EP3825781B1 - Striking mechanism for timepiece - Google Patents

Striking mechanism for timepiece Download PDF

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Publication number
EP3825781B1
EP3825781B1 EP19210283.8A EP19210283A EP3825781B1 EP 3825781 B1 EP3825781 B1 EP 3825781B1 EP 19210283 A EP19210283 A EP 19210283A EP 3825781 B1 EP3825781 B1 EP 3825781B1
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EP
European Patent Office
Prior art keywords
rocker
striking
striking mechanism
actuating device
main member
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
EP19210283.8A
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German (de)
French (fr)
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EP3825781A1 (en
Inventor
François De Titta
Florent Zufferey
Pascal Purro
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.)
Chopard Technologies SA
Original Assignee
Chopard Technologies SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
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Priority to EP19210283.8A priority Critical patent/EP3825781B1/en
Publication of EP3825781A1 publication Critical patent/EP3825781A1/en
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Publication of EP3825781B1 publication Critical patent/EP3825781B1/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 a striking mechanism for a timepiece such as a wristwatch or a pocket watch.
  • the striking mechanism is for example a minute repeater or a grand strike.
  • the present invention relates more particularly to a striking mechanism of the type described in the patent EP 3108307 B1 of the plaintiff, that is to say comprising at least one gong, an actuating device for actuating the gong(s), a striking barrel, a rocker clutch device for coupling the device to actuation to the striking barrel, the lever of the clutch device being arranged to pivot between a first position where the actuating device is coupled to the striking barrel and a second position where the actuating device is decoupled from the striking barrel , and a bell trigger device.
  • the patent EP 3108307 B1 describes two exemplary embodiments for the bell triggering device.
  • a release lever 15 serves as a support for a pin 14 carried by the rocker 6 of the clutch device to retain this rocker.
  • a bell trigger button 15a the trigger lever 15 is pivoted, which releases the rocker 6, which pivots under the action of its return spring to pass from its first to its second position, thus triggering taking information of the number of strokes to ring then raising the rocker 6 to its first position and then the ringing itself.
  • the bell trigger device comprises a trigger lever 124 and a control lever 125 pivotable at respective points 126, 127 which are fixed relative to each other.
  • the lever trigger 124 serves as a support for a pin 121 carried by the rocker, designated here by the reference 110, of the clutch device to retain this rocker.
  • the control lever 125 is controlled by the bell trigger pusher and carries a retractable lip 132 which, when the pusher is actuated, comes into contact with a lip 133 of the trigger lever 124 to pivot the trigger lever 124 and release thus the flip-flop 110.
  • the trigger device there is a risk that too rapid a release of the pusher by the user will cause the trigger lever 15 to come to block against the pin 14 of the rocker before the seesaw has completed its ascent to its first position.
  • the rocker of the clutch device is then prevented from returning to its first position where it would allow the striking barrel to actuate the gong(s) via the actuating device.
  • the mechanism is blocked.
  • the rocker of the clutch device drops back down to its second position even though the bell has not finished ringing. ringing, which restarts the ringing and so on until the energy of the ringing barrel is exhausted. The same phenomenon can occur if the push-button is pressed while the bell is ringing.
  • the triggering device can cause the same type of malfunction as the first exemplary embodiment when the push-button is actuated while the bell is ringing: the bell restarts before it has finished ringing, the phenomenon repeating itself until the energy of the striking barrel is exhausted.
  • This type of malfunction can also occur during very slow actuation of the bell trigger push-piece, during which, because of the retractable spout 132, the trigger device may find itself in an unstable equilibrium position.
  • the present invention aims to remedy, in part at least, the aforementioned drawbacks and to this end proposes a striking mechanism for a timepiece according to claim 1, particular embodiments being defined in the dependent claims.
  • the figures 1 to 5 show a striking mechanism as described in the patent EP 3108307 B1 .
  • This striking mechanism is for example a minute repeater or a grand strike. It is intended to be integrated or added to the movement of a piece timepiece such as a wristwatch.
  • This striking mechanism comprises, in a frame 1, a striking train 2 connecting a striking barrel 3 to a regulator 4.
  • the striking barrel 3 can be the barrel of the movement or a barrel dedicated to striking. It engages with a wheel 2a of the striking train 2 and can be wound by turning a winding stem 5.
  • the winding stem 5 is preferably the winding stem of the movement, also serving to wind the barrel of the movement.
  • Regulator 4 is for example a centrifugal regulator (Watt regulator). It is used to regulate the tempo of the strokes to be sounded.
  • a clutch rocker 6 pivoting about an axis 7 carries two pinions 8, 9 rotatable with respect to the rocker 6.
  • the pinion 8 is rotatable about the axis 7 and is permanently in mesh with a pinion 10 integral with a ring shaft 11.
  • the pinion 8 also meshes permanently with the pinion 9, said clutch pinion.
  • the clutch pinion 9 meshes with a pinion 12 which is engaged with the striking barrel 3 and therefore transmits the movement of the striking barrel 3 to the striking shaft 11 via the pinions 8, 10.
  • a second position or disengaged position, of the clutch rocker 6 the clutch pinion 9 does not mesh with the pinion 12 and therefore leaves the ring shaft 11 free to rotate.
  • the clutch rocker 6 is subjected to the action of a return spring 13 which tends to cause it to pivot in the disengagement direction.
  • the clutch rocker 6 carries a pin 14 (cf. figure 2 ) which, when the striking mechanism is in its rest state, is held against a first end of a striking trigger lever 15 by the action of the return spring 13, thus maintaining the clutch rocker 6 in its engaged position.
  • the bell trigger lever 15 In its rest position, the bell trigger lever 15 is held against a surface 1a of the frame 1 by an all-or-nothing return spring 17.
  • the bell trigger lever 15 can be pivoted in the clockwise direction of the figure 2 to release the pin 14 and therefore the clutch rocker 6 by pushing axially a tube 15a which acts on a second end 16 of the striking trigger lever 15.
  • the tube 15a surrounds the winding stem 5 and is associated with a push-crown (not shown) mounted on the end of said winding stem 5.
  • the striking trigger lever 15 could be actuated by a pusher independent of the winding stem 5.
  • the rocker clutch 6 defines a spout 18 (cf. figure 1 ) which cooperates with a stop star 19 secured to a wheel 2b of the ring gear 2, to lock the ring gear 2 and the ring barrel 3, when the clutch rocker 6 is in its disengaged position.
  • the hour ratchet 20 is integral with the striking shaft 11.
  • the quarter 21 and minute 22 ratchets are free to rotate with respect to the striking shaft 11.
  • the teeth of the ratchets 20, 21, 22 are used to actuate bell lifts 23, 24, 25, 26 which themselves actuate hammers 27, 28 which strike gongs 29, 30 to excite them.
  • the lifts include a 23-hour lift, a 24-hour first lift coaxial with the 23-hour lift, a 25-minute lift, and a 26-minute second lift coaxial with the 25-minute lift.
  • Each group of lifts 23-24 respectively 25-26, is arranged to actuate a respective hammer 27, 28, which is arranged to strike a respective stamp 29, 30, the two stamps 29, 30 producing different sounds.
  • the hour ratchet 20 comprises a set of teeth with 12 teeth to actuate the hour lever 23 so that the latter actuates the hammer 27, called the hour hammer.
  • the minute ratchet 22 comprises a 14-tooth toothing to actuate the minute lifter 25 so that it actuates the hammer 28, called the minute hammer.
  • the quarter ratchet 21 comprises two toothings with 3 teeth to actuate the two lifts of the quarters 24, 26, respectively, so that these alternately operate the 27 hour hammer and the 28 minute hammer.
  • the hour, quarter and minute ratchets 20, 21, 22 are secured respectively to the hour, quarter and minute pinions, of which only the quarter 32 and minute 33 pinions are visible at the picture 3 .
  • the hour pinion is meshed with a toothing of a 34 hour rake.
  • the quarter pinion 32 is meshed with a toothing of a quarter rake 35.
  • the minute pinion 33 is meshed with a toothing of a minute rake 36.
  • the quarter and minute rakes 35, 36 pivot around the same axis 37.
  • the hours rake 34 preferably pivots around an axis 38 separate from the pivot axis 37 quarter and minute rakes 35, 36, but could alternatively pivot about the same pivot axis 37 as the quarter and minute rakes 35, 36.
  • a feeler for the hours 39 is pivotally mounted around the pivot axis 38 of the rake for the hours 34.
  • the beak 40 of the feeler for the hours 39 is arranged to cooperate with a cam for the hours 41 (visible on the figure 1 ).
  • a pin (not visible in the drawings) carried by the hour feeler 39 and engaged in an opening of the hour rake 34 defines a range of relative angular displacement between the hour feeler 39 and the hour rake 34.
  • a quarters feeler 44 is pivotally mounted around the pivot axis 37 of the quarters rake 35 and of the minutes rake 36.
  • the beak 45 of the quarters feeler 44 is arranged to cooperate with a quarters cam 46 (cf. figure 4 ).
  • a pin 47 carried by the quarters rake 35 and engaged in an opening 48 of the quarters feeler 44 defines a range of relative angular displacement between the quarters feeler 44 and the quarters rake 35.
  • a minutes feeler 49 is integral with the minutes rack 36 and preferably in one piece with the minutes rack 36 (cf. picture 3 ).
  • the Beak 50 of the minutes feeler 49 is arranged to cooperate with a minutes cam 51 (cf. figure 4 ).
  • the hour, quarter and minute cams 41, 46, 51 are driven by the movement in a conventional manner.
  • the quarter and minute cams 46, 51 pivot around the same axis which may be that of the movement roadway.
  • the hour cam 41 is preferably not coaxial with the quarter and minute cams 46, 51.
  • Each of the hour, quarter and minute racks 34, 35, 36 is subjected to the action of a return spring 52, 53, 54 (cf. picture 3 ) tending to rotate it in the direction that brings the beak of the corresponding feeler closer to the corresponding cam.
  • the shift feeler 44 comprises at its end opposite to that defining the shift spout 45 a spout 63 arranged to actuate a first clutch control lever 64 (cf. figure 4 ).
  • the first clutch control lever 64 is mounted on the shift rack 35 and subjected to the action of a return spring 65 which keeps it in contact with the beak 63 of the shift feeler 44.
  • the first control lever clutch lever 64 is arranged to actuate a second clutch control lever 66 mounted on the frame 1.
  • the second clutch control lever 66 defines a fork 67 which receives the pin 14 carried by the clutch lever 6.
  • the clutch device is no longer in the form of a clutch rocker 6 carrying pinions 8, 9 but in the form of a rocker 110 and a differential gear 111 controlled by this rocker 110.
  • the clutch device comprises a rocker, a vertical clutch mobile and a spring control member acting on the vertical clutch mobile and itself controlled by the rocker.
