EP1925997B1 - Chiming mechanism - Google Patents

Chiming mechanism Download PDF

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Publication number
EP1925997B1
EP1925997B1 EP20060124477 EP06124477A EP1925997B1 EP 1925997 B1 EP1925997 B1 EP 1925997B1 EP 20060124477 EP20060124477 EP 20060124477 EP 06124477 A EP06124477 A EP 06124477A EP 1925997 B1 EP1925997 B1 EP 1925997B1
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EP
European Patent Office
Prior art keywords
striking
triggering
drive wheel
mechanism according
camshaft
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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.)
Not-in-force
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EP20060124477
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German (de)
French (fr)
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EP1925997A1 (en
Inventor
Alain Schiesser
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.)
CHRISTOPHE CLARET ENGINEERING SA
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Manufacture Claret SA
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Priority to EP20060124477 priority Critical patent/EP1925997B1/en
Publication of EP1925997A1 publication Critical patent/EP1925997A1/en
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Publication of EP1925997B1 publication Critical patent/EP1925997B1/en
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    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • 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 the field of mechanical watchmaking. More particularly, it relates to a striking mechanism comprising a power source for driving rakes and a gear train connecting the energy source to a regulating member, the rakes being kinematically connected to the power source via a power source. a ringing drive device arranged in the train and actuated by a control member.
  • the drive comprises a detent ratchet, a drive plate carrying a first pawl.
  • the trigger ratchet is actuated by a second ratchet mounted on a rocker.
  • the rocker makes a sudden jump and the second pawl causes the trigger ratchet, which causes the lifting of the first ratchet and gives freedom to a barrel ratchet, mounted freely and without play on the barrel of the tray.
  • Running parts such as a ratchet of hours, a rack pinion and a quarter room finger are squared fitted on the barrel ratchet.
  • the document CH 689337 proposes a striking mechanism in which the passing ringtones are actuated by arms arranged rigidly on a nut mounted on the roadway and which act, every quarter of an hour, on a release lever which will act further on a similar ratchet at the second pawl of the device described above.
  • a first object of the invention is to provide a system for facilitating the setting of the triggering of the ring.
  • the conduct of a ring has three stages, a first in which the rakes fall on their respective snail to take information on the current time, a second during which the rakes are driven by the source of energy to operate the lifts and hammers, and a third, resting, in which the rakes and the energy source are blocked.
  • the sequence of these steps must of course be coordinated for proper operation of the ring.
  • it is a pin disposed on the rake minutes that activates the locking and unlocking of the power source. It is important that it is released only after the rakes have fallen on their snail. It is also very difficult to coordinate the action of the first pawl on the trigger ratchet and the unlocking of the energy source by the pin.
  • a second object of the invention is to facilitate the coordination of the various stages of the course of a ring.
  • the striking mechanism according to the invention is defined by claim 1.
  • the drive device may be conventional, of the type comprising a trigger ratchet, a drive plate carrying a pawl.
  • the element of link is then arranged to act on the trigger ratchet when triggering the ring.
  • the driving device can also be a differential.
  • the connecting element is arranged to act on a differential input when triggering the ring.
  • the drive mobiles are arranged to allow the camshaft to advance one step when triggering the ring to allow the rakes to fall on their respective snail.
  • the camshaft comprises a second cam for actuating the locking and unlocking of the energy source, the two cams being indexed relative to each other.
  • the camshaft In order to facilitate access to the camshaft for its drive, it may be provided with a second drive wheel, for distributing, in the thickness of the mechanism, the various members cooperating with these mobiles.
  • the drive mobiles are arranged to allow the camshaft to advance a first step during the triggering ring to allow the rakes to fall on their respective snail, a second step after that the rakes fell on their snail, to pass to a second stage of the course of the ringing during which the rakes are driven by the energy source, and of a third step, after the ringing took place, to proceed to a third step in which the rakes and the energy source are blocked.
  • the figure 1 shows a barrel 10 whose winding system has not been shown, which drives a reduction gear train 12, which ends with a regulating member, for example a flywheel 14 provided with a flyweight brake as the knows the skilled person.
  • a regulating member for example a flywheel 14 provided with a flyweight brake as the knows the skilled person.
  • the ring driving device is a differential 20 kinematically connecting the gear 12 to the rakes so that they are driven during the ring by the barrel 10.
  • a differential 20 particularly adapted to the invention is represented on the figure 2 .
  • the differential 20 On a shaft AA axis, it comprises a first sun gear 22 constituting a first differential input and kinematically connected with a wheel of the train 12.
  • the differential 20 is coaxial and integral with the wheel of the gear 12.
  • This sun gear 22 meshes with at least one, typically three, lower satellites 24 rotatably mounted on a first level of a planet carrier wheel 26 provided with a peripheral toothing.
  • the latter constitutes a second differential input. It is free in rotation and coaxial with the sun gear 22.
  • the three lower satellites 24 are each mounted coaxial and integral in rotation with at least one, typically three, upper satellites 28 rotatably mounted on a second level of the planet carrier wheel. 26.
  • the upper satellites 28 meshes with an upper solar wheel 30, coaxial and rotationally integral with a reference 32.
  • This upper sun gear 30 is the output of the differential.
  • this return 32 is engaged with a toothed sector 34 of an hours probe, intended to cooperate with the snail hour.
  • a ratchet hour 36 for activating a lift to ring the hours, is also integral in rotation of the reference 32.
  • the ratchet hours 36 is therefore directly kinematically connected to the feeler hours.
  • the rakes 18 kinematically connected to the hour sensor can move independently of the gear train 12 and the cylinder 10.
  • This configuration is the one that is used, when the bell is triggered, for allow the feelers of the different rakes, to fall on their respective snail to take information relative to the current time.
  • the second configuration makes it possible to kinematically connect the barrel 10 to the rakes 18. This is the one that is used during the course of the ringing so that the rakes move relative to their lifting to operate the hammers.
  • the third configuration corresponds to the situation in which the rakes 18 are stopped and kept at rest.
  • the blocking of the lower sun gear 22 is, according to the preferred embodiment shown in the drawings, by blocking the unwinding of the ringer barrel 10.
  • this lock is obtained by a stop element 38 arranged to move between a first and a second extreme position, the stop element 38 crossing, in one of these extreme positions, the stroke of a pin 40 projecting on the This is where the torque is the least important and the locking can be done with optimum safety.
  • the locking planet wheel 26 is made directly via a latch 42, having the shape of a hook 42a disposed on a latch 42b and capable of changing between a first and a second extreme positions, the hook 42a cooperating with the toothing of the planet carrier wheel 26 when it is in one of these extreme positions.
  • the invention provides a particularly advantageous solution to achieve this by controlling how the stop element 38, on the one hand, and the latch 42, on the other hand, each evolve between their first and second extreme positions.
  • a camshaft 50 is pivotally mounted in the frame and has a first cam 52 for controlling the locking of the lower sun gear 22 and a second cam 54 controlling the locking of the planet wheel 26.
  • Cams and stars are represented individually at figure 4 .
  • the camshaft 50 is positioned by a first star 56 having a first level 56a ( figure 4a ) provided with twelve teeth cooperating with a jumper 58 and a second level 56b ( figure 4b ) having only four teeth, regularly distributed on a cut of twelve teeth and superimposed with the teeth of the first level.
  • This star 56 also performs the function of driving mobile shaft 50, as will be described in detail later.
  • the positioning star 56 is numbered in a multiple of three, twelve having an angular pitch between two consecutive advantageous positions with respect to the size of these parts and the available space.
  • the first cam 52 shown in FIG. figure 4c has a succession of projecting parts and hollow parts. As mentioned above and illustrated by the figure 6 , the locking of the lower sun wheel 22 is at the level of the regulating member 14.
  • the stop element 38 can be disposed at the end of a double rocker 58, comprising two rocker bars 58a and 58b hinged one with the other by a pin 58c secured to one of them 58a and cooperating with a housing 58d formed in the other 58b.
  • a spring 60 is arranged to support the end of the rocker 58a against the first cam 52.
  • the pivot points of the double rocker 58 are arranged, in the example, so that when the rocker 58a supports against a protruding part of the cam 52, the stop element 38 cooperates with the regulating member 14, which blocks the lower sun gear 22. Conversely, when the cam 52 has a hollow portion at the rocker 58a, the lower sun wheel 22 is free.
  • the cam 52 is provided with a succession of a protruding part, a hollow part and a protruding part, this series being repeated four times according to the example of a shaft. cams 50 to twelve positions.
  • the second cam 54 ( figure 4d ) also has a succession of projecting parts and hollow parts.
  • a spring 62 is arranged to support the end of the latch 42 not carrying the hook 42a against the cam 54.
  • the pivot point of the latch 42 is arranged so that when the Cam 54 has a protruding portion at the latch 42, the hook 42a is outside the toothing of the planet carrier wheel 26 which is free to rotate. Conversely, when the rocker 42 presses against a hollow of the cam, the planet wheel 26 is blocked.
  • the cam 54 is provided with a succession of a protruding part and two hollow parts, this series being repeated four times according to the example of a twelve-position camshaft.
  • the shaft comprises a flat part with which a complementary structure 52a, 54a which has the inside diameter of the cams cooperates.
  • a complementary structure 52a, 54a which has the inside diameter of the cams cooperates.
