EP1798610B1 - Timepiece including a single-pawl striking mechanism - Google Patents

Timepiece including a single-pawl striking mechanism Download PDF

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Publication number
EP1798610B1
EP1798610B1 EP05112169A EP05112169A EP1798610B1 EP 1798610 B1 EP1798610 B1 EP 1798610B1 EP 05112169 A EP05112169 A EP 05112169A EP 05112169 A EP05112169 A EP 05112169A EP 1798610 B1 EP1798610 B1 EP 1798610B1
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EP
European Patent Office
Prior art keywords
lever
release lever
timepiece
trigger
release
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP05112169A
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German (de)
French (fr)
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EP1798610A1 (en
Inventor
Eric Goeller
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.)
Montres Breguet SA
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Montres Breguet SA
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Publication date
Application filed by Montres Breguet SA filed Critical Montres Breguet SA
Priority to DE602005010600T priority Critical patent/DE602005010600D1/en
Priority to AT05112169T priority patent/ATE412206T1/en
Priority to EP05112169A priority patent/EP1798610B1/en
Priority to JP2006333907A priority patent/JP4939194B2/en
Priority to SG200608693-8A priority patent/SG133529A1/en
Priority to CN200610167076A priority patent/CN100576110C/en
Priority to US11/610,581 priority patent/US7330403B2/en
Publication of EP1798610A1 publication Critical patent/EP1798610A1/en
Priority to HK07109529.4A priority patent/HK1101832A1/en
Application granted granted Critical
Publication of EP1798610B1 publication Critical patent/EP1798610B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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 invention relates to a timepiece comprising a striking mechanism.
  • the invention more particularly relates to a timepiece comprising a watch movement and a recurring ringing mechanism, the ringing being triggered either automatically by the watch movement, or manually by a manually operated member, in which the striking mechanism comprises a trigger rocker with a pawl which is pivotally mounted on the trigger rocker and which is adapted to engage the teeth of a ratchet wheel so that, when triggered automatically, a driven triggering cam by the watchmaking gear of the watch movement causes the trigger rocker to pivot towards the trigger wheel and the pawl causes the detent wheel to rotate.
  • the striking mechanism comprises a trigger rocker with a pawl which is pivotally mounted on the trigger rocker and which is adapted to engage the teeth of a ratchet wheel so that, when triggered automatically, a driven triggering cam by the watchmaking gear of the watch movement causes the trigger rocker to pivot towards the trigger wheel and the pawl causes the detent wheel to rotate.
  • the big-bell watch features an automatic trigger mode and a manual bell mode.
  • the timer train rotates a four-star star-shaped trigger cam which is adapted to cooperate with the trigger latch so as to arm and release it successively, at a predetermined time. , which triggers the ringing through the pawl.
  • an additional ratchet which engages with the trigger wheel, when actuated by a manually operated member, so as to trigger the ringing.
  • the present invention aims to simplify the striking mechanism by removing the ratchet for manual control.
  • the present invention aims to provide an alternative solution to that mentioned above and a solution that is particularly reliable in all operating conditions.
  • the invention proposes a timepiece of the type described above, characterized in that the trigger rocker is equipped with a toggle that carries the pawl, in that the toggle joint is pivotally connected to the rocker. triggering during an automatic trigger, and in that the manual triggering is caused by the pivoting of the toggle relative to the trigger rocker under the action of the manually operated member.
  • the triggering of the ring can be manually controlled using the ratchet for automatic triggering, which reduces the number of parts used in the striking mechanism and which reduces the clutter the striking mechanism.
  • the pivot axis of the toggle joint is arranged at a free end of the trigger rocker, on the opposite side to the pivot axis of the trigger rocker.
  • the toggle lever extends the trigger flip-flop on the opposite side to the pivot axis of the trigger flip-flop.
  • the trip lever with the toggle joint can be made in a general form similar to that of a conventional rigid trigger rocker, and the kinematics of the bell mechanism in automatic trigger mode can be identical to the kinematics of a rocker conventional rigid trigger.
  • the pawl comprises a detent finger whose free end is intended to engage the teeth of the detent wheel and an actuating arm which cooperates with the manually operated member so that the organ manually operated causes the pivoting of the toggle lever to the detent wheel bearing against the actuating arm.
  • the toggle has a stop which is against an associated axial surface arranged in the trigger rocker to link the toggle pivoting with the trigger rocker.
  • This type of connection between the toggle and the tripping lever is particularly simple to achieve.
  • the striking mechanism comprises an arming cam which cooperates with an associated range of the trigger rocker to control the arming of the tripping lever against a spring, in that the trigger rocker is held in its armed position by a locking device, and the trip cam triggers the ringing by unlocking the locking device.
  • the arming cam is in the form of a rotating spiral of increasing radius comprising a step between the portion of smaller radius and the portion of larger radius. In armed position, the range of the tripping lever is in abutment against the larger radius portion of the cocking cam and the locking device blocks the cocking cam in rotation.
  • This embodiment has the advantage of minimizing the energy taken from the clockwork of the watch movement.
  • the arming force of the trigger rocker is produced by the rotation of the arming cam.
  • the trigger rocker is pre-armed before the ringing occurs so that it is sufficient for the triggering cam to act on the locking device to enable the triggering of the ring.
  • the timepiece 10 is preferably constituted by a watch which comprises a mechanical clockwork movement 12 allowing the watch 10 to display the current time, for example by means of hands, and which comprises a striking mechanism 14 to repetition making it possible to indicate at least the current time by hammers struck on stamps (not shown).
  • the watch 10 comprises a housing (not shown) containing at least one plate (not shown) on which the watch movement 12 and the striking mechanism 14 are mounted.
  • the repeating mechanism 14 of the watch 10 is of the big ring type, that is to say that it is capable of ringing the hours and the quarters, either by automatic triggering A, or by triggering on demand under the effect of a manual intervention M.
  • the automatic trigger A is obtained by means of a trigger cam 16 which is rotated by the timer train 18 the watch movement 12 and which mechanically actuates a trigger member 20 so as to release the ring gear 21 fitted to the striking mechanism 14.
  • the triggering on demand is obtained by means of a member 22 with manual control M which actuates mechanically the trigger member 20.
  • FIGS. 2 to 4 represent the ringing mechanism 14 in an initial state just before the ringing.
  • the striking mechanism 14 comprises a trigger rocker 24 provided with a pawl 26 which is pivotally mounted about an axis A1 on the trigger rocker 24 and which is provided with a trigger finger 25 whose free end is provided to engage the teeth 27 of a ratchet wheel 28.
  • the tripping lever 24 here comprises a generally rectilinear main body 30 which is pivotally mounted at one of its ends around an axis A2 of tilting and which carries, at its free end 32, the opposite side to the A2 tilting axis, the pawl 26.
  • the tilting of the trigger rocker 24 is intended to be controlled automatically by the rotation of the trip cam 16.
  • the trip cam 16 here has the shape of a four-armed star 33 which can automatically trigger a ring every quarter of an hour.
  • the trip cam 16 is square-mounted on the shaft (not shown) carrying the center wheel of the clock train 18, so as to perform a complete revolution per hour.
  • the striking mechanism 14 comprises an arming cam 34 which cooperates with an associated bearing surface 36 of the trigger rocker 24 to control the setting of the trigger rocker 24 against a return spring 38.
  • the return spring 38 resiliently urges the trigger rocker 24 towards the trigger wheel 28, that is to say in the direction of engagement of the pawl 26 with the trigger wheel 28.
  • the span 36 of the triggering latch 24 is arranged at the free end of a cocking arm 40 which extends generally transversely from the main body 30 of the tripping lever 24.
  • the trigger rocker 24 is retained in its armed position by a locking device 42, and the triggering cam 16 triggers the ringing by unlocking the locking device 42.
  • the cocking cam 34 is rotatably mounted about a cocking axis A3 and has the shape of a spiral of increasing radius when it rotates in the direction D of the triggering of the bell, it is ie clockwise considering the figure 4 .
  • the outer peripheral edge 44 of the cocking cam 34 thus constitutes a control surface which cooperates by contact with the bearing surface 36 of the trigger rocker 24 so as to push the tripping lever 24 against the return force. of the spring 38, when the camming cam 34 rotates in the direction D of the trigger.
  • the outer peripheral edge 44 of the cocking cam 34 comprises a step 46, between its portion of smaller radius and its portion of larger radius, allowing to let down the trigger rocker 24 when triggering. In the armed position, the range 36 of the trigger rocker 24 is in abutment against the larger radius portion of the cocking cam 34 and the locking device 42 blocks the cocking cam 34 in rotation.
  • the cocking cam 34 is here integral in rotation with a plate 48 provided to be rotated around the cocking axis A3 by the ring gear 21, when the bell is triggered.
  • the plate 48 is equipped a retractable attachment device 50 which, in the hooked position, links the plate 48 in rotation with a deflection wheel 52 designed to be rotated by the ring gear 21 when the buzzer is triggered.
  • the attachment device 50 is constituted here by a lever 54 which is pivotally mounted about an axis A4 on the plate 48.
  • the lever 54 comprises, on the one hand, a drive hook 56 which is provided for s' hanging on a ratchet wheel 58, arranged under the deflection wheel 52, integral in rotation with the return wheel 52 and, secondly, a locking arm 60 which is provided to cooperate with a locking hook 62 belonging to the locking device 42 for retaining the cocking cam 34 in rotation and for controlling the drive hook 56 in the retracted position.
  • the driving hook 56 is biased towards its hooked position by a hooking spring 64 in the form of an elastic arm which is fixed on the plate 48.
  • the locking hook 62 is pivotally mounted about an axis A5. It comprises a control arm 63 which extends on the opposite side to the attachment portion relative to the axis A5. The locking hook 62 is pivotally biased towards its locked position, in which it holds the locking arm 60 by a return spring (not shown).
  • the plate 48 is urged in rotation in the direction of release by a plate spring 66, so as to initiate the rotational movement of the camming cam 34 when the ringing is triggered, as will be seen later .
