EP3361323B1 - Winding system of a timepiece - Google Patents

Winding system of a timepiece Download PDF

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Publication number
EP3361323B1
EP3361323B1 EP17155907.3A EP17155907A EP3361323B1 EP 3361323 B1 EP3361323 B1 EP 3361323B1 EP 17155907 A EP17155907 A EP 17155907A EP 3361323 B1 EP3361323 B1 EP 3361323B1
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EP
European Patent Office
Prior art keywords
pawl
wheel
clutch device
winding
clutch
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
EP17155907.3A
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German (de)
French (fr)
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EP3361323A1 (en
Inventor
Bruno MAROLDA
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.)
Rolex SA
Original Assignee
Rolex SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Rolex SA filed Critical Rolex SA
Priority to EP17155907.3A priority Critical patent/EP3361323B1/en
Priority to JP2018021525A priority patent/JP7164957B2/en
Priority to CN201810146975.3A priority patent/CN108427259B/en
Priority to US15/894,136 priority patent/US11112757B2/en
Publication of EP3361323A1 publication Critical patent/EP3361323A1/en
Application granted granted Critical
Publication of EP3361323B1 publication Critical patent/EP3361323B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B5/00—Automatic winding up
    • G04B5/02—Automatic winding up by self-winding caused by the movement of the watch
    • 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
    • G04B11/00—Click devices; Stop clicks; Clutches
    • G04B11/02—Devices allowing the motion of a rotatable part in only one direction
    • G04B11/04—Pawl constructions therefor, e.g. pawl secured to an oscillating member actuating a ratchet
    • 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
    • G04B11/00—Click devices; Stop clicks; Clutches
    • G04B11/006—Clutch mechanism between two rotating members with transfer of movement in only one direction (free running devices)
    • 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
    • G04B5/00—Automatic winding up