  • they are directly machined so that their protruding and hollow portions are coordinated when they are arranged on the shaft. It may be the same for the training mobile.
  • Another type of indexing for example by a pin passing through the cams, can be envisaged.
  • FIG 3 shows a flexible finger 70 intended to cooperate with the second level 56b of the star 56 and rotated by the basic movement of the timepiece.
  • the finger 70 moves back and forth under the action of a sleeve 72 whose periphery defines a kind of spiral and has an inclined plane 72a.
  • the finger 70 is held against the cam by a spring 74 at a lug 70a which it is provided.
  • the bushing is driven counter-clockwise from the figure 3 , by the minute wheel of the basic movement, at a rate of one revolution per hour, which rotates the finger 70 counterclockwise and loads the spring 74. Every hour, at the passage of time, the lug passes the inclined plane and the finger 70, under the effect of the spring 74, rotates clockwise and drives the star 56 one step, thus passing the differential to the configuration 1.
  • the sleeve 72 could also include a plurality of inclined planes so as to actuate the finger every quarter of an hour, to ring quarters, an isolator can then be provided if it is desired that the hours are not ringed during the quarter ringing.
  • FIG. 5 For manual triggering, reference is made to figure 5 . It is proposed that the user operates a bolt 76 integral with a rack 78, like a conventional minute repeater.
  • the rack 78 meshes with an external toothing of a ring 80, coaxial with the striking barrel 10.
  • This ring 80 is connected to the shaft of the barrel 10 by a radial spring 82 having a hub 82a mounted squarely on the shaft and typically two resilient blades 82b, exerting a radial pressure towards the outside of the wheel and ending in a toothed portion cooperating with an internal toothing that includes the ring 80.
  • the spring 82 and the internal toothing of the ring 80 are arranged so as to form a snap between the shaft of the barrel 10 and the rack 78.
  • the pivoting of the ring 80 in one direction drives the barrel shaft in rotation, but neither the pivoting of the barrel shaft in the other direction, for example during the disassembly of the movement, nor the drive of the shaft during the manual winding of the barrel of ringing causes displacement of the bolt 76.
  • the outer toothing of the ring 80 transmits the movement of the bolt to a wheel 84 with which it meshes.
  • This wheel 84 is provided with a return system 86, for example a spiral spring, allowing the return of the bolt 76 to its rest position since the latching system mentioned above does not allow this return to be ensured by the energy provided by the barrel 10, as is the case in conventional repetitions.
  • the wheel 84 also carries an arm 88 mounted on its axis and ending with a bearing zone 88a intended to cooperate with a second star 90 ( figure 4e ), also acting as drive element of the shaft 50, to advance the camshaft 50 by one step and pass the differential to the configuration 1.
  • This star 90 is cut to the number twelve but do not has only four teeth, that is one per ringing cycle. It is also clearly visible on the figure 7 .
  • a simple rocker driven by a pusher disposed in the middle part of the watch drives the star 90 by one step, without rearming the barrel.
  • the teeth of the star 90 are likely to cross the path of a transmission wheel 92, permanently rotated by the main wheel of the movement. Typically, this wheel is driven by the wheel of small average at the rate of one turn in thirty seconds approximately.
  • the skilled person will determine the shape of the teeth of the star 90 and the transmission wheel 92 to ensure good torque transmission.
  • the teeth of the star 90 are disposed on the camshaft so as to cross the path of the transmission wheel 92 when the differential is in its first configuration.
  • the camshaft 50 is thus driven slowly by one step and passes the differential 20 to the configuration 2.
  • the rakes 18 are kinematically connected to the barrel 10 so as to allow the ringing to proceed as such.
  • the shaft 50 must therefore move one step further than the end of the ring.
  • one of the rakes 18, preferably the minute rake 18a allows the displacement of a transmission element to the end of the ring.
  • this element may be a finger 94 arranged to cooperate with the first star 56 to advance the camshaft 50 by one step.
  • the minute rake 18a carries a pin 96 intended to drive the finger 94.
  • this finger 94 is located at the end of an elastic portion of a rocker 98, which which improves the security of the device.
  • a spring 99 holds the rocker 98 against the pin 96.
  • the differential 20 when the ring is at rest, the differential 20 is in its configuration 3, the barrel 10 being locked, and the rakes 18 thus being held in position.
  • the camshaft 50 When triggering the ring, either manually or in passing, the camshaft 50 is driven one step, which allows to bring the differential 20 in its configuration 1.
  • the rakes are then disengaged from the ring gear 12 and they can then fall freely, under the effect of their respective spring, on their snail to take information relative to the current time. This step is very fast and is done while the transmission wheel 92 drives the second star 90 and passes the differential 20 in its configuration 2.
  • the rakes are then kinematically connected to the barrel 10 which is released.
  • the unlocking of the energy source can be managed in a conventional manner, as described in the aforementioned work.
  • the camshaft may have only one cam for triggering the ring.
  • the camshaft makes it possible to centralize in one place of movement all the controls of the striking mechanism. It is thus possible, in a very simple way, to have the mechanisms for blocking the ringing or other allowing, on the contrary, to trigger the ring at scheduled times.
  • the mechanism according to the invention may, in addition, comprise a silencer device 100 represented on the figure 7 and allowing the user to prevent the triggering of the ringing.
  • a pusher or corrector not shown is arranged in the middle part of the watch and makes a slide 102 evolve between a first rest position and a second position.
  • This slide 102 is mounted movably in translation on the plate of the striking mechanism and comprises, for this purpose, two oblongs 102a in which pass screws.
  • the slide 102 cooperates with a pin 104 disposed on a rocker 106.
  • a latch 108 is pivotally mounted, coaxial with the rocker 106.
  • the latch 108 is arranged to be able to move between a first rest position and a second position in which it cooperates with the second star 90, to prevent rotation of the shaft 50.
  • the lock 108 has a notch that substantially matches the circumference of the camshaft.
  • the notch defines a finger 108a capable of interacting with the teeth of the star 90. These teeth are shaped so as to bear substantially orthogonally on the finger 108a, to obtain an effective locking.
  • the lock 108 is provided with a rod 110 capable of cooperating with a bearing surface 106a that the rocker 106 presents.
  • a first spring 112 keeps the rod 110 in abutment against the surface 106a. The force exerted by this spring 112 on the lock tends to move it away from the camshaft 50 and bring it back to its first position.
  • a second spring 114 is arranged to press the rocker 106 against the slide 102.
  • the finger 108a blocks the rotation of the shaft 50 when the slide 102 is pulled, that is to say when it is in its furthest position relative to the shaft 50.
  • the extreme positions of the slide 102 may be marked by a notch system, advantageously obtained at the level of the corrector or the pusher.
  • the rocker 106 pivots and, the spring 112 being less strong than the spring 114, the lock 108 is brought into its second position and blocks the pivoting of the Conversely, when the slide 102 is pushed, the lock 108 returns to its first position under the effect of the spring 112, releasing the camshaft 50.
  • a second flip-flop 116 is also mounted coaxial with respect to the first.
  • This second flip-flop 116 is provided with a feeler 116a held by a third spring 118 in abutment against a cam 120 rotating one round, substantially in a time equal to the power reserve of the striking barrel 10.
  • the cam 120 has a hollow arranged so as to occur at the level of the rocker when the power reserve of the barrel is below a predetermined threshold.
  • the flip-flop 116 pivots and, the spring 112 being less strong than the spring 118, the latch 108 is brought into its second position and blocks the pivoting of the shaft. 50. Conversely, when the power reserve reverts above the predetermined threshold, the latch returns to its first position under the effect of the spring 112, releasing the camshaft 50.
  • the manual triggering system for ringing can reset the barrel 10
  • the arm 88 actuating the star 90 is arranged to intersect, in its race, the latch 108 if it is in its second position, so as to bring it into its first position. position the time necessary to advance the shaft 50. This clearance must be done before the arm 88 exerts a thrust on the star 90. Then, once the shaft has rotated, since the lock is in Looking at the toothless portions of the star 90, it no longer locks until, at the end of the ring, it cooperates with a next tooth.
  • a cam driven by the base gear wheel at a rate of one revolution per twenty-four hours may define parts of the day during which the ringing pass is engaged and others, for example during the night, during which time she is stuck.
  • a programmable triggering device of the ring which can find its place as well in a mechanism of large ring that in a mechanism of repetition to minutes managed by a camshaft.
  • This programmable triggering device may consist of an arm intended to cooperate with a driving mobile, such as star 56.
  • the arm is actuated via a GMT type system or by a twenty-four hour wheel. driven by the main movement.
  • An adjustment system coupled with a display by a lanternage makes it possible to define the time at which the arm will cross the driving mobile and trigger a ringing. It is thus possible, very simply, to combine an alarm clock and a repetition.
  • a rocker 120 actuates, via a pawl 120a, a trigger ratchet 122 of a conventional drive device 124, further comprising a drive plate 126 carrying a pawl 128 cooperating with a second ratchet 130.
  • a rocker 120 actuates, via a pawl 120a, a trigger ratchet 122 of a conventional drive device 124, further comprising a drive plate 126 carrying a pawl 128 cooperating with a second ratchet 130.
  • a cam similar to the cam 54 manages the triggering of the ring.
  • Flip-flop 120 is held in abutment on the cam, the hollow and protruding parts of which impart a forward and backward movement to the pawl 120a which, in its movements, can drive trigger ratchet 122 and trigger the ringing, in a similar manner to the conventional operation of this drive mechanism.
  • the pivoting of the camshaft can be controlled as previously described.
  • the unlocking of the energy source can be managed in a conventional manner, as described in the aforementioned work.
  • the camshaft may have only one cam for triggering the ring.
  • Unlocking the barrel can also be managed by a second cam blocking and unlocking the gear through a rocker, as in the previous embodiment.

