said lever, both being stable positions, the mechanism comprising elastic means (15) cooperating with a finger (16) mounted on the lever (10) and directly exerting a force on said lever to bias it into said abutment position, and
    said actuating device also being arranged to oppose the action of said elastic means (15) in its waiting position and enable said lever (10) to assume its waiting position.
  2. A mechanism according to claim 1, characterized in that it comprises a rocker (19) adapted to be pivotally mounted, with reference to a frame member of the clock movement, and arranged to cooperate with the actuating device (24), and to cooperate with said lever (10) to oppose the action of said elastic means (15) when said actuating device is in its waiting position.
  3. A mechanism according to claim 2, characterized in that said actuating device is a rotary actuating device (24).
  4. A mechanism according to claim 3, characterized in that said actuating device is a column wheel (24), said rocker (19) having a beak (22) arranged to cooperate with the columns (23) to directly act, by pivoting, on a contact surface (17) of said lever (10) and position it in its waiting position.
  5. A mechanism according to any one of claims 1 to 4, characterized in that it is arranged such that a complete revolution of said cam (7) is associated with at least one complete revolution of said display device.
  6. A mechanism according to one of claims 1 to 5, characterized in that said display device is an indicator device of the hour or of the minute.
  7. A mechanism according to one of claims 1 to 5, characterized in that the base wheel (5) of the clock movement is driven by a cannon-pinion (1) to make one revolution in one hour, said display device being a minute display device, the display mechanism further comprising
    an additional cam (37) adapted to be driven from the clock movement to make one revolution in twelve or twenty-four hours,
    an additional lever (50) cooperating with said additional cam and bearing an additional rack (52) arranged in meshing engagement with an additional pinion (53) to drive an hour display device,
    additional elastic means (55) to act on said additional lever,
    said actuating device (24) being arranged to oppose the action of said additional elastic means in its waiting position and to enable said additional lever (50) also to assume a waiting position associated with a predefined alternative position of the hour display device, simultaneously with its action on the lever (10) associated with the display of the minutes.
  8. A mechanism according to one of claims 1 to 5, characterized in that the base wheel (5) of the clock movement is driven by a cannon-pinion (1) to make one revolution in one hour, said display device being a minute display device, the display mechanism further comprising
    an additional cam (37) adapted to be driven from the clock movement to make one revolution in twelve or twenty-four hours,
    an additional lever (50) cooperating with said additional cam and bearing an additional rack (52) arranged in meshing engagement with an additional pinion (53) to drive an hour display device,
    additional elastic means (55) to act on said additional lever,
    an additional movable actuating device (64) having at least a waiting position and an indicating position, both being stable positions, said actuating device being arranged to pass alternately from one position to the other in response to successive actions of a user, the positions of the additional actuating device being coordinated with those of the actuating device (24) that is associated with the display of the minutes,
    the additional actuating device (64) being arranged to oppose the action of said additional elastic means (55) in its waiting position and to enable said additional lever (50) also to assume a waiting position associated with a predefined alternative position of the hour display device.
  9. A mechanism according to claim 8, characterized in that it comprises an actuator (26) adapt to be actuated by a user via an external device and which is arranged to act simultaneously on said actuating device (24) and on said additional actuating device (64) to make them change position.
  10. A mechanism according to any one of claims 7 to 9, characterized in that said pinion (13) and said additional pinion (53) are superposed.
  11. A clock movement comprising a base wheel (1, 5) arranged to drive at least one cam (7, 37) of a display mechanism according to any one of the preceding claims.
  12. A timepiece comprising a clock movement according to claim 11 arranged to drive at least one display device.
EP09809324.8A 2008-08-26 2009-08-21 Display mechanism for a timepiece used to display or not the current time Active EP2329325B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP09809324.8A EP2329325B1 (en) 2008-08-26 2009-08-21 Display mechanism for a timepiece used to display or not the current time

Applications Claiming Priority (3)

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EP08105136A EP2159652A1 (en) 2008-08-26 2008-08-26 Display mechanism for a timepiece used to display or not the current time
EP09809324.8A EP2329325B1 (en) 2008-08-26 2009-08-21 Display mechanism for a timepiece used to display or not the current time
PCT/EP2009/060843 WO2010023169A1 (en) 2008-08-26 2009-08-21 Display mechanism for a timepiece for displaying or not displaying the current time

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EP2329325A1 EP2329325A1 (en) 2011-06-08
EP2329325B1 true EP2329325B1 (en) 2017-03-01

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EP (2) EP2159652A1 (en)
JP (1) JP5395175B2 (en)
KR (1) KR101361301B1 (en)
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HK (1) HK1157882A1 (en)
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US20110205854A1 (en) 2011-08-25
JP2012500985A (en) 2012-01-12
KR101361301B1 (en) 2014-02-11
WO2010023169A1 (en) 2010-03-04
RU2011111565A (en) 2012-10-10
CN102187284B (en) 2013-05-29
RU2470338C2 (en) 2012-12-20
KR20110049881A (en) 2011-05-12
CN102187284A (en) 2011-09-14
EP2159652A1 (en) 2010-03-03
EP2329325A1 (en) 2011-06-08
JP5395175B2 (en) 2014-01-22
US8398299B2 (en) 2013-03-19
HK1157882A1 (en) 2012-07-06

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