EP3316047B1 - Montre mécanique avec résonateur rotatif isochrone, insensible aux positions - Google Patents

Montre mécanique avec résonateur rotatif isochrone, insensible aux positions Download PDF

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Publication number
EP3316047B1
EP3316047B1 EP17194636.1A EP17194636A EP3316047B1 EP 3316047 B1 EP3316047 B1 EP 3316047B1 EP 17194636 A EP17194636 A EP 17194636A EP 3316047 B1 EP3316047 B1 EP 3316047B1
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EP
European Patent Office
Prior art keywords
rotation
resonator mechanism
axis
mass
inertial
Prior art date
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EP17194636.1A
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German (de)
English (en)
French (fr)
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EP3316047A1 (fr
Inventor
Pascal Winkler
Jean-Luc Helfer
Gianni Di Domenico
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
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ETA SA Manufacture Horlogere Suisse
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    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B17/00—Mechanisms for stabilising frequency
    • G04B17/04—Oscillators acting by spring tension
    • 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
    • G04B15/00—Escapements
    • G04B15/02—Escapements permanently in contact with the regulating mechanism
    • 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
    • G04B17/00—Mechanisms for stabilising frequency
    • G04B17/20—Compensation of mechanisms for stabilising frequency
    • G04B17/28—Compensation of mechanisms for stabilising frequency for the effect of imbalance of the weights, e.g. tourbillon
    • 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
    • G04B17/00—Mechanisms for stabilising frequency
    • G04B17/30—Rotating governors, e.g. centrifugal governors, fan governors
    • 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
    • G04B17/00—Mechanisms for stabilising frequency
    • G04B17/32—Component parts or constructional details, e.g. collet, stud, virole or piton
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B21/00—Indicating the time by acoustic means
    • G04B21/02—Regular striking mechanisms giving the full hour, half hour or quarter hour
    • G04B21/06—Details of striking mechanisms, e.g. hammer, fan governor
    • 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
    • G04B5/04—Automatic winding up by self-winding caused by the movement of the watch by oscillating weights the movement of which is limited

Definitions

  • the invention relates to a resonator mechanism for a clockwork movement, comprising an input mobile mounted to pivot about an axis of rotation and subjected to a motor torque, and comprising a central mobile, integral in rotation with said input mobile. around said axis of rotation and arranged to rotate continuously, said resonator mechanism comprising a plurality of N inertial elements, each mobile according to at least one degree of freedom relative to said central mobile, and returned to said axis of rotation by return means elastic, which are arranged to cause a restoring force on the center of mass of said inertial element, said resonator mechanism having a rotation symmetry of order N.
  • the invention also relates to a timepiece movement comprising at least one such resonator mechanism.
  • the invention also relates to a timepiece, in particular a watch, comprising such a timepiece movement.
  • the invention relates to the field of clock resonator mechanisms, constituting time bases.
  • the balance-spring constitutes the time base of the watch. It is also called resonator.
  • the exhaust must be robust, withstand shocks, and avoid jamming the movement (overturning).
  • the Swiss anchor exhaust mechanism has a low energy efficiency (around 30%). This low efficiency comes from the fact that the movements of the exhaust are jerky, that there are falls or lost paths to accommodate machining errors, and also from the fact that several components transmit their movement via inclined planes that rub against each other.
  • an inertial element To constitute a mechanical resonator, an inertial element, a guide and an elastic return element are required.
  • a spiral spring acts as an elastic return element for the inertial element that constitutes a pendulum.
  • This pendulum is guided in rotation by pivots which rotate in smooth ruby bearings. This gives rise to friction, and therefore to energy losses and walking disturbances, which depend on the positions, and which one seeks to suppress.
  • the losses are characterized by the quality factor Q. We seek to maximize this factor Q.
  • Requirement EP2847547 in the name of Montres BREGUET describes a mechanism for regulating the pivoting speed, around a first pivot axis, of a mobile, in particular a striking ring, comprising a pivoting counterweight around a second pivot axis parallel to the first.
  • the regulator includes means for returning the counterweight to the first axis.
  • the counterweight engages in a second volume of revolution around the first axis, contiguous and external to the first volume of revolution, and a peripheral portion of the counterweight cooperates in this second volume of revolution with regulation means arranged to cause the mobile to brake and reduce its pivoting speed to the set speed, and to dissipate excess energy.
  • the mobile is subjected to a braking torque by eddy currents.
