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EP3705949B1 - Torque limiter mechanism for a timepiece - Google Patents

Torque limiter mechanism for a timepiece Download PDF

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Publication number
EP3705949B1
EP3705949B1 EP19160841.3A EP19160841A EP3705949B1 EP 3705949 B1 EP3705949 B1 EP 3705949B1 EP 19160841 A EP19160841 A EP 19160841A EP 3705949 B1 EP3705949 B1 EP 3705949B1
Authority
EP
European Patent Office
Prior art keywords
wheel
arm
rotation
mobile
relative
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
EP19160841.3A
Other languages
German (de)
French (fr)
Other versions
EP3705949A1 (en
Inventor
Julien Christan
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.)
ETA SA Manufacture Horlogere Suisse
Original Assignee
ETA SA Manufacture Horlogere Suisse
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 ETA SA Manufacture Horlogere Suisse filed Critical ETA SA Manufacture Horlogere Suisse
Priority to EP19160841.3A priority Critical patent/EP3705949B1/en
Priority to JP2020034659A priority patent/JP6944558B2/en
Priority to US16/805,904 priority patent/US11768464B2/en
Priority to CN202010142462.2A priority patent/CN111665704B/en
Publication of EP3705949A1 publication Critical patent/EP3705949A1/en
Application granted granted Critical
Publication of EP3705949B1 publication Critical patent/EP3705949B1/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
    • G04B11/00—Click devices; Stop clicks; Clutches
    • G04B11/001—Clutch mechanism between two rotating members with transfer of movement in both directions, possibly with limitation on the transfer of power
    • G04B11/003—Clutch mechanism between two rotating members with transfer of movement in both directions, possibly with limitation on the transfer of power with friction member, e.g. with spring action
    • 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
    • G04B13/00—Gearwork
    • G04B13/005—Gearwork where a revolution in both directions is changed into a revolution in one direction
    • 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
    • G04B13/00—Gearwork
    • G04B13/02—Wheels; Pinions; Spindles; Pivots
    • G04B13/021—Wheels; Pinions; Spindles; Pivots elastic fitting with a spindle, axis or shaft
    • G04B13/023—Wheels; Pinions; Spindles; Pivots elastic fitting with a spindle, axis or shaft allowing rotational slipping when a threshold torque is exceeded
    • 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
    • G04B3/00—Normal winding of clockworks by hand or mechanically; Winding up several mainsprings or driving weights simultaneously
    • G04B3/06—Keys or the like with means preventing overwinding
    • 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
    • G04B3/00—Normal winding of clockworks by hand or mechanically; Winding up several mainsprings or driving weights simultaneously
    • G04B3/08—Normal winding of clockworks by hand or mechanically; Winding up several mainsprings or driving weights simultaneously by parts of the cases
    • G04B3/10—Protecting means preventing overwinding