  • the bell trigger lever 15 can be replaced by a trigger lever 124 and a control lever 125 pivoting at respective points 126, 127 which are fixed with respect to the frame 1.
  • the trigger lever 124 cooperates with the pin, designated here by the reference 121, carried by the rocker of the clutch device to retain it, and comprises a beak 133.
  • the trigger lever 124 has its own return spring 128 and its own stop 130 which defines its rest position.
  • the control lever 125 can be actuated by the user by means of the ringing trigger button (push-crown or independent button) and is subjected to the action of a return spring 129 of the all or nothing type.
  • the control lever 125 carries a retractable spout 132.
  • bell triggering device 15 and 124, 125 shown in figure 2 and 5 have the drawbacks set out in the introductory part of the present application: they cannot prevent malfunctions of the striking mechanism in certain cases of irregular manipulation of the pusher by the user.
  • the striking mechanism according to the invention is identical to that illustrated in figures 1 to 4 except for its trigger device. Another optional difference is that in the present invention the shift feeler 44 and the first clutch control lever 64 are merged and are integral with the shift rake 35, this in order to simplify the mechanism while ensuring good synchronization between the contact of the beak 45 with the shift cam 46 and the actuation of the second clutch control lever 66 by the shift feeler 44.
  • the first clutch control lever 64 thus becomes a beak of the shift feeler 44 and of the shift rake 35, which will be designated hereinafter by the same reference , 64.
  • a first embodiment of the device for triggering the striking mechanism according to the invention is shown in figure 6 . It comprises a main body 200, an auxiliary body 201 and a safety body 202.
  • the main member 200 is a lever pivoted at a fixed point 203 with respect to the frame 1 of the striking mechanism and is manually operable via a striking trigger button or other manual member such as a lock.
  • a return spring 204 preferably of the on/off type, tends to hold the main member 200 against a stop 205 which defines its rest position.
  • the main body 200 carries, at its end opposite that on which the pusher acts, a retractable spout 206 consisting of two upper 206a and lower 206b concurrent parts and pivoted at a point 206c on the main body 200.
  • the main body 200 further carries an abutment 207 (visible at figure 13 ), a return spring 208 which tends to hold the retractable spout 206 against the abutment 207 and an actuating pin 209.
  • the abutment 207 is constituted by the wall of an oblong hole in which is engaged a pin 206d carried by the retractable spout 206.
  • the auxiliary member 201 is a lever pivoted at a point 210 fixed relative to the frame 1 and comprises a beak 211 arranged to cooperate with the actuating pin 209. With this auxiliary member 201 are associated, as for the main member 200 and the retractable spout 206, a return spring 212 and a stopper 213.
  • the safety device 202 is a lever pivoted at a point 214 fixed relative to the frame 1 and also has its return spring 215 and its stop 216.
  • the safety device 202 comprises a beak 217.
  • the user rotates the main body 200 clockwise figures 6 and 7 , which main member 200 therefore deviates from the fork 67.
  • the auxiliary member 201 is itself pivoted counterclockwise by the actuating pin 209 carried by the main member 200 and thus deviates from the trajectory of the pin 14.
  • Nothing can retain the rocker 6, 110 of the clutch device which drops to its second position (cf. figure 8 ) where the clutch device is disengaged and the striking barrel 3 is decoupled from the striking shaft 11.
  • the information acquisition phase begins, during which the feelers for hours 39, quarters 44 and minutes 49 will take the information of the number of strokes to ring on the cams for hours 41, quarters 46 and minutes 51.
  • the quarters rake 35 releases the safety device 202 which rests in low position against his stop 216 (cf. figure 9 ).
  • the shift rake 35 also raises the clutch control lever 66 and its fork 67 to its initial position via its beak 64.
  • the clutch control lever 66 briefly raises the safety member 202 and then lets it fall against its stop 216.
  • the beak 217 of the safety member 202 is engaged in a notch 218 of the lever clutch control 66 and is almost in contact with a beak 219 of the latter.
  • the clutch device is in its engaged state and the 3 striking barrel begins to rotate the 34 hour, 35 quarter and 36 minute rakes in the other direction, opposing the force of their springs of reminder, to ring the bell.
  • the main member 200 and the auxiliary member 201 return to their rest position (cf. figure 10 ).
  • the shift rack 35 puts the safety device 202 back in its high position (cf. figure 6 ).
  • the beak 64 As long as the beak 64 is in contact with the clutch control lever 66, it maintains the latter in position. At some point during the ringing, after the quarter ringing, the beak 64 loses contact with the clutch control lever 66. If the user has released the pusher, the upper part 206a of the retractable beak 206 retains the fork 67 after the contact between the beak 64 and the clutch control lever 66 has been lost, allowing the bell to continue ringing. If the user has still not released the pusher, it is the safety device 202 which retains the clutch control lever 66 after loss of contact between the beak 64 and the clutch control lever 66 , by cooperating with the beak 219.
  • the user can therefore extend his pressure on the pusher as much as he wishes, the ringing mechanism will not be disturbed.
  • the main member 200 returns to its rest position and, by cooperating with the face of the inclined end 67a of the upper tooth of the fork 67, slightly lifts the fork 67 and therefore the pin 14 which allows the auxiliary member 201 to return to its place under the pin 14.
  • the resisting torque exerted by the auxiliary member 201 on the lever 6, 110 via the pin 14 is insufficient to prevent the raising of the lever 6, 110.
  • the return spring 212 of the auxiliary member 201 as the return spring 208 of the retractable spout 206, in fact has a low stiffness.
  • rocker 6, 110 is in its first position, auxiliary member 201 can return to its rest position, under pin 14 (cf. figure 13 ).
  • the rocker 6, 110 is then retained in its first position by the fork 67 itself retained by the contact between the beak 64 and the clutch control lever 66 until the beak 64 loses contact with the lever clutch control 66 (after the bell of the quarters), moment from which the auxiliary member 201 takes over by serving as a stop for the pin 14.
  • the rocker 6, 110 of the clutch device is thus retained by the auxiliary member 201 until the end of the ringing and even until the next triggering of the ringing after which the main member 200 can return to its rest position with its beak 206 in its rest position, not retracted, where it retains fork 67 (cf. figure 6 ).
  • the main member 200 pivots and makes the auxiliary member 201 pivot, but the clutch control lever 66 is retained by the safety member 202, which maintains the rocker 6, 110 of the clutch device in its first position. No malfunction occurs.
  • the main member 200 returns to its rest position and, by cooperating with the inclined end face 67a of the upper tooth of the fork 67, slightly lifts the fork 67 and therefore the pin 14 which allows the auxiliary member 201 to resume its place under the pin 14.
  • the striking mechanism does not malfunction either in the event of very slow actuation of the striking trigger pusher since no position of unstable equilibrium can be obtained thanks in particular to the rigid connection (without retractable nose) between the main organ 200 and the auxiliary member 201.
  • the figures 14 to 17 show a second embodiment of the trigger device according to the invention.
  • the retractable spout 206 of the main body 200 cooperates with the pin 14 rather than with the fork 67 (not represented on the figures 14 to 17 ).
  • the auxiliary member 201 is coaxial with the main member 200 and its return spring 212 and its stop 213 are carried by the main member 200.
  • the pin 14 bears against an inclined upper face of the retractable spout 206 and the auxiliary member 201 is located under the pin 14 but with a slight play between it and the pin 14.
  • the main member 200 and the auxiliary member 201 pivot integrally clockwise at a point 220 and thus move apart every two of the pin 14, allowing the rocker 6 of the clutch device to drop from its first position to its second position where the striking barrel 3 is decoupled from the striking shaft 11.
  • the main body 200 falls back into its rest position, against its abutment.
  • the retractable spout 206 of the main body 200 is then above the pin 14 but retracts in contact with the pin 14, allowing the rocker 6 to complete its ascent.
  • the auxiliary member 201 moves back relative to the main member 200 in contact with the pin 14 and is replaced under the pin 14 at the end of the movement of the rocker 6 (cf. figure 17 ).
  • the resistant torque exerted by the auxiliary member 201 on the rocker 6 via the pin 14 is insufficient to prevent the rise of the rocker 6.
  • the return spring 212 of the auxiliary member 201 like the return spring 208 of the retractable spout 206, has indeed a low stiffness.
  • the auxiliary member 201 retains the pin 14 as soon as the beak 64 of the quarters rake 35 loses contact with the clutch control lever 66 (after the quarters ringing), and this until the end of the ringing and even until the next triggering of the ringing after which the main body 200 can return to its rest position with its beak 206 in its rest position, not retracted, where it retains the pin 14 (cf. figure 14 ).
  • the safety device 202 intervenes in the event of continuous actuation of the bell trigger push-button or of actuation of the bell trigger push-button while the bell is ringing, as in the first embodiment.
  • the inclination of the upper face of the retractable spout 206 allows the latter to slightly lift the pin 14, so that the auxiliary member 201 can resume its place under the pin 14, after the release of the pusher.
  • the auxiliary member 201 is pivotally mounted on the main member 200 instead of being coaxial with the main member 200.
  • the figure 18 shows a third embodiment of the trigger device according to the invention.
  • the trigger device according to this third embodiment is functionally similar to that of the second embodiment, but the main member 200, with its retractable spout 206, and the auxiliary member 201 are part of the same monolithic part pivoted in one point 221.
  • the retractable spout 206 is coupled to the body of the main member 200 by a first flexible guide 222 and the auxiliary member 201 is coupled to the body of the main member 200 by a second flexible guide 223.
  • the first flexible guide 222 has crossed blades and guides the retractable spout 206 essentially in rotation relative to the body of the main member 200 while the second flexible guide 223 has circular necks and guides the auxiliary member 201 essentially in translation relative to the body of the main member 200.
  • the flexible guides 222, 223 also act as return springs for the retractable spout 206 and the auxiliary member ire 201.
  • the various embodiments described above are not exhaustive. Many other modifications could be made without departing from the scope of the claimed invention.
  • the auxiliary member 201 and the safety member 202 could be movable in translation. Whether they are mobile in rotation or in translation, the main 200, auxiliary 201 and safety 202 members can be guided by rigid elements (axes, slides, etc.) or by flexible guides.

