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EP2615505A1 - Mechanism for indicating on request information for a timepiece movement - Google Patents

Mechanism for indicating on request information for a timepiece movement Download PDF

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Publication number
EP2615505A1
EP2615505A1 EP12151185.1A EP12151185A EP2615505A1 EP 2615505 A1 EP2615505 A1 EP 2615505A1 EP 12151185 A EP12151185 A EP 12151185A EP 2615505 A1 EP2615505 A1 EP 2615505A1
Authority
EP
European Patent Office
Prior art keywords
cam
indication
control lever
radius
movement
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP12151185.1A
Other languages
German (de)
French (fr)
Inventor
Jean-Marc Wiederrecht
Nicolas Stalder
Guy Dubois-Ferriere
Maximilien Di Blasi
Laurent Wiederrecht
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.)
Agenhor SA
Original Assignee
Agenhor SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Agenhor SA filed Critical Agenhor SA
Priority to EP12151185.1A priority Critical patent/EP2615505A1/en
Priority to PCT/EP2013/050600 priority patent/WO2013104802A1/en
Priority to EP13701933.7A priority patent/EP2802945A1/en
Publication of EP2615505A1 publication Critical patent/EP2615505A1/en
Withdrawn legal-status Critical Current

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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
    • 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
    • G04B21/00—Indicating the time by acoustic means
    • G04B21/02—Regular striking mechanisms giving the full hour, half hour or quarter hour
    • G04B21/04—Hour wheels; Racks or rakes; Snails or similar control mechanisms
    • 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
    • G04B21/00—Indicating the time by acoustic means
    • G04B21/02—Regular striking mechanisms giving the full hour, half hour or quarter hour
    • G04B21/12—Reiterating watches or clocks