Definitions

  • the invention relates to a clock system.
  • the invention also relates to a watch movement comprising such a system.
  • the invention also relates to a timepiece comprising such a system or such a movement.
  • the invention also relates to a method of operating such a system, such a movement or such a timepiece.
  • the invention also relates to a winding chain for a watch barrel.
  • the invention also relates to a timepiece movement comprising such a chain.
  • the invention also relates to a timepiece comprising such a chain or such a movement.
  • the barrel springs of timepieces with manual or automatic winding are usually kept under tension by means of a pawl which is designed to cooperate with a ratchet mounted square on the barrel shaft, or even directly with a drum. barrel in the case of a movement with at least two barrels. More particularly, the pawl immobilizes the ratchet in the direction of disarming the barrel spring, and unlocks when the manual or automatic winding device is actuated.
  • Requirement EP 2,367,080 A1 describes a timepiece with an alarm function that uses the energy of a barrel and whose operation is actuated by a ratchet.
  • the watchmaker When disassembling a conventional manual winding movement, the watchmaker can disarm the barrel spring in a single operation by retracting the pawl from the toothing of the ratchet or barrel drum.
  • an automatic winding movement in particular in the case of a bidirectional automatic winding movement, such an operation may not be made possible due to the very architecture of the automatic device. Indeed, by their construction, automatic winding devices immobilize the ratchet in the direction of disarming the spring, so that the retraction the ratchet of the ratchet toothing or of the drum is not sufficient to disarm the barrel spring.
  • Such an automatic device may for example include a friction mobile, as mentioned in the book "Clockmaking theory” (Reymondin, Monnier, Jeanneret, Pelaratti, Federation of Technical Schools, 1998, chapter 8.3.6; page183 ).
  • This mobile comprises, for example, a wheel and a pinion which are secured uni-directionally by means of a friction spring with three arms fixed on the pinion.
  • the pinion is engaged with a barrel ratchet, while the wheel is engaged with an automatic chain.
  • the wheel and the pinion are kinematically linked by means of the spring, the three arms of which are housed in holes made on the board of the wheel.
  • the kinematic link between the ratchet and the chain of the automatic device is broken by the spring, the three arms of which dislodge from the holes made on the wheel board.
  • Such a construction advantageously makes it possible to disengage the manual winding chain from the automatic winding chain.
  • it does not allow the kinematic chain established between the ratchet and the automatic winding device to be broken in the direction of rotation of the ratchet corresponding to the disarming of the barrel spring, so that the retraction of the pawl of the ratchet teeth does not not sufficient to allow disarming of the barrel spring, since the latter is blocked by the pawl taking part in the winding device.
  • such a solution is not optimal due to the resistive torque induced by the friction mobile during manual winding. This solution can also be subject to wear, with the risk of untimely degradation of the friction mobile in the case of intensive manual winding.
  • the document US2707371 discloses another form of declutching device intended to break the connection between an automatic device and a barrel.
  • the declutching device is in the form of a horizontal declutching device.
  • This system notably includes a pinion which is engaged with a ratchet driving wheel intended to move within an oblong curved cutout.
  • the ratchet is rotated clockwise under the effect of a kinematic chain.
  • the toothing of the wheel is released from the toothing of the ratchet due to the result of the forces applied to the wheel.
  • the wheel is returned to the ratchet under the effect of a wire spring.
  • Such a construction advantageously makes it possible to disengage the manual winding chain from the automatic winding chain.
  • the wheel is likely to "oscillate" within the cutout under the effect of the spring, so that the toothing of the wheel may more or less frequently come up against the toothing of the ratchet according to the speed of manual winding.
  • Such a construction can therefore be subject to premature wear.
  • the device disclosed is devoid of any pawl allowing the barrel spring to be kept under tension independently of the automaton device. A timepiece incorporating such a device cannot thus function independently of its automatic device.
  • There is also the problem of dismantling the automaton which exposes the watchmaker to the problem of untimely unwinding of the barrel spring. Such a solution is therefore not optimal.
  • the document EP2226687 discloses another form of declutching device intended to break the connection between an automatic device and a barrel.
  • the declutching device is in the form of a vertical declutching device.
  • the advantage of this declutching device is that it allows the watchmaker to disarm, by means of a sliding pin, the barrel spring without having to dismantle the automatic device which is here presented in the form of a device for '' bidirectional winding automaton equipped with reversing mobiles, the conformation of which keeps the barrel spring under tension.
  • This disengaging device also has the advantage of breaking the manual winding chain and the automatic winding chain during manual winding, so that the reversing mobiles are not stressed in this configuration.
  • the teeth taking part in the clutch device constantly release against a spring, so that these teeth can be subject to substantial wear, in particular in the case of sustained manual winding.
  • this device is devoid of any pawl making it possible to keep the barrel spring under tension independently of the automatic device.
  • a timepiece incorporating such a device cannot thus function independently of its automatic device.
  • the automaton which exposes the watchmaker to the problem of untimely unwinding of the barrel spring.
  • the watchmaker should then act simultaneously on two independent devices distant from each other to disarm this spring : it should act on the one hand on the sliding axis, and on the other hand on the ratchet himself. It can therefore be seen that this solution is not satisfactory either, in particular in terms of maintainability.
  • the object of the invention is to provide a system which makes it possible to remedy the drawbacks mentioned above and to improve the systems known from the prior art.
  • the invention provides a system allowing a movement to operate independently of its automatic device, while avoiding tooth wear phenomena and allowing controlled disarming of the barrel by a watchmaker.
  • a system is defined by claim 1.
  • a movement is defined by claim 9.
  • an operating method is defined by claim 12.
  • a timepiece is defined by claim 15.
  • the timepiece is for example a watch, in particular a wristwatch.
  • the timepiece comprises a movement 100.
  • the movement is preferably a mechanical and automatic movement.
  • the movement includes a frame 4, a barrel 7, a gear train and an automaton or automaton device.
  • the PLC device can be a PLC module M 'as shown in the figure 8 .
  • automaton or “automaton device” is meant, throughout this document, a kinematic chain 300, 300 'of automatic winding of the movement or a part of kinematic chain of automatic winding of the barrel 7, 7' of the movement.
  • the kinematic chain part comprises at least one oscillating mass 8 whose mechanical energy is used to wind the barrel.
  • the automaton comprises reversing mobiles 11, 12.
  • the automaton is therefore preferably bidirectional, that is to say that a ratchet 6 of barrel 7 is driven in a single and same winding direction of the spring whatever the direction of rotation of the oscillating weight 8.
  • the two reversing mobiles 11, 12 allow on the one hand the ratchet to be driven by a movement transmission of the oscillating weight 8 in the winding direction of a barrel spring and, on the other hand, immobilization of the ratchet in the direction of disarming the barrel spring under the effect of the oscillating mass 8.
  • the kinematic chain of automatic movement winding is irreversible in this mode of achievement.
  • the automaton is preferably arranged to immobilize a ratchet or a wheel in a direction of disarming the barrel spring.
  • the automaton can be a module M ′ of automaton.
  • the module is for example intended to be fixed to a barrel bridge 4 of the movement as shown in the figures 8 and 9 .
  • the module comprises for example two blanks M1 ', M2' which pivot different cogs of the automaton and the oscillating mass 8.
  • the automatic winding kinematic chain can possibly replace a ratchet ratchet or a drum ratchet.
  • the reversing mobiles 11, 12 are mounted in series.
  • the reversing mobiles 11, 12 are connected to a pinion 1, in particular by means of a wheel 13 which is integral and coaxial with the latter.
  • the automatic winding kinematic chain 300 or automatic winding chain extends from the oscillating mass 8 to the barrel 7, the oscillating mass and the barrel being included in the chain.
  • a manual winding kinematic chain or manual winding chain extends from an element which can be manipulated directly by the user, such as a crown, to the barrel 7, the manipulable element and the barrel being included in the chain.
  • the reversing mobiles are preferably arranged in series. Alternatively, they can be arranged in parallel.
  • the reversing mobiles include levers 111, 112 and 121, 122 cooperating respectively with wheels 113, 123 with asymmetrical teeth.
  • the clutch device 120 makes it possible to distinguish a first part 301 of kinematic winding chain 300, in particular automatic winding, from barrel 7, from a second part 302 of kinematic winding chain 300, in particular automatic winding, from barrel 7
  • the clutch device makes it possible, in a first state called “engaged”, to link or to join together, in particular to link or join together kinematically, these first and second parts to constitute the kinematic winding chain or, in a second state called “Disengaged”, to separate, in particular kinematically separate, these first and second parts.
  • the first part of the kinematic chain extends from the barrel 7 to the clutch device.
  • the second part of the kinematic chain extends from the oscillating mass 8 to the clutch device.
  • the reference 2 is preferably pivoted on the lever 3.
  • the lever is itself pivotally mounted along an axis 3a on a frame or a draft of the movement, in particular on a barrel bridge 4.
  • the rocker could be pivoted on the ratchet or vice versa.
  • reference 2 can be guided within a cutout oblong in the frame of the movement and the extent of which corresponds substantially to the angular travel of the lever 3.
  • the reference 2 is moved in the plane of the frame of the movement according to the state of the clutch device.
  • the lever 3 cooperates with a pawl spring 5a.
  • the spring is preferably fixed on a blank of the movement and is arranged to act on the clutch device, in particular on the rocker, to bring it back to a rest position or engaged state represented on the figure 1 .
  • a conformation 3c of the rocker forming a stop (shown in the figure 6 ) is in contact against a stop 4b (shown on the figure 6 ) provided on the movement frame, in particular on a blank, in particular on the barrel bridge.
  • the stop 3c can be, for example, a pivot pin wall of the gear 2.
  • the stop 4b can be, for example, a bore wall.
  • the stop 3c and the stop 4b are arranged so as to guarantee a spacing as precise as possible between the gear 2 and the first wheel 6 and thus ensuring a good meshing of the gear and the first wheel.
  • the recall action is produced or not depending on the state of the pawl device as described in more detail below.
  • This pawl spring is also part of the coupling device which is described in more detail below.
  • the reference 2 has a diameter greater than the pinion 1.
  • the ratchet device 110 makes it possible to immobilize the first wheel 6 of the first part of the kinematic chain for winding the watch barrel 7.
  • the first wheel is advantageously a ratchet 6 of the barrel.
  • the pawl device comprises a pawl 5 provided with a tooth or a spout 50a and a spring 5a for returning the pawl to a rest position (represented on the figure 1 ) corresponding to the activated state of the pawl device and in which the tooth interferes with a toothing 6a of the first wheel 6.
  • the pawl prohibits rotation of the first wheel 6 in a direction of rotation, in particular the counterclockwise as shown in the figure 1 , corresponding to the disarming of the barrel spring 7.
  • the pawl In the rest position, the pawl is in contact with a stop 4a provided on the movement frame, in particular on the barrel bridge.
  • the pawl and the spring are arranged so that the pawl is returned to its rest position by the spring 5a when the pawl is in a disengaged state, then the pawl is returned (alternately or additionally) to its rest position by the action of the barrel spring via the first wheel 6 when the pawl interferes with the toothing 6a. Indeed, in the rest position, the spring 5a may no longer act on the pawl as shown in the figure 1 .
  • the pawl is for example a lever 5c pivoted on a barrel bridge.
  • the lever comprises a first arm terminated by at least one tooth capable of interfering with the toothing of the first wheel.
  • the lever comprises a second arm arranged so as to cooperate with the stop 4a to define the rest position of the pawl.
  • the lever comprises a third arm arranged so as to cooperate by pressing on the spring 5a when the pawl device is notably deactivated.
  • the lever may include a fourth arm arranged so as to be manipulated by a watchmaker, in particular manipulated by the watchmaker via a tool.
  • the coupling device makes it possible to logically couple or link the states of the ratchet device and of the clutch device.
  • the coupling device 130 is arranged so as to maintain a engaged state of the clutch device 120 when the pawl device is activated. So, when the pawl is in an activated state as shown on the figure 1 , the coupling device forces the clutch device to be in the engaged state.
  • the coupling device 130 is further arranged so as to allow a engaged state and a disengaged state of the clutch device 120 when the pawl device is deactivated.
  • the coupling device does not force the clutch device to be in the engaged state or in the disengaged state.
  • the clutch device may be in either of the engaged and disengaged states depending on other considerations or factors.
  • the state of the clutch device is advantageously controlled or determined by the states of the first and second parts of the automatic winding chain. A drive of the first part of the automatic winding chain (due to manual winding, therefore without driving the second part of the automatic winding chain) causes the clutch device to disengage. Conversely, a drive of the second part of the automatic winding chain (due to a movement of the oscillating weight) causes the clutch device to engage.
  • the coupling device 130 comprises a portion 71 of spring 5a for returning the pawl device cooperating by contact with a portion 72 of the clutch device, in particular a portion 72 of rocker 3 of the clutch device .
  • the clutch device and the spring are arranged so that the portions are in contact when the pawl is activated and that this contact determines the engaged state of the clutch device, in particular the position of the rocker 3 corresponding to the clutch condition of the clutch device.
  • a second embodiment of a timepiece 200 ′ is described below with reference to the figure 7 .
  • the timepiece is for example a watch, in particular a wristwatch.
  • the timepiece includes a 100 'movement.
  • the movement is a mechanical and automatic movement.
  • the movement includes a frame, a barrel 7, a gear train and an automaton or automaton device.
  • the elements identical or similar to the elements of the first embodiment bear the same references as those of the elements of the first embodiment.
  • the elements having identical or similar functions to those of other elements of the first embodiment bear references which are those of the elements of the first embodiment to which a "'" has been added. .
  • the spring 5a ' acts on the rocker 3 by means of a pawl 5' which takes the form of a lever 5c '.
  • the lever 5c ' is an arm of the ratchet device 110'.
  • a portion 71 'of the arm cooperates by contact with a portion 72' of the clutch device, in particular a rocker portion of the clutch device or a rocker flank of the clutch device.
  • the portion 71 ' is for example one end of the arm.
  • the operating principle of such a device is similar to that of the first embodiment.
  • the figure 7 illustrates this second embodiment at rest, in a configuration similar to that of the figure 1 .
  • the lever 5c ' In this rest position, the lever 5c 'is in contact with a stop 4a provided on the movement frame, in particular on the barrel bridge. Alternatively, the lever 5c 'could abut against the lever 3, in particular by means of the portions 71' and 72 '. In this hypothesis, the rest position is defined by the contact of the lever and the rocker.
  • the coupling device 130 ' comprises a portion 71' of the pawl device and a portion 72 'of the clutch device.
  • the other elements of the second embodiment are identical or similar to the elements of the first embodiment described above.
  • the system does not require an additional spring which would be added to that necessary for the operation of the pawl device, in particular at the pawl spring 5a or 5a '.
  • the construction is therefore particularly compact because it takes advantage of a pre-existing device to generate an additional declutching function.
  • a additional spring would risk degrading the performance of the automatic drive train due to an additional resistive torque, in particular if this spring takes the form of a friction foil placed on the clutch release lever or in the form of clamps provided for act on the pivoting of the reference 2.
  • the solution is therefore particularly advantageous in terms of construction and performance.
  • the first part of the automatic winding chain is very limited: it only comprises the barrel 7 and the barrel ratchet 6.
  • the clutch device cooperates directly or meshes with the ratchet 6.
  • An intermediate barrel could for example be interposed between the entry of the first part of the automatic winding chain and the ratchet.
  • the pawl device cooperates directly with the teeth of the barrel ratchet 6.
  • the pawl device cooperates directly with any wheel with unidirectional rotation of the winding chain, in particular with any wheel of the first part of the automatic winding chain, or even with any wheel with unidirectional rotation of the manual winding chain.
  • ratchet we mean here a component or an assembly intended to keep the barrel spring under tension.
  • the ratchet can be, as in the embodiments described, an assembly of several parts, in particular a lever provided with a spout indexing the teeth of a wheel of the first part of the winding chain under the action of a spring.
  • the pawl may be a leaf spring provided with one or more teeth indexing the toothing of a wheel of the first part of the winding chain.
  • the pawl device is arranged so as to be actuable while the automaton device is assembled on the rest of the movement.
  • the first wheel When manually winding the watch as illustrated in the figure 4 , the first wheel is driven clockwise by a kinematic manual winding chain not shown.
  • the clockwise rotation of the first wheel 6 induces on the one hand the release of the spout 50a; 50a 'of the pawl 5; 5 'of the toothing 6a, and on the other hand the release of the toothing 2a of the reference 2 of the toothing 6a.
  • the first wheel 6 is driven clockwise by the second part of the winding chain, in particular under the effect of the pinion 1 and the gear 2 which rotate respectively clockwise and counterclockwise.
  • the toothing 2a is in engagement with the toothing 6a.
  • This meshing is perpetuated by the orientation of the resultant R 'of the forces which are applied to the gear 2.
  • a slight friction of the gear 2 on the rocker can also be expected.
  • the coupling device 130, 130 ′ acts on the clutch device 120; 120 'so as to recall the clutch device 120, 120' in the engaged state corresponding to the activated state of the ratchet device 110, 110 '.
  • the clutch device returns to its engaged state shown in the figure 1 under the effect of the return of the spring 5a or 5a '.
  • the watchmaker To disarm the barrel spring, the watchmaker just has to wind the barrel spring slightly by the manual winding mechanism. This action deactivates the ratchet device and causes the passage of the clutch device in disengaged state. The watchmaker must then keep the ratchet device in the deactivated state while stopping to wind the barrel until the barrel spring disarms. The watchmaker therefore has only limited actions to perform on the movement to allow the unwinding of the barrel spring.
  • the movement being assembled, the pawl 5, 5 ′ preferably remains accessible by the watchmaker as shown in the figure 9 .
  • This accessibility is preferably possible in certain positions of the oscillating mass, in particular in the position of the oscillating mass shown on the figure 9 .
  • the solution offers the watchmaker the possibility of disarming the barrel spring while the automaton module is still in place on the barrel bridge 4.
  • the clutch device in the first position of the lever defining a engaged state of the clutch device, is in contact with a stop. 4b.
  • the system described above has the particularity of allowing the disengaging of the automatic winding chain when the pawl is retracted by the watchmaker, so that disarming the barrel spring is made possible in a minimum of operation, even then that the automaton device is still in place on the watch movement.
  • the declutching device has, moreover, the specificity of being activated when the manual winding device is actuated so that the automatic device is not stressed during manual winding.
  • Such an embodiment is thus particularly advantageous within the framework of a timepiece movement provided with a bidirectional automatic device employing clutch mobiles or “reversing” mobiles, whose rotation speeds are optimized.
  • Such an embodiment can also be implemented within a timepiece movement equipped with another type of automaton, such as the Pellaton type automaton.
  • the watch movement is preferably mechanical. It can also be electromechanical.
  • the system described above is also particularly advantageous in view of its simplicity and compactness.

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  • General Physics & Mathematics (AREA)
  • Transmission Devices (AREA)
  • Mechanical Operated Clutches (AREA)
  • Toys (AREA)

Description

L'invention concerne un système horloger. L'invention concerne aussi un mouvement horloger comprenant un tel système. L'invention concerne également une pièce d'horlogerie comprenant un tel système ou un tel mouvement. L'invention concerne aussi un procédé de fonctionnement d'un tel système, d'un tel mouvement ou d'une telle pièce d'horlogerie. L'invention concerne également une chaîne de remontage pour barillet horloger. L'invention concerne aussi un mouvement horloger comprenant une telle chaîne. L'invention concerne également une pièce d'horlogerie comprenant une telle chaîne ou un tel mouvement.The invention relates to a clock system. The invention also relates to a watch movement comprising such a system. The invention also relates to a timepiece comprising such a system or such a movement. The invention also relates to a method of operating such a system, such a movement or such a timepiece. The invention also relates to a winding chain for a watch barrel. The invention also relates to a timepiece movement comprising such a chain. The invention also relates to a timepiece comprising such a chain or such a movement.