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  • General Physics & Mathematics (AREA)
  • Toys (AREA)
  • Portable Nailing Machines And Staplers (AREA)

Description

La présente invention concerne un mécanisme de sonnerie pour une pièce d'horlogerie telle qu'une montre-bracelet ou une montre de poche. Le mécanisme de sonnerie est par exemple une répétition à minutes ou une grande sonnerie.The present invention relates to a striking mechanism for a timepiece such as a wristwatch or a pocket watch. The striking mechanism is for example a minute repeater or a grand strike.

La présente invention concerne plus particulièrement un mécanisme de sonnerie du type décrit dans le brevet EP 3108307 B1 de la demanderesse, c'est-à-dire comprenant au moins un timbre, un dispositif d'actionnement pour actionner le(s) timbre(s), un barillet de sonnerie, un dispositif d'embrayage à bascule pour coupler le dispositif d'actionnement au barillet de sonnerie, la bascule du dispositif d'embrayage étant agencée pour pivoter entre une première position où le dispositif d'actionnement est couplé au barillet de sonnerie et une deuxième position où le dispositif d'actionnement est découplé du barillet de sonnerie, et un dispositif de déclenchement de la sonnerie.The present invention relates more particularly to a striking mechanism of the type described in the patent EP 3108307 B1 of the plaintiff, that is to say comprising at least one gong, an actuating device for actuating the gong(s), a striking barrel, a rocker clutch device for coupling the device to actuation to the striking barrel, the lever of the clutch device being arranged to pivot between a first position where the actuating device is coupled to the striking barrel and a second position where the actuating device is decoupled from the striking barrel , and a bell trigger device.

Le brevet EP 3108307 B1 décrit deux exemples de réalisation pour le dispositif de déclenchement de la sonnerie.The patent EP 3108307 B1 describes two exemplary embodiments for the bell triggering device.

Dans le premier exemple, illustré aux figures 3 et 4 dudit brevet et à la figure 2 ci-jointe, un levier de déclenchement 15 sert d'appui à une goupille 14 portée par la bascule 6 du dispositif d'embrayage pour retenir cette bascule. Lorsque l'utilisateur actionne un poussoir de déclenchement de sonnerie 15a le levier de déclenchement 15 est pivoté, ce qui libère la bascule 6, laquelle pivote sous l'action de son ressort de rappel pour passer de sa première à sa deuxième position, déclenchant ainsi la prise d'information du nombre de coups à sonner puis la remontée de la bascule 6 vers sa première position et ensuite la sonnerie proprement dite.In the first example, shown in figure 3 and 4 of said patent and to the figure 2 attached, a release lever 15 serves as a support for a pin 14 carried by the rocker 6 of the clutch device to retain this rocker. When the user actuates a bell trigger button 15a the trigger lever 15 is pivoted, which releases the rocker 6, which pivots under the action of its return spring to pass from its first to its second position, thus triggering taking information of the number of strokes to ring then raising the rocker 6 to its first position and then the ringing itself.

Dans le deuxième exemple de réalisation, illustré aux figures 24 et 25 dudit brevet et à la figure 5 ci-jointe, le dispositif de déclenchement de sonnerie comprend un levier de déclenchement 124 et un levier de commande 125 pivotant en des points respectifs 126, 127 qui sont fixes l'un par rapport à l'autre. Le levier de déclenchement 124 sert d'appui à une goupille 121 portée par la bascule, désignée ici par le repère 110, du dispositif d'embrayage pour retenir cette bascule. Le levier de commande 125 est commandé par le poussoir de déclenchement de sonnerie et porte un bec rétractable 132 qui, lorsque le poussoir est actionné, entre en contact avec un bec 133 du levier de déclenchement 124 pour faire pivoter le levier de déclenchement 124 et libérer ainsi la bascule 110. Celle-ci passe alors de sa première à sa deuxième position pour déclencher la prise d'information puis la remontée de la bascule 110 vers sa première position et ensuite la sonnerie proprement dite. Dès que le poussoir est relâché, le levier de commande 125 revient à sa position de repos, ce retour s'effectuant malgré la présence du bec 133 du levier de déclenchement 124 sur la trajectoire du levier de commande 125, grâce au caractère rétractable du bec 132.In the second exemplary embodiment, illustrated in figures 24 and 25 of said patent and in the figure 5 attached, the bell trigger device comprises a trigger lever 124 and a control lever 125 pivotable at respective points 126, 127 which are fixed relative to each other. The lever trigger 124 serves as a support for a pin 121 carried by the rocker, designated here by the reference 110, of the clutch device to retain this rocker. The control lever 125 is controlled by the bell trigger pusher and carries a retractable lip 132 which, when the pusher is actuated, comes into contact with a lip 133 of the trigger lever 124 to pivot the trigger lever 124 and release thus the flip-flop 110. This then passes from its first to its second position to trigger the taking of information then the raising of the flip-flop 110 towards its first position and then the bell itself. As soon as the pusher is released, the control lever 125 returns to its rest position, this return taking place despite the presence of the beak 133 of the trigger lever 124 on the path of the control lever 125, thanks to the retractable nature of the beak 132.

Ces deux exemples de réalisation du dispositif de déclenchement de sonnerie présentent des inconvénients, qui sont énoncés ci-dessous.These two embodiments of the bell triggering device have drawbacks, which are set out below.

En ce qui concerne le dispositif de déclenchement selon le premier exemple de réalisation, un risque existe qu'un relâchement trop rapide du poussoir par l'utilisateur conduise le levier de déclenchement 15 à venir se bloquer contre la goupille 14 de la bascule avant que la bascule ait terminé sa remontée vers sa première position. La bascule du dispositif d'embrayage est alors empêchée de revenir à sa première position où elle permettrait au barillet de sonnerie d'actionner le(s) timbre(s) via le dispositif d'actionnement. Le mécanisme est bloqué. De plus, si au lieu d'actionner le poussoir puis de le relâcher dans un délai raisonnable l'utilisateur appuie continuellement sur le poussoir, la bascule du dispositif d'embrayage redescend dans sa deuxième position alors que la sonnerie n'a pas fini de sonner, ce qui redémarre la sonnerie et ainsi de suite jusqu'à l'épuisement de l'énergie du barillet de sonnerie. Le même phénomène peut se produire en cas d'actionnement du poussoir pendant que la sonnerie sonne.With regard to the trigger device according to the first example embodiment, there is a risk that too rapid a release of the pusher by the user will cause the trigger lever 15 to come to block against the pin 14 of the rocker before the seesaw has completed its ascent to its first position. The rocker of the clutch device is then prevented from returning to its first position where it would allow the striking barrel to actuate the gong(s) via the actuating device. The mechanism is blocked. Furthermore, if instead of activating the pusher and then releasing it within a reasonable time, the user presses the pusher continuously, the rocker of the clutch device drops back down to its second position even though the bell has not finished ringing. ringing, which restarts the ringing and so on until the energy of the ringing barrel is exhausted. The same phenomenon can occur if the push-button is pressed while the bell is ringing.

Quant au dispositif de déclenchement selon le deuxième exemple de réalisation, il peut causer le même type de dysfonctionnement que le premier exemple de réalisation lorsque le poussoir est actionné pendant que la sonnerie sonne : la sonnerie redémarre avant d'avoir fini de sonner, le phénomène se répétant jusqu'à l'épuisement de l'énergie du barillet de sonnerie. Ce type de dysfonctionnement peut aussi survenir lors d'un actionnement très lent du poussoir de déclenchement de sonnerie, au cours duquel à cause du bec rétractable 132 le dispositif de déclenchement peut se trouver dans une position d'équilibre instable.As for the triggering device according to the second exemplary embodiment, it can cause the same type of malfunction as the first exemplary embodiment when the push-button is actuated while the bell is ringing: the bell restarts before it has finished ringing, the phenomenon repeating itself until the energy of the striking barrel is exhausted. This type of malfunction can also occur during very slow actuation of the bell trigger push-piece, during which, because of the retractable spout 132, the trigger device may find itself in an unstable equilibrium position.

La présente invention vise à remédier, en partie au moins, aux inconvénients précités et propose à cette fin un mécanisme de sonnerie pour pièce d'horlogerie selon la revendication 1, des modes de réalisation particuliers étant définis dans les revendications dépendantes.The present invention aims to remedy, in part at least, the aforementioned drawbacks and to this end proposes a striking mechanism for a timepiece according to claim 1, particular embodiments being defined in the dependent claims.

D'autres caractéristiques et avantages de la présente invention apparaîtront à la lecture de la description détaillée suivante faite en référence aux dessins annexés dans lesquels :

  • la figure 1 est une vue plane de dessous d'un mécanisme de sonnerie selon l'état de la technique, dans un état embrayé ;
  • la figure 2 est une vue plane de dessus du mécanisme de sonnerie illustré à la figure 1, à l'état de repos ;
  • la figure 3 est une vue en perspective de levées, de rochets, de râteaux et de palpeurs des heures, des quarts et des minutes faisant partie du mécanisme de sonnerie illustré aux figures 1 et 2 ;
  • la figure 4 est une vue plane partielle du mécanisme de sonnerie illustré aux figures 1 et 2, montrant la coopération entre le palpeur des quarts, un premier levier de commande d'embrayage et un deuxième levier de commande d'embrayage ;
  • la figure 5 est une vue plane partielle de dessus du mécanisme de sonnerie montrant un autre exemple de réalisation d'un dispositif d'embrayage et un autre exemple de réalisation d'un dispositif de déclenchement de ce mécanisme ;
  • les figures 6 à 10 sont des vues planes partielles de dessus d'un mécanisme de sonnerie selon un premier mode de réalisation de l'invention, montrant ce mécanisme à différents instants pendant son fonctionnement normal ;
  • les figures 11 à 13 sont des vues planes partielles de dessus du mécanisme de sonnerie selon le premier mode de réalisation de l'invention, montrant ce mécanisme à différents instants après un relâchement trop rapide d'un poussoir de déclenchement de sonnerie par l'utilisateur ;
  • les figures 14 et 15 sont des vues planes de dessus d'une partie d'un mécanisme de sonnerie selon un deuxième mode de réalisation de l'invention, montrant ce mécanisme respectivement dans un état de repos et juste après son déclenchement ;
  • les figures 16 et 17 sont des vues planes de dessus de ladite partie du mécanisme de sonnerie selon le deuxième mode de réalisation, montrant ce mécanisme à deux instants différents après un relâchement trop rapide d'un poussoir de déclenchement de sonnerie par l'utilisateur ;
  • la figure 18 est une vue plane de dessus d'une partie d'un mécanisme de sonnerie selon un troisième mode de réalisation de l'invention.
Other characteristics and advantages of the present invention will appear on reading the following detailed description given with reference to the appended drawings in which:
  • the figure 1 is a plan view from below of a striking mechanism according to the state of the art, in an engaged state;
  • the figure 2 is a top plan view of the striking mechanism shown in figure 1 , in the state of rest;
  • the picture 3 is a perspective view of the levers, ratchets, rakes and feelers for the hours, quarters and minutes forming part of the striking mechanism illustrated in figure 1 and 2 ;
  • the figure 4 is a partial plan view of the striking mechanism shown in figure 1 and 2 , showing the cooperation between the shift feeler, a first clutch control lever and a second clutch control lever;
  • the figure 5 is a partial top plan view of the striking mechanism showing another embodiment of a device clutch and another embodiment of a device for triggering this mechanism;
  • them figures 6 to 10 are partial top plan views of a striking mechanism according to a first embodiment of the invention, showing this mechanism at different times during its normal operation;
  • them figures 11 to 13 are partial plan views from above of the striking mechanism according to the first embodiment of the invention, showing this mechanism at different times after the user has released a bell trigger button too quickly;
  • them figures 14 and 15 are plan views from above of part of a striking mechanism according to a second embodiment of the invention, showing this mechanism respectively in a state of rest and just after it has been triggered;
  • them figures 16 and 17 are plan views from above of said part of the striking mechanism according to the second embodiment, showing this mechanism at two different instants after a too rapid release of a striking trigger button by the user;
  • the figure 18 is a top plan view of part of a striking mechanism according to a third embodiment of the invention.