Definitions

  • the present invention relates to an on-demand indication mechanism for information for a watch movement, comprising a lever for controlling an indication member of this information, able to cooperate at least indirectly with the latter to indicate the information. in response to a predefined trigger event.
  • the control lever is adapted to be movably mounted on a frame member of the watch movement to take a plurality of indication positions between a rest position and a maximum indication position.
  • the mechanism also comprises a resting surface, which can be retracted in response to the trigger event and with which the control lever is intended to cooperate in its rest position, under the effect of the action of a elastic member.
  • the mechanism further comprises a first cam, intended to be pivotally mounted on a frame member of the watch movement and to be driven by a first mobile of the watch movement having a movement representative of the information to be indicated, this first cam having a periphery of variable radius, representative of the information to be indicated, including a portion of minimum radius associated with the maximum indication position.
  • the control lever has a first nose intended to cooperate with the periphery of the first cam to assume an indicating position, under the effect of the action of the elastic member, in response to the triggering event, and a second spout arranged to cooperate with the resting surface in its rest position.
  • the subject of the invention is such an indication mechanism making it possible to indicate the information concerned in a visual or audible manner.
  • the invention also relates to a watch movement comprising such an indication mechanism and a timepiece provided with such a watch movement.
  • indication on demand it will be understood that the indication is made in response to an action of a user, but it may also be performed in response to the occurrence of a predefined event related to the normal operation of the watch movement for example, like a bell in the way.
  • Requirement EP 1708050 A1 discloses a minute-repeating clock movement that has a mechanism that meets the above specifications.
  • This mechanism comprises in particular a ringing part having a rest position and being able to be displaced in rotation to take a plurality of indication positions, in relation to a cam called hour limb, under the effect of a spring .
  • the striking piece has a first nose intended to cooperate with the periphery of the hours snail to take an indication position, in response for example to an action of a user on an external control member of the workpiece. watchmaking.
  • the striking piece has a second nozzle cooperating with a retractable resting surface, carried by a quarter control, against which it is supported by the spring in its rest position.
  • the second spout escapes the resting surface to allow the ringer to go to its indicating position, before being returned to the rest position at the end. indication cycle, by a driving wheel, while operating a lifting hours arranged to control a hammer striking a stamp to indicate the corresponding time.
  • the driving wheel is itself driven from the unwinding of a barrel, released by the action of the user, whose duration or the unwinding angle is controlled by a counting wheel, also driven from the same barrel and arranged to make a U-turn before being locked.
  • These striking mechanisms generally comprise a speed regulator controlling the unwinding speed of the barrel from which is defined the rhythm of the strikes of the hammer on the stamp which, of course, must be as regular as possible.
  • the spring of the cylinder used to drive the control lever must be strong enough to overcome the force of the spring acting on the latter and allow it to return to its rest position, which can cause additional problems related to the clutter overall mechanism.
  • a main object of the present invention is to present an alternative to the on-demand indication mechanisms known from the prior art, by proposing such a mechanism in which the stresses to which the mobile components are subjected are diminished, notably guaranteeing them better durability. , in particular because of a smoother running kinematics.
  • the present invention relates more particularly to a mechanism of the type mentioned above, characterized in that that the resting surface is arranged on a periphery of variable radius of a second cam, the latter being intended to be pivotally mounted on a frame member of the watch movement and to be driven by a drive train, and that the drive train and the second cam are arranged in such a way that, in response to the triggering event, the second cam is rotated to present a maximum indication radius opposite the second nose such as the race. required for the latter to move from the resting surface to the maximum indication radius corresponds to a displacement of the control lever equal to or greater than the displacement it has to move from its rest position to its maximum indication position.
  • the recess of the mechanism namely the release of the control lever, is performed in a gentler manner than in the mechanisms of the prior art and guarantees a better durability of the components involved.
  • the periphery of the second cam has a radius whose variation is substantially continuous between the rest surface and the maximum indication radius.
  • the softness of the detachment is further improved.
  • the control lever is retained in its fall towards the first cam and the establishment of the contact between its first nose and the periphery of the latter is less brutal than in the mechanisms of the prior art.
  • the driving train and the variation of the radius of the periphery of the second cam are arranged in such a way that the speed of movement of the control lever to move from its rest position to its position of indication is substantially constant.
  • control lever can be used to actuate a striking hammer to hit a timbre with a regular frequency, similar to what is implemented in known bell mechanisms.
  • the drive train is arranged to drive the second cam in rotation at a substantially constant speed and to traverse a predefined angle, for example 360 degrees.
  • the resting surface is returned to its function position at the end of the operating cycle, that is to say when the second cam has completed a complete turn on itself.
  • the second cam guides the movements of the control lever, smoothly, in the direction of the descent and the rise.
  • the second cam is then symmetrical along an axis passing through the resting surface and the maximum indication radius.
  • the second cam has an extended portion having a value of radius equal to the maximum indication radius, the axis of symmetry of the second cam passing substantially through the middle of the extended portion.
  • the extended portion and the drive train are arranged such that the control lever is likely to remain in its maximum indication position for at least 3 seconds, preferably at least 5 seconds, after being conducted in response to the trigger event.
  • the drive train can advantageously be supplied with mechanical energy by a mainspring which can be calibrated in a relatively precise manner and will not necessarily need to output as much torque as in the known mechanisms of this type, depending on the shape given to the periphery of the second cam and its radius.
  • control lever is preferably intended to be rotatably mounted on a frame member of the watch movement.
  • it advantageously has a pivot axis reference to which it is intended to pivot and at least one abutment surface, located at a first predetermined distance from the pivot axis and arranged to undergo the effect of the action of the elastic member to apply the control lever against the resting surface, that, on the one hand, the abutment surface and, on the other hand, the first and second spouts are arranged on either side of the pivot axis of the control lever, and the second spout is located at a distance from the pivot axis greater than the first predefined distance.
  • the rotational speed of the second cam is greater than that of the first cam, preferably at least a factor of 10, still more preferably at least a factor of 100.
  • the indication of the information can be carried out with a duration such that a possible variation of the value of this information does not harm its indication.
  • the invention also relates to a watch movement comprising an indication mechanism of the type which has just been described, arranged to drive a visual indication member and / or a sound indicating member of an information, as well as a timepiece provided with such a watch movement.
  • FIG. 1 is a general perspective view of a portion of a watch movement having a plurality of indication mechanisms according to a preferred embodiment of the present invention
  • the figure 2 represents a simplified top view of a first indication mechanism of the figure 1 in a first configuration
  • the figure 3 represents a simplified top view of the first indication mechanism of the figure 2 in a second configuration
  • the figure 4 represents a simplified top view of the first indication mechanism of the figure 2 in a third configuration
  • the figure 5 represents a simplified top view of the first indication mechanism of the figure 2 in a fourth configuration
  • the figure 6 represents a simplified top view of a second mechanism for indicating the figure 1 ;
  • the figure 7 represents a simplified top view of a third mechanism for indicating the figure 1 .
  • the figure 8 represents a simplified perspective view of a fourth construction detail of the watchmaking movement of the figure 1 according to a preferred embodiment variant.
  • the figure 1 represents a general perspective view of a portion of a watch movement having a plurality of indication mechanisms according to a preferred embodiment of the present invention.
  • the watch movement illustrated on the figure 1 illustrates some of the innumerable possibilities offered by the indication mechanism according to the present invention since in reality it combines three mechanisms of this type, operating in similar ways.
  • the watch movement of the figure 1 is intended to drive first and second display members of the current hours 1, 2, of a current hours sound indicating member (reference numeral 3 on the figure 8 ) as well as a current minute display member 4 and a current minute sound indicator member (not shown).
  • the movement comprises a first control lever 6, minutes, associated with a first minute cam 8 to be driven from a mobile watch movement (not shown) to take a turn on itself in one hour, in a known manner.
  • the minute control lever 6 is also associated with a second minute cam 10 whose function will be explained later.
  • the minute control lever 6 is intended to be pivotally mounted, with reference to a shaft 12, on a frame member of the watch movement not shown for clarity.
  • a minute spring 14 is arranged to exert a force on the minute control lever 6 and tend to rotate it in the clockwise direction on the figure 1 .
  • the minute control lever 6 has first and second teeth 16, 18 arranged in engagement, respectively, with a minute display mobile 20, intended to carry the display member minutes 4, and a mobile audible minute indication for operating a minute striking hammer (not shown).
  • the watch movement includes a first hour control lever 26, associated with a first hour cam 28 intended to be driven from a mobile watch movement (not shown) to make a turn on itself in twelve hours, in a known manner.
  • the first hour control lever 26 is also associated with a second hour cam 30 whose function will be explained later.
  • the first hour control lever 26 is intended to be pivotally mounted, with reference to a shaft 32, on a frame member of the clockwork movement not shown for clarity.
  • a first hour spring 34 is arranged to exert a force on the first hour control lever 26 and tend to rotate it in the clockwise direction on the figure 1 .
  • first hour control lever 26 comprises first and second teeth 36, 38 arranged in engagement, respectively, with a first hours display mobile 40, intended to drive the first display member hours 1, and an hours 44 sound indicating wheel for operating an hour striking hammer (numeral 3 on the figure 8 ).
  • the first spring of hours 34 acts on the first lever hours control 26 through the first display mobile hours 40.
  • the watch movement illustrated by way of example comprises a second hours control lever 46, associated with a first additional hours cam 47, coaxial with the first hour cam 28 and integral in rotation with this last, as well as a second extra hour cam 48, coaxial with the second hour cam 30 and integral in rotation thereof.
  • the second hour control lever 46 is intended to be pivotally mounted, with reference to a shaft 52, on a frame element of the clockwork movement, not shown, for the sake of clarity.
  • a second hour spring 54 is arranged to exert a force on the second hour control lever 46 and tend to rotate it in the anti-clockwise direction on the figure 1 .
  • the second hour control lever 46 has a toothing 56 arranged in engagement with a second hour display mobile 60 for driving the second display member hours 2.
  • the second hour spring 54 acts on the second hour control lever 46 via the second hour display mobile 60.
  • the watch movement illustrated on the figure 1 also includes a drive train 64 for driving the second cams 10 minutes and 30 hours and the second cam of the additional hours 48 rotating.
  • the drive train comprises a first wheel 66, master, which is intended to be driven in response to a trigger event, such as for example a pressure of a user on an external control pusher provided on the corresponding timepiece .
  • a trigger event such as for example a pressure of a user on an external control pusher provided on the corresponding timepiece .
  • the triggering event is of another nature, such as a trigger that would be initiated automatically by the watch movement, without departing from the scope of the invention, as is the case. especially in the striking mechanisms in the passage.
  • the drive of the first wheel 66 it is preferably carried out here at a constant speed and from a source of energy mechanical, such as a barrel spring (not shown), the latter being controlled in such a way that the first wheel 66 performs a complete turn on itself in response to each trigger event.
  • a source of energy mechanical such as a barrel spring (not shown)
  • the elements making it possible to obtain such a result not being a direct part of the present invention will not be described in detail here.
  • the skilled person will not encounter any particular difficulty to implement them. It will be able to draw inspiration from the teaching of demand EP 1708050 A1 referred to above, or the application filed on 13 January 2012 under the EP12151128.1 in the name of the Claimant.
  • the drive train 64 comprises a series of references 68, 70 and 72, the first 68 is engaged with the first wheel 66 and the last 72 with a minute wheel 74, coaxial with the second cam minutes 10 which it is fixed in rotation.
  • the drive train 64 includes an additional gear 76 in direct contact with the first wheel 66 and with a hour wheel 78, coaxial with the second hour cam 30 and second hour cam 48, and integral with these in rotation.
  • the three control levers 6, 26 and 46 exhibit similar respective behaviors in response to a trigger event.
  • the figure 2 illustrates the indication mechanism according to the present invention when it is in its rest configuration, schematized by a scale of graduations 100 which can be provided on a timepiece dial, the indication member of the current minutes 4 being located opposite an indication R, except minute scale, but which could also coincide with the zero indication for example, without departing from the scope of the invention.
  • control lever 6 carries first and second spouts 101 and 102 intended to cooperate, respectively, with the first and second cams minutes 8 and 10.
  • the latter has an axially symmetrical shape whose axis passes through points respectively corresponding to the smallest radius of the cam or to a maximum indication radius, associated with the maximum indication position of the control lever 6, and its largest radius.
  • the point of the second cam against which the second spout 102 bears is part of an extended portion 104 of the periphery of the cam 10 defining a resting surface.
  • each step corresponds to the indication of a range of five minutes.
  • the first wheel 66 is driven to perform a full revolution on itself, in the clockwise direction, according to the present preferred embodiment of the invention, without limitation.
  • the drive train 64 is made in such a way that the minute wheel 74 also performs a complete turn on itself at the same time.
  • the kinematics of the minute control lever 6 has four successive phases related to the fact that the second cam 10 has three successive portions facing the second spout 102, namely the rest surface 104, a portion with decreasing radius 106, and then a portion with increasing radius 108 joining the other end of the resting surface. These three portions of the cam 10 here cover equal angles.
  • the figure 3 illustrates the configuration of the part of the mechanism of the figure 2 in the second phase of operation.
  • the first spout 101 is close to the first cam 8 which has been able to turn in the meantime since it is driven by the watch movement in the present case.
  • the first spout 101 finally comes into abutment against the periphery of the first cam 8 which then limits the rotational movement of the control lever 6, still driven by the spring 14, to take a position d indication corresponding to the current minutes to be displayed by the display member minutes 4, here thirty.
  • the second cam 10 continues its rotation even when the second spout 102 is no longer in contact with it, the control lever remaining stationary in this third phase of operation.
  • the end of the second portion 106 of the second cam 10 passes next to the second spout 102 without any contact, then the same with the beginning of the third portion 108 of the cam, radius increasing, until the radius of this third portion 108 is again sufficient for the second spout 102 to contact the second cam 10, to enter the fourth phase of operation.
  • the periphery of the second cam 10 then pushes the control lever 6 in the anti-clockwise rotation direction in the figures, in opposing the force of the spring 14, as illustrated on the figure 5 .
  • the position of the control lever 6 is then again defined by the radius of the second cam 10 throughout the return phase.
  • the minute wheel 74 ceases its rotation when the second spout 102 is opposite the beginning of the resting surface 104, after a complete turn, and the mechanism resumes its configuration. figure 2 .
  • the operating cycle of the mechanism is thus composed in four successive phases: a first rest phase of the control lever 6 of 8 seconds followed by a second descent phase of the control lever until it comes into contact with the first cam 8 of less than 8 seconds duration, an indication phase during which the control lever remains stationary and finally, a phase of recovery of the same duration as the descent phase.
  • the indication phase has a variable duration depending on the value of the current minutes to be indicated, which is 16 seconds less the sum of the durations of the phases of descent and ascent.
  • the indication mechanism can be arranged so that the minimum indication period during which the control lever remains stationary is equal to or greater than 3 seconds, or even 5 seconds.
  • the first spout 101 of the control lever 6 can come into contact with any point of the first cam 8, in particular, with its bearing having the weakest radius, which corresponds to at a maximum indication position.
  • the hypothetical displacement that the control lever should travel so that its second spout 102 passes from the rest surface 104 to the point of the second cam having the smallest radius or maximum indication radius, either greater than the displacement it presents passing from its rest position to its maximum indication position, otherwise the first nozzle could never reach the periphery of the first cam.
  • the rotation speed of the second cam 10 is significantly greater than that of the first cam 8, about 150 times here, which makes it possible to display a stable value. at a given moment to ensure a reliable reading.
  • those skilled in the art will not encounter any particular difficulty in adapting the relative speeds of the two cams according to their own needs and without departing from the scope of the invention. Indeed, a factor of 10 or 100 could be sufficient depending on the needs.
  • the shape of the periphery of the first cam 8 is not limiting. It is possible to provide that it is continuous rather than in steps without departing from the scope of the invention. In the illustrated case, it may be advantageous to provide that the first spout 101 has a certain flexibility in order to prevent any damage that it could suffer if the triggering event were to coincide with its coming into contact with the end of a plateau. the first cam.
  • the figure 6 represents a view similar to those of Figures 2 to 5 for another part of the watchmaking movement of the figure 1 , namely a part relating to the indication of the hours.
  • first control lever hours 26 tends to rotate clockwise under the effect of the action of the spring 34 through the first mobile indication hours 40.
  • first and second spouts 201, 202 intended to cooperate, respectively, with the first and second hour cams 28, 30.
  • the first hour cam 28 comprises twelve respective constant spoke portions each of which is associated with the indication of a given time.
  • the second spout 202 is placed in abutment against a rest surface 204 of the second cam 30 to define the rest position of the control lever 26.
  • the first wheel 66 rotates and drives the second cam 30 in a clockwise rotation.
  • the second cam 30 then has a decreasing radius opposite the second nozzle 202, having the effect of pivoting the control lever in the clockwise direction of rotation.
  • the position of the control lever 26 is defined by the radius of the second cam as long as the first spout 201 has not come into contact with the first cam 28. From this moment, the lever maintains a fixed position, indication, for a duration of indication that depends on the value of current hours at a given time, as described above in relation to the current minutes.
  • the radius of the second cam 30 starts to grow again and, after a certain time, the periphery of the second cam resumes contact with the second nozzle 202 to exert on the lever a force going to the against that it undergoes the spring 34, to go up in the counterclockwise direction, to its initial rest position.
  • the movements of the control lever 26 cause a rotation of the first hours indicating mobile 40 and thus a displacement of the first display member hours 1.
  • the scale of graduations 200 is rectilinear here.
  • the mobile indicator 40 comprises a fork 210 at its free end in which is engaged the foot 212 of the display member 1 which can be guided in rectilinear translation in a slot in the dial (not visible), for example.
  • the first hour control lever 26 comprises a toothing 38 intended to drive a mobile indication hour 44, as will become clearer from the detailed description of the figure 8 .
  • the figure 7 illustrates, in a similar view to that of the figure 6 operating the second hours control lever 46 to drive the second display member hours 2 opposite the scale scale 200.
  • the second hour control lever 46 has first and second spouts 221, 222 for cooperating, respectively, with first and second additional cams 47, 48, similarly to what has just been described.
  • the cams 47 and 48 are respectively coaxial with the cams 28 and 30, being integral with them in rotation. However, they are out of phase with the latter to take into account the relative geometries and positions of the two control levers of the hours 6 and 26, as well as to ensure a complementary drive of the second display member hours 2 relative to the first member display 1 on the scale of graduations 200, or twelve steps.
  • the display member 2 may include a foot 224 engaged in the slot of the dial which thereby ensures the rectilinear guidance.
  • the figure 8 represents a perspective view of an additional detail of construction of the watch movement of the figure 1 .
  • the figure 8 illustrates how the sound indication mobile 44 makes it possible to make an audible indication of the current time, simultaneously with its display as just described.
  • the audible indication wheel 44 it is possible for the audible indication wheel 44 to have teeth with asymmetric teeth 230 intended to act on a hammer lift 3, via a hammer pawl (not visible). in a known manner.
  • the teeth 230 drive the lifts and the hammer 3 is rotated a number of times corresponding to the hours to indicate by ringing to hit a stamp (not visible), while at from the return of the control lever to its rest position, the teeth 230 actuate the hammer pawl, which has the effect of not causing the pivoting of the latter and therefore ringing.
  • a common minutes striking hammer is similarly provided for being actuated by the audible indication wheel (not visible).
  • the audible indication members are actuated to ring the hours and minutes, respectively, during the movement of the hours display members and during the movement of the minute display member towards their positions of 'indication, giving rise to a set of actions particularly harmonious and fun for the user.
  • each control lever can be mounted in rectilinear translation on the watch movement rather than in rotation, without departing from the scope of the present invention.
  • control levers 6 and 26 are preferably rotated at a constant speed, by the corresponding second cam, to ensure a stable frequency of the corresponding sound indications.
  • the implementation of the mechanism according to the present invention is not necessarily limited to such a particular characteristic.
  • the present invention is also not limited to the nature of the resilient members adapted to act on the control levers to position them in their respective rest positions, nor the means by which their force is transmitted to the corresponding control lever. Indeed, it appears from the figures that, on the one hand, the control lever 6 undergoes a direct action of its spring 14, via a suitable abutment surface formed in one of its ends, while the control levers 26 and 46 undergo the force of their spring via the corresponding indication mobile, via a meshing.
  • an on-demand indication mechanism of the type described in the present application comprising a control lever. an indication member held in the rest position against a resting surface and in which the latter is arranged so as to be retractable to provide a step-away operation; softness between the lever the resting surface, leaving the latter on the periphery of a cam.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Unknown Time Intervals (AREA)

Abstract

The mechanism has a drive wheel (64) and a cam (10) that are arranged such that the cam is rotated to exhibit a radius of maximum indication relative to a nozzle in response to a triggering event. The radius is provided relative to the nozzle such that a clearance necessary for the nozzle to move from a resting surface to a maximum indication radius surface corresponds to a movement of a control lever (6), where the movement is equal or greater than another movement in which the nozzle moves from its rest position to its maximum indication position.