Les ressorts de barillet des pièces d'horlogerie à remontage manuel ou automatique sont usuellement maintenus sous tension par le biais d'un cliquet qui est prévu pour coopérer avec un rochet monté à carré sur l'arbre de barillet, voire directement avec un tambour de barillet dans le cas d'un mouvement doté d'au moins deux barillets. Plus particulièrement, le cliquet immobilise le rochet dans le sens du désarmage du ressort de barillet, et décliquète lors de l'actionnement du dispositif de remontage manuel ou automatique. La demande EP 2 367 080 A1 décrit une pièce d'horlogerie avec une fonction de réveil qui utilise l'énergie d'un barillet et dont le fonctionnement est actionné par un cliquet.The barrel springs of timepieces with manual or automatic winding are usually kept under tension by means of a pawl which is designed to cooperate with a ratchet mounted square on the barrel shaft, or even directly with a drum. barrel in the case of a movement with at least two barrels. More particularly, the pawl immobilizes the ratchet in the direction of disarming the barrel spring, and unlocks when the manual or automatic winding device is actuated. Requirement EP 2,367,080 A1 describes a timepiece with an alarm function that uses the energy of a barrel and whose operation is actuated by a ratchet.

Lors du démontage d'un mouvement à remontage manuel conventionnel, l'horloger a la possibilité de désarmer le ressort de barillet en une seule opération en escamotant le cliquet de la denture du rochet ou du tambour de barillet. Dans le cas d'un mouvement à remontage automatique, en particulier dans le cas d'un mouvement à remontage automatique bidirectionnel, une telle opération peut ne pas être rendue possible du fait de l'architecture même du dispositif d'automate. En effet, de par leur construction, des dispositifs de remontage automatique immobilisent le rochet dans le sens du désarmage du ressort, si bien que l'escamotage du cliquet de la denture du rochet ou du tambour ne suffit pas pour permettre le désarmage du ressort de barillet.When disassembling a conventional manual winding movement, the watchmaker can disarm the barrel spring in a single operation by retracting the pawl from the toothing of the ratchet or barrel drum. In the case of an automatic winding movement, in particular in the case of a bidirectional automatic winding movement, such an operation may not be made possible due to the very architecture of the automatic device. Indeed, by their construction, automatic winding devices immobilize the ratchet in the direction of disarming the spring, so that the retraction the ratchet of the ratchet toothing or of the drum is not sufficient to disarm the barrel spring.

Un tel dispositif d'automate peut par exemple comprendre un mobile de friction, comme mentionné dans l'ouvrage « Théorie d'horlogerie » (Reymondin, Monnier, Jeanneret, Pelaratti, Fédération des écoles techniques, 1998, chapitre 8.3.6; page183 ). Ce mobile comporte, par exemple, une roue et un pignon qui sont solidarisés uni-directionnellement par le biais d'un ressort de friction à trois bras fixé sur le pignon. Le pignon est en prise avec un rochet de barillet, tandis que la roue est en prise avec une chaîne d'automate. Lors du fonctionnement du dispositif d'automate, la roue et le pignon sont liés cinématiquement par le biais du ressort dont les trois bras se logent dans des trous pratiqués sur la planche de la roue. Lors du remontage manuel, la liaison cinématique entre le rochet et la chaîne du dispositif d'automate est rompue par le ressort dont les trois bras se délogent des trous pratiqués sur la planche de la roue.Such an automatic device may for example include a friction mobile, as mentioned in the book "Clockmaking theory" (Reymondin, Monnier, Jeanneret, Pelaratti, Federation of Technical Schools, 1998, chapter 8.3.6; page183 ). This mobile comprises, for example, a wheel and a pinion which are secured uni-directionally by means of a friction spring with three arms fixed on the pinion. The pinion is engaged with a barrel ratchet, while the wheel is engaged with an automatic chain. During the operation of the automatic device, the wheel and the pinion are kinematically linked by means of the spring, the three arms of which are housed in holes made on the board of the wheel. During manual winding, the kinematic link between the ratchet and the chain of the automatic device is broken by the spring, the three arms of which dislodge from the holes made on the wheel board.

Une telle construction permet avantageusement de débrayer la chaîne de remontage manuel de la chaîne de remontage automatique. Néanmoins, elle ne permet pas de rompre la chaîne cinématique établie entre le rochet et le dispositif de remontage automatique dans le sens de rotation du rochet correspondant au désarmage du ressort de barillet, si bien que l'escamotage du cliquet de la denture du rochet ne suffit pas pour permettre le désarmage du ressort de barillet, car celui-ci est bloqué par le cliquet prenant part au dispositif de remontage. Par ailleurs, une telle solution n'est pas optimale du fait du couple résistif induit par le mobile de friction lors du remontage manuel. Cette solution peut également être sujette à l'usure, avec des risques de dégradation intempestive du mobile de friction dans le cas d'un remontage manuel intensif.Such a construction advantageously makes it possible to disengage the manual winding chain from the automatic winding chain. However, it does not allow the kinematic chain established between the ratchet and the automatic winding device to be broken in the direction of rotation of the ratchet corresponding to the disarming of the barrel spring, so that the retraction of the pawl of the ratchet teeth does not not sufficient to allow disarming of the barrel spring, since the latter is blocked by the pawl taking part in the winding device. Furthermore, such a solution is not optimal due to the resistive torque induced by the friction mobile during manual winding. This solution can also be subject to wear, with the risk of untimely degradation of the friction mobile in the case of intensive manual winding.

Le document US2707371 divulgue une autre forme de dispositif de débrayage prévu pour rompre la liaison entre un dispositif d'automate et un barillet. Dans ce document, le dispositif de débrayage se présente sous la forme d'un dispositif de débrayage horizontal. Ce système comporte notamment un pignon qui est en prise avec une roue entraîneuse de rochet prévue pour se déplacer au sein d'une découpe oblongue incurvée. Lors du remontage manuel, le rochet est entraîné en rotation en sens horaire sous l'effet d'une chaîne cinématique. Dans cette configuration, la denture de la roue est dégagée de la denture du rochet du fait de la résultante des forces appliquée sur la roue. Une fois le remontage manuel terminé, la roue est rappelée vers le rochet sous l'effet d'un ressort-fil. Lors de l'activation du dispositif d'automate, la denture de la roue reste engrenée avec la denture du rochet du fait de la résultante des forces appliquée sur la roue. Dans cette configuration, la chaîne cinématique du remontage manuel est rompue grâce à un deuxième dispositif d'embrayage horizontal.The document US2707371 discloses another form of declutching device intended to break the connection between an automatic device and a barrel. In this document, the declutching device is in the form of a horizontal declutching device. This system notably includes a pinion which is engaged with a ratchet driving wheel intended to move within an oblong curved cutout. During manual winding, the ratchet is rotated clockwise under the effect of a kinematic chain. In this configuration, the toothing of the wheel is released from the toothing of the ratchet due to the result of the forces applied to the wheel. Once the manual winding is completed, the wheel is returned to the ratchet under the effect of a wire spring. When the automatic device is activated, the toothing of the wheel remains meshed with the toothing of the ratchet due to the result of the forces applied to the wheel. In this configuration, the kinematic chain of manual winding is broken thanks to a second horizontal clutch device.

Une telle construction permet avantageusement de débrayer la chaîne de remontage manuel de la chaîne de remontage automatique. Toutefois, lors du remontage manuel, la roue est susceptible « d'osciller » au sein de la découpe sous l'effet du ressort, si bien que la denture de la roue peut venir buter plus ou moins fréquemment à l'encontre de la denture du rochet selon la vitesse du remontage manuel. Une telle construction peut donc être sujette à une usure prématurée. Par ailleurs, le dispositif divulgué est dénué de tout cliquet permettant de maintenir sous tension le ressort de barillet indépendamment du dispositif d'automate. Une pièce d'horlogerie incorporant un tel dispositif ne peut ainsi fonctionner indépendamment de son dispositif d'automate. Il existe également la problématique du démontage de l'automate qui expose l'horloger au problème de dévidage intempestif non maîtrisé du ressort de barillet. Une telle solution n'est donc pas optimale.Such a construction advantageously makes it possible to disengage the manual winding chain from the automatic winding chain. However, during manual winding, the wheel is likely to "oscillate" within the cutout under the effect of the spring, so that the toothing of the wheel may more or less frequently come up against the toothing of the ratchet according to the speed of manual winding. Such a construction can therefore be subject to premature wear. Furthermore, the device disclosed is devoid of any pawl allowing the barrel spring to be kept under tension independently of the automaton device. A timepiece incorporating such a device cannot thus function independently of its automatic device. There is also the problem of dismantling the automaton which exposes the watchmaker to the problem of untimely unwinding of the barrel spring. Such a solution is therefore not optimal.

Le document EP2226687 divulgue une autre forme de dispositif de débrayage prévu pour rompre la liaison entre un dispositif d'automate et un barillet. Dans ce document, le dispositif de débrayage se présente sous la forme d'un dispositif de débrayage vertical. Ce dispositif de débrayage a pour avantage de permettre à l'horloger de désarmer, par le biais d'un axe coulissant, le ressort de barillet sans avoir à démonter le dispositif d'automate qui se présente ici sous la forme d'un dispositif d'automate à remontage bidirectionnel doté de mobiles inverseurs, dont la conformation permet de maintenir sous tension le ressort de barillet. Ce dispositif de débrayage a également pour avantage de rompre la chaîne de remontage manuel et la chaîne de remontage automatique lors du remontage manuel, si bien que les mobiles inverseurs ne sont pas sollicités dans cette configuration. Toutefois, lors du remontage manuel, les dentures prenant part au dispositif d'embrayage décliquètent constamment à l'encontre d'un ressort, si bien que ces dentures peuvent être sujettes à une usure conséquente, notamment en cas de remontage manuel soutenu.The document EP2226687 discloses another form of declutching device intended to break the connection between an automatic device and a barrel. In this document, the declutching device is in the form of a vertical declutching device. The advantage of this declutching device is that it allows the watchmaker to disarm, by means of a sliding pin, the barrel spring without having to dismantle the automatic device which is here presented in the form of a device for '' bidirectional winding automaton equipped with reversing mobiles, the conformation of which keeps the barrel spring under tension. This disengaging device also has the advantage of breaking the manual winding chain and the automatic winding chain during manual winding, so that the reversing mobiles are not stressed in this configuration. However, during manual winding, the teeth taking part in the clutch device constantly release against a spring, so that these teeth can be subject to substantial wear, in particular in the case of sustained manual winding.