Definitions

  • the invention relates to an internal torque limiter mechanism for a watch movement, said torque limiter mechanism comprising a first mobile comprising a first felloe and arranged to pivot about a first axis of rotation relative to a structure or a plate or a bridge, said first mobile comprising at least one first elastic arm which, in the free state of said first mobile, projects in the direction of said first axis of rotation relative to said first felloe, and at least one second mobile comprising a second felloe and arranged to pivot relative to said structure about a second axis of rotation parallel to or coincident with said first axis of rotation in at least partial overlap with said first mobile.
  • the invention also relates to a barrel winding device comprising a control member arranged to be operated by a user and to drive an input pinion meshing with said first mobile or said second mobile of such a torque limiting mechanism, which said device comprises.
  • the invention also relates to a clockwork movement comprising, between an input mechanism and an output mechanism, such a torque limiting mechanism.
  • the invention also relates to a timepiece, in particular a watch, comprising at least one such torque limiting mechanism, and/or at least one such movement.
  • the invention relates to the field of watch mechanisms, and more particularly to the protection of certain mechanisms against excessive torque input, in particular energy recharging mechanisms such as winding mechanisms, or correction and/or display mechanisms, in particular calendar mechanisms or the like.
  • Some watch mechanisms are designed to store and restore significant quantities of energy, however their dimensioning is limited by that of the case of the timepiece concerned, and it is not possible to apply high safety coefficients to them to protect them against excessive torque applied to them.
  • the significant bulk of the mechanisms Known torque limiters restrict the integration of complications into the timepiece.
  • the user does not have the possibility of knowing whether he has correctly and safely carried out a complete manipulation, in particular for winding a mechanism.
  • the document CH703483A2 on behalf of SEIKO discloses a wheel with a torque limiting mechanism comprising an engagement arm portion extending from a proximal end portion to a distal end portion equipped with an engagement projection, which is elastically engaged in a pressure-engaged portion.
  • the projection is detached from the engaged portion to rotate the crown wheels when a torque exceeding a threshold value is exerted.
  • a force directed from the proximal end portion to the distal end portion is applied to the projection when a manual winding torque is applied to the mechanism and adapted to separate the projection from the engaged portion.
  • the invention proposes to produce a torque limiting device which is very compact, economical and whose use allows the user to easily determine whether a maneuver has been carried out correctly.
  • the invention relates to an internal torque limiting mechanism for a clock movement, according to claim 1
  • the invention also relates to a barrel arming device comprising such a torque limiting mechanism.
  • the invention also relates to a clockwork movement comprising, between an input mechanism and an output mechanism, such a torque limiting mechanism.
  • the invention also relates to a timepiece, in particular a watch, comprising at least one such torque limiting mechanism, and/or at least one such movement.
  • the invention relates to a torque limiter mechanism 100 for a watch.
  • This mechanism 100 comprises a first mobile 1, which comprises a first rim 10 and is arranged to pivot about a first axis of rotation D1 relative to a structure 4 or a plate or a bridge.
  • This first mobile 1 comprises at least one first elastic arm 31, which, in the free state of the first mobile 1, projects in the direction of the first axis of rotation D1 relative to the first felloe 10. More particularly and non-limitingly, this first elastic arm 31 is movable in a first cutout 41 of the first mobile 1.
  • the mechanism 100 comprises at least one second mobile 2, which comprises a second rim 20 and arranged to pivot relative to the structure 4 around a second axis of rotation D2, parallel or coincident with the first axis of rotation D1, at least partially overlapping the first.
  • the mechanism 100 comprises a travel limiter 5, which is fixed to the structure 4, and which is arranged to hold the second mobile 2 on the first mobile 1 for their cooperation in friction support in certain relative angular positions.
  • the invention is here more particularly described in the simplified case where the mechanism 100 only comprises the first mobile 1 and the second mobile 2, the person skilled in the art will be able to extrapolate this to a greater number of mobiles, for a mechanism comprising more than one input and one output.
  • the invention proposes to vary the friction force between the first mobile 1 and the second mobile 2.
  • the second mobile 2 and/or the travel limiter 5 and/or the structure 4 comprises at least one relief forming a ramp, and which projects in a direction parallel to or coincident with that of the first axis of rotation D1.
  • This relief is arranged to, in certain relative angular positions of the component carrying this relief relative to the first mobile 1, cooperate in frictional support with at least one first elastic arm 31 of said first mobile 1, and, in other relative angular positions, allow a relative travel without friction between the first mobile 1 and the component carrying this relief.
  • the mechanism constitutes a simple ratchet, arranged to vary the axial position of the first elastic arm of the first mobile 1, or to vary the axial position of the entire first mobile 1 and thus vary the friction force applied to the second mobile 2.
  • the invention relates more particularly to the case where the second mobile 2 comprises at least one second arm 32 forming a ramp and which, in the free state of the second mobile 2, projects in the direction of the second axis of rotation D2 relative to the second rim 20.
  • this second arm 32 is a second elastic arm 32. More particularly still, this second arm 32 is a second elastic arm 32 movable in a second cutout 42.
  • first mobile 1 and the second mobile 2 When only the first mobile 1 and the second mobile 2 have reliefs projecting relative to their respective rim, they are mounted head to tail, with each first elastic arm 31 projecting towards the second mobile 2, and with each second arm 32 projecting towards the first mobile 1.
  • the second axis of rotation D2 is distant from the first axis of rotation D1.
  • the second axis of rotation D2 is merged with the first axis of rotation D1.
  • each second arm 32 is arranged to cooperate successively, during a relative rotation of the second mobile 2 with respect to the first mobile 1, cyclically with the first serge 10, a first elastic arm 31, and a first cutout 41 before returning in cooperation with the first serge 10.
  • first mobile 1 and the second mobile 2 are arranged, if they are coaxial, to rotate in the same direction: either they both rotate in the same direction, or one rotates and the other is blocked. These mobiles can, in other applications where they are not coaxial, rotate in opposite directions to each other.
  • Each first elastic arm 31 of the first mobile defines a first ramp, which begins at a joint 310 with the first felloe 10, and rises to a first peak. More particularly and as visible in the figures, this first elastic arm 31 is a cantilever arm, and the peak coincides with the distal end of this first arm 31, the edge of which defines a first front surface 311.
  • any relief of an opposing mobile, in particular the second mobile 2 during a rotation always in the same direction of each mobile, climbs this first ramp, then falls after passing the peak; depending on the configuration, this relief falls on the first felloe 10, or in the first cutout 41. This jump corresponds to the disengagement of the mechanism.
  • the first elastic arm 31 comprises an ascending ramp from the first felloe 10 to the first apex, then a descending ramp from the first apex to the first felloe 10.
  • the relief of the second mobile 2 can be formed in different ways, the figures represent this relief in the form of a second elastic arm 32 similar to the first elastic arm 31 of the first mobile 1, this configuration is advantageous because it makes it possible to use, for the first mobile 1 and the second mobile 2, identical components, at least at the level of these reliefs cooperating with each other; of course, depending on the application, the first mobile 1 and the second mobile 2 can comprise different teeth, depending on the components of the movement with which they cooperate.
  • each first elastic arm 31 is arranged to cooperate successively, during a relative rotation of the second mobile 2 relative to the first mobile 1, with the second felloe 20, a second arm 32, and a second cutout 42 which comprises the second mobile 2, before returning in cooperation with the second serge 20.
  • the arrangement with a first front surface 311, and a second similar front surface 312 for the second elastic arm allows, in a particular direction of rotation, the cooperation in abutment of one with the other, and the driving in rotation by simple support, without friction, of one mobile by the other, whereas, in the opposite direction of rotation, the elastic arms cooperate progressively until a release position where one of the mobiles is no longer driven by the other.
  • each first elastic arm 31 is a substantially annular sector which extends substantially concentrically relative to the first axis of rotation D1. Its radial section may be constant, or progressive or degressive, so as to obtain variable friction according to the relative angle between the opposing mobiles.
  • the upper surface of the first elastic arm 31 extends, radially relative to the first axis of rotation D1, perpendicular thereto. In a variant not illustrated, this first elastic arm 31 may also be warped and sloping.
  • Each second elastic arm 32 may be formed in a similar manner. And in particular, more particularly, each second elastic arm 32 extends substantially concentrically relative to the second axis of rotation D2.
  • At least one first elastic arm 31 and/or at least one second arm 32 extends substantially radially relative to the axis of rotation of the mobile which carries it.
  • the mechanism 100 comprises, in at least partial superposition in a direction parallel to the axis of rotation of each of them, more than two mobiles arranged to cooperate two by two in friction support, and all mounted captive between the structure 4 and the travel limiter 5, and at least one intermediate mobile between the end mobiles comprises at least one elastic arm projecting on each side of its rim, in its axial direction: this is the case of the second mobile 2 of the figure 18 , which cooperates, on the upper side of the second rim 20, with the first mobile 1, and, on the lower side of the second rim 20, with the relief 39 projecting from the third rim 90 of a third mobile 9 resting on the structure 4.
  • the invention also relates to a barrel winding device 200, comprising a control member 201 which is arranged to be operated by a user, such as a control rod, a pusher, a target, a bezel, or the like, and to drive an input pinion 202 meshing with the first mobile 1 or the second mobile 2 of such a torque limiter mechanism 100, which this device 200 comprises.
  • the other mobile of this mechanism 100, the second mobile 2 or respectively the first mobile 1 is arranged to drive a ratchet 203 of a motor or striking barrel, the whole being assembled on the structure 4 which is, in this particular case, a barrel bridge.
  • the travel limiter 5 is advantageously a screw fixed on this structure, which facilitates the assembly of the entire mechanism 100 and allows disassembly.
  • the usual crown wheel is split into two boards, constituting the first mobile 1 and the second mobile 2, and advantageously in a very economical embodiment, first 31 and second 32 elastic arms are cut and folded in each of them. These boards are then mounted head to tail in place of the crown wheel.
  • the first mobile 1 meshes with a winding pinion 202
  • the second mobile 2 meshes with the barrel ratchet 203.
  • the first mobile 1 and the second mobile 2 are secured by means of the elastic arms 31 and 32, which transmit a torque by friction. If the torque applied to the winding pinion 202 is too great, the elastic arms 31 and 32 deform and slide against each other, until the system disengages. When disengaging, the jump made by the elastic arms 31 and 32 during the unlatching produces a characteristic noise which informs the user that the barrel is fully reloaded.
  • each mobile 1, 2 has three elastic arms 31, 32. After disengagement, the first mobile 1 makes a third of a turn.
  • the clearance between the rims of the two mobiles is between 0.06 and 0.10 mm, and the axial elastic travel of each arm is half the value of this clearance.
  • the invention also relates to a clockwork movement 500 comprising, between an input mechanism 300 and an output mechanism 400, such a torque limiter mechanism 100.
  • the input mechanism 300 is a calendar or date mechanism
  • the output mechanism 400 is a month, or day of the week, or date display mechanism.
  • the torque limiter 100 is arranged to control, during any jump of an arm of a mobile 1 or 2 of the torque limiter 100, the advancement of one step of the display concerned.
  • the control of the correction of the day of the week display is a cyclic control for which the device according to the invention is well suited. In the same way, a clear adjustment of date correction can be obtained.
  • the invention is easily adaptable to any semi-instantaneous or trailing display: months, days, time zones, hours, or others.
  • the invention also makes it possible to produce an inverter for mono- or bidirectional winding: the first mobile 1 meshes with an automatic winding oscillating weight, and the second mobile 2 meshes with the winding gear train.
  • the system clicks and the second mobile 2 does not rotate.
  • the first mobile 1 rotates in the counterclockwise direction, it drives the second mobile 2 through the distal ends 311, 321, of the elastic arms 31 and 32.
  • the movement 500 comprises an automatic winding oscillating weight and an automatic winding gear train
  • a torque limiter 100 comprising elastic arms 31, 32, constitutes an inverter for mono- or bidirectional winding, the first mobile 1 meshing with the automatic winding oscillating weight, and the second mobile 2 meshing with the winding gear train, such that, when the first mobile 1 rotates in the clockwise direction, or respectively counterclockwise, the system unlatches and the second mobile 2 does not rotate, and when the first mobile 1 rotates in the counterclockwise direction, or respectively clockwise, it drives the second mobile 2 through distal ends 311, 321, which the arms respectively comprise elastics 31, 32.
  • the invention also makes it possible to produce a blocker, for example to prevent a barrel from discharging.
  • the ratchet can be arranged with elastic arms, and the barrel bridge with notches, so that the ends of the arms fall into the notches.
  • the movement 500 comprises at least one barrel and one ratchet arranged on a barrel bridge, and such a torque limiter 100 constitutes a blocker, to prevent a barrel from discharging, the ratchet constituting one of the mobiles 1, 2, and comprising arms elastic, and the barrel bridge constituting a structure 4 and comprising notches, so that the ends of the arms fall into the notches.
  • the input mechanism 300 is a minute repeater trigger mechanism
  • the output mechanism 400 is a minute repeater mechanism.
  • the torque limiter 100 is then arranged to control, during any jump of an arm of a mobile 1 or 2 of the torque limiter 100, the tilting of an isolator, which the minute repeater mechanism comprises, to prohibit the control of another repeater during the execution of a repeater strike.
  • the invention also relates to a timepiece 1000 comprising at least one such torque limiter mechanism 100, and/or at least one such movement 500. More particularly, this timepiece 1000 is a watch.
  • the proposed mechanism is very simple, because it does not require any elastic return means other than those carried by the first mobile 1, and preferably the second mobile 2.
  • the coaxial arrangement of the mobiles is particularly advantageous, because the forces exerted on the mobiles are symmetrical, and the transmissible force is maximum.
  • the arrangement in the clockwork movement involves offsetting the first 1 and the second 2 mobiles, it is advantageous to increase the number of elastic arms to avoid blind spots.
  • the production of mobiles can come, very economically, from stamping, the mobiles can be identical, and possibly differ only by their teeth.
  • the invention allows the user to ensure the proper completion of the function he is performing, winding, display correction, triggering, and ensures the protection of the components of the mechanism concerned against any excessive torque. For example, the user can wind a barrel fully without fear of breaking a component.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Transmission Devices (AREA)
  • Electromechanical Clocks (AREA)
  • Motorcycle And Bicycle Frame (AREA)
  • Braking Arrangements (AREA)

Description

Domaine de l'inventionField of invention

L'invention concerne un mécanisme limiteur de couple interne pour mouvement d'horlogerie, ledit mécanisme limiteur de couple comportant un premier mobile comportant une première serge et agencé pour pivoter autour d'un premier axe de rotation par rapport à une structure ou une platine ou un pont, ledit premier mobile comportant au moins un premier bras élastique qui, à l'état libre dudit premier mobile, est saillant selon la direction dudit premier axe de rotation par rapport à ladite première serge, et au moins un deuxième mobile comportant une deuxième serge et agencé pour pivoter par rapport à ladite structure autour d'un deuxième axe de rotation parallèle ou confondu avec ledit premier axe de rotation en recouvrement au moins partiel avec ledit premier mobile.The invention relates to an internal torque limiter mechanism for a watch movement, said torque limiter mechanism comprising a first mobile comprising a first felloe and arranged to pivot about a first axis of rotation relative to a structure or a plate or a bridge, said first mobile comprising at least one first elastic arm which, in the free state of said first mobile, projects in the direction of said first axis of rotation relative to said first felloe, and at least one second mobile comprising a second felloe and arranged to pivot relative to said structure about a second axis of rotation parallel to or coincident with said first axis of rotation in at least partial overlap with said first mobile.