Description

Domaine techniqueTechnical area

La présente invention concerne un mécanisme d'indication à la demande d'une information pour mouvement horloger, comprenant un levier de commande d'un organe d'indication de cette information, susceptible de coopérer au moins indirectement avec ce dernier pour indiquer l'information en réponse à un évènement de déclenchement prédéfini. Le levier de commande est destiné à être monté mobile sur un élément de bâti du mouvement horloger pour prendre une pluralité de positions d'indication, entre une position de repos et une position d'indication maximale. Le mécanisme comporte également une surface de repos, susceptible d'être escamotée en réponse à l'évènement de déclenchement et avec laquelle le levier de commande est destiné à coopérer dans sa position de repos, sous l'effet de l'action d'un organe élastique. Le mécanisme comprend en outre une première came, destinée à être montée pivotante sur un élément de bâti du mouvement horloger et à être entraînée par un premier mobile du mouvement horloger présentant un mouvement représentatif de l'information à indiquer, cette première came présentant une périphérie de rayon variable, représentatif de l'information à indiquer, dont une portion de rayon minimal associée à la position d'indication maximale. Il est par ailleurs prévu que le levier de commande présente un premier bec destiné à coopérer avec la périphérie de la première came pour prendre une position d'indication, sous l'effet de l'action d e l'organe élastique, en réponse à l'évènement de déclenchement, ainsi qu'un second bec agencé pour coopérer avec la surface de repos dans sa position de repos.The present invention relates to an on-demand indication mechanism for information for a watch movement, comprising a lever for controlling an indication member of this information, able to cooperate at least indirectly with the latter to indicate the information. in response to a predefined trigger event. The control lever is adapted to be movably mounted on a frame member of the watch movement to take a plurality of indication positions between a rest position and a maximum indication position. The mechanism also comprises a resting surface, which can be retracted in response to the trigger event and with which the control lever is intended to cooperate in its rest position, under the effect of the action of a elastic member. The mechanism further comprises a first cam, intended to be pivotally mounted on a frame member of the watch movement and to be driven by a first mobile of the watch movement having a movement representative of the information to be indicated, this first cam having a periphery of variable radius, representative of the information to be indicated, including a portion of minimum radius associated with the maximum indication position. It is further provided that the control lever has a first nose intended to cooperate with the periphery of the first cam to assume an indicating position, under the effect of the action of the elastic member, in response to the triggering event, and a second spout arranged to cooperate with the resting surface in its rest position.

Plus précisément, l'invention a pour objet un tel mécanisme d'indication permettant d'indiquer l'information concernée de manière visuelle ou sonore.More specifically, the subject of the invention is such an indication mechanism making it possible to indicate the information concerned in a visual or audible manner.

Par ailleurs, l'invention concerne également un mouvement horloger comportant un tel mécanisme d'indication ainsi qu'une pièce d'horlogerie munie d'un tel mouvement horloger.Furthermore, the invention also relates to a watch movement comprising such an indication mechanism and a timepiece provided with such a watch movement.

Par indication à la demande, on comprendra que l'indication est réalisée en réponse à une action d'un utilisateur, mais elle pourra également être réalisée en réponse à la survenue d'un évènement prédéfini lié au fonctionnement normal du mouvement horloger par exemple, à l'instar d'une sonnerie au passage.By indication on demand, it will be understood that the indication is made in response to an action of a user, but it may also be performed in response to the occurrence of a predefined event related to the normal operation of the watch movement for example, like a bell in the way.

Etat de la techniqueState of the art

Des mécanismes similaires sont déjà mis en oeuvre dans des mouvements horlogers de type à sonnerie.Similar mechanisms are already implemented in clock-type watch movements.

La demande EP 1708050 A1 décrit un mouvement horloger de type à répétition minutes qui comporte un mécanisme répondant aux caractéristiques énoncées ci-dessus. Ce mécanisme comprend en particulier une pièce de sonnerie présentant une position de repos et susceptible d'être déplacée en rotation pour prendre une pluralité de positions d'indication, en relation avec une came appelée limaçon des heures, sous l'effet d'un ressort. A cet effet, la pièce de sonnerie présente un premier bec destiné à coopérer avec la périphérie du limaçon des heures pour prendre une position d'indication, en réponse par exemple à une action d'un utilisateur sur un organe de commande externe de la pièce d'horlogerie. La pièce de sonnerie présente un second bec coopérant avec une surface de repos escamotable, portée par une commande des quarts, contre laquelle elle est maintenue en appui par le ressort dans sa position de repos. En réponse à l'action de l'utilisateur, le second bec échappe à la surface de repos pour permettre à la pièce de sonnerie d'aller prendre sa position d'indication, avant d'être ramenée jusqu'en position de repos en fin de cycle d'indication, par une roue entraîneuse, tout en actionnant une levée des heures agencée pour commander un marteau frappant sur un timbre pour indiquer l'heure correspondante.Requirement EP 1708050 A1 discloses a minute-repeating clock movement that has a mechanism that meets the above specifications. This mechanism comprises in particular a ringing part having a rest position and being able to be displaced in rotation to take a plurality of indication positions, in relation to a cam called hour limb, under the effect of a spring . For this purpose, the striking piece has a first nose intended to cooperate with the periphery of the hours snail to take an indication position, in response for example to an action of a user on an external control member of the workpiece. watchmaking. The striking piece has a second nozzle cooperating with a retractable resting surface, carried by a quarter control, against which it is supported by the spring in its rest position. In response to the action of the user, the second spout escapes the resting surface to allow the ringer to go to its indicating position, before being returned to the rest position at the end. indication cycle, by a driving wheel, while operating a lifting hours arranged to control a hammer striking a stamp to indicate the corresponding time.

On notera que la roue entraîneuse est elle-même entraînée à partir du dévidage d'un barillet, libéré par l'action de l'utilisateur, dont la durée ou l'angle de dévidage est contrôlé par une roue de comptage, également entraînée à partir du même barillet et, agencée pour faire un demi-tour avant d'être verrouillée.Note that the driving wheel is itself driven from the unwinding of a barrel, released by the action of the user, whose duration or the unwinding angle is controlled by a counting wheel, also driven from the same barrel and arranged to make a U-turn before being locked.

Ces mécanismes de sonnerie comprennent généralement un régulateur de vitesse contrôlant la vitesse de dévidage du barillet à partir de laquelle est défini le rythme des frappes du marteau sur le timbre qui, bien entendu, doit être le plus régulier possible.These striking mechanisms generally comprise a speed regulator controlling the unwinding speed of the barrel from which is defined the rhythm of the strikes of the hammer on the stamp which, of course, must be as regular as possible.

Hormis la complexité élevée que présentent généralement ces mouvements, les composants mis en oeuvre sont parfois fragiles et peuvent être endommagés par des chocs, soit de fonctionnement, soit accidentels, lorsque la montre tombe par exemple. On notera également le risque d'usure rapide de certains composants du fait de frottements parfois importants intervenant dans le fonctionnement de ces mécanismes, qui peut se traduire en une perte de précision intolérable pour la gamme de montres concernée.Apart from the high complexity usually presented by these movements, the components used are sometimes fragile and can be damaged by shocks, either operating or accidental, when the watch falls for example. Note also the risk of rapid wear of some components because of sometimes significant friction involved in the operation of these mechanisms, which can result in an intolerable loss of accuracy for the range of watches concerned.

Par ailleurs, le ressort du barillet utilisé pour entraîner le levier de commande doit être suffisamment fort pour surmonter la force du ressort agissant sur ce dernier et permettre son retour à sa position de repos, ce qui peut poser des problèmes supplémentaires liés à l'encombrement global du mécanisme.Furthermore, the spring of the cylinder used to drive the control lever must be strong enough to overcome the force of the spring acting on the latter and allow it to return to its rest position, which can cause additional problems related to the clutter overall mechanism.

Divulgation de l'inventionDisclosure of the invention

Un but principal de la présente invention est de présenter une alternative aux mécanismes d'indication à la demande connus de l'art antérieur, en proposant un tel mécanisme dans lequel les contraintes subies par les composants mobiles sont diminuées, leur garantissant notamment une meilleure durabilité, du fait notamment d'une cinématique de fonctionnement plus douce.A main object of the present invention is to present an alternative to the on-demand indication mechanisms known from the prior art, by proposing such a mechanism in which the stresses to which the mobile components are subjected are diminished, notably guaranteeing them better durability. , in particular because of a smoother running kinematics.

A cet effet, la présente invention concerne plus particulièrement un mécanisme du type mentionné plus haut, caractérisé par le fait
que la surface de repos est agencée sur une périphérie de rayon variable d'une seconde came, cette dernière étant destinée à être montée pivotante sur un élément de bâti du mouvement horloger et à être entraînée par un rouage d'entraînement, et
que le rouage d'entraînement et la seconde came sont agencés de telle manière que, en réponse à l'évènement de déclenchement, la seconde came est entraînée en rotation pour présenter un rayon d'indication maximale en regard du second bec tel que la course nécessaire à ce dernier pour passer de la surface de repos au rayon d'indication maximale correspond à un déplacement du levier de commande égal ou supérieur au déplacement qu'il présente pour passer de sa position de repos à sa position d'indication maximale.For this purpose, the present invention relates more particularly to a mechanism of the type mentioned above, characterized in that
that the resting surface is arranged on a periphery of variable radius of a second cam, the latter being intended to be pivotally mounted on a frame member of the watch movement and to be driven by a drive train, and
that the drive train and the second cam are arranged in such a way that, in response to the triggering event, the second cam is rotated to present a maximum indication radius opposite the second nose such as the race. required for the latter to move from the resting surface to the maximum indication radius corresponds to a displacement of the control lever equal to or greater than the displacement it has to move from its rest position to its maximum indication position.

Grâce à ces caractéristiques, le décrochement du mécanisme, à savoir le déverrouillage du levier de commande, est réalisé de manière plus douce que dans les mécanismes de l'art antérieur et garantit une meilleure durabilité des composants en jeu.Thanks to these characteristics, the recess of the mechanism, namely the release of the control lever, is performed in a gentler manner than in the mechanisms of the prior art and guarantees a better durability of the components involved.

De manière préférée, la périphérie de la seconde came présente un rayon dont la variation est sensiblement continue entre la surface de repos et le rayon d'indication maximale. Ainsi, la douceur du décrochement est encore améliorée. En outre, le levier de commande est retenu dans sa chute vers la première came et, l'établissement du contact entre son premier bec et la périphérie de cette dernière est moins brutal que dans les mécanismes de l'art antérieur.Preferably, the periphery of the second cam has a radius whose variation is substantially continuous between the rest surface and the maximum indication radius. Thus, the softness of the detachment is further improved. In addition, the control lever is retained in its fall towards the first cam and the establishment of the contact between its first nose and the periphery of the latter is less brutal than in the mechanisms of the prior art.

Selon un mode de réalisation préféré, le rouage d'entraînement et la variation du rayon de la périphérie de la seconde came sont agencés de telle manière que la vitesse de déplacement du levier de commande pour passer de sa position de repos à sa position d'indication est sensiblement constante.According to a preferred embodiment, the driving train and the variation of the radius of the periphery of the second cam are arranged in such a way that the speed of movement of the control lever to move from its rest position to its position of indication is substantially constant.

Grâce à cette caractéristique particulière, le déplacement du levier de commande peut être mis à profit pour actionner un marteau de sonnerie pour frapper un timbre avec une fréquence régulière, de manière similaire à ce qui est mis en oeuvre dans les mécanismes à sonnerie connus.With this particular feature, the movement of the control lever can be used to actuate a striking hammer to hit a timbre with a regular frequency, similar to what is implemented in known bell mechanisms.