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Description

Domaine techniqueTechnical area

La présente invention se rapporte au domaine de l'horlogerie mécanique. Elle concerne, plus particulièrement, un mécanisme de sonnerie comportant une source d'énergie pour entraîner des râteaux et un rouage reliant la source d'énergie à un organe régulateur, les râteaux étant reliés cinématiquement à la source d'énergie par l'intermédiaire d'un dispositif d'entraînement de sonnerie disposé dans le rouage et actionné par un organe de commande.The present invention relates to the field of mechanical watchmaking. More particularly, it relates to a striking mechanism comprising a power source for driving rakes and a gear train connecting the energy source to a regulating member, the rakes being kinematically connected to the power source via a power source. a ringing drive device arranged in the train and actuated by a control member.

Etat de la techniqueState of the art

On connaît ce genre de dispositif, notamment dans les montres appelées grandes sonneries. Dans les mécanismes conventionnels, le dispositif d'entraînement comprend un rochet de détente, un plateau d'entraînement portant un premier cliquet. Le rochet de détente est actionné par un deuxième cliquet monté sur une bascule. Lors du déclenchement, la bascule fait un saut brusque et le deuxième cliquet entraîne le rochet de détente, ce qui provoque le soulèvement du premier cliquet et rend la liberté à un rochet à canon, monté librement et sans jeu sur le canon du plateau d'entraînement. Les pièces courantes telles qu'un rochet des heures, un pignon de crémaillère et un doigt de pièce des quarts sont ajustés à carré sur le rochet à canon.We know this kind of device, especially in watches called big ringtones. In conventional mechanisms, the drive comprises a detent ratchet, a drive plate carrying a first pawl. The trigger ratchet is actuated by a second ratchet mounted on a rocker. When triggering, the rocker makes a sudden jump and the second pawl causes the trigger ratchet, which causes the lifting of the first ratchet and gives freedom to a barrel ratchet, mounted freely and without play on the barrel of the tray. training. Running parts such as a ratchet of hours, a rack pinion and a quarter room finger are squared fitted on the barrel ratchet.

Un tel dispositif ne sera pas expliqué en détail ici, mais on pourra se référer à l'ouvrage " Les montres compliquées" de F. Lecoultre, aux Editions Horlogères, pages 182-205 .Such a device will not be explained in detail here, but we can refer to the book " Complicated watches "by F. Lecoultre, at Horloger's Editions, pages 182-205 .

A l'instar du dispositif présenté dans l'ouvrage mentionné précédemment, le document CH 689337 propose un mécanisme de sonnerie dans lequel les sonneries au passage sont actionnées par des bras disposés rigidement sur un écrou monté sur la chaussée et qui agissent, tous les quarts d'heure, sur un levier de déclenchement qui va agir plus loin sur un cliquet similaire au deuxième cliquet du dispositif décrit ci-dessus.Like the device presented in the previously mentioned work, the document CH 689337 proposes a striking mechanism in which the passing ringtones are actuated by arms arranged rigidly on a nut mounted on the roadway and which act, every quarter of an hour, on a release lever which will act further on a similar ratchet at the second pawl of the device described above.

De tels dispositifs sont particulièrement difficiles à régler, car les bras de levier des bascules sont importants, pour permettre au deuxième cliquet d'avoir une course suffisante. En outre, tant un déclenchement au passage qu'un déclenchement manuel doit provoquer un entraînement similaire du rochet de détente, ce qui est très difficile à obtenir. Un premier but de l'invention est de proposer un système permettant de faciliter le réglage du déclenchement de la sonnerie.Such devices are particularly difficult to adjust, since the lever arms of the rockers are important, to allow the second pawl to have a sufficient stroke. In addition, both a trip trigger and a manual trigger should cause a similar drive of the trigger ratchet, which is very difficult to obtain. A first object of the invention is to provide a system for facilitating the setting of the triggering of the ring.

En outre, le déroulement d'une sonnerie comporte trois étapes, une première au cours de laquelle les râteaux tombent sur leur limaçon respectif pour prendre une information sur le temps courant, une deuxième au cours de laquelle les râteaux sont entraînés par la source d'énergie pour actionner les levées et les marteaux, et une troisième, de repos, dans laquelle les râteaux et la source d'énergie sont bloqués. La succession de ces étapes doit évidemment être coordonnée pour un bon fonctionnement de la sonnerie. Dans les mécanismes conventionnels, c'est une goupille disposée sur le râteau des minutes qui actionne le verrouillage et le déverrouillage de la source d'énergie. II est important que celle-ci ne soit libérée qu'après que les râteaux soient tombés sur leur limaçon. II est également très difficile de coordonner l'action du premier cliquet sur le rochet de détente et le déverrouillage de la source d'énergie par la goupille. Un deuxième but de l'invention est de faciliter la coordination des différentes étapes du déroulement d'une sonnerie.In addition, the conduct of a ring has three stages, a first in which the rakes fall on their respective snail to take information on the current time, a second during which the rakes are driven by the source of energy to operate the lifts and hammers, and a third, resting, in which the rakes and the energy source are blocked. The sequence of these steps must of course be coordinated for proper operation of the ring. In conventional mechanisms, it is a pin disposed on the rake minutes that activates the locking and unlocking of the power source. It is important that it is released only after the rakes have fallen on their snail. It is also very difficult to coordinate the action of the first pawl on the trigger ratchet and the unlocking of the energy source by the pin. A second object of the invention is to facilitate the coordination of the various stages of the course of a ring.

Divulgation de l'inventionDisclosure of the invention

Le mécanisme de sonnerie selon l'invention est défini par la revendication 1.The striking mechanism according to the invention is defined by claim 1.

Le dispositif d'entraînement peut être conventionnel, du type comprenant un rochet de détente, un plateau d'entraînement portant un cliquet. L'élément de liaison est alors agencé pour agir sur le rochet de détente lors du déclenchement de la sonnerie.The drive device may be conventional, of the type comprising a trigger ratchet, a drive plate carrying a pawl. The element of link is then arranged to act on the trigger ratchet when triggering the ring.

Le dispositif d'entraînement peut également être un différentiel. Dans ce cas, l'élément de liaison est agencé pour agir sur une entrée du différentiel lors du déclenchement de la sonnerie.The driving device can also be a differential. In this case, the connecting element is arranged to act on a differential input when triggering the ring.

Les mobiles d'entraînement sont agencés de manière à permettre à l'arbre à cames d'avancer d'un pas lors du déclenchement de sonnerie afin de permettre aux râteaux de tomber sur leur limaçon respectif.The drive mobiles are arranged to allow the camshaft to advance one step when triggering the ring to allow the rakes to fall on their respective snail.

Selon un mode de réalisation préféré, l'arbre à cames comprend une deuxième came pour actionner le verrouillage et le déverrouillage de la source d'énergie, les deux cames étant indexées l'une par rapport à l'autre.According to a preferred embodiment, the camshaft comprises a second cam for actuating the locking and unlocking of the energy source, the two cams being indexed relative to each other.

Afin de faciliter l'accès à l'arbre à cames pour son entraînement, celui-ci peut être doté d'un deuxième mobile d'entraînement, permettant de répartir, dans l'épaisseur du mécanisme, les différents organes coopérant avec ces mobiles.In order to facilitate access to the camshaft for its drive, it may be provided with a second drive wheel, for distributing, in the thickness of the mechanism, the various members cooperating with these mobiles.

Ainsi, les mobiles d'entraînement sont agencés de manière à permettre à l'arbre à cames d'avancer d'un premier pas lors du déclenchement de sonnerie afin de permettre aux râteaux de tomber sur leur limaçon respectif, d'un deuxième pas après que les râteaux soient tombées sur leur limaçon, pour passer à une deuxième étape du déroulement de la sonnerie au cours de laquelle les râteaux sont entraînés par la source d'énergie, et d'un troisième pas, après que la sonnerie se soit déroulée, pour passer à une troisième étape dans laquelle les râteaux et la source d'énergie sont bloqués.Thus, the drive mobiles are arranged to allow the camshaft to advance a first step during the triggering ring to allow the rakes to fall on their respective snail, a second step after that the rakes fell on their snail, to pass to a second stage of the course of the ringing during which the rakes are driven by the energy source, and of a third step, after the ringing took place, to proceed to a third step in which the rakes and the energy source are blocked.

Brève description des dessinsBrief description of the drawings

D'autres caractéristiques apparaîtront plus clairement à la lecture de la description qui suit, faite en référence au dessin annexé, dans lequel :

  • la figure 1 est une vue globale du mécanisme de sonnerie, de sa source d'énergie et du rouage qui les relie,
  • la figure 2 est une vue en coupe du différentiel préférentiellement utilisé dans le mécanisme selon l'invention,
  • les figures 3 à 6 sont des vues de l'organe de commande qui régit les différentes positions du différentiel,
  • la figure 7 montre différentes possibilités et dispositifs de sécurité que le système peut comporter, et
  • la figure 8 illustre schématiquement un autre mode de réalisation de l'invention.
Other characteristics will appear more clearly on reading the description which follows, made with reference to the appended drawing, in which:
  • the figure 1 is a global view of the striking mechanism, its energy source and the gear train that connects them,
  • the figure 2 is a sectional view of the differential preferably used in the mechanism according to the invention,
  • the Figures 3 to 6 are views of the controller that governs the different positions of the differential,
  • the figure 7 shows different possibilities and safety features that the system can have, and
  • the figure 8 schematically illustrates another embodiment of the invention.

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

Les différents éléments décrits et/ou représentés sont montés sur un bâti constitué d'une platine et de ponts. Pour faciliter la lecture des dessins, la platine, les ponts et les pivots n'ont pas été représentés.The various elements described and / or shown are mounted on a frame consisting of a plate and bridges. To facilitate the reading of the drawings, the plate, the bridges and the pivots were not represented.

La figure 1 montre un barillet 10 dont le système de remontage n'a pas été représenté, qui entraîne un train de rouage démultiplicateur 12, qui se termine par un organe régulateur, par exemple un volant d'inertie 14 muni d'un frein à masselottes comme le connaît l'homme du métier.The figure 1 shows a barrel 10 whose winding system has not been shown, which drives a reduction gear train 12, which ends with a regulating member, for example a flywheel 14 provided with a flyweight brake as the knows the skilled person.

La figure 1 représente également des pièces de sonnerie comprenant :

  • une série de limaçons 16 entraînés par le mouvement de base de la pièce d'horlogerie dans laquelle le mécanisme est monté, et fournissant des informations sur le temps courant, et
  • des râteaux 18 agencés pour coopérer avec ces limaçons 16 pour actionner des marteaux frappant sur des timbres afin de produire une sonnerie identifiant le temps courant.
The figure 1 also represents ringing parts comprising:
  • a series of snails 16 driven by the basic movement of the timepiece in which the mechanism is mounted, and providing information on current time, and
  • rakes 18 arranged to cooperate with these snails 16 to operate hammers striking stamps to produce a ring identifying the current time.

Ce mécanisme n'étant pas directement l'objet de l'invention, il ne sera pas décrit en détail. On pourra se référer à la demande EP 06121650.3 qui l'explique complètement. Les râteaux pourraient également faire partie d'un mécanisme plus conventionnel tel que décrit dans l'ouvrage précité ou encore dans le livre " Théorie de l'horlogerie" de Reymondin et al, Fédération des Ecoles Techniques, 1998, ISBN 2-940025-10-X, pages 219 à 224 .This mechanism is not directly the object of the invention, it will not be described in detail. We can refer to the request EP 06121650.3 who explains it completely. The rakes could also be part of a more conventional mechanism as described in the aforementioned work or in the book " Theory of Watchmaking "by Reymondin et al, Federation of Technical Schools, 1998, ISBN 2-940025-10-X, pages 219-224 .