  • the plate spring 66 is constituted by an elastic arm which comprises a fixed end 68 and a free end 70 provided with a free rotating roller 72 which bears in a notch 74 provided for this purpose in the outer peripheral edge 76
  • the outer peripheral edge 76 of the plate 48 has the shape of a spiral, of increasing radius in the direction D of the trigger, defining the notch 74 for the support of the plate spring 66.
  • the outer peripheral edge 76 forms a rolling track for the roller 72.
  • the roller 72 may be made of synthetic ruby to minimize friction with the outer peripheral edge 76.
  • the locking device 42 comprises a step rocker 78 which is armed, against a return spring 80, by the triggering cam 16 and which causes the pivoting of the locking hook 62 to its unlocked position when the trip cam 16 releases the step rocker 78.
  • the recess rocker 78 has a bearing surface 81 which is arranged opposite a pin 83 arranged on the control arm 63 of FIG. locking hook 62 so that, when the step rocker 78 is released by the trigger cam 16, the bearing surface 81 comes to press against the pin 83 to cause the pivoting of the locking hook 62 to its unlocked position.
  • the return wheel 52 is rotatably connected to the ring gear 21 by means of two intermediate wheels 82, 84 of return which are coaxial and which are superimposed axially.
  • the lower intermediate wheel 82 meshes with the return wheel 52 and the upper intermediate wheel 84 meshes with a drive wheel 86 belonging to the ring gear 21.
  • the drive wheel 86 is here coaxial with the expansion wheel 28.
  • the manually operated member 22 cooperates with the locking device 42 in order to trigger the ring manually.
  • the organ 22 with manual control comprises an actuating lever 88, here crescent-shaped, which extends on one side of its pivot axis A5.
  • the actuating lever 88 is extended, on the other side of the pivot axis A5, by an unlocking finger 90, visible on the figure 3 , which passes under the recess rocker 78 and which is intended to cooperate with a pad 92 arranged on a face of the locking hook 62, to control the hook 62 in the unlocked position.
  • the manually operated member 22 is for example actuated by a pushbutton (not shown) accessible from outside the watch case 10.
  • the actuating lever 88 pivots in the counterclockwise direction considering the figure 3 , clockwise considering the figure 4 , so that the unlocking finger 90 comes to press against the stud 92 and causes the pivoting of the unlocking hook 62 to its unlocked position, against its spring.
  • the figure 4 represents the striking mechanism 14 in its initial state, just before the automatic triggering.
  • one of the arms 33 of the triggering cam 16 is still in contact, by its free end, with the step rocker 78 which is armed against its spring 80 return.
  • the tripping lever 24 is also armed against its return spring 38, its bearing surface 36 being in abutment against the larger radius portion of the camming cam 34. of arming 34 is locked in rotation with the plate 48 by means of the locking hook 62 which holds the locking arm 60.
  • the locking arm 60 is held in abutment against the locking hook 62 by the plate spring 66 which biases the plate 48 in the direction D of the trigger.
  • the locking hook 62 controls the drive hook 56 in the retracted position, against the engaging spring 64, so that the ratchet wheel 58 is free to rotate relative to the tray 48.
  • the figure 5 represents the striking mechanism 14 in a first intermediate state, just after the automatic triggering.
  • the trip cam 16 has continued to rotate clockwise, a few degrees from the initial state, thereby releasing the rocking lever 78.
  • the release of the rocker recess 78 causes its return to a stable equilibrium position, under the action of its spring 80 return. Before reaching its stable equilibrium position, the step rocker 78 exceeds this stable equilibrium position so that it actuates the locking hook 62 in the direction of unlocking, by pressing on the pin 83, which releases the locking lever 60. The locking hook 62 then returns to its locking position under the action of its return spring.
  • the release of the locking lever 60 immediately causes the pivoting of the plate 48 in the direction D of the trigger, under the action of the plate spring 66.
  • the arming cam 34 rotating with the plate 48, the step 46 shifts angularly in the direction D of the trigger, allowing the range 36 of the tripping lever 24 to fall on the smaller radius portion of the camming cam 34, as shown in FIG. figure 5 .
  • the trigger rocker 24 pivots towards the trigger wheel 28 so that the pawl 26 engages the teeth of the detent wheel 28 to cause its rotation.
  • the rotation of the detent wheel 28 then releases the ring gear 21 which, conventionally, will take hours, minutes and quarters information on corresponding snails and actuate the hammers on the stamps adequately.
  • the expansion wheel 28 By rotating about its axis, the expansion wheel 28 causes the rotation of the drive wheel 86 which transmits this rotational movement to the return wheel 52 via the intermediate wheels 82, 84 of return.
  • the release of the locking lever 60 causes the lever 54 to pivot about its axis A4, under the action of the coupling spring 64, so that the driving hook 56 engages the teeth of the ratchet wheel 58.
  • the plate 48 and the arming cam 34 are thus connected in rotation with the ratchet wheel 58 and the deflection wheel 52.
  • the rotation of the idler wheel 52 causes therefore the rotation of the cocking cam 34 which cooperates with the range 36 to arm the trigger rocker 24 for a next ringing trip.
  • the figure 6 represents the striking mechanism 14 in a second intermediate state after the trip.
  • this intermediate state the trigger rocker 24 is being armed, the arming cam 34 having not yet completed a complete revolution.
  • the arming cam 34 continues to rotate in the direction D of the trip until the locking lever 60 is stopped by the locking hook 62, which occurs on the figure 7 , where the striking mechanism 14 is shown in a final state.
  • the locking lever 60 then again occupies its initial angular position, with respect to the cocking axis A3, which corresponds to the armed state of the trigger rocker 24.
  • the trigger rocker 24 is then ready for use. new trigger.
  • the locking hook 62 By stopping the locking lever 60, the locking hook 62 causes the lever 54 to pivot about its axis A4, here in the counter-clockwise direction, so that the driving hook 56 is disengaged from the ratchet wheel 58 This makes it possible to separate the plate 48 from the idler wheel 52, to allow the idler wheel 52 to continue to rotate freely with the ring gear 21.
  • Manual trigger operation is similar to the previous one. Indeed, the actuation of the member 22 to manual control causes the unlocking hook unlocking 62, which releases the locking lever 60 and allows the triggering of the ring.
  • the force taken from the watch movement 12 during an automatic release is minimal since the trip cam 16 only has to overcome the return force of the spring 80 of the Flip-flop 78.
  • the force necessary to arm the trigger rocker 24 is here taken from the ring gear 21, since it is the rotation of the drive wheel 86 that allows the cam arming 34 to perform a complete turn.
  • the recess rocker 78 could be suppressed.
  • the trip cam 16 would then directly control the pivoting of the locking hook 62.
  • the use of the recess rocker 76 has the advantage of compensating for certain dispersions in the positioning of the rotating parts relative to each other, in particular as regards the centering of the trigger cam 16 and the locking hook 62 on their respective axes.
  • timepiece benefits from an almost instantaneous triggering of the ring since the trigger rocker is pre-armed.
  • the striking mechanism 14 comprises a silence mechanism 94, which is represented on the figure 7 , and which neutralizes the automatic triggering of the ring.
  • This silence mechanism 94 comprises a silence lever 96 pivoting about an axis A7 between a neutral angular position and an angular locking position, which is shown in dashed line on the figure 7 .
  • the silence lever 96 comprises, on either side of its pivot axis A7, a locking pin 98 and an actuating finger 100. It can be actuated by a pushbutton (not shown) accessible from the outside of the watch case 10 and acting on the actuating finger 100.
  • the locking pin 98 abuts against a corresponding surface 102 of the rocker recess 78 so as to limit the deflection. Specifically, the locking pin 98 prevents pivoting of the step rocker 78 beyond its equilibrium position, when released by the trigger cam 16, which prevents the rocker recess 78 from coming to press against the pin 83 to unlock the locking hook 62.
  • This silence mechanism 94 can be operated at any time, including during or just before the ringing. Indeed, as the silence mechanism 94 merely limit the stroke of the rocker recess 78, without locking it in pivoting, it continues to be armed with the passage of each arm 33 of the trip cam 16 without its general operation is altered by the transition to silent mode.
  • the tripping lever 24 is equipped with a toggle joint 104 which carries the pawl 26.
  • the toggle joint 104 here has the shape of a rod which is pivotally mounted on an upper transverse face 106 of the trigger rocker 24 around an auxiliary pivot axis A8.
  • the auxiliary axis A8 is arranged at the free end 32 of the trigger rocker 24.
  • the toggle joint 104 extends rectilinearly in the extension of the main body 30 of the tripping lever 24, on the opposite side to the axis pivoting A2 of the trigger rocker 24.
  • the pawl 26 is pivotally mounted about its axis A1 at the free end 108 of the toggle joint 104, on the opposite side to the auxiliary axis A8.
  • the toggle joint 104 For its pivotal connection with the tripping lever 24, the toggle joint 104 has, on its lower face 110, facing the upper transverse face 106 of the tripping lever 24, a stop 112 which bears against an associated axial surface 114 formed in the free end 32 of the trigger rocker 24, as shown in FIG. figure 11 .
  • a spring (not shown) which urges the toggle joint 104 to pivot about the auxiliary axis A8 in the direction of the abutment 112 against the trigger rocker 24, that is, say clockwise considering the figure 8 .
  • the pawl 26 comprises, on the opposite side to the trigger finger 25 relative to the axis A1, an actuating arm 116 which is intended to be actuated by the organ 22 manually controlled.
  • the striking mechanism 14 is shown in an initial state, before triggering.
  • the actuating lever 88 of the manually operated member 22 bears against the free end of the actuating arm 116, which causes the toggle 104 to pivot, which pivots about its auxiliary axis A8, relative to the trigger flip-flop 24, to allow the pawl 26 to drive the detent wheel 28 in rotation.
  • the trigger latch 24 then remains in its initial armed position.
  • the trigger rocker 24 pivots about its axis A2 towards the trigger wheel 28 with the toggle joint 104.
  • the toggle joint 104 is pivotally engaged with the trigger rocker 24 so that the pawl 26 engages the detent wheel 28 as before.
  • this embodiment can be implemented in any striking mechanism 14, including a striking mechanism as described in the prior art mentioned above.
  • the advantage is that it allows the use of a single pawl 26 for automatic triggering and for manual triggering, whereas previously the striking mechanisms had to be equipped with a first pawl controlled by the trigger rocker for tripping. automatic and a second pawl controlled by the manually operated device for manual triggering.