L'invention concerne encore un dispositif d'armage de barillet comportant un organe de commande agencé pour être manœuvré par un utilisateur et entraîner un pignon d'entrée engrenant avec ledit premier mobile ou ledit deuxième mobile d'un tel mécanisme limiteur de couple, que comporte ledit dispositif.The invention also relates to a barrel winding device comprising a control member arranged to be operated by a user and to drive an input pinion meshing with said first mobile or said second mobile of such a torque limiting mechanism, which said device comprises.

L'invention concerne encore un mouvement d'horlogerie comportant, entre un mécanisme d'entrée et un mécanisme de sortie, un tel mécanisme limiteur de couple.The invention also relates to a clockwork movement comprising, between an input mechanism and an output mechanism, such a torque limiting mechanism.

L'invention concerne encore une pièce d'horlogerie, notamment une montre, comportant au moins un tel mécanisme limiteur de couple, et/ou au moins un tel mouvement.The invention also relates to a timepiece, in particular a watch, comprising at least one such torque limiting mechanism, and/or at least one such movement.

L'invention concerne le domaine des mécanismes d'horlogerie, et plus particulièrement la protection de certains mécanismes contre un apport de couple excessif, en particulier des mécanismes de rechargement en énergie tels que les mécanismes de remontage, ou encore des mécanismes de correction et/ou d'affichage, en particulier des mécanismes de calendrier ou similaires.The invention relates to the field of watch mechanisms, and more particularly to the protection of certain mechanisms against excessive torque input, in particular energy recharging mechanisms such as winding mechanisms, or correction and/or display mechanisms, in particular calendar mechanisms or the like.

Arrière-plan de l'inventionBackground of the invention

Certains mécanismes horlogers sont conçus pour emmagasiner et restituer des quantités importantes d'énergie, toutefois leur dimensionnement est limité par celui de la boîte de la pièce d'horlogerie concernée, et il n'est pas possible de leur appliquer des coefficients de sécurité élevés pour les protéger contre un couple excessif qui leur serait appliqué. L'encombrement important des mécanismes limiteurs de couple connus restreint l'intégration de complications dans la pièce d'horlogerie. De surcroît l'utilisateur n'a pas la possibilité de savoir s'il a correctement effectué, en toute sécurité, une manipulation complète, en particulier pour l'armage d'un mécanisme.Some watch mechanisms are designed to store and restore significant quantities of energy, however their dimensioning is limited by that of the case of the timepiece concerned, and it is not possible to apply high safety coefficients to them to protect them against excessive torque applied to them. The significant bulk of the mechanisms Known torque limiters restrict the integration of complications into the timepiece. In addition, the user does not have the possibility of knowing whether he has correctly and safely carried out a complete manipulation, in particular for winding a mechanism.

Le document CH703483A2 au nom de SEIKO décrit une roue avec un mécanisme de limitation de couple comprenant une partie de bras d'engagement s'étendant d'une partie d'extrémité proximale à une partie d'extrémité distale équipée d'une saillie d'engagement, qui est engagée élastiquement dans une partie engagée par pression. La saillie est détachée de la partie engagée pour faire tourner les roues de couronne lorsqu'un couple dépassant une valeur de seuil est exercé. Une force dirigée de la partie d'extrémité proximale vers la partie d'extrémité distale est appliquée à la projection lorsqu'un couple d'enroulement manuel est appliqué au mécanisme et adapté pour séparer la projection de la partie engagée.The document CH703483A2 on behalf of SEIKO discloses a wheel with a torque limiting mechanism comprising an engagement arm portion extending from a proximal end portion to a distal end portion equipped with an engagement projection, which is elastically engaged in a pressure-engaged portion. The projection is detached from the engaged portion to rotate the crown wheels when a torque exceeding a threshold value is exerted. A force directed from the proximal end portion to the distal end portion is applied to the projection when a manual winding torque is applied to the mechanism and adapted to separate the projection from the engaged portion.

Résumé de l'inventionSummary of the invention

L'invention se propose de réaliser un dispositif limiteur de couple, très compact, économique, et dont l'emploi permet à l'utilisateur de déterminer facilement le bon accomplissement d'une manoeuvre de sa part.The invention proposes to produce a torque limiting device which is very compact, economical and whose use allows the user to easily determine whether a maneuver has been carried out correctly.

A cet effet, l'invention concerne un mécanisme limiteur de couple interne pour mouvement d'horlogerie, selon la revendication 1For this purpose, the invention relates to an internal torque limiting mechanism for a clock movement, according to claim 1

L'invention concerne encore un dispositif d'armage de barillet comportant un tel mécanisme limiteur de couple.The invention also relates to a barrel arming device comprising such a torque limiting mechanism.

L'invention concerne encore un mouvement d'horlogerie comportant, entre un mécanisme d'entrée et un mécanisme de sortie, un tel mécanisme limiteur de couple.The invention also relates to a clockwork movement comprising, between an input mechanism and an output mechanism, such a torque limiting mechanism.

L'invention concerne encore une pièce d'horlogerie, notamment une montre, comportant au moins un tel mécanisme limiteur de couple, et/ou au moins un tel mouvement.The invention also relates to a timepiece, in particular a watch, comprising at least one such torque limiting mechanism, and/or at least one such movement.

Description sommaire des dessinsBrief description of the drawings

D'autres caractéristiques et avantages de l'invention apparaîtront à la lecture de la description détaillée qui va suivre, en référence aux dessins annexés, où :