Dans le mode de réalisation illustré sur les figures 1 à 7, le dispositif d'entraînement de la sonnerie est un différentiel 20 reliant cinématiquement le rouage 12 aux râteaux afin qu'ils soient entraînés au cours de la sonnerie par le barillet 10.In the embodiment illustrated on the Figures 1 to 7 , the ring driving device is a differential 20 kinematically connecting the gear 12 to the rakes so that they are driven during the ring by the barrel 10.

Un exemple de différentiel 20 particulièrement adapté à l'invention est représenté sur la figure 2. Sur un arbre d'axe A-A, il comprend une première roue solaire 22 constituant une première entrée du différentiel et reliée cinématiquement avec une roue du rouage 12. Selon l'exemple, le différentiel 20 est coaxial et solidaire avec cette roue du rouage 12. Cette roue solaire 22 engrène avec au moins un, typiquement trois, satellites inférieurs 24 montés à rotation sur un premier niveau d'une roue porte-satellites 26 munie d'une denture périphérique. Cette dernière constitue une deuxième entrée du différentiel. Elle est libre en rotation et coaxiale avec la roue solaire 22. Les trois satellites inférieurs 24 sont chacun montés coaxiaux et solidaires en rotation avec au moins un, typiquement trois, satellites supérieurs 28 montés à rotation sur un deuxième niveau de la roue porte-satellites 26. Les satellites supérieurs 28 engrènent avec une roue solaire supérieure 30, coaxiale et solidaire en rotation d'un renvoi 32. Cette roue solaire supérieure 30 constitue la sortie du différentiel.An example of a differential 20 particularly adapted to the invention is represented on the figure 2 . On a shaft AA axis, it comprises a first sun gear 22 constituting a first differential input and kinematically connected with a wheel of the train 12. According to the example, the differential 20 is coaxial and integral with the wheel of the gear 12. This sun gear 22 meshes with at least one, typically three, lower satellites 24 rotatably mounted on a first level of a planet carrier wheel 26 provided with a peripheral toothing. The latter constitutes a second differential input. It is free in rotation and coaxial with the sun gear 22. The three lower satellites 24 are each mounted coaxial and integral in rotation with at least one, typically three, upper satellites 28 rotatably mounted on a second level of the planet carrier wheel. 26. The upper satellites 28 meshes with an upper solar wheel 30, coaxial and rotationally integral with a reference 32. This upper sun gear 30 is the output of the differential.

Comme on peut le voir sur la figure 1, ce renvoi 32 est en prise avec un secteur denté 34 d'un palpeur des heures, destiné à coopérer avec le limaçon des heures. Un rochet des heures 36, destiné à actionner une levée pour sonner les heures, est également solidaire en rotation du renvoi 32. Le rochet des heures 36 est donc directement relié cinématiquement au palpeur des heures.As can be seen on the figure 1 this return 32 is engaged with a toothed sector 34 of an hours probe, intended to cooperate with the snail hour. A ratchet hour 36, for activating a lift to ring the hours, is also integral in rotation of the reference 32. The ratchet hours 36 is therefore directly kinematically connected to the feeler hours.

Ainsi, il apparaît que le différentiel peut occuper trois configurations utiles différentes en agissant sur les deux entrées, correspondant aux trois phases du déroulement de la sonnerie mentionnées ci-dessus.

  • Une première configuration dans laquelle la roue porte-satellites 26 est libre en rotation et dans laquelle la roue solaire inférieure 22 est bloquée : la roue solaire supérieure 30 et les éléments qui lui sont solidaires sont libres de tourner. Les satellites 24 et 28 tournent en effet autour de l'axe A-A du différentiel 20, car les satellites inférieurs 24 roulent sur la roue solaire inférieure 22 qui est bloquée.
  • Une deuxième configuration dans laquelle la roue porte-satellites 26 est bloquée en rotation et la roue solaire inférieure 22 est libre d'être entraînée par le rouage 12 : la roue solaire supérieure 30 est alors libre d'être entraînée par le rouage. En effet, dans ce cas, les satellites se comportent comme un simple renvoi vertical et transmettent la rotation de la roue solaire inférieure 22 à la roue solaire supérieure 30.
  • Une troisième configuration dans laquelle la roue porte-satellites 26 et la roue solaire inférieure 22 sont bloquées en rotation : la roue solaire supérieure 30 est elle aussi bloquée, de ce fait, en rotation. Les satellites 24 et 28 ne peuvent, dans ce cas, ni tourner sur eux-mêmes, ni tourner autour de l'axe A-A du différentiel.
Thus, it appears that the differential can occupy three different useful configurations by acting on the two inputs corresponding to the three phases of the ringing sequence mentioned above.
  • A first configuration in which the planet carrier wheel 26 is free to rotate and in which the lower sun gear 22 is locked: the upper sun gear 30 and the elements which are integral therewith are free to rotate. The satellites 24 and 28 rotate around the axis AA of the differential 20 because the lower satellites 24 roll on the lower sun gear 22 which is blocked.
  • A second configuration in which the planet wheel 26 is locked in rotation and the lower sun gear 22 is free to be driven by the gear 12: the upper sun gear 30 is then free to be driven by the gear train. Indeed, in this case, the satellites behave as a simple vertical reference and transmit the rotation of the lower sun gear 22 to the upper sun gear 30.
  • A third configuration in which the planet wheel 26 and the lower sun gear 22 are locked in rotation: the upper sun gear 30 is also locked, thereby, in rotation. The satellites 24 and 28 can not, in this case, turn on themselves or turn around the axis AA of the differential.

On comprend donc que, dans la première configuration ci-dessus, les râteaux 18 liés cinématiquement au palpeur des heures, peuvent bouger indépendamment du rouage 12 et du barillet 10. Cette configuration est celle qui est utilisée, lors du déclenchement de la sonnerie, pour permettre aux palpeurs des différents râteaux, de tomber sur leur limaçon respectif pour prendre une information relative au temps courant. La deuxième configuration permet de relier cinématiquement le barillet 10 aux râteaux 18. C'est donc celle qui est utilisée au cours du déroulement de la sonnerie pour que les râteaux se déplacent relativement à leur levée pour actionner les marteaux. Enfin, la troisième configuration correspond à la situation dans laquelle les râteaux 18 sont arrêtés et maintenus au repos.It is thus clear that, in the first configuration above, the rakes 18 kinematically connected to the hour sensor, can move independently of the gear train 12 and the cylinder 10. This configuration is the one that is used, when the bell is triggered, for allow the feelers of the different rakes, to fall on their respective snail to take information relative to the current time. The second configuration makes it possible to kinematically connect the barrel 10 to the rakes 18. This is the one that is used during the course of the ringing so that the rakes move relative to their lifting to operate the hammers. Finally, the third configuration corresponds to the situation in which the rakes 18 are stopped and kept at rest.

Comme on le comprendra mieux dans la suite de la description, le blocage de la roue solaire inférieure 22 se fait, selon le mode de réalisation préféré représenté sur les dessins, en bloquant le dévidement du barillet de sonnerie 10. Avantageusement, ce blocage est obtenu par un élément de butée 38 agencé de manière à évoluer entre une première et une deuxième positions extrêmes, l'élément de butée 38 croisant, dans l'une de ces positions extrêmes, la course d'une goupille 40 montée en saillie sur l'organe régulateur 14. C'est en effet à cet endroit du rouage que le couple est le moins important et que le blocage peut se faire avec une sécurité optimale. Ces éléments sont visibles sur la figure 6 et leur actionnement sera décrit ci-après.As will be better understood in the following description, the blocking of the lower sun gear 22 is, according to the preferred embodiment shown in the drawings, by blocking the unwinding of the ringer barrel 10. Advantageously, this lock is obtained by a stop element 38 arranged to move between a first and a second extreme position, the stop element 38 crossing, in one of these extreme positions, the stroke of a pin 40 projecting on the This is where the torque is the least important and the locking can be done with optimum safety. These elements are visible on the figure 6 and their actuation will be described below.

On peut voir sur la figure 3 que le blocage de la roue porte-satellites 26 se fait directement par l'intermédiaire d'un verrou 42, ayant la forme d'un crochet 42a disposé sur une bascule 42b et susceptible d'évoluer entre une première et une deuxième positions extrêmes, le crochet 42a coopérant avec la denture de la roue porte-satellites 26 lorsqu'il se trouve dans l'une de ces positions extrêmes.We can see on the figure 3 that the locking planet wheel 26 is made directly via a latch 42, having the shape of a hook 42a disposed on a latch 42b and capable of changing between a first and a second extreme positions, the hook 42a cooperating with the toothing of the planet carrier wheel 26 when it is in one of these extreme positions.

Il est particulièrement important que ces différentes phases soient coordonnées avec précision. L'invention propose une solution particulièrement avantageuse pour y parvenir en commandant la manière dont l'élément de butée 38, d'une part, et le verrou 42, d'autre part, évoluent chacun entre leur première et deuxième positions extrêmes.It is particularly important that these different phases are precisely coordinated. The invention provides a particularly advantageous solution to achieve this by controlling how the stop element 38, on the one hand, and the latch 42, on the other hand, each evolve between their first and second extreme positions.

Un arbre à cames 50, particulièrement visible sur.la figure 3, est monté pivotant dans le bâti et comporte une première came 52 destinée à commander le blocage de la roue solaire inférieure 22 et une deuxième came 54 commandant le blocage de la roue porte-satellites 26.A camshaft 50, particularly visible on.la figure 3 , is pivotally mounted in the frame and has a first cam 52 for controlling the locking of the lower sun gear 22 and a second cam 54 controlling the locking of the planet wheel 26.