  • Requirement EP14184155 in the name of ETA Manufacture Horlogère Suisse describes a clockwork regulating mechanism comprising, mounted mobile, at least in pivoting relative to a plate, an escapement wheel arranged to receive a driving torque via a gear train, and a first oscillator comprising a first rigid structure connected to the plate by first elastic return means.
  • This regulating mechanism comprises a second oscillator comprising a second rigid structure connected to the first rigid structure by second elastic return means, and which comprises guide means arranged to cooperate with complementary guide means which the escape wheel comprises, synchronizing the first oscillator and the second oscillator with the train.
  • This watch oscillator comprises coupling means for the interaction of the primary resonators, comprising motor means for driving a mobile in motion which comprises drive and guide means arranged to drive and guide a control means articulated with means of each articulated transmission, remote from the control means, with a mass of a primary resonator, and the primary resonators and the mobile are arranged in such a way that the axes of the articulations of any two of the primary resonators and the axis of articulation of the control means are never coplanar.
  • a timepiece assembly comprising a combined resonator with improved isochronism, with at least two degrees of freedom, which comprises a first linear or rotary oscillator with amplitude reduced in a first direction, with respect to which oscillates a second linear or rotary oscillator of reduced amplitude in a second direction substantially orthogonal to the first direction, this second oscillator comprising a second carrier mass of a slide.
  • This timepiece assembly includes a mobile arranged for the application of a torque to the resonator, this mobile comprising a groove in which the slide slides with minimum clearance. This slide is arranged for at least, either follow the curvature of the groove when it has one, or rub friction in the groove, or else push the interior lateral surfaces that the groove has by magnetized or electrified surfaces that it has the slide.
  • the document FR630831A in the name of Schieferstein describes a method and a device for the transmission of power between mechanical systems or for the control of mechanical systems, where two oscillating movements of flexible mechanisms, forming a suitable angle between them, act one on the other so that an oscillation takes place which takes place along a closed curve, and which, for the purpose of force transmission or control, is loosely coupled in accordance with a rotary movement.
  • the associated return means are attached to the plate.
  • the connecting elements between the masses are elastic, and therefore do not constitute means of kinematic connections.
  • the document WO2015 / 104963 and the document WO2015 / 104962 in the name of EPFL describe a mechanical isotropic harmonic oscillator, comprising at least one connection with two degrees of freedom, supporting a mass in orbit relative to a fixed base with springs having isotropic and linear restoring properties. More particularly, a plane spring stage forms a connection with two degrees of freedom causing a purely translational movement of the mass in orbit, so that the mass moves along its orbit while maintaining a fixed orientation. In a variant, each spring stage comprises at least two parallel springs. Again, the springs or other associated return means are attached to the plate.
  • the invention provides a rotary resonator mechanism according to claim 1.
  • a rotary resonator mechanism according to the invention is in particular designed so as to include guides, in which friction of Guidance does not dissipate energy in steady state, thus improving the quality factor.
  • the invention also relates to a timepiece movement comprising at least one such resonator mechanism.
  • the invention also relates to a timepiece, in particular a watch, comprising such a timepiece movement.
  • the invention relates to a resonator mechanism 100 according to claim 1, provided for a clockwork movement 200 intended mainly to be integrated into a watch 300.
  • the resonator mechanism 100 according to the invention is designed to be isochronous, insensitive to positions in the field of gravity, and, if not insensitive to shocks and disturbances, at least arranged to resume normal walking very quickly.
  • This resonator mechanism 100 is a rotary resonator. It has the particularity of being devoid of the usual exhaust mechanism, and of operating continuously. The absence of jerks makes it possible to considerably improve the energy efficiency, in comparison with a conventional resonator, of the balance-spring type coupled with an anchor escapement.
  • This resonator mechanism 100 comprises an input mobile 1, pivotally mounted about an axis of rotation D.
  • This input mobile 1 is subjected to a motor torque.
  • the figure 1 illustrates a conventional configuration of a timepiece movement 200 which comprises means of accumulating and storing energy 210, here comprising in a nonlimiting manner a barrel 211, arranged to conventionally drive a train 220, in particular a train of finishing, the most downstream element of which drives the input mobile 1, thus subjected to the torque of the gear train.
  • the resonator mechanism 100 comprises a common structure, which is deformable or articulated, and which is rotationally integral with the input mobile 1 around the axis of rotation D.