  • la figure 1 représente, de façon schématisée, et en perspective, un mécanisme limiteur de couple selon l'invention, comportant un premier mobile supérieur et un deuxième mobile inférieur, qui sont maintenus en coopération de friction, au niveau de bras élastiques que comportent chacun d'eux, par un limiteur de course supérieur ici constitué par une vis à portée, et par une structure inférieure ici constituée par un pont ou similaire ;
  • la figure 2 représente, de façon schématisée et en coupe, la coopération des bras élastiques des deux mobiles de la figure 1 ;
  • la figure 3 représente, de façon schématisée et en vue en plan, le premier mobile de la figure 1 ;
  • la figure 4 représente, de façon schématisée et en coupe diamétrale, le mobile de la figure 3 ;
  • la figure 5 représente, de façon schématisée et en vue de côté, à l'état libre, le mobile de la figure 3 ;
  • la figure 6 représente, de façon schématisée et en perspective, un dispositif d'armage de barillet, comportant le mécanisme limiteur de couple de la figure 1, et comportant un organe de commande, ici constitué par une tige entraînant un pignon de remontoir agencé pour être manœuvré par un utilisateur et entraîner un pignon d'entrée engrenant avec le deuxième mobile, et où le premier mobile engrène avec un rochet de barillet ;
  • la figure 7 représente, de façon schématisée et en perspective, le dispositif d'armage de barillet de la figure 6 assemblé sur un pont barillet sur lequel pivotent les mobiles et le rochet, et qui supporte la vis à portée faisant limiteur de course;
  • la figure 8 représente, de façon schématisée et en vue de côté, le pignon de remontoir à dents de loup de la figure 6 ;
  • les figures 9 et 10 représentent, de façon similaire aux figures 1 et 2 respectivement, la coopération du premier mobile et du deuxième mobile en appui normal ;
  • les figures 11 et 12 représentent, de façon similaire aux figures 1 et 2 respectivement, la coopération du premier mobile et du deuxième mobile juste avant le débrayage;
  • les figures 13 et 14 représentent, de façon similaire aux figures 1 et 2 respectivement, la coopération du premier mobile et du deuxième mobile juste après le débrayage ;
  • la figure 15 représente, de façon schématisée et en coupe, le mécanisme de la figure 7 ;
  • la figure 16 représente, de façon schématisée et en perspective, une variante où le premier mobile et le deuxième mobile ne sont pas coaxiaux ;
  • la figure 17 représente, de façon schématisée et en perspective, une variante où le mécanisme limiteur de couple comporte trois mobiles empilés et coaxiaux ;
  • la figure 18 représente, de façon schématisée et en coupe éclatée, le mécanisme de la figure 17 ;
  • la figure 19 représente, de façon schématisée et en perspective éclatée, une variante où le mécanisme limiteur de couple comporte deux mobiles différents, l'un comportant des bras élastiques en arc circulaire, l'autre avec des bras élastiques radiaux ;
  • la figure 20 est un schéma-blocs représentant une montre comportant un mouvement qui comporte un dispositif d'armage de barillet, comportant un tel mécanisme limiteur de couple ;
  • la figure 21 est un schéma-blocs représentant une montre comportant un mouvement qui comporte un tel mécanisme limiteur de couple, entre un mécanisme d'entrée et un mécanisme de sortie.
Other features and advantages of the invention will become apparent upon reading the detailed description which follows, with reference to the appended drawings, where:
  • there figure 1 represents, schematically and in perspective, a torque limiter mechanism according to the invention, comprising a first upper mobile and a second lower mobile, which are held in frictional cooperation, at the level of elastic arms which each of them comprises, by an upper stroke limiter here constituted by a screw with reach, and by a lower structure here constituted by a bridge or similar;
  • there figure 2 represents, schematically and in section, the cooperation of the elastic arms of the two mobiles of the figure 1 ;
  • there figure 3 represents, schematically and in plan view, the first mobile of the figure 1 ;
  • there figure 4 represents, schematically and in diametrical section, the mobile of the figure 3 ;
  • there figure 5 represents, schematically and in side view, in the free state, the mobile of the figure 3 ;
  • there figure 6 represents, schematically and in perspective, a barrel arming device, comprising the torque limiting mechanism of the figure 1 , and comprising a control member, here constituted by a rod driving a winding pinion arranged to be operated by a user and drive an input pinion meshing with the second mobile, and where the first mobile meshes with a barrel ratchet;
  • there figure 7 represents, in a schematic and perspective way, the barrel arming device of the figure 6 assembled on a barrel bridge on which the mobiles and the ratchet pivot, and which supports the screw within reach acting as a travel limiter;
  • there figure 8 represents, schematically and in side view, the wolf tooth winding pinion of the figure 6 ;
  • THE Figures 9 and 10 represent, in a similar way to Figures 1 and 2 respectively, the cooperation of the first mobile and the second mobile in normal support;
  • THE Figures 11 and 12 represent, in a similar way to Figures 1 and 2 respectively, the cooperation of the first mobile and the second mobile just before the disengagement;
  • THE Figures 13 and 14 represent, in a similar way to Figures 1 and 2 respectively, the cooperation of the first mobile and the second mobile just after the disengagement;
  • there figure 15 represents, in a schematic and cross-sectional manner, the mechanism of the figure 7 ;
  • there figure 16 represents, schematically and in perspective, a variant where the first mobile and the second mobile are not coaxial;
  • there figure 17 represents, schematically and in perspective, a variant where the torque limiter mechanism comprises three stacked and coaxial mobiles;
  • there figure 18 represents, in a schematic and exploded section, the mechanism of the figure 17 ;
  • there figure 19 represents, schematically and in exploded perspective, a variant where the torque limiter mechanism comprises two different mobiles, one comprising elastic arms in a circular arc, the other with radial elastic arms;
  • there figure 20 is a block diagram representing a watch comprising a movement which comprises a barrel winding device, comprising such a torque limiting mechanism;
  • there figure 21 is a block diagram representing a watch having a movement which includes such a torque limiting mechanism, between an input mechanism and an output mechanism.

Description détaillée des modes de réalisation préférésDetailed description of preferred embodiments

L'invention concerne un mécanisme limiteur de couple 100 d'horlogerie. Ce mécanisme 100 comporte un premier mobile 1, lequel comporte une première serge 10 et est agencé pour pivoter autour d'un premier axe de rotation D1 par rapport à une structure 4 ou une platine ou un pont.The invention relates to a torque limiter mechanism 100 for a watch. This mechanism 100 comprises a first mobile 1, which comprises a first rim 10 and is arranged to pivot about a first axis of rotation D1 relative to a structure 4 or a plate or a bridge.

Ce premier mobile 1 comporte au moins un premier bras élastique 31, qui, à l'état libre du premier mobile 1, est saillant selon la direction du premier axe de rotation D1 par rapport à la première serge 10. Plus particulièrement et non limitativement, ce premier bras élastique 31 est mobile dans une première découpe 41 du premier mobile 1.This first mobile 1 comprises at least one first elastic arm 31, which, in the free state of the first mobile 1, projects in the direction of the first axis of rotation D1 relative to the first felloe 10. More particularly and non-limitingly, this first elastic arm 31 is movable in a first cutout 41 of the first mobile 1.

Le mécanisme 100 comporte au moins un deuxième mobile 2, lequel comporte une deuxième serge 20 et agencé pour pivoter par rapport à la structure 4 autour d'un deuxième axe de rotation D2, parallèle ou confondu avec le premier axe de rotation D1, en recouvrement au moins partiel avec le premier.The mechanism 100 comprises at least one second mobile 2, which comprises a second rim 20 and arranged to pivot relative to the structure 4 around a second axis of rotation D2, parallel or coincident with the first axis of rotation D1, at least partially overlapping the first.

Le mécanisme 100 comporte un limiteur de course 5, qui est fixé sur la structure 4, et qui est agencé pour maintenir le deuxième mobile 2 sur le premier mobile 1 pour leur coopération en appui de friction dans certaines positions angulaires relatives.The mechanism 100 comprises a travel limiter 5, which is fixed to the structure 4, and which is arranged to hold the second mobile 2 on the first mobile 1 for their cooperation in friction support in certain relative angular positions.

L'invention est ici plus particulièrement décrite dans le cas simplifié où le mécanisme 100 ne comporte que le premier mobile 1 et le deuxième mobile 2, l'homme du métier saura l'extrapoler à un nombre de mobiles supérieur, pour un mécanisme comportant plus qu'une entrée et une sortie.The invention is here more particularly described in the simplified case where the mechanism 100 only comprises the first mobile 1 and the second mobile 2, the person skilled in the art will be able to extrapolate this to a greater number of mobiles, for a mechanism comprising more than one input and one output.

L'invention se propose de faire varier l'effort de friction entre le premier mobile 1 et le deuxième mobile 2.The invention proposes to vary the friction force between the first mobile 1 and the second mobile 2.

A cet effet, le deuxième mobile 2 et/ou le limiteur de course 5 et/ou la structure 4 comporte au moins un relief formant une rampe, et qui est saillant selon une direction parallèle ou confondue avec celle du premier axe de rotation D1. Ce relief est agencé pour, dans certaines positions angulaires relatives du composant porteur de ce relief par rapport au premier mobile 1, coopérer en appui de friction avec au moins un premier bras élastique 31 dudit premier mobile 1, et, dans d'autres positions angulaires relatives, autoriser une course relative sans friction entre le premier mobile 1 et le composant porteur de ce relief.For this purpose, the second mobile 2 and/or the travel limiter 5 and/or the structure 4 comprises at least one relief forming a ramp, and which projects in a direction parallel to or coincident with that of the first axis of rotation D1. This relief is arranged to, in certain relative angular positions of the component carrying this relief relative to the first mobile 1, cooperate in frictional support with at least one first elastic arm 31 of said first mobile 1, and, in other relative angular positions, allow a relative travel without friction between the first mobile 1 and the component carrying this relief.

Quand la structure 4 ou le limiteur de course 5 comporte un tel relief, le mécanisme constitue un cliquet simple, agencé pour faire varier la position axiale du premier bras élastique du premier mobile 1, ou pour faire varier la position axiale du premier mobile 1 tout entier et ainsi faire varier l'effort de friction appliqué sur le deuxième mobile 2.When the structure 4 or the travel limiter 5 comprises such a relief, the mechanism constitutes a simple ratchet, arranged to vary the axial position of the first elastic arm of the first mobile 1, or to vary the axial position of the entire first mobile 1 and thus vary the friction force applied to the second mobile 2.

L'invention concerne plus particulièrement le cas où le deuxième mobile 2 comporte au moins un deuxième bras 32 formant une rampe et qui, à l'état libre du deuxième mobile 2, est saillant selon la direction du deuxième axe de rotation D2 par rapport à la deuxième serge 20.The invention relates more particularly to the case where the second mobile 2 comprises at least one second arm 32 forming a ramp and which, in the free state of the second mobile 2, projects in the direction of the second axis of rotation D2 relative to the second rim 20.