Les cames et les étoiles sont représentées individuellement à la figure 4. L'arbre à cames 50 est positionné par une première étoile 56 comportant un premier niveau 56a (figure 4a) muni de douze dents coopérant avec un sautoir 58 et un deuxième niveau 56b (figure 4b) ne comportant que quatre dents, régulièrement réparties sur un taillage de douze dents et superposées avec les dents du premier niveau. Cette étoile 56 remplit également la fonction de mobile d'entraînement de l'arbre 50, comme il sera décrit en détail par la suite.Cams and stars are represented individually at figure 4 . The camshaft 50 is positioned by a first star 56 having a first level 56a ( figure 4a ) provided with twelve teeth cooperating with a jumper 58 and a second level 56b ( figure 4b ) having only four teeth, regularly distributed on a cut of twelve teeth and superimposed with the teeth of the first level. This star 56 also performs the function of driving mobile shaft 50, as will be described in detail later.

Le fonctionnement du différentiel faisant intervenir trois configurations, l'étoile de positionnement 56 est nombrée selon un multiple de trois, douze présentant un pas angulaire entre deux positions consécutives avantageux par rapport à la taille de ces pièces et à l'espace disponible.The operation of the differential involving three configurations, the positioning star 56 is numbered in a multiple of three, twelve having an angular pitch between two consecutive advantageous positions with respect to the size of these parts and the available space.

La première came 52 représentée à la figure 4c, présente une succession de parties saillantes et de parties creuses. Comme mentionné ci-dessus et illustré par la figure 6, le blocage de la roue solaire inférieure 22 se fait au niveau de l'organe régulateur 14. L'élément de butée 38 peut être disposé à l'extrémité d'une double bascule 58, comprenant deux bascules 58a et 58b articulées l'une avec l'autre par un tenon 58c solidaire de l'une d'elles 58a et coopérant avec un logement 58d ménagé dans l'autre 58b. Un ressort 60 est disposé de manière à appuyer l'extrémité de la bascule 58a contre la première came 52. Les points de pivot de la double bascule 58 sont agencés, dans l'exemple, de manière à ce que, lorsque la bascule 58a appuie contre une partie saillante de la came 52, l'élément de butée 38 coopère avec l'organe régulateur 14, ce qui bloque la roue solaire inférieure 22. A l'inverse, lorsque la came 52 présente une partie creuse à la bascule 58a, la roue solaire inférieure 22 est libre. Ainsi, pour un cycle de sonnerie, la came 52 est dotée d'une succession d'une partie saillante, d'une partie creuse et d'une partie saillante, cette série étant répétée quatre fois selon l'exemple d'un arbre à cames 50 à douze positions.The first cam 52 shown in FIG. figure 4c , has a succession of projecting parts and hollow parts. As mentioned above and illustrated by the figure 6 , the locking of the lower sun wheel 22 is at the level of the regulating member 14. The stop element 38 can be disposed at the end of a double rocker 58, comprising two rocker bars 58a and 58b hinged one with the other by a pin 58c secured to one of them 58a and cooperating with a housing 58d formed in the other 58b. A spring 60 is arranged to support the end of the rocker 58a against the first cam 52. The pivot points of the double rocker 58 are arranged, in the example, so that when the rocker 58a supports against a protruding part of the cam 52, the stop element 38 cooperates with the regulating member 14, which blocks the lower sun gear 22. Conversely, when the cam 52 has a hollow portion at the rocker 58a, the lower sun wheel 22 is free. Thus, for a ringing cycle, the cam 52 is provided with a succession of a protruding part, a hollow part and a protruding part, this series being repeated four times according to the example of a shaft. cams 50 to twelve positions.

La deuxième came 54 (figure 4d) présente également une succession de parties saillantes et de parties creuses. Un ressort 62 est agencé de manière à appuyer l'extrémité de la bascule 42 ne portant pas le crochet 42a contre la came 54. Dans l'exemple, le point de pivot de la bascule 42 est agencé de manière à ce que, lorsque la came 54 présente une partie saillante à la bascule 42, le crochet 42a est en dehors de la denture de la roue porte-satellites 26 qui est donc libre en rotation. A l'inverse, lorsque la bascule 42 appuie contre un creux de la came, la roue porte-satellites 26 est bloquée. Ainsi, pour un cycle de sonnerie, la came 54 est dotée d'une succession d'une partie saillante et de deux parties creuses, cette série étant répétée quatre fois selon l'exemple d'un arbre à cames à douze positions.The second cam 54 ( figure 4d ) also has a succession of projecting parts and hollow parts. A spring 62 is arranged to support the end of the latch 42 not carrying the hook 42a against the cam 54. In the example, the pivot point of the latch 42 is arranged so that when the Cam 54 has a protruding portion at the latch 42, the hook 42a is outside the toothing of the planet carrier wheel 26 which is free to rotate. Conversely, when the rocker 42 presses against a hollow of the cam, the planet wheel 26 is blocked. Thus, for a ringing cycle, the cam 54 is provided with a succession of a protruding part and two hollow parts, this series being repeated four times according to the example of a twelve-position camshaft.

L'homme du métier saura coordonner les deux cames de manière à avoir les positions suivantes: Configura tion Première came Roue solaire inférieure Deuxième came Roue porte-satellites 1 Saillie Bloquée Saillie Libre 2 Creux Libre Creux Bloquée 3 Saillie Bloquée Creux Bloquée Those skilled in the art will know how to coordinate the two cams so as to have the following positions: Configuration First cam Lower solar wheel Second cam Satellite carrier wheel 1 projection blocked projection Free 2 Hollow Free Hollow blocked 3 projection blocked Hollow blocked

Avantageusement, l'arbre comporte un méplat avec lequel coopère une structure complémentaire 52a, 54a que présente le diamètre intérieur des cames. Ainsi, celles-ci sont directement usinées de manière à ce que leurs parties saillantes et creuses soient coordonnées lorsqu'elles sont disposées sur l'arbre. Il peut en être de même pour le mobile d'entraînement. Un autre type d'indexation, par exemple par une goupille traversant les cames, peut être envisagée.Advantageously, the shaft comprises a flat part with which a complementary structure 52a, 54a which has the inside diameter of the cams cooperates. Thus, they are directly machined so that their protruding and hollow portions are coordinated when they are arranged on the shaft. It may be the same for the training mobile. Another type of indexing, for example by a pin passing through the cams, can be envisaged.

Afin d'expliquer comment l'arbre à cames 50 est entraîné pour passer d'une configuration à une autre, on partira de la configuration 3 dans laquelle les râteaux 18 sont au repos. Le passage à la configuration 1 se fait lors du déclenchement d'une sonnerie, c'est-à-dire soit au passage, soit à la demande.In order to explain how the camshaft 50 is driven to move from one configuration to another, one will start from the configuration 3 in which the rakes 18 are at rest. The transition to configuration 1 is done when triggering a ring, that is to say, either on the way or on demand.

Pour le déclenchement au passage, on pourra se référer à la figure 3 qui montre un doigt souple 70 destiné à coopérer avec le deuxième niveau 56b de l'étoile 56 et entraîné en rotation par le mouvement de base de la pièce d'horlogerie. Par exemple, le doigt 70 effectue un mouvement de va-et-vient sous l'action d'une douille 72 dont le pourtour définit une sorte de colimaçon et comporte un plan incliné 72a. Le doigt 70 est maintenu appuyé contre la came par un ressort 74 au niveau d'un ergot 70a dont il est muni. La douille est entraînée, dans le sens antihoraire par rapport à la figure 3, par la roue des minutes du mouvement de base, à raison d'un tour par heure, ce qui fait pivoter le doigt 70 dans le sens antihoraire et charge le ressort 74. Toutes les heures, au passage de l'heure, l'ergot passe le plan incliné et le doigt 70, sous l'effet du ressort 74, pivote dans le sens horaire et entraîne l'étoile 56 d'un pas, faisant ainsi passer le différentiel à la configuration 1.For triggering in passing, we can refer to the figure 3 which shows a flexible finger 70 intended to cooperate with the second level 56b of the star 56 and rotated by the basic movement of the timepiece. For example, the finger 70 moves back and forth under the action of a sleeve 72 whose periphery defines a kind of spiral and has an inclined plane 72a. The finger 70 is held against the cam by a spring 74 at a lug 70a which it is provided. The bushing is driven counter-clockwise from the figure 3 , by the minute wheel of the basic movement, at a rate of one revolution per hour, which rotates the finger 70 counterclockwise and loads the spring 74. Every hour, at the passage of time, the lug passes the inclined plane and the finger 70, under the effect of the spring 74, rotates clockwise and drives the star 56 one step, thus passing the differential to the configuration 1.

La douille 72 pourrait aussi comporter une pluralité de plans inclinés de manière à actionner le doigt tous les quarts d'heure, pour sonner les quarts, un isolateur pouvant alors être prévu s'il est souhaité que les heures ne soient pas sonnées lors de la sonnerie des quarts.The sleeve 72 could also include a plurality of inclined planes so as to actuate the finger every quarter of an hour, to ring quarters, an isolator can then be provided if it is desired that the hours are not ringed during the quarter ringing.

Pour le déclenchement manuel, on se référera à la figure 5. II est proposé que l'utilisateur actionne une targette 76 solidaire d'une crémaillère 78, à l'instar d'une répétition à minutes conventionnelle. La crémaillère 78 engrène avec une denture extérieure d'un anneau 80, coaxial avec le barillet de sonnerie 10. Cet anneau 80 est relié à l'arbre du barillet 10 par un ressort radial 82 possédant un moyeu 82a monté à carré sur l'arbre et typiquement deux lames élastiques 82b, exerçant une pression radiale vers l'extérieure de la roue et se terminant par une portion dentée coopérant avec une denture intérieure que comporte l'anneau 80. Le ressort 82 et la denture intérieure de l'anneau 80 sont agencés de manière à former un encliquetage entre l'arbre du barillet 10 et la crémaillère 78. Ainsi, le pivotement de l'anneau 80 dans un sens entraîne l'arbre de barillet en rotation, mais ni le pivotement de l'arbre du barillet dans l'autre sens, par exemple lors du démontage du mouvement, ni l'entraînement de l'arbre lors du remontage manuel du barillet de sonnerie ne provoque de déplacement de la targette 76.For manual triggering, reference is made to figure 5 . It is proposed that the user operates a bolt 76 integral with a rack 78, like a conventional minute repeater. The rack 78 meshes with an external toothing of a ring 80, coaxial with the striking barrel 10. This ring 80 is connected to the shaft of the barrel 10 by a radial spring 82 having a hub 82a mounted squarely on the shaft and typically two resilient blades 82b, exerting a radial pressure towards the outside of the wheel and ending in a toothed portion cooperating with an internal toothing that includes the ring 80. The spring 82 and the internal toothing of the ring 80 are arranged so as to form a snap between the shaft of the barrel 10 and the rack 78. Thus, the pivoting of the ring 80 in one direction drives the barrel shaft in rotation, but neither the pivoting of the barrel shaft in the other direction, for example during the disassembly of the movement, nor the drive of the shaft during the manual winding of the barrel of ringing causes displacement of the bolt 76.