Par ailleurs, de manière avantageuse, on peut prévoir que le rouage d'entraînement est agencé pour entraîner la seconde came en rotation à vitesse sensiblement constante et pour parcourir un angle prédéfini, par exemple 360 degrés.Furthermore, advantageously, it can be provided that the drive train is arranged to drive the second cam in rotation at a substantially constant speed and to traverse a predefined angle, for example 360 degrees.

Dans ce cas, la surface de repos est replacée dans sa position de fonction en fin de cycle de fonctionnement, c'est-à-dire lorsque la seconde came a effectué un tour complet sur elle-même. Ainsi, la seconde came guide les déplacements du levier de commande, en douceur, dans les sens de la descente et de la montée.In this case, the resting surface is returned to its function position at the end of the operating cycle, that is to say when the second cam has completed a complete turn on itself. Thus, the second cam guides the movements of the control lever, smoothly, in the direction of the descent and the rise.

De manière préférée, la seconde came est alors symétrique suivant un axe passant par la surface de repos et le rayon d'indication maximale.Preferably, the second cam is then symmetrical along an axis passing through the resting surface and the maximum indication radius.

En outre, on peut prévoir que la seconde came présente une portion étendue présentant une valeur de rayon égale au rayon d'indication maximale, l'axe de symétrie de la seconde came passant sensiblement par le milieu de la portion étendue.In addition, it can be provided that the second cam has an extended portion having a value of radius equal to the maximum indication radius, the axis of symmetry of the second cam passing substantially through the middle of the extended portion.

Suivant des variantes de réalisation préférées, on peut prévoir que la portion étendue et le rouage d'entraînement sont agencés de telle manière que le levier de commande est susceptible de rester dans sa position d'indication maximale pendant au moins 3 secondes, préférablement au moins 5 secondes, après y avoir été conduit en réponse à l'évènement de déclenchement.According to preferred embodiments, it can be provided that the extended portion and the drive train are arranged such that the control lever is likely to remain in its maximum indication position for at least 3 seconds, preferably at least 5 seconds, after being conducted in response to the trigger event.

On notera que le rouage d'entraînement pourra avantageusement être alimenté en énergie mécanique par un ressort de barillet qui pourra être calibré de manière relativement précise et ne nécessitera pas forcément de délivrer en sortie un couple aussi important que dans les mécanismes connus de ce type, en fonction de la forme donnée à la périphérie de la seconde came et de son rayon.Note that the drive train can advantageously be supplied with mechanical energy by a mainspring which can be calibrated in a relatively precise manner and will not necessarily need to output as much torque as in the known mechanisms of this type, depending on the shape given to the periphery of the second cam and its radius.

En outre, le levier de commande est préférablement destiné à être monté rotatif sur un élément de bâti du mouvement horloger. Dans ce cas, on peut prévoir
qu'il présente avantageusement un axe de pivotement en référence auquel il est destiné à pivoter ainsi qu'au moins une surface de butée, située à une première distance prédéfinie de l'axe de pivotement et, agencée de manière à subir l'effet de l'action de l'organe élastique visant à appliquer le levier de commande contre la surface de repos,
que, d'une part, la surface de butée et, d'autre part, les premier et second becs sont agencés de part et d'autre de l'axe de pivotement du levier de commande, et
que le second bec est situé à une distance de l'axe de pivotement supérieure à la première distance prédéfinie.In addition, the control lever is preferably intended to be rotatably mounted on a frame member of the watch movement. In this case, we can foresee
it advantageously has a pivot axis reference to which it is intended to pivot and at least one abutment surface, located at a first predetermined distance from the pivot axis and arranged to undergo the effect of the action of the elastic member to apply the control lever against the resting surface,
that, on the one hand, the abutment surface and, on the other hand, the first and second spouts are arranged on either side of the pivot axis of the control lever, and
the second spout is located at a distance from the pivot axis greater than the first predefined distance.

Grâce à ces caractéristiques supplémentaires, un bras de levier est obtenu pour l'application de la force fournie par le rouage d'entraînement permettant de surmonter la force exercée par l'organe élastique sur le levier de commande. Ainsi, l'encombrement du barillet éventuellement utilisé pour entraîner le rouage d'entraînement peut être limité en référence aux mécanismes connus dans l'état de la technique.With these additional features, a lever arm is obtained for the application of the force provided by the drive train to overcome the force exerted by the resilient member on the control lever. Thus, the size of the cylinder possibly used to drive the drive train can be limited by reference to the mechanisms known in the state of the art.

On pourra avantageusement prévoir que la vitesse de rotation de la seconde came est supérieure à celle de la première came, préférablement d'au moins un facteur 10, encore plus préférablement d'au moins un facteur 100. Ainsi, l'indication de l'information peut être effectuée avec une durée telle qu'une variation éventuelle de la valeur de cette information ne nuit pas à son indication.It can be advantageously provided that the rotational speed of the second cam is greater than that of the first cam, preferably at least a factor of 10, still more preferably at least a factor of 100. Thus, the indication of the information can be carried out with a duration such that a possible variation of the value of this information does not harm its indication.

L'invention concerne également un mouvement horloger comportant un mécanisme d'indication du type qui vient d'être décrit, agencé pour entraîner un organe d'indication visuelle et/ou un organe d'indication sonore d'une information, ainsi qu'une pièce d'horlogerie munie d'un tel mouvement horloger.The invention also relates to a watch movement comprising an indication mechanism of the type which has just been described, arranged to drive a visual indication member and / or a sound indicating member of an information, as well as a timepiece provided with such a watch movement.

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: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:

- la figure 1 représente une vue générale en perspective d'une partie d'un mouvement horloger comportant plusieurs mécanismes d'indication selon un mode de réalisation préféré de la présente invention;- the figure 1 is a general perspective view of a portion of a watch movement having a plurality of indication mechanisms according to a preferred embodiment of the present invention;

- la figure 2 représente une vue de dessus simplifiée d'un premier mécanisme d'indication de la figure 1, dans une première configuration;- the figure 2 represents a simplified top view of a first indication mechanism of the figure 1 in a first configuration;

- la figure 3 représente une vue de dessus simplifiée du premier mécanisme d'indication de la figure 2, dans une seconde configuration;- the figure 3 represents a simplified top view of the first indication mechanism of the figure 2 in a second configuration;

- la figure 4 représente une vue de dessus simplifiée du premier mécanisme d'indication de la figure 2, dans une troisième configuration;- the figure 4 represents a simplified top view of the first indication mechanism of the figure 2 in a third configuration;

- la figure 5 représente une vue de dessus simplifiée du premier mécanisme d'indication de la figure 2, dans une quatrième configuration;- the figure 5 represents a simplified top view of the first indication mechanism of the figure 2 in a fourth configuration;

- la figure 6 représente une vue de dessus simplifiée d'un second mécanisme d'indication de la figure 1;- the figure 6 represents a simplified top view of a second mechanism for indicating the figure 1 ;

- la figure 7 représente une vue de dessus simplifiée d'un troisième mécanisme d'indication de la figure 1, et- the figure 7 represents a simplified top view of a third mechanism for indicating the figure 1 , and

- la figure 8 représente une vue en perspective simplifiée d'un quatrième détail de construction du mouvement horloger de la figure 1, selon une variante de réalisation préférée.- the figure 8 represents a simplified perspective view of a fourth construction detail of the watchmaking movement of the figure 1 according to a preferred embodiment variant.

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

La figure 1 représente une vue générale en perspective d'une partie d'un mouvement horloger comportant plusieurs mécanismes d'indication selon un mode de réalisation préféré de la présente invention.The figure 1 represents a general perspective view of a portion of a watch movement having a plurality of indication mechanisms according to a preferred embodiment of the present invention.

Le mouvement horloger illustré sur la figure 1 permet d'illustrer une partie des innombrables possibilités offertes par le mécanisme d'indication selon la présente invention puisqu'en réalité il combine trois mécanismes de ce type, fonctionnant de manières similaires.The watch movement illustrated on the figure 1 illustrates some of the innumerable possibilities offered by the indication mechanism according to the present invention since in reality it combines three mechanisms of this type, operating in similar ways.

Plus précisément, le mouvement horloger de la figure 1 est destiné à assurer l'entraînement de premier et second organes d'affichage des heures courantes 1, 2, d'un organe d'indication sonore des heures courantes (référence numérique 3 sur la figure 8) ainsi que d'un organe d'affichage des minutes courantes 4 et d'un organe d'indication sonore des minutes courantes (non représenté).More specifically, the watch movement of the figure 1 is intended to drive first and second display members of the current hours 1, 2, of a current hours sound indicating member (reference numeral 3 on the figure 8 ) as well as a current minute display member 4 and a current minute sound indicator member (not shown).

Dans ce but, le mouvement comporte un premier levier de commande 6, des minutes, associé à une première came des minutes 8 destinée à être entraînée à partir d'un mobile du mouvement horloger (non représenté) pour faire un tour sur elle-même en une heure, de manière connue.For this purpose, the movement comprises a first control lever 6, minutes, associated with a first minute cam 8 to be driven from a mobile watch movement (not shown) to take a turn on itself in one hour, in a known manner.

Le levier de commande des minutes 6 est également associé à une seconde came des minutes 10 dont la fonction sera exposée plus loin.The minute control lever 6 is also associated with a second minute cam 10 whose function will be explained later.

Le levier de commande des minutes 6 est destiné à être monté pivotant, en référence à un arbre 12, sur un élément de bâti du mouvement horloger non représenté pour plus de clarté.The minute control lever 6 is intended to be pivotally mounted, with reference to a shaft 12, on a frame member of the watch movement not shown for clarity.

Un ressort des minutes 14 est agencé de manière à exercer une force sur le levier de commande des minutes 6 et tendre à le faire tourner dans le sens de rotation horaire sur la figure 1.A minute spring 14 is arranged to exert a force on the minute control lever 6 and tend to rotate it in the clockwise direction on the figure 1 .

Par ailleurs, le levier de commande des minutes 6 comporte des première et seconde dentures 16, 18 agencées en prise, respectivement, avec un mobile d'affichage des minutes 20, destiné à porter l'organe d'affichage des minutes 4, et un mobile d'indication sonore des minutes destiné à actionner un marteau de sonnerie des minutes (non représenté).Furthermore, the minute control lever 6 has first and second teeth 16, 18 arranged in engagement, respectively, with a minute display mobile 20, intended to carry the display member minutes 4, and a mobile audible minute indication for operating a minute striking hammer (not shown).

De manière similaire, le mouvement horloger comporte un premier levier de commande des heures 26, associé à une première came des heures 28 destinée à être entraînée à partir d'un mobile du mouvement horloger (non représenté) pour faire un tour sur elle-même en douze heures, de manière connue.Similarly, the watch movement includes a first hour control lever 26, associated with a first hour cam 28 intended to be driven from a mobile watch movement (not shown) to make a turn on itself in twelve hours, in a known manner.

Le premier levier de commande des heures 26 est également associé à une seconde came des heures 30 dont la fonction sera exposée plus loin.The first hour control lever 26 is also associated with a second hour cam 30 whose function will be explained later.

Le premier levier de commande des heures 26 est destiné à être monté pivotant, en référence à un arbre 32, sur un élément de bâti du mouvement horloger non représenté pour plus de clarté.The first hour control lever 26 is intended to be pivotally mounted, with reference to a shaft 32, on a frame member of the clockwork movement not shown for clarity.

Un premier ressort des heures 34 est agencé de manière à exercer une force sur le premier levier de commande des heures 26 et tendre à le faire tourner dans le sens de rotation horaire sur la figure 1.A first hour spring 34 is arranged to exert a force on the first hour control lever 26 and tend to rotate it in the clockwise direction on the figure 1 .