Par ailleurs, à l'instar du dispositif divulgué au sein du document US2707371 , ce dispositif est dénué de tout cliquet permettant de maintenir sous tension le ressort de barillet indépendamment du dispositif d'automate. Une pièce d'horlogerie incorporant un tel dispositif ne peut ainsi fonctionner indépendamment de son dispositif d'automate. Il existe également la problématique du démontage de l'automate qui expose l'horloger au problème de dévidage intempestif non maîtrisé du ressort de barillet. Par ailleurs, dans l'hypothèse où un cliquet serait prévu pour maintenir sous tension le ressort de barillet en complément du dispositif précité, l'horloger devrait alors agir simultanément sur deux dispositifs indépendants et éloignés l'un de l'autre pour désarmer ce ressort : il devrait d'une part agir sur l'axe coulissant, et d'autre part sur le cliquet lui-même. On constate donc que cette solution n'est pas non plus satisfaisante, en particulier en termes de maintenabilité.Furthermore, like the device disclosed in the document US2707371 , this device is devoid of any pawl making it possible to keep the barrel spring under tension independently of the automatic device. A timepiece incorporating such a device cannot thus function independently of its automatic device. There is also the problem of dismantling the automaton which exposes the watchmaker to the problem of untimely unwinding of the barrel spring. Furthermore, in the event that a pawl is provided to keep the barrel spring in tension in addition to the aforementioned device, the watchmaker should then act simultaneously on two independent devices distant from each other to disarm this spring : it should act on the one hand on the sliding axis, and on the other hand on the ratchet himself. It can therefore be seen that this solution is not satisfactory either, in particular in terms of maintainability.

Le but de l'invention est de fournir un système permettant de remédier aux inconvénients mentionnés précédemment et d'améliorer les systèmes connus de l'art antérieur. En particulier, l'invention propose un système permettant à un mouvement de fonctionner indépendamment de son dispositif d'automate, tout en évitant des phénomènes d'usure de dentures et en permettant un désarmage maîtrisé du barillet par un horloger.The object of the invention is to provide a system which makes it possible to remedy the drawbacks mentioned above and to improve the systems known from the prior art. In particular, the invention provides a system allowing a movement to operate independently of its automatic device, while avoiding tooth wear phenomena and allowing controlled disarming of the barrel by a watchmaker.

Selon un premier aspect de l'invention, un système est défini par la revendication 1.According to a first aspect of the invention, a system is defined by claim 1.

Différents modes de réalisation du système selon le premier aspect de l'invention sont définis par les revendications dépendantes 2 à 8.Different embodiments of the system according to the first aspect of the invention are defined by dependent claims 2 to 8.

Selon le premier aspect de l'invention, un mouvement est défini par la revendication 9.According to the first aspect of the invention, a movement is defined by claim 9.

Différents modes de réalisation du mouvement selon le premier aspect de l'invention sont définis par les revendications dépendantes 10 et 11.Different embodiments of the movement according to the first aspect of the invention are defined by the dependent claims 10 and 11.

Selon le premier aspect de l'invention, un procédé de fonctionnement est défini par la revendication 12.According to the first aspect of the invention, an operating method is defined by claim 12.

Différents modes de réalisation du procédé de fonctionnement selon le premier aspect de l'invention sont définis par les revendications dépendantes 13 et 14.Different embodiments of the operating method according to the first aspect of the invention are defined by the dependent claims 13 and 14.

Selon le premier aspect de l'invention, une pièce d'horlogerie est définie par la revendication 15.According to the first aspect of the invention, a timepiece is defined by claim 15.

Les figures annexées représentent, à titre d'exemples, deux modes de réalisation d'une pièce d'horlogerie selon l'invention.

  • La figure 1 est une vue schématique d'un premier mode de réalisation d'une pièce d'horlogerie selon l'invention comprenant un premier mode de réalisation d'un système.
  • Les figures 2 et 3 sont des vues de dessus et de dessous du premier mode de réalisation du système.
  • La figure 4 est une vue du premier mode de réalisation du système dans une première configuration.
  • Les figures 5 et 6 sont des vues du premier mode de réalisation du système dans une deuxième configuration.
  • La figure 7 est une vue schématique d'un deuxième mode de réalisation d'une pièce d'horlogerie selon l'invention comprenant un deuxième mode de réalisation du système.
  • Les figures 8 et 9 sont des vues d'un mode de réalisation d'un module d'automate préférentiellement utilisé dans le cadre de l'invention.
  • La figure 10 est une vue schématique d'un mode de réalisation d'une chaîne de remontage automatique selon l'invention.
The appended figures represent, by way of examples, two embodiments of a timepiece according to the invention.
  • The figure 1 is a schematic view of a first embodiment of a timepiece according to the invention comprising a first embodiment of a system.
  • The figures 2 and 3 are top and bottom views of the first embodiment of the system.
  • The figure 4 is a view of the first embodiment of the system in a first configuration.
  • The Figures 5 and 6 are views of the first embodiment of the system in a second configuration.
  • The figure 7 is a schematic view of a second embodiment of a timepiece according to the invention comprising a second embodiment of the system.
  • The figures 8 and 9 are views of an embodiment of a PLC module preferably used in the context of the invention.
  • The figure 10 is a schematic view of an embodiment of an automatic winding chain according to the invention.

Un premier mode de réalisation d'une pièce d'horlogerie 200 est décrit ci-après en référence aux figures 1 à 6. La pièce d'horlogerie est par exemple une montre, en particulier une montre bracelet. La pièce d'horlogerie comprend un mouvement 100. Le mouvement est de préférence un mouvement mécanique et automatique. Le mouvement comprend un bâti 4, un barillet 7, un rouage de finissage et un automate ou dispositif d'automate. Le dispositif d'automate peut être un module d'automate M' tel que représenté sur la figure 8. Par « automate » ou « dispositif d'automate », on entend, dans tout ce document, une chaîne cinématique 300, 300' de remontage automatique du mouvement ou une partie de chaîne cinématique de remontage automatique du barillet 7, 7' du mouvement. La partie de chaîne cinématique comprend au moins une masse oscillante 8 dont l'énergie mécanique est utilisée pour remonter le barillet.A first embodiment of a timepiece 200 is described below with reference to Figures 1 to 6 . The timepiece is for example a watch, in particular a wristwatch. The timepiece comprises a movement 100. The movement is preferably a mechanical and automatic movement. The movement includes a frame 4, a barrel 7, a gear train and an automaton or automaton device. The PLC device can be a PLC module M 'as shown in the figure 8 . By "automaton" or "automaton device" is meant, throughout this document, a kinematic chain 300, 300 'of automatic winding of the movement or a part of kinematic chain of automatic winding of the barrel 7, 7' of the movement. The kinematic chain part comprises at least one oscillating mass 8 whose mechanical energy is used to wind the barrel.

De préférence, l'automate comprend des mobiles inverseurs 11, 12. L'automate est donc de préférence bidirectionnel, c'est-à-dire qu'un rochet 6 de barillet 7 est entraîné dans un unique et même sens d'armage du ressort quel que soit le sens de rotation de la masse oscillante 8. Les deux mobiles inverseurs 11, 12 permettent d'une part l'entraînement du rochet par une transmission de mouvement de la masse oscillante 8 dans le sens d'armage d'un ressort de barillet et, d'autre part, l'immobilisation du rochet dans le sens du désarmage du ressort de barillet sous l'effet de la masse oscillante 8. En effet, la chaîne cinématique de remontage automatique du mouvement est irréversible dans ce mode de réalisation. Ainsi, l'automate est de préférence agencé pour immobiliser un rochet ou une roue dans un sens de désarmage du ressort de barillet. Dans cette construction particulière, l'automate peut être un module M' d'automate. Le module est par exemple prévu pour être fixé sur un pont de barillet 4 du mouvement comme représenté sur les figures 8 et 9. Le module comprend par exemple deux ébauches M1', M2' qui pivotent différents rouages de l'automate et la masse oscillante 8. Ainsi, la chaîne cinématique de remontage automatique peut éventuellement se substituer à un cliquet de rochet ou à un cliquet de tambour.Preferably, the automaton comprises reversing mobiles 11, 12. The automaton is therefore preferably bidirectional, that is to say that a ratchet 6 of barrel 7 is driven in a single and same winding direction of the spring whatever the direction of rotation of the oscillating weight 8. The two reversing mobiles 11, 12 allow on the one hand the ratchet to be driven by a movement transmission of the oscillating weight 8 in the winding direction of a barrel spring and, on the other hand, immobilization of the ratchet in the direction of disarming the barrel spring under the effect of the oscillating mass 8. In fact, the kinematic chain of automatic movement winding is irreversible in this mode of achievement. Thus, the automaton is preferably arranged to immobilize a ratchet or a wheel in a direction of disarming the barrel spring. In this particular construction, the automaton can be a module M ′ of automaton. The module is for example intended to be fixed to a barrel bridge 4 of the movement as shown in the figures 8 and 9 . The module comprises for example two blanks M1 ', M2' which pivot different cogs of the automaton and the oscillating mass 8. Thus, the automatic winding kinematic chain can possibly replace a ratchet ratchet or a drum ratchet.

Avantageusement, les mobiles inverseurs 11, 12 sont montés en série. Avantageusement encore, les mobiles inverseurs 11, 12 sont reliés à un pignon 1, notamment par l'intermédiaire d'une roue 13 qui est solidaire et coaxiale à ce dernier.Advantageously, the reversing mobiles 11, 12 are mounted in series. Advantageously also, the reversing mobiles 11, 12 are connected to a pinion 1, in particular by means of a wheel 13 which is integral and coaxial with the latter.

La chaîne cinématique 300 de remontage automatique ou chaîne de remontage automatique s'étend de la masse oscillante 8 au barillet 7, la masse oscillante et le barillet étant inclus dans la chaîne.The automatic winding kinematic chain 300 or automatic winding chain extends from the oscillating mass 8 to the barrel 7, the oscillating mass and the barrel being included in the chain.

Une chaîne cinématique de remontage manuel ou chaîne de remontage manuel (non représenté) s'étend d'un élément manipulable directement par l'utilisateur, comme une couronne, au barillet 7, l'élément manipulable et le barillet étant inclus dans la chaîne.A manual winding kinematic chain or manual winding chain (not shown) extends from an element which can be manipulated directly by the user, such as a crown, to the barrel 7, the manipulable element and the barrel being included in the chain.

Le mouvement comprend un premier mode de réalisation d'un système 10 comprenant :

  • un dispositif 110 de cliquet pour une première roue 6 d'une première partie 301 de chaîne de remontage 300 du barillet horloger 7 ;
  • un dispositif 120 d'embrayage d'une deuxième partie 302 de chaîne de remontage 300 du barillet horloger 7 à la première partie 301 de chaîne 300 cinématique de remontage d'un barillet horloger 7 ; et
  • un dispositif 130 de couplage du dispositif de cliquet et du dispositif d'embrayage, en particulier un dispositif 130 de couplage des états de fonctionnement du dispositif de cliquet et du dispositif d'embrayage.
The movement comprises a first embodiment of a system 10 comprising:
  • a pawl device 110 for a first wheel 6 of a first part 301 of the winding chain 300 of the timepiece barrel 7;
  • a device 120 for clutching a second part 302 of the winding chain 300 of the watch barrel 7 to the first part 301 of kinematic chain 300 for winding a watch barrel 7; and
  • a device 130 for coupling the ratchet device and the clutch device, in particular a device 130 for coupling the operating states of the ratchet device and the clutch device.

