EP3435176B1 - Torque smoothing for timepiece with chiming mechanism, in particular with chiming mechanism - Google Patents

Description

Field of the invention

The invention relates to a timepiece comprising at least one movement comprising main energy storage means for supplying at least one resonator and arranged to continuously drive at least one output mobile comprising at least one tooth , said timepiece further comprising at least one display mechanism arranged to be controlled by said movement or by an action of a user, said display mechanism being supplied with energy at least by said main means for storing energy through said output mobile, and said display mechanism comprising elastic return means with progressive arming under the action of said output mobile and arranged to modify the display at times controlled by a said movement or by a action of a user, by disarming said elastic return means, the arming and disarming cycle of said elastic return means corresponding to a variation of the torque e consumed by said display mechanism at said output mobile, which comprises at least one tooth arranged to lift an intermediate rocker trigger by the movement, which comprises said display mechanism.

The invention relates to the field of timepieces, and more particularly watches, comprising a striking or melody mechanism, such as music boxes.

Background of the invention

In a watch striking mechanism, the consumption of torque is irregular. A significant amount of torque is consumed every quarter of an hour, but a drop in consumption occurs until the preparation for the next bell. This results in jolts in the going train, and also in a variation in amplitude of the resonator of the clockwork movement.

The document CH21800A in the name of MATHEY-TISSOT describes a minute repeater mechanism, with a rack of fourteen teeth activating the lift intended to strike the minutes, fixed directly to the fusee arbor and bearing a heel intended to drive the part to quarters via a pinion which can rotate freely on the spindle shaft.

The document EP1760545A1 in the name of MONTRES JOURNE describes a timepiece provided with a striking mechanism, comprising a common barrel for the going train and for the striking train, a pivoting cam in desmodromic connection with the shaft and the drum of the barrel common, with an angular ratio chosen so that its total angle of displacement corresponding to the total winding angle of the barrel spring does not exceed 360 degrees, so that its angular position is characteristic of the winding state of the mainspring barrel, striking rakes, a clutch rocker between the latter and the striking wheel, controlled by a release lever and a locking device capable of occupying two positions, one in which the clutch rocker can be moved to the disengaged position when released by the release lever, the other in which it is retained in the engaged position by the locking device, the latter co mportant means intended to come alternately into engagement with the pivoting cam to move it from one to the other of its two positions.

The document EP1925995A1 in the name of CHRISTOPHE CLARET describes a striking mechanism comprising rakes, a power source for driving the rakes and a gear train connecting the power source to a regulating member, these rakes are kinematically connected to the power source via a differential arranged in the gear train.

Summary of the invention

The invention proposes to develop better regulation, by reducing the variations in torque consumption of the movement, without however canceling them, due to the higher consumption of torque corresponding to the chimes of the full hour.

To this end, the invention relates to a timepiece according to claim 1.

Due to its simplicity, but which is effective only through the possibility of very precise fine adjustments offered by the invention, the latter also allows the optimization of mechanisms of existing timepieces, and the present description also sets out an additional mechanism, which can be added to an existing timepiece.