  • This common structure carries, or comprises, a plurality of elements inertials 2. And this common structure rotates continuously. There is no back-and-forth movement: once subjected to a motor torque, the common structure rotates in a single direction of rotation. This does not prevent that the structure can be reversible, and able to rotate in the other direction if it is subjected to a couple of opposite directions.
  • Each inertial element 2 is guided, according to at least one degree of freedom with respect to the common structure.
  • Each inertial element 2 is returned towards the axis of rotation D by elastic return means 4, which are arranged to cause a return force on the center of mass of this inertial element 2.
  • these elastic return means 4 are embedded in the rotary resonator mechanism 100.
  • This restoring force is directed towards the axis of rotation D, and has an intensity proportional to the distance R G between the axis of rotation D and the center of mass of the inertial element 2 considered.
  • the same elastic return means 4 are common to several inertial elements 2, and may in particular consist of a tension spring joining pins arranged on the inertial masses, or the like.
  • such elastic return means 4 are arranged between, on the one hand the common structure, and on the other hand an inertial mass 2, or else an arm 31, 32, carrying a inertial mass 2.
  • the common structure is elastically deformable, and constitutes such elastic return means 4.
  • the resonator mechanism 100 has rotation symmetry of order N, N being the number of inertial masses 2.
  • each inertial element 2 is guided, directly or indirectly via arms or secondary articulated systems, relative to the common structure by at least one guide means 5.
  • the figure 1 thus illustrates an example not forming part of the invention where the common structure comprises a central mobile 30, which carries at its two ends, articulation pivots 51, 52, around axes D31 and D32, and which respectively carry arms 31, 32, which themselves carry inertial elements 2: 21 and 22, which, according to the variant, can be, or else mounted idly on these arms 31, 32, at the axes D1, D2, passing through their center of mass, or mounted fixed relative to these arms.
  • the common structure comprises a central mobile 30, which carries at its two ends, articulation pivots 51, 52, around axes D31 and D32, and which respectively carry arms 31, 32, which themselves carry inertial elements 2: 21 and 22, which, according to the variant, can be, or else mounted idly on these arms 31, 32, at the axes D1, D2, passing through their center of mass, or mounted fixed relative to these arms.
  • the elastic return means 4 are in rotation, and separate: 41 and 42, arranged between, on the one hand, the central mobile 30 of the common structure 3 at the level of an internal attachment 410, 420, and on the other hand the arm 31, 32, at an external attachment 411, 421.
  • each inertial element 2 can include a degree of freedom in rotation, as in most of the present figures, or even a degree of freedom in translation as in the figure 12 .
  • the resonator mechanism 100 must control, at all times, three angles: that made by the common structure 3 with a plate of the clockwork movement, or the like, and those, ⁇ 1 and ⁇ 2, what do the centers of mass of the inertial elements 21 and 22 with respect to the common structure 3, with reference to the axes D31 and D32 of the respective guides 51 and 52.
  • N inertial elements it is a question of controlling N + 1 angles.
  • each inertial element tends to move away from the axis of rotation D, to a radial position where the friction of the air print a resistant torque which balances, in a tangential direction, the effect of the torque applied to the input mobile 1, relative to the center of mass of the inertial element.
  • a resistant torque which balances, in a tangential direction, the effect of the torque applied to the input mobile 1, relative to the center of mass of the inertial element.
  • the centrifugal force which balances the radial component of the restoring force impressed by the elastic restoring means 4.
  • the angular speed of rotation is equal to the square root of the quotient of the stiffness of the elastic return means by the mass of the inertial element, while the instantaneous radius of the center of mass with respect to the axis of rotation D is equal at the square root of the quotient between the engine torque and the product of the angular speed and the coefficient of friction between the ambient medium and the inertial element.
  • the centers of mass of the inertial elements tend to reach the axis of rotation D, when the drive means are stopped, this position corresponding to the exercise of zero tensile force on the part of the elastic return means 4 It may be easier to produce a resonator mechanism 100 where the inertial masses 2 approach the axis of rotation, especially if these inertial masses 2 are in the same plane, and for example come into contact with one another. 'other in a rest position, the elastic return means 4 then being assembled with a prestress.
  • the disturbance due to the gravity field tends, in certain positions of the watch 300, to differentiate the behavior of the inertial elements.
  • the figure 1 has a reference Z, in the plane of the sheet and directed towards the bottom of the sheet, which indicates the vertical of the place and the field of gravity, the inertial element 22 tends to deviate from the common structure 3, while the inertial element 21 tends to approach it. If the inertial elements 2 are completely free radially, it may thus be that they are located on different radii with respect to the axis of rotation D.