Abstract

The timepiece has a repeating striking mechanism (14) comprising a triggering lever (24) equipped with a toggle joint (104) which supports a ratchet (26). The toggle joint is pivotably connected with the lever during an automatic triggering. The toggle joint is pivoted with respect to the lever under the action of a manual control unit (22) in order to provoke manual triggering. The joint presents a pivoting axle (A8) arranged at a free end (32) of the lever, opposite to pivoting axle (A2) of the lever.

Description

L'invention concerne une pièce d'horlogerie comportant un mécanisme de sonnerie.The invention relates to a timepiece comprising a striking mechanism.

L'invention concerne plus particulièrement une pièce d'horlogerie comportant un mouvement horloger et un mécanisme de sonnerie à répétition, la sonnerie étant déclenchée soit automatiquement par le mouvement horloger, soit manuellement par un organe à commande manuelle, dans lequel le mécanisme de sonnerie comporte une bascule de déclenchement munie d'un cliquet qui est monté pivotant sur la bascule de déclenchement et qui est prévu pour venir en prise avec les dents d'une roue de détente à rochet de sorte que, en déclenchement automatique, une came de déclenchement entraînée par le rouage de minuterie du mouvement horloger provoque le pivotement de la bascule de déclenchement vers la roue de détente et le cliquet entraîne la roue de détente en rotation.The invention more particularly relates to a timepiece comprising a watch movement and a recurring ringing mechanism, the ringing being triggered either automatically by the watch movement, or manually by a manually operated member, in which the striking mechanism comprises a trigger rocker with a pawl which is pivotally mounted on the trigger rocker and which is adapted to engage the teeth of a ratchet wheel so that, when triggered automatically, a driven triggering cam by the watchmaking gear of the watch movement causes the trigger rocker to pivot towards the trigger wheel and the pawl causes the detent wheel to rotate.

De telles pièces d'horlogerie sont connues depuis longtemps, en particulier dans le domaine des montres dites compliquées telles que les montres à répétition ou les montres à grande sonnerie. Pour une bonne compréhension de l'état de la technique dans le domaine des montres compliquées, on pourra se reporter à l'ouvrage de François Lecoultre intitulé "Les montres compliquées" (ISBN 2-88175-000-1), qui comporte notamment plusieurs chapitres relatifs aux montres équipées d'un mécanisme de sonnerie (pages 97 à 205).Such timepieces have been known for a long time, particularly in the field of so-called complicated watches such as repeating watches or big-bell watches. For a good understanding of the state of the art in the field of complicated watches, reference can be made to François Lecoultre's "Complicated Watches" (ISBN 2-88175-000-1). chapters relating to watches equipped with a striking mechanism (pages 97 to 205).

Parmi les montres à sonnerie, la montre à grande sonnerie comporte un mode de déclenchement automatique et un mode de déclenchement manuel de la sonnerie. Pour le déclenchement manuel, le rouage de minuterie entraîne en rotation une came de déclenchement en forme d'étoile à quatre bras qui est prévue pour coopérer avec la bascule de déclenchement de manière à l'armer et à la relâcher successivement, à un instant déterminé, ce qui provoque le déclenchement de la sonnerie par l'intermédiaire du cliquet. Pour le déclenchement manuel, il est prévu un cliquet supplémentaire qui vient en prise avec la roue de détente, lorsqu'il est actionné par un organe à commande manuelle, de manière à déclencher la sonnerie.Among ring watches, the big-bell watch features an automatic trigger mode and a manual bell mode. For manual triggering, the timer train rotates a four-star star-shaped trigger cam which is adapted to cooperate with the trigger latch so as to arm and release it successively, at a predetermined time. , which triggers the ringing through the pawl. For manual release, there is provided an additional ratchet which engages with the trigger wheel, when actuated by a manually operated member, so as to trigger the ringing.

La présente invention vise notamment à simplifier le mécanisme de sonnerie en supprimant le cliquet servant à la commande manuelle.The present invention aims to simplify the striking mechanism by removing the ratchet for manual control.

Un autre mécanisme de déclenchement est décrit et représenté dans le document CH 16 593 . Selon ce document, l'organe à commande manuelle est susceptible d'agir directement sur la bascule de déclenchement portant le cliquet de déclenchement automatique en vue de réaliser le déclenchement manuel. Le même cliquet sert donc aux deux types de déclenchement.Another triggering mechanism is described and shown in the document CH 16,593 . According to this document, the manually operated organ is which can act directly on the trigger rocker carrying the automatic trigger pawl for manual triggering. The same ratchet therefore serves both types of tripping.

La présente invention vise à proposer une solution alternative à celle mentionnée ci-dessus et une solution qui soit particulièrement fiable dans toutes les conditions de fonctionnement.The present invention aims to provide an alternative solution to that mentioned above and a solution that is particularly reliable in all operating conditions.

Dans ce but, l'invention propose une pièce d'horlogerie du type décrit précédemment, caractérisée en ce que la bascule de déclenchement est équipée d'une genouillère qui porte le cliquet, en ce que la genouillère est liée en pivotement avec la bascule de déclenchement lors d'un déclenchement automatique, et en ce que le déclenchement manuel est provoqué par le pivotement de la genouillère par rapport à la bascule de déclenchement sous l'action de l'organe à commande manuelle.For this purpose, the invention proposes a timepiece of the type described above, characterized in that the trigger rocker is equipped with a toggle that carries the pawl, in that the toggle joint is pivotally connected to the rocker. triggering during an automatic trigger, and in that the manual triggering is caused by the pivoting of the toggle relative to the trigger rocker under the action of the manually operated member.

Grâce à la pièce d'horlogerie selon l'invention, le déclenchement de la sonnerie peut être commandé manuellement en utilisant le cliquet servant au déclenchement automatique, ce qui diminue le nombre de pièces utilisées dans le mécanisme de sonnerie et ce qui diminue l'encombrement du mécanisme de sonnerie.Thanks to the timepiece according to the invention, the triggering of the ring can be manually controlled using the ratchet for automatic triggering, which reduces the number of parts used in the striking mechanism and which reduces the clutter the striking mechanism.

Selon une autre caractéristique de l'invention, l'axe de pivotement de la genouillère est agencé à une extrémité libre de la bascule de déclenchement, du côté opposé à l'axe de pivotement de la bascule de déclenchement. La genouillère prolonge la bascule de déclenchement du côté opposé à l'axe de pivotement de la bascule de déclenchement. Ainsi, la bascule de déclenchement avec la genouillère peut être réalisée selon une forme générale similaire à celle d'une bascule de déclenchement rigide conventionnelle, et la cinématique du mécanisme de sonnerie en mode de déclenchement automatique peut être identique à la cinématique d'une bascule de déclenchement rigide conventionnelle.According to another characteristic of the invention, the pivot axis of the toggle joint is arranged at a free end of the trigger rocker, on the opposite side to the pivot axis of the trigger rocker. The toggle lever extends the trigger flip-flop on the opposite side to the pivot axis of the trigger flip-flop. Thus, the trip lever with the toggle joint can be made in a general form similar to that of a conventional rigid trigger rocker, and the kinematics of the bell mechanism in automatic trigger mode can be identical to the kinematics of a rocker conventional rigid trigger.

De préférence, le cliquet comporte un doigt de détente dont l'extrémité libre est prévue pour venir en prise avec les dents de la roue de détente et un bras d'actionnement qui coopère avec l'organe à commande manuelle de sorte que l'organe à commande manuelle provoque le pivotement de la genouillère vers la roue de détente en venant en appui contre le bras d'actionnement. On obtient ainsi un mécanisme de commande manuelle particulièrement simple.Preferably, the pawl comprises a detent finger whose free end is intended to engage the teeth of the detent wheel and an actuating arm which cooperates with the manually operated member so that the organ manually operated causes the pivoting of the toggle lever to the detent wheel bearing against the actuating arm. This gives a particularly simple manual control mechanism.

Avantageusement, la genouillère comporte une butée qui est appui contre une surface axiale associée aménagée dans la bascule de déclenchement en vue de lier la genouillère en pivotement avec la bascule de déclenchement. Ce type de liaison entre la genouillère et la bascule de déclenchement est particulièrement simple à réaliser.Advantageously, the toggle has a stop which is against an associated axial surface arranged in the trigger rocker to link the toggle pivoting with the trigger rocker. This type of connection between the toggle and the tripping lever is particularly simple to achieve.