Brief description of the drawings

• les figures 1 à 6 représentent, de façon schématisée et en plan, dans six positions successives, un détail d'une réalisation particulière de l'invention, où le mécanisme d'affichage est un mécanisme de sonnerie incorporé dans une pièce d'horlogerie, et qui comporte, autour d'un mobile de sortie entraîné par un mouvement d'horlogerie, ici constitué non limitativement par une étoile de quatre, d'une part des composants propres au mécanisme de sonnerie : un rochet de détente coopérant avec un cliquet principal porté, ainsi que son ressort, par une bascule de déclenchement par le mouvement, et une bascule intermédiaire de déclenchement par le mouvement, soulevée périodiquement par une dent du mobile de sortie, et dont le pivotement entraîne le pivotement de la bascule de déclenchement par le mouvement, et d'autre part un sautoir lisseur de couple, qu'un premier ressort tend à ramener en appui sur le mobile de sortie ;
• les figures 7 à 11 représentent, de façon schématisée, à chaque fois en vues de dessus, dessous et perspective, différents composants propres à ce mécanisme :
• en figure 7 une étoile de quatre constituant une réalisation particulière du mobile de sortie ;
• en figure 8 un mobile entraîneur de sonnerie avec son rochet monté ;
• en figure 9 un levier de débrayage de sonnerie, comportant une bascule de déclenchement par le mouvement, qui porte un cliquet principal de sonnerie et un ressort de poussée qui prend appui sur ce dernier ;
• en figure 10 le sautoir lisseur de couple propre à l'invention ;
• en figure 11 une bascule intermédiaire de déclenchement par le mouvement qui coopère directement avec le mobile de sortie ;
• la figure 12 est un diagramme représentant, en ordonnée, la consommation de couple, en fonction du temps exprimé en abscisse ; deux courbes de couple se croisent sensiblement :
  • ∘ d'une part une première courbe, en trait interrompu, avec un cycle périodique, sensiblement rectangulaire, avec des valeurs de couple non nulles et égales entre elles, pendant des plages de temps de 3 minutes au moment des changements de quarts, et qui correspond au couple résistant supplémentaire créé par le sautoir lisseur de couple, et
  • ∘ d'autre part une deuxième courbe, en trait continu, qui correspond à la consommation de couple par le mécanisme de sonnerie sans la mise en œuvre de l'invention ;
    et cette figure 12 comporte des repères A, B, C, D, E, F, correspondant aux instants respectifs des figures 1 à 6 ;
• la figure 13 est un schéma-blocs représentant une pièce d'horlogerie comportant un mouvement avec son mobile de sortie coopérant avec un mécanisme de sonnerie auquel est incorporé le dispositif à sautoir lisseur de couple selon l'invention,
• la figure 14 est un autre schéma-blocs représentant une pièce d'horlogerie comportant un mouvement avec son mobile de sortie coopérant avec un mécanisme de sonnerie, et avec un mécanisme additionnel lequel comporte le dispositif à sautoir lisseur de couple selon l'invention ;
• les figures 15 et 16 illustrent un détail d'une variante comportant, entre le mobile de sortie et la bascule intermédiaire de déclenchement par le mouvement que comporte le mécanisme, une roue intermédiaire synchrone avec le mobile de sortie et porteuse d'une came avec laquelle coopère une bascule d'appui, rappelée sur la came par un ressort non représentée sur la figure :
• sur la figure 15 la bascule est en appui sur un rayon concentrique à l'axe de la came, le couple consommé est négligeable ;
• sur la figure 16 la bascule est en appui sur un rayon ascendant de la came, le couple consommé correspond à l'entraînement de la bascule intermédiaire de déclenchement par le mouvement.

Other characteristics and advantages of the invention will appear on reading the detailed description which follows, with reference to the appended drawings, where:

• the figures 1 to 6 represent, schematically and in plan, in six successive positions, a detail of a particular embodiment of the invention, where the display mechanism is a striking mechanism incorporated in a timepiece, and which comprises, around an output mobile driven by a clock movement, here consisting of a star of four, on the one hand, components specific to the striking mechanism: a trigger ratchet cooperating with a main ratchet carried, as well as its spring, by a rocker for triggering by the movement, and an intermediate rocker for triggering by the movement, periodically raised by a tooth of the output mobile, and the pivoting of which causes the pivoting of the rocker for triggering by the movement, and on the other hand, a torque-smoothing jumper, which a first spring tends to bring back to rest on the output mobile;
• the figures 7 to 11 schematically represent, each time in top, bottom and perspective views, different components specific to this mechanism:
• in figure 7 a star of four constituting a particular embodiment of the output mobile;
• in figure 8 a bell train mobile with its mounted ratchet;
• in figure 9 a ringing release lever, comprising a rocker for triggering by movement, which carries a main ringing pawl and a thrust spring which bears on the latter;
• in figure 10 the torque-smoothing jumper specific to the invention;
• in figure 11 an intermediate motion-trigger flip-flop which cooperates directly with the output mobile;
• the figure 12 is a diagram representing, on the ordinate, the consumption of torque, as a function of time expressed on the abscissa; two torque curves intersect substantially:
  • ∘ on the one hand a first curve, in broken line, with a periodic cycle, substantially rectangular, with non-zero and equal torque values, for time ranges of 3 minutes at the time of shift changes, and which corresponds to the additional resistant torque created by the torque smoothing jumper, and
  • ∘ on the other hand a second curve, in continuous line, which corresponds to the consumption of torque by the striking mechanism without the implementation of the invention;
    and this figure 12 includes marks A, B, C, D, E, F, corresponding to the respective times of the figures 1 to 6 ;
• the figure 13 is a block diagram representing a timepiece comprising a movement with its output mobile cooperating with a striking mechanism in which the torque-smoothing jumper device according to the invention is incorporated,
• the figure 14 is another block diagram representing a timepiece comprising a movement with its output mobile cooperating with a striking mechanism, and with an additional mechanism which comprises the torque-smoothing jumper device according to the invention;
• the figures 15 and 16 illustrate a detail of a variant comprising, between the output mobile and the intermediate rocker for triggering by the movement that the mechanism comprises, an intermediate wheel synchronous with the output mobile and carrying a cam with which a rocker cooperates support, returned to the cam by a spring not shown in the figure:
• on the figure 15 the rocker rests on a radius concentric with the axis of the cam, the torque consumed is negligible;
• on the figure 16 the rocker rests on an ascending radius of the cam, the torque consumed corresponds to the driving of the intermediate trigger rocker by the movement.

Detailed Description of Preferred Embodiments

The invention relates to a timepiece 2000, in particular a watch, comprising at least one movement 200. This movement 200 comprises main energy storage means, such as a barrel or the like, for powering at least one resonator. The invention relates both to mechanical watches and to electro-mechanical watches.

Such a timepiece 2000 can also be a music box, or comprise a music box.

The movement 200 is arranged to continuously drive at least one output wheel set 3 comprising at least one tooth.

This timepiece 2000 comprises at least one display mechanism, which is arranged to be controlled by such a movement 200 or by an action of a user. This display mechanism is supplied with energy at least by the main energy storage means through said output mobile 3.

This display mechanism comprises elastic return means with progressive arming under the action of the output mobile 3, and which are arranged to modify the display at times controlled by a movement 200 or by an action of a user, by disarming the elastic return means. The arming and disarming cycle of the elastic return means corresponds to a variation of the torque consumed by the display mechanism at the level of the output mobile 3. This output mobile 3 comprises at least one tooth which is arranged to lift a intermediate motion-trigger rocker 70, which said display mechanism comprises.

According to the invention, the display mechanism comprises a torque smoothing jumper 900, which is arranged to cooperate in discontinuous bearing with the output wheel set 3, either directly or through an intermediate gear train. A first spring 902 tends to bring this torque-smoothing jumper 900 to rest on the output mobile 3, so as to consume, when the intermediate motion-trigger rocker 70 is not engaged with the output mobile 3, a torque equivalent to that consumed by the intermediate lever for triggering by the movement 70 when it is engaged with the output mobile 3, so as to avoid jolts on the gear train of the movement 200, and to prevent any variation amplitude of the resonator.

More particularly, and as illustrated by the figures, the display mechanism is a striking mechanism 100. The output mobile 3 comprises at least one tooth, which is arranged to cooperate with control members of this striking mechanism .

The timepiece 2000 thus comprises at least one striking mechanism 100 for the execution of a passing striking and/or minute repeater when this striking mechanism 100 comprises a minute repeater. The striking mechanism 100 is arranged to be controlled by a movement 200 or by an action by a user. The striking mechanism 100 is conventionally supplied with energy by the main energy storage means and/or by secondary energy storage means 220 such as a striking barrel or the like.