  • the rotary resonator mechanism 100 advantageously comprises a kinematic connection, and more particularly a rigid kinematic connection, between at least two inertial elements 2, and preferably between all the inertial elements 2.
  • This connection forces the inertial elements 2 to find at the same distance of the axis of rotation D, permanently.
  • the inertial elements 2 have only one degree of freedom with respect to the common structure 3.
  • This kinematic link is useful at low frequencies, 2 to 5 Hz in particular.
  • the speed of rotation of the common structure 3 is high, in particular corresponding to a period greater than or equal to 20 Hz, for example of the order of 50 Hz, the effect of the gravity field is negligible compared to the effects of inertia, and such a kinematic link is not essential.
  • Such a very simple embodiment may be suitable for single-use applications, such as fireworks or the like.
  • Kinematic connection becomes necessary, however, as soon as one seeks to achieve good chronometric performance, in particular for use in a watch.
  • kinematic connections Different examples of such kinematic connections are illustrated on the figures 2 , 3 , 4 , 8 , 9, 10 , 12, 13 , 14, 15 and 16 , and will be discussed later. Most are rigid articulated kinematic connections, some illustrating flexible kinematic connections.
  • the resonator mechanism 100 comprises a structure articulated in pantograph in symmetry about the axis of rotation D, comprising at least all the inertial elements 2, articulated directly, or articulated indirectly by means of arms which are designated, depending on the variants, by the references 31, 32, 131, 132, 121, 122, 123.124, around the central mobile 30 and a secondary central mobile 130 which is arranged to pivot about the axis of rotation D, and which constitutes with the central mobile 30 a crossed structure.
  • arm here is meant a component comprising two articulations.
  • pantograph is used to designate a double articulated structure around a central axis, the double diamond shape is more particularly illustrated in the figures; the part of the structure located on one side of the central axis is called a "half pantograph".
  • the pantograph has two half pantographs, with common elements, forming a crossed structure.
  • this cross structure constituted by the central mobile 30 and the secondary central mobile 130 has its center of mass on the axis of rotation D.
  • the kinematic connection and the guides are made by combining, on the basis of the example of the figure 1 , a central mobile 30, a secondary central mobile 130 pivoting around the axis of rotation D at an axial pivot, the two arms 31 and 32 pivoted on the central mobile 30, two other secondary arms 131 and 132 pivoted mad , both on the secondary central mobile 130 around axes D131 and D132, at the level of non-detailed pivots, and on the inertial elements 21 and 22 at the level of axes D1 and D2, and the seven articulations necessary for its operation, so as to form a pantograph having a rotation symmetry of order 2.
  • the secondary central mobile 130 pivots madly about the axis of rotation D.
  • the elastic return means 41 and 42 are the same as on the figure 1 , since the linkage formed by the two arms 131 and 132 around the secondary central mobile 130 is passive, its only function being to maintain the centers of mass of the inertial elements 21 and 22 in symmetry with respect to the axis of rotation D.
  • certain arms can constitute inertial elements.
  • the variant of the figure 3 very close to that of the figure 2 , illustrated in a folded position, combines the inertial element 21 and the secondary arm 131 to constitute an inertial element 121, and combines the inertial element 22 and the secondary arm 132 to constitute an inertial element 123, the arm 31 constituting an element inertial 122, and the arm 32 constituting an inertial element 124.
  • the variant of the figure 4 very compact, comprises four inertial elements which also constitute arms 31, 32, 131, 132, articulated in pantograph around the central mobile 30 and the secondary central mobile 130.
  • FIGs 5 and 6 are diagrams of the half pantograph, with in figure 6 the polar coordinates of the center of mass of a segment j.
  • segment the geometric definition of one side of the rhombus of the half pantograph, and we designate by “arm” the physical component incorporated into the mechanism.
  • each arm (31; 32; 131; 132; 121; 122; 123; 124) which is between two joints, is located on a straight line joining the two joints on either side of the arm considered.
  • each member of the half-pantograph has four segments of equal length L, together constituting a regular diamond.
  • the center of mass of the central mobile 30 and that of the secondary central mobile 130 are on the axis of rotation D of the resonator mechanism 100, and the centers of mass of each of the inertial arms are on a line defined by the two articulations of the corresponding arm.
  • Such a pantograph type structure combined with adequate elastic return means, thus constitutes a mechanism which, theoretically, makes it possible to guarantee the constancy of the period of rotation of the input mobile 1, and to ensure the insensitivity to changes in position in the gravity field.