Dans la description qui suit, les termes « haut », « bas », « supérieur » et « inférieur » seront utilisés en référence à l'orientation du mécanisme telle qu'elle apparaît sur les dessins.In the following description, the terms "top", "bottom", "upper" and "lower" will be used with reference to the orientation of the mechanism as it appears in the drawings.

Les figures 1 à 5 montrent un mécanisme de sonnerie tel que décrit dans le brevet EP 3108307 B1 .The figures 1 to 5 show a striking mechanism as described in the patent EP 3108307 B1 .

Ce mécanisme de sonnerie est par exemple une répétition à minutes ou une grande sonnerie. Il est destiné à être intégré ou ajouté au mouvement d'une pièce d'horlogerie telle qu'une montre-bracelet. Ce mécanisme de sonnerie comprend, dans un bâti 1, un rouage de sonnerie 2 reliant un barillet de sonnerie 3 à un régulateur 4. Le barillet de sonnerie 3 peut être le barillet du mouvement ou un barillet dédié à la sonnerie. Il est en prise avec une roue 2a du rouage de sonnerie 2 et peut être remonté en tournant une tige de remontoir 5. La tige de remontoir 5 est de préférence la tige de remontoir du mouvement, servant à remonter également le barillet du mouvement. Le régulateur 4 est par exemple un régulateur centrifuge (régulateur de Watt). Il sert à réguler le tempo des coups à sonner. Une bascule d'embrayage 6 pivotant autour d'un axe 7 porte deux pignons 8, 9 rotatifs par rapport à la bascule 6. Le pignon 8 est rotatif autour de l'axe 7 et est en permanence en prise avec un pignon 10 solidaire d'un arbre de sonnerie 11. Le pignon 8 engrène aussi en permanence avec le pignon 9, dit pignon d'embrayage. Dans une première position, ou position embrayée, de la bascule d'embrayage 6, qui est la position illustrée à la figure 1, le pignon d'embrayage 9 engrène avec un pignon 12 qui est en prise avec le barillet de sonnerie 3 et transmet donc le mouvement du barillet de sonnerie 3 à l'arbre de sonnerie 11 via les pignons 8, 10. Dans une deuxième position, ou position débrayée, de la bascule d'embrayage 6 le pignon d'embrayage 9 n'engrène pas avec le pignon 12 et laisse donc l'arbre de sonnerie 11 libre en rotation.This striking mechanism is for example a minute repeater or a grand strike. It is intended to be integrated or added to the movement of a piece timepiece such as a wristwatch. This striking mechanism comprises, in a frame 1, a striking train 2 connecting a striking barrel 3 to a regulator 4. The striking barrel 3 can be the barrel of the movement or a barrel dedicated to striking. It engages with a wheel 2a of the striking train 2 and can be wound by turning a winding stem 5. The winding stem 5 is preferably the winding stem of the movement, also serving to wind the barrel of the movement. Regulator 4 is for example a centrifugal regulator (Watt regulator). It is used to regulate the tempo of the strokes to be sounded. A clutch rocker 6 pivoting about an axis 7 carries two pinions 8, 9 rotatable with respect to the rocker 6. The pinion 8 is rotatable about the axis 7 and is permanently in mesh with a pinion 10 integral with a ring shaft 11. The pinion 8 also meshes permanently with the pinion 9, said clutch pinion. In a first position, or engaged position, of the clutch lever 6, which is the position illustrated in figure 1 , the clutch pinion 9 meshes with a pinion 12 which is engaged with the striking barrel 3 and therefore transmits the movement of the striking barrel 3 to the striking shaft 11 via the pinions 8, 10. In a second position , or disengaged position, of the clutch rocker 6 the clutch pinion 9 does not mesh with the pinion 12 and therefore leaves the ring shaft 11 free to rotate.

La bascule d'embrayage 6 est soumise à l'action d'un ressort de rappel 13 qui tend à la faire pivoter dans le sens du débrayage. A une de ses extrémités la bascule d'embrayage 6 porte une goupille 14 (cf. figure 2) qui, lorsque le mécanisme de sonnerie est dans son état de repos, est maintenue en appui contre une première extrémité d'un levier de déclenchement de sonnerie 15 par l'action du ressort de rappel 13, maintenant ainsi la bascule d'embrayage 6 dans sa position embrayée. Dans sa position de repos, le levier de déclenchement de sonnerie 15 est maintenu en appui contre une surface 1a du bâti 1 par un ressort de rappel tout ou rien 17. Le levier de déclenchement de sonnerie 15 peut être pivoté dans le sens horaire de la figure 2 pour libérer la goupille 14 et donc la bascule d'embrayage 6 en poussant axialement un tube 15a qui agit sur une deuxième extrémité 16 du levier de déclenchement de sonnerie 15. Le tube 15a entoure la tige de remontoir 5 et est associé à une couronne-poussoir (non représentée) montée à l'extrémité de ladite tige de remontoir 5. En variante, toutefois, le levier de déclenchement de sonnerie 15 pourrait être actionnable par un poussoir indépendant de la tige de remontoir 5. A son extrémité autre que celle portant la goupille 14, la bascule d'embrayage 6 définit un bec 18 (cf. figure 1) qui coopère avec une étoile d'arrêt 19 solidaire d'une roue 2b du rouage de sonnerie 2, pour bloquer le rouage de sonnerie 2 et le barillet de sonnerie 3, lorsque la bascule d'embrayage 6 est dans sa position débrayée.The clutch rocker 6 is subjected to the action of a return spring 13 which tends to cause it to pivot in the disengagement direction. At one of its ends the clutch rocker 6 carries a pin 14 (cf. figure 2 ) which, when the striking mechanism is in its rest state, is held against a first end of a striking trigger lever 15 by the action of the return spring 13, thus maintaining the clutch rocker 6 in its engaged position. In its rest position, the bell trigger lever 15 is held against a surface 1a of the frame 1 by an all-or-nothing return spring 17. The bell trigger lever 15 can be pivoted in the clockwise direction of the figure 2 to release the pin 14 and therefore the clutch rocker 6 by pushing axially a tube 15a which acts on a second end 16 of the striking trigger lever 15. The tube 15a surrounds the winding stem 5 and is associated with a push-crown (not shown) mounted on the end of said winding stem 5. As a variant, however, the striking trigger lever 15 could be actuated by a pusher independent of the winding stem 5. At its end other than that carrying the pin 14, the rocker clutch 6 defines a spout 18 (cf. figure 1 ) which cooperates with a stop star 19 secured to a wheel 2b of the ring gear 2, to lock the ring gear 2 and the ring barrel 3, when the clutch rocker 6 is in its disengaged position.

Sur l'arbre de sonnerie 11 sont montés un rochet des heures 20, un rochet des quarts 21 et un rochet des minutes 22 (cf. figure 3). Le rochet des heures 20 est solidaire de l'arbre de sonnerie 11. Les rochets des quarts 21 et des minutes 22 sont, eux, libres en rotation par rapport à l'arbre de sonnerie 11. Les dentures des rochets 20, 21, 22 servent à actionner des levées de sonnerie 23, 24, 25, 26 qui elles-mêmes actionnent des marteaux 27, 28 qui frappent des timbres 29, 30 pour les exciter. Les levées comprennent une levée des heures 23, une première levée des quarts 24 coaxiale à la levée des heures 23, une levée des minutes 25 et une deuxième levée des quarts 26 coaxiale à la levée des minutes 25. Chaque groupe de levées 23-24, respectivement 25-26, est agencé pour actionner un marteau respectif 27, 28, lequel est agencé pour frapper un timbre respectif 29, 30, les deux timbres 29, 30 produisant des sons différents.On the striking shaft 11 are mounted a ratchet for hours 20, a ratchet for quarters 21 and a ratchet for minutes 22 (cf. picture 3 ). The hour ratchet 20 is integral with the striking shaft 11. The quarter 21 and minute 22 ratchets are free to rotate with respect to the striking shaft 11. The teeth of the ratchets 20, 21, 22 are used to actuate bell lifts 23, 24, 25, 26 which themselves actuate hammers 27, 28 which strike gongs 29, 30 to excite them. The lifts include a 23-hour lift, a 24-hour first lift coaxial with the 23-hour lift, a 25-minute lift, and a 26-minute second lift coaxial with the 25-minute lift. Each group of lifts 23-24 , respectively 25-26, is arranged to actuate a respective hammer 27, 28, which is arranged to strike a respective stamp 29, 30, the two stamps 29, 30 producing different sounds.

Le rochet des heures 20 comprend une denture à 12 dents pour actionner la levée des heures 23 afin que celle-ci actionne le marteau 27, dit marteau des heures. Le rochet des minutes 22 comprend une denture à 14 dents pour actionner la levée des minutes 25 afin que celle-ci actionne le marteau 28, dit marteau des minutes. Le rochet des quarts 21 comprend deux dentures à 3 dents pour actionner les deux levées des quarts 24, 26, respectivement, afin que celles-ci actionnent alternativement le marteau des heures 27 et le marteau des minutes 28.The hour ratchet 20 comprises a set of teeth with 12 teeth to actuate the hour lever 23 so that the latter actuates the hammer 27, called the hour hammer. The minute ratchet 22 comprises a 14-tooth toothing to actuate the minute lifter 25 so that it actuates the hammer 28, called the minute hammer. The quarter ratchet 21 comprises two toothings with 3 teeth to actuate the two lifts of the quarters 24, 26, respectively, so that these alternately operate the 27 hour hammer and the 28 minute hammer.