• sonneries,
• répétition antique,
• répétition à quarts moderne,
• répétition simplifiée,
• répétition demi-quarts,
• répétition demi-quarts Breguet,
• répétition cinq minutes,
• répétition à minutes,
• grande sonnerie.

This striking mechanism 100 is not detailed here. The work of François LECOULTRE "Complicated watches", Editions horlogères, Bienne (Switzerland), 1985, ISBN 2-88175-000-1, explains in detail the basic mechanisms that make up striking mechanisms, on pages 97 to 205 , under different chapters:

• ringtones,
• antique repeat,
• modern quarter repeat,
• simplified repetition,
• half-quarter repeat,
• Breguet half-quarter repeater,
• five minute repeat,
• minute repeater,
• big ringtone.

Unless necessary, these basic mechanisms will not be repeated here in detail. The ringtone specialist will be able to find their constitution in this universal reference work, in particular in the last two chapters cited above.

This striking mechanism 100 also includes at least one striking driving mobile 2, as set out in particular in the “Grande Sonnerie” chapter of the work “Les montres complexes” and visible in particular in FIG. 40 of this work. This striking trainer mobile 2 conventionally comprises a trigger ratchet 22 and a rack pinion.

The trigger ratchet 22 is arranged to cooperate with a main pawl 85 for the execution of a passing chime, or with a minute repeater pawl, not shown in the figures, when the striking mechanism 100 includes a minute repeater.

More particularly, the striking mechanism 100 comprises a striking mechanism 55, which is arranged to move the main pawl 85 away from the striking mobile 2, and the minute repeater trigger pawl when the striking mechanism 100 includes one.

This bell disengagement lever 55 comprises a rocker for triggering by the movement 50, which carries the main bell pawl 85 and a thrust spring 52 which bears on the main bell pawl 85.

The output mobile 3 comprises at least one tooth arranged to raise an intermediate trigger rocker by the movement 70, which the striking mechanism 100 comprises, and the pivoting of which causes the pivoting of the trigger rocker by the movement 50.

According to the invention, the striking mechanism 100 comprises a torque smoothing jumper 900, arranged to cooperate with the output mobile 3, either directly as illustrated by the figures, or through an intermediate gear train. A first spring 902 tends to bring this torque-smoothing jumper 900, or the last wheel set of its intermediate gear train if applicable, to rest on the output wheel set 3, so as to consume, when the intermediate trigger rocker by the movement 70 is not engaged with the output mobile 3, a torque equivalent to that consumed by the intermediate flip-flop for triggering by the movement 70 when it is engaged with the output mobile 3, so as to avoid -blows on the going train of the movement 200 and to prevent any variation in amplitude of the resonator.

The following description only sets out the preferred case of the direct connection between the torque smoothing jumper 900 and the output mobile 3, the person skilled in the art will have no difficulty in interposing intermediate mobiles, in particular if the size requires it. However, the last mobile arranged to cooperate directly with the output mobile must then include the particular characteristics explained below.

More particularly, the striking mechanism 100 comprises an eccentric 901 resting on an arm 903 of the torque smoothing jumper 900 to adjust the position of the torque smoothing jumper 900, so that the torque consumed by the torque smoothing jumper 900 and that consumed by the intermediate rocker trigger by the movement 70 overlap as little as possible.

More particularly, the torque smoothing jumper 900 comprises a polygonal head, comprising a main bearing surface 906 whose position is adjustable by this eccentric 901, separated by an edge 905 from a second bearing surface 904, which is provided to be adjusted in position in the factory by removal of material, after the installation of the movement 200 and of the striking mechanism 100 in the timepiece 2000 and before the commissioning of the latter, and in such a way as to avoid early release of the torque smoothing jumper 900 and thus to prevent any backlash at the level of the resonator, and to avoid excessive release of the torque smoothing jumper 900 and thus preventing any loss of amplitude at the level of the resonator.