Ainsi, comme représenté sur la figure 10, la chaîne 300, 300' de remontage du barillet horloger 7 comprend :

  • une première partie 301 ; 301' de chaîne et une deuxième partie 302 ; 302' de chaîne, la deuxième partie de chaîne comprenant les mobiles inverseurs 11, 12, et
  • un dispositif 120, 120' d'embrayage horizontal de liaison des première et deuxième parties de chaîne.
So as shown in the figure 10 , the chain 300, 300 ′ for winding the watch barrel 7 comprises:
  • a first part 301; 301 'of chain and a second part 302; 302 'of chain, the second part of chain comprising the reversing mobiles 11, 12, and
  • a device 120, 120 ′ for the horizontal clutch connecting the first and second chain parts.

Les mobiles inverseurs sont préférentiellement agencés en série. Alternativement, ils peuvent être agencés en parallèle.The reversing mobiles are preferably arranged in series. Alternatively, they can be arranged in parallel.

Les mobiles inverseurs comprennent des leviers 111, 112 et 121, 122 coopérant respectivement avec des roues 113, 123 à dentures asymétriques.The reversing mobiles include levers 111, 112 and 121, 122 cooperating respectively with wheels 113, 123 with asymmetrical teeth.

Le dispositif 120 d'embrayage permet de distinguer une première partie 301 de chaîne 300 cinématique de remontage, notamment de remontage automatique, du barillet 7, d'une deuxième partie 302 de chaîne 300 cinématique de remontage, notamment de remontage automatique, du barillet 7. Le dispositif d'embrayage permet, dans un premier état dit « embrayé », de lier ou solidariser, notamment de lier ou solidariser cinématiquement, ces première et deuxième parties pour constituer la chaîne cinématique de remontage ou, dans un deuxième état dit « débrayé », de désolidariser, notamment désolidariser cinématiquement, ces première et deuxième parties.The clutch device 120 makes it possible to distinguish a first part 301 of kinematic winding chain 300, in particular automatic winding, from barrel 7, from a second part 302 of kinematic winding chain 300, in particular automatic winding, from barrel 7 The clutch device makes it possible, in a first state called “engaged”, to link or to join together, in particular to link or join together kinematically, these first and second parts to constitute the kinematic winding chain or, in a second state called "Disengaged", to separate, in particular kinematically separate, these first and second parts.

La première partie de chaîne cinématique s'étend du barillet 7 au dispositif d'embrayage.The first part of the kinematic chain extends from the barrel 7 to the clutch device.

La deuxième partie de chaîne cinématique s'étend de la masse oscillante 8 au dispositif d'embrayage.The second part of the kinematic chain extends from the oscillating mass 8 to the clutch device.

De préférence, le dispositif d'embrayage est un dispositif d'embrayage horizontal et/ou un dispositif d'embrayage comprenant une bascule 3 munie d'un renvoi 2 destiné à :

  • engrener simultanément avec un premier élément de la première partie de chaîne cinématique de remontage, notamment la première roue 6, et avec un deuxième élément de la deuxième partie de chaîne cinématique de remontage, notamment la deuxième roue ou pignon 1, dans une première position de la bascule définissant le premier état embrayé du dispositif d'embrayage, comme cela est représenté sur la figure 5 ; et
  • ne pas engrener avec le premier élément de la première partie de chaîne cinématique de remontage et/ou n'engrener qu'avec le deuxième élément de la deuxième partie de chaîne cinématique de remontage, dans une deuxième position de la bascule définissant le deuxième état débrayé du dispositif d'embrayage, comme cela est représenté sur la figure 4.
Preferably, the clutch device is a horizontal clutch device and / or a clutch device comprising a rocker 3 provided with a reference 2 intended for:
  • simultaneously mesh with a first element of the first part of the winding kinematic chain, in particular the first wheel 6, and with a second element of the second part of the winding kinematic chain, in particular the second wheel or pinion 1, in a first position the rocker defining the first engaged state of the clutch device, as shown in the figure 5 ; and
  • not to mesh with the first element of the first part of the winding kinematic chain and / or to mesh only with the second element of the second part of the winding kinematic chain, in a second position of the rocker defining the second disengaged state of the clutch device, as shown in the figure 4 .

Le renvoi 2 est préférentiellement pivoté sur la bascule 3. La bascule est elle-même montée pivotante selon un axe 3a sur un bâti ou une ébauche du mouvement, notamment sur un pont 4 de barillet. Alternativement, la bascule pourrait être pivotée sur le cliquet ou réciproquement. Alternativement, le renvoi 2 peut être guidé au sein d'une découpe oblongue dans le bâti du mouvement et dont l'étendue correspond sensiblement à la course angulaire de la bascule 3.The reference 2 is preferably pivoted on the lever 3. The lever is itself pivotally mounted along an axis 3a on a frame or a draft of the movement, in particular on a barrel bridge 4. Alternatively, the rocker could be pivoted on the ratchet or vice versa. Alternatively, reference 2 can be guided within a cutout oblong in the frame of the movement and the extent of which corresponds substantially to the angular travel of the lever 3.

Ainsi, le renvoi 2 est déplacé dans le plan du bâti du mouvement selon l'état du dispositif d'embrayage.Thus, the reference 2 is moved in the plane of the frame of the movement according to the state of the clutch device.

La bascule 3 coopère avec un ressort 5a de cliquet. Le ressort est préférentiellement fixé sur une ébauche du mouvement et est agencé pour agir sur le dispositif d'embrayage, en particulier sur la bascule, pour le ramener dans une position de repos ou état embrayé représenté sur la figure 1. Dans cette configuration, une conformation 3c de la bascule formant butée (représentée sur la figure 6) est en contact contre une butée 4b (représentée sur la figure 6) prévue sur le bâti du mouvement, en particulier sur une ébauche, notamment sur le pont de barillet. La butée 3c peut être, par exemple, une paroi de goupille de pivotement du renvoi 2. La butée 4b peut être, par exemple, une paroi d'alésage. La butée 3c et la butée 4b sont agencées de façon à garantir un entraxe aussi précis que possible entre le renvoi 2 et la première roue 6 et assurant ainsi un bon engrènement du renvoi et de la première roue.The lever 3 cooperates with a pawl spring 5a. The spring is preferably fixed on a blank of the movement and is arranged to act on the clutch device, in particular on the rocker, to bring it back to a rest position or engaged state represented on the figure 1 . In this configuration, a conformation 3c of the rocker forming a stop (shown in the figure 6 ) is in contact against a stop 4b (shown on the figure 6 ) provided on the movement frame, in particular on a blank, in particular on the barrel bridge. The stop 3c can be, for example, a pivot pin wall of the gear 2. The stop 4b can be, for example, a bore wall. The stop 3c and the stop 4b are arranged so as to guarantee a spacing as precise as possible between the gear 2 and the first wheel 6 and thus ensuring a good meshing of the gear and the first wheel.

L'action de rappel est produite ou non selon l'état du dispositif de cliquet comme décrit plus en détail plus bas. Ce ressort de cliquet fait aussi partie du dispositif de couplage qui est décrit plus en détail plus bas.The recall action is produced or not depending on the state of the pawl device as described in more detail below. This pawl spring is also part of the coupling device which is described in more detail below.

De préférence, le renvoi 2 présente un diamètre supérieur au pignon 1.Preferably, the reference 2 has a diameter greater than the pinion 1.

De préférence, le dispositif de cliquet 110 permet d'immobiliser la première roue 6 de la première partie de chaîne cinématique de remontage du barillet horloger 7. La première roue est avantageusement un rochet 6 de barillet.Preferably, the ratchet device 110 makes it possible to immobilize the first wheel 6 of the first part of the kinematic chain for winding the watch barrel 7. The first wheel is advantageously a ratchet 6 of the barrel.

Le dispositif de cliquet comprend un cliquet 5 muni d'une dent ou un bec 50a et un ressort 5a de rappel du cliquet vers une position de repos (représentée sur la figure 1) correspondant à l'état activé du dispositif de cliquet et dans laquelle la dent interfère avec une denture 6a de la première roue 6. Dans cet état activé, le cliquet interdit la rotation de la première roue 6 dans un sens de rotation, notamment le sens antihoraire comme représenté sur la figure 1, correspondant au désarmage du ressort de barillet 7. Dans la position de repos, le cliquet est en contact contre une butée 4a prévue sur le bâti du mouvement, notamment sur le pont de barillet. Le cliquet et le ressort sont agencés de sorte que le cliquet est rappelé vers sa position de repos par le ressort 5a lorsque le cliquet se trouve dans un état décliqueté, puis le cliquet est rappelé (alternativement ou complémentairement) vers sa position de repos par l'action du ressort de barillet via la première roue 6 lorsque le cliquet interfère avec la denture 6a. En effet, dans la position de repos, le ressort 5a peut ne plus agir sur le cliquet comme représenté sur la figure 1.The pawl device comprises a pawl 5 provided with a tooth or a spout 50a and a spring 5a for returning the pawl to a rest position (represented on the figure 1 ) corresponding to the activated state of the pawl device and in which the tooth interferes with a toothing 6a of the first wheel 6. In this activated state, the pawl prohibits rotation of the first wheel 6 in a direction of rotation, in particular the counterclockwise as shown in the figure 1 , corresponding to the disarming of the barrel spring 7. In the rest position, the pawl is in contact with a stop 4a provided on the movement frame, in particular on the barrel bridge. The pawl and the spring are arranged so that the pawl is returned to its rest position by the spring 5a when the pawl is in a disengaged state, then the pawl is returned (alternately or additionally) to its rest position by the action of the barrel spring via the first wheel 6 when the pawl interferes with the toothing 6a. Indeed, in the rest position, the spring 5a may no longer act on the pawl as shown in the figure 1 .

Le cliquet est par exemple un levier 5c pivoté sur un pont de barillet. Le levier comprend un premier bras terminé par au moins une dent apte à interférer avec la denture de la première roue. Le levier comprend un deuxième bras agencé de sorte à coopérer avec la butée 4a pour définir la position de repos du cliquet. Le levier comprend un troisième bras agencé de sorte à coopérer par appui sur le ressort 5a lorsque le dispositif de cliquet est notamment désactivé. Enfin, le levier peut comprendre un quatrième bras agencé de sorte à être manipulable par un horloger, notamment manipulable par l'horloger via un outil.The pawl is for example a lever 5c pivoted on a barrel bridge. The lever comprises a first arm terminated by at least one tooth capable of interfering with the toothing of the first wheel. The lever comprises a second arm arranged so as to cooperate with the stop 4a to define the rest position of the pawl. The lever comprises a third arm arranged so as to cooperate by pressing on the spring 5a when the pawl device is notably deactivated. Finally, the lever may include a fourth arm arranged so as to be manipulated by a watchmaker, in particular manipulated by the watchmaker via a tool.