Les rochets des heures, des quarts et des minutes 20, 21, 22 sont solidaires respectivement de pignons des heures, des quarts et des minutes, dont seuls les pignons des quarts 32 et des minutes 33 sont visibles à la figure 3. Le pignon des heures est en prise avec une denture d'un râteau des heures 34. Le pignon des quarts 32 est en prise avec une denture d'un râteau des quarts 35. Le pignon des minutes 33 est en prise avec une denture d'un râteau des minutes 36. Les râteaux des quarts et des minutes 35, 36 pivotent autour d'un même axe 37. Le râteau des heures 34, lui, pivote de préférence autour d'un axe 38 distinct de l'axe de pivotement 37 des râteaux des quarts et des minutes 35, 36, mais pourrait en variante pivoter autour du même axe de pivotement 37 que les râteaux des quarts et des minutes 35, 36.The hour, quarter and minute ratchets 20, 21, 22 are secured respectively to the hour, quarter and minute pinions, of which only the quarter 32 and minute 33 pinions are visible at the picture 3 . The hour pinion is meshed with a toothing of a 34 hour rake. The quarter pinion 32 is meshed with a toothing of a quarter rake 35. The minute pinion 33 is meshed with a toothing of a minute rake 36. The quarter and minute rakes 35, 36 pivot around the same axis 37. The hours rake 34 preferably pivots around an axis 38 separate from the pivot axis 37 quarter and minute rakes 35, 36, but could alternatively pivot about the same pivot axis 37 as the quarter and minute rakes 35, 36.

Un palpeur des heures 39 est monté pivotant autour de l'axe de pivotement 38 du râteau des heures 34. Le bec 40 du palpeur des heures 39 est agencé pour coopérer avec une came des heures 41 (visible sur la figure 1). Une goupille (non visible sur les dessins) portée par le palpeur des heures 39 et engagée dans une ouverture du râteau des heures 34 définit une plage de déplacement angulaire relatif entre le palpeur des heures 39 et le râteau des heures 34.A feeler for the hours 39 is pivotally mounted around the pivot axis 38 of the rake for the hours 34. The beak 40 of the feeler for the hours 39 is arranged to cooperate with a cam for the hours 41 (visible on the figure 1 ). A pin (not visible in the drawings) carried by the hour feeler 39 and engaged in an opening of the hour rake 34 defines a range of relative angular displacement between the hour feeler 39 and the hour rake 34.

Un palpeur des quarts 44 est monté pivotant autour de l'axe de pivotement 37 du râteau des quarts 35 et du râteau des minutes 36. Le bec 45 du palpeur des quarts 44 est agencé pour coopérer avec une came des quarts 46 (cf. figure 4). Une goupille 47 portée par le râteau des quarts 35 et engagée dans une ouverture 48 du palpeur des quarts 44 définit une plage de déplacement angulaire relatif entre le palpeur des quarts 44 et le râteau des quarts 35.A quarters feeler 44 is pivotally mounted around the pivot axis 37 of the quarters rake 35 and of the minutes rake 36. The beak 45 of the quarters feeler 44 is arranged to cooperate with a quarters cam 46 (cf. figure 4 ). A pin 47 carried by the quarters rake 35 and engaged in an opening 48 of the quarters feeler 44 defines a range of relative angular displacement between the quarters feeler 44 and the quarters rake 35.

Un palpeur des minutes 49 est solidaire du râteau des minutes 36 et de préférence en une seule pièce avec le râteau des minutes 36 (cf. figure 3). Le bec 50 du palpeur des minutes 49 est agencé pour coopérer avec une came des minutes 51 (cf. figure 4).A minutes feeler 49 is integral with the minutes rack 36 and preferably in one piece with the minutes rack 36 (cf. picture 3 ). the Beak 50 of the minutes feeler 49 is arranged to cooperate with a minutes cam 51 (cf. figure 4 ).

Les cames des heures, des quarts et des minutes 41, 46, 51 sont entraînées par le mouvement de manière conventionnelle. Les cames des quarts et des minutes 46, 51 pivotent autour du même axe qui peut être celui de la chaussée du mouvement. La came des heures 41, elle, est de préférence non coaxiale avec les cames des quarts et des minutes 46, 51.The hour, quarter and minute cams 41, 46, 51 are driven by the movement in a conventional manner. The quarter and minute cams 46, 51 pivot around the same axis which may be that of the movement roadway. The hour cam 41 is preferably not coaxial with the quarter and minute cams 46, 51.

Chacun des râteaux des heures, des quarts et des minutes 34, 35, 36 est soumis à l'action d'un ressort de rappel 52, 53, 54 (cf. figure 3) tendant à le faire tourner dans le sens qui rapproche le bec du palpeur correspondant de la came correspondante.Each of the hour, quarter and minute racks 34, 35, 36 is subjected to the action of a return spring 52, 53, 54 (cf. picture 3 ) tending to rotate it in the direction that brings the beak of the corresponding feeler closer to the corresponding cam.

Le palpeur des quarts 44 comprend à son extrémité opposée à celle définissant le bec des quarts 45 un bec 63 agencé pour actionner un premier levier de commande d'embrayage 64 (cf. figure 4). Le premier levier de commande d'embrayage 64 est monté sur le râteau des quarts 35 et soumis à l'action d'un ressort de rappel 65 qui le maintient en contact avec le bec 63 du palpeur des quarts 44. Le premier levier de commande d'embrayage 64 est agencé pour actionner un deuxième levier de commande d'embrayage 66 monté sur le bâti 1. Le deuxième levier de commande d'embrayage 66 définit une fourchette 67 qui reçoit la goupille 14 portée par la bascule d'embrayage 6.The shift feeler 44 comprises at its end opposite to that defining the shift spout 45 a spout 63 arranged to actuate a first clutch control lever 64 (cf. figure 4 ). The first clutch control lever 64 is mounted on the shift rack 35 and subjected to the action of a return spring 65 which keeps it in contact with the beak 63 of the shift feeler 44. The first control lever clutch lever 64 is arranged to actuate a second clutch control lever 66 mounted on the frame 1. The second clutch control lever 66 defines a fork 67 which receives the pin 14 carried by the clutch lever 6.

Dans une variante, représentée à la figure 5, le dispositif d'embrayage n'est plus sous la forme d'une bascule d'embrayage 6 portant des pignons 8, 9 mais sous la forme d'une bascule 110 et d'un engrenage différentiel 111 commandé par cette bascule 110. Dans encore une autre variante (non représentée), le dispositif d'embrayage comprend une bascule, un mobile d'embrayage vertical et un organe de commande à ressort agissant sur le mobile d'embrayage vertical et commandé lui-même par la bascule.In a variant, shown in figure 5 , the clutch device is no longer in the form of a clutch rocker 6 carrying pinions 8, 9 but in the form of a rocker 110 and a differential gear 111 controlled by this rocker 110. In yet another variant (not shown), the clutch device comprises a rocker, a vertical clutch mobile and a spring control member acting on the vertical clutch mobile and itself controlled by the rocker.

Comme l'illustre la figure 5, le levier de déclenchement de sonnerie 15 peut être remplacé par un levier de déclenchement 124 et un levier de commande 125 pivotant en des points respectifs 126, 127 qui sont fixes par rapport au bâti 1. Le levier de déclenchement 124 coopère avec la goupille, désignée ici par le repère 121, portée par la bascule du dispositif d'embrayage pour la retenir, et comprend un bec 133. Le levier de déclenchement 124 possède son propre ressort de rappel 128 et sa propre butée 130 qui définit sa position de repos. Le levier de commande 125 est actionnable par l'utilisateur au moyen du poussoir de déclenchement de sonnerie (couronne-poussoir ou poussoir indépendant) et est soumis à l'action d'un ressort de rappel 129 de type tout ou rien. Le levier de commande 125 porte un bec rétractable 132.As illustrated by figure 5 , the bell trigger lever 15 can be replaced by a trigger lever 124 and a control lever 125 pivoting at respective points 126, 127 which are fixed with respect to the frame 1. The trigger lever 124 cooperates with the pin, designated here by the reference 121, carried by the rocker of the clutch device to retain it, and comprises a beak 133. The trigger lever 124 has its own return spring 128 and its own stop 130 which defines its rest position. The control lever 125 can be actuated by the user by means of the ringing trigger button (push-crown or independent button) and is subjected to the action of a return spring 129 of the all or nothing type. The control lever 125 carries a retractable spout 132.

Dans une première phase du mouvement du levier de commande 125, son bec 132 coopère avec le bec 133 pour faire pivoter le levier de déclenchement 124 afin de libérer la bascule du dispositif d'embrayage. Dans une deuxième phase du mouvement du levier de commande 125, le bec 132 perd le contact avec le levier 124 qui peut revenir dans sa position de repos sous l'action de son ressort de rappel 128. Lorsque le poussoir est relâché, le levier de commande 125 redescend sous l'action de son ressort de rappel 129 et revient à sa position de repos, son bec 132 se rétractant lorsqu'il arrive au contact du levier de déclenchement 124.In a first phase of the movement of the control lever 125, its beak 132 cooperates with the beak 133 to cause the release lever 124 to pivot in order to release the latch of the clutch device. In a second phase of the movement of the control lever 125, the beak 132 loses contact with the lever 124 which can return to its rest position under the action of its return spring 128. When the pusher is released, the control 125 descends under the action of its return spring 129 and returns to its rest position, its beak 132 retracting when it comes into contact with the trigger lever 124.

Pour plus de détails sur la structure du mécanisme de sonnerie décrit ci-dessus et pour une explication de son fonctionnement on pourra se reporter au brevet précité EP 3108307 B1 .For more details on the structure of the striking mechanism described above and for an explanation of its operation, reference may be made to the aforementioned patent EP 3108307 B1 .

Les deux variantes de dispositif de déclenchement de sonnerie 15 et 124, 125 représentées aux figures 2 et 5 présentent les inconvénients énoncés dans la partie introductive de la présente demande : elles ne peuvent pas empêcher des dysfonctionnements du mécanisme de sonnerie dans certains cas de manipulation irrégulière du poussoir par l'utilisateur.The two variants of bell triggering device 15 and 124, 125 shown in figure 2 and 5 have the drawbacks set out in the introductory part of the present application: they cannot prevent malfunctions of the striking mechanism in certain cases of irregular manipulation of the pusher by the user.