Plus particulièrement, ce deuxième bras 32 est un deuxième bras élastique 32. Plus particulièrement encore, ce deuxième bras 32 est un deuxième bras élastique 32 mobile dans une deuxième découpe 42.More particularly, this second arm 32 is a second elastic arm 32. More particularly still, this second arm 32 is a second elastic arm 32 movable in a second cutout 42.

Quand seuls le premier mobile 1 et le deuxième mobile 2 comportent des reliefs saillants par rapport à leur serge respective, ils sont montés tête-bêche, avec chaque premier bras élastique 31 saillant vers le deuxième mobile 2, et avec chaque deuxième bras 32 saillant vers le premier mobile 1.When only the first mobile 1 and the second mobile 2 have reliefs projecting relative to their respective rim, they are mounted head to tail, with each first elastic arm 31 projecting towards the second mobile 2, and with each second arm 32 projecting towards the first mobile 1.

Dans une variante et tel que visible sur la figure 16, le deuxième axe de rotation D2 est distant du premier axe de rotation D1.In a variation and as visible on the figure 16 , the second axis of rotation D2 is distant from the first axis of rotation D1.

Dans une autre variante et tel que visible sur la plupart des autres figures, le deuxième axe de rotation D2 est confondu avec le premier axe de rotation D1.In another variant and as visible in most of the other figures, the second axis of rotation D2 is merged with the first axis of rotation D1.

Plus particulièrement, chaque deuxième bras 32 est agencé pour coopérer successivement, lors d'une rotation relative du deuxième mobile 2 par rapport au premier mobile 1, de façon cyclique avec la première serge 10, un premier bras élastique 31, et une première découpe 41 avant de revenir en coopération avec la première serge 10.More particularly, each second arm 32 is arranged to cooperate successively, during a relative rotation of the second mobile 2 with respect to the first mobile 1, cyclically with the first serge 10, a first elastic arm 31, and a first cutout 41 before returning in cooperation with the first serge 10.

On comprend que le premier mobile 1 et le deuxième mobile 2 sont agencés, s'ils sont coaxiaux, pour tourner dans le même sens : soit ils tournent tous les deux dans le même sens, soit l'un tourne et l'autre est bloqué. Ces mobiles peuvent, dans d'autres applications où ils ne sont pas coaxiaux, tourner en sens inverse l'un de l'autre.It is understood that the first mobile 1 and the second mobile 2 are arranged, if they are coaxial, to rotate in the same direction: either they both rotate in the same direction, or one rotates and the other is blocked. These mobiles can, in other applications where they are not coaxial, rotate in opposite directions to each other.

Chaque premier bras élastique 31 du premier mobile définit une première rampe, qui commence au niveau d'une articulation 310 avec la première serge 10, et s'élève jusqu'au niveau d'un premier sommet. Plus particulièrement et tel que visible sur les figures, ce premier bras élastique 31 est un bras en porte-à-faux, et le sommet coïncide avec l'extrémité distale de ce premier bras 31, dont le chant définit une première surface frontale 311. Dans cette variante particulière, tout relief d'un mobile antagoniste, en particulier le deuxième mobile 2, lors d'une rotation toujours dans le même sens de chaque mobile, gravit cette première rampe, puis chute après le passage du sommet ; selon la configuration ce relief chute sur la première serge 10, ou dans la première découpe 41. Ce saut correspond au débrayage du mécanisme.Each first elastic arm 31 of the first mobile defines a first ramp, which begins at a joint 310 with the first felloe 10, and rises to a first peak. More particularly and as visible in the figures, this first elastic arm 31 is a cantilever arm, and the peak coincides with the distal end of this first arm 31, the edge of which defines a first front surface 311. In this particular variant, any relief of an opposing mobile, in particular the second mobile 2, during a rotation always in the same direction of each mobile, climbs this first ramp, then falls after passing the peak; depending on the configuration, this relief falls on the first felloe 10, or in the first cutout 41. This jump corresponds to the disengagement of the mechanism.

Dans d'autres variantes non illustrées, le premier bras élastique 31 comporte une rampe ascendante depuis la première serge 10 jusqu'au premier sommet, puis une rampe descendante depuis le premier sommet jusqu'à la première serge 10. De la même façon, le relief du deuxième mobile 2 peut être constitué de différentes façons, les figures représentent ce relief sous forme d'un deuxième bras élastique 32 similaire au premier bras élastique 31 du premier mobile 1, cette configuration est avantageuse car elle permet d'utiliser, pour le premier mobile 1 et le deuxième mobile 2, des composants identiques, du moins au niveau de ces reliefs coopérant les uns avec les autres ; bien sûr, selon l'application, le premier mobile 1 et le deuxième mobile 2 peuvent comporter des dentures différentes, en fonction des composants du mouvement avec lesquels ils coopèrent.In other variants not illustrated, the first elastic arm 31 comprises an ascending ramp from the first felloe 10 to the first apex, then a descending ramp from the first apex to the first felloe 10. In the same way, the relief of the second mobile 2 can be formed in different ways, the figures represent this relief in the form of a second elastic arm 32 similar to the first elastic arm 31 of the first mobile 1, this configuration is advantageous because it makes it possible to use, for the first mobile 1 and the second mobile 2, identical components, at least at the level of these reliefs cooperating with each other; of course, depending on the application, the first mobile 1 and the second mobile 2 can comprise different teeth, depending on the components of the movement with which they cooperate.

Plus particulièrement, chaque premier bras élastique 31 est agencé pour coopérer successivement, lors d'une rotation relative du deuxième mobile 2 par rapport au premier mobile 1, avec la deuxième serge 20, un deuxième bras 32, et une deuxième découpe 42 que comporte le deuxième mobile 2, avant de revenir en coopération avec la deuxième serge 20.More particularly, each first elastic arm 31 is arranged to cooperate successively, during a relative rotation of the second mobile 2 relative to the first mobile 1, with the second felloe 20, a second arm 32, and a second cutout 42 which comprises the second mobile 2, before returning in cooperation with the second serge 20.

L'agencement avec une première surface frontale 311, et une deuxième surface frontale 312 similaire pour le deuxième bras élastique, permet, dans un sens de rotation particulier, la coopération en butée des unes avec les autres, et l'entraînement en rotation par appui simple, sans friction, d'un mobile par l'autre, alors que, dans le sens de rotation opposé, les bras élastiques coopèrent progressivement jusqu'à une position de décliquetage où l'un des mobiles n'est plus entraîné par l'autre.The arrangement with a first front surface 311, and a second similar front surface 312 for the second elastic arm, allows, in a particular direction of rotation, the cooperation in abutment of one with the other, and the driving in rotation by simple support, without friction, of one mobile by the other, whereas, in the opposite direction of rotation, the elastic arms cooperate progressively until a release position where one of the mobiles is no longer driven by the other.

Dans une variante particulière illustrée par les figures, chaque premier bras élastique 31 est un secteur sensiblement annulaire qui s'étend de façon sensiblement concentrique par rapport au premier axe de rotation D1. Sa section radiale peut être constante, ou bien progressive ou dégressive, de façon à obtenir une friction variable selon l'angle relatif entre les mobiles antagonistes. De préférence, la surface supérieure du premier bras élastique 31 s'étend, radialement par rapport au premier axe de rotation D1, perpendiculairement à celui-ci. Dans une variante non illustrée ce premier bras élastique 31 peut, encore, être gauchi et en dévers. Chaque deuxième bras élastique 32 peut être constitué de façon similaire. Et notamment, plus particulièrement, chaque deuxième bras élastique 32 s'étend de façon sensiblement concentrique par rapport au deuxième axe de rotation D2.In a particular variant illustrated by the figures, each first elastic arm 31 is a substantially annular sector which extends substantially concentrically relative to the first axis of rotation D1. Its radial section may be constant, or progressive or degressive, so as to obtain variable friction according to the relative angle between the opposing mobiles. Preferably, the upper surface of the first elastic arm 31 extends, radially relative to the first axis of rotation D1, perpendicular thereto. In a variant not illustrated, this first elastic arm 31 may also be warped and sloping. Each second elastic arm 32 may be formed in a similar manner. And in particular, more particularly, each second elastic arm 32 extends substantially concentrically relative to the second axis of rotation D2.

Dans une autre variante et tel que visible sur la figure 19, au moins un premier bras élastique 31 ou/et au moins un deuxième bras 32 s'étend de façon sensiblement radiale par rapport à l'axe de rotation du mobile qui le porte.In another variation and as visible on the figure 19 , at least one first elastic arm 31 and/or at least one second arm 32 extends substantially radially relative to the axis of rotation of the mobile which carries it.