La denture extérieure de l'anneau 80 transmet le mouvement de la targette à une roue 84 avec laquelle elle engrène. Cette roue 84 est munie d'un système de rappel 86, par exemple un ressort spiral, permettant le retour de la targette 76 à sa position de repos puisque le système d'encliquetage mentionné ci-dessus ne permet pas que ce retour soit assuré par l'énergie fournie par le barillet 10, comme c'est le cas dans les répétitions classiques. La roue 84 porte également un bras 88 monté sur son axe et se terminant par une zone d'appui 88a destinée à coopérer avec une deuxième étoile 90 (figure 4e), jouant également le rôle d'élément d'entraînement de l'arbre 50, pour faire avancer l'arbre à cames 50 d'un pas et faire passer le différentiel à la configuration 1. Cette étoile 90 est taillée sur le nombre douze mais ne comporte que quatre dents, c'est-à-dire une par cycle de sonnerie. Elle est également bien visible sur la figure 7.The outer toothing of the ring 80 transmits the movement of the bolt to a wheel 84 with which it meshes. This wheel 84 is provided with a return system 86, for example a spiral spring, allowing the return of the bolt 76 to its rest position since the latching system mentioned above does not allow this return to be ensured by the energy provided by the barrel 10, as is the case in conventional repetitions. The wheel 84 also carries an arm 88 mounted on its axis and ending with a bearing zone 88a intended to cooperate with a second star 90 ( figure 4e ), also acting as drive element of the shaft 50, to advance the camshaft 50 by one step and pass the differential to the configuration 1. This star 90 is cut to the number twelve but do not has only four teeth, that is one per ringing cycle. It is also clearly visible on the figure 7 .

Ce dispositif d'enclenchement manuel fait l'objet d'une demande de brevet n° EP 06124462.0 dans laquelle il est décrit plus en détail.This manual engagement device is the subject of a patent application no. EP 06124462.0 in which it is described in more detail.

Dans une version simplifiée, on pourrait prévoir qu'une simple bascule entraînée par un poussoir disposé dans la carrure de la montre, entraîne l'étoile 90 d'un pas, sans réarmer le barillet.In a simplified version, it could be provided that a simple rocker driven by a pusher disposed in the middle part of the watch, drives the star 90 by one step, without rearming the barrel.

Pour lé passage de l'arbre à cames à la configuration 2, les dents de l'étoile 90 sont susceptibles de croiser le chemin d'une roue de transmission 92, mise en rotation en permanence par le rouage principal du mouvement. Typiquement, cette roue est entraînée par la roue de petite moyenne à raison d'un tour en trente secondes environ. L'homme du métier saura déterminer la forme des dents de l'étoile 90 et de la roue de transmission 92 pour assurer une bonne transmission du couple.For the passage of the camshaft to the configuration 2, the teeth of the star 90 are likely to cross the path of a transmission wheel 92, permanently rotated by the main wheel of the movement. Typically, this wheel is driven by the wheel of small average at the rate of one turn in thirty seconds approximately. The skilled person will determine the shape of the teeth of the star 90 and the transmission wheel 92 to ensure good torque transmission.

Plus particulièrement, les dents de l'étoile 90 sont disposées sur l'arbre à cames de manière à croiser le chemin de la roue de transmission 92 lorsque le différentiel est dans sa première configuration. L'arbre à cames 50 est donc entraîné lentement d'un pas et fait passer le différentiel 20 à la configuration 2.More particularly, the teeth of the star 90 are disposed on the camshaft so as to cross the path of the transmission wheel 92 when the differential is in its first configuration. The camshaft 50 is thus driven slowly by one step and passes the differential 20 to the configuration 2.

On rappellera que, dans la configuration 2, les râteaux 18 sont reliés cinématiquement au barillet 10 de manière à permettre le déroulement de la sonnerie en tant que tel. L'arbre 50 ne doit donc avancer d'un pas supplémentaire qu'à la fin de la sonnerie.It will be recalled that, in configuration 2, the rakes 18 are kinematically connected to the barrel 10 so as to allow the ringing to proceed as such. The shaft 50 must therefore move one step further than the end of the ring.

Pour ce faire, un des râteaux 18, de préférence le râteau des minutes 18a, car c'est lui qui intervient en dernier dans la sonnerie, ou une pièce qui lui est liée cinématiquement, permet le déplacement d'un élément de transmission à la fin de la sonnerie. En référence à la figure 5, cet élément peut être un doigt 94 agencé de manière à coopérer avec la première étoile 56 pour faire avancer l'arbre à cames 50 d'un pas. Dans ce cas, le râteau des minutes 18a porte une goupille 96 destinée à entraîner le doigt 94. Avantageusement, ce doigt 94 se situe à l'extrémité d'une portion élastique d'une bascule 98, ce qui améliore la sécurité du dispositif. Un ressort 99 maintient la bascule 98 en appui contre la goupille 96. Ainsi, en fin de sonnerie, l'arbre à cames 50 avance d'un pas, ce qui permet au différentiel de passer à la configuration 3. Un nouveau cycle de sonnerie peut démarrer.To do this, one of the rakes 18, preferably the minute rake 18a, because it is he who intervenes last in the ring, or a piece which is kinematically related thereto, allows the displacement of a transmission element to the end of the ring. With reference to the figure 5 , this element may be a finger 94 arranged to cooperate with the first star 56 to advance the camshaft 50 by one step. In this case, the minute rake 18a carries a pin 96 intended to drive the finger 94. Advantageously, this finger 94 is located at the end of an elastic portion of a rocker 98, which which improves the security of the device. A spring 99 holds the rocker 98 against the pin 96. Thus, at the end of the ring, the camshaft 50 advances by one step, which allows the differential to move to the configuration 3. A new ringing cycle can start.

Pour résumer, lorsque la sonnerie est au repos, le différentiel 20 est dans sa configuration 3, le barillet 10 étant verrouillé, et les râteaux 18 étant ainsi maintenues en position. Lors du déclenchement de la sonnerie, soit manuel, soit au passage, l'arbre à cames 50 est entraîné d'un pas, ce qui permet d'amener le différentiel 20 dans sa configuration 1. Les râteaux sont alors débrayés du rouage de sonnerie 12 et ils peuvent alors tomber librement, sous l'effet de leur ressort respectif, sur leur limaçon pour prendre une information relative au temps courant. Cette étape est très rapide et se fait pendant que la roue de transmission 92 entraîne la deuxième étoile 90 et fait passer le différentiel 20 dans sa configuration 2. Les râteaux sont alors reliés cinématiquement au barillet 10 qui est libéré. Le sens de déplacement des râteaux s'inverse alors et leur secteur denté actionne les levées et les marteaux pour produire la sonnerie. Enfin, à la fin de la sonnerie, la goupille 96 provoque l'avance d'un pas supplémentaire de l'arbre à cames 50 de manière à ce que le mécanisme se trouve à nouveau dans sa position de repos.To summarize, when the ring is at rest, the differential 20 is in its configuration 3, the barrel 10 being locked, and the rakes 18 thus being held in position. When triggering the ring, either manually or in passing, the camshaft 50 is driven one step, which allows to bring the differential 20 in its configuration 1. The rakes are then disengaged from the ring gear 12 and they can then fall freely, under the effect of their respective spring, on their snail to take information relative to the current time. This step is very fast and is done while the transmission wheel 92 drives the second star 90 and passes the differential 20 in its configuration 2. The rakes are then kinematically connected to the barrel 10 which is released. The direction of movement of the rakes is then reversed and their toothed sector activates the levies and hammers to produce the ring. Finally, at the end of the ring, the pin 96 causes the advance of an additional step of the camshaft 50 so that the mechanism is again in its rest position.

On notera que l'utilisation d'un arbre à cames pour commander le dispositif d'entraînement de la sonnerie est très intéressante pour la sécurité du mécanisme. Grâce au fait que le doigt 70 coopère avec le deuxième niveau 56b de l'étoile 56, si un déclenchement au passage intervient au cours du déroulement d'une sonnerie qui vient d'être déclenchée manuellement, alors le doigt 70 ne va trouver sur son chemin qu'un espace dépourvu de dent et ne butera pas contre l'arbre à cames. Cette sécurité est particulièrement avantageuse car tenter de déclencher une sonnerie au passage alors qu'une sonnerie est déjà en cours provoquerait de graves dommages au mécanisme.Note that the use of a camshaft to control the ring driver is very interesting for the safety of the mechanism. Thanks to the fact that the finger 70 cooperates with the second level 56b of the star 56, if a trip trigger occurs during the course of a ring that has just been triggered manually, then the finger 70 will not find on his way that a space devoid of teeth and will not abut against the camshaft. This security is particularly advantageous because trying to trigger a ringing in passing while a ringing is already in progress would cause serious damage to the mechanism.

Le même effet est obtenu pour le déclenchement manuel grâce à la structure de l'étoile 90. Si un déclenchement manuel intervient au cours du déroulement d'une sonnerie qui vient d'être déclenchée manuellement ou au passage, alors le bras 88 ne va trouver sur son chemin qu'un espace dépourvu de dent et ne butera pas contre l'arbre 50. Combiné au système de remontage manuel décrit ci-dessus, il est même possible de remonter le barillet 10 uniquement par la targette, soit pendant une sonnerie, soit en ajustant la course de la targette de manière à ne pas déclencher de sonnerie.The same effect is obtained for manual triggering thanks to the structure of the star 90. If a manual trigger occurs during the course of a ring that has just been triggered manually or by the way, then the arm 88 will not find on its way a toothless space and will not abut against the shaft 50. Combined with the manual winding system described above, it is even possible to refit the barrel 10 only by the bolt, or during a ring, or by adjusting the stroke of the bolt so as not to sound a bell.