Le mécanisme de sonnerie selon l'invention est identique à celui illustré aux figures 1 à 4 à l'exception de son dispositif de déclenchement. Une autre différence, optionnelle, est que dans la présente invention le palpeur des quarts 44 et le premier levier de commande d'embrayage 64 sont fusionnés et sont solidaires du râteau des quarts 35, ceci afin de simplifier le mécanisme tout en assurant une bonne synchronisation entre le contact du bec 45 avec la came des quarts 46 et l'actionnement du second levier de commande d'embrayage 66 par le palpeur des quarts 44. Le premier levier de commande d'embrayage 64 devient ainsi un bec du palpeur des quarts 44 et du râteau des quarts 35, qui sera désigné dans la suite par le même repère, 64.The striking mechanism according to the invention is identical to that illustrated in figures 1 to 4 except for its trigger device. Another optional difference is that in the present invention the shift feeler 44 and the first clutch control lever 64 are merged and are integral with the shift rake 35, this in order to simplify the mechanism while ensuring good synchronization between the contact of the beak 45 with the shift cam 46 and the actuation of the second clutch control lever 66 by the shift feeler 44. The first clutch control lever 64 thus becomes a beak of the shift feeler 44 and of the shift rake 35, which will be designated hereinafter by the same reference , 64.

Un premier mode de réalisation du dispositif de déclenchement du mécanisme de sonnerie selon l'invention est représenté à la figure 6. Il comprend un organe principal 200, un organe auxiliaire 201 et un organe de sécurité 202.A first embodiment of the device for triggering the striking mechanism according to the invention is shown in figure 6 . It comprises a main body 200, an auxiliary body 201 and a safety body 202.

L'organe principal 200 est un levier pivoté en un point 203 fixe par rapport au bâti 1 du mécanisme de sonnerie et est actionnable manuellement par l'intermédiaire d'un poussoir de déclenchement de sonnerie ou autre organe manuel tel qu'un verrou. Un ressort de rappel 204, de préférence de type tout ou rien, tend à maintenir l'organe principal 200 contre une butée 205 qui définit sa position de repos. L'organe principal 200 porte, à son extrémité opposée à celle sur laquelle agit le poussoir, un bec rétractable 206 constitué de deux parties concourantes supérieure 206a et inférieure 206b et pivoté en un point 206c sur l'organe principal 200. L'organe principal 200 porte en outre une butée 207 (visible à la figure 13), un ressort de rappel 208 qui tend à maintenir le bec rétractable 206 contre la butée 207 et une goupille d'actionnement 209. Dans l'exemple représenté, la butée 207 est constituée par la paroi d'un trou oblong dans lequel est engagée une goupille 206d portée par le bec rétractable 206.The main member 200 is a lever pivoted at a fixed point 203 with respect to the frame 1 of the striking mechanism and is manually operable via a striking trigger button or other manual member such as a lock. A return spring 204, preferably of the on/off type, tends to hold the main member 200 against a stop 205 which defines its rest position. The main body 200 carries, at its end opposite that on which the pusher acts, a retractable spout 206 consisting of two upper 206a and lower 206b concurrent parts and pivoted at a point 206c on the main body 200. The main body 200 further carries an abutment 207 (visible at figure 13 ), a return spring 208 which tends to hold the retractable spout 206 against the abutment 207 and an actuating pin 209. In the example shown, the abutment 207 is constituted by the wall of an oblong hole in which is engaged a pin 206d carried by the retractable spout 206.

L'organe auxiliaire 201 est un levier pivoté en un point 210 fixe par rapport au bâti 1 et comprend un bec 211 agencé pour coopérer avec la goupille d'actionnement 209. A cet organe auxiliaire 201 sont associés, comme pour l'organe principal 200 et le bec rétractable 206, un ressort de rappel 212 et une butée 213.The auxiliary member 201 is a lever pivoted at a point 210 fixed relative to the frame 1 and comprises a beak 211 arranged to cooperate with the actuating pin 209. With this auxiliary member 201 are associated, as for the main member 200 and the retractable spout 206, a return spring 212 and a stopper 213.

L'organe de sécurité 202 est un levier pivoté en un point 214 fixe par rapport au bâti 1 et possède lui aussi son ressort de rappel 215 et sa butée 216. L'organe de sécurité 202 comprend un bec 217.The safety device 202 is a lever pivoted at a point 214 fixed relative to the frame 1 and also has its return spring 215 and its stop 216. The safety device 202 comprises a beak 217.

Lorsque le mécanisme de sonnerie est au repos (figure 6), l'organe principal 200 et l'organe auxiliaire 201 sont chacun en appui contre leur butée 205, 213 et l'organe de sécurité 202 est maintenu hors de contact avec sa butée 216, dans une position haute, par le râteau des quarts 35. De plus, la partie supérieure 206a du bec rétractable 206 est en contact avec une face d'extrémité inclinée 67a de la dent supérieure de la fourchette 67 du levier de commande d'embrayage 66 pour retenir cette fourchette 67, donc la goupille 14 et la bascule 6, 110 du dispositif d'embrayage, contre l'action du ressort de rappel de ladite bascule. Un léger jeu existe entre la goupille 14 et l'organe auxiliaire 201, situé sous la goupille 14. La bascule 6, 110 est dans sa première position où le dispositif d'embrayage est embrayé. Le barillet de sonnerie 3, le rouage de sonnerie 2, les rochets 20, 21, 22 et les râteaux 34, 35, 36 sont immobilisés par un appui du râteau des heures 34 contre une butée.When the striking mechanism is at rest ( figure 6 ), the main member 200 and the auxiliary member 201 are each bearing against their abutment 205, 213 and the safety member 202 is kept out of contact with its abutment 216, in a high position, by the quarters rake 35. In addition, the upper part 206a of the retractable spout 206 is in contact with an inclined end face 67a of the upper tooth of the fork 67 of the clutch control lever 66 to retain this fork 67, therefore the pin 14 and rocker 6, 110 of the clutch device, against the action of the return spring of said rocker. A slight play exists between pin 14 and auxiliary member 201, located under pin 14. Rocker 6, 110 is in its first position where the clutch device is engaged. The striking barrel 3, the striking gear train 2, the ratchets 20, 21, 22 and the rakes 34, 35, 36 are immobilized by pressing the hours rake 34 against a stop.

En actionnant le poussoir de déclenchement de sonnerie (cf. figure 7), l'utilisateur fait pivoter l'organe principal 200 dans le sens horaire des figures 6 et 7, lequel organe principal 200 s'écarte donc de la fourchette 67. L'organe auxiliaire 201 est, lui, pivoté dans le sens antihoraire par la goupille d'actionnement 209 portée par l'organe principal 200 et s'écarte ainsi de la trajectoire de la goupille 14. Plus rien ne peut retenir la bascule 6, 110 du dispositif d'embrayage qui chute jusqu'à sa deuxième position (cf. figure 8) où le dispositif d'embrayage est débrayé et le barillet de sonnerie 3 est découplé de l'arbre de sonnerie 11. La phase de prise d'information commence, au cours de laquelle les palpeurs des heures 39, des quarts 44 et des minutes 49 vont prendre l'information du nombre de coups à sonner sur les cames des heures 41, des quarts 46 et des minutes 51. Pendant cette phase, le râteau des quarts 35 libère l'organe de sécurité 202 qui vient s'appuyer dans une position basse contre sa butée 216 (cf. figure 9). Le râteau des quarts 35 fait aussi remonter le levier de commande d'embrayage 66 et sa fourchette 67 dans sa position initiale par l'intermédiaire de son bec 64. Pendant cette remontée, le levier de commande d'embrayage 66 relève un court instant l'organe de sécurité 202 et le laisse ensuite retomber contre sa butée 216. Lorsque le levier de commande d'embrayage 66 a retrouvé sa position initiale, haute, le bec 217 de l'organe de sécurité 202 est engagé dans une échancrure 218 du levier de commande d'embrayage 66 et est presque en contact avec un bec 219 de ce dernier. Le dispositif d'embrayage est dans son état embrayé et le barillet de sonnerie 3 commence à faire pivoter les râteaux des heures 34, des quarts 35 et des minutes 36 dans l'autre sens, en s'opposant à la force de leurs ressorts de rappel, pour faire retentir la sonnerie. Dès que l'utilisateur relâche le poussoir, l'organe principal 200 et l'organe auxiliaire 201 retrouvent leur position de repos (cf. figure 10). A la fin de la sonnerie, le râteau des quarts 35 remet l'organe de sécurité 202 dans sa position haute (cf. figure 6).By pressing the bell trigger button (cf. figure 7 ), the user rotates the main body 200 clockwise figures 6 and 7 , which main member 200 therefore deviates from the fork 67. The auxiliary member 201 is itself pivoted counterclockwise by the actuating pin 209 carried by the main member 200 and thus deviates from the trajectory of the pin 14. Nothing can retain the rocker 6, 110 of the clutch device which drops to its second position (cf. figure 8 ) where the clutch device is disengaged and the striking barrel 3 is decoupled from the striking shaft 11. The information acquisition phase begins, during which the feelers for hours 39, quarters 44 and minutes 49 will take the information of the number of strokes to ring on the cams for hours 41, quarters 46 and minutes 51. During this phase, the quarters rake 35 releases the safety device 202 which rests in low position against his stop 216 (cf. figure 9 ). The shift rake 35 also raises the clutch control lever 66 and its fork 67 to its initial position via its beak 64. During this ascent, the clutch control lever 66 briefly raises the safety member 202 and then lets it fall against its stop 216. When the clutch control lever 66 has returned to its initial, high position, the beak 217 of the safety member 202 is engaged in a notch 218 of the lever clutch control 66 and is almost in contact with a beak 219 of the latter. The clutch device is in its engaged state and the 3 striking barrel begins to rotate the 34 hour, 35 quarter and 36 minute rakes in the other direction, opposing the force of their springs of reminder, to ring the bell. As soon as the user releases the pusher, the main member 200 and the auxiliary member 201 return to their rest position (cf. figure 10 ). At the end of the ringing, the shift rack 35 puts the safety device 202 back in its high position (cf. figure 6 ).