Lorsque la première roue 6 est entraînée dans un sens de rotation inverse à celui représenté sur la figure 1, correspondant à l'armage du ressort de barillet 7, le cliquet est positionné dans une deuxième position représentée sur les figures 4 et 5. Cette position est une position décliquetée correspondant à un état désactivé du cliquet.When the first wheel 6 is driven in a direction of rotation opposite to that shown in the figure 1 , corresponding to the winding of the barrel spring 7, the pawl is positioned in a second position depicted on figures 4 and 5 . This position is a clicked position corresponding to a deactivated state of the pawl.

Le dispositif de couplage permet de coupler ou de lier logiquement les états du dispositif de cliquet et du dispositif d'embrayage.The coupling device makes it possible to logically couple or link the states of the ratchet device and of the clutch device.

Le dispositif 130 de couplage est agencé de sorte à maintenir un état embrayé du dispositif 120 d'embrayage lorsque le dispositif de cliquet est activé. Ainsi, lorsque le cliquet est dans un état activé comme représenté sur la figure 1, le dispositif de couplage contraint le dispositif d'embrayage à se trouver dans l'état embrayé.The coupling device 130 is arranged so as to maintain a engaged state of the clutch device 120 when the pawl device is activated. So, when the pawl is in an activated state as shown on the figure 1 , the coupling device forces the clutch device to be in the engaged state.

Le dispositif 130 de couplage est de plus agencé de sorte à autoriser un état embrayé et un état débrayé du dispositif 120 d'embrayage lorsque le dispositif de cliquet est désactivé. Ainsi, lorsque le cliquet est dans un état désactivé comme représenté sur les figures 4 et 5, le dispositif de couplage ne contraint pas le dispositif d'embrayage à se trouver dans l'état embrayé ou dans l'état débrayé. Le dispositif d'embrayage peut se trouver dans l'un ou l'autre des états embrayé et débrayé selon d'autres considérations ou facteurs. En particulier, dans cette configuration, l'état du dispositif d'embrayage est avantageusement commandé ou déterminé par les états des première et deuxième parties de la chaîne de remontage automatique. Un entraînement de la première partie de la chaîne de remontage automatique (dû à un remontage manuel, donc sans entraînement de la deuxième partie de la chaîne de remontage automatique) provoque le débrayage du dispositif d'embrayage. A l'inverse, un entraînement de la deuxième partie de la chaîne de remontage automatique (dû à un mouvement de la masse oscillante) provoque l'embrayage du dispositif d'embrayage.The coupling device 130 is further arranged so as to allow a engaged state and a disengaged state of the clutch device 120 when the pawl device is deactivated. Thus, when the pawl is in a deactivated state as shown on the figures 4 and 5 , the coupling device does not force the clutch device to be in the engaged state or in the disengaged state. The clutch device may be in either of the engaged and disengaged states depending on other considerations or factors. In particular, in this configuration, the state of the clutch device is advantageously controlled or determined by the states of the first and second parts of the automatic winding chain. A drive of the first part of the automatic winding chain (due to manual winding, therefore without driving the second part of the automatic winding chain) causes the clutch device to disengage. Conversely, a drive of the second part of the automatic winding chain (due to a movement of the oscillating weight) causes the clutch device to engage.

Dans le premier mode de réalisation, le dispositif 130 de couplage comprend une portion 71 de ressort 5a de rappel du dispositif de cliquet coopérant par contact avec une portion 72 du dispositif d'embrayage, notamment une portion 72 de bascule 3 du dispositif d'embrayage. Le dispositif d'embrayage et le ressort sont agencés de sorte que les portions soient en contact lorsque le cliquet est activé et que ce contact détermine l'état embrayé du dispositif d'embrayage, en particulier la position de la bascule 3 correspondant à l'état embrayé du dispositif d'embrayage.In the first embodiment, the coupling device 130 comprises a portion 71 of spring 5a for returning the pawl device cooperating by contact with a portion 72 of the clutch device, in particular a portion 72 of rocker 3 of the clutch device . The clutch device and the spring are arranged so that the portions are in contact when the pawl is activated and that this contact determines the engaged state of the clutch device, in particular the position of the rocker 3 corresponding to the clutch condition of the clutch device.

Un deuxième mode de réalisation d'une pièce d'horlogerie 200' est décrit ci-après en référence à la figure 7. La pièce d'horlogerie est par exemple une montre, en particulier une montre bracelet. La pièce d'horlogerie comprend un mouvement 100'. Le mouvement est un mouvement mécanique et automatique. Le mouvement comprend un bâti, un barillet 7, un rouage de finissage et un automate ou dispositif d'automate.A second embodiment of a timepiece 200 ′ is described below with reference to the figure 7 . The timepiece is for example a watch, in particular a wristwatch. The timepiece includes a 100 'movement. The movement is a mechanical and automatic movement. The movement includes a frame, a barrel 7, a gear train and an automaton or automaton device.

Dans ce deuxième mode de réalisation, les éléments identiques ou similaires aux éléments du premier mode de réalisation portent les mêmes références que celles des éléments du premier mode de réalisation. De plus, dans ce deuxième mode de réalisation, les éléments ayant des fonctions identiques ou similaires à celles d'autres éléments du premier mode de réalisation portent des références qui sont celles des éléments du premier mode de réalisation auxquelles un « ' » a été ajouté.In this second embodiment, the elements identical or similar to the elements of the first embodiment bear the same references as those of the elements of the first embodiment. In addition, in this second embodiment, the elements having identical or similar functions to those of other elements of the first embodiment bear references which are those of the elements of the first embodiment to which a "'" has been added. .

Le mouvement comprend un deuxième mode de réalisation du système 10' comprenant :

  • le dispositif 110' de cliquet ;
  • le dispositif 120' d'embrayage ; et
  • le dispositif 130' de couplage du dispositif de cliquet et du dispositif d'embrayage.
The movement includes a second embodiment of the system 10 ′ comprising:
  • the ratchet device 110 ';
  • the clutch device 120 '; and
  • the device 130 ′ for coupling the ratchet device and the clutch device.

Dans ce deuxième mode de réalisation, le ressort 5a' agit sur la bascule 3 par l'intermédiaire d'un cliquet 5' qui prend la forme d'un levier 5c'. Le levier 5c' est un bras du dispositif de cliquet 110'. Une portion 71' du bras coopère par contact avec une portion 72' du dispositif d'embrayage, notamment une portion de bascule du dispositif d'embrayage ou un flanc de bascule du dispositif d'embrayage. La portion 71' est par exemple une extrémité du bras. Le principe de fonctionnement d'un tel dispositif est similaire à celui du premier mode de réalisation. La figure 7 illustre ce deuxième mode de réalisation au repos, dans une configuration similaire à celle de la figure 1. Dans cette position de repos, le levier 5c' est en contact contre une butée 4a prévue sur le bâti du mouvement, notamment sur le pont de barillet. Alternativement, le levier 5c' pourrait buter à l'encontre de la bascule 3, notamment par le biais des portions 71' et 72'. Dans cette hypothèse, la position de repos est définie par le contact du levier et de la bascule.In this second embodiment, the spring 5a 'acts on the rocker 3 by means of a pawl 5' which takes the form of a lever 5c '. The lever 5c 'is an arm of the ratchet device 110'. A portion 71 'of the arm cooperates by contact with a portion 72' of the clutch device, in particular a rocker portion of the clutch device or a rocker flank of the clutch device. The portion 71 'is for example one end of the arm. The operating principle of such a device is similar to that of the first embodiment. The figure 7 illustrates this second embodiment at rest, in a configuration similar to that of the figure 1 . In this rest position, the lever 5c 'is in contact with a stop 4a provided on the movement frame, in particular on the barrel bridge. Alternatively, the lever 5c 'could abut against the lever 3, in particular by means of the portions 71' and 72 '. In this hypothesis, the rest position is defined by the contact of the lever and the rocker.

Ainsi, dans ce deuxième mode de réalisation, le dispositif de couplage 130' comprend une portion 71' du dispositif de cliquet et une portion 72' du dispositif d'embrayage.Thus, in this second embodiment, the coupling device 130 'comprises a portion 71' of the pawl device and a portion 72 'of the clutch device.

De préférence, les autres éléments du deuxième mode de réalisation sont identiques ou similaires aux éléments du premier mode de réalisation décrits plus haut.Preferably, the other elements of the second embodiment are identical or similar to the elements of the first embodiment described above.

Quel que soit le mode de réalisation, le système ne requiert pas de ressort supplémentaire qui viendrait s'ajouter à celui nécessaire au fonctionnement du dispositif de cliquet, notamment au ressort 5a ou 5a' de cliquet. Quel que soit le mode de réalisation, la construction est donc particulièrement compacte car elle met à profit un dispositif préexistant pour générer une fonction de débrayage supplémentaire. Par ailleurs, un ressort additionnel risquerait de dégrader le rendement de la chaîne cinématique d'automate du fait d'un couple résistif supplémentaire, notamment si ce ressort prend la forme d'un clinquant de friction disposé sur la bascule de débrayage ou sous la forme de pinces prévues pour agir sur le pivotement du renvoi 2. La solution est donc particulièrement avantageuse en matière de construction et de performance.Whatever the embodiment, the system does not require an additional spring which would be added to that necessary for the operation of the pawl device, in particular at the pawl spring 5a or 5a '. Whatever the embodiment, the construction is therefore particularly compact because it takes advantage of a pre-existing device to generate an additional declutching function. In addition, a additional spring would risk degrading the performance of the automatic drive train due to an additional resistive torque, in particular if this spring takes the form of a friction foil placed on the clutch release lever or in the form of clamps provided for act on the pivoting of the reference 2. The solution is therefore particularly advantageous in terms of construction and performance.

Dans les deux modes de réalisation décrits, la première partie de chaîne de remontage automatique est très limitée : elle ne comprend que le barillet 7 et le rochet de barillet 6. Ainsi, le dispositif d'embrayage coopère directement ou engrène avec le rochet 6. Toutefois, il est tout à fait envisageable de prévoir un ou plusieurs renvois entre l'entrée de la première partie de chaîne de remontage automatique et le rochet. Un barillet intermédiaire pourrait par exemple être interposé entre l'entrée de la première partie de chaîne de remontage automatique et le rochet. Il est également possible de prévoir un armage du ressort de barillet directement par le tambour de barillet (le rochet servant à transmettre l'énergie au rouage de finissage du mouvement, notamment dans le cas d'un mouvement doté d'au moins deux barillets).In the two embodiments described, the first part of the automatic winding chain is very limited: it only comprises the barrel 7 and the barrel ratchet 6. Thus, the clutch device cooperates directly or meshes with the ratchet 6. However, it is entirely conceivable to provide one or more references between the entry of the first part of the automatic winding chain and the ratchet. An intermediate barrel could for example be interposed between the entry of the first part of the automatic winding chain and the ratchet. It is also possible to provide a winding of the barrel spring directly by the barrel drum (the ratchet serving to transmit the energy to the gear train for finishing the movement, in particular in the case of a movement provided with at least two barrels) .