  • a particular embodiment of the invention relates to a mechanism whose at least one of the guide elements and at least one of the elastic return means 4 are produced jointly by a flexible guide. That is to say that the distinct functions of guidance and elasticity are carried out by a single flexible guidance. More particularly, with the exception of the guides at the level of the axis of rotation, all of the guides in rotation and of the elastic return means are produced by flexible guides.
  • At least one such flexible guide comprises at least two blades included in planes, and which define with each other the virtual axis of rotation of a flexible rotary guide.
  • the figure 8 thus illustrates a structure close to that of figures 3 and 4 , devoid of pivot articulation, except at the level of the axis of rotation D, and the arms 31, 131, 32, 132 of which constitute the pantograph segments form the inertial elements.
  • the flexible guides each comprise two blades, arranged in parallel and distinct levels, and which, in projection on a parallel plane, intersect at the level of the axes of articulation D31, D1, D131, D132, D2 , and D32.
  • FIG. 8A, 8B and 8C A simple realization is illustrated in Figures 8A, 8B and 8C , and consists of the superposition of a one-piece upper structure 101, which includes all of the upper blades 103, and of a one-piece lower structure 102, which includes all of the lower blades 102.
  • These upper structure 101 and lower structure 102 can be very easily assembled to each other, by gluing, riveting, or the like, and the radial positions of the various articulations, as well as the symmetry of the inertial elements, with respect to the axis of rotation D, are perfectly guaranteed.
  • these flexible rotary guides between two components are of the type with crossed blades in projection, as explained above, whose opening angle ⁇ , read on the projection plane between the crossing axis C and the points of embedding of the blades on one of the components, has a value of 40 ° +/- 4 °, and the blades crossing at a length proportion of 0.15 +/- 0.015.
  • This crossing can be carried out both near the most mobile component, that is to say whose stroke is the greatest, as well as the least mobile component, and it is in general determined by the dimensioning of the components to ensure the required distance between the installation points of the boards.
  • the flexible guides are made of oxidized silicon to compensate for the thermal effects.
  • FIGS 9 to 16 where only the variant of figure 11 is part of the invention, illustrate several variants making it possible to guarantee the radial symmetry of movement of the centers of mass of the inertial elements, as the case may be, on the basis of articulated rigid kinematic connections, or else of flexible kinematic connections.
  • Figures 9 and 10 comprises, to establish the rigid kinematic connection between the inertial elements 2 (21 and 22), a toothed wheel 60 mounted idly concentrically with the axis of rotation D, and which cooperates permanently with two toothed sectors 61 and 62 integral with the inertial elements 21 and 22.
  • the latter are shown here articulated on the common structure 3 by such flexible guides with crossed blades in projection 41 and 42.
  • the central mobile 30 is fixed to the input mobile 1 by an elastic connection 80, and the secondary central mobile 130 pivots around the axis of rotation D, but this pivoting is limited by an elastic connection 80 connecting it to the input mobile 1.
  • the central mobile 30 and the secondary central mobile 130 are each subjected to a drive torque equivalent to half the equivalent exhaust torque in a conventional exhaust mechanism.
  • this elastic connection 80 is a flexible rotary guide, in particular comprising two elastic blades.
  • the figure 12 illustrates another variant, not forming part of the invention in which the kinematic connection comprises radial linear guide means 90, with a radial guide bar 91 sliding in bores 911 and 912 of the inertial elements 21 and 22.
  • the means elastic return 4 are here constituted each time by a vee spring 41, 42.
  • the figure 13 illustrates yet another variant, not forming part of the invention and in which the kinematic connection comprises curvilinear guide means 95, combining a curved groove 35 of the central mobile 30, and a pin 25 carried by the inertial element 21, 22, concerned.
  • the elastic return means 4 comprise, for the suspension and the return of each inertial element 21, 22, two elastic blades 45 and 46 substantially parallel to one another, so as to limit the movement of each inertial element 21, 22, according to a single degree of freedom.
  • the figure 14 represents a structure close to that of the figure 9 , not part of the invention and comprises a toothed wheel 60 mounted idly concentrically with the axis of rotation D, and which cooperates permanently with two intermediate wheels 610 and 620, which themselves mesh with wheels or sectors toothed 61 and 62 integral with the inertial elements 21 and 22 and the arms 31 and 32.