Selon un mode de réalisation avantageux, le mécanisme de sonnerie comporte une came d'armement qui coopère avec une portée associée de la bascule de déclenchement pour commander l'armement de la bascule de déclenchement à l'encontre d'un ressort, en ce que la bascule de déclenchement est retenue dans sa position armée par un dispositif de verrouillage, et la came de déclenchement déclenche la sonnerie en déverrouillant le dispositif de verrouillage. La came d'armement a la forme d'un colimaçon rotatif de rayon croissant comportant une marche entre la portion de plus petit rayon et la portion de plus grand rayon. En position armée, la portée de la bascule de déclenchement est en appui contre la portion de plus grand rayon de la came d'armement et le dispositif de verrouillage bloque la came d'armement en rotation. Ce mode de réalisation présente l'avantage de minimiser l'énergie prélevée sur le rouage de minuterie du mouvement horloger. La force d'armement de la bascule de déclenchement est produite par la rotation de la came d'armement. La bascule de déclenchement est pré-armée avant le déclenchement de la sonnerie de sorte qu'il suffit à la came de déclenchement d'agir sur le dispositif de verrouillage pour permettre le déclenchement de la sonnerie.According to an advantageous embodiment, the striking mechanism comprises an arming cam which cooperates with an associated range of the trigger rocker to control the arming of the tripping lever against a spring, in that the trigger rocker is held in its armed position by a locking device, and the trip cam triggers the ringing by unlocking the locking device. The arming cam is in the form of a rotating spiral of increasing radius comprising a step between the portion of smaller radius and the portion of larger radius. In armed position, the range of the tripping lever is in abutment against the larger radius portion of the cocking cam and the locking device blocks the cocking cam in rotation. This embodiment has the advantage of minimizing the energy taken from the clockwork of the watch movement. The arming force of the trigger rocker is produced by the rotation of the arming cam. The trigger rocker is pre-armed before the ringing occurs so that it is sufficient for the triggering cam to act on the locking device to enable the triggering of the ring.

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

  • la figure 1 est un schéma qui représente les principaux éléments de la pièce d'horlogerie à répétition selon l'invention;
  • la figure 2 est une vue en perspective qui représente schématiquement les principaux éléments du mécanisme de sonnerie de la pièce d'horlogerie de la figure 1 dans un état initial juste avant le déclenchement;
  • la figure 3 est une vue de dessous qui représente schématiquement le mécanisme de sonnerie de la figure 2 dans son état initial juste avant le déclenchement;
  • la figure 4 est une vue de dessus qui représente schématiquement le mécanisme de sonnerie de la figure 2 dans son état initial juste avant le déclenchement;
  • les figures 5 et 6 sont des vues similaires à celle de la figure 4 qui représentent le mécanisme de sonnerie de la figure 2 dans deux états intermédiaires successifs après le déclenchement;
  • la figure 7 est une vue similaire à celle de la figure 4 qui représente le mécanisme de sonnerie de la figure 2 dans un état final après le déclenchement;
  • la figure 8 est une vue de dessus qui représente schématiquement une variante de réalisation du mécanisme de sonnerie selon l'invention dans laquelle le cliquet qui engrène avec la roue de détente est porté par une genouillère;
  • la figure 9 est une vue similaire à celle de la figure 8 qui représente la variante de réalisation lors d'un déclenchement automatique;
  • la figure 10 est une vue similaire à celle de la figure 8 qui représente la variante de réalisation lors d'un déclenchement manuel;
  • la figure 11 est une vue de détail en perspective qui représente le dessous de la genouillère et sa butée pour la liaison avec la bascule de déclenchement du mécanisme de sonnerie.
Other features and advantages of the present invention will appear more clearly on reading the detailed description which follows, made with reference to the accompanying drawings given by way of non-limiting example and in which:
  • the figure 1 is a diagram which represents the main elements of the timepiece of repetition according to the invention;
  • the figure 2 is a perspective view which schematically represents the main elements of the striking mechanism of the timepiece of the figure 1 in an initial state just before the trigger;
  • the figure 3 is a bottom view that schematically represents the striking mechanism of the figure 2 in its initial state just before the trigger;
  • the figure 4 is a top view that schematically represents the striking mechanism of the figure 2 in its initial state just before the trigger;
  • the Figures 5 and 6 are views similar to that of the figure 4 which represent the striking mechanism of the figure 2 in two successive intermediate states after the triggering;
  • the figure 7 is a view similar to that of the figure 4 which represents the striking mechanism of the figure 2 in a final state after the trip;
  • the figure 8 is a top view which shows schematically an alternative embodiment of the striking mechanism according to the invention wherein the pawl which meshes with the trigger wheel is carried by a toggle joint;
  • the figure 9 is a view similar to that of the figure 8 which represents the variant embodiment during an automatic triggering;
  • the figure 10 is a view similar to that of the figure 8 which represents the variant embodiment during manual triggering;
  • the figure 11 is a detailed perspective view which represents the underside of the toggle joint and its abutment for the connection with the flip-flop of the striking mechanism.

Sur la figure 1, on a représenté une pièce d'horlogerie 10 réalisée conformément aux enseignements de l'invention sous la forme d'un schéma-bloc. La pièce d'horlogerie 10 est constituée de préférence par une montre qui comporte un mouvement horloger 12 mécanique permettant à la montre 10 d'afficher l'heure courante, par exemple au moyen d'aiguilles, et qui comporte un mécanisme de sonnerie 14 à répétition permettant d'indiquer au moins l'heure courante à l'aide de coups frappés par des marteaux sur des timbres (non représentés).On the figure 1 a timepiece 10 made in accordance with the teachings of the invention is shown in the form of a block diagram. The timepiece 10 is preferably constituted by a watch which comprises a mechanical clockwork movement 12 allowing the watch 10 to display the current time, for example by means of hands, and which comprises a striking mechanism 14 to repetition making it possible to indicate at least the current time by hammers struck on stamps (not shown).

De manière connue, la montre 10 comporte un boîtier (non représenté) contenant au moins une platine (non représentée) sur laquelle sont montés le mouvement horloger 12 et le mécanisme de sonnerie 14.In known manner, the watch 10 comprises a housing (not shown) containing at least one plate (not shown) on which the watch movement 12 and the striking mechanism 14 are mounted.

Selon le mode de réalisation schématisé, le mécanisme de sonnerie 14 à répétition de la montre 10 selon l'invention est du type à grande sonnerie, c'est-à-dire qu'il est capable de sonner les heures et les quarts, soit par un déclenchement automatique A, soit par un déclenchement à la demande sous l'effet d'une intervention manuelle M. Le déclenchement automatique A est obtenu au moyen d'une came de déclenchement 16 qui est entraînée en rotation par le rouage de minuterie 18 du mouvement horloger 12 et qui actionne mécaniquement un organe de déclenchement 20 de manière à libérer le rouage de sonnerie 21 équipant le mécanisme de sonnerie 14. Le déclenchement à la demande est obtenu au moyen d'un organe 22 à commande manuelle M qui actionne mécaniquement l'organe de déclenchement 20.According to the schematized embodiment, the repeating mechanism 14 of the watch 10 according to the invention is of the big ring type, that is to say that it is capable of ringing the hours and the quarters, either by automatic triggering A, or by triggering on demand under the effect of a manual intervention M. The automatic trigger A is obtained by means of a trigger cam 16 which is rotated by the timer train 18 the watch movement 12 and which mechanically actuates a trigger member 20 so as to release the ring gear 21 fitted to the striking mechanism 14. The triggering on demand is obtained by means of a member 22 with manual control M which actuates mechanically the trigger member 20.

On décrit maintenant, en référence aux figures 2 et suivantes, les éléments du mécanisme de sonnerie 14 essentiels à la compréhension de l'invention. Les figures 2 à 4 représentent le mécanisme de sonnerie 14 dans un état initial juste avant le déclenchement de la sonnerie.We now describe, with reference to figures 2 and following, the elements of the striking mechanism 14 essential to the understanding of the invention. The Figures 2 to 4 represent the ringing mechanism 14 in an initial state just before the ringing.

Pour une description plus complète de la structure et du fonctionnement d'un mécanisme à grande sonnerie, on se reportera au chapitre consacré à ce type de mécanisme dans l'ouvrage de François Lecoultre intitulé "Les montres compliquées" (ISBN 2-88175-000-1), incorporé ici par référence.For a more complete description of the structure and operation of a big-bell mechanism, see the chapter devoted to this type of mechanism in François Lecoultre's book entitled "Complicated watches" (ISBN 2-88175-000). -1), incorporated herein by reference.

Le mécanisme de sonnerie 14 comporte une bascule de déclenchement 24 munie d'un cliquet 26 qui est monté pivotant autour d'un axe A1 sur la bascule de déclenchement 24 et qui est muni d'un doigt de détente 25 dont l'extrémité libre est prévue pour venir en prise avec les dents 27 d'une roue de détente 28 à rochet. La bascule de déclenchement 24 comporte ici un corps principal 30 globalement rectiligne qui est monté pivotant, à l'une de ses extrémités, autour d'un axe A2 de basculement et qui porte, à son extrémité libre 32, du côté opposé à l'axe A2 de basculement, le cliquet 26.The striking mechanism 14 comprises a trigger rocker 24 provided with a pawl 26 which is pivotally mounted about an axis A1 on the trigger rocker 24 and which is provided with a trigger finger 25 whose free end is provided to engage the teeth 27 of a ratchet wheel 28. The tripping lever 24 here comprises a generally rectilinear main body 30 which is pivotally mounted at one of its ends around an axis A2 of tilting and which carries, at its free end 32, the opposite side to the A2 tilting axis, the pawl 26.

Le basculement de la bascule de déclenchement 24 est prévu pour être commandé automatiquement par la rotation de la came de déclenchement 16. La came de déclenchement 16 a ici la forme d'une étoile à quatre bras 33 qui permettent de déclencher automatiquement une sonnerie tous les quarts d'heure. La came de déclenchement 16 est montée à carré sur l'arbre (non représenté) portant la roue de centre du rouage de minuterie 18, de manière à effectuer un tour complet par heure.The tilting of the trigger rocker 24 is intended to be controlled automatically by the rotation of the trip cam 16. The trip cam 16 here has the shape of a four-armed star 33 which can automatically trigger a ring every quarter of an hour. The trip cam 16 is square-mounted on the shaft (not shown) carrying the center wheel of the clock train 18, so as to perform a complete revolution per hour.