Plus particulièrement, et tel que visible sur les figures 17 et 18, le mécanisme 100 comporte, en superposition au moins partielle selon une direction parallèle à l'axe de rotation de chacun d'eux, plus de deux mobiles agencés pour coopérer deux à deux en appui de friction, et tous montés prisonniers entre la structure 4 et le limiteur de course 5, et au moins un mobile intermédiaire entre les mobiles d'extrémité comporte au moins un bras élastique saillant de chaque côté de sa serge, selon sa direction axiale : c'est le cas du deuxième mobile 2 de la figure 18, qui coopère, du côté supérieure de la deuxième serge 20, avec le premier mobile 1, et, du côté inférieur de la deuxième serge 20, avec le relief 39 saillant de la troisième serge 90 d'un troisième mobile 9 en appui sur la structure 4.More particularly, and as visible on the figures 17 And 18 , the mechanism 100 comprises, in at least partial superposition in a direction parallel to the axis of rotation of each of them, more than two mobiles arranged to cooperate two by two in friction support, and all mounted captive between the structure 4 and the travel limiter 5, and at least one intermediate mobile between the end mobiles comprises at least one elastic arm projecting on each side of its rim, in its axial direction: this is the case of the second mobile 2 of the figure 18 , which cooperates, on the upper side of the second rim 20, with the first mobile 1, and, on the lower side of the second rim 20, with the relief 39 projecting from the third rim 90 of a third mobile 9 resting on the structure 4.

Tel que visible sur les figure 6 et 7, l'invention concerne encore un dispositif d'armage de barillet 200, comportant un organe de commande 201 qui est agencé pour être manœuvré par un utilisateur, tel une tige de commande, un poussoir, une targette, une lunette, ou similaire, et pour entraîner un pignon d'entrée 202 engrenant avec le premier mobile 1 ou le deuxième mobile 2 d'un tel mécanisme limiteur de couple 100, que comporte ce dispositif 200. Plus particulièrement, l'autre mobile de ce mécanisme 100, le deuxième mobile 2 ou respectivement le premier mobile 1, est agencé pour entraîner un rochet 203 d'un barillet moteur ou de sonnerie, le tout étant assemblé sur la structure 4 qui est, dans ce cas particulier, un pont barillet. Le limiteur de course 5 est avantageusement une vis fixée sur cette structure, ce qui facilite l'assemblage de l'ensemble du mécanisme 100 et permet le démontage.As seen on the figure 6 and 7 , the invention also relates to a barrel winding device 200, comprising a control member 201 which is arranged to be operated by a user, such as a control rod, a pusher, a target, a bezel, or the like, and to drive an input pinion 202 meshing with the first mobile 1 or the second mobile 2 of such a torque limiter mechanism 100, which this device 200 comprises. More particularly, the other mobile of this mechanism 100, the second mobile 2 or respectively the first mobile 1, is arranged to drive a ratchet 203 of a motor or striking barrel, the whole being assembled on the structure 4 which is, in this particular case, a barrel bridge. The travel limiter 5 is advantageously a screw fixed on this structure, which facilitates the assembly of the entire mechanism 100 and allows disassembly.

Ainsi, de façon particulière et propre à l'invention, la roue couronne usuelle est dédoublée en deux planches, constituant le premier mobile 1 et le deuxième mobile 2, et avantageusement dans une réalisation très économique, des premiers 31 et deuxièmes 32 bras élastiques sont découpés et pliés dans chacune d'elles. Ces planches sont ensuite montées tête-bêche à la place de la roue couronne. Le premier mobile 1 engrène avec un pignon de remontoir 202, et le deuxième mobile 2 engrène avec le rochet de barillet 203. Le premier mobile 1 et le deuxième mobile 2 sont solidaires par l'intermédiaire des bras élastiques 31 et 32, qui transmettent un couple par frottement. Si le couple appliqué sur le pignon de remontoir 202 est trop grand, les bras élastiques 31 et 32 se déforment et glissent les uns contre les autres, jusqu'à ce que le système débraye. Lors du débrayage, le saut effectué par les bras élastiques 31 et 32 lors du décliquetage produit un bruit caractéristique qui donne la quittance à l'utilisateur que le barillet est complètement rechargé.Thus, in a particular manner specific to the invention, the usual crown wheel is split into two boards, constituting the first mobile 1 and the second mobile 2, and advantageously in a very economical embodiment, first 31 and second 32 elastic arms are cut and folded in each of them. These boards are then mounted head to tail in place of the crown wheel. The first mobile 1 meshes with a winding pinion 202, and the second mobile 2 meshes with the barrel ratchet 203. The first mobile 1 and the second mobile 2 are secured by means of the elastic arms 31 and 32, which transmit a torque by friction. If the torque applied to the winding pinion 202 is too great, the elastic arms 31 and 32 deform and slide against each other, until the system disengages. When disengaging, the jump made by the elastic arms 31 and 32 during the unlatching produces a characteristic noise which informs the user that the barrel is fully reloaded.

Dans la variante illustrée par les figures, chaque mobile 1, 2, comporte trois bras élastiques 31 32. Après le débrayage, le premier mobile 1 fait un tiers de tour.In the variant illustrated by the figures, each mobile 1, 2, has three elastic arms 31, 32. After disengagement, the first mobile 1 makes a third of a turn.

Plus particulièrement, le jeu entre les serges des deux mobiles est compris entre 0.06 et 0.10 mm, et la course élastique axiale de chaque bras est de la moitié de la valeur de ce jeu.More specifically, the clearance between the rims of the two mobiles is between 0.06 and 0.10 mm, and the axial elastic travel of each arm is half the value of this clearance.

L'invention concerne encore un mouvement d'horlogerie 500 comportant, entre un mécanisme d'entrée 300 et un mécanisme de sortie 400, un tel mécanisme limiteur de couple 100.The invention also relates to a clockwork movement 500 comprising, between an input mechanism 300 and an output mechanism 400, such a torque limiter mechanism 100.

Plus particulièrement, le mécanisme d'entrée 300 est un mécanisme de calendrier ou de quantième, et le mécanisme de sortie 400 est un mécanisme d'affichage de mois, ou de jour de la semaine, ou de quantième. Et le limiteur de couple 100 est agencé pour commander, lors de tout saut d'un bras d'un mobile 1 ou 2 du limiteur de couple 100, l'avancement d'un pas de l'afficheur concerné. Par exemple la commande de la correction de l'affichage du jour de la semaine est une commande cyclique pour laquelle le dispositif selon l'invention est bien adapté. De la même façon on peut obtenir un réglage franc de correction de quantième.More particularly, the input mechanism 300 is a calendar or date mechanism, and the output mechanism 400 is a month, or day of the week, or date display mechanism. And the torque limiter 100 is arranged to control, during any jump of an arm of a mobile 1 or 2 of the torque limiter 100, the advancement of one step of the display concerned. For example, the control of the correction of the day of the week display is a cyclic control for which the device according to the invention is well suited. In the same way, a clear adjustment of date correction can be obtained.

L'invention est facilement adaptable à tout affichage semi-instantané ou traînant : mois, jours, fuseaux horaires, heures, ou autres.The invention is easily adaptable to any semi-instantaneous or trailing display: months, days, time zones, hours, or others.

L'invention permet aussi de réaliser un inverseur pour un remontage mono- ou bidirectionnel: le premier mobile 1 engrène avec une masse oscillante de remontage automatique, et le deuxième mobile 2 engrène avec le rouage de remontage. Quand le premier mobile 1 tourne dans le sens horaire, le système déclique et le deuxième mobile 2 ne tourne pas. Quand le premier mobile 1 tourne dans le sens antihoraire, il entraîne le deuxième mobile 2 au travers des extrémités distales 311, 321, des bras élastiques 31 et 32. Ainsi, plus particulièrement le mouvement 500 comporte une masse oscillante de remontage automatique et un rouage de remontage automatique, et un tel limiteur de couple 100 comportant des bras élastiques 31, 32, constitue un inverseur pour un remontage mono- ou bidirectionnel, le premier mobile 1 engrenant avec la masse oscillante de remontage automatique, et le deuxième mobile 2 engrenant avec le rouage de remontage, de façon à ce que, quand le premier mobile 1 tourne dans le sens horaire, ou respectivement antihoraire, le système déclique et le deuxième mobile 2 ne tourne pas, et quand le premier mobile 1 tourne dans le sens antihoraire, ou respectivement horaire, il entraîne le deuxième mobile 2 au travers d' extrémités distales 311,321, que comportent respectivement les bras élastiques 31, 32.The invention also makes it possible to produce an inverter for mono- or bidirectional winding: the first mobile 1 meshes with an automatic winding oscillating weight, and the second mobile 2 meshes with the winding gear train. When the first mobile 1 rotates clockwise, the system clicks and the second mobile 2 does not rotate. When the first mobile 1 rotates in the counterclockwise direction, it drives the second mobile 2 through the distal ends 311, 321, of the elastic arms 31 and 32. Thus, more particularly, the movement 500 comprises an automatic winding oscillating weight and an automatic winding gear train, and such a torque limiter 100 comprising elastic arms 31, 32, constitutes an inverter for mono- or bidirectional winding, the first mobile 1 meshing with the automatic winding oscillating weight, and the second mobile 2 meshing with the winding gear train, such that, when the first mobile 1 rotates in the clockwise direction, or respectively counterclockwise, the system unlatches and the second mobile 2 does not rotate, and when the first mobile 1 rotates in the counterclockwise direction, or respectively clockwise, it drives the second mobile 2 through distal ends 311, 321, which the arms respectively comprise elastics 31, 32.