Advantageously, the intermediate rocker 70 for triggering by movement comprises an elastic beak 72 arranged to cooperate with a tooth of the output mobile 3. This beak 72 can, depending on the force applied to it, be at a distance of a arm 75 of the intermediate rocker triggered by the movement 70, or resting on this arm 75.

More particularly, the trigger rocker by the movement 50 is subjected to the restoring torque of a second spring 501 resting on a pin 502 that it comprises.

The figures illustrate a particular, non-limiting embodiment of the output mobile 3, in the non-limiting form of a star wheel 130 for triggering the ringing by the movement comprising four teeth, so as to be able to raise, every quarter of an hour, the intermediate motion-trigger rocker 70.

The figures 15 and 16 illustrate a detail of a variant comprising an intermediate wheel 132 synchronous with the output wheel set 3, by means of a first wheel 131 which the latter comprises, and carrying a cam 133 with which an end 134 of a support rocker 135, the other end 136 of which is subjected to the action of a spring, not shown, to press the support rocker 135 onto the cam 133. The end 134 of the rocker 135 travels around the periphery of the cam, which is indexed on its wheel 132 by a pin 137, for synchronization between the support rocker 135 on the cam 133 and the output wheel set 3 with the intermediate trigger rocker by the movement 70. When the output 3 is in contact with the intermediate trigger rocker by the movement 70, the support rocker 135 is on a concentric radius of the cam 133, the torque consumed by the rocker is then negligible; when the output mobile 3 is no longer in contact with the intermediate rocker 70 for triggering by the movement, the support rocker 135 is on an ascending radius of the cam 133, in order to consume the same torque as during the drive of the intermediate trigger rocker by movement 70. On the figure 15 , the end 134 of the rocker 135 bears on a radius 1330 concentric with the axis of the cam 133, the torque consumed is negligible. On the figure 16 , the end 134 of the rocker 135 bears on an ascending radius 1331 of the cam, the torque consumed corresponds to the driving of the intermediate trigger rocker by movement 70.

In a particular embodiment, the cam 133 comprises alternating concentric spokes 1330 and ascending spokes 1331, and is of the snail type, with a sudden jump between its largest radius and its smallest radius, as illustrated by the figures 15 and 16 .

More particularly, the intermediate wheel 132 and the first wheel 131 are chosen so that each passage from one tooth to the other on the star wheel 130 for triggering ringing by the movement corresponds to a change of concentric radius 1330.

• l'appui sur la came peut se faire par l'intermédiaire d'un galet sur la bascule ;
• la forme de la came peut varier, et en particulier en utilisant la possibilité de restituer du couple sur le mobile de sortie 3, avec une pente descendante au lieu d'une pente descendante.

This variant can also be arranged in other forms, and in particular:

• the support on the cam can be done by means of a roller on the rocker;
• the shape of the cam can vary, and in particular by using the possibility of restoring torque to the output mobile 3, with a downward slope instead of a downward slope.

It will be understood that the extrapolation of the invention thus makes it possible to manage different types of torque exchange, torque take-off, or torque restitution, at chosen instants. This functionality is particularly advantageous for numerous horological mechanisms, in particular of the type periodically consuming a large torque and then nothing, all during a fairly short period of time, of the order of an hour or less.

• seconde rétrograde ;
• seconde sautante ;
• minute rétrograde ;
• minute sautante ;
• heure rétrograde ;
• heure sautante ;
• chronographe ;
• compte à rebours ;
• automate ;

et similaires.Illustrated here in the particularly advantageous case of a grand strike, the mechanism according to the invention can also be used, in no way limiting, in the following mechanisms, for which the watchmaker must manage large torque differences, which usually lead oversizing of certain components and degradation of energy efficiency:

• retrograde seconds;
• jumping second;
• retrograde minute;
• jumping minute;
• retrograde hour;
• jumping hour;
• chronograph;
• countdown ;
• automaton;

and the like.