Conformément aux enseignements de l'invention, le mécanisme de sonnerie 14 comporte une came d'armement 34 qui coopère avec une portée 36 associée de la bascule de déclenchement 24 pour commander l'armement de la bascule de déclenchement 24 à l'encontre d'un ressort 38 de rappel. Le ressort 38 de rappel sollicite élastiquement la bascule de déclenchement 24 vers la roue de détente 28, c'est-à-dire dans le sens de l'engrènement du cliquet 26 avec la roue de détente 28.In accordance with the teachings of the invention, the striking mechanism 14 comprises an arming cam 34 which cooperates with an associated bearing surface 36 of the trigger rocker 24 to control the setting of the trigger rocker 24 against a return spring 38. The return spring 38 resiliently urges the trigger rocker 24 towards the trigger wheel 28, that is to say in the direction of engagement of the pawl 26 with the trigger wheel 28.

Selon le mode de réalisation représenté ici, la portée 36 de la bascule de déclenchement 24 est agencée à l'extrémité libre d'un bras d'armement 40 qui s'étend globalement transversalement depuis le corps principal 30 de la bascule de déclenchement 24.According to the embodiment shown here, the span 36 of the triggering latch 24 is arranged at the free end of a cocking arm 40 which extends generally transversely from the main body 30 of the tripping lever 24.

Selon d'autres caractéristiques de l'invention, la bascule de déclenchement 24 est retenue dans sa position armée par un dispositif de verrouillage 42, et la came de déclenchement 16 déclenche la sonnerie en déverrouillant le dispositif de verrouillage 42.According to other features of the invention, the trigger rocker 24 is retained in its armed position by a locking device 42, and the triggering cam 16 triggers the ringing by unlocking the locking device 42.

Avantageusement, la came d'armement 34 est montée à rotation autour d'un axe d'armement A3 et elle a la forme d'un colimaçon de rayon croissant lorsqu'il tourne dans le sens D du déclenchement de la sonnerie, c'est-à-dire dans le sens horaire en considérant la figure 4. Le bord périphérique externe 44 de la came d'armement 34 constitue ainsi une surface de commande qui coopère par contact avec la portée 36 de la bascule de déclenchement 24 de manière à repousser la bascule de déclenchement 24 à l'encontre de la force de rappel du ressort 38, lorsque la came d'armement 34 tourne dans le sens D du déclenchement. Le bord périphérique externe 44 de la came d'armement 34 comporte une marche 46, entre sa portion de plus petit rayon et sa portion de plus grand rayon, permettant de laisser retomber la bascule de déclenchement 24 lors du déclenchement. En position armée, la portée 36 de la bascule de déclenchement 24 est en appui contre la portion de plus grand rayon de la came d'armement 34 et le dispositif de verrouillage 42 bloque la came d'armement 34 en rotation.Advantageously, the cocking cam 34 is rotatably mounted about a cocking axis A3 and has the shape of a spiral of increasing radius when it rotates in the direction D of the triggering of the bell, it is ie clockwise considering the figure 4 . The outer peripheral edge 44 of the cocking cam 34 thus constitutes a control surface which cooperates by contact with the bearing surface 36 of the trigger rocker 24 so as to push the tripping lever 24 against the return force. of the spring 38, when the camming cam 34 rotates in the direction D of the trigger. The outer peripheral edge 44 of the cocking cam 34 comprises a step 46, between its portion of smaller radius and its portion of larger radius, allowing to let down the trigger rocker 24 when triggering. In the armed position, the range 36 of the trigger rocker 24 is in abutment against the larger radius portion of the cocking cam 34 and the locking device 42 blocks the cocking cam 34 in rotation.

La came d'armement 34 est ici solidaire en rotation avec un plateau 48 prévu pour être entraîné en rotation, autour de l'axe d'armement A3, par le rouage de sonnerie 21, lorsque la sonnerie est déclenchée. A cet effet, le plateau 48 est équipé d'un dispositif d'accrochage 50 escamotable qui, en position accrochée, lie en rotation le plateau 48 avec une roue de renvoi 52 prévue pour être entraînée en rotation par le rouage de sonnerie 21, lorsque la sonnerie est déclenchée.The cocking cam 34 is here integral in rotation with a plate 48 provided to be rotated around the cocking axis A3 by the ring gear 21, when the bell is triggered. For this purpose, the plate 48 is equipped a retractable attachment device 50 which, in the hooked position, links the plate 48 in rotation with a deflection wheel 52 designed to be rotated by the ring gear 21 when the buzzer is triggered.

Le dispositif d'accrochage 50 est constitué ici par un levier 54 qui est monté pivotant autour d'un axe A4 sur le plateau 48. Le levier 54 comporte, d'une part, un crochet d'entraînement 56 qui est prévu pour s'accrocher sur une roue à rochet 58, agencée sous la roue de renvoi 52, solidaire en rotation avec la roue de renvoi 52 et, d'autre part, un bras de blocage 60 qui est prévu pour coopérer avec un crochet de verrouillage 62 appartenant au dispositif de verrouillage 42 en vue de retenir la came d'armement 34 en rotation et en vue de commander le crochet d'entraînement 56 en position escamotée. Le crochet d'entraînement 56 est sollicité vers sa position accrochée par un ressort d'accrochage 64 en forme de bras élastique qui est fixé sur le plateau 48.The attachment device 50 is constituted here by a lever 54 which is pivotally mounted about an axis A4 on the plate 48. The lever 54 comprises, on the one hand, a drive hook 56 which is provided for s' hanging on a ratchet wheel 58, arranged under the deflection wheel 52, integral in rotation with the return wheel 52 and, secondly, a locking arm 60 which is provided to cooperate with a locking hook 62 belonging to the locking device 42 for retaining the cocking cam 34 in rotation and for controlling the drive hook 56 in the retracted position. The driving hook 56 is biased towards its hooked position by a hooking spring 64 in the form of an elastic arm which is fixed on the plate 48.

Le crochet de verrouillage 62 est monté pivotant autour d'un axe A5. Il comporte un bras de commande 63 qui s'étend du côté opposé à la portion d'accrochage par rapport à l'axe A5. Le crochet de verrouillage 62 est sollicité en pivotement vers sa position verrouillée, dans laquelle il retient le bras de blocage 60, par un ressort de rappel (non représenté).The locking hook 62 is pivotally mounted about an axis A5. It comprises a control arm 63 which extends on the opposite side to the attachment portion relative to the axis A5. The locking hook 62 is pivotally biased towards its locked position, in which it holds the locking arm 60 by a return spring (not shown).

De préférence, le plateau 48 est sollicité en rotation dans le sens du déclenchement par un ressort de plateau 66, de manière à initier le mouvement de rotation de la came d'armement 34 lorsque la sonnerie est déclenchée, comme on le verra par la suite. Le ressort de plateau 66 est ici constitué par un bras élastique qui comporte une extrémité fixe 68 et une extrémité libre 70 pourvue d'un galet 72 libre à rotation qui vient en appui dans une encoche 74 prévue à cet effet dans le bord périphérique externe 76 du plateau 48. Avantageusement, le bord périphérique externe 76 du plateau 48 a la forme d'un colimaçon, de rayon croissant dans le sens D du déclenchement, définissant l'encoche 74 pour l'appui du ressort de plateau 66.Preferably, the plate 48 is urged in rotation in the direction of release by a plate spring 66, so as to initiate the rotational movement of the camming cam 34 when the ringing is triggered, as will be seen later . The plate spring 66 is constituted by an elastic arm which comprises a fixed end 68 and a free end 70 provided with a free rotating roller 72 which bears in a notch 74 provided for this purpose in the outer peripheral edge 76 Advantageously, the outer peripheral edge 76 of the plate 48 has the shape of a spiral, of increasing radius in the direction D of the trigger, defining the notch 74 for the support of the plate spring 66.

Le bord périphérique externe 76 forme une piste de roulement pour le galet 72. Le galet 72 peut être réalisé en rubis synthétique pour minimiser les frottements avec le bord périphérique externe 76.The outer peripheral edge 76 forms a rolling track for the roller 72. The roller 72 may be made of synthetic ruby to minimize friction with the outer peripheral edge 76.

Selon un mode de réalisation avantageux, le dispositif de verrouillage 42 comporte une bascule de décrochement 78 qui est armée, à l'encontre d'un ressort 80 de rappel, par la came de déclenchement 16 et qui provoque le pivotement du crochet de verrouillage 62 vers sa position déverrouillée lorsque la came de déclenchement 16 relâche la bascule de décrochement 78.According to an advantageous embodiment, the locking device 42 comprises a step rocker 78 which is armed, against a return spring 80, by the triggering cam 16 and which causes the pivoting of the locking hook 62 to its unlocked position when the trip cam 16 releases the step rocker 78.

La bascule de décrochement 78 comporte une surface d'appui 81 qui est agencée en vis-à-vis d'une goupille 83 agencée sur le bras de commande 63 du crochet de verrouillage 62 de sorte que, lorsque la bascule de décrochement 78 est relâchée par la came de déclenchement 16, la surface d'appui 81 vienne appuyer contre la goupille 83 pour provoquer le pivotement du crochet de verrouillage 62 vers sa position déverrouillée.The recess rocker 78 has a bearing surface 81 which is arranged opposite a pin 83 arranged on the control arm 63 of FIG. locking hook 62 so that, when the step rocker 78 is released by the trigger cam 16, the bearing surface 81 comes to press against the pin 83 to cause the pivoting of the locking hook 62 to its unlocked position.

Selon le mode de réalisation représenté, la roue de renvoi 52 est liée en rotation au rouage de sonnerie 21 au moyen de deux roues intermédiaires 82, 84 de renvoi qui sont coaxiales et qui sont superposées axialement. La roue intermédiaire inférieure 82 engrène avec la roue de renvoi 52 et la roue intermédiaire supérieure 84 engrène avec une roue d'entraînement 86 appartenant au rouage de sonnerie 21. La roue d'entraînement 86 est ici coaxiale à la roue de détente 28.According to the embodiment shown, the return wheel 52 is rotatably connected to the ring gear 21 by means of two intermediate wheels 82, 84 of return which are coaxial and which are superimposed axially. The lower intermediate wheel 82 meshes with the return wheel 52 and the upper intermediate wheel 84 meshes with a drive wheel 86 belonging to the ring gear 21. The drive wheel 86 is here coaxial with the expansion wheel 28.