Tant que le bec 64 est en contact avec le levier de commande d'embrayage 66, il maintient ce dernier en position. A un certain moment pendant la sonnerie, après la sonnerie des quarts, le bec 64 perd le contact avec le levier de commande d'embrayage 66. Si l'utilisateur a relâché le poussoir, la partie supérieure 206a du bec rétractable 206 retient la fourchette 67 après la perte de contact entre le bec 64 et le levier de commande d'embrayage 66, ce qui permet à la sonnerie de continuer à sonner. Si l'utilisateur n'a toujours pas relâché le poussoir, c'est l'organe de sécurité 202 qui retient le levier de commande d'embrayage 66 après la perte de contact entre le bec 64 et le levier de commande d'embrayage 66, en coopérant avec le bec 219. L'utilisateur peut donc prolonger son appui sur le poussoir autant qu'il le souhaite, le mécanisme de sonnerie ne sera pas perturbé. Dès que l'utilisateur relâche le poussoir tandis que l'organe de sécurité 202 retient le levier de commande d'embrayage 66, l'organe principal 200 revient dans sa position de repos et, en coopérant avec la face d'extrémité inclinée 67a de la dent supérieure de la fourchette 67, lève légèrement la fourchette 67 donc la goupille 14 ce qui permet à l'organe auxiliaire 201 de reprendre sa place sous la goupille 14.As long as the beak 64 is in contact with the clutch control lever 66, it maintains the latter in position. At some point during the ringing, after the quarter ringing, the beak 64 loses contact with the clutch control lever 66. If the user has released the pusher, the upper part 206a of the retractable beak 206 retains the fork 67 after the contact between the beak 64 and the clutch control lever 66 has been lost, allowing the bell to continue ringing. If the user has still not released the pusher, it is the safety device 202 which retains the clutch control lever 66 after loss of contact between the beak 64 and the clutch control lever 66 , by cooperating with the beak 219. The user can therefore extend his pressure on the pusher as much as he wishes, the ringing mechanism will not be disturbed. As soon as the user releases the push-button while the safety member 202 retains the clutch control lever 66, the main member 200 returns to its rest position and, by cooperating with the face of the inclined end 67a of the upper tooth of the fork 67, slightly lifts the fork 67 and therefore the pin 14 which allows the auxiliary member 201 to return to its place under the pin 14.

Si l'utilisateur actionne le poussoir alors que le mécanisme de sonnerie est dans son état de repos (figure 6), pour déclencher la sonnerie, mais relâche très rapidement le poussoir, on se retrouve dans la situation illustrée à la figure 11 où l'organe principal 200 retombe pendant la remontée du levier de commande d'embrayage 66 et de la bascule 6, 110 du dispositif d'embrayage. Le bec rétractable 206 se rétracte contre l'action de son ressort de rappel 208 lorsque la fourchette 67 entre en contact avec la partie inférieure 206b du bec rétractable 206 pendant sa remontée (cf. figure 12). Le bec rétractable 206 ne fait ainsi pas obstacle au retour de la bascule 6, 110 du dispositif d'embrayage dans sa première position. Le couple résistant exercé par l'organe auxiliaire 201 sur la bascule 6, 110 par l'intermédiaire de la goupille 14 est insuffisant pour empêcher la remontée de la bascule 6, 110. Le ressort de rappel 212 de l'organe auxiliaire 201, comme le ressort de rappel 208 du bec rétractable 206, présente en effet une faible raideur. Lorsque la bascule 6, 110 se retrouve dans sa première position, l'organe auxiliaire 201 peut reprendre sa position de repos, sous la goupille 14 (cf. figure 13). La bascule 6, 110 est alors retenue dans sa première position par la fourchette 67 elle-même retenue par le contact entre le bec 64 et le levier de commande d'embrayage 66 jusqu'à ce que le bec 64 perde le contact avec le levier de commande d'embrayage 66 (après la sonnerie des quarts), moment à partir duquel l'organe auxiliaire 201 prend le relais en servant de butée à la goupille 14. La bascule 6, 110 du dispositif d'embrayage est ainsi retenue par l'organe auxiliaire 201 jusqu'à la fin de la sonnerie et même jusqu'au prochain déclenchement de la sonnerie après quoi l'organe principal 200 pourra retrouver sa position de repos avec son bec 206 dans sa position de repos, non rétractée, où il retient la fourchette 67 (cf. figure 6).If the user presses the pusher while the striking mechanism is in its idle state ( figure 6 ), to trigger the chime, but very quickly releases the push-piece, we find ourselves in the situation illustrated in figure 11 where the main body 200 falls during the ascent of the clutch control lever 66 and the rocker 6, 110 of the clutch device. The retractable spout 206 retracts against the action of its return spring 208 when the fork 67 comes into contact with the lower part 206b of the retractable spout 206 during its ascent (cf. figure 12 ). The retractable spout 206 thus does not obstruct the return of the lever 6, 110 of the clutch device to its first position. The resisting torque exerted by the auxiliary member 201 on the lever 6, 110 via the pin 14 is insufficient to prevent the raising of the lever 6, 110. The return spring 212 of the auxiliary member 201, as the return spring 208 of the retractable spout 206, in fact has a low stiffness. When rocker 6, 110 is in its first position, auxiliary member 201 can return to its rest position, under pin 14 (cf. figure 13 ). The rocker 6, 110 is then retained in its first position by the fork 67 itself retained by the contact between the beak 64 and the clutch control lever 66 until the beak 64 loses contact with the lever clutch control 66 (after the bell of the quarters), moment from which the auxiliary member 201 takes over by serving as a stop for the pin 14. The rocker 6, 110 of the clutch device is thus retained by the auxiliary member 201 until the end of the ringing and even until the next triggering of the ringing after which the main member 200 can return to its rest position with its beak 206 in its rest position, not retracted, where it retains fork 67 (cf. figure 6 ).

Si l'utilisateur actionne le poussoir de déclenchement de sonnerie pendant que la sonnerie retentit, l'organe principal 200 pivote et fait pivoter l'organe auxiliaire 201 mais le levier de commande d'embrayage 66 est retenu par l'organe de sécurité 202, ce qui maintient la bascule 6, 110 du dispositif d'embrayage dans sa première position. Aucun dysfonctionnement ne se produit. Dès le relâchement du poussoir, l'organe principal 200 revient dans sa position de repos et, en coopérant avec la face d'extrémité inclinée 67a de la dent supérieure de la fourchette 67, lève légèrement la fourchette 67 donc la goupille 14 ce qui permet à l'organe auxiliaire 201 de reprendre sa place sous la goupille 14.If the user activates the bell trigger button while the bell is ringing, the main member 200 pivots and makes the auxiliary member 201 pivot, but the clutch control lever 66 is retained by the safety member 202, which maintains the rocker 6, 110 of the clutch device in its first position. No malfunction occurs. As soon as the pusher is released, the main member 200 returns to its rest position and, by cooperating with the inclined end face 67a of the upper tooth of the fork 67, slightly lifts the fork 67 and therefore the pin 14 which allows the auxiliary member 201 to resume its place under the pin 14.

Le mécanisme de sonnerie ne dysfonctionne pas non plus en cas d'actionnement très lent du poussoir de déclenchement de sonnerie puisqu'aucune position d'équilibre instable ne peut être obtenue grâce notamment à la liaison rigide (sans bec rétractable) entre l'organe principal 200 et l'organe auxiliaire 201.The striking mechanism does not malfunction either in the event of very slow actuation of the striking trigger pusher since no position of unstable equilibrium can be obtained thanks in particular to the rigid connection (without retractable nose) between the main organ 200 and the auxiliary member 201.

Les figures 14 à 17 montrent un deuxième mode de réalisation du dispositif de déclenchement selon l'invention. Dans ce deuxième mode de réalisation, le bec rétractable 206 de l'organe principal 200 coopère avec la goupille 14 plutôt qu'avec la fourchette 67 (non représentée sur les figures 14 à 17). De plus, l'organe auxiliaire 201 est coaxial avec l'organe principal 200 et son ressort de rappel 212 et sa butée 213 sont portés par l'organe principal 200.The figures 14 to 17 show a second embodiment of the trigger device according to the invention. In this second embodiment, the retractable spout 206 of the main body 200 cooperates with the pin 14 rather than with the fork 67 (not represented on the figures 14 to 17 ). In addition, the auxiliary member 201 is coaxial with the main member 200 and its return spring 212 and its stop 213 are carried by the main member 200.

A l'état de repos du mécanisme de sonnerie (figure 14), la goupille 14 est en appui contre une face supérieure inclinée du bec rétractable 206 et l'organe auxiliaire 201 est situé sous la goupille 14 mais avec un léger jeu entre lui et la goupille 14. Comme le montre la figure 15, lors de l'actionnement de l'organe principal 200 par le poussoir de déclenchement de sonnerie, l'organe principal 200 et l'organe auxiliaire 201 pivotent de manière solidaire dans le sens horaire en un point 220 et s'écartent ainsi tous les deux de la goupille 14, permettant à la bascule 6 du dispositif d'embrayage de chuter de sa première position à sa deuxième position où le barillet de sonnerie 3 est découplé de l'arbre de sonnerie 11.In the idle state of the striking mechanism ( figure 14 ), the pin 14 bears against an inclined upper face of the retractable spout 206 and the auxiliary member 201 is located under the pin 14 but with a slight play between it and the pin 14. As shown in the figure 15 , when the main member 200 is actuated by the bell trigger pusher, the main member 200 and the auxiliary member 201 pivot integrally clockwise at a point 220 and thus move apart every two of the pin 14, allowing the rocker 6 of the clutch device to drop from its first position to its second position where the striking barrel 3 is decoupled from the striking shaft 11.

Si le poussoir de déclenchement de sonnerie est relâché après le retour de la bascule dans sa première position, l'organe principal 200 et l'organe auxiliaire 201 reprennent leur place sous la goupille 14, comme illustré à la figure 14.If the bell trigger button is released after the rocker has returned to its first position, the main member 200 and the auxiliary member 201 return to their place under the pin 14, as illustrated in figure 14 .

Si au contraire le poussoir de déclenchement de sonnerie est relâché avant que la bascule 6 du dispositif d'embrayage ait terminé sa remontée (cf. figure 16), l'organe principal 200 retombe dans sa position de repos, contre sa butée. Le bec rétractable 206 de l'organe principal 200 se trouve alors au-dessus de la goupille 14 mais se rétracte au contact de la goupille 14, permettant à la bascule 6 de terminer sa remontée. L'organe auxiliaire 201, lui, recule par rapport à l'organe principal 200 au contact de la goupille 14 et se replace sous la goupille 14 à la fin du mouvement de la bascule 6 (cf. figure 17). Le couple résistant exercé par l'organe auxiliaire 201 sur la bascule 6 par l'intermédiaire de la goupille 14 est insuffisant pour empêcher la remontée de la bascule 6. Le ressort de rappel 212 de l'organe auxiliaire 201, comme le ressort de rappel 208 du bec rétractable 206, présente en effet une faible raideur. L'organe auxiliaire 201 retient la goupille 14 dès que le bec 64 du râteau des quarts 35 perd le contact avec le levier de commande d'embrayage 66 (après la sonnerie des quarts), et ceci jusqu'à la fin de la sonnerie et même jusqu'au prochain déclenchement de la sonnerie après quoi l'organe principal 200 pourra retrouver sa position de repos avec son bec 206 dans sa position de repos, non rétractée, où il retient la goupille 14 (cf. figure 14).If, on the contrary, the bell trigger button is released before rocker 6 of the clutch device has finished its ascent (cf. figure 16 ), the main body 200 falls back into its rest position, against its abutment. The retractable spout 206 of the main body 200 is then above the pin 14 but retracts in contact with the pin 14, allowing the rocker 6 to complete its ascent. The auxiliary member 201 moves back relative to the main member 200 in contact with the pin 14 and is replaced under the pin 14 at the end of the movement of the rocker 6 (cf. figure 17 ). The resistant torque exerted by the auxiliary member 201 on the rocker 6 via the pin 14 is insufficient to prevent the rise of the rocker 6. The return spring 212 of the auxiliary member 201, like the return spring 208 of the retractable spout 206, has indeed a low stiffness. The auxiliary member 201 retains the pin 14 as soon as the beak 64 of the quarters rake 35 loses contact with the clutch control lever 66 (after the quarters ringing), and this until the end of the ringing and even until the next triggering of the ringing after which the main body 200 can return to its rest position with its beak 206 in its rest position, not retracted, where it retains the pin 14 (cf. figure 14 ).