An advantageous embodiment also relates to an additional mechanism 1000 for a timepiece 2000 as described above, comprising a movement 200 comprising main energy storage means for supplying at least one resonator and arranged to drive in continuous at least one output mobile 3 comprising at least one tooth. This timepiece 2000 comprises a display mechanism comprising elastic return means with progressive arming under the action of the output mobile 3, and which are arranged to modify the display at times controlled by the movement 200 or by an action by a user, by disarming the elastic return means, the arming and disarming cycle of the elastic return means corresponds to a variation in the torque consumed by the display mechanism at the output mobile 3.

More particularly, this additional mechanism 1000 comprises a torque smoothing jumper 900, which is arranged to pivot on a plate or a bridge of such a timepiece 2000 or of such a display mechanism or of such a movement 200. The additional mechanism 1000 comprises a first spring 902, fixed to the plate or to the bridge, and which tends to bring the torque smoothing jumper 900 into discontinuous support on the output mobile 3, either directly or through a intermediate gear train, so as to consume as much torque from the movement 200 as the display mechanism consumes when it consumes torque, during the phases when the display mechanism does not consume any torque from the movement 200.

And the additional mechanism 1000 advantageously comprises an eccentric 901, which is arranged to be fixed on the plate or the bridge, and to rest on an arm 903 of the torque smoothing jumper 900 to adjust the position of the torque smoothing jumper 900, to that the torque consumed by the torque smoothing jumper 900 and that consumed by the display mechanism overlap as little as possible.

More particularly, this additional mechanism 1000 is provided for a timepiece 2000, and in particular but not limited to a timepiece watchmaking 2000, in particular a watch, of which at least one display mechanism is a striking mechanism 100 for executing a passing striking and/or minute repeater, and a movement 200 comprising main storage means energy for supplying at least one resonator and arranged to continuously drive at least one output wheel set 3 comprising at least one tooth, and arranged to trigger the operation of bells as they pass.

More particularly still, this additional mechanism 1000 comprises a torque smoothing jumper 900, arranged to pivot on a plate or a bridge of such a timepiece 2000 or of a striking mechanism 100 or of a movement 200. It comprises a first spring 902, fixed to the plate or to the bridge, and tending to bring the torque smoothing jumper 900 to rest on the output wheel set 3, either directly or through an intermediate gear train, so as to consume as much torque of the movement 200 than the striking mechanism 100 consumes when it consumes torque, during the phases when the striking mechanism 100 does not consume any torque of the movement 200.

The kinematics is exposed to figures 1 to 6 , in relation to the instants A to F in the vicinity of the half-hour and three-quarters of an hour of the graph of the figure 12 , which illustrates an example of the implementation of the invention in a wristwatch with a grand strike, with a couple on the ordinate, and a time in minutes on the abscissa.

The figure 1 , at time A, shows the arm 903 of the jumper 900 at rest on the eccentric 901. A first tooth of the output mobile 3 bears against the main bearing surface 906, on the side opposite the edge 905 , and its subsequent travel along this bearing surface 906, against the first spring 902, will result in the torque consumption of the torque smoothing jumper 900. A second tooth of the output mobile 3 is in support tip to tip on beak 72, which she is about to leave. The pawl 85 is in the extreme position, the furthest back, with respect to the ratchet 22.

The figure 2 , at instant B immediately following instant A, of the order of one second later, shows output mobile 3 pushing jumper 900 counterclockwise, still on main support surface 906, and by approaching the edge 905, and taking off its arm 903 from the eccentric 901. The torque smoothing consumption is carried out during this phase. The intermediate motion trigger rocker 70, which is no longer retained by the output mobile 3, pivots in the anti-clockwise direction, its travel being limited by a pin, not shown, which cooperates with the oblong slot that it comprises. The pawl 85 is still immobile, but the pivoting of the intermediate trigger rocker by the movement 70 will authorize that of the trigger rocker by the movement 50, and therefore the movement of the pawl to the left of the figure.