Avantageusement, l'organe 22 à commande manuelle coopère avec le dispositif de verrouillage 42 en vue de déclencher manuellement la sonnerie. A cet effet, l'organe 22 à commande manuelle comporte un levier d'actionnement 88, ici en forme de croissant, qui s'étend d'un côté de son axe de pivotement A5. Le levier d'actionnement 88 se prolonge, de l'autre côté de l'axe de pivotement A5, par un doigt de déverrouillage 90, visible sur la figure 3, qui passe sous la bascule de décrochement 78 et qui est prévu coopérer avec un plot 92 agencé, sur une face du crochet de verrouillage 62, en vue de commander ce crochet 62 en position déverrouillée.Advantageously, the manually operated member 22 cooperates with the locking device 42 in order to trigger the ring manually. For this purpose, the organ 22 with manual control comprises an actuating lever 88, here crescent-shaped, which extends on one side of its pivot axis A5. The actuating lever 88 is extended, on the other side of the pivot axis A5, by an unlocking finger 90, visible on the figure 3 , which passes under the recess rocker 78 and which is intended to cooperate with a pad 92 arranged on a face of the locking hook 62, to control the hook 62 in the unlocked position.

L'organe 22 à commande manuelle est par exemple actionné par un bouton poussoir (non représenté) accessible depuis l'extérieur du boîtier de la montre 10. Lorsqu'il est actionné, le levier d'actionnement 88 pivote dans le sens anti-horaire en considérant la figure 3, dans le sens horaire en considérant la figure 4, de sorte que le doigt de déverrouillage 90 vienne appuyer contre le plot 92 et provoque le pivotement du crochet de déverrouillage 62 vers sa position déverrouillée, à l'encontre de son ressort.The manually operated member 22 is for example actuated by a pushbutton (not shown) accessible from outside the watch case 10. When actuated, the actuating lever 88 pivots in the counterclockwise direction considering the figure 3 , clockwise considering the figure 4 , so that the unlocking finger 90 comes to press against the stud 92 and causes the pivoting of the unlocking hook 62 to its unlocked position, against its spring.

On décrit maintenant le fonctionnement du mécanisme de sonnerie 14 selon l'invention, notamment en référence aux figures 4 à 7 qui représentent plusieurs positions successives occupées par les éléments du mécanisme de sonnerie 14.The operation of the striking mechanism 14 according to the invention is now described, in particular with reference to the Figures 4 to 7 which represent several successive positions occupied by the elements of the striking mechanism 14.

La figure 4 représente le mécanisme de sonnerie 14 dans son état initial, juste avant le déclenchement automatique.The figure 4 represents the striking mechanism 14 in its initial state, just before the automatic triggering.

Dans cet état initial, l'un des bras 33 de la came de déclenchement 16 est encore en contact, par son extrémité libre, avec la bascule de décrochement 78 qui est armée à l'encontre de son ressort 80 de rappel. La bascule de déclenchement 24 est elle aussi armée à l'encontre de son ressort 38 de rappel, sa portée 36 étant en appui contre la portion de plus grand rayon de la came d'armement 34. La came d'armement 34 est bloquée en rotation avec le plateau 48 par l'intermédiaire du crochet de verrouillage 62 qui retient le bras de blocage 60.In this initial state, one of the arms 33 of the triggering cam 16 is still in contact, by its free end, with the step rocker 78 which is armed against its spring 80 return. The tripping lever 24 is also armed against its return spring 38, its bearing surface 36 being in abutment against the larger radius portion of the camming cam 34. of arming 34 is locked in rotation with the plate 48 by means of the locking hook 62 which holds the locking arm 60.

On note que le bras de blocage 60 est maintenu en appui contre le crochet de verrouillage 62 grâce au ressort de plateau 66 qui sollicite le plateau 48 dans le sens D du déclenchement.Note that the locking arm 60 is held in abutment against the locking hook 62 by the plate spring 66 which biases the plate 48 in the direction D of the trigger.

En retenant le bras de blocage 60, le crochet de verrouillage 62 commande le crochet d'entraînement 56 en position escamotée, à l'encontre du ressort d'accrochage 64, de sorte que la roue à rochet 58 est libre de tourner par rapport au plateau 48.By retaining the locking arm 60, the locking hook 62 controls the drive hook 56 in the retracted position, against the engaging spring 64, so that the ratchet wheel 58 is free to rotate relative to the tray 48.

La figure 5 représente le mécanisme de sonnerie 14 dans un premier état intermédiaire, juste après le déclenchement automatique. Dans cet état intermédiaire, la came de déclenchement 16 a poursuivi sa rotation dans le sens horaire, de quelques degrés par rapport à l'état initial, relâchant ainsi la bascule de décrochement 78.The figure 5 represents the striking mechanism 14 in a first intermediate state, just after the automatic triggering. In this intermediate state, the trip cam 16 has continued to rotate clockwise, a few degrees from the initial state, thereby releasing the rocking lever 78.

Le relâchement de la bascule de décrochement 78 provoque son retour vers une position d'équilibre stable, sous l'action de son ressort 80 de rappel. Avant d'atteindre sa position d'équilibre stable, la bascule de décrochement 78 dépasse cette position d'équilibre stable de sorte qu'elle actionne le crochet de verrouillage 62 dans le sens de son déverrouillage, en appuyant sur la goupille 83, ce qui libère le levier de blocage 60. Le crochet de verrouillage 62 revient ensuite dans sa position de verrouillage sous l'action de son ressort de rappel.The release of the rocker recess 78 causes its return to a stable equilibrium position, under the action of its spring 80 return. Before reaching its stable equilibrium position, the step rocker 78 exceeds this stable equilibrium position so that it actuates the locking hook 62 in the direction of unlocking, by pressing on the pin 83, which releases the locking lever 60. The locking hook 62 then returns to its locking position under the action of its return spring.

La libération du levier de blocage 60 provoque aussitôt le pivotement du plateau 48 dans le sens D du déclenchement, sous l'action du ressort de plateau 66. La came d'armement 34 tournant avec le plateau 48, la marche 46 se décale angulairement dans le sens D du déclenchement, permettant à la portée 36 de la bascule de déclenchement 24 de retomber sur la portion de plus petit rayon de la came d'armement 34, comme représenté sur la figure 5.The release of the locking lever 60 immediately causes the pivoting of the plate 48 in the direction D of the trigger, under the action of the plate spring 66. The arming cam 34 rotating with the plate 48, the step 46 shifts angularly in the direction D of the trigger, allowing the range 36 of the tripping lever 24 to fall on the smaller radius portion of the camming cam 34, as shown in FIG. figure 5 .

En retombant, la bascule de déclenchement 24 pivote vers la roue de détente 28 de sorte que le cliquet 26 vient en prise avec les dents de la roue de détente 28 pour provoquer sa rotation. La rotation de la roue de détente 28 libère alors le rouage de sonnerie 21 qui, de manière conventionnelle, va prendre l'information des heures, des minutes et des quarts sur des limaçons correspondants et actionner les marteaux sur les timbres de manière adéquate.Upon falling, the trigger rocker 24 pivots towards the trigger wheel 28 so that the pawl 26 engages the teeth of the detent wheel 28 to cause its rotation. The rotation of the detent wheel 28 then releases the ring gear 21 which, conventionally, will take hours, minutes and quarters information on corresponding snails and actuate the hammers on the stamps adequately.

En tournant autour de son axe, la roue de détente 28 provoque la rotation de la roue d'entraînement 86 qui transmet ce mouvement de rotation à la roue de renvoi 52 via les roues intermédiaires 82, 84 de renvoi.By rotating about its axis, the expansion wheel 28 causes the rotation of the drive wheel 86 which transmits this rotational movement to the return wheel 52 via the intermediate wheels 82, 84 of return.

Parallèlement, la libération du levier de blocage 60, provoque le pivotement du levier 54 autour de son axe A4, sous l'action du ressort d'accrochage 64, de sorte que le crochet d'entraînement 56 s'engage dans les dents de la roue à rochet 58. Grâce au crochet d'entraînement 56, le plateau 48 et la came d'armement 34 sont donc liés en rotation avec la roue à rochet 58 et la roue de renvoi 52. La rotation de la roue de renvoi 52 provoque donc la rotation de la came d'armement 34 qui coopère avec la portée 36 pour armer la bascule de déclenchement 24 en vue d'un prochain déclenchement de sonnerie.In parallel, the release of the locking lever 60 causes the lever 54 to pivot about its axis A4, under the action of the coupling spring 64, so that the driving hook 56 engages the teeth of the ratchet wheel 58. With the drive hook 56, the plate 48 and the arming cam 34 are thus connected in rotation with the ratchet wheel 58 and the deflection wheel 52. The rotation of the idler wheel 52 causes therefore the rotation of the cocking cam 34 which cooperates with the range 36 to arm the trigger rocker 24 for a next ringing trip.

La figure 6 représente le mécanisme de sonnerie 14 dans un second état intermédiaire après le déclenchement. Dans cet état intermédiaire, la bascule de déclenchement 24 est en cours d'armement, la came d'armement 34 n'ayant pas encore effectué un tour complet.The figure 6 represents the striking mechanism 14 in a second intermediate state after the trip. In this intermediate state, the trigger rocker 24 is being armed, the arming cam 34 having not yet completed a complete revolution.