L'organe de sécurité 202, non représenté sur les figures 14 à 17, intervient en cas d'actionnement continu du poussoir de déclenchement de sonnerie ou d'actionnement du poussoir de déclenchement de sonnerie pendant que la sonnerie retentit, comme dans le premier mode de réalisation. L'inclinaison de la face supérieure du bec rétractable 206 permet à ce dernier de lever légèrement la goupille 14, pour que l'organe auxiliaire 201 puisse reprendre sa place sous la goupille 14, après le relâchement du poussoir.The safety device 202, not represented on the figures 14 to 17 , intervenes in the event of continuous actuation of the bell trigger push-button or of actuation of the bell trigger push-button while the bell is ringing, as in the first embodiment. The inclination of the upper face of the retractable spout 206 allows the latter to slightly lift the pin 14, so that the auxiliary member 201 can resume its place under the pin 14, after the release of the pusher.

Dans une variante du deuxième mode de réalisation (non représentée), l'organe auxiliaire 201 est monté pivotant sur l'organe principal 200 au lieu d'être coaxial avec l'organe principal 200.In a variant of the second embodiment (not shown), the auxiliary member 201 is pivotally mounted on the main member 200 instead of being coaxial with the main member 200.

La figure 18 montre un troisième mode de réalisation du dispositif de déclenchement selon l'invention. Le dispositif de déclenchement selon ce troisième mode de réalisation est fonctionnellement similaire à celui du deuxième mode de réalisation mais l'organe principal 200, avec son bec rétractable 206, et l'organe auxiliaire 201 font partie d'une même pièce monolithique pivotée en un point 221. Le bec rétractable 206 est couplé au corps de l'organe principal 200 par un premier guidage flexible 222 et l'organe auxiliaire 201 est couplé au corps de l'organe principal 200 par un deuxième guidage flexible 223. Dans l'exemple représenté, le premier guidage flexible 222 est à lames croisées et guide le bec rétractable 206 essentiellement en rotation par rapport au corps de l'organe principal 200 tandis que le deuxième guidage flexible 223 est à cols circulaires et guide l'organe auxiliaire 201 essentiellement en translation par rapport au corps de l'organe principal 200. Les guidages flexibles 222, 223 font également office de ressorts de rappel pour le bec rétractable 206 et l'organe auxiliaire 201.The figure 18 shows a third embodiment of the trigger device according to the invention. The trigger device according to this third embodiment is functionally similar to that of the second embodiment, but the main member 200, with its retractable spout 206, and the auxiliary member 201 are part of the same monolithic part pivoted in one point 221. The retractable spout 206 is coupled to the body of the main member 200 by a first flexible guide 222 and the auxiliary member 201 is coupled to the body of the main member 200 by a second flexible guide 223. In the example shown, the first flexible guide 222 has crossed blades and guides the retractable spout 206 essentially in rotation relative to the body of the main member 200 while the second flexible guide 223 has circular necks and guides the auxiliary member 201 essentially in translation relative to the body of the main member 200. The flexible guides 222, 223 also act as return springs for the retractable spout 206 and the auxiliary member ire 201.

Il va de soi que les différents modes de réalisation exposés ci-dessus ne sont pas exhaustifs. De nombreuses autres modifications pourraient être effectuées sans sortir du cadre de l'invention revendiquée. Par exemple, dans le premier mode de réalisation, au lieu d'être montés pivotants l'organe auxiliaire 201 et l'organe de sécurité 202, ou seulement l'un d'entre eux, pourraient être mobiles en translation. Qu'ils soient mobiles en rotation ou en translation, les organes principal 200, auxiliaire 201 et de sécurité 202 peuvent être guidés par des éléments rigides (axes, glissières, etc.) ou par des guidages flexibles.It goes without saying that the various embodiments described above are not exhaustive. Many other modifications could be made without departing from the scope of the claimed invention. For example, in the first embodiment, instead of being pivotally mounted, the auxiliary member 201 and the safety member 202, or only one of them, could be movable in translation. Whether they are mobile in rotation or in translation, the main 200, auxiliary 201 and safety 202 members can be guided by rigid elements (axes, slides, etc.) or by flexible guides.

Claims (13)

  1. Striking mechanism for a timepiece, comprising at least one gong (29, 30), an actuating device (11, 20-28, 32-54) for actuating the gong(s), a striking barrel (3), a rocker clutch (6; 110) for coupling the actuating device (11, 20-28, 32-54) to the striking barrel (3) and a strike-triggering device (200-219), the rocker (6; 110) of the clutch being arranged to pivot between a first position in which the actuating device (11, 20-28, 32-54) is coupled to the striking barrel (3) and a second position in which the actuating device (11, 20-28, 32-54) is uncoupled from the striking barrel (3), the rocker (6; 110) being further arranged to move from its first position to its second position under the action of a return spring (13) when the strike-triggering device (200-219) is actuated in order to allow the actuating device (11, 20-28, 32-54) to take note of the number of strikes to be made and to return to its first position under the action of the actuating device (11, 20-28, 32-54) to allow the actuating device (11, 20-28, 32-54) to actuate the gong(s) (29, 30) under the action of the striking barrel (3), characterised in that the strike-triggering device (200-219) comprises a main member (200) arranged to be controlled by a manual control member (15a) and bearing a retractable beak (206), an auxiliary member (201) arranged to be controlled by the main member (200) and a safety member (202) arranged to be controlled by the actuating device (11, 20-28, 32-54), the main member (200) being further arranged, in its rest position, to keep the rocker (6; 110) in its first position by the retractable beak (206), the retractable beak (206) being arranged to retract in order to allow the rocker (6; 110) to return to its first position under the action of the actuating device (11, 20-28, 32-54) when, after the manual control member (15a) has been released too quickly, the main member (200) is back in its rest position before the rocker (6; 110) has returned to its first position, the auxiliary member (201) being arranged to keep the rocker (6; 110) in its first position after said retraction of the retractable beak (206), the safety member (202) being arranged to keep the rocker (6; 110) in its first position when, whilst the actuating device (11, 20-28, 32-54) actuates the gong(s) (29, 30), the main member (200) is actuated by the manual control member (15a).
  2. Striking mechanism as claimed in claim 1, characterised in that the rocker (6; 110) is arranged to return to its first position under the action of a quarter-rack (35) of the actuating device (11, 20-28, 32-54).
  3. Striking mechanism as claimed in claim 1 or 2, characterised in that the safety member (202) is arranged to be controlled by a quarter-rack (35) of the actuating device (11, 20-28, 32-54).
  4. Striking mechanism as claimed in any one of claims 1 to 3, characterised in that the rocker (6; 110) bears a pin (14) engaged in a fork (67) of a clutch control lever (66) arranged to be actuated by the actuating device (11, 20-28, 32-54) to return the rocker (6; 110) to its first position.
  5. Striking mechanism as claimed in claim 4, characterised in that the retractable beak (206) is arranged to cooperate with the fork (67) or with the pin (14) to keep the rocker (6; 110) in its first position.
  6. Striking mechanism as claimed in claim 4 or 5, characterised in that the auxiliary member (201) is arranged to cooperate with the pin (14) to hold the rocker (6; 110) after said retraction of the retractable beak (206).
  7. Striking mechanism as claimed in any one of claims 4 to 6, characterised in that the safety member (202) is arranged to cooperate with the clutch control lever (66) to keep the rocker (6; 110) in its first position when, whilst the actuating device (11, 20-28, 32-54) actuates the gong(s) (29, 30), the main member (200) is actuated by the manual control member (15a).
  8. Striking mechanism as claimed in any one of claims 1 to 7, characterised in that the main member (200), the auxiliary member (201) and the safety member (202), or at least one said members, are levers.
  9. Striking mechanism as claimed in any one of claims 1 to 8, characterised in that the main member (200) and the auxiliary member (201) are levers, and in that the auxiliary member (201) is non-coaxial with the main member (200) and is pivoted at a point (210) which is fixed relative to the pivoting point (203) of the main member (200).
  10. Striking mechanism as claimed in any one of claims 1 to 8, characterised in that the main member (200) and the auxiliary member (201) are levers, and in that the auxiliary member (201) is coaxial with the main member (200).
  11. Striking mechanism as claimed in any one of claims 1 to 8, characterised in that the auxiliary member (201) is borne by the main member (200).
  12. Striking mechanism as claimed in any one of claims 1 to 8 and 11, characterised in that the auxiliary member (201) is in one-piece with the main member (200) and coupled thereto by a flexible guide (223).
  13. Striking mechanism as claimed in any one of claims 1 to 12, characterised in that the retractable beak (206) is in one-piece with the body of the main member (200) and coupled to said body by a flexible guide (222).
EP19210283.8A 2019-11-20 2019-11-20 Striking mechanism for timepiece Active EP3825781B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP19210283.8A EP3825781B1 (en) 2019-11-20 2019-11-20 Striking mechanism for timepiece

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19210283.8A EP3825781B1 (en) 2019-11-20 2019-11-20 Striking mechanism for timepiece

Publications (2)

Publication Number Publication Date
EP3825781A1 EP3825781A1 (en) 2021-05-26
EP3825781B1 true EP3825781B1 (en) 2022-05-25

Family

ID=68732683

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19210283.8A Active EP3825781B1 (en) 2019-11-20 2019-11-20 Striking mechanism for timepiece

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EP (1) EP3825781B1 (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1925997B1 (en) * 2006-11-21 2013-02-27 Manufacture Claret SA Chiming mechanism
WO2015124510A1 (en) 2014-02-19 2015-08-27 Chopard Technologies Sa Striking mechanism for a timepiece
EP3070543A1 (en) * 2015-03-18 2016-09-21 Glashütter Uhrenbetrieb GmbH Repetition striking mechanism with integrated trigger lock

Also Published As

Publication number Publication date
EP3825781A1 (en) 2021-05-26

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