En variante, le déverrouillage de la source d'énergie peut être géré de manière classique, tel que décrit dans l'ouvrage précité. Dans ce cas, l'arbre à cames peut ne comporter qu'une seule came pour le déclenchement de la sonnerie.Alternatively, the unlocking of the energy source can be managed in a conventional manner, as described in the aforementioned work. In this case, the camshaft may have only one cam for triggering the ring.

Dans ce mode de réalisation, l'arbre à cames permet de centraliser en un seul endroit du mouvement l'ensemble des contrôles du mécanisme de la sonnerie. Il est ainsi possible, de manière très simple, de disposer des mécanismes de blocage de la sonnerie ou d'autres permettant, au contraire, de déclencher la sonnerie à des moments programmés.In this embodiment, the camshaft makes it possible to centralize in one place of movement all the controls of the striking mechanism. It is thus possible, in a very simple way, to have the mechanisms for blocking the ringing or other allowing, on the contrary, to trigger the ring at scheduled times.

Ainsi, le mécanisme selon l'invention peut, en outre, comporter un dispositif de silencieux 100 représenté sur la figure 7 et permettant à l'utilisateur d'empêcher le déclenchement au passage de la sonnerie. A cet effet, un poussoir ou un correcteur non représenté est disposé dans la carrure de la montre et fait évoluer une coulisse 102 entre une première position de repos et une deuxième position. Cette coulisse 102 est montée mobile en translation sur la platine du mécanisme de sonnerie et comporte, dans ce but, deux oblongs 102a dans lesquels passent des vis à portée.Thus, the mechanism according to the invention may, in addition, comprise a silencer device 100 represented on the figure 7 and allowing the user to prevent the triggering of the ringing. For this purpose, a pusher or corrector not shown is arranged in the middle part of the watch and makes a slide 102 evolve between a first rest position and a second position. This slide 102 is mounted movably in translation on the plate of the striking mechanism and comprises, for this purpose, two oblongs 102a in which pass screws.

La coulisse 102 coopère avec un tenon 104 disposé sur une bascule 106. Un verrou 108 est monté pivotant, coaxial à la bascule 106. Le verrou 108 est agencé de manière à pouvoir évoluer entre une première position de repos et une deuxième position dans laquelle il coopère avec la deuxième étoile 90, pour empêcher la rotation de l'arbre 50. Plus particulièrement, le verrou 108 présente une échancrure qui épouse sensiblement la circonférence de l'arbre à cames. L'échancrure définit un doigt 108a susceptible d'interagir avec les dents de l'étoile 90. Ces dents sont conformées de manière à venir s'appuyer sensiblement orthogonalément sur le doigt 108a, pour obtenir un blocage efficace.The slide 102 cooperates with a pin 104 disposed on a rocker 106. A latch 108 is pivotally mounted, coaxial with the rocker 106. The latch 108 is arranged to be able to move between a first rest position and a second position in which it cooperates with the second star 90, to prevent rotation of the shaft 50. More particularly, the lock 108 has a notch that substantially matches the circumference of the camshaft. The notch defines a finger 108a capable of interacting with the teeth of the star 90. These teeth are shaped so as to bear substantially orthogonally on the finger 108a, to obtain an effective locking.

Le verrou 108 est doté d'un tigeron 110 susceptible de coopérer avec une surface d'appui 106a que présente la bascule 106. Un premier ressort 112 maintient le tigeron 110 en appui contre la surface 106a. La force exercée par ce ressort 112 sur le verrou tend à l'éloigner de l'arbre à cames 50 et à le ramener à sa première position. Un deuxième ressort 114 est agencé de manière à plaquer la bascule 106 contre la coulisse 102.The lock 108 is provided with a rod 110 capable of cooperating with a bearing surface 106a that the rocker 106 presents. A first spring 112 keeps the rod 110 in abutment against the surface 106a. The force exerted by this spring 112 on the lock tends to move it away from the camshaft 50 and bring it back to its first position. A second spring 114 is arranged to press the rocker 106 against the slide 102.

Dans le mode de réalisation illustré, le doigt 108a bloque la rotation de l'arbre 50 lorsque la coulisse 102 est tirée, c'est-à-dire lorsqu'elle est dans sa position la plus éloignée par rapport à l'arbre 50. Les positions extrêmes de la coulisse 102 peuvent être marquées par un système de cran, avantageusement obtenu au niveau du correcteur ou du poussoir. Ainsi, lorsque l'utilisateur actionne le correcteur de manière à tirer la coulisse 102, la bascule 106 pivote et, le ressort 112 étant moins fort que le ressort 114, le verrou 108 est amené dans sa deuxième position et bloque le pivotement de l'arbre à cames 50. Inversement, lorsque la coulisse 102 est poussée, le verrou 108 revient à sa première position sous l'effet du ressort 112, libérant l'arbre à cames 50.In the illustrated embodiment, the finger 108a blocks the rotation of the shaft 50 when the slide 102 is pulled, that is to say when it is in its furthest position relative to the shaft 50. The extreme positions of the slide 102 may be marked by a notch system, advantageously obtained at the level of the corrector or the pusher. Thus, when the user actuates the corrector so as to pull the slide 102, the rocker 106 pivots and, the spring 112 being less strong than the spring 114, the lock 108 is brought into its second position and blocks the pivoting of the Conversely, when the slide 102 is pushed, the lock 108 returns to its first position under the effect of the spring 112, releasing the camshaft 50.

Grâce au fait que le verrou 108 et la bascule 106 ne sont pas solidaires, le verrou 108 peut être amené dans sa deuxième position par un autre dispositif. Ainsi, une deuxième bascule 116 est également montée coaxiale par rapport à la première. Cette deuxième bascule 116 est munie d'un palpeur 116a maintenu par un troisième ressort 118 en appui contre une came 120 effectuant un tour, sensiblement en une durée égale à la réserve de marche du barillet de sonnerie 10. La came 120 présente un creux disposé de manière à se présenter au niveau de la bascule lorsque la réserve de marche du barillet est inférieure à un seuil prédéterminé.Due to the fact that the lock 108 and the rocker 106 are not integral, the lock 108 can be brought into its second position by another device. Thus, a second flip-flop 116 is also mounted coaxial with respect to the first. This second flip-flop 116 is provided with a feeler 116a held by a third spring 118 in abutment against a cam 120 rotating one round, substantially in a time equal to the power reserve of the striking barrel 10. The cam 120 has a hollow arranged so as to occur at the level of the rocker when the power reserve of the barrel is below a predetermined threshold.

Lorsque la réserve de marche du barillet 10 devient inférieure à ce seuil prédéterminé, la bascule 116 pivote et, le ressort 112 étant moins fort que le ressort 118, le verrou 108 est amené dans sa deuxième position et bloque le pivotement de l'arbre à cames 50. Inversement, lorsque la réserve de marche repasse au-dessus du seuil prédéterminé, le verrou revient à sa première position sous l'effet du ressort 112, libérant l'arbre à cames 50.When the power reserve of the barrel 10 becomes lower than this predetermined threshold, the flip-flop 116 pivots and, the spring 112 being less strong than the spring 118, the latch 108 is brought into its second position and blocks the pivoting of the shaft. 50. Conversely, when the power reserve reverts above the predetermined threshold, the latch returns to its first position under the effect of the spring 112, releasing the camshaft 50.

Dans le cas où le système de déclenchement manuel de la sonnerie permet de réarmer le barillet de sonnerie 10, il est utile de prévoir que la sonnerie puisse se dérouler, même si le dispositif de silencieux 100 est enclenché. A cet effet, lors du déclenchement manuel, le bras 88 actionnant l'étoile 90 est disposé de manière à croiser, dans sa course, le verrou 108 si celui-ci est dans sa deuxième position, de manière à l'amener dans sa première position le temps nécessaire pour faire avancer l'arbre 50. Ce dégagement doit se faire avant que le bras 88 exerce une poussée sur l'étoile 90. Ensuite, une fois que l'arbre a pivoté, étant donné que le verrou se trouve en regard de portions non dentées de l'étoile 90, il n'exerce plus de blocage, jusqu'à ce que, à la fin de la sonnerie, il coopère avec une dent suivante.In the case where the manual triggering system for ringing can reset the barrel 10, it is useful to provide that the ringing can take place, even if the silencer device 100 is engaged. For this purpose, during manual tripping, the arm 88 actuating the star 90 is arranged to intersect, in its race, the latch 108 if it is in its second position, so as to bring it into its first position. position the time necessary to advance the shaft 50. This clearance must be done before the arm 88 exerts a thrust on the star 90. Then, once the shaft has rotated, since the lock is in Looking at the toothless portions of the star 90, it no longer locks until, at the end of the ring, it cooperates with a next tooth.

L'homme du métier pourra prévoir d'autres cames pour actionner le dispositif de silencieux. Par exemple, une came entraînée par le rouage du mouvement de base à raison d'un tour par vingt-quatre heures peut définir des parties de la journée pendant lesquelles la sonnerie au passage est enclenchée et d'autres, par exemple pendant la nuit, pendant lesquelles elle est bloquée.The skilled person may provide other cams to actuate the silencer device. For example, a cam driven by the base gear wheel at a rate of one revolution per twenty-four hours may define parts of the day during which the ringing pass is engaged and others, for example during the night, during which time she is stuck.