The picture 3 , at instant C a few minutes after instant B, shows the instant when the torque consumption is left by the torque smoothing jumper 900, to resume the torque consumption by the striking mechanism. One tooth of output mobile 3 is on edge 905, point to point, which corresponds to the extreme high point of jumper 900, another tooth of output mobile 3 comes into contact with beak 72 of the intermediate tripping rocker by the movement 70, without yet making it bend, which will allow the arming of the second spring 501 pushing the trigger rocker by the movement 50, then of the first spring 902 via the jumper 900.

The figure 4 , at instant D immediately following instant C, of the order of one second later, shows the tooth of the output mobile 3 in the process of crossing the edge 905, and the other tooth of the output mobile 3 now pushes the beak 72 of the intermediate trigger rocker by the movement 70, resting on its arm 75, thus performing the catching up of the game.

The figure 5 , at instant E a few minutes after instant D, shows the clockwise travel of the intermediate trigger lever by movement 70 under the thrust of a tooth of output mobile 3, corresponding to arming of the ringer trigger toggle. The opposite tooth of the output mobile 3 is along the second support surface 904. The jumper 900 falls slowly clockwise, accompanying the rotation of the output mobile 3, and restores torque when the bell is triggered. The arm 903 of the jumper 900 comes back into contact with the eccentric 901. The fine adjustment of the latter allows the precise adjustment of the position of the edge 905 of the torque smoothing jumper 900. The pawl 85 begins its recoil.

The figure 6 , at instant F a few minutes after instant E, shows the output mobile 3 without any contact with the jumper 900 which rests in support on the eccentric 901, and which completes the clockwise thrust of the beak 72 and of the intermediate motion-trigger rocker 70, whose face 74 drives the trigger rocker by the movement 50. Continuation of the rotation of the output mobile 3 then brings the assembly back to the position of the figure 1 .

Claims (9)