De même, dans les deux modes de réalisation décrits, le dispositif de cliquet coopère directement avec la denture du rochet de barillet 6. Toutefois, il est tout à fait envisageable de prévoir que le dispositif de cliquet coopère directement avec n'importe quelle roue à rotation unidirectionnelle de la chaîne de remontage, en particulier avec n'importe quelle roue de la première partie de la chaîne de remontage automatique, ou encore avec n'importe quelle roue à rotation unidirectionnelle de la chaîne de remontage manuel.Similarly, in the two embodiments described, the pawl device cooperates directly with the teeth of the barrel ratchet 6. However, it is entirely conceivable to provide that the pawl device cooperates directly with any wheel with unidirectional rotation of the winding chain, in particular with any wheel of the first part of the automatic winding chain, or even with any wheel with unidirectional rotation of the manual winding chain.

Par « cliquet », nous entendons ici un composant ou un assemblage prévu pour maintenir sous tension le ressort de barillet. Le cliquet peut être, comme dans les modes de réalisation décrits, un assemblage de plusieurs pièces, en particulier un levier muni d'un bec indexant la denture d'une roue de la première partie de chaîne de remontage sous l'action d'un ressort. Alternativement, le cliquet peut être un ressort-lame muni d'une ou plusieurs dents indexant la denture d'une roue de la première partie de chaîne de remontage.By “ratchet”, we mean here a component or an assembly intended to keep the barrel spring under tension. The ratchet can be, as in the embodiments described, an assembly of several parts, in particular a lever provided with a spout indexing the teeth of a wheel of the first part of the winding chain under the action of a spring. Alternatively, the pawl may be a leaf spring provided with one or more teeth indexing the toothing of a wheel of the first part of the winding chain.

Avantageusement, quel que soit le mode de réalisation du mouvement le dispositif de cliquet est agencé de sorte à être actionnable alors que le dispositif d'automate est assemblé sur le reste du mouvement.Advantageously, whatever the embodiment of the movement, the pawl device is arranged so as to be actuable while the automaton device is assembled on the rest of the movement.

Un mode d'exécution d'un procédé de fonctionnement d'un système décrit précédemment est expliqué ci-après.An embodiment of a method of operating a system described above is explained below.

Les figures 1 et 7 illustrent le système au repos. Dans cette configuration, le bec ou la dent 50a du cliquet 5 ou le bec ou la dent 50a' du cliquet 5', en particulier du levier 5c,' est en prise avec la denture 6a de la roue 6. Le levier est donc capable, en coopération avec la butée 4a du pont 4 de barillet, de retenir la roue 6 qui tend à tourner dans un sens prédéfini sous l'effet du couple produit par le ressort du barillet. Dans cette configuration, le ressort 5a est sans effet sur le cliquet. Alternativement, le ressort 5a pourrait agir sur le cliquet. La denture 2a du renvoi 2 est en prise respectivement avec :

  • la denture 1a du pignon 1 qui constitue la sortie de la deuxième partie de la chaîne de remontage automatique, et
  • la denture 6a de la roue 6.
Pour ce faire, la bascule 3 est positionnée sous l'effet du ressort 5a ou du levier 5c' qui est en contact avec une portion de bascule.The figures 1 and 7 illustrate the system at rest. In this configuration, the spout or the tooth 50a of the pawl 5 or the spout or the tooth 50a 'of the pawl 5', in particular of the lever 5c, 'is in engagement with the toothing 6a of the wheel 6. The lever is therefore capable , in cooperation with the stop 4a of the barrel bridge 4, to retain the wheel 6 which tends to rotate in a predefined direction under the effect of the torque produced by the barrel spring. In this configuration, the spring 5a has no effect on the pawl. Alternatively, the spring 5a could act on the pawl. The toothing 2a of the reference 2 is engaged respectively with:
  • the teeth 1a of the pinion 1 which constitutes the output of the second part of the automatic winding chain, and
  • the teeth 6a of the wheel 6.
To do this, the rocker 3 is positioned under the effect of the spring 5a or of the lever 5c 'which is in contact with a portion of rocker.

Lors du remontage manuel, le procédé de fonctionnement comprend les étapes suivantes :

  • escamotage du cliquet 5, 5' sous l'effet de la rotation de la première roue 6,
  • libération du dispositif d'embrayage 120, 120' sous l'effet du dispositif de couplage 130, 130', et
  • débrayage du dispositif d'embrayage 120, 120' sous l'effet de la rotation de la première roue 6.
During manual winding, the operating process includes the following steps:
  • retraction of the pawl 5, 5 ′ under the effect of the rotation of the first wheel 6,
  • release of the clutch device 120, 120 'under the effect of the coupling device 130, 130', and
  • disengagement of the clutch device 120, 120 ′ under the effect of the rotation of the first wheel 6.

Lors du remontage manuel de la montre comme illustré sur la figure 4, la première roue est entraînée en sens horaire par une chaîne cinématique de remontage manuel non représentée. La rotation en sens horaire de la première roue 6 induit d'une part le dégagement du bec 50a ; 50a' du cliquet 5 ; 5' de la denture 6a, et d'autre part le dégagement de la denture 2a du renvoi 2 de la denture 6a. En effet, dans cette configuration, le ressort 5a ou le levier 5c' s'écarte de la bascule 3 sous l'effet de la denture 6a sur le bec 50a, 50a' du dispositif de cliquet. Ceci autorise le pivotement de la bascule 3 en sens antihoraire selon l'axe 3a sous l'effet d'un effort résultant R des forces de la première roue 6 qui s'appliquent sur le renvoi 2. Le dispositif d'embrayage passe donc à l'état débrayé. La première partie de chaîne de remontage est ainsi désolidarisée de la deuxième partie de chaîne de remontage.When manually winding the watch as illustrated in the figure 4 , the first wheel is driven clockwise by a kinematic manual winding chain not shown. The clockwise rotation of the first wheel 6 induces on the one hand the release of the spout 50a; 50a 'of the pawl 5; 5 'of the toothing 6a, and on the other hand the release of the toothing 2a of the reference 2 of the toothing 6a. Indeed, in this configuration, the spring 5a or the lever 5c 'departs from the rocker 3 under the effect of the toothing 6a on the spout 50a, 50a' of the pawl device. This allows the pivoting of the rocker 3 counterclockwise along the axis 3a under the effect of a force resulting from the forces of the first wheel 6 which are applied to the reference 2. The clutch device therefore switches to the disengaged state. The first part of the winding chain is thus separated from the second part of the winding chain.

Il convient de préciser que dans la configuration du remontage manuel, la bascule 3 ne peut être rappelée par le ressort 5a ou par le levier 5c'. Ainsi, la bascule 3 ne peut « osciller » entre ses positions représentées sur les figures 1 et 4 et les dentures 2a et 6a ne peuvent venir en contact lors du remontage manuel. Ceci évite tout risque d'usure prématurée de ces dentures.It should be noted that in the manual winding configuration, the lever 3 cannot be returned by the spring 5a or by the lever 5c '. Thus, flip-flop 3 cannot "oscillate" between its positions represented on the figures 1 and 4 and the teeth 2a and 6a cannot come into contact during manual winding. This avoids any risk of premature wear of these teeth.

Lors du remontage automatique, le procédé de fonctionnement comprend les étapes suivantes :

  • escamotage du cliquet 5, 5' sous l'effet de la rotation de la première roue 6,
  • libération du dispositif d'embrayage 120, 120' sous l'effet du dispositif de couplage 130, 130', et
  • embrayage du dispositif d'embrayage 120, 120' sous l'effet de la rotation de la deuxième roue.
During automatic winding, the operating process includes the following steps:
  • retraction of the pawl 5, 5 ′ under the effect of the rotation of the first wheel 6,
  • release of the clutch device 120, 120 'under the effect of the coupling device 130, 130', and
  • clutch of the clutch device 120, 120 ′ under the effect of the rotation of the second wheel.

Lors du remontage automatique comme représenté sur la figure 5, la première roue 6 est entraînée en sens horaire par la deuxième partie de chaîne de remontage, notamment sous l'effet du pignon 1 et du renvoi 2 qui tournent respectivement en sens horaire et antihoraire. La denture 2a est en prise avec la denture 6a. Cet engrènement est pérennisé par l'orientation de la résultante R' des forces qui s'appliquent sur le renvoi 2. Une légère friction du renvoi 2 sur la bascule peut également être prévue. Ainsi, même lorsque le ressort 5a ou le levier 5c' s'écarte de la bascule 3 sous l'effet de la denture 6a sur le dispositif de cliquet, notamment après une rotation initiale de la première roue provoquant le passage du dispositif de cliquet à l'état désactivé, l'engrènement des dentures 2a et 6a est établi et maintenu.During automatic winding as shown in the figure 5 , the first wheel 6 is driven clockwise by the second part of the winding chain, in particular under the effect of the pinion 1 and the gear 2 which rotate respectively clockwise and counterclockwise. The toothing 2a is in engagement with the toothing 6a. This meshing is perpetuated by the orientation of the resultant R 'of the forces which are applied to the gear 2. A slight friction of the gear 2 on the rocker can also be expected. Thus, even when the spring 5a or the lever 5c 'deviates from the rocker 3 under the effect of the toothing 6a on the ratchet device, in particular after an initial rotation of the first wheel causing the ratchet device to pass through. the deactivated state, the meshing of the teeth 2a and 6a is established and maintained.

De nouveau, en l'absence de remontage (automatique ou manuel), c'est-à-dire dès l'arrêt du remontage, le dispositif de couplage 130, 130' agit sur le dispositif d'embrayage 120 ; 120' de sorte à rappeler le dispositif d'embrayage 120, 120' dans l'état embrayé correspondant à l'état activé du dispositif de cliquet 110, 110'. Le dispositif d'embrayage revient dans son état embrayé représenté sur la figure 1 sous l'effet de la restitution du ressort 5a ou 5a'.Again, in the absence of reassembly (automatic or manual), that is to say as soon as the reassembly is stopped, the coupling device 130, 130 ′ acts on the clutch device 120; 120 'so as to recall the clutch device 120, 120' in the engaged state corresponding to the activated state of the ratchet device 110, 110 '. The clutch device returns to its engaged state shown in the figure 1 under the effect of the return of the spring 5a or 5a '.