Par ailleurs, le premier levier de commande des heures 26 comporte des première et seconde dentures 36, 38 agencées en prise, respectivement, avec un premier mobile d'affichage des heures 40, destiné à entraîner le premier organe d'affichage des heures 1, et un mobile d'indication sonore des heures 44 destiné à actionner un marteau de sonnerie des heures (référence numérique 3 sur la figure 8).Furthermore, the first hour control lever 26 comprises first and second teeth 36, 38 arranged in engagement, respectively, with a first hours display mobile 40, intended to drive the first display member hours 1, and an hours 44 sound indicating wheel for operating an hour striking hammer (numeral 3 on the figure 8 ).

On notera qu'ici, à titre illustratif non limitatif, le premier ressort des heures 34 agit sur le premier levier de commande des heures 26 par l'intermédiaire du premier mobile d'affichage des heures 40.Note that here, by way of nonlimiting illustration, the first spring of hours 34 acts on the first lever hours control 26 through the first display mobile hours 40.

En outre, de manière optionnelle, le mouvement horloger illustré à titre d'exemple comporte un second levier de commande des heures 46, associé à une première came des heures supplémentaire 47, coaxiale à la première came des heures 28 et solidaire en rotation de cette dernière, ainsi qu'à une seconde came des heures supplémentaire 48, coaxiale à la seconde came des heures 30 et solidaire en rotation de cette dernière.In addition, optionally, the watch movement illustrated by way of example comprises a second hours control lever 46, associated with a first additional hours cam 47, coaxial with the first hour cam 28 and integral in rotation with this last, as well as a second extra hour cam 48, coaxial with the second hour cam 30 and integral in rotation thereof.

Le second levier de commande des heures 46 est destiné à être monté pivotant, en référence à un arbre 52, sur un élément de bâti du mouvement horloger non représenté pour plus de clarté.The second hour control lever 46 is intended to be pivotally mounted, with reference to a shaft 52, on a frame element of the clockwork movement, not shown, for the sake of clarity.

Un second ressort des heures 54 est agencé de manière à exercer une force sur le second levier de commande des heures 46 et tendre à le faire tourner dans le sens de rotation anti-horaire sur la figure 1.A second hour spring 54 is arranged to exert a force on the second hour control lever 46 and tend to rotate it in the anti-clockwise direction on the figure 1 .

Par ailleurs, le second levier de commande des heures 46 comporte une denture 56 agencée en prise avec un second mobile d'affichage des heures 60 destiné à entraîner le second organe d'affichage des heures 2.Furthermore, the second hour control lever 46 has a toothing 56 arranged in engagement with a second hour display mobile 60 for driving the second display member hours 2.

On notera également que le second ressort des heures 54 agit sur le second levier de commande des heures 46 par l'intermédiaire du second mobile d'affichage des heures 60.It will also be noted that the second hour spring 54 acts on the second hour control lever 46 via the second hour display mobile 60.

Le mouvement horloger illustré sur la figure 1 comporte également un rouage d'entraînement 64 destiné à entraîner les secondes cames des minutes 10 et des heures 30 ainsi que la seconde came des heures supplémentaire 48 en rotation.The watch movement illustrated on the figure 1 also includes a drive train 64 for driving the second cams 10 minutes and 30 hours and the second cam of the additional hours 48 rotating.

Le rouage d'entraînement comprend une première roue 66, maîtresse, qui est destinée à être entraînée en réponse à un évènement de déclenchement, comme par exemple une pression d'un utilisateur sur un poussoir de commande externe prévu sur la pièce d'horlogerie correspondante. En alternative, il est possible de prévoir que l'évènement de déclenchement est d'une autre nature, comme par exemple un déclenchement qui serait initié automatiquement par le mouvement horloger, sans sortir du cadre de l'invention, comme c'est le cas notamment dans les mécanismes de sonnerie au passage.The drive train comprises a first wheel 66, master, which is intended to be driven in response to a trigger event, such as for example a pressure of a user on an external control pusher provided on the corresponding timepiece . Alternatively, it is possible to predict that the triggering event is of another nature, such as a trigger that would be initiated automatically by the watch movement, without departing from the scope of the invention, as is the case. especially in the striking mechanisms in the passage.

En ce qui concerne l'entraînement de la première roue 66, il est réalisé ici, de manière préférée, à vitesse constante et à partir d'une source d'énergie mécanique, comme par exemple un ressort de barillet (non représenté), celle-ci étant commandée de telle manière que la première roue 66 effectue un tour complet sur elle-même en réponse à chaque évènement de déclenchement. Les éléments permettant d'obtenir un tel résultat ne faisant pas directement partie de la présente invention, ils ne seront pas décrits en détail ici. L'homme du métier ne rencontrera pas de difficulté particulière pour les mettre en oeuvre. Il pourra notamment s'inspirer de l'enseignement de la demande EP 1708050 A1 citée plus haut, ou encore de la demande déposée le 13 janvier 2012 sous le No EP12151128.1 au nom de la Demanderesse.As regards the drive of the first wheel 66, it is preferably carried out here at a constant speed and from a source of energy mechanical, such as a barrel spring (not shown), the latter being controlled in such a way that the first wheel 66 performs a complete turn on itself in response to each trigger event. The elements making it possible to obtain such a result not being a direct part of the present invention will not be described in detail here. The skilled person will not encounter any particular difficulty to implement them. It will be able to draw inspiration from the teaching of demand EP 1708050 A1 referred to above, or the application filed on 13 January 2012 under the EP12151128.1 in the name of the Claimant.

D'une part, le rouage d'entraînement 64 comprend une série de renvois 68, 70 et 72, dont le premier 68 est en prise avec la première roue 66 et le dernier 72 avec une roue de minutes 74, coaxiale à la seconde came des minutes 10 dont elle est solidaire en rotation.On the one hand, the drive train 64 comprises a series of references 68, 70 and 72, the first 68 is engaged with the first wheel 66 and the last 72 with a minute wheel 74, coaxial with the second cam minutes 10 which it is fixed in rotation.

D'autre part, le rouage d'entraînement 64 comprend un renvoi supplémentaire 76 en prise directe avec la première roue 66 et avec une roue des heures 78, coaxiale aux seconde came des heures 30 et seconde came des heures supplémentaire 48, et solidaire de celles-ci en rotation.On the other hand, the drive train 64 includes an additional gear 76 in direct contact with the first wheel 66 and with a hour wheel 78, coaxial with the second hour cam 30 and second hour cam 48, and integral with these in rotation.

Les trois leviers de commande 6, 26 et 46 présentent des comportements respectifs similaires en réponse à un évènement de déclenchement.The three control levers 6, 26 and 46 exhibit similar respective behaviors in response to a trigger event.

Le comportement du levier de commande des minutes 6 va être décrit plus en détail en relation avec les figures 2 à 5, qui illustrent la partie correspondante et pertinente du mécanisme d'indication selon la présente invention dans plusieurs configurations successives.The behavior of the minute control lever 6 will be described in more detail in relation to the Figures 2 to 5 , which illustrate the corresponding and relevant part of the indication mechanism according to the present invention in several successive configurations.

La figure 2 illustre le mécanisme d'indication selon la présente invention lorsqu'il est dans sa configuration de repos, schématisée par une échelle de graduations 100 qui peut être prévue sur un cadran de pièce d'horlogerie, l'organe d'indication des minutes courantes 4 étant situé en regard d'une indication R, hors échelle des minutes, mais qui pourrait aussi bien coïncider avec l'indication zéro par exemple, sans sortir du cadre de l'invention.The figure 2 illustrates the indication mechanism according to the present invention when it is in its rest configuration, schematized by a scale of graduations 100 which can be provided on a timepiece dial, the indication member of the current minutes 4 being located opposite an indication R, except minute scale, but which could also coincide with the zero indication for example, without departing from the scope of the invention.

Il ressort plus clairement de la figure 2 que le levier de commande 6 porte des premier et second becs 101 et 102 destinés à coopérer, respectivement, avec les première et seconde cames des minutes 8 et 10.It is clearer from the figure 2 that the control lever 6 carries first and second spouts 101 and 102 intended to cooperate, respectively, with the first and second cams minutes 8 and 10.

Dans cette configuration de repos, le levier est maintenu en position de repos, sous l'effet de l'action du ressort 14, par coopération de son second bec 102 avec la périphérie de la seconde came des minutes 10.In this rest configuration, the lever is held in the rest position, under the effect of the action of the spring 14, by the cooperation of its second spout 102 with the periphery of the second minute cam 10.

Cette dernière présente une forme à symétrie axiale dont l'axe passe par des points correspondant respectivement au plus petit rayon de la came ou à un rayon d'indication maximale, associé à la position d'indication maximale du levier de commande 6, et à son plus grand rayon. Le point de la seconde came contre lequel le second bec 102 est en appui fait partie d'une portion étendue 104 de la périphérie de la came 10 définissant une surface de repos.The latter has an axially symmetrical shape whose axis passes through points respectively corresponding to the smallest radius of the cam or to a maximum indication radius, associated with the maximum indication position of the control lever 6, and its largest radius. The point of the second cam against which the second spout 102 bears is part of an extended portion 104 of the periphery of the cam 10 defining a resting surface.

On constate que dans cette position de repos du levier de commande 6, la périphérie de la première came 8 est située hors de portée du premier bec 101. Ainsi, la position du levier de commande 6 est uniquement définie par la seconde came 10.It can be seen that in this rest position of the control lever 6, the periphery of the first cam 8 is located out of reach of the first spout 101. Thus, the position of the control lever 6 is defined solely by the second cam 10.

On notera que la périphérie de la première came 8 illustrée ici présente douze paliers à rayons respectifs constants. Ainsi, chaque palier correspond à l'indication d'une plage de cinq minutes.Note that the periphery of the first cam 8 shown here has twelve constant respective spoke bearings. Thus, each step corresponds to the indication of a range of five minutes.

En réponse à un évènement de déclenchement, la première roue 66 est entraînée pour effectuer un tour complet sur elle-même, dans le sens de rotation horaire, selon le présent mode de réalisation préféré de l'invention, à titre non limitatif.In response to a trigger event, the first wheel 66 is driven to perform a full revolution on itself, in the clockwise direction, according to the present preferred embodiment of the invention, without limitation.

Le rouage d'entraînement 64 est réalisé de telle manière que la roue des minutes 74 effectue également un tour complet sur elle-même dans le même temps.The drive train 64 is made in such a way that the minute wheel 74 also performs a complete turn on itself at the same time.

Ainsi, la cinématique du levier de commande des minutes 6 présente quatre phases successives liées au fait que la seconde came 10 présente trois portions successives en regard du second bec 102, à savoir la surface de repos 104, une portion à rayon décroissant 106, puis une portion à rayon croissant 108 rejoignant l'autre extrémité de la surface de repos. Ces trois portions de la came 10 recouvrent ici des angles égaux.Thus, the kinematics of the minute control lever 6 has four successive phases related to the fact that the second cam 10 has three successive portions facing the second spout 102, namely the rest surface 104, a portion with decreasing radius 106, and then a portion with increasing radius 108 joining the other end of the resting surface. These three portions of the cam 10 here cover equal angles.

La figure 3 illustre la configuration de la partie du mécanisme de la figure 2, dans la seconde phase de fonctionnement.The figure 3 illustrates the configuration of the part of the mechanism of the figure 2 in the second phase of operation.

Tant que le second bec 102 reste en appui contre la surface de repos 104, le levier de commande 6 reste immobile.As long as the second spout 102 remains resting against the resting surface 104, the control lever 6 remains stationary.