1. Timepiece (2000) comprising at least one movement (200) including main energy storage means for powering at least one resonator and arranged to continuously drive at least one output wheel set (3) including at least one tooth, said timepiece (2000) further comprising at least one display mechanism arranged to be controlled by a said movement (200) or by user action, said display mechanism being supplied with energy at least by said main energy storage means via said output wheel set (3), and said display mechanism including elastic return means gradually wound by means of said output wheel set (3) and arranged to change the display at instants controlled by a said movement (200) or by user action, by unwinding said elastic return means, the winding and unwinding cycle of said elastic return means corresponding to a variation in the torque used by said display mechanism at said output wheel set (3), which includes at least one tooth arranged to lift an intermediate movement-actuated release lever (70), comprised in said display mechanism, characterised in that said display mechanism includes a torque smoothing jumper (900) which is arranged for discontinuous abutting engagement with said output wheel set (3), either directly, or via an intermediate train, and which a first spring (902) tends to return into abutment on said output wheel set (3), in order to use, when said intermediate, movement-actuated release lever (70) is not in mesh with said output wheel set (3), a torque equivalent to that used by said intermediate, movement-actuated release lever (70) when it is in mesh with said output wheel set (3), so as to avoid jerks in the going train of said movement (200) and to prevent any amplitude variation of said resonator.
2. Timepiece (2000) according to claim 1, characterised in that said display mechanism is a striking mechanism (100) for executing a passing strike and/or minute repeater function when said striking mechanism (100) includes a minute repeater, said striking mechanism (100) being arranged to be controlled by a said movement (200) or by user action, said striking mechanism (100) being supplied with energy by said main energy storage means and/or by said secondary energy storage means (220), and said striking mechanism (100) including at least one strike drive wheel set (2) comprising a release ratchet (22) with which is arranged to cooperate a main click (85) for the passing strike function and/or the minute repeater function when said striking mechanism (100) includes a minute repeater, characterised in that said striking mechanism (100) includes a strike uncoupling lever (55) arranged to move away from said strike wheel set (2) said main click (85) and said minute repeater release click when said striking mechanism (100) includes a minute repeater, said strike uncoupling lever (55) including a movement-actuated release lever (50) which carries said main strike click (85) and a thrust spring (52) which rests on said main strike click (85), in that said output wheel set (3) includes at least one tooth arranged to lift an intermediate, movement-actuated release lever (70), comprised in said striking mechanism (100), and the pivoting of which causes movement-actuated release lever (50) to pivot, and in that said striking mechanism (100) includes a torque smoothing jumper (900) which is arranged to engage with said output wheel set (3), either directly, or via an intermediate train, and which a first spring (902) tends to return into abutment on said output wheel set (3), in order to use, when said intermediate, movement-actuated release lever (70) is not in mesh with said output wheel set (3), a torque equivalent to that used by intermediate, movement-actuated release lever (70) when it is in mesh with said output wheel set (3), so as to avoid jerks in the going train of said movement (200) and to prevent any amplitude variation of said resonator.
3. Timepiece (2000) according to claim 2, characterised in that said striking mechanism (100) includes an eccentric member (901) resting on an arm (903) of said torque smoothing jumper (900) to adjust the position of said torque smoothing jumper (900) so that the torque used by said torque smoothing jumper (900) and that used by said intermediate, movement-actuated release lever (70) overlap as little as possible.
4. Timepiece (2000) according to claim 3, characterised in that said torque smoothing jumper (900) includes a polygonal head including a main bearing surface (906) whose position can be adjusted by said eccentric member (901), separated by an edge (905) from a second bearing surface (904) which is arranged to be set in position at the factory by material removal, once said movement (200) and said striking mechanism (100) have been placed in said timepiece (2000) and before the latter is put in service, and in order to avoid the premature release of said torque smoothing jumper (900) and thus to prevent any knocking in the resonator, and to avoid the delayed release of said torque smoothing jumper (900) and thus to prevent any loss of amplitude of said resonator.
5. Timepiece (2000) according to any of claims 2 to 4, characterised in that said intermediate, movement-actuated release lever (70) includes an elastic beak (72) arranged to cooperate with a tooth of said output wheel set (3).
6. Timepiece (2000) according to any of claims 2 to 5, characterised in that said movement-actuated release lever (50) is subject to the return torque of a second spring (501) resting on a pin (502) comprised therein.
7. Timepiece (2000) according to any of claims 1 to 6, characterised in that said output wheel set (3) is a star wheel (130) with four teeth, in order to lift, at each quarter hour, said intermediate, movement-actuated release lever (70).
8. Timepiece (2000) according to any of claims 1 to 7, characterised in that said output wheel set (3) includes a first wheel (131) for driving an intermediate wheel (132) carrying a cam (133) with which cooperates one end (134) of a support lever (135), the other end of which (136) is subject to the action of a spring arranged to press said support lever (135) onto said cam (133), the profile of said cam (133) being such that, when said output wheel set (3) is in contact with said intermediate, movement-actuated release lever (70), said support lever (135) is along a concentric radius of said cam (133), and, when said output wheel set (3) is no longer in contact with said intermediate, movement-actuated release lever (70), said support lever (135) is along a rising radius of said cam (133), in order to use the same torque as during the driving of said intermediate, movement-actuated release lever (70).
9. Timepiece (2000) according to any of claims 1 to 8, characterised in that said timepiece (2000) includes an additional mechanism (1000) which includes a torque smoothing jumper (900), arranged to pivot on a plate or a bridge, and includes said first spring (902) fixed to said plate or to said bridge and which includes an eccentric member (901) arranged to be fixed on said plate or on said bridge, and to rest on an arm (903) of said torque smoothing jumper (900) to adjust the position of said torque smoothing jumper (900) so that the torque used by said torque smoothing jumper (900) and that used by said display mechanism overlap as little as possible.

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