L'invention permet aussi de réaliser un bloqueur, par exemple pour empêcher un barillet de se décharger. On peut aménager le rochet avec des bras élastiques, et le pont barillet avec des encoches, de manière à ce que les extrémités des bras tombent dans les encoches. Ainsi, plus particulièrement le mouvement 500 comporte au moins un barillet et un rochet agencés sur un pont-barillet, et un tel limiteur de couple 100 constitue un bloqueur, pour empêcher un barillet de se décharger, le rochet constituant un des mobiles 1, 2, et comportant des bras élastiques, et le pont barillet constituant une structure 4 et comportant des encoches, de manière à ce que les extrémités des bras tombent dans les encoches.The invention also makes it possible to produce a blocker, for example to prevent a barrel from discharging. The ratchet can be arranged with elastic arms, and the barrel bridge with notches, so that the ends of the arms fall into the notches. Thus, more particularly the movement 500 comprises at least one barrel and one ratchet arranged on a barrel bridge, and such a torque limiter 100 constitutes a blocker, to prevent a barrel from discharging, the ratchet constituting one of the mobiles 1, 2, and comprising arms elastic, and the barrel bridge constituting a structure 4 and comprising notches, so that the ends of the arms fall into the notches.

Plus particulièrement, le mécanisme d'entrée 300 est un mécanisme de déclenchement de répétition minutes, et le mécanisme de sortie 400 est un mécanisme de répétition minutes. Le limiteur de couple 100 est alors agencé pour commander, lors de tout saut d'un bras d'un mobile 1 ou 2 du limiteur de couple 100, le basculement d'un isolateur, que comporte le mécanisme de répétition minutes, pour interdire la commande d'une autre répétition pendant l'exécution d'une sonnerie de répétition.More particularly, the input mechanism 300 is a minute repeater trigger mechanism, and the output mechanism 400 is a minute repeater mechanism. The torque limiter 100 is then arranged to control, during any jump of an arm of a mobile 1 or 2 of the torque limiter 100, the tilting of an isolator, which the minute repeater mechanism comprises, to prohibit the control of another repeater during the execution of a repeater strike.

L'invention concerne encore une pièce d'horlogerie 1000 comportant au moins un tel mécanisme limiteur de couple 100, et/ou au moins un tel mouvement 500. Plus particulièrement, cette pièce d'horlogerie 1000 est une montre.The invention also relates to a timepiece 1000 comprising at least one such torque limiter mechanism 100, and/or at least one such movement 500. More particularly, this timepiece 1000 is a watch.

En somme, le mécanisme proposé est très simple, car il ne nécessite pas de moyen de rappel élastique autre que ceux portés par le premier mobile 1, et de préférence le deuxième mobile 2. En particulier il n'est pas nécessaire d'interposer, dans l'espace délimité par la structure 4 et le limiteur de course 5, un ressort pour plaquer l'un contre l'autre le premier mobile 1 et le deuxième mobile 2.In short, the proposed mechanism is very simple, because it does not require any elastic return means other than those carried by the first mobile 1, and preferably the second mobile 2. In particular, it is not necessary to interpose, in the space delimited by the structure 4 and the travel limiter 5, a spring to press the first mobile 1 and the second mobile 2 against each other.

L'agencement coaxial des mobiles est particulièrement avantageux, car les efforts exercés sur les mobiles sont symétriques, et l'effort transmissible est maximal. Dans le cas où l'agencement dans le mouvement d'horlogerie implique de désaxer le premier 1 et le deuxième 2 mobiles, il est avantageux d'augmenter le nombre de bras élastiques pour éviter des angles morts.The coaxial arrangement of the mobiles is particularly advantageous, because the forces exerted on the mobiles are symmetrical, and the transmissible force is maximum. In the case where the arrangement in the clockwork movement involves offsetting the first 1 and the second 2 mobiles, it is advantageous to increase the number of elastic arms to avoid blind spots.

La réalisation des mobiles peut venir, très économiquement, d'étampage, les mobiles peuvent être identiques, et éventuellement différer par leur seule denture.The production of mobiles can come, very economically, from stamping, the mobiles can be identical, and possibly differ only by their teeth.

L'invention permet à l'utilisateur de s'assurer du bon achèvement de la fonction qu'il exerce, remontage, correction d'affichage, déclenchement, et assure la protection des composants du mécanisme concerné contre tout couple excessif. Par exemple l'utilisateur peut remonter un barillet à fond sans craindre de casser un composant.The invention allows the user to ensure the proper completion of the function he is performing, winding, display correction, triggering, and ensures the protection of the components of the mechanism concerned against any excessive torque. For example, the user can wind a barrel fully without fear of breaking a component.

Claims (21)