Lorsque la seconde came 10 présente sa portion à rayon décroissant 106, le levier de commande 6 est amené à tourner sous l'effet de l'action du ressort 14 pour suivre la périphérie de la came.When the second cam 10 has its decreasing radius portion 106, the control lever 6 is rotated by the action of the spring 14 to follow the periphery of the cam.

Dans le même temps, le premier bec 101 se rapproche de la première came 8 qui a pu tourner entretemps puisqu'elle est entraînée par le mouvement horloger dans le présent cas de figure.At the same time, the first spout 101 is close to the first cam 8 which has been able to turn in the meantime since it is driven by the watch movement in the present case.

Toutefois, dans la configuration de la figure 3, la came 8 est toujours hors de portée du premier bec 101, la position angulaire du levier de commande 6 restant contrôlée par la seconde came 10.However, in the configuration of the figure 3 , the cam 8 is always out of reach of the first spout 101, the angular position of the control lever 6 remaining controlled by the second cam 10.

La roue des minutes poursuivant sa rotation, le premier bec 101 finit par arriver en butée contre la périphérie de la première came 8 qui limite alors le mouvement de rotation du levier de commande 6, toujours entraîné par le ressort 14, pour prendre une position d'indication correspondant aux minutes courantes à afficher par l'organe d'affichage des minutes 4, ici trente.The minute wheel continuing its rotation, the first spout 101 finally comes into abutment against the periphery of the first cam 8 which then limits the rotational movement of the control lever 6, still driven by the spring 14, to take a position d indication corresponding to the current minutes to be displayed by the display member minutes 4, here thirty.

En effet, dans le même temps, la coopération de la denture 16 du levier de commande 6 avec le mobile d'indication des minutes 20 entraîne une rotation de l'organe d'affichage des minutes 4.Indeed, at the same time, the cooperation of the toothing 16 of the control lever 6 with the minute indication wheel 20 causes a rotation of the minute display member 4.

La seconde came 10 poursuit sa rotation quand bien même le second bec 102 n'est plus à son contact, le levier de commande restant immobile dans cette troisième phase de fonctionnement.The second cam 10 continues its rotation even when the second spout 102 is no longer in contact with it, the control lever remaining stationary in this third phase of operation.

La fin de la seconde portion 106 de la seconde came 10 passe en regard du second bec 102 sans qu'il n'y ait de contact, puis il en va de même avec le début de la troisième portion 108 de la came, à rayon croissant, jusqu'au moment où le rayon de cette troisième portion 108 est à nouveau suffisant pour que le second bec 102 reprenne contact avec la seconde came 10, pour entrer dans la quatrième phase de fonctionnement.The end of the second portion 106 of the second cam 10 passes next to the second spout 102 without any contact, then the same with the beginning of the third portion 108 of the cam, radius increasing, until the radius of this third portion 108 is again sufficient for the second spout 102 to contact the second cam 10, to enter the fourth phase of operation.

La périphérie de la seconde came 10 repousse alors le levier de commande 6 dans le sens de rotation anti-horaire sur les figures, en s'opposant à la force du ressort 14, tel qu'illustré sur la figure 5. La position du levier de commande 6 est alors à nouveau définie par le rayon de la seconde came 10 dans toute la phase de retour.The periphery of the second cam 10 then pushes the control lever 6 in the anti-clockwise rotation direction in the figures, in opposing the force of the spring 14, as illustrated on the figure 5 . The position of the control lever 6 is then again defined by the radius of the second cam 10 throughout the return phase.

La roue des minutes 74 cesse sa rotation lorsque le second bec 102 se trouve en regard du début de la surface de repos 104, après un tour complet, et le mécanisme reprend sa configuration de la figure 2.The minute wheel 74 ceases its rotation when the second spout 102 is opposite the beginning of the resting surface 104, after a complete turn, and the mechanism resumes its configuration. figure 2 .

En admettant, à titre d'exemple, que la roue des minutes 74 effectue un tour complet en 24 secondes, le cycle de fonctionnement du mécanisme se compose ainsi en quatre phases successives: une première phase de repos du levier de commande 6 de 8 secondes, suivie d'une seconde phase de descente du levier de commande jusqu'à entrer au contact de la première came 8 de durée inférieure à 8 secondes, une phase d'indication pendant laquelle le levier de commande reste immobile et enfin, une phase de remontée de même durée que la phase de descente. Ainsi, la phase d'indication présente une durée variable en fonction de la valeur des minutes courantes à indiquer, qui est de 16 secondes moins la somme des durées des phases de descente et de montée.Assuming, by way of example, that the minute wheel 74 performs a complete revolution in 24 seconds, the operating cycle of the mechanism is thus composed in four successive phases: a first rest phase of the control lever 6 of 8 seconds followed by a second descent phase of the control lever until it comes into contact with the first cam 8 of less than 8 seconds duration, an indication phase during which the control lever remains stationary and finally, a phase of recovery of the same duration as the descent phase. Thus, the indication phase has a variable duration depending on the value of the current minutes to be indicated, which is 16 seconds less the sum of the durations of the phases of descent and ascent.

De manière avantageuse, le mécanisme d'indication peut être agencé pour que la durée minimale d'indication pendant laquelle le levier de commande reste immobile est égale ou supérieure à 3 secondes, voire à 5 secondes.Advantageously, the indication mechanism can be arranged so that the minimum indication period during which the control lever remains stationary is equal to or greater than 3 seconds, or even 5 seconds.

Pour que le mécanisme fonctionne correctement, il convient de prévoir que le premier bec 101 du levier de commande 6 puisse entrer en contact avec tout point de la première came 8, en particulier, avec son palier présentant le rayon le plus faible, ce qui correspond à une position d'indication maximale. Dans ce cas, il faut que le déplacement hypothétique que devrait parcourir le levier de commande pour que son second bec 102 passe de la surface de repos 104 au point de la seconde came présentant le rayon le plus faible ou rayon d'indication maximale, soit supérieur au déplacement qu'il présente en passant de sa position de repos à sa position d'indication maximale, faute de quoi le premier bec ne pourrait jamais atteindre la périphérie de la première came.For the mechanism to work properly, it is necessary to provide that the first spout 101 of the control lever 6 can come into contact with any point of the first cam 8, in particular, with its bearing having the weakest radius, which corresponds to at a maximum indication position. In this case, it is necessary that the hypothetical displacement that the control lever should travel so that its second spout 102 passes from the rest surface 104 to the point of the second cam having the smallest radius or maximum indication radius, either greater than the displacement it presents passing from its rest position to its maximum indication position, otherwise the first nozzle could never reach the periphery of the first cam.

On notera que, dans le cas préféré décrit à titre illustratif non limitatif, la vitesse de rotation de la seconde came 10 est nettement plus importante que celle de la première came 8, environ 150 fois ici, ce qui permet d'afficher une valeur stable à un instant donné pour en assurer une lecture fiable. Bien entendu, l'homme du métier ne rencontrera pas de difficulté particulière à adapter les vitesses relatives des deux cames en fonction de ses propres besoins et sans sortir du cadre de l'invention. En effet, un facteur 10 ou 100 pourrait être suffisant en fonction des besoins.Note that, in the preferred case described by way of nonlimiting illustration, the rotation speed of the second cam 10 is significantly greater than that of the first cam 8, about 150 times here, which makes it possible to display a stable value. at a given moment to ensure a reliable reading. Of course, those skilled in the art will not encounter any particular difficulty in adapting the relative speeds of the two cams according to their own needs and without departing from the scope of the invention. Indeed, a factor of 10 or 100 could be sufficient depending on the needs.

Par ailleurs, la forme de la périphérie de la première came 8 n'est pas limitative. Il est possible de prévoir qu'elle est continue plutôt que par paliers sans sortir du cadre de l'invention. Dans le cas illustré, il peut être avantageux de prévoir que le premier bec 101 présente une certaine flexibilité pour prévenir tout dommage qu'il pourrait subir si l'évènement de déclenchement devait coïncider avec son entrée en contact avec la fin d'un palier de la première came.Moreover, the shape of the periphery of the first cam 8 is not limiting. It is possible to provide that it is continuous rather than in steps without departing from the scope of the invention. In the illustrated case, it may be advantageous to provide that the first spout 101 has a certain flexibility in order to prevent any damage that it could suffer if the triggering event were to coincide with its coming into contact with the end of a plateau. the first cam.

La fonction de la denture 18 du levier de commande des minutes 6 sera mieux comprise à la présentation de la fonction d'une denture similaire portée par le premier levier de commande des heures 26, en relation avec la description détaillée des figures 6 et 8 qui va suivre.The function of the toothing 18 of the minute control lever 6 will be better understood by presenting the function of a similar toothing carried by the first hour control lever 26, in connection with the detailed description of the figures 6 and 8 who will follow.

La figure 6 représente une vue similaire à celles des figures 2 à 5 pour une autre partie du mouvement horloger de la figure 1, à savoir une partie relative à l'indication des heures. On a schématisé une échelle de graduations des heures 200 qui pourrait être prévue sur le cadran d'une pièce d'horlogerie correspondante.The figure 6 represents a view similar to those of Figures 2 to 5 for another part of the watchmaking movement of the figure 1 , namely a part relating to the indication of the hours. We have schematized a scale of graduations hours 200 which could be provided on the dial of a timepiece corresponding.

Cette partie du mécanisme fonctionne de la même manière que ce qui vient d'être décrit pour l'indication des minutes.This part of the mechanism works in the same way as what has just been described for the indication of minutes.

En effet, le premier levier de commande des heures 26 tend à tourner dans le sens horaire sous l'effet de l'action du ressort 34 par l'intermédiaire du premier mobile d'indication des heures 40.Indeed, the first control lever hours 26 tends to rotate clockwise under the effect of the action of the spring 34 through the first mobile indication hours 40.

Il comprend des premier et second becs 201, 202 destinés à coopérer, respectivement, avec les première et seconde cames des heures 28, 30.It comprises first and second spouts 201, 202 intended to cooperate, respectively, with the first and second hour cams 28, 30.

La première came des heures 28 comprend douze portions à rayons respectifs constants dont chacun est associé à l'indication d'une heure donnée.The first hour cam 28 comprises twelve respective constant spoke portions each of which is associated with the indication of a given time.

Au repos, le second bec 202 est disposé en appui contre une surface de repos 204 de la seconde came 30 pour définir la position de repos du levier de commande 26.At rest, the second spout 202 is placed in abutment against a rest surface 204 of the second cam 30 to define the rest position of the control lever 26.

Après un évènement de déclenchement, la première roue 66 tourne et entraîne la seconde came 30 en rotation dans le sens horaire. La seconde came 30 présente alors un rayon décroissant en regard du second bec 202, ayant pour effet de faire pivoter le levier de commande dans le sens de rotation horaire.After a trigger event, the first wheel 66 rotates and drives the second cam 30 in a clockwise rotation. The second cam 30 then has a decreasing radius opposite the second nozzle 202, having the effect of pivoting the control lever in the clockwise direction of rotation.

Ainsi, pendant la rotation de la seconde came, la position du levier de commande 26 est définie par le rayon de la seconde came aussi longtemps que le premier bec 201 n'est pas entré au contact de la première came 28. A partir de ce moment, le levier conserve une position fixe, d'indication, pendant une durée d'indication qui dépend de la valeur des heures courantes à un instant donné, comme décrit plus haut en relation avec les minutes courantes.Thus, during the rotation of the second cam, the position of the control lever 26 is defined by the radius of the second cam as long as the first spout 201 has not come into contact with the first cam 28. From this moment, the lever maintains a fixed position, indication, for a duration of indication that depends on the value of current hours at a given time, as described above in relation to the current minutes.