Pour désarmer le ressort de barillet, il suffit à l'horloger de remonter légèrement le ressort de barillet par le mécanisme de remontage manuel. Cette action désactive le dispositif de cliquet et provoque le passage du dispositif d'embrayage à l'état débrayé. L'horloger doit ensuite maintenir le dispositif de cliquet à l'état désactivé tout en arrêtant de remonter le barillet le temps que le ressort de barillet se désarme. L'horloger n'a donc que des actions limitées à réaliser sur le mouvement pour permettre le dévidage du ressort de barillet.To disarm the barrel spring, the watchmaker just has to wind the barrel spring slightly by the manual winding mechanism. This action deactivates the ratchet device and causes the passage of the clutch device in disengaged state. The watchmaker must then keep the ratchet device in the deactivated state while stopping to wind the barrel until the barrel spring disarms. The watchmaker therefore has only limited actions to perform on the movement to allow the unwinding of the barrel spring.

Pour ce faire, le mouvement étant assemblé, le cliquet 5, 5' reste de préférence accessible par l'horloger comme représenté sur la figure 9. Cette accessibilité est de préférence possible dans certaines positions de la masse oscillante, en particulier dans la position de la masse oscillante représentée sur la figure 9. Ainsi, la solution offre la possibilité à l'horloger de désarmer le ressort de barillet alors même que le module d'automate est encore en place sur le pont 4 de barillet.To do this, the movement being assembled, the pawl 5, 5 ′ preferably remains accessible by the watchmaker as shown in the figure 9 . This accessibility is preferably possible in certain positions of the oscillating mass, in particular in the position of the oscillating mass shown on the figure 9 . Thus, the solution offers the watchmaker the possibility of disarming the barrel spring while the automaton module is still in place on the barrel bridge 4.

De préférence, quel que soit le mode de réalisation ou la variante de réalisation, dans la première position de la bascule définissant un état embrayé du dispositif d'embrayage, le dispositif d'embrayage, en particulier la bascule, est en contact contre une butée 4b.Preferably, whatever the embodiment or the variant, in the first position of the lever defining a engaged state of the clutch device, the clutch device, in particular the lever, is in contact with a stop. 4b.

Le système décrit précédemment présente la particularité de permettre le débrayage de la chaîne de remontage automatique lors de l'escamotage du cliquet par l'horloger, si bien que le désarmage du ressort de barillet est rendu possible en un minimum d'opération, alors même que le dispositif d'automate est encore en place sur le mouvement d'horlogerie. Le dispositif de débrayage présente, par ailleurs, la spécificité d'être activé lors de l'actionnement du dispositif de remontage manuel si bien que le dispositif d'automate n'est pas sollicité lors du remontage manuel. Une telle réalisation est ainsi particulièrement avantageuse dans le cadre d'un mouvement d'horlogerie doté d'un dispositif d'automate bidirectionnel mettant en oeuvre des mobiles d'embrayage ou mobiles « inverseurs », dont les vitesses de rotation sont optimisées. Bien entendu, une telle réalisation peut également être mise en œuvre au sein d'un mouvement d'horlogerie doté d'un autre type d'automate, tel que l'automate de type Pellaton. Le mouvement d'horlogerie est préférentiellement mécanique. Il peut également être électromécanique.The system described above has the particularity of allowing the disengaging of the automatic winding chain when the pawl is retracted by the watchmaker, so that disarming the barrel spring is made possible in a minimum of operation, even then that the automaton device is still in place on the watch movement. The declutching device has, moreover, the specificity of being activated when the manual winding device is actuated so that the automatic device is not stressed during manual winding. Such an embodiment is thus particularly advantageous within the framework of a timepiece movement provided with a bidirectional automatic device employing clutch mobiles or “reversing” mobiles, whose rotation speeds are optimized. Of course, such an embodiment can also be implemented within a timepiece movement equipped with another type of automaton, such as the Pellaton type automaton. The watch movement is preferably mechanical. It can also be electromechanical.

Le système décrit précédemment est également particulièrement avantageux au vu de sa simplicité et de sa compacité.The system described above is also particularly advantageous in view of its simplicity and compactness.

Claims (15)

  1. System (10; 10') comprising:
    - a pawl device (110; 110') for a first wheel (6) of a first part (301; 301') of a drivetrain (300; 300') for winding a mainspring (7);
    - a clutch device (120; 120') for engaging a second part (302; 302') of a drivetrain (300; 300') for winding the mainspring (7) with the first part (301; 301') of the drivetrain (300; 300') for winding the mainspring (7); and
    - a coupling device (130; 130') for coupling the pawl device and the clutch device, particularly a device (130; 130') for coupling the states of operation of the pawl device and of the clutch device.
  2. System according to the preceding claim, wherein the coupling device (130) is arranged in such a way as to keep the clutch device (120) in the engaged state when the pawl device is in an activated state in which at least one tooth of the pawl cooperates with a toothset (6a) of the first wheel and/or in such a way as to allow the clutch device (120) an engaged state and a disengaged state when the pawl device is deactivated.
  3. System according to one of the preceding claims, wherein the pawl device comprises a pawl (5; 5') equipped with at least one tooth (50a; 50a') and a return spring (5a; 5a') for returning the pawl to a rest position corresponding to the activated state of the pawl device in which position the at least one tooth interferes with a toothset (6a) of the first wheel (6).
  4. System according to the preceding claim, wherein, in the rest position, the pawl is in contact with a banking (4a).
  5. System according to one of the preceding claims, wherein the clutch device is a horizontal clutch device and/or a clutch device comprising a rocker lever (3) equipped with an intermediate wheel (2) intended to:
    - mesh simultaneously with the first wheel (6) and with the second wheel (1) in a first position of the rocker lever defining an engaged state of the clutch device; and
    - not mesh with the first wheel (6) and/or mesh only with the second wheel (1) in a second position of the rocker lever defining a disengaged state of the clutch device.
  6. System according to one of the preceding claims, wherein the first wheel (6) is a ratchet (6), notably a barrel ratchet.
  7. System according to one of the preceding claims, wherein the coupling device (130) comprises a pawl device return spring portion (71) collaborating by contact with a portion (72) of the clutch device, notably a clutch device rocker lever portion (72).
  8. System according to one of Claims 1 to 6, wherein the coupling device (130') comprises an arm (5c') of the pawl device, a portion (71') of the arm collaborating by contact with a portion (72') of the clutch device, notably a rocker lever portion of the clutch device.
  9. Automatic watch movement (100; 100') comprising a system according to one of the preceding claims.
  10. Watch movement (100; 100') according to the preceding claim, wherein it comprises an automatic winding device equipped with reversing wheels (11, 12) notably an automatic winding module equipped with reversing wheels (11, 12).
  11. Watch movement according to Claim 9 or 10, in which the pawl device can be actuated by the watchmaker, whereas the automatic winding module is assembled on the movement.
  12. Method of operation of a system according to one of Claims 1 to 8 or of a movement according to one of Claims 9 to 11 or of a timepiece according to claim 15, the method comprising the following steps during manual winding:
    - retraction of the pawl under the effect of the rotation of the first wheel,
    - release of the clutch device under the effect of the coupling device, and
    - disengagement of the clutch device under the effect of the rotation of the first wheel.
  13. Method of operation according to the preceding claim, the method comprising the following steps during automatic winding:
    - retraction of the pawl under the effect of the rotation of the first wheel,
    - release of the clutch device under the effect of the coupling device, and
    - engagement of the clutch device under the effect of the rotation of a second wheel of the second drivetrain part for winding the mainspring (7).
  14. Method of operation according to Claim 12 or 13, the method comprising the following step:
    - in the absence of winding, actuating the coupling device on the clutch device so as to return the clutch device to an engaged state, notably an engaged state corresponding to the activated state of the pawl device.
  15. Timepiece (200; 200'), notably wristwatch, comprising a movement according to one of Claims 9 to 11 or a system according to one of Claims 1 to 8.
EP17155907.3A 2017-02-13 2017-02-13 Winding system of a timepiece Active EP3361323B1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP17155907.3A EP3361323B1 (en) 2017-02-13 2017-02-13 Winding system of a timepiece
JP2018021525A JP7164957B2 (en) 2017-02-13 2018-02-09 watch winding system
CN201810146975.3A CN108427259B (en) 2017-02-13 2018-02-12 System for winding a timepiece
US15/894,136 US11112757B2 (en) 2017-02-13 2018-02-12 System for winding a timepiece

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP17155907.3A EP3361323B1 (en) 2017-02-13 2017-02-13 Winding system of a timepiece

Publications (2)

Publication Number Publication Date
EP3361323A1 EP3361323A1 (en) 2018-08-15
EP3361323B1 true EP3361323B1 (en) 2020-01-29

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP17155907.3A Active EP3361323B1 (en) 2017-02-13 2017-02-13 Winding system of a timepiece

Country Status (4)

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US (1) US11112757B2 (en)
EP (1) EP3361323B1 (en)
JP (1) JP7164957B2 (en)
CN (1) CN108427259B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4024139A1 (en) * 2020-12-29 2022-07-06 The Swatch Group Research and Development Ltd Embedded winding mechanism for a watch

Family Cites Families (13)

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Publication number Priority date Publication date Assignee Title
CH305464A (en) 1952-11-06 1955-02-28 Bueren Watch Company S A Self-winding and manual winding watch.
CH378229A (en) 1962-07-19 1964-07-15 Epple Kg Otero Uhren Automatic winding device with oscillating mass for clockworks, in particular for wristwatches
JPS493332Y1 (en) * 1969-11-14 1974-01-26
JPH11174163A (en) * 1997-12-11 1999-07-02 Seiko Instruments Inc Automatic winding and manual winding structures
JPH11183645A (en) * 1997-12-18 1999-07-09 Seiko Instruments Inc Self-winding watch
JP3496544B2 (en) * 1998-04-17 2004-02-16 セイコーエプソン株式会社 Mainspring device and clock
DE602005006733D1 (en) * 2005-03-31 2008-06-26 Zenith Internat S A Repeating clock with a minute repeating mechanism
JP2006342865A (en) * 2005-06-08 2006-12-21 Seiko Instruments Inc Ball bearing device and automatic winding rotational weight structure provided with ball bearing device and self-winder
EP2226687B1 (en) 2009-03-03 2013-05-15 Montres Jaquet Droz SA Disengaging device for timepiece mechanism, and watch movement comprising this device
EP2367080B1 (en) * 2010-03-17 2019-01-16 Glashütter Uhrenbetrieb GmbH Device for controlling and adjusting a timepiece movement
EP2503408B1 (en) * 2011-03-22 2014-10-15 De Grisogono S.A. Control device for clock movement
JP6450179B2 (en) 2014-12-16 2019-01-09 セイコーインスツル株式会社 Hoisting mechanism, movement and watch
EP3104232B1 (en) * 2015-06-11 2017-11-29 Société anonyme de la Manufacture d'Horlogerie Audemars Piguet & Cie Timepiece reverser and self-winding watch comprising same

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Title
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Also Published As

Publication number Publication date
US20180231935A1 (en) 2018-08-16
CN108427259A (en) 2018-08-21
JP2018155738A (en) 2018-10-04
CN108427259B (en) 2022-06-24
JP7164957B2 (en) 2022-11-02
EP3361323A1 (en) 2018-08-15
US11112757B2 (en) 2021-09-07

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