A l'instar du bras 88 actionné par le mécanisme de déclenchement manuel, l'homme du métier pourra agencer un dispositif de déclenchement programmable de la sonnerie qui peut trouver sa place aussi bien dans un mécanisme de grande sonnerie que dans un mécanisme de répétition à minutes géré par un arbre à cames. Ce dispositif de déclenchement programmable peut consister en un bras destiné à coopérer avec un mobile d'entraînement, tel que l'étoile 56. Le bras est actionné par l'intermédiaire d'un système de type GMT ou par une roue vingt-quatre heures entraînée par le mouvement principal. Un système de réglage couplé à un affichage par un lanternage permet de définir l'heure à laquelle le bras va croiser le mobile d'entraînement et déclencher une sonnerie. Il est ainsi possible, très simplement, de combiner un réveil et une répétition.Like the arm 88 actuated by the manual triggering mechanism, the skilled person can arrange a programmable triggering device of the ring which can find its place as well in a mechanism of large ring that in a mechanism of repetition to minutes managed by a camshaft. This programmable triggering device may consist of an arm intended to cooperate with a driving mobile, such as star 56. The arm is actuated via a GMT type system or by a twenty-four hour wheel. driven by the main movement. An adjustment system coupled with a display by a lanternage makes it possible to define the time at which the arm will cross the driving mobile and trigger a ringing. It is thus possible, very simply, to combine an alarm clock and a repetition.

L'utilisation d'un arbre à cames pour gérer les différentes phases du déroulement d'une sonnerie peut également être intégré à un mécanisme de grande sonnerie de type conventionnel, comme le montre la figure 8. Une bascule 120 actionne, via un cliquet 120a, un rochet de détente 122 d'un dispositif d'entraînement conventionnel 124, comportant en outre un plateau d'entraînement 126 portant un cliquet 128 coopérant avec un deuxième rochet 130. On pourra se référer à l'ouvrage précité intitulé « Les montres compliquées » pour une description complète du fonctionnement d'un dispositif d'entraînement de sonnerie conventionnel.The use of a camshaft to manage the different phases of the running of a ring can also be integrated with a conventional ring-type mechanism, as shown in FIG. figure 8 . A rocker 120 actuates, via a pawl 120a, a trigger ratchet 122 of a conventional drive device 124, further comprising a drive plate 126 carrying a pawl 128 cooperating with a second ratchet 130. Reference may be made to the aforementioned work entitled "Complicated Watches" for a full description of the operation of a conventional bell driver.

Une came similaire à la came 54 gère le déclenchement de la sonnerie. La bascule 120 est maintenue en appui sur la came, dont les parties creuses et saillantes impriment un mouvement d'avance et de recul au cliquet 120a qui peut, dans ses mouvements, entraîner le rochet de détente 122 et déclencher la sonnerie, de manière semblable au fonctionnement classique de ce mécanisme d'entraînement. Le pivotement de l'arbre à cames peut être commandé comme décrit précédemment.A cam similar to the cam 54 manages the triggering of the ring. Flip-flop 120 is held in abutment on the cam, the hollow and protruding parts of which impart a forward and backward movement to the pawl 120a which, in its movements, can drive trigger ratchet 122 and trigger the ringing, in a similar manner to the conventional operation of this drive mechanism. The pivoting of the camshaft can be controlled as previously described.

Le déverrouillage de la source d'énergie peut être géré de manière classique, tel que décrit dans l'ouvrage précité. Dans ce cas, l'arbre à cames peut ne comporter qu'une seule came pour le déclenchement de la sonnerie. Le déverrouillage du barillet peut aussi être géré par une deuxième came bloquant et débloquant le rouage par l'intermédiaire d'une bascule, comme dans le mode de réalisation précédent.The unlocking of the energy source can be managed in a conventional manner, as described in the aforementioned work. In this case, the camshaft may have only one cam for triggering the ring. Unlocking the barrel can also be managed by a second cam blocking and unlocking the gear through a rocker, as in the previous embodiment.

Ainsi est proposé un nouveau mécanisme de sonnerie permettant de gérer les différentes étapes du déroulement de la sonnerie, particulièrement dans une grande sonnerie, c'est-à-dire dans une sonnerie permettant de sonner les heures au passage ou à la demande. Le mode de réalisation présenté ci-dessus n'est qu'une illustration non limitative de l'invention dont l'essentiel est d'utiliser un arbre à cames pour gérer les étapes de la sonnerie. L'homme du métier pourra facilement adapter divers éléments de liaison entre l'organe de commande et les entrées du différentiel sans sortir du cadre de l'invention. Il pourra également trouver d'autres solutions que celles proposées pour faire avancer l'arbre à cames. Ainsi, au lieu d'utiliser une roue de transmission pour faire passer l'arbre de sa première à sa deuxième configuration, on peut prévoir d'effectuer cet entraînement par l'intermédiaire d'un élément de transmission lié au râteau, à l'instar du doigt 94, entraînant l'arbre une fois que les râteaux sont tombés sur leur limaçon.Thus is proposed a new ringing mechanism for managing the various stages of the course of the ring, especially in a large ring, that is to say, in a ringing ring to ring the hours in passing or on demand. The embodiment presented above is only a non-limiting illustration of the invention whose essential is to use a camshaft to handle the steps of the ring. The skilled person can easily adapt various connecting elements between the control member and the differential inputs without departing from the scope of the invention. He may also find other solutions than those proposed to advance the camshaft. Thus, instead of using a transmission wheel to move the shaft from its first to its second configuration, it can be provided to carry out this drive via a transmission element connected to the rake, to the 94, dragging the tree once the rakes have fallen on their snail.

Claims (8)

  1. Striking mechanism having an energy source (10) to drive racks (18) and a train (12) connecting the energy source (10) to a regulator organ (14), the racks (18) being kinematically connected to the energy source (10) via a striking driving device (20, 124) arranged in the train (12) and actuated by a control organ, said racks (18) being designed to cooperate with snails to acquire information on the current time, the control organ being a cam shaft (50) equipped with:
    - at least one cam cooperating with the driving device by means of at least one connecting element, and
    - a first drive wheel (56) arranged to pivot the cam shaft during triggering upon passage of the striking,
    characterized in that the cam shaft (50) is also equipped with a second drive wheel (90) arranged to pivot the cam shaft (50) upon manual triggering of the striking.
  2. Striking mechanism according to claim 1, characterized in that the driving device is a device comprising a detente ratchet, a driving plate bearing a click, and in that said connecting organ is arranged to act on the detente ratchet during triggering of the striking.
  3. Striking mechanism according to claim 1, characterized in that the driving device is a differential and in that said connecting organ is arranged to act on an input of the differential upon triggering of the striking.
  4. Striking mechanism according to one of the preceding claims, characterized in that the first drive wheel (56) and the second drive wheel (90) are arranged so as to allow said camshaft to advance by one pitch during passage striking triggering or manually so as to allow the ratchets to fall on their respective snails.
  5. Striking mechanism according to one of the preceding claims, characterized in that camshaft comprises a second cam to actuate the locking and unlocking of the energy source, the two cams being indexed relative to one another.
  6. Striking mechanism according to the preceding claim, characterized in that the first drive wheel (56) and the second drive wheel (90) are arranged so as to allow said camshaft to advance by one pitch during striking triggering so as to allow the ratchets to fall on their respective snails,
    by one pitch, after the ratchets have fallen on their snails, to go to a second step of the progression of the striking during which the ratchets are driven by the energy source, and
    by one pitch, after the striking has taken place, to go to a third step in which the ratchets and the power source are blocked.
  7. Striking mechanism according to one of the preceding claims, characterized in that it comprises a silencing device (100) provided with a bolt (108) capable of going between a first position and a second position, in which it cooperates with the second drive wheel (90) to block the control organ (50).
  8. Mechanism according to one of the preceding claims, characterized in that it comprises adjustable triggering means to cooperate with the drive wheel and trigger striking at a selected time.
EP20060124477 2006-11-21 2006-11-21 Chiming mechanism Not-in-force EP1925997B1 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106030421A (en) * 2014-02-19 2016-10-12 萧邦科技公司 Striking mechanism for timepiece
RU2690035C1 (en) * 2017-07-25 2019-05-30 Бланпэн Са Mechanism of switching combat modes for wrist watches and other watches
RU2767294C2 (en) * 2017-07-25 2022-03-17 Бланпэн Са Striking mode and melody selector for wristwatches or other types of watches

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EP2226688B1 (en) * 2009-03-05 2011-09-07 Vaucher Manufacture Fleurier S.A. Timepiece
EP2363761B1 (en) 2010-03-05 2016-05-18 Montres Breguet SA Torque measurement device for stopping a chime
EP2498146B1 (en) * 2011-03-08 2018-07-18 Montres Breguet SA Grande sonnerie wake-up alarm mechanism
CH704626A2 (en) 2011-03-08 2012-09-14 Montres Breguet Sa Striking block for alarm clock strike driving mechanism of e.g. instantaneous triggering type grand strike mechanism of wristwatch, has wheel and detent ratchet that co-operate with hook to authorize transfer of energy to sound mechanism
EP2498143B1 (en) 2011-03-08 2018-05-02 Montres Breguet SA Isolation mechanism between timepiece mechanisms for setting off different acoustic signals
EP2503405B1 (en) * 2011-03-22 2014-07-30 Montres Breguet SA Timepiece comprising a striking mechanism and a mechanism for selectively stopping said striking mechanism.
EP2615503B1 (en) * 2012-01-13 2014-09-24 Agenhor SA Barrel control mechanism for timepiece movement
JP6485779B2 (en) * 2014-02-19 2019-03-20 ショパール テクノロジーズ エスエー Timekeeping mechanism for timers
CH714362A2 (en) 2017-11-23 2019-05-31 Blancpain Sa Watch with striking mechanism with regulator and security of time setting.
EP3825781B1 (en) * 2019-11-20 2022-05-25 Chopard Technologies SA Striking mechanism for timepiece

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CH689337A5 (en) 1996-09-03 1999-02-26 Patek Philippe Sa Clock which reproduces Westminster Abbey chimes

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106030421A (en) * 2014-02-19 2016-10-12 萧邦科技公司 Striking mechanism for timepiece
CN106030421B (en) * 2014-02-19 2018-11-20 萧邦科技公司 Acoustic means for timepiece
RU2690035C1 (en) * 2017-07-25 2019-05-30 Бланпэн Са Mechanism of switching combat modes for wrist watches and other watches
RU2767294C2 (en) * 2017-07-25 2022-03-17 Бланпэн Са Striking mode and melody selector for wristwatches or other types of watches

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