Après un demi-tour, le rayon de la seconde came 30 recommence à croître et, au bout d'un certain temps, la périphérie de la seconde came reprend contact avec le second bec 202 pour exercer sur le levier une force allant à l'encontre de celle qu'il subit du ressort 34, pour le faire remonter dans le sens anti-horaire, jusqu'à sa position de repos initiale.After a half turn, the radius of the second cam 30 starts to grow again and, after a certain time, the periphery of the second cam resumes contact with the second nozzle 202 to exert on the lever a force going to the against that it undergoes the spring 34, to go up in the counterclockwise direction, to its initial rest position.

Les mouvements du levier de commande 26 entraînent une rotation du premier mobile d'indication des heures 40 et donc un déplacement du premier organe d'affichage des heures 1.The movements of the control lever 26 cause a rotation of the first hours indicating mobile 40 and thus a displacement of the first display member hours 1.

L'échelle de graduations 200 est rectiligne ici. Aussi, le mobile d'indication 40 comprend une fourchette 210 à son extrémité libre dans laquelle est engagé le pied 212 de l'organe d'affichage 1 qui peut être guidé en translation rectiligne dans une fente ménagée dans le cadran (non visibles), par exemple.The scale of graduations 200 is rectilinear here. Also, the mobile indicator 40 comprises a fork 210 at its free end in which is engaged the foot 212 of the display member 1 which can be guided in rectilinear translation in a slot in the dial (not visible), for example.

Comme signalé plus haut, le premier levier de commande des heures 26 comprend une denture 38 destinée à entraîner un mobile d'indication sonore des heures 44, tel que cela ressortira plus clairement de la description détaillée de la figure 8.As indicated above, the first hour control lever 26 comprises a toothing 38 intended to drive a mobile indication hour 44, as will become clearer from the detailed description of the figure 8 .

La figure 7 illustre, dans une vue similaire à celle de la figure 6, le fonctionnement du second levier de commande des heures 46 pour assurer l'entraînement du second organe d'affichage des heures 2 en regard de l'échelle de graduations 200.The figure 7 illustrates, in a similar view to that of the figure 6 operating the second hours control lever 46 to drive the second display member hours 2 opposite the scale scale 200.

Le second levier de commande des heures 46 comporte des premier et second becs 221, 222 destinés à coopérer, respectivement, avec des première et seconde cames supplémentaires 47, 48, de manière similaire à ce qui vient d'être décrit.The second hour control lever 46 has first and second spouts 221, 222 for cooperating, respectively, with first and second additional cams 47, 48, similarly to what has just been described.

Les cames 47 et 48 sont respectivement coaxiales aux cames 28 et 30, en étant solidaires d'elles en rotation. Elles sont toutefois déphasées par rapport à ces dernières pour prendre en compte les géométries et positions relatives des deux leviers de commande des heures 6 et 26, ainsi que pour assurer un entraînement complémentaire du second organe d'affichage des heures 2 par rapport au premier organe d'affichage 1 sur l'échelle de graduations 200, soit sur douze pas.The cams 47 and 48 are respectively coaxial with the cams 28 and 30, being integral with them in rotation. However, they are out of phase with the latter to take into account the relative geometries and positions of the two control levers of the hours 6 and 26, as well as to ensure a complementary drive of the second display member hours 2 relative to the first member display 1 on the scale of graduations 200, or twelve steps.

En effet, il ressort d'une comparaison des figures 6 et 7 que la position de repos du premier organe d'affichage des heures 1 est située avant une première graduation correspondant à douze heures, tandis que celle du second organe d'affichage des heures 2 est située après une dernière graduation correspondant également à douze heures. De ce fait, le déplacement de l'un de ces organes d'affichage est le complément de celui de l'autre, sur douze pas.Indeed, a comparison of figures 6 and 7 that the rest position of the first display member hours 1 is located before a first graduation corresponding to twelve hours, while that of the second display member hours 2 is located after a last graduation also corresponding to twelve hours. As a result, the displacement of one of these display members is the complement of that of the other, twelve steps.

De manière similaire à l'organe d'affichage 1, l'organe d'affichage 2 peut comporter un pied 224 engagé dans la fente du cadran qui en assure ainsi le guidage rectiligne.Similarly to the display member 1, the display member 2 may include a foot 224 engaged in the slot of the dial which thereby ensures the rectilinear guidance.

La figure 8 représente une vue en perspective d'un détail supplémentaire de construction du mouvement horloger de la figure 1.The figure 8 represents a perspective view of an additional detail of construction of the watch movement of the figure 1 .

Plus précisément, la figure 8 illustre comment le mobile d'indication sonore 44 permet de réaliser une indication sonore de l'heure courante, simultanément à son affichage tel qu'il vient d'être décrit.More specifically, the figure 8 illustrates how the sound indication mobile 44 makes it possible to make an audible indication of the current time, simultaneously with its display as just described.

A titre d'exemple non limitatif, on peut prévoir que le mobile d'indication sonore 44 porte une denture à dents 230 asymétriques destinées à agir sur une levée de marteau 3, par l'intermédiaire d'un cliquet de marteau (non visible), de manière connue. Ainsi, lors de la descente du premier levier de commande des heures 26, les dents 230 entraînent les levées et le marteau 3 est pivoté un nombre de fois correspondant aux heures à indiquer par sonnerie pour frapper un timbre (non visible), tandis que lors du retour du levier de commande vers sa position de repos, les dents 230 actionnent le cliquet de marteau, ce qui a pour effet de ne pas entraîner le pivotement de ce dernier et donc de sonnerie.By way of non-limiting example, it is possible for the audible indication wheel 44 to have teeth with asymmetric teeth 230 intended to act on a hammer lift 3, via a hammer pawl (not visible). in a known manner. Thus, during the descent of the first hour control lever 26, the teeth 230 drive the lifts and the hammer 3 is rotated a number of times corresponding to the hours to indicate by ringing to hit a stamp (not visible), while at from the return of the control lever to its rest position, the teeth 230 actuate the hammer pawl, which has the effect of not causing the pivoting of the latter and therefore ringing.

Un marteau de sonnerie des minutes courantes est prévu de manière similaire pour être actionné par le mobile d'indication sonore (non visible).A common minutes striking hammer is similarly provided for being actuated by the audible indication wheel (not visible).

On notera que, tandis que la surface de repos 104 de la seconde came des minutes 10 est étendue, celles des cames des heures 30 et 48 sont très courtes. Ainsi, en considérant le fonctionnement du mouvement dans son ensemble, il ressort qu'en réponse à un évènement de déclenchement, les organes d'affichage des heures courantes sont immédiatement entraînés pour indiquer les heures courantes, tandis que les organes d'affichage des minutes restent immobiles. Une fois seulement que les organes d'affichage des heures ont atteint leurs positions d'indication, l'organe d'affichage des minutes est entraîné vers sa position d'indication. Enfin, les trois organes d'affichage remontent simultanément vers leurs positions de repos respectives.It will be noted that while the rest surface 104 of the second minute cam 10 is extended, those of the hours 30 and 48 cams are very short. Thus, by considering the operation of the movement as a whole, it appears that in response to a triggering event, the display devices of the current hours are immediately driven to indicate the current hours, while the display organs minutes remain motionless. Only once the hour display members have reached their indicating positions, the minute display member is driven to its indicating position. Finally, the three display members back simultaneously to their respective rest positions.

Dans le même temps, les organes d'indication sonore sont actionnés pour sonner les heures et les minutes, respectivement, lors du déplacement des organes d'affichage des heures et lors du déplacement de l'organe d'affichage des minutes vers leurs positions d'indication, donnant ainsi lieu à un ensemble d'actions particulièrement harmonieux et ludique pour l'utilisateur.At the same time, the audible indication members are actuated to ring the hours and minutes, respectively, during the movement of the hours display members and during the movement of the minute display member towards their positions of 'indication, giving rise to a set of actions particularly harmonious and fun for the user.

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 le fait que plusieurs mécanismes d'indication selon la présente invention soient combinés dans un même mouvement horloger. En effet, on peut se contenter de ne mettre en oeuvre qu'un seul mécanisme de ce type, sans sortir du cadre de la présente invention.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 the fact that several mechanisms according to the present invention are combined in the same watch movement. Indeed, it can be satisfied to implement only one mechanism of this type, without departing from the scope of the present invention.

Par ailleurs, on notera que, de manière générale, chaque levier de commande peut être monté en translation rectiligne sur le mouvement horloger plutôt qu'en rotation, sans sortir du cadre de la présente invention.Furthermore, it will be noted that, in general, each control lever can be mounted in rectilinear translation on the watch movement rather than in rotation, without departing from the scope of the present invention.

On notera que les leviers de commande 6 et 26 sont préférablement pivotés à vitesse constante, par la seconde came correspondante, pour assurer une fréquence stable des indications sonores correspondantes. Toutefois, la mise en oeuvre du mécanisme selon la présente invention n'est pas nécessairement limitée à une telle caractéristique particulière.Note that the control levers 6 and 26 are preferably rotated at a constant speed, by the corresponding second cam, to ensure a stable frequency of the corresponding sound indications. However, the implementation of the mechanism according to the present invention is not necessarily limited to such a particular characteristic.

La présente invention n'est pas non plus limitée à la nature des organes élastiques prévus pour agir sur les leviers de commande pour les positionner dans leurs positions de repos respectives, ni aux moyens par lesquels leur force est transmise au levier de commande correspondant. En effet, il apparaît des figures que, d'une part, le levier de commande 6 subit une action directe de son ressort 14, via une surface de butée adaptée ménagée dans l'une de ses extrémités, tandis que les leviers de commande 26 et 46 subissent la force de leur ressort par l'intermédiaire du mobile d'indication correspondant, via un engrènement.The present invention is also not limited to the nature of the resilient members adapted to act on the control levers to position them in their respective rest positions, nor the means by which their force is transmitted to the corresponding control lever. Indeed, it appears from the figures that, on the one hand, the control lever 6 undergoes a direct action of its spring 14, via a suitable abutment surface formed in one of its ends, while the control levers 26 and 46 undergo the force of their spring via the corresponding indication mobile, via a meshing.

Bien entendu, le mécanisme qui a été décrit et illustré pourra également être mis en oeuvre avec toute autre information à indiquer que l'heure courante sans sortir du cadre de la présente invention.Of course, the mechanism that has been described and illustrated may also be implemented with any other information to indicate that the current time without departing from the scope of the present invention.

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 un mécanisme d'indication à la demande du type qui a été décrit dans la présente demande comportant un levier de commande d'un organe d'indication maintenue en position de repos contre une surface de repos et dans lequel cette dernière est agencée de manière à être escamotable pour assurer une opération de décrochement en douceur entre le levier la surface de repos, en ménageant cette dernière sur la périphérie d'une came.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 an on-demand indication mechanism of the type described in the present application comprising a control lever. an indication member held in the rest position against a resting surface and in which the latter is arranged so as to be retractable to provide a step-away operation; softness between the lever the resting surface, leaving the latter on the periphery of a cam.