La came d'armement 34 continue de tourner dans le sens D du déclenchement jusqu'à ce que le levier de blocage 60 soit arrêté par le crochet de verrouillage 62, ce qui se produit sur la figure 7, où l'on a représenté le mécanisme de sonnerie 14 dans un état final. Le levier de blocage 60 occupe alors de nouveau sa position angulaire initiale, par rapport à l'axe d'armement A3, ce qui correspond à l'état armé de la bascule de déclenchement 24. La bascule de déclenchement 24 est alors prête pour un nouveau déclenchement.The arming cam 34 continues to rotate in the direction D of the trip until the locking lever 60 is stopped by the locking hook 62, which occurs on the figure 7 , where the striking mechanism 14 is shown in a final state. The locking lever 60 then again occupies its initial angular position, with respect to the cocking axis A3, which corresponds to the armed state of the trigger rocker 24. The trigger rocker 24 is then ready for use. new trigger.

En arrêtant le levier de blocage 60, le crochet de verrouillage 62 provoque le pivotement du levier 54 autour de son axe A4, ici dans le sens anti-horaire, de sorte que le crochet d'entraînement 56 se dégage de la roue à rochet 58. Ceci permet de désolidariser le plateau 48 de la roue de renvoi 52, pour permettre à la roue de renvoi 52 de continuer à tourner librement avec le rouage de sonnerie 21.By stopping the locking lever 60, the locking hook 62 causes the lever 54 to pivot about its axis A4, here in the counter-clockwise direction, so that the driving hook 56 is disengaged from the ratchet wheel 58 This makes it possible to separate the plate 48 from the idler wheel 52, to allow the idler wheel 52 to continue to rotate freely with the ring gear 21.

On note que, pendant la rotation du plateau 48, le galet 72 porté par le ressort de plateau 66 roule sur le bord périphérique externe 76 du plateau 48 jusqu'à retrouver sa position initiale dans l'encoche 74.It is noted that, during the rotation of the plate 48, the roller 72 carried by the plate spring 66 rolls on the outer peripheral edge 76 of the plate 48 until it returns to its initial position in the notch 74.

Le fonctionnement en déclenchement manuel est similaire au précédent. En effet, l'actionnement de l'organe 22 à commande manuelle provoque le déverrouillage du crochet de déverrouillage 62, ce qui libère le levier de blocage 60 et permet le déclenchement de la sonnerie.Manual trigger operation is similar to the previous one. Indeed, the actuation of the member 22 to manual control causes the unlocking hook unlocking 62, which releases the locking lever 60 and allows the triggering of the ring.

On note que, dans le mécanisme de sonnerie 14 selon l'invention, la force prélevée sur le mouvement horloger 12 lors d'un déclenchement automatique est minime puisque la came de déclenchement 16 doit seulement vaincre l'effort de rappel du ressort 80 de la bascule de décrochement 78. L'effort nécessaire pour armer la bascule de déclenchement 24 est ici prélevé sur le rouage de sonnerie 21, puisque c'est la rotation de la roue d'entraînement 86 qui permet à la came d'armement 34 d'effectuer un tour complet. Auparavant, il était nécessaire d'obtenir une force d'environ douze à quatorze grammes au niveau de l'appui du bras de la came de déclenchement sur la bascule de déclenchement. Avec l'invention, il faut seulement de deux à trois grammes au niveau de l'appui du bras 33 de la came de déclenchement 16 sur la bascule de décrochement 78.Note that, in the striking mechanism 14 according to the invention, the force taken from the watch movement 12 during an automatic release is minimal since the trip cam 16 only has to overcome the return force of the spring 80 of the Flip-flop 78. The force necessary to arm the trigger rocker 24 is here taken from the ring gear 21, since it is the rotation of the drive wheel 86 that allows the cam arming 34 to perform a complete turn. Previously, it was necessary to obtain a force of about twelve to fourteen grams at the support of the arm of the trip cam on the trigger rocker. With the invention, it takes only two to three grams at the support of the arm 33 of the trigger cam 16 on the rocker recess 78.

Selon une variante de réalisation (non représentée), la bascule de décrochement 78 pourrait être supprimée. La came de déclenchement 16 commanderait alors directement le pivotement du crochet de verrouillage 62.According to an alternative embodiment (not shown), the recess rocker 78 could be suppressed. The trip cam 16 would then directly control the pivoting of the locking hook 62.

L'utilisation de la bascule de décrochement 76 présente l'avantage de compenser certaines dispersions dans le positionnement des pièces tournantes les unes par rapport aux autres, en particulier en ce qui concerne le centrage de la came de déclenchement 16 et du crochet de verrouillage 62 sur leurs axes respectifs.The use of the recess rocker 76 has the advantage of compensating for certain dispersions in the positioning of the rotating parts relative to each other, in particular as regards the centering of the trigger cam 16 and the locking hook 62 on their respective axes.

L'un des avantages de la pièce d'horlogerie selon l'invention est qu'elle bénéficie d'un déclenchement quasi instantané de la sonnerie puisque la bascule de déclenchement est pré-armée.One of the advantages of the timepiece according to the invention is that it benefits from an almost instantaneous triggering of the ring since the trigger rocker is pre-armed.

Avantageusement, le mécanisme de sonnerie 14 selon l'invention comporte un mécanisme de silence 94, qui est représenté sur la figure 7, et qui permet de neutraliser le déclenchement automatique de la sonnerie. Ce mécanisme de silence 94 comporte un levier de silence 96 pivotant autour d'un axe A7 entre une position angulaire neutre et une position angulaire de blocage, qui est représentée en trait discontinu sur la figure 7.Advantageously, the striking mechanism 14 according to the invention comprises a silence mechanism 94, which is represented on the figure 7 , and which neutralizes the automatic triggering of the ring. This silence mechanism 94 comprises a silence lever 96 pivoting about an axis A7 between a neutral angular position and an angular locking position, which is shown in dashed line on the figure 7 .

Le levier de silence 96 comporte, de part et d'autre de son axe de pivotement A7, un doigt de blocage 98 et un doigt d'actionnement 100. Il peut être actionné par un bouton-poussoir (non représenté) accessible depuis l'extérieur du boîtier de la montre 10 et agissant sur le doigt d'actionnement 100.The silence lever 96 comprises, on either side of its pivot axis A7, a locking pin 98 and an actuating finger 100. It can be actuated by a pushbutton (not shown) accessible from the outside of the watch case 10 and acting on the actuating finger 100.

Lorsque le levier de silence 96 est commandé en position de blocage, le doigt de blocage 98 vient en appui contre une surface correspondante 102 de la bascule de décrochement 78 de manière à en limiter le débattement. Plus précisément, le doigt de blocage 98 empêche le pivotement de la bascule de décrochement 78 au-delà de sa position d'équilibre, lorsqu'elle est relâchée par la came de déclenchement 16, ce qui empêche la bascule de décrochement 78 de venir appuyer contre la goupille 83 pour déverrouiller le crochet de verrouillage 62.When the silence lever 96 is controlled in the locking position, the locking pin 98 abuts against a corresponding surface 102 of the rocker recess 78 so as to limit the deflection. Specifically, the locking pin 98 prevents pivoting of the step rocker 78 beyond its equilibrium position, when released by the trigger cam 16, which prevents the rocker recess 78 from coming to press against the pin 83 to unlock the locking hook 62.

Un avantage de ce mécanisme de silence 94 est qu'il peut être actionné à tout moment, y compris pendant ou juste avant le déclenchement de la sonnerie. En effet, comme le mécanisme de silence 94 se contente de limiter la course de la bascule de décrochement 78, sans la bloquer en pivotement, celle-ci continue d'être armée au passage de chaque bras 33 de la came de déclenchement 16 sans que son fonctionnement général soit altéré par le passage en mode silence.An advantage of this silence mechanism 94 is that it can be operated at any time, including during or just before the ringing. Indeed, as the silence mechanism 94 merely limit the stroke of the rocker recess 78, without locking it in pivoting, it continues to be armed with the passage of each arm 33 of the trip cam 16 without its general operation is altered by the transition to silent mode.

Sur les figures 8 à 11, on a représenté un mode de réalisation du mécanisme qui permet la commande manuelle selon l'invention. Selon ce mode de réalisation, la bascule de déclenchement 24 est équipée d'une genouillère 104 qui porte le cliquet 26.On the Figures 8 to 11 , there is shown an embodiment of the mechanism that allows manual control according to the invention. According to this embodiment, the tripping lever 24 is equipped with a toggle joint 104 which carries the pawl 26.

La genouillère 104 a ici la forme d'une biellette qui est montée pivotante sur une face transversale supérieure 106 de la bascule de déclenchement 24 autour d'un axe auxiliaire A8 de pivotement. L'axe auxiliaire A8 est agencé à l'extrémité libre 32 de la bascule de déclenchement 24. La genouillère 104 s'étend de manière rectiligne dans le prolongement du corps principal 30 de la bascule de déclenchement 24, du côté opposé à l'axe de pivotement A2 de la bascule de déclenchement 24.The toggle joint 104 here has the shape of a rod which is pivotally mounted on an upper transverse face 106 of the trigger rocker 24 around an auxiliary pivot axis A8. The auxiliary axis A8 is arranged at the free end 32 of the trigger rocker 24. The toggle joint 104 extends rectilinearly in the extension of the main body 30 of the tripping lever 24, on the opposite side to the axis pivoting A2 of the trigger rocker 24.

Le cliquet 26 est monté pivotant autour de son axe A1 à l'extrémité libre 108 de la genouillère 104, du côté opposé à l'axe auxiliaire A8.The pawl 26 is pivotally mounted about its axis A1 at the free end 108 of the toggle joint 104, on the opposite side to the auxiliary axis A8.