  1. Internal torque limiting mechanism (100) for a horological movement (500), said torque limiting mechanism (100) including:
    a first wheel (1) including a first felloe (10) and arranged to pivot about a first axis of rotation (D1) relative to a structure (4), said first wheel (1) including at least a first elastic arm (31) which, in the free state of said first wheel (1), projects along the direction of said first axis of rotation (D1) relative to said first felloe (10), and
    at least a second wheel (2) including a second felloe (20) and arranged to pivot relative to said structure (4) about a second axis of rotation (D2) parallel or merged with said first axis of rotation (D1) overlapping at least partially with said first wheel (1), said second wheel (2) including at least a second arm (32) arranged to engage in frictional pressure with said first wheel (1) for the relative actuation of one by the other, said at least one second arm (32) forming a ramp and which, in the free state of said second wheel (2), projects along the direction of said second axis of rotation (D2) relative to said second felloe (20),
    a travel limiter (5) fastened to said structure (4) and which is arranged to hold said second wheel (2) on said first wheel (1) for the engagement thereof in frictional pressure in certain relative angular positions,
    the second arm (32) being arranged to, in certain relative angular positions with respect to said first wheel (1), engage in frictional pressure with at least a said first elastic arm (31) of said first wheel (1), and, in further relative angular positions, allow a frictionless relative travel between said first wheel (1) and the second wheel (2).
  2. Mechanism (100) according to claim 1, characterised in that at least a said first elastic arm (31) is movable in a first pressed section (41) of said first felloe (10).
  3. Mechanism (100) according to one of claims 1 to 2, characterised in that said second arm (32) is a second elastic arm (32).
  4. Mechanism (100) according to claim 3, characterised in that at least said second arm (32) is movable in a second pressed section (42) of said second felloe (20).
  5. Mechanism (100) according to claim 3 or 4, characterised in that said first wheel (1) and said second wheel (2) are mounted top-to-tail, with each said first elastic arm (31) projecting towards said second wheel (2), and with each said second arm (32) projecting towards said first wheel (1).
  6. Mechanism (100) according to one of claims 1 to 5, characterised in that said second axis of rotation (D2) is at a distance from said first axis of rotation (D1).
  7. Mechanism (100) according to one of claims 1 to 5, characterised in that said second axis of rotation (D2) is merged with said first axis of rotation (D1).
  8. Mechanism (100) according to claim 3 or 4, and according to one of claims 1 to 7, characterised in that each said second arm (32) is arranged to engage successively, upon a relative rotation of said second wheel (2) relative to said first wheel (1), with said first felloe (10), a said first elastic arm (31), and a said first pressed section (41) before returning in engagement with said first felloe (10).
  9. Mechanism (100) according to claim 3 or 4, and according to one of claims 1 to 8, characterised in that each said first elastic arm (31) is arranged to engage successively, upon a relative rotation of said second wheel (2) relative to said first wheel (1), with said second felloe (20), a said second arm (32), and a said second pressed section (42) included in said second wheel (2), before returning in engagement with said second felloe (20).
  10. Mechanism (100) according to one of claims 1 to 9, characterised in that each said first elastic arm (31) is an annular sector which extends substantially concentrically relative to the first axis of rotation (D1).
  11. Mechanism (100) according to claim 3 or 4, and according to one of claims 1 to 10, characterised in that each said second arm (32) extends substantially concentrically relative to said second axis of rotation (D2).
  12. Mechanism (100) according to claim 3 or 4, and according to one of claims 1 to 8, characterised in that at least a said first elastic arm (31) or/and at least a said second arm (32) extends substantially radially relative to the axis of rotation of the wheel bearing same.
  13. Mechanism (100) according to one of claims 1 to 12, characterised in that said mechanism (100) includes, at least partially superimposed along a direction parallel with the axis of rotation of each thereof, more than two wheels arranged to engage pairwise in frictional pressure, and all mounted trapped between said structure (4) and said travel limiter (5), and in that at least one intermediate wheel between the end wheels includes at least one elastic arm projecting from each side of the felloe thereof, along the axial direction thereof.
  14. Barrel winding device (200) including a control member (201) arranged to be operated by a user and actuate an input pinion (202) engaging with said first wheel (1) or said second wheel (2) of a torque limiting mechanism (100) according to one of claims 1 to 13, included in said device (200), of which said second wheel (2) or respectively said first wheel (1) is arranged to actuate a ratchet (203) of a driving or striking-mechanism barrel.
  15. Horological movement (500) including, between an input mechanism (300) and an output mechanism (400), a torque limiting mechanism (100) according to one of claims 1 to 13.
  16. Horological movement (500) according to claim 15, characterised in that said input mechanism (300) is a calendar or date mechanism, and in that said output mechanism (400) is a mechanism for displaying the month, or day of the week, or date, and in that said torque limiting mechanism (100) is arranged to command, upon any jump of an arm of a wheel (1; 2) of said torque limiter (100), the gain by one step of the display in question.
  17. Horological movement (500) according to claim 15, characterised in that said input mechanism (300) is a minute repeater release mechanism, and in that said output mechanism (400) is a minute repeater mechanism, and in that said torque limiter (100) is arranged to command, upon any jump of an arm of a wheel (1; 2) of said torque limiting mechanism (100), the control of a lifting-lever, included in said minute repeater mechanism, to inhibit the command of a further repeater during the execution of a repeater striking-mechanism.
  18. Horological movement (500) according to claim 15, characterised in that said movement (500) includes an oscillating automatic winding mass, an automatic winding train, and a torque limiting mechanism (100) according to claim 4 or 5, and according to one of claims 1 to 9, said torque limiting mechanism (100) forming a reverser for mono- or bidirectional winding, said first wheel (1) engaging with said oscillating automatic winding mass, and said second wheel (2) engaging with the winding train, such that, when said first wheel (1) turns in the clockwise, or respectively anticlockwise, direction, the system unclicks and said second wheel (2) does not turn, and when said first wheel (1) turns in the anticlockwise, or respectively clockwise, direction, it actuates said second wheel (2) via distal ends (311; 321) included in said elastic arms (31; 32).
  19. Horological movement (500) according to claim 15, characterised in that said horological movement (500) includes at least a barrel, a ratchet arranged on a barrel bridge, and a torque limiting mechanism (100) according to claim 3 or 4, and according to one of claims 1 to 8, the torque limiting mechanism forming a brake-lever, to prevent a said barrel from being discharged, said ratchet forming one of said wheels (1; 2) and including elastic arms, and said barrel bridge forming a said structure (4) and including notches, such that the ends of said arms fall into said notches.
  20. Timepiece (1000) including at least a torque limiting mechanism (100) according to one of claims 1 to 13, and/or at least a horological movement (500) according to one of claims 15 to 19.
  21. Timepiece (1000) according to claim 20, characterised in that it is a watch.
EP19160841.3A 2019-03-05 2019-03-05 Torque limiter mechanism for a timepiece Active EP3705949B1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP19160841.3A EP3705949B1 (en) 2019-03-05 2019-03-05 Torque limiter mechanism for a timepiece
JP2020034659A JP6944558B2 (en) 2019-03-05 2020-03-02 Timekeeper torque limiting mechanism
US16/805,904 US11768464B2 (en) 2019-03-05 2020-03-02 Horological torque limiting mechanism
CN202010142462.2A CN111665704B (en) 2019-03-05 2020-03-04 Timepiece torque limiting mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19160841.3A EP3705949B1 (en) 2019-03-05 2019-03-05 Torque limiter mechanism for a timepiece

Publications (2)

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EP3705949A1 EP3705949A1 (en) 2020-09-09
EP3705949B1 true EP3705949B1 (en) 2025-02-19

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EP19160841.3A Active EP3705949B1 (en) 2019-03-05 2019-03-05 Torque limiter mechanism for a timepiece

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US (1) US11768464B2 (en)
EP (1) EP3705949B1 (en)
JP (1) JP6944558B2 (en)
CN (1) CN111665704B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3705949B1 (en) * 2019-03-05 2025-02-19 ETA SA Manufacture Horlogère Suisse Torque limiter mechanism for a timepiece
EP4160320A1 (en) * 2021-10-04 2023-04-05 Patek Philippe SA Genève Timepiece mechanism
CN113878527B (en) * 2021-12-07 2022-02-25 天津海鸥表业集团有限公司 Clockwork spring torque test auxiliary fixtures
CN118304523A (en) * 2024-04-28 2024-07-09 苏州新劢德医疗器械科技有限公司 Automatic rebound structure of lid and medicine dispensing device

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1207713A (en) * 1957-08-20 1960-02-18 Otero Automatic winding mechanism, especially for wristwatches
CH408785A (en) * 1963-12-11 1966-09-30 Schild Sa A Device for winding the mainspring of a clockwork movement
CH542468A (en) * 1969-09-15 1973-11-15 Schild Sa A Unidirectional locking device of a ratchet wheel in a watch movement
ES2327350T3 (en) * 2006-04-07 2009-10-28 Eta Sa Manufacture Horlogere Suisse INVESTING MECHANISM FOR UNIDIRECTIONAL ROTARY DRIVING OF A MOBILE.
EP1845425B1 (en) * 2006-04-12 2011-07-13 Montres Breguet S.A. Chiming timepiece with a single barrel
ATE437388T1 (en) * 2007-11-08 2009-08-15 Meco Sa WINDING CROWN FOR WATCH COMPRISING A MECHANISM WITH TORQUE CLUTCH
CN201698159U (en) * 2010-06-07 2011-01-05 天津海鸥表业集团有限公司 Constant-force device of watch
JP5411081B2 (en) * 2010-07-30 2014-02-12 セイコーインスツル株式会社 Hand-wound wheel train, watch movement equipped with the train wheel, and watch equipped with the movement
EP2482143A1 (en) * 2011-01-26 2012-08-01 Nivarox-FAR S.A. Assembly by ratchet locking
JP5844985B2 (en) * 2011-03-08 2016-01-20 セイコーインスツル株式会社 Return spring structure for hand-wound watch, hand-wound mechanism and hand-wound watch with the same
JP6057659B2 (en) * 2012-10-18 2017-01-11 セイコーインスツル株式会社 Constant torque mechanism for watch, movement and mechanical watch equipped with the mechanism
EP2871534B1 (en) * 2013-11-06 2017-01-04 ETA SA Manufacture Horlogère Suisse Timepiece mobile with unidirectional wheels
EP3002636B1 (en) * 2014-10-02 2017-08-09 ETA SA Manufacture Horlogère Suisse Disengaging coaxial wheels of a watch movement
EP3021174A1 (en) * 2014-11-17 2016-05-18 LVMH Swiss Manufactures SA Monolithic timepiece regulator, timepiece movement and timepiece having such a timepiece regulator
EP3220206B1 (en) * 2016-03-16 2020-09-30 Rolex Sa Clock transmission device
EP3667431A1 (en) * 2018-12-13 2020-06-17 Montres Breguet S.A. Timepiece display wheel with friction adjustment mechanism
EP3705949B1 (en) * 2019-03-05 2025-02-19 ETA SA Manufacture Horlogère Suisse Torque limiter mechanism for a timepiece
EP3786720B1 (en) * 2019-08-27 2023-12-13 Rolex Sa Clock component for receiving an organ by insertion
EP3907564A1 (en) * 2020-05-05 2021-11-10 ETA SA Manufacture Horlogère Suisse Timepiece indexing element

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JP6944558B2 (en) 2021-10-06
US11768464B2 (en) 2023-09-26
CN111665704B (en) 2021-11-09
JP2020144126A (en) 2020-09-10
EP3705949A1 (en) 2020-09-09
US20200285196A1 (en) 2020-09-10

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