  • the latter are shown here articulated on the common structure 3 by conventional tension springs.
  • the figure 15 illustrates a variant not part of the invention and where the kinematic connection is not rigid, but flexible, the common structure 30 being a flexible blade which carries the inertial elements 21 and 22, which each carry an arm carrying a rack element 161, 162, which cooperates with an axial idler wheel 60.
  • the inertial elements 21 and 22 can however move according to two degrees of freedom.
  • elastic return means 4 which comprise, for the suspension and the return of each inertial element 21, 22, two elastic blades 45 and 46 substantially parallel to each other, so as to limit the movement of each inertial element 21, 22, according to a single degree of freedom.
  • the complete resonator mechanism 100 (guide, inertial element, elastic return means, arm, mobile) is in one piece.
  • the entire rotary resonator can be made of silicon machined by multi-level DRIE, for example.
  • this execution is awkward, in particular when using blades crossed in different levels, it is advantageously possible, as in the case of the figure 8A , superimpose an upper structure 101 in one piece and a lower structure 102 in one piece, each simple to manufacture, and which can be very easily assembled together, by gluing, riveting, screwing or the like. More particularly, the one-piece upper structure 101 and the one-piece lower structure 102 are assembled to each other irreversibly to create a non-removable one-piece component.
  • the frequency of rotation of the rotary resonator mechanism 100 is greater than 20 Hz, and in particular greater than 50 Hz. This relatively high frequency makes it possible to limit the sensitivity to positions in the gravity field, in the case which is not part of the invention where there is no kinematic link.
  • the invention designed for counting time, can also be used for other mechanisms, such as a ringing regulator, or the like.
  • the elastic return means of the invention are embedded in the rotary resonator, which simplifies its construction.
  • the kinematic connection means of the invention reduce the number of degrees of freedom of the system by completely linking the displacement of the masses, whereas in the prior art, the link is flexible and cannot reduce the number of degrees of freedom.
  • the invention also relates to a timepiece movement 200, comprising a plate carrying means of energy accumulation and storage 210, in particular at least one barrel 211, arranged to conventionally drive a gear train 220, in particular a gear train , the most downstream element of which is arranged to drive the input mobile 1 of such a rotary resonator mechanism 100, which comprises this movement 200.
  • the invention also relates to a timepiece, in particular a watch 300, comprising at least one timepiece movement 200, and / or such a rotary resonator mechanism 100.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Micromachines (AREA)
  • Transmission Devices (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
  • Electromechanical Clocks (AREA)
  • General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
EP17194636.1A 2016-10-25 2017-10-03 Montre mécanique avec résonateur rotatif isochrone, insensible aux positions Active EP3316047B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP16195399 2016-10-25

Publications (2)

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EP3316047A1 EP3316047A1 (fr) 2018-05-02
EP3316047B1 true EP3316047B1 (fr) 2020-05-27

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US (1) US10126711B2 (zh)
EP (1) EP3316047B1 (zh)
JP (1) JP6476255B2 (zh)
CN (1) CN107976890B (zh)
CH (1) CH713069A2 (zh)
HK (1) HK1253931A1 (zh)
RU (1) RU2743150C2 (zh)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3410231B1 (fr) * 2017-05-29 2021-06-30 Montres Breguet S.A. Mécanisme d'horlogerie
EP3435173B1 (fr) * 2017-07-26 2020-04-29 ETA SA Manufacture Horlogère Suisse Mouvement mécanique avec résonateur rotatif, isochrone, insensible aux positions
EP3812843A1 (fr) 2019-10-25 2021-04-28 ETA SA Manufacture Horlogère Suisse Guidage flexible et ensemble de guidages flexibles superposés pour mécanisme résonateur rotatif, notamment d'un mouvement d'horlogerie
EP3926412A1 (fr) * 2020-06-16 2021-12-22 Montres Breguet S.A. Mécanisme régulateur d'horlogerie

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CN107976890A (zh) 2018-05-01
CH713069A2 (fr) 2018-04-30
CN107976890B (zh) 2019-11-01
US20180113420A1 (en) 2018-04-26
JP2018072329A (ja) 2018-05-10
JP6476255B2 (ja) 2019-02-27
RU2017135092A3 (zh) 2021-01-19
RU2017135092A (ru) 2019-04-05
EP3316047A1 (fr) 2018-05-02
HK1253931A1 (zh) 2019-07-05
RU2743150C2 (ru) 2021-02-15
US10126711B2 (en) 2018-11-13

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