Pour sa liaison en pivotement avec la bascule de déclenchement 24, la genouillère 104 comporte, sur sa face inférieure 110, en vis-à-vis de la face transversale supérieure 106 de la bascule de déclenchement 24, une butée 112 qui est en appui contre une surface axiale 114 associée aménagée dans l'extrémité libre 32 de la bascule de déclenchement 24, comme on l'a représenté sur la figure 11.For its pivotal connection with the tripping lever 24, the toggle joint 104 has, on its lower face 110, facing the upper transverse face 106 of the tripping lever 24, a stop 112 which bears against an associated axial surface 114 formed in the free end 32 of the trigger rocker 24, as shown in FIG. figure 11 .

De préférence, il est prévu un ressort (non représenté) qui sollicite la genouillère 104 en pivotement autour de l'axe auxiliaire A8 dans le sens de l'appui de la butée 112 contre la bascule de déclenchement 24, c'est-à-dire dans le sens horaire en considérant la figure 8.Preferably, there is provided a spring (not shown) which urges the toggle joint 104 to pivot about the auxiliary axis A8 in the direction of the abutment 112 against the trigger rocker 24, that is, say clockwise considering the figure 8 .

Selon un mode de réalisation avantageux, le cliquet 26 comporte, du côté opposé au doigt de détente 25 par rapport à l'axe A1, un bras d'actionnement 116 qui est prévu pour être actionné par l'organe 22 à commande manuelle.According to an advantageous embodiment, the pawl 26 comprises, on the opposite side to the trigger finger 25 relative to the axis A1, an actuating arm 116 which is intended to be actuated by the organ 22 manually controlled.

Sur la figure 8, le mécanisme de sonnerie 14 est représenté dans un état initial, avant déclenchement.On the figure 8 , the striking mechanism 14 is shown in an initial state, before triggering.

Lors d'un déclenchement manuel, illustré par la figure 10, le levier d'actionnement 88 de l'organe 22 à commande manuelle vient en appui contre l'extrémité libre du bras d'actionnement 116 ce qui provoque le fléchissement de la genouillère 104 qui pivote autour de son axe auxiliaire A8, relativement à la bascule de déclenchement 24, pour permettre au cliquet 26 d'entraîner la roue de détente 28 en rotation. La bascule de déclenchement 24 reste alors dans sa position initiale armée.When triggered manually, illustrated by the figure 10 , the actuating lever 88 of the manually operated member 22 bears against the free end of the actuating arm 116, which causes the toggle 104 to pivot, which pivots about its auxiliary axis A8, relative to the trigger flip-flop 24, to allow the pawl 26 to drive the detent wheel 28 in rotation. The trigger latch 24 then remains in its initial armed position.

Lorsque la pression sur le levier d'actionnement 88 est relâchée, la genouillère 104 pivote autour de l'axe auxiliaire A8 dans le sens du retour à son état initial, illustré par la figure 8. Le pivotement de la genouillère 104 est arrêté par la butée 112 qui vient en appui contre la bascule de déclenchement 24.When the pressure on the operating lever 88 is released, the toggle lever 104 pivots about the auxiliary axis A8 in the direction of return to its state initial, illustrated by the figure 8 . The pivoting of the toggle joint 104 is stopped by the abutment 112 which bears against the tripping lever 24.

Lors d'un déclenchement automatique, illustré par la figure 9, la bascule de déclenchement 24 pivote autour de son axe A2 vers la roue de détente 28 avec la genouillère 104. Comme la butée 112 est en appui contre la surface axiale 114 associée, la genouillère 104 est entraînée en pivotement avec la bascule de déclenchement 24 de sorte que le cliquet 26 vient en prise avec la roue de détente 28 comme précédemment.During an automatic trigger, illustrated by the figure 9 , the trigger rocker 24 pivots about its axis A2 towards the trigger wheel 28 with the toggle joint 104. As the abutment 112 bears against the associated axial surface 114, the toggle joint 104 is pivotally engaged with the trigger rocker 24 so that the pawl 26 engages the detent wheel 28 as before.

On note que ce mode de réalisation peut être mis en oeuvre dans tout mécanisme de sonnerie 14, y compris un mécanisme de sonnerie tel que décrit dans l'art antérieur mentionné précédemment. L'avantage est qu'il permet d'utiliser un seul cliquet 26 pour le déclenchement automatique et pour le déclenchement manuel, alors qu'auparavant les mécanismes de sonnerie devaient être équipés d'un premier cliquet commandé par la bascule de déclenchement pour le déclenchement automatique et d'un second cliquet commandé par l'organe à commande manuelle pour le déclenchement manuel.Note that this embodiment can be implemented in any striking mechanism 14, including a striking mechanism as described in the prior art mentioned above. The advantage is that it allows the use of a single pawl 26 for automatic triggering and for manual triggering, whereas previously the striking mechanisms had to be equipped with a first pawl controlled by the trigger rocker for tripping. automatic and a second pawl controlled by the manually operated device for manual triggering.

Claims (8)

  1. Timepiece (10) including a timepiece movement (12) and a repeater striking mechanism (14), the striking mechanism being released either automatically by the timepiece movement (12), or manually by a manual control member (22), wherein the striking mechanism (14) includes a release lever (24) fitted with a click (26) which is pivotably mounted on the release lever (24) and which meshes with the teeth (27) of a ratchet detent wheel (28) such that, during automatic release, a release cam (16) driven by the motion work (18) of the timepiece movement (12) causes the release lever (24) to pivot towards the detent wheel (28) and the click (26) drives the detent wheel (28) in rotation,
    characterized in that the release lever (24) is fitted with a toggle lever (104) which carries the click (26), in that the toggle lever (104) is pivotably connected to the release lever (24) during automatic release, and in that manual release is caused by the pivoting of the toggle lever (104) relative to the release lever (24) via the action of the manual control member (22).
  2. Timepiece (10) according to the preceding claim, characterized in that the pivoting axis (A8) of the toggle lever (104) is arranged at a free end (32) of the release lever (24), on the side opposite the pivoting axis (A2) of the release lever (24).
  3. Timepiece (10) according to the claim 1 or 2, characterized in that the toggle lever (104) extends the release lever (24), on the side opposite the pivoting axis (A2) of the release lever (24).
  4. Timepiece (10) according to any one of the preceding claims, characterized in that the click (26) includes a detent finger (25) whose free end meshes with the teeth (27) of the detent wheel (28) and an actuating arm (116) which cooperates with the manual control member (22) such that the manual control member (22) causes the toggle lever (104) to pivot towards the detent wheel (28) by abutting against the actuating arm (116).
  5. Timepiece (10) according to any one of the preceding claims, characterized in that the toggle lever (104) comprises a stop member (112) which abuts against an associated axial surface (114) arranged in the release lever (24) in order to pivotably connect the toggle lever (104) to the release lever (24).
  6. Timepiece (10) according to any one of the preceding claims, characterized in that the striking mechanism (14) includes a winding cam (34) which cooperates with an associated shoulder (36) of the release lever (24) to control the winding of the release lever (24) against a spring (38), in that the release lever (24) is restrained in the wound position by a locking device (42), and in that the winding cam (16) releases the striking mechanism by unlocking the locking device (42).
  7. Timepiece (10) according to the preceding claim, characterized in that the winding cam (34) has the shape of a rotating snail of increasing radius including a step (46) between the portion with the smallest radius and the portion with the largest radius.
  8. Timepiece (10) according to the preceding claim, characterized in that, in the wound position, the shoulder (36) of the release lever (24) abuts against the portion of the winding cam (34) with the largest radius and the locking device (42) locks the winding cam (34) in rotation.
EP05112169A 2005-12-14 2005-12-14 Timepiece including a single-pawl striking mechanism Active EP1798610B1 (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
DE602005010600T DE602005010600D1 (en) 2005-12-14 2005-12-14 Clock that includes a percussion mechanism with a single locking cone
AT05112169T ATE412206T1 (en) 2005-12-14 2005-12-14 WATCH INCLUDING A STRIKE MECHANISM WITH A SINGLE RATCH CONE
EP05112169A EP1798610B1 (en) 2005-12-14 2005-12-14 Timepiece including a single-pawl striking mechanism
JP2006333907A JP4939194B2 (en) 2005-12-14 2006-12-12 Clock with a single click time-belling mechanism
SG200608693-8A SG133529A1 (en) 2005-12-14 2006-12-13 Timepiece including a striking mechanism with a single click
CN200610167076A CN100576110C (en) 2005-12-14 2006-12-14 The clock and watch that comprise striking mechanism with single-pawl
US11/610,581 US7330403B2 (en) 2005-12-14 2006-12-14 Timepiece including a striking mechanism with a single click
HK07109529.4A HK1101832A1 (en) 2005-12-14 2007-09-03 Timepiece including a striking mechanism with a single click

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP05112169A EP1798610B1 (en) 2005-12-14 2005-12-14 Timepiece including a single-pawl striking mechanism

Publications (2)

Publication Number Publication Date
EP1798610A1 EP1798610A1 (en) 2007-06-20
EP1798610B1 true EP1798610B1 (en) 2008-10-22

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EP05112169A Active EP1798610B1 (en) 2005-12-14 2005-12-14 Timepiece including a single-pawl striking mechanism

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US (1) US7330403B2 (en)
EP (1) EP1798610B1 (en)
JP (1) JP4939194B2 (en)
CN (1) CN100576110C (en)
AT (1) ATE412206T1 (en)
DE (1) DE602005010600D1 (en)
HK (1) HK1101832A1 (en)
SG (1) SG133529A1 (en)

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Publication number Publication date
ATE412206T1 (en) 2008-11-15
DE602005010600D1 (en) 2008-12-04
US7330403B2 (en) 2008-02-12
CN1983082A (en) 2007-06-20
JP4939194B2 (en) 2012-05-23
JP2007163489A (en) 2007-06-28
US20070147183A1 (en) 2007-06-28
CN100576110C (en) 2009-12-30
HK1101832A1 (en) 2007-10-26
EP1798610A1 (en) 2007-06-20
SG133529A1 (en) 2007-07-30

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