Claims (15)

Mécanisme d'indication à la demande d'une information pour mouvement horloger, comprenant
un levier de commande (6, 26, 46) d'un organe d'indication (20, 40, 44, 60) de ladite information, susceptible de coopérer au moins indirectement avec ce dernier pour indiquer ladite information en réponse à un évènement de déclenchement prédéfini, ledit levier de commande (6, 26, 46) étant destiné à être monté mobile sur un élément de bâti du mouvement horloger pour prendre une pluralité de positions d'indication, entre une position de repos et une position d'indication maximale,
une surface de repos (104, 204), susceptible d'être escamotée en réponse audit évènement de déclenchement, avec laquelle ledit levier de commande (6, 26, 46) est destiné à coopérer dans sa position de repos, sous l'effet de l'action d'un organe élastique (14, 34, 54), et
une première came (8, 28, 47), destinée à être montée pivotante sur un élément de bâti du mouvement horloger et à être entraînée par un premier mobile du mouvement horloger présentant un mouvement représentatif de ladite information, ladite première came présentant une périphérie de rayon variable représentatif de ladite information dont une portion de rayon minimal associée à ladite position d'indication maximale,
ledit levier de commande (6, 26, 46) présentant un premier bec (101, 201, 221) destiné à coopérer avec la périphérie de ladite première came (8, 28, 47) pour prendre une position d'indication, sous l'effet de l'action dudit organe élastique (14, 34, 54), en réponse audit évènement de déclenchement, ainsi qu'un second bec (102, 202, 222) agencé pour coopérer avec ladite surface de repos (104, 204) dans sa position de repos,
caractérisé en ce que ladite surface de repos (104, 204) est agencée sur une périphérie de rayon variable d'une seconde came (10, 30, 48), cette dernière étant destinée à être montée pivotante sur un élément de bâti du mouvement horloger et à être entraînée par un rouage d'entraînement (64), et
en ce que ledit rouage d'entraînement (64) et ladite seconde came (10, 30, 48) sont agencés de telle manière que, en réponse audit événement de déclenchement, ladite seconde came est entraînée en rotation pour présenter un rayon d'indication maximale en regard dudit second bec (102, 202, 222) tel que la course nécessaire à ce dernier pour passer de ladite surface de repos (104, 204) audit rayon d'indication maximale correspond à un déplacement dudit levier de commande (6, 26, 46) égal ou supérieur au déplacement qu'il présente pour passer de sa position de repos à sa position d'indication maximale.On-demand indication mechanism for information for a watch movement, comprising
a control lever (6, 26, 46) of an indication member (20, 40, 44, 60) of said information, capable of cooperating at least indirectly with the latter to indicate said information in response to an event of predefined trigger, said control lever (6, 26, 46) being adapted to be movably mounted on a frame member of the watch movement to take a plurality of indication positions, between a rest position and a maximum indication position ,
a resting surface (104, 204) capable of being retracted in response to said trigger event, with which said control lever (6, 26, 46) is intended to cooperate in its rest position, under the effect of the action of an elastic member (14, 34, 54), and
a first cam (8, 28, 47), intended to be pivotally mounted on a frame member of the watch movement and to be driven by a first mobile of the watch movement having a movement representative of said information, said first cam having a periphery of variable radius representative of said information including a portion of minimum radius associated with said maximum indication position,
said control lever (6, 26, 46) having a first nose (101, 201, 221) for cooperating with the periphery of said first cam (8, 28, 47) to assume an indication position, under the effect of the action of said elastic member (14, 34, 54) in response to said triggering event, and a second nose (102, 202, 222) arranged to cooperate with said resting surface (104, 204) in his resting position,
characterized in that said resting surface (104, 204) is arranged on a periphery of variable radius of a second cam (10, 30, 48), the latter being intended to be pivotally mounted on a frame member of the watch movement and to be driven by a drive train (64), and
in that said drive train (64) and said second cam (10, 30, 48) are arranged such that, in response to said trip event, said second cam is rotated to present a maximum indication radius opposite said second nose (102, 202, 222) such that the travel required for the latter to pass from said resting surface (104, 204) to said maximum indication radius corresponds to a movement of said lever control (6, 26, 46) equal to or greater than the displacement it has to move from its rest position to its maximum indication position. Mécanisme selon la revendication 1, caractérisé en ce que la périphérie de ladite seconde came (10, 30, 48) présente un rayon dont la variation est sensiblement continue entre ladite surface de repos (104, 204) et ledit rayon d'indication maximale.Mechanism according to claim 1, characterized in that the periphery of said second cam (10, 30, 48) has a radius whose variation is substantially continuous between said rest surface (104, 204) and said maximum indication radius. Mécanisme selon la revendication 2, caractérisé en ce que ledit rouage d'entraînement (64) et la variation du rayon de la périphérie de ladite seconde came (10, 30, 48) sont agencés de telle manière que la vitesse de déplacement dudit levier de commande (6, 26, 46) pour passer de sa position de repos à sa position d'indication est sensiblement constante.Mechanism according to claim 2, characterized in that said drive train (64) and the variation of the radius of the periphery of said second cam (10, 30, 48) are arranged in such a way that the speed of movement of said lever control (6, 26, 46) to move from its rest position to its indication position is substantially constant. Mécanisme selon la revendication 3, caractérisé en ce que ledit rouage d'entraînement (64) est agencé pour entraîner ladite seconde came (10, 30, 48) en rotation à vitesse sensiblement constante et pour parcourir un angle prédéfini.Mechanism according to claim 3, characterized in that said drive train (64) is arranged to drive said second cam (10, 30, 48) in rotation at a substantially constant speed and to traverse a predefined angle. Mécanisme selon la revendication 4, caractérisé en ce que ledit angle prédéfini est de 360 degrés.Mechanism according to claim 4, characterized in that said predefined angle is 360 degrees. Mécanisme selon la revendication 5, caractérisé en ce que ladite seconde came est symétrique suivant un axe passant par ladite surface de repos et ledit rayon d'indication maximale.Mechanism according to claim 5, characterized in that said second cam is symmetrical along an axis passing through said resting surface and said maximum indication radius. Mécanisme selon la revendication 6, caractérisé en ce que ladite seconde came (30, 48) présente une portion étendue présentant une valeur de rayon sensiblement égale ou inférieure à celle dudit rayon d'indication maximale, ledit axe de symétrie de ladite seconde came passant sensiblement par le milieu de ladite portion étendue.Mechanism according to claim 6, characterized in that said second cam (30, 48) has an extended portion having a radius value substantially equal to or less than that of said maximum indication radius, said axis of symmetry of said second cam passing substantially by the middle of said extended portion. Mécanisme selon la revendication 7, caractérisé en ce que ladite portion étendue et ledit rouage d'entraînement (64) sont agencés de telle manière que ledit levier de commande (6, 26, 46) est susceptible de rester dans sa position d'indication maximale pendant au moins 3 secondes, préférablement au moins 5 secondes, après y avoir été conduit en réponse audit évènement de déclenchement.Mechanism according to claim 7, characterized in that said extended portion and said drive train (64) are arranged such that said control lever (6, 26, 46) is likely to remain in its maximum indication position for at least 3 seconds, preferably at least 5 seconds after being conducted in response to said trigger event. Mécanisme selon l'une quelconque des revendications précédentes, caractérisé en ce que ledit levier de commande (6, 26, 46) est destiné à être monté rotatif sur un élément de bâti du mouvement horloger.Mechanism according to any one of the preceding claims, characterized in that said control lever (6, 26, 46) is intended to be rotatably mounted on a frame member of the watch movement. Mécanisme selon la revendication 9, caractérisé
en ce que ledit levier de commande (26, 46) présente un axe de pivotement (32, 52) en référence auquel il est destiné à pivoter ainsi qu'au moins une surface de butée (36, 56), située à une première distance prédéfinie dudit axe de pivotement et, agencée de manière à subir l'effet de l'action dudit organe élastique (34, 54) visant à appliquer ledit levier de commande contre ladite surface de repos (204),
en ce que, d'une part, ladite surface de butée (36, 56) et, d'autre part, lesdits premier et second becs (201, 202, 221, 222) sont agencés de part et d'autre dudit axe de pivotement (32, 52), et
en ce que ledit second bec (202, 222) est situé à une distance dudit axe de pivotement (32, 52) supérieure à ladite première distance prédéfinie.Mechanism according to claim 9, characterized
in that said control lever (26,46) has a pivot axis (32,52) with reference to which it is intended to pivot and at least one abutment surface (36,56) located at a first distance predefined said pivot axis and arranged to undergo the effect of the action of said elastic member (34, 54) for applying said control lever against said rest surface (204),
in that , on the one hand, said stop surface (36, 56) and, on the other hand, said first and second spouts (201, 202, 221, 222) are arranged on either side of said axis of pivoting (32, 52), and
in that said second nose (202, 222) is located at a distance from said pivot axis (32, 52) greater than said first predetermined distance. Mécanisme selon l'une quelconque des revendications précédentes, caractérisé en ce que la vitesse de rotation de ladite seconde came (10, 30, 48) est supérieure à celle de ladite première came (8, 28, 47), préférablement d'au moins un facteur 10, encore plus préférablement d'au moins un facteur 100 ou 150.Mechanism according to any one of the preceding claims, characterized in that the rotational speed of said second cam (10, 30, 48) is greater than that of said first cam (8, 28, 47), preferably at least a factor of 10, still more preferably at least a factor of 100 or 150. Mouvement horloger comportant un mécanisme d'indication à la demande selon l'une quelconque des revendications précédentes agencé pour entraîner un organe d'indication visuelle (1, 2, 4) et/ou un organe d'indication sonore (44) d'une information.Watchmaking movement comprising an on-demand indication mechanism according to any one of the preceding claims arranged to drive a visual indication member (1, 2, 4) and / or an audible indication member (44) of a information. Mouvement horloger selon la revendication 12, caractérisé en ce que ledit levier de commande (6, 26, 46) comprend une première denture (16, 36, 56) présentant une liaison cinématique avec un organe d'indication visuelle (1, 2, 4) d'une information.Clock movement according to claim 12, characterized in that said control lever (6, 26, 46) comprises a first toothing (16, 36, 56) having a kinematic connection with a visual indication member (1, 2, 4 ) information. Mouvement selon la revendication 13, caractérisé en ce que ledit levier de commande (6, 26) comprend une seconde denture (18, 38) présentant une liaison cinématique avec un organe d'indication sonore (44) de ladite information.Movement according to claim 13, characterized in that said control lever (6, 26) comprises a second toothing (18, 38) presenting a kinematic connection with a sound indicating member (44) of said information. Pièce d'horlogerie comportant un mouvement horloger selon l'une quelconque des revendications 12 à 14.Timepiece comprising a watch movement according to any one of claims 12 to 14.
EP12151185.1A 2012-01-14 2012-01-14 Mechanism for indicating on request information for a timepiece movement Withdrawn EP2615505A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP12151185.1A EP2615505A1 (en) 2012-01-14 2012-01-14 Mechanism for indicating on request information for a timepiece movement
PCT/EP2013/050600 WO2013104802A1 (en) 2012-01-14 2013-01-14 Clockwork movement indicating mechanism that acts in response to a request for information
EP13701933.7A EP2802945A1 (en) 2012-01-14 2013-01-14 Clockwork movement indicating mechanism that acts in response to a request for information

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP12151185.1A EP2615505A1 (en) 2012-01-14 2012-01-14 Mechanism for indicating on request information for a timepiece movement

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EP3800512A1 (en) * 2019-10-02 2021-04-07 Patek Philippe SA Genève Device for on-demand display for a clock piece

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EP1475681A1 (en) * 2003-05-09 2004-11-10 Audemars Piguet (Renaud et Papi) SA Chronograph watch with immediate display of the fractions of a second
EP1708050A1 (en) 2005-03-31 2006-10-04 Zenith International SA Timepiece with a minute-repeater mechanism
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WO2017158536A1 (en) * 2016-03-15 2017-09-21 Chanel Sa Genève Mechanism for a watch movement
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EP2802945A1 (en) 2